Liquid cooling structure based on end plate

Abstract

The utility model relates to a liquid cooling structure based on an end plate, comprising a liquid cooling bottom plate, a first side of the liquid cooling bottom plate is provided with a liquid cooling assembly used for circulation of cooling liquid; the side plate structure comprises a plurality of first side plates and second side plates, the first side plates and the second side plates are parallel to each other, the two ends of the first side plates and the two ends of the second side plates are connected with each other, the first side plates and the second side plates are arranged on the second side of the bottom plate, and a first containing groove is defined by the side plates and the bottom plate; the middle plate comprises middle plates arranged between the first accommodating grooves, the middle plates divide the first accommodating grooves into a plurality of second accommodating grooves, the second accommodating grooves are used for accommodating battery modules to be cooled, and heat-conducting glue is filled between the second accommodating grooves and the battery modules. Through the arrangement, the battery modules can be effectively cooled, and the cooling efficiency between the battery modules is improved by arranging the middle plates and the heat-conducting glue between the modules.

Description

Technical Field

[0001] The utility model relates to the field of liquid cooling structures, in particular to a liquid cooling structure based on an end plate. Background Art

[0002] At present, lithium batteries are widely used in the fields of power and energy storage due to their excellent energy density, cycle life, wide operating temperature range, and good low-temperature discharge performance. Lithium batteries are secondary rechargeable batteries. During the process of energy storage and release, they will generate a lot of heat due to their chemical properties, which poses a potential threat to themselves, personnel, and the environment. Therefore, a cooling structure is needed to cool the battery.

[0003] Existing battery cooling mechanisms can usually only be set around the entire battery pack. For module batteries, existing cooling mechanisms cannot perform heat exchange between battery modules. Due to the structural limitations of the battery modules, air is difficult to circulate in the gaps between the modules, resulting in difficulty in reducing the battery temperature in the center. Utility Model Content

[0004] To this end, the technical problem to be solved by the present invention is to overcome the problem in the prior art that it is difficult for air to circulate in the gaps between modules, resulting in difficulty in lowering the battery temperature in the center part, thereby providing a liquid cooling structure based on end plates.

[0005] In order to solve the above technical problems, the utility model provides a liquid cooling structure based on an end plate, comprising:

[0006] A liquid cooling base plate, wherein a first side of the liquid cooling base plate is provided with a liquid cooling component for circulating a cooling liquid;

[0007] The side plate structure comprises: a plurality of mutually parallel first side plates and second side plates, the first side plates and the second side plates are respectively connected to each other at both ends, the first side plates and the second side plates are arranged on the second side of the bottom plate, and the plurality of side plates and the bottom plate are surrounded to form a first receiving groove;

[0008] The intermediate plate includes an intermediate plate arranged between the first accommodating grooves, wherein the intermediate plate divides the first accommodating grooves into a plurality of second accommodating grooves, wherein the second accommodating grooves are used to accommodate battery modules to be cooled, and heat-conductive adhesive is filled between the second accommodating grooves and the battery modules.

[0009] In one embodiment of the present invention, the liquid cooling assembly includes: a flow channel plate disposed on a first side of the liquid cooling base plate, a cooling flow channel opened in the flow channel plate, and the flow channel plate and the liquid cooling base plate are sealed and connected.

[0010] In one embodiment of the utility model, the liquid cooling base plate or flow channel plate is provided with a flow channel inlet end and a flow channel outlet end, the flow channel inlet end is externally connected to a cooling liquid inlet pipe, and the flow channel outlet end is externally connected to a cooled liquid outlet pipe.

[0011] In one embodiment of the utility model, the cooling channel includes a plurality of transverse portions and a plurality of connecting portions, the transverse portions and the connecting portions are staggered, the plurality of transverse portions extend along the width direction of the channel plate and are spaced apart along the length direction of the channel plate, and the two ends of the connecting portions are respectively connected to adjacent transverse portions.

[0012] In one embodiment of the present invention, a cooling pipe is embedded in the cooling channel.

[0013] In one embodiment of the utility model, a plug plate is arranged in an annular manner on the second side of the liquid cooling bottom plate, and a slot which is sealed and adapted to the plug plate is arranged in an annular manner on the flow channel plate, and the slot is arranged in an annular manner on the cooling flow channel.

[0014] In an embodiment of the present invention, a sealing gasket is embedded in the slot or filled with a sealing medium.

[0015] In one embodiment of the present invention, the outlet end and the inlet end penetrate through the thickness of the liquid cooling bottom plate or the flow channel plate and are connected to the cooling flow channel.

[0016] In one embodiment of the present invention, the peripheral sides of the liquid cooling bottom plate and the flow channel plate are respectively provided with matching internal threaded holes, and the liquid cooling bottom plate and the flow channel plate are fixedly connected by bolts.

[0017] In one embodiment of the present invention, the flow channel inlet end and the flow channel outlet end are respectively sealed and connected with quick-connect joints.

[0018] The above technical solution of the utility model has the following beneficial effects compared with the prior art:

[0019] The utility model discloses a liquid cooling structure based on an end plate, which supports a side plate mechanism and an intermediate plate through a liquid cooling bottom and provides a circulation path for a cooling liquid. The liquid cooling bottom plate and the side plates are usually made of metal materials and have good thermal conductivity, and can effectively transfer heat from a battery module to a cooling liquid. Both ends of the first side plate and the second side plate are interconnected to form an enclosure structure. The first receiving groove is used to accommodate the intermediate plate and the battery module. The intermediate plate is arranged between the first receiving grooves to divide the first receiving groove into a plurality of second receiving grooves, and each second receiving groove is used to accommodate a battery module to be cooled. The intermediate plate is usually made of a heat-conducting insulating material to avoid a short circuit. The structure is simple, easy to manufacture and install, and can effectively cool the battery module. The cooling efficiency between the battery modules is improved by arranging the intermediate plate and the heat-conducting adhesive between the modules. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein

[0021] Figure 1 It is a structural schematic diagram of the liquid cooling bottom plate and side plate structure of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the flow channel plate and cooling flow channel of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the flow channel plate and the slot of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the liquid cooling base plate and the plug plate of the utility model.

[0025] Explanation of the reference numerals in the drawings in the specification: 1. Liquid-cooled base plate; 2. First side plate; 3. Second side plate; 4. Middle plate; 5. Support frame; 6. Quick connector; 7. Threaded hole; 8. Cooling channel; 81. Horizontal portion; 82. Connecting portion; 9. Channel plate; 10. Inlet end; 11. Outlet end; 12. Slot; 13. Insert plate. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0027] Example

[0028] Reference Figure 1-4 As shown, a liquid cooling structure based on an end plate of the utility model comprises:

[0029] A liquid cooling base plate 1, wherein a first side of the liquid cooling base plate 1 is provided with a liquid cooling component for circulating a cooling liquid;

[0030] The side plate structure includes: a plurality of mutually parallel first side plates 2 and second side plates 3, the two ends of the first side plates 2 and the second side plates 3 are respectively connected to each other, a support frame 5 is further provided between the second side plates 3 and the liquid-cooled bottom plate 1 to increase the structural stability of the second side plates 3 and the middle plate 4, the middle plate 4 can also be inserted into or welded to the support frame 5, the first side plates 2 and the second side plates 3 are provided on the second side of the bottom plate, and the plurality of the side plates and the bottom plate are enclosed to form a first accommodating groove;

[0031] The intermediate plate 4 includes an intermediate plate 4 arranged between the first accommodating grooves, wherein the intermediate plate 4 divides the first accommodating grooves into a plurality of second accommodating grooves, wherein the second accommodating grooves are used to accommodate the battery modules to be cooled, and the space between the second accommodating grooves and the battery modules is filled with thermal conductive adhesive.

[0032] The utility model describes a liquid cooling structure based on end plates, wherein the liquid cooling bottom supports the side plate mechanism and the middle plate 4 and provides a circulation path for the cooling liquid. The liquid cooling bottom plate 1 and the side plates are usually made of metal materials and have good thermal conductivity, and can effectively transfer heat from the battery module to the cooling liquid. The two ends of the first side plate 2 and the second side plate 3 are interconnected to form an enclosure structure. The first accommodating groove is used to accommodate the middle plate 4 and the battery module. The middle plate 4 is arranged between the first accommodating grooves to divide the first accommodating groove into a plurality of second accommodating grooves, and each second accommodating groove is used to accommodate a battery module to be cooled. The middle plate 4 is usually made of a heat-conducting insulating material to avoid short circuits, and can effectively cool the battery module. It has not only high cooling efficiency, but also a simple structure and is easy to manufacture and install.

[0033] See also Figure 2 , Figure 3 As shown, the liquid cooling component includes: a flow channel plate 9 arranged on the first side of the liquid cooling base plate 1, and a cooling flow channel 8 opened on the flow channel plate 9, which is used to circulate cooling liquid. The flow channel plate 9 and the liquid cooling base plate 1 are sealed and connected. The liquid cooling component is used for cooling liquid circulation and heat transfer. The flow channel plate 9 is arranged on the first side of the liquid cooling base plate 1, and the cooling flow channel 8 is opened on the flow channel plate 9. The cooling flow channel 8 is used to support and guide the flow of cooling liquid.

[0034] Continue to see Figure 2 , Figure 3 As shown, the liquid-cooled base plate 1 or the flow channel plate 9 is provided with a flow channel inlet end 10 and a flow channel outlet end 11, the flow channel inlet end 10 is externally connected to a coolant inlet pipe, and the flow channel outlet end 11 is externally connected to a cooled liquid outlet pipe, the flow channel inlet end 10 and the flow channel outlet end 11 are channels for the coolant to enter and flow out of the liquid-cooled component, the flow channel inlet end 10 is used to connect the coolant inlet pipe so that the coolant can enter the liquid-cooled component, and is used to connect the cooled liquid outlet pipe so that the coolant can flow out of the liquid-cooled component, the flow channel outlet end 11 and the flow channel inlet end 10 are located on the same side of the liquid-cooled base plate 1 or the flow channel plate 9, which is convenient for connecting the pipeline and the structural layout.

[0035] See also Figure 2 , Figure 3As shown, the cooling channel 8 includes a plurality of transverse portions 81 and a plurality of connecting portions 82, the transverse portions 81 and the connecting portions 82 are arranged alternately, the plurality of transverse portions 81 extend along the width direction of the channel plate 9 and are arranged at intervals along the length direction of the channel plate 9, the two ends of the connecting portion 82 are respectively connected to adjacent transverse portions 81, and the cooling channel 8 is configured in a serpentine shape or a grid shape so that the cooling channel 8 and the liquid-cooled base plate 1 have more contact heat exchange area, and the cooling channel 8 can pass under each second accommodating groove.

[0036] The cooling channel 8 is embedded with a cooling pipe (not shown in the figure), and the shape of the cooling pipe is adapted to the cooling channel 8. By providing an embedded cooling pipe, the probability of coolant leakage can be reduced. Since the cooling channel 8 is opened on the channel plate 9, the liquid cooling base plate 1 can be made thinner to reduce the distance between the coolant and the battery module and increase the heat exchange efficiency.

[0037] See also Figure 3 , Figure 4 As shown, the second side of the liquid-cooled base plate 1 is provided with an insert plate 13, the flow channel plate 9 is provided with a slot 12 which is sealed and adapted to the insert plate 13, the slot 12 is provided in the cooling channel 8, and the insert plate 13 is an annular structure provided on the second side of the liquid-cooled base plate 1, and cooperates with the slot 12 on the flow channel plate 9 to enhance the connection strength between the two. At the same time, in order to ensure the sealing between the liquid-cooled base plate 1 and the flow channel plate 9, the slot 12 is tightly matched with the insert plate 13 to prevent leakage of the coolant.

[0038] Continue to see Figure 3 , Figure 4 As shown, the slot 12 is embedded with a sealing gasket or filled with a sealing medium, such as a sealant or sealing grease. By filling the sealing medium in the slot 12, the sealing effect between the plug-in board 13 and the slot 12 can be further enhanced to prevent leakage of the coolant. Embedding a sealing gasket in the slot 12 can increase the contact area between the plug-in board 13 and the slot 12, and provide a certain elastic deformation ability to ensure that the plug-in board 13 and the slot 12 fit tightly, thereby improving the sealing effect.

[0039] The outlet end 11 and the inlet end 10 penetrate the thickness of the liquid cooling base plate 1 or the flow channel plate 9 and are connected to the cooling channel 8, preventing the outlet end 11 and the inlet end 10 from damaging the structure of the plug-in board 13 slot 12, and preventing the coolant from flowing out along the gap between the liquid cooling base plate 1 and the flow channel plate 9 in the absence of a cooling pipe.

[0040] See also Figure 1-Figure 4As shown, the liquid cooling base plate 1 and the flow channel plate 9 are respectively provided with matching internal threaded holes 7 on their circumferential sides, and the liquid cooling base plate 1 and the flow channel plate 9 are fixedly connected by bolts, so as to achieve a firm connection between the liquid cooling base plate 1 and the flow channel plate 9, thereby improving the reliability and durability of the liquid cooling assembly. When the liquid cooling structure needs to be maintained or parts need to be replaced, it can be achieved by removing the bolts, which is convenient and quick.

[0041] See also Figure 1 As shown, the flow channel inlet end 10 and the flow channel outlet end 11 are respectively sealed and connected with a quick connector 6, and the quick connector 6 is sealed with a sealing ring or a sealing gasket, which can effectively prevent the leakage of the coolant and facilitate the quick connection and disconnection of the pipeline of the external refrigeration equipment through a simple push-pull action.

[0042] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A liquid cooling structure based on an end plate, characterized in that: include: A liquid-cooled base plate, wherein a first side of the liquid-cooled base plate is provided with a liquid-cooled assembly for circulating a cooling liquid; The side plate structure comprises: a plurality of mutually parallel first side plates and second side plates, the first side plates and the second side plates are respectively connected to each other at both ends, the first side plates and the second side plates are arranged on the second side of the bottom plate, and the plurality of side plates and the bottom plate are surrounded to form a first receiving groove; The intermediate plate includes an intermediate plate arranged between the first accommodating grooves, wherein the intermediate plate divides the first accommodating grooves into a plurality of second accommodating grooves, wherein the second accommodating grooves are used to accommodate battery modules to be cooled, and heat-conductive adhesive is filled between the second accommodating grooves and the battery modules.

2. The liquid cooling structure based on the end plate according to claim 1, characterized in that: The liquid cooling assembly comprises: a flow channel plate arranged on a first side of the liquid cooling base plate, a cooling flow channel opened in the flow channel plate, and the flow channel plate and the liquid cooling base plate are sealed and connected.

3. The liquid cooling structure based on the end plate according to claim 2, characterized in that: The liquid cooling bottom plate or the flow channel plate is provided with a flow channel inlet end and a flow channel outlet end. The flow channel inlet end is externally connected to a cooling liquid inlet pipe, and the flow channel outlet end is externally connected to a cooled liquid outlet pipe.

4. The liquid cooling structure based on the end plate according to claim 2, characterized in that: The cooling channel includes a plurality of transverse portions and a plurality of connecting portions, wherein the transverse portions and the connecting portions are arranged alternately, the plurality of transverse portions extend along the width direction of the channel plate and are arranged at intervals along the length direction of the channel plate, and the two ends of the connecting portion are respectively connected to adjacent transverse portions.

5. The end plate-based liquid cooling structure according to claim 2, characterized in that: A cooling pipe is embedded in the cooling channel.

6. The liquid cooling structure based on the end plate according to claim 3, characterized in that: The second side of the liquid cooling bottom plate is provided with an inserting plate, the flow channel plate is provided with a slot which is sealed and adapted to the inserting plate, and the slot is provided in the cooling flow channel.

7. The liquid cooling structure based on the end plate according to claim 6, characterized in that: The slot is embedded with a sealing gasket or filled with a sealing medium.

8. The end plate-based liquid cooling structure according to claim 6, characterized in that: The outlet end and the inlet end penetrate through the thickness of the liquid cooling bottom plate or the flow channel plate and are connected to the cooling flow channel.

9. The end plate-based liquid cooling structure according to claim 1, characterized in that: The liquid cooling bottom plate and the flow channel plate are respectively provided with matching internal threaded holes on their circumferential sides, and the liquid cooling bottom plate and the flow channel plate are fixedly connected by bolts.

10. The end plate-based liquid cooling structure according to claim 2, characterized in that: The flow channel inlet end and the flow channel outlet end are respectively sealed and connected with quick-connect joints.

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