A connection device and a vehicle

Abstract

The application provides a connecting device and a vehicle, relates to the technical field of vehicle heating, and the vehicle comprises a high-voltage power supply and at least one heating module, the connecting device comprises a connecting component and a busbar component, the busbar component is configured to be fixed in the same shell as the heating module, the busbar component comprises an insulating shell and a conductive assembly; the insulating shell is provided with a first containing cavity, one side of the busbar component facing the connecting component is provided with a first opening in communication with the containing cavity; the conductive assembly is arranged in the first containing cavity, a part of the conductive assembly protruding out of the first opening extends into the connecting component and is used for electrically connecting with the high-voltage power supply, and another part of the conductive assembly protruding out of the first containing cavity is used for electrically connecting with the heating module. Through integrated design, the connecting component and the busbar component are integrated, the space utilization is improved, the architecture is simplified, the number of parts is effectively reduced, the system complexity, the overall quality and the cost are reduced, and the cost advantage is achieved.

Description

Technical Field

[0001] This application relates to the field of vehicle heating technology, and more specifically, to a connection device and a vehicle. Background Technology

[0002] Vehicle battery packs have high temperature requirements during operation. Therefore, vehicles typically include heaters to regulate the battery pack temperature and ensure it operates within a suitable temperature range. The heater usually contains a heating module, a bus, and connectors. The heating module is often used in conjunction with the bus and connected to the vehicle via connectors to transmit power to the heating module through the bus, thus achieving the functions of battery heating and vehicle interior heating. The heater also typically includes other components, such as a housing, on which the heating module, bus, and connectors are all mounted.

[0003] However, the heating modules, busbars, and connectors in the related technologies are independent devices, with a large number of components, a large area occupied, and high cost. Utility Model Content

[0004] To address the aforementioned issues, this application provides a connection device and a vehicle, aiming to solve the problems in related technologies where the heating module, busbar, and connector are independent devices, resulting in a large number of components, a large area occupied, and high costs.

[0005] In a first aspect, this application provides a connection device applied to a vehicle. The vehicle includes a high-voltage power supply and at least one heating module. The connection device includes a connection component and a bus component. The bus component is configured to be fixed within the same housing as the heating module. The bus component includes an insulating housing and a conductive component. The insulating housing is fixed within the housing and has a first receiving cavity. The insulating housing has a first opening communicating with the receiving cavity on the side facing the connection component. The conductive component passes through the first receiving cavity. A portion of the conductive component protrudes from the first opening and extends into the connection component for electrical connection with the high-voltage power supply. Another portion of the conductive component protrudes from the first receiving cavity for electrical connection with the heating module.

[0006] In the above technical solution, the connecting component and the busbar component are integrated into a single connecting device. This connecting device allows for direct transmission of high-voltage electricity from the high-voltage power supply to the heating module, eliminating the need for additional connecting or busbar devices. Specifically, most of the conductive component is located within an insulating housing. A portion of the conductive component protrudes from the insulating housing and extends into the connecting component to receive the high-voltage electricity provided by the high-voltage power supply. This high-voltage electricity is then conducted through the conductive component body within the insulating housing to another portion of the conductive component. The other portion of the conductive component protrudes from the insulating housing and is electrically connected to the heating module. Consequently, the high-voltage electricity can be transmitted to the heating module, enabling it to be energized and heated to heat the battery pack or other components inside the vehicle. By integrating the connecting component and the busbar component into a single unit, space utilization is improved while the architecture is simplified, effectively reducing the number of components and lowering system complexity, overall weight, and cost. Furthermore, when the heating module only needs to fulfill the function of energizing and heating, this connecting device can meet this requirement, resulting in high energy efficiency.

[0007] In conjunction with the first aspect, in some possible implementations, the insulating shell includes a first part and a second part; the first part has a first receiving cavity, extends along a first direction, and has second openings at both ends communicating with the first receiving cavity, and another part of the conductive component protrudes from the second openings to be electrically connected to the heating module; the second part has a second receiving cavity, extends along a second direction, and has third openings at both ends communicating with the first openings, and a part of the conductive component protrudes from the third openings to be electrically connected to the high-voltage power supply; wherein the first direction is perpendicular to the second direction.

[0008] In the above technical solution, the first and second parts can protect the conductive components located in the first and second accommodating cavities, reducing the risk of damage to the conductive components from external objects and improving the service life of the conductive components. Secondly, the first and second parts are respectively positioned and fixed at pre-reserved installation positions within the housing, allowing the conductive component body located inside to be fixed in the pre-reserved installation position, thereby achieving precise connection with the high-voltage power supply and the heating module, and further improving the stability and reliability of high-voltage power transmission among the conductive components, the high-voltage power supply, and the heating module.

[0009] In combination with the first aspect and the above-described implementation, in some possible implementations, the first part includes a first surface and a second surface that are arranged opposite to each other, and at least one positioning element is provided on the second surface.

[0010] In the above technical solution, the second side is the side that is in contact with the reserved installation position on the outer shell. Correspondingly, a positioning groove is also provided at the reserved installation position. The positioning component is inserted into the positioning groove to limit and fix it, so that the first part can be limited and positioned at the reserved installation position, improving the positioning accuracy, thereby improving the positioning accuracy of the insulating shell and the conductive components located therein, and thus improving the reliability of the electrical connection between the conductive components and the high-voltage power supply and the heating module.

[0011] In combination with the first aspect and the above-described implementations, in some possible implementations, the conductive component includes a first conductive element and a second conductive element; the first conductive element is disposed within the first and second receiving cavities, one end of the first conductive element protruding from the third opening extends into the connecting component for electrical connection with a high-voltage power supply, and the other end of the second opening protruding from one end of the first portion is used for electrical connection with a heating module; the second conductive element is disposed within the first and second receiving cavities, one end of the second conductive element protruding from the third opening extends into the connecting component for electrical connection with a high-voltage power supply, and the other end of the second opening protruding from the remaining end of the first portion is used for electrical connection with a heating module.

[0012] In the above technical solution, the positive and negative terminals of the high-voltage power supply are applied to one end of the first conductive element and one end of the second conductive element. For example, assuming that one end of the first conductive element is connected to the positive terminal of the high-voltage power supply and one end of the second conductive element is connected to the negative terminal of the high-voltage power supply, the current flows from the positive terminal of the high-voltage power supply through one end of the first conductive element, the other end of the first conductive element, the heating module, the other end of the second conductive element, and one end of the second conductive element back to the negative terminal of the high-voltage power supply to form a complete circuit, thereby achieving reliable conductivity and enabling the heating module to work stably and reliably.

[0013] In combination with the first aspect and the above implementation, in some possible implementations, the other end of the first conductive member is provided with a first groove, the opening of the first groove being away from the first part; and / or, the other end of the second conductive member is provided with a second groove, the opening of the second groove being away from the first part.

[0014] In the above technical solution, the first groove of the first conductive element is connected to two of the electrodes of the heating module, and the second groove of the second conductive element is connected to the other two electrodes of the heating module. The first groove and the second groove can tighten the electrodes, that is, the connection reliability between the first groove and the second groove and the electrodes of the heating module is high, thereby ensuring the electrical connection reliability between the first conductive element and the second conductive element and the electrodes of the heating module.

[0015] In combination with the first aspect and the above implementation, in some possible implementations, at least one notch is provided on the sidewall of the other end of the first conductive member; and / or, at least one second notch is provided on the sidewall of the other end of the second conductive member.

[0016] In the above technical solution, the first notch and the second notch can release the stress on the first and second conductive components, reducing the risk of breakage when clamped with the heating module, which would render the first and second conductive components unusable. In other words, by setting the first and second notches, the service life and reliability of the first and second conductive components can be improved, thereby enhancing the conductive reliability between them and the heating module.

[0017] In combination with the first aspect and the above-described implementation, in some possible implementations, the connecting component includes a connecting plate with at least one first through hole. A protective wall extends circumferentially on the side of the connecting plate away from the insulating shell. A portion of the conductive component passes through the first opening on the insulating shell and the first through hole on the connecting plate, and extends into the space enclosed by the protective wall for electrical connection with a high-voltage power supply.

[0018] In the above technical solution, on the one hand, the first through hole can limit the conductive component, meaning that when the conductive component is inserted into the first through hole, it can only extend into the space enclosed by the protective wall along the first through hole. This reduces the risk of the conductive component moving during the positioning process and failing to make normal electrical connection with the high-voltage power supply due to a certain positional deviation. Limiting the conductive component through the first through hole ensures high positioning accuracy and facilitates smooth subsequent assembly. On the other hand, the first through hole can fix the conductive component. When the conductive component is inserted into the first through hole, it is fixed inside the first through hole. Even if the vehicle experiences bumps, the conductive component will not detach from the first through hole, thereby further ensuring the conductive reliability between the conductive component and the high-voltage power supply. Furthermore, after the conductive component passes through the first through hole and extends into the space enclosed by the protective wall, the space enclosed by the protective wall not only serves as a containment space but also protects the conductive component, reducing the risk of damage to the conductive component from external objects and improving the service life of the conductive component.

[0019] In combination with the first aspect and the above implementation, in some possible implementations, one of the sidewall of the conductive component and the inner wall of the first through hole is provided with a limiting groove, and the other of the two is provided with a limiting part, which is engaged in the limiting groove.

[0020] In the above technical solution, the snap-fit ​​action between the limiting part and the limiting groove can not only improve the connection between the conductive component and the first through hole, but also improve the positioning accuracy, so as to further improve the reliability of the conductive component and the high voltage power supply.

[0021] In combination with the first aspect and the above implementation, in some possible implementations, a shielding wall and an insulating wall are also provided on one side of the connecting plate in a circumferential direction, and the protective wall, shielding wall and insulating wall are nested in sequence; wherein, there is a gap between the protective wall and the shielding wall, the shielding wall and the insulating wall are tightly fitted, and a part of the conductive component extends into the space enclosed by the insulating wall.

[0022] In the above technical solution, the electromagnetic shielding effect of the connecting components can be improved by using shielding walls and insulating walls, which can meet a higher level of electromagnetic compatibility, improve the reliability of power transmission between the conductive components located inside and the high-voltage power supply, and thus improve the heating reliability of the heating module.

[0023] Secondly, embodiments of this application also provide a vehicle, including a high-voltage power supply, at least one heating module, and a connection device as described in any optional manner of the first aspect. The connection device is electrically connected to the high-voltage power supply and the heating module, and the connection device and the heating module are fixed in the same housing. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a vehicle module structure provided in an embodiment of this application; Figure 2 This is a schematic diagram of the structure of a connecting device provided in an embodiment of this application; Figure 3 This is a partial structural schematic diagram of a connecting device provided in an embodiment of this application; Figure 4 This is a cross-sectional structural schematic diagram of a connecting device provided in an embodiment of this application; Figure 5 This is a partially exploded structural diagram of a connecting device provided in an embodiment of this application; Figure 6 This is a top view of a connecting device provided in an embodiment of this application; Figure 7 This is a partial cross-sectional structural diagram of a connecting device provided in an embodiment of this application; Figure 8 This is a schematic diagram of another vehicle module structure provided in an embodiment of this application; Figure 9 This is a partial top view structural diagram of a vehicle provided in an embodiment of this application; Figure 10 This is a top view of another connecting device provided in an embodiment of this application; Figure 11 This is a side view of a connecting device provided in an embodiment of this application; Figure 12 This is a schematic diagram of another connecting device provided in an embodiment of this application; Figure 13 This is a schematic diagram of the structure of a connecting component provided in an embodiment of this application.

[0025] In the attached figures, the following labels are used: 1. Connecting device; 11. Connecting component; 111. Connecting plate; 111A. First through hole; 112. Protective wall; 113. Shielding wall; 114. Insulating wall; 115. Bushing; 116. Equipotential contact; 117. Interlocking structure; 12. Busbar component; 12A. First receiving cavity; 12B. First opening; 12C. Second opening; 12D. Second receiving cavity; 12E. Third opening; 121. Insulating shell; 1211. First part; 121 1A. Second through hole; 1212. Second part; 1213. First bend; 1214. Positioning element; 122. Conductive component; 1221. First conductive element; 1221A. First groove; 1221B. First notch; 1222. Second conductive element; 1222A. Second groove; 1222B. Second notch; 1223. Second bend; 1224. Limiting part; 2. High voltage power supply; 3. Heating module; 31. Heating tube; 311. Electrode; AA, First Direction; BB, Second Direction; CC, Third Direction. Detailed Implementation

[0026] The technical solutions in this application will be clearly and thoroughly described below with reference to the accompanying drawings. In the description of the embodiments of this application, unless otherwise stated, " / " means "or," for example, A / B can mean A or B. "And / or" in the text is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Furthermore, in the description of the embodiments of this application, "multiple" refers to two or more than two.

[0027] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0028] Vehicle battery packs have stringent temperature requirements during operation. Low temperatures can lead to decreased battery capacity, increased internal resistance, and even prevent normal charging and discharging. Therefore, vehicles typically include heaters to preheat the battery pack, ensuring it operates within a suitable temperature range. These heaters also incorporate busbars and connectors. The heating module is often used in conjunction with the busbar and connected to the vehicle via connectors, allowing for efficient power transfer to the heating module and thus providing both battery and interior heating. Furthermore, when the heating module is integrated with other components (such as the vehicle's compressor), its internal circuitry is simplified; individual units only need to provide heating functionality.

[0029] However, the heating modules, busbars, and connectors in related technologies are independent components, resulting in a large number of parts, a large footprint, and high costs. Furthermore, when the heating module only needs to fulfill the function of heating upon power connection, the existing connector and busbar structures cannot meet the usage requirements, leading to low energy efficiency.

[0030] Therefore, this application provides a connection device and a vehicle. The connection device integrates the connection components and the busbar components into one unit through an integrated design, which improves space utilization and simplifies the architecture, effectively reduces the number of parts, reduces system complexity, overall quality and cost, and has cost advantages.

[0031] The following description, in conjunction with the accompanying drawings, provides an exemplary description of the connection device and vehicle provided in this application.

[0032] In one example, this application provides a vehicle equipped with a heater to preheat the battery pack within the vehicle, ensuring that the battery pack operates within a suitable temperature range. The heater can also be used to heat other loads within the vehicle; this application does not specifically limit its use in this regard.

[0033] For example, such as Figure 1 As shown, the heater includes a connecting device 1 and at least one heating module 3. The connecting device 1 is electrically connected to the heating module 3, and the connecting device 1 is also connected to the high-voltage power supply 2 at the vehicle end. That is, the heater end achieves electrical connection with the high-voltage power supply 2 at the vehicle end through the connecting device 1. It is worth noting that the heater provided in this application also includes other components, such as a housing. The connecting device 1 and the heating module 3 are fixed in the same housing (not shown in the figure) to achieve precise connection. Furthermore, the connecting device 1 and the heating module 3 can be an integral structure or an independent structure; this application does not impose specific limitations on this.

[0034] Among them, the high-voltage power supply 2 at the vehicle end is used to provide high-voltage electricity, and the connecting device 1 can transfer the high-voltage electricity applied thereto to the heating module 3, so that the heating module 3 is powered on and heated to heat the battery pack or other parts inside the vehicle.

[0035] Optionally, the heating module 3 can be a positive temperature coefficient (PTC) heating module, a resistance wire heating module, a heating film, or other alternative heating loads. This application does not impose specific restrictions on this.

[0036] In order for the connecting device 1 to transfer high-voltage electricity to the heating module 3, in one example, please refer to... Figure 2 and Figure 3 As shown, the connecting device 1 includes a connecting component 11 and a bus component 12. The bus component 12 is configured to be fixed within the same housing as the heating module 3.

[0037] The busbar component 12 includes an insulating housing 121 and a conductive component 122. The insulating housing 121 is fixed inside the outer casing and has a first receiving cavity 12A. The side of the insulating housing 121 facing the connecting component 11 has a first opening 12B communicating with the receiving cavity 12A. The conductive component 122 passes through the first receiving cavity 12A; that is, the conductive component 122 is located within the first receiving cavity 12A and partially protrudes from it. Specifically, a portion of the conductive component 122 protruding from the first opening 12B extends into the connecting component 11 for electrical connection with the high-voltage power supply 2, and another portion of the conductive component 122 protruding from the first receiving cavity 12A is used for electrical connection with the heating module 3.

[0038] In this example, a portion of the conductive component 122 protrudes from the first opening 12B and extends into the connecting member 11. This portion of the conductive component 122 can receive high-voltage electricity provided by the high-voltage power supply 2 and conduct it through the body of the conductive component 122 to another portion of the conductive component 122. The other portion of the conductive component 122 protruding from the first receiving cavity 12A is electrically connected to the heating module 3. Correspondingly, the high-voltage electricity can be transferred to the heating module 3, causing the heating module 3 to be energized and heated to heat the battery pack or other components inside the vehicle. That is, the connecting device 1 provided in this application can directly transmit the high-voltage electricity from the high-voltage power supply 2 to the heating module 3 without the need for additional devices.

[0039] Understandably, most of the conductive component 122 is located within the first receiving cavity 12A of the insulating housing 121. In this case, the insulating housing 121 protects the conductive component 122, reducing the risk of damage from exposed foreign objects and improving its service life. A portion of the conductive component 122 protrudes from the first opening 12B and extends into the connecting member 11. Here, on the one hand, the connecting member 11 protects this protruding portion of the conductive component 122, reducing the risk of damage from foreign objects and further improving its service life. On the other hand, a portion of the conductive component 122 is fixedly connected to the connecting member 11, thus achieving connection with the high-voltage power supply 2. This improves the docking accuracy between the conductive component 122 and the high-voltage power supply 2, thereby enhancing the reliability of high-voltage power transmission between the high-voltage power supply 2 and the conductive component 122.

[0040] Thus, this application integrates the connecting component 11 and the busbar component 12 into the same connecting device 1. This connecting device 1 allows direct transmission of high-voltage electricity from the high-voltage power supply 2 to the heating module 3, eliminating the need for additional connecting or busbar devices. Specifically, most of the conductive component 122 is located within the insulating housing 121. A portion of the conductive component 122 protrudes from the insulating housing 121 and extends into the connecting component 11 to receive the high-voltage electricity provided by the high-voltage power supply 2. This high-voltage electricity is conducted through the conductive component 122 within the insulating housing 121 to another portion of the conductive component 122. The other portion of the conductive component 122 protrudes from the insulating housing 121 and is electrically connected to the heating module 3. Correspondingly, the high-voltage electricity can be transmitted to the heating module 3, enabling it to be energized and heated to heat the battery pack or other components inside the vehicle. By integrating the connecting component 11 and the busbar component 12 into a single unit, space utilization is improved while the architecture is simplified, effectively reducing the number of components, system complexity, overall weight, and cost. Secondly, when the heating module 3 only needs to meet the function of heating upon power-on, especially when it is suitable for heating modules 3 that do not include high-voltage control, the connection device 1 can meet the usage requirements and has high energy utilization efficiency.

[0041] In one example, please refer to Figures 4 to 7 As shown, the insulating housing 121 includes a first part 1211 and a second part 1212. The first part 1211 has a first receiving cavity 12A. The first part 1211 extends along a first direction AA. The two ends of the first part 1211 are respectively provided with second openings 12C communicating with the first receiving cavity 12A. Another part of the conductive component 122 protrudes from the second opening 12C to be electrically connected to the heating module 3.

[0042] In this example, another portion of the conductive component 122 protrudes from the first portion 1211 through the second opening 12C to achieve electrical connection with the heating module 3. The first portion 1211 as a whole serves as a protective shell for the conductive component 122, protecting it, reducing the risk of damage from external objects, and extending its service life. Furthermore, the first portion 1211 can be fixed at a pre-reserved mounting position within the shell, allowing the conductive component 122 inside to be securely fixed in the pre-reserved mounting position, thereby achieving a precise connection with the heating module 3.

[0043] There may be a height difference between the location of the heating module 3 and the reserved installation location of the conductive component 122. To improve the connection reliability between the conductive component 122 and the heating module 3, please refer to the following example. Figure 4 and Figure 5 As shown, the first part 1211 has first bends 1213 at both ends, and a second opening 12C is formed in the first bend 1213. It can be understood that the second opening 12C is positioned perpendicular to the first direction AA, i.e., the second opening 12C faces the third direction CC, and the first direction AA is perpendicular to the third direction CC. The conductive component 122 also has a corresponding second bend 1223, which protrudes from the second opening 12C of the first bend 1213 and extends to connect with the heating module 3.

[0044] In this example, the height difference between the conductive component 122 and the heating module 3 can be eliminated by the first bending portion 1213 and the second bending portion 1223, so as to improve the connection reliability between the conductive component 122 and the heating module 3, thereby improving the reliability of high voltage transmission between the conductive component 122 and the heating module 3.

[0045] Optionally, the lengths of the first bending portion 1213 and the second bending portion 1223 can be set according to the height difference between the setting position of the heating module 3 inside the housing and the reserved installation position inside the housing. This application does not impose specific restrictions on this.

[0046] Optionally, if there is no height difference between the setting position of the heating module 3 and the reserved installation position, and they are on the same plane, the first bending part 1213 and the second bending part 1223 may not be provided. Instead, the conductive component 122 directly protrudes from the second opening 12C and is electrically connected to the heating module 3. It is understood that in this case, the second opening 12C is oriented towards the first direction AA. The specific setting position of the second opening 12C can be set according to the shape of the first part 1211. The shape of the first part 1211 can be set according to the position and height difference between the setting position of the heating module 3 and the reserved installation position. This application does not impose specific restrictions on this.

[0047] To improve the stability of the first part 1211 fixed in the reserved mounting position inside the housing, in one example, such as Figure 4 As shown, the first part 1211 includes a first surface and a second surface arranged opposite to each other, and at least one positioning element 1214 is provided on the second surface. It can be understood that the second surface is the surface that is in contact with the reserved installation position, and correspondingly, a positioning groove is also provided at the reserved installation position inside the housing. The positioning element 1214 is inserted into the positioning groove to limit and fix the position, enabling the first part 1211 to be limited and positioned at the reserved installation position inside the housing, improving positioning accuracy, thereby improving the positioning accuracy of the insulating housing 121 and the conductive component 122 located therein, and thus improving the reliability of the electrical connection between the conductive component 122 and the high-voltage power supply 2 and the heating module 3.

[0048] Optionally, the positioning element 1214 can be a positioning post, and the corresponding positioning groove is a positioning recess. The positioning post is inserted into the positioning recess so that the first part 1211 is positioned at the reserved installation position inside the housing. The number of positioning elements 1214 can be one or more, depending on actual needs. For example, to save costs, only one positioning element 1214 can be provided on the second surface, simply positioning the first part 1211 at the reserved installation position, and then securing it with other fasteners. Alternatively, to avoid potential misalignment of the first part 1211 when using only one positioning element 1214, and to improve positioning reliability, two or more positioning elements 1214 can be spaced apart on the second surface to improve positioning accuracy. In other words, the specific number and position of the positioning elements 1214 on the second surface can be selected according to actual needs, and this application does not impose specific limitations on this.

[0049] Furthermore, such as Figure 6 As shown, the first part 1211 is also provided with a second through hole 1211A. Correspondingly, a through hole is also provided at the reserved mounting position inside the housing. By using fasteners (such as bolts, screws, etc.) to pass through the second through hole 1211A and the reserved mounting position through hole, the first part 1211 can be firmly fixed at the mounting position. The fasteners passing through the second through hole 1211A and the reserved mounting position through hole can improve the firmness of the first part 1211 fixed at the reserved mounting position, thereby improving the firmness of the insulating housing 121 and the conductive component 122 located therein, and further improving the reliability of the electrical connection between the conductive component 122 and the high-voltage power supply 2 and the heating module 3.

[0050] Optionally, the number of second through holes 1211A and fasteners can be one or more, depending on actual needs. For example, to save costs, only one second through hole 1211A and one corresponding fastener can be provided on the second surface. To further improve the fixing firmness, two or more second through holes 1211A can be provided at intervals on the first part 1211, and multiple fasteners are also required to further improve the fixing firmness. That is, the specific number and location of the second through holes 1211A and fasteners can be selected according to actual needs, and this application does not impose specific restrictions on this.

[0051] In one example, the first part 1211 may also be provided with a copper busbar. The copper busbar positioning design can effectively prevent the conductive component 122 from moving during the plastic wrapping process, thereby ensuring that the conductive component 122 has high positional accuracy in the first part 1211, which facilitates the smooth progress of subsequent automated assembly processes, and thus facilitates automated assembly.

[0052] In one example, such as Figure 7 As shown, the second part 1212 has a second receiving cavity 12D. The second part 1212 extends along the second direction BB. The two ends of the second part 1212 are respectively provided with a third opening 12E communicating with the first opening 12B. A part of the conductive component 122 protrudes from the third opening 12E to be electrically connected to the high-voltage power supply 2. The second direction BB is perpendicular to the first direction AA.

[0053] In this example, a portion of the conductive component 122 protrudes from the second portion 1212 through the third opening 12E to achieve electrical connection with the high-voltage power supply 2. The first portion 1211 serves as a protective shell for the conductive component 122 body, protecting the conductive component 122, reducing the risk of damage to the conductive component 122 from external objects, and improving the service life of the conductive component 122. Furthermore, the second portion 1212 can be fixed at a pre-designated installation location on the vehicle, allowing the conductive component 122 body located within it to be securely fixed at the pre-designated installation location, thereby achieving a precise connection with the high-voltage power supply 2.

[0054] Thus, the first part 1211 and the second part 1212 can protect the conductive component 122 located in the first receiving cavity 12A and the second receiving cavity 12D, reducing the risk of damage to the conductive component 122 by foreign objects and improving the service life of the conductive component 122. Secondly, the first part 1211 and the second part 1212 are respectively positioned and fixed in the reserved installation positions, so that the conductive component 122 body located inside can be fixed in the reserved installation positions, thereby achieving precise connection with the high-voltage power supply 2 and the heating module 3, thereby improving the stability and reliability of high-voltage electricity transmission among the conductive component 122, the high-voltage power supply 2 and the heating module 3.

[0055] Optionally, the encapsulation of the first part 1211 and the second part 1212 may be made of insulating material to ensure insulation capability and improve the reliability of electrical transmission.

[0056] In one example, please refer to Figures 5 to 8 As shown, the conductive component 122 includes a first conductive element 1221 and a second conductive element 1222. The first conductive element 1221 is disposed within the first receiving cavity 12A and the second receiving cavity 12D. One end of the first conductive element 1221 protruding from the third opening 12E extends into the connecting component 11 for electrical connection with the high-voltage power supply 2. The other end of the first conductive element 1221 protruding from one end of the first portion 1211 through the second opening 12C is used for electrical connection with the heating module 3. The second conductive element 1222 is disposed within the first receiving cavity 12A and the second receiving cavity 12D. One end of the second conductive element 1222 protruding from the third opening 12E extends into the connecting component 11 for electrical connection with the high-voltage power supply 2. The other end of the second conductive element 1222 protruding from the remaining end of the first portion 1211 through the second opening 12C is used for electrical connection with the heating module 3.

[0057] The connecting device 1 provided in this application can be electrically connected to one or more heating modules 3. When the connecting device 1 is electrically connected to one heating module 3, the conductive component 122 may include one first conductive element 1221 and one second conductive element 1222; when the connecting device 1 is electrically connected to two heating modules 3, the conductive component 122 may include one first conductive element 1221 and two second conductive elements 1222; when the connecting device 1 is electrically connected to three heating modules 3, the conductive component 122 may include one first conductive element 1221 and three second conductive elements 1222. That is, the number of second conductive elements 1222 corresponds to the number of heating modules 3.

[0058] It is worth noting that each heating module 3 has two endpoints. The first conductive element 1221 is electrically connected to one endpoint of the plurality of heating modules 3, and the plurality of second conductive elements 1222 are respectively connected to the other endpoint of the plurality of heating modules 3. For example, taking a heater with two heating modules 3 as an example, the connecting device 1 has one first conductive element 1221 and two second conductive elements 1222. The high voltage of the high voltage power supply 2 is applied to the connecting device 1, that is, applied to one end of the first conductive element 1221 and one end of the second conductive element 1222. The connecting device 1 is connected to the two heating modules 3. At this time, the other end of the first conductive element 1221 is connected to the endpoint of the two heating modules 3, and the other end of the two second conductive elements 1222 is connected to the endpoint of the two heating modules 3 respectively. At this time, a connection is formed between the connecting device 1 and the two heating modules 3 as follows: Figure 8The two parallel circuits shown reduce ripple current, ensuring current stability and thus guaranteeing the stability of heating module 3's heating. Furthermore, the two parallel circuits prevent the failure of one circuit from causing the entire product to fail, improving the reliability of the connection device 1.

[0059] This application provides an exemplary description of the connection device 1 provided herein, using an example of a heater equipped with two heating modules 3. The number of heating modules 3 and the corresponding number of second conductive elements 1222 can be set according to actual needs, and this application does not impose specific limitations on this.

[0060] The conductive component 122 includes a first conductive element 1221 and two second conductive elements 1222. Assume one end of the first conductive element 1221 is connected to the positive terminal of the high-voltage power supply 2, and one end of each of the two second conductive elements 1222 is connected to the negative terminal of the high-voltage power supply 2. The other end of the first conductive element 1221 is connected to two heating modules 3, and one end of each of the two second conductive elements 1222 is connected to one heating module 3. Correspondingly, when the positive and negative terminals of the high-voltage power supply 2 are applied to one end of the first conductive element 1221 and one end of each of the two second conductive elements 1222, the current flows from the positive terminal of the high-voltage power supply 2 through one end of the first conductive element 1221, the other end of the first conductive element 1221, the two heating modules 3, the other ends of the two second conductive elements 1222, and back to the negative terminal of the high-voltage power supply 2, forming a complete circuit to achieve reliable conductivity and enable the heating modules 3 to operate stably and reliably. The reverse is also true.

[0061] It is worth noting that the ends of the first conductive element 1221 and the second conductive element 1222 connected to the high-voltage power supply 2 are pin-type connector pins (PINs) to achieve a reliable electrical connection with the high-voltage power supply 2. For example... Figure 9 As shown, the other ends of the first conductive element 1221 and the second conductive element 1222 are respectively connected to the heating tubes 31 of the heating module 3. Specifically, the heating tubes 31 corresponding to the two heating modules 3 are provided with four electrodes 311. The other end of the first conductive element 1221 is connected to two of the electrodes 311 of the heating tube 31, and the other end of the second conductive element 1222 is connected to the remaining two electrodes 311 of the heating tube 31. At this time, the high voltage of the high voltage power supply 2 is applied to the three pins and connected through the four electrodes 311 of the heating tube 31 to form two circuits.

[0062] Optionally, when the first conductive element 1221 and the second conductive element 1222 are connected to the high-voltage power supply 2 at one end, the lengths of the three conductive elements can be chosen to be the same to improve aesthetics, or the lengths of the three conductive elements can be chosen to be different. Whether the lengths of the three conductive elements are the same or not will not affect the conductivity. Therefore, this application does not impose specific restrictions on the lengths of the three conductive elements.

[0063] Optionally, the first conductive element 1221 and the second conductive element 1222 can be selected as copper plates or other conductive elements that can achieve reliable conductivity. This application does not impose specific restrictions on this.

[0064] In one example, such as Figure 5 and Figure 10 As shown, the other end of the first conductive element 1221 is provided with a first groove 1221A, and the opening of the first groove 1221A is away from the first portion 1211. And / or, the other end of the second conductive element 1222 is provided with a second groove 1222A, and the opening of the second groove 1222A is away from the first portion 1211.

[0065] In this example, the first groove 1221A of the first conductive element 1221 is connected to two electrodes (not shown in the figure) of the heating module 3, and the second groove 1222A of the second conductive element 1222 is connected to the other two electrodes (not shown in the figure) of the heating module 3. The first groove 1221A and the second groove 1222A can tighten the electrodes, that is, the connection reliability between the first groove 1221A and the second groove 1222A and the electrodes of the heating module 3 is high, thereby ensuring the electrical connection reliability between the first conductive element 1221 and the second conductive element 1222 and the electrodes of the heating module 3.

[0066] Optionally, the first groove 1221A and the second groove 1222A can be U-shaped or other shaped grooves. The first groove 1221A and the second groove 1222A are processed by resistance welding to further tighten the electrodes and prevent the electrodes from separating from the first groove 1221A and the second groove 1222A. Welding can further improve the connection reliability between the first groove 1221A and the second groove 1222A and the electrodes of the heating module 3, and facilitate automated welding.

[0067] In one example, such as Figure 5 and Figure 10 As shown, at least one first notch 1221B is provided on the side wall of the other end of the first conductive member 1221. And / or, at least one second notch 1222B is provided on the side wall of the other end of the second conductive member 1222.

[0068] In this example, the first notch 1221B and the second notch 1222B can release the stress on the first conductive element 1221 and the second conductive element 1222, reducing the risk of breakage when clamped with the heating module 3, which would render the first conductive element 1221 and the second conductive element 1222 unusable. In other words, by providing the first notch 1221B and the second notch 1222B, the service life and reliability of the first conductive element 1221 and the second conductive element 1222 can be improved, thereby enhancing the conductive reliability between them and the heating module 3.

[0069] Optionally, the first notch 1221B and the second notch 1222B can be positioned as shown in the figure. Furthermore, to further improve the release effect, two opposing first notches 1221B are provided on the sidewall of the other end of the first conductive element 1221, meaning the two first notches 1221B are positioned opposite each other and have opposite opening directions. And / or, two opposing second notches 1222B are provided on the sidewall of the other end of the second conductive element 1222, meaning the two second notches 1222B are positioned opposite each other and have opposite opening directions. The specific positions and number of the first notches 1221B and the second notches 1222B can be set according to actual needs, and this application does not impose specific limitations on this.

[0070] In one example, please refer to Figures 11 to 12 As shown, the connecting component 11 may include a connecting plate 111, which has at least one first through hole 111A. A protective wall 112 extends circumferentially on the side of the connecting plate 111 facing away from the insulating housing 121. It is worth noting that the protective wall 112 extending circumferentially on one side of the connecting plate 111 will form a... Figure 12 The shown containment space. A portion of the conductive component 122 passes through the first opening 12B on the insulating housing 121 and the first through hole 111A on the connecting plate 111, and extends into the space enclosed by the protective wall 112 for electrical connection with the high-voltage power supply 2.

[0071] Understandably, once the busbar component 12 is installed in its designated position, it aligns with the connecting component 11. The conductive component 122, protruding from the insulating housing 121, is inserted into the first through hole 111A of the connecting plate 111. Care must be taken to ensure the accuracy of the position and orientation when inserting the conductive component 122. When the conductive component 122 can pass through the first through hole 111A and extend into the space enclosed by the protective wall 112, it signifies that the conductive component 122 is also in place. At this point, the connecting device 1 is fully installed and ready for subsequent connection to the high-voltage power supply 2 and the heating module 3.

[0072] In this example, on the one hand, the first through hole 111A can limit the conductive component 122, meaning that when the conductive component 122 extends into the first through hole 111A, it can only extend along the first through hole 111A into the space enclosed by the protective wall 112. This reduces the risk that the conductive component 122 may move during the positioning process and fail to make normal electrical connection with the high-voltage power supply 2 due to a certain positional deviation. Limiting the conductive component 122 through the first through hole 111A ensures high positioning accuracy, which is beneficial for the smooth progress of subsequent assembly. On the other hand, the first through hole 111A can fix the conductive component 122. When the conductive component 122 extends into the first through hole 111A, the conductive component 122 is fixed in the first through hole 111A. Even if the vehicle experiences bumps, the conductive component 122 will not detach from the first through hole 111A, thereby further ensuring the conductive reliability between the conductive component 122 and the high-voltage power supply 2. Secondly, after the conductive component 122 passes through the first through hole 111A, it extends into the space enclosed by the protective wall 112. At this time, the space enclosed by the protective wall 112 is not only a receiving space, but also plays a protective role for the conductive component 122, reducing the risk of the conductive component 122 being damaged by external objects and improving the service life of the conductive component 122.

[0073] To further improve the connection between the conductive component 122 and the first through hole 111A, in one example, one of the side wall of the conductive component 122 and the inner wall of the first through hole 111A is provided with a limiting groove, and the other is provided with a limiting part. The limiting part is engaged in the limiting groove to achieve a fixed connection between the conductive component 122 and the first through hole 111A, thereby further improving the connection between the two.

[0074] For example, please refer to Figure 5 and Figure 7 As shown, a limiting part 1224 is provided on the side wall of the conductive component 122, and a limiting groove (not shown) is provided on the inner wall of the first through hole 111A. When the conductive component 122 extends into the first through hole 111A and extends into the space enclosed by the protective wall 112 until the limiting part 1224 of the conductive component 122 engages with the limiting groove of the first through hole 111A, it indicates that the conductive component 122 has been installed in place. At this time, the conductive component 122 located in the space enclosed by the protective wall 112 can be normally electrically connected to the high-voltage power supply 2. Through the engaging action between the limiting part and the limiting groove, not only can the connection between the conductive component 122 and the first through hole 111A be strengthened, but the positioning accuracy can also be improved, thereby further improving the reliability of the electrical connection between the conductive component 122 and the high-voltage power supply 2.

[0075] Optionally, the limiting part 1224 can be a barbed structure as shown in the figure, or a spring piece or other limiting structure. This application does not impose specific limitations on this.

[0076] It is understandable that when the vehicle is equipped with two heating modules 3, after the three pins of the conductive component 122 are limited by the limiting part 1224 and the limiting groove, the extension length of the three pins is the same, so as to achieve precise electrical connection with the high voltage power supply 2.

[0077] In one example, please refer to Figure 11 and Figure 12 As shown, bolt holes are provided around the connecting plate 111, and bushings 115 are provided in the bolt holes. The connecting plate 111 is connected to a preset fixed position in the vehicle using bolts or other fasteners. The bolts or other fasteners pass through the bushings 115 to fix the connecting plate 111 in the preset fixed position in the vehicle. The bushings 115 at the bolt holes can increase the strength of the connection position, avoid damage or cracking when tightening, and make the sealing reliability higher. Correspondingly, the waterproof rating is also higher, avoiding the problem of air leakage and water ingress caused by temperature changes. This improves the firmness of the connecting plate 111 fixed in the preset fixed position in the heater, thereby improving the overall connection firmness between the connecting component 11 and the vehicle.

[0078] In one example, please refer to Figure 11 and Figure 12 As shown, a shielding wall 113 and an insulating wall 114 are also provided on one side of the connecting plate 111 along the circumferential direction, and the protective wall 112, the shielding wall 113 and the insulating wall 114 are sequentially nested. There is a gap between the protective wall 112 and the shielding wall 113, the shielding wall 113 and the insulating wall 114 are tightly fitted, and a part of the conductive component 122 extends into the space enclosed by the insulating wall 114.

[0079] In this example, the electromagnetic shielding effect of the connecting component 11 can be improved by the shielding wall 113 and the insulating wall 114, which meets a higher level of electromagnetic compatibility (EMC) and improves the reliability of power transmission between the conductive component 122 located inside and the high-voltage power supply 2, thereby correspondingly improving the heating reliability of the heating module 3.

[0080] To further improve the electromagnetic shielding effect, such as Figure 13 As shown, a shielding wall 113 is also provided on the other side of the connecting plate 111, and the shielding wall 113 is as follows: Figure 13 The solid structural component shown has a first through hole 111A passing through the protrusion 116 and the shielding wall 113. A portion of the conductive component 122 extends from the first through hole 111A on the shielding wall 113 on the other side of the connecting plate 111 into the space enclosed by the insulating wall 114 on one side of the connecting plate 111, in order to further improve the electromagnetic shielding effect.

[0081] In one example, such as Figure 13As shown, the shielding wall 113 on the other side of the connecting plate 111 has equipotential contacts 116 on at least two sides. Combined with the metal mounting parts and wiring harness connectors in the vehicle, the connecting component 11 can achieve all-round electromagnetic shielding to further meet higher levels of EMC, further improve the reliability of power transmission between the conductive component 122 located inside and the high-voltage power supply 2, thereby further improving the heating reliability of the heating module 3.

[0082] Optionally, the specific number and location of the equipotential contacts 116 can be set according to actual needs, and this application does not impose specific restrictions on this.

[0083] In one example, please refer to Figure 11 and Figure 13 As shown, an interlocking structure 117 is provided on one side of the connecting plate 111. The interlocking structure 117 can ensure that the connecting component 11 and the connector are properly inserted into each other, thereby ensuring the effectiveness of the connection between the two and meeting the safety requirements of high-voltage electricity use.

[0084] Optionally, the connecting component 11 can be made of plastic-coated material. Plastic-coated material does not absorb water and can meet the requirements of high insulation withstand voltage and insulation resistance, ensuring high safety and reliability. Other materials can also be used for the connecting component 11; this application does not impose specific restrictions on this.

[0085] In summary, this application integrates the connecting component 11 and the busbar component 12 into a single connecting device 1. This connecting device 1 allows direct transmission of high-voltage electricity from the high-voltage power supply 2 to the heating module 3, eliminating the need for additional connecting or busbar devices. Specifically, most of the conductive component 122 is located within the insulating housing 121. A portion of the conductive component 122 protrudes from the insulating housing 121 and extends into the connecting component 11 to receive the high-voltage electricity provided by the high-voltage power supply 2. This high-voltage electricity is conducted through the conductive component 122 within the busbar component 12 to another portion of the conductive component 122. The other portion of the conductive component 122 protrudes from the insulating housing 121 and is electrically connected to the heating module 3. Correspondingly, the high-voltage electricity can be transmitted to the heating module 3, enabling it to be energized and heated to heat the battery pack or other components inside the vehicle. By integrating the connecting component 11 and the busbar component 12 into a single unit, space utilization is improved while the architecture is simplified, effectively reducing the number of components, system complexity, overall weight, and cost. Secondly, when the heating module 3 only needs to meet the function of heating upon power-on, especially when it is suitable for heating modules 3 that do not include high-voltage control, the connection device 1 can meet the usage requirements and has high energy utilization efficiency.

[0086] Through the above description of the embodiments, those skilled in the art will understand that, for the sake of convenience and brevity, only the division of the above functional modules is used as an example. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0087] In the embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another device, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0088] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A connection device (1) applied to a vehicle, the vehicle including a high-voltage power supply (2) and at least one heating module (3), characterized in that, The connecting device (1) includes a connecting component (11) and a busbar component (12). The busbar component (12) is configured to be fixed in the same housing as the heating module (3). The busbar component (12) includes: An insulating housing (121) is fixed inside the outer shell. The insulating housing (121) has a first receiving cavity (12A) inside, and a first opening (12B) communicating with the receiving cavity (12A) is provided on the side of the insulating housing (121) facing the connecting member (11). A conductive component (122) is disposed within the first receiving cavity (12A). A portion of the conductive component (122) protrudes from the first opening (12B) and extends into the connecting member (11) for electrical connection with the high-voltage power supply (2). Another portion of the conductive component (122) protrudes from the first receiving cavity (12A) for electrical connection with the heating module (3).

2. The connecting device (1) according to claim 1, characterized in that, The insulating housing (121) includes: The first part (1211) has a first receiving cavity (12A) within it. The first part (1211) extends along a first direction. Each end of the first part (1211) has a second opening (12C) communicating with the first receiving cavity (12A). Another part of the conductive component (122) protrudes from the second opening (12C) to be electrically connected to the heating module (3). The second part (1212) has a second receiving cavity (12D) inside. The second part (1212) extends along a second direction. The two ends of the second part (1212) are respectively provided with a third opening (12E) communicating with the first opening (12B). A part of the conductive component (122) protrudes from the third opening (12E) to be electrically connected to the high voltage power supply (2). Wherein, the first direction is perpendicular to the second direction.

3. The connecting device (1) according to claim 2, characterized in that, The first part (1211) includes a first surface and a second surface that are disposed opposite to each other, and at least one positioning element is provided on the second surface.

4. The connecting device (1) according to claim 2, characterized in that, The conductive component (122) includes: A first conductive element (1221) is disposed within the first receiving cavity (12A) and the second receiving cavity (12D). One end of the first conductive element (1221) protruding from the third opening (12E) extends into the connecting member (11) for connection to the high-voltage power supply (2). The other end of the first conductive element (1221) protruding from one end of the first portion (1211) of the second opening (12C) is for electrical connection to the heating module (3). The second conductive element (1222) is disposed in the first receiving cavity (12A) and the second receiving cavity (12D). One end of the second conductive element (1222) protruding from the third opening (12E) extends into the connecting member (11) for connection with the high voltage power supply (2). The other end of the second conductive element (1222) protruding from the other end of the second opening (12C) of the first part (1211) is used for electrical connection with the heating module (3).

5. The connecting device (1) according to claim 4, characterized in that, The other end of the first conductive element (1221) is provided with a first groove (1221A), and the opening of the first groove (1221A) is away from the first part (1211). And / or, The other end of the second conductive element (1222) is provided with a second groove (1222A), and the opening of the second groove (1222A) is away from the first part (1211).

6. The connecting device (1) according to claim 4, characterized in that, At least one first notch (1221B) is provided on the side wall of the other end of the first conductive element (1221). And / or, At least one second notch (1222B) is provided on the side wall of the other end of the second conductive element (1222).

7. The connecting device (1) according to any one of claims 1-6, characterized in that, The connecting component (11) includes: A connecting plate (111) is provided with at least one first through hole (111A). A protective wall (112) extends circumferentially on the side of the connecting plate (111) away from the insulating shell (121). A portion of the conductive component (122) passes through the first opening (12B) on the insulating shell (121) and the first through hole (111A) on the connecting plate (111) and extends into the space enclosed by the protective wall (112) for electrical connection with the high voltage power supply (2).

8. The connecting device (1) according to claim 7, characterized in that, The conductive component (122) has a limiting groove on one of its sidewalls and the inner wall of the first through hole (111A), and the other of its sidewalls has a limiting part, which is engaged in the limiting groove.

9. The connecting device (1) according to claim 7, characterized in that, A shielding wall (1122) and an insulating wall (114) are also provided on one side of the connecting plate (111) in a circumferential direction, and the protective wall (112), the shielding wall (1122) and the insulating wall (114) are sequentially fitted together; There is a gap between the protective wall (112) and the shielding wall (1122), the shielding wall (1122) and the insulating wall (114) are tightly fitted, and a part of the conductive component (122) extends into the space enclosed by the insulating wall (114).

10. A vehicle, characterized in that, include: High voltage power supply (2); At least one heating module (3); and, The connecting device (1) as described in any one of claims 1-9 is electrically connected to the high-voltage power supply (2) and the heating module (3), and the connecting device (1) and the heating module (3) are fixed in the same housing.

Images