High-voltage testing device for module power supply

Abstract

The utility model discloses a module power supply high-voltage test device, which comprises a test box, a tool loading plate, a limiting block, a product accommodating space, a first sliding table cylinder, a second sliding table cylinder, an electric leakage test pin row and a high-voltage side plug connector, the surface of the tool loading plate is provided with a product accommodating space surrounded by a plurality of limiting blocks, the periphery of the tool loading plate is provided with a first sliding table cylinder and a second sliding table cylinder which are intruded into the product accommodating space, an electric leakage test needle row is erected on the first sliding table cylinder, and a high-voltage side plug connector is erected on the second sliding table cylinder. According to the high-voltage testing device for the module power supply, provided by the utility model, the high-voltage side connecting plug is modularly designed, and the wire slots are formed along the terminal slots on the basis to enhance the clamping force, so that the problem of testing errors caused by loosening of the connecting plug is solved; and the stability of electric connection and the reliability of a test result are improved.

Description

Technical Field

[0001] The utility model relates to the field of power components of new energy vehicles, in particular to a high-voltage test device for a modular power supply. Background Art

[0002] The modular power supplies equipped in electric vehicle charging stations need to be subjected to high-voltage tests before leaving the factory. The high-voltage test process has relatively high requirements for the electrical connection reliability of the connectors. High-intensity and high-frequency batch tests will cause rapid loss of the cell connectors. Different types of power supplies need to readjust the interfaces and wirings before testing, resulting in an increase in maintenance costs, an increase in maintenance difficulty, and an extension of maintenance time. Therefore, a large amount of manpower and material resources need to be invested in the product testing process. Content of the Utility Model

[0003] The main technical problem to be solved by the utility model is to provide a high-voltage test device for a modular power supply. Since the high-voltage side plug connectors are modularly designed, and wire grooves are opened along the terminal grooves on this basis to enhance the clamping force, not only the test error problem caused by connector loosening is solved, but also the electrical connection stability and the reliability of the test results are improved.

[0004] To solve the above technical problem, a technical solution adopted by the utility model is: to provide a high-voltage test device for a modular power supply, including a test box, a work loading plate, a limiting block, a product accommodation space, a first sliding table cylinder, a second sliding table cylinder, a leakage test needle row, and a high-voltage side plug connector. A work loading plate is arranged in the test box. A product accommodation space surrounded by a number of limiting blocks is arranged on the surface of the work loading plate. The periphery of the work loading plate is provided with a first sliding table cylinder and a second sliding table cylinder that intrude into the product accommodation space. A leakage test needle row is mounted on the first sliding table cylinder, and a high-voltage side plug connector is mounted on the second sliding table cylinder.

[0005] In a preferred embodiment of the utility model, the test box has a cuboid structure and is divided into an open bottom shell and a movable flip cover along a line at the lower edge of the front surface and the rear edge of the top surface. The open bottom shell and the movable flip cover are movably connected by a hinge at the rear part of the top surface of the test box. The front part of the side surface of the open bottom shell is connected to the rear part of the side surface of the movable flip cover by a pneumatic rod. An electronic lock is installed on one side surface inside the test box and is arranged on both sides of the joint between the open bottom shell and the movable flip cover. Part of the test box wall is hollowed out and inlaid with a weight-reducing acrylic plate. Handling handles are arranged on both sides of the test box.

[0006] In a preferred embodiment of the utility model, a cylindrical wire box is arranged in the test box, an electrical signal connector is externally connected to the high position of the cylindrical wire box, and a first-level heavy-load connector is externally connected to the low position of the cylindrical wire box, and the electrical signal connector and the first-level heavy-load connector are layered and isolated from each other; a second-level heavy-load connector is arranged in the test box, the leakage test pin row and the high-voltage side plug connector are respectively connected to the second-level heavy-load connector, and the second-level heavy-load connector is respectively connected to the electrical signal connector and the first-level heavy-load connector through the cylindrical wire box.

[0007] In a preferred embodiment of the utility model, the high-voltage side plug connector is composed of a module panel and a female seat that are overlapped and locked with each other, the module panel is locked on the surface of the female seat by bolts, and the female seat is mounted on the second slide cylinder through a transfer plate by bolts, the front of the module panel is provided with an integrally formed pin, the back of the module panel is provided with a module slot, the surface of the female seat is provided with an integrally formed module end seat, the module end seat and the module slot are matched and plugged with each other, the core of the pin, the inside of the module slot, and the core of the module end seat are coaxially opened and plugged with a battery cell, and the battery cell is connected to the secondary heavy-load connector.

[0008] In a preferred embodiment of the utility model, a plurality of probes are arranged on the leakage test needle row, and the probes are nested in a buffer block with holes, and two ends of the buffer block are arranged on the leakage test needle row through spring ejectors.

[0009] In a preferred embodiment of the utility model, the end of the plug is provided with a terminal groove matching the battery cell, and the end of the plug is provided with a wire groove passing through the terminal groove, the wire groove divides the plug into an upper half and a lower half, and the upper half and the lower half constitute a clip structure.

[0010] The beneficial effect of the utility model is that the utility model provides a modular power supply high-voltage testing device, which has a modular design for the high-voltage side plug connector and, on this basis, opens a wire groove along the terminal groove to enhance the holding force. Therefore, it not only solves the test error problem caused by loose connectors, but also improves the stability of electrical connections and the reliability of test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0012] Figure 1 This is an overall structural diagram of a preferred embodiment of a module power supply high voltage test device of the utility model;

[0013] Figure 2 It is a structural diagram of a plug pin of a preferred embodiment of a high-voltage test device for a module power supply of the present utility model;

[0014] Figure 3 It is a structural diagram of a battery cell of a preferred embodiment of a high-voltage test device for a module power supply of the present utility model;

[0015] Figure 4 It is a structural diagram of the upper half and the lower half of a preferred embodiment of a high-voltage test device for a module power supply of the present utility model;

[0016] Figure 5 It is a structural diagram of a probe of a preferred embodiment of a high-voltage test device for a module power supply of the present utility model;

[0017] Figure 6 It is a structural diagram of a module power supply of a preferred embodiment of a high-voltage test device for a module power supply of the present utility model. Detailed implementation manners

[0018] The technical solutions in the embodiments of the present utility model will be clearly and completely described below. Apparently, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0019] As Figure 1-4 shown, the embodiments of the present utility model include:

[0020] A high-voltage test device for a module power supply, including a test box 1, a work loading plate 2, a limit block 3, a product accommodation space, a first slide table cylinder 4, a second slide table cylinder 5, a leakage test needle row 6, and a high-voltage side plug connector 7. A work loading plate 2 is arranged in the test box 1. A product accommodation space surrounded by a plurality of limit blocks 3 is arranged on the surface of the work loading plate 2. A first slide table cylinder 4 and a second slide table cylinder 5 that invade the product accommodation space are arranged outside the work loading plate 2. A leakage test needle row 6 is mounted on the first slide table cylinder 4, and a high-voltage side plug connector 7 is mounted on the second slide table cylinder 5.

[0021] Among them, the test box 1 has a cuboid structure and is divided into an open bottom shell 10 and a movable flip cover 11 along a line of the front lower edge 8 and the top rear edge 9. The open bottom shell 10 and the movable flip cover 11 are movably connected by a hinge at the rear part of the top surface of the test box 1. The front part 12 of the side surface of the open bottom shell 10 is connected to the rear part 13 of the side surface of the movable flip cover 11 by a pneumatic rod 14. An electronic lock 16 is installed on one side surface 15 inside the test box 1 and is disposed on both sides of the seam between the open bottom shell 10 and the movable flip cover 11. Part of the box wall of the test box 1 is hollowed out and inlaid with a weight-reducing acrylic plate 17. Handling handles 18 are provided on both sides of the test box 1.

[0022] Furthermore, a cylindrical wire box 19 is provided inside the test box 1. An electrical signal connector 30 is externally connected to the high position of the cylindrical wire box 19, and a first-stage heavy-duty connector 31 is externally connected to the low position of the cylindrical wire box 19. The electrical signal connector 30 and the first-stage heavy-duty connector 31 are isolated from each other in layers. A second-stage heavy-duty connector 32 is provided inside the test box 1. The leakage test probe row 6 and the high-voltage side plug connector 7 are respectively connected to the second-stage heavy-duty connector 32. The second-stage heavy-duty connector 32 is externally connected to the electrical signal connector 30 and the first-stage heavy-duty connector 31 respectively through the cylindrical wire box 19.

[0023] Furthermore, the high-voltage side plug connector 7 is composed of a module panel 33 and a female seat 34 that are overlapped and locked with each other. The module panel 33 is locked on the surface of the female seat 34 by bolts. The female seat 34 is mounted on the second sliding table cylinder 5 through a bolt via an adapter plate. A plug pin 35 is integrally formed on the front surface of the module panel 33. A module slot 36 is formed on the back surface of the module panel 33. A module end seat 37 is integrally formed on the surface of the female seat 34. The module end seat 37 and the module slot 36 are inserted into each other in a matching manner. Coaxial holes are formed in the core of the plug pin 35, the inside of the module slot 36, and the core of the module end seat 37, and a battery core 38 is inserted. The battery core 38 is connected to the second-stage heavy-duty connector 32.

[0024] Furthermore, a plurality of probes 39 are provided on the leakage test probe row 6. The probes 39 are nested in a buffer block 40 with holes. Both ends of the buffer block 40 are arranged on the leakage test probe row 6 through spring thimbles 41.

[0025] Furthermore, a terminal groove 42 matching the battery core 38 is formed at the end of the plug pin 35. A wire groove 43 passing through the terminal groove 42 is formed at the end of the plug pin 35. The wire groove 43 divides the plug pin 35 into an upper half 44 and a lower half 45. The upper half 44 and the lower half 45 form a clip structure.

[0026] To provide sufficient space for the module power supply 100 under test during installation, the test box 1 of this product is divided into two parts: a movable flip cover 11 with a wedge-shaped structure and an open bottom shell 10. The front and upper surfaces of the test box 1 are both open for the module power supply 100 to be carried, thus reducing the handling difficulty during the loading process and improving the safety and stability of the loading process.

[0027] The signal circuit and the high-voltage circuit jointly participate in the high-voltage test of the module power supply 100. To improve the stability and safety of the test process, the signal circuit is led out by the electrical signal connector 30 at the cylindrical wire box 19, and the high-voltage circuit is led out by the first-stage heavy-duty connector 31 at the cylindrical wire box 19. The two are isolated and shielded from each other in layers.

[0028] To improve the compatibility of the test device, the high-voltage side plug connector 7 is specifically designed as a modular structure. It only needs to remove and replace the module panel 33 from the female seat 34 to achieve quick replacement. There is no need to perform operations such as circuit connection, crimping, and wiring during the replacement process, and the maintenance process is safe and efficient.

[0029] In addition, this device verifies the leakage situation of the module power supply 100 under different high-voltage conditions by means of the probe 39 contacting the module power supply 100 under test. During the test, the probe 39 must be contacted with the outer shell of the module power supply 100 by the first sliding table cylinder 4. To prevent damage caused by the overload of the probe 39, a buffer block 40 is added on the leakage test needle row 6 with a spring ejector pin 41. The buffer block 40 can stably control the thrust output of the sliding table cylinder, enabling the probe 39 to achieve soft contact with the outer shell of the module power supply 100 during the loading process.

[0030] In addition, the reliability of the electrical connection needs to be fully guaranteed during the high-voltage test process. Therefore, a wire groove 43 is additionally opened on the plug pin 35 based on the position of the terminal groove 42. The thickness of the wire groove 43 is less than the diameter of the terminal groove 42, enabling the upper half 44 and the lower half 45 to fully clamp the terminal, establishing a stable electrical connection between the battery cell 38 and the terminal, and improving the reliability of the test data.

[0031] In summary, the present utility model provides a high-voltage test device for a module power supply 100. Since the high-voltage side plug connector 7 is modularly designed and a wire groove 43 is opened along the terminal groove 42 on this basis to enhance the clamping force, not only the problem of test errors caused by loose connectors is solved, but also the stability of the electrical connection and the reliability of the test results are improved.

[0032] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural or equivalent process transformation made by using the content of the specification of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A module power supply high voltage test device, characterized in that: It includes a test box, a work loading plate, a limit block, a product accommodating space, a first slide cylinder, a second slide cylinder, a leakage test needle row, and a high-voltage side plug connector. The test box is provided with a work loading plate, and the surface of the work loading plate is provided with a product accommodating space surrounded by a number of limit blocks. The periphery of the work loading plate is provided with a first slide cylinder and a second slide cylinder invading the product accommodating space, the first slide cylinder is provided with a leakage test needle row, and the second slide cylinder is provided with a high-voltage side plug connector.

2. The module power supply high voltage test device according to claim 1, characterized in that: The test box has a rectangular structure and is divided into an open bottom shell and a movable flap along a line between the lower edge of the front surface and the rear edge of the top surface. The open bottom shell and the movable flap are movably connected by a hinge at the rear position of the top surface of the test box, and the front side of the open bottom shell and the rear side of the movable flap are connected by a pneumatic rod. Electronic locks are installed on one side of the test box and are placed on both sides of the joint between the open bottom shell and the movable flap. The wall of the test box is partially hollowed out and inlaid with weight-reducing acrylic panels, and carrying handles are provided on both sides of the test box.

3. The module power supply high voltage test device according to claim 1, characterized in that: The test box is provided with a cylindrical wire box, the high position of the cylindrical wire box is externally connected with an electric signal connector, the low position of the cylindrical wire box is externally connected with a first-level heavy-load connector, and the electric signal connector and the first-level heavy-load connector are mutually isolated in layers; A secondary heavy-load connector is arranged in the test box, the leakage test pin row and the high-voltage side plug connector are respectively connected to the secondary heavy-load connector, and the secondary heavy-load connector is respectively connected to the electrical signal connector and the primary heavy-load connector through a cylindrical wire box.

4. The module power supply high voltage test device according to claim 1, characterized in that: The high-voltage side plug connector consists of a module panel and a female socket that are overlapped and locked with each other. The module panel is locked on the surface of the female socket by bolts, and the female socket is mounted on the second slide cylinder through a bolt via an adapter plate. The front of the module panel is provided with an integrally formed pin, and the back of the module panel is provided with a module slot. The surface of the female socket is provided with an integrally formed module end seat, and the module end seat and the module slot are matched and plugged in with each other. The core of the pin, the inside of the module slot, and the core of the module end seat have coaxial openings and are plugged with battery cells, and the battery cells are connected to the secondary heavy-duty connector.

5. The module power supply high voltage test device according to claim 1, characterized in that: A plurality of probes are arranged on the leakage test needle row, and the probes are nested in a buffer block with holes, and two ends of the buffer block are arranged on the leakage test needle row through spring ejectors.

6. The module power supply high voltage test device according to claim 4, characterized in that: The end of the plug is provided with a terminal groove matching the battery core, and the end of the plug is provided with a wire groove passing through the terminal groove, and the wire groove divides the plug into an upper half and a lower half, and the upper half and the lower half form a clip structure.

Images