High-voltage electric connection composite integrated piece

Abstract

The invention provides a high-voltage electric connection composite integrated piece, and relates to the technical field of high-voltage electric connection. The high-voltage electric connection composite integrated piece is provided with a mounting base material and a high-voltage connecting part, the mounting base material is used for fixing the high-voltage electric connection composite integrated piece to a mounting position, the high-voltage connecting part is provided with a high-voltage connecting end and a high-voltage leading-out end, the high-voltage connecting end is used for being electrically connected with the battery cell cluster, and the high-voltage leading-out end at least comprises a charging leading-out end and a discharging leading-out end; wherein the high-voltage electric connection composite integrated piece is integrally formed. By applying the technical scheme, the high-voltage connecting part is integrally formed on the mounting base material, so that the high-voltage connecting part can be prevented from being wound on the peripheries of the battery system and the mounting base material, the space of the mounting base material can be further saved, the space of the battery system is further saved, and the overall space utilization rate is improved; and the cost and the safety risk which are increased by multiple times of bending of the high-voltage connecting part are also avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of high-voltage electrical connection, and in particular to a high-voltage electrical connection composite integral part. Background Art

[0002] With the increasing requirements for the integration of power batteries, the battery power management system and signal processing system are gradually integrated with the on-board power battery box. Due to the need for connection integration, the market mostly uses die-casting or sheet metal stamping integrated structure integration to assemble and integrate high-voltage power and signal component modules. The power control module unit and the signal connection module unit require additional assembly, which consumes a lot of man-hours and material costs, has low production efficiency, low space utilization, and high subsequent maintenance costs and is difficult to repair. In the case of tight space, sufficient space needs to be provided for installation, and the energy density and power of the battery are limited, and the space cannot be effectively utilized.

[0003] In the prior art, a metal bracket is usually directly and independently connected to the box of the battery system to ensure the stability of the battery system during operation. This solution requires an independent fixed installation point of the bracket on the metal bracket, and the risks of electrical installation distance and creepage distance must also be considered. For battery systems in non-static environments, the risks of torque attenuation or fastener slippage, superimposed fatigue fracture, etc. during vibration of the bracket must also be considered. It is easy for the bracket to fall off and short-circuit the high-voltage connector, leading to high-voltage safety accidents and thermal runaway accidents. At the same time, the metal bracket itself has a high material density and weight. Its processing and forming needs to consider factors such as the installation surface, angle, shape, strength, rigidity, and the difficulty and complexity of mold processing, so that it occupies too much space and still cannot meet various requirements, increasing the design and manufacturing costs and subsequent maintenance costs.

[0004] To address the above problems, no effective solution has been proposed yet. Summary of the invention

[0005] The main purpose of the present invention is to provide a high-voltage electrical connection composite integrated part to solve or improve the problems of low safety and reliability of metal brackets and high design and maintenance costs in the prior art.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a high-voltage electrical connection composite integrated part is provided, the high-voltage electrical connection composite integrated part has an installation substrate and a high-voltage connection part, the installation substrate is used to fix the high-voltage electrical connection composite integrated part to the installation position, the high-voltage connection part has a high-voltage connection end and a high-voltage lead-out end, the high-voltage connection end is used to electrically connect to the battery cell cluster, the high-voltage lead-out end includes at least a charging lead-out end and a discharging lead-out end, wherein the high-voltage electrical connection composite integrated part is integrally formed.

[0007] Furthermore, the mounting substrate has a first working surface and a second working surface arranged opposite to each other along a first preset direction, wherein the high-voltage connection portion is arranged on the first working surface, and the high-voltage connection portion and the mounting substrate are integrally formed by a hot pressing process.

[0008] Furthermore, a fixing groove is opened on the first working surface, at least a part of the high-voltage connecting part is embedded in the fixing groove, and the high-voltage connecting end and the high-voltage lead-out end are both located outside the fixing groove.

[0009] Furthermore, an end surface of the high-voltage connection portion away from the second working surface is arranged flush with the first working surface.

[0010] Furthermore, a connection groove is provided on the second working surface, and the connection groove is used to accommodate at least part of the control main board, and the control main board is the control main board of the automobile power battery.

[0011] Furthermore, a plurality of connection protrusions are arranged on the first working surface, and the connection protrusions are used to connect with high-voltage components.

[0012] Furthermore, a heat dissipation structure is arranged on the first working surface.

[0013] Furthermore, the heat dissipation structure is a heat dissipation pattern.

[0014] Furthermore, a power management module and an electrical connection module are provided on the first working surface, and the power management module and the high-voltage components transmit signals through the electrical connection module, and any two high-voltage components transmit signals through the electrical connection module.

[0015] Furthermore, the installation substrate includes a supporting portion, which includes a high-voltage lead-out section and a main body section arranged adjacent to each other along a second preset direction, and a connecting protrusion, a power management module and an electrical connection module are arranged on the main body section. Part of the high-voltage connecting portion is arranged on the main body section, and another part of the high-voltage connecting portion is arranged on the high-voltage lead-out section. The high-voltage connecting end and the high-voltage lead-out end of the high-voltage connecting portion protrude from the installation substrate along a third preset direction.

[0016] Furthermore, the high-voltage electrical connection composite integrated part also includes: a composite upper cover, the composite upper cover having a covering position connected to the installation substrate, and the composite upper cover having an open position separated from the installation substrate, when the composite upper cover is in the covering position, the composite upper cover and the installation substrate are covered to form a accommodating cavity, and the connecting protrusion, the power management module and the electrical connection module are all located in the accommodating cavity.

[0017] Furthermore, the installation substrate also includes an installation portion, through which the installation substrate is fixed to the installation position, the installation portion is provided with a plurality of hollow portions arranged at intervals along a third preset direction, at least one hollow portion is provided with a reinforcement structure, the reinforcement structure includes a metal reinforcement layer and an insulating layer coated on the surface of the metal reinforcement layer.

[0018] Furthermore, the mounting substrate is made of insulating material.

[0019] By applying the technical solution of the present invention, the high-voltage connecting part is integrally formed on the installation substrate, so that the high-voltage connecting end of the high-voltage connecting part is connected to the battery cell cluster of the battery system, and the high-voltage lead-out terminal is respectively connected to the external electrical equipment or charging equipment through the charging lead-out terminal and the discharging lead-out terminal to realize the connection of the battery system with the external equipment through the high-voltage connecting part. After the high-voltage connecting part and the installation substrate are integrally formed, it is possible to avoid winding the high-voltage connecting part around the periphery of the battery system and the installation substrate, which can further save the space of the installation substrate, thereby saving the space of the battery system, improving the overall space utilization rate, and avoiding multiple bending of the high-voltage connecting part to increase costs and safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0021] Figure 1 A schematic diagram of the structure of a high voltage electrical connector in the prior art is shown;

[0022] Figure 2 A schematic diagram of the structure of a high voltage electrical connector in the prior art is shown;

[0023] Figure 3 A schematic structural diagram of a first embodiment of a high-voltage electrical connection composite integrated component according to the present invention is shown;

[0024] Figure 4 Shows Figure 3 A magnified schematic diagram of part A;

[0025] Figure 5 A schematic structural diagram of a second embodiment of a high-voltage electrical connection composite integrated component according to the present invention is shown;

[0026] Figure 6 Shows Figure 5 A magnified schematic diagram of part B;

[0027] Figure 7 A schematic structural diagram of a third embodiment of a high-voltage electrical connection composite integrated component according to the present invention is shown;

[0028] Figure 8 A schematic structural diagram of a fourth embodiment of a high-voltage electrical connection composite integrated component according to the present invention is shown;

[0029] Fig. 9 A schematic structural diagram of a fifth embodiment of a high-voltage electrical connection composite integral part according to the present invention is shown.

[0030] The above drawings include the following reference numerals:

[0031] 10. Installation substrate; 101. Connection section; 102. Reinforcement section; 103. High voltage lead section; 104. Main section; 11. Connection protrusion; 12. Heat dissipation structure; 13. Reinforcement structure; 14. Fixed connection point; 15. Rolling strip;

[0032] 20. High voltage connection part; 21. High voltage connection end; 22. High voltage lead-out end;

[0033] 30. Composite upper cover; 31. Card slot. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0035] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0036] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0037] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for the sake of clarity, the thickness of the layers and regions may be enlarged, and the same reference numerals are used to represent the same devices, and thus their descriptions will be omitted.

[0038] In order to illustrate the technical effect of the high-voltage electrical connection composite integrated part in the present application, the structure of the high-voltage electrical connection part of the battery system in the prior art is now described. Figure 1 , Figure 2 As shown, Figure 1 , Figure 2 The metal material and structure of the high-voltage electrical connector in the prior art, the installation substrate 10 is mostly formed by one-piece die-casting aluminum alloy or sheet metal stamping process. Due to the material density of the die-casting aluminum alloy or metal stamping parts themselves, the installation substrate 10 needs to be designed with a large number of weight-reducing structures, such as setting the center of the installation substrate 10 as a hollow structure; and due to the requirements of the metal material processing and molding process, the structure in the molding process needs to consider the installation surface, angle, shape, strength, rigidity and the difficulty and complexity of mold processing interference factors, which cannot be met under the condition of spatial alignment limitations, so additional insulating materials are added for electrical safety isolation, which means that the design and manufacturing costs and subsequent maintenance costs are additionally increased.

[0039] like Figure 1 , Figure 2 As shown, the metal mounting substrate 10 is independently connected to the box of the battery system. A fixed connection point 14 needs to be fixed and independently formed on the metal mounting substrate 10 to connect to the box. At the same time, the electrical installation distance and the creepage distance must also be considered. In particular, during vibration, there will be a risk of torque attenuation or fastener slippage, superimposed with fatigue fracture. Even if the stability of the metal bracket is enhanced by reinforcement, there is still a risk of falling off. If a short circuit occurs in the high-voltage connection part 20, it is very likely to cause high-voltage safety accidents and thermal runaway accidents, causing direct harm to personnel.

[0040] Combination Figures 3 to 9 As shown, according to a specific embodiment of the present application, a high-voltage electrical connection composite integral part is provided.

[0041] Specifically, Figure 3 , Figure 5 , Figure 7As shown, the high-voltage electrical connection composite integrated part has an installation substrate 10 and a high-voltage connecting part 20, the installation substrate 10 is used to fix the high-voltage electrical connection composite integrated part to the installation position, the high-voltage connecting part 20 has a high-voltage connecting terminal 21 and a high-voltage lead-out terminal 22, the high-voltage connecting terminal 21 is used to electrically connect to the battery cell cluster, and the high-voltage lead-out terminal 22 includes at least a charging lead-out terminal and a discharging lead-out terminal, wherein the high-voltage electrical connection composite integrated part is integrally formed.

[0042] By applying the technical solution of this embodiment, the high-voltage connecting part 20 is integrally formed on the mounting substrate 10, so that the high-voltage connecting terminal 21 of the high-voltage connecting part 20 is connected to the battery cell cluster of the battery system, and the high-voltage lead-out terminal 22 is respectively connected to the external electrical equipment or charging equipment through the charging lead-out terminal and the discharging lead-out terminal to realize the connection of the battery system with the external equipment through the high-voltage connecting part 20. After the high-voltage connecting part 20 and the mounting substrate 10 are integrally formed, it is possible to avoid winding the high-voltage connecting part 20 around the battery system and the mounting substrate 10, which can further save the space of the mounting substrate 10, thereby saving the space of the battery system, improving the overall space utilization, and avoiding multiple bending of the high-voltage connecting part 20 to increase costs and safety risks.

[0043] It should be noted that the mounting substrate 10 is made of insulating material. The insulating material used has advantages such as high strength, low density, and light weight, and is preferably a high-composite composite material. By setting the mounting substrate 10 as a composite insulating material, the installation of the battery system and the high-voltage electrical connection composite integrated part does not need to consider the electrical installation distance and the creepage risk distance, and can achieve extreme compression space, reduce the weight of the battery system, and further improve the performance of the battery system.

[0044] It should be understood that the high-voltage electrical connection composite integrated component in this embodiment can be used in addition to vehicle battery systems, and can also be used in other energy storage devices. When used in other energy storage devices, the installation substrate 10 is connected to the corresponding power supply equipment, and the high-voltage connection terminal 21 is used to connect to the high-voltage output terminal of the power supply equipment.

[0045] Specifically, Figure 3 , Figure 5 , Figure 6As shown, the mounting substrate 10 has a first working surface and a second working surface arranged opposite to each other along a first preset direction, wherein the high-voltage connection part 20 is arranged on the first working surface, and the high-voltage connection part 20 and the mounting substrate 10 are integrally formed by a hot pressing process. The second working surface is the inner surface of the mounting substrate 10 connected to the battery system, and the first working surface is the outer surface of the mounting substrate 10 connected to the battery system. The first working surface and the second working surface can separate the strong and weak electrical environments inside and outside the battery system. The high-voltage connection part 20 is arranged on the first working surface, which can avoid the high-voltage connection part 20 from directly contacting the battery system, resulting in a short circuit in the high-voltage connection part 20, thereby causing the battery system to have a thermal runaway and other safety accident risks. The high-voltage connection part 20 is mounted on the substrate 10 by a hot pressing process, and the high-voltage connection part 20 can be directly integrated on the mounting substrate 10, avoiding electrical connection from the mounting substrate 10 and the battery system through the rolling strip 15, thereby improving the safety and stability of the high-voltage connection part 20, and further compressing the space, so that the battery system can use the space more effectively in the case of tight space, and improve the energy density of the battery system.

[0046] It should be noted that the first preset direction is the thickness direction of the mounting substrate 10. The mounting substrate 10 and the high-voltage connecting part 20 are formed by a hot pressing process. Based on the hot pressing process, the mounting substrate 10 can be set to any shape structure matching the battery system. At the same time, the setting position of the high-voltage connecting part 20 on the mounting substrate 10 can also be arbitrarily arranged according to the position of the battery system cell cluster, thereby reducing the material usage of the mounting substrate 10 and the high-voltage connecting part 20 and reducing the cost. At the same time, the mounting substrate 10, the high-voltage connecting part 20 and the battery system are stably connected, further improving the stability of the high-voltage electrical connection composite integrated part and the battery system.

[0047] Furthermore, if Figures 3 to 5As shown, a fixed groove is provided on the first working surface, at least part of the high-voltage connection part 20 is embedded in the fixed groove, and the high-voltage connection end 21 and the high-voltage lead-out end 22 are both located outside the fixed groove. Compared with the prior art, the high-voltage connection part 20 adopts the copper bar stacking arrangement mode, which occupies too much longitudinal space of the high-voltage electrical connection composite integral part or the battery system (i.e., the space in the thickness direction of the high-voltage electrical connection composite integral part), because the lateral space of the high-voltage electrical connection composite integral part and the battery system (i.e., the space in the plane direction of the high-voltage electrical connection composite integral part) is less utilized, then in this embodiment, the high-voltage connection part 20 is embedded in the fixed groove on the mounting substrate 10, which can further utilize the space of the mounting substrate 10, and at the same time reduce the weight of the high-voltage electrical connection composite integral part and the battery system, thereby reducing the volume and weight of the device, improving the portability of the device, and reserving more space to improve the user's demand for high energy density battery system equipment and longer power usage time, etc., while improving the space utilization, it also solves the problems of electrical safety distance and creepage distance in the prior art.

[0048] It should be noted that when the hot pressing process is performed on the installation substrate 10 and the high-voltage connecting part 20, the position of the high-voltage connecting part 20 on the installation substrate 10 can be directly fixed. After the installation substrate 10 and the high-voltage connecting part 20 are integrally formed, the high-voltage connecting part 20 forms a fixed groove on the installation substrate 10, and the high-voltage connecting part 20 is arranged in the fixed groove, that is, the installation substrate 10 and the high-voltage connecting part 20 in the aforementioned embodiment are both integrally formed by the hot pressing process; it is also possible to preset the position and size shape of the fixed groove on the installation substrate 10 by setting the structure of the processing mold, first perform hot pressing molding on the installation substrate 10 to obtain the installation substrate 10 with the fixed groove, and then perform size design on the high-voltage connecting part 20 so that the high-voltage connecting part 20 matches the fixed groove, and then embed the high-voltage connecting part 20 into the fixed groove, that is, in this embodiment, only the installation substrate 10 can be integrally formed by the hot pressing process, and the high-voltage connecting part 20 can be separately arranged, so that it is convenient to adjust the size of the high-voltage connecting part 20 to meet the electrical requirements of the high-voltage connecting part 20 such as the resistivity or electrical overcurrent.

[0049] In one embodiment of the present application, the high-voltage connection part 20 is made of copper material, and the high-voltage connection part 20 is embedded in the fixed groove of the mounting substrate 10, avoiding the use of a copper busbar stacking structure to meet the electrical overcurrent requirements of the high-voltage connection part 20. At the same time, the high-voltage connection part 20 can be made into a copper sheet structure to make full use of the lateral space of the high-voltage electrical connection composite integral part and the battery system, ensuring that the cross-sectional area of ​​the high-voltage connection part 20 is the same as the cross-sectional area when the copper busbars are stacked to meet the resistivity requirements. Optionally, the high-voltage connection part 20 can also be made of aluminum material to further reduce costs, or other alloys or metal materials with good electrical overcurrent properties and low costs can be used.

[0050] Alternatively, if Figures 3 to 5 As shown, the end surface of the high-voltage connection part 20 away from the second working surface is arranged flush with the first working surface. This can reduce the material cost while ensuring that the flow rate is met, and at the same time avoid setting the high-voltage connection part 20 higher or lower than the fixed groove, causing the high-voltage connection part 20 to bulge or the mounting substrate 10 to be recessed, thereby failing to fully utilize the space of the mounting substrate 10.

[0051] Furthermore, if Figure 8 As shown, a connection groove is provided on the second working surface, and the connection groove is used to accommodate at least part of the control mainboard, and the control mainboard is the control mainboard of the vehicle power battery. In this way, after the high-voltage electrical connection composite integrated part is connected to the battery system, a storage space can be formed between the connection groove of the second working surface and the battery system, so that the electrical box of the battery system can be omitted, and the control mainboard in the electrical box can be placed in the storage space, that is, the space utilization rate of the battery system and the high-voltage electrical connection composite integrated part is improved, so as to further optimize the internal structure of the battery system.

[0052] In this embodiment, the control mainboard can be a printed circuit board (PCB board) or a battery management system (BMS mainboard), or a control mainboard that integrates a PCB board and a BMS mainboard. The PCB board can be used to provide electrical connections so that electronic components can be connected to each other and transmit electrical signals. The BMS mainboard can monitor and manage the status of the battery system to ensure the stable operation of the battery system. When the battery system is working, the second working surface places the control mainboard in the accommodating space of the connecting groove through the connecting groove for operation. The second working surface integrates the control mainboard in an inverted fixed manner, which can reduce the possibility of condensation causing corrosion, short circuit and other damage to the control mainboard during operation, that is, after the condensation is formed, it drips according to its own gravity and will not gather on the inverted fixed control mainboard. The first working surface and the second working surface are separated into two working surfaces by the installation substrate 10, which can isolate the strong and weak electrical environments at the two working surfaces, and avoid the control mainboard from interfering with the high-voltage connection part 20 on the first working surface in the connecting groove.

[0053] It should be noted that the second working surface can also directly integrate the control motherboard of the battery system, that is, the substrate 10 is installed to match the battery system for production, and the control motherboard in the electrical box of the battery system is integrated into the high-voltage electrical connection composite integral part, so as to further improve the space utilization of the battery system and improve the energy density of the battery system.

[0054] Furthermore, if Figure 3 , Figure 5 , Figure 7As shown, a plurality of connection protrusions 11 are provided on the first working surface, and the connection protrusions 11 are used to connect with high-voltage components. In this embodiment, a plurality of connection protrusions 11 are integrated and provided on the first working surface, and the provision of the connection protrusions 11 can facilitate the connection of high-voltage components or electrical modules with the first working surface, that is, the high-voltage components or electrical modules can also be integrated on the mounting substrate 10 through the connection protrusions 11, so that there is no need to additionally provide a fixed connection point 14 on the mounting substrate 10, and the high-voltage components or electrical modules can be directly installed on the mounting substrate 10, thereby improving the integration degree and practicality of the high-voltage electrical connection composite integral part.

[0055] Furthermore, a heat dissipation structure 12 is provided on the first working surface. The heat dissipation structure 12 can be provided between the connecting protrusions 11, or on the side walls of the connecting protrusions 11. More heat dissipation structures 12 can be provided near the fixing grooves to dissipate heat for the high-voltage connecting portion 20 embedded in the fixing grooves, and the remaining heat dissipation structures 12 on the first working surface can effectively dissipate heat for the high-voltage components.

[0056] Optionally, the heat dissipation structure 12 is a heat dissipation pattern. The heat dissipation structure 12 can also be a heat dissipation fin or a heat dissipation plate. Preferably, the heat dissipation pattern is a cross-shaped heat dissipation pattern, and the heat dissipation pattern is opened in a direction opposite to the first working surface.

[0057] Furthermore, if Figure 3 , Figure 5 , Figure 7 As shown, a power management module and an electrical connection module are provided on the first working surface, and the power management module and the high-voltage components transmit signals through the electrical connection module, and any two high-voltage components transmit signals through the electrical connection module. The electrical connection module has good electrical conductivity properties and can maintain good performance under high-voltage environments to improve the safety of the battery system. By providing the electrical connection module on the first working surface, electrical signals can be transmitted quickly and conveniently between the battery management module, the high-voltage components and the high-voltage connection part 20, which can improve the efficiency and accuracy of battery monitoring management.

[0058] In one embodiment of the present application, high-voltage electrical components such as high-voltage components, power management modules and electrical connection modules are integrated on the first working surface. The high-voltage components, power management modules and electrical connection modules are fixedly installed after the installation positions on the first working surface are determined. They are arranged as a structure integrated with the installation substrate 10 to improve the degree of integration and stability of the high-voltage electrical connection composite integral part. The installation method of the high-voltage components, power management modules and electrical connection modules on the first working surface can be fixedly installed by spot welding, interference fit, casting, glue sealing and the like.

[0059] Optionally, the electrical connection module is a module jumper copper bar or aluminum bar, which has good conductivity and low resistivity, and can be flexibly applied between different high-voltage components and management modules, and can work stably in a high-voltage electrical environment.

[0060] Further, the mounting substrate 10 includes a support portion, and along the second preset direction, the support portion includes a high-voltage lead-out section 103 and a main section 104 that are adjacently arranged, and the main section 104 is provided with a connection protrusion 11, a power management module, and an electrical connection module, and a part of the high-voltage connection portion 20 is arranged on the main section 104, and another part of the high-voltage connection portion 20 is arranged on the high-voltage lead-out section 103, and the high-voltage connection end 21 and the high-voltage lead-out end 22 of the high-voltage connection portion 20 are arranged protruding from the mounting substrate 10 along the third preset direction. The main section 104 is provided with a connection protrusion 11, and the power management module, the high-voltage components, and the electrical connection module are integrated through the connection protrusion 11, so that the monitoring and management of the power system and the electrical functions of the corresponding high-voltage components are integrated on the high-voltage electrical connection composite integral part, which reduces the burden on the power system, thereby improving the space utilization rate of the power system and improving the energy density of the power system. The high-voltage connection portion 20 is embedded in a fixing groove provided in the main body section 104 and the high-voltage lead-out section 103, and the two ends of the fixing groove respectively pass through the main body section 104 and the high-voltage lead-out section 103 on the first working surface along a third preset direction, that is, the high-voltage connection end 21 and the high-voltage lead-out end 22 are protruded from the mounting substrate 10, so that the high-voltage connection end 21 and the high-voltage lead-out end 22 do not affect the operation of the high-voltage components and module assemblies on the main body section 104 while connecting the battery cell cluster and external equipment of the battery system.

[0061] It should be noted that the second preset direction is the length direction of the installation substrate 10, and the third preset direction is the width direction of the installation substrate 10. The second preset direction and the third preset direction constitute the transverse plane space where the high-voltage electrical connection composite integral part is located.

[0062] Those skilled in the art should understand that, since the shape and size of the high-voltage electrical connection composite integrated part need to match the specific battery system, the second preset direction and the third preset direction can be changed according to the specific size and structure of the installation substrate 10, but the plane formed by the second preset direction and the third preset direction is the transverse plane in which the high-voltage electrical connection composite integrated part is located, that is, the plane in which the first working surface and the second working surface are located, so as to facilitate the integration of electrical parts such as power management modules and high-voltage components into the high-voltage electrical connection composite integrated part, thereby maximizing the space utilization of the battery system and the high-voltage electrical connection composite integrated part.

[0063] Specifically, Fig. 9As shown, the bracket assembly includes a composite upper cover 30, and the composite upper cover 30 has a covering position connected to the installation substrate 10, and the composite upper cover 30 has an open position separated from the installation substrate 10. When the composite upper cover 30 is in the covering position, the composite upper cover 30 and the installation substrate 10 are covered to form a receiving cavity, and the connecting protrusion 11, the power management module and the electrical connection module are all located in the receiving cavity. By setting the composite upper cover 30, the main body section 104 on the first working surface is covered with the composite upper cover 30 to form a receiving cavity. When the composite upper cover 30 is in the covering position, part of the high-voltage connection part 20 on the main body section 104 and the integrated power management module, high-voltage components and electrical connection module are all located in the receiving cavity, which can prevent the high-voltage electrical components in the receiving cavity from being electrically affected by the battery system and the surrounding environment, so that the supervision of the battery system is more accurate, and the safety and stability of the battery system are improved.

[0064] It should be noted that the high-voltage lead-out section 103 of the first working surface can also be set as a part that cooperates with the composite upper cover 30, that is, after the main section 104 and the high-voltage lead-out section 103 are covered by the composite upper cover 30, part of the high-voltage connecting part 20 located on the high-voltage lead-out section 103 is also placed in the accommodating cavity, thereby playing a role in fully protecting the high-voltage connecting part 20.

[0065] In this embodiment, a card slot 31 is further provided on the side of the installation substrate 10. The card slot 31 cooperates with the composite upper cover 30 to quickly connect the installation substrate 10 with the composite upper cover 30. At the same time, the card slot 31 is extended along the second preset direction or the third preset direction to achieve transverse plane connection between the installation substrate 10 and the composite upper cover 30, which can avoid torque attenuation or slippage of the connector during vibration, causing the composite upper cover 30 to loosen in the longitudinal direction, resulting in contact between the electrical components in the accommodating cavity and the environment outside the accommodating cavity, which is prone to electrical impact and safety accidents.

[0066] Optionally, the connection between the mounting substrate 10 and the composite upper cover 30 may be achieved by means of snaps, splines, etc. On the basis of this connection, a reverse buckle or barb structure may be used to further strengthen the connection between the mounting substrate 10 and the composite upper cover 30 .

[0067] Furthermore, the mounting substrate 10 also includes a mounting portion, and the mounting substrate 10 is fixed to the mounting position through the mounting portion. The mounting portion is provided with a plurality of hollow portions arranged at intervals along a third preset direction, and a reinforcement structure 13 is arranged in at least one hollow portion, and the reinforcement structure 13 includes a metal reinforcement layer and an insulating layer coated on the surface of the metal reinforcement layer. By arranging the reinforcement structure 13 in the hollow portion of the mounting portion, the stability of the connection between the mounting substrate 10 and the battery system can be improved, and the risks of torque attenuation or fastener slippage, superimposed fatigue fracture, etc. of the high-voltage electrical connection composite integrated part in the prior art during vibration can be avoided, which is prone to fall off and short-circuit the high-voltage connector, resulting in high-voltage safety accidents and thermal runaway accidents.

[0068] Optionally, the reinforcing structure 13 may be a reinforcing rib or a reinforcing rib, and the reinforcing rib or the reinforcing rib is cross-shaped.

[0069] In an exemplary embodiment of the present application, the mounting portion includes a connecting section 101, and the connecting sections 101 are multiple, and the multiple connecting sections 101 are respectively connected and fixed to the battery system, so that the mounting substrate 10 is firmly connected to the battery system, and at the same time facilitates the connection between the high-voltage connecting terminal 21 and the battery cell cluster of the battery system.

[0070] Specifically, Figure 3 , Figures 5 to 9 As shown, along the first preset direction, two connecting sections 101 are respectively arranged at both ends of the support part, and the two connecting sections 101 are respectively connected to the high-voltage lead-out section 103 and the main section 104 through a reinforcing section 102, and the high-voltage lead-out section 103 and the main section 104 are connected; along the second preset direction, the connecting section 101, the main section 104 and the high-voltage lead-out section 103 are all arranged perpendicular to the two reinforcing sections 102, and the reinforcing section 102 is integrated with a reinforcing structure 13, or the reinforcing structure 13 can also be connected to the reinforcing section 102 by a fixed connection method such as spot welding or interference fit. By arranging the reinforcing section 102 and the reinforcing structure 13 adjacent to the connecting section 101, the strength and reliability of the connection between the high-voltage electrical connection composite integral part and the battery system can be improved.

[0071] In this embodiment, the installation substrate 10 is made of insulating material. The insulating layer on the surface of the composite upper cover 30 and the reinforcing structure 13 is made of the same insulating material as the installation substrate 10. The insulating material used has advantages such as high strength, low density, and light weight, and is preferably a high-composite composite material. The above-mentioned insulating material is used to isolate the first working surface and the second working surface from each other through the insulating installation substrate 10. There is no need to consider electrical safety risks for the high-voltage electrical components in the accommodating cavity on the first working surface and the control motherboard in the connecting groove of the second working surface, and the space can be compressed to the limit, reducing the weight of the energy storage system and further improving the performance of the energy storage system.

[0072] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0073] 1) Improve space utilization. This application integrates the power control module unit with the high-voltage connector to avoid the problem of additional assembly and stacking in the prior art, thereby reducing the volume and weight of the battery system and improving space utilization. At the same time, since no additional assembly space is required, the battery system can use space more effectively in a tight space situation, thereby further improving the energy density of the battery system.

[0074] 2) Reduce manufacturing costs. Since the present application no longer requires additional assembly of power control module units and high-voltage connectors, it not only reduces time costs but also reduces manufacturing costs, which has important economic significance for large-scale production.

[0075] 3) Solving the power limitation problem: This application optimizes the integration of the battery management system and the signal processing system of the battery system, thereby effectively solving the battery power limitation problem, extending the battery life and improving the battery performance.

[0076] 4) Improved safety and stability. This application gradually merges and integrates the management system and the signal processing system to make the monitoring and management of the battery system more efficient and accurate, thereby improving the safety and stability of the battery system.

[0077] 5) The application in the field of power electronics technology has further improved the design, manufacture and application of power electronic devices, as well as the design, control and optimization of power electronic systems.

[0078] 6) In mobile electronic devices, the volume and weight of mobile electronic devices can be effectively reduced, and the portability and user experience of mobile electronic devices can be improved. In addition, the present application can also increase the energy density of the battery system, thereby extending the battery life of mobile electronic devices and improving the performance and competitiveness of mobile electronic devices.

[0079] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0080] In addition to the above, it should be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of the present invention.

[0081] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0082] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high voltage electrical connection composite integral part, characterized in that: The high-voltage electrical connection composite integrated piece comprises an installation substrate (10) and a high-voltage connection portion (20), wherein the installation substrate (10) is used to fix the high-voltage electrical connection composite integrated piece to an installation position, and the high-voltage connection portion (20) comprises a high-voltage connection end (21) and a high-voltage lead-out end (22), wherein the high-voltage connection end (21) is used to be electrically connected to a battery cell cluster, and the high-voltage lead-out end (22) comprises at least a charging lead-out end and a discharging lead-out end, wherein the high-voltage electrical connection composite integrated piece is integrally formed.

2. The high voltage electrical connection composite integral part according to claim 1, characterized in that: The mounting substrate (10) has a first working surface and a second working surface which are arranged opposite to each other along a first preset direction, wherein the high-voltage connection portion (20) is arranged on the first working surface, and the high-voltage connection portion (20) and the mounting substrate (10) are integrally formed by a hot pressing process.

3. The high voltage electrical connection composite integral part according to claim 2, characterized in that: A fixing groove is provided on the first working surface, and at least a portion of the high-voltage connection portion (20) is embedded in the fixing groove, and the high-voltage connection end (21) and the high-voltage lead-out end (22) are both located outside the fixing groove.

4. The high voltage electrical connection composite integral part according to claim 2, characterized in that: The end surface of the high-voltage connection portion (20) away from the second working surface is arranged flush with the first working surface.

5. The high voltage electrical connection composite integral part according to claim 3, characterized in that: The second working surface is provided with a connection groove, and the connection groove is used to accommodate at least a part of the control main board, and the control main board is the control main board of the automobile power battery.

6. The high voltage electrical connection composite integral part according to claim 3, characterized in that: A plurality of connection protrusions (11) are arranged on the first working surface, and the connection protrusions (11) are used to be connected to high-voltage components.

7. The high voltage electrical connection composite integral part according to claim 1, characterized in that: A heat dissipation structure (12) is arranged on the first working surface.

8. The high voltage electrical connection composite integral part according to claim 7, characterized in that: The heat dissipation structure (12) is a heat dissipation pattern.

9. The high voltage electrical connection composite integral part according to claim 6, characterized in that: A power management module and an electrical connection module are provided on the first working surface. The power management module and the high-voltage components transmit signals through the electrical connection module, and any two high-voltage components transmit signals through the electrical connection module.

10. The high voltage electrical connection composite integral part according to claim 6, characterized in that: The installation substrate (10) comprises a supporting portion, and along a second preset direction, the supporting portion comprises a high-voltage lead-out section (103) and a main section (104) arranged adjacent to each other, the main section (104) being provided with the connecting protrusion (11), the power management module and the electrical connection module, a portion of the high-voltage connecting portion (20) being arranged on the main section (104), and another portion of the high-voltage connecting portion (20) being arranged on the high-voltage lead-out section (103), and the high-voltage connecting end (21) and the high-voltage lead-out end (22) of the high-voltage connecting portion (20) being arranged protruding from the installation substrate (10) along a third preset direction.

11. The high voltage electrical connection composite integral part according to claim 10, characterized in that: The high voltage electrical connection composite integrated part further comprises: A composite upper cover (30), wherein the composite upper cover (30) has a covering position connected to the mounting substrate (10), and the composite upper cover (30) has an open position separated from the mounting substrate (10); when the composite upper cover (30) is in the covering position, the composite upper cover (30) and the mounting substrate (10) cover to form a receiving cavity, and the connecting protrusion (11), the power management module and the electrical connection module are all located in the receiving cavity.

12. The high voltage electrical connection composite integral part according to claim 1 or 10, characterized in that: The installation substrate (10) further comprises an installation portion, the installation substrate (10) is fixed to the installation position via the installation portion, the installation portion is provided with a plurality of hollow portions arranged at intervals along a third preset direction, at least one of the hollow portions is provided with a reinforcement structure (13), the reinforcement structure (13) comprises a metal reinforcement layer and an insulating layer coated on the surface of the metal reinforcement layer.

13. The high voltage electrical connection composite integral part according to claim 1, characterized in that: The installation substrate (10) is made of insulating material.

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