CN218602350U

CN218602350U - Circuit breaker

Info

Publication number: CN218602350U
Application number: CN202222884614.3U
Authority: CN
Inventors: 董晓怡; 成义; 甘新华
Original assignee: Zhejiang Chint Electrics Co Ltd
Current assignee: Zhejiang Chint Electrics Co Ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-03-10
Anticipated expiration: 2032-10-31

Abstract

The utility model belongs to the technical field of low-voltage electrical appliances, and discloses a circuit breaker, which comprises a circuit breaker body and a power supply conversion unit, wherein the circuit breaker body comprises at least two first alternating voltage input ends and at least two first alternating voltage output ends; the power supply conversion unit comprises a second alternating voltage input end, a second alternating voltage output end, a direct current voltage output end and an AC/DC module, wherein the second alternating voltage input end is correspondingly and conductively connected with the first alternating voltage output end, the AC/DC module enables alternating voltage input through the second alternating voltage input end to be converted into direct current voltage and output through the direct current voltage output end, and the second alternating voltage output end is used for outputting alternating current voltage. The utility model provides a circuit breaker all sets up the AC/DC module that corresponds with current every load and compares, has simplified the assembly step of power conversion unit, has saved whole occupation space, has also reduced the cost of manufacture of electric wire netting equipment.

Description

Circuit breaker

Technical Field

The utility model relates to a low-voltage apparatus technical field especially relates to a circuit breaker.

Background

The power grid equipment is gradually developed towards intellectualization, digitization and informatization, and in recent years, various sensors and communication devices appear in the power grid, and even traditional circuit breakers and micro-switches are gradually developed towards intellectualization. More and more intelligent devices are required to work under the direct-current voltage of 24V, 12V or 5V and the like, and the alternating current of 220V is output by a power grid and cannot be used for directly supplying power to the intelligent devices.

In the prior art, an AC/DC (alternating current to direct current) conversion circuit is arranged inside the smart device, and 220V alternating current is converted into direct current required by the smart device to supply power to the smart device, however, the number of smart devices in the power grid device is large, each smart device is provided with an AC/DC module, and the modules are cumbersome to install, occupy a large amount of space, and are high in cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a breaker, compared with the existing AC/DC module which is arranged corresponding to each load, the assembly steps are simplified, the whole occupied space is saved, and the manufacturing cost of the power grid equipment is also reduced; modular structure is applicable to the novel circuit breaker of multiple model, also can reform transform traditional circuit breaker according to the demand simultaneously.

To achieve the purpose, the utility model adopts the following technical proposal:

a circuit breaker, comprising:

a circuit breaker body comprising at least two first alternating voltage input terminals and at least two first alternating voltage output terminals;

the power conversion unit comprises a second alternating voltage input end, a second alternating voltage output end, a direct current voltage output end and an AC/DC module, wherein the second alternating voltage input end is electrically connected with the first alternating voltage output end in a corresponding mode, the AC/DC module enables alternating voltage input through the second alternating voltage input end to be converted into direct current voltage and pass through the direct current voltage output end, and the second alternating voltage output end is used for outputting alternating current voltage.

Optionally, the power conversion unit further includes a housing, at least two coupling plates are disposed in the housing, two ends of each coupling plate penetrate through the housing, one end of each coupling plate is the second AC voltage input end, the other end of each coupling plate is the second AC voltage output end, the AC/DC module is disposed in the housing and electrically connected to the coupling plates, and the DC voltage output end is electrically connected to the AC/DC module and exposed to the housing.

Optionally, a connecting rib is arranged between two adjacent connecting plates on the housing, a separation block is arranged between two adjacent first alternating-current voltage output ends on the circuit breaker body, an insertion groove is formed in the separation block, and the connecting rib is correspondingly inserted into the insertion groove.

Optionally, the circuit breaker still includes the baffle, the baffle overlap in the outside of first alternating voltage output end, just the one end of baffle with this body coupling of circuit breaker, the other end of baffle with the casing is connected.

Optionally, the housing includes a base and an upper cover that are covered with each other, the base is provided with a receiving groove for receiving the coupling plate, the receiving groove corresponds to the coupling plate one to one, and the AC/DC module is disposed between the coupling plate and the upper cover.

Optionally, the power conversion unit further includes a bottom plate disposed on an outer side surface of the base opposite to the upper cover.

Optionally, the voltage output by the dc voltage output terminal includes one or more of 5V, 12V and 24V.

Optionally, the direct-current voltage output end includes a plurality of two-core terminals, the two-core terminals are electrically connected to the AC/DC module, each of the two-core terminals is correspondingly provided with a status indicator light for displaying a status when the two-core terminal is connected to an external terminal, the status indicator light is electrically connected to the AC/DC module, and an indication end of the status indicator light is exposed to the housing.

Optionally, the power conversion unit further includes a switch-on indicator light, the switch-on indicator light is electrically connected to the AC/DC module, an indicating end of the switch-on indicator light is exposed to the housing, and the switch-on indicator light is used for indicating whether the power conversion unit is switched on with the circuit breaker body.

Optionally, the power conversion unit further includes a switch component, the switch component is configured to turn on a conversion function of the AC/DC module, the switch component is electrically connected to the AC/DC module, the switch component is correspondingly provided with a switch indicator light for indicating the switch component to be turned off or turned on, and an indication end of the switch indicator light is exposed to the housing.

Optionally, the circuit breaker body is provided with at least one dc voltage input end, and the dc voltage input end is electrically connected to the dc voltage output end.

The utility model has the advantages that: the utility model provides a circuit breaker, including circuit breaker body and power conversion unit, the circuit breaker body includes two at least first alternating voltage output ends, power conversion unit is including corresponding second alternating voltage input end and the AC/DC module of being connected with first alternating voltage output end is electrically conductive, in the time of the in-service use, the AC/DC module can turn into direct current voltage with the alternating voltage of second alternating voltage input end input, and export through the direct current voltage output end, realized getting alternating voltage from the circuit breaker body, and for the function that needs direct current voltage's smart machine power supply after the conversion of AC/DC module, use with two at least external loads that supply with the direct current voltage output end and be connected. Compared with the prior art that each load is provided with a corresponding AC/DC module, the method simplifies the assembly steps of the power conversion unit, saves the whole occupied space and reduces the manufacturing cost of the power grid equipment.

Drawings

Fig. 1 is a front view of a circuit breaker provided by an embodiment of the present invention;

fig. 2 is an exploded view of a power conversion unit provided by an embodiment of the present invention;

fig. 3 is an exploded view of the circuit breaker body and the power conversion unit provided in the embodiment of the present invention when they are not assembled;

fig. 4 is a schematic structural diagram of a dc voltage output end according to an embodiment of the present invention.

In the figure:

1. a circuit breaker body; 11. a separation block; 111. inserting grooves;

2. a power conversion unit; 21. a DC voltage output terminal; 211. a two-core terminal; 212. a status indicator light; 22. an AC/DC module; 23. a housing; 231. a base; 2311. a containing groove; 2312. a first connecting rib; 232. an upper cover; 2321. a second connecting rib; 24. a coupling plate; 25. a base plate; 26. turning on an indicator light; 27. a switch member; 28. switching on and off an indicator light;

3. and a baffle plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected", "connected" and "fixed" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

As shown in fig. 1 and fig. 2, the present embodiment provides a circuit breaker, which includes a circuit breaker body 1 and a power conversion unit 2, where the power conversion unit 2 is configured to convert an ac voltage output by the circuit breaker body 1 into a dc voltage to supply power to other intelligent devices.

Specifically, the circuit breaker comprises a circuit breaker body 1 and a power conversion unit 2, wherein the circuit breaker body 1 comprises at least two first alternating-current voltage input ends and at least two first alternating-current voltage output ends; the power conversion unit 2 includes a second AC voltage input terminal, a second AC voltage output terminal, a DC voltage output terminal 21, and an AC/DC module 22, where the second AC voltage input terminal is electrically connected to the first AC voltage output terminal, the AC/DC module 22 converts AC voltage input through the second AC voltage input terminal into DC voltage and outputs the DC voltage through the DC voltage output terminal 21, and the second AC voltage output terminal is used for outputting AC voltage.

The utility model provides a circuit breaker, including circuit breaker body 1 and power conversion unit 2, circuit breaker body 1 includes two at least first alternating voltage output ends, power conversion unit 2 is including corresponding second alternating voltage input end and the AC/DC module 22 of being connected with first alternating voltage output end is electrically conductive, in the time of the in-service use, AC/DC module 22 can turn into direct current voltage with the alternating current voltage of second alternating voltage input end input, and export through direct current voltage output 21, the alternating current voltage of getting from circuit breaker body 1 has been realized, and for the function that needs direct current voltage's smart machine power supply after the conversion of AC/DC module 22, use with two at least external loads that supply with direct current voltage output 21 and be connected. Compared with the existing method that each load is provided with the corresponding AC/DC module 22, the method simplifies the assembly steps of the power conversion unit 2, saves the whole occupied space and reduces the manufacturing cost of the power grid equipment.

Referring to fig. 1 to fig. 3, optionally, the power conversion unit 2 further includes a housing 23, at least two coupling plates 24 are disposed in the housing 23, two ends of the coupling plates 24 extend through the housing 23, one end of the coupling plate 24 is a second alternating voltage input end, the other end of the coupling plate 24 is a second alternating voltage output end, the AC/DC module 22 is disposed in the housing 23 and electrically connected to the coupling plate 24, and the direct voltage output end 21 is electrically connected to the AC/DC module 22 and exposed from the housing 23. Both ends of the connecting plate 24 penetrate through the shell 23, so that a second alternating voltage input end is conveniently and electrically connected with a first alternating voltage output end of the circuit breaker body 1, and an external load is also conveniently connected with the second alternating voltage output end; the AC/DC module 22 is arranged in the shell 23, and the shell 23 can protect the AC/DC module 22 from being influenced by external environment; the direct-current voltage output end 21 is exposed out of the shell 23, so that an external load can be conveniently and electrically connected with the direct-current voltage output end, and the operation convenience is improved.

Optionally, the circuit breaker further includes a baffle 3, the baffle 3 covers the outer side of the first ac voltage output end, one end of the baffle 3 is connected to the circuit breaker body 1, and the other end of the baffle 3 is connected to the housing 23. This baffle 3 can shelter from the line of walking between circuit breaker body 1 and the second alternating voltage input, improves the aesthetic property. Preferably, the baffle 3 is detachably connected with the upper cover 232; the baffle 3 is detachably connected with the breaker body 1. Illustratively, the baffle 3 is connected with the upper cover 232 or the circuit breaker body 1 through a screw. In other embodiments, the baffle 3 and the upper cover 232 or the circuit breaker body 1 may be connected by other connection methods such as snap-fit connection.

As shown in fig. 2 and 3, a connection rib is disposed between two adjacent coupling plates 24 on the housing 23, a separation block 11 is disposed between two adjacent first ac voltage output ends on the circuit breaker body 1, an insertion groove 111 is disposed on the separation block 11, and the connection rib is inserted into the insertion groove 111 correspondingly. Connecting ribs are arranged between every two adjacent connecting plates 24, and inserting grooves 111 corresponding to the connecting ribs are formed in every two separating blocks 11, so that the fixing stability between the connecting plates 24 and the circuit breaker body 1 can be effectively improved; the splicing structure of the connecting rib and the splicing groove 111 is easy to process, and the manufacturing cost is reduced. And secondly, the connecting ribs and the separation blocks 11 can also separate the adjacent connecting plates 24, and the input/output meets the electrical isolation requirement of more than or equal to 3000VAC, so that the wiring safety is ensured.

Specifically, the housing 23 includes a base 231 and an upper cover 232 which are mutually covered, the base 231 is provided with at least two accommodating grooves 2311 for accommodating the coupling plates 24, the accommodating grooves 2311 correspond to the coupling plates 24 one to one, and the AC/DC module 22 is disposed between the coupling plates 24 and the upper cover 232. The base 231 and the upper cover 232 are mutually covered, so that the assembly and disassembly are convenient; the coupling plate 24 is disposed in the receiving groove 2311 to prevent shaking thereof, thereby improving mounting stability. For example, during assembly, the coupling plate 24 may be first disposed in the accommodating groove 2311 of the base 231, the AC/DC module 22 may be disposed above the coupling plate 24, and the upper cover 232 may be finally covered on the base 231, so that the operation is simple.

In this embodiment, the splice bar includes first splice bar 2312 and second splice bar 2321, base 231 is located to first splice bar 2312, upper cover 232 is located to second splice bar 2321, back on upper cover 232 lock is on base 231, first splice bar 2312 and second splice bar 2321 are in same straight line, each first splice bar 2312 and second splice bar 2321 form a splice bar, splice bar and the setting of inserting groove 111 one-to-one, so that inserting groove 111 can be fixed base 231 and upper cover 232 simultaneously, and the stability is improved. Illustratively, the coupling plate 24 has three pieces, the housing 23 has two sets of connecting ribs, and the number of the insertion grooves 111 is two. In other embodiments, the number of the coupling plates 24 may be other than four, and the number of the insertion grooves 111 is three, and the like.

Preferably, the power conversion unit 2 further includes a bottom plate 25, the bottom plate 25 is disposed on an outer side surface of the base 231 opposite to the upper cover 232, the bottom plate 25 is an insulating member, and when the bottom plate 25 contacts the mounting surface, the circuit breaker is prevented from being electrically connected to other components, thereby improving the use safety.

In order to adapt to different loads, in the present embodiment, the voltage output by the dc voltage output terminal 21 includes one or more of 5V, 12V and 24V, so as to expand the application range of the circuit breaker.

Referring to fig. 4, optionally, the DC voltage output terminal 21 includes a plurality of two-core terminals 211, the two-core terminals 211 are electrically connected to the AC/DC module 22, each two-core terminal 211 is correspondingly provided with a status indicator lamp 212 for displaying a connection status of the two-core terminal 211 and the external terminal, the status indicator lamp 212 is electrically connected to the AC/DC module 22, and an indication end of the status indicator lamp 212 is exposed in the housing 23, so that a worker can visually know a connection status of the two-core terminal 211 and the external terminal in time. Illustratively, when an external terminal is inserted into a certain two-core terminal 211, the status indicator lamp 212 corresponding to the two-core terminal 211 is turned on; when the external terminal is not inserted into the two-core terminal 211, the status indicator lamp 212 corresponding to the two-core terminal 211 is on and off. Illustratively, the number of the two-core terminals 211 in the present embodiment is nine. In other embodiments, the number of the two-core terminals 211 may be other, such as ten, and the two-core terminals may be provided according to actual needs.

Optionally, the DC voltage output terminal 21 further includes a switch 27, the switch 27 is electrically connected to the AC/DC module 22, the switch 27 is correspondingly provided with a switch indicator 28 for indicating the switch 27 to be turned on or off, and an indication end of the switch indicator 28 is exposed from the housing 23. The switch 27 is used for starting the conversion function of the AC/DC module 22, and when the intelligent device is used, the on-off of the AC/DC module 22 and the connecting plate 24 can be controlled through the switch 27, so that the requirement of turning off a power supply is met when a load of the intelligent device is installed; the indication end of the switch indicator light 28 is exposed out of the housing 23, so that the working state of the AC/DC module 22 can be known in time by the staff, and the staff can make actions in time.

The direct-current voltage output end 21 further includes a switch-on indicator lamp 26, the switch-on indicator lamp 26 is electrically connected to the AC/DC module 22, the switch-on indicator lamp 26 is used for indicating whether the power conversion unit 2 is switched on with the circuit breaker body 1, and an indication end of the switch-on indicator lamp 26 is exposed in the housing 23. When the power conversion unit 2 is connected to the circuit breaker body 1, the on indicator lamp 26 is turned on; when the power conversion unit 2 is not connected to the circuit breaker body 1, the on indicator lamp 26 is turned on and off to assist the operator to know the connection state between the power conversion unit 2 and the circuit breaker body 1 in time.

Optionally, at least one dc voltage input terminal is disposed on the circuit breaker body 1, and the dc voltage input terminal is electrically connected to the dc voltage output terminal 21 to provide voltage support for the circuit breaker body 1.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A circuit breaker, comprising:

a circuit breaker body (1), said circuit breaker body (1) comprising at least two first alternating voltage input terminals and at least two first alternating voltage output terminals;

power conversion unit (2), power conversion unit (2) include second alternating voltage input end, second alternating voltage output end, direct current voltage output end (21) and AC/DC module (22), second alternating voltage input end with first alternating voltage output end corresponds electrically conductive connection, AC/DC module (22) make pass through the alternating voltage of second alternating voltage input end input changes into direct current voltage and passes through direct current voltage output end (21) are exported, second alternating voltage output end is used for exporting alternating voltage.

2. The circuit breaker according to claim 1, wherein the power conversion unit (2) further comprises a housing (23), at least two coupling plates (24) are disposed in the housing (23) side by side, both ends of the coupling plates (24) penetrate the housing (23), one end of the coupling plates (24) is the second AC voltage input end, the other end of the coupling plates (24) is the second AC voltage output end, the AC/DC module (22) is disposed in the housing (23) and electrically connected to the coupling plates (24), and the DC voltage output end (21) is electrically connected to the AC/DC module (22) and exposed to the housing (23).

3. The circuit breaker according to claim 2, wherein a connecting rib is disposed between two adjacent connecting plates (24) on the housing (23), a separating block (11) is disposed between two adjacent first ac voltage output ends on the circuit breaker body (1), an insertion groove (111) is disposed on the separating block (11), and the connecting rib is correspondingly inserted into the insertion groove (111).

4. The circuit breaker according to claim 2, characterized in that the circuit breaker further comprises a baffle (3), the baffle (3) covers the outer side of the first alternating voltage output end, one end of the baffle (3) is connected with the circuit breaker body (1), and the other end of the baffle (3) is connected with the housing (23).

5. The circuit breaker according to claim 2, wherein said housing (23) comprises a base (231) and an upper cover (232) which are mutually covered, said base (231) is provided with a receiving groove (2311) for receiving said tie plate (24), said receiving groove (2311) is in one-to-one correspondence with said tie plate (24), and said AC/DC module (22) is disposed between said tie plate (24) and said upper cover (232).

6. The circuit breaker according to claim 5, wherein the power conversion unit (2) further comprises a bottom plate (25), the bottom plate (25) being disposed on an outer side surface of the base (231) opposite to the upper cover (232).

7. The circuit breaker according to claim 2, wherein the DC voltage output terminal (21) comprises a plurality of two-core terminals (211), the two-core terminals (211) are electrically connected to the AC/DC module (22), each of the two-core terminals (211) is correspondingly provided with a status indicator lamp (212) for indicating a connection state of the two-core terminal (211) and an external terminal, the status indicator lamp (212) is electrically connected to the AC/DC module (22), and an indication end of the status indicator lamp (212) is exposed from the housing (23).

8. The circuit breaker according to claim 2, wherein the power conversion unit (2) further comprises a switch-on indicator lamp (26), the switch-on indicator lamp (26) is electrically connected with the AC/DC module (22), an indicating end of the switch-on indicator lamp (26) is exposed from the housing (23), and the switch-on indicator lamp (26) is used for indicating whether the power conversion unit (2) is connected with the circuit breaker body (1).

9. The circuit breaker according to claim 2, wherein the power conversion unit (2) further comprises a switch member (27), the switch member (27) is used for switching on the conversion function of the AC/DC module (22), the switch member (27) is electrically connected with the AC/DC module (22), the switch member (27) is correspondingly provided with a switch indicator lamp (28) for indicating the switch member (27) to be opened or closed, and an indicating end of the switch indicator lamp (28) is exposed from the housing (23).

10. The circuit breaker according to any of claims 1-9, wherein the voltage output by the dc voltage output (21) comprises one or more of 5V, 12V and 24V.

11. The circuit breaker according to any of the claims 1-9, characterized in that at least one direct voltage input is provided on the circuit breaker body (1), which direct voltage input is electrically connected to the direct voltage output (21).