A connector assembly and a battery assembly

Abstract

The application discloses a connector assembly and a battery assembly. The connector assembly comprises a base, a connector and a circuit board. The connector protrudes from the base so that the connector can extend out of the base to electrically connect with an external connector fitting. The circuit board is fixed in the base and electrically connected with the connector to transmit electrical signals with the connector. The connector assembly has the advantages of simple structure, small space occupation and few failure points.

Description

[0001] This application claims priority to Chinese patent application filed on September 12, 2025, with application number 202521975135X and entitled "A Connector Assembly and a Battery Assembly", the contents of which are to be understood as incorporated herein by reference. Technical Field

[0002] This application relates to the field of connector equipment technology, and more specifically, to a connector assembly and a battery assembly. Background Technology

[0003] Currently, electric vehicles are equipped with multiple sensor modules to collect and detect the operating status parameters of the battery pack. The electrical signals collected by these multiple sensor modules are transmitted to the upper-level sensor module controller through numerous standard connectors. The sensor module controller monitors the status of the battery pack based on the detection signals transmitted by the numerous standard connectors.

[0004] The existing technology uses numerous standard connectors for electrical signal transmission between sensor modules and sensor module controllers, which has the problems of large space occupation by numerous standard connectors, a large number of failure points, and complex structure. Utility Model Content

[0005] This application provides a connector assembly and a battery assembly. The connector assembly includes a base, a connector, and a circuit board. The circuit board of this application can receive a large number of external electrical signals and transmit the large number of electrical signals to the corresponding external mating parts through the connector. The connector assembly of this application has the advantages of simple structure, few parts, small space occupation, and few failure points.

[0006] The technical solution of this application embodiment is as follows: A connector assembly, comprising: Base A connector, protruding from the base, such that the connector extends from the base to electrically connect with an external mating component; and The circuit board is fixed in the base and electrically connected to the connector to transmit electrical signals with the connector.

[0007] A battery assembly includes: a bottom protective plate, a water-cooling plate, and a connector assembly as described in the above embodiments; The bottom protective plate and the water-cooling plate form a sandwich, and the base of the connector assembly is sandwiched in the sandwich between the bottom protective plate and the water-cooling plate; The connector assembly's connectors pass through the water-cooled plate and are electrically connected to the mating parts outside the interlayer.

[0008] The technical advantages of the connector assembly in this application embodiment are as follows: In existing technologies, numerous standard connectors are required to transmit a large number of electrical signals collected by various sensors to the upper-level controller. This approach suffers from problems such as large space occupation, complex structure, and numerous potential failure points due to the numerous connectors. The connector assembly provided in this application includes a base, connectors, and a circuit board. The circuit board receives electrical signals collected and detected by numerous external devices and transmits them to external mating components through connectors electrically connected to the circuit board. By simply connecting the mating components to the upper-level controller, the connector assembly of this application can transmit a large number of electrical signals collected by external devices (such as sensors) to the upper-level controller. The connector assembly provided in this application only requires a few components such as a base, connectors, and a circuit board to transmit a large number of electrical signals to external mating components. Therefore, compared to the existing technology that uses numerous standard connectors to transmit a large number of electrical signals to the upper-level controller, the connector assembly of this application has the advantages of fewer parts, simpler structure, smaller space occupation, and fewer potential failure points.

[0009] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the description and the accompanying drawings. Attached Figure Description

[0010] The accompanying drawings are used to provide a further understanding of the technical solutions of this application and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of this application and do not constitute a limitation on the technical solutions of this application.

[0011] Figure 1 This is an exploded structural diagram of a connector assembly according to an embodiment of this application; Figure 2 This is a schematic diagram of the assembled structure of the base and connector according to an embodiment of this application. Figure 1 ; Figure 3 This is a schematic diagram of the assembled structure of the base and connector according to an embodiment of this application. Figure 2 ; Figure 4 This is a schematic diagram of the assembled structure of the base, connector, circuit board and wire harness according to an embodiment of this application; Figure 5 This is a schematic diagram of the connector assembly after it has been installed onto the bottom cover and the water-cooling plate according to an embodiment of this application; Figure 6 for Figure 5 A schematic diagram of its decomposed structure. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be arbitrarily combined with each other.

[0013] Please refer to the instruction manual appendix. Figures 1 to 6 The diagram shows a structural schematic of a connector assembly according to an exemplary embodiment of this application. Figure 4 , Figure 5 and Figure 6 As shown, this application embodiment provides a connector assembly, including a base 1, a connector 2, and a circuit board 3. The connector 2 protrudes from the base 1 so that the connector 2 can extend out of the base 1 and electrically connect to an external mating part (not shown in the figure). The circuit board 3 is fixed in the base 1 and electrically connected to the connector 2 to transmit electrical signals with the connector 2.

[0014] In existing technologies, numerous standard connectors are required to transmit a large number of electrical signals collected by a large number of sensors to the upper-level controller. This approach has the problems of large space occupation, complex structure, and a large number of failure points due to the numerous connectors.

[0015] The connector assembly provided in this application embodiment includes a base 1, a connector 2, and a circuit board 3. The circuit board 3 can receive a large number of electrical signals collected by numerous external sensors. The connector 2, electrically connected to the circuit board 3, can transmit the large number of electrical signals transmitted to the circuit board 3 to an external mating component. If the mating component is electrically connected to an upper-level controller, then the connector assembly of this application can transmit a large number of external electrical signals to the upper-level controller. The connector assembly provided in this application embodiment only requires a few components, such as the base 1, connector 2, and circuit board 3, to transmit a large number of electrical signals to an external mating component. Therefore, compared with the prior art method of using numerous standard connectors to transmit a large number of electrical signals to an upper-level controller, the connector assembly of this application has the advantages of fewer parts, simpler structure, smaller footprint, and fewer failure points. In one exemplary embodiment, such as Figure 5 and Figure 6 As shown, the base 1 is adapted to be sandwiched in the interlayer 4 between two parts, and the connector 2 is configured to pass through the parts forming the interlayer 4 and electrically connect to the connector outside the interlayer 4.

[0016] Specifically, Figure 6 The structure located within the dashed box is a connector assembly according to an embodiment of this application. Figure 6 The water-cooled plate 9 and the bottom protective plate 10, located above and below the dashed frame respectively, are a specific embodiment of two parts used to form the sandwich layer 4. For example... Figure 6As shown, connector 2 and base 1 are connected together, with connector 2 protruding from base 1. Figure 5 As shown, connector 2 passes through the water-cooled plate 9, the component used to form the interlayer 4, and extends to the outside of the interlayer 4. In this way, connector 2 can be electrically connected to the mating parts outside the interlayer 4 for transmitting electrical signals. Figure 4 As shown, circuit board 3 is mounted on base 1 and electrically connected to connector 2. Circuit board 3 can receive a large number of external electrical signals through wiring harnesses and other electrical components. These signals are then transmitted to the external connector assembly of interlayer 4 via connector 2, thus achieving the purpose of transmitting a large number of electrical signals to the external connector assembly of interlayer 4 through the connector assembly of this application. The connector assembly of this embodiment, by using fewer components such as base 1, connector 2, and circuit board 3, can achieve the function of transmitting a large number of electrical signals collected by sensors to the external connector assembly and upper-level controller of interlayer 4. This connector assembly has the advantages of simple structure, fewer parts, and fewer failure points. Furthermore, this embodiment installs components such as base 1 and circuit board 3 within the narrow interlayer 4 between two parts, thus minimizing the space occupied by the connector assembly. The height of the connector assembly in this application is also small, resulting in space-saving advantages.

[0017] Taking the application of the connector assembly of this application to the battery pack of an electric vehicle as an example, currently, electric vehicles are equipped with multiple sensor modules to collect and detect the operating status parameters of the battery pack. The electrical signals collected by these multiple sensor modules are transmitted to the upper-level sensor module controller through numerous standard connectors. The current practice of using numerous standard connectors to transmit electrical signals between multiple sensors and the controller has the problems of a large number of standard connectors, complex structure, large space occupation, and a large number of failure points. However, the connector assembly of this application embodiment can be installed in the narrow space 4 between the bottom protective plate 10 and the water-cooling plate 9 of the battery pack. The connector 2 is electrically connected to the corresponding mating parts in the battery compartment, the mating parts are electrically connected to the sensor module controller, and the circuit board 3 is electrically connected to the numerous sensor modules. This allows the electrical signals collected and detected by the numerous sensor modules to be transmitted to the sensor module controller through the connector assembly of this application. Applying the connector assembly of this application to the signal transmission between the sensor modules and the sensor module controller of the battery pack has the advantages of small space occupation, especially small height, simple structure, and less susceptibility to failure.

[0018] It is understood that the connector assembly of this application embodiment can be installed not only in the interlayer 4 between the water-cooling plate 9 and the bottom guard plate 10 of the battery assembly of an electric vehicle, but also in the interlayer between any other two parts, and can serve to receive and transmit a large number of electrical signals, with a simple structure and small space occupation.

[0019] In one exemplary embodiment, such as Figure 2 and Figure 3 As shown, the base 1 includes a first end face 11 and a second end face 12 disposed opposite to each other along the thickness direction of the base 1. A receiving cavity 111 is provided on one side of the first end face 11. Figure 4 The circuit board 3 shown is fixed inside the receiving cavity 111. The connector 2 protrudes from the second end face 12.

[0020] Specifically, Figure 2 The arrow in the image points in the direction of the thickness of base 1. Figure 2 The diagram shows a structural schematic of one side of the second end face 12 of the base 1. Figure 3 A structural schematic diagram of one side of the first end face 11 of the base 1 is shown. Figure 4 This diagram shows the structure after the circuit board 3 is mounted to the receiving cavity 111 on one side of the first end face 11 of the base 1. Figure 3 and Figure 4 As shown, connector 2 penetrates the base 1 along its thickness direction. One end of connector 2 can be electrically connected to the circuit board 3 within the receiving cavity 111 located on the first end face 11, while the other end of connector 2 protrudes from the second end face 12 for electrical connection to an external connector. In this way, the circuit board 3 can transmit electrical signals to the external connector via connector 2.

[0021] In one exemplary embodiment, such as Figure 1 and Figure 4 As shown, the connector assembly of this application also includes a wire harness 5, one end of which is electrically connected to the circuit board 3, and the other end of which is electrically connected to an external device (not shown in the figure).

[0022] The side wall of the receiving cavity 111 is provided with a through hole 112. One end of the wire harness 5, which is electrically connected to the circuit board 3, passes through the through hole 112 and enters the receiving cavity 111 to be electrically connected to the circuit board 3. Specifically, the wire harness 5 is used for signals between external devices and the circuit board 3. In this way, the electrical signals of external devices can be transmitted to the circuit board 3 through the wire harness 5, and then transmitted to the external connector through the connector 2.

[0023] For example, when the connector assembly of this application is applied to the battery assembly of an electric vehicle, the external device is set as a sensor module, and the mating parts are electrically connected to the sensor module controller. The connector assembly of this application can be used for signal transmission between the sensor module and the sensor module controller of the battery assembly of an electric vehicle.

[0024] In one exemplary embodiment, such as Figure 1 and Figure 4As shown, the through hole 112 includes a first through hole 112-1 and a second through hole 112-2, which are located on two opposite side walls of the receiving cavity 111, respectively; the wire harness 5 includes a first wire harness 51 and a second wire harness 52, which pass through the first through hole 112-1 and are electrically connected to the first end 31 of the circuit board 3, and the second wire harness 52 passes through the second through hole 112-2 and is electrically connected to the second end 32 of the circuit board 3.

[0025] Specifically, a first wiring harness 51 and a second wiring harness 52 are provided to facilitate the transmission of electrical signals between external devices and the circuit board 3.

[0026] The first through hole 112-1 and the second through hole 112-2 are located on two opposite side walls of the receiving cavity 111, respectively. The first wire harness 51 is electrically connected to the first end 31 of the circuit board 3, and the second wire harness 52 is electrically connected to the second end 32 of the circuit board 3. The structure is compact, reasonable and neat.

[0027] In one exemplary embodiment, such as Figure 1 and Figure 6 As shown, the connector assembly of this application further includes: a waterproof sealant layer 6 and a double-sided adhesive layer (not shown in the figure), wherein the waterproof sealant layer 6 is configured to encapsulate the circuit board 3 within the receiving cavity 111.

[0028] Double-sided adhesive layer is applied to waterproof sealant layer 6.

[0029] Specifically, after the circuit board 3 is installed into the receiving cavity 111, or after the circuit board 3 is installed into the receiving cavity 111 and the wire harness 5 passes through the through hole 112 and is electrically connected to the circuit board 3, the operator injects sealant into the receiving cavity 111 to form a waterproof sealant layer 6, so as to isolate the circuit board 3 from the external environment of the receiving cavity 111, to prevent the circuit board 3 from being damaged by external water, and to firmly fix the circuit board 3 in the receiving cavity 111.

[0030] A double-sided adhesive layer is adhered to the waterproof sealant layer 6, allowing other components to be attached to the side of the double-sided adhesive layer facing away from the circuit board 3. In other words, other components can be attached to the mounting circuit board 3 side of the connector assembly in this application. Figure 6 In the illustrated embodiment, the bottom cover 10 can be adhered to the waterproof sealant layer 6 using a double-sided adhesive layer. Both the waterproof sealant layer 6 and the double-sided adhesive layer prevent external water from entering the receiving cavity 111 through the gap between the bottom cover 10 and the first end face 11 of the base 1, thereby preventing corrosion and damage to the circuit board 3 installed in the receiving cavity 111.

[0031] In one exemplary embodiment, such as Figure 1 , Figure 3 and Figure 4As shown, a positioning part 113 is provided in the receiving cavity 111, and a positioning mating part 33 is provided on the circuit board 3. The positioning part 113 and the positioning mating part 33 are arranged opposite to each other to facilitate the positioning of the circuit board 3 in the receiving cavity 111.

[0032] Specifically, when installing the circuit board 3, the positioning part 113 of the receiving cavity 111 and the positioning mating part 33 of the circuit board 3 can be installed and mated to make the circuit board 3 accurately positioned in the receiving cavity 111.

[0033] exist Figure 1 and Figure 3 In the illustrated embodiment, the positioning portion 113 of the receiving cavity 111 consists of two spaced-apart protrusions, and the positioning mating portion 33 on the circuit board 3 consists of two spaced-apart through holes. By inserting the two protrusions into the two through holes respectively, the circuit board 3 can be positioned and mated within the receiving cavity 111. It is understood that the positioning portion 113 and the positioning mating portion 33 of this application can also be configured in other structural types, all of which are within the protection scope of this application.

[0034] In one exemplary embodiment, such as Figure 2 and Figure 3 As shown, the connector 2 includes a PIN pin 21 and a housing 22 that encloses the PIN pin. The PIN pin 21 passes through the base 1 along the thickness direction and enters the receiving cavity 111 to be electrically connected to the circuit board 3.

[0035] like Figure 1 and Figure 2 As shown, the second end face 12 is provided with an annular sealing groove 121, which surrounds the connector 2. The connector assembly also includes a first seal 7, which is installed in the sealing groove 121.

[0036] Specifically, an annular sealing groove 121 is provided on the second end face 12, and a sealing element 7 is installed in the sealing groove 121, so that the second end face 12 of the base 1 and the parts on one side of the second end face 12 of the connector assembly (e.g. Figure 6 A sealed connection is formed between the water-cooled plates 9 and the connector assembly, preventing external water from passing through the parts (e.g., the second end face 12 side of the connector assembly) on one side. Figure 6 The gap between the water-cooled plate 9 and the second end face 12 allows water to enter the interior of the connector assembly and corrode and damage the electronic components.

[0037] In one exemplary embodiment, such as Figure 5 and Figure 6 As shown, the second end face 12 is provided with a connection hole 122, which is used for the base 1 to be fixedly connected to a part forming a sandwich 4 near the second end face 12 by fasteners 8.

[0038] The connection hole 122 is located between the sealing groove 121 and the connector 2, and the connection hole 122 is a blind hole.

[0039] Specifically, such as Figure 6 In the illustrated embodiment, the water-cooled plate 9 and a portion of the second end face 12 of the base 1 are fixedly connected together by fasteners 8. When the connector assembly of this application is installed onto the water-cooled plate 9, the sealing connection method using only the interference fit between the first seal 7, the water-cooled plate 9, and the second end face 12 of the base 1 may result in sealing connection failure. In this embodiment, fasteners 8 are used to tightly and firmly connect the water-cooled plate 9, the first seal 7, and the second end face 12 of the base 1 together, which can effectively ensure the sealing connection between the water-cooled plate 9 and the second end face 12 of the base 1.

[0040] The connection hole 122 is located between the sealing groove 121 and the connector 2, and it is a blind hole. Both the connector 2 and the connection hole 122 are surrounded by the sealing groove 121 and the first seal 7, preventing external water from entering the annular space of the first seal 7 through the gap between the second end face 12 and the water-cooling plate 9, thus preventing corrosion and damage to the connector 2 and the connection hole 122. Since the connection hole 122 is a blind hole, the receiving cavity 111 is not connected to the connection hole 122, which facilitates the sealing and waterproof design of the circuit board 3 installed in the receiving cavity 111, preventing external water from entering the battery compartment through the connection hole 122. Therefore, the above structural design ensures the waterproof requirements of the connector assembly and prevents water corrosion and damage to the internal electronic components of the connector assembly.

[0041] In one exemplary embodiment, such as Figure 2 As shown, the blind hole includes a first blind hole 122-1 and a second blind hole 122-2, which are located on both sides of the connector 2.

[0042] Specifically, a first blind hole 122-1 and a second blind hole 122-2 are respectively provided on both sides of the connector 2. The parts (e.g., Figure 6 The water-cooled plate 9) is fixed to the second end face 12 of the base 1, so that the connection is more secure and stable after the parts are installed on the second end face 12 of the base 1.

[0043] In one exemplary embodiment, the base 1 and the housing 22 are integrally injection molded.

[0044] Specifically, the base 1 and the outer shell 22 are integrally injection molded, which simplifies the manufacturing process of the connector assembly. At the same time, the connection between the base 1 and the connector 2 is a sealed connection, which can prevent external water from entering the battery compartment through the connector 2.

[0045] The assembly process of the connector assembly according to one embodiment of this application is as follows: First, the base 1 and the connector 2 are integrally injection molded; then, the circuit board 3 is installed into the receiving cavity 111 of the first end face 11 of the base 1; then, the first wire harness 51 passes through the first through hole 112-1 of the side wall of the receiving cavity 111 and is electrically connected to the first end 31 of the circuit board 3; the second wire harness 52 passes through the second through hole 112-2 of the side wall of the receiving cavity 111 and is electrically connected to the second end 32 of the circuit board 3; then, a waterproof sealant layer 6 is injected into the receiving cavity 111; then, a double-sided adhesive layer is pasted on the waterproof sealant layer 6; then, the first sealant 7 is installed in the sealing groove 121. This completes the assembly process of the connector assembly.

[0046] The process of installing the connector assembly into the interlayer 4 between the two parts is as follows: the connector assembly is attached to one of the parts located on the first end face 11 using double-sided adhesive (e.g., ...). Figure 6 On the midsole support plate 10); then the portion of the connector 2 protruding from one side of the second end face 12 passes through another part located on one side of the second end face 12 (e.g., Figure 6 The water-cooled plate 9 extends outward from the interlayer 4, forming an interference fit seal between the first seal 7 and the water-cooled plate 9. Furthermore, the second end face 12 of the base 1 is stably and firmly connected to the water-cooled plate 9 by fasteners 8, which strengthens the sealing connection between the first seal 7, the water-cooled plate 9, and the second end face 12 of the base 1.

[0047] This application provides a battery assembly, such as... Figure 5 and Figure 6 As shown, it includes a bottom protective plate 10, a water-cooled plate 9, and a connector assembly as described in any of the exemplary embodiments above.

[0048] The bottom protective plate 10 and the water-cooled plate 9 form a sandwich 4, and the base 1 of the connector assembly is sandwiched in the sandwich 4 between the bottom protective plate 10 and the water-cooled plate 9.

[0049] like Figure 5 As shown, the connector 2 of the connector assembly passes through the water-cooled plate 9 and is electrically connected to the mating parts outside the interlayer 4. Specifically, the battery assembly provided in this application includes the connector assembly described in any of the exemplary embodiments above, and therefore has the structural features and advantages of the connector assembly described in any of the exemplary embodiments above, which will not be repeated here.

[0050] In one exemplary embodiment, such as Figure 5 and Figure 6As shown, the water-cooled plate 9 is provided with a third through hole 91 and a fourth through hole 92. The connector 2 is configured to pass through the third through hole 91. The fourth through hole 92 is correspondingly provided with the connecting hole 122 so that the fastener 8 can pass through the fourth through hole 92 and enter the connecting hole 122 to fix the water-cooled plate 9 to the second end face 12.

[0051] The first end face 11 is configured to be connected to the bottom protective plate 10, and the first end face 11 and the bottom protective plate 10 are sealed and bonded together.

[0052] In the description of this application, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "opposite", "four corners", "periphery", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the structure referred to has a specific orientation, or is constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0053] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the terms "connection," "direct connection," "indirect connection," "fixed connection," "installation," and "assembly" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. The terms "installation," "connection," and "fixed connection" can refer to a direct connection or an indirect connection through an intermediate medium, or they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0054] Although the embodiments disclosed in this application are as described above, the content described is merely for the purpose of understanding this application and is not intended to limit this application. Any person skilled in the art to which this application pertains may make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in this application, but the scope of patent protection of this application shall still be defined by the appended claims.

Claims

1. A connector assembly, characterized in that, include: Base; A connector protrudes from the base so that the connector can extend from the base to electrically connect with an external mating component; and The circuit board is fixed in the base and electrically connected to the connector to transmit electrical signals with the connector; The base is adapted to be sandwiched in a layer between two parts, and the connector is configured to pass through the parts forming the layer and electrically connect to a mating part outside the layer.

2. The connector assembly according to claim 1, characterized in that, The base includes a first end face and a second end face that are disposed opposite to each other along the thickness direction of the base. A receiving cavity is provided on one side of the first end face, and the circuit board is fixed in the receiving cavity. The connector protrudes from the second end face.

3. The connector assembly according to claim 2, characterized in that, Also includes: A wire harness, one end of which is electrically connected to the circuit board, and the other end of which is electrically connected to an external device; The side wall of the receiving cavity is provided with a through hole, and one end of the wire harness that is electrically connected to the circuit board passes through the through hole into the receiving cavity and is electrically connected to the circuit board.

4. The connector assembly according to claim 3, characterized in that, The through hole includes a first through hole and a second through hole, which are located on two opposite side walls of the receiving cavity, respectively; the wiring harness includes a first wiring harness and a second wiring harness, which passes through the first through hole and is electrically connected to a first end of the circuit board, and the second wiring harness passes through the second through hole and is electrically connected to a second end of the circuit board.

5. The connector assembly according to any one of claims 2 to 4, characterized in that, Also includes: A waterproof sealant layer and a double-sided adhesive layer, wherein the waterproof sealant layer is configured to encapsulate the circuit board within the receiving cavity; The double-sided adhesive layer is adhered to the waterproof sealant layer.

6. The connector assembly according to any one of claims 2 to 4, characterized in that, The connector includes a pin and a housing that encloses the pin. The pin passes through the base along the thickness direction of the base and enters the receiving cavity to electrically connect with the circuit board. The second end face is provided with an annular sealing groove, which surrounds the connector; The connector assembly further includes a first seal, which is installed into the sealing groove.

7. The connector assembly according to claim 6, characterized in that, The second end face is provided with a connection hole, which is used for the base to be connected to a part forming the interlayer near the second end face by fasteners; The connection hole is located between the sealing groove and the connector, and the connection hole is a blind hole.

8. The connector assembly according to claim 6, characterized in that, The base and the outer shell are integrally injection molded.

9. A battery assembly, characterized in that, include: The bottom protective plate, the water-cooling plate, and the connector assembly as described in any one of claims 1 to 8; The bottom protective plate and the water-cooling plate form a sandwich, and the base of the connector assembly is sandwiched in the sandwich between the bottom protective plate and the water-cooling plate; The connector assembly's connectors pass through the water-cooled plate and are electrically connected to the mating parts outside the interlayer.

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