Cold plate male connector and battery pack cold plate

Abstract

The utility model provides a cold plate male connector which is connected to a water gap of a cold plate and comprises a through pipe, an adapter and a welding ring. A connecting part is formed in the circumferential direction of the through pipe; the adapter seat is a base capable of being connected with the connecting part, and an insertion groove allowing the tail end of the through pipe to be inserted therein is formed in the base; the slot is coaxially communicated with a through hole; and the welding ring is fixedly connected to the adapter seat, so that the adapter seat is connected with the cold plate, and the water gap is communicated with the through hole. The adapter with the welding ring is arranged at the water gap of the cold plate, the effect of conveniently fixing the adapter and the cold plate is achieved, after the adapter and the cold plate are fixed, the through pipe is inserted into the inserting groove, the through pipe and the base are fixed through the connecting part, and the effect of conveniently installing the male connector of the cold plate is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of cold plates for battery packs, in particular to a cold plate male connector, and the utility model also relates to a battery pack cold plate with the cold plate male connector. Background Technique

[0002] As an important energy storage component on an electric vehicle, a battery module is a key component of the electric vehicle, which directly affects the performance of the electric vehicle. During the use of the battery module, due to the certain internal resistance of the internal battery cells, a certain amount of heat will be generated during normal operation, causing the temperature inside the battery module to rise; when the heat accumulates excessively, it will affect the safety and life of the battery module; therefore, it is necessary to control the temperature of the battery module. The existing mainstream solutions mostly use a large-area battery pack cold plate to cool the battery module, that is, a liquid coolant is introduced into the battery pack cold plate to enable the battery module to exchange heat with the battery pack cold plate.

[0003] In the related art, when a liquid cooling pipeline is connected to a battery pack cold plate to form a liquid cooling loop, it needs to be connected to a VDA anti-rotation cold plate male connector respectively connected to the liquid inlet and outlet of the battery pack cold plate. However, due to the limited space of the battery pack cold plate in the battery pack, it is difficult to install the cold plate male connector. Content of the Utility Model

[0004] In view of this, the utility model aims to propose a cold plate male connector to facilitate the installation of the cold plate male connector.

[0005] To achieve the above object, the technical solution of the utility model is realized as follows:

[0006] A cold plate male connector is connected to the water port of the cold plate, and is characterized in that it includes:

[0007] A through pipe, on the circumferential direction of which a connecting portion is formed;

[0008] An adapter seat, the adapter seat is a base that can be connected to the connecting portion, and a slot for inserting the end of the through pipe is opened on the base; the slot is coaxially communicated with a through hole;

[0009] A welding ring is fixedly connected to the adapter seat to connect the adapter seat to the cold plate and communicate the water port with the through hole.

[0010] Further, the through pipe is an injection molded through pipe with a VDA anti-rotation water port at the head end.

[0011] Further, a sealing ring is sleeved on the circumferential direction of the through pipe, and the sealing ring is tightly inserted into the slot.

[0012] Further, a receiving groove for receiving the sealing ring is opened on the circumferential direction of the through pipe.

[0013] Furthermore, the connecting portion includes a set of plates arranged around the through pipe and abutting against the base, and fasteners connecting the plates and the base.

[0014] Furthermore, the fastener is a bolt, and a wire thread sleeve adapted to the fastener is pre-embedded in the base.

[0015] Furthermore, the fastener is a bolt, and a bushing is provided inside the bolt and is sleeved outside the bolt.

[0016] Furthermore, a protective bracket is connected to the base to protect the back side of the through-pipe anti-rotation water outlet.

[0017] Furthermore, the protective bracket is L-shaped, and a hole for making way and reducing weight is opened in the bottom plate of the protective bracket and extends to the side plate of the protective bracket; the hole for making way and reducing weight can accommodate the through pipe.

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] The cold plate male joint described in the utility model achieves the effect of facilitating the fixation of the adapter seat and the cold plate by arranging an adapter seat with a welding ring at the water outlet of the cold plate. After the adapter seat and the cold plate are fixed, the through pipe is inserted into the slot and the through pipe and the base are fixed using the connecting part, thereby achieving the purpose of facilitating the installation of the cold plate male joint.

[0020] By setting the through pipe as an injection molding through pipe with a VDA anti-rotation nozzle, the nozzle of injection molding does not need to be machined, which reduces the processing difficulty and efficiency of the through pipe and facilitates the control of the size of the through pipe and the nozzle.

[0021] A sealing ring is arranged between the through pipe and the groove wall of the slot, which increases the sealing performance of the connection between the through pipe and the adapter. When pressurized coolant is introduced into the cold plate through the cold plate male connector, the connection stability between the sealing ring and the adapter is improved.

[0022] By opening a receiving groove around the through pipe, when the through pipe and the sealing ring are inserted into the slot, the setting of the receiving groove ensures that when the sealing ring presses against the slot wall and continues to slide downward along the slot opening direction, it will not slide or displace relative to the through pipe.

[0023] By setting the connecting part as a plate body and a fastener, when connecting the through pipe to the base, it is only necessary to use the fastener to connect the plate body and the base, and then the plate body is pressed against the base to complete the limiting of the base and the plate body; there is no need to weld the through pipe to the cold plate by brazing, thereby achieving the effect of easy installation.

[0024] By pre-embedding the wire thread sleeve in the base, the setting of the wire thread sleeve ensures the assembly torque and strength when the fastener is connected to the base, so as to ensure the connection stability between the through pipe and the base.

[0025] By arranging the bushing in the plate body, the wear of the plate body when the fastener is inserted into the plate body is reduced. At the same time, when the cold plate vibrates, the arrangement of the bushing can reduce the transmission of vibration and noise.

[0026] By arranging a protective bracket on the side away from the anti-rotation water outlet of the through pipe, other external components are blocked, the possibility of external components colliding with the through pipe is reduced, and the effect of improving the stability of the through pipe is achieved.

[0027] By configuring the protective bracket to be an L-shaped protective bracket and opening a weight-reducing hole on the protective bracket that can accommodate a through pipe, fasteners can be used to connect the protective bracket to the base during assembly, thereby achieving an effect of facilitating assembly; at the same time, the provision of the weight-reducing hole reduces the consumables of the protective bracket and reduces the weight of the protective bracket, thereby facilitating weight reduction of the entire vehicle.

[0028] The utility model also provides a battery pack, which is equipped with the cold plate male connector as described above.

[0029] By arranging the cold plate male connector on the battery pack, the production of the cold plate male connector and the connection convenience between the cold plate male connector and the cold plate are facilitated. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0031] Figure 1 This is a schematic diagram showing the state of the cold plate male connector being assembled on the cold plate according to the embodiment of the utility model;

[0032] Figure 2 This is a schematic diagram showing the overall structure of the cold plate male connector in the embodiment of the utility model;

[0033] Figure 3 The embodiment of the utility model is an exploded view showing a cold plate male connector;

[0034] Figure 4 This is a schematic diagram showing some parts of the receiving tank in the embodiment of the utility model;

[0035] Figure 5 This is a schematic diagram showing the position of the water inlet on the cold plate according to an embodiment of the utility model;

[0036] Figure 6This is an exploded view of the display cold plate structure according to an embodiment of the present utility model.

[0037] Description of reference numerals:

[0038] 1. Through pipe;

[0039] 101. Accommodating groove;

[0040] 2. Connecting part;

[0041] 201. Plate body; 202. Fastener;

[0042] 3. Adapter base;

[0043] 301. Base; 302. Slot; 303. Through hole;

[0044] 4. Welding ring;

[0045] 5. Cold plate;

[0046] 501. Flow channel plate; 502. Support plate; 5021. Water inlet;

[0047] 6. Sealing ring;

[0048] 7. Wire insert;

[0049] 8. Bushing;

[0050] 9. Protection bracket;

[0051] 901. Relief and weight reduction hole; 902. Mounting hole. Detailed implementation manners

[0052] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments may be combined with each other.

[0053] In the description of the present utility model, it should be noted that if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. appear, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, if terms such as "first", "second", etc. appear, they are also only for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0054] In addition, in the description of the present utility model, unless otherwise clearly defined, the terms "installation", "connection", "connection", and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood in combination with specific situations.

[0055] The present utility model will be described in detail below with reference to the drawings and in conjunction with embodiments.

[0056] Embodiment 1

[0057] This embodiment relates to a cold plate male connector, which is convenient for installing the cold plate male connector on the cold plate 5 of the battery pack.

[0058] In terms of the overall structure, as Figures 1 to 6 shown, this cold plate male connector is connected to the water port 5021 of the cold plate 5, and includes a through pipe 1, a transition seat 3, and a welding ring 4; on the circumferential direction of the through pipe 1, a connecting portion 2 is formed; the transition seat 3 is a base 301 that can be connected to the connecting portion 2, and a slot 302 for inserting the end of the through pipe 1 is opened on the base 301; the slot 302 is coaxially communicated with a through hole 303; the welding ring 4 is fixedly connected to the transition seat 3 to connect the transition seat 3 with the cold plate 5 and communicate the water port 5021 with the through hole 303.

[0059] By providing the transition seat 3 with a welding ring 4 at the water port 5021 of the cold plate 5, the effect of facilitating the fixation of the transition seat 3 to the cold plate 5 is achieved. After fixing the transition seat 3 to the cold plate 5, the through pipe 1 is inserted into the slot 302 and the connecting portion 2 is used to fix the through pipe 1 to the base 301, achieving the purpose of facilitating the installation of the cold plate male connector.

[0060] Based on the above overall introduction, as Figures 1 to 6 shown, in this embodiment, the cold plate 5 is the liquid cooling plate for cooling the battery pack; the water port 5021 opened on the cold plate 5 includes the water inlet and the water outlet of the cold plate 5, and cold plate male connectors are connected to both the water inlet and the water outlet of the cold plate 5 to facilitate the circulation of the coolant in the cold plate 5, thereby achieving the effect of reducing the temperature inside the battery pack.

[0061] In the embodiments of the present application, the base 301 can be set to any shape. For example, in this embodiment, the base 301 is generally a rectangular block structure. A slot 302 is opened downward from the upper surface of the base 301, and a through hole 303 is coaxially opened. The aperture of the through hole 303 is smaller than that of the slot 302, and the through hole 303 penetrates the base 301. When the through pipe 1 is inserted into the slot 302, the through pipe 1 communicates with the through hole 303. The welding ring 4 is connected to the base 301, and the welding ring 4 is coaxial with the through hole 303. There are various ways to fixedly connect the adapter base 3 to the cold plate 5 using the welding ring 4. For example, the method of brazing provided in this embodiment can be used for connection. Or the adapter base 3 and the cold plate 5 can be connected by an adhesive method. When the brazing method is selected to connect the adapter base 3 and the cold plate 5, the adapter base 3 and the welding ring 4 are preferably made of aluminum material. For example, the adapter base 3 is made of AI3003, and the welding ring 4 is made of AI4047, etc.

[0062] On the basis that the cold plate 5 includes the through pipe 1 and the adapter base 3, in order to facilitate the production of the through pipe 1, the through pipe 1 is an injection molded through pipe 1 with a VDA anti-rotation water inlet 5021 at the head end. By setting the through pipe 1 as an injection molded through pipe 1 with a VDA anti-rotation water inlet 5021, the water inlet 5021 of the injection molding does not require machining, which reduces the processing difficulty and improves the efficiency of the through pipe 1. At the same time, it is convenient to control the dimensions of the through pipe 1 and the water inlet 5021.

[0063] For the through pipe 1, a material with a certain structural strength and pressure resistance can be selected during the injection molding process. For example, in this embodiment, PA66 is selected as the raw material. The injection molded through pipe 1 solves the problems of large processing difficulty, difficult dimension control, low efficiency and high cost when the traditional cold plate male connector with an anti-rotation water inlet 5021 is machined. And when used in cooperation with the adapter base 3 in the present application, the strength of the cold plate male connector is improved.

[0064] To improve the sealing performance of the connection between the through pipe 1 and the adapter base 3, as Figures 3 to 4 shown, a sealing ring 6 is sleeved around the circumference of the through pipe 1, and the sealing ring 6 is tightly inserted into the slot 302. By arranging the sealing ring 6 between the through pipe 1 and the slot wall of the slot 302, the connection sealing performance between the through pipe 1 and the adapter base 3 is increased. When pressurized coolant is introduced into the cold plate 5 through the cold plate male connector, the connection stability between the sealing ring 6 and the adapter base 3 is improved.

[0065] The sealing ring 6 is made of a material with a certain elastic deformation ability. For example, in this embodiment, rubber can be selected as the raw material. In order to further improve the sealing performance of the through pipe 1 and the adapter 3, multiple sealing rings 6 can be provided, and the multiple sealing rings 6 are distributed along the length direction of the through pipe 1. The cooling liquid flowing into the slot 302 is blocked. For example, in this embodiment, two sealing rings are provided. In order to make the sealing ring 6 expand and plug in the slot 302, the outer diameter of the sealing ring 6 is larger than the opening diameter of the slot 302. In this way, when the sealing ring 6 is plugged in the slot 302, the slot 302 is elastically deformed and then expanded in the slot 302, so as to achieve the effect of improving the sealing performance of the connection between the through pipe 1 and the adapter 3.

[0066] On the basis of improving the sealing performance of the connection between the through pipe 1 and the adapter 3, in order to facilitate the sealing ring 6 to be inserted into the slot 302 together with the through pipe 1, a receiving groove 101 for accommodating the sealing ring 6 is opened in the circumferential direction of the through pipe 1. By opening the receiving groove 101 in the circumferential direction of the through pipe 1, when the through pipe 1 and the sealing ring 6 are inserted into the slot 302, the setting of the receiving groove 101 ensures that when the sealing ring 6 presses against the groove wall of the slot 302 and continues to slide downward along the opening direction of the slot 302, it will not slide or displace relative to the through pipe 1.

[0067] Based on the purpose of using the connecting part 2 to connect the through pipe 1 and the adapter 3, as Figures 1 to 4 As shown, in order to improve the convenience of cold plate male joint assembly, the connecting part 2 includes a set of plate bodies 201 arranged around the through pipe 1 and abutting against the base 301, and fasteners 202 connecting the plate bodies 201 and the base 301. The fasteners 202 are bolts, and a wire thread sleeve 7 adapted to the fasteners 202 is pre-embedded in the base 301.

[0068] By setting the connecting part 2 as the plate body 201 and the fastener 202, when connecting the through pipe 1 to the base 301, it is only necessary to use the fastener 202 to connect the plate body 201 to the base 301, and then the plate body 201 is pressed against the base 301 to complete the positioning of the base 301 and the plate body 201; there is no need to weld the through pipe 1 to the cold plate 5 by brazing, so as to achieve the effect of easy installation. By pre-embedding the wire screw sleeve 7 in the base 301, the setting of the wire screw sleeve 7 ensures the assembly torque and strength when the fastener 202 is used to connect to the base 301, so as to ensure the connection stability of the through pipe 1 and the base 301.

[0069] On the basis that the fastener 202 is a bolt, in order to reduce the wear of the plate body 201 and the adapter 3 during and after assembly, a bushing 8 sleeved on the bolt is provided in the plate body 201. By providing the bushing 8 in the plate body 201, the wear of the plate body 201 when the fastener 202 is inserted in the plate body 201 is reduced, and at the same time, when the cold plate 5 vibrates, the provision of the bushing 8 can reduce the transmission of vibration and noise.

[0070] In order to protect the cold plate male joint assembled on the cold plate 5, a protective bracket 9 is connected to the base 301 on the back side of the anti-rotation water outlet 5021 of the protective through pipe 1. The protective bracket 9 is L-shaped, and a shaving hole 901 extending from the bottom plate of the protective bracket 9 to the side plate of the protective bracket 9 is opened; the shaving hole 901 can accommodate the through pipe 1.

[0071] By setting a protective bracket 9 on the side away from the anti-rotation water outlet 5021 of the through pipe 1, other external components are blocked, the possibility of external components contacting the through pipe 1 is reduced, and the stability of the through pipe 1 is improved. By setting the protective bracket 9 as an L-shaped protective bracket 9, and opening a weight-reducing hole 901 on the protective bracket 9 to accommodate the through pipe 1, the protective bracket 9 can be connected to the base 301 with a fastener 202 during assembly, thereby achieving the effect of facilitating assembly; at the same time, the setting of the weight-reducing hole 901 reduces the consumables of the protective bracket 9 and reduces the weight of the protective bracket 9, so as to reduce the weight of the entire vehicle.

[0072] A mounting hole 902 is provided at the top of the protective bracket 9. Two mounting holes 902 are provided along the width of the protective bracket 9. The mounting holes 902 are used to connect with the lower shell of the battery pack. While protecting the through pipe 1, the stability of the connection between the cold plate 5 and the lower shell is improved.

[0073] When the cold plate male connector of the embodiment of the present application is used, the adapter seat 3 is welded to the water inlet 5021 of the cold plate 5 by brazing using the welding ring 4, and the through pipe 1 with the VDA anti-rotation water inlet 5021 is injection molded by injection molding, the sealing ring 6 is sleeved in the receiving groove 101, and the through pipe 1 is inserted into the slot 302, and then the protective bracket 9 is placed above the plate body 201, and the through pipe 1 is fixed to the adapter seat 3 using the fastener 202, so as to complete the assembly of the cold plate male connector. By providing the adapter seat 3 with the welding ring 4 at the water inlet 5021 of the cold plate 5, the effect of facilitating the fixing of the adapter seat 3 and the cold plate 5 is achieved. After the adapter seat 3 and the cold plate 5 are fixed, the through pipe 1 is inserted into the slot 302 and the through pipe 1 is fixed to the base 301 using the connecting part 2, so as to achieve the purpose of facilitating the installation of the cold plate male connector.

[0074] Embodiment 2

[0075] The present application also provides a battery pack cold plate, such as Figures 5 to 6 As shown, the cold plate 5 includes a flow channel plate 501 having a flow channel and a support plate 502 fixed above the flow channel plate 501 to form a cooling medium that can flow. The water inlet 5021 of the battery pack cold plate 5 is opened on the support plate 502. The battery pack is equipped with the cold plate male connector as described above, and the cold plate male connector is installed at the water inlet 5021.

[0076] By providing the above-mentioned cold plate male connector on the battery pack, it facilitates the production of the cold plate male connector and the convenience of connecting the cold plate male connector to the cold plate 5.

[0077] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A cold plate male connector is connected to the water inlet / outlet of the cold plate, and is characterized in that include: A through pipe having a connection portion formed in its circumference; The adapter seat is a base that can be connected to the connecting part, and the base is provided with a slot for the end of the through pipe to be inserted; the slot is coaxially connected with a through hole; A welding ring is fixedly connected to the adapter seat so as to connect the adapter seat with the cold plate and to communicate the water port with the through hole.

2. The cold plate male connector according to claim 1, characterized in that: The through pipe is an injection-molded through pipe with a VDA anti-rotation water outlet at the head end.

3. The cold plate male connector according to claim 1, characterized in that: The through pipe is circumferentially sleeved with a sealing ring, which is expanded and inserted into the slot.

4. The cold plate male connector according to claim 3, characterized in that: A receiving groove for receiving the sealing ring is provided in the circumferential direction of the through pipe.

5. The cold plate male connector according to claim 1, characterized in that: The connecting part comprises a set of plates arranged in the circumferential direction of the through pipe and abutting against the base, and a fastener connecting the plate and the base.

6. The cold plate male connector according to claim 5, characterized in that: The fastener is a bolt, and a wire thread sleeve adapted to the fastener is pre-embedded in the base.

7. The cold plate male connector according to claim 5, characterized in that: The fastener is a bolt, and a bushing is arranged inside the plate body and sleeved outside the bolt.

8. The cold plate male connector according to claim 1, characterized in that: A protective bracket is connected to the base to protect the back side of the through pipe anti-rotation water outlet.

9. The cold plate male connector according to claim 8, characterized in that: The protective bracket is L-shaped, and a clearance and weight reduction hole extending to the side plate of the protective bracket is opened on the bottom plate of the protective bracket; the clearance and weight reduction hole can accommodate the through pipe.

10. A battery pack cold plate, characterized in that, Equipped with a cold plate male connector as claimed in any one of claims 1 to 9.

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