Cooling box body

Abstract

The utility model provides a cooling box body which comprises a box shell, a cover plate, a liquid inlet connector and a liquid outlet connector, the box shell comprises an inner shell body and a flow channel shell body arranged outside the inner shell body, the inner shell body is provided with a containing cavity with an opening in the top, the flow channel shell body is provided with a groove protruding outwards, the groove and the inner shell body form a cooling flow channel, and the liquid inlet connector and the liquid outlet connector are arranged in the containing cavity. A circulating opening communicated with the cooling flow channel and the containing cavity is formed in the position, corresponding to the cooling flow channel, of the inner shell, the cover plate covers the opening of the box shell, the liquid inlet connector is connected with the flow channel shell and communicated with the cooling flow channel, and the liquid outlet connector is connected with the flow channel shell and communicated with the cooling flow channel. According to the utility model, the circulation openings are formed in the periphery and the bottom surface of the inner shell corresponding to the cooling flow channels, so that the aim of simultaneously feeding liquid into five surfaces is fulfilled, the uniformity of circulating heat exchange of a cooling medium is improved, the temperature uniformity of a battery cell is improved, the temperature difference is reduced, and meanwhile, the cooling flow channels are integrated on the surface of the box wall, so that the space utilization rate of the box body is also greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery cooling, in particular to a cooling box. Background Art

[0002] In the existing technology, with the increasing demand for heat dissipation in the new energy field, the heat dissipation requirements are constantly improving. Conventional plate-type liquid cooling heat exchange has been difficult to meet the higher power heat dissipation requirements. The development of more efficient heat dissipation methods has become an inevitable trend in the development of the industry. With the continuous improvement of the charge and discharge rate, the safety performance of the battery pack has been challenged. Among many heat dissipation solutions, immersion cooling has excellent performance in terms of heat dissipation and safety.

[0003] At present, most of the immersion cooling solutions on the market are profiles and steel boxes. The oil inlet and outlet are relatively single, and separate inlet and outlet oil pipelines need to be set up inside the box. The temperature uniformity is not ideal, the overall solution is heavy, and the space utilization rate is low. At present, this problem has not been well solved.

[0004] Therefore, it is necessary to provide a cooling box to overcome the above-mentioned defects. Utility Model Content

[0005] The utility model aims to provide a cooling box.

[0006] According to one aspect of the utility model, a cooling box is provided, comprising:

[0007] A box shell, the box shell comprising an inner shell and a flow channel shell arranged outside the inner shell, the inner shell having a receiving cavity with a top opening, the flow channel shell being provided with a protruding portion protruding outward, the protruding portion and the inner shell forming a cooling flow channel, and a flow opening connecting the cooling flow channel and the receiving cavity being provided at a position corresponding to the cooling flow channel on the inner shell;

[0008] A cover plate, the cover plate is arranged at the opening of the box shell;

[0009] A liquid inlet connector, the liquid inlet connector is connected to the flow channel housing and communicates with the cooling flow channel;

[0010] A liquid outlet joint is connected to the flow channel housing and communicated with the cooling flow channel.

[0011] Preferably, the inner shell includes an inner bottom plate and inner side plates extending upwardly from the inner bottom plate. The inner bottom plate and the inner side plates are provided with flow openings.

[0012] Preferably, the flow channel shell includes a flow channel bottom plate located below the inner bottom plate and a flow channel side plate that bends upward and extends from the four sides of the flow channel bottom plate and is located outside the inner side plate. The cooling flow channel includes an inlet channel and an outlet channel located on the same flow channel side plate, and the inlet channel is located below the outlet channel.

[0013] Preferably, the liquid inlet joint is arranged on the inlet channel and communicated with the inlet channel, the liquid outlet joint is arranged on the outlet channel and communicated with the outlet channel, and the liquid inlet joint is located below the liquid outlet joint.

[0014] Preferably, the flow channel side plate includes a first flow channel side plate, a second flow channel side plate, a third flow channel side plate and a fourth flow channel side plate, the first flow channel side plate and the third flow channel side plate are arranged opposite to each other, the second flow channel side plate and the fourth flow channel side plate are arranged opposite to each other, the inlet and outlet flow channels are both arranged on the first flow channel side plate, and the inlet flow channel extends from the first flow channel side plate to the flow channel bottom plate.

[0015] Preferably, the cooling flow channel also includes a first side flow channel located on the second flow channel side plate, a second side flow channel located on the third flow channel side plate, a third side flow channel located on the fourth flow channel side plate, and a transition flow channel located on the flow channel bottom plate, the inlet flow channel is connected to the second side flow channel through the transition flow channel, the two ends of the second side flow channel are respectively connected to the first side flow channel and the third side flow channel, and the two ends of the outlet flow channel are respectively connected to the first side flow channel and the third side flow channel.

[0016] Preferably, the inner plate includes a first inner plate, a second inner plate, a third inner plate and a fourth inner plate, the first inner plate is located on the inner side of the first flow channel side plate, the second inner plate is located on the inner side of the second flow channel side plate, the third inner plate is located on the inner side of the third flow channel side plate, and the fourth inner plate is located on the inner side of the fourth flow channel side plate.

[0017] Preferably, a plurality of flow openings are respectively provided on the first inner plate along the direction of the inlet channel and the outlet channel.

[0018] Preferably, among the plurality of flow openings distributed corresponding to the outlet channels, those on both sides are vertically arranged, and those in the middle are horizontally arranged.

[0019] Preferably, the second inner plate has a plurality of the flow openings distributed along the first flow channel, the third inner plate has a plurality of the flow openings distributed along the second flow channel, the fourth inner plate has a plurality of the flow openings distributed along the third flow channel, and the inner bottom plate has a plurality of the flow openings distributed corresponding to the transition flow channel.

[0020] Compared with the prior art, the cooling box provided by the utility model has the following beneficial effects:

[0021] Due to the adoption of the above technical scheme, the utility model has the advantages of simple structure, ingenious design and low cost. By opening flow openings on the four sides of the inner shell and the bottom surface corresponding to the cooling flow channels, the purpose of simultaneous liquid entry on five surfaces is achieved, thereby increasing the uniformity of the cooling medium circulation heat exchange, improving the temperature uniformity of the battery cell and reducing the temperature difference. At the same time, the cooling flow channels are integrated into the surface of the box wall, which also greatly improves the space utilization rate of the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0023] Figure 1 It is a three-dimensional diagram of the cooling box of the utility model;

[0024] Figure 2 This is a three-dimensional diagram of the cooling box of the utility model with the cover plate removed;

[0025] Figure 3 for Figure 2 Exploded diagram of

[0026] Figure 4 for Figure 2 A stereogram from another perspective.

[0027] Among them, 1. box shell, 11. inner shell, 111. first inner plate, 112. second inner plate, 113. third inner plate, 114. fourth inner plate, 115. inner bottom plate, 116. flange, 117. accommodating chamber, 118. flow port, 12. flow channel shell, 121. first flow channel side plate, 122. second flow channel side plate, 123. third flow channel side plate, 124. fourth flow channel side plate, 125. flow channel bottom plate, 131. inlet channel, 132. outlet channel, 133. first side flow channel, 134. second side flow channel, 135. third side flow channel, 136. transition flow channel, 2. cover plate, 3. liquid inlet joint, 4. liquid outlet joint. DETAILED DESCRIPTION

[0028] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0030] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0031] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0032] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0033] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0034] See also Figure 1 and Figure 2 The present embodiment discloses a cooling box, comprising a box shell 1, a cover plate 2, a liquid inlet joint 3 and a liquid outlet joint 4. The box shell 1 comprises an inner shell 11 and a flow channel shell 12 arranged outside the inner shell 11. The inner shell 11 has a accommodating cavity 117 with a top opening, and the flow channel shell 12 is provided with a protrusion protruding outward, and the protrusion and the inner shell 11 form a cooling flow channel. A flow port 118 connecting the cooling flow channel and the accommodating cavity 117 is provided on the inner shell 11 corresponding to the cooling flow channel. The cover plate 2 is covered at the opening of the box shell 1. The liquid inlet joint 3 is connected to the flow channel shell 12 and communicated with the cooling flow channel, and the liquid outlet joint 4 is connected to the flow channel shell 12 and communicated with the cooling flow channel.

[0035] See also Figure 3 and Figure 4The inner shell 11 includes an inner bottom plate 115 and an inner side plate that bends upward and extends from the inner bottom plate 115. The inner bottom plate 115 and the inner side plate together form a receiving cavity 117 for placing the battery cell. The inner bottom plate 115 and the inner side plates around it are provided with flow openings 118. The top of the inner side plate is provided with a flange 116 that folds outward, and the cover plate 2 is connected and fixed to the flange 116. The flow channel shell 12 includes a flow channel bottom plate 125 located below the inner bottom plate 115 and a flow channel side plate that bends upward and extends from the flow channel bottom plate 125 and is located outside the inner side plate.

[0036] The flow channel side plate includes a first flow channel side plate 121, a second flow channel side plate 122, a third flow channel side plate 123 and a fourth flow channel side plate 124. The first flow channel side plate 121 and the third flow channel side plate 123 are arranged opposite to each other, and the second flow channel side plate 122 and the fourth flow channel side plate 124 are arranged opposite to each other.

[0037] The cooling channel includes an inlet channel 131 and an outlet channel 132 on the first channel side plate 121, a first side channel 133 on the second channel side plate 122, a second side channel 134 on the third channel side plate 123, a third side channel 135 on the fourth channel side plate 124, and a transition channel 136 on the channel bottom plate 125. The inlet channel 131 is located below the outlet channel 132, and the inlet channel 131 extends from the first channel side plate 121 to the channel bottom plate 125. The inlet channel 131 is connected to the second side channel 134 through the transition channel 136, and the two ends of the second channel 134 are respectively connected to the first side channel 133 and the third side channel 135, and the two ends of the outlet channel 132 are respectively connected to the first side channel 133 and the third side channel 135.

[0038] The liquid inlet connector 3 is disposed on the inlet channel 131 and communicated with the inlet channel 131 , the liquid outlet connector 4 is disposed on the outlet channel 132 and communicated with the outlet channel 132 , and the liquid inlet connector 3 is located below the liquid outlet connector 4 .

[0039] The inner plate includes a first inner plate 111, a second inner plate 112, a third inner plate 113 and a fourth inner plate 114. The first inner plate 111 is located inside the first flow channel side plate 121, the second inner plate 112 is located inside the second flow channel side plate 122, the third inner plate 113 is located inside the third flow channel side plate 123, and the fourth inner plate 114 is located inside the fourth flow channel side plate 124. The first inner plate 111 is provided with a plurality of flow openings 118 connecting the flow inlet 131 and the accommodating chamber 117 and the flow outlet 132 and the accommodating chamber 117 corresponding to the flow inlet 131 and the flow outlet 132. The flow openings 118 are distributed along the flow inlet 131 and the flow outlet 132. Among the plurality of flow openings 118 distributed corresponding to the flow outlet 132, those on both sides are vertically arranged, and those in the middle are horizontally arranged.

[0040] The second inner plate 112 has a plurality of flow openings 118 distributed along the first side channel 133 , the third inner plate 113 has a plurality of flow openings 118 distributed along the second side channel 134 , the fourth inner plate 114 has a plurality of flow openings 118 distributed along the third side channel 135 , and the inner bottom plate 115 has a plurality of flow openings 118 distributed corresponding to the transition channel 136 .

[0041] The cooling medium enters the inlet channel 131 through the liquid inlet joint 3, flows into the transition channel 136 through the inlet channel 131, flows into the second side channel 134 through the transition channel 136, flows into the first side channel 133 and the third side channel 135 on both sides through the second side channel 134, and finally merges into the outlet channel 132. At the same time, when the cooling medium flows into the inlet channel 131, it will flow into the accommodating cavity 117 through the flow opening 118 at the inlet channel 131; when the cooling medium flows into the transition channel 136, it will flow into the accommodating cavity 117 through the flow opening 118 at the transition channel 136; when the cooling medium flows into the second side channel 134, it will flow into the accommodating cavity 117 through the flow opening 118 at the second side channel 134; when the cooling medium flows into the first side channel 133 and the third side channel 135, it will flow into the accommodating cavity 117 through the flow openings 118 at the first side channel 133 and the third side channel 135. When the cooling medium liquid level in the accommodating chamber 117 is lower than the transverse flow opening 118 arranged at the outlet channel 132, the cooling medium in the outlet channel 132 flows into the accommodating chamber 117 through the transverse flow opening 118 arranged; when the cooling medium liquid level in the accommodating chamber 117 is higher than the transverse flow opening 118 arranged at the outlet channel 132, the cooling medium in the accommodating chamber 117 flows into the outlet channel 132 through the transverse flow opening 118 arranged, and then flows out through the liquid outlet joint 4.

[0042] Openings are provided around the inner shell and on the bottom surface corresponding to the cooling channels to achieve the purpose of simultaneous liquid inflow on five surfaces, thereby increasing the uniformity of the cooling medium circulation heat exchange, improving the temperature uniformity of the battery cells and reducing the temperature difference. In this embodiment, the cooling channels are integrated into the surface of the box wall, which improves the temperature uniformity of the battery cells and greatly improves the space utilization of the box. During the design, the circulation mode of the cooling channels inside the box can also be adjusted by changing the layout of the cooling channels and the size and position of the openings.

[0043] It will be apparent to those skilled in the art that various modifications and variations can be made to the above exemplary embodiments of the present invention without departing from the spirit and scope of the present invention. Therefore, it is intended that the present invention covers modifications and variations of the present invention that fall within the scope of the appended claims and their equivalent technical solutions.

Claims

1. A cooling box, characterized in that: include: A box shell, the box shell comprising an inner shell and a flow channel shell arranged outside the inner shell, the inner shell having a receiving cavity with a top opening, the flow channel shell being provided with a protruding portion protruding outward, the protruding portion and the inner shell forming a cooling flow channel, and a flow opening connecting the cooling flow channel and the receiving cavity being provided at a position corresponding to the cooling flow channel on the inner shell; A cover plate, the cover plate is arranged at the opening of the box shell; A liquid inlet connector, the liquid inlet connector is connected to the flow channel housing and communicates with the cooling flow channel; A liquid outlet joint is connected to the flow channel housing and communicated with the cooling flow channel.

2. The cooling box according to claim 1, characterized in that: The inner shell comprises an inner bottom plate and inner side plates extending upwardly from the inner bottom plate. The inner bottom plate and the inner side plates are provided with flow openings.

3. The cooling box according to claim 2, characterized in that: The flow channel shell includes a flow channel bottom plate located below the inner bottom plate and a flow channel side plate that bends upward and extends from the flow channel bottom plate and is located outside the inner plate. The cooling flow channel includes an inlet channel and an outlet channel located on the same flow channel side plate, and the inlet channel is located below the outlet channel.

4. The cooling box according to claim 3, characterized in that: The liquid inlet joint is arranged on the inlet channel and communicated with the inlet channel, the liquid outlet joint is arranged on the outlet channel and communicated with the outlet channel, and the liquid inlet joint is located below the liquid outlet joint.

5. The cooling box according to claim 4, characterized in that: The flow channel side plate includes a first flow channel side plate, a second flow channel side plate, a third flow channel side plate and a fourth flow channel side plate, the first flow channel side plate and the third flow channel side plate are arranged opposite to each other, the second flow channel side plate and the fourth flow channel side plate are arranged opposite to each other, the inlet and outlet flow channels are both arranged on the first flow channel side plate, and the inlet flow channel extends from the first flow channel side plate to the flow channel bottom plate.

6. The cooling box according to claim 4, characterized in that: The cooling channel also includes a first side channel located on the second channel side plate, a second side channel located on the third channel side plate, a third side channel located on the fourth channel side plate, and a transition channel located on the channel bottom plate. The inlet channel is connected to the second side channel through the transition channel, and the two ends of the second side channel are respectively connected to the first side channel and the third side channel, and the two ends of the outlet channel are respectively connected to the first side channel and the third side channel.

7. The cooling box according to claim 6, characterized in that: The inner plate includes a first inner plate, a second inner plate, a third inner plate and a fourth inner plate, the first inner plate is located on the inner side of the first flow channel side plate, the second inner plate is located on the inner side of the second flow channel side plate, the third inner plate is located on the inner side of the third flow channel side plate, and the fourth inner plate is located on the inner side of the fourth flow channel side plate.

8. The cooling box according to claim 7, characterized in that: The first inner plate is provided with a plurality of flow openings along the direction of the inlet channel and the outlet channel.

9. The cooling box according to claim 8, characterized in that: Among the plurality of flow openings distributed corresponding to the outlet flow channel, those on both sides are arranged vertically, and those in the middle are arranged horizontally.

10. The cooling box according to claim 9, characterized in that: The second inner plate has a plurality of flow openings distributed along the first flow channel, the third inner plate has a plurality of flow openings distributed along the second flow channel, the fourth inner plate has a plurality of flow openings distributed along the third flow channel, and the inner bottom plate has a plurality of flow openings distributed corresponding to the transition flow channel.

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