Automatic switching device for pole probes of battery module

Abstract

The utility model discloses an automatic switching device for pole probes of a battery module, which belongs to the field of battery modules and comprises a frame, a support plate is fixedly mounted on the inner wall of the frame, a detection component is fixedly mounted at the top of the support plate, a linear slide rail is fixedly mounted on the inner wall of the frame, a feeding plate is slidably mounted outside the linear slide rail, and a probe is mounted on the feeding plate. And a shrinkage assembly is fixedly mounted in the feeding plate, and a bearing table is fixedly mounted at the top of the shrinkage assembly. The device has the beneficial effects that the contraction assembly is arranged to be connected with the bearing table, the bearing table is used for mounting various battery cell pole columns, and when the first electric cylinder pushes the detection probe to move to be attached to the battery cell pole columns, the contraction assembly is continuously pressed and contracted at the moment; and in the gradual descending process of the bearing table, the pressing plate moves downwards and is finally attached to the contact type sensor, and after the contact type sensor sends out an electric signal, the first electric cylinder stops moving.

Description

Technical Field

[0001] The utility model relates to the field of battery modules, in particular to an automatic switching device for battery module pole probes. Background Art

[0002] The new energy industry is developing rapidly, and market demand for batteries is growing. A battery module is a component in a battery system, typically consisting of several cells, connectors, a battery management system, and a housing. It provides higher voltage and capacity, making it crucial. Insulation and voltage withstand testing of battery modules is an essential step in the module production process. Existing workstations typically perform insulation and voltage withstand testing after the modules are stacked and shaped and pressure-maintained. After stacking, probes on either side of the station, perpendicular to the forward direction, contact the cell terminals and conduct a check to ensure the module's insulation and high-voltage performance are intact. Existing insulation and voltage withstand testing stations can only accommodate modules with one cell height. When producing modules with different cell sizes, the probes cannot directly connect to the terminals due to varying terminal heights, making testing impossible. To accommodate different terminal heights, the workstation would need to be modified, a costly, challenging, time-consuming, and inefficient project, making it unsuitable for flexible production lines.

[0003] Announcement No. CN218583954U discloses a tool for measuring the height of battery cell poles. Before detecting the height of the battery cell poles, the tool for measuring the height of the battery cell poles needs to first place a standard battery cell block between the fixed plate and the movable plate, start the cylinder, and use the cylinder to push the movable plate to move the standard battery cell block on the support plate, so that the two poles of the standard battery cell block are in close contact with the probes of the two dial indicators installed on the side plates of the support plate. In summary, an important condition for testing in the application document is to select a standard battery cell block, so it is difficult to perform adaptive testing on battery cell blocks of different sizes, and the rigid contact method is also prone to damage, so there is room for improvement. Utility Model Content

[0004] In order to overcome the problem in the prior art that the insulation withstand voltage test station can only adapt to modules of one specification height, the utility model provides a battery module pole probe automatic switching device, comprising a frame, a support plate fixedly mounted on the inner wall of the frame, a detection assembly fixedly mounted on the top of the support plate, a linear slide fixedly mounted on the inner wall of the frame, a feed plate slidably mounted on the outside of the linear slide, a contraction assembly fixedly mounted on the inside of the feed plate, a support platform fixedly mounted on the top of the contraction assembly, and driven assemblies fixedly mounted on both the left and right ends of the support platform;

[0005] The detection assembly includes a mounting frame, which is fixedly mounted on the top of the support plate, a first electric cylinder is fixedly mounted inside the mounting frame, a connecting frame is fixedly mounted on the bottom of the first electric cylinder, two hanging arms are fixedly mounted on the top of the connecting frame, a second electric cylinder is fixedly mounted on opposite sides of the two hanging arms, and a detection probe is fixedly mounted on the inner wall of the connecting frame;

[0006] The driven assembly includes a pressing plate, which is fixedly installed on the left and right ends of the supporting platform. Flexible rubber pads are provided at the bottom of the two pressing plates, and a limiting ring is fixedly installed at one end of the two pressing plates away from the supporting platform.

[0007] Preferably, two limiting sleeve rods are fixedly installed on the top of the feeding plate.

[0008] The limiting sleeve rod is used to adapt to the limiting sleeve ring to limit the operating rules of the support platform.

[0009] Preferably, the two limiting collars are movably mounted on the outside of the two limiting sleeve rods.

[0010] The limiting purpose is achieved by installing the limiting collar on the outside of the limiting sleeve rod.

[0011] Preferably, the contraction assembly includes a spring seat, and the spring seat is fixedly installed inside the feed plate, a contraction spring is fixedly installed inside the spring seat, and the top of the contraction spring is fixedly connected to the bottom of the support platform.

[0012] The contraction spring can contract when under pressure, so that the support platform and the battery cell pole on the top are not directly under pressure, thereby avoiding the possibility of damage caused by rigid contact.

[0013] Preferably, an arc-shaped groove is provided on the top of the supporting platform.

[0014] Preferably, two contact sensors are fixedly mounted on the top of the feeding plate.

[0015] The contact sensor is used to cooperate with the pressing plate for monitoring purposes to avoid the problem of damage to the detection probe or the battery terminal due to overextension of the first electric cylinder.

[0016] Preferably, the two contact sensors are located directly below the two pressing plates.

[0017] Preferably, a controller panel is fixedly mounted on the top of the rack.

[0018] Beneficial effects:

[0019] The beneficial effects produced by adopting the technical solution of this utility model are as follows:

[0020] (1) The support platform is connected by setting a contraction component, which is used to install various types of battery poles. When the first electric cylinder pushes the detection probe to move and fit the battery pole, the contraction component is continuously compressed and contracted. As the support platform gradually descends, the pressing plate will also move downward and finally fit the contact sensor. After the contact sensor sends an electrical signal, the first electric cylinder stops moving, thereby ensuring that the detection probe under the control of the first electric cylinder can adapt to battery poles of various height specifications, thereby avoiding the problem that the entire base station can only detect battery poles of one specification, or simply relying on the displacement parameters input in advance to adapt to battery poles of different heights. There is no need to modify the workstation, reducing project costs and detection difficulty, and being able to meet the needs of flexible production of the production line.

[0021] (2) The second electric cylinder is installed on the left and right sides of the battery cell pole through the crane arm. After the height of the battery cell pole is adjusted, the two second electric cylinders are pushed in opposite directions and fit with the battery cell pole, so that the battery cell pole is firmly positioned above the support platform and fits with the detection probe, avoiding the problem of offset of the fitting position of the battery cell pole and the detection probe, thereby improving the accuracy of the detection and improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 This is a structural side view of the frame of the utility model;

[0025] Figure 3 It is a structural sectional view of the feeding plate of the utility model.

[0026] In the figure: 1. Frame; 2. Support plate; 3. Detection assembly; 30. Mounting frame; 31. First electric cylinder; 32. Hanging arm; 34. Connecting frame; 35. Second electric cylinder; 4. Detection probe; 5. Linear guide rail; 6. Feed plate; 61. Limit sleeve; 7. Contact sensor; 8. Retraction assembly; 81. Spring seat; 82. Retraction spring; 9. Follower assembly; 91. Press plate; 92. Limit sleeve; 10. Support platform; 11. Controller panel. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] This embodiment is adopted. The specific implementation is as follows:

[0029] like Figures 1 to 3 As shown, a battery module pole probe automatic switching device, in this embodiment 1, the shape of the said suspension arm 32 is "L"-shaped, and two second electric cylinders 35 are set on the left and right sides of the connection frame 34 through the two suspension arms 32. When testing, the battery cell pole is first placed on the support platform 10, and the first electric cylinder 31 is started at the same time to drive the connection frame 34 and the detection probe 4 to fit the top of the battery cell pole. After the height of the battery cell pole is adapted, the two second electric cylinders 35 are moved in opposite directions so that both sides of the battery cell pole are also firmly clamped, thereby ensuring that the detection probe 4 can adapt to battery cell poles of different specifications for testing;

[0030] It should be noted that an arc-shaped groove is provided above the supporting platform 10 for preliminary positioning of the cell pole, ensuring that the cell pole can be located just below the detection probe 4, thereby avoiding the problem of contact surface deviation between the detection probe 4 and the cell pole.

[0031] like Figures 1 to 3 As shown, a battery module pole probe automatic switching device, in this embodiment 2, a driven component 9 is installed on both ends of the supporting platform 10, and a contact sensor 7 is installed above the feeding plate 6. When the first electric cylinder 31 pushes the detection probe 4 to move downward and contact the battery cell pole, the contraction component 8 can be deformed, so the detection probe 4 and the battery cell pole will not be directly subjected to force. The pressure is borne by the contraction component 8 and then contracts and deforms. At the same time, the pressing plate 91 gradually descends and approaches the contact sensor 7. After the controller panel 11 receives the electrical signal, the first electric cylinder 31 stops working. At this time, the battery cell pole is in full contact with the detection probe 4 and can be detected. The flexible contact method avoids the problem of over-extension of the first electric cylinder 31 due to different sizes during rigid contact, thereby damaging the detection probe 4 or the battery cell pole. It can adapt to battery cell poles of different heights for detection and has good reliability.

[0032] In addition, the first electric cylinder 31 , the second electric cylinder 35 , the contact sensor 7 and the linear guide rail 5 are all electrically connected to the controller panel 11 , and the controller panel 11 is used to operate the start and stop of the electrically connected devices.

[0033] like Figures 1 to 3 As shown, a battery module pole probe automatic switching device, in this embodiment 3, the pressing plate 91 is connected to the limiting ring 92 and the supporting platform 10, and the limiting ring 92 is movably installed on the outside of the limiting sleeve 61, so when the supporting platform 10 moves downward, it will move vertically along the limiting sleeve 61 due to the influence of the limiting ring 92, ensuring that the supporting platform 10 and the top and battery cell pole are always consistent with the falling direction of the detection probe 4.

[0034] Working principle:

[0035] First, place the battery cell pole on the top of the support platform 10, and preliminarily position it through the arc groove. At the same time, the linear slide rail 5 drives the support plate 10 to move toward the direction close to the detection probe 4. After moving to the bottom of the detection probe 4, the first electric cylinder 31 pushes the connecting frame 34 and the detection probe 4 downward to fit the battery cell pole, and squeezes the shrinkage component 8 to shrink during the continuous downward movement, and finally makes the pressing plate 91 fit with the contact sensor 7. After the contact sensor 7 sends an electrical signal, the first electric cylinder 31 stops working. At this time, the second electric cylinders 35 on both sides of the battery cell pole move toward the battery cell pole and fit together to form a fixed position. After the battery cell pole is completely fixed, the detection can begin. It can adapt to battery cell poles of various heights and widths, and the flexible contact feature can avoid damage and bending of the detection probe 4 and the battery cell pole.

[0036] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A battery module pole probe automatic switching device, characterized in that: The invention comprises a frame (1), a support plate (2) is fixedly mounted on the inner wall of the frame (1), a detection assembly (3) is fixedly mounted on the top of the support plate (2), a linear slide rail (5) is fixedly mounted on the inner wall of the frame (1), a feed plate (6) is slidably mounted on the outside of the linear slide rail (5), a contraction assembly (8) is fixedly mounted on the inside of the feed plate (6), a support platform (10) is fixedly mounted on the top of the contraction assembly (8), and driven assemblies (9) are fixedly mounted on both left and right ends of the support platform (10); The detection assembly (3) includes a mounting frame (30), the mounting frame (30) is fixedly mounted on the top of the support plate (2), a first electric cylinder (31) is fixedly mounted inside the mounting frame (30), a connecting frame (34) is fixedly mounted on the bottom of the first electric cylinder (31), two hanging arms (32) are fixedly mounted on the top of the connecting frame (34), a second electric cylinder (35) is fixedly mounted on opposite sides of the two hanging arms (32), and a detection probe (4) is fixedly mounted on the inner wall of the connecting frame (34); The driven assembly (9) includes a pressing plate (91), which is fixedly mounted on the left and right ends of the supporting platform (10), and a flexible rubber pad is provided at the bottom of the two pressing plates (91), and a limiting ring (92) is fixedly mounted on one end of the two pressing plates (91) away from the supporting platform (10).

2. The battery module pole probe automatic switching device according to claim 1, characterized in that: Two limiting sleeve rods (61) are fixedly mounted on the top of the feeding plate (6).

3. The battery module pole probe automatic switching device according to claim 2, characterized in that: The two limiting collars (92) are movably mounted on the outside of the two limiting sleeve rods (61).

4. The battery module pole probe automatic switching device according to claim 1, characterized in that: The contraction assembly (8) includes a spring seat (81), and the spring seat (81) is fixedly installed inside the feeding plate (6). A contraction spring (82) is fixedly installed inside the spring seat (81), and the top of the contraction spring (82) is fixedly connected to the bottom of the supporting platform (10).

5. The battery module pole probe automatic switching device according to claim 4, characterized in that: An arc-shaped groove is provided on the top of the supporting platform (10).

6. The battery module pole probe automatic switching device according to claim 1, characterized in that: Two contact sensors (7) are fixedly mounted on the top of the feeding plate (6).

7. The battery module pole probe automatic switching device according to claim 6, characterized in that: The two contact sensors (7) are located directly below the two pressing plates (91).

8. The battery module pole probe automatic switching device according to claim 7, characterized in that: A controller panel (11) is fixedly mounted on the top of the frame (1).

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