CN218386778U

CN218386778U - Protective device

Info

Publication number: CN218386778U
Application number: CN202221743621.5U
Authority: CN
Inventors: 雷广; 葛伟骏; 周长青; 谢文萱; 王凯
Original assignee: Shanghai Chint Intelligent Technology Co Ltd
Current assignee: Shanghai Chint Intelligent Technology Co Ltd
Priority date: 2022-07-07
Filing date: 2022-07-07
Publication date: 2023-01-24
Anticipated expiration: 2032-07-07

Abstract

The utility model provides a protector, its includes main control circuit board and protection component, protection component includes relay circuit board and many relays, the control pin of many relays is connected with the relay circuit board respectively, the relay circuit board pass through control signal line with main control circuit board connects, and a plurality of incoming wire terminals and a plurality of leading-out terminal of protector are connected with the relay binding post of many relays through main current return wire respectively, a plurality of incoming wire terminals with connect through the incoming wire signal line between the main control circuit board, need not be connected many relays with main control circuit board respectively, have the wiring convenient and simple characteristics of assembly.

Description

Protective device

Technical Field

The utility model relates to a low-voltage apparatus field, concretely relates to protector.

Background

The overvoltage and undervoltage protector is a common electrical appliance in the field of electrical appliances, is often used in a circuit in cooperation with a circuit breaker, and is used in distribution lines of families and markets as protection of overvoltage, undervoltage, phase failure and zero line failure.

However, the overvoltage and undervoltage protector of the three-phase four-wire system generally comprises at least a plurality of relays, a shell, a circuit board, a wiring terminal and the like, and the plurality of relays, the incoming line signal wires and the circuit board are complex in wiring, high in assembly difficulty and low in assembly efficiency.

Disclosure of Invention

An object of the utility model is to overcome prior art's defect, provide a protector.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a protector, its includes main control circuit board and protection component, protection component includes relay circuit board and many relays, the control pin of many relays is connected with the relay circuit board respectively, the relay circuit board pass through control signal line with main control circuit board is connected, and a plurality of incoming line terminals and a plurality of outgoing line terminal of protector are connected with the relay binding post of many relays through main current circuit wire respectively, a plurality of incoming line terminals with connect through the incoming line signal line between the main control circuit board.

Preferably, the device also comprises a shell, the main control circuit board and the protection assembly are respectively arranged in the shell, and a partition board is arranged in the shell and is in limit fit with the main control circuit board and the protection assembly respectively.

Preferably, the plurality of relays are arranged between the relay circuit board and the main control circuit board.

Preferably, the main current loop lead comprises a lead section and connecting sections respectively arranged at two ends of the lead section, one of the connecting sections is connected with the incoming line terminal, the other connecting section is connected with the corresponding relay, the lead section and the relay are arranged at intervals, and the relay circuit board is arranged between the lead section and the relay.

Preferably, the partition plate comprises a bottom plate positioned between the plurality of relays and the main control circuit board.

Preferably, the partition plate comprises two side plates which are arranged oppositely, and a bottom plate and a plurality of baffle plates which are connected between the two side plates, and the baffle plates can be inserted between two adjacent relays.

Preferably, the partition plate is provided with a clamping groove, and the incoming line signal line is fixed in the clamping groove.

Preferably, at least one baffle is connected between one ends of the two side plates, and an opening for avoiding the shell is formed in one end, far away from the baffle, of each of the two side plates.

Preferably, the bottom plate is equipped with two splint of at least a set of relative setting in the one side of keeping away from the curb plate, is equipped with the jack catch that sets up with the bottom plate interval on splint, the control scheme board can be inserted two splint inboards and the spacing cooperation of jack catch that set up relatively of at least a set of.

Preferably, the circuit also comprises an N pole assembly, and the N pole assembly is respectively connected with the N pole inlet terminal and the N pole outlet terminal to form an N pole loop.

In the protector of the embodiment, the main control circuit board is connected with the relay circuit board through the control signal line, and can control a plurality of relays through the relay circuit board, when overvoltage or undervoltage circuit faults occur in a multi-phase main current loop, the main control circuit board simultaneously transmits control signals to the plurality of relays through the signal line, so that the plurality of relays are simultaneously tripped, and the multi-phase main current loop is disconnected; when the voltage in the multiphase main current loop returns to normal, the main control circuit board can control the plurality of relays to respectively contact the multiphase main current loop through the relay circuit board, the plurality of relays do not need to be respectively connected with the main control circuit board, and the multi-phase relay circuit has the characteristics of convenience in wiring and simplicity in assembly.

In addition, the relay circuit board and the main control circuit board are separated through a plurality of relays, so that interference can be reduced, and the electrical safety performance is improved.

Drawings

FIG. 1 is an exploded view of an embodiment of an under-voltage protector;

FIG. 2 is a schematic top side view of the protective assembly;

FIG. 3 is a schematic view of the bottom side of the protective assembly;

FIG. 4 is a schematic view of the top side structure of the separator plate;

FIG. 5 is a plan view from above of FIG. 4;

FIG. 6 is a schematic view of the bottom side structure of the partition;

fig. 7 is a plan view from above in fig. 6.

Detailed Description

The following embodiments are provided in conjunction with the accompanying drawings to further describe the specific implementation of the overvoltage/undervoltage protector of the present invention. The over-voltage and under-voltage protector of the utility model is not limited to the description of the following embodiments.

As shown in fig. 1-3, the protector of this embodiment is an overvoltage/undervoltage protector, and the overvoltage/undervoltage protector includes a main control circuit board 5 and a protection component, the protection component includes a relay circuit board 4 and a plurality of relays 11, control pins of the plurality of relays 11 are respectively connected with the relay circuit board 4, the relay circuit board 4 is connected with the main control circuit board 5 through a control signal line 7, a plurality of incoming line terminals 9 and a plurality of outgoing line terminals 10 of the overvoltage/undervoltage protector are respectively connected with relay connection terminals of the plurality of relays 11 through main current circuit wires 8, so that the plurality of relays 11 are respectively connected to a multiphase main current circuit, and the plurality of incoming line terminals 9 are connected with the main control circuit board 5 through incoming line signal lines 111.

In the protector of the embodiment, the main control circuit board 5 is connected with the relay circuit board 4 through the control signal line 7, the relay circuit board 4 controls the plurality of relays 11, and when overvoltage or undervoltage circuit faults occur in a multi-phase main current loop, the main control circuit board 5 can transmit control signals to the plurality of relays 11 through the signal line at the same time, so that the plurality of relays 11 are simultaneously tripped, and the multi-phase main current loop is disconnected; when the voltage in the multiphase main current loop returns to normal, the main control circuit board 5 can control the plurality of relays 11 to respectively contact the multiphase main current loop through the relay circuit board 4, the plurality of relays 11 do not need to be respectively connected with the main control circuit board 5, and the multi-phase relay circuit has the characteristics of convenience in wiring and simplicity in assembly.

As shown in fig. 1, the overvoltage and undervoltage protector of the embodiment further comprises a casing composed of a base 1 and a top cover 3, the main control circuit board 5 and the protection component are respectively arranged in the casing, a partition board 2 is arranged in the casing, and the partition board 2 is in limit fit with the main control circuit board 5 and the protection component respectively.

As shown in fig. 1 to 3, the plurality of relays 11 are respectively disposed between the relay circuit board 4 and the main control circuit board 5, the partition plate 2 includes a bottom plate 24 (see fig. 4 to 7) disposed between the plurality of relays 11 and the main control circuit board 5, the partition plate 2 is fixed to the base 1, and the relay circuit board 4 and the main control circuit board 5 are separated by the plurality of relays 11, so that interference can be reduced, and electrical safety performance can be improved.

As shown in fig. 3, two terminals of the relay 11 are connected to the inlet terminal 9 and the outlet terminal 10 through two main current circuit wires 8, respectively, and the relay board 4 is disposed between the relay 11 and the main current circuit wire 8 connected to the inlet terminal 9. Main current loop wire 8 includes wire section 81 and sets up the linkage segment 82 at wire section 81 both ends respectively, and one of them linkage segment 82 is connected with incoming line terminal 9, and wherein another linkage segment 82 is connected with corresponding relay 11, wire section 81 sets up with relay 11 interval, relay circuit board 4 sets up between wire section 81 and the relay 11, can effectively utilize current undervoltage protection ware's space, avoids relay circuit board 4 to increase undervoltage protection ware's volume.

As shown in fig. 3, an N-pole assembly 6,N is further disposed in the housing, and the N-pole assembly 6 is respectively connected to the N-pole incoming terminal and the N-pole outgoing terminal to form an N-pole loop.

As shown in fig. 4 to 7, the partition plate 2 includes two side plates 23 disposed opposite to each other, and a bottom plate 24 and a plurality of baffle plates 21 connected between the two side plates, and the baffle plates 21 can be inserted between two adjacent relays 11, and the bottom plate 24 is located between the relays 11 and the control circuit board 5, so that the insulation can be improved by the bottom plate 24 and the baffle plates 21.

Further, at least one baffle 21 is connected between one ends of the two side plates 23, and an opening 230 for avoiding the shell is arranged at one end of the two side plates 23 far away from the baffle 21. As shown in fig. 4, the present embodiment is provided with three baffle plates 21, wherein one baffle plate 21 is connected between the top ends of the two side plates 23, wherein two baffle plates 21 are connected between the middle portions of the two side plates 23, and the opening 230 for avoiding the housing is provided between the bottom ends of the two side plates 23.

As shown in fig. 6-7, a clamping groove 22 is formed in the outer side of the side plate 23 of the partition board 2, and the incoming line signal line 111 is fixed in the clamping groove 22, so that the installation is convenient, the installation efficiency is high, the size can be reduced, and the minimum width of the under-voltage protector is 72mm.

Further, bottom plate 24 is equipped with two splint 25 of at least a set of relative setting in the one side of keeping away from curb plate 23, is equipped with the jack catch that sets up with bottom plate 24 interval on splint 25, control circuit board 5 can be inserted two splint 25 inboards of at least a set of relative setting to it is spacing on baffle 21 by the jack catch.

Further, a plurality of through holes are formed in the bottom plate 24, three through holes are formed in the embodiment, the three through holes are respectively a first through hole 271, a second through hole 272 and a third through hole 273, the bottom plate is provided with a fixing column 28 for supporting the circuit board, and a supporting plate 29 which is in limit fit with the base 1 is arranged on the outer side of the side plate.

It should be noted that, in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship that is usually placed when used, and are only for convenience of description, but do not indicate that the device or element that is referred to must have a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish one description from another, and are not to be construed as indicating relative importance.

The foregoing is a more detailed description of the present invention, taken in conjunction with specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments thereof. To the utility model discloses to the ordinary skilled person in technical field's the prerequisite that does not deviate from the utility model discloses under the design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. A protector, characterized by: including main control circuit board (5) and protection component, protection component includes relay circuit board (4) and many relays (11), the control pin of many relays (11) is connected with relay circuit board (4) respectively, relay circuit board (4) through control signal line (7) with main control circuit board (5) are connected, a plurality of incoming wire terminal (9) and a plurality of outgoing wire terminal (10) of protector are connected with the relay binding post of many relays (11) through main current return circuit wire (8) respectively, a plurality of incoming wire terminal (9) with connect through incoming wire signal line (111) between main control circuit board (5).

2. The protector of claim 1, wherein: still include the casing, main control circuit board (5) and protection component set up respectively in the casing, are equipped with baffle (2) in the casing, baffle (2) with main control circuit board (5) and protection component are spacing cooperation respectively.

3. The protector of claim 1, wherein: the relays (11) are arranged between the relay circuit board (4) and the main control circuit board (5).

4. The protector of claim 1, wherein: main current return circuit wire (8) include wire section (81) and set up linkage segment (82) at wire section (81) both ends respectively, and wherein one linkage segment (82) is connected with incoming line terminal (9), and wherein another linkage segment (82) is connected with corresponding relay (11), wire section (81) and relay (11) interval set up, relay circuit board (4) set up between wire section (81) and relay (11).

5. The protector of claim 2, wherein: the partition plate (2) comprises a bottom plate (24) positioned between the relays (11) and the main control circuit board (5).

6. The protector of claim 2, wherein: the partition plate (2) comprises two opposite side plates (23), a bottom plate (24) connected between the two side plates and a plurality of baffle plates (21), and the baffle plates (21) can be inserted between two adjacent relays (11).

7. The protector of claim 2, wherein: baffle (2) are equipped with draw-in groove (22), inlet wire signal line (111) are fixed in draw-in groove (22).

8. The protector of claim 6, wherein: at least one baffle (21) is connected between one ends of the two side plates (23), and an opening (230) for avoiding the shell is formed in one end, far away from the baffle (21), of the two side plates (23).

9. The protector of claim 6, wherein: bottom plate (24) are equipped with two splint (25) of at least a set of relative setting in the one side of keeping away from curb plate (23), are equipped with the jack catch that sets up with bottom plate (24) interval on splint (25), control circuit board (5) can be inserted two splint (25) inboards and the spacing cooperation of jack catch that set up at least a set of relatively.

10. The protector of claim 1, wherein: the N pole component (6) is connected with the N pole wire inlet terminal and the N pole wire outlet terminal respectively to form an N pole loop.