Battery two-in-one thermal management system

Abstract

The invention discloses a battery two-in-one heat management system, and particularly relates to the technical field of heat management systems.The battery two-in-one heat management system comprises an upper protection plate and a lower protection plate, heat exchange cavities are formed in the upper protection plate and the lower protection plate, mounting grooves are formed in the top of the upper protection plate and the bottom of the lower protection plate, and heat exchange assemblies are arranged in the mounting grooves; the heat exchange assembly comprises two heat exchange plates which are connected up and down, two symmetrically-distributed heat exchange pipes are arranged between the two heat exchange plates, the upper protection plate and the lower protection plate are connected through a connecting assembly, the connecting assembly comprises two supporting plates, and the two supporting plates are fixed to the front side and the rear side of the top of the lower protection plate respectively. The battery is clamped through the upper protection plate and the lower protection plate, liquid in inner cavities of the upper protection plate and the lower protection plate is utilized for exchanging heat with cold air or hot air output by an automobile air conditioner, cooling and heating of the battery are achieved, centralized management and control are facilitated, energy conservation and environmental protection are facilitated, the battery endurance is improved, the two heat exchange pipes can effectively improve the heat exchange rate, and the service life of the battery is prolonged. And the cooling and heating efficiency of the battery is enhanced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of thermal management systems, more particularly to a battery two-in-one thermal management system. BACKGROUND

[0002] The battery of an electric vehicle is the core power source of the electric vehicle, and its performance (energy density, power density), safety, life and cost directly determine the vehicle's range, charging speed, use cost and safety. Currently, ternary lithium and lithium iron phosphate form a complementary pattern of "high energy" and "high safety / low cost". The battery thermal management system of an electric vehicle is one of the core technologies to ensure the safety, performance and life of the power battery. It regulates the temperature of the battery pack to ensure that the battery operates in the best working interval (usually 25-40℃), while avoiding excessive local temperature difference (generally requires temperature difference ≤5℃). With the improvement of power battery energy density (such as commercialization of solid-state batteries) and popularization of fast charging technology, the performance requirements of the thermal management system will be further improved, becoming one of the core competencies of vehicle manufacturers.

[0003] For example, the prior art with publication number CN115036612A discloses an electric vehicle battery thermal management system, which has high heat exchange efficiency, realizes two-in-one of the battery cooling and heating system, can quickly cool and heat the battery pack, can reduce energy waste, saves battery pack space, and effectively improves the energy density of the battery pack.

[0004] However, the above prior art has the following problems when in use: the traditional battery two-in-one thermal management device relies on a heat exchange film for cooling and heating, the heat exchange film has low heat exchange effect and poor heat exchange efficiency, and since the heat exchange film is arranged inside the battery, it is very time-consuming and laborious to maintain and replace. Based on this, the present application provides a battery two-in-one thermal management system with high heat exchange efficiency and convenient maintenance. SUMMARY

[0005] In order to overcome the above-mentioned defects of the prior art, the present application provides a battery two-in-one thermal management system, which clamps the battery by the upper and lower guards, uses the liquid in the inner cavities of the two guards to exchange heat with the cold air or hot air output by the air conditioner of the vehicle, realizes cooling and heating of the battery, not only facilitates centralized control, but also helps energy saving and environmental protection, improves battery range, and the two heat exchange pipes between the two heat exchange plates can effectively improve the heat exchange rate, further enhance the cooling and heating efficiency of the battery, to solve the problems in the above background technology.

[0006] In order to achieve the above object, the present application provides the following technical scheme: the battery two-in-one heat management system, including the upper guard plate and the lower guard plate, the heat exchange cavity is arranged in the upper guard plate and the lower guard plate, the installation slot is formed in the top of the upper guard plate and the bottom of the lower guard plate, the heat exchange assembly is arranged in the installation slot, the heat exchange assembly includes two heat exchange plates connected in sequence, two heat exchange pipes are arranged between the two heat exchange plates, the upper guard plate and the lower guard plate are connected through the connecting assembly, the connecting assembly includes two support plates, the two support plates are fixed on the top of the lower guard plate on the front and rear sides respectively, the sliding groove is formed in the top of the two support plates, the extension plate is fixed on the front and rear sides of the bottom of the upper guard plate, and the extension plate is arranged in the sliding groove.

[0007] In a preferred embodiment, the inner wall of one side of the two heat exchange plates is provided with a serpentine groove, and the heat exchange pipe is arranged in the serpentine groove. The serpentine groove is arranged to place the heat exchange pipe, so that the heat exchange pipe can be in contact with more liquid, thereby improving the heat exchange efficiency of the heat exchange pipe.

[0008] In a preferred embodiment, the two ends of each heat exchange pipe are respectively communicated with the air inlet pipe and the air outlet pipe, the three-way pipe is communicated between the two air inlet pipes corresponding in upper and lower directions, a plurality of storage grooves are formed in the front end of the upper guard plate and the front end of the lower guard plate, and the three-way pipe, the air inlet pipe and the air outlet pipe are arranged in the plurality of storage grooves.

[0009] In a preferred embodiment, the upper guard plate and the lower guard plate are penetrated by the liquid injection pipe, the liquid injection pipe is communicated with the inside of the heat exchange cavity, the sealing cover is threadedly connected to the two liquid injection pipes, the top plate and the bottom plate are provided with the embedding groove on one side, and the liquid injection pipe and the sealing cover are arranged in the embedding groove. The liquid injection pipe is arranged to facilitate the staff to supplement the liquid, and the sealing cover is used for sealing, so as to avoid the problem of liquid leakage.

[0010] In a preferred embodiment, the outer wall of the side away from the two support plates is provided with two round holes, the positioning bolt is threadedly connected to the inside of each round hole, the extension plate is provided with a plurality of thread holes matched with the positioning bolt on the side away from the two extension plates, the positioning bolt is threadedly connected with one of the thread holes, and the extension plate is fixed by means of the positioning bolt. In this way, the staff can quickly adjust the distance between the upper guard plate and the lower guard plate.

[0011] In a preferred embodiment, a plurality of semicircular clamping grooves are arranged in a linear array at the center of the side away from the two extension plates, a rubber clamping strip matched with the semicircular clamping groove is fixed on the side close to the two sliding grooves, the rubber clamping strip is clamped with one of the semicircular clamping grooves, and the rubber clamping strip is matched with the semicircular clamping groove. In this way, the staff can quickly determine the adjustment height of the extension plate, so as to improve the adjustment efficiency.

[0012] In a preferred embodiment, the upper and lower protective plates are each provided with a plurality of first fixing grooves arranged in a ring array, and each first fixing groove is internally provided with a first bolt, and the upper protective plate and the heat exchange plate and the lower protective plate and the heat exchange plate are fixed by the first bolts, and the first bolts are used to connect the heat exchange plate and the upper and lower protective plates, so that the heat exchange plate can be conveniently disassembled and replaced later.

[0013] In a preferred embodiment, the two heat exchange plates arranged in the upper and lower directions are fixed by a plurality of second bolts, and the plurality of second bolts are arranged at intervals in the serpentine groove, and the outer walls of the two heat exchange plates are each provided with a second fixing groove corresponding in number to the second bolts, and the second bolts are arranged in the second fixing grooves, and the second bolts are used to connect the two heat exchange plates, so that the two heat exchange plates can be conveniently disassembled by the workers for maintenance and replacement of the heat exchange pipes.

[0014] The technical effects and advantages of the present application are as follows:

[0015] 1. The upper and lower protective plates are used to clamp the battery, and the liquid in the inner cavities of the upper and lower protective plates is used to exchange heat with the cold air or hot air output by the automobile air conditioner, so that the battery is cooled and heated, and this design is convenient for centralized control, helps energy saving and environmental protection, and improves the battery endurance, and the two heat exchange pipes between the two heat exchange plates can effectively improve the heat exchange rate and further enhance the cooling and heating efficiency of the battery.

[0016] 2. The upper and lower protective plates are connected by the supporting plates and the extension plates, the distance between the upper and lower protective plates can be quickly adjusted by the workers, so that the corresponding height type of the battery can be adapted, and the practicability of the device is improved, and when the extension plates slide in the sliding grooves, the semicircular clamping grooves on the surfaces of the extension plates are clamped with the rubber clamping strips on the inner walls of the sliding grooves, each semicircular clamping groove corresponds to the position of the threaded hole, and the workers can quickly determine and adjust the height by means of the rubber clamping strips, which not only ensures that the adjustment heights of the two extension plates are consistent, but also effectively improves the adjustment efficiency.

[0017] 3. The heat exchange plates, the upper protective plate and the lower protective plate are designed to be detachable, which is convenient for the workers to disassemble and replace, and the serpentine grooves are arranged in the two heat exchange plates, so that the workers only need to place the heat exchange pipes along the serpentine grooves when reinstalling the heat exchange pipes, and this design not only has a simple structure, but also makes the maintenance very convenient. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0019] Figure 2 It is a front view of the overall structure of the present application;

[0020] Figure 3 It is a bottom view of the overall structure of the present application;

[0021] Figure 4 is a side view of the upper guard plate of the present application;

[0022] Figure 5 is a sectional view of the support plate of the present application;

[0023] Figure 6 is a schematic view of the support plate and rubber clamping strip of the present application;

[0024] Figure 7 is a top view of the heat exchange plate and heat exchange pipe of the present application;

[0025] Figure 8 is a sectional view of the upper guard plate of the present application.

[0026] The reference signs are as follows: 1, upper guard plate; 2, lower guard plate; 3, heat exchange cavity; 4, mounting groove; 5, heat exchange assembly; 6, connecting assembly; 7, air inlet pipe; 8, air outlet pipe; 9, tee pipe; 10, storage groove; 11, liquid injection pipe; 12, sealing cover; 13, round hole; 14, positioning bolt; 15, threaded hole; 16, semicircular clamping groove; 17, rubber clamping strip; 18, first fixing groove; 19, first bolt; 20, second bolt; 21, second fixing groove;

[0027] 501, heat exchange plate; 502, heat exchange pipe; 503, serpentine groove;

[0028] 601, support plate; 602, sliding groove; 603, extension plate. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] With reference to the drawings in the description, Figures 1-8 The present application provides a battery two-in-one heat management system, which comprises an upper guard plate 1 and a lower guard plate 2, heat exchange cavities 3 are arranged in the upper guard plate 1 and the lower guard plate 2, mounting grooves 4 are formed in the top of the upper guard plate 1 and the bottom of the lower guard plate 2, heat exchange assemblies 5 are arranged in the mounting grooves 4, the heat exchange assembly 5 comprises two heat exchange plates 501 connected in an up-down manner, two heat exchange pipes 502 symmetrically arranged between the two heat exchange plates 501, and the upper guard plate 1, the lower guard plate 2, the heat exchange plate 501 and the heat exchange pipe 502 can be made of heat-conducting materials, so as to improve the heat exchange rate.

[0031] Each heat exchange pipe 502 is communicated with an air inlet pipe 7 and an air outlet pipe 8 at both ends, respectively, and the two air inlet pipes 7 corresponding to the upper and lower positions are communicated with a three-way pipe 9, a plurality of receiving grooves 10 are arranged on the front end of the upper guard plate 1 and the front end of the lower guard plate 2, the three-way pipe 9, the air inlet pipe 7 and the air outlet pipe 8 are arranged in the plurality of receiving grooves 10, respectively, and the two three-way pipes 9 are communicated with the air outlet pipe of the automobile air conditioner, and the solenoid valves can be arranged on the two three-way pipes 9 for controlling the opening and closing of the three-way pipe 9.

[0032] In actual use, the air inlet pipe 7 is communicated with the air outlet of the refrigeration device, the bottom of the upper guard plate 1 and the top of the lower guard plate 2 are in contact with the top and bottom of the battery, respectively, and the heat of the battery can be conducted to the liquid in the two heat exchange cavities 3. When the battery needs to be cooled down due to high temperature, the automobile air conditioner sends cold air into the plurality of heat exchange pipes 502, and the cold air absorbs the heat of the liquid in the heat exchange cavity 3, so as to cool the battery. When the battery needs to be heated due to low temperature, the automobile air conditioner sends hot air into the plurality of heat exchange pipes 502, and the hot air heats the liquid in the heat exchange pipe 502, and then the liquid heats the battery, so as to heat the battery. Therefore, the battery can be heated without setting other heating devices, so as to save energy and protect the environment, and improve the endurance of the battery of the automobile. Since the two heat exchange pipes 502 are arranged between the two heat exchange plates 501, the heat exchange rate can be improved, and the cooling or heating efficiency of the battery can be improved.

[0033] Referring to the drawings Figure 5 and Figure 6 , the upper guard plate 1 and the lower guard plate 2 are connected by a connecting assembly 6, the connecting assembly 6 includes two support plates 601, the two support plates 601 are fixed on the top of the lower guard plate 2 on the front and rear sides, respectively, and a sliding groove 602 is arranged on the top of each support plate 601, an extension plate 603 is fixedly arranged on the front and rear sides of the bottom of the upper guard plate 1, and the extension plate 603 is arranged in the sliding groove 602.

[0034] Furthermore, two circular holes 13 are arranged on the outer wall of the side away from each support plate 601, a positioning bolt 14 is threadedly connected in each circular hole 13, a plurality of threaded holes 15 matched with the positioning bolt 14 are arranged on the side away from each extension plate 603, the positioning bolt 14 is threadedly connected with one of the threaded holes 15, a plurality of semicircular clamping grooves 16 arranged in a linear array are arranged at the center of the side away from each extension plate 603, a rubber clamping strip 17 matched with the semicircular clamping groove 16 is fixedly arranged on the side close to each sliding groove 602, and the rubber clamping strip 17 is clamped with one of the semicircular clamping grooves 16.

[0035] The upper guard plate 1 and the lower guard plate 2 are connected by the support plate 601 and the extension plate 603. The staff can loosen the positioning bolt 14 in the circular hole 13, and then pull or press the upper guard plate 1. According to the position of the threaded hole 15, the distance between the upper guard plate 1 and the lower guard plate 2 is adjusted, so that it can be suitable for batteries of corresponding heights. In addition, when the extension plate 603 slides in the slide groove 602, the semicircular groove 16 on its surface is engaged with the rubber clip 17 on the inner wall of the slide groove 602. Each semicircular groove 16 indicates the position of the corresponding threaded hole 15. The staff can use the rubber clip 17 to quickly determine the adjustment height, thereby ensuring that the height adjustment of the two extension plates 603 is the same, thereby improving the adjustment efficiency.

[0036] In order to facilitate the replacement of the heat exchange tube 502, Figure 7 As shown, a serpentine groove 503 is provided on the inner wall of the two heat exchange plates 501 on the side close to each other, and the heat exchange tube 502 is arranged inside the serpentine groove 503. The outer walls of the upper guard plate 1 and the lower guard plate 2 are provided with a plurality of first fixing grooves 18 distributed in a circular array, and each first fixing groove 18 is provided with a first bolt 19. The upper guard plate 1 and the heat exchange plate 501, and the lower guard plate 2 and the heat exchange plate 501 are fixed by the first bolts 19.

[0037] In addition, the two heat exchange plates 501 distributed upper and lower are fixed by multiple second bolts 20, and the multiple second bolts 20 are spaced apart from the serpentine groove 503. The outer walls of the two heat exchange plates 501 are each provided with a second fixing groove 21 with the same number as the second bolts 20, and the second bolts 20 are arranged inside the second fixing groove 21.

[0038] When the heat exchange tube 502 needs to be disassembled for replacement, the staff first loosens the multiple first bolts 19 between the upper guard plate 1 and the heat exchange plate 501, and between the lower guard plate 2 and the heat exchange plate 501, and then takes out the two heat exchange plates 501 from the installation groove 4. Then, the second bolts 20 in the second fixing groove 21 are taken out, and the two heat exchange plates 501 can be separated. Then, the heat exchange tube 502 can be directly taken out and replaced. When reinstalling the heat exchange tube 502, the staff only needs to place the heat exchange tube 502 according to the serpentine groove 503. The structure is simple and the inspection and maintenance are very convenient.

[0039] Due to long-term use, the liquid inside the heat exchange chamber 3 will decrease, so it is necessary to replenish the liquid. Figure 4As shown, the upper guard plate 1 side and the lower guard plate 2 side are both penetrated by liquid injection pipes 11, the liquid injection pipes 11 are communicated with the inside of the heat exchange cavity 3, the two liquid injection pipes 11 are both threadedly connected with sealing covers 12, the upper guard plate 1 and the lower guard plate 2 side are both provided with embedding grooves, the liquid injection pipes 11 and the sealing covers 12 are both arranged in the embedding grooves; the liquid injection pipes 11 are arranged to facilitate the staff to supplement liquid, and in actual use, electric exhaust valves can also be arranged on the upper guard plate 1 and the lower guard plate 2, the electric exhaust valves are communicated with the inside of the heat exchange cavity 3, so as to be used for automatic exhaust, to avoid that the inside of the heat exchange cavity 3 is too dangerous due to excessive air pressure.

[0040] Finally: the above only for the preferred embodiments of the present application, and not for limiting the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application, should be included in the protection scope of the present application.

Claims

1. The battery two-in-one thermal management system is characterized by: The invention comprises an upper guard plate (1) and a lower guard plate (2), wherein a heat exchange cavity (3) is provided in each of the upper guard plate (1) and the lower guard plate (2), a mounting groove (4) is provided at the top of the upper guard plate (1) and the bottom of the lower guard plate (2), a heat exchange assembly (5) is provided inside each of the mounting grooves (4), and the heat exchange assembly (5) comprises two heat exchange plates (501) connected up and down, and two symmetrically distributed heat exchange tubes (502) are provided between the two heat exchange plates (501); The upper guard plate (1) and the lower guard plate (2) are connected via a connecting assembly (6), wherein the connecting assembly (6) comprises two support plates (601), the two support plates (601) being fixed to the front and rear sides of the top of the lower guard plate (2), respectively, and the tops of the two support plates (601) are both provided with a sliding groove (602), and the front and rear sides of the bottom of the upper guard plate (1) are both fixed with an extension plate (603), and the extension plate (603) is arranged in the sliding groove (602).

2. The two-in-one battery thermal management system according to claim 1, characterized in that: The inner walls of the two heat exchange plates (501) on the adjacent sides are both provided with serpentine grooves (503), and the heat exchange tubes (502) are arranged inside the serpentine grooves (503).

3. The two-in-one battery thermal management system according to claim 1, characterized in that: Each heat exchange tube (502) is connected to an air intake pipe (7) and an air exhaust pipe (8) at both ends, and a three-way pipe (9) is connected between the two corresponding upper and lower air intake pipes (7). The front end of the upper guard plate (1) and the front end of the lower guard plate (2) are both provided with a plurality of receiving grooves (10), and the three-way pipe (9), the air intake pipe (7) and the air exhaust pipe (8) are respectively arranged inside the plurality of receiving grooves (10).

4. The two-in-one battery thermal management system according to claim 1, characterized in that: A liquid injection pipe (11) is passed through one side of the upper guard plate (1) and one side of the lower guard plate (2), and the liquid injection pipe (11) is communicated with the interior of the heat exchange chamber (3). A sealing cover (12) is threadedly connected to the two liquid injection pipes (11). One side of the top plate (1) and the bottom plate (2) is provided with an embedded groove, and the liquid injection pipe (11) and the sealing cover (12) are both arranged inside the embedded groove.

5. The two-in-one battery thermal management system according to claim 1, characterized in that: Two circular holes (13) are provided on the outer walls of the two support plates (601) away from each other, and a positioning bolt (14) is threadedly connected inside each circular hole (13). A plurality of threaded holes (15) adapted to the positioning bolts (14) are provided on the outer walls of the two extension plates (603) away from each other, and the positioning bolt (14) is threadedly connected to one of the threaded holes (15).

6. The two-in-one battery thermal management system according to claim 1, characterized in that: A plurality of semicircular slots (16) distributed in a linear array are provided at the center of the two extension plates (603) on the side away from each other, and a rubber clip (17) adapted to the semicircular slot (16) is fixedly provided on the side close to each other of the two slide grooves (602), and the rubber clip (17) is clipped with one of the semicircular slots (16).

7. The two-in-one battery thermal management system according to claim 1, characterized in that: The outer walls of the upper guard plate (1) and the lower guard plate (2) are each provided with a plurality of first fixing grooves (18) distributed in a circular array, each first fixing groove (18) is provided with a first bolt (19), and the upper guard plate (1) and the heat exchange plate (501) are fixed together, as are the lower guard plate (2) and the heat exchange plate (501) by means of the first bolts (19).

8. The two-in-one battery thermal management system according to claim 2, characterized in that: The two heat exchange plates (501) distributed above and below are fixed by a plurality of second bolts (20), and the plurality of second bolts (20) are spaced apart from the serpentine groove (503), wherein the outer walls of the two heat exchange plates (501) are each provided with a second fixing groove (21) having the same number as the second bolts (20), and the second bolts (20) are arranged inside the second fixing groove (21).

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