Cooling device of new energy power battery cabin

Abstract

The utility model discloses a cooling device of a new energy power battery cabin, which comprises a fixed box, and a phase change sealing cover is arranged at the top end of the fixed box; the liquid cooling mechanism is circularly arranged at the lower end in the fixed box; the cooling liquid box is arranged on the outer side of the fixed box; the at least two bottom fans are symmetrically arranged on the outer wall of the fixed box; the heat dissipation pipes are arranged on the two sides of the fixed box and communicate between the liquid cooling mechanism and the phase change sealing cover in the fixed box. In the application, when in use, the battery compartment needs to be reversely buckled on the battery compartment, the heat of the battery compartment is naturally upward during dissipation, so that the heat is transferred into the fixed box through the phase change box cover, one part of the heat is dissipated through the heat dissipation pipe, and the other part of the heat is absorbed by the liquid cooling mechanism, so that the heat exchange efficiency is accelerated, and the heat of the battery compartment can be quickly dissipated; meanwhile, the bottom fans on the two sides can blow cold air inwards to cool the liquid cooling mechanism, heat dissipated by the liquid cooling mechanism is dissipated through the heat dissipation pipes, heat accumulation is avoided, and the cooling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery compartment cooling, in particular to a cooling device for a new energy power battery compartment. Background Art

[0002] With the widespread application of new energy vehicles, power batteries, as one of their core components, temperature control has become a crucial aspect to ensure battery performance and life. In the prior art, the battery compartment guides the heat of the battery to the compartment box, resulting in the heat still existing outside the battery and continuous uninterrupted heat exchange. The heat of the battery compartment relies on the low efficiency of heat exchange with the external air, which will cause the heat to accumulate in the battery compartment and be difficult to discharge, resulting in low heat dissipation efficiency.

[0003] Therefore, the prior art still needs to be improved and enhanced. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present utility model is to provide a cooling device for a new energy power battery compartment, aiming to solve the problem of poor cooling of the battery compartment in the prior art, which causes heat accumulation in the battery compartment.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] In a first aspect, a cooling device for a new energy power battery compartment comprises:

[0007] A fixed box, with a phase change cover on the top of the fixed box;

[0008] A liquid cooling mechanism, circulated and arranged at the lower end of the fixed box;

[0009] A coolant tank is arranged outside the fixed box and located on the upper part of the fixed box, and the coolant tank is connected to the liquid cooling mechanism to supply the coolant to the liquid cooling mechanism;

[0010] At least two bottom fans are symmetrically arranged on the outer wall of the fixed box and are arranged toward the liquid cooling mechanism in the fixed box;

[0011] The heat dissipation pipes are arranged on both sides of the fixed box and are connected between the liquid cooling mechanism and the phase change cover in the fixed box.

[0012] Furthermore, the liquid cooling mechanism comprises:

[0013] A supporting liquid cooling plate is arranged on the inner wall of the bottom end of the fixed box;

[0014] The liquid cooling pipeline is circulated on the supporting liquid cooling plate, and the liquid cooling pipeline is connected to the coolant tank;

[0015] The functional liquid cooling plate is arranged on the liquid cooling pipeline, and an overheating hole is arranged on the functional liquid cooling plate, and a liquid storage plate is installed on the other side.

[0016] Furthermore, the liquid cooling mechanism also includes a heat buffer pipe, and the heat buffer pipe is arranged in the middle of the functional liquid cooling plate.

[0017] Furthermore, it also includes a central fan, which is arranged outside the fixed box and symmetrically arranged with the coolant tank, and the wind direction of the central fan is toward the fixed box.

[0018] Furthermore, the liquid cooling mechanism also includes a plurality of buffer blocks, which are disposed between the supporting liquid cooling plate and the functional liquid cooling plate and arranged in the gaps of the liquid cooling pipes.

[0019] Furthermore, a phase change superheating plate is provided at the lower end of the phase change cover, and a plurality of unidirectional diamond-shaped superheating holes are inlaid on the phase change superheating plate.

[0020] Furthermore, it also includes:

[0021] A plurality of support columns are fixedly connected to the interior of the fixed box and pass through the support liquid cooling plate, the functional liquid cooling plate and the phase change liquid cooling plate, wherein the support liquid cooling plate is fixed by tightening a fixing nut.

[0022] Furthermore, the phase change cover is provided with a plurality of fixing screws.

[0023] The technical solution adopted by the utility model has the following beneficial effects:

[0024] In the present application, it needs to be turned upside down on the battery compartment when in use. The heat in the battery compartment will naturally go upward when dissipating, and thus first pass through the phase change box cover to transfer to the fixed box. Part of the heat is dissipated through the heat pipe, and the other part of the retained heat is absorbed by the liquid cooling mechanism, which speeds up the heat exchange efficiency and allows the heat in the battery compartment to be dissipated quickly. At the same time, the bottom fans on both sides will blow cold air inward to cool the liquid cooling mechanism, and also make the heat dissipated by the liquid cooling mechanism dissipate through the heat pipe, avoiding heat accumulation and improving cooling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the structure of a cooling device for a new energy power battery compartment provided by the utility model;

[0026] Figure 2 A schematic diagram of a non-phase-change cover structure of a cooling device for a new energy power battery compartment provided by the utility model;

[0027] Figure 3 A schematic diagram of the internal structure of a cooling device for a new energy power battery compartment provided by the utility model;

[0028] Figure 4This is a schematic diagram of the structure of the internal heat dissipation pipe part of a cooling device for a new energy power battery compartment provided by the utility model.

[0029] 1-fixed box, 2-functional liquid cooling plate, 3-support liquid cooling plate, 4-buffer block, 5-bottom fan, 6-central fan, 7-liquid cooling pipe, 8-coolant tank, 9-phase change overheating plate, 10-fixing nut, 11-fixing screw, 12-heat dissipation port, 13-phase change cover, 14-heat dissipation pipe, 15-support column, 16-heat buffer pipe, 17-one-way diamond overheating hole. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0031] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component.

[0032] It should also be noted that the same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] See also Figure 1-Figure 4The utility model provides a cooling device for a new energy power battery compartment, including a fixed box 1, a liquid cooling mechanism, an air cooling mechanism, a buffer material 4, a phase change overheating plate 9 and a heat dissipation mechanism. A phase change cover 13 is provided at the top of the fixed box 1, and the liquid cooling mechanism is arranged between the fixed box 1 and the phase change cover 13; the heat dissipation mechanism is symmetrically arranged on the outer side wall of the fixed box 1; in the present application, when in use, the device is inverted on the upper end of the cooling compartment, and a thin plate phase change material is used by arranging the phase change overheating plate 9 and the phase change cover 13 between the top of the fixed box 1 and the phase change cover 13, so that the heat generated by the battery can quickly reach the fixed box 1, thereby accelerating the heat dissipation of the cooling compartment.

[0035] In this example, see Figure 1 and Figure 2 The phase change cover 13 is made of a thin plate material, and a phase change overheating plate 9 is provided at the lower end of the phase change cover 13. The phase change overheating plate 9 is inlaid with a plurality of unidirectional diamond overheating holes 17. The phase change cover 13 is also provided with a plurality of fixing screws, and the design of the diamond holes of the phase change overheating plate 9 allows the heat to be unidirectionally introduced completely into the fixed box 1. In addition, a plurality of fixing screws 11 are provided on the phase change overheating plate 9 and the phase change cover 13. The battery compartment is fixed by the fixing screws 11, which avoids the bumping of the battery compartment and improves the service life of the battery. At the same time, the heat absorbed in the fixed box 1 is dissipated to the external air through the heat dissipation component to avoid heat accumulation inside the system, thereby improving the overall heat dissipation efficiency of the battery assembly; in addition, a liquid cooling mechanism is used to achieve more efficient heat transfer and improve the heat extraction rate.

[0036] In the implementation of the present utility model, please refer to Figure 1 , Figure 3 , Figure 4 A coolant tank 8 is provided on one side of the fixed box 1, and the level of the coolant tank 8 is lower than that of the liquid cooling mechanism. Figure 1 , Figure 3 and Figure 4The liquid cooling mechanism is composed of a supporting liquid cooling plate 3, a functional liquid cooling plate 2 and a liquid cooling pipe 7. The supporting liquid cooling plate 3 is arranged on the inner wall of the bottom end of the fixed box 1, and a liquid pipe 7 is arranged above the supporting liquid cooling plate 3. The functional liquid cooling plate 2 is connected to the top of the liquid cooling pipe 7, and a cooling liquid tank 8 is connected at the outlet. After the heat reaches the functional liquid cooling plate 2, uniform overheating holes are inlaid on one side of the functional liquid cooling plate 2, and a liquid storage plate is installed on the other side. A small amount of coolant is contained in the liquid storage plate, and a heat buffer pipe 16 is inlaid in the middle of the functional liquid cooling plate 2, which is beneficial to protect the functional liquid cooling plate 2 and the preliminary cooling of the heat. The remaining uncooled heat enters the liquid cooling pipe 7 area through the overheating holes. When in use, the coolant in the coolant tank 8 flows into the liquid cooling pipe 7 under the action of gravity, and flows back to the coolant tank 8, forming a coolant circulation, continuous heat exchange, and improving cooling efficiency. Buffer blocks 4 are added to the gaps in the liquid cooling pipe 7. The buffer blocks 4 are arranged between the supporting liquid cooling plate 3 and the functional liquid cooling plate 2 to enhance the stability of the device and avoid direct collision between the liquid cooling pipe 7 and the solid box 1 when shaking externally, thereby efficiently realizing the dispersion of the remaining heat reaching the cooling device, improving safety, and enabling the cooling device to efficiently process the heat one by one.

[0037] It should be noted that the liquid cooling pipe 7 is hollow inside and stores coolant, which circulates between the liquid cooling pipe 7 and the coolant tank 8 to cool down the heat. The high-temperature liquid cooling pipe 7 after heat exchange is cooled by the cooperation of the liquid cooling pipe 7 and the air cooling mechanism, and the battery compartment is further cooled. The remaining heat that cannot be cooled is also blown away to the heat dissipation mechanism, reducing the probability of failure of the device due to high temperature.

[0038] In addition, several parallel arranged support columns 15 are fixed in the fixed box 1, and the supporting liquid cooling plate 3, the functional liquid cooling plate 2 and the phase change superheating plate 9 are fixed by the support columns 15, thereby enhancing the stability of the functional liquid cooling plate 2 and the phase change superheating plate 9, avoiding collision between components, and improving safety.

[0039] In the implementation of the present utility model, please refer to Figure 1 , Figure 2 , Figure 3The heat dissipation component includes a bottom fan 5, a central fan 6, a heat dissipation port 12 and a heat dissipation pipe 14. The heat dissipation pipe 14 is arranged on both sides of the fixed box 1 and is connected between the liquid cooling mechanism and the phase change cover 13 in the fixed box 1. The bottom fan 5 is symmetrically installed on the two outer walls of the fixed box 1. When working, it cools the liquid cooling pipe 7 and also blows part of the heat to the heat dissipation port 12. The outer walls of the bottom fan 5 and the central fan 6 are both provided with a protective frame. The heat dissipation port 12 is embedded on the top of the side wall. The heat dissipation port 12 is connected to the heat dissipation pipe 14, that is, the heat dissipation pipe 25 fixed above the bottom fan 5; the central fan 6 is embedded at one symmetrical end of the coolant tank 8 on the other side wall of the fixed box 1, and heat conduction and cooling are also performed. The cooling of the central fan 6 is to cool the entire device, ensure the safe operation of the device, and improve the heat dissipation efficiency.

[0040] The simplified operation mode of the utility model is as follows: when the heat reaches the device, the heat passes over the phase change cover 13 and then passes through the phase change superheating plate 9. The phase change superheating plate 9 allows the heat to completely pass through and reach the functional liquid cooling plate 2. The functional liquid cooling plate 2 further guides and preliminarily dissipates the heat, and under the action of the central fan 6, reaches the liquid cooling pipe 7 and the supporting liquid cooling plate 3 for further heat dissipation. Finally, under the action of the bottom fan 5, the liquid cooling pipe 7 can be cooled, and the heat that has not been completely cooled can be blown into the heat dissipation port 12 and discharged from the device through the heat dissipation pipe 14, thereby realizing multi-stage heat dissipation and cooling, avoiding heat accumulation in the battery compartment, and improving the cooling efficiency.

[0041] Those skilled in the art will readily come up with other embodiments of the present invention after considering the specification and practicing the solutions disclosed herein. The present invention is intended to cover any variations, uses or adaptations of the present invention, which follow the general principles of the present invention and include common knowledge or customary technical means in the art that are not disclosed in the present disclosure. The specification and examples are to be regarded as exemplary only, and the true scope and spirit of the present invention are indicated by the claims.

Claims

1. A cooling device for a new energy power battery compartment, characterized in that: It includes: A fixed box, with a phase change cover on the top of the fixed box; A liquid cooling mechanism, circulated and arranged at the lower end of the fixed box; A coolant tank is arranged outside the fixed box and located at the lower part of the fixed box, and the coolant is connected to the liquid cooling mechanism to pass the coolant into the liquid cooling mechanism; At least two bottom fans are symmetrically arranged on the outer wall of the fixed box and are arranged toward the liquid cooling mechanism in the fixed box; The heat dissipation pipes are arranged on both sides of the fixed box and are connected between the liquid cooling mechanism and the phase change cover in the fixed box.

2. The cooling device for the new energy power battery compartment according to claim 1, characterized in that: The liquid cooling mechanism comprises: A supporting liquid cooling plate is arranged on the inner wall of the bottom end of the fixed box; The liquid cooling pipeline is circulated on the supporting liquid cooling plate, and the liquid cooling pipeline is connected to the coolant tank; The functional liquid cooling plate is arranged on the liquid cooling pipeline, and an overheating hole is arranged on the functional liquid cooling plate, and a liquid storage plate is installed on the other side.

3. The cooling device for the new energy power battery compartment according to claim 2, characterized in that: The liquid cooling mechanism also includes a heat buffer pipe, which is arranged in the middle of the functional liquid cooling plate.

4. The cooling device for the new energy power battery compartment according to claim 1, characterized in that: It also includes a central fan, which is arranged outside the fixed box and symmetrically arranged with the coolant tank, and the wind direction of the central fan is toward the fixed box.

5. The cooling device for the new energy power battery compartment according to claim 2, characterized in that: The liquid cooling mechanism also includes a plurality of buffer blocks, which are arranged between the supporting liquid cooling plate and the functional liquid cooling plate and are arranged in the gaps of the liquid cooling pipeline.

6. The cooling device for the new energy power battery compartment according to claim 1, characterized in that: The lower end of the phase change cover is provided with a phase change superheating plate, and the phase change superheating plate is inlaid with a plurality of unidirectional diamond-shaped superheating holes.

7. The cooling device for the new energy power battery compartment according to claim 2 or 6, characterized in that: It also includes: A plurality of support columns are fixedly connected to the interior of the fixed box and pass through the support liquid cooling plate, the functional liquid cooling plate and the phase change superheating plate, wherein the support liquid cooling plate is fixed by tightening a fixing nut.

8. The cooling device for the new energy power battery compartment according to claim 1, characterized in that: The phase change cover is also provided with a plurality of fixing screws.

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