Immersion liquid cooling sealing channel oil circulation heat dissipation system

Abstract

The utility model discloses an immersion liquid cooling sealed channel oil circulation heat dissipation system in the field of battery cooling, which comprises an oil cylinder box body and a battery cluster, an oil inlet channel and four oil outlet channels are arranged in the oil cylinder box body, the oil inlet channel and the four oil outlet channels are arranged in the same direction, the oil inlet channel is arranged in the middle area of the bottom of the oil cylinder box body, and the oil outlet channel is arranged in the middle area of the bottom of the oil cylinder box body. The four oil inlet channels are formed in the two sides of the bottom and the two sides of the top of the oil cylinder box body respectively and are communicated through the oil inlet holes, the four oil outlet channels are formed in the two sides of the bottom and the two sides of the top of the oil cylinder box body respectively and are all communicated through the oil outlet holes, the battery cluster comprises at least two stacked batteries PACK, and an inner channel communicated with the oil inlet holes is formed in the middle area of the batteries PACK. The two sides of the battery PACK are provided with side channels communicated with the corresponding oil outlet holes, the battery PACK is composed of a plurality of battery bodies, the battery bodies are distributed on the two sides of the inner channel, a flow guide heat dissipation plate is clamped between every two adjacent battery bodies, and flow guide holes enabling the inner channel to be communicated with the outer channel are formed in the flow guide heat dissipation plates, so that the heat dissipation effect of all areas is effectively improved, and the service life of the battery PACK is prolonged. And the temperature balance is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery cooling technical field, concretely is a kind of immersed liquid cooling sealed passage oil circulation heat dissipation system. BACKGROUND

[0002] With the rapid development of new energy vehicles, energy storage systems and high-performance computing fields, the innovation of battery technology has become one of the key factors to promote the progress of these industries. In these applications, battery clusters as the core components of energy storage, their heat dissipation performance is directly related to the safety, stability and service life of the battery system. The traditional air-cooled cooling method has been difficult to meet the heat dissipation needs of high-power density battery clusters, therefore, the immersed liquid cooling technology emerges as the times require.

[0003] The immersed liquid cooling technology completely or partially immerses the battery cluster in the cooling liquid, and uses the circulating flow of the cooling liquid to take away the heat generated by the battery, to achieve efficient heat dissipation. This cooling method has the advantages of high heat dissipation efficiency, uniform temperature distribution and low noise, and is particularly suitable for high-energy density and high-power output battery systems.

[0004] However, the existing immersed liquid cooling system still has some deficiencies in structural design. The flow path of the cooling liquid inside the battery cluster is not optimized, and the existing immersed liquid cooling oil circulation system basically places an entire battery cluster in an oil cylinder, which is provided with inlet and outlet oil ports. After the cooling liquid is heated by an external plate exchanger, the oil cylinder is cooled. This scheme often has a large oil cylinder and a large amount of cooling liquid, and the cooling liquid cannot be well distributed to each battery pack during circulation, resulting in high temperature of the middle part of the overall battery cluster and low temperature of the surrounding battery cells, large overall temperature difference, and poor heat dissipation effect. SUMMARY

[0005] In order to overcome the deficiencies of the prior art, the utility model provides an immersed liquid cooling sealed passage oil circulation heat dissipation system, which can effectively solve the technical problem of uneven distribution of cooling liquid affecting heat dissipation effect.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] The utility model provides an immersion liquid cooling sealed passage oil circulation heat abstracting system, including the oil cylinder box and the battery cluster, the battery cluster sets up in the inside of oil cylinder box, be provided with oil inlet channel and four oil outlet channels in the oil cylinder box, oil inlet channel and four oil outlet channels homeward bound setting, oil inlet channel is located in the bottom intermediate area of oil cylinder box, and the oil inlet channel is through setting up a plurality of oil inlet holes and oil cylinder box inside conduction, four oil outlet channels are located in the bottom both sides and top both sides of oil cylinder box, and four oil outlet channels all through setting up a plurality of oil outlet holes and oil cylinder box inside conduction, the outside of oil cylinder box is set up with the oil inlet of oil inlet channel one end conduction and four oil outlet that correspond to the oil outlet channel one end conduction.

[0008] The battery cluster includes at least two stacked battery PACKS, the middle region of the battery PACK is provided with an inner channel communicated with the oil inlet hole, and both sides of the battery PACK are provided with side channels communicated with the corresponding oil outlet hole.

[0009] The battery PACK is composed of a plurality of battery bodies, the battery bodies are distributed on both sides of the inner channel, and a flow guide heat dissipation plate is clamped between adjacent two battery bodies, and the inner part of the flow guide heat dissipation plate is provided with a flow guide hole for communicating the inner channel with the outer channel.

[0010] Further, the battery cluster further includes a mounting frame for mounting and fixing all the battery PACKS.

[0011] Further, a plurality of side sealing plates for sealing both ends of the inner channel and a top sealing plate for sealing the top of the inner channel are mounted on the mounting frame, and the side sealing plates are arranged in the same direction as the flow guide heat dissipation plates.

[0012] Further, both ends of the battery PACK are provided with fixing members for connecting and fixing the side sealing plates.

[0013] Further, the oil outlet holes on both sides of the top of the oil cylinder box are arranged at the bottom of the oil outlet channels, and the oil outlet holes on both sides of the bottom of the oil cylinder box are arranged at the top of the oil outlet channels.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] The utility model discloses an inner channel and a side channel for unidirectional flow of cooling liquid are arranged in the oil cylinder box, and the flow guide heat dissipation plate clamped between the battery bodies is communicated between the inner channel and the side channel, the cooling liquid is shunted to both sides when flowing, and the heat released by the battery bodies is continuously absorbed, so that the battery bodies are rapidly cooled, the heat dissipation effect is improved, and the problem of uneven distribution of the cooling liquid is avoided after centralized distribution, and the temperature consistency of the entire battery cluster is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1It is external structure schematic view of the embodiment of the utility model;

[0017] Figure 2 It is battery cluster top direction schematic view of the embodiment of the utility model oil cylinder box body connection;

[0018] Figure 3 It is battery cluster overhead structure schematic view of the embodiment of the utility model oil cylinder box body connection;

[0019] Figure 4 It is battery cluster structure schematic view of the embodiment of the utility model;

[0020] Figure 5 It is battery PACK stack structure connection schematic view of the embodiment of the utility model;

[0021] Figure 6 It is the embodiment of the utility model Figure 5 It is the enlarged schematic view of A part structure in the embodiment of the utility model;

[0022] Figure 7 It is the internal structure schematic view of the embodiment of the utility model oil cylinder box body;

[0023] Figure 8 It is the cross section schematic view of the embodiment of the utility model oil cylinder box body;

[0024] Mark in the drawing:

[0025] 1-oil cylinder box body, 2-battery cluster, 3-oil inlet channel, 4-oil outlet channel, 5-oil inlet hole, 6-oil outlet hole, 7-oil inlet, 8-oil outlet;

[0026] 201-battery PACK, 202-inner channel, 203-side channel, 204-mounting frame, 205-side sealing plate, 206-top sealing plate, 207-fixing part;

[0027] 221-battery body, 222-flow guide heat dissipation plate, 223-flow guide hole. DETAILED DESCRIPTION

[0028] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0029] As Figures 1-8 shown, the utility model provides a kind of immersion liquid cooling sealing passage oil circulation heat dissipation system, mainly for reducing the temperature of each battery body 221 in battery cluster 2, to avoid the problem of battery body 221 temperature being too high.

[0030] The immersed liquid cooling sealed channel oil circulating energy storage system is mainly composed of an oil cylinder box body 1 and a battery cluster 2, wherein the battery cluster 2 is arranged in the inside of the oil cylinder box body 1 and is immersed in the cooling liquid filled in the inside of the oil cylinder box body 1. In the technical solution, the cooling liquid filled in the inside of the oil cylinder box body 1 is in a flowing state, the cooling liquid with a lower temperature is injected into the oil cylinder box body 1, heat exchange occurs after the cooling liquid with a lower temperature contacts the battery cluster 2 in the oil cylinder box body 1, and then the cooling liquid with a higher temperature is discharged, which is used to reduce the temperature of each battery body 221 in the battery cluster 2. In this regard, an oil inlet channel 3 and four oil outlet channels 4 are arranged in the oil cylinder box body 1, the oil inlet channel 3 is mainly used to inject the cooling liquid with a lower temperature into the oil cylinder box body 1, and the oil outlet channel 4 is mainly used to discharge the cooling liquid with a higher temperature. According to the requirements of customers, the top two channels or the bottom two channels can be selected as the oil outlet channels. In use, the system can support two different oil injection and discharge conditions, including: condition one, the bottom oil inlet 7 injects oil, and the bottom two sides oil outlet 8 discharges oil; and condition two, the bottom oil inlet 7 injects oil, and the top two sides oil outlet 8 discharges oil.

[0031] The specific connection structure of the oil inlet channel 3 and the oil outlet channel 4 is that the oil inlet channel 3 and the four oil outlet channels 4 are arranged in the same direction. The oil inlet channel 3 is arranged in the middle area of the bottom of the oil cylinder box body 1, and the oil inlet channel 3 is communicated with the inside of the oil cylinder box body 1 by opening a plurality of oil inlet holes 5, and the cooling liquid with a lower temperature in the oil inlet channel 3 is injected into the inside of the oil cylinder box body 1 from all the oil inlet holes 5 at the same time. In order to lengthen the time and distance of heat exchange, the four oil outlet channels 4 are arranged at the bottom two sides and the top two sides of the oil cylinder box body 1, and the four oil outlet channels 4 are all communicated with the inside of the oil cylinder box body 1 by opening a plurality of oil outlet holes 6. When the oil outlet holes 6 are arranged, the oil outlet holes 6 arranged at the top two sides of the oil cylinder box body 1 are arranged at the bottom of the oil outlet channel 4, and the oil outlet holes 6 arranged at the bottom two sides of the oil cylinder box body 1 are arranged at the top of the oil outlet channel 4. At this time, the cooling liquid with a higher temperature in the oil cylinder box body 1 enters the corresponding oil outlet channel 4 from the oil outlet holes 6 at all directions and is discharged. Through the above structure, the cooling liquid in the inside of the oil cylinder box body 1 forms a circulating flow structure, and the overall heat dissipation effect of the battery cluster 2 is improved.

[0032] In addition, an oil inlet 7 communicated with one end of the oil inlet channel 3 and four oil outlets 8 respectively communicated with one end of the corresponding oil outlet channel 4 are arranged on the outside of the oil cylinder box body 1, which facilitates users to install corresponding connecting pieces for injecting and discharging the cooling liquid, and in use, the cooling liquid with a lower temperature needs to be continuously injected through the oil inlet 7.

[0033] The structure of the battery cluster 2 immersed in the cooling liquid in the oil cylinder box 1 is composed of five stacked battery packs 201, and further, the battery pack 201 is composed of a plurality of battery bodies 221 distributed on both sides of the inner channel 202, and a flow guide heat dissipation plate 222 is clamped between the adjacent two battery bodies 221, and the flow guide hole 223 is arranged in the inner flow guide heat dissipation plate 222 to guide the flow of the inner channel 202 and the outer channel. The inner channel 202 is arranged at the middle position of the stacked battery pack 201 for flowing the cooling liquid, and the side channel 203 is arranged on both sides of the battery pack 201 and communicated with the corresponding oil outlet hole 6. The inner channel 202 is communicated with the oil inlet hole 5, so that the cooling liquid with low temperature discharged from the oil inlet hole 5 directly enters the inner channel 202 and contacts all the battery packs 201. Due to the sealing property of the inner channel 202, the cooling liquid with low temperature can only flow to the outer channel outside the battery pack 201 through the flow guide hole 223 of the flow guide heat dissipation plate 222. The heat of the battery body 221 is absorbed by the flow guide heat dissipation plate 222, and the cooling liquid absorbs the heat of the flow guide heat dissipation plate 222 during flowing to exchange heat, and the cooling liquid with high heat exchange temperature can only be discharged through the oil outlet hole 6 due to the uniqueness of the flowing direction.

[0034] It should be noted that the structure of the battery cluster 2 further comprises a mounting frame 204 for mounting and fixing all the battery packs 201, the mounting frame 204 is fixed at the bottom position in the oil cylinder box 1, and the inner channel 202 is aligned with the oil inlet hole 5, and the cooling liquid discharged from the oil inlet hole 5 can only enter the inner channel 202.

[0035] In order to further enhance the sealing property of the inner channel 202, a plurality of side sealing plates 205 for sealing both ends of the inner channel 202 and a top sealing plate 206 for sealing the top of the inner channel 202 are mounted on the mounting frame 204, wherein the side sealing plate 205 is arranged in the same direction as the flow guide heat dissipation plate 222 on the mounting frame 204, so that the cooling liquid can only flow to one end of the flow guide heat dissipation plate 222, and the fixing member 207 for further enhancing the fixation of the side sealing plate 205 is arranged at both ends of the battery pack 201.

[0036] Compared with the prior art, the inner channel 202 and the side channel 203 for unidirectional flowing of the cooling liquid are arranged in the oil cylinder box 1, and the flow guide heat dissipation plate 222 clamped between the battery bodies 221 is communicated between the inner channel 202 and the side channel 203, the cooling liquid is divided into two sides during flowing, and the heat released by the battery body 221 is continuously absorbed, so that the battery body 221 is rapidly cooled, the heat dissipation effect is improved, and the problem of uneven distribution of the cooling liquid is avoided after concentrated distribution, and the temperature consistency of the entire battery cluster 2 is ensured.

[0037] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, no reference signs in the claims being regarded as limiting the claims concerned.

Claims

1. An immersion liquid cooling sealed channel oil circulation heat dissipation system, comprising an oil cylinder box body and a battery cluster, the battery cluster is arranged in the inside of the oil cylinder box body, characterized in that: The oil cylinder box body is provided with an oil inlet channel and four oil outlet channels, the oil inlet channel and the four oil outlet channels are arranged in the same direction, the oil inlet channel is arranged in the middle area of the bottom of the oil cylinder box body, and the oil inlet channel is communicated with the inside of the oil cylinder box body through a plurality of oil inlet holes, the four oil outlet channels are respectively arranged on the two sides of the bottom and the two sides of the top of the oil cylinder box body, and the four oil outlet channels are communicated with the inside of the oil cylinder box body through a plurality of oil outlet holes, and the oil cylinder box body is provided with an oil inlet opening communicated with one end of the oil inlet channel and four oil outlet openings respectively communicated with one end of the corresponding oil outlet channel; The battery cluster comprises at least two stacked battery PACKs, the middle area of the battery PACK is provided with an inner channel communicated with the oil inlet hole, and the two sides of the battery PACK are provided with side channels communicated with the corresponding oil outlet hole; The battery PACK is composed of a plurality of battery bodies, the battery bodies are distributed on the two sides of the inner channel, a flow guide heat dissipation plate is clamped between adjacent two battery bodies, and the flow guide heat dissipation plate is provided with a flow guide hole for communicating the inner channel with the outer channel.

2. The submerged liquid cooling sealed channel oil circulating heat dissipation system according to claim 1, characterized in that: The battery cluster further comprises a mounting frame for mounting and fixing all the battery PACKs.

3. The submerged liquid cooling sealed channel oil circulating heat dissipation system according to claim 2, characterized in that: A plurality of side sealing plates for sealing the two ends of the inner channel and a top sealing plate for sealing the top of the inner channel are mounted on the mounting frame, and the side sealing plates are arranged in the same direction as the flow guide heat dissipation plate.

4. The submerged liquid cooling sealed channel oil circulating heat dissipation system according to claim 3, characterized in that: The two ends of the battery PACK are provided with fixing members for connecting and fixing the side sealing plates.

5. The system of any one of claims 1-4, wherein: The oil outlet holes on the two sides of the top of the oil cylinder box body are arranged at the bottom of the oil outlet channel, and the oil outlet holes on the two sides of the bottom of the oil cylinder box body are arranged at the top of the oil outlet channel.

Images