A liquid cooling system for mobile charging vehicles

Abstract

The present invention provides a liquid cooling system applied to a mobile charging vehicle, which relates to the technical field of mobile charging vehicles, including a charging compartment and a battery box, a cooling box body is arranged in the charging compartment, a baffle is arranged in the cooling box body, the baffle separates the cooling box body into a cooling chamber and a circulation chamber, a cooling liquid is arranged in the cooling chamber, a plurality of battery boxes are mounted on a mounting frame, the mounting frame is immersed in the cooling liquid, a cooling plate is arranged in the circulation chamber, a refrigeration unit is arranged below the cooling plate, the input end of the refrigeration unit is connected to the top of the cooling plate through a liquid inlet pipe, and the output end of the refrigeration unit is connected to the bottom of the cooling chamber through a liquid outlet pipe. In the present invention, the cooling liquid can be cooled by the refrigeration unit, and the cooling liquid is circulated in the cooling box body. When the cooling liquid flows through the battery box, the heat of the battery box can be taken away, and the traditional air cooling heat dissipation is replaced by liquid cooling, which improves the cooling efficiency, effectively improves the battery layout density, and improves the energy storage capacity of the mobile charging vehicle.

Description

Technical Field

[0001] The present invention relates to the technical field of mobile charging vehicles, and in particular to a liquid cooling system applied to a mobile charging vehicle. Background Art

[0002] With the continuous advancement of my country's energy conservation and emission reduction policies, new energy electric vehicles are becoming more and more popular in the market. When a new energy electric vehicle breaks down due to low battery and cannot continue to drive, mobile charging vehicles are usually used to provide mobile charging services and rescue for the new energy electric vehicle.

[0003] The Chinese patent with the authorization announcement number CN218788417U discloses a ventilation and cooling structure for mobile charging vehicles, which relates to the technical field of mobile charging vehicles. In order to solve the problem that there are many heating components such as chargers in the compartment of existing mobile charging vehicles, a large amount of heat will be generated during the operation of the charger, causing the temperature inside the compartment to rise. The traditional compartment has a mesh exhaust structure, and the ventilation and cooling efficiency is slow, making it difficult to discharge the heat in the compartment. The rear end of the mobile charging vehicle body is provided with a charging compartment, and the charging compartment has a charging box installed with internal threads, and the charging box has a charger body, a control mechanism and a battery installed with internal threads; it also includes: a heat dissipation mechanism, which is threadedly installed above the outer wall of the rear end of the charging compartment, and the outer wall of the heat dissipation mechanism is threadedly installed with an intake fan, and one end of the intake fan is provided with an air inlet pipe, and the air inlet pipe is connected to the upper thread inside the charging compartment through a mounting member; a guide pipe, whose flange is installed at the lower end of the air inlet pipe.

[0004] The above scheme achieves the effect of air intake by setting an intake fan. Gas enters from the intake fan, and cold air enters from the air intake pipe into the guide pipe. The cold air is diverted to different layers in the charging box through three diversion pipes, so that the temperature of the internal charger body, control mechanism and battery is reduced, achieving the effect of ventilation and cooling. However, the above scheme uses air cooling to dissipate heat inside the car, which has low heat dissipation efficiency and cannot quickly cool down the interior of the car, causing the battery to work in a high temperature environment, affecting the charging efficiency. Summary of the invention

[0005] The present invention provides a liquid cooling system applied to a mobile charging vehicle, so as to solve the technical problem that the mobile charging vehicle currently adopts an air cooling method to dissipate heat inside a vehicle compartment, but the heat dissipation efficiency is low.

[0006] In order to solve the above technical problems, the present invention discloses a liquid cooling system applied to a mobile charging vehicle, including: a charging compartment and a battery box, a cooling box is arranged in the charging compartment, a baffle is arranged in the cooling box, the baffle divides the cooling box into a cooling chamber and a circulation chamber, a coolant is arranged in the cooling chamber, a plurality of battery boxes are installed on a mounting frame, the mounting frame is immersed in the coolant, a cooling plate is arranged in the circulation chamber, a refrigeration unit is arranged below the cooling plate, an input end of the refrigeration unit is connected with the top of the cooling plate through a liquid inlet pipe, and an output end of the refrigeration unit is connected with the bottom of the cooling chamber through a liquid outlet pipe.

[0007] Preferably, a plurality of heat dissipation fins are arranged at one end of the cooling plate away from the baffle, and the heat dissipation fins extend to the outside of the charging compartment away from one end of the cooling plate.

[0008] Preferably, the mounting frame includes two supporting side plates and a plurality of supporting frames, the two supporting side plates are symmetrically arranged in the cooling cavity, the outer wall of one supporting side plate contacts one side of the baffle plate, and the outer wall of the other supporting side plate contacts the inner wall of the cooling box body, the supporting frame is located between the two supporting side plates, the left and right ends of the supporting frame are respectively connected to the inner walls of the supporting side plates, the plurality of supporting frames are arranged at equal intervals from bottom to top, the height of the baffle plate and the supporting side plates is less than the height of the cooling box body, and the battery box is placed on the supporting frames.

[0009] Preferably, the support frame is a circular frame structure, and a gap is set between the front and rear sides of the support frame and the inner wall of the cooling box.

[0010] Preferably, the front and rear ends of the supporting side plate are respectively slidably connected to the front and rear inner walls of the cooling box body, and a mounting groove is provided at the bottom of the supporting side plate close to the baffle, and the mounting groove is adapted to the liquid outlet pipe.

[0011] Preferably, a dust cover is provided at the upper end of the charging compartment, and the dust cover is detachably connected to the upper end of the charging compartment.

[0012] Preferably, a lifting lug is provided on the upper end of the supporting side plate.

[0013] Preferably, an electric push rod is arranged on the lower surface of the dustproof cover plate, and a pressure plate is arranged on the output end of the electric push rod.

[0014] Preferably, a guide groove is provided on the outer wall of the supporting side plate away from the baffle, the guide groove is vertically arranged, and a guide bar adapted to the guide groove is provided on the inner wall of the cooling box body, and the guide bar is slidably connected to the inner wall of the guide groove up and down.

[0015] Preferably, positioning holes are symmetrically provided at the front and rear ends of the support frame, a moving block is slidably provided in the positioning hole, a positioning column is provided at the lower end of the moving block, the lower end of the positioning column extends to the bottom of the support frame and is slidably connected to the through position of the support frame up and down, the lower ends of the two positioning columns are connected by a connecting rod, a first connecting spring is sleeved on the outside of the positioning column, one end of the first connecting spring is connected to the lower surface of the moving block, and the other end of the first connecting spring is connected to the bottom wall of the positioning hole, a positioning block is provided above the moving block at the rear end, the outer wall of the positioning block is slidably connected to the inner wall of the positioning hole up and down, the positioning block is connected to the moving block through the second connecting spring, the upper end of the positioning block extends above the positioning hole, and a guiding inclined surface is provided on the front side of the positioning block.

[0016] The technical solution of the present invention has the following advantages: The present invention provides a liquid cooling system applied to a mobile charging vehicle, which relates to the technical field of mobile charging vehicles, including a charging compartment and a battery box, a cooling box body is arranged in the charging compartment, a baffle is arranged in the cooling box body, the baffle separates the cooling box body into a cooling chamber and a circulation chamber, a cooling liquid is arranged in the cooling chamber, a plurality of battery boxes are mounted on a mounting frame, the mounting frame is immersed in the cooling liquid, a cooling plate is arranged in the circulation chamber, a refrigeration unit is arranged below the cooling plate, the input end of the refrigeration unit is connected to the top of the cooling plate through a liquid inlet pipe, and the output end of the refrigeration unit is connected to the bottom of the cooling chamber through a liquid outlet pipe. In the present invention, the cooling liquid can be cooled by the refrigeration unit, and the cooling liquid can circulate in the cooling box body. When the cooling liquid flows through the battery box, the heat of the battery box can be taken away, and the traditional air cooling heat dissipation is replaced by liquid cooling, which improves the cooling efficiency, quickly cools the interior of the charging compartment, effectively improves the battery layout density, and improves the energy storage capacity of the mobile charging vehicle. In addition, the liquid cooling system can effectively reduce the overheating of the battery pack inside the battery box during charging and discharging, prolong the service life of the battery pack, and enhance the safety performance of the mobile charging vehicle.

[0017] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the devices particularly pointed out in the written description and the drawings of the description.

[0018] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of a liquid cooling system applied to a mobile charging vehicle of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the mounting frame in the present invention;

[0022] Figure 3 This is a front view of the internal structure of the charging compartment in the present invention;

[0023] Figure 4 This is a cross-sectional view of the internal structure of the charging compartment in the present invention;

[0024] Figure 5 For the present invention Figure 4 A magnified view of the structure at center;

[0025] Figure 6 For the present invention Figure 4 Partial cross-sectional view at the middle BB;

[0026] Figure 7 For the present invention Figure 6 Enlarged view of the structure at point C in the middle.

[0027] In the figure: 1. charging compartment; 2. battery box; 3. cooling box; 4. baffle; 5. cooling chamber; 6. circulation chamber; 7. mounting frame; 8. cooling plate; 9. refrigeration unit; 10. liquid inlet pipe; 11. liquid outlet pipe; 12. heat dissipation fins; 13. supporting side plate; 14. supporting frame; 15. dust cover; 16. lifting ear; 17. electric push rod; 18. pressure plate; 19. guide strip; 20. positioning hole; 21. moving block; 22. positioning column; 23. connecting rod; 24. first connecting spring; 25. positioning block; 26. second connecting spring; 27. sealing groove; 28. sliding chamber; 29. ​​sealing plate; 30. sliding plate; 31. sliding column; 32. mounting cylinder; 33. reset spring; 34. sealing cover; 35. driving motor; 36. driving gear; 37. rack; 38. driving rod. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0029] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0030] Example 1

[0031] The embodiment of the present invention provides a liquid cooling system for a mobile charging vehicle, such as Figure 1-Figure 7 As shown, it includes: a charging compartment 1 and a battery box 2, a cooling box body 3 is arranged in the charging compartment 1, a baffle 4 is arranged in the cooling box body 3, the baffle 4 divides the cooling box body 3 into a cooling chamber 5 and a circulation chamber 6, a coolant is arranged in the cooling chamber 5, a plurality of battery boxes 2 are installed on a mounting frame 7, the mounting frame 7 is immersed in the coolant, a cooling plate 8 is arranged in the circulation chamber 6, a refrigeration unit 9 is arranged below the cooling plate 8, an input end of the refrigeration unit 9 is connected with the top of the cooling plate 8 through a liquid inlet pipe 10, and an output end of the refrigeration unit 9 is connected with the bottom of the cooling chamber 5 through a liquid outlet pipe 11.

[0032] The working principle and beneficial effects of the above technical solution are as follows: a cooling box 3 is arranged in the charging compartment 1, an opening is arranged at the upper end of the cooling box 3, a baffle 4 is arranged inside the cooling box 3, the front and rear ends of the baffle 4 are respectively connected to the inner wall of the cooling box 3, a cooling chamber 5 is arranged on the left side of the baffle 4, and a circulation chamber 6 is arranged on the right side of the baffle 4, a mounting frame 7 is arranged in the cooling chamber 5, a plurality of battery boxes 2 are arranged on the mounting frame 7, a battery pack is arranged in the battery box 2, the cooling chamber 5 is filled with coolant, so that the battery box 2 is completely immersed in the coolant in the cooling chamber 5, and at the same time, coolant is pre-stored above the cooling plate 8. When the liquid cooling system is working, the refrigeration unit 9 is started, and the refrigeration unit 9 can cool the coolant passing through the refrigeration unit 9, and then the cooled coolant is discharged to the bottom of the cooling chamber 5 through the liquid outlet pipe 11. The coolant in the cooling chamber 5 increases and overflows into the circulation chamber 6. The coolant is first stored on the cooling plate 8, and the cooling plate 8 absorbs heat from the coolant. At the same time, the refrigeration unit 9 draws the coolant on the cooling plate 8 into the refrigeration unit 9 through the liquid inlet pipe 10, and flows into the cooling chamber 5 again after refrigeration, so that the coolant circulates. When the coolant flows through the battery box 2, it can take away the heat of the battery box 2. Liquid cooling replaces the traditional air cooling heat dissipation, which improves the cooling efficiency, quickly cools down the interior of the charging compartment 1, effectively increases the battery layout density, and improves the energy storage capacity of the mobile charging vehicle; and, through the liquid cooling system, it can effectively reduce the overheating of the battery pack inside the battery box 2 during charging and discharging, extend the service life of the battery pack, and enhance the safety performance of the mobile charging vehicle.

[0033] Example 2

[0034] On the basis of the above-mentioned embodiment 1, Figure 1 As shown, a plurality of heat dissipation fins 12 are provided at one end of the cooling plate 8 away from the baffle 4 , and the heat dissipation fins 12 extend to the outside of the charging compartment 1 away from one end of the cooling plate 8 .

[0035] The working principle and beneficial effects of the above technical solution are as follows: after the cooling plate 8 absorbs the heat of the coolant, it can be transferred to the heat dissipation fins 12, and the heat is dissipated through the heat dissipation fins 12 located in the external environment, thereby improving the cooling efficiency of the coolant, and being able to dissipate the heat generated by the refrigeration unit 9 when it is working, thereby avoiding the internal temperature of the charging compartment 1 from being too high.

[0036] Example 3

[0037] On the basis of Example 1 or 2, Figure 1 , Figure 2As shown, the mounting frame 7 includes two supporting side plates 13 and a plurality of supporting frames 14, the two supporting side plates 13 are symmetrically arranged in the cooling chamber 5, the outer wall of one supporting side plate 13 contacts one side of the baffle 4, and the outer wall of the other supporting side plate 13 contacts the inner wall of the cooling box 3, the supporting frame 14 is located between the two supporting side plates 13, the left and right ends of the supporting frame 14 are respectively connected to the inner wall of the supporting side plate 13, the plurality of supporting frames 14 are arranged at equal intervals from bottom to top, the height of the baffle 4 and the supporting side plate 13 is less than the height of the cooling box 3, and the battery box 2 is placed on the supporting frame 14;

[0038] The support frame 14 is a circular frame structure, and gaps are set between the front and rear sides of the support frame 14 and the inner wall of the cooling box body 3.

[0039] The working principle and beneficial effects of the above technical solution are as follows: the battery box 2 is horizontally placed on the support frame 14, and multiple support frames 14 are provided, and multiple support frames 14 are arranged at equal intervals, which is convenient for installing multiple battery boxes 2, rationally utilizing the internal space of the charging compartment 1, and improving the energy storage capacity. After the battery box 2 is installed on the support frame 14, the upper end of the battery box 2 does not contact the upper support frame 14, ensuring that the coolant can flow through the upper surface of the battery box 2, and the support frame 14 is set as a circular frame structure, so that the coolant can flow through the lower surface of the battery box 2, and the coolant is fully in contact with the battery box 2, the cooling is more uniform, and the cooling effect is better, which further improves the cooling efficiency of the battery box 2, prevents the battery components in the battery box 2 from overheating, and extends the service life. A gap is set between the front and rear sides of the support frame 14 and the inner wall of the cooling box 3, and the coolant can flow upward through the gap, which is conducive to the circulation of the coolant.

[0040] Example 4

[0041] On the basis of Example 3, Figure 6 As shown, the front and rear ends of the supporting side plate 13 are respectively slidably connected to the front and rear inner walls of the cooling box 3 up and down, and a mounting groove is provided at the bottom of the supporting side plate 13 close to the baffle 4, and the mounting groove is adapted to the liquid outlet pipe 11.

[0042] The working principle and beneficial effects of the above technical solution are as follows: the supporting side panel 13 is used to connect the supporting frame 14, and the front and rear side walls of the supporting side wall are respectively slidably connected to the front and rear side walls of the cooling box 3, so that the mounting frame 7 can slide up and down in the cooling cavity 5, making it easy to remove the mounting frame 7 from the cooling cavity 5.

[0043] Example 5

[0044] On the basis of Example 4, Figure 1 , Figure 4 As shown, a dust cover 15 is provided at the upper end of the charging carriage 1, and the dust cover 15 is detachably connected to the upper end of the charging carriage 1;

[0045] A lifting lug 16 is provided at the upper end of the supporting side plate 13;

[0046] An electric push rod 17 is disposed on the lower surface of the dust cover 15 , and a pressure plate 18 is disposed at the output end of the electric push rod 17 .

[0047] The working principle and beneficial effects of the above technical solution are as follows: when installing the battery box 2, first separate the dust cover 15 from the charging compartment 1, then use the hook of the lifting equipment to connect the lifting ear 16, lift the mounting frame 7 out of the charging compartment 1, and then install the battery box 2 on the supporting frame 14. The battery box 2 is slidably installed on the supporting frame 14, and then the mounting frame 7 is lifted into the cooling chamber 5. The battery box 2 is immersed in the coolant, the dust cover 15 is installed, and the pressure plate 18 is pushed out by the electric push rod 17 to press the top battery box 2, thereby improving the stability of the mounting frame 7 and the battery box 2 and preventing the battery box 2 from shaking freely on the supporting frame 14.

[0048] Example 6

[0049] Based on Example 4 or 5, a guide groove is provided on the outer wall of the supporting side plate 13 away from the baffle 4, the guide groove is vertically provided, and a guide bar 19 adapted to the guide groove is provided on the inner wall of the cooling box 3, and the guide bar 19 is connected to the inner wall of the guide groove in an up-and-down sliding manner.

[0050] The working principle and beneficial effects of the above technical solution are as follows: a guide bar 19 is vertically arranged on the inner wall of the cooling box body 3, and a guide groove is arranged on the outer wall of one of the supporting side panels 13. When placing the mounting bracket 7 into the cooling cavity 5, the guide groove is first aligned with the guide bar 19, and then the supporting side panel 13 slides downward along the inner wall of the cooling box body 3, so that the mounting bracket 7 can be placed in the cooling cavity 5, and the battery box 2 can be completely immersed in the coolant. Through the cooperation of the guide bar 19 and the guide groove, the mounting bracket 7 can be accurately installed, and the mounting groove can be accurately aligned with the liquid outlet pipe 11 to avoid damage to the liquid outlet pipe 11, thereby ensuring the circulation and refrigeration of the coolant.

[0051] Example 7

[0052] On the basis of any one of Examples 4-6, Figure 6 , Figure 7As shown, positioning holes 20 are symmetrically arranged at the front and rear ends of the support frame 14, and a moving block 21 is slidably arranged in the positioning hole 20. A positioning column 22 is arranged at the lower end of the moving block 21, and the lower end of the positioning column 22 extends to the bottom of the support frame 14 and is slidably connected with the support frame 14 at a position through which the two positioning columns 22 are connected by a connecting rod 23. A first connecting spring 24 is sleeved on the outside of the positioning column 22, and one end of the first connecting spring 24 is connected to the lower surface of the moving block 21, and the other end of the first connecting spring 24 is connected to the bottom wall of the positioning hole 20. A positioning block 25 is arranged above the moving block 21 at the rear end, and the outer wall of the positioning block 25 is slidably connected to the inner wall of the positioning hole 20 up and down. The positioning block 25 is connected to the moving block 21 through a second connecting spring 26. The upper end of the positioning block 25 extends to the top of the positioning hole 20, and a guiding inclined surface is arranged on the front side of the positioning block 25.

[0053] The working principle and beneficial effects of the above technical solution are as follows: when the battery box 2 is installed on the support frame 14, the battery box 2 slides along the upper surface of the support frame 14. When the battery box 2 slides to contact the guiding inclined surface of the positioning block 25, the battery box 2 can slide along the guiding inclined surface and drive the positioning block 25 to slide downward in the positioning hole 20. The positioning block 25 drives the moving block 21 to slide downward in the positioning hole 20 through the second connecting spring 26. The first connecting spring 24 is compressed, and the moving block 21 drives the positioning column 22 to slide downward. The lower end of the positioning column 22 contacts the upper surface of the battery box 2 below. At the same time, the positioning column 22 drives the lower end of the front positioning column 22 to contact the upper surface of the front end of the battery box 2 below through the connecting rod 23. 22 fixes the battery box 2 on the support frame 14, improves the stability and reliability of the battery box 2, avoids the battery box 2 from shaking violently when the mobile charging vehicle is driving, and prevents the battery box 2 from changing position due to the impact of the coolant, avoids the disconnection of the internal connecting wires, and improves safety; when the battery box 2 contacts with the positioning block 25, the thrust of pushing the battery box 2 can determine whether the battery box 2 is installed in the specified position. When the actual thrust reaches the preset thrust, the battery box 2 is installed in the specified position. At this time, the battery box 2 can be stopped from being pushed, which improves the consistency of the position of the battery box 2. The cooperation between the positioning block 25 and the positioning column 22 further improves the stability of the battery box 2 on the support frame 14 and extends the service life of the battery box 2.

[0054] Example 8

[0055] On the basis of any one of Examples 3-7, Figure 4-Figure 7As shown, a sealing groove 27 is provided on one side of the support frame 14 along the length direction of the support frame 14, the sealing groove 27 is located at the gap, and the longitudinal section of the sealing groove 27 is an isosceles triangle shape. The sealing grooves 27 of the two adjacent support frames 14 are located on different sides of the support frame 14, and sliding cavities 28 are provided on the inner walls of the front and rear sides of the cooling box 3. A plurality of connecting holes are provided on the inner wall of the cooling box 3, and a sealing plate 29 is slidably provided in the connecting hole. The sealing plate 29 corresponds to the sealing groove 27 one by one, and one end of the sealing plate 29 close to the sealing groove 27 is adapted to the inner wall of the sealing groove 27, and the other end of the sealing plate 29 extends into the sliding cavity 28 and is connected to the sliding plate 30, and the sliding plate 30 is slidably connected to the inner wall of the sliding cavity 28 front and back, and a sliding column 31 is provided on the side of the sliding plate 30 away from the sealing plate 29, and the sliding column 31 is slidably provided in the mounting tube 32, and the sliding column 31 is connected to the inner wall of the mounting tube 32 through a reset spring 33.

[0056] The working principle and beneficial effects of the above technical solution are as follows: when installing the mounting bracket 7 to the cooling chamber 5, the guide groove is first aligned with the guide strip 19. At this time, the sealing groove 27 can be ensured to correspond to the sealing plate 29. Then the mounting bracket 7 is placed downward, and the supporting side plate 13 slides downward along the inner wall of the cooling box body 3. Under the action of the return spring 33, the sealing plate 29 can slide toward the inside of the sliding chamber 28, and the supporting frame 14 gradually passes through the sealing plate 29. When the lower end of the supporting side plate 13 contacts the bottom wall of the cooling box body 3, under the elastic force of the return spring 33, the sealing plate 29 is snapped into the corresponding sealing groove 27. Since the sealing grooves 27 of the two upper and lower adjacent supporting side plates 13 are located on different sides, when the sealing plate 29 is snapped into the corresponding sealing groove 27, an S-shaped flow channel is formed in the cooling chamber 5, and the coolant flows into the bottom of the cooling chamber 5 through the liquid outlet pipe 11, and then the coolant flows through the lower surface of the first battery box 2, taking away the lower surface of the first battery box 2 The heat on the surface is absorbed and flows from the first gap to between the second battery box 2 and the first battery box 2, and then the coolant flows between the lower surface of the second battery box 2 and the upper surface of the first battery box 2, and flows from the second gap far away from the first gap to between the third battery box 2 and the second battery box 2, and so on, until the coolant flows to the upper surface of the uppermost battery box 2, and then the coolant exceeding the height of the supporting side plate 13 and the baffle 4 can flow to the cooling plate 8 of the circulation chamber 6, and after being cooled by the refrigeration unit 9, the cooled coolant flows back into the cooling chamber 5, and circulates continuously to complete the cooling of the battery box 2 and the charging compartment 1, and replaces the traditional air cooling heat dissipation with liquid cooling, thereby improving the cooling efficiency and the energy storage capacity of the mobile charging vehicle. At the same time, the liquid cooling system can effectively reduce the overheating of the battery pack inside the battery box 2 during charging and discharging, extend the service life of the battery pack, and enhance the safety performance of the mobile charging vehicle.

[0057] Example 9

[0058] On the basis of Example 8, a sealing cover 34 is provided on the outer wall of the charging compartment 1, a driving motor 35 is provided in the sealing cover 34, a driving gear 36 is provided at the output end of the driving motor 35, racks 37 are provided on the upper and lower sides of the driving gear 36, the racks 37 are centrally symmetrically distributed about the center of the driving gear, the rack 37 is slidably connected to the inner wall of the sealing cover 34, the rack 37 slides back and forth along the inner wall of the sealing cover 34, a driving rod 38 is provided on the side of the rack 37 close to the cooling box body 3, the charging compartment 1 is connected to the inside of the sliding cavity 28 through the sliding hole, and the end of the driving rod 38 away from the rack 37 passes through the sliding hole, extends into the sliding cavity 28 and is connected to the outer wall of the mounting tube 32.

[0059] The working principle and beneficial effects of the above technical solution are as follows: the driving motor 35 is a servo motor. When the mounting bracket 7 is placed in the cooling chamber 5, the driving motor 35 is started. The driving motor 35 rotates to drive the driving gear 36 to rotate. The driving gear 36 rotates to drive the rack 37 to move in the direction of approaching each other. The rack 37 drives the driving rod 38 to move in the sliding chamber 28 toward the support frame 14. The driving rod 38 drives the mounting cylinder 32 to move. The mounting cylinder 32 drives the sliding column 31 to move through the reset spring 33. The sliding column 31 drives the sliding plate 30 to move toward the support frame 14. The sliding plate 30 drives the corresponding sealing plate 29 to slide in the connecting hole. The sealing plate 29 abuts against the inner wall of the sealing groove 27, thereby improving the sealing performance of the connection between the sealing plate 29 and the sealing groove 27, ensuring that the coolant can flow according to the flow channel, and further improving the stability of the mounting bracket 7, protecting the battery box 2.

[0060] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0061] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A liquid cooling system for a mobile charging vehicle, characterized in that: include: A charging carriage (1) and a battery box (2), a cooling box (3) is arranged in the charging carriage (1), a baffle (4) is arranged in the cooling box (3), the baffle (4) divides the cooling box (3) into a cooling chamber (5) and a circulation chamber (6), a cooling liquid is arranged in the cooling chamber (5), a plurality of battery boxes (2) are mounted on a mounting frame (7), the mounting frame (7) is immersed in the cooling liquid, a cooling plate (8) is arranged in the circulation chamber (6), a refrigeration unit (9) is arranged below the cooling plate (8), an input end of the refrigeration unit (9) is connected to the top of the cooling plate (8) through a liquid inlet pipe (10), and an output end of the refrigeration unit (9) is connected to the bottom of the cooling chamber (5) through a liquid outlet pipe (11); The mounting frame (7) comprises two supporting side plates (13) and a plurality of supporting frames (14), wherein the two supporting side plates (13) are symmetrically arranged in the cooling chamber (5), wherein the outer wall of one supporting side plate (13) contacts one side of the baffle (4), and the outer wall of the other supporting side plate (13) contacts the inner wall of the cooling box (3), and the supporting frame (14) is located between the two supporting side plates (13), and the left and right ends of the supporting frame (14) are respectively connected to the inner wall of the supporting side plate (13), and the plurality of supporting frames (14) are arranged at equal intervals from bottom to top, and the height of the baffle (4) and the supporting side plate (13) is less than the height of the cooling box (3), and the battery box (2) is placed on the supporting frame (14); A sealing groove (27) is provided on one side of the support frame (14) along the length direction of the support frame (14), the sealing groove (27) is located at the gap, the longitudinal section of the sealing groove (27) is in the shape of an isosceles triangle, the sealing grooves (27) of two upper and lower adjacent support frames (14) are located on different sides of the support frame (14), a sliding cavity (28) is provided on the inner walls of the front and rear sides of the cooling box body (3), a plurality of connecting holes are provided on the inner wall of the cooling box body (3), a sealing plate (29) is slidably provided in the connecting hole, and the sealing plate (29) and the sealing groove (27) are connected to each other. In one-to-one correspondence, one end of the sealing plate (29) close to the sealing groove (27) is adapted to the inner wall of the sealing groove (27), and the other end of the sealing plate (29) extends into the sliding cavity (28) and is connected to the sliding plate (30). The sliding plate (30) is connected to the inner wall of the sliding cavity (28) in a front-to-rear sliding manner. A sliding column (31) is provided on the side of the sliding plate (30) away from the sealing plate (29). The sliding column (31) is slidably arranged in the installation tube (32), and the sliding column (31) is connected to the inner wall of the installation tube (32) through a return spring (33).

2. According to claim 1, a liquid cooling system for a mobile charging vehicle is characterized in that: A plurality of heat dissipation fins (12) are arranged at one end of the cooling plate (8) away from the baffle (4), and the heat dissipation fins (12) extend to the outside of the charging compartment (1) at one end away from the cooling plate (8).

3. The liquid cooling system for a mobile charging vehicle according to claim 1, characterized in that: The support frame (14) is a circular frame structure, and gaps are provided between the front and rear sides of the support frame (14) and the inner wall of the cooling box body (3).

4. The liquid cooling system for a mobile charging vehicle according to claim 1, characterized in that: The front and rear ends of the supporting side plate (13) are respectively connected to the front and rear inner walls of the cooling box (3) in an up-and-down sliding manner. A mounting groove is provided at the bottom of the supporting side plate (13) near the baffle (4), and the mounting groove is matched with the liquid outlet pipe (11).

5. The liquid cooling system for a mobile charging vehicle according to claim 4, characterized in that: A dust cover plate (15) is provided at the upper end of the charging carriage (1), and the dust cover plate (15) is detachably connected to the upper end of the charging carriage (1).

6. The liquid cooling system for a mobile charging vehicle according to claim 5, characterized in that: A lifting lug (16) is provided on the upper end of the supporting side plate (13).

7. The liquid cooling system for a mobile charging vehicle according to claim 5, characterized in that: An electric push rod (17) is arranged on the lower surface of the dust cover plate (15), and a pressing plate (18) is arranged on the output end of the electric push rod (17).

8. The liquid cooling system for a mobile charging vehicle according to claim 4, characterized in that: A guide groove is arranged on the outer wall of the supporting side plate (13) away from the baffle (4), and the guide groove is arranged vertically. A guide bar (19) adapted to the guide groove is arranged on the inner wall of the cooling box (3), and the guide bar (19) is connected to the inner wall of the guide groove in an up-and-down sliding manner.

9. The liquid cooling system for a mobile charging vehicle according to claim 4, characterized in that: The support frame (14) is symmetrically provided with positioning holes (20) at both ends, a moving block (21) is slidably provided in the positioning hole (20), a positioning column (22) is provided at the lower end of the moving block (21), the lower end of the positioning column (22) extends to the lower side of the support frame (14) and is slidably connected with the support frame (14) at a position passing through the support frame (14), the lower ends of the two positioning columns (22) are connected by a connecting rod (23), a first connecting spring (24) is sleeved outside the positioning column (22), and the first connecting spring (24) One end is connected to the lower surface of the moving block (21), and the other end of the first connecting spring (24) is connected to the bottom wall of the positioning hole (20). A positioning block (25) is arranged above the moving block (21) at the rear end. The outer wall of the positioning block (25) is slidably connected to the inner wall of the positioning hole (20) up and down. The positioning block (25) is connected to the moving block (21) via a second connecting spring (26). The upper end of the positioning block (25) extends above the positioning hole (20), and a guiding inclined surface is arranged on the front side of the positioning block (25).

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