Power battery pack electrical measurement cooling device

Abstract

The invention belongs to the technical field of battery pack cooling, and particularly relates to a power battery pack electric measurement cooling device which comprises a detection table, a cooling mounting assembly, an angle adjusting assembly and a displacement driving assembly, the top of the detection table is used for placing a to-be-detected battery pack, and an n-shaped equipment support is arranged at the top of the detection table. The angles of the fixed frame and the movable frames are adjusted through the angle adjusting assemblies, the three movable frames are controlled to rotate and approach the position of the battery pack at the same time, the battery pack is half surrounded in the area, and then the cooling fan is started to enable multiple faces of the battery pack to be rapidly cooled; the displacement driving assembly drives all the cooling fans to reciprocate at the same time, so that the movement range of the cooling fans is enlarged, the heat dissipation performance of the upper side area, the left side area and the right side area of the battery pack is improved, and after detection is completed, the three movable frames can be far away from the position of the battery pack through the angle adjusting assembly. The exposed area of the detection table is large, and detection is convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of battery pack cooling, and specifically to an electric measurement cooling device for a power battery pack. Background Art

[0002] The electric measurement of a power battery pack refers to a series of electrical performance tests on the power battery pack of an electric vehicle to ensure the performance and safety of the battery pack under various working conditions. When the battery is performing high-power charging and discharging during the electric measurement of the battery pack, the temperature of the battery pack will increase. Although existing battery packs usually have cooling components, however, if an additional device for assisting in further cooling is added on the test bench, the cooling speed of the battery pack can be increased. The most direct way of assisting in cooling is to install a cooling fan on the test bench to increase the fluidity of the gas on the test bench, thereby achieving cooling.

[0003] If multiple cooling fans are installed around the battery pack directly on the test bench, a relatively large area of the test bench will be occupied, which may affect the placement and removal of the battery pack, as well as the wiring with the electric measurement equipment during testing. Moreover, the flexibility of the cooling fan is relatively low, and the range of movement of the cooling fan is limited, which is not conducive to improving the heat dissipation performance of the area where the battery pack is located. Therefore, it is necessary to develop an electric measurement cooling device for a power battery pack. Summary of the Invention

[0004] The purpose of this part is to outline some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract and title of the specification of this application, to avoid obscuring the purpose of this part, the abstract, and the title. However, such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] To solve the above technical problems, according to one aspect of the present invention, the following technical solutions are provided:

[0006] An electric measurement cooling device for a power battery pack, which includes:

[0007] A test bench, the top of the test bench is used to place the battery pack to be tested, and an equipment support in the shape of "冂" is provided on the top of the test bench;

[0008] A cooling installation component, which is arranged below the equipment support and above the battery pack. It includes a fixed frame and movable frames rotatably arranged on the left, right, and rear sides of the fixed frame. When all the movable frames rotate and approach the position of the battery pack, the formed area semi-surrounds the battery pack within this area. Cooling fans are provided on the sides of the fixed frame and the three movable frames facing the battery pack. Among them, the cooling fans located above, on the left, and on the right of the battery pack reciprocate along the axial direction of the battery pack, and the cooling fan located behind the battery pack is fixedly arranged;

[0009] An angle adjustment component, disposed on the cooling installation component, for simultaneously controlling the three movable frames to rotate closer to / away from the battery pack position;

[0010] The displacement drive assembly is arranged on the front side wall of the cooling installation assembly, and is used to simultaneously drive the three active cooling fans to reciprocate along the axial direction of the battery pack, and no matter how the angle between the active frame and the fixed frame changes, the displacement drive assembly always drives the cooling fans to move.

[0011] As a preferred solution of the power battery pack electrical temperature reduction device described in the present invention, the angle adjustment assembly includes an adjustment sleeve rod hingedly arranged on the top of each movable frame close to the fixed frame side, and an adjustment sleeve is arranged on the sliding sleeve outside the rod body at the other end of each adjustment sleeve rod, and the other end of the adjustment sleeve is rotated through a bearing sleeve and penetrates a screw rod parallel to the adjustment sleeve rod, and the rod body of the screw rod is threadedly connected to the adjustment sleeve rod for transmission.

[0012] As a preferred solution of the power battery pack electrical temperature reduction device described in the present invention, wherein: the inner side wall of the adjusting sleeve is located on both sides of the adjusting sleeve rod and is symmetrically provided with limit sliding grooves parallel to the adjusting sleeve rod; the end of the adjusting sleeve rod is located in the inner cavity of the adjusting sleeve and is symmetrically provided with limit sliding blocks that fit and slide in the limit sliding grooves.

[0013] As a preferred solution of the power battery pack temperature reduction device described in the present invention, the other end of the screw is fixedly connected to one end of the first universal joint, and the other end of the first universal joint is fixedly provided with a first bevel gear;

[0014] A fixing frame is arranged between the top of the fixing frame and the inner top of the equipment bracket, and a driving rod parallel to the fixing frame is rotatably penetrated through the side wall of the fixing frame through a bearing sleeve, and a second bevel gear meshing with the first bevel gear is arranged on the rod body and the rear end of the driving rod;

[0015] A hand crank is arranged at the front end of the driving rod, and an anti-slip cover is arranged at the hand holding position of the hand crank.

[0016] As a preferred solution of the power battery pack temperature reduction device described in the present invention, wherein: a first fixing plate is fixedly arranged on the inner top of the equipment bracket, and the first fixing plate is used to install the first universal joints located on the left and right sides of the top of the fixing frame, and the ends of the first universal joints on the left and right sides close to the first bevel gear are rotated through the side wall of the first fixing plate through the first connecting rod;

[0017] A second fixing plate is fixedly provided on the rear side wall of the fixing frame, and the second fixing plate is used to install the first universal joint located at the rear of the top of the fixing frame. One end of the first universal joint at the rear close to the first bevel gear is rotated through the side wall of the second fixing plate through the second connecting rod.

[0018] As a preferred solution of the power battery pack electrical cooling device described in the present invention, the displacement drive assembly includes a rotating reciprocating screw arranged on the inner wall of the fixed frame and the movable frame on both sides, and there are three reciprocating screws in total, and a mounting seat is transmission-arranged on the rod body of each reciprocating screw, and the cooling fan is fixed at the bottom of the mounting seat.

[0019] As a preferred solution of the power battery pack temperature reduction device described in the present invention, a limiting guide slide bar is fixedly arranged on the inner side walls of the fixed frame and the movable frames on both sides, the limiting guide slide bar and the reciprocating screw rod are parallel to the fixed frame, and the front and rear side walls of the mounting seat are slidably penetrated by the rod body of the limiting guide slide bar through linear bearings.

[0020] As a preferred solution of the power battery pack temperature reduction device described in the present invention, the front end of the reciprocating screw located on the inner side of the movable frame rotates through the front side wall of the movable frame through the bearing sleeve, and the reciprocating screw is provided with a first bevel gear, the front side wall of the movable frame located on the left and right sides of the fixed frame is fixedly provided with a first mounting plate, the side wall of the first mounting plate is rotated and penetrated by the bearing sleeve, a first transmission rod is provided at one end of the first transmission rod with a second bevel gear meshing with the first bevel gear, the other end of the first transmission rod is fixed to one end of the second universal joint, the other end of the second universal joint is fixed to a spline rod, the outer side of the spline rod is sleeved with a spline sleeve adapted for transmission, and the other end of the spline sleeve is fixed to one end of a third universal joint;

[0021] A second mounting plate is fixedly provided symmetrically on the front side wall of the fixed frame, and a second horizontal transmission rod is rotatably passed through the side wall of the second mounting plate through a bearing sleeve, one end of two second transmission rods are respectively fixed to the other end of two third universal joints, and the other ends of the two second transmission rods are close to each other and are provided with third bevel gears.

[0022] As a preferred solution of a power battery pack electrical cooling device described in the present invention, wherein: the front end of the reciprocating screw on the inner side of the fixed frame rotates through the front side wall of the fixed frame through the bearing sleeve, and the front end of the reciprocating screw is provided with a fourth bevel gear meshing with two third bevel gears, a servo motor is provided at the front of the top of the fixed frame, and sprockets are respectively provided at the output shaft of the servo motor and the front of the rod body of the reciprocating screw, the two sprockets are in the same vertical plane, and the two sprockets are driven by chains.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. Place the battery pack to be tested on the test bench and perform electrical testing on it through the electrical testing equipment. When the temperature of the battery pack to be tested is high and needs to be cooled, the hand crank is used to drive the driving rod to rotate, and the second bevel gear and the first bevel gear are used to drive all the first universal joints and screws to rotate, so that the adjusting sleeve rod can move along the axial direction of the adjusting sleeve, and the length of the adjusting sleeve rod and the adjusting sleeve as a whole can be adjusted, thereby adjusting the angles of the fixed frame and the movable frame, so as to simultaneously control the three movable frames to rotate toward the battery pack position, half-enclose the battery pack in the area, and then start the cooling fan to quickly cool down the battery pack on multiple sides;

[0025] 2. Start the servo motor again, and drive the reciprocating screw located inside the fixed frame to rotate through the sprocket and the chain, and then drive the third universal joint to rotate through the fourth bevel gear and the third bevel gear, and then drive the two first transmission rods to rotate simultaneously through the spline sleeve, the spline rod and the second universal joint. Finally, the two reciprocating screws located inside the two movable frames are rotated through the second bevel gear and the first bevel gear, that is, all the reciprocating screws can be driven to rotate, so that the mounting seat drives the cooling fan to reciprocate along the rod body of the reciprocating screw and the limit guide slide rod, thereby increasing the range of the cooling fan's activity and improving the heat dissipation performance of the upper side and left and right sides of the battery pack;

[0026] 3. When the battery pack test is completed, the driving rod is rotated in the opposite direction through the hand crank, so that the three movable frames are moved away from the battery pack. The exposed area of ​​the test bench is larger, which is convenient for removing the battery pack from the test bench and then taking a new battery pack to be tested. Since the exposed area of ​​the test bench is larger at this time, it is also convenient for the new battery pack to be tested to undergo electrical testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in combination with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0028] Figure 1 It is a structural schematic diagram of the present invention;

[0029] Figure 2 It is a schematic diagram of the structure of the cooling installation assembly, the angle adjustment assembly and the displacement drive assembly of the present invention;

[0030] Figure 3 For the present invention Figure 2 Schematic diagram of the structure when looking upward;

[0031] Figure 4 For the present invention Figure 2 A schematic diagram of the structure in a rear-view direction;

[0032] Figure 5 It is a structural schematic diagram of a partial structure of the angle adjustment component of the present invention;

[0033] Figure 6 For the present invention Figure 7 Exploded diagram of

[0034] Figure 7 This is a schematic diagram of the structure of the present invention when controlling three movable frames to rotate toward the battery pack position;

[0035] Figure 8 It is a structural schematic diagram of a partial structure of a displacement drive assembly of the present invention;

[0036] Fig. 9 For the present invention Figure 8 Schematic diagram of the structure viewed from the rear.

[0037] In the figure: test bench 100, equipment bracket 101, mounting screw hole 102, cooling mounting assembly 200, fixed frame 201, movable frame 202, cooling fan 203, angle adjustment assembly 300, adjustment sleeve 301, adjustment sleeve 302, screw 303, limit slide 304, limit slide block 305, first universal joint 306, first bevel gear 307, first fixing plate 308, fixing frame 309, second fixing plate 310, driving rod 311, second bevel gear 312, hand crank 313, first connecting rod 314, second connecting rod 315, displacement drive assembly 400, reciprocating screw 401, mounting seat 402, limiting guide slide bar 403, first bevel gear 404, first mounting plate 405, first transmission rod 406, second bevel gear 407, second universal joint 408, spline rod 409, spline sleeve 410, third universal joint 411, second mounting plate 412, second transmission rod 413, third bevel gear 414, fourth bevel gear 415, servo motor 416, sprocket 417, chain 418. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0039] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0040] Secondly, the present invention will be described in detail in conjunction with the schematic diagrams. When describing the embodiments of the present invention in detail, for the convenience of explanation, the cross-sectional views showing the device structure will be enlarged locally not in accordance with the general scale, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0041] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0042] Please refer to Figure 1-Figure 9 , which shows a schematic structural diagram of an embodiment of an electric measurement and temperature reduction device for a power battery pack of the present invention. Please refer to Figure 1-Figure 9 , and a detailed introduction to an electric measurement and temperature reduction device for a power battery pack will be given.

[0043] Embodiment 1:

[0044] An electric measurement and temperature reduction device for a power battery pack includes a detection table 100. The top of the detection table 100 is used to place the battery pack to be tested, and a "冂"-shaped device support 101 is provided on the top of the detection table 100; mounting screw holes 102 are opened around the top of the detection table 100, and it is convenient to fix the detection table 100 in the required area through screws, bolts, etc. that fit the mounting screw holes 102;

[0045] The temperature reduction mounting assembly 200 is arranged below the device support 101 and above the battery pack. It includes a fixed frame 201 and movable frames 202 rotatably arranged on the left and right sides and the rear side of the fixed frame 201. When all the movable frames 202 rotate and approach the battery pack, the formed area will semi-surround the battery pack within this area. Heat dissipation fans 203 are provided on the sides of the fixed frame 201 and the three movable frames 202 facing the battery pack. Among them, the heat dissipation fans 203 located above, on the left, and on the right of the battery pack reciprocate along the axial direction of the battery pack, and the heat dissipation fan 203 located behind the battery pack is fixedly arranged; the fixed frame 201 and the movable frames 202 are both hollow bodies with open bottom walls, and heat dissipation openings are opened on the upper and lower walls of all three, so as to facilitate gas flow. Each heat dissipation fan 203 includes a ventilation housing, a motor fixedly arranged in the ventilation housing, and a heat dissipation fan blade fixed to the output end of the motor; after starting the motor to drive the heat dissipation fan blade to rotate, the air flow in the area is increased, which is beneficial to heat dissipation;

[0046] The angle adjustment assembly 300 is arranged on the temperature reduction mounting assembly 200 and is used to simultaneously control the three movable frames 202 to rotate and approach / away from the battery pack;

[0047] When the three movable frames 202 are close to the battery pack, the battery pack is half-enclosed in the area, and the cooling fan 203 is started so that the battery pack can be cooled quickly on multiple sides;

[0048] When the three movable frames 202 are moved away from the battery pack, the exposed area of ​​the test bench 100 is larger, so that it is convenient to remove the cooled battery pack from the test bench 100 and then take a new battery pack to be tested. Since the exposed area of ​​the test bench 100 is larger at this time, it is also convenient to perform the electrical testing process on the new battery pack to be tested.

[0049] The displacement drive component 400 is arranged on the front side wall of the cooling installation component 200, and is used to simultaneously drive the three active cooling fans 203 to move back and forth along the axis of the battery pack, and no matter how the angle between the movable frame 202 and the fixed frame 201 changes, the displacement drive component 400 always drives the cooling fans 203 to move; and when the three cooling fans 203 move back and forth along the axis of the battery pack under the drive of the displacement drive component 400, the range of activity of the cooling fans 203 can be increased, thereby improving the heat dissipation performance of the upper side and the left and right side areas of the battery pack.

[0050] Embodiment 2:

[0051] On the basis of Example 1, the angle adjustment assembly 300 includes an adjustment sleeve rod 301 hingedly arranged at the top of each movable frame 202 near the fixed frame 201, and an adjustment sleeve 302 is arranged on the outer sliding sleeve of the other end of the rod body of each adjustment sleeve rod 301, and the other end of the adjustment sleeve 302 is rotated through the bearing sleeve to penetrate a screw rod 303 parallel to the adjustment sleeve rod 301, and the rod body of the screw rod 303 is threadedly connected with the adjustment sleeve rod 301 for transmission;

[0052] The inner side wall of the adjusting sleeve 302 is located on both sides of the adjusting sleeve rod 301 and is symmetrically provided with limiting sliding grooves 304 parallel to the adjusting sleeve rod 301. The adjusting sleeve rod 301 is located on both sides of the end of the inner cavity of the adjusting sleeve 302 and is symmetrically provided with limiting sliding blocks 305 that fit and slide in the limiting sliding grooves 304.

[0053] When the screw rod 303 rotates, since the adjusting sleeve rod 301 is threadedly connected to the screw rod 303 and the adjusting sleeve rod 301 is restricted by the limiting slider 305 and the limiting slot 304 and cannot rotate, the adjusting sleeve rod 301 moves axially along the adjusting sleeve 302, that is, the overall length of the adjusting sleeve rod 301 and the adjusting sleeve 302 can be adjusted, thereby adjusting the angle of the fixed frame 201 and the movable frame 202;

[0054] The other end of the screw rod 303 is fixedly connected to one end of a first universal joint 306 , and the other end of the first universal joint 306 is fixedly provided with a first bevel gear 307 ;

[0055] A fixing frame 309 is provided between the top of the fixing frame 201 and the inner top of the equipment support 101. A driving rod 311 parallel to the fixing frame 201 is provided through the side wall of the fixing frame 309 through a bearing sleeve. The rod body and the rear end of the driving rod 311 are both provided with a second bevel gear 312 meshing with the first bevel gear 307.

[0056] The front end of the driving rod 311 is provided with a hand crank 313, and the hand crank 313 is provided with an anti-slip cover at the hand holding position;

[0057] When it is necessary to simultaneously control the three movable frames 202 to rotate closer to / away from the battery pack position, the hand crank 313 drives the driving rod 311 to rotate, and the second bevel gear 312 and the first bevel gear 307 drive all the first universal joints 306 and the screw 303 to rotate, so that the adjustment sleeve 301 can be moved axially along the adjustment sleeve 302, and the overall length of the adjustment sleeve 301 and the adjustment sleeve 302 can be adjusted, thereby adjusting the angle of the fixed frame 201 and the movable frame 202, so as to realize simultaneous control of the three movable frames 202 to rotate closer to / away from the battery pack position;

[0058] When the three movable frames 202 are close to the battery pack, the battery pack is half-surrounded in the area, and the cooling fan 203 is started so that the battery pack can be cooled quickly on multiple sides;

[0059] When the three movable frames 202 are moved away from the battery pack, the exposed area of ​​the test bench 100 is larger, so that it is convenient to remove the cooled battery pack from the test bench 100 and then take a new battery pack to be tested. Since the exposed area of ​​the test bench 100 is larger at this time, it is also convenient to perform the electrical testing process on the new battery pack to be tested.

[0060] A first fixing plate 308 is fixedly provided on the inner top of the equipment bracket 101. The first fixing plate 308 is used to install the first universal joints 306 located on the left and right sides of the top of the fixing frame 201. One end of the first universal joints 306 on the left and right sides close to the first bevel gear 307 rotates through the side wall of the first fixing plate 308 through the first connecting rod 314; the rod body of the first connecting rod 314 on the left and right sides can rotate through the side wall of the first fixing plate 308 through the bearing sleeve, which can reduce the friction between the first connecting rod 314 and the first fixing plate 308 when rotating. One end of the first connecting rod 314 is fixed to the end of the first universal joint 306, and the other end is fixed to the center of the first bevel gear 307;

[0061] A second fixing plate 310 is fixedly provided on the rear side wall of the fixing frame 309. The second fixing plate 310 is used to install the first universal joint 306 located at the top and rear of the fixing frame 201. One end of the first universal joint 306 at the rear, close to the first bevel gear 307, is rotated through the side wall of the second fixing plate 310 through the second connecting rod 315. The rod body of the first connecting rod 314 at the rear can be rotated through the side wall of the second fixing plate 310 through the bearing sleeve, which can reduce the friction between the first connecting rod 314 and the second fixing plate 310 when rotating. One end of the first connecting rod 314 is fixed to the end of the first universal joint 306, and the other end is fixed to the center of the first bevel gear 307.

[0062] Embodiment 3:

[0063] On the basis of Example 1, the displacement drive assembly 400 includes a rotating reciprocating screw 401 arranged on the inner side walls of the fixed frame 201 and the movable frames 202 on both sides, and a total of three reciprocating screws 401 are provided, and a mounting seat 402 is provided on the rod body of each reciprocating screw 401, and the cooling fan 203 is fixed at the bottom of the mounting seat 402;

[0064] The inner side walls of the fixed frame 201 and the movable frames 202 on both sides are also fixedly provided with a limited guide slide bar 403. The limited guide slide bar 403 and the reciprocating screw rod 401 are parallel to the fixed frame 201. The front and rear side walls of the mounting seat 402 are slidably penetrated by the rod body of the limited guide slide bar 403 through a linear bearing.

[0065] When the reciprocating screw rod 401 rotates, the mounting seat 402 drives the cooling fan 203 to reciprocate along the reciprocating screw rod 401 and the rod body of the limiting guide slide rod 403, thereby increasing the range of movement of the cooling fan 203 and improving the heat dissipation performance of the upper side and left and right side areas of the battery pack;

[0066] The front end of the reciprocating screw rod 401 located inside the movable frame 202 rotates through the front side wall of the movable frame 202 through the bearing sleeve, and the reciprocating screw rod 401 is provided with a first bevel gear 404. The front side wall of the movable frame 202 located on the left and right sides of the fixed frame 201 is fixedly provided with a first mounting plate 405, and the side wall of the first mounting plate 405 is rotated and penetrated by the bearing sleeve. A first transmission rod 406 is provided at one end of the first transmission rod 406 with a second bevel gear 407 meshing with the first bevel gear 404, and the other end of the first transmission rod 406 is fixed to one end of a second universal joint 408, and a spline rod 409 is fixed to the other end of the second universal joint 408. The outer side of the spline rod 409 is sleeved with a spline sleeve 410 adapted for transmission, and the other end of the spline sleeve 410 is fixed to one end of a third universal joint 411;

[0067] The front side wall of the fixing frame 201 is symmetrically fixed with a second mounting plate 412, and a transverse second transmission rod 413 is rotatably penetrated through the side wall of the second mounting plate 412 through a bearing sleeve, one end of two second transmission rods 413 are respectively fixed to the other ends of two third universal joints 411, and the other ends of the two second transmission rods 413 are close to each other and are provided with a third bevel gear 414;

[0068] The front end of the reciprocating screw rod 401 inside the fixed frame 201 rotates through the front side wall of the fixed frame 201 through the bearing sleeve, and the front end of the reciprocating screw rod 401 is provided with a fourth bevel gear 415 meshing with two third bevel gears 414. A servo motor 416 is provided at the front of the top of the fixed frame 201. The output shaft of the servo motor 416 and the front of the rod body of the reciprocating screw rod 401 are respectively provided with sprockets 417. The two sprockets 417 are in the same vertical plane, and the two sprockets 417 are driven by chains 418.

[0069] When the servo motor 416 is started, the reciprocating screw 401 located inside the fixed frame 201 is driven to rotate through the sprocket 417 and the chain 418, and then the third universal joint 411 is rotated through the fourth bevel gear 415 and the third bevel gear 414, and then the two first transmission rods 406 are driven to rotate simultaneously through the spline sleeve 410, the spline rod 409 and the second universal joint 408. Finally, the two reciprocating screws 401 located inside the two movable frames 202 are rotated through the second bevel gear 407 and the first bevel gear 404, that is, all the reciprocating screws 401 can be driven to rotate, so that the mounting seat 402 drives the cooling fan 203 to reciprocate along the rod body of the reciprocating screw 401 and the limiting guide slide rod 403, thereby increasing the range of movement of the cooling fan 203 and improving the heat dissipation performance of the upper side and left and right sides of the battery pack;

[0070] When the angles of the fixed frame 201 and the movable frames 202 on both sides thereof are adjusted, the movable frame 202 will also drive the first mounting plate 405 to move simultaneously. During this process, through the second universal joint 408, the spline rod 409, the spline sleeve 410 and the third universal joint 411 and other components, it is always ensured that the three reciprocating screw rods 401 can rotate simultaneously under the drive of the servo motor 416.

[0071] The specific working process is as follows: the battery pack to be tested is placed on the test bench 100, and is electrically tested by an electrical testing device. When the temperature of the battery pack to be tested is high and needs to be cooled, the driving rod 311 is driven to rotate by the hand crank 313, and the first universal joint 306 and the screw 303 are driven to rotate by the second bevel gear 312 and the first bevel gear 307, so that the adjusting sleeve 301 can be moved axially along the adjusting sleeve 302, and the overall length of the adjusting sleeve 301 and the adjusting sleeve 302 can be adjusted, thereby adjusting the angle of the fixed frame 201 and the movable frame 202, so as to simultaneously control the three movable frames 202 to rotate toward the battery pack position, and half surround the battery pack in the area, and then start the cooling fan 203 so that the battery pack can be quickly cooled on multiple sides;

[0072] Restart the servo motor 416, and drive the reciprocating screw 401 located on the inner side of the fixed frame 201 to rotate through the sprocket 417 and the chain 418, and then make the third universal joint 411 rotate accordingly through the fourth bevel gear 415 and the third bevel gear 414, and then drive the two first transmission rods 406 to rotate simultaneously through the spline sleeve 410, the spline rod 409 and the second universal joint 408, and finally, make the two reciprocating screws 401 located on the inner sides of the two movable frames 202 rotate through the second bevel gear 407 and the first bevel gear 404, that is, all the reciprocating screws 401 can be driven to rotate, so that the mounting seat 402 drives the cooling fan 203 to reciprocate along the rod body of the reciprocating screw 401 and the limiting guide slide rod 403, thereby increasing the range of activity of the cooling fan 203 and improving the heat dissipation performance of the upper side and left and right sides of the battery pack.

[0073] When the battery pack inspection is completed, the driving rod 311 is rotated in the opposite direction through the hand crank 313, so that the three movable frames 202 are moved away from the battery pack position. The exposed area of ​​the inspection table 100 is larger, which makes it convenient to remove the battery pack from the inspection table 100 and then take a new battery pack to be tested. Since the exposed area of ​​the inspection table 100 is larger at this time, it is also convenient to perform the electrical testing process on the new battery pack to be tested.

[0074] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A power battery pack temperature reduction device, characterized in that: Including: A detection table (100), the top of the detection table (100) is used to place the battery pack to be tested, and a device bracket (101) in the shape of "冂" is arranged on the top of the detection table (100); A temperature reduction and installation component (200), arranged below the device bracket (101) and above the battery pack, including a fixed frame (201) and movable frames (202) rotatably arranged on the left and right sides and the rear side of the fixed frame (201). When all the movable frames (202) rotate and approach the battery pack, the formed area semi - surrounds the battery pack within this area. Heat dissipation fans (203) are arranged on the sides of the fixed frame (201) and the three movable frames (202) facing the battery pack. Among them, the heat dissipation fans (203) located above, on the left side and on the right side of the battery pack reciprocate along the axial direction of the battery pack, and the heat dissipation fan (203) located behind the battery pack is fixedly arranged; An angle adjustment component (300), arranged on the temperature reduction and installation component (200), for simultaneously controlling the three movable frames (202) to rotate and approach / away from the battery pack; A displacement driving component (400), arranged on the front side wall of the temperature reduction and installation component (200), for simultaneously driving the three movable heat dissipation fans (203) to reciprocate along the axial direction of the battery pack, and no matter how the angle between the movable frame (202) and the fixed frame (201) changes, the displacement driving component (400) always drives the heat dissipation fan (203) to move.

2. The power battery pack temperature reduction device according to claim 1, characterized in that: The angle adjustment component (300) includes adjustment sleeve rods (301) hinged on the top of each movable frame (202) near the fixed frame (201). On the outer side of the rod body of the other end of each adjustment sleeve rod (301), an adjustment sleeve (302) is slidably sleeved. The other end of the adjustment sleeve (302) is rotatably penetrated through by a screw rod (303) parallel to the adjustment sleeve rod (301) through a bearing sleeve, and the rod body of the screw rod (303) is in threaded transmission with the adjustment sleeve rod (301).

3. The power battery pack temperature reduction device according to claim 2, characterized in that: On the inner side wall of the adjustment sleeve (302), limit sliding grooves (304) parallel to the adjustment sleeve rod (301) are symmetrically recessed on both sides of the adjustment sleeve rod (301). On both sides of the end of the adjustment sleeve rod (301) located in the inner cavity of the adjustment sleeve (302), limit sliding blocks (305) are symmetrically protruded and slidably clamped in the limit sliding grooves (304).

4. The power battery pack temperature reduction device according to claim 2, characterized in that: The other end of the screw rod (303) is fixedly connected to one end of a first universal joint (306), and a first bevel gear (307) is fixedly arranged at the other end of the first universal joint (306); A fixed frame (309) is arranged between the top of the fixed frame (201) and the inner top of the device bracket (101). A driving rod (311) parallel to the fixed frame (201) is rotatably penetrated through the side wall of the fixed frame (309) through a bearing sleeve. Second bevel gears (312) meshing with the first bevel gear (307) are arranged on the rod body and the rear end of the driving rod (311); A hand crank (313) is provided at the front end of the driving rod (311), and an anti-slip cover is provided at the hand-holding portion of the hand crank (313).

5. The power battery pack temperature reduction device according to claim 4, characterized in that: A first fixing plate (308) is fixedly provided on the inner top of the equipment bracket (101), and the first fixing plate (308) is used to install the first universal joints (306) located on the left and right sides of the top of the fixing frame (201), and one end of the first universal joints (306) on the left and right sides close to the first bevel gear (307) rotates through the side wall of the first fixing plate (308) through the first connecting rod (314); A second fixing plate (310) is fixedly provided on the rear side wall of the fixing frame (309), and the second fixing plate (310) is used to install the first universal joint (306) located at the rear of the top of the fixing frame (201), and one end of the first universal joint (306) at the rear close to the first bevel gear (307) is rotated through the side wall of the second fixing plate (310) through the second connecting rod (315).

6. The power battery pack temperature reduction device according to claim 1, characterized in that: The displacement drive assembly (400) comprises a rotating reciprocating screw (401) arranged on the inner side walls of a fixed frame (201) and movable frames (202) on both sides, wherein three reciprocating screws (401) are arranged in total, and a mounting seat (402) is transmission-arranged on the rod body of each reciprocating screw (401), and the cooling fan (203) is fixed on the bottom of the mounting seat (402).

7. The power battery pack temperature reduction device according to claim 6, characterized in that: A limiting guide slide bar (403) is also fixedly arranged on the inner side walls of the fixed frame (201) and the movable frames (202) on both sides; the limiting guide slide bar (403) and the reciprocating screw rod (401) are parallel to the fixed frame (201); and the front and rear side walls of the mounting seat (402) are slidably penetrated by the rod body of the limiting guide slide bar (403) via a linear bearing.

8. The power battery pack temperature reduction device according to claim 7, characterized in that: The front end of the reciprocating screw rod (401) located inside the movable frame (202) rotates through the front side wall of the movable frame (202) through the bearing sleeve, and the reciprocating screw rod (401) is provided with a first bevel gear (404). The front side wall of the movable frame (202) located on the left and right sides of the fixed frame (201) is fixedly provided with a first mounting plate (405), and the side wall of the first mounting plate (405) is rotated through the bearing sleeve to be provided with a first transmission rod (406), and the first transmission A second bevel gear (407) meshing with the first bevel gear (404) is disposed at one end of the rod (406); the other end of the first transmission rod (406) is fixed to one end of a second universal joint (408); a spline rod (409) is fixed to the other end of the second universal joint (408); a spline sleeve (410) adapted for transmission is sleeved on the outer side of the spline rod (409); the other end of the spline sleeve (410) is fixed to one end of a third universal joint (411); A second mounting plate (412) is fixedly disposed symmetrically on the front side wall of the fixed frame (201); a transverse second transmission rod (413) is rotatably penetrated through the side wall of the second mounting plate (412) via a bearing sleeve; one end of two second transmission rods (413) are respectively fixed to the other ends of two third universal joints (411); the other ends of the two second transmission rods (413) are close to each other and are provided with a third bevel gear (414).

9. The power battery pack temperature reduction device according to claim 8, characterized in that: The front end of the reciprocating screw rod (401) inside the fixed frame (201) rotates through the front side wall of the fixed frame (201) through the bearing sleeve, and the front end of the reciprocating screw rod (401) is provided with a fourth bevel gear (415) meshing with two third bevel gears (414). A servo motor (416) is provided at the front of the top of the fixed frame (201), and sprocket wheels (417) are respectively provided at the output shaft of the servo motor (416) and the front of the rod body of the reciprocating screw rod (401). The two sprocket wheels (417) are located in the same vertical plane, and the two sprocket wheels (417) are driven by chains (418).

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