Battery water cooling plate and battery cooling device

Abstract

The utility model discloses a battery water cooling plate and a battery cooling device, which are beneficial to omitting processing steps and improving the structural strength of the device. The battery water cooling plate comprises a base plate and a water pipe installed on the first side face of the base plate, at least one part of the water pipe is arranged in a bent mode, the water pipe is provided with a connector end extending out of one side edge of the base plate, the connector end forms a cylindrical connector structure in an extrusion forming mode, and the connector end is connected with the base plate. The water pipe and the connector structure are internally provided with flow channels allowing refrigerants to flow, and the outer side wall of the connector structure is provided with an installation groove allowing the sealing ring to be installed.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery cooling field especially relates to battery water cooling plate and battery cooling device. BACKGROUND

[0002] The power of battery car is provided by battery, and the battery will generate heat in the charging and discharging process, if the heat of battery module cannot be dissipated in time, the endurance and life of battery will be greatly affected, at present, the water cooling plate is generally used to cool the battery module, the common water cooling plate includes base plate and flow channel, the flow channel can be formed by the way of slotting on the base plate, or can be formed by setting up water pipe, the joint is welded on the end of water pipe, and the joint is connected with water pump etc., but the welding way has some shortcomings, for example, the joint structure and material properties will be affected by thermal effect when welding, the welding bead is protruding after welding, which affects the external appearance, and most of them need manual welding, which is difficult to position, and the processing strength and efficiency are low. SUMMARY

[0003] The utility model discloses a battery water cooling plate which is helpful to save processing steps and improve structural strength.

[0004] Another object of the utility model is to provide a battery cooling device, which comprises the battery water cooling plate.

[0005] To achieve the above object, the battery water cooling plate provided by the utility model comprises a base plate and a water pipe installed on a first side of the base plate, at least a part of the water pipe is arranged in a bent manner, the water pipe has a joint end protruding from one side edge of the base plate, the joint end is formed into a cylindrical joint structure by extrusion molding, the water pipe and the joint structure are provided with a flow channel for refrigerant flow, and a mounting groove for mounting a sealing ring is formed on the outer side wall of the joint structure.

[0006] Preferably, the water pipe is a flat tubular member, and the base plate is a flat square plate.

[0007] Preferably, the joint structure is arranged in a perpendicular manner relative to the first side of the base plate.

[0008] Preferably, the water pipe is arranged in a multi-segment meandering manner on the first side of the base plate.

[0009] Preferably, the battery water cooling plate of the utility model further comprises a plurality of support pipes, which are arranged beside the water pipe and / or inserted between the water pipes.

[0010] Preferably, the support pipe is a flat tubular member, and the bottom surface of the support pipe is flush with the water pipe.

[0011] Preferably, the substrate comprises a second side opposite to the first side, the joint structure extends upward beyond the second side, and the second side is hot melt bonded with an insulating adhesive layer.

[0012] Preferably, the water pipe and / or the support pipe are installed on the first side of the substrate by means of gluing or welding, and a plurality of square pads are installed on the first side of the substrate and arranged on the sides of the water pipe and / or the support pipe.

[0013] Preferably, the battery water cooling plate of the utility model comprises a sealing ring installed in the mounting groove.

[0014] To achieve the second purpose, the utility model also provides a battery cooling device, which comprises the battery water cooling plate.

[0015] Compared with the prior art, the utility model forms the joint structure by extrusion molding at the joint end of the water pipe, and the water pipe and the joint structure are of an integrated structure, so that welding is not needed, and there is no welding seam, only a specific extrusion die is needed, which helps to save the processing steps and improve the structural strength. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a perspective view of the battery water cooling plate of the utility model.

[0017] Figure 2 is a perspective view of the battery water cooling plate of the utility model at another angle. DETAILED DESCRIPTION

[0018] In order to explain the technical content and structural features of the utility model in detail, the following further description is made in combination with the embodiments and the accompanying drawings.

[0019] The utility model provides a kind of battery water cooling plate, for the heat dissipation of battery module of new energy automobile (electric automobile), it can also be applied to the heat dissipation of battery module of energy storage power supply, of course, it can also be applied to other occasions needing to heat dissipation battery module.

[0020] The battery water cooling plate 100 of the utility model is described in detail as follows.

[0021] As Figure 1 And Figure 2As shown, the battery water cooling plate 100 of the utility model includes a substrate 10 and a water pipe 20 installed on the first side 11 of the substrate 10. At least a part of the water pipe 20 is arranged in a bending mode, the length of the water pipe 20 is increased, the time of the refrigerant flowing through the water pipe 20 is increased, and the heat dissipation effect of heat conduction is better. The water pipe 20 has a joint end extending from one side of the substrate 10, the joint end is formed into a cylindrical joint structure 21 by extrusion molding, the water pipe 20 and the joint structure 21 are provided with flow channels for the refrigerant to flow, and the outer side wall of the joint structure 21 is provided with a mounting groove 22 for mounting a sealing ring (not shown in the figure). When the refrigerant flows in the flow channel, the heat of the substrate 10 is taken away, and the substrate 10 is in direct contact with the battery module, so that the heat of the battery module is taken away, and the battery module is cooled. The utility model forms the joint structure 21 of the water pipe 20 by extrusion molding, the water pipe 20 and the joint structure 21 belong to an integrated structure, welding is not needed, there is no welding seam, only a special extrusion die needs to be set, which helps to save the processing steps and improve the structural strength.

[0022] Further, the battery water cooling plate 100 of the utility model further comprises a sealing ring (not shown in the figure) installed in the mounting groove 22. After the sealing ring is installed in the mounting groove 22, the sealing ring provides a sealing effect for the joint structure 21 to avoid leakage. Preferably, the mounting groove 22 is in a circular ring shape, and the sealing ring is selected as an O-shaped ring. The joint structure 21 is arranged orthogonally relative to the first side 11 of the substrate 10, so as to be connected to other equipment or pipelines.

[0023] As shown in Figure 1 and Figure 2 , the water pipe 20 is a flat tubular member, so as to reduce its own height as much as possible and make the structure more compact. The substrate 10 is a flat square plate, has a large contact area with the outside, and has a thin structure. Further, the water pipe 20 is arranged in a plurality of segments on the first side 11 of the substrate 10, the length of the water pipe 20 on the first side 11 is increased, and the heat dissipation effect is guaranteed.

[0024] As shown in Figure 1 and Figure 2 , the battery water cooling plate 100 of the utility model further comprises a plurality of support pipes 30. The support pipes 30 are arranged beside the water pipes 20 and are inserted between the water pipes 20. The support pipes 30 can strengthen the structural support of the substrate 10 and improve the structural strength. Preferably, the support pipes 30 are straight and flat tubular members, the bottom surfaces of the support pipes 30 are flush with the water pipes 20, the support pipes 30 do not protrude downward, and the overall and coordination are better.

[0025] Further, the water pipe 20 and the support pipe 30 are installed on the first side 11 of the base plate 10 by means of gluing, for example, the water pipe 20 and the support pipe 30 are glued to the first side 11 of the base plate 10 by using a glue such as dry hanging glue, facilitating processing. Of course, according to actual needs, the water pipe 20 and the support pipe 30 can also be installed on the first side 11 of the base plate 10 by means of welding.

[0026] As shown in Figure 1 and Figure 2 , the base plate 10 includes a second side 12 opposite to the first side 11, the joint structure 21 is upward beyond the second side 12, and the second side 12 is provided with a layer of insulating glue by hot melt pressing, and the insulating glue provides insulation effect and directly contacts with the battery module.

[0027] As shown in Figure 1 and Figure 2 , the first side 11 of the base plate 10 is also provided with a plurality of square pads 40, and the square pads 40 are arranged on the sides of the water pipe 20 and the support pipe 30. The square pads 40 provide support and insulation. Preferably, the height of the square pad 40 is greater than the height of the water pipe 20, but is not limited thereto. The base plate 10 of the utility model can be made of an aluminum plate or a stainless steel plate, the water pipe 20 can be made of aluminum or stainless steel, and the support pipe 30 can be made of stainless steel.

[0028] The battery water cooling plate 100 of the utility model is applied to a battery cooling device.

[0029] The water pipe 20 is provided with two joint ends, forming two joint structures 21, one of which is used as a water inlet and the other is used as a water outlet. The refrigerant flows into the water pipe 20 from the water inlet and flows out from the water outlet, and absorbs the heat dissipated by the battery module in the process. The water inlet can also be provided with a throttling element, such as an expansion valve, a capillary tube, a throttling pipe, etc., to throttle the refrigerant. The throttled refrigerant rapidly expands and evaporates in the water pipe 20, taking away the heat of the battery module, thereby cooling the battery module. The water outlet can be connected to a compressor and a condenser. The compressor compresses the refrigerant flowing out of the water outlet to form a first state of the refrigerant. The condenser cools the first state of the refrigerant to form a second state of the refrigerant. The temperature of the second state of the refrigerant is lower than that of the first state of the refrigerant, but the pressure of the two is the same. The condensed refrigerant then reaches the throttling element, which throttles the refrigerant. The throttled refrigerant rapidly expands and evaporates in the water pipe 2, exchanges heat with the battery module, absorbs the heat of the battery module, and cools the battery module to the desired temperature, thereby achieving cooling. The heat-absorbed refrigerant returns to the compressor and continuously circulates.

[0030] Figure 1 and Figure 2In the above embodiment, the direction indicated by the arrow Z is the direction from top to bottom.

[0031] The above only discloses preferred embodiments of the present application and cannot be used to limit the scope of the present application. Any equivalent changes made according to the claims of the present application are within the scope of the present application.

Claims

1. A battery water-cooling plate, characterized in that: The device includes a substrate and a water pipe mounted on a first side of the substrate. At least a portion of the water pipe is bent. The water pipe has a connector end extending from one side of the substrate. The connector end is formed into a cylindrical connector structure by extrusion molding. The water pipe and the connector structure have flow channels for refrigerant flow. The outer wall of the connector structure has an installation groove for installing a sealing ring.

2. The battery water-cooling plate according to claim 1, characterized in that, The water pipe is a flat tubular component, and the substrate is a square plate with a straight surface.

3. The battery water-cooling plate according to claim 1, characterized in that, The connector structure is orthogonally arranged relative to the first side of the substrate.

4. The battery water-cooling plate according to claim 1, characterized in that, The water pipe is arranged in multiple meandering segments on the first side of the substrate.

5. The battery water-cooling plate according to claim 1, characterized in that, It also includes several support pipes, which are located beside the water pipes and / or inserted between the water pipes.

6. The battery water-cooling plate according to claim 5, characterized in that, The support tube is a flat tubular component, and the support tube is flush with the bottom surface of the water pipe.

7. The battery water-cooling plate according to claim 1, characterized in that, The substrate includes a second side opposite to the first side, the connector structure extends upward over the second side, and the second side is provided with a layer of insulating adhesive by hot-melt pressing.

8. The battery water-cooling plate according to claim 5, characterized in that, The water pipe and / or support pipe are installed on the first side of the substrate by adhesive or welding. The first side of the substrate is also equipped with a plurality of square pads, which are located beside the water pipe and / or the support pipe.

9. The battery water-cooling plate according to claim 1, characterized in that, It also includes a sealing ring installed in the mounting groove.

10. A battery cooling device, characterized in that, Includes the battery water cooling plate as described in any one of claims 1-9.

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