Battery module heating and pressurizing device

Abstract

The present invention provides a battery module heating and pressurizing device, which includes a frame, a battery seat, a heating and pressurizing component, and a pressurizing component. The pressurizing component includes a first slide rail, a plurality of positioning blocks, and a pressing member arranged on the positioning blocks. A variable distance block is arranged on the positioning block, and a variable distance chute extending towards the adjacent variable distance block is formed on the variable distance block. A stop edge and a hook are respectively arranged at both ends of the variable distance chute. The stop edge is fixed on the positioning block, and the hook extends out of the positioning block and slides in the adjacent variable distance chute; the pressurizing component includes a first position and a second position. When in the first position, a plurality of variable distance blocks are unfolded, and the hooks of the variable distance blocks abut against the hooks of the adjacent variable distance blocks; when in the second position, a plurality of variable distance blocks are tightened, and the hooks of the variable distance blocks abut against the stop edges of the adjacent variable distance blocks; through the above structure, the distance between the pressing members can be changed by adjusting the variable distance blocks, so as to adapt to battery modules of different sizes, realize rapid model change, and improve production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of battery manufacturing equipment, and in particular to a battery module heating and pressurizing device. Background Art

[0002] With the development of technology, power batteries have gradually replaced traditional energy sources and are used in automobiles to provide power. During the production process of battery modules, it is necessary to heat and pressurize the battery modules composed of several battery cells to improve the firmness and reliability of the batteries. However, for battery modules of different sizes, their lateral widths and pole positions are different. Redesigning a matching heating and pressurizing device is costly and cumbersome.

[0003] For example, in the pressurizing and heating device of the battery module disclosed in the utility model patent CN215869500U, when the size of the battery module to be pressurized and heated changes, first, the mounting plate needs to be removed from the first mounting rack, and then the pressing component thereon needs to be removed, replaced, and then installed into the mounting hole according to the size of the new battery module to adapt to the position change of the pole of the new battery module. This design scheme is still relatively cumbersome, and the end plate pressing components cannot be adjusted for multiple battery modules. Summary of the Invention

[0004] The purpose of the present invention is to provide a battery module heating and pressurizing device to solve the above problems.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A battery module heating and pressurizing device,

[0007] including:

[0008] A frame;

[0009] A battery seat for placing the battery module;

[0010] Two heating and pressurizing components for heating the sides of the battery module, relatively and movably arranged on both sides of the battery seat;

[0011] A first driving mechanism for driving the two heating and pressurizing components to approach or move away from each other;

[0012] Two pressurizing components for pressurizing the battery module, respectively relatively arranged on the two heating and pressurizing components;

[0013] A second driving mechanism for driving the two pressurizing components to rise or fall, arranged on the heating and pressurizing components;

[0014] The pressurizing assembly includes a first slide rail, a plurality of positioning blocks arranged on the first slide rail, and pressing members arranged on the positioning blocks. A variable distance block is arranged on the positioning block. A variable distance chute extending in the direction of its adjacent variable distance block is formed on the variable distance block. A stop edge and a hook are respectively arranged at two ends of the variable distance chute. The stop edge is fixed on the positioning block, and the hook extends out of the positioning block and slides in the adjacent variable distance chute.

[0015] The pressurizing assembly includes a first position and a second position, and the first and second positions are switched to adapt to battery modules of corresponding sizes.

[0016] When in the first position, a plurality of the variable distance blocks expand, the hooks of the variable distance blocks abut against the hooks of its adjacent variable distance blocks, and the positioning blocks move away from each other.

[0017] When in the second position, a plurality of the variable distance blocks contract, the hooks of the variable distance blocks abut against the stop edges of its adjacent variable distance blocks, and the positioning blocks move closer to each other.

[0018] As a further improved technical solution of the present invention, the pressing member includes a first pressing member and a second pressing member. The first pressing member is used to press the front, middle, and rear end plates of the battery module, and the second pressing member is used to press the electrode posts of the battery module.

[0019] A pressing head block, a middle block, and a pressing tail block are respectively arranged at the front end, middle, and rear end of the first slide rail. First pressing members are respectively arranged on the pressing head block, the middle block, and the pressing tail block.

[0020] A second pressing member is arranged on the positioning block.

[0021] As a further improved technical solution of the present invention, the pressurizing assembly further includes a quick-change pressing mechanism. The quick-change pressing mechanism includes a fixing plate and a plurality of third pressing members fixed on the fixing plate. The structure of the third pressing member is the same as that of the second pressing member, and the distance between adjacent third pressing members is the same as the distance between adjacent second pressing members when in the second position.

[0022] As a further improved technical solution of the present invention, the first pressing member includes a first sleeve, a first guide rod, and a first pressing block arranged at the end of the first guide rod. A step is arranged at the upper part inside the first sleeve. The first guide rod can slide in the first sleeve. A first annular boss extending radially outward is arranged at the top of the first guide rod. A first spring is arranged between the first annular boss and the step. A locking member is arranged at the bottom of the first sleeve to limit and fix the first annular boss and the spring. The first pressing block is fixed to the first guide rod.

[0023] As a further improved technical solution of the present invention, the second pressing member includes a second guide rod and a second pressing block. A second annular boss extends radially outward from the top of the second guide rod, and the bottom end of the second annular boss abuts against the upper end of the positioning block. Outside the second guide rod, a second sleeve, a second spring, and a third sleeve are sequentially sleeved from the second annular boss downwards. Gaskets are respectively arranged at the upper and lower ends of the second spring. The second sleeve is fixed on the positioning block. A third annular boss extends radially outward from the bottom of the second sleeve, and the top of the third annular boss abuts against the lower end of the positioning block. The second guide rod can slide within the second sleeve. The third sleeve is fixed to the second guide rod. The upper part of the second pressing block extends into the third sleeve and is fixed to the third sleeve. A fourth annular boss is arranged at the lower end of the second pressing block, and the outer diameter of the fourth annular boss is greater than the inner diameter of the bottom end of the third sleeve.

[0024] As a further improved technical solution of the present invention, when in the second position, a first mounting hole is provided on the middle positioning block, and the first mounting hole is used for mounting a fourth pressing member, and the fourth pressing member has the same structure as the first pressing member.

[0025] As a further improved technical solution of the present invention, the length of the variable pitch chute is the difference between the distances between the adjacent pole columns of the two battery modules before and after switching.

[0026] As a further improved technical solution of the present invention, the heating and pressing assembly includes a first bracket and a side plate perpendicular to the first bracket. A heating plate is arranged on the side plate, and a heat insulation plate is arranged between the heating plate and the side plate. The first bracket is driven by a first driving mechanism to drive the side plate and the heating plate to approach or move away from the battery module.

[0027] As a further improved technical solution of the present invention, the heating and pressing assembly further includes a first limiting mechanism. The first limiting mechanism includes a limiting guide post fixed on the first bracket and a limiting block arranged on the frame. The limiting block is located in the movement direction of the limiting guide post. A plurality of second mounting holes for mounting the limiting block are arranged on the frame, and the second mounting holes are used for adjusting the distance between the heating and pressing assembly and the battery module.

[0028] As a further improved technical solution of the present invention, the pressing assembly includes a second bracket. A horizontal mounting plate extending towards the battery module is fixed on the second bracket. The first slide rail is arranged on the mounting plate. The second driving mechanism is arranged on the first bracket, and the second driving mechanism drives the second bracket to perform a lifting movement.

[0029] The beneficial effects of the present invention are as follows:

[0030] With the above structure, the distance between the pressing members can be changed by adjusting the variable pitch block, adapting to battery modules of different sizes, achieving fast and convenient tool changeover, improving production efficiency, reducing production costs, and saving floor space of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic front view of the battery module heating and pressing device;

[0032] Figure 2 is a schematic rear view of the battery module heating and pressing device;

[0033] Figure 3 is a schematic view of the variable pitch block;

[0034] Figure 4 is a schematic left view of the pressing assembly;

[0035] Figure 5 is a schematic right view of the pressing assembly;

[0036] Figure 6 is Figure 5 the enlarged view at A in

[0037] Figure 7 is a schematic view of the quick-change pressing mechanism;

[0038] Figure 8 is a schematic view of the second battery module;

[0039] Figure 9 is a schematic view of the pressing assembly in the first position;

[0040] Figure 10 is a schematic view of the pressing assembly in the second position;

[0041] Figure 11 is a schematic view of the first pressing member;

[0042] Figure 12 is a sectional view of the first pressing member taken along the B-B direction;

[0043] Figure 13 is a schematic view of the second pressing member;

[0044] Figure 14 is a sectional view of the second pressing member taken along the C-C direction;

[0045] Figure 15 is a schematic bottom view of the battery module heating and pressing device;

[0046] Figure 16 is Figure 2 the enlarged view at D in

[0047] Wherein:

[0048] 100 - Rack;

[0049] 200 - Battery holder;

[0050] 300 - Heating and pressing assembly, 301 - First bracket, 302 - Side plate, 303 - Heating plate, 304 - Heat insulation plate, 305 - Temperature sensor, 306 - Slide block, 307 - Second slide rail, 308 - Limit guide post, 309 - Limit block, 310 - Silicone pad;

[0051] 400 - First driving mechanism;

[0052] 500 - Pressing assembly, 501 - First slide rail, 502 - Positioning block, 5021 - First positioning block, 5022 - Second positioning block, 5023 - Third positioning block, 5024 - Relief groove, 5025 - Fourth positioning block, 5026 - First mounting hole, 5027 - Fifth positioning block, 503 - Variable pitch block, 5031 - Variable pitch slide groove, 5032 - Baffle, 5033 - Hook, 504 - Second bracket, 505 - Mounting plate, 506 - First pressing member, 5061 - First sleeve, 5062 - First guide rod, 5063 - First pressing block, 5064 - Step, 5065 - First annular boss, 5066 - First spring, 5067 - Locking member, 5068 - Elastic pin, 5069 - Rubber ring, 507 - Second pressing member, 5071 - Second guide rod, 5072 - Second pressing block, 5073 - Second annular boss, 5074 - Second sleeve, 5075 - Second spring, 5076 - Third sleeve, 5077 - Third annular boss, 5078 - Fourth annular boss, 5079 - Gasket, 508 - Pressing head block, 509 - Middle block, 510 - Pressing tail block, 511 - Quick - change pressing mechanism, 5111 - Fixed plate, 5112 - Third pressing member;

[0053] 600 - Second driving mechanism;

[0054] 700 - First battery module;

[0055] 800 - Second battery module;

[0056] 901 - First position sensor, 902 - Second position sensor, 903 - Third position sensor. Detailed implementation manners

[0057] The present invention will be described in detail below in conjunction with the specific implementation manners shown in the accompanying drawings. However, these implementation manners do not limit the present invention, and any structural, method, or functional transformation made by those of ordinary skill in the art based on these implementation manners is included within the protection scope of the present invention.

[0058] If the present invention involves orientations (such as up, down, left, right, front, back, outside, inside, etc.) during its description, it is necessary to define the involved orientations. For example, "To clearly express the positions and directions described within the present invention, with reference to the instrument operator, the end closer to the operator is the proximal end, and the end farther from the operator is the distal end." Or define it with reference to the paper surface, etc. Of course, if the positional relationship between the two is defined by mutual reference in the subsequent description, it may not be defined here.

[0059] As used in the present invention, "up", "down", "left", "right", "front", and "back" refer to Figure 1 , Figure 2 , Figure 8 the "up", "down", "left", "right", "front", and "back" directions marked in

[0060] As shown in Figure 1 , Figure 2 , Figure 15 , a battery module heating and pressurizing device includes:

[0061] A frame 100;

[0062] A battery seat 200 for placing the battery module;

[0063] Two heating and pressurizing components 300 for heating the sides of the battery module, relatively and movably arranged on both sides of the battery seat 200;

[0064] A first driving mechanism 400 for driving the two heating and pressurizing components 300 to approach or separate from each other;

[0065] Two pressurizing components 500 for pressurizing the battery module terminals, respectively relatively arranged on the two heating and pressurizing components 300;

[0066] A second driving mechanism 600 for driving the two pressurizing components 500 to rise or fall, arranged on the heating and pressurizing components 300.

[0067] As shown in Figures 3 - 5 , the pressurizing component 500 includes a first slide rail 501, a plurality of positioning blocks 502 arranged on the first slide rail 501, and a pressing member arranged on the positioning blocks 502. A variable distance block 503 is arranged on the positioning blocks 502. A variable distance chute 5031 extending in the direction of its adjacent variable distance block 503 is provided on the variable distance block 503. Two stop edges 5032 and hooks 5033 are respectively arranged at both ends of the variable distance chute 5031. The stop edge 5032 is fixed on the positioning block 502, and the hook 5033 extends out of the positioning block 502 and slides in the adjacent variable distance chute 5031;

[0068] The pressurizing assembly 500 includes a first position and a second position. When in the first position, a plurality of the pitch-changing blocks 503 are deployed, and the hooks 5033 of the pitch-changing blocks 503 abut against the hooks 5033 of the adjacent pitch-changing blocks 503, and the positioning blocks 502 are away from each other.

[0069] When in the second position, a plurality of the pitch-changing blocks 503 are tightened, and the hooks 5033 of the pitch-changing blocks 503 abut against the rib edges 5032 of the adjacent pitch-changing blocks 503, and the positioning blocks 502 are close to each other.

[0070] In this embodiment, when the pitch-changing block 503 has pitch-changing chutes 5031 on both sides thereof, the opening directions of the two pitch-changing chutes 5031 of the pitch-changing block 503 may be opposite, that is, the pitch-changing block 503 is in an S shape, or the opening directions of the two pitch-changing chutes 5031 of the pitch-changing block 503 may also be the same, that is, the pitch-changing block 503 is in an E shape.

[0071] The length inside the pitch-changing chute 5031 is the difference between the distances between the respective adjacent pole posts of the two battery modules before and after the switching.

[0072] By using the above-mentioned pitch-changing block 503, rapid switching of two different sizes of battery modules can be achieved. In addition, by providing a plurality of fixed-distance card slots in the pitch-changing chute 5031 and engaging the hooks 5033 into different fixed-distance card slots, the distance between the second pressing members 507 can be adjusted, thereby being applicable to rapid switching of more than two different sizes of battery modules.

[0073] The pressing member includes a first pressing member 506 and a second pressing member 507. The first pressing member 506 is used to press the end plate of the battery module, and the second pressing member 507 is used to press the pole post of the battery module;

[0074] A pressing head block 508, a middle block 509, and a pressing tail block 510 are respectively arranged at the front end, middle part, and rear end of the slide rail. First pressing members 506 are respectively arranged on the pressing head block 508, the middle block 509, and the pressing tail block 510, and are respectively used to press the front end plate, the middle end plate, and the tail end plate of the battery module;

[0075] A second pressing member 507 is arranged on the positioning block 502.

[0076] As Figure 7As shown, the pressing assembly 500 further includes a quick-change pressing mechanism 511. The quick-change pressing mechanism 511 includes a fixing plate 5111 and a plurality of third pressing members 5112 fixed on the fixing plate 5111. The structure of the third pressing members 5112 is the same as that of the second pressing members 507, and the distance between adjacent third pressing members 5112 is the same as the distance between adjacent second pressing members 507 when in the second position.

[0077] Generally, the quick-change pressing mechanism 511 is set on the frame 100 for standby, and then the quick-change pressing mechanism 511 is installed on the first slide rail 501 when different-sized battery modules need to be processed.

[0078] As Figure 6 shown, when in the second position, a first mounting hole 5026 is provided on the middle positioning block 502. The first mounting hole 5026 is used to mount a fourth pressing member, and the structure of the fourth pressing member is the same as that of the first pressing member 506.

[0079] The following provides an embodiment to illustrate the design principle of the present invention:

[0080] As Figure 1 、 Figure 8 shown, two different-sized battery modules are provided: The first battery module 700 has 7 pole posts at the front and 6 pole posts at the rear. The second battery module 800 has 8 pole posts both at the front and the rear. The distance between adjacent pole posts of the first battery module 700 is greater than the distance between adjacent pole posts of the second battery module 800.

[0081] Define a first pressing mechanism. The first pressing mechanism is located between the pressing head block 508 and the middle block. When the first pressing mechanism presses the first battery module 700, the variable-distance block 503, the positioning block 502 and the second pressing member 507 responsible for pressing the first 7 pole posts are defined. Define a second pressing mechanism. The second pressing mechanism is located between the middle block and the pressing tail block 510. When the second pressing mechanism presses the first battery module 700, the variable-distance block 503, the positioning block 502 and the second pressing member 507 responsible for pressing the last 6 pole posts are defined.

[0082] For the convenience of use, as Figure 9 、 Figure 10As shown, the first pressing mechanism includes a second pressing member 507, a first positioning block 5021, a first variable-spacing block 503 disposed on the first positioning block 5021, a second positioning block 5022, and a second variable-spacing block 503 disposed on the second positioning block 5022. The first positioning block 5021 is adjacent to the pressing head block 508, and there are 6 second positioning blocks 5022. The width of the second positioning block 5022 is the distance between two adjacent pole columns of the second battery module 800, so that the switching is faster and more stable. The specific structural dimensions of the first variable-spacing block 503 and the second variable-spacing block 503 are designed according to requirements.

[0083] The second pressing mechanism includes a second pressing member 507, a third positioning block 5023, a third variable-spacing block 503 disposed on the third positioning block 5023, a fourth positioning block 5025, a fourth variable-spacing block 503 disposed on the fourth positioning block 5025, a fifth positioning block 5027, and a fifth variable-spacing block 503 disposed on the fifth positioning block 5027. The third positioning block 5023 is adjacent to the middle block, and the fourth positioning block 5025 is adjacent to the third positioning block 5023. There are 5 fifth positioning blocks 5027, and the structure of the fifth positioning block 5027 is the same as that of the second positioning block 5022. The specific structural dimensions of the third variable-spacing block 503, the fourth variable-spacing block 503, and the fifth variable-spacing block 503 are designed according to requirements.

[0084] For the convenience of use, a relief groove 5024 is provided on the third positioning block 5023. The relief groove 5024 is used to fit the shape of the middle block, so that the middle block does not need to be removed during the model change; a first mounting hole 5026 is provided on the fourth positioning block 5025, so the width of the fourth positioning block 5025 relative to the fifth positioning block 5027 can be designed to be wider.

[0085] When used to press the first battery module 700, all the variable-spacing blocks 503 are in the first position. A plurality of the second pressing members 507 correspond to the pole columns to be pressed. The pressing head block 508, the middle block 509, and the pressing tail block 510 respectively correspond to the front end plate, the middle end plate, and the tail end plate of the first battery module 700, as Figure 9 shown.

[0086] When used to pressurize the second battery module 800, keep the position of the pressure head block 508 unchanged, remove the first pressing member 506 on the middle block, adjust all the variable pitch blocks 503 to the second position, adjust the position of the first positioning block 5021 so that the second pressing member 507 on the first positioning block 5021 faces the frontmost pole post of the second battery module 800 below, install the first pressing member 506 on the original middle block into the first mounting hole 5026 on the fourth positioning block 5025, remove the pressing tail block 510 and the first pressing member 506 fixed on the pressing tail block 510, then install and slide the quick-change pressing mechanism 511 to an appropriate position, and finally install the pressing tail block 510 and the first pressing member 506 fixed on the pressing tail block 510. At this time, several of the second pressing members 507 correspond to the pole posts to be pressurized, the pressure head block 508 and the pressing tail block 510 respectively correspond to the front end plate and the tail end plate of the second battery module 800, and the first pressing member 506 installed in the first mounting hole 5026 corresponds to the middle end plate, as Figure 10 shown.

[0087] As Figure 11 , Figure 12 shown, the first pressing member 506 includes a first sleeve 5061, a first guide rod 5062, and a first pressing block 5063 provided at the end of the first guide rod 5062. A step 5064 is provided in the upper part of the first sleeve 5061. The first guide rod 5062 can slide in the first sleeve 5061. A first annular boss 5065 extending radially outward is provided at the top of the first guide rod 5062. A first spring 5066 is provided between the first annular boss 5065 and the step 5064. A locking member 5067 is provided at the bottom of the first sleeve 5061 to limit and fix the first annular boss 5065 and the spring. The first pressing block 5063 and the first guide rod 5062 are fixed by an elastic pin 5068 and a rubber ring 5069. When the first pressing member 506 presses down on the end plate, the first pressing block 5063 drives the first guide rod 5062 to move upward, and the first spring 5066 is compressed and gives a reaction force to the end plate through the first pressing block 5063.

[0088] As Figure 13 , Figure 14As shown, the second pressing member 507 includes a second guide rod 5071 and a second pressing block 5072. A second annular boss 5073 extends radially outward from the top of the second guide rod 5071. The bottom end of the second annular boss 5073 abuts against the upper end of the positioning block 502. Outside the second guide rod 5071, a second sleeve 5074, a second spring 5075, and a third sleeve 5076 are sequentially sleeved from the second annular boss 5073 from top to bottom. Gaskets 5079 are respectively arranged at the upper end and the lower end of the second spring 5075. The second sleeve 5074 is fixed on the positioning block 502. A third annular boss 5077 extends radially outward from the bottom of the second sleeve 5074. The top of the third annular boss 5077 abuts against the lower end of the positioning block 502. The second guide rod 5071 can slide within the second sleeve 5074. The third sleeve 5076 is fixed to the second guide rod 5071. The upper part of the second pressing block 5072 extends into the third sleeve 5076 and is fixed to the third sleeve 5076. A fourth annular boss 5078 is arranged at the lower end of the second pressing block 5072. The outer diameter of the fourth annular boss 5078 is greater than the inner diameter of the bottom end of the third sleeve 5076. When the second pressing member 507 presses down on the terminal post, the second pressing block 5072 drives the third sleeve 5076 and the second guide rod 5071 to move upward. The second spring 5075 is compressed and gives a reaction force to the terminal post through the second pressing block 5072, and the flatness adjustment is achieved through the gasket 5079 to realize flexible pressing.

[0089] As Figure 15 shown, the heating and pressing assembly 300 includes a first bracket 301 and a side plate 302 perpendicular to the first bracket 301. A heating plate 303 is arranged on the side plate 302. The first bracket 301 is driven by a first driving mechanism 400 to drive the side plate 302 and the heating plate 303 to approach or move away from the battery module. The first driving mechanism 400 can be a cylinder.

[0090] A heat insulation plate 304 is arranged between the heating plate 303 and the side plate 302. The heat insulation plate 304 is used to prevent the high temperature transmitted by the heating plate 303 during the heating process from affecting the operation of other components. A silica gel pad 310 is arranged on the surface of the heating plate 303 close to the battery module, which can be in close contact with the battery module and has good heat transfer effect.

[0091] The heating and pressing assembly 300 further includes a plurality of temperature sensors 305, and the temperature sensors 305 are used to monitor the temperature of the heating plate 303 in real time.

[0092] The heating and pressing assembly 300 further includes a first guiding mechanism. The first guiding mechanism includes a slider 306 fixed on the first bracket 301 and a second sliding rail 307 fixed on the frame 100. The first driving mechanism 400 drives the first bracket 301 to move, and the slider 306 slides on the second sliding rail 307 along with the first bracket 301, ensuring the smoothness of the movement.

[0093] The heating and pressing assembly 300 further includes a first limiting mechanism. The first limiting mechanism includes a limiting guide post 308 fixed on the first bracket 301 and a limiting block 309 arranged on the frame 100. The limiting block 309 is located in the moving direction of the limiting guide post 308. A number of second mounting holes at different positions are provided on the frame 100. For battery modules of different sizes, the limiting block 309 is fixed in the corresponding second mounting hole to adjust the distance between the heating and pressing assembly 300 and the battery module.

[0094] As Figure 4 、 Figure 5 shown, the pressing assembly 500 includes a second bracket 504. The second driving mechanism 600 is arranged on the first bracket 301. The second driving mechanism 600 drives the second bracket 504 to move up and down. The second driving mechanism 600 can be a hydraulic cylinder.

[0095] A horizontal mounting plate 505 extending towards the battery module is fixed on the second bracket 504. The first sliding rail 501 is arranged on the mounting plate 505.

[0096] The pressing assembly 500 shown also includes a second guiding mechanism. The second guiding mechanism is used to improve the movement stability of the pressing assembly 500 during the lifting process. Its structure is similar to that of the first guiding mechanism and will not be described in detail here.

[0097] In addition, a first position sensor 901 is provided at the bottom of the battery holder 200. The first position sensor 901 is used to detect whether there is a battery module to be processed on the battery holder 200. Second position sensors 902 are provided on both sides of the battery holder 200. The second position sensors 902 are used to detect whether the left - right position of the battery module is offset. The second position sensors 902 are opposed - type photoelectric sensors. Third position sensors 903 are provided at both ends of the diagonal of the battery holder 200. The third position sensors 903 are used to detect whether the top position of the battery module is too high. The third position sensors 903 are opposed - type photoelectric sensors. The size of the battery holder 200 can also be designed in multiple models according to the size of the battery module to be processed and placed on the frame 100 for standby, and the corresponding - sized battery holder 200 is switched when processing battery modules of different sizes.

[0098] With the above structure, the distance between the pressing members can be changed by adjusting the variable pitch block 503, so as to adapt to battery modules of different sizes, realizing fast and convenient model change, improving production efficiency, reducing production costs and saving the floor space of the equipment.

[0099] It should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0100] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present invention, and they are not used to limit the protection scope of the present invention. Any equivalent embodiments or changes made without departing from the technical spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery module heating and pressurizing device, characterized in that: It includes: A frame (100); A battery seat (200) for placing the battery module; Two heating and pressurizing components (300) for heating the sides of the battery module, relatively and movably arranged on both sides of the battery seat (200); A first driving mechanism (400) for driving the two heating and pressurizing components (300) to approach or separate from each other; Two pressurizing components (500) for pressurizing the battery module, respectively relatively arranged on the two heating and pressurizing components (300); A second driving mechanism (600) for driving the two pressurizing components (500) to rise or fall, arranged on the heating and pressurizing component (300); The pressurizing component (500) includes a first slide rail (501), a plurality of positioning blocks (502) arranged on the first slide rail (501), and a pressing member arranged on the positioning block (502). A variable distance block (503) is arranged on the positioning block (502). A variable distance chute (5031) extending in the direction of its adjacent variable distance block (503) is provided on the variable distance block (503). Two ends of the variable distance chute (5031) are respectively provided with a stop edge (5032) and a hook (5033). The stop edge (5032) is fixed on the positioning block (502), and the hook (5033) extends out of the positioning block (502) and slides in the adjacent variable distance chute (5031); The pressing member includes a first pressing member (506) and a second pressing member (507). The first pressing member (506) is used to press the front, middle, and rear end plates of the battery module, and the second pressing member (507) is used to press the pole posts of the battery module; The pressurizing component (500) includes a first position and a second position, and the first and second positions are switched to adapt to battery modules of corresponding sizes; The length inside the variable distance chute (5031) is the difference between the distances between the respective adjacent pole posts of the two battery modules before and after switching; When in the first position, a plurality of the variable distance blocks (503) are unfolded, and the hooks (5033) of the variable distance blocks (503) abut against the hooks (5033) of the adjacent variable distance blocks (503), and the positioning blocks (502) are separated from each other; When in the second position, a plurality of the variable distance blocks (503) are tightened, and the hooks (5033) of the variable distance blocks (503) abut against the stop edges (5032) of the adjacent variable distance blocks (503), and the positioning blocks (502) are close to each other.

2. The battery module heating and pressurizing device according to claim 1, characterized in that: A pressing head block (508), a middle block (509), and a pressing tail block (510) are respectively arranged at the front end, middle part, and rear end of the first slide rail (501), and a first pressing member (506) is respectively arranged on the pressing head block (508), the middle block (509), and the pressing tail block (510); A second pressing member (507) is arranged on the positioning block (502).

3. The battery module heating and pressurizing device according to claim 2, characterized in that: The pressurizing assembly (500) further includes a quick-change pressing mechanism (511), the quick-change pressing mechanism (511) includes a fixing plate (5111) and a number of third pressing members (5112) fixed to the fixing plate (5111), the structure of the third pressing members (5112) is the same as that of the second pressing members (507), and the distance between adjacent third pressing members (5112) is the same as the distance between adjacent second pressing members (507) when in the second position.

4. The battery module heating and pressurizing device according to claim 2, wherein: The first pressing member (506) includes a first sleeve (5061), a first guide rod (5062), and a first pressing block (5063) provided at the end of the first guide rod (5062). An upper portion of the first sleeve (5061) is provided with a step (5064). The first guide rod (5062) is slidable within the first sleeve (5061). A top of the first guide rod (5062) is provided with a first annular boss (5065) extending radially outward. A first spring (5066) is provided between the first annular boss (5065) and the step (5064). A bottom of the first sleeve (5061) is provided with a locking member (5067) to limit and fix the first annular boss (5065) and the spring. The first pressing block (5063) is fixed to the first guide rod (5062).

5. The battery module heating and pressurizing device according to claim 2, wherein: The second pressing member (507) includes a second guide rod (5071) and a second pressing block (5072). A top of the second guide rod (5071) extends radially outward with a second annular boss (5073). A bottom end of the second annular boss (5073) abuts against an upper end of a positioning block (502). Outside the second guide rod (5071), a second sleeve (5074), a second spring (5075), and a third sleeve (5076) are sequentially sleeved from the second annular boss (5073) from top to bottom. Gaskets (5079) are provided at upper and lower ends of the second spring (5075). The second sleeve (5074) is fixed to the positioning block (502). A bottom of the second sleeve (5074) extends radially outward with a third annular boss (5077). A top of the third annular boss (5077) abuts against a lower end of the positioning block (502). The second guide rod (5071) is slidable within the second sleeve (5074). The third sleeve (5076) is fixed to the second guide rod (5071). An upper portion of the second pressing block (5072) extends into the third sleeve (5076) and is fixed to the third sleeve (5076). A lower end of the second pressing block (5072) is provided with a fourth annular boss (5078), and an outer diameter of the fourth annular boss (5078) is greater than an inner diameter of a bottom end of the third sleeve (5076).

6. The battery module heating and pressurizing device according to claim 2, wherein: When in the second position, a first mounting hole (5026) is formed in the middle positioning block (502). The first mounting hole (5026) is used for mounting a fourth pressing member, and the fourth pressing member has the same structure as the first pressing member (506).

7. The battery module heating and pressing device according to claim 1, wherein: The heating and pressing assembly (300) includes a first bracket (301) and a side plate (302) perpendicular to the first bracket (301). A heating plate (303) is provided on the side plate (302), and a heat insulation plate (304) is provided between the heating plate (303) and the side plate (302). The first bracket (301) is driven by a first driving mechanism (400) to drive the side plate (302) and the heating plate (303) to approach or move away from the battery module.

8. The battery module heating and pressing device according to claim 7, wherein: The heating and pressing assembly (300) further includes a first limiting mechanism. The first limiting mechanism includes a limiting guide post (308) fixed to the first bracket (301) and a limiting block (309) provided on the frame (100). The limiting block (309) is located in the movement direction of the limiting guide post (308). A plurality of second mounting holes for mounting the limiting block (309) are provided on the frame (100), and the second mounting holes are used to adjust the distance between the heating and pressing assembly (300) and the battery module.

9. The battery module heating and pressing device according to claim 7, wherein: The pressing assembly (500) includes a second bracket (504). A horizontal mounting plate (505) extending towards the battery module is fixed on the second bracket (504). The first slide rail (501) is provided on the mounting plate (505). The second driving mechanism (600) is provided on the first bracket (301), and the second driving mechanism (600) drives the second bracket (504) to perform a lifting movement.

Images