Battery pressure maintaining tool

Abstract

The utility model discloses a battery pressure maintaining tool which comprises a pressing plate and two chucks, the pressing plate is provided with two side edges which are arranged back to back, and the two side edges of the pressing plate are respectively provided with an assembling rod in a protruding mode. The two chucks are installed on the assembling rods on the two side edges of the pressing plate respectively, each chuck comprises a clamping plate and a movable seat, the movable seats are movably arranged on the assembling rods, the movable seats of the two chucks are oppositely arranged, the clamping plate is arranged on the surface, facing the movable seat of the other chuck, of the movable seat of one chuck in a protruding mode, and the clamping plate is arranged on the surface of the movable seat of the other chuck. The clamping plates of the two chucks and the pressing plate are arranged at intervals and define an assembly space, and the assembly space is used for installing a to-be-detected battery. According to the utility model, deformation caused by bulging of the top cover in charging detection is avoided, and the accuracy of air tightness detection is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of batteries, and particularly relates to a battery pressure maintaining tool. Background Art

[0002] During the battery manufacturing process, the battery must be tested for air tightness. Specifically, the detector is connected to the battery to be tested, and the gas source is adjusted to the set pressure through the pressure regulating valve to complete the inflation process. After inflation, the detector detects the pressure change of the battery and obtains the result of the air tightness test based on whether the pressure drop exceeds the set threshold. In general, the pressure is calculated based on the Clar-Perron equation PV=nRT, so the volume of the battery is the key factor affecting the battery pressure test. However, during the charging test, the top cover of the battery is easily bulged due to the influence of the inflation airflow, which causes the volume of the battery to change, thereby affecting the battery pressure test results, and the accuracy of the air tightness test cannot be guaranteed. Utility Model Content

[0003] The main purpose of the utility model is to provide a battery pressure-maintaining tool to prevent the top cover of the battery from swelling and deforming due to the influence of the inflation airflow, thereby ensuring the accuracy of airtightness detection.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a battery pressure maintaining tool, comprising:

[0005] A pressing plate, the pressing plate having two side edges arranged back to back, and the two side edges of the pressing plate are respectively provided with assembly rods protruding therefrom; and

[0006] Two chucks are respectively installed on the assembly rods on both sides of the pressure plate, the chucks include a clamping plate and a movable seat, the movable seat is movably arranged on the assembly rod, the movable seats of the two chucks are arranged opposite to each other, and a clamping plate is protruding from the surface of the movable seat of one chuck facing the movable seat of the other chuck, so that the clamping plates of the two chucks are spaced apart from the pressure plate and enclosed to form an assembly space, and the assembly space is used to install the battery to be tested.

[0007] Optionally, the splint includes a side plate and a bottom plate, the surfaces of the two side plates are arranged opposite to each other, the surface of one side plate facing away from the other side plate is arranged on the movable seat, the side edges of the side plates are protruding from the surface of the bottom plate, and the side plates and bottom plates of the two splints are enclosed with the pressure plate to form the assembly space.

[0008] Optionally, the movable seat is provided with a plurality of assembly holes, and the plurality of assembly holes are distributed along a direction opposite to the bottom plate and the pressure plate, and the side plate is detachably mounted on the movable seat through one of the assembly holes.

[0009] Optionally, the movable seat is provided with an assembly groove, the assembly groove is extended along a direction opposite to the bottom plate and the pressure plate, and the assembly groove forms a plurality of the assembly holes.

[0010] Optionally, the movable seat includes a sleeve portion and a mounting portion, the sleeve portion is movably mounted on the assembly rod, the sleeve portion moves along the length direction of the assembly rod, and the sleeve portion is connected to the clamping plate through the mounting portion so that the clamping plate moves along the length direction of the assembly rod with the sleeve portion.

[0011] Optionally, the sleeve portion is movably connected to a first nut, and the first nut movably passes through the sleeve portion and abuts against the assembly rod, so that the sleeve portion is installed on the assembly rod.

[0012] Optionally, a slide rail is formed on the outer side of the sleeve portion, the slide rail is arranged along the length direction of the sleeve portion, the mounting portion is movably mounted on the slide rail, the mounting portion moves along the length direction of the slide rail, and the clamping plate is arranged on the mounting portion so that the clamping plate moves along the length direction of the sleeve portion with the mounting portion.

[0013] Optionally, the mounting portion is movably connected with a second nut, and the second nut movably passes through the mounting portion and abuts against the sleeve portion, so that the mounting portion is installed on the sleeve portion.

[0014] Optionally, the pressing plate includes a first pressing plate and a second pressing plate connected side by side, the first pressing plate and the second pressing plate are respectively provided with the assembly rods protruding from their back-to-back sides, and the clamping plates of the two chucks, the first pressing plate and the second pressing plate enclose the assembly space.

[0015] Optionally, a plurality of through holes are provided on the surface of the pressing plate, and the plurality of through holes are distributed on the pressing plate at intervals.

[0016] In the technical solution of the utility model, the pressing plate has two side edges arranged back to back, and the two side edges of the pressing plate are respectively provided with assembly rods, and two chucks are respectively installed on the assembly rods on the two side edges of the pressing plate, and the chucks include a clamping plate and a movable seat, and the movable seat is movably arranged on the assembly rods, and the movable seats of the two chucks are arranged relatively to each other, and a clamping plate is convexly provided on the surface of the movable seat of one chuck facing the movable seat of the other chuck, so that the clamping plates of the two chucks are spaced apart from the pressing plate and enclosed to form an assembly space, so that the battery to be tested installed in the assembly space is supported by the clamping plate and pressed under the pressing plate, so that the top cover of the battery is pressed by the pressing plate, and the top cover is prevented from bulging and deforming during the charging test, thereby ensuring the constant volume of the battery before and after inflation, thereby not affecting the battery pressure test result and ensuring the accuracy of the airtightness test. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0018] Figure 1 This is a structural schematic diagram of an embodiment of the pressure-maintaining tooling of the utility model;

[0019] Figure 2 is a schematic diagram of the structure of the chuck;

[0020] Figure 3 It is the front view of the chuck;

[0021] In the figure: 1000-battery pressure maintaining tooling, 100-pressure plate, 110-first pressure plate, 130-second pressure plate, 110a-through hole, 300-assembly rod, 500-chuck, 501-first nut, 502-second nut, 510-movable seat, 510a-assembly groove, 511-sleeve part, 511a-slide rail, 513-installation part, 530-clamp, 531-side plate, 533-bottom plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0024] See also Figures 1 to 3As shown, in one embodiment of the utility model, a battery pressure-maintaining tool 1000 includes: a pressing plate 100 and two chucks 500, the pressing plate 100 has two side edges arranged back to back, and the two side edges of the pressing plate 100 are respectively provided with assembly rods 300; the two chucks 500 are respectively installed on the assembly rods 300 on the two side edges of the pressing plate 100, the chucks 500 include a clamping plate 530 and a movable seat 510, the movable seat 510 is movably arranged on the assembly rod 300, the movable seats 510 of the two chucks 500 are arranged opposite to each other, and the surface of the movable seat 510 of one chuck 500 facing the movable seat 510 of the other chuck 500 is provided with a clamping plate 530, so that the clamping plates 530 of the two chucks 500 are spaced apart from the pressing plate 100 and enclosed to form an assembly space, and the assembly space is used to install batteries.

[0025] In the technical solution of the utility model, the pressing plate 100 has two side edges arranged back to back, and the two side edges of the pressing plate 100 are respectively convexly provided with assembly rods 300, and the two chucks 500 are respectively installed on the assembly rods 300 on the two side edges of the pressing plate 100, and the chucks 500 include a clamping plate 530 and a movable seat 510, and the movable seat 510 is movably arranged on the assembly rod 300. The movable seats 510 of the two chucks 500 are arranged opposite to each other, and the movable seat 510 of one chuck 500 faces the surface of the movable seat 510 of the other chuck 500. A clamping plate 530 is convexly provided on the surface, so that the clamping plates 530 of the two clamps 500 are spaced apart from and enclosed with the pressure plate 100 to form an assembly space. In this way, the battery to be tested installed in the assembly space is supported by the clamping plate 530 and pressed under the pressure plate 100. In this way, the top cover of the battery is pressed by the pressure plate 100, and the top cover is prevented from bulging and deforming during the charging test, thereby ensuring the constant volume of the battery before and after inflation, thereby not affecting the battery pressure test result and ensuring the accuracy of the airtightness test.

[0026] It should be noted that the movable seat 510 in the utility model can be slidably connected to the assembly rod 300, or can be connected to the assembly rod 300 by a slot. Of course, the assembly rod 300 can also be a telescopic rod, as long as the movable seat 510 can be moved along the length direction of the assembly rod 300. The utility model drives the clamp 500 to move along the length direction of the assembly rod 300 through the movable seat 510 so that the clamps 530 of the two clamps 500 are close to each other or away from each other, thereby clamping or loosening the battery. When performing inflation detection, the two clamps 500 approach each other through the movable seat 510 and form an enclosed space with the pressure plate 100, the battery is placed in the enclosed space formed, the clamps 530 of the two clamps 500 are supported on the battery, and the pressure plate 100 is pressed on the top cover of the battery to avoid the top cover of the battery from bulging; when the inflation detection is completed, the two clamps 500 are away from each other through the movable seat 510, and the clamps 530 of the two clamps 500 are loosened from the battery. In addition, the assembly rods 300 protruding from the two side edges of the pressure plate 100 are an integrated structure, and the two ends of the rod body of the integrated structure protrude from the two side edges of the pressure plate 100 to form two assembly rods 300. On the basis of realizing active clamping, it is convenient for processing and installation and reduces the processing and manufacturing costs.

[0027] See also Figures 1 to 3 As shown, in one embodiment of the utility model, the clamping plate 530 includes a side plate 531 and a bottom plate 533, the surfaces of the two side plates 531 are arranged opposite to each other, the surface of the one side plate 531 facing away from the other side plate 531 is arranged on the movable seat 510, the side edge of the side plate 531 is convexly arranged on the surface of the bottom plate 533, and the side plates 531 and the bottom plate 533 of the two clamping plates 530 are enclosed with the pressing plate 100 to form an assembly space. It should be noted that in the embodiment of the utility model, the side plates 531 of the two clamps 500 are clamped on the side wall of the battery, and the battery is clamped between the side plates 531 of the two clamps 500, so that the pressing plate 100 is stably pressed on the top cover of the battery while enhancing the stability of the battery assembly, thereby effectively avoiding the deformation of the battery and the change in volume, thereby ensuring the accuracy of the airtightness detection.

[0028] See also Figures 1 to 3 As shown, in one embodiment of the utility model, the movable seat 510 is provided with a plurality of assembly holes, and the plurality of assembly holes are distributed along the direction opposite to the bottom plate 533 and the pressing plate 100, and the side plate 531 is detachably mounted on the movable seat 510 through an assembly hole. It should be noted that the utility model is provided with a plurality of assembly holes distributed along the direction opposite to the bottom plate 533 and the pressing plate 100, and the side plate 531 is mounted to the corresponding assembly holes according to the height of the corresponding battery, thereby adjusting the gap distance between the bottom plate 533 and the pressing plate 100, so as to match the assembly of the battery of the corresponding height, so as to be suitable for the height inflation detection of batteries of different heights.

[0029] See also Figures 1 to 3As shown, in one embodiment of the utility model, the movable seat 510 is provided with an assembly groove 510a, which is extended in the direction opposite to the bottom plate 533 and the pressing plate 100, and the assembly groove 510a forms a plurality of assembly holes. It should be noted that the utility model embodiment avoids multiple positioning drillings by providing an assembly groove 510a extending in the direction opposite to the bottom plate 533 and the pressing plate 100, and the assembly groove 510a forms a plurality of assembly holes, thereby simplifying production and processing. In this way, the bottom plate 533 can be detachably mounted on the movable seat 510 through the assembly groove 510a by means of bolts and nuts, so as to facilitate the inflation detection of the height of batteries of different heights.

[0030] See also Figures 1 to 3 As shown, in one embodiment of the utility model, the movable seat 510 includes a sleeve portion 511 and a mounting portion 513, the sleeve portion 511 is movably mounted on the assembly rod 300, the sleeve portion 511 moves along the length direction of the assembly rod 300, and the sleeve portion 511 is connected to the clamping plate 530 through the mounting portion 513, so that the clamping plate 530 moves along the length direction of the assembly rod 300 with the sleeve portion 511. It should be noted that in the embodiment of the utility model, the clamping plate 530 is supported on the battery or released from the battery through the movement of the sleeve portion 511 along the length direction of the assembly rod 300, thereby achieving the clamping and loosening of the battery.

[0031] See also Figures 1 to 3 As shown, in one embodiment of the utility model, the sleeve portion 511 is movably connected with the first nut 501, and the first nut 501 is movably passed through the sleeve portion 511 and abuts against the assembly rod 300, so that the movable seat 510 is installed on the assembly rod 300. It should be noted that when positioning is required, the first nut 501 is rotated to make the first nut 501 pass through the sleeve portion 511 and abut against the assembly rod 300, so that the sleeve portion 511 is positioned and locked on the assembly rod 300, which is suitable for the inflation detection of the battery; when adjustment is required, the first nut 501 is rotated to separate the first nut 501 abutting against the assembly rod 300 from the assembly rod 300, so that the sleeve portion 511 can be slid to adjust the position of the sleeve portion 511 on the assembly rod 300, which is suitable for the assembly of batteries of different widths.

[0032] See also Figures 1 to 3As shown, in one embodiment of the utility model, a slide rail 511a is formed on the outer side of the sleeve portion 511, and the slide rail 511a is arranged along the length direction of the sleeve portion 511. The mounting portion 513 is movably mounted on the slide rail 511a, and the mounting portion 513 moves along the length direction of the slide rail 511a. The clamping plate 530 is arranged on the mounting portion 513, so that the clamping plate 530 moves along the length direction of the sleeve portion 511 with the mounting portion 513. It should be noted that the embodiment of the utility model adjusts the positions of the two clamping plates 530 arranged relatively by adjusting the position of the slide rail 511a of the mounting portion 513 on the sleeve portion 511, which is conducive to improving the portability and stability of battery operation. When the battery needs to be clamped, the position of the mounting portion 513 on the slide rail 511a is adjusted so that the clamping plates 530 of the two clamps 500 are close to each other, which is beneficial to improve the stability of battery clamping; when the battery needs to be loosened, the position of the mounting portion 513 on the slide rail 511a is adjusted so that the clamping plates 530 of the two clamps 500 are far away from each other, which is beneficial to improve the ease of loosening the battery.

[0033] See also Figures 1 to 3 As shown, in one embodiment of the utility model, the mounting portion 513 is movably connected with the second nut 502, and the second nut 502 movably passes through the mounting portion 513 and abuts against the sleeve portion 511, so that the mounting portion 513 is installed on the sleeve portion 511. It should be noted that when positioning is required, the second nut 502 is rotated so that the second nut 502 passes through the mounting portion 513 and abuts against the movable portion, so that the mounting portion 513 is positioned and locked to the movable portion, thereby being suitable for battery inflation detection; when adjustment is required, the second nut 502 is rotated so that the second nut 502 abutting against the movable portion is separated from the movable portion, so that the mounting portion 513 is movably unlocked from the movable portion, thereby realizing the adjustment of the position of the mounting portion 513 on the slide rail 511a of the movable portion, thereby being suitable for clamping and loosening the battery.

[0034] See also Figures 1 to 3As shown, in one embodiment of the utility model, the pressing plate 100 includes a first pressing plate 110 and a second pressing plate 130 connected side by side, and the first pressing plate 110 and the second pressing plate 130 are respectively provided with assembly rods 300 on the sides facing each other, and the clamps 530 of the two clamps 500, the first pressing plate 110 and the second pressing plate 130 are enclosed to form an assembly space. It should be noted that the embodiment of the utility model is to press the two sides of the top cover respectively by the first pressing plate 110 and the second pressing plate 130 arranged at intervals, so as to effectively realize the pressing of the battery top cover on the basis of reducing the weight, thereby avoiding the volume change during the battery charging detection process, and ensuring the accuracy of the airtightness detection. Of course, the first pressing plate 110 and the second pressing plate 130 arranged at intervals in the embodiment of the utility model can be connected by a connecting rod, and the two ends of the connecting rod are respectively protruding from the side of the first pressing plate 110 away from the second pressing plate 130 and the side of the second pressing plate 130 away from the first pressing plate 110, so as to form two protruding assembly rods 300.

[0035] See also Figures 1 to 3 As shown, in one embodiment of the present invention, a plurality of through holes 110a are provided on the surface of the pressing plate 100, and the plurality of through holes 110a are spaced apart on the pressing plate 100. It should be noted that the through holes 110a provided on the pressing plate 100 can reduce the weight of the pressing plate 100 and facilitate the staff to assemble the battery. Of course, the aperture and number of the through holes 110a can be adjusted according to actual conditions, and the embodiments of the present invention are not limited thereto, and the above are all within the protection scope of the embodiments of the present invention.

[0036] The above description is only an optional embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A battery pressure maintaining tool, characterized in that: include: A pressing plate, the pressing plate having two side edges arranged back to back, and assembly rods protruding from the two side edges of the pressing plate; and Two chucks are respectively installed on the assembly rods on both sides of the pressure plate, the chucks include a clamping plate and a movable seat, the movable seat is movably arranged on the assembly rod, the movable seats of the two chucks are arranged opposite to each other, and a clamping plate is protruding from the surface of the movable seat of one chuck facing the movable seat of the other chuck, so that the clamping plates of the two chucks are spaced apart from the pressure plate and enclosed to form an assembly space, and the assembly space is used to install the battery to be tested.

2. The battery pressure maintaining tooling according to claim 1, characterized in that: The splint includes a side plate and a bottom plate, the surfaces of the two side plates are arranged opposite to each other, the surface of one side plate facing away from the other side plate is arranged on the movable seat, the side edges of the side plates are convex on the surface of the bottom plate, and the side plates and the bottom plate of the two splints are enclosed with the pressure plate to form the assembly space.

3. The battery pressure maintaining tooling according to claim 2, characterized in that: The movable seat is provided with a plurality of assembly holes, and the plurality of assembly holes are distributed along the direction opposite to the bottom plate and the pressure plate, and the side plate is detachably mounted on the movable seat through one of the assembly holes.

4. The battery pressure maintaining tooling according to claim 3, characterized in that: The movable seat is provided with an assembly groove, the assembly groove is extended along the direction opposite to the bottom plate and the pressing plate, and the assembly groove forms a plurality of the assembly holes.

5. The battery pressure maintaining tooling according to any one of claims 1 to 4, characterized in that: The movable seat includes a sleeve portion and a mounting portion, the sleeve portion is movably mounted on the assembly rod, the sleeve portion moves along the length direction of the assembly rod, and the sleeve portion is connected to the clamping plate through the mounting portion so that the clamping plate moves along the length direction of the assembly rod with the sleeve portion.

6. The battery pressure maintaining tooling according to claim 5, characterized in that: The sleeve portion is movably connected with a first nut, and the first nut movably passes through the sleeve portion and contacts the assembly rod, so that the sleeve portion is installed on the assembly rod.

7. The battery pressure maintaining tooling according to claim 5, characterized in that: A slide rail is formed on the outer side of the sleeve portion, and the slide rail is arranged along the length direction of the sleeve portion. The mounting portion is movably mounted on the slide rail, and the mounting portion moves along the length direction of the slide rail. The clamping plate is arranged on the mounting portion so that the clamping plate moves along the length direction of the sleeve portion with the mounting portion.

8. The battery pressure maintaining tooling according to claim 7, characterized in that: The mounting portion is movably connected with a second nut, and the second nut movably passes through the mounting portion and abuts against the sleeve portion, so that the mounting portion is mounted on the sleeve portion.

9. The battery pressure maintaining tooling according to any one of claims 1 to 4, characterized in that: The pressing plate includes a first pressing plate and a second pressing plate connected side by side, and the first pressing plate and the second pressing plate are respectively provided with the assembly rods protruding from their back-to-back sides, and the clamping plates of the two chucks, the first pressing plate and the second pressing plate enclose the assembly space.

10. The battery pressure maintaining tooling according to any one of claims 1 to 4, characterized in that: A plurality of through holes are arranged on the surface of the pressing plate, and the plurality of through holes are distributed on the pressing plate at intervals.

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