Restraining tray of cylindrical battery pack

Abstract

The invention relates to the technical field of battery discharge testing, in particular to a restraining tray of a cylindrical battery pack, which comprises a discharge testing mechanism, the discharge testing mechanism comprises a discharge testing seat, a discharge device is slidably connected in the discharge testing seat, and four corners of the bottom of the discharge device are fixedly connected with first springs; the other ends of the first springs are fixedly connected with the four corners of the bottom of the inner wall of the discharging test seat, a plurality of discharging holes are formed in the top of the discharging test seat, and the discharging holes are distributed in a rectangular mode at equal intervals. The battery restraining mechanism can be used for clamping and positioning the placed cylindrical batteries, so that the cylindrical batteries with different diameters can be restrained, and the synchronous descending mechanism is started in the process of using the battery restraining mechanism, so that the synchronous descending mechanism drives the discharge testing mechanism to approach the battery restraining mechanism to carry out discharge testing.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery discharge test, and particularly relates to a restraint tray of cylindrical battery pack. BACKGROUND

[0002] When batteries are designed and produced, the produced batteries need to be detected in various parameters by battery test equipment to understand the electrical performance of the batteries. In the process of electrical performance test of the batteries, a restraint tray is needed to place the batteries, so as to fix and protect the cylindrical lithium ion battery pack. The restraint tray plays a crucial role in the production and quality control process of the battery pack, and ensures that the battery is not damaged or misjudged due to vibration, movement or collision during discharge detection.

[0003] However, in the process of using the restraint tray to limit and protect the battery, different models of restraint trays need to be replaced when batteries of different diameters are tested, which leads to the fact that the restraint tray cannot be used for batteries of different diameters, and the user needs to place the restraint tray above the discharge test equipment and then start the discharge equipment for discharge, which reduces the overall discharge test efficiency. SUMMARY

[0004] This section is intended to summarize some aspects of the embodiments of the present application and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of the specification of the present application to avoid obscuring the purpose of this section, the abstract and the title, and such simplifications or omissions cannot be used to limit the scope of the present application.

[0005] In view of the above problems of the existing restraint tray of cylindrical battery pack, the present application is proposed.

[0006] Therefore, the purpose of the present application is to provide a restraint tray of cylindrical battery pack, which aims to adapt to the diameter of the battery for fixation and gradually discharge test during placement.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a discharge testing mechanism, comprising a discharge testing base, a lower discharger slidably connected inside the discharge testing base, a first spring fixedly connected to each of the four corners of the bottom of the lower discharger, the other end of the first spring being fixedly connected to the four corners of the bottom of the inner wall of the discharge testing base, a discharge hole being provided on the top of the discharge testing base, the discharge hole having a plurality of holes and being distributed in a rectangular equidistant manner, the interior of the discharge hole being slidably connected to the top of the lower discharger, and an upper discharger being provided on the top of the discharge testing base; And, a battery restraint mechanism, comprising a battery restraint tray, the bottom of which is slidably connected to the right side of the top of the discharge test base; a plurality of placement holes are provided on the top of the battery restraint tray, which are distributed in a rectangular, equidistant manner; clamping members are provided on the front and rear sides of the inner wall of the placement holes; a transmission member is fixedly connected to the outer side of the clamping members; a plurality of movable grooves are provided on the bottom of the battery restraint tray, which are distributed in a rectangular, equidistant manner; a force-bearing plate is slidably connected inside the movable grooves; the transmission member is located away from the clamping members. A side-through passage extends into the interior of the movable groove and is fixedly connected to the force-bearing plate. The force-bearing plate is inclined on the side away from the transmission component. A triangular block is provided inside the movable groove. The bottom of the triangular block is fixedly connected to the top of the discharge test base. The two sides of the triangular block are slidably connected to the side of the force-bearing plate away from the transmission component. A second spring is fixedly connected to the side of the force-bearing plate near the transmission component. The other end of the second spring is fixedly connected to the two sides of the inner wall of the movable groove. A sliding plate is slidably connected to the left side of the top of the discharge test base. The right side of the sliding plate is connected to the... The left side of the triangular block is fixedly connected, and the two sides of the left side of the slide plate are fixedly connected to connectors. There are two sets of connectors, and each set has two connectors. The left side of the inner wall of the connector is fixedly connected to a tension spring. The other end of the tension spring is fixedly connected to the two sides of the top left side of the discharge test base. The left side of the discharge test base is fixedly connected to a mounting bracket. The two sides of the right side of the mounting bracket are provided with extension slots. The top of the mounting bracket is inlaid with a synchronous descent mechanism. The top of the discharge test base is provided with an anti-electric shock component. The two sides of the right side of the battery restraint tray are fixedly connected to positioning components.

[0008] As a preferred scheme of the restraining tray of the cylindrical battery pack, the synchronous descending mechanism comprises a first limiting shaft seat movably embedded in the top of the mounting frame, a screw rod fixedly connected to the top of the first limiting shaft seat, the screw rod penetrating through the top of the left side of the upper spark gap and being threadedly connected with the upper spark gap, a bevel gear fixedly connected to the bottom of the first limiting shaft seat, a bevel gear disc meshing with the front surface of the bevel gear, two transmission rods fixedly connected to the two sides of the bevel gear disc, two drive gears fixedly connected to the two sides of the mounting frame and penetrating through the two transmission rods, two second limiting shaft seats movably embedded in the two sides of the mounting frame and sleeved on the surfaces of the two transmission rods, a toothed rod meshing with the bottom of the drive gear, two drive grooves formed in the top of the discharge test seat, the surface of the toothed rod being in sliding connection with the inner wall of the drive groove, a drive plate fixedly connected to the top of the right side of the toothed rod, a magnetic suction block magnetically adsorbed to the top of the right side of the drive plate, the inner side of the magnetic suction block being fixedly connected to the left side of the two sides of the battery restraining tray, and the left side and the right side of the two sides of the upper spark gap being fixedly connected with the limiting assembly.

[0009] As a preferred scheme of the restraining tray of the cylindrical battery pack, the anti-electric shock assembly comprises a limiting groove formed in the top of the discharge test seat, a plurality of insulating soft belts fixedly connected to the right side of the sliding plate and equidistantly distributed, the insulating soft belts being located between the triangular blocks, a transmission block fixedly connected to the right side of the insulating soft belt, two limiting blocks fixedly connected to the bottom of the transmission block, the surface of the limiting block being in sliding connection with the inner wall of the limiting groove, an elastic pull rope fixedly connected to the right side of the limiting block, and the other end of the elastic pull rope being fixedly connected to the right side of the inner wall of the limiting groove.

[0010] As a preferred scheme of the restraining tray of the cylindrical battery pack, the positioning assembly comprises a positioning box fixedly connected to the left side of the battery restraining tray and the two sides of the right side of the battery restraining tray, a positioning block slidingly connected to the inside of the positioning box, two positioning grooves formed in the right side of the top of the discharge test seat, the left side of the positioning block being obliquely arranged, two third springs fixedly connected to the two sides of the top of the positioning block, and the other ends of the third springs being fixedly connected to the two sides of the top of the inner wall of the positioning box.

[0011] As a preferred scheme of the restraining tray of the cylindrical battery pack, the top of the positioning block is fixedly connected with a limiting column, the top of the limiting column penetrates through the top of the positioning box and is in sliding connection with the positioning box, and the right side of the battery restraining tray is provided with a synchronous lifting plate, the two sides of the bottom of the synchronous lifting plate being fixedly connected to the top of the limiting column.

[0012] As a preferred scheme of the restraining tray of the cylindrical battery pack, the inner side of the clamping piece is fixedly connected with a contact soft pad, the top of the clamping piece is fixedly connected with an arc-shaped guide piece, and the inner side of the arc-shaped guide piece is arranged in an inclined manner.

[0013] As a preferred scheme of the restraining tray of the cylindrical battery pack, the inner side of the contact soft pad is provided with a vertical groove, and the vertical groove is provided with a plurality of arc-shaped equidistantly distributed vertical grooves.

[0014] As a preferred scheme of the restraining tray of the cylindrical battery pack, the bottom of the lower discharging device is fixedly connected with a guide rod at four corners, and the bottom of the guide rod penetrates into the interior of the discharging test seat and is in sliding connection with the discharging test seat.

[0015] As a preferred scheme of the restraining tray of the cylindrical battery pack, the limiting assembly comprises a limiting sleeve, the inner side of the limiting sleeve is fixedly connected with the left side and the right side of the two sides of the upper discharging device, the interior of the limiting sleeve is in sliding connection with a limiting rod, and the bottom of the limiting rod is fixedly connected with the top of the discharging test seat.

[0016] As a preferred scheme of the restraining tray of the cylindrical battery pack, the two sides of the tooth rod are fixedly connected with a limiting piece, the inner side of the limiting piece is in sliding connection with the bottom of the two sides of the driving gear, the top of the left side of the driving plate is fixedly connected with a sealing piece, and the sealing piece is located at the top of the driving groove.

[0017] The beneficial effects of the present application are as follows: after the cylindrical battery is placed in the battery restraining mechanism, the battery restraining mechanism can clamp and position the placed cylindrical battery, thereby adapting to cylindrical batteries of different diameters for restraining, and during the use of the battery restraining mechanism, the synchronous descending mechanism is started to make the synchronous descending mechanism drive the discharging test mechanism to approach the battery restraining mechanism for discharging test. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort. Among them: Figure 1 The overall structure schematic diagram provided by the present application.

[0019] Figure 2 The three-dimensional structure schematic diagram of the upper discharging device provided by the present application.

[0020] Figure 3 A perspective view of the battery restraining tray according to the present application.

[0021] Figure 4 A cross-sectional view of the positioning box according to the present application.

[0022] Figure 5 A cross-sectional view of the battery restraining tray according to the present application.

[0023] Figure 6 A cross-sectional view of the discharge testing seat according to the present application.

[0024] Figure 7 A perspective view of the discharge testing seat according to the present application.

[0025] Figure 8 A perspective view of the triangular block according to the present application.

[0026] Figure 9 A perspective view of the mounting rack according to the present application. DETAILED DESCRIPTION

[0027] In order to make the above objectives, features and advantages of the present application more obvious and comprehensible, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0028] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without the specific details given herein, that the present application can be practiced with other than the described embodiments and that variations from the particular embodiments described herein can be made and still be within the scope of the present application.

[0029] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. The "in one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments.

[0030] Thirdly, the present application is described in detail in combination with the schematic diagrams. In the detailed description of the embodiments of the present application, the cross-sectional view of the device structure is locally enlarged without the general proportion for the convenience of description, and the schematic diagram is only an example, which should not limit the scope of protection of the present application. In addition, the three-dimensional spatial dimensions including length, width and depth should be included in the actual manufacture.

[0031] Embodiment 1 Reference Figures 1-8For the first embodiment of the application, the discharge test mechanism 100 and the battery restraint mechanism 200 are provided to realize automatic positioning and clamping of cylindrical batteries with different diameters before discharge testing.

[0032] The discharge test mechanism 100 includes a discharge test seat 101, a lower discharger 102 slidably connected inside the discharge test seat 101, a first spring 103 fixedly connected to the bottom of the lower discharger 102, the other end of the first spring 103 fixedly connected to the four corners of the inner wall of the bottom of the discharge test seat 101, a discharge hole 104 opened at the top of the discharge test seat 101, the discharge hole 104 being rectangular and equidistantly distributed, the inside of the discharge hole 104 slidably connected to the top of the lower discharger 102, and an upper discharger 105 provided at the top of the discharge test seat 101. The battery restraint mechanism 200 includes a battery restraint tray 201, the bottom of the battery restraint tray 201 slidably connected to the right side of the top of the discharge test seat 101, a placement hole 202 opened at the top of the battery restraint tray 201, the placement hole 202 being rectangular and equidistantly distributed, a clamping piece 203 provided on the front side and the rear side of the inner wall of the placement hole 202, a transmission piece 204 fixedly connected to the outside of the clamping piece 203, an active slot 205 opened at the bottom of the battery restraint tray 201, the active slot 205 being equidistantly distributed, a stress plate 206 slidably connected inside the active slot 205, the transmission piece 204 fixedly connected to the stress plate 206 inside the active slot 205 away from the clamping piece 203, the stress plate 206 fixedly connected to the inside of the active slot 205 away from the transmission piece 204, a triangular block 207 provided inside the active slot 205, the bottom of the triangular block 207 fixedly connected to the top of the discharge test seat 101, the two sides of the triangular block 207 slidably connected to the side of the stress plate 206 away from the transmission piece 204, a second spring 208 fixedly connected to the side of the stress plate 206 close to the transmission piece 204, the other end of the second spring 208 fixedly connected to the two sides of the inner wall of the active slot 205, a sliding plate 209 slidably connected to the left side of the top of the discharge test seat 101, the right side of the sliding plate 209 fixedly connected to the left side of the triangular block 207, a connecting piece 210 fixedly connected to the two sides of the left side of the sliding plate 209, the connecting piece 210 provided with two groups, each group provided with two connecting pieces, a tension spring 211 fixedly connected to the left side of the inner wall of the connecting piece 210, the other end of the tension spring 211 fixedly connected to the two sides of the top of the left side of the discharge test seat 101, a mounting frame 212 fixedly connected to the left side of the discharge test seat 101, the two sides of the right side of the mounting frame 212 opened to form an extension slot 213, a synchronous descending mechanism 300 embedded at the top of the mounting frame 212, an anti-electric shock assembly 214 opened at the top of the discharge test seat 101, and a positioning assembly 215 fixedly connected to the two sides of the right side of the battery restraint tray 201.

[0033] The anti-electric shock assembly 214 comprises a limiting groove 214a which is arranged on the top of the discharge test seat 101, the limiting groove 214a is arranged in several groups and each group is provided with two, the right side of the sliding plate 209 is fixedly connected with an insulating soft belt 214b, the insulating soft belt 214b is arranged in several groups and is distributed at equal distances, the insulating soft belt 214b is located between each triangular block 207, the right side of the insulating soft belt 214b is fixedly connected with a transmission block 214c, the bottom of the transmission block 214c is fixedly connected with a limiting block 214d on both sides, the surface of the limiting block 214d is in sliding connection with the inner wall of the limiting groove 214a, the right side of the limiting block 214d is fixedly connected with an elastic pull rope 214e, the other end of the elastic pull rope 214e is fixedly connected with the right side of the inner wall of the limiting groove 214a.

[0034] The positioning assembly 215 comprises a positioning box 215a, the left side of the positioning box 215a is fixedly connected with the right side of the battery restraint tray 201, the inside of the positioning box 215a is in sliding connection with a positioning block 215b, the right side of the top of the discharge test seat 101 is arranged with a positioning groove 215c on both sides, the left side of the positioning block 215b is arranged in an inclined manner, the top of the positioning block 215b is fixedly connected with a third spring 215d on both sides, the other end of the third spring 215d is fixedly connected with the top of the inner wall of the positioning box 215a on both sides.

[0035] The top of the positioning block 215b is fixedly connected with a limiting column 215e, the top of the limiting column 215e penetrates through the top of the positioning box 215a and is in sliding connection with the positioning box 215a, the right side of the battery restraint tray 201 is provided with a synchronous lifting plate 215f, the bottom of the synchronous lifting plate 215f is fixedly connected with the top of the limiting column 215e on both sides.

[0036] The inner side of the clamping piece 203 is fixedly connected with a contact soft pad 216, the top of the clamping piece 203 is fixedly connected with an arc-shaped guide 218, the inner side of the arc-shaped guide 218 is arranged in an inclined manner.

[0037] The inner side of the contact soft pad 216 is arranged with a vertical groove 217, the vertical groove 217 is arranged in several groups and is distributed at equal distances in an arc shape, the four corners of the bottom of the lower discharge device 102 are fixedly connected with a guide rod 106, the bottom of the guide rod 106 penetrates through the inside of the discharge test seat 101 and is in sliding connection with the discharge test seat 101.

[0038] Specifically, the battery restraint tray 201 drives the battery to be discharged to the upper discharge device 105 directly below and the lower discharge device 102 directly above, and then the upper discharge device 105 and the lower discharge device 102 are used to contact the positive and negative electrodes on both sides of the battery to discharge the test, and in the process of sliding the battery restraint tray 201 carrying the battery to the left, the two clamping pieces 203 in each placement hole 202 are moved inward to clamp the cylindrical battery in the placement hole 202 to the middle of the placement hole 202, at this time, the cylindrical battery of different diameters caused by the replacement of different batches can be clamped, and the adaptability of the battery restraint tray 201 is improved.

[0039] Specifically, the top of the lower discharge device 102 is covered with an insulating soft belt 214b to avoid the risk of electric shock near the user, improve the safety of use, and the insulating soft belt 214b is pushed away and stacked on the left during the discharge test, so that the lower discharge device 102 can discharge.

[0040] Specifically, after the battery restraint tray 201 box moves a certain distance to the left, the positioning block 215b is inserted into the positioning groove 215c, and then the positioning block 215b is tightly pressed by the tension of the tension spring 211, so as to position the battery restraint tray 201 moved to the discharge test position and ensure the stability during the discharge process.

[0041] Specifically, during the up and down movement of the positioning block 215b, the limiting column 215e and the positioning box 215a are used to limit the front, back, left and right of the positioning block 215b, so as to ensure the stability of the use of the positioning block 215b, and when the positioning of the battery restraint tray 201 is needed to be cancelled, the synchronous lifting plate 215f is lifted upward, so that the synchronous lifting plate 215f can drive the two limiting columns 215e to move upward, improving the use convenience.

[0042] Specifically, the clamping piece 203 contacts the cylindrical battery through the contact soft pad 216, so as to reduce the damage of the clamping piece 203 to the battery during clamping, improve the protection effect of the battery, and the inner side of the arc-shaped guide 218 is inclinedly arranged to avoid the top of the contact soft pad 216 blocking the cylindrical battery and affecting the placement of the cylindrical battery.

[0043] Specifically, the vertical groove 217 can improve the friction force when the soft pad 216 contacts the cylindrical battery, improve the clamping positioning effect of the cylindrical battery, and ensure that the heat generated during the discharge test of the cylindrical battery can be discharged, avoiding overheating damage or burning, improving the test safety, and guiding the upward direction of the lower discharger 102 during use, ensuring contact with each battery.

[0044] Further, when the battery needs to be discharged, the user can place the battery in the placement hole 202 of the battery restraint tray 201, then place the battery restraint tray 201 on the right side of the top of the discharge test seat 101, then slide the battery restraint tray 201 to the left until the battery restraint tray 201 moves the battery that needs to be discharged to the position directly below the upper discharger 105 and directly above the lower discharger 102, then the upper discharger 105 and the lower discharger 102 contact the positive and negative poles on both sides of the battery to perform discharge test. During the sliding process of the battery restraint tray 201 carrying the battery to the left side, the triangular block 207 will be inserted into the movable groove 205, then the inclined surfaces on both sides of the triangular block 207 will contact the inclined surfaces on the inner side of the stress plate 206, and during the sliding process of the battery restraint tray 201 to the left side, the stress plate 206 will be gradually pushed to the outside, so that the stress plate 206 exerts pressure on the second spring 208, and then the second spring 208 generates a rebound force, and the stress plate 206 also pushes the transmission member 204 to move outward, then the transmission member 204 drives the two clamping members 203 in each placement hole 202 to move inward, thereby clamping the cylindrical battery in the placement hole 202 to the middle of the placement hole 202. At this time, different diameters of cylindrical batteries caused by replacement of different batches can be clamped, improving the adaptability of the battery restraint tray 201, and after clamping the battery, the battery restraint tray 201 continues to move to the left and pushes the triangular block 207 to move to the left, so that the triangular block 207 drives the sliding plate 209 and the connecting member 210 to move to the left. At this time, the tension spring 211 generates a pulling force, so that the cylindrical battery on the battery restraint tray 201 can still move to the left after being clamped, so as to move the battery restraint tray 201 to the discharge test position. After the discharge test is completed, the battery restraint tray 201 is moved to the right, at this time the triangular block 207 will gradually separate from the stress plate 206, and the elastic force of the second spring 208 on the stress plate 206 can be released, thereby pushing the stress plate 206 to reset, so that the stress plate 206 drives the transmission member 204 and the clamping member 203 to reset, thereby no longer positioning the battery, so as to take out the battery on the battery restraint tray 201.

[0045] Further, during the movement of the battery restraining tray 201 to the left side, the left side of the battery restraining tray 201 will contact the transmission block 214c on the discharge test seat 101 and push the transmission block 214c to the left side at the same time, so that the transmission block 214c drives the limiting block 214d to be steadily pushed to the left side along the inner wall of the limiting groove 214a. At this time, the limiting block 214d will also pull one end of the elastic pull rope 214e to move, so that the elastic pull rope 214e generates a pulling force. Then the transmission block 214c will gradually push the insulating soft belt 214b to the left side, so that the right side of the insulating soft belt 214b moves to the left side and stacks, thereby leaking the lower discharger 102 in the discharge hole 104, and using the elastic force of the first spring 103 to make the top of the lower discharger 102 more closely contact with the bottom of the battery. When the battery restraining tray 201 is slid to the right side to take out after the battery is discharged, the pulling force of the elastic pull rope 214e will be released to pull the limiting block 214d to drive the transmission block 214c to reset. At this time, the transmission block 214c will drive the right side of the insulating soft belt 214b to move to the right side and reset and expand, thereby covering the top of the lower discharger 102, avoiding the risk of electric shock of the leaked lower discharger 102 close to the user, and improving the use safety.

[0046] Further, after the battery restraining tray 201 moves to the left side for a certain distance, the battery restraining tray 201 will synchronously drive the positioning box 215a and the positioning block 215b in the positioning box 215a to move to the left side. The left side of the positioning block 215b is inclined, so that when the left side of the positioning block 215b contacts the top of the right side of the discharge test seat 101, the positioning block 215b can be pushed to move upward to the inside of the positioning box 215a. At the same time, the third spring 215d is extruded to generate a rebound force. When the positioning block 215b corresponds to the positioning groove 215c, the elastic force of the third spring 215d will be released and push the positioning block 215b to insert into the positioning groove 215c. At this time, the positioning block 215b can be tightly pressed by the pulling force of the tension spring 211, so as to position the battery restraining tray 201 moved to the discharge test place, and ensure the stability during the discharging process.

[0047] Further, in the process of the positioning block 215b moving up and down, the positioning block 215b will drive the limiting column 215e to move up and down synchronously, and the sliding cooperation between the limiting column 215e and the positioning box 215a can limit the positioning block 215b in front, back, left and right directions, so as to ensure the stability of the use of the positioning block 215b. When it is needed to cancel the positioning of the battery restraining tray 201, the synchronous lifting plate 215f can be lifted upwards, so that the synchronous lifting plate 215f can drive the two limiting columns 215e to move upwards synchronously, and then the limiting column 215e will drive the positioning block 215b to move from the positioning groove 215c to the positioning box 215a. At this time, the pulling force of the tension spring 211 can push the battery restraining tray 201 to move outward.

[0048] Further, when the clamping piece 203 is used to clamp the cylindrical battery, the clamping piece 203 contacts the cylindrical battery through the contact soft pad 216, so as to reduce the damage caused by the clamping of the clamping piece 203 to the battery, and improve the protection effect of the battery. When the cylindrical battery is inserted into the placement hole 202, the inner side of the arc-shaped guide 218 is inclined, so that the cylindrical battery is directly inserted into the inner side of the contact soft pad 216 and placed, avoiding the top of the contact soft pad 216 from affecting the placement of the cylindrical battery.

[0049] Further, in the process of the contact soft pad 216 contacting the cylindrical battery, the vertical groove 217 formed in the contact soft pad 216 can improve the friction between the contact soft pad 216 and the cylindrical battery, further improving the clamping and positioning effect of the cylindrical battery. At the same time, the vertical groove 217 can also improve the gap between the cylindrical battery and the contact soft pad 216, so that the heat generated by the cylindrical battery during discharge testing can be discharged, avoiding overheating damage or burning, improving the testing safety. In addition, in the process of using the lower discharger 102, the guide rod 106 can guide the upward lifting direction of the lower discharger 102, ensuring that each battery is contacted.

[0050] It should be noted that the total spring force of the second spring 208 is less than the total pulling force of the tension spring 211, so that the force plate 206 is preferentially moved outward and moved to the limit before the triangular block 207 is pushed to move to the left.

[0051] Embodiment 2 Referring to Figures 1-9 For the second embodiment of the present application, a synchronous lowering mechanism 300 is provided to lower the upper discharger 105 when the battery is moved to the discharge testing position.

[0052] The synchronous descending mechanism 300 comprises a first limiting shaft seat 301 movably embedded at the top of the mounting rack 212, the top of the first limiting shaft seat 301 is fixedly connected with a screw rod 302, the top of the screw rod 302 penetrates to the left side of the top of the upper spark gap 105 and is threadedly connected with the upper spark gap 105, the bottom of the first limiting shaft seat 301 is fixedly connected with a bevel gear 303, the front surface of the bevel gear 303 is engaged with a bevel gear disc 304, the two sides of the bevel gear disc 304 are fixedly connected with transmission rods 305, the outer sides of the transmission rods 305 penetrate to the two sides of the mounting rack 212 and are fixedly connected with drive gears 306, the two sides of the mounting rack 212 are movably embedded with second limiting shaft seats 307, the second limiting shaft seats 307 are sleeved on the surfaces of the transmission rods 305, the bottom of the drive gear 306 is engaged with a toothed rod 308, the two sides of the top of the discharge test seat 101 are provided with drive grooves 309, the surface of the toothed rod 308 is in sliding connection with the inner walls of the drive grooves 309, the right side of the top of the toothed rod 308 is fixedly connected with a drive plate 310, the right side of the top of the drive plate 310 is magnetically adsorbed with a magnetic adsorption block 311, the inner side of the magnetic adsorption block 311 is fixedly connected with the left sides of the two sides of the battery restraint tray 201, and the left side and the right side of the two sides of the upper spark gap 105 are fixedly connected with limiting assemblies 312.

[0053] The limiting assembly 312 comprises a limiting sleeve 312a, the inner side of the limiting sleeve 312a is fixedly connected with the left side and the right side of the two sides of the upper spark gap 105, the inside of the limiting sleeve 312a is in sliding connection with a limiting rod 312b, and the bottom of the limiting rod 312b is fixedly connected with the top of the discharge test seat 101.

[0054] The two sides of the toothed rod 308 are fixedly connected with limiting sheets 313, the inner side of the limiting sheet 313 is in sliding connection with the bottom of the two sides of the drive gear 306, the top of the left side of the drive plate 310 is fixedly connected with a sealing sheet 314, and the sealing sheet 314 is located at the top of the drive groove 309.

[0055] Specifically, in the process of moving the left side of the battery restraint tray 201, the magnetic adsorption block 311 drives the screw rod 302 to rotate, then the threaded connection between the screw rod 302 and the upper spark gap 105 is utilized to drive the screw rod 302 to move downward, so that the bottom of the upper spark gap 105 can be in contact with the top of the battery on the battery restraint tray 201 after the battery restraint tray 201 moves to the discharge test position, thereby shortening the time for starting the descending of the upper spark gap 105 and improving the test efficiency.

[0056] Specifically, in the process of rotating the screw rod 302, the rotation of the upper spark gap 105 can be limited, thereby improving the stability during driving.

[0057] Specifically, during the left and right movement of the toothed rod 308, the limiting sheet 313 can limit the front and back of the driving gear 306 engaged with the toothed rod 308, ensuring the stability of the engagement of the toothed rod 308 with the gear, and the sealing sheet 314 can avoid the entry of foreign matter from above the driving groove 309 into the toothed rod 308 to cause the activity of the toothed rod 308 to be stuck.

[0058] Further, during the left movement of the battery restraint tray 201 box, the magnetic block 311 is also moved synchronously, so that the magnetic block 311 is attracted to the corresponding position of the driving plate 310 and moves to the left, then the driving plate 310 drives the toothed rod 308 below to move to the left along the inner wall of the driving groove 309, then the toothed rod 308 drives the corresponding driving gear 306 to rotate, and then the driving gear 306 drives the helical toothed disc 304 to rotate, and then the helical toothed disc 304 drives the helical gear 303 to rotate, so that the helical gear 303 drives the screw rod 302 above through the first limiting shaft seat 301 to rotate, and then the screw rod 302 is connected with the upper spark gap 105 through the thread, so that the screw rod 302 drives the upper spark gap 105 to move downward, so that the bottom of the upper spark gap 105 can be in contact with the top of the battery on the battery restraint tray 201 after the battery restraint tray 201 moves to the discharge test position. When the battery completes the discharge test and moves to the right to reset, the driving plate 310 is driven by the magnetic block 311 to move to the right, so that the driving plate 310 drives the corresponding toothed rod 308 to move to the right to reset, and then the toothed rod 308 drives the upper spark gap 105 to move upward to reset through the reverse rotation of the driving gear 306, the helical toothed disc 304, the helical gear 303, the first limiting shaft seat 301 and the screw rod 302.

[0059] Further, during the rotation of the screw rod 302, the upper spark gap 105 is limited in rotation through the sliding cooperation of the limiting rod 312b and the limiting sleeve 312a, so that the upper spark gap 105 cannot be directly driven to rotate by the screw rod 302 when the screw rod 302 rotates, which improves the stability during driving.

[0060] Further, during the left and right movement of the toothed rod 308, the limiting sheet 313 can limit the front and back of the driving gear 306 engaged with the toothed rod 308, ensuring the stability of the engagement of the toothed rod 308 with the gear, and the sealing sheet 314 can avoid the entry of foreign matter from above the driving groove 309 into the toothed rod 308 to cause the activity of the toothed rod 308 to be stuck.

[0061] The remaining structure is the same as that in Example 1.

[0062] Example 3 Reference Figures 1-9 This is the third embodiment of the present invention, which differs from the second embodiment in that: this embodiment provides a restraint tray for a cylindrical battery pack.

[0063] When a battery discharge test is required, the user places the battery into the placement hole 202 on the battery restraint tray 201, then places the battery restraint tray 201 on the top right side of the discharge test holder 101, and then slides the battery restraint tray 201 to the left until the battery restraint tray 201 moves the battery to be discharged to directly below the upper discharger 105 and directly above the lower discharger 102. The upper discharger 105 and lower discharger 102 can then contact the positive and negative terminals on the top and bottom sides of the battery to perform the discharge test. As the battery tray 201 slides to the left, the triangular block 207 inserts into the movable slot 205. The inclined surfaces on both sides of the triangular block 207 then contact the inclined surface inside the force plate 206. As the battery restraint tray 201 slides to the left, the force plate 206 is gradually pushed outwards, compressing the second spring 208. The second spring 208 then generates a rebound force, and the force plate 206 pushes the transmission component 204 outwards. The transmission component 204 then drives the two clamps in each placement hole 202. The component 203 moves inward, clamping the cylindrical battery in the placement hole 202 towards the center of the placement hole 202. This allows for the clamping of cylindrical batteries of different diameters due to different batches, improving the adaptability of the battery restraint tray 201. After clamping the battery, the battery restraint tray 201 continues to move to the left, pushing the triangular block 207 to the left. This causes the triangular block 207 to move the sliding plate 209 and the connecting component 210 to the left. At this time, the tension spring 211 is stretched, generating tension to ensure the battery restraint tray... After being clamped, the cylindrical battery on 201 can still move to the left so that the battery restraint tray 201 can be moved to the position for discharge testing. After the discharge test is completed, the battery restraint tray 201 is moved to the right. At this time, the triangular block 207 will gradually separate from the force plate 206. At the same time, the elastic force of the second spring 208 on the force plate 206 can be released, thereby pushing the force plate 206 to reset. This causes the force plate 206 to drive the transmission component 204 and the clamping component 203 to reset, so that the battery is no longer positioned, so that the battery can be removed from the battery restraint tray 201.

[0064] When the battery restraining tray 201 moves to the left, the left side of the battery restraining tray 201 will contact the transmission block 214c on the discharge test seat 101, and at the same time, the transmission block 214c will be pushed to the left, so that the transmission block 214c drives the limiting block 214d to stably push to the left along the inner wall of the limiting groove 214a. At this time, the limiting block 214d will also pull one end of the elastic pull rope 214e to move, so that the elastic pull rope 214e generates a pulling force. Then, the transmission block 214c will gradually push the insulating soft belt 214b to the left, so that the right side of the insulating soft belt 214b moves to the left and stacks, thereby leaking the lower discharger 102 in the discharge hole 104, and using the elastic force of the first spring 103 to make the top of the lower discharger 102 more closely contact with the bottom of the battery. When the battery restraining tray 201 is slid to the right to take out after the battery is discharged, the pulling force of the elastic pull rope 214e will be released to pull the limiting block 214d to drive the transmission block 214c to reset. At this time, the transmission block 214c will drive the right side of the insulating soft belt 214b to move to the right and reset and expand, thereby covering the top of the lower discharger 102, avoiding the risk of electric shock of the leaked lower discharger 102 close to the user, and improving the use safety.

[0065] After the battery restraining tray 201 moves to the left for a certain distance, the battery restraining tray 201 will synchronously drive the positioning box 215a and the positioning block 215b in the positioning box 215a to move to the left. The left side of the positioning block 215b is inclined, so that when the left side of the positioning block 215b contacts the top of the right side of the discharge test seat 101, the positioning block 215b can be pushed upward to the inside of the positioning box 215a. At the same time, the third spring 215d is subjected to compression to generate a rebound force. When the positioning block 215b corresponds to the positioning groove 215c, the rebound force of the third spring 215d will be released and push the positioning block 215b to insert into the positioning groove 215c. At this time, the positioning block 215b can be tightly pressed by the pulling force of the tension spring 211, thereby positioning the battery restraining tray 201 moved to the discharge test to ensure the stability during the discharging process.

[0066] During the up-down movement of the positioning block 215b, the positioning block 215b will synchronously drive the limiting column 215e to move up and down, so that the limiting column 215e and the positioning box 215a can be slid to limit the positioning block 215b in front, back, left and right directions, thereby ensuring the stability of the use of the positioning block 215b. When it is needed to cancel the positioning of the battery restraining tray 201, the synchronous lifting plate 215f can be lifted upward to synchronously drive the two limiting columns 215e to move upward. Then, the limiting column 215e will drive the positioning block 215b to move from the positioning groove 215c to the positioning box 215a. At this time, the battery restraining tray 201 can be pushed to move outward by the pulling force of the tension spring 211.

[0067] When the clamping piece 203 is used to clamp the cylindrical battery, the clamping piece 203 is in contact with the cylindrical battery through the contact soft pad 216, so as to reduce the damage caused by the clamping piece 203 to the battery when clamping the battery, and improve the protection effect on the battery. When the cylindrical battery is inserted into the placement hole 202, the inner side of the arc-shaped guide 218 is inclined, so that the cylindrical battery is directly inserted into the inner side of the contact soft pad 216 and placed, avoiding the top of the contact soft pad 216 from blocking the placement of the cylindrical battery.

[0068] In the process of contacting the contact soft pad 216 with the cylindrical battery, the vertical groove 217 formed on the contact soft pad 216 can improve the friction between the contact soft pad 216 and the cylindrical battery when they are in contact, further improving the clamping and positioning effect of the cylindrical battery. At the same time, the vertical groove 217 can also improve the gap between the cylindrical battery and the contact soft pad 216, ensure that the heat generated by the cylindrical battery during discharge testing can be discharged, avoid overheating damage or burning, improve the testing safety, and guide the upward direction of the lower discharger 102 during use, ensuring that each battery is in contact.

[0069] The magnetic block 311 is also moved synchronously during the movement of the battery restraint tray 201 box to the left side, so that the magnetic block 311 adsorbs the driving plate 310 at the corresponding position and moves to the left side, then the driving plate 310 drives the lower gear rod 308 to move to the left side along the inner wall of the driving groove 309, then the gear rod 308 drives the corresponding driving gear 306 to rotate, then the driving gear 306 drives the bevel gear 304 to rotate, then the bevel gear 304 drives the bevel gear 303 to rotate, so that the bevel gear 303 drives the upper screw rod 302 to rotate through the first limiting shaft seat 301, then the screw rod 302 is screwed with the upper spark gap 105, so that the screw rod 302 drives the upper spark gap 105 to move downward, so that the bottom of the upper spark gap 105 can be in contact with the top of the battery on the battery restraint tray 201 after the battery restraint tray 201 moves to the discharge test position. When the battery completes the discharge test, the battery restraint tray 201 is moved to the right side to reset, which is driven by the magnetic block 311 to move the driving plate 310 to the right side, so that the driving plate 310 drives the corresponding gear rod 308 to move to the right side to reset, then the gear rod 308 drives the upper spark gap 105 to move upward to reset through the transmission rod 305, the driving gear 306, the bevel gear 304, the bevel gear 303, the first limiting shaft seat 301 and the screw rod 302 in reverse rotation, and in the use process of the bevel gear 304, the second limiting shaft seat 307 can be used to limit the bevel gear 304 left and right, avoiding the disengagement of the bevel gear 304 from the bevel gear 303, improving the engagement stability.

[0070] During the rotation of the screw rod 302, the upper spark gap 105 is limited in rotation by the sliding fit of the limiting rod 312b and the limiting sleeve 312a, so that the upper spark gap 105 cannot be directly driven to rotate by the screw rod 302 when the screw rod 302 rotates, which improves the stability during driving.

[0071] During the left and right movement of the gear rod 308, the limiting piece 313 can limit the driving gear 306 engaged with the gear rod 308 front and back, ensuring the stability of the gear rod 308 and the gear engagement, avoiding the disengagement leading to the failure to drive, and in the process of driving the gear rod 308 left and right by the driving plate 310, the sealing piece 314 is also moved, so that the sealing piece 314 can seal the upper part of the driving groove 309 with the movement of the driving plate 310, avoiding the entry of foreign matters through the upper part of the driving groove 309 to cause the gear rod 308 to be stuck.

[0072] In summary, by using the battery restraint mechanism 200, different sizes of cylindrical batteries caused by different batches can be automatically clamped and positioned during the movement of the cylindrical batteries to the discharge test position, improving the test efficiency. During the movement to the discharge test position, the discharge test mechanism 100 is automatically started for discharge test by the synchronous descending mechanism 300.

Claims

1. A restraint tray for a cylindrical battery pack, characterized in that: include, A discharge testing mechanism (100) includes a discharge testing base (101), a lower discharger (102) slidably connected inside the discharge testing base (101), and a first spring (103) fixedly connected to each of the four corners of the bottom of the lower discharger (102). The other end of the first spring (103) is fixedly connected to the four corners of the bottom of the inner wall of the discharge testing base (101). A discharge hole (104) is provided on the top of the discharge testing base (101). Several discharge holes (104) are provided and are distributed in a rectangular shape at equal intervals. The interior of the discharge hole (104) is slidably connected to the top of the lower discharger (102). An upper discharger (105) is provided on the top of the discharge testing base (101). A battery restraint mechanism (200) includes a battery restraint tray (201). The bottom of the battery restraint tray (201) is slidably connected to the right side of the top of the discharge test base (101). A placement hole (202) is provided on the top of the battery restraint tray (201). Several placement holes (202) are provided and are distributed in a rectangular and equidistant manner. Clamping members (203) are provided on the front and rear sides of the inner wall of the placement hole (202). A transmission member (204) is fixedly connected to the outer side of the clamping member (203). A movable groove (205) is provided on the bottom of the battery restraint tray (201). 05) Several equidistantly distributed movable slots (205) are provided, with a force plate (206) slidably connected inside. The side of the transmission member (204) away from the clamping member (203) extends into the interior of the movable slot (205) and is fixedly connected to the force plate (206). The side of the force plate (206) away from the transmission member (204) is inclined. A triangular block (207) is provided inside the movable slot (205). The bottom of the triangular block (207) is fixedly connected to the top of the discharge test base (101), and the two sides of the triangular block (207) are fixedly connected to the force plate (206). 6) A sliding connection is made on the side away from the transmission component (204). A second spring (208) is fixedly connected to the side of the force plate (206) near the transmission component (204). The other end of the second spring (208) is fixedly connected to both sides of the inner wall of the movable groove (205). A sliding plate (209) is slidably connected to the left side of the top of the discharge test seat (101). The right side of the sliding plate (209) is fixedly connected to the left side of the triangular block (207). Connecting parts (210) are fixedly connected to both sides of the left side of the sliding plate (209). There are two sets of connecting parts (210), and two parts are provided in each set. A tension spring (211) is fixedly connected to the left side of the inner wall of the connector (210). The other end of the tension spring (211) is fixedly connected to both sides of the top left side of the discharge test base (101). A mounting bracket (212) is fixedly connected to the left side of the discharge test base (101). An extension slot (213) is provided on both sides of the right side of the mounting bracket (212). A synchronous lowering mechanism (300) is embedded in the top of the mounting bracket (212). An anti-electric shock component (214) is provided on the top of the discharge test base (101). A positioning component (215) is fixedly connected to both sides of the right side of the battery restraint tray (201).

2. The restraint tray for the cylindrical battery pack according to claim 1, characterized in that: The synchronous lowering mechanism (300) includes a first limiting shaft seat (301), which is movably embedded in the top of the mounting frame (212). A screw (302) is fixedly connected to the top of the first limiting shaft seat (301). The top of the screw (302) extends through to the left side of the top of the upper discharger (105) and is threadedly connected to the upper discharger (105). A helical gear (303) is fixedly connected to the bottom of the first limiting shaft seat (301). A helical gear disk (304) meshes with the front of the helical gear (303). A transmission rod (305) is fixedly connected to both sides of the helical gear disk (304). A drive gear (306) is fixedly connected to the outer side of the transmission rod (305) extending through to both sides of the mounting frame (212). The mounting frame (212) 12) Both sides are movably inlaid with second limiting shaft seats (307), the second limiting shaft seats (307) are sleeved on the surface of the transmission rod (305), the bottom of the drive gear (306) is meshed with a rack (308), both sides of the top of the discharge test seat (101) are provided with drive grooves (309), the surface of the rack (308) is slidably connected to the inner wall of the drive groove (309), the right side of the top of the rack (308) is fixedly connected to a drive plate (310), the top right side of the drive plate (310) is magnetically attracted to a magnetic block (311), the inner side of the magnetic block (311) is fixedly connected to the left side of both sides of the battery restraint tray (201), and the left and right sides of both sides of the upper discharger (105) are fixedly connected to limiting components (312).

3. The restraint tray for the cylindrical battery pack according to claim 1, characterized in that: The anti-electric shock component (214) includes a limiting groove (214a) which is formed on the top of the discharge test base (101). Several sets of limiting grooves (214a) are provided, with two grooves in each set. An insulating soft strip (214b) is fixedly connected to the right side of the sliding plate (209). Several insulating soft strips (214b) are provided and evenly distributed, located between each of the triangular blocks (207). A transmission block (214c) is fixedly connected to the right side of the insulating soft strip (214b). Limiting blocks (214d) are fixedly connected to both sides of the bottom of the transmission block (214c). The surface of the limiting block (214d) is slidably connected to the inner wall of the limiting groove (214a). An elastic pull rope (214e) is fixedly connected to the right side of the limiting block (214d). The other end of the elastic pull rope (214e) is fixedly connected to the right side of the inner wall of the limiting groove (214a).

4. The restraint tray for the cylindrical battery pack according to claim 1, characterized in that: The positioning component (215) includes a positioning box (215a). The left side of the positioning box (215a) is fixedly connected to the two sides of the right side of the battery restraint tray (201). A positioning block (215b) is slidably connected inside the positioning box (215a). Positioning grooves (215c) are provided on both sides of the top right side of the discharge test seat (101). The left side of the positioning block (215b) is inclined. A third spring (215d) is fixedly connected to both sides of the top of the positioning block (215b). The other end of the third spring (215d) is fixedly connected to both sides of the top of the inner wall of the positioning box (215a).

5. The restraint tray for the cylindrical battery pack according to claim 4, characterized in that: The top of the positioning block (215b) is fixedly connected to a limiting post (215e), the top of the limiting post (215e) extends through to the top of the positioning box (215a) and is slidably connected to the positioning box (215a). A synchronous lifting plate (215f) is provided on the right side of the battery restraint tray (201), and the two sides of the bottom of the synchronous lifting plate (215f) are fixedly connected to the top of the limiting post (215e).

6. The restraint tray for a cylindrical battery pack according to claim 3 or 4, characterized in that: The inner side of the clamping member (203) is fixedly connected to a contact pad (216), and the top of the clamping member (203) is fixedly connected to an arc-shaped guide (218), the inner side of the arc-shaped guide (218) being inclined.

7. The restraint tray for a cylindrical battery pack according to claim 6, characterized in that: The inner side of the contact pad (216) is provided with vertical grooves (217), and there are several vertical grooves (217) distributed in an arc shape at equal intervals.

8. The restraint tray for a cylindrical battery pack according to claim 1, characterized in that: Guide rods (106) are fixedly connected to the four corners of the bottom of the lower discharger (102). The bottom of the guide rods (106) penetrates into the interior of the discharge test base (101) and is slidably connected to the discharge test base (101).

9. The restraint tray for a cylindrical battery pack according to claim 2, characterized in that: The limiting component (312) includes a limiting sleeve (312a), the inner side of which is fixedly connected to the left and right sides of the upper discharger (105), and a limiting rod (312b) is slidably connected inside the limiting sleeve (312a), the bottom of which is fixedly connected to the top of the discharge test base (101).

10. The restraint tray for a cylindrical battery pack according to claim 9, characterized in that: Both sides of the rack (308) are fixedly connected to limiting plates (313). The inner side of the limiting plate (313) is slidably connected to the bottom of both sides of the drive gear (306). A sealing plate (314) is fixedly connected to the top of the left side of the drive plate (310). The sealing plate (314) is located at the top of the drive groove (309).

Images