CN213920679U

CN213920679U - High-voltage loop interlocking structure

Info

Publication number: CN213920679U
Application number: CN202022505584.1U
Authority: CN
Inventors: 肖轲; 汪国梁; 朱宏; 王志伟; 王随亚; 史汝海; 朱恺
Original assignee: Ningbo Junsheng New Energy Automotive Technology Co ltd
Current assignee: Ningbo Junsheng New Energy Automotive Technology Co ltd
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-08-10
Anticipated expiration: 2030-11-03

Abstract

The utility model discloses a high-voltage loop interlocking structure relates to electric automobile high voltage distribution box technical field, including insulation board, micro-gap switch, low pressure plug-in components and high-pressure plug-in components electricity are connected in the insulation board, and micro-gap switch, low pressure plug-in components and high-pressure plug-in components distribute in different positions on the insulation board, are equipped with the PCB board on the insulation board, and the PCB board is connected through low pressure pencil and micro-gap switch, low pressure plug-in components and high-pressure plug-in components electricity, is equipped with the limit structure of looks adaptation on insulation board and the PCB board. Compared with the prior art, the method has the following beneficial effects: (1) simple structure, easy dismounting makes the production assembling process more high-efficient convenient. (2) All low-voltage wire harnesses are integrated, wiring layout is simplified, and maintenance and arrangement are facilitated.

Description

High-voltage loop interlocking structure

Technical Field

The utility model relates to an electric automobile high voltage distribution box technical field, concretely relates to high-voltage loop interlocking structure.

Background

In order to avoid the situation that the high-voltage plug connector on the PDU is in virtual connection or parts still have high voltage after the box cover is opened, a high-voltage loop interlocking structure is designed in the PDU. The high-voltage loop uses a power battery pack as a power supply, and the low-voltage loop also needs a power supply for detection, so that a low-voltage signal is transmitted along the closed low-voltage loop. Once the low-voltage signal is interrupted, the high-voltage connector is indicated to be loosened or separated. The high-voltage circuit interlocking structure in the PDU passes through the low-voltage plug-in unit, the microswitch and the high-voltage plug-in units, and due to space limitation and dispersed positions of the plug-in units, the cable positioning and assembling difficulty can be caused by a method of sequentially and directly connecting the low-voltage lines in series, and the cost can be increased if cable positioning parts or structures are added.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

Aiming at the technical problems that the cable is difficult to position and assemble, and the cost is increased if cable positioning parts or structures are added, the utility model provides a high-voltage loop interlocking structure, which is characterized in that a plurality of groups of low-voltage wires are all inserted on a PCB to form a series circuit, the PCB is fixed on an insulating board, and meanwhile, no mistake proofing requirement is required on the inserting position of the low-voltage wire harness; the connecting structure is low in design cost, simplifies the layout of the interlocking wire harnesses, and enables the production and assembly processes to be efficient and convenient.

2. Technical scheme

In order to solve the above problem, the utility model provides a technical scheme does:

the utility model provides a high pressure return circuit interlocking structure, includes insulation board, micro-gap switch, low pressure plug-in components and high-pressure plug-in components, and micro-gap switch, low pressure plug-in components and high-pressure plug-in components electricity are connected in the insulation board, and micro-gap switch, low pressure plug-in components and high-pressure plug-in components distribute in the different positions on the insulation board, are equipped with the PCB board on the insulation board, and the PCB board passes through the low pressure pencil and is connected with micro-gap switch, low pressure plug-in components and high-pressure plug-in components electricity, is equipped with the limit structure of looks adaptation on insulation board and the PCB board. The utility model discloses a constitute a series circuit and come all low pressure pencil of integration on pegging graft a circuit board with a plurality of groups low-voltage line is whole, do not have the mistake proofing requirement to low pressure pencil grafting position simultaneously, made things convenient for the installation to peg graft. The low-voltage plug-in transmits low-voltage signals, the high-voltage plug-in transmits high-voltage signals, and the micro switch is used for controlling the circuit. All parts are connected to the PCB board, make things convenient for accomodating of pencil, save inner space. The PCB board can be dismantled with the insulation board and be connected, makes things convenient for the dismouting.

Optionally, the limiting structure comprises a buckle and a cylinder on the insulating plate and a round hole on the PCB, and the cylinder is matched with the round hole. The buckle is located the one end junction of insulation board and PCB board, can buckle when the PCB board installation back, prevents that the PCB board from droing. The round hole is matched with the cylinder and used for limiting the PCB and facilitating installation and positioning.

Optionally, the top of the buckle is of an inclined plane structure, the root of the buckle is fixedly connected to the insulating plate, and the upper half part of the buckle has elasticity. The top of the fastener is of an inclined surface structure, so that the fastener can horizontally move when the PCB is pressed down, and the PCB is pressed into a reserved clamping groove of the insulating plate by the position of the fastener; when the PCB is dismounted, the buckle is pressed aside, and the PCB can be simply and conveniently taken down.

Optionally, the bottom surface of the clamping groove is of a hollow structure. The clamping groove bottom surface of fretwork can weight reduction to when dismantling the PCB board, conveniently press down the PCB board from the back and lift the PCB board off from the insulation board.

Optionally, a wire casing for accommodating the low-voltage wire harness is arranged at the edge of the insulating plate. The wire casing at the edge of the insulating plate can accommodate low-voltage wire harnesses, so that the internal space is neat and orderly, and the layout of the interlocked wire harnesses is simplified.

Optionally, a socket for electrical connection is arranged on the PCB, and the socket is in a series structure. The socket is used for being electrically connected with the joint of the low-voltage wiring harness, and the socket in the series structure enables the low-voltage wiring harness to be connected in a staggered mode.

Optionally, the edge of the PCB is provided with a fillet structure. The fillet structure of PCB board is used for conveniently pressing the PCB board into the insulation board, and the fillet structure has a buffering when making the edge contact, can protect staff's hand to avoid the fish tail again.

Optionally, the insulating plate is of an integrally formed structure. The integrated into one piece structure can improve the overall structure intensity of insulation board.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

(1) the embodiment of the application provides a high-pressure loop interlocking structure, simple structure, easy dismounting makes production assembling process more high-efficient convenient.

(2) The high-voltage circuit interlocking structure provided by the embodiment of the application integrates all low-voltage wire harnesses, simplifies the wiring layout and is convenient to maintain and arrange.

Drawings

Fig. 1 is a schematic structural diagram of a high-voltage circuit interlocking structure according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an insulation board slot of a high-voltage loop interlocking structure according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a PCB board with a high-voltage circuit interlocking structure according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a PCB board of a high-voltage circuit interlocking structure according to an embodiment of the present invention during installation;

fig. 5 is a top view of a PCB board of a high-voltage circuit interlock structure according to an embodiment of the present invention;

fig. 6 is a top view of the insulating plate of embodiment 2 of a high-voltage circuit interlocking structure according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a PCB board according to embodiment 2 of the high-voltage circuit interlock structure according to an embodiment of the present invention.

1. An insulating plate; 11. buckling; 12. a cylinder; 2. a PCB board; 21. a socket; 22. a circular hole; 3. a microswitch; 4. a low-voltage plug-in; 5. a high-pressure insert.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings. The utility model discloses in words such as first, second, be for the description the utility model discloses a technical scheme is convenient and set up, and does not have specific limiting action, is general finger, right the technical scheme of the utility model does not constitute limiting action. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between 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. The technical solutions in the same embodiment and between the technical solutions in different embodiments can be arranged and combined to form a new technical solution without contradiction or conflict, which is all within the scope of the present invention.

Example 1

With reference to the attached figures 1-5, the high-voltage circuit interlocking structure comprises an insulating plate 1, a microswitch 3, a low-voltage plug-in 4 and a high-voltage plug-in 5, wherein the microswitch 3, the low-voltage plug-in 4 and the high-voltage plug-in 5 are electrically connected to the insulating plate 1, the microswitch 3, the low-voltage plug-in 4 and the high-voltage plug-in 5 are distributed at different positions on the insulating plate 1, a PCB 2 is arranged on the insulating plate 1, the PCB 2 is electrically connected with the microswitch 3, the low-voltage plug-in 4 and the high-voltage plug-in 5 through a low-voltage wire harness, and limit structures matched with each other are arranged on the insulating plate 1 and the PCB 2. The utility model discloses a constitute a series circuit and come all low pressure pencil of integration on pegging graft a PCB board 2 with a plurality of groups low pressure pencil is whole, do not have the mistake proofing requirement to low pressure pencil grafting position simultaneously, made things convenient for the installation to peg graft. The low-voltage plug-in 4 transmits low-voltage signals, the high-voltage plug-in 5 transmits high-voltage signals, and the microswitch 3 is used for controlling a circuit. All parts are connected to PCB board 2, make things convenient for accomodating of pencil, save inner space. The PCB board 2 and the insulating board 1 can be detachably connected, so that the assembly and disassembly are convenient. The buckle 11 is located the one end junction of insulation board 1 and PCB board 2, can detain when PCB board 2 installs the back, prevents that PCB board 2 from droing. The round hole 22 is matched with the cylinder 12 and used for limiting the PCB 2 and facilitating installation and positioning. The top of the buckle 11 is of an inclined plane structure, when the PCB 2 is pressed down, the buckle 11 can move horizontally, and the position is set aside so that the PCB 2 is pressed into the clamping groove reserved in the insulating plate 1; when the PCB 2 is dismounted, the buckle 11 is pressed aside, so that the PCB 2 can be simply and conveniently taken down. The draw-in groove bottom surface of fretwork can weight reduction to when dismantling PCB board 2, conveniently press down PCB board 2 from the back and lift PCB board 2 off from insulation board 1. The wire casing at 1 edge of insulation board can accomodate the low pressure pencil, makes the inner space clean and tidy orderly, has simplified the layout of interlocking pencil. The sockets 21 are used for electrical connection with the terminals of the low voltage wiring harness, and the sockets 21 in a series configuration allow the low voltage wiring harness to be connected in a misaligned configuration. The fillet structure of PCB board 2 is used for conveniently impressing PCB board 2 in insulation board 1, and the fillet structure has a buffering when making the edge contact, can protect staff's hand to avoid the fish tail again. The integral structure can improve the overall structural strength of the insulating plate 1.

The working principle is as follows:

and (3) mounting, namely aligning the circular hole 22 of the PCB 2 to the column 12 of the insulating plate 1, pressing the insulating plate 1 in, automatically yielding the buckle 11 at the moment, rebounding the buckle 11 after the PCB 2 is pressed in, buckling the PCB 2, and finally connecting the low-voltage wire harness to the PCB 2 to finish mounting.

Disassembling: the low-voltage wire harness is pulled out, the fastener 11 is pressed out of the range of the PCB 2, the PCB 2 is pressed from the back of the clamping groove of the insulating plate 1, and the low-voltage wire harness is pressed out to finish the disassembly.

When the integrated low-voltage wiring harness splicing device works, a plurality of groups of low-voltage wiring harnesses are all spliced on one PCB (printed circuit board) 2 to form a series circuit to integrate all the low-voltage wiring harnesses, and meanwhile, no mistake proofing requirement is required on the splicing positions of the low-voltage wiring harnesses, so that the installation and splicing are facilitated.

Example 2

With reference to fig. 6 to 7, compared with the technical solution of embodiment 1, the high-voltage circuit interlock structure of this embodiment can be improved as follows:

the number of the sockets 21 on the PCB 2 is adjusted according to the number of the high-voltage plug-ins 5, and as shown in the figure, the low-voltage plug-ins 4, the micro-switches 3 and the low-voltage wire harnesses (4 groups in total) of the 2 high-voltage plug-ins 5 are plugged onto the PCB 2.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a high pressure return circuit interlocking structure, its characterized in that, includes insulation board, micro-gap switch, low pressure plug-in components and high-pressure plug-in components, and micro-gap switch, low pressure plug-in components and high-pressure plug-in components electricity are connected in the insulation board, and micro-gap switch, low pressure plug-in components and high-pressure plug-in components distribute in the different positions on the insulation board, are equipped with the PCB board on the insulation board, and the PCB board is connected with micro-gap switch, low pressure plug-in components and high-pressure plug-in components electricity through low-voltage pencil, is equipped with the limit structure of looks adaptation on insulation board and the PCB board.

2. The high-voltage circuit interlocking structure as claimed in claim 1, wherein the limiting structure comprises a slot, a buckle and a cylinder on the insulating plate, and a round hole on the PCB; the clamping groove is matched with the PCB in shape, and the cylinder is matched with the round hole.

3. The interlocking structure of a high-voltage circuit as claimed in claim 2, wherein the top of the clip is a bevel structure, the root of the clip is fixed to the insulating plate, and the upper half of the clip has elasticity.

4. The interlock structure of claim 2, wherein the bottom surface of the locking groove is a hollow structure.

5. The high-voltage circuit interlocking structure as claimed in claim 1, wherein the insulating plate is provided with a wire groove at an edge thereof for receiving the low-voltage wire harness.

6. The structure of claim 1, wherein the PCB has sockets for electrical connection, the sockets being in a serial configuration.

7. The interlock structure for high voltage circuit as claimed in any one of claims 1 to 6, wherein the PCB board edge is provided with a rounded corner structure.

8. The high-pressure circuit interlock structure according to any one of claims 1 to 6, wherein said insulating plate is an integrally formed structure.