A functional testing fixture for a new energy high-voltage box MSD

Abstract

This utility model belongs to the field of high-voltage boxes and relates to a functional testing fixture for a new energy high-voltage box MSD (Mean Differential Detection) system. It includes an upper cover and a lower housing, which are detachably connected by fasteners, forming an installation space between them. A copper adapter is installed on each of the left and right sides of the lower housing, with a fuse located between the two adapters within the installation space. The conductive posts of the adapters extend to the outside of the lower housing. Pins are connected to the front and rear sides of the lower housing. A clearance groove is provided at the bottom of the lower housing, with some pins located within it. The inner ends of the pins are electrically connected to a test wiring harness. The advantages of this structure are: improved testing efficiency, reduced testing fixture usage costs, reduced mis-insertion and reverse installation problems, reduced damage rate of the testing fixture, optimized fixture structure, and improved maintenance convenience.

Description

Technical Field

[0001] This utility model belongs to the field of high voltage box technology, specifically, it relates to a functional testing fixture for a new energy high voltage box MSD. Background Technology

[0002] In the new energy industry, the high-voltage box is a key component in core equipment such as new energy vehicles and energy storage systems that ensures electrical safety and stable operation. The MSD (Manual Service Disconnect) functional testing of the high-voltage box is of paramount importance.

[0003] Currently, the functional testing of new energy high-voltage boxes (MSDs) is extremely demanding. Testers need to concentrate for long periods, repeatedly performing tedious plugging and unplugging and connection operations. This prolonged high-intensity work not only exhausts the testers physically and mentally but also easily leads to operational errors due to fatigue, further affecting the accuracy and efficiency of the tests. Therefore, improvements are necessary. Utility Model Content

[0004] To address the aforementioned problems in the prior art, this utility model provides a functional testing fixture for a new energy high-voltage box MSD.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: As one aspect of this utility model, a functional testing fixture for a new energy high-voltage box MSD is proposed, comprising: an upper cover and a lower housing, the upper cover and the lower housing being detachably connected by fasteners, forming an installation space between the upper cover and the lower housing, a connecting copper component being installed on the left and right sides of the lower housing respectively, and a fuse being provided between the two connecting copper components, the fuse being located within the installation space; the conductive post of the connecting copper component extends to the outside of the lower housing; Pins are connected to the front and rear sides of the lower housing respectively; a clearance groove is provided at the bottom of the lower housing, and some pins are located in the clearance groove; The inner end of the pin is electrically connected to a test wire harness.

[0006] Furthermore, it also includes a pressure cap, on which the pin passes, and the pressure cap is connected to the lower housing by fasteners.

[0007] Furthermore, a mounting groove adapted to the adapter copper component is formed inside the lower housing.

[0008] Furthermore, a handle is detachably connected to the top cover.

[0009] Furthermore, a foolproof groove is formed on the outer side wall of the lower housing.

[0010] Furthermore, a mating recess is formed at the bottom of the lower housing.

[0011] The beneficial effects of this utility model's new energy high-voltage box MSD functional testing fixture are specifically reflected in the following aspects: positioning is achieved through the conductive holes on the MSD base of the high-voltage box via the adapter copper part; the anti-misplacement groove cooperates with the anti-misplacement guide strip of the MSD base of the high-voltage box to prevent misplacement and reverse installation; the clearance groove provides clearance protection for the pins, effectively preventing pin damage and bending; the pressure cap allows for quick replacement of damaged pins; it also allows for the replacement of pins of different lengths; different specifications of fuses can be used to meet different testing scenarios, expanding the application scenarios; and it facilitates the replacement of damaged adapter copper parts to adapt to different MSD bases; the handle improves the ease of operation and increases the efficiency of installation and disassembly. Attached Figure Description

[0012] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0013] Figure 1 This is the main structural view of the new energy high-voltage box MSD functional testing fixture of this utility model; Figure 2 This is a bottom view of the structure of the new energy high voltage box MSD functional testing fixture of this utility model; Figure 3 This is a schematic diagram of the lower shell and the connecting copper part of this utility model; Figure 4 This is a schematic diagram of the lower shell of this utility model. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0015] One embodiment of this application provides a functional testing fixture for a new energy high-voltage box MSD, such as... Figures 1-4As shown, it includes: an upper cover 1 and a lower housing 2, which are detachably connected by fasteners, forming an installation space between them. A connecting copper component 3 is installed on each of the left and right sides of the lower housing 2, and a fuse is provided between the two connecting copper components 3. The fuse is located within the installation space, and its structure is existing known technology, which will not be described in detail here. The conductive post 31 of the connecting copper component 3 extends to the outside of the lower housing 2. The structure of the connecting copper component 3 is existing known technology, which will not be described in detail here. In use, the conductive post 31 of the connecting copper component 3 mates with the conductive hole on the MSD base of the high-voltage box to achieve electrical conduction. Pins 4 are connected to the front and rear sides of the lower housing 2 respectively. The pins 4 cooperate with the test pins on the MSD base of the high voltage box to achieve test continuity. A clearance groove 21 is provided at the bottom of the lower housing 2. The clearance groove 21 is used to make way for the pins 4, that is, part of the pins 4 are located in the clearance groove 21. The inner end of the pin 4 is electrically connected to the test harness 5, which is connected to the corresponding test equipment. This is a known technology and will not be described in detail here. The focus of this application is: how to connect the pin 4, the adapter copper part 3 and the fuse into a whole to reduce the number of plugs during testing.

[0016] In one embodiment, such as Figures 3-4 As shown, it also includes a pressure cap 6, on which the pin 4 passes. The pressure cap 6 is connected to the lower housing 2 by fasteners to realize the installation of the pin 4. The lower housing 2 is provided with a through hole for the pin 4 to pass through, so that part of the pin 4 is located in the relief groove 21.

[0017] In one embodiment, such as Figure 4 As shown, the lower housing 2 has a mounting groove 22 that is compatible with the adapter copper part 3, which facilitates the installation of the adapter copper part 3. The mounting groove 22 has a through hole for the conductive post 31 to pass through.

[0018] In one embodiment, such as Figure 1 As shown, the upper cover 1 is detachably connected to a handle 7 by fasteners for easy handling.

[0019] In one embodiment, such as Figures 1-2 As shown, a foolproof groove 23 is formed on the outer side wall of the lower housing 1, and the foolproof groove 23 cooperates with the foolproof guide strip of the MSD base of the high voltage box.

[0020] In one embodiment, the bottom of the lower housing 1 is formed with a mating recess 24 that mates with the protrusion of the MSD base of the high voltage box, making the mating of the two more convenient; the conductive post 31 of the adapter copper part 3 is located in the mating recess 24.

[0021] In this embodiment, positioning is achieved by the adapter copper part 3 and the conductive hole on the MSD base of the high-voltage box. The anti-misplacement groove 23 cooperates with the anti-misplacement guide strip of the MSD base of the high-voltage box to prevent misplacement and reverse installation. The clearance groove 21 provides clearance protection for the pin 4, effectively preventing damage and bending of the pin. The pressure cap allows for quick replacement of damaged pins. It also allows for the replacement of pins of different lengths. Different test scenarios can be achieved by replacing fuses of different specifications, expanding the application scenarios and facilitating the replacement of damaged adapter copper parts to adapt to different MSD bases. The handle improves the ease of operation and increases the efficiency of installation and disassembly.

[0022] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall be covered by the present utility model.

Claims

1. A functional testing fixture for a new energy high-voltage box MSD, characterized in that, It includes: The upper cover (1) and the lower housing (2) are detachably connected by fasteners. An installation space is formed between the upper cover (1) and the lower housing (2). A connecting copper part (3) is installed on the left and right sides of the lower housing (2). A fuse is provided between the two connecting copper parts (3) and the fuse is located in the installation space. The conductive post (31) of the connecting copper part (3) extends to the outside of the lower housing (2). Pins (4) are connected to the front and rear sides of the lower housing (2); a clearance groove (21) is provided at the bottom of the lower housing (2), and some of the pins (4) are located in the clearance groove (21); The inner end of the pin (4) is electrically connected to a test wire harness (5).

2. The functional testing fixture for the new energy high-voltage box MSD as described in claim 1, characterized in that, It also includes a pressure cap (6), on which the pin (4) passes. The pressure cap (6) is connected to the lower housing (2) by fasteners.

3. The functional testing fixture for the new energy high-voltage box MSD as described in claim 1, characterized in that, The lower housing (2) has an installation groove (22) that is compatible with the adapter copper part (3).

4. The functional testing fixture for the new energy high-voltage box MSD as described in claim 1, characterized in that, A handle (7) is detachably connected to the top cover (1).

5. The functional testing fixture for the new energy high-voltage box MSD as described in claim 1, characterized in that, A foolproof groove (23) is formed on the outer side wall of the lower housing (2).

6. The functional testing fixture for the new energy high-voltage box MSD as described in claim 1, characterized in that, The bottom of the lower housing (2) has a mating recess (24).

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