Abrégé

The present invention relates to the field of low-voltage electrical appliances, in particular to a miniature circuit breaker, comprising a circuit breaker housing, a button mechanism, an operating mechanism, a movable contact, and a static contact. The operating mechanism comprises a support member, a trip fastener, a lock fastener, and a trip lever. The trip lever comprises a trip lever connecting end and a trip lever driving end. When the miniature circuit breaker is in an open state, if the button mechanism is pressed, the operating mechanism is driven to operate, the operating mechanism drives the movable contact and the static contact to be closed, and the trip lever driving end moves to a position matched with the trip fastener; if the button mechanism is pressed again, the trip lever driving end of the trip lever drives the trip fastener to rotate to enable the trip fastener and the lock fastener to be released from the locking fit, the operating mechanism operates and drives the movable contact to be separated from the static contact, so that the miniature circuit breaker enters the opening state, and the trip lever is reset to an initial position at the same time. The opening/closing operation of the miniature circuit breaker can be achieved by pressing the button mechanism.

Classes IPC  ?

• H01H 71/10 - Mécanismes d'actionnement ou de déclenchement
• H01H 71/58 - Mécanismes à réarmement manuel actionnés par bouton-poussoir, bouton-tirette ou coulisse

Abrégé

A compact circuit breaker comprises a housing (2), a button mechanism (1) and an indication device. The housing (2) has an indication hole (201) arranged at one side thereof. The button mechanism (1) is slidably engaged with the housing (2). The button mechanism (1) is engaged with and used to drive the indication device. When pressed to cause the compact circuit breaker to close, the button mechanism (1) drives the indication device to conceal the indication hole (201). The indication device of the compact circuit breaker can indicate a closing state of the circuit breaker when the circuit breaker closes, thereby enhancing electricity usage safety.

Classes IPC  ?

• H01H 71/10 - Mécanismes d'actionnement ou de déclenchement
• H01H 71/58 - Mécanismes à réarmement manuel actionnés par bouton-poussoir, bouton-tirette ou coulisse

Abrégé

The present invention relates to the field of low-voltage electric appliances, in particular to a miniature circuit breaker. The miniature circuit breaker comprises a button mechanism, a circuit breaker housing, and a locking mechanism. The button mechanism is disposed on one end of the circuit breaker housing and is in sliding fit with the circuit breaker housing; the locking mechanism comprises a second locking piece, which is pivotally disposed on the circuit breaker housing; the circuit breaker housing comprises a second opening hole formed in one side of the circuit breaker housing; one end of the second locking piece is in driving fit with the button mechanism, and the other end penetrates through the second opening hole to be in limiting fit with the housing at the assembling position of the circuit breaker; when the button mechanism is pulled out of the circuit breaker housing, the button mechanism drives the second locking piece to rotate, so that the limiting match between the second locking piece and the housing at the assembling position of the circuit breaker is released. According to the miniature circuit breaker provided by the present invention, a reliable limiting fit is formed between the locking mechanism and the housing at the assembly position of the circuit breaker, so that the stability and the reliability of the assembly of the miniature circuit breaker are ensured.

Classes IPC  ?

• H01H 71/10 - Mécanismes d'actionnement ou de déclenchement
• H01H 71/58 - Mécanismes à réarmement manuel actionnés par bouton-poussoir, bouton-tirette ou coulisse

Abrégé

A miniature circuit breaker, relating to the field of low-voltage electrical appliances. The miniature circuit breaker comprises a button mechanism (1), a circuit breaker shell (2), and an anti-closing mechanism; the button mechanism (1) is provided at one end of the circuit breaker shell (2) and slidably fits the circuit breaker shell; the anti-closing mechanism comprises a first locking member (3); the first locking member (3) is pivotally provided on the circuit breaker shell (2); one end of the first locking member (3) is in locking fit with the button mechanism (1) to stop the button mechanism (1) from moving towards a closing direction; after the miniature circuit breaker is assembled to a circuit breaker assembly position and mounted in place, the shell at the circuit breaker assembly position acts on the first locking member (3), so that after the first locking member (3) is released from the locking fit with the button mechanism (1), the button mechanism (1) can move towards the closing direction to perform a closing operation. The anti-closing mechanism of the miniature circuit breaker ensures that the circuit breaker can be closed only after being assembled to the circuit breaker position and mounted in place, and ensures the use safety.

Classes IPC  ?

• H01H 71/10 - Mécanismes d'actionnement ou de déclenchement
• H01H 71/58 - Mécanismes à réarmement manuel actionnés par bouton-poussoir, bouton-tirette ou coulisse

Abrégé

Disclosed is a manual operation mechanism handle for a circuit breaker, the handle comprising an operation handgrip (15), a lock-up device (12), and a locking shaft (14), wherein the middle of the lock-up device (12) is pivotally arranged on the operation handgrip (15), a front end of the lock-up device (12) is connected to the locking shaft (14), the lock-up device (12) is connected to the operation handgrip (15) by means of a first driving member, a rear end of the lock-up device (12) cooperates with a locking mechanism in limiting manner, the rear end of the lock-up device (12) is provided with a lock-up hole (21), and the lock-up hole (21) is blocked by the operation handgrip (15). When the circuit breaker is in a opened state, the locking mechanism is unlocked, the first driving member enables the front end of the lock-up device (12) to move down to drive the locking shaft (14) to lock the operation handgrip (15), and at the same time, the rear end of the lock-up device (12) is raised, such that the lock-up hole (21) is released from the operation handgrip (15). The locking mechanism can realize locking of the lock-up device (12), and a user can conveniently rotate the operation handgrip (15), such that after the locking mechanism is unlocked by means of the opening/closing of the circuit breaker, the lock-up device (12) can automatically drive the locking shaft (14) to lock the operation handgrip (15).

Classes IPC  ?

• H01H 9/28 - Mécanismes d'interverrouillage, verrouillage ou accrochage pour verrouiller des pièces de l'interrupteur par une clé ou un élément équivalent amovible

Abrégé

CA 03086613 2020-06-22 ABS TRACT A drawer type circuit breaker, the circuit breaker body is rocked into and out of the drawer base; a safety baffle is provided between the drawer base and the circuit breaker body to block a drawer base busbar or a bridge type contact of the drawer base; and a front- rear displacement device for the safety baffle to move toward a movement direction of the drawer base is provided on the safety baffle and the drawer base. According to the drawer type circuit breaker of the present invention, the front-rear displacement device is provided on the safety baffle and the drawer base, the safety baffle is displaceable front and back, and the drawer base busbar may penetrate out of the safety baffle. The mounting position of the bridge type contact is more flexible, and the connection of the main circuit is more stable and reliable. Date Recue/Date Received 2020-06-22

Classes IPC  ?

• H02B 11/24 - Volets ou protecteurs

Abrégé

A direct-acting electromagnetic trip device comprises a housing, and an adjustment mechanism, a linkage mechanism, an electromagnetic system and a trip mechanism that are provided in the housing. The adjustment mechanism is connected to the linkage mechanism, the linkage mechanism is connected to one end of an iron core of the electromagnetic system, and meanwhile the linkage mechanism is connected to the trip mechanism; when there is a trip current in the electromagnetic system, the iron core of the electromagnetic system moves, driving the linkage mechanism, and the linkage mechanism drives the trip mechanism to complete the action of tripping; the adjustment mechanism comprises a rotary knob and an adjustment rod, the rotary knob abuts against and cooperates with the adjustment rod, and the adjustment rod abuts against and cooperates with the linkage mechanism, the electromagnetic system also comprises an elastic member, the elastic member pushing the iron core such that the linkage mechanism abuts against the adjustment rod and the rotary knob abuts against the adjustment rod; rotating the rotary knob can trigger the adjustment rod to move up and down to drive the linkage mechanism to move, such that the linkage mechanism drives the iron core to move up and down, so as to adjust the trip current of a product. The direct-acting electromagnetic trip device has a simple and compact structure, safe and stable performances and is easy to fit.

Classes IPC  ?

• H01H 71/24 - Mécanismes électromagnétiques
• H01H 71/74 - Moyens pour régler les conditions dans lesquelles le dispositif doit fonctionner pour assurer la protection

Abrégé

The present invention discloses a data transmission device of a circuit breaker controller. The data transmission device comprises: a first assembly having a first power supply and a second assembly having a second power supply. The first assembly and the second assembly share a storage device. The second assembly is connected to a main circuit of the circuit breaker controller. The second assembly collects parameters of the main circuit and stores the parameters in the storage device. The second power supply powers the second assembly and is powered by the main circuit. The first assembly is connected to communication equipment. The first assembly establishes data transmission between the communication equipment and the storage device. The first power supply powers the first assembly and is powered by an external power supply. The second power supply is connected to the first power supply and transmits a control signal to the first power supply.

Classes IPC  ?

• H01H 71/00 - INTERRUPTEURS ÉLECTRIQUES; RELAIS; SÉLECTEURS; DISPOSITIFS DE PROTECTION - Détails des interrupteurs ou relais de protection compris dans les groupes
• G05B 19/042 - Commande à programme autre que la commande numérique, c.à d. dans des automatismes à séquence ou dans des automates à logique utilisant des processeurs numériques
• H02H 3/00 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion
• H04B 1/40 - Circuits

Abrégé

An indication device of an electric switch comprises an indication member (101), drive component (103) and a position-holding component (102). The indication member (101) has at least three indication positions. Each of the indication positions corresponds to one state of the electric switch, and the indication member (101) shows one indication marker at each indication position. The indication device of an electric switch uses one single indication member (101) having at least three indication positions, and the third position is provided via deformation of the indication member (101) itself, thus realizing a simpler structure and lower manufacturing cost.

Classes IPC  ?

• H01H 9/16 - Indicateurs de position, p.ex. "marche" ou "arrêt"
• H01H 71/04 - Moyens pour indiquer l'état du dispositif de commutation

Abrégé

A current transformer comprises a closed magnetic circuit, which has a first part and a second part. The first part completely surrounds a primary conductor. The second part comprises branch magnetic circuits. A secondary winding is formed on each branch magnetic circuit. Each branch magnetic circuit serves as a magnetic core of the corresponding secondary winding. The secondary windings are staggered in at least one of a length direction, a thickness direction, and a height direction. The secondary windings are connected with each other in series or in parallel by respective leads. Each branch magnetic circuit is formed by splitting of laminated or wound soft magnetic metal sheets.

Classes IPC  ?

• H01F 38/28 - Transformateurs d'intensité

Abrégé

A controller for an alternating current contactor comprises a filtering and rectification circuit; an electromagnet component driven by an output of the filtering and rectification circuit and performing actions of attraction, holding or releasing; a power transistor circuit connected to the electromagnet component; and a microcontroller, which controls on or off of the power transistor circuit to control the electromagnet component. The controller comprises a voltage control loop, which provides a voltage feedback signal to the microcontroller; and a current control loop, which provides a current feedback signal to the microcontroller. The microcontroller generates a PWM control signal according to the voltage feedback signal. The PWM control signal has different duty cycles during the attraction and holding of the electromagnet component so that the current does not exceed a predetermined current threshold. The microcontroller turns off the power transistor circuit upon detecting an overcurrent exceeding the current threshold.

Classes IPC  ?

• H01H 47/02 - Circuits autres que ceux appropriés à une application particulière du relais et prévue pour obtenir une caractéristique de fonctionnement donnée ou pour assurer un courant d'excitation donné en vue de modifier le fonctionnement du relais

Abrégé

The present invention discloses a changeable mechanism, the changeable mechanism comprises a support contact, a connecting rod, a connecting shaft, a cantilever and a changeable component. The support contact is provided with a moving contact therein, the support contact rotates about a shaft to make the moving contact be separated from or in contact with a static contact. The bottom end of the connecting rod is connected to the contact support, the top end of the connecting rod is connected to a cantilever through a connecting shaft. The changeable component is connected to the cantilever through a main shaft, the changeable component acts and drives the cantilever to act through the main shaft, and further drives the contact support to rotate through the connecting shaft and the connecting rod. The rotation of the contact support makes the moving contact and the static contact to be separated from or in contact with each other so as to realize opening or closing of a circuit breaker. The changeable component is a manual operation mechanism or an energy storage mechanism. The changeable operation mechanism of the present invention may realize a convenient switch between a manual operation mechanism and an electrical operation mechanism of a MCB. The changeable component does not dispose the electrical operation mechanism outside the MCB, so that the height and volume of the MCB is reduced.

Classes IPC  ?

• H01H 71/10 - Mécanismes d'actionnement ou de déclenchement

Abrégé

A contact module for a breaker comprises a substrate (101), an upper cover (102), an operation mechanism (103), three single-pole switches, and a tripping mechanism (104). The upper cover covers the substrate, and the upper cover and the substrate together form an accommodation space; the operation mechanism, the three single-pole switches, and the tripping mechanism are disposed inside the accommodation space. The operation mechanism is connected to one of the single-pole switches, and the tripping mechanism is connected to the three single-pole switches. The three single-pole switches are asymmetrical and each comprise a strong side and a weak side. A contact housing at the strong side of each single-pole switch is thick and is connected to a thick rotating shaft, and a contact housing at the weak side of each single-pole switch is thin and is connected to a thin rotating shaft. A rotor part of each single-pole switch only has a single-contact spring, and the single-contact spring is mounted at the weak side. The adjacent single-pole switches are connected to the rotating shaft by a linkage shaft and driven in a linked manner, and a strong side of one single-pole switch is adjacent to a weak side of the other single-pole switch.

Classes IPC  ?

• H01H 71/02 - Boîtiers; Enveloppes; Socles; Garnitures
• H01H 71/10 - Mécanismes d'actionnement ou de déclenchement
• H01H 71/12 - Mécanismes de déclenchement automatique avec ou sans déclenchement manuel
• H01H 73/04 - Contacts

Abrégé

An adjustable electromagnetic release. A magnetic yoke (102) is fixed on a bracket (109); a conductor (104) passes through the bracket and the yoke and is mounted on the bracket; a shaft (107) is mounted on the top of the bracket and is positioned above the conductor; a push rod (103) is mounted on the shaft and rotates with the shaft responsive to the bracket; an armature (101) is fixed on the push rod; the armature and the yoke are spaced apart; two adjusting mechanisms are mounted on the shaft and mounted on both sides of the push rod between the push rod and the bracket; a torsion spring (120) surrounds the shaft and is positioned in the adjusting mechanism; the adjusting mechanism contacts with the push rod; an adjusting rod (110) is provided with a plurality of adjusting surfaces (115) which contact with the adjusting mechanism and can move in the longitudinal direction. The spring force of the torsion spring enable the push rod rotates towards the direction of the armature and the yoke apart. When large current passes through the conductor, the armature and the yoke attract each other under the electromagnetic force; When the electromagnetic force is greater than the spring force, the push rod rotates towards the direction of the armature and the yoke attracted; the push rod strikes the release mechanism to release and cut off the circuit; the electromagnetic force disappears; and the push rod resets under the spring force of the torsion spring.

Classes IPC  ?

• H01H 71/24 - Mécanismes électromagnétiques

Abrégé

A manually operated device of a low-voltage power switch, comprising: an operation handle (1) is provided with a fixed groove (101) thereon; the fixed groove (101) matches a second fixed plate (6) disposed therein; a reset torsion spring (2) is disposed between the second fixed plate (6) and the fixed groove (101); a pawl (5) is rotatably installed on the second fixed plate (6) via a fixed pin (4), and rotates around the fixed pin (4); one end of a first reset spring (3) is connected to the top of the pawl (5), and the other end of the first reset spring (3) is connected to the operation handle (1) installed on a mounting shaft of the operation mechanism; a mounting plate (8) is installed with a rotating shaft (11), the rotating shaft (11) being a rotating shaft of an energy storage mechanism; the mounting shaft and the rotating shaft (11) are different; a ratchet wheel (7) is rotatably installed on the rotating shaft (11); the bottom of the pawl (5) clamps between the teeth of the ratchet wheel (7); the bottom portion of the mounting plate (8) is installed with a detent (9) rotatably installed on the mounting plate (8); the top of the detent(9) clamps between the teeth of the ratchet wheel (7); one end of a second reset spring (10) is connected to the bottom of the detent (9), and the other end of the second reset spring (10) is fixed to the mounting plate (8).

Classes IPC  ?

• H01H 71/50 - Mécanismes à réarmement manuel

Abrégé

The present invention discloses a protection module for a control and protective switching device, comprising a control power supply processing unit, an auxiliary power supply processing unit, a power supply converting unit, a signal processing and controlling unit, a trip electromagnet driving unit, a control electromagnet driving unit, and a man-machine interaction device . The control power supply processing unit and the auxiliary power supply processing unit receive a power supply signal from a high voltage power supply, and process the signal for supplying power for other components. The signal processing and controlling unit receives a mutual-induction signal from a current mutual inductor , outputs a first control signal and a second control signal to the trip electromagnet driving unit and the control electromagnet driving unit, and receives a first feedback signal and a second feedback signal from an operation mechanism and a control electromagnet. The trip electromagnet driving unit outputs a first operation signal to a trip electromagnet, and the trip electromagnet outputs a mechanical signal to the operation mechanism. The control electromagnet driving unit outputs a second operation signal to the control electromagnet. The man-machine interaction device performs signal interaction with the signal processing and controlling unit.

Classes IPC  ?

• H02H 7/22 - Circuits de protection de sécurité spécialement adaptés pour des machines ou appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou ligne, et effectuant une commutation automatique dans le cas d'un chan pour dispositifs de commutation

Abrégé

A low voltage apparatus includes a mechanical interlock,which comprises at least two contactors, wherein every contactor includes a base (11, 21), a support (12, 22), a top cover (4) and a contact holding sliding part (13, 23) in the base. Two contactors which are arranged in parallel both have one mechanical interlock, which includes an interlocking element (3). The shaft of the interlocking element (3) may rotate in the groove of the base (11, 21). By the swinging of the interlocking element (3), a tentacle of the interlocking element (3) extends into the locking aperture of the contact holding sliding part, thereby preventing the connecting action of the contact holding sliding part.

Classes IPC  ?

• H01H 9/26 - Mécanismes d'interverrouillage, verrouillage ou accrochage pour interverrouillage de plusieurs interrupteurs