Heat dissipation assembly of energy storage battery box

Abstract

The utility model belongs to the technical field of energy storage battery boxes, and discloses a heat dissipation assembly of an energy storage battery box, which comprises a box body, a heat collection structure positioned outside the box body and on the inner wall of the box body, and a circulating heat conduction structure positioned on the inner top wall of the box body, the heat collection structure comprises transmission pipes which are located on the two sides of the box body and communicate with the box body and communicating pipes which communicate with the ends, away from the box body, of the transmission pipes, and through the design of the heat collection structure and the circulating heat conduction structure, when the energy storage battery continuously generates heat in the operation process, hot air is heated through the natural floating characteristic of the hot air; when the battery pack is used, the cooling liquid in the circulating pipe flows circularly and effectively absorbs and transfers the heat conducted by the hot air, and meanwhile, the extraction fan is started synchronously to extract the heat around each layer of battery, and the heat is guided into the communicating pipe through the connected transmission pipe. Therefore, a complete and continuous heat dissipation circulation mechanism is formed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of energy storage battery box, specifically a kind of energy storage battery box heat dissipation assembly. BACKGROUND

[0002] Energy storage battery box is a kind of equipment designed for accumulation and preservation of electric energy, it is mainly composed of an external box and the built-in multiple batteries, these batteries can store electric energy for subsequent use, in order to optimize the space utilization of energy storage battery box, internal battery is closely arranged together, these batteries are mostly chemical type, they rely on chemical reaction to realize the conversion between chemical energy and electric energy, in the charging and discharging cycle of energy storage battery box, a certain amount of heat energy is generated, which is mainly due to the electrochemical reaction occurred in battery, these reactions can make the temperature of battery rise, if temperature excessively rises, not only the performance of battery is damaged and its service life is shortened, but also security risk can be brought, therefore, the current common energy storage battery box is equipped with cooling fan, its role is effectively expelling the heat generated by battery from the inside of box, to ensure the normal operation of battery;

[0003] The existing energy storage battery box heat dissipation assembly has the following disadvantages: the existing energy storage battery box, in its internal structure design, generally uses baffle to separate numerous batteries, to realize the orderly arrangement of battery and provide a certain degree of isolation protection, however, when battery generates heat continuously in charging and discharging process, due to the natural rising characteristics of hot air, heat will gradually gather in the upper part of the inside of box, causing the temperature of top region to rise sharply, forming significant temperature difference with bottom, over a long period of time, this temperature difference effect can cause the performance of top battery to gradually decrease, capacity attenuation speed to accelerate, charging and discharging efficiency to reduce, thereby seriously affecting the working efficiency and reliability of entire energy storage battery box. UTILITY MODEL CONTENTS

[0004] To solve the problems presented in the above background art, the utility model provides an energy storage battery box heat dissipation assembly, which comprises a box body and a heat collection structure located at the outside of the box body and the inner wall of the box body, and a circulating heat conduction structure located at the top wall in the box body, and a sealing door hinged to the front face of the box body;

[0005] The heat collection structure comprises a transmission pipe located at both sides of the box body and communicated with the box body, a communication pipe communicated with the end of the transmission pipe away from the box body, and an extraction fan installed on the inner wall of the transmission pipe, and two extraction pumps symmetrically distributed and installed on the inner bottom wall of the box body, and a heat dissipation box installed in the middle of the two extraction pumps.

[0006] Preferably, the heat dissipation box is internally provided with two heat dissipation fins, and the top of the heat dissipation box is communicated with a discharge pipe.

[0007] Preferably, the circulating heat conduction structure comprises a circulating pipe installed on the inner top wall of the box and a circulating pump installed on the right side of the box.

[0008] Preferably, the output end and the input end of the circulating pump are communicated with the two ends of the circulating pipe respectively.

[0009] Preferably, the box further comprises a baffle installed at the center of the inner wall of the box and baffles arranged in linear array on both sides of the baffle, and energy storage batteries are installed above the baffles.

[0010] Preferably, the inner wall of the baffle is provided with heat dissipation holes arranged at equal intervals, the transmission pipes are eight and are divided into two groups, and the communication pipes are two and the bottom ends of the communication pipes are communicated with the input end of the extraction pump.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] The utility model discloses a heat collection structure and the design of circulating heat conduction structure, when energy storage battery generates heat continuously in the operation process, hot air utilizes its natural up-floating characteristic, and the heat of hot air is rapidly gathered in the top of the box, and the cooling liquid in the circulating pipe starts circulating flow at this moment, and the heat of hot air is effectively absorbed and shifts, realizes the preliminary shift process of heat, and simultaneously, the heat around each layer battery is extracted by the synchronous starting of extraction fan, and is guided into the communication pipe through the transmission pipe, once the heat reaches the communication pipe, the extraction pump starts immediately, and the gas filled with heat is extracted to the heat dissipation box, and when the hot gas flows through the heat dissipation fin in the heat dissipation box, the heat is rapidly radiated through the heat conduction, and the gas cooled sufficiently through the heat dissipation fin returns to the box along the exhaust pipe, thereby forming a complete and continuous heat dissipation circulation mechanism, not only effectively prevents the excessive accumulation of heat on the top of the battery box, ensures the relative balance of the temperature of each region in the box, but also significantly reduces the working temperature of the battery with the double heat dissipation effect of cooling liquid circulation and heat dissipation fin. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the whole structure schematic of the utility model Figure 1 ;

[0014] Figure 2 It is the whole structure schematic of the utility model Figure 2 ;

[0015] Figure 3 It is the whole structure schematic of the utility model Figure 3 ;

[0016] Figure 4 It is the box section structure schematic of the utility model;

[0017] Figure 5The utility model discloses a circulating pipe profile structure schematic diagram.

[0018] In the figure: 1, box body;2, heat collection structure;21, transmission pipe;22, communication pipe;23, extraction fan;24, extraction pump;25, heat dissipation box;26, heat dissipation fin;27, discharge pipe;3, circulating heat conduction structure;31, circulating pipe;32, circulating pump;4, sealing door;5, baffle;6, partition;7, energy storage battery. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the utility model.

[0020] As Figures 1 to 5 The utility model provides a kind of energy storage battery box heat dissipation assembly, including box body 1 and the heat collection structure 2 located at the outer portion of box body 1 and the inner wall of box body 1, and the circulating heat conduction structure 3 located at the inner top wall of box body 1, the front of box body 1 is hinged with sealing door 4;

[0021] Heat collection structure 2 includes transmission pipe 21 located at the both sides of box body 1 and being communicated with, and communication pipe 22 being communicated with the end of transmission pipe 21 away from box body 1, and extraction fan 23 being installed in the inner wall of transmission pipe 21, the inner bottom wall of box body 1 is installed with two extraction pumps 24 being symmetrically distributed, and heat dissipation box 25 is installed in the middle of two extraction pumps 24.

[0022] Adopt the above scheme: through the design of heat collection structure 2 and circulating heat conduction structure 3, when the energy storage battery 7 continuously generates heat in the running process, the hot air uses its natural up-floating characteristics to quickly gather at the top of the box 1, at this time the cooling liquid in the circulating pipe 31 starts to circulate, effectively absorbs and transfers the heat conducted by the hot air, realizes the preliminary heat transfer process, at the same time, the extraction fan 23 starts to extract the heat around the battery of each layer, and introduces the heat into the communication pipe 22 through the connected transmission pipe 21, once the heat reaches the communication pipe 22, the extraction pump 24 starts to pump the heat-filled gas to the heat dissipation box 25, in the heat dissipation box 25, when the hot gas flows through the heat dissipation fins 26, the heat is quickly dissipated through heat conduction, and the gas cooled by the heat dissipation fins 26 is then returned to the box 1 along the exhaust pipe 27, thereby forming a complete and continuous heat dissipation circulation mechanism, which not only effectively prevents the excessive accumulation of heat at the top of the battery box, ensures the relative balance of the temperature in each area of the box 1, but also significantly reduces the working temperature of the battery by the double heat dissipation effect of the cooling liquid circulation and the heat dissipation fins 26.

[0023] As shown in Figures 1 to 5 , the heat dissipation box 25 is internally provided with two heat dissipation fins 26 and the top of the heat dissipation box 25 is communicated with an exhaust pipe 27, and the circulating heat conduction structure 3 includes a circulating pipe 31 installed on the inner top wall of the box 1 and a circulating pump 32 installed on the right side of the box 1.

[0024] Adopt the above scheme: two heat dissipation fins 26 greatly increase the heat dissipation area, when the hot gas enters the heat dissipation box 25, the heat can be quickly conducted from the gas to the surface of the heat dissipation fins 26, and then dissipated to the surrounding environment through natural convection and heat radiation, in the case of continuous heating of high-power energy storage battery 7, the heat dissipation fins 26 can quickly absorb heat and dissipate, effectively reduce the gas temperature, improve the heat dissipation efficiency, ensure that the gas temperature discharged from the heat dissipation box 25 is significantly reduced, thereby maintaining a low-temperature environment in the battery box, reducing the negative impact of high temperature on the performance and service life of the battery, the inside of the circulating pipe 31 is filled with cooling liquid, the circulating pipe 31 is installed on the inner top wall of the box 1, which can timely capture the heat in the rising process of hot air, and the circulating pump 32 provides power for the flow of cooling liquid in the circulating pipe 31, so that the cooling liquid continuously circulates and carries away the absorbed heat, which forms an active heat transfer mechanism, compared with simply relying on natural heat dissipation, greatly speeds up the speed of heat transfer from the battery area to the heat dissipation box 25.

[0025] As shown in Figures 1 to 5 , the output end and the input end of the circulating pump 32 are respectively communicated with the two ends of the circulating pipe 31, further comprising a baffle 5 installed on the inner wall center of the box 1 and a partition plate 6 located on both sides of the baffle 5 and arranged in a linear array, and the energy storage battery 7 is installed above the partition plate 6.

[0026] The partition plate 6 separates each energy storage battery 7, which not only helps temperature control, but also has a certain degree of isolation and protection, and the inner wall of the sealing door 4 is provided with air inlet grooves distributed at equal intervals, which realizes effective exchange of external air and air inside the box 1.

[0027] As shown in Figures 1 to 5 The inner wall of the partition plate 6 is provided with heat dissipation holes distributed at equal intervals, eight transmission pipes 21 are arranged and divided into two groups, and two communication pipes 22 are arranged, and the bottom end of the communication pipe 22 is communicated with the input end of the extraction pump 24.

[0028] The above scheme: the inner wall of the partition plate 6 is uniformly provided with heat dissipation holes, so that the heat generated by the energy storage battery 7 working on the partition plate 6 can be effectively diffused to the surrounding through the heat dissipation holes in addition to being naturally dissipated upward, and the air cooled after being cooled by the heat dissipation fins 26 is guided to each energy storage battery 7 after being discharged through the discharge pipe 27 under the action of the heat dissipation holes, further promoting the balanced distribution and effective dissipation of heat.

[0029] The working principle of the utility model:

[0030] Firstly, the energy storage battery 7 generates heat in operation, and the hot air naturally rises to the top of the box 1, at this time, the circulating pump 32 is started, and the cooling liquid in the circulating pipe 31 is driven to start circulating flow, the cooling liquid absorbs the heat conducted by the hot air, and the heat is preliminarily transferred, then the extraction fan 23 installed in the inner wall of the transmission pipe 21 is started, and the heat around each layer of energy storage battery 7 is extracted, and is gathered into two communication pipes 22 through eight transmission pipes 21, the bottom end of the communication pipe 22 is communicated with the input end of the extraction pump 24, and the extraction pump 24 rapidly pumps the gas full of heat to the heat dissipation box 25, in the heat dissipation box 25, the hot gas flows through two heat dissipation fins 26, the heat is dissipated to the surrounding environment through heat conduction and heat radiation, the gas is cooled, and the cooled gas is discharged through the discharge pipe 27, and then is transmitted to each energy storage battery 7 under the guidance of the heat dissipation holes in the inner wall of the partition plate 6, promoting the balanced distribution and further dissipation of heat, forming a complete heat dissipation cycle, at the same time, the air inlet grooves realize the exchange of external air and air inside the box 1, supplement fresh air, assist heat dissipation and maintain the air pressure balance in the box 1, ensure that the whole heat dissipation process continues and is efficient, guarantee that the energy storage battery 7 is always in a suitable working temperature environment, prolong the service life and maintain the performance stability.

[0031] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0032] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. An energy storage battery pack heat dissipation assembly, characterized in that: The utility model relates to a heat dissipation device, including box (1) and the heat collection structure (2) at the outer wall of box (1) and the inner wall of box (1), and the circulating heat conduction structure (3) at the top wall in box (1), the front of box (1) is hinged with sealed door (4); The heat collection structure (2) includes transmission pipe (21) on both sides of the box (1) and connected with the box (1), and the communication pipe (22) is connected with the transmission pipe (21) away from the box (1) one end, and the extraction fan (23) is installed in the inner wall of transmission pipe (21), the inner bottom wall of the box (1) is installed with two symmetrically distributed extraction pump (24), and the middle part of two extraction pump (24) is installed with the heat dissipation box (25).

2. The energy storage battery pack heat dissipation assembly of claim 1, wherein: The inside of the heat dissipation box (25) is installed with two heat dissipation fins (26), and the top of the heat dissipation box (25) is communicated with the exhaust pipe (27).

3. The energy storage battery pack heat sink assembly of claim 1, wherein: The circulating heat conduction structure (3) includes a circulating pipe (31) installed on the inner top wall of the box (1) and a circulating pump (32) installed on the right side of the box (1).

4. The energy storage battery pack heat sink assembly of claim 3, wherein: The output end and the input end of the circulating pump (32) are respectively communicated with the two ends of the circulating pipe (31).

5. The energy storage battery pack heat sink assembly of claim 1, wherein: It also includes a baffle (5) installed on the inner wall of the box (1) and a partition (6) located on both sides of the baffle (5) and arranged in a linear array, and an energy storage battery (7) is installed above the partition (6).

6. The energy storage battery pack heat sink assembly of claim 5, wherein: The inner wall of the partition (6) is provided with equidistantly distributed heat dissipation holes, the transmission pipe (21) is provided with eight and is divided into two groups, and the communication pipe (22) is provided with two and the bottom end of the communication pipe (22) is communicated with the input end of the extraction pump (24).

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