Battery module cooling structure and battery module

Abstract

The present invention relates to the technical field of cooling structures, and specifically to a battery module cooling structure and a battery module. Four pairs of battery cells are arranged side by side, and a cooling gap is formed between each two adjacent pairs of the battery cells, and a heat dissipation copper tube is arranged in the cooling gap, and cooling water flows inside the heat dissipation copper tube; it also includes: a heat conducting plate, and a thermistor is arranged on the lower end surface of the heat conducting plate and in each cooling gap, and the thermistor is respectively installed in the cooling gaps on both sides, and the heat conducting plate is embedded in the upper end surface of the battery cell. The present invention is provided with a rotating sleeve. When the rotating sleeve is driven to rotate, it will drive the meshing ring to rotate so as to drive the fan to rotate. While the fan is rotating, it will reversely blow the refrigerant gas of the refrigeration equipment connected to the meshing ring into the interior of the air outlet pipe, and blow it out through the air outlet to the cooling water flowing on the water curtain to reduce the heat of the circulating water.

Description

Technical Field

[0001] The present invention relates to the technical field of battery cooling, and in particular to a battery module cooling structure and a battery module. Background Art

[0002] A battery module is a component that combines multiple battery cells together. It usually includes battery cells, protection circuits, connecting wires and management systems, which are responsible for providing power, monitoring battery status and ensuring safe operation.

[0003] The battery module in the existing technology is usually equipped with a cooling mechanism to cool the battery module during operation. For example, a battery module cooling structure and a battery module disclosed in publication number CN117293446B. In the process of cooling the battery module in this existing technology, if the battery module is in a working state for a long time or in a high-intensity working state for a short time, the circulating cooling water will gradually heat up during the heat exchange with the battery module. Without further external cooling, if the heat of the circulating water cannot be dissipated in time, the heat exchange efficiency with the heat generated by the battery module will be reduced, and the cooling effect will be significantly reduced. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a battery module cooling structure and a battery module, which can effectively solve the problem in the prior art that the circulating cooling water gradually heats up during the heat exchange process with the battery module and cannot cool the battery module normally.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] The present invention provides a battery module cooling structure, comprising four pairs of battery cells arranged side by side, a cooling gap is formed between each two adjacent pairs of battery cells, and a heat dissipation copper tube is arranged in the cooling gap, and cooling water flows inside the heat dissipation copper tube; and further comprising:

[0007] A heat conducting plate, a thermistor is arranged on the lower end surface of the heat conducting plate and in each cooling gap, the thermistors are respectively installed in the cooling gaps on both sides, and the heat conducting plate is embedded in the upper end surface of the battery cell;

[0008] A circulating water mechanism, the circulating water mechanism comprising a drainage pump and a water outlet pump, the drainage pump and the water outlet pump are used to circulate the cooling water in the heat dissipation copper tube, and the drainage pump and the water outlet pump adaptively adjust the pumping speed according to the working temperature of the battery cell;

[0009] A cooling and pressurizing mechanism, the cooling and pressurizing mechanism comprises a water box, a water curtain is fixedly installed on the inner wall of the water box near the drainage pump, a water-absorbing sponge is fixedly installed on the inner wall of the water box near the water outlet pump, the water-absorbing sponge is driven to be compressed to discharge the absorbed cooling water after absorbing the cooling water input by the drainage pump, a partition is fixedly installed on the inner wall of the water box, a water outlet hole is opened in the partition, an air outlet pipe is arranged between the partition and the water curtain, the air outlet pipe is rotatably arranged in the water box and is driven, and air outlet holes are evenly opened in the air outlet pipe.

[0010] Preferably, the cooling and pressurizing mechanism is used in conjunction with battery cells that are an integral multiple of four;

[0011] The outer wall of the drainage pump is symmetrically connected with a first connecting pipe, one of which is sheathed with a water bag on the outer wall, and the end of the water bag away from the drainage pump is connected with the water box, the end of the first connecting pipe away from the water bag is embedded with a one-way valve, and the other first connecting pipe is connected with the heat dissipation copper tube, and the outer wall of the water outlet pump is symmetrically connected with a second connecting pipe, one of which is connected with the water box at one end away from the water outlet pump, and the other second connecting pipe is connected with the water box.

[0012] Preferably, the drainage pump and the water outlet pump are both rotatably installed with a rotating column inside, the inner wall annular array of the rotating column is air-tightly slidably installed with a plurality of partition slides, and the partition slides are air-tightly slidably connected to the drainage pump and the water outlet pump, and sealing rings are fixedly installed on both sides of the drainage pump and the water outlet pump, and the rotating column is air-tightly rotatably connected to the sealing ring during the process of being driven to rotate, and a temperature conduction support plate is fixedly connected between the sealing ring and the heat conduction plate, and a first rotating disk is fixedly installed on both sides of the rotating column, and an external box is fixedly installed on both sides of the first rotating disk, and a slider is slidably installed on the inner wall of the external box, and a slider is fixedly installed on the side of the slider away from the rotating column. A first linkage rod, a sealing slide is fixedly installed on the outer wall of the first linkage rod near the external box, the sealing slide is airtightly slidably connected to the external box, an expansion liquid is arranged inside the external box, a third linkage rod is rotatably installed on the outer wall of the first linkage rod away from the first rotating disk, the third linkage rod is cut into a first section and a second section, two telescopic blocks are fixedly installed on opposite ends of the first section and the second section, a sliding plate is slidably connected between the two telescopic blocks, a first spring is fixedly installed on the opposite side of the two telescopic blocks and between the two sliding plates, and the end of the third linkage rod away from the first linkage rod is driven to rotate.

[0013] Preferably, a support plate is fixedly installed at the lower position of both sides of the water box, a second bracket is fixedly installed at the upper end of the support plate, and a telescopic member is fixedly installed at the lower end surface of the second bracket corresponding to the position of the water box, the telescopic part of the telescopic member passes through the water box and is fixedly connected to a pressure plate, the pressure plate is slidably connected to the inner wall of the water box, the telescopic member has a fixed part and a telescopic part connected to each other, the outer wall of the telescopic part is sleeved with a sliding rod, and an L-shaped gear rack is symmetrically installed on the side of the sliding rod close to the air outlet pipe, the L-shaped gear rack consists of a support rod and a rack fixed to the lower end of the support rod, connecting members are rotatably installed on both sides of the water box, the connecting member passes through the water box and is fixedly connected to the air outlet pipe, and a rotating sleeve is fixedly installed on the end of the connecting member away from the water box, the rotating sleeve is meshed with the rack, support frames are fixedly installed on both sides of the water box, and the support The frame is symmetrically arranged on the outside of the connecting piece and the rotating sleeve, and a rotating sleeve is fixedly installed on the end of the support frame away from the water box, and an engaging ring is rotatably installed on the inner wall of the rotating sleeve. The engaging ring is externally connected to the refrigeration equipment and transports the refrigeration gas to the inside of the air outlet pipe through the connecting piece and the rotating sleeve. A sliding rheostat is fixedly installed on the side of the external box away from the water box, and the sliding rheostat includes a resistance rod and a sliding piece slidably arranged on the resistance rod, and the sliding piece is fixedly connected to the sealing slide plate. The sliding rheostat is electrically connected to the refrigeration equipment through an external power supply. In the process of the sliding piece being driven by the sealing slide plate to slide toward the axial direction of the first rotating disk, the resistance of the sliding rheostat increases, and a first bracket is fixedly installed on the inner wall of the engaging ring away from the rotating sleeve, and a fan is fixedly installed on the side of the first bracket close to the rotating sleeve.

[0014] Preferably, mounting plates are symmetrically installed on both sides of the second bracket, and a rotating tooth is rotatably installed on the side of the mounting plate away from the water box, and two one-way bearings are fixedly installed on one end of the rotating tooth away from the mounting plate, and the two one-way bearings can rotate in opposite directions, and a second rotating disk is fixedly installed on the outer ring of the one-way bearing away from the rotating tooth, and a connecting block is fixedly installed on the side of the second rotating disk away from the rotating tooth, and a second linkage rod is fixedly installed on the side of the connecting block away from the second rotating disk, and the outer wall of the second linkage rod is rotatably connected to the third linkage rod, and both ends of the sliding rod pass through the second bracket and are fixedly connected to a lifting plate, and tooth grooves are opened on both sides of the lifting plate, and the lifting plate meshes with the rotating teeth through the tooth grooves.

[0015] Preferably, it also includes a diversion mechanism, which includes a shunt box connected to the second connecting tube, a support seat is fixedly installed between the shunt box and the battery cell, two electromagnets are symmetrically installed at the position of the inner wall of the shunt box close to the second connecting tube, the two electromagnets are electrically connected to the thermistor respectively, a second spring is fixedly installed on the opposite side of the electromagnet, a shunt plate is fixedly installed on the opposite end of the second spring, the shunt plate is slidably connected to the inner wall of the shunt box, the shunt plate divides the shunt box into three shunt spaces, each of the shunt spaces is correspondingly connected to the heat dissipation copper tube, the upper and lower ends of the inner wall of the shunt box are provided with slide grooves, the upper and lower ends of the shunt plate are rotatably installed with rollers, and the rollers are rollingly connected to the slide grooves.

[0016] A battery module comprises a plurality of battery cells and a battery module cooling structure for cooling the battery cells.

[0017] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects:

[0018] First, through the setting of the rotating sleeve, when the rotating sleeve is driven to rotate, it will drive the meshing sleeve ring to rotate, thereby driving the fan to rotate. While the fan is rotating, it will blow the refrigerant gas of the refrigeration equipment outside the meshing sleeve ring back into the inside of the air outlet pipe, and blow it out through the air outlet to the cooling water flowing on the water curtain to reduce the heat of the circulating water. The temperature of the battery module is transferred through the heat conduction plate to allow the expansion fluid set inside the external box to expand and contract, drive the sealing slide to slide, and let the sealing slide drive the sliding piece to move to adjust the resistance value of the sliding rheostat, so that the refrigeration equipment can adjust the refrigeration power (cooling capacity), so that the expansion fluid expands or contracts through the heat change of the battery module, and adjusts the refrigeration capacity generated by the refrigeration equipment per unit time through expansion and contraction to cool the circulating cooling water, so that the cooling water maintains an appropriate temperature to cool the battery module, and avoids the situation where the cooling water temperature is too high and the subsequent cooling efficiency is insufficient.

[0019] Second, the expansion fluid is used to adjust the sliding amplitude of the slider, the sealing slide plate and the second bracket inside the external box, and in the process of the second turntable being driven to drive the linkage rod to rotate the first rotating disk and the rotating column, the expansion fluid is used to change the sliding amplitude of the slider, the sealing slide plate and the second bracket inside the external box through the heat of the battery module, and the second turntable drives the first rotating disk and the rotating column to rotate at different amplitudes through the linkage rod with different sliding amplitudes, so that the first rotating disk and the rotating column rotate at different amplitudes in the drainage pump and the water outlet pump to change the pumping flow rate of the cooling water, so that the cooling water circulates at different flow speeds inside the heat dissipation copper tube, thereby reducing the working temperature of the battery module.

[0020] Third, through the setting of thermistors, the thermistors can sense the temperature of the cooling gap and adjust the control device to send different resistance values ​​to the electromagnet, so that the electromagnet generates different magnetic forces, attracts the diverter plate to move, and adjusts the flow rate of cooling water in the heat dissipation copper tube set in the cooling gap, so as to output different flow rates to the cooling gaps with higher heat, so that the operating temperature of the battery cells in each cooling gap tends to the optimal operating temperature.

[0021] The device can adjust the flow rate of circulating cooling water during the operation of the battery module, accelerate the circulation speed of cooling water to cool the battery module, and reduce the temperature of cooling water during long-term operation, so that the battery module temperature can be kept lowered to avoid the problem of insufficient subsequent cooling. Moreover, through the setting of thermistors, local heating problems in the battery module can be detected, and cooling water with a larger flow rate can be delivered to the excessively heated part by adjusting the shunt space to further cool it. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 A schematic diagram of a heat dissipation copper tube of a battery module cooling structure of the present invention;

[0024] Figure 2 A three-dimensional schematic diagram of a battery module cooling structure of the present invention;

[0025] Figure 3 A schematic diagram of a circulating water mechanism of a battery module cooling structure of the present invention;

[0026] Figure 4 for Figure 3 The enlarged structural diagram at A in the middle;

[0027] Figure 5 It is a schematic diagram of a battery module cooling drainage pump decomposition column of the present invention;

[0028] Figure 6 A schematic diagram of a rotating column of a battery module cooling structure of the present invention;

[0029] Figure 7 A schematic diagram of a battery module cooling structure temperature reduction and pressurization mechanism of the present invention;

[0030] Figure 8This is a schematic diagram of the interior of a water-reducing box of a battery module cooling structure of the present invention;

[0031] Fig. 9 for Figure 8 The enlarged schematic diagram of point B in the middle;

[0032] Fig.10 A schematic diagram of a battery module cooling structure support frame of the present invention;

[0033] Fig.11 A schematic diagram of a battery module cooling structure telescopic member of the present invention;

[0034] Fig.12 This is a schematic diagram of the interior of a flow guiding mechanism of a battery module cooling structure of the present invention;

[0035] Fig.13 A three-dimensional schematic diagram of a battery module structure of the present invention;

[0036] Fig.14 It is a schematic diagram of the decomposition of a battery module structure of the present invention.

[0037] Figure numerals: 1, battery cell; 2, heat dissipation copper tube; 3, heat conduction plate; 4, circulating water mechanism; 401, temperature conduction support plate; 402, drainage pump; 403, water outlet pump; 404, first connecting pipe; 405, second connecting pipe; 406, water bag; 407, sealing ring; 408, rotating column; 409, partition slide plate; 410, first rotating disk; 411, external box; 412, slider; 413, first linkage rod; 414, sealing slide plate; 415, linkage rod; 416, telescopic block; 417, first spring; 418, one-way valve; 5, cooling and pressurizing mechanism; 501, water box; 502, sliding rheostat; 503, water curtain; 504, outlet Duct; 505, connecting piece; 506, rotating sleeve; 507, supporting frame; 508, rotating sliding sleeve; 509, engaging ring; 510, first bracket; 511, fan; 512, supporting plate; 513, second bracket; 514, telescopic piece; 515, sliding rod; 516, L-shaped gear rack; 517, lifting plate; 518, mounting plate; 519, rotating teeth; 520, second rotating disk; 521, connecting block; 522, second linkage rod; 523, pressing plate; 524, water-absorbing sponge; 6, flow guide mechanism; 601, supporting seat; 602, diverter box; 603, electromagnet; 604, second spring; 605, diverter plate; 606, roller. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] The present invention will be further described below in conjunction with the embodiments.

[0040] Example: Refer to Figures 1 to 14 A battery module cooling structure and a battery module, four pairs of battery cells 1 arranged side by side, a cooling gap is formed between each two adjacent pairs of battery cells 1, and a heat dissipation copper tube 2 is arranged in the cooling gap, and cooling water flows inside the heat dissipation copper tube 2; and further comprising:

[0041] The heat conducting plate 3, the lower end surface of the heat conducting plate 3 and the temperature-reducing gaps are provided with thermistors, the thermistors are respectively installed in the temperature-reducing gaps on both sides, and the heat conducting plate 3 is embedded in the upper end surface of the battery cell 1;

[0042] The heat dissipation copper tube 2 is arranged in the cooling gap, and the cooling water is arranged to flow inside the heat dissipation copper tube 2, so that the cooling water takes away the heat during the flow, so that the heat of the battery module during operation is reduced. The thermistor is an electronic component whose resistance value changes with the change of heat. The resistance value of the thermistor decreases as the heat increases.

[0043] The circulating water mechanism 4 includes a drainage pump 402 and a water outlet pump 403. The drainage pump 402 and the water outlet pump 403 are used to circulate the cooling water in the heat dissipation copper tube 2. The drainage pump 402 and the water outlet pump 403 adaptively adjust the pumping speed according to the working temperature of the battery cell 1. The setting of the circulating water mechanism 4 allows the cooling water to circulate inside the heat dissipation copper tube 2.

[0044] The cooling and pressurizing mechanism 5 comprises a water box 501, a water curtain 503 is fixedly installed on the inner wall of the water box 501 near the position of the drainage pump 402, a water-absorbing sponge 524 is fixedly installed on the inner wall of the water box 501 near the position of the water outlet pump 403, the water-absorbing sponge 524 is driven to compress to discharge the absorbed cooling water after absorbing the cooling water input by the drainage pump 402, a partition is fixedly installed on the inner wall of the water box 501, a water outlet hole is opened in the partition, an air outlet pipe 504 is arranged between the partition and the water curtain 503, the air outlet pipe 504 is rotatably arranged in the water box 501 and is driven, and air outlet holes are evenly opened in the air outlet pipe 504, when the cooling water circulates inside the heat dissipation copper tube 2, the cooling water can be further cooled by the setting of the cooling and pressurizing mechanism 5, and the pressure of the cooling water when it circulates is increased according to the heat generation, so as to accelerate the circulation of the cooling water inside the heat dissipation copper tube 2.

[0045] Reference Figure 2 , the cooling and pressurizing mechanism 5 is used in conjunction with a number of battery cells 1 that is an integral multiple of four;

[0046] The outer wall of the drain pump 402 is symmetrically connected to the first connecting pipes 404, one of the first connecting pipes 404 is provided with a water bag 406 on the outer wall, the end of the water bag 406 away from the drain pump 402 is connected to the water box 501, the end of the first connecting pipe 404 away from the water bag 406 is embedded with a one-way valve 418, the other first connecting pipe 404 is connected to the heat dissipation copper tube 2, the outer wall of the water outlet pump 403 is symmetrically connected to the second connecting pipes 405, one of the second connecting pipes 405 is connected to the water box 501 at one end away from the water outlet pump 403, and the other second connecting pipe 405 is connected to the water box 501. When the cooling water is pumped out by the drain pump 402, the cooling water can be stored in the water bag 406 to slow down the flow of cooling water into the water box 501 and avoid excessive cooling water from being transported into the absorbent sponge 524.

[0047] Reference Figures 2 to 6, the interior of the drainage pump 402 and the water outlet pump 403 are both rotatably installed with a rotating column 408, and the inner wall ring array of the rotating column 408 is air-tightly slidably installed with multiple partition slides 409, and the partition slides 409 are air-tightly slidably connected to the drainage pump 402 and the water outlet pump 403, and sealing rings 407 are fixedly installed on both sides of the drainage pump 402 and the water outlet pump 403. The rotating column 408 is air-tightly rotatably connected with the sealing ring 407 during the process of being driven to rotate, and a temperature conductive support plate 401 is fixedly connected between the sealing ring 407 and the heat conduction plate 3, and a first rotating disk 410 is fixedly installed on both sides of the rotating column 408, and an external box 411 is fixedly installed on both sides of the first rotating disk 410, and a slider 412 is slidably installed on the inner wall of the external box 411, and a first linkage rod 413 is fixedly installed on the side of the slider 412 away from the rotating column 408, and a sealing slider 414 is fixedly installed on the outer wall of the first linkage rod 413 near the external box 411 The sealing slide plate 414 is air-tightly slidably connected to the external box 411, and an expansion liquid is arranged inside the external box 411. A third linkage rod 415 is rotatably installed at a position on the outer wall of the first linkage rod 413 away from the first rotating disk 410. The third linkage rod 415 is cut into a first section and a second section. Two telescopic blocks 416 are fixedly installed at the opposite ends of the first section and the second section. A sliding plate is slidably connected between the two telescopic blocks 416. A first spring 417 is fixedly installed on the opposite side of the two telescopic blocks 416 and between the two sliding plates. The end of the third linkage rod 415 away from the first linkage rod 413 is driven to rotate. When the first rotating disk 410 is driven to rotate, the partition slide plate 409 slides on the inner wall of the first rotating disk 410 by its own weight and is air-tightly slidably connected to the inner walls of the drainage pump 402 and the water outlet pump 403, so as to push the cooling water into the drainage pump 402 or out of the water outlet pump 403.

[0048] Reference Figures 7 to 11A support plate 512 is fixedly installed at the lower position of both sides of the water box 501, a second bracket 513 is fixedly installed on the upper end of the support plate 512, and a telescopic member 514 is fixedly installed at the lower end surface of the second bracket 513 corresponding to the position of the water box 501. The telescopic part of the telescopic member 514 penetrates the water box 501 and is fixedly connected with a pressure plate 523. The pressure plate 523 is slidably connected to the inner wall of the water box 501. The telescopic member 514 has a fixed part and a telescopic part that are connected to each other. A sliding rod 515 is sleeved on the outer wall of the telescopic part. An L-shaped tooth frame 516 is symmetrically installed on one side of the sliding rod 515 close to the air outlet pipe 504. The L-shaped tooth frame 516 consists of a support rod and a support rod fixed at the lower end of the support rod. The rack is composed of a connecting piece 505 rotatably installed on both sides of the water box 501, and the connecting piece 505 penetrates the water box 501 and is fixedly connected to the air outlet pipe 504. A rotating sleeve 506 is fixedly installed on one end of the connecting piece 505 away from the water box 501, and the rotating sleeve 506 is meshed with the rack. Support frames 507 are fixedly installed on both sides of the water box 501, and the support frames 507 are symmetrically arranged on the outside of the connecting piece 505 and the rotating sleeve 506. A rotating sleeve 508 is fixedly installed on one end of the supporting frame 507 away from the water box 501, and an engaging ring 509 is rotatably installed on the inner wall of the rotating sleeve 508. The engaging ring 509 is externally connected to the refrigeration equipment and is connected The component 505 and the rotating sleeve 506 transport the refrigerant gas to the inside of the air outlet pipe 504. A sliding rheostat 502 is fixedly installed on the side of the external box 411 away from the water box 501. The sliding rheostat 502 includes a rheostat rod and a sliding piece slidably arranged on the rheostat rod. The sliding piece is fixedly connected to the sealing slide plate 414. The sliding rheostat 502 is electrically connected to the refrigeration equipment through an external power supply. When the sliding piece is driven by the sealing slide plate 414 to slide toward the axial direction of the first rotating disk 410, the resistance of the sliding rheostat 502 increases. The first bracket 510 is fixedly installed on the inner wall of the meshing ring 509 away from the rotating sleeve 508. The first bracket 51 A fan 511 is fixedly installed on one side close to the rotating sleeve 506. When the telescopic part 514 drives the telescopic part to extend and retract, it will drive the L-shaped rack 516 to rise and fall, thereby driving the rack to engage with the rotating sleeve 506 to rotate the rotating sleeve 506. When the external refrigeration equipment delivers the refrigerant gas to the inside of the air outlet pipe 504, the rotating sleeve 506 will drive the engaging ring 509 and the fan 511 to rotate, thereby making the rotating fan rotate in the opposite direction, so that the refrigerant gas efficiently enters the inside of the air outlet pipe 504, and is blown to the water curtain 503 through the air outlet hole, so that the cooling water flowing on the water curtain 503 is cooled down.

[0049] Reference Figures 1 to 10, mounting plates 518 are symmetrically mounted on both sides of the second bracket 513, a rotating tooth 519 is rotatably mounted on one side of the mounting plate 518 away from the water box 501, two one-way bearings are fixedly mounted on one end of the rotating tooth 519 away from the mounting plate 518, and the two one-way bearings are rotatable in opposite directions, a second rotating disk 520 is fixedly mounted on the outer ring of the one-way bearing away from the rotating tooth 519, a connecting block 521 is fixedly mounted on one side of the second rotating disk 520 away from the rotating tooth 519, and the connecting block 521 is away from the second rotating disk 52 0 is fixedly installed with a second linkage rod 522, and the outer wall of the second linkage rod 522 is rotatably connected to the third linkage rod 415. Both ends of the sliding rod 515 penetrate the second bracket 513 and are fixedly connected with a lifting plate 517. Tooth grooves are provided on both sides of the lifting plate 517. The lifting plate 517 is engaged with the rotating teeth 519 through the tooth grooves and is driven to rotate through the second rotating disk 520. The second rotating disk 520 will drive the first rotating disk 410 and the rotating column 408 to rotate together through the third linkage rod 415.

[0050] Reference Fig.12 , further comprising a flow guiding mechanism 6, the flow guiding mechanism 6 comprising a shunt box 602 connected to the second connecting pipe 405, a support seat 601 fixedly installed between the shunt box 602 and the battery cell 1, two electromagnets 603 symmetrically installed at a position near the second connecting pipe 405 on the inner wall of the shunt box 602, the two electromagnets 603 are electrically connected to the thermistor respectively, a second spring 604 is fixedly installed on the opposite side of the electromagnet 603, a shunt plate 605 is fixedly installed on the opposite end of the second spring 604, and the shunt plate 605 is slidably connected to the inner wall of the shunt box 602 The diverter plate 605 divides the diverter box 602 into three diverter spaces, each of which is connected to the heat dissipation copper tube 2. The upper and lower ends of the inner wall of the diverter box 602 are provided with slide grooves. The upper and lower ends of the diverter plate 605 are rotatably installed with rollers 606, and the rollers 606 are rollingly connected to the slide grooves. The heat of the battery module is detected by thermistors. When the heat is higher, the resistance value of the thermistor is higher, and the current transmitted to the electromagnet 603 is smaller, so that the magnetism generated by the electromagnet 603 is weaker, so that the diverter plate 605 slides closer to adjust the diversion of the cooling water.

[0051] The working principle of the present invention is as follows:

[0052] The telescopic part is telescopically extended by opening the telescopic member 514, and the telescopic part drives the sliding rod 515 and the lifting plate 517 to rise and fall synchronously during the telescopic process. The lifting plate 517 drives the rotating teeth 519 to rotate through the tooth grooves during the descent process, and drives the second rotating disk 520 to rotate through the one-way bearing, and then drives the connecting block 521 and the second linkage rod 522 to rotate synchronously through the second rotating disk 520. During the rotation of the connecting block 521 and the second linkage rod 522, since the second linkage rod 522 rotates along the edge of the connecting block 521, the second linkage rod 522 drives the first linkage rod 522 through the third linkage rod 415 during the rotation process. The rod 413 rotates, so that the first linkage rod 413 rotates with the axis of the rotating column 408 as the axis, so that the rotating column 408 drives the partition slide 409 to rotate together, and the partition slide 409 slides and contacts with the inner wall of the rotating column 408 while rotating. The multiple partition slides 409 arranged therebetween will divide the cooling water inside the drainage pump 402 into multiple parts, and as the partition slide 409 is driven by the rotating column 408 to rotate and is airtightly slidably connected with the inner walls of the drainage pump 402 and the outlet pump 403, the cooling water formed in multiple parts will eventually be pushed out, thereby driving the cooling water to flow;

[0053] It should be noted that two groups of second rotating disks 520 are provided, and each group of second rotating disks 520 is connected to the rotating gear 519 through a one-way bearing. The second rotating disk 520 that drives the rotating column 408 provided on the inner wall of the drainage pump 402 to rotate is C, and the second rotating disk 520 that drives the rotating column 408 provided on the inner wall of the water outlet pump 403 to rotate is D (see attached Fig.10), the lifting plate 517 will mesh with the rotating tooth 519 during the descent process, and the rotating tooth 519 will drive C to rotate through the one-way bearing as the lifting plate 517 descends, while the set D will not rotate through the one-way bearing. The lifting plate 517 will drive the rotating tooth 519 to rotate during the ascent process, and the rotating tooth 519 will drive D to rotate through the one-way bearing as the lifting plate 517 rises, while the set C will not rotate. Therefore, when the lifting plate 517 is driven to descend, it will drive the drainage pump 402, and the drainage pump 402 will pump out the cooling water in the heat dissipation copper tube 2 through the first connecting pipe 404. The pumped cooling water will be input into the water bag 406 through the first connecting pipe 404, and the inside of the water bag 406 will expand. The expanded water bag 406 will discharge the discharged cooling water into the inside of the water box 501 through the one-way valve 418 due to its own elasticity. When the cooling water enters the water box 501, it will disperse and flow into the water curtain 503, and then flow to the water-absorbing sponge 524 through the water outlet hole opened in the partition and be absorbed by the water-absorbing sponge 524. The water-absorbing sponge 524 will slowly expand when absorbing the cooling water. When the water-absorbing sponge 524 absorbs the cooling water, the cooling water backflow can be avoided. The driving end of the telescopic member 514 is extended and retracted to drive the pressure plate 523 to compress the water-absorbing sponge 524, so that the cooling water absorbed inside is transported to the inside of the second connecting pipe 405 (when the water-absorbing sponge 524 is compressed, part of the cooling water will flow back to the position of the water curtain 503 in the water box 501 through the water outlet hole. Because the refluxed cooling water is less and does not prevent most of the cooling water from flowing to the inside of the second connecting pipe 405 when the water-absorbing sponge 524 is compressed, after the reflux, due to the height difference set in the water box 501 (see attached Figure 8 ) The refluxed cooling water will still flow back through the water outlet hole and be absorbed by the water-absorbing sponge 524), and then be transported to the inside of the diversion box 602 through the rotating column 408 and the partition slide plate 409 driven to rotate inside the water outlet pump 403;

[0054] It should be noted that when the telescopic member 514 is extended and retracted, the telescopic part will simultaneously drive the slide bar 515 and the L-shaped gear rack 516 to rise and fall. When the L-shaped gear rack 516 is lowered, it will drive the rotating sleeve 506 to rotate through the setting of the rack. When the rotating sleeve 506 rotates, it will drive the meshing ring 509 and the fan 511 to rotate, and the refrigerant gas will be blown into the interior of the air outlet pipe 504 in the reverse direction, and blown onto the cooling water flowing in the water curtain 503 through the air outlet hole, so that the cooling water can be cooled down. In this way, when the heat of the cooling water increases when the battery cell works for a long time, the cooling performance is insufficient due to the increase in the heat of the cooling water. After the heat of the cooling water is reduced, when it is discharged into the inside of the diverter box 602 through the water outlet pump 403, the diverter box 602 can re-discharge the cooling water with reduced heat into the inside of the heat dissipation copper tube 2 for cooling.

[0055] It should also be explained that, through the setting of the heat conducting plate 3, the heat conducting plate 3 can transfer the heat of the battery cell 1 during operation to the sealing ring 407, and the sealing ring transfers the temperature to the external box 411 through the first rotating disk 410 during the heating process, so that the temperature inside the external box 411 increases, and the expansion liquid set inside the external box 411 expands, and the expanded liquid pushes the slider 412 to slide in the inner wall of the external box 411, pushing the slider 412, the sealing slide plate 414 and the first linkage rod 413 away from The axis of the first rotating disk 410 pushes the slider 412, the sealing slide plate 414 and the first linkage rod 413 to the edge of the first rotating disk 410. In this way, when the first linkage rod 413 is driven to drive the first rotating disk 410 to rotate, the rotation amplitude of the first rotating disk 410 will be maximized. Similarly, when the temperature of the battery module remains stable, the expansion fluid set in the external box 411 will not expand or the expansion amplitude will not change much, and the slider 412, the sealing slide plate 414 and the first linkage rod 413 will be It will slide inside the external box 411 to the center position close to the first rotating disk 410. When the first linkage rod 413 is driven to drive the first rotating disk 410 to rotate, the rotation amplitude will be synchronously reduced. When the first linkage rod 413 slides inside the external box 411 through the expansion fluid, the diameter of the third linkage rod 415 will also change. Through the telescopic block 416 and the first spring 417, the sliding elasticity of the telescopic block 416 and the first spring 417 can compensate for the diameter change of the third linkage rod 415, so as to avoid that the second linkage rod 522 cannot normally drive the first linkage rod 413, the first rotating disk 410 and the rotating column 408 to rotate through the third linkage rod 415. In this way, the heat generated by the battery cell 1 during operation can be transferred through the heat conducting plate 3 through the heat conducting plate 3, so as to adjust the power of the drainage pump 402 and the water outlet pump 403 when pumping cooling water, so that the rotating column 408 set by the drainage pump 402 and the water outlet pump 403 can accelerate the pumping speed of cooling water with different amplitudes of rotation, so as to accelerate or slow down the circulation of cooling water;

[0056] The temperature of the battery module is sensed by the heat conducting plate 3 to expand and contract the expansion fluid set inside the external box 411, thereby driving the slider 412, the sealing slider 414 and the first linkage rod 413 to slide inside the external box 411. When the sealing slider 414 slides, it will drive the slider to slide, thereby adjusting the resistance value of the sliding rheostat 502. The resistance adjusted by the sliding rheostat 502 will change the output power of the refrigeration equipment connected to the engagement ring 509. When the heat transferred by the battery monomer through the heat conducting plate 3 is high, the sliding amplitude of the sealing slider 414 will drive the resistance value of the sliding rheostat 502 to decrease, so the refrigeration power of the refrigeration equipment will increase. When the heat transferred by the battery monomer through the heat conducting plate 3 is low, the sliding amplitude of the sealing slider 414 will drive the resistance value of the sliding rheostat 502 to increase, and the refrigeration power of the refrigeration equipment will decrease, so that the refrigeration power of the refrigeration equipment is adaptively adjusted through the different heat of the battery monomer to cool the cooling water (the refrigeration equipment can use the semiconductor refrigeration plate in the prior art);

[0057] When the cooling water is discharged into the inside of the diverter box 602 through the water outlet pump 403, the thermistors arranged on the lower end surface of the heat conducting plate 3 respectively control the electromagnets 603. The thermistors can sense the temperature in the cooling gap to Fig.14 The three groups of heat dissipation copper tubes 2 arranged in the middle are used to illustrate that when the temperature of the heat dissipation copper tubes 2 on both sides is greater than the temperature of the heat dissipation copper tube 2 in the middle, the thermistor will change its resistance value as the temperature is too high. Therefore, when the temperature of the heat dissipation copper tubes 2 on both sides is too high, the resistance through the thermistor increases, thereby weakening the magnetic force of the electromagnet 603 due to the reduction of the current passing through the electromagnet 603, and the elastic force of the second spring 604 can push the shunt plate 605 to slide relatively close in the slide groove through the roller 606 to increase the flow of cooling water to the shunt space on both sides and weaken the delivery amount of the heat dissipation copper tube 2 at the position of the middle shunt space, so that the cooling water can flow inside the heat dissipation copper tubes 2 arranged on both sides to reduce the heat of the battery module. When the heat returns to normal, the thermistor will return to its initial resistance value, and the amount of electricity delivered to the electromagnet 603 will return to normal, so that the shunt plate 605 can slide inside the shunt box 602, so that the shunt space returns to its original position, and the cooling water can flow evenly to the three groups of heat dissipation copper tubes 2 respectively.

[0058] Reference Figure 13 to Figure 14A battery module, the battery module includes a plurality of battery cells 1 and a battery module cooling structure for cooling the battery cells 1. A plurality of heat dissipation copper tubes 2 are provided, and the plurality of heat dissipation copper tubes 2 can be respectively installed in the cooling gap to cool the battery cells 1. Circulating cooling water is provided inside the heat dissipation copper tubes 2, and the circulating cooling water can flow inside the heat dissipation copper tubes 2. The heat dissipation copper tubes 2 will absorb the heat generated by the battery cells 1 when they are working, and the circulating cooling water will take away the passing heat during the circulating flow, thereby achieving the purpose of heat conversion and reducing the heat generated by the battery cells 1 when they are working.

[0059] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A battery module cooling structure, comprising four pairs of battery cells (1) arranged side by side, characterized in that: A cooling gap is formed between each two adjacent pairs of battery cells (1), and a heat dissipation copper tube (2) is provided in the cooling gap, and cooling water flows inside the heat dissipation copper tube (2); and further comprising: A heat conducting plate (3), the lower end surface of the heat conducting plate (3) and in each cooling gap being provided with a thermistor, the thermistors being respectively installed in the cooling gaps on both sides, the heat conducting plate (3) being embedded in the upper end surface of the battery cell (1); A circulating water mechanism (4), the circulating water mechanism (4) comprising a drainage pump (402) and a water outlet pump (403), the drainage pump (402) and the water outlet pump (403) being used to circulate cooling water in the heat dissipation copper tube (2), the drainage pump (402) and the water outlet pump (403) adaptively adjusting pumping speeds according to the operating temperature of the battery cell (1); A cooling and pressurizing mechanism (5), the cooling and pressurizing mechanism (5) comprising a water box (501), a water curtain (503) being fixedly mounted on the inner wall of the water box (501) at a position close to the drainage pump (402), a water-absorbing sponge (524) being fixedly mounted on the inner wall of the water box (501) at a position close to the water outlet pump (403), the water-absorbing sponge (524) being driven to compress after absorbing the cooling water input by the drainage pump (402) to discharge the absorbed cooling water, a partition being fixedly mounted on the inner wall of the water box (501), a water outlet hole being provided in the partition, an air outlet pipe (504) being provided between the partition and the water curtain (503), the air outlet pipe (504) being rotatably mounted in the water box (501) and being driven, and air outlet holes being uniformly provided in the air outlet pipe (504); The battery cell (1) further comprises a flow guiding mechanism (6), the flow guiding mechanism (6) comprising a flow dividing box (602) connected to the second connecting tube (405), a support seat (601) fixedly installed between the flow dividing box (602) and the battery cell (1), two electromagnets (603) symmetrically installed at a position close to the second connecting tube (405) on the inner wall of the flow dividing box (602), the two electromagnets (603) being electrically connected to thermistors respectively, and a second spring (604) fixedly installed on the opposite side of the electromagnet (603) A diverter plate (605) is fixedly mounted on one end of the second spring (604), and the diverter plate (605) is slidably connected to the inner wall of the diverter box (602). The diverter plate (605) divides the diverter box (602) into three diverter spaces, and each of the diverter spaces is connected to a corresponding heat dissipation copper tube (2). Slide grooves are provided at the upper and lower ends of the inner wall of the diverter box (602), and rollers (606) are rotatably mounted on the upper and lower ends of the diverter plate (605), and the rollers (606) are rollingly connected to the slide grooves.

2. A battery module cooling structure according to claim 1, characterized in that: The temperature reduction and pressure increase mechanism (5) is used in conjunction with battery cells (1) in an integral multiple of four; The outer wall of the drainage pump (402) is symmetrically connected to first connecting pipes (404), wherein the outer wall of one of the first connecting pipes (404) is sheathed with a water bag (406), and one end of the water bag (406) away from the drainage pump (402) is connected to the water box (501), and one end of the first connecting pipe (404) away from the water bag (406) is embedded with a one-way valve (418), and the other first connecting pipe (404) is connected to the heat dissipation copper pipe (2), and the outer wall of the water outlet pump (403) is symmetrically connected to second connecting pipes (405), wherein one end of the second connecting pipe (405) away from the water outlet pump (403) is connected to the water box (501), and the other second connecting pipe (405) is connected to the water box (501).

3. A battery module cooling structure according to claim 1, characterized in that: The drainage pump (402) and the water outlet pump (403) are both rotatably mounted with a rotating column (408), and a plurality of partition slides (409) are airtightly slidably mounted on the inner wall of the rotating column (408) in an annular array, and the partition slides (409) are airtightly slidably connected to the drainage pump (402) and the water outlet pump (403). Sealing rings (407) are fixedly mounted on both sides of the drainage pump (402) and the water outlet pump (403). The rotating column (408) is airtightly rotatably connected to the sealing ring (407) when being driven to rotate, and a heat conduction support plate (401) is fixedly connected between the sealing ring (407) and the heat conduction plate (3). First rotating disks (410) are fixedly mounted on both sides of the rotating column (408), and external boxes (411) are fixedly mounted on both sides of the first rotating disk (410). A slider (412) is slidably mounted on the inner wall of the external box (411), and the slider (412) is away from the rotating disk. A first linkage rod (413) is fixedly mounted on one side of the moving column (408); a sealing slide plate (414) is fixedly mounted on an outer wall of the first linkage rod (413) at a position close to the external box (411); the sealing slide plate (414) is airtightly slidably connected to the external box (411); an expansion fluid is provided inside the external box (411); a third linkage rod (415) is rotatably mounted on an outer wall of the first linkage rod (413) at a position away from the first rotating disk (410); the third linkage rod (415) is cut into a first section and a second section; two telescopic blocks (416) are fixedly mounted on opposite ends of the first section and the second section; a sliding plate is slidably connected between the two telescopic blocks (416); a first spring (417) is fixedly mounted on opposite sides of the two telescopic blocks (416) and between the two sliding plates; and an end of the third linkage rod (415) away from the first linkage rod (413) is driven to rotate.

4. A battery module cooling structure according to claim 3, characterized in that: Support plates (512) are fixedly installed at lower positions on both sides of the water box (501); a second bracket (513) is fixedly installed at the upper end of the support plate (512); a telescopic member (514) is fixedly installed at a position corresponding to the water box (501) on the lower end surface of the second bracket (513); the telescopic portion of the telescopic member (514) penetrates the water box (501) and is fixedly connected to a pressure plate (523); the pressure plate (523) is slidably connected to the inner wall of the water box (501); the telescopic member (514) comprises a fixed portion and a telescopic portion which are connected to each other; and a sliding rod (515) is sleeved on the outer wall of the telescopic portion. An L-shaped tooth frame (516) is symmetrically installed on one side of the sliding rod (515) close to the air outlet pipe (504), and the L-shaped tooth frame (516) is composed of a support rod and a rack fixed to the lower end of the support rod. Connecting members (505) are rotatably installed on both sides of the water box (501), and the connecting member (505) penetrates the water box (501) and is fixedly connected to the air outlet pipe (504). A rotating sleeve (506) is fixedly installed on one end of the connecting member (505) away from the water box (501), and the rotating sleeve (506) is meshed with the rack. Support frames (507) are fixedly installed on both sides of the water box (501). The support frame (507) is symmetrically arranged on the outside of the connecting piece (505) and the rotating sleeve (506); a rotating sleeve (508) is fixedly mounted on one end of the support frame (507) away from the water box (501); an engaging ring (509) is rotatably mounted on the inner wall of the rotating sleeve (508); the engaging ring (509) is externally connected to a refrigeration device and transmits refrigeration gas to the inside of the air outlet pipe (504) through the connecting piece (505) and the rotating sleeve (506); a sliding rheostat (502) is fixedly mounted on one side of the external box (411) away from the water box (501); and the sliding rheostat (502) is fixedly mounted on the other side of the external box (411) away from the water box (501). The invention relates to a refrigeration device for cooling the refrigeration device and a first rotating disk (410). The refrigeration device comprises a first rotating disk (410) and a first sliding plate (502). The sliding plate is fixedly connected to the sealing plate (414). The sliding rheostat (502) is electrically connected to the refrigeration device via an external power supply. When the sliding plate is driven by the sealing plate (414) to slide in the axial direction of the first rotating disk (410), the resistance of the sliding rheostat (502) increases. The first bracket (510) is fixedly installed on the inner wall of the engaging ring (509) away from the rotating sleeve (508). The first bracket (510) is fixedly installed on the side close to the rotating sleeve (506) with a fan (511).

5. A battery module cooling structure according to claim 4, characterized in that: Mounting plates (518) are symmetrically mounted on both sides of the second bracket (513); a rotating tooth (519) is rotatably mounted on one side of the mounting plate (518) away from the water box (501); two one-way bearings are fixedly mounted on one end of the rotating tooth (519) away from the mounting plate (518); the two one-way bearings are rotatable in opposite directions; a second rotating disk (520) is fixedly mounted on the outer ring of the one-way bearing away from the rotating tooth (519); the second rotating disk (520) is away from the rotating tooth (519). A connecting block (521) is fixedly mounted on one side of the sliding rod (515); a second linkage rod (522) is fixedly mounted on a side of the connecting block (521) away from the second rotating disk (520); an outer wall of the second linkage rod (522) is rotatably connected to a third linkage rod (415); both ends of the sliding rod (515) pass through the second bracket (513) and are fixedly connected to a lifting plate (517); tooth grooves are formed on both sides of the lifting plate (517); the lifting plate (517) meshes with the rotating teeth (519) through the tooth grooves.

6. A battery module, characterized in that: The battery module is composed of a plurality of battery cells (1) and a battery module cooling structure as described in any one of claims 1 to 5 for cooling the battery cells.

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