CN112867347A - Water cooling device of electric vehicle controller - Google Patents
Water cooling device of electric vehicle controller Download PDFInfo
- Publication number
- CN112867347A CN112867347A CN202011632170.3A CN202011632170A CN112867347A CN 112867347 A CN112867347 A CN 112867347A CN 202011632170 A CN202011632170 A CN 202011632170A CN 112867347 A CN112867347 A CN 112867347A
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- frame
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- heat dissipation
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0204—Mounting supporting structures on the outside of casings
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20172—Fan mounting or fan specifications
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses a water cooling device of an electric vehicle controller, which comprises a first rectangular-shaped frame, wherein a rectangular-shaped heat dissipation frame is fixedly arranged on the inner side of the first rectangular-shaped frame, heat dissipation through grooves are formed in the top end and the low end of the rectangular-shaped heat dissipation frame in a penetrating manner, a controller body is detachably arranged in an inner cavity of the rectangular-shaped heat dissipation frame, and a water cooling mechanism is arranged at the lower end of the inner side of the first rectangular-shaped frame; the invention is driven by the water pump, and is matched with the water tank, the liquid inlet pipe, the liquid outlet pipe, the liquid distribution pipe, the snake-shaped bent pipe, the liquid collection pipe and the return pipe, so that the water circulation cooling is realized, and the cooling effect of the controller body is improved.
Description
Technical Field
The invention relates to the technical field of electric vehicle controller heat dissipation, in particular to a water cooling device for an electric vehicle controller.
Background
The electric vehicle controller is a core control device used for controlling the starting, running, advancing and retreating, speed and stopping of a motor of an electric vehicle and other electronic devices of the electric vehicle, is like the brain of the electric vehicle, and is an important part on the electric vehicle. The electric vehicle mainly comprises an electric bicycle, an electric two-wheel motorcycle, an electric tricycle, an electric three-wheel motorcycle, an electric four-wheel vehicle, an electric battery car and the like, and the electric vehicle controller has different performances and characteristics due to different vehicle types.
The heat radiation structure of the current electric vehicle controller only sets up the fin on aluminium system casing, and does not add other heat abstractor and assist the heat dissipation to the radiating effect that leads to the controller is general, and in addition, current electric vehicle controller's installation stability is relatively poor, thereby influences the subsequent normal use of controller, for this reason we propose an electric vehicle controller water cooling plant and be used for solving above-mentioned problem.
Disclosure of Invention
The invention aims to provide a water cooling device for an electric vehicle controller, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a water cooling device of an electric vehicle controller comprises a first shaping frame, wherein a shaping heat dissipation frame is fixedly arranged on the inner side of the first shaping frame, the top end and the lower end of the clip-shaped heat dissipation frame are both provided with heat dissipation through grooves in a penetrating way, the inner cavity of the clip-shaped heat dissipation frame is detachably provided with a controller body, the lower end of the inner side of the first forming frame is provided with a water cooling mechanism, the water cooling mechanism comprises snake-shaped bent pipes, two groups of snake-shaped bent pipes are arranged, and are symmetrically arranged in the inner cavities at the two ends of the first frame, the upper end of the inner side of the first frame is provided with an air cooling mechanism, the air cooling mechanism comprises a second frame which is slidably clamped at the top end of the inner side of the first frame, the lower extreme fixed mounting of second time type frame has the L type pole that the mirror image distributes, and is two sets of fixed mounting has radiator fan between the L type pole, radiator fan is located the upper end that one of them group dispels the heat and leads to the groove.
According to a preferred technical scheme, the water cooling mechanism comprises a water tank, the water tank is fixedly mounted at the bottom end of the inner side of the first bending frame, a water pump is fixedly mounted at one end of the water tank, a liquid inlet pipe is communicated with the lower end of the water pump, one end of the liquid inlet pipe is fixedly connected with the water tank, the communication position of the liquid inlet pipe and the water tank is of a concave structure, a liquid outlet pipe is communicated with the upper end of one side of the water pump, a liquid distribution pipe is communicated with one end of the liquid outlet pipe, two ends of the liquid distribution pipe are respectively fixedly connected with the two groups of serpentine elbows, the other ends of the two groups of serpentine elbows are communicated with a liquid collection pipe, one end of the liquid collection pipe is communicated with a.
As a preferred technical scheme of the present invention, the air cooling mechanism includes a motor, the motor is fixedly mounted on the top of the first molding frame, an output end of the motor penetrates through the first molding frame and is provided with a rotating disc at a tail end thereof, four sets of driving posts are integrally formed at a lower end of the rotating disc, driving tooth sockets used in cooperation with the driving posts are formed at two ends of an inner side of the second molding frame, the rotating disc is movably clamped at the inner side of the second molding frame, and the driving posts are engaged with the driving tooth sockets.
As a preferred technical scheme of the invention, symmetrically arranged T-shaped limiting blocks are fixedly mounted at the upper end of the second frame, symmetrically distributed T-shaped limiting grooves are formed at the top end of the inner side of the first frame, and one end of each T-shaped limiting block is slidably clamped in each T-shaped limiting groove.
As a preferable technical scheme of the invention, the width of the T-shaped limiting block is smaller than the length of the T-shaped limiting groove.
As a preferred technical scheme of the present invention, symmetrically arranged fixing blocks are integrally formed on both sides of one end of the controller body, a fixing groove matched with the fixing blocks is formed on one side of the clip-shaped heat dissipation frame, and the fixing blocks can be slidably clamped in the fixing groove.
As a preferred technical scheme of the present invention, a through hole is formed through the fixing block, a fixing hole matched with the through hole is formed on the inner side of the fixing groove, and a fixing bolt can be inserted into the through hole and the fixing hole in a threaded manner.
As a preferred technical scheme of the present invention, a connecting frame is fixedly installed at the top of the first frame, the connecting frame is fixedly sleeved outside the motor, and connecting through holes distributed in a mirror image manner penetrate through both sides of the upper end of the connecting frame.
Compared with the prior art, the invention has the beneficial effects that:
1. under the driving of the water pump, the invention is matched with the use of the water tank, the liquid inlet pipe, the liquid outlet pipe, the liquid distributing pipe, the snake-shaped bent pipe, the liquid collecting pipe and the return pipe, so as to realize water circulation cooling, thereby improving the cooling effect of the controller body.
2. The invention realizes the circular reciprocating motion of the cooling fan under the driving of the motor by matching with the use of the rotating disc, the driving column and the second loop-shaped frame, thereby evenly driving the airflow at the cooling through groove at the upper end of the loop-shaped cooling frame to flow, further leading the airflow to take away the heat at the cooling through groove and further improving the cooling efficiency.
3. The fixing block, the fixing groove and the fixing bolt are matched for use, so that convenience is provided for mounting and dismounting the controller body, and the mounting stability of the controller body is effectively improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the backside structure of the present invention;
FIG. 3 is a schematic view of the structural connection of the present invention;
FIG. 4 is a schematic view of a part of the structure of the present invention;
fig. 5 is a schematic structural view of an air cooling mechanism according to the present invention.
In the figure: 1. a first frame of the molding box; 11. a T-shaped limiting groove; 2. a clip-shaped heat dissipation frame; 21. a heat dissipation through groove; 22. fixing grooves; 23. a fixing hole; 3. a controller body; 31. a fixed block; 32. a through hole; 33. fixing the bolt; 4. a water cooling mechanism; 41. a snake-shaped bent pipe; 42. a water tank; 43. a water pump; 44. a liquid inlet pipe; 45. a liquid outlet pipe; 46. a liquid separating pipe; 47. a liquid collecting pipe; 48. a return pipe; 5. an air cooling mechanism; 51. a second loop frame; 52. an L-shaped rod; 53. a motor; 54. rotating the disc; 55. a drive column; 56. a drive gullet; 57. a T-shaped limiting block; 6. a heat radiation fan; 7. a connecting frame; 71. and connecting the through holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a water cooling device of an electric vehicle controller comprises a first rectangular parallelepiped frame 1, a rectangular parallelepiped heat dissipation frame 2 is fixedly arranged on the inner side of the first rectangular parallelepiped frame 1, heat dissipation through grooves 21 are respectively formed in the top end and the lower end of the rectangular parallelepiped heat dissipation frame 2 in a penetrating manner, a controller body 3 is detachably arranged in the inner cavity of the rectangular parallelepiped heat dissipation frame 2, a water cooling mechanism 4 is arranged at the lower end of the inner side of the first rectangular parallelepiped frame 1, the water cooling mechanism 4 comprises a snake-shaped bent pipe 41, two groups of snake-shaped bent pipes 41 are arranged, and the two ends of the first frame 1 are symmetrically arranged in the inner cavities of the two ends of the first frame 2, the upper end of the inner side of the first frame 1 is provided with an air cooling mechanism 5, the air cooling mechanism 5 comprises a second frame 51, the second frame 51 is slidably clamped at the top end of the inner side of the first frame 1, the lower end of the second frame 51 is fixedly provided with L-shaped rods 52 distributed in a mirror image manner, a heat radiation fan 6 is fixedly arranged between the two groups of L-shaped rods 52, and the heat radiation fan 6 is positioned at the upper end of one group of heat radiation through grooves 21.
The water cooling mechanism 4 comprises a water tank 42, the water tank 42 is made of metal aluminum, so that heat dissipation of a water source inside the water tank 42 is facilitated, a communication port is formed in one side of the upper end of the water tank 42, a sealing cover is sleeved on the outer side of the communication port in a threaded manner, the water tank 42 is fixedly installed at the bottom end of the inner side of the first return frame 1, a water pump 43 is fixedly installed at one end of the water tank 42, a liquid inlet pipe 44 is communicated with the lower end of the water pump 43, one end of the liquid inlet pipe 44 is fixedly connected with the water tank 42, the communication position of the liquid inlet pipe 44 and the water tank 42 is of a concave structure, a liquid outlet pipe 45 is communicated with the upper end of one side of the water pump 43, a liquid distribution pipe 46 is communicated with one end of the liquid distribution pipe 46, two ends of the liquid distribution pipe 46 are respectively and fixedly connected with the two groups of, during actual use, the heat generated during the operation of the controller body 3 can be absorbed by the heat dissipation frame 2, the water pump 43 can lead the water source inside the water tank 42 into the liquid outlet pipe 45 through the liquid inlet pipe 44, then the water source is led into the two groups of serpentine elbows 41 through the liquid distribution pipe 46, when the water source flows in the serpentine elbows 41, the heat diffused on the heat dissipation frame 2 can be absorbed, so that the water temperature rises, the water source after temperature rise is led into the return pipe 48 through the liquid collection pipe 47, and finally the water source is led into the water tank 42 through the return pipe 48, so that water circulation is formed, the controller body 3 is cooled by water, the water source after temperature rise is mixed with the cold water inside the water tank 42 for temperature reduction, and the redundant heat is diffused into the peripheral air through the water tank 42.
Air cooling mechanism 5 includes motor 53, and in this scheme: the type Y80M1-2 is preferred to the motor 53, the power supply interface of the motor is connected with a power supply system through a switch, the operation circuit of the motor 53 is a normal and reverse rotation control program of a normal motor 53, the operation of the circuit is the conventional circuit, the circuits and the control related in the scheme are the prior art, redundant description is not repeated, the motor 53 is fixedly arranged at the top of the first molding back frame 1, the output end of the motor 53 penetrates through the first molding back frame 1, the tail end of the motor is provided with a rotating disc 54, the lower end of the rotating disc 54 is integrally formed with four groups of driving columns 55, the two ends of the inner side of the second molding back frame 51 are provided with driving tooth sockets 56 matched with the driving columns 55, the rotating disc 54 is movably clamped at the inner side of the second molding back frame 51, the driving columns 55 are meshed with the driving tooth sockets 56, the motor 53 drives the driving columns 55 to rotate through the rotating disc 54, so that the driving columns 55 roll back, and then the second frame 51 is driven to do the circular reciprocating motion, at this time, the second frame 51 drives the heat dissipating fan 6 to do the circular reciprocating motion through the L-shaped rod 52, so that the heat dissipating fan 6 uniformly drives the air flow at the heat dissipating through groove 21 at the upper end of the second frame 2 to flow, and the air flow takes away the heat at the heat dissipating through groove 21, thereby further improving the heat dissipating efficiency.
The upper end fixed mounting of second time type frame 51 has the T type stopper 57 of symmetry setting, and the T type spacing groove 11 of symmetric distribution is seted up on the inboard top of first time type frame 1, and the one end slip card of T type stopper 57 is established in T type spacing groove 11, uses through the cooperation of T type stopper 57 with T type spacing groove 11, has played spacing and guide effect to the removal of second time type frame 51.
The width of the T-shaped limiting block 57 is smaller than the length of the T-shaped limiting groove 11, so that the second frame 51 can be moved and adjusted conveniently.
The two sides of one end of the controller body 3 are integrally formed with symmetrically arranged fixing blocks 31, one side of the clip-shaped heat dissipation frame 2 is provided with a fixing groove 22 matched with the fixing block 31 for use, the fixing block 31 can be clamped in the fixing groove 22 in a sliding manner, the fixing block 31 is provided with a through hole 32 in a penetrating manner, the inner side of the fixing groove 22 is provided with a fixing hole 23 matched with the through hole 32 for use, a fixing bolt 33 can be inserted into the through hole 32 and the fixing hole 23 in a threaded manner, when the controller body 3 is installed, a user needs to hold the controller body 3 with his hand and insert one end of the controller body 3 into the inner side of the clip-shaped heat dissipation frame 2, then the user needs to push the controller body 3 to one side close to the clip-shaped heat dissipation frame 2 until the controller body 3 is completely clamped in the inner side of the clip-shaped heat dissipation frame 2, meanwhile, the two groups of fixing blocks, until the two sets of fixing bolts 33 are inserted into the corresponding through holes 32 and fixing holes 23.
The top fixed mounting of first time frame 1 has link 7, and link 7 fixed cover is established in the outside of motor 53, and the connection perforation 71 of seting up the mirror image and distributing is all run through to the upper end both sides of link 7, and before the use, the user need hand first time frame 1 and with the link 7 block at the electric motor car and correspond the installation department, but then user knob positioning bolt to make positioning bolt insert establish connect in perforation 71 and fix first time frame 1 through link 7.
The working principle is as follows: in daily use, a user needs to hold the first frame 1 and clamp the connecting frame 7 at the corresponding installation position of the electric vehicle, then the user can turn the positioning bolt, so that the positioning bolt is inserted into the connecting through hole 71 and the first frame 1 is fixed through the connecting frame 7, then the user needs to hold the controller body 3 and insert one end of the controller body 3 at the inner side of the heat-dissipating frame 2, then the user needs to push the controller body 3 to one side close to the heat-dissipating frame 2 until the controller body 3 is completely clamped at the inner side of the heat-dissipating frame 2, meanwhile, the two groups of fixing blocks 31 are clamped in the corresponding fixing grooves 22 simultaneously, then the user can turn the two groups of fixing bolts 33 in sequence until the two groups of fixing bolts 33 are inserted in the corresponding through holes 32 and the fixing holes 23, and after the controller body 3 is installed, the user can take the knob sealing cover down and take it down, then the user can lead the water source into the water tank 42 through the communicating port, after the proper amount of water source is led into the water tank 42, the user can stop the water source leading-in operation and reverse the knob sealing cover, thereby the communicating port is sealed again, when the user needs to drive the electric vehicle, the user needs to open the water pump 43, the motor 53 and the heat dissipation fan 6 at the same time, at this time, the heat generated when the controller body 3 works will be absorbed by the loop-shaped heat dissipation frame 2, the water pump 43 can lead the water source in the water tank 42 into the liquid outlet pipe 45 through the liquid inlet pipe 44, then the water source will be led into the two groups of serpentine elbows 41 evenly through the liquid distribution pipe 46, when the water source flows in the serpentine elbows 41, the heat diffused on the loop-shaped heat dissipation frame 2 can be absorbed, thereby the water temperature rises, the water source after the temperature rise will, finally, the water is guided into the water tank 42 by the return pipe 48 to form a water circulation, and then the controller body 3 is cooled by water, the water source after temperature rise is mixed with cold water in the water tank 42 to cool, and the redundant heat is diffused into the surrounding air through the water tank 42, meanwhile, the motor 53 drives the driving column 55 to rotate through the rotating disc 54, so that the driving column 55 rolls back and forth in the driving tooth grooves 56 at the two sides of the second frame 51, and then drives the second frame 51 to do a circular reciprocating motion, at this time, the second frame 51 drives the heat dissipation fan 6 to do a circular reciprocating motion through the L-shaped rod 52, so that the heat dissipation fan 6 uniformly drives the airflow at the heat dissipation through groove 21 at the upper end of the second frame 2 to flow, and further the heat at the heat dissipation through groove 21 is taken away by the airflow, and the heat dissipation efficiency is further improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an electric vehicle controller water cooling plant, includes first time type frame (1), its characterized in that: the inner side of the first loop type frame (1) is fixedly provided with a loop type heat dissipation frame (2), the top end and the low end of the loop type heat dissipation frame (2) are both penetrated through a heat dissipation through groove (21), a controller body (3) can be detachably arranged in the inner cavity of the loop type heat dissipation frame (2), the inner side lower end of the first loop type frame (1) is provided with a water cooling mechanism (4), the water cooling mechanism (4) comprises a snake-shaped bent pipe (41), the snake-shaped bent pipe (41) is provided with two groups and is symmetrically arranged in the inner cavities at the two ends of the loop type heat dissipation frame (2), the inner side upper end of the first loop type frame (1) is provided with an air cooling mechanism (5), the air cooling mechanism (5) comprises a second loop type frame (51), the second loop type frame (51) is slidably clamped at the inner side top end of the first loop type frame (1), and the lower end of the second loop type frame (51) is fixedly provided with L-, a heat radiation fan (6) is fixedly arranged between the two groups of L-shaped rods (52), and the heat radiation fan (6) is positioned at the upper end of one group of heat radiation through grooves (21).
2. The electric vehicle controller water-cooling device according to claim 1, characterized in that: the water cooling mechanism (4) comprises a water tank (42), the water tank (42) is fixedly arranged at the bottom end of the inner side of the first shaping frame (1), a water pump (43) is fixedly arranged at one end of the water tank (42), a liquid inlet pipe (44) is communicated with the lower end of the water pump (43), one end of the liquid inlet pipe (44) is fixedly connected with the water tank (42), the connection part of the liquid inlet pipe (44) and the water tank (42) is of a concave structure, the upper end of one side of the water pump (43) is communicated with a liquid outlet pipe (45), one end of the liquid outlet pipe (45) is communicated with a liquid distribution pipe (46), two ends of the liquid distribution pipe (46) are respectively and fixedly connected with the two groups of snake-shaped bent pipes (41), the other ends of the two groups of snake-shaped bent pipes (41) are communicated with a liquid collection pipe (47), one end of the liquid collecting pipe (47) is communicated with a return pipe (48), and one end of the return pipe (48) is fixedly connected to the upper end of one side of the water tank (42).
3. The electric vehicle controller water-cooling device according to claim 1, characterized in that: air cooling mechanism (5) include motor (53), motor (53) fixed mounting is at the top of first time type frame (1), the output of motor (53) runs through first time type frame (1) and is equipped with rotating disc (54) at its end, rotating disc's (54) lower extreme integrated into one piece has four groups drive column (55), drive tooth's socket (56) that use with drive column (55) cooperation are seted up at the inboard both ends of second time type frame (51), rotating disc (54) activity card is established in the inboard of second time type frame (51), and drive column (55) mesh with drive tooth's socket (56).
4. The electric vehicle controller water-cooling device according to claim 1, characterized in that: the upper end fixed mounting of second time type frame (51) has T type stopper (57) that the symmetry set up, T type spacing groove (11) of symmetric distribution are seted up on the inboard top of first time type frame (1), the slip card of one end of T type stopper (57) is established in T type spacing groove (11).
5. The electric vehicle controller water-cooling device according to claim 4, characterized in that: the width of the T-shaped limiting block (57) is smaller than the length of the T-shaped limiting groove (11).
6. The electric vehicle controller water-cooling device according to claim 1, characterized in that: the one end both sides integrated into one piece of controller body (3) has fixed block (31) that the symmetry set up, fixed slot (22) that use with fixed block (31) cooperation are seted up to one side of returning type heat dissipation frame (2), fixed block (31) can slide card establish in fixed slot (22).
7. The electric vehicle controller water-cooling device according to claim 6, characterized in that: run through on fixed block (31) and seted up through-hole (32), fixed orifices (23) that use with through-hole (32) cooperation are seted up to the inboard of fixed slot (22), can the screw thread insert in through-hole (32) and fixed orifices (23) and be equipped with fixing bolt (33).
8. The electric vehicle controller water-cooling device according to claim 3, characterized in that: the top fixed mounting of first time frame (1) has link (7), link (7) fixed cover is established in the outside of motor (53), the upper end both sides of link (7) all run through and set up connection perforation (71) that the mirror image distributes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011632170.3A CN112867347B (en) | 2020-12-31 | 2020-12-31 | Water cooling device of electric vehicle controller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011632170.3A CN112867347B (en) | 2020-12-31 | 2020-12-31 | Water cooling device of electric vehicle controller |
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| CN112867347A true CN112867347A (en) | 2021-05-28 |
| CN112867347B CN112867347B (en) | 2022-05-03 |
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| CN116033729A (en) * | 2023-03-30 | 2023-04-28 | 合肥锐联传热技术有限公司 | Liquid cooling machine case of inside and outside dual circulation system |
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| CN115305654A (en) * | 2022-01-24 | 2022-11-08 | 江西高达新材料有限公司 | Cowhide fiber air-laid mechanism |
| CN115305654B (en) * | 2022-01-24 | 2024-03-22 | 江西高达新材料有限公司 | Cowhide fibre air current web forming mechanism |
| CN116033729A (en) * | 2023-03-30 | 2023-04-28 | 合肥锐联传热技术有限公司 | Liquid cooling machine case of inside and outside dual circulation system |
| CN116033729B (en) * | 2023-03-30 | 2023-06-20 | 合肥锐联传热技术有限公司 | Liquid cooling machine case of inside and outside dual circulation system |
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| CN112867347B (en) | 2022-05-03 |
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