Battery cell detection device and power battery production line

Abstract

The utility model discloses a battery cell detection device and a power battery production line. The battery cell detection device comprises a rack and two groups of detection structures, each group of detection structures comprises a mounting seat, a locking part and a detection head, the mounting seat is mounted on the rack and can move in the direction close to or away from the other mounting seat, so that the distance between the two mounting seats is adjustable, the locking part is arranged between the mounting seat and the rack and can realize locking or unlocking of the mounting seat and the rack, and the detection head is mounted on the mounting seat. According to the scheme, the distance between the two detection heads can be adjusted according to requirements, the device is suitable for battery cells of various sizes, the detection stability is good, the practicability of the device is improved, operation is easy and convenient, the structure is simple, and cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery cell open circuit voltage detection equipment, and in particular to a battery cell detection device and a power battery production line. Background Art

[0002] OCV (open circuit voltage) is the open circuit voltage. The OCV test of the battery cell mainly measures the battery characteristics by pressing the probes connected to the voltage tester and the internal resistance tester on the positive and negative ears of the battery cell.

[0003] For example, patent CN 217901984 U discloses a battery cell detection device, in which when the battery cell moves to the bottom of the detection mechanism, the lifting device drives the first probe and the second probe to move downward, so that the first probe and the second probe are pressed against the two pole ears of the battery cell, and the open circuit voltage is detected by an OCV detector electrically connected to the two probes.

[0004] However, the distance between the two probes in this patent is fixed, and it can only be applied to battery cells of fixed size, which limits its use and its practicality needs to be improved. Utility Model Content

[0005] The purpose of the utility model is to overcome the above technical deficiencies, propose a battery cell detection device and a power battery production line, and solve the technical problem that the distance between the two probes in the prior art is fixed, and it can only be applied to batteries of fixed sizes, and the practicality needs to be improved.

[0006] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0007] In a first aspect, the utility model provides a battery cell detection device, comprising:

[0008] rack; and

[0009] Two groups of detection structures, each group of the detection structure includes a mounting seat, a locking portion and a detection head, the mounting seat is installed on the frame and can move in the direction of approaching and moving away from the other mounting seat, so that the distance between the two mounting seats is adjustable, the locking portion is arranged between the mounting seat and the frame, and can realize the locking or unlocking of the mounting seat and the frame, and the detection head is installed on the mounting seat.

[0010] In some embodiments, the mounting seat is provided with a locking hole, the frame is provided with a plurality of connecting screw holes, and the plurality of connecting screw holes are arranged at intervals along the movable direction of the mounting seat;

[0011] The locking portion is a locking bolt, which passes through the locking hole and is screwed into the connecting screw hole.

[0012] In some embodiments, the locking hole is extended along the movable direction of the mounting seat and can be connected to multiple connecting screw holes at the same time.

[0013] In some embodiments, the mounting base includes a fixing plate and an adjusting plate, the locking hole is formed on the fixing plate, the adjusting plate is connected to the fixing plate at an angle, and the adjusting plate can move in a direction close to and away from the frame;

[0014] The detection head is installed on the adjustment plate.

[0015] In some embodiments, the fixing plate includes a connecting plate and an extending plate, the locking hole is formed in the connecting plate, the extending plate is connected to the connecting plate and is arranged at an angle with the connecting plate and extends in a direction away from the frame, and the extending plate is provided with a matching hole in the direction away from the frame;

[0016] The adjustment plate is provided with an adjustment screw hole corresponding to the matching hole, and the mounting seat also includes an adjustment bolt, which passes through the matching hole and is screwed in the adjustment screw hole.

[0017] In some embodiments, one of the mounting seat and the frame is provided with a slide rail, and the other is provided with a slide groove corresponding to the slide rail, and the slide rail and the slide groove are extended along the movable direction of the mounting seat.

[0018] In some embodiments, the detection head includes an insulating seat, a probe and a fixing bolt. The insulating seat is connected to the mounting seat via a threaded connection, and the insulating seat is provided with a plug hole and a fixing screw hole connected to the plug hole. The plug hole passes through the insulating seat, the probe is inserted into the plug hole, and the fixing bolt is screwed into the fixing screw hole and pressed against the probe.

[0019] In some embodiments, the frame includes a frame body, a first movable seat, a second movable seat, a first driving unit and a second driving unit, the first movable seat is movably mounted on the frame body along a first direction, the second movable seat is movably mounted on the first movable seat along a second direction, the first direction intersects with the second direction, the first driving unit is disposed on the frame body to drive the first movable seat to move along the first direction, the second driving unit is mounted on the first movable seat to drive the second movable seat to move along the second direction, wherein the locking unit is disposed between the mounting seat and the second movable seat.

[0020] In some embodiments, the rack is provided with scale lines corresponding to the two mounting seats, and the scale lines are extended along the arrangement direction of the two mounting seats.

[0021] In a second aspect, the utility model further provides a power battery production line, which includes a battery cell detection device as described in any one of the above items.

[0022] Compared with the prior art, in the battery cell detection device provided by the utility model, before detection, the locking part is switched to a state where the mounting seat can move relative to the frame to adjust the distance between the two mounting seats. When the distance between the detection heads on the two mounting seats meets the distance between the tabs of the battery cell to be detected, the locking part is switched to a state where the mounting seat is locked on the frame to limit accidental movement of the mounting seat, ensure that the distance between the two detection heads is fixed, and improve detection stability. In this way, the present solution can adjust the distance between the two detection heads according to demand, is suitable for battery cells of various sizes, has good detection stability, improves the practicality of the device, is simple and convenient to operate, has a simple structure, and saves costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a battery cell detection device provided by an embodiment of the utility model;

[0024] Figure 2 yes Figure 1 Schematic diagram of the partial structure of the battery cell detection device;

[0025] Figure 3 yes Figure 2 A schematic diagram of the structure of the middle detection structure and the second movable seat;

[0026] Figure 4 yes Figure 3 Structural diagram of the middle mounting seat and the insulating seat;

[0027] Figure 5 yes Figure 4 Schematic diagram of the structure of the middle adjustment plate.

[0028] Description of reference numerals:

[0029] 1. Frame; 1a. Connecting screw hole; 11. Slide rail; 12. Frame; 13. First movable seat; 14. Second movable seat; 15. First driving unit; 16. Second driving unit; 2. Detection structure; 21. Mounting seat; 21a. Locking hole; 21b. Slide groove; 211. Fixing plate; 212. Adjusting plate; 212a. Adjusting screw hole; 213. Connecting plate; 214. Extension plate; 214a. Matching hole; 22. Detection head; 221. Insulating seat; 221a. Plug hole; 221b. Fixing screw hole; 222. Probe. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0031] In order to solve the technical problem that the distance between the two probes is fixed, the device can only be applied to battery cells of fixed sizes and its practicality needs to be improved, the utility model provides a battery cell detection device, which can adjust the distance between the two detection heads according to needs, is applicable to battery cells of various sizes, has good detection stability, improves the practicality of the device, is easy and convenient to operate, has a simple structure, and saves costs.

[0032] It should be noted that the battery cell detection device described in the present invention is used for but not limited to power battery production lines, etc. For the convenience of explanation, in the present invention, only the application of the battery cell detection device in a power battery production line is taken as an example for explanation, and the principle of applying the battery cell detection device to other types of equipment is essentially the same as the principle applied to the power battery production line, which will not be elaborated here.

[0033] See also Figure 1 and Figure 2 , Figure 1 and Figure 2 The schematic diagram of the structure of the battery cell detection device in one embodiment of the utility model comprises a frame 1 and two groups of detection structures 2; each group of detection structures 2 comprises a mounting seat 21, a locking portion and a detection head 22, the mounting seat 21 is mounted on the frame 1, and can move in the direction of approaching and moving away from another mounting seat 21, so that the distance between the two mounting seats 21 is adjustable, the locking portion is arranged between the mounting seat 21 and the frame 1, and can realize the locking or unlocking of the mounting seat 21 and the frame 1, and the detection head 22 is mounted on the mounting seat. Specifically, the locking portion can lock the mounting seat 21 to the frame 1, and can make the mounting seat 21 move relative to the frame 1 to approach and move away from another mounting seat 21.

[0034] In the battery cell detection device provided by the utility model, before detection, the locking part is switched to a state where the mounting seat 21 can move relative to the frame 1 to adjust the distance between the two mounting seats 21. When the distance between the detection heads 22 on the two mounting seats 21 meets the distance between the tabs of the battery cell to be detected, the locking part is switched to a state where the mounting seat 21 is locked on the frame 1 to limit accidental movement of the mounting seat 21, ensure that the distance between the two detection heads 22 is fixed, and improve detection stability. In this way, the present solution can adjust the distance between the two detection heads 22 according to demand, is suitable for battery cells of various sizes, has good detection stability, improves the practicality of the device, is simple and convenient to operate, has a simple structure, and saves costs.

[0035] In one embodiment, see Figure 3 and Figure 4 The mounting seat 21 is provided with a locking hole 21a, and the frame 1 is provided with a plurality of connecting screw holes 1a, which are arranged at intervals along the movable direction of the mounting seat 21; the locking part is a locking bolt, which passes through the locking hole 21a and is screwed into the connecting screw hole 1a.

[0036] In this embodiment, a plurality of connecting screw holes 1a are arranged at intervals along the movable direction of the mounting seat 21, and then the locking bolts are locked in the corresponding locking holes 21a and the connecting screw holes 1a, so that the distance between the two mounting seats 21 can be adjusted while effectively limiting the mounting seat 21. The structure is simple and reliable, and the operation is simple.

[0037] In one embodiment, the locking hole 21a is extended along the movable direction of the mounting seat 21 and can be connected to multiple connecting screw holes 1a at the same time. Specifically, one of the mounting seat 21 and the frame 1 is provided with a slide rail, and the other corresponding to the slide rail is provided with a slide groove, and the slide rail and the slide groove are extended along the movable direction of the mounting seat 21.

[0038] In this embodiment, the mounting seat 21 can be first moved along the extension direction of the slide rail so that the distance between the two mounting seats 21 is adjusted to a preset distance, and then the mounting seat 21 is locked by the locking bolt. In this solution, since the locking hole 21a is set as an elongated hole, and the slide rail and the slide groove are correspondingly set, it can be ensured that when the distance between the two mounting seats 21 is adjusted to any value, the locking hole 21a is connected to the connecting screw hole 1a, which is convenient for the locking bolt to limit, so that the distance adjustment between the two mounting seats 21 is more precise and the flexibility is improved. It should be noted that in this solution, the extension direction of the slide groove and the movable direction of the mounting seat 21 are horizontal directions, and the slide rail 11 is provided on the frame 1, and the slide groove 21b is formed on the mounting seat 21.

[0039] In one embodiment, the mounting base 21 includes a fixing plate 211 and an adjustment plate 212, the locking hole 21a is formed in the fixing plate 211, the adjustment plate 212 is connected to the fixing plate 211 at an angle, and the adjustment plate 212 can move in a direction close to and away from the frame 1; the detection head 22 is installed on the adjustment plate 212.

[0040] In this embodiment, the distance between the adjustment plate 212 and the frame 1 can be changed, that is, the distance between the detection head 22 and the frame 1 can be adjusted, so that the position of the detection head 22 in the thickness direction of the battery cell can be changed, which is suitable for battery cells of different thicknesses and further improves the practicability of the detection device.

[0041] In one embodiment, see Figure 4 and Figure 5The fixing plate 211 includes a connecting plate 213 and an extending plate 214, a locking hole 21a is formed in the connecting plate 213, the extending plate 214 is connected to the connecting plate 213, and is arranged at an angle with the connecting plate 213, and extends in a direction away from the frame 1, and the extending plate 214 is provided with a matching hole 214a in the direction away from the frame 1; the adjusting plate 212 is provided with an adjusting screw hole 212a corresponding to the matching hole 214a, and the mounting seat 21 also includes an adjusting bolt, which passes through the matching hole 214a and is screwed in the adjusting screw hole 212a.

[0042] In this embodiment, the distance between the adjustment plate 212 and the frame 1 is adjusted by loosening or tightening the adjustment bolts, and the operation is simple and convenient. It should be noted that in this embodiment, there are two adjustment screw holes 212a and two matching holes 214a, and the two adjustment screw holes 212a are spaced apart along the movable direction of the mounting seat 21, and correspondingly, there are two groups of adjustment bolts.

[0043] In one embodiment, the detection head 22 includes an insulating seat 221, a probe 222 and a fixing bolt. The insulating seat 221 is connected to the mounting seat 21 via a screw connection, and the insulating seat 221 is provided with a plug hole 221a and a fixing screw hole 221b connected to the plug hole 221a. The plug hole 221a passes through the insulating seat 221, the probe 222 is inserted into the plug hole 221a, and the fixing bolt is screwed into the fixing screw hole 221b and pressed against the probe 222.

[0044] In this embodiment, the insulating seat 221 is connected to the mounting seat 21 through a screw connection so that the insulating seat 221 can be replaced when it is severely worn. At the same time, the probe 222 inserted into the plug hole 221a is limited by a fixing bolt to facilitate replacement of the probe 222, and probes 222 of various models and sizes can be assembled, further improving practicality.

[0045] In one embodiment, the frame 1 includes a frame body 12, a first movable seat 13, a second movable seat 14, a first driving unit 15 and a second driving unit 16. The first movable seat 13 is movably mounted on the frame body 12 along a first direction, and the second movable seat 14 is movably mounted on the first movable seat 13 along a second direction. The first direction intersects with the second direction. The first driving unit 15 is disposed on the frame body 12 to drive the first movable seat 13 to move along the first direction. The second driving unit 16 is mounted on the first movable seat 13 to drive the second movable seat 14 to move along the second direction, wherein the locking unit is disposed between the mounting seat 21 and the second movable seat 14.

[0046] In this embodiment, the position of the probe 222 can be adjusted by driving the first movable seat 13 and the second movable seat 14 to move, so that the device is more flexible when detecting the battery cell. It should be noted that in this solution, the first driving part 15 and the second driving part 16 are in the form of linear motors, and the first direction is horizontal and consistent with the moving direction of the mounting seat 21, and the second direction is vertical.

[0047] In addition, the frame 1 is provided with scale lines corresponding to the two mounting seats 21, and the scale lines are extended along the arrangement direction of the two mounting seats 21. Specifically, the scale lines are provided on the second movable seat 14, so that the distance between the two mounting seats 21 can be adjusted according to the scale lines to meet the spacing of the battery cell tabs to be tested, thereby improving convenience.

[0048] In addition, the utility model also provides a power battery production line, which includes a cell detection device as described in any one of the above. It should be noted that the detailed structure of the cell detection device of the power battery production line can refer to the embodiment of the cell detection device, which will not be repeated here; since the cell detection device is used in the power battery production line of the utility model, the embodiment of the power battery production line of the utility model includes all technical solutions of all embodiments of the cell detection device, and the technical effects achieved are also exactly the same, which will not be repeated here.

[0049] In order to better understand the present invention, the following Figures 1 to 5 The technical solution of the utility model is described in detail:

[0050] Before testing, loosen the locking bolt to disengage the connecting screw hole 1a, then slide the mounting seat 21 along the extension direction of the slide rail 11 to adjust the distance between the two mounting seats 21. After the distance between the two mounting seats 21 is adjusted to a preset value, tighten the locking bolt to fix the mounting seat 21 on the frame 1 to prevent the mounting seat 21 from shaking during the testing process. Then, adjust the first movable seat 13 and the second movable seat 14 to move through the first driving unit 15 and the second driving unit 16, so that the probe 222 on the mounting seat 21 is pressed against the pole ear of the battery cell for testing.

[0051] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A battery cell detection device, characterized in that: include: frame; and Two groups of detection structures, each group of the detection structure includes a mounting seat, a locking portion and a detection head, the mounting seat is installed on the frame and can move in the direction of approaching and moving away from the other mounting seat, so that the distance between the two mounting seats is adjustable, the locking portion is arranged between the mounting seat and the frame, and can realize the locking or unlocking of the mounting seat and the frame, and the detection head is installed on the mounting seat.

2. The battery cell detection device according to claim 1, characterized in that: The mounting seat is provided with a locking hole, and the frame is provided with a plurality of connecting screw holes, and the plurality of connecting screw holes are arranged at intervals along the movable direction of the mounting seat; The locking portion is a locking bolt, which passes through the locking hole and is screwed into the connecting screw hole.

3. The battery cell detection device according to claim 2, characterized in that: The locking hole is extended along the movable direction of the mounting seat and can be connected to a plurality of the connecting screw holes at the same time.

4. The battery cell detection device according to claim 2, characterized in that: The mounting seat comprises a fixing plate and an adjusting plate, the locking hole is formed in the fixing plate, the adjusting plate is connected to the fixing plate at an angle, and the adjusting plate can move in a direction close to and away from the frame; The detection head is installed on the adjustment plate.

5. The battery cell detection device according to claim 4, characterized in that: The fixing plate includes a connecting plate and an extending plate, the locking hole is formed in the connecting plate, the extending plate is connected to the connecting plate and is arranged at an angle with the connecting plate and extends in a direction away from the frame, and the extending plate is provided with a matching hole in the direction away from the frame; The adjustment plate is provided with an adjustment screw hole corresponding to the matching hole, and the mounting seat also includes an adjustment bolt, which passes through the matching hole and is screwed in the adjustment screw hole.

6. The battery cell detection device according to any one of claims 1 to 5, characterized in that: One of the mounting seat and the frame is provided with a slide rail, and the other one is provided with a slide groove corresponding to the slide rail. The slide rail and the slide groove are extended along the movable direction of the mounting seat.

7. The battery cell detection device according to claim 1, characterized in that: The detection head includes an insulating seat, a probe and a fixing bolt. The insulating seat is connected to the mounting seat via a screw connection, and the insulating seat is provided with an insertion hole and a fixing screw hole connected to the insertion hole. The insertion hole passes through the insulating seat, the probe is inserted into the insertion hole, and the fixing bolt is screwed into the fixing screw hole and pressed against the probe.

8. The battery cell detection device according to claim 1, characterized in that: The frame includes a frame body, a first movable seat, a second movable seat, a first driving part and a second driving part. The first movable seat is movably mounted on the frame body along a first direction. The second movable seat is movably mounted on the first movable seat along a second direction. The first direction intersects with the second direction. The first driving part is arranged on the frame body to drive the first movable seat to move along the first direction. The second driving part is installed on the first movable seat to drive the second movable seat to move along the second direction. The locking part is arranged between the mounting seat and the second movable seat.

9. The battery cell detection device according to claim 1, characterized in that: The frame is provided with scale lines corresponding to the two mounting seats, and the scale lines are extended along the arrangement direction of the two mounting seats.

10. A power battery production line, characterized in that: Comprising a battery cell detection device as described in any one of claims 1-9.

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