An insulation detection device for a battery pack

Abstract

The application discloses an insulation detection device for a battery pack, and relates to the field of insulation detection devices, which comprises a first sliding rail, a length direction of the first sliding rail is set as a first direction; a first support, the first support is slidingly arranged on the first sliding rail, a length direction of the first support is set as a second direction, the first direction and the second direction are arranged vertically; a second support, the second support is slidingly arranged on the first support; and a first driving assembly, the first driving assembly is installed on the second support. After the position of the baffle is determined by the inductor, the second cylinder is started to drive the plug block to be inserted into or moved out of the plug slot of the rod body, so that the movement of the insulation detection probe in the first direction can be split and other insulation detection probes can be flexibly controlled, and the cost of separately configuring a movement structure for each insulation detection probe in the first direction is reduced.

Description

Technical Field

[0001] This application relates to the field of insulation testing devices, and in particular to an insulation testing device for a battery pack. Background Technology

[0002] With the rapid development of new energy vehicles and energy storage systems, battery pack safety has become a key concern. Insulation testing is a crucial step in ensuring the safe operation of battery packs, typically testing whether there is insulation between the casing and the battery cells.

[0003] Conventional battery pack insulation testing devices are typically controlled by a complete drive system, which can only control the movement of a single insulation testing probe. This results in high overall testing costs for the device and an inability to flexibly control other insulation testing probes. Summary of the Invention

[0004] To address the issue that the drive system can only move a single insulation detection probe, this application provides an insulation detection device for a battery pack.

[0005] The insulation testing device for battery packs provided in this application adopts the following technical solution:

[0006] include:

[0007] The first slide rail, wherein the length direction of the first slide rail is set as the first direction;

[0008] A first bracket is slidably mounted on a first slide rail, and the length direction of the first bracket is set as a second direction, with the first direction and the second direction being perpendicular to each other.

[0009] The second support is slidably mounted on the first support;

[0010] A first drive assembly is mounted on a second bracket and is used to drive the second bracket to move along a second direction.

[0011] A second drive assembly is mounted on a second bracket and is capable of moving vertically and performing insulation detection.

[0012] A connecting component, which is mounted on a first bracket;

[0013] An external drive assembly is capable of being plugged into a connecting assembly, and the external drive assembly is capable of driving the connecting assembly to move along a first direction.

[0014] By adopting the above technical solution, the device can move along the first and second directions. Combined with vertical movement, it can perform insulation testing on the battery pack. The external drive component and the connecting component can be plugged in to drive it to move along the first direction, improving testing flexibility and reducing costs.

[0015] Optionally, a pneumatic guide rail lock is installed on the first bracket. The pneumatic guide rail lock is slidably connected to the first slide rail and can lock itself in position on the first slide rail.

[0016] By adopting the above technical solution, the pneumatic guide rail lock installed on the first bracket is slidably connected to the first slide rail and can lock its own position, which can improve the stability of the device.

[0017] Optionally, a second slide rail is installed on the first bracket, and a slider is installed on the second bracket. The slider is slidably connected to the second slide rail, thereby realizing a sliding connection between the first bracket and the second bracket.

[0018] By adopting the above technical solution, the cooperation between the slider and the second slide rail makes the sliding connection between the first support and the second support more stable, which is conducive to improving the stability and accuracy of the detection process.

[0019] Optionally, the first driving component includes:

[0020] A driving component, which is mounted on a second bracket;

[0021] Gear, wherein the driving element is capable of driving the gear to rotate;

[0022] A rack is mounted on a first bracket, and the gear and the rack mesh with each other.

[0023] By adopting the above technical solution, the drive component installed on the second bracket drives the gear to rotate and mesh with the rack installed on the first bracket, thereby driving the second bracket to move along the second direction, thereby causing the second drive component installed on the second bracket to change position in the second direction, which facilitates insulation testing at different positions of the battery pack.

[0024] Optionally, the driving component is a geared motor, and the gear is installed at the output end of the geared motor.

[0025] By adopting the above technical solution, using a geared motor as the driving component and installing a gear at its output end, the driving component can stably drive the gear to rotate. Then, through the meshing of the gear and rack, the second bracket can be stably driven to move along the second direction, providing stable power for the battery pack insulation detection device to adjust its position in the second direction.

[0026] Optionally, the second driving component includes:

[0027] A lifting structure, wherein the lifting structure is mounted on a second bracket;

[0028] The first cylinder is mounted on a lifting structure, which can drive the first cylinder to move in a vertical direction;

[0029] An insulation testing probe is mounted on the movable end of a first cylinder, which drives the insulation testing probe to move in a first direction and complete the insulation test.

[0030] By adopting the above technical solution, the lifting structure can drive the first cylinder to move in the vertical direction, and the first cylinder can drive the insulation detection probe to move in the first direction, thereby completing the battery pack insulation detection.

[0031] Optionally, the lifting structure is a servo module.

[0032] By adopting the above technical solution, the lifting structure is set as a servo module, which can drive the first cylinder to move in the vertical direction, thereby bringing the insulation detection probe closer to the battery pack to complete the insulation detection, thus improving the motion accuracy and stability of the device.

[0033] Optionally, the connection component includes:

[0034] A rod body is mounted on a first bracket, and a slot is provided on the rod body. The external drive assembly can be inserted into the slot to complete the connection between the external drive assembly and the rod body.

[0035] A baffle plate is mounted on the rod body, and the external drive assembly can determine the position of the rod body through the baffle plate.

[0036] By adopting the above technical solution, the rod of the connecting component has a slot for the external drive component to be inserted to complete the connection. The external drive component can determine the position of the rod through the baffle, which facilitates the external drive component to drive the connecting component to move along the first direction, thereby realizing the control of the insulation detection position.

[0037] Optionally, the external drive assembly includes:

[0038] Drive structure;

[0039] The second cylinder is mounted on a drive structure, which is capable of driving the second cylinder to move along a first direction;

[0040] An insert block is mounted on the movable end of the second cylinder and can be inserted into a slot.

[0041] A sensor, mounted on the drive structure, is capable of sensing the position of the baffle.

[0042] By adopting the above technical solution, the driving structure drives the sensor to move along the first direction. The sensor senses the position of the baffle. After the position of the baffle is determined, the second cylinder drives the plug block to insert into the slot to complete the connection between the external drive assembly and the connecting assembly. This drives the connecting assembly to move along the first direction, thereby changing the position of the insulation detection probe in the first direction, improving the flexibility of insulation detection and reducing costs.

[0043] Optionally, the drive structure is a rack and pinion drive.

[0044] By adopting the above technical solution, the device can achieve linear motion. The external drive component can drive the connecting component to move along the first direction, thereby driving the insulation detection probe to change its position in the first direction. Moreover, the use of gear and rack transmission has stability and accuracy, and can effectively complete the insulation detection of the battery pack.

[0045] In summary, this application includes at least one of the following beneficial technical effects:

[0046] After the position of the baffle is determined by the sensor, the second cylinder is activated to drive the insert block to insert or move out of the slot of the rod. This allows the movement of the insulation detection probe in the first direction to be separated and other insulation detection probes to be flexibly controlled, reducing the cost of configuring a separate movement structure for each insulation detection probe in the first direction. Attached Figure Description

[0047] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0048] Figure 1 This is an axial view of the present application; Figure 2 This is a bottom view of this application; Figure 3 This is an axial view of the external drive assembly of this application; Figure 4 This is a bottom view of the external drive component of this application; Figure 5 For this application Figure 4 Enlarged view of point A in the middle.

[0052] Reference numerals: 1. First slide rail; 2. First bracket; 21. Pneumatic guide rail lock; 22. Second slide rail; 3. Second bracket; 31. Slider; 4. First drive assembly; 41. Drive component; 42. Gear; 43. Rack; 5. Second drive assembly; 51. Lifting structure; 52. First cylinder; 53. Insulation detection probe; 6. Connecting assembly; 61. Rod; 611. Slot; 62. Baffle; 7. External drive assembly; 71. Drive structure; 72. Second cylinder; 73. Insert block; 74. Sensor; 741. Sensing slot. Detailed Implementation

[0053] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0054] This application discloses an insulation testing device for battery packs.

[0055] Reference Figure 1 The insulation testing device for battery packs includes: a first slide rail 1, a first bracket 2, a second bracket 3, a first drive assembly 4, a second drive assembly 5, a connecting assembly 6, and an external drive assembly 7. The position of the insulation test is controlled by the insertion of the external drive assembly 7 into the connecting assembly 6. This allows the external drive assembly 7 to sequentially control other insulation tests by docking with different connecting assemblies 6, improving flexibility and reducing costs.

[0056] like Figure 1 As shown, there are two first slide rails 1, and the length direction of the first slide rail 1 is set as the first direction.

[0057] like Figure 1 As shown, the first bracket 2 is slidably disposed between two first slide rails 1. Specifically, pneumatic guide rail locks 21 (a device that uses compressed air as power to clamp or fix the slider of a linear motion guide rail) are fixedly or detachably installed at both ends of the first bracket 2. The pneumatic guide rail locks 21 are slidably connected to the first slide rails 1 and can lock their own position on the first slide rails 1, thereby improving the stability of the device. The length direction of the first bracket 2 is set as the second direction, and the first direction and the second direction are perpendicular to each other.

[0058] like Figure 1 and Figure 2 As shown, the second bracket 3 is slidably mounted on the first bracket 2. Specifically, the top and bottom of the first bracket 2 are fixedly or detachably mounted with the second slide rail 22, and the surface of the second bracket 3 near the second slide rail 22 is fixedly or detachably mounted with the slider 31. The slider 31 is slidably connected to the second slide rail 22, thereby realizing the sliding connection between the first bracket 2 and the second bracket 3.

[0059] like Figure 2As shown, the first drive assembly 4 is mounted on the second bracket 3. The first drive assembly 4 is used to drive the second bracket 3 to move along the second direction. Specifically, the first drive assembly 4 includes: a drive member 41, a gear 42 and a rack 43.

[0060] The drive component 41 is mounted on the second bracket 3, and the drive component 41 is preferably a geared motor; the gear 42 is fixedly or detachably mounted on the output end of the geared motor, so that the drive component 41 can drive the gear 42 to rotate; the rack 43 is fixedly or detachably mounted on the first bracket 2, and the gear 42 and the rack 43 mesh with each other.

[0061] like Figure 2 As shown, the second drive assembly 5 is mounted on the second bracket 3. The second drive assembly 5 can move in the vertical direction and perform insulation detection. Specifically, the second drive assembly 5 includes: a lifting structure 51, a first cylinder 52 and an insulation detection probe 53.

[0062] The lifting structure 51 is fixedly or detachably installed on one side of the second bracket 3 and is vertically arranged. The lifting structure 51 is preferably a servo module (a modular motion unit that highly integrates a servo motor, driver, controller, and mechanical transmission components such as ball screws, synchronous belts, and linear guides). The first cylinder 52 is fixedly or detachably installed on the moving end of the lifting structure 51, and the lifting structure 51 can drive the first cylinder 52 to move in the vertical direction. The insulation detection probe 53 (a precision contact test element specifically used to evaluate the insulation performance of electrical circuits, electronic components, or materials) is fixedly or detachably installed on the moving end of the first cylinder 52. The first cylinder 52 can drive the insulation detection probe 53 to move within a small range in the first direction and complete the insulation test (the first cylinder 52 is to improve the moving accuracy of the insulation detection probe 53 in the first direction, and the insulation detection probe 53 can be directly connected to the moving end of the lifting structure 51).

[0063] like Figure 2 As shown, the connecting component 6 is installed on the first bracket 2. Specifically, the connecting component 6 includes a rod 61 and a baffle 62.

[0064] The rod body 61 has two parts, which are fixedly or detachably installed at both ends of the top of the first bracket 2. The top of the rod body 61 has an approximately rectangular slot 611, into which the external drive assembly 7 can be inserted to complete the connection between the external drive assembly 7 and the rod body 61 (the specific connection method is described in detail below). The baffle 62 is an L-shaped plate structure, which is fixedly or detachably installed on the top of one side of the rod body 61. The external drive assembly 7 can determine the position of the rod body 61 through the baffle 62 (the specific confirmation method is described in detail below).

[0065] like Figure 3As shown, the external drive assembly 7 can be plugged into the connecting assembly 6, and the external drive assembly 7 can drive the connecting assembly 6 to move along the first direction. Specifically, as shown... Figure 3 and Figure 4 As shown, the external drive assembly 7 includes: a drive structure 71, a second cylinder 72, a plug block 73, and a sensor 74.

[0066] The drive structure 71 preferably uses a rack and pinion transmission structure, but other structures capable of linear motion can also be used. Two second cylinders 72 are provided, which are fixedly or detachably installed at both ends of the drive structure 71. The drive structure 71 can drive the second cylinders 72 to move along the first direction. The insert 73 is approximately rectangular and is installed at the movable end of the second cylinder 72. By controlling the second cylinder 72, the insert 73 can be inserted into the slot 611, thereby realizing a temporary connection between the connecting component 6 and the external drive component 7. The sensor 74 has a sensing groove 741 at its bottom. A transmitter and a receiver are respectively installed on the two adjacent sides of the sensing groove 741. The sensor 74 is fixedly or detachably installed on the drive structure 71. The sensor 74 can sense the position of the baffle 62. Specifically, when the baffle 62 enters the sensing groove 741 at the bottom of the sensor 74 and blocks between the transmitter and the receiver, the position of the baffle 62 is determined.

[0067] The implementation principle of the insulation testing device for a battery pack in this application is as follows: A first slide rail 1 is fixedly or detachably installed above the battery pack to be tested, and a drive structure 71 is fixedly or detachably installed above the first slide rail 1. The drive structure 71 is activated to drive the sensor 74 to move along the first direction. When the sensor 74 determines the position of the baffle 62, the second cylinder 72 is activated to drive the insert block 73 to insert into the slot 611 of the rod body 61 to complete the connection. At this time, the drive structure 71 can drive the insulation testing probe 53 to change the position in the first direction through the connection. The drive component 41 is activated to drive the gear 42 to rotate. The gear 42 changes the position of the second bracket 3 in the second direction through meshing with the rack 43. At the same time, the position of the insulation testing probe 53 in the second direction is also changed. Finally, the lifting structure 51 is activated to drive the insulation testing probe 53 to approach the battery pack. At the same time, the first cylinder 52 drives the insulation testing probe 53 to contact the battery pack, thereby completing the insulation test of the battery pack.

[0068] After the sensor 74 determines the position of the baffle 62, the second cylinder 72 is activated to drive the insert block 73 to insert or move out of the slot 611 of the rod body 61. This allows the movement of the insulation detection probe 53 in the first direction to be separated and other insulation detection probes to be flexibly controlled, reducing the cost of configuring a separate movement structure for each insulation detection probe in the first direction.

[0069] Unless otherwise defined, the terms or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar words used in this application description do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "a" or "one," and similar words do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising," "including," and similar words mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0070] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An insulation testing device for a battery pack, characterized in that: include: The first slide rail (1) has its length direction set as the first direction; The first bracket (2) is slidably mounted on the first slide rail (1), and the length direction of the first bracket (2) is set as the second direction, and the first direction and the second direction are set perpendicularly; The second bracket (3) is slidably mounted on the first bracket (2); A first drive assembly (4) is mounted on a second bracket (3) and is used to drive the second bracket (3) to move along a second direction; The second drive assembly (5) is mounted on the second bracket (3) and is capable of moving vertically and performing insulation detection. A connecting component (6) is mounted on a first bracket (2); An external drive assembly (7) is capable of being plugged into a connecting assembly (6) and is capable of driving the connecting assembly (6) to move along a first direction.

2. The insulation testing device for a battery pack according to claim 1, characterized in that: A pneumatic guide rail lock (21) is installed on the first bracket (2). The pneumatic guide rail lock (21) is slidably connected to the first slide rail (1). The pneumatic guide rail lock (21) can lock itself in position on the first slide rail (1).

3. The insulation testing device for a battery pack according to claim 1, characterized in that: The first bracket (2) is equipped with a second slide rail (22), and the second bracket (3) is equipped with a slider (31). The slider (31) is slidably connected to the second slide rail (22) to achieve a sliding connection between the first bracket (2) and the second bracket (3).

4. The insulation testing device for a battery pack according to claim 1, characterized in that: The first driving component (4) includes: A drive unit (41) is mounted on a second bracket (3); Gear (42), the drive member (41) is capable of driving gear (42) to rotate; A rack (43) is mounted on a first bracket (2), and the gear (42) and the rack (43) mesh with each other.

5. The insulation testing device for a battery pack according to claim 4, characterized in that: The driving component (41) is a geared motor, and the gear (42) is installed at the output end of the geared motor.

6. The insulation testing device for a battery pack according to claim 5, characterized in that: The second driving component (5) includes: A lifting structure (51) is mounted on a second bracket (3); The first cylinder (52) is mounted on the lifting structure (51), which is capable of driving the first cylinder (52) to move in the vertical direction; An insulation testing probe (53) is installed at the movable end of a first cylinder (52), which can drive the insulation testing probe (53) to move in a first direction and complete the insulation test.

7. The insulation testing device for a battery pack according to claim 6, characterized in that: The lifting structure (51) is a servo module.

8. The insulation testing device for a battery pack according to claim 1, characterized in that: The connection component (6) includes: A rod (61) is mounted on a first bracket (2). A slot (611) is provided on the rod (61). The external drive assembly (7) can be inserted into the slot (611) to complete the connection between the external drive assembly (7) and the rod (61). A baffle (62) is mounted on the rod (61), and the external drive assembly (7) can determine the position of the rod (61) by means of the baffle (62).

9. The insulation testing device for a battery pack according to claim 8, characterized in that: The external drive assembly (7) includes: Drive structure (71); The second cylinder (72) is mounted on the drive structure (71), which is capable of driving the second cylinder (72) to move along a first direction; Insert (73), which is installed on the movable end of the second cylinder (72) and can be inserted into the slot (611); A sensor (74) is mounted on a drive structure (71) and is capable of sensing the position of a baffle (62).

10. The insulation testing device for a battery pack according to claim 9, characterized in that: The drive structure (71) is a gear and rack transmission.

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