Rapid heat dissipation type cooling structure, battery box body and energy storage equipment

Abstract

The utility model relates to the technical field of energy storage structures, and discloses a rapid heat dissipation type cooling structure, a battery box body and energy storage equipment, the rapid heat dissipation type cooling structure comprises a bottom plate, the bottom plate comprises a middle plate and side plates located on the two sides of the middle plate, the middle plate is provided with a liquid inlet cooling flow channel, and the side plates are provided with liquid outlet cooling flow channels; one end of the bottom plate is fixedly connected with an adapter plate, and a communicating flow channel used for communicating the liquid inlet cooling flow channel and the liquid outlet cooling flow channel is defined between the adapter plate and the bottom plate. According to the cooling structure, the bottom plate consists of the middle plate and the side plates on the two sides, and a cooling medium flows to the side plates on the two sides from the middle plate in the cooling and heat dissipation process, so that the problem of poor cooling uniformity of the cooling structure in the battery box body in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage structures, in particular to a rapid heat dissipation cooling structure, a battery box and energy storage equipment. Background Art

[0002] In the existing battery box structure, most battery boxes use a frame structure to store and protect batteries. The current battery box structure mainly includes a bottom plate, a frame and a top cover, wherein the frame is fixedly connected to the top surface of the bottom plate so that the bottom plate and the frame form a frame structure with an open upper end. When in use, the battery can be installed and fixed in the frame structure.

[0003] Since the battery will generate heat during use, when the battery box cannot dissipate heat in time and the temperature of the battery working environment is too high, it will affect the normal operation of the battery. Therefore, the existing battery box usually has a cooling structure on the battery box, which is used to quickly dissipate heat, so that the battery is in a suitable temperature environment. Although the cooling structure provided on the battery box in the prior art can play a role in heat dissipation, the existing cooling structure is complex in structure, and the cooling structure has poor uniformity in heat dissipation of the battery in the battery box. It is necessary to improve the existing cooling structure. Utility Model Content

[0004] The utility model aims to provide a fast heat dissipation cooling structure, a battery box and an energy storage device, so as to solve the problem of poor cooling uniformity of the cooling structure in the battery box in the prior art.

[0005] The inventor analyzed the cooling structure in the prior art and believed that the existing cooling structure generally achieves heat dissipation by welding cooling pipes at the bottom of the base plate. Since the heat dissipation between the cooling pipes and the base plate is indirectly achieved through heat exchange during the heat dissipation process, the heat dissipation efficiency of the welded cooling structure is low. To address this problem, a method of directly integrally forming a cooling channel in the base plate has appeared on the market, so that the base plate can serve as a support plate while directly exchanging heat with the battery, thereby improving the heat exchange efficiency.

[0006] In actual application, since the batteries are arranged in an array in the battery case, they are cooled by the cooling structure on the bottom plate after they are heated. The inventors found that although the cooling channels in the cooling structure on the bottom plate in the prior art are arranged in a curved reciprocating manner along the bottom plate, the heat dissipation uniformity is still poor during actual use. After analyzing the core reason, the inventors believe that this is mainly because the natural heat dissipation speed on the outside of the battery case is faster, and the closer the heat is to the middle of the battery case, the less quickly it can dissipate, resulting in a situation where the temperature in the middle of the battery case is high and the surrounding areas are low. Therefore, based on this core reason, the inventors improved the existing cooling structure to improve the uniformity of heat dissipation of the entire bottom plate.

[0007] In order to achieve the above technical objectives, the utility model adopts the following technical solutions: a rapid heat dissipation cooling structure, including a bottom plate, the bottom plate including a middle plate and side plates located on both sides of the middle plate, the middle plate is provided with a liquid inlet cooling channel, and the side plates are provided with a liquid outlet cooling channel; an adapter plate is fixedly connected to one end of the bottom plate, and a connecting channel for connecting the liquid inlet cooling channel and the liquid outlet cooling channel is formed between the adapter plate and the bottom plate.

[0008] The principle of this scheme is: in this application, the bottom plate is composed of a middle plate and side plates on both sides of the middle plate, a liquid inlet cooling channel is arranged on the middle plate, and a liquid outlet cooling channel is arranged on both side plates, and the liquid inlet cooling channel and the liquid outlet cooling channel are respectively connected through connecting channels, so that during use, the cooling medium in the prior art (such as coolant, etc.) enters through the liquid inlet cooling channel, flows through the liquid inlet cooling channel, is divided into two parts, and enters the liquid outlet cooling channels on both sides through the connecting channel, and finally flows out of the bottom plate through the liquid outlet cooling channel.

[0009] The beneficial effects of this solution are:

[0010] 1. It can improve the speed and uniformity of heat dissipation of the bottom plate: Compared with the prior art, the cooling channel in the bottom plate cannot evenly dissipate heat for all batteries in the battery box. In this application, the bottom plate is divided into a middle plate and side plates on both sides, and the liquid inlet cooling channel and the liquid outlet cooling channel are both arranged in the bottom plate, so that the bottom plate structure can not only serve as a supporting structure for installing and supporting the battery, but also act as a cooling pipe to directly dissipate heat for the battery, effectively ensuring the efficiency of heat dissipation, so that the cooling structure can quickly complete heat dissipation; at the same time, in this application, the cooling medium enters the liquid inlet cooling channel from the middle position at one end of the bottom plate, so that the cooling medium first exchanges heat with the middle position corresponding to the middle plate in the bottom plate. At this time, the temperature of the cooling medium is low, and it can quickly dissipate heat for the battery with a higher temperature in the middle position, and then flow to both sides to dissipate heat for the battery with a relatively low temperature near the outside of the battery box. The heat dissipation process is more in line with the actual temperature distribution inside the battery box, and the middle part with a higher temperature in the middle is preferentially dissipated, so that the heat dissipation uniformity of the entire battery is better, so as to keep all batteries working in the same temperature environment and improve the stability of the power supply performance of the entire battery.

[0011] 2. Fast heat dissipation and more convenient processing and manufacturing: In the present application, cooling channels are arranged on the middle plate and the side plates on both sides, and the adapter plate is fixedly connected to the end of the bottom plate, so that the channel system formed by the middle plate and the side plate has a single direction and a simple structure, so that the entire cooling structure can achieve fast heat dissipation, and the installation and fixation of the adapter plate is very convenient, and the entire cooling structure can be conveniently and stably produced.

[0012] 3. More convenient to use: In the present application, the cooling medium enters the bottom plate and flows out of the bottom plate at the end of the bottom plate away from the adapter plate, that is, the liquid inlet end and the liquid outlet end of the cooling structure are located on the same side of the bottom plate, which has a simple structure, is more convenient to install, and can more conveniently arrange the cooling circulation system. Preferably, as an improvement, the liquid inlet cooling channel and the liquid outlet cooling channel are both arranged along the length direction of the bottom plate, the liquid inlet cooling channel is integrally formed on the middle plate, and the liquid outlet cooling channel is integrally formed on the side plate.

[0013] In this solution, the liquid inlet cooling channel and the liquid outlet cooling channel are both arranged along the length direction of the base plate, and the liquid inlet cooling channel is integrally formed on the middle plate, and the liquid outlet cooling channel is integrally formed on the side plate. The liquid inlet cooling channel can be formed at the same time when the middle plate is processed, and the liquid outlet cooling channel can be formed at the same time when the side plate is processed. The processing and molding of components is more convenient, and the risk of leakage in the cooling channel is lower.

[0014] Preferably, as an improvement, there are multiple liquid inlet cooling channels, which are arranged parallel to each other; there are multiple liquid outlet cooling channels on each side panel, which are arranged parallel to each other.

[0015] In the present solution, since the cooling channels are integrally formed on the corresponding plate-like structure, when a plurality of mutually parallel liquid inlet cooling channels or a plurality of mutually parallel liquid outlet cooling channels are provided, it can not only ensure that the sum of the cross-sectional areas of the channels is large enough, thereby delivering a sufficient flow of cooling medium to the bottom plate to meet the cooling requirements, but also the partition between adjacent cooling channels serves as a part of the corresponding middle plate or side plate, and has a supporting effect on the middle plate or side plate itself. For example, when a large number of liquid inlet cooling channels are provided on the middle plate, it can still be ensured that the entire middle plate has sufficient strength, so that the middle plate can stably support the battery.

[0016] Preferably, as an improvement, a sealing plate is fixedly connected to one end of the bottom plate away from the adapter plate, a liquid inlet cavity is formed between the sealing plate and the middle plate, and a liquid outlet cavity is formed between the sealing plate and the two side plates respectively; a liquid inlet is fixedly connected to the middle plate, a liquid outlet interface is fixedly connected to each side plate, the liquid inlet interface is connected to the liquid inlet cavity, and the two liquid outlet interfaces are connected to the two liquid outlet cavities respectively.

[0017] In this solution, a sealing plate structure is set up so that the sealing plate and the bottom plate form a liquid inlet cavity and a liquid outlet cavity. The cooling medium input by the liquid inlet interface first enters the liquid inlet cavity, and then enters multiple liquid inlet cooling channels from the liquid inlet cavity, so that the multiple liquid inlet cooling channels can be filled with liquid more evenly and stably, which is beneficial to improving the uniformity of heat dissipation of each liquid inlet cooling channel in the middle plate; the liquid outlet cavity is set up, so that all cooling media in all liquid outlet cooling channels in the same side plate can be quickly gathered in the liquid outlet cavity, and then output to the outside of the bottom plate through the liquid outlet interface, so that the flow of cooling medium can be completed more efficiently, thereby ensuring its efficient cooling and heat exchange effect.

[0018] Preferably, as an improvement, the contour line of the side connecting the liquid inlet cavity and the liquid inlet cooling channel is bent inwardly of the middle plate, and the contour line is symmetrically arranged along the perpendicular bisector of the width line of the middle plate, the sum of the cross-sectional areas of all the liquid inlet cooling channels is S1, the sum of the cross-sectional areas of all the liquid outlet cooling channels is S2, and S1 ≥ S2.

[0019] In the present solution, the contour line of the side where the liquid inlet cavity is connected to the liquid inlet cooling channel is bent inwardly of the middle plate, so that the liquid inlet cavity as a whole is an arc-shaped cavity bent inwardly of the middle plate, and the arc-shaped cavity is symmetrically arranged relative to the perpendicular bisector of the width line of the middle plate. When the cooling medium enters the liquid inlet cavity from the liquid inlet interface, the cooling medium in the liquid inlet cavity can enter each liquid inlet cooling channel more evenly, and at the same time, the amount of cooling medium entering the two side plates is controlled to be equal, thereby ensuring the uniformity of battery cooling by the entire bottom plate. In addition, in the present solution, S1 is set to be greater than or equal to S2. During actual use, the total amount of cooling medium is fixed. At this time, it can be ensured that the flow velocity of the cooling medium in the liquid inlet cooling channel is less than or equal to the flow velocity in the liquid outlet cooling channel, thereby allowing the cooling medium in the middle plate to have a longer heat exchange time, so as to quickly and efficiently dissipate heat in the high temperature area in the middle of the bottom plate.

[0020] The battery box includes the rapid heat dissipation cooling structure.

[0021] In this solution, the battery box includes the rapid heat dissipation cooling structure, so that the battery box can dissipate heat from the battery more quickly and evenly.

[0022] Preferably, as an improvement, vertical plates are integrally formed on the two side plates, and the two vertical plates form side frames on the left and right sides of the battery box.

[0023] In this solution, the vertical plates are directly integrally formed on the two side plates, and the vertical plates are used as side frames on the left and right sides of the battery box, which is easy to process and has a stable structure.

[0024] Preferably, as an improvement, an upper protrusion and a lower protrusion, both protruding out of the vertical plate, are fixedly connected to the outer side of the vertical plate, and a support portion is fixedly connected between the upper protrusion and the lower protrusion.

[0025] In this solution, the upper protrusion and the lower protrusion are fixedly connected on the outer side of the vertical plate, which can not only utilize the upper protrusion and the lower protrusion to enhance the strength of the battery case, thereby providing better protection for the batteries in the battery case; at the same time, in this solution, a support portion is fixedly connected between the upper protrusion and the lower protrusion, and the support portion is utilized to further enhance the strength of the battery case, thereby providing better protection for the batteries.

[0026] The energy storage device comprises the battery case, wherein the number of the battery cases is multiple and the multiple battery cases are vertically stacked and connected, and in adjacent battery cases, the lower protrusion of the upper battery case is fixedly connected to the upper protrusion of the lower battery case.

[0027] In this solution, multiple battery boxes are stacked and connected vertically. In adjacent battery boxes, the bottom plate of the upper battery box serves as the upper cover of the lower battery box, so that the batteries in the lower battery box can not only be cooled by the bottom plate of the battery box, but the bottom plate of the upper battery box can also play an auxiliary cooling role for the batteries in the battery box, thereby further improving the efficiency of battery heat dissipation. When multiple battery boxes are stacked vertically, the heat dissipation operation can still be completed efficiently and stably.

[0028] In addition, in this solution, in adjacent battery boxes, the lower protrusion of the upper battery box is fixedly connected to the upper protrusion of the lower battery box. Since both the upper protrusion and the lower protrusion protrude outside the vertical plate, when the adjacent battery boxes are stacked vertically, the adjacent battery boxes can be easily fixed, and the operation is convenient and the connection is stable. At the same time, when a battery in a battery box is abnormal, the battery box on the upper side of the abnormal battery can be loosened and fixed to the battery box, so that the abnormal battery can be quickly and conveniently repaired and replaced, etc., which is very convenient to operate.

[0029] Preferably, as an improvement, a top plate is fixedly connected to the top of the battery box at the top layer, and a top cooling channel is provided in the top plate.

[0030] In this solution, a top plate is fixedly connected to the top of the top battery box, so that the top battery box can form a sealed environment, so that the batteries in the top battery box can work stably; at the same time, a top cooling channel is set on the top plate, so that the batteries in the top battery box can also obtain efficient heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of a rapid heat dissipation cooling structure in Embodiment 1 of the present utility model.

[0032] Figure 2 for Figure 1 Exploded diagram.

[0033] Figure 3 It is a partial cross-sectional view of a liquid inlet cavity and a liquid outlet cavity arranged on the front side of the bottom plate in the first embodiment of the utility model.

[0034] Figure 4 It is a partial cross-sectional view of a connecting flow channel arranged on the rear side of the bottom plate in the first embodiment of the utility model.

[0035] Figure 5 It is a schematic diagram of the battery box in the first embodiment of the utility model.

[0036] Figure 6 It is a schematic diagram of the energy storage device in the first embodiment of the present utility model.

[0037] Figure 7 It is a schematic diagram of the energy storage device in the second embodiment of the present utility model.

[0038] Figure 8 This is a schematic diagram of the energy storage device in the third embodiment of the present utility model. DETAILED DESCRIPTION

[0039] The following is further described in detail through specific implementation methods:

[0040] The figure marks in the drawings of the specification include: bottom plate 1, middle plate 101, liquid inlet cooling channel 1011, side plate 102, liquid outlet cooling channel 1021, adapter plate 2, connecting channel 201, sealing plate 3, liquid inlet cavity 301, liquid outlet cavity 302, liquid inlet interface 4, liquid outlet interface 5, vertical plate 6, upper protrusion 601, lower protrusion 602, rear side plate 7, front side plate 8, cross beam 9, support seat 10, connecting column 11, top plate 12.

[0041] Embodiment 1

[0042] This embodiment is as shown in the attached Figure 1 As shown: the rapid heat dissipation cooling structure includes a bottom plate 1 arranged horizontally, the bottom plate 1 is composed of a middle plate 101 and side plates 102 located on the left and right sides of the middle plate 101, the middle plate 101 and the side plates 102 are fixedly connected by stir friction welding, and the bottom plate 101 is composed of a middle plate 101 and a side plate 102. Figure 3 The middle plate 101 is provided with a liquid inlet cooling channel 1011 arranged along the length direction of the bottom plate 1 through an integral molding method, and the two side plates 102 are both integrally formed with liquid outlet cooling channels 1021 arranged along the length direction of the bottom plate 1, and the number of the liquid inlet cooling channel 1011 and the number of the liquid outlet cooling channel 1021 are both multiple, and the number of the liquid outlet cooling channel 1021 on the two side plates 102 is the same and is symmetrically arranged along the middle plate 101.

[0043] Combination Figure 1 , Figure 2 , Figure 3 and Figure 4 , the back side of the bottom plate 1 is fixedly connected with an adapter plate 2, which is fixedly connected to the middle plate 101 and the two side plates 102 by means of friction stir welding, and a connecting channel 201 for connecting the liquid inlet cooling channel 1011 and the liquid outlet cooling channel 1021 is formed between the adapter plate 2 and the bottom plate 1. At the same time, the front side of the bottom plate 1 is fixedly connected with a sealing plate 3, which is fixedly connected to the middle plate 101 and the two side plates 102 by means of friction stir welding, the front end of the sealing plate 3 and the middle plate 101 forms a liquid inlet cavity 301, and the front end of the sealing plate 3 and the two side plates 102 forms two liquid outlet cavities 302, a liquid inlet interface 4 connected to the liquid inlet cavity 301 is welded on the front side of the top face of the middle plate 101, and a liquid outlet interface 5 is welded on the front side of the top face of each side plate 102, and the two liquid outlet interfaces 5 are respectively connected to the two liquid outlet cavities 302.

[0044] Specifically, the liquid inlet cooling channel 1011 and the liquid outlet cooling channel 1021 are both located in the same horizontal plane, and the liquid inlet cooling channel 1011 and the liquid outlet cooling channel 1021 are at the same height in the vertical direction. Figure 3 As shown, the contour line of the side where the liquid inlet cavity 301 on the middle plate 101 is connected to the liquid inlet cooling channel 1011 is bent toward the inside of the middle plate 101 (the contour line is shown as the dotted line in the figure), and the contour line is symmetrically arranged along the perpendicular midline of the width line of the middle plate 101, so that the liquid inlet cavity 301 forms a funnel-shaped cross-sectional structure bent toward the inside of the middle plate 101, so that after the cooling medium enters the liquid inlet cavity 301, the cooling medium can enter the multiple liquid inlet cooling channels 1011 more evenly, so that the flow rate of each liquid inlet cooling channel 1011 is not much different and the cooling effect is similar, so as to ensure the uniformity of the cooling and heat dissipation of the battery by the middle plate 101.

[0045] In addition, in this embodiment, the sum of the cross-sectional areas of all the liquid inlet cooling channels 1011 is S1, and the sum of the cross-sectional areas of all the liquid outlet cooling channels 1021 is S2, where S1 ≥ S2. Specifically, the number of the liquid inlet cooling channels 1011 is ten, and the ten liquid inlet cooling channels 1011 are symmetrically arranged along the width direction of the middle plate 101, so that the cooling medium of the five liquid inlet cooling channels 1011 on the left enters the liquid outlet cooling channel 1021 in the left side plate 102 through the connecting channel 201, and the cooling medium in the five liquid inlet cooling channels 1011 on the right enters the liquid outlet cooling channel 1021 in the right side plate 102 through the connecting channel 201. In this embodiment, S1>S2, that is, the sum of the cross-sectional areas of all the liquid inlet cooling channels 1011 is greater than the sum of the cross-sectional areas of all the liquid outlet cooling channels 1021. Therefore, in the actual cooling and heat dissipation process, the flow rate of the cooling medium in the liquid inlet cooling channel 1011 is slower, which is conducive to more sufficient heat exchange between the cooling medium and the battery and improves the heat dissipation intensity of the battery in the middle of the bottom plate 1.

[0046] In this embodiment, by setting the bottom plate 1 as the middle plate 101 and the two side plates 102, during use, the cooling medium first flows into the liquid inlet cavity 301 from the liquid inlet interface 4, and then flows into the liquid inlet cooling channel 1011 from the liquid inlet cavity 301. In the process of the cooling medium flowing through the liquid inlet cooling channel 1011, the middle position corresponding to the middle plate 101 on the bottom plate 1 can be cooled and dissipated; then the cooling medium flows from the liquid inlet cooling channel 1011 through the connecting channel 201 into the liquid outlet cooling channel 1021 of the two side plates 102. When the cooling medium flows through the liquid outlet cooling medium, the areas corresponding to the side plates 102 on the left and right sides of the bottom plate 1 can be cooled and dissipated. Finally, the cooling medium flows into the liquid outlet cavity 302, and finally flows out of the bottom plate 1 from the liquid outlet interface 5. In this embodiment, the cooling medium first dissipates heat to the middle area corresponding to the middle plate 101 on the bottom plate 1, and then dissipates heat to the corresponding areas of the side plates 102 on both sides, which is consistent with the use situation in which the battery temperature in the middle of the bottom plate 1 is higher during the actual application of the bottom plate 1. Therefore, the batteries in all ranges on the bottom plate 1 can be quickly and evenly cooled, effectively ensuring the heat dissipation efficiency and heat dissipation uniformity of all batteries.

[0047] Battery box, such as Figure 5 As shown, it includes the above-mentioned rapid heat dissipation cooling structure, wherein the bottom plate 1 serves as the bottom supporting structure of the battery box, and at the same time, a vertical plate 6 is integrally formed on the top surface of each side plate 102, and the two vertical plates 6 form the side frames on the left and right sides of the battery box, and a vertical rear side plate 7 is integrally formed on the adapter plate 2, and the rear side plate 7 forms the rear frame of the battery box, and a vertical front side plate 8 is welded on the front side of the top surface of the bottom plate 1, and the front side plate 8 forms the front frame of the battery box, so that the battery box finally forms a frame structure with an open upper end, and when in use, the battery in the prior art can be directly installed and placed in the frame structure.

[0048] Combination Figure 1 and Figure 6 In order to make the battery box have good structural strength, in the present embodiment, a transversely arranged crossbeam 9 is welded in the frame structure of the battery box, and at the same time, an upper protrusion 601 and a lower protrusion 602 protruding from the outside of the vertical plate 6 are integrally formed on the outside of the vertical plate 6. The upper protrusion 601 and the lower protrusion 602 are both arranged along the length direction of the bottom plate 1, and the upper protrusion 601 is located near the top position of the outside of the vertical plate 6, and the lower protrusion 602 is located near the bottom position of the outside of the vertical plate 6. The upper protrusion 601 and the lower protrusion 602 can be used to effectively improve the structural strength of the battery box, so that the battery box can better protect the batteries installed inside.

[0049] In the same battery box, a support portion is fixedly connected between the upper protrusion 601 and the lower protrusion 602. Figure 5and Figure 6 There are multiple support parts and the multiple support parts are arranged at equal distances along the length direction of the vertical plate 6. In this embodiment, there are three support parts on each vertical plate 6. The support part is a support seat 10. The top of the support seat 10 contacts the upper protrusion 601, and the bottom of the support seat 10 contacts the lower protrusion 602. An installation gap is provided in the support seat 10, and an operation window is provided on the outer side wall of the support seat 10. The top and bottom of the support seat 10 are respectively provided with locking holes that cooperate with the upper protrusion 601 and the lower protrusion 602. The support seat 10 can be fixedly connected between the upper protrusion 601 and the lower protrusion 602 by screws. The setting of the operation window provides an operating space for the locking process, so as to more conveniently complete the fixed connection process of the support seat 10.

[0050] It should be noted that, combined with Figure 1 and Figure 5 In this embodiment, it is claimed that all the liquid inlet cooling channels 1011 are arranged on the middle plate 101, and all the liquid outlet cooling channels 1021 are arranged on the side plate 102. However, in the actual extrusion molding process, according to the size structure of the battery box, since the side plate 102 and the vertical plate 6 are integrally formed, in order to reasonably control the operability and cost of extrusion molding, in this embodiment, one of the liquid outlet cooling channels 1021 is arranged on the middle plate 101 to reduce the horizontal length of the side plate 102, so that the side plate 102 and the vertical plate 6 can be stably and conveniently integrally formed. Figure 5 The two flow channels near the left and right sides on the middle plate 101 are both liquid outlet cooling flow channels 1021. The reason is that they are caused by the extrusion molding process. Therefore, in this embodiment, without considering factors such as the difficulty of extrusion molding, all liquid outlet cooling flow channels 1021 can be set on the side plate 102, which is the same as the content claimed in the claims. The core of this application is to set a liquid inlet cooling flow channel 1011 located in the middle of the bottom plate 1 and liquid outlet cooling flow channels 1021 located on both sides of the liquid inlet cooling flow channel 1011 in the bottom plate 1, so as to give priority to heat dissipation in the middle position of the bottom plate 1 during the cooling and heat dissipation process, and control the uniformity of heat dissipation of the battery by the entire bottom plate 1, which is specially explained here.

[0051] Energy storage equipment, combined with Figure 5 and Figure 6, including a plurality of the above-mentioned battery cases, the plurality of battery cases are vertically stacked and fixedly connected, and in two upper and lower adjacent battery cases, the lower protrusion 602 of the upper battery case contacts and is fixedly connected with the upper protrusion 601 of the lower battery case. Specifically, the lower protrusion 602 of the upper battery case fits with the upper protrusion 601 of the lower battery case, and then corresponding fixing holes are opened on the upper protrusion 601 and the lower protrusion 602, and the fixing holes are aligned with the lock holes on the support seat 10. When fixing, the upper protrusion 601, the lower protrusion 602 and the support seat 10 are directly fixed together with screws, and the fixing is simpler and more efficient.

[0052] In this embodiment, after the upper and lower battery cases are fixedly connected, the bottom plate 1 of the upper battery case can not only cool and dissipate heat for the batteries in the upper battery case, but also dissipate heat for the batteries in the lower battery case. That is, in this embodiment, the upper and lower sides of the batteries in the battery case can be cooled and dissipated at the same time, thereby further improving the heat dissipation effect on the batteries.

[0053] Embodiment 2

[0054] The difference between the second embodiment and the first embodiment is that: Figure 7 As shown, in this embodiment, after multiple battery boxes are stacked vertically, vertically arranged connecting columns 11 are fixedly connected to the outer sides of the battery boxes by screws. The connecting columns 11 fix all the battery boxes in the vertical direction, thereby making the connection of the battery boxes after vertical stacking and fixed connection more stable.

[0055] Embodiment 3

[0056] The difference between the third embodiment and the second embodiment is that: Figure 8 As shown, in this embodiment, a top plate 12 is fixedly connected to the top of the top battery box by screws. The structure of the top plate 12 is similar to the structure of the bottom plate 1 in the battery box. A top cooling channel is integrally formed in the top plate 12. The specific structure of the top cooling channel is not repeated here. The cooling channel form set on the bottom plate 1 can be referred to.

[0057] In this embodiment, on the one hand, the top plate 12 is used to seal the top opening of the top battery box, so that the batteries in the top battery box are better protected; on the other hand, in this embodiment, a top cooling channel is provided in the top plate 12, so that the upper and lower sides of the batteries in the top battery box can also be cooled and dissipated simultaneously, thereby ensuring the cooling effect of the batteries in the top battery box.

[0058] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A rapid heat dissipation cooling structure, including a bottom plate, characterized in that: The bottom plate includes a middle plate and side plates located on both sides of the middle plate, the middle plate is provided with a liquid inlet cooling channel, and the side plates are provided with a liquid outlet cooling channel; an adapter plate is fixedly connected to one end of the bottom plate, and a connecting channel for connecting the liquid inlet cooling channel and the liquid outlet cooling channel is formed between the adapter plate and the bottom plate.

2. The rapid heat dissipation cooling structure according to claim 1, characterized in that: The liquid inlet cooling channel and the liquid outlet cooling channel are both arranged along the length direction of the bottom plate. The liquid inlet cooling channel is integrally formed on the middle plate, and the liquid outlet cooling channel is integrally formed on the side plate.

3. The rapid heat dissipation cooling structure according to claim 2 is characterized in that: There are multiple liquid inlet cooling channels, which are arranged in parallel with each other; there are multiple liquid outlet cooling channels on each side plate, which are arranged in parallel with each other.

4. The rapid heat dissipation cooling structure according to claim 3 is characterized in that: A sealing plate is fixedly connected to one end of the bottom plate away from the adapter plate, a liquid inlet cavity is formed between the sealing plate and the middle plate, and a liquid outlet cavity is formed between the sealing plate and the two side plates; a liquid inlet is fixedly connected to the middle plate, a liquid outlet interface is fixedly connected to each side plate, the liquid inlet interface is connected to the liquid inlet cavity, and the two liquid outlet interfaces are connected to the two liquid outlet cavities respectively.

5. The rapid heat dissipation cooling structure according to claim 4, characterized in that: The contour line of the side where the liquid inlet cavity is connected to the liquid inlet cooling channel is bent inwardly of the middle plate, and the contour line is symmetrically arranged along the perpendicular bisector of the width line of the middle plate. The sum of the cross-sectional areas of all the liquid inlet cooling channels is S1, and the sum of the cross-sectional areas of all the liquid outlet cooling channels is S2, and S1≥S2.

6. Battery box, characterized in that: It comprises a rapid heat dissipation cooling structure as described in any one of claims 1 to 5.

7. The battery case according to claim 6, characterized in that: The two side panels are integrally formed with vertical panels, and the two vertical panels form side frames on the left and right sides of the battery box.

8. The battery case according to claim 7, characterized in that: An upper protruding portion and a lower protruding portion, both protruding out of the vertical plate, are fixedly connected to the outer side of the vertical plate, and a supporting portion is fixedly connected between the upper protruding portion and the lower protruding portion.

9. Energy storage device, characterized in that: It includes the battery case as described in claim 8, wherein the number of the battery cases is multiple and the multiple battery cases are vertically stacked and connected, and in adjacent battery cases, the lower protrusion of the upper battery case is fixedly connected to the upper protrusion of the lower battery case.

10. The energy storage device according to claim 9, characterized in that: A top plate is fixedly connected to the top of the battery box at the top layer, and a top cooling channel is arranged in the top plate.

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