CN219626574U

CN219626574U - Plug-in mechanism and residual current protection circuit breaker

Info

Publication number: CN219626574U
Application number: CN202223518373.7U
Authority: CN
Inventors: 万江华; 韩雨; 李伟; 甄岩; 陈文彬; 于华东; 李胜明; 李擘
Original assignee: Nanjing Hanyuan Technology Co ltd; Beijing Smartchip Microelectronics Technology Co Ltd
Current assignee: Nanjing Hanyuan Technology Co ltd; Beijing Smartchip Microelectronics Technology Co Ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-09-01
Anticipated expiration: 2032-12-28

Abstract

The utility model discloses a plug-in mechanism and a residual current protection circuit breaker, comprising a first module, wherein the first module comprises a female head arranged on the first module, and a first terminal is arranged in the female head; the second module is provided with a male head, the male head can be inserted on the female head, a second terminal is arranged in the male head, and the first terminal and the second terminal can be mutually contacted and form electric connection. The circuit breaker box body is provided with a first module; the driving mechanism comprises a second module, and further comprises a transformer, a power supply, an MCU and a tripping unit which are electrically connected. According to the utility model, the chip is integrated on the second module, the second module is spliced on the first module, so that the first terminal is contacted with the second terminal, the circuit breaker works, overcurrent and short-circuit faults generated in the circuit are cut off and distributed, and when the circuit breaker is damaged, the second module is directly detached for maintenance, and the whole circuit breaker is not required to be replaced and installed.

Description

Plug-in mechanism and residual current protection circuit breaker

Technical Field

The utility model relates to the technical field of circuit breakers, in particular to a plugging mechanism and a residual current protection circuit breaker.

Background

The residual current protection circuit breaker is one of important electrical equipment in a low-voltage distribution system, is a switching electric appliance for cutting off and distributing overcurrent and short-circuit faults generated in a circuit, and has the action principle that an arc is extinguished by utilizing oxidation reaction of the arc on the surface of a metal conductor.

With the continuous increase of the power grid capacity of the low-voltage distribution system in China, the requirements on the technical indexes of the circuit breaker are also higher and higher. The chip inside the existing breaker is of an integrated structure, so that when the chip inside the breaker breaks down, the maintenance is difficult, the whole breaker needs to be replaced, and the cost is high.

Disclosure of Invention

This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the utility model and in the title of the utility model, which may not be used to limit the scope of the utility model.

The present utility model has been made in view of the above and/or problems occurring in the prior art.

Therefore, the technical problems to be solved by the utility model are as follows: the inside chip of current circuit breaker all is an organic whole structure, and when inside chip breaks down, the maintenance difficulty needs to be changed whole circuit breaker, and is with high costs.

In order to solve the technical problems, the utility model provides the following technical scheme: the plug-in mechanism comprises a first module and a second module, wherein the first module comprises a female head arranged therein, and a first terminal is arranged in the female head; the second module is provided with a male head, the male head can be inserted on the female head, a second terminal is arranged in the male head, and the first terminal and the second terminal can be mutually contacted and form electric connection.

As a preferred embodiment of the plug-in connection according to the utility model, the plug-in connection comprises: the first module comprises a shell, a slot is formed in the shell, the female head is located at the bottom of the slot, and the second module is inserted into the slot.

As a preferred embodiment of the plug-in connection according to the utility model, the plug-in connection comprises: the second terminals are a plurality of pins, one ends of the pins are fixedly connected with corresponding pins on the chip inside the second module, and the other ends of the pins penetrate through the second module.

As a preferred embodiment of the plug-in connection according to the utility model, the plug-in connection comprises: the first terminal is a plurality of contacts, one end of each contact is fixedly connected with a corresponding pin on the chip inside the first module, and the other end of each contact penetrates through the first module.

As a preferred embodiment of the plug-in connection according to the utility model, the plug-in connection comprises: the first terminal comprises a first plug block, a jack is formed in the first plug block, and the contact is located at the bottom of the jack.

As a preferred embodiment of the plug-in connection according to the utility model, the plug-in connection comprises: and a fork-shaped clamping block is arranged in the jack, and the contact is the fork-shaped clamping block.

As a preferred embodiment of the plug-in connection according to the utility model, the plug-in connection comprises: the jack is internally provided with a rectangular clamping block, the contact is the rectangular clamping block, the rectangular clamping block comprises clamping pieces which are oppositely arranged, and each clamping piece comprises a spring piece arranged at the top end and a mounting seat arranged at the bottom end.

As a preferred embodiment of the plug-in connection according to the utility model, the plug-in connection comprises: and the outer side of the male head is fixedly connected with a protection block.

The beneficial effects of the utility model are as follows: according to the utility model, the chip is integrated on the second module, and the second module is spliced on the first module, so that the first terminal is contacted with the second terminal, the circuit breaker works, and when the inside of the circuit breaker is damaged, the second module is directly detached for maintenance, and the whole circuit breaker does not need to be replaced and installed.

Another technical problem to be solved by the present utility model is to provide a residual current protection circuit breaker, which aims to cut off and distribute the overcurrent and short-circuit faults generated in the circuit.

In order to solve the technical problems, the utility model also provides the following technical scheme: a residual current protection circuit breaker comprising the plug-in mechanism; the circuit breaker comprises a circuit breaker box body, wherein the first module is positioned on the circuit breaker box body; the driving mechanism comprises a second module, and further comprises a transformer, a power supply, an MCU and a tripping unit which are electrically connected.

As a preferable embodiment of the residual current protection circuit breaker according to the present utility model, wherein: the driving mechanism comprises a weak current input/output signal terminal, a strong current input voltage terminal, a strong current output voltage terminal and a device interface, wherein the interfaces of the weak current input/output signal terminal, the strong current input voltage terminal, the strong current output voltage terminal and the device interface are the second terminal.

The utility model has the following beneficial effects: the utility model cuts off and distributes the overcurrent and short-circuit faults generated in the circuit by plugging the second module into the circuit breaker housing for operation.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:

fig. 1 is a schematic diagram of the overall structure of the plugging mechanism of the present utility model.

Fig. 2 is a first module structure diagram of the plugging mechanism of the present utility model.

Fig. 3 is a second block diagram of the plugging mechanism according to the present utility model.

Fig. 4 is a diagram showing the internal structure of a second module of the plugging mechanism according to the present utility model.

Fig. 5 is a first block structure diagram of the plugging mechanism of the present utility model.

Fig. 6 is a block diagram of a fork-shaped clamp block of the plugging mechanism of the present utility model.

FIG. 7 is a block diagram of a rectangular clamp of the plugging mechanism of the present utility model.

Fig. 8 is an overall structural view of the residual current protection circuit breaker of the present utility model.

Fig. 9 is a flow chart of a driving mechanism of the residual current protection circuit breaker according to the present utility model.

Fig. 10 is a structural view of a driving mechanism of the plugging mechanism of the present utility model.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.

Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1 to 3, for a first embodiment of the present utility model, there is provided a plugging mechanism including a first module 100 and a second module 200, wherein the first module 100 is used for being fixed to a wall or the like and the second module 200 is installed, and the second module 200 is used for driving the first module 100 to operate.

Specifically, the first module 100 includes a female head 101 disposed thereon, and the female head 101 has a first terminal 101a disposed therein;

the second module 200 is provided with a male head 201, the male head 201 can be plugged into the female head 101, a second terminal 201a is arranged in the male head 201, and the first terminal 101a and the second terminal 201a can be contacted with each other and form electric connection.

In use, the male head 201 is plugged onto the female head 101, so that the second terminal 201a and the first terminal 101a therein can be communicated. The first terminal 101a and the second terminal 201a are connected to the chip inside the first module 100 or the second module 200, respectively, and the second terminal 201a contacts the first terminal 101a to communicate the chip inside the first module 100 or the second module 200.

In this embodiment, the first module 100 is a breaker housing, which is mounted on a wall and is connected with a power supply unit, the second module 200 is plugged into the first module 100 to energize the power supply unit, the second module 200 is provided with an equipment access port, and the equipment is connected to the equipment access port, so that the switching device for cutting off and distributing the overcurrent and short-circuit faults generated in the circuit can be realized.

When the breaker fails, only the second module 200 is required to be pulled out for maintenance, and the whole breaker is not required to be disassembled and reinstalled, so that the workload is greatly reduced.

Example 2

Referring to fig. 1 to 8, this embodiment is based on the previous embodiment, which is a second embodiment of the present utility model.

The first module 100 includes a housing 102, a socket 102a is disposed on the housing 102, a female connector 101 is located at the bottom of the socket 102a, and the second module 200 is inserted into the socket 102 a.

The second terminal 201a is a plurality of pins 201a-1, one end of each pin 201a-1 is fixedly connected with a corresponding pin on the chip inside the second module 200, and the other end penetrates through the second module 200.

The first terminal 101a is a plurality of contacts 101a-2, one end of the contacts 101a-2 is fixedly connected with corresponding pins on a chip inside the first module 100, and the other end penetrates through the first module 100.

Pins 201a-1 are leads of corresponding pins of the chip inside the second module 200, and contact with corresponding contacts 101a-2 to operate the circuits inside the first module 100 or the second module 200.

The stitch 201a-1 is a metal needle in this embodiment.

The first terminal 101a includes a first plug 101a-1, a jack 101a-1a is formed on the first plug 101a-1, and a contact 101a-2 is located at the bottom of the jack 101a-1 a. By arranging the first plug 101a-1 and the jack 101a-1a, when the male head 201 and the female head 101 are plugged, the pin 201a-1 is inserted into the corresponding jack 101a-1a and then contacted with the contact 101a-2, so that the stability of connection is improved.

Fork-shaped clamping blocks 101a-1b are arranged in the insertion holes 101a-1a, and the contacts 101a-2 are fork-shaped clamping blocks 101a-1b.

The structure of the fork-shaped clamping blocks 101a-1b is shown in fig. 7, and the upper ends of the fork-shaped clamping blocks 101a-1b have a certain elasticity so as to clamp the pins 201a-1, so that the connection between the first module 100 and the second module 200 is more stable.

Rectangular clamping blocks 101a-1c are arranged in the insertion holes 101a-1a, and the contacts 101a-2 are rectangular clamping blocks 101a-1c.

Preferably, the clamping blocks can also adopt rectangular clamping blocks 101a-1c as shown in fig. 8, and the rectangular clamping blocks 101a-1c can clamp two pins 201a-1 arranged side by side, so as to increase the connection stability of the first module 100 and the second module 200.

The rectangular clamping block 101a-1c comprises clamping pieces 101a-1c1 which are oppositely arranged, wherein the clamping pieces 101a-1c1 comprise a spring piece A arranged at the top end and a mounting seat B arranged at the bottom end. The clamping piece 101a-1c1 is used for positioning the pin 201a-1, the elastic sheet A is used for clamping the pin 201a-1 by using elasticity, and the mounting seat B is used for fixing the clamping piece 101a-1c1. The outer side of the male head 201 is fixedly connected with a protection block 202. The protection block 202 is used for fixedly connecting the male 201 to the second module 200.

Example 3

Referring to fig. 1 to 10, a third embodiment of the present utility model is based on the first two embodiments.

A residual current protection circuit breaker comprises a plug-in mechanism; also included is a circuit breaker housing 300, the first module 100 being located on the circuit breaker housing 300. The circuit breaker case 300 is used to mount the driving mechanism 400, is connected to a fixture such as a wall, and supplies power to the driving mechanism 400.

The driving mechanism 400 includes the second module 200, and further includes a transformer, a power supply, an MCU, and a trip unit, which are electrically connected.

The driving mechanism 400 includes a weak current input/output signal terminal 401, a strong current input voltage terminal 402, a strong current output voltage terminal 403, and a device interface 404, and the interfaces of the weak current input/output signal terminal 401, the strong current input voltage terminal 402, and the strong current output voltage terminal 403 are the second terminal 201a.

Specifically, referring to fig. 9, the transformer: providing an analog signal for current sampling, and providing self-generated electricity for a power supply when no voltage exists; and (3) a power supply: converting an alternating current power supply into a system available power supply to supply power to the MCU and the tripping unit; MCU: the analog signals are collected and converted into electric quantity, the state signals are collected, faults are identified, a fault protection function is achieved through the tripping unit, and the specific model of the MCU is in the prior art, such as TSSOP-20.

The alternating current 220V high voltage is input through the first terminal 101a through the strong current input voltage terminal 201a-3, converted into direct current voltage required by the circuit breaker through the power module, meanwhile, divided by the voltage dividing resistor, transmitted to the main control board through the signal pin array for voltage sampling, the current transformer signal is transmitted to the main control board through the terminal for providing analog signals for current sampling, the current voltage analog signal is transmitted to the main control unit after being amplified by the amplifying unit, and converted into electric quantity by the main control unit.

Referring to fig. 1 to 10, in use, the second module 200 is inserted into the slot 102a on the housing 102 of the first module 100, with each pin 201a-1 going deep into the jack 101a-1a, snapped into the fork-shaped clamp block 101a-1b or the rectangular clamp block 101a-1c, and brought into contact with the contact 101a-2 to conduct the circuit in the second module 200 and the first module 100 to operate the circuit breaker, and to cut off and distribute the overcurrent and short-circuit faults generated in the circuit.

When the breaker fails, the driving mechanism 400 is directly detached for maintenance, so that the maintenance is convenient and quick.

It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.

Claims

1. A plug-in mechanism, characterized in that: comprising

A first module (100) comprising a female (101) arranged therein, the female (101) having a first terminal (101 a) arranged therein;

the second module (200) is provided with a male head (201), the male head (201) can be inserted into the female head (101), a second terminal (201 a) is arranged in the male head (201), and the first terminal (101 a) and the second terminal (201 a) can be mutually contacted and form electric connection.

2. The plugging mechanism according to claim 1, wherein: the first module (100) comprises a shell (102), a slot (102 a) is formed in the shell (102), the female head (101) is located at the bottom of the slot (102 a), and the second module (200) is inserted into the slot (102 a).

3. The plugging mechanism according to claim 2, wherein: the second terminal (201 a) is a plurality of pins (201 a-1), one end of each pin (201 a-1) is fixedly connected with a corresponding pin on the chip inside the second module (200), and the other end of each pin penetrates through the second module (200).

4. A plugging mechanism according to claim 3, wherein: the first terminal (101 a) is a plurality of contacts (101 a-2), one end of each contact (101 a-2) is fixedly connected with a corresponding pin on a chip inside the first module (100), and the other end of each contact penetrates through the first module (100).

5. The plugging mechanism according to claim 4, wherein: the first terminal (101 a) comprises a first plug block (101 a-1), a jack (101 a-1 a) is formed in the first plug block (101 a-1), and the contact (101 a-2) is located at the bottom of the jack (101 a-1 a).

6. The plugging mechanism according to claim 5, wherein: fork-shaped clamping blocks (101 a-1 b) are arranged in the insertion holes (101 a-1 a), and the contacts (101 a-2) are the fork-shaped clamping blocks (101 a-1 b).

7. The plugging mechanism according to claim 5, wherein: rectangular clamping blocks (101 a-1 c) are arranged in the insertion holes (101 a-1 a), the contacts (101 a-2) are the rectangular clamping blocks (101 a-1 c), the rectangular clamping blocks (101 a-1 c) comprise clamping pieces (101 a-1c 1) which are oppositely arranged, and the clamping pieces (101 a-1c 1) comprise elastic pieces (A) arranged at the top ends and mounting seats (B) arranged at the bottom ends.

8. The plugging mechanism according to any one of claims 1 to 7, wherein: and a protection block (202) is fixedly connected to the outer side of the male head (201).

9. A residual current protection circuit breaker, characterized by: comprising a plug-in mechanism according to any one of claims 1 to 8; also included is a method of manufacturing a semiconductor device,

a circuit breaker housing (300), the first module (100) being located on the circuit breaker housing (300);

the driving mechanism (400) comprises a second module (200), and further comprises a mutual inductor, a power supply, an MCU and a tripping unit which are electrically connected.

10. The residual current protection circuit breaker according to claim 9, characterized in that: the driving mechanism (400) comprises a weak current input/output signal terminal (401), a strong current input voltage terminal (402), a strong current output voltage terminal (403) and a device interface (404), wherein the interfaces of the weak current input/output signal terminal (401), the strong current input voltage terminal (402) and the strong current output voltage terminal (403) are the second terminal (201 a).