Lithium battery module for forklift
By designing a lithium battery module for forklifts and using mechanical energy to complete the liquid circulation, the problem of circulating pumps in the prior art increased power consumption, achieving more efficient power battery life and cooling of the lithium battery pack.
Patent Information
- Application Number
- CN202510236132.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2025-05-23
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In order to prevent overheating during use, existing lithium battery modules need to be installed with liquid-cooled pipes and use a circulating pump to drive the liquid flow, which not only increases power consumption, but also affects the electric energy life of the forklift.
A lithium battery module for forklifts is designed, which uses a flat circulation channel to communicate with the liquid-cooled pipe. Through the coordination of the reciprocating rod and the pushing seat, the forklift's mechanical energy in the lifting operation is used to complete the circulation of liquid, avoiding dependence on the circulation pump.
The liquid circulation is achieved without the need for a circulating pump, which reduces electricity consumption and improves the electric energy life of the forklift. At the same time, by increasing the contact surface between liquid and air and using heat dissipation fins, the liquid is effectively promoted and the cooling of the lithium battery pack is ensured.
Smart Images
Figure CN120033375A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of batteries, and in particular to a lithium battery module for a forklift. Background Art
[0002] As a kind of secondary battery, lithium battery module is widely used because it can restore power through charging and achieve repeated use. Lithium battery module is composed of multiple lithium-ion cells connected in series or in parallel. Lithium battery module is often used in new energy vehicles as a power source due to its advantages such as large power storage capacity. At the same time, lithium battery module is also often used in forklifts to provide power for forklifts.
[0003] During the use of existing lithium battery modules, in order to prevent the lithium battery modules from overheating, liquid cooling pipes are often installed in the lithium battery modules for liquid cooling. In order to ensure the circulation of liquid in the pipes, circulating pumps and other facilities are generally used to drive the liquid to flow. The operation of the circulating pump consumes the power of the lithium battery module, which accelerates the power consumption of the lithium battery module and affects the battery life of the forklift. Summary of the invention
[0004] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a lithium battery module for a forklift.
[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a lithium battery module for a forklift, comprising a lithium battery pack and a liquid cooling tube interspersed and arranged inside the lithium battery pack, a circulating flow channel is arranged in front of the lithium battery pack, the circulating flow channel is flat, the circulating flow channel is connected to the liquid cooling tube, a mounting frame is fixedly installed on one side of the circulating flow channel, both sides of the interior of the mounting frame are provided with clamping grooves, a No. 1 bolt is penetrated and tightened at the side corner of the mounting frame, a rod sleeve is fixedly connected to the upper end of the circulating flow channel, a reciprocating rod is slidably installed inside the rod sleeve, the reciprocating rod extends into the interior of the circulating flow channel, a flow-pushing seat is fixedly installed on the lower end of the reciprocating rod, the flow-pushing seat is slidably installed in the interior of the circulating flow channel, two sealing plates are symmetrically slidably installed on the upper end of the flow-pushing seat, a synchronous frame is fixedly installed on the upper end of the reciprocating rod, a slot is provided at the lower part of the synchronous frame, a No. 2 bolt is penetrated and tightened at the lower end of the synchronous frame, and a heat sink is arranged on the other side of the circulating flow channel.
[0006] Preferably, the lower end of the circulation channel is fixedly connected with an inlet pipe, the end of the inlet pipe is fixedly connected with a No. 1 hose, and the end of the No. 1 hose is fixedly connected with the outlet of the liquid cooling pipe.
[0007] Preferably, an outlet pipe is fixedly connected at the upper edge of the rear end of the circulation channel, a No. 2 hose is fixedly connected to the end of the outlet pipe, and the end of the No. 2 hose is fixedly connected to the inlet of the liquid cooling pipe.
[0008] Preferably, two guide pillars extend symmetrically at both side edges of the upper end of the sealing plate, an L-shaped frame is slidably mounted on the outer surface of the guide pillar, the end of the L-shaped frame is fixed to the flow-pushing seat, and a positioning cap is coaxially inlaid on the end of the guide pillar, and the positioning cap is fitted to the upper end of the L-shaped frame.
[0009] Preferably, the heat sink includes a plurality of heat dissipation fins extending in a linear array on the other side of the circulation channel, a carrier shell is provided at the lower portion of the other side of the circulation channel, the carrier shell is connected to the synchronous frame, a plurality of threaded sleeves are rotatably mounted on the side linear array of the carrier shell, the ends of the plurality of threaded sleeves are coaxially connected to a brush cylinder, and the plurality of heat dissipation fins are located between the plurality of brush cylinders.
[0010] Preferably, the threaded sleeve passes through the interior of the carrier shell, and the outer surfaces of the plurality of threaded sleeves are coaxially inlaid with gears, the gears are located inside the carrier shell, and the plurality of gears are meshed in sequence. A notch is opened at one end of the carrier shell, and a tooth plate is provided at the notch of the carrier shell, and the gears located at one side edge are meshed with the tooth plate, and the tooth plate is connected to the circulation channel.
[0011] Preferably, a plurality of connecting frames are extended from the linear array on the side of the tooth plate, and the ends of the connecting frames are fixed to the circulating flow channel, and the end of the core shaft of the brush cylinder is provided with an external thread, and the end of the core shaft of the brush cylinder is screwed with the internal thread of the threaded sleeve through the external thread, and a socket is provided in the middle of the upper end of the carrier shell, and a solid shell frame is fixedly installed on the side of the synchronization frame, and the solid shell frame is located above the slot, and the end of the solid shell frame is inserted into the interior of the socket, and a pin sleeve is provided at the rear end of the socket, and an assembly pin is coaxially provided inside the pin sleeve, and two ends of the assembly pin pass through the two ends of the pin sleeve, and the assembly pin and the pin sleeve are slidably matched, and the assembly pin passes through the socket and the solid shell frame.
[0012] Preferably, a concave frame is fixedly installed at the lower end of the socket, and the end of the concave frame is fixed to the carrier shell, a fixed sleeve frame is fixedly installed on the outer surface of the pin sleeve, and the end of the fixed sleeve frame is fixed to the socket, and pin holes are penetrated through the rear end of the socket and the rear end of the solid shell frame, and the assembly pin is inserted into the inside of the pin hole, and a convex cap is coaxially inlaid on the outer surface of the assembly pin, and the convex cap is slidably installed in the pin sleeve, and a pin fixing spring is wound around the outer side of the assembly pin, one end of the pin fixing spring is fixed to the convex cap, and the other end of the pin fixing spring is fixed to the inner rear end of the pin sleeve.
[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. When the fork claw seat is lifted and lowered on the forklift arm, the synchronous frame will rise and fall synchronously with the fork claw seat, thereby driving the push flow seat to slide up and down in the circulation flow channel. When the push flow seat moves up, the sealing plate is aligned with the push flow seat due to the pressure of the liquid in the circulation flow channel to form a whole, so that the liquid in the circulation flow channel is pushed upward through the push flow seat and the sealing plate, and enters the liquid cooling pipe through the No. 2 hose. At the same time, the original liquid in the liquid cooling pipe enters the circulation flow channel through the No. 1 hose. When the push flow seat moves down, the sealing plate moves up due to the pressure of the liquid in the circulation flow channel, and is misaligned with the push flow seat, so that it will not push the liquid during the downward movement, so that the circulation is completed with the help of the forklift during the lifting operation. The process does not require the addition of facilities such as a circulation pump, which effectively avoids the consumption of electric energy and improves the electric energy endurance of the forklift.
[0014] 2. Clamp the mounting frame on both sides of the forklift arm, and turn the No. 1 bolt to press against the forklift arm to fix the circulating flow channel on the forklift arm. At this time, the fixing groove on the mounting frame is engaged with the cross arm to reinforce the circulating flow channel so that the circulating flow channel will not shift up and down during lifting. At the same time, the slot on the synchronous frame is clamped on the fork claw seat, and then the No. 2 bolt is turned to press against the fork claw seat to fix the synchronous frame and the fork claw seat. In this way, the assembly with the forklift arm and other facilities can be completed. The assembly process does not need to damage the forklift arm and other structures, which effectively facilitates the assembly.
[0015] 3. Through the flat circulation channel of the peripheral device, the contact area between the liquid and the air is effectively increased during the circulation process, which promotes the heat dissipation of the liquid. At the same time, under the action of the heat dissipation fins, the heat dissipation of the liquid is further promoted, thereby ensuring the cooling of the lithium battery pack. When the synchronous frame is lifted or lowered, the brush barrel on the carrier shell will be lifted or lowered synchronously with the surface of the heat dissipation fins. At the same time, the gear rolls on the gear plate to drive the brush barrel to rotate, so as to remove dust attached to the heat dissipation fins, so that the heat dissipation fins can be in direct contact with the air for heat dissipation, so as to further promote the heat dissipation of the liquid, ensure the cooling of the lithium battery pack, avoid overheating of the lithium battery pack, and effectively improve the safety of the lithium battery pack during use. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the circulation flow channel of the present invention; Figure 3 is an internal view of the circulation channel of the present invention; Figure 4 For the present invention Figure 2 A magnified view of middle; Figure 5 For the present invention Figure 3 Enlarged view of middle B; Figure 6It is a schematic diagram of the carrier shell of the present invention; Figure 7 An internal view of the pin sleeve of the present invention; Figure 8 This is an assembly view of the mounting bracket and the forklift arm of the present invention.
[0017] In the attached drawings, the parts represented by the reference numerals are as follows: 1. lithium battery pack; 2. liquid cooling pipe; 3. No. 1 hose; 4. inlet pipe; 5. circulation channel; 6. outlet pipe; 7. synchronous frame; 8. clamping groove; 9. mounting frame; 10. No. 1 bolt; 11. No. 2 hose; 12. reciprocating rod; 13. rod sleeve; 14. heat dissipation fin; 15. connecting frame; 16. tooth plate; 17. carrier shell; 18. gear; 19. Brush cylinder; 20, threaded sleeve; 21, flow-pushing seat; 22, sealing plate; 23, L-shaped frame; 24, positioning cap; 25, guide column; 26, slot; 27, No. 2 bolt; 28, shell frame; 29, pin sleeve; 30, concave frame; 31, socket; 32, pin hole; 33, convex cap; 34, pin-fixing spring; 35, assembly pin; 36, sleeve frame; 37, forklift arm; 38, cross arm; 39, fork claw seat. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.
[0019] The present invention provides a technical solution: Figure 1-Figure 8A lithium battery module for a forklift shown in the figure includes a lithium battery pack 1 and a liquid cooling tube 2 inserted and arranged inside the lithium battery pack 1. The liquid cooling tube 2 serves to provide liquid flow to cool the lithium battery pack 1. Since the liquid cooling tube 2 is inserted into the lithium battery pack 1 for liquid cooling is a prior art and has been widely used, it is not described in detail here. A circulation channel 5 is provided in front of the lithium battery pack 1. The circulation channel 5 is flat, which effectively increases the contact surface between the liquid and the air during the circulation process, promotes the heat dissipation of the liquid, and the circulation channel 5 The circulating flow channel 5 is connected to the liquid cooling pipe 2. A mounting frame 9 is fixedly installed on one side of the circulating flow channel 5. Both sides of the inner side of the mounting frame 9 are provided with fixing grooves 8. The fixing grooves 8 are engaged with the cross arm 38, which can reinforce the circulating flow channel 5 so that the circulating flow channel 5 will not shift up and down when it is lifted or lowered, effectively ensuring the firmness of the circulating flow channel 5 after installation. A No. 1 bolt 10 is tightened through the side corner of the mounting frame 9. The No. 1 bolt 10 can be pressed against the forklift arm 37 to fix the mounting frame 9 on the forklift arm 37. The upper end of the circulating flow channel 5 is fixedly connected to the A rod sleeve 13 is provided, and a reciprocating rod 12 is slidably installed inside the rod sleeve 13. A sealing ring or other facilities can be installed between the rod sleeve 13 and the reciprocating rod 12 for sealing to prevent liquid from leaking out from between the rod sleeve 13 and the reciprocating rod 12. Because this sealing method is a prior art and has been widely used, it is not described in detail here. The reciprocating rod 12 extends into the interior of the circulation channel 5. A flow-pushing seat 21 is fixedly installed at the lower end of the reciprocating rod 12. The flow-pushing seat 21 is slidably installed inside the circulation channel 5. The upper end of the flow-pushing seat 21 is symmetrically slidably installed. There are two sealing plates 22, and the cooperation of the flow plug seat 21 and the sealing plate 22 plays a role in pushing the liquid. The upper end of the reciprocating rod 12 is fixedly installed with a synchronous frame 7, and the synchronous frame 7 plays a role in driving the reciprocating rod 12 to move. A slot 26 is opened at the lower part of the synchronous frame 7, and a No. 2 bolt 27 is penetrated and tightened through the lower end of the synchronous frame 7. The slot 26 on the synchronous frame 7 is clamped on the fork claw seat 39, and then the No. 2 bolt 27 is rotated to press on the fork claw seat 39, so that the synchronous frame 7 and the fork claw seat 39 can be fixed. A heat sink is provided on the other side of the circulating flow channel 5.
[0020] The lower end of the circulation channel 5 is fixedly connected to an inlet pipe 4, and the end of the inlet pipe 4 is fixedly connected to a No. 1 hose 3. The inlet pipe 4 and the No. 1 hose 3 serve to connect the circulation channel 5 with the outlet of the liquid cooling pipe 2, and the end of the No. 1 hose 3 is fixedly connected to the outlet of the liquid cooling pipe 2.
[0021] An outlet pipe 6 is fixedly connected to the upper edge of the rear end of the circulation channel 5, and a No. 2 hose 11 is fixedly connected to the end of the outlet pipe 6. The end of the No. 2 hose 11 is fixedly connected to the inlet of the liquid cooling pipe 2. The outlet pipe 6 and the No. 2 hose 11 play a role in connecting the circulation channel 5 with the inlet of the liquid cooling pipe 2.
[0022] Two guide pillars 25 extend symmetrically at the edges of both sides of the upper end of the sealing plate 22. An L-shaped frame 23 is slidably installed on the outer surface of the guide pillar 25. The end of the L-shaped frame 23 is fixed to the plug flow seat 21. The cooperation between the guide pillar 25 and the L-shaped frame 23 guides the sealing plate 22. A positioning cap 24 is coaxially inlaid on the end of the guide pillar 25. The positioning cap 24 is attached to the upper end of the L-shaped frame 23. The positioning cap 24 can position the sealing plate 22 to ensure that when the plug flow seat 21 moves up, the sealing plate 22 can be subjected to the pressure of the liquid in the circulation channel 5 and be flush with the plug flow seat 21 to form a whole.
[0023] The heat sink includes a plurality of heat sinks 14 extending in a linear array on the other side of the circulation channel 5. The heat sinks 14 can increase the contact surface with the air and promote the heat dissipation of the liquid. A carrier shell 17 is provided at the lower part of the other side of the circulation channel 5. The carrier shell 17 is connected to the synchronous frame 7. A plurality of threaded sleeves 20 are rotatably installed in a linear array on the side of the carrier shell 17. The carrier shell 17 plays a role in supporting the threaded sleeves 20. The ends of the plurality of threaded sleeves 20 are coaxially connected with a brush cylinder 19. The threaded sleeve 20 plays a role in connecting the brush cylinder 19 and driving the brush cylinder 19 to rotate. The plurality of heat sinks 14 are located between the plurality of brush cylinders 19. The brush cylinder 19 can remove dust and the like attached to the heat sink 14, so that the heat sink 14 can be in direct contact with the air for heat dissipation, so as to further promote the heat dissipation of the liquid.
[0024] The threaded sleeve 20 passes through the interior of the carrier shell 17, and the outer surfaces of the multiple threaded sleeves 20 are coaxially inlaid with gears 18. The gears 18 are located inside the carrier shell 17. The gears 18 play a role in allowing the multiple threaded sleeves 20 to rotate synchronously. The multiple gears 18 are meshed in sequence. A notch is opened at one end of the carrier shell 17, and a tooth plate 16 is arranged at the notch of the carrier shell 17. The notch on the carrier shell 17 plays a role in allowing the gears 18 and the tooth plate 16 to mesh normally. The gears 18 located at one side edge are meshed with the tooth plate 16, and the tooth plate 16 is connected to the circulation channel 5.
[0025] A plurality of connecting frames 15 are extended from the linear array on the side of the tooth plate 16, and the ends of the connecting frames 15 are fixed to the circulation flow channel 5. The connecting frames 15 play the role of fixing the tooth plate 16. The end of the core shaft of the brush cylinder 19 is provided with an external thread, and the end of the core shaft of the brush cylinder 19 is screwed with the internal thread of the threaded sleeve 20 through the external thread. By rotating the core shaft of the brush cylinder 19, the core shaft of the brush cylinder 19 can be screwed out from the end of the threaded sleeve 20, so that the two can be separated to replace the brush cylinder 19. A socket 31 is provided in the middle of the upper end of the carrier shell 17, and a solid shell frame 28 is fixedly installed on the side of the synchronous frame 7. The solid shell frame 28 is located above the slot 26, and the end of the solid shell frame 28 is inserted into the inside of the socket 31. The socket 31 and the solid shell frame 28 serve to connect the carrier shell 17 and the synchronization frame 7 together. A pin sleeve 29 is provided at the rear end of the socket 31, and an assembly pin 35 is coaxially provided inside the pin sleeve 29. The pin sleeve 29 serves to carry the assembly pin 35. The two ends of the assembly pin 35 pass through the two ends of the pin sleeve 29. The assembly pin 35 and the pin sleeve 29 are slidably matched. The assembly pin 35 passes through the socket 31 and the solid shell frame 28, and the assembly pin 35 serves to fix the socket 31 and the solid shell frame 28 together.
[0026] A concave frame 30 is fixedly installed at the lower end of the socket 31, and the end of the concave frame 30 is fixed to the carrier shell 17, and the concave frame 30 plays a role in fixing the socket 31. A fixed sleeve frame 36 is fixedly installed on the outer surface of the pin sleeve 29, and the end of the fixed sleeve frame 36 is fixed to the socket 31, and the fixed sleeve frame 36 plays a role in fixing the pin sleeve 29. The rear end of the socket 31 and the rear end of the solid shell frame 28 are penetrated by a pin hole 32, and the assembly pin 35 is inserted into the inside of the pin hole 32, and the pin hole 32 plays a role in matching with the assembly pin 35. The outer surface of the assembly pin 35 is coaxially inlaid with a convex cap 33, and the convex cap 33 is slidably installed in the pin sleeve 29, and a pin fixing spring 34 is wound around the outer side of the assembly pin 35. The convex cap 33 is pushed by the pin fixing spring 34. One end of the pin fixing spring 34 is fixed to the convex cap 33. The pin fixing spring 34 fixes the assembly pin 35 in the pin hole 32. The other end of the pin fixing spring 34 is fixed to the inner rear end of the pin sleeve 29. By pulling the assembly pin 35, it can be pulled out of the pin hole 32, and then the socket 31 is pushed downward to separate the socket 31 and the solid shell frame 28, so that the carrier shell 17 can be disassembled to facilitate the replacement of the brush cylinder 19.
[0027] When in use, the mounting frame 9 is clamped on both sides of the forklift arm 37, and the No. 1 bolt 10 is turned to press against the forklift arm 37, so that the circulation channel 5 can be fixed on the forklift arm 37. At this time, the clamping groove 8 on the mounting frame 9 is engaged with the cross arm 38 to reinforce the circulation channel 5 so that the circulation channel 5 will not shift up and down during lifting. At the same time, the slot 26 on the synchronous frame 7 is clamped on the fork claw seat 39, and then the No. 2 bolt 27 is turned to press against the fork claw seat 39, so that the synchronous frame 7 and the fork claw seat 39 can be fixed, so as to complete the assembly with the forklift arm 37 and other facilities. When the fork claw seat 39 is lifted and lowered on the forklift arm 37, the synchronous frame 7 will rise and fall synchronously with the fork claw seat 39, and then The plug-flow seat 21 is driven to slide up and down in the circulation channel 5. When the plug-flow seat 21 moves up, the sealing plate 22 is affected by the pressure of the liquid in the circulation channel 5 and is flush with the plug-flow seat 21 to form a whole, so that the liquid in the circulation channel 5 is pushed upward through the plug-flow seat 21 and the sealing plate 22, and enters the liquid cooling tube 2 through the No. 2 hose 11. At the same time, the original liquid in the liquid cooling tube 2 enters the circulation channel 5 through the No. 1 hose 3. When the plug-flow seat 21 moves down, the sealing plate 22 moves up due to the pressure of the liquid in the circulation channel 5, and is misaligned with the plug-flow seat 21, so that it will not push the liquid during the downward movement, thereby circulating, so that the liquid circulation operation can be completed with the help of a forklift during the lifting operation to cool the lithium battery pack 1.
[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A lithium battery module for a forklift, comprising a lithium battery pack (1) and a liquid cooling tube (2) inserted and arranged inside the lithium battery pack (1), characterized in that: A circulation channel (5) is arranged in front of the lithium battery pack (1), the circulation channel (5) is flat, the circulation channel (5) is connected to the liquid cooling tube (2), a mounting frame (9) is fixedly installed on one side of the circulation channel (5), both sides of the interior of the mounting frame (9) are provided with clamping grooves (8), a No. 1 bolt (10) is screwed through the side corner of the mounting frame (9), the upper end of the circulation channel (5) is fixedly connected to a rod sleeve (13), a reciprocating rod (12) is slidably installed through the interior of the rod sleeve (13), and the reciprocating rod (12) is slidably installed in the rod sleeve (13). The rod (12) extends into the interior of the circulation channel (5); a flow-pushing seat (21) is fixedly mounted on the lower end of the reciprocating rod (12); the flow-pushing seat (21) is slidably mounted in the interior of the circulation channel (5); two sealing plates (22) are symmetrically slidably mounted on the upper end of the flow-pushing seat (21); a synchronous frame (7) is fixedly mounted on the upper end of the reciprocating rod (12); a slot (26) is provided at the lower part of the synchronous frame (7); a No. 2 bolt (27) is penetrated and tightened through the lower end of the synchronous frame (7); and a heat sink is provided on the other side of the circulation channel (5).
2. A lithium battery module for a forklift according to claim 1, characterized in that: The lower end of the circulation channel (5) is fixedly connected to an inlet pipe (4), the end of the inlet pipe (4) is fixedly connected to a first hose (3), and the end of the first hose (3) is fixedly connected to the outlet of the liquid cooling pipe (2).
3. A lithium battery module for a forklift according to claim 1, characterized in that: An outlet pipe (6) is fixedly connected to the upper edge of the rear end of the circulation channel (5), a second hose (11) is fixedly connected to the end of the outlet pipe (6), and the end of the second hose (11) is fixedly connected to the inlet of the liquid cooling pipe (2).
4. A lithium battery module for a forklift according to claim 1, characterized in that: Two guide pillars (25) are symmetrically extended from both side edges of the upper end of the sealing plate (22); an L-shaped frame (23) is slidably mounted on the outer surface of the guide pillar (25); the end of the L-shaped frame (23) is fixed to the flow-propelling seat (21); and a positioning cap (24) is coaxially inlaid on the end of the guide pillar (25); the positioning cap (24) is fitted to the upper end of the L-shaped frame (23).
5. A lithium battery module for a forklift according to claim 1, characterized in that: The heat sink comprises a plurality of heat dissipation fins (14) extending in a linear array on the other side of the circulation channel (5); a carrier shell (17) is provided at the lower portion of the other side of the circulation channel (5); the carrier shell (17) is connected to the synchronous frame (7); a plurality of threaded sleeves (20) are rotatably mounted in a linear array on the side of the carrier shell (17); the ends of the plurality of threaded sleeves (20) are coaxially connected to a brush cylinder (19); and the plurality of heat dissipation fins (14) are located between the plurality of brush cylinders (19).
6. A lithium battery module for a forklift according to claim 5, characterized in that: The threaded sleeve (20) passes through the interior of the carrier shell (17); the outer surfaces of the plurality of threaded sleeves (20) are coaxially inlaid with gears (18); the gears (18) are located inside the carrier shell (17); the plurality of gears (18) are meshed in sequence; a notch is provided at one end of the carrier shell (17); a toothed plate (16) is provided at the notch of the carrier shell (17); the gears (18) located at one side edge are meshed with the toothed plate (16); and the toothed plate (16) is connected to the circulation channel (5).
7. A lithium battery module for a forklift according to claim 6, characterized in that: A plurality of connecting frames (15) are extended in a linear array on the side of the tooth plate (16), the ends of the connecting frames (15) are fixed to the circulation channel (5), the ends of the mandrels of the brush cylinder (19) are provided with external threads, the ends of the mandrels of the brush cylinder (19) are screwed together with the internal threads of the threaded sleeve (20) through the external threads, a socket (31) is provided at the middle of the upper end of the carrier shell (17), a solid shell frame (28) is fixedly mounted on the side of the synchronous frame (7), and the solid shell frame ( 28) is located above the slot (26), the end of the solid shell frame (28) is inserted into the interior of the socket (31), the rear end of the socket (31) is provided with a pin sleeve (29), the interior of the pin sleeve (29) is coaxially provided with an assembly pin (35), the two ends of the assembly pin (35) pass through the two ends of the pin sleeve (29), the assembly pin (35) and the pin sleeve (29) are slidably matched, and the assembly pin (35) passes between the socket (31) and the solid shell frame (28).
8. A lithium battery module for a forklift according to claim 7, characterized in that: A concave frame (30) is fixedly mounted on the lower end of the socket (31), and the end of the concave frame (30) is fixed to the carrier shell (17). A fixed sleeve frame (36) is fixedly mounted on the outer surface of the pin sleeve (29), and the end of the fixed sleeve frame (36) is fixed to the socket (31). The rear ends of the socket (31) and the rear ends of the fixed shell frame (28) are both penetrated with pin holes (32). The assembly pin (35) is inserted into the pin hole (32). A convex cap (33) is coaxially inlaid on the outer surface of the assembly pin (35), and the convex cap (33) is slidably mounted in the pin sleeve (29). A pin fixing spring (34) is wound around the outer side of the assembly pin (35), and one end of the pin fixing spring (34) is fixed to the convex cap (33), and the other end of the pin fixing spring (34) is fixed to the inner rear end of the pin sleeve (29).