Heating control module, power distribution device, battery pack and electric equipment

Abstract

The utility model provides a heating control module, a power distribution device, a battery pack and electric equipment, and relates to the technical field of batteries. The heating control module comprises a relay and a heating fuse, wherein the relay comprises a shell and a relay body; the shell is provided with a mounting cavity, and the heating fuse and the relay body are arranged in the mounting cavity. According to the heating control module provided by the embodiment of the invention, the heating fuse can be integrated in the shell of the relay, electrical isolation of the heating fuse is realized by utilizing the shell of the relay, and the problems of insufficient system integration degree, low production efficiency and increased manufacturing cost of a distribution box can be solved.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a heating control module, a power distribution device, a battery pack, and an electrical device. Background Technology

[0002] New energy distribution boxes, especially those equipped with heating circuits, are crucial in electric vehicles, energy storage systems, and other fields. By integrating a battery management system, they enable precise monitoring and protection of the heating circuit and other circuits, ensuring the safe and efficient operation of the system.

[0003] In new energy distribution boxes, heating relays and heating fuses are key components. Heating relays are wave soldered to the circuit board, while heating fuses, being wider than the relays, require horizontal insertion and soldering to the board. Due to space constraints, heating fuses are often placed further away from the heating relays. To meet electrical clearance requirements, additional plastic retaining ribs or electrical clearance protection covers are needed between the heating fuse and adjacent conductive parts, increasing the number of insulating parts and the amount of plastic used.

[0004] It is evident that the installation of heating relays and heating fuses in distribution boxes is limited by space and electrical clearance requirements, resulting in insufficient system integration, reduced production efficiency, and increased manufacturing costs. Utility Model Content

[0005] This application provides a heating control module, a power distribution device, a battery pack, and electrical equipment to solve the problems of insufficient system integration, reduced production efficiency, and increased manufacturing costs of power distribution boxes.

[0006] Firstly, this application provides a heating control module, including...

[0007] A relay and a thermal fuse, the relay comprising a housing and a relay body;

[0008] The housing is provided with a mounting cavity, and the heating fuse and the relay body are disposed in the mounting cavity.

[0009] As an optional implementation, the heating fuse is vertically arranged inside the housing.

[0010] As an optional implementation, the heating fuse is provided with a second connector, and the relay body is provided with a fourth connector, the fourth connector being electrically connected to the second connector.

[0011] As an optional implementation, electrical connections are also included;

[0012] The heating fuse is provided with a first connector, which is electrically connected to the electrical connector;

[0013] The relay body is provided with a third connector, which is electrically connected to the electrical connector.

[0014] As an optional implementation, the electrical connector is a circuit board.

[0015] As an optional implementation, the depth direction of the mounting cavity is perpendicular to the circuit board.

[0016] As an optional implementation, the heating fuse is arranged perpendicularly to the circuit board, with the first connector located at the end of the heating fuse closer to the circuit board and the second connector located at the end of the heating fuse farther from the circuit board;

[0017] The first end of the fourth connector and the third connector are located at the end of the relay body closer to the circuit board, and the second end of the fourth connector extends toward the end of the relay body away from the circuit board.

[0018] As an optional implementation, the fourth connector is provided with a plug-in portion, and the second connector is plugged into the plug-in portion.

[0019] As an optional implementation, a partition is provided inside the housing, which divides the mounting cavity into a first mounting area and a second mounting area;

[0020] The heating fuse is located in the first installation area, and the relay body is located in the second installation area.

[0021] As an optional implementation, the partition is provided with a connecting port that connects the first installation area and the second installation area.

[0022] As an optional implementation, at least one of the fourth connector and the second connector is disposed within the communication port;

[0023] And / or, the fourth connector and the second connector are connected through the communication port.

[0024] As an optional implementation, at least one of the extension direction, length, and shape of the first connector and the second connector is different;

[0025] And / or, at least one of the extension direction, length, and shape of the third connector and the fourth connector is different.

[0026] As an optional implementation, a limiting part is provided inside the mounting cavity;

[0027] When the heating fuse is located inside the mounting cavity, the limiting part abuts against the outer peripheral surface of the heating fuse.

[0028] As an optional implementation, the limiting part includes a plurality of limiting strips, each of which is spaced apart around the periphery of the heating fuse, and the extending direction of the limiting strips is parallel to the extending direction of the first connector.

[0029] As an optional implementation, the limiting strip is provided with an abutting slope on the side facing the heating fuse, and the abutting slope abuts against the outer peripheral surface of the heating fuse.

[0030] As an optional implementation, the limiting part includes a limiting plate, which is disposed on the housing and located within the mounting cavity;

[0031] When the fourth connector is electrically connected to the second connector, at least one of the fourth connector and the second connector abuts against the surface of the limiting plate.

[0032] As an optional implementation, the limiting part includes a limiting groove formed in the limiting plate, and when the heating fuse is located in the mounting cavity, the heating fuse is embedded in the limiting groove.

[0033] As an optional implementation, the electrical connector is a wire harness.

[0034] As an optional implementation, there may be multiple relay bodies, one of which is connected to the heating fuse.

[0035] As an optional implementation, at least some of the relay bodies are arranged in parallel.

[0036] And / or, at least part of the relay body is vertically disposed.

[0037] Secondly, this application provides a power distribution device, including any of the above-mentioned heating control modules.

[0038] Thirdly, this application provides a battery pack, including any of the above-mentioned heating control modules or any of the above-mentioned power distribution devices.

[0039] Fourthly, this application provides an electrical device including any of the above-mentioned heating control modules;

[0040] And / or, including any of the above-mentioned power distribution devices;

[0041] And / or, including any of the above-mentioned battery packs.

[0042] The heating control module, power distribution device, battery pack, and electrical equipment provided in this application embodiment include a relay and a heating fuse. The relay includes a housing and a relay body. The housing is provided with a mounting cavity, and the heating fuse and the relay body are disposed in the mounting cavity.

[0043] By integrating the thermal fuse into the relay housing, the integration of the heating protection element is effectively improved, saving space costs in the distribution box. This heating control module utilizes the relay housing to achieve electrical isolation of the thermal fuse, reducing wire impedance and electromagnetic interference from the thermal fuse to other conductive components. It eliminates the need for plastic retaining ribs and electrical clearance covers, reducing the number of components in the distribution box, saving material costs, simplifying the production and assembly process, improving production efficiency, and lowering manufacturing costs. Attached Figure Description

[0044] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0045] Figure 1 Schematic diagram of the heating control module provided in the embodiments of this application Figure 1 ;

[0046] Figure 2 for Figure 1 Exploded view;

[0047] Figure 3 for Figure 1 A schematic diagram of the heating control module without its housing;

[0048] Figure 4 for Figure 1 Schematic diagram of the heating control module without the heating fuse Figure 1 ;

[0049] Figure 5 for Figure 1 Schematic diagram of the heating control module without the heating fuse Figure 2 ;

[0050] Figure 6 Schematic diagram of the heating control module provided in the embodiments of this application Figure 2 ;

[0051] Figure 7 for Figure 3 A schematic diagram of the connection structure between the heating fuse and the fourth connector and the limiting plate.

[0052] Explanation of reference numerals in the attached figures:

[0053] 100 - Housing; 101 - Mounting cavity; 1011 - First mounting area; 1012 - Second mounting area;

[0054] 110 - Partition; 111 - Connecting port;

[0055] 120 - Limiting strip; 121 - Abutting slope;

[0056] 130 - Limiting plate; 131 - Limiting groove;

[0057] 200 - Heating fuse;

[0058] 210 - First connector;

[0059] 220 - Second connector;

[0060] 300 - Relay body;

[0061] 310 - Third connector;

[0062] 320 - Fourth connector; 321 - Insertion part;

[0063] 90 - Circuit board.

[0064] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0065] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the embodiments of this application.

[0066] In the embodiments of this application, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly for better describing the embodiments of this application and their implementations, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may also be used in some cases to indicate a certain dependency or connection relationship. For those skilled in the art, the specific meaning of these terms in the embodiments of this application can be understood according to the specific circumstances.

[0067] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0068] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the present application described herein can be implemented, for example, in orders other than those illustrated or described herein.

[0069] In this application, the terms "exemplarily" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplarily" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplarily" or "for example" is intended to present the relevant concepts in a specific manner.

[0070] New energy distribution boxes are crucial in fields such as electric vehicles and energy storage systems. In particular, distribution boxes equipped with heating circuits can achieve precise monitoring and protection of heating circuits and other circuits through a Battery Management System (BMS), ensuring the safe and efficient operation of the system.

[0071] In new energy distribution boxes, the printed circuit board (PCB) is the fundamental hardware component of the battery management system. It supports electronic components, provides electrical connections between various circuit elements, and integrates high-voltage sampling current loops and low-voltage power supply loops. The quality of the PCB design significantly impacts the system's anti-interference capability.

[0072] During circuit board routing, analog and digital circuits should be separated as much as possible to reduce mutual interference. Loop area should be minimized to reduce induced noise. When placing components, traces should be kept as short as possible, and 90-degree bends should be reduced to decrease wire impedance and distributed capacitance and inductance. Simultaneously, the layout should be based on the circuit's function to prevent RF current coupling interference between different areas.

[0073] The battery management system (BMS) of a new energy distribution box has different functions for different applications. Heating relays and heating fuses are key components of the integrated battery management system.

[0074] Both the heating relay and the heating fuse can be wave soldered onto the circuit board. The heating relay and the heating fuse need to be connected in series, and according to design principles, they should be placed as close as possible. Since the heating fuse is wider than the heating relay, it can be horizontally inserted into the circuit board.

[0075] Due to space limitations in the distribution box, there is usually no space left next to the heating relay to place the heating fuse horizontally. In related technologies, the heating fuse is eventually placed away from the heating relay via the main negative relay and the shunt. To meet the electrical clearance requirements of the heating fuse, a tall plastic retaining rib is needed between the heating fuse and the main fuse, and the main negative relay needs to be equipped with an electrical clearance protection cover.

[0076] This setup results in a larger number of parts and a greater amount of plastic used in the distribution box, leading to a heavier weight and more time-consuming assembly. Furthermore, the distance between the heating relay and the heating fuse is too far, making it inconvenient to lay out the wiring and increasing the impedance of the wires.

[0077] To reduce conductor impedance, the heating relay and the heating fuse can be placed in close proximity. However, due to the need to consider electrical clearance, surrounding conductive components must maintain a specified distance from the heating fuse, resulting in some wasted space below and around the heating fuse.

[0078] It is evident that the installation of heating relays and heating fuses in distribution boxes is limited by space and electrical clearance requirements, resulting in insufficient system integration, reduced production efficiency, and increased manufacturing costs.

[0079] In view of this, this application provides a heating control module, a power distribution device, a battery pack, and an electrical device, wherein the heating control module includes a relay and a heating fuse, and the relay includes a housing and a relay body; the housing is provided with a mounting cavity, and the heating fuse and the relay body are disposed in the mounting cavity.

[0080] By integrating the thermal fuse into the relay housing, the integration of the heating protection element is effectively improved, saving space costs. This heating control module utilizes the relay housing to achieve electrical isolation of the thermal fuse, reducing wire impedance and electromagnetic interference from the thermal fuse to other conductive components. It eliminates the need for plastic retaining ribs and electrical clearance covers, reducing the number of parts in the distribution box, saving material costs, simplifying the production and assembly process of the distribution box, improving production efficiency, and lowering manufacturing costs.

[0081] The technical solution of this application will be described in detail below with reference to the accompanying drawings and specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0082] Combination Figures 1 to 4 As shown, the first aspect of this application provides a heating control module, including a relay and a heating fuse 200. The relay includes a housing 100 and a relay body 300. The housing 100 is provided with a mounting cavity 101, and the heating fuse 200 and the relay body 300 are disposed in the mounting cavity 101.

[0083] Understandably, the mounting cavity 101 formed by the housing 100 can provide mounting space for the thermal fuse 200 and the relay body 300, so as to effectively fix the position of the thermal fuse 200 and the relay body 300, protect them from the influence of the external environment, prevent displacement caused by vibration or external force, and ensure their stability within the housing 100.

[0084] By placing the heating fuse 200 inside the relay housing, integrating these two key heating protection components—the heating fuse 200 and the relay—they can be arranged as close as possible, minimizing the heating circuit wiring, conforming to circuit design principles, optimizing circuit layout, reducing wire impedance and distributed capacitance and inductance, which helps improve the system's anti-interference capability and reduce the failure rate of the distribution box.

[0085] Furthermore, the housing 100 can be placed around the heating fuse 200, which can isolate the heating fuse 200 from other conductive components in the surrounding area, providing effective electrical isolation and helping to reduce electromagnetic interference.

[0086] In some embodiments, the heating fuse 200 is vertically disposed within the housing 100.

[0087] Understandably, the extension direction of the heating fuse 200 can be parallel to the depth direction of the mounting cavity 101.

[0088] The heating fuse 200 is vertically installed inside the housing 100, which can effectively utilize the vertical space of the mounting cavity 101, reduce the volume of the housing 100, and thus reduce the overall volume of the heating control module.

[0089] Since hot air can flow more easily in a vertical direction, the heating fuse 200, which is vertically positioned inside the housing 100, can also dissipate heat more effectively.

[0090] In some embodiments, the heating control module further includes an electrical connector. The heating fuse 200 is provided with a first connector 210 and a second connector 220. The first connector 210 is electrically connected to the electrical connector. The relay body 300 is provided with a third connector 310 and a fourth connector 320. The third connector 310 is electrically connected to the electrical connector. The fourth connector 320 is electrically connected to the second connector 220.

[0091] By combining the relay body 300 and the heating fuse 200 and connecting them to the electrical connector to form a heating control module, the integration of the heating protection components can be improved, reducing circuit design time, increasing efficiency, and reducing development costs.

[0092] Since the housing 100 electrically isolates the heating fuse 200 from the outside, it reduces the need for additional insulation design for components near the heating fuse 200. This helps reduce the number of parts in the distribution box, reduce insulation material costs, reduce assembly time, and also reduces the amount of plastic housing and connectors used, thus reducing the weight of the distribution box and lowering raw material and transportation costs.

[0093] In some embodiments, the electrical connector may be a circuit board 90.

[0094] Understandably, in existing integrated distribution boxes, the first connector 210 and the second connector 220 of the thermal fuse 200 both need to be soldered onto the circuit board 90. The relay body 300 has four connectors that need to be connected to the circuit board 90. When the thermal fuse 200 and the relay body 300 are installed on the circuit board 90, a total of six connectors need to be soldered onto the circuit board 90, making the installation process complex and time-consuming.

[0095] The heating control module provided in this application embodiment directly connects the fourth connector 320 of the relay body 300 to the second connector 220 of the heating fuse 200, thereby realizing the series connection of the relay body 300 and the heating fuse 200. This eliminates the need for soldering the two connectors on the circuit board 90, saving manufacturing time for the distribution box.

[0096] Specifically, the heating control module provided in this application embodiment effectively improves the integration of heating protection components and saves space costs by integrating the heating fuse 200 into the relay housing 100 and adopting a direct electrical connection design. This heating control module utilizes the relay housing 100 to achieve electrical isolation of the heating fuse 200, reducing wire impedance and electromagnetic interference from the heating fuse 200 to other conductive components. It eliminates the need for plastic retaining ribs and electrical clearance protection covers, reducing the number of parts in the distribution box, saving material costs, simplifying the production and assembly process of the distribution box, improving production efficiency, and reducing manufacturing costs.

[0097] It should be noted that the embodiments of this application do not limit the types and specifications of relays.

[0098] For example, the relay could be a heating relay.

[0099] For example, the relay can be a small-sized relay with a power rating between a few watts and tens of watts, commonly used in integrated distribution boxes. These relays are characterized by their small size, light weight, and ease of installation, making them suitable for integration into circuit board 90 and pre-connection to circuit board 90.

[0100] It should be noted that the housing 100 can be arranged parallel to the circuit board 90, or the housing 100 can be arranged perpendicular to the circuit board.

[0101] Specifically, the relative position between the housing 100 and the circuit board 90 can be flexibly set according to the specific installation environment of the heating control module, and this embodiment does not impose any restrictions on this.

[0102] Combination Figure 1 , Figure 2 and Figure 5 As shown, preferably, the depth direction of the mounting cavity 101 is perpendicular to the circuit board 90.

[0103] It should be noted that the extension direction of the housing 100 is... Figure 5 The Z-direction is parallel, and both ends of the housing 100 extending in the direction of extension can be provided with openings. The two ends of the mounting cavity 101 in the depth direction are respectively connected to the openings, and the mounting cavity 101 can be connected to the outside through the openings. This configuration allows the first connector 210 of the heating fuse 200 and the third connector 310 of the relay body 300, which are located in the mounting cavity 101, to extend out of the housing 100 and be electrically connected to the electrical connectors.

[0104] It is understandable that the depth direction of the mounting cavity 101 is consistent with the extension direction of the housing 100, and the depth direction of the mounting cavity 101 is set perpendicular to the circuit board 90, that is, the extension direction of the housing 100 is perpendicular to the plane where the circuit board 90 is located.

[0105] This configuration effectively utilizes the vertical space of the circuit board 90, reduces the horizontal space occupied on the circuit board 90, and allows other components to have more space to be arranged on the circuit board 90.

[0106] Furthermore, the vertically positioned mounting cavity 101, the heating fuse 200, and the relay body 300 can be positioned closer to the circuit board, and the lengths of the first connector 210 and the third connector 310 used for electrical connection can be shortened, thereby reducing wire impedance and electromagnetic interference.

[0107] Furthermore, since hot air can flow more easily in a direction perpendicular to the circuit board 90, the vertically arranged mounting cavity 101 can promote natural convection heat dissipation, which helps to improve the thermal management efficiency of the system and prevent the components located inside the mounting cavity 101 from overheating.

[0108] In some embodiments, the thermal fuse 200 is arranged perpendicularly to the circuit board 90, the first connector 210 is located at the end of the thermal fuse 200 close to the circuit board 90, and the second connector 220 is located at the end of the thermal fuse 200 away from the circuit board 90.

[0109] The first end of the fourth connector 320 and the third connector 310 are located at the end of the relay body 300 near the circuit board 90, and the second end of the fourth connector 320 extends toward the end of the relay body 300 away from the circuit board 90.

[0110] Understandably, in conventional integrated distribution box designs, the lateral length of the thermal fuse 200 is greater than that of the relay body 300. Due to the larger lateral dimensions of the thermal fuse 200 and its uninsulated surface, the distribution box design must adhere to electrical clearance design specifications, resulting in significant wasted space around the thermal fuse 200 and below the relay.

[0111] By vertically positioning the thermal fuse 200 relative to the circuit board 90, the space below the thermal fuse 200 and the relay can be fully utilized, thereby reducing the lateral space required for installing the thermal fuse 200 and the distance between the thermal fuse 200 and other components. This also makes full use of the space around the thermal fuse 200, resulting in a more compact structure and a smaller volume of the distribution box.

[0112] The first connector 210 is located at the end of the thermal fuse 200 near the circuit board 90, and the third connector 310 is located at the end of the relay body 300 near the circuit board 90. This can shorten the electrical connection path, reduce the length of the wires, thereby reducing the resistance and inductance of the wires and helping to improve electrical performance.

[0113] The second ends of both the second connector 220 and the fourth connector 320 extend toward the end of the relay body 300 away from the circuit board 90, which facilitates a direct electrical connection between the two, so as to realize the series connection between the relay body 300 and the thermal fuse 200.

[0114] Combination Figure 3 As shown, in some embodiments, the fourth connector 320 is provided with a plug portion 321, and the second connector 220 is inserted into the plug portion 321.

[0115] Understandably, the plug-in part 321 provides a connection interface, allowing the fourth connector 320 of the relay body 300 to be directly plugged into the second connector 220 of the thermal fuse 200.

[0116] This plug-in connection method not only simplifies the electrical connection process between the relay body 300 and the thermal fuse 200, but also reduces the time and process complexity required for welding or other fixing methods, thereby improving production efficiency. Furthermore, the plug-in connection provides a reliable electrical connection, reduces contact resistance, and improves the electrical performance of the system.

[0117] By inserting the second connector 220 of the thermal fuse 200 into the connector 321 of the relay body 300, a fast and reliable electrical connection between the relay body 300 and the thermal fuse 200 is achieved. It also allows for quick disassembly and replacement of components when needed, facilitating maintenance and repair.

[0118] For example, the plug portion 321 can be a socket, and the second connector 220 can be inserted into the socket to achieve an electrical connection.

[0119] The plug-in part 321 can also be any other structure that can be plugged into the second connector 220, as long as it can be plugged into the second connector 220 to achieve electrical connection. This application embodiment does not limit this.

[0120] Combination Figure 3 As shown, in some embodiments, the plug portion 321 is a connector bar provided with bare terminals.

[0121] It should be noted that bare terminals, also known as bare crimp terminals or bare wiring terminals, generally refer to terminals whose crimped parts do not have any insulating material. Bare terminals are usually made of metal, such as copper or aluminum, and are used to make electrical connections in an exposed state.

[0122] The bare terminals of the connector and the second connector 220 are plugged into each other to connect the thermal fuse 200 and the relay body 300. No additional connectors or welding are required, which simplifies the connection structure of the two components and makes disassembly and assembly more convenient.

[0123] It is understandable that both the heating fuse 200 and the relay body 300 have a certain service life. When the distribution box malfunctions, the above connection method can facilitate maintenance, greatly reduce disassembly time, reduce the degree of damage to components, and facilitate the analysis of the cause of the fault.

[0124] For example, in this embodiment of the application, the fourth connector 320 of the relay body 300 and the bare terminal can be integrated.

[0125] In other embodiments, the fourth connector 320 is welded to the second connector 220.

[0126] Understandably, welding is a common method of electrical connection, achieving a permanent connection by melting metal. Compared to plug-in connections, welding offers higher mechanical strength and lower contact resistance.

[0127] For example, the second connector 220 of the thermal fuse 200 and the fourth connector 320 of the relay body 300 can be electrically connected by spot welding.

[0128] By welding the fourth connector 320 to the second connector 220, the risk of poor contact due to vibration or external forces is reduced, improving the reliability of the connection. Furthermore, welding also prevents oxidation and corrosion from affecting the connection point, further enhancing the stability of the electrical connection.

[0129] Furthermore, the welding connection method eliminates the need for bare terminals, thereby eliminating the space required for setting bare terminals. As a result, the volume of the housing 100 can be further reduced, and the volume of the heating control module can also be reduced, which helps to adapt to the smaller installation space in the distribution box.

[0130] Combination Figure 2 As shown, in some embodiments, a partition 110 is provided inside the housing 100, which divides the mounting cavity 101 into a first mounting area 1011 and a second mounting area 1012; a heating fuse 200 is disposed in the first mounting area 1011, and a relay body 300 is disposed in the second mounting area 1012.

[0131] A partition 110 is installed inside the housing 100 to physically separate different electrical components, preventing electromagnetic interference and heat conduction between them. This physical isolation helps reduce coupling effects between components and ensures the independent operation of each component.

[0132] By dividing the mounting cavity 101 into two areas, it is ensured that the thermal fuse 200 and the relay body 300 have sufficient space for heat dissipation and operation in their respective areas, reducing mutual interference between components and improving the reliability and efficiency of the system.

[0133] Understandably, in traditional designs, the two connectors of the thermal fuse 200 and the four connectors of the relay, a total of six connectors, need to be soldered onto the circuit board.

[0134] In some embodiments of this application, the first connector 210 of the heating fuse 200 is connected to the circuit board 90, and the first connector 210 may be located on top of the relatively lightweight heating fuse 200.

[0135] The third connector 310 of the relay body 300 is connected to the circuit board 90. The third connector 310 may include one high-voltage connector and two low-voltage connectors, or two high-voltage connectors and one low-voltage connector. The three connectors are located on the top of the relatively heavy relay body 300.

[0136] With this configuration, the thermal fuse 200 and the relay body 300 have a total of four connectors that need to be connected to the circuit board 90, which can reduce the number of soldering operations and lower the difficulty of connecting the thermal fuse 200 and the relay body 300 to the circuit board 90.

[0137] After the connectors are soldered to the circuit board 90, the force is evenly distributed at each connector location, which makes the center of gravity of the thermal fuse 200 and the relay body 300 more stable.

[0138] It should be noted that the high-voltage and low-voltage terminals of a relay are related to its voltage and current carrying capacity. The high-voltage terminal can withstand higher voltages and currents, while the low-voltage terminal can withstand lower voltages and currents.

[0139] The fourth connector 320 of the relay body 300 can be a high-voltage connector or a low-voltage connector, and the fourth connector 320 is directly electrically connected to the second connector 220 of the thermal fuse 200.

[0140] It should be noted that when connecting the thermal fuse 200 and the relay body 300, the connection can be made to either the high-voltage terminal or the low-voltage terminal of the relay body 300, depending on the voltage level and protection requirements. For example, if the thermal fuse 200 is required for a high-voltage heating circuit, it should be connected to the high-voltage terminal of the relay body 300; if the thermal fuse 200 is required for a low-voltage heating circuit, it should be connected to the low-voltage terminal of the relay body 300.

[0141] In some embodiments, a buffer pad may be provided at the end of the housing 100 away from the circuit board 90 to withstand the impact and vibration generated during actual vehicle operation, thereby improving the reliability of the heating control module.

[0142] Combination Figure 2 and Figure 4As shown, in some embodiments, the partition 110 is provided with a communication port 111, which connects the first mounting area 1011 and the second mounting area 1012.

[0143] A connection port 111 is provided on the partition 110 to provide a flexible connection channel between the heating fuse 200 and the relay body 300.

[0144] This design allows for electrical connections when needed, such as via wires or other connectors, and can also be used for airflow exchange to aid in heat dissipation. This flexibility helps achieve necessary functional integration while maintaining component isolation.

[0145] In some embodiments, at least one of the fourth connector 320 and the second connector 220 is disposed within the communication port 111, and the fourth connector 320 and the second connector 220 are connected through the communication port 111.

[0146] By placing the fourth connector 320 or the second connector 220 within the communication port 111, the communication port 111 can be directly used as a channel for electrical connections, achieving a compact electrical connection layout. This reduces the distance between connectors, thereby lowering wire impedance and electromagnetic interference. Furthermore, this design allows for a more compact electrical connection, saving space and improving the integration of the heating control module.

[0147] In some embodiments, at least one of the extension direction, length, and shape of the first connector 210 and the second connector 220 is different.

[0148] Understandably, connectors of different lengths can accommodate different installation needs. For example, longer connectors can pass through thicker circuit boards or other structural components, while shorter connectors are suitable for more compact installation environments.

[0149] Furthermore, the difference in connector length can help optimize the path of electrical connections and achieve physical isolation, reduce unnecessary resistance and inductance effects, reduce the risk of short circuits, and improve the electrical performance of the system, especially in high-voltage applications.

[0150] Connectors extending in different directions can also adapt to different installation requirements. For example, a connector extending toward circuit board 90 can be directly connected to circuit board 90, while a connector extending away from circuit board 90 can be directly connected to the fourth connector 320.

[0151] The different lengths of the connectors also serve as a foolproof feature. When assembling the thermal fuse 200, if the positions of the first connector 210 and the second connector 220 are interchanged, the main body of the thermal fuse 200 cannot be fully inserted into the housing 100, or cannot be properly connected to the circuit board 90 or the fourth connector 320. This achieves good assemblability and helps prevent incorrect installation of the thermal fuse 200.

[0152] Setting the first connector 210 and the second connector 220 to have different extension directions or different shapes also serves as a foolproof method, allowing operators to quickly identify them and ensure the correct installation of the heating fuse 200.

[0153] Specifically, by controlling the extension direction, length, and shape of the first connector 210 and the second connector 220, greater installation and connection flexibility is provided, enabling adaptation to diverse application requirements. Furthermore, the difference in connector length not only optimizes the layout of electrical connections and improves the electrical performance of the system, but also enhances the system's safety and reliability.

[0154] For example, in the extending direction of the first connector 210, the length of the first connector 210 is greater than the length of the second connector 220;

[0155] The longer first connector 210 helps ensure stable contact with the circuit board 90 during installation, helps provide additional mechanical support, enhances the physical stability of the component, and reduces poor connection due to vibration or external forces.

[0156] In some embodiments, at least one of the extension direction, length, and shape of the third connector 310 and the fourth connector 320 is different.

[0157] Similar to the arrangement of the first connector 210 and the second connector 220, the third connector 310 and the fourth connector 320 also have a foolproof function by controlling their extension direction, length and shape.

[0158] When assembling the relay body 300, if the positions of the third connector 310 and the fourth connector 320 are interchanged, the relay body 300 cannot be fully inserted into the housing 100, or cannot be properly connected to the circuit board 90 or the second connector 220. This design achieves good assemblability and helps prevent incorrect installation of the relay body 300.

[0159] Combination Figure 4 As shown, in some embodiments, a limiting part is provided in the mounting cavity 101; when the heating fuse 200 is located in the mounting cavity 101, the limiting part abuts against the outer peripheral surface of the heating fuse 200.

[0160] Understandably, the setting of the limiting part can ensure the correct positioning and fixation of the heating fuse 200 in the mounting cavity 101, and prevent it from shifting during use or transportation.

[0161] Specifically, by abutting against the outer peripheral surface of the heating fuse 200, the limiting part can ensure its accurate positioning within the mounting cavity 101, which helps to quickly and accurately place the heating fuse 200 during installation and prevents the heating fuse 200 from being installed incorrectly in the wrong position.

[0162] The limiting part also provides additional mechanical support to prevent the heating fuse 200 from shifting or loosening under vibration or external force, thereby improving the reliability and safety of the heating control module.

[0163] In some embodiments, the limiting portion includes a plurality of limiting strips 120, each limiting strip 120 being spaced apart on the periphery of the heating fuse 200, at least two limiting strips 120 being disposed opposite to each other, and the extending direction of the limiting strips 120 being parallel to the extending direction of the first connector 210.

[0164] It should be noted that the extension direction of the first connector 210 is perpendicular to the plane where the circuit board 90 is located.

[0165] Multiple limiting strips 120 can provide support in multiple directions, preventing the heating fuse 200 from shifting in multiple directions within the mounting cavity 101. Furthermore, the presence of multiple limiting strips 120 can effectively disperse external forces, reduce pressure on a single support point, and improve the overall stability and durability of the structure.

[0166] For example, at least two limiting strips 120 are arranged opposite each other. For instance, the two limiting strips 120 may be located at a pair of corners of the first mounting area 1011, and the two limiting strips 120 can provide support from the opposite side of the heating fuse 200, thereby ensuring the stability of the position of the heating fuse 200.

[0167] Specifically, by setting multiple limiting strips 120 and extending them perpendicular to the plane of the circuit board 90, uniform and stable support and positioning are provided for the heating fuse 200. This not only improves the fixation and stability of the heating fuse 200 in the mounting cavity 101, but also simplifies the installation process, provides installation guidance, and reduces the risk of misinstallation and displacement.

[0168] In some embodiments, the limiting part may include a limiting block, which may be disposed on the inner wall of the mounting cavity 101, and the side of the limiting block away from the inner wall of the mounting cavity 101 abuts against the heating fuse 200, so that the circumferential upward position of the heating fuse 200 is stable, and the heating fuse 200 is prevented from shaking in the mounting cavity 101 during transportation or use.

[0169] In some embodiments, the limiting strip 120 is provided with an abutting slope 121 on the side facing the heating fuse 200, and the abutting slope 121 abuts against the outer peripheral surface of the heating fuse 200.

[0170] Understandably, the abutment ramp 121 provides a gradual support method, reducing the impact force from direct contact. Furthermore, the abutment ramp 121 design guides the heating fuse 200 into the correct position during installation, reducing alignment difficulties.

[0171] By providing an abutting slope 121 on the limiting strip 120 facing the heating fuse 200, the guiding and buffering function of the abutting slope 121 can reduce installation errors and mechanical stress, which not only helps to simplify the installation process and improve installation efficiency, but also provides more stable and gentle support.

[0172] Combination Figure 4 and Figure 7 As shown, in some embodiments, the limiting part includes a limiting plate 130, which is disposed in the housing 100 and located in the mounting cavity 101; when the fourth connector 320 is electrically connected to the second connector 220, at least one of the fourth connector 320 and the second connector 220 abuts against the surface of the limiting plate 130.

[0173] In the depth direction of the mounting cavity 101, the limiting plate 130 may be located at one end of the mounting cavity 101 away from the circuit board 90 to provide a sealing effect. At least one of the fourth connector 320 and the second connector 220 abuts against the surface of the limiting plate 130 facing the mounting cavity 101.

[0174] The limiting plate 130 can provide support for the fourth connector 320, so that the position of the fourth connector 320 of the relay body 300 is stable, and the insertion accuracy of the second connector 220 and the fourth connector 320 is guaranteed.

[0175] The limiting plate 130 can provide support for the second connector 220, so that the position of the second connector 220 of the heating fuse 200 is stable, thereby improving the connection stability of the second connector 220 and the fourth connector 320.

[0176] Furthermore, the limiting plate 130 also provides support for the connection structure after the fourth connector 320 and the second connector 220 are connected, preventing possible displacement or loosening during transportation and use. In addition, the limiting plate 130 also provides electrical isolation, achieving insulation between the fourth connector 320 and the second connector 220 and the outside.

[0177] It should be noted that both the housing 100 and the limiting plate 130 are made of insulating material.

[0178] For example, the limiting plate 130 can be a plastic plate. By providing a plastic plate at one end of the mounting cavity 101 away from the circuit board 90, the connection structure between the fourth connector 320 and the second connector 220 is limited and electrically protected. At the same time, the heating fuse 200 can be better positioned and supported, preventing the heating fuse 200 from shifting.

[0179] In some embodiments, the limiting part includes a limiting groove 131 formed in the limiting plate 130, and when the heating fuse 200 is located in the mounting cavity 101, the heating fuse 200 is embedded in the limiting groove 131.

[0180] Understandably, the limiting groove 131 can provide a clear installation position for the heating fuse 200, ensuring its accurate positioning within the mounting cavity 101 and reducing installation errors.

[0181] Furthermore, the heating fuse 200 embedded in the limiting groove 131 is supported in multiple directions, which can prevent the heating fuse 200 from shifting or shaking during use, thus improving reliability.

[0182] In some embodiments, the electrical connector is a wire harness.

[0183] As is understandable, a wire harness is an assembly of multiple wires or cables, typically used to achieve electrical connections between internal or external components of electronic devices. Wire harnesses are characterized by high flexibility and ease of connection, making them suitable for applications requiring frequent movement or adjustment of connections.

[0184] When the heating control module is used in a non-integrated distribution box, due to the different structure and component layout, the relay body 300 or the heating fuse 200 can be connected using a wiring harness.

[0185] Combination Figure 5 and Figure 6 As shown, in some embodiments, there are multiple relay bodies 300, one of which is connected to the thermal fuse 200.

[0186] Understandably, the shape of the housing 100, as well as the arrangement and number of components within the housing 100, can be changed to integrate more relay bodies 300 together.

[0187] For example, some relay bodies 300 can be pre-charged relays, and some relay bodies 300 can be heating relays. It should be noted that the relay body 300 directly electrically connected to the heating fuse 200 is a heating relay, and the relay body 300 electrically connected to the heating fuse 200 is arranged adjacent to the heating fuse 200.

[0188] By increasing the number of relay bodies 300 within the housing 100, the pre-charge relay, heating relay, and heating fuse 200 can be integrated into a single design, reducing the number of parts in the distribution box and the amount of plastic housing used for the pre-charge relay, thereby lowering raw material and assembly costs.

[0189] It should be noted that different models of heating relays, heating fuses 200, and pre-charge relays can be selected based on the specific components of the distribution box.

[0190] Combination Figure 5 and Figure 6 As shown, in some embodiments, among the plurality of relay bodies 300, at least some of the relay bodies 300 are arranged in parallel, and / or at least some of the relay bodies 300 are arranged in perpendicular.

[0191] It should be noted that the extension direction of at least part of the relay body 300 can be the same as the extension direction of the housing 100. Figure 5 The Z-direction is parallel to the extension direction of the relay body 300; at least part of the extension direction of the relay body 300 may be parallel to the extension direction of the housing 100. Figure 5 (Z direction) is perpendicular.

[0192] Among them, the relay body 300 parallel to the extension direction of the housing 100 and the relay body 300 perpendicular to the extension direction of the housing 100 are arranged perpendicularly to each other; the relay bodies 300 parallel to the extension direction of the housing 100 are arranged parallel to each other; and the relay bodies 300 perpendicular to the extension direction of the housing 100 are arranged parallel to each other.

[0193] Of course, the orientation of the relay body 300 can be flexibly set according to actual design requirements. For example, the extension direction of all relay bodies 300 can be the same as the extension direction of the housing 100. Figure 5 The Z-direction is parallel to the extension direction of the housing 100, or the extension direction of all relay bodies 300 can be parallel to the extension direction of the housing 100. Figure 5 The Z-axis is perpendicular to the Z-axis. This application does not impose any limitations on this aspect in its embodiments.

[0194] Specifically, the parallel arrangement of the relay bodies 300 optimizes space utilization, simplifies wiring, makes electrical connection paths more direct and concise, reduces wiring complexity and length, makes component replacement and maintenance more convenient, and helps improve the maintainability and expandability of the heating control module.

[0195] The vertically positioned relay body 300 can reduce electromagnetic coupling between various components, reduce electromagnetic interference, and thus improve the electromagnetic compatibility of the heating control module.

[0196] Furthermore, the relay body 300 is arranged vertically and / or horizontally, which enables flexible layout of the relay body 300 and the heating fuse 200 within the mounting cavity 101, providing greater design freedom and making it easier for the heating control module to adapt to different installation requirements.

[0197] Combination Figure 5 As shown, in some embodiments, in the plane where the circuit board 90 is located, a plurality of relay bodies 300 are spaced apart along a first direction, and the relay bodies 300 and the heating fuse 200 connected to the heating fuse 200 are spaced apart along a second direction; the first direction and the second direction are perpendicular.

[0198] Understandable, the first direction and Figure 5 Parallel to the Y-axis, the second direction is parallel to... Figure 5 The X-axis is parallel to it.

[0199] By setting the layout direction of multiple relay bodies 300 perpendicular to the layout direction of the relay bodies 300 and the thermal fuse 200, the area of ​​the circuit board 90 can be maximized, making it suitable for distribution boxes that require a compact design.

[0200] Combination Figure 6 As shown, in some other embodiments, the first direction and the second direction are parallel.

[0201] Understandably, both the first and second directions are... Figure 6 The X-axis is parallel to it.

[0202] With this configuration, multiple relay bodies 300 and thermal fuses 200 are distributed in a straight line, which is more suitable for linear or modular system architectures and facilitates expansion and maintenance.

[0203] Specifically, by strategically distributing the relay bodies 300 and thermal fuses 200 at appropriate intervals within the 90-degree plane of the circuit board, and selecting suitable placement directions, electromagnetic compatibility and thermal management are optimized, improving overall performance and reliability. Simultaneously, the flexible layout scheme offers the possibility of adapting to different application requirements, enhancing the maintainability and expandability of the distribution box.

[0204] A second aspect of this application provides a power distribution device, including the heating control module provided in any of the above embodiments.

[0205] The heating control module has been described in detail in the above embodiments and will not be repeated here.

[0206] For example, the power distribution device may be a distribution box.

[0207] The distribution box can be an integrated distribution box or a non-integrated distribution box, i.e., a traditional distribution box.

[0208] When the distribution box is an integrated distribution box, it typically consists of relays, fuses, plastic parts, a battery management system, etc. The heating control module is a component of the battery management system.

[0209] When the power distribution device is a non-integrated distribution box, the relay body 300 or the heating fuse 200 can be externally connected by a wire harness instead of a circuit board 90. The fixing method of the heating control module can also be changed according to the actual situation. For example, it can be fixed by plastic clips or bolts.

[0210] This application provides a battery pack in three aspects, including a heating control module provided in any of the above embodiments, or a power distribution device provided in any of the above embodiments.

[0211] The heating control module and power distribution device have been described in detail in the above embodiments and will not be repeated here.

[0212] This application provides an electrical device in four aspects, including a heating control module provided in any of the above embodiments, a power distribution device provided in any of the above embodiments, or a battery pack provided in any of the above embodiments.

[0213] The heating control module, power distribution device, and battery pack have been described in detail in the above embodiments and will not be repeated here.

[0214] For example, electrical equipment can be a new energy vehicle.

[0215] In summary, the heating control module, power distribution device, battery pack, and electrical equipment provided in this application embodiment combine the relay body 300 and the heating fuse 200 by changing the relay housing. By housing the relay body 300 and the heating fuse 200 within the relay housing 100, the heating fuse 200 can be protected by the housing 100, reducing the space required for its installation and making the distribution box structure more compact. Simultaneously, it optimizes the circuit layout of the circuit board 90. Utilizing the relay housing 100 to achieve electrical isolation of the heating fuse helps reduce circuit impedance and improves the anti-interference capability of the battery management system.

[0216] Furthermore, the integration of the relay and thermal fuse 200 helps reduce the number of assembled parts in the battery management system and the number of soldered tabs on the circuit board 90, thereby reducing the number of parts in the distribution box and the assembly difficulty, improving assembly efficiency, and reducing costs.

[0217] Finally, it should be noted that those skilled in the art, upon considering the specification and practicing the application disclosed herein, will readily conceive of other embodiments of the present application. The embodiments of this application are intended to cover any variations, uses, or adaptations of the embodiments of this application that follow the general principles of the embodiments of this application and include common knowledge or customary technical means in the art not disclosed in the embodiments of this application. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of the embodiments of this application are indicated by the following claims.

[0218] It should be understood that the embodiments of this application are not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from their scope. The scope of the embodiments of this application is limited only by the appended claims.

Claims

1. A heating control module, characterized in that, Includes a relay and a thermal fuse (200), the relay including a housing (100) and a relay body (300); The housing (100) is provided with a mounting cavity (101), and the heating fuse (200) and the relay body (300) are disposed in the mounting cavity (101).

2. The heating control module according to claim 1, characterized in that, The heating fuse (200) is vertically arranged inside the housing (100).

3. The heating control module according to claim 1 or 2, characterized in that, The heating fuse (200) is provided with a second connector (220), and the relay body (300) is provided with a fourth connector (320), which is electrically connected to the second connector (220).

4. The heating control module according to claim 3, characterized in that, It also includes electrical connections; The heating fuse (200) is provided with a first connector (210), which is electrically connected to the electrical connector; The relay body (300) is provided with a third connector (310), which is electrically connected to the electrical connector.

5. The heating control module according to claim 4, characterized in that, The electrical connector is a circuit board (90).

6. The heating control module according to claim 5, characterized in that, The depth direction of the mounting cavity (101) is perpendicular to the circuit board (90).

7. The heating control module according to claim 6, characterized in that, The heating fuse (200) is perpendicular to the circuit board (90), the first connector (210) is located at the end of the heating fuse (200) closer to the circuit board (90), and the second connector (220) is located at the end of the heating fuse (200) away from the circuit board (90); The first end of the fourth connector (320) and the third connector (310) are located at one end of the relay body (300) near the circuit board (90), and the second end of the fourth connector (320) extends toward the end of the relay body (300) away from the circuit board (90).

8. The heating control module according to claim 3, characterized in that, The fourth connector (320) is provided with a plug-in portion (321), and the second connector (220) is inserted into the plug-in portion (321).

9. The heating control module according to claim 3, characterized in that, A partition (110) is provided inside the housing (100), and the partition (110) divides the mounting cavity (101) into a first mounting area (1011) and a second mounting area (1012); The heating fuse (200) is located in the first installation area (1011), and the relay body (300) is located in the second installation area (1012).

10. The heating control module according to claim 9, characterized in that, The partition (110) is provided with a communication port (111), which connects the first installation area (1011) and the second installation area (1012).

11. The heating control module according to claim 10, characterized in that, At least one of the fourth connector (320) and the second connector (220) is disposed within the communication port (111); And / or, the fourth connector (320) and the second connector (220) are connected through the communication port (111).

12. The heating control module according to claim 4, characterized in that, At least one of the extension direction, length, and shape of the first connector (210) and the second connector (220) is different; And / or, at least one of the extension direction, length and shape of the third connector (310) and the fourth connector (320) is different.

13. The heating control module according to claim 4, characterized in that, A limiting part is provided inside the mounting cavity (101); When the heating fuse (200) is located in the mounting cavity (101), the limiting part abuts against the outer peripheral surface of the heating fuse (200).

14. The heating control module according to claim 13, characterized in that, The limiting part includes a plurality of limiting strips (120), each of the limiting strips (120) being spaced apart on the periphery of the heating fuse (200), and the extending direction of the limiting strips (120) being parallel to the extending direction of the first connector (210).

15. The heating control module according to claim 14, characterized in that, The limiting strip (120) has an abutting slope (121) on the side facing the heating fuse (200), and the abutting slope (121) abuts against the outer peripheral surface of the heating fuse (200).

16. The heating control module according to claim 13, characterized in that, The limiting part includes a limiting plate (130), which is disposed on the housing (100) and located in the mounting cavity (101); When the fourth connector (320) is electrically connected to the second connector (220), at least one of the fourth connector (320) and the second connector (220) abuts against the surface of the limiting plate (130).

17. The heating control module according to claim 16, characterized in that, The limiting part includes a limiting groove (131) formed in the limiting plate (130). When the heating fuse (200) is located in the mounting cavity (101), the heating fuse (200) is embedded in the limiting groove (131).

18. The heating control module according to claim 4, characterized in that, The electrical connector is a wire harness.

19. The heating control module according to claim 1 or 2, characterized in that, The number of relay bodies (300) is multiple, and one of the relay bodies (300) is connected to the thermal fuse (200).

20. The heating control module according to claim 19, characterized in that, Of the plurality of relay bodies (300), at least some of the relay bodies (300) are arranged in parallel; And / or, at least part of the relay body (300) is vertically disposed.

21. A power distribution device, characterized in that, Includes the heating control module as described in any one of claims 1-20.

22. A battery pack, characterized in that, It includes the heating control module as described in any one of claims 1-20; or the power distribution device as described in claim 21.

23. An electrical appliance, characterized in that, Includes the heating control module as described in any one of claims 1-20; Alternatively, it may include the power distribution device as described in claim 21; Alternatively, it may include the battery pack as described in claim 22.

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