A new type of vehicle electrical box
Patent Information
- Application Number
- CN202521971277.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-15
- Publication Date
- 2026-10-23
- Estimated Expiration
- 2035-09-15
AI Technical Summary
然而，现有车用电器盒在实际应用中仍存在一些不足，难以满足实际应用需求：其一，集成度较低，多数产品需通过多个独立部件分别实现配电与保护功能，导致整体体积偏大，占用车辆内部安装空间较多，且外接线束杂乱无章，增加了整车安装布置的难度；其二，防护性能欠佳，多数产品在车辆行驶过程中易受灰尘侵入、水溅影响，导致内部电子元件故障，尤其在工程机械、农用机械等多粉尘、高湿的恶劣工作环境下，设备可靠性显著降低；其三，环境适应性差，部分产品在极端温度环境下易出现防护失效、性能衰减等问题，进而引发电气系统故障，威胁车辆安全运行，且抗振动能力较弱，在颠簸路况下易引发元件松动或损坏；其四，维护与适配性差，电子元件多为固定连接，更换单个元件需拆卸整体结构，操作繁琐，且传统产品无法同时兼容12VDC乘用车与24VDC商用车、农用机械两种主流车用电气系统，使用时需额外加装电压转换模块，既增加了使用成本，又提升了故障风险
[0006]本实用新型的有益效果是：下框架壳体组件与上框架壳体组件盖合形成封闭腔室，配合连接条加固与密封胶条密封，可有效阻断外部灰尘、水溅侵入，提高防护性能，保障内部电子元件运行环境；采用添加抗老化剂与抗静电剂的阻燃性工程塑料一体注塑成型，结合下框架壳体底端的蜂窝状加强筋，赋予产品抗老化、抗变形、抗冲击、抗静电、耐腐蚀的特性，适应各类恶劣车载环境；粘贴与电子元件对应的三元乙丙橡胶缓冲垫，能在车辆振动时吸收冲击力，保护电子元件免受损伤；设置与电子元件引脚间距适配且带防滑凸块的插拔式电子元件卡座，可兼容安装保险丝、断路器、二极管、继电器及电阻等多种元器件，且卡座可单独更换，配合两侧带安装孔的安装耳座，极大简化了安装与检修操作，降低维护成本；接口模块可直接适配9～32VDC范围内的12VDC或24VDC电气系统，无需额外加装电压转换模块，结合集成的低压配电盒功能，实现对车辆后端多种设备的集中电力分配与保护；整体产品集成度高、体积小巧、外接设备方便，既提升了系统安全性与可靠性，又扩大了在乘用车、商用车、工程机械、农用机械等领域的适用范围，具有显著的实用价值与市场前景。
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Figure CN224890158U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive electronic components technology, and in particular to a novel automotive electrical box. Background Technology
[0002] As a key power distribution and protection component of a vehicle's electrical system, the performance of automotive electrical boxes directly determines the operational stability and safety of various electrical devices in the vehicle. However, existing automotive electrical boxes still have some shortcomings in practical applications, making it difficult to meet actual application needs: First, their integration is low. Most products require multiple independent components to achieve power distribution and protection functions, resulting in a large overall size, occupying a lot of installation space inside the vehicle, and the external wiring harnesses are messy, increasing the difficulty of overall vehicle installation and layout; Second, their protection performance is inadequate. Most products are susceptible to dust intrusion and water splashes during vehicle operation, leading to failure of internal electronic components, especially in harsh working environments with high dust and humidity, such as construction machinery and agricultural machinery, where equipment reliability is significantly reduced; Third... First, they have poor environmental adaptability. Some products are prone to protection failure and performance degradation in extreme temperature environments, which can lead to electrical system failures and threaten the safe operation of vehicles. They also have weak vibration resistance, which can easily cause components to loosen or be damaged on bumpy roads. Second, they have poor maintenance and adaptability. Most electronic components are fixedly connected, and replacing a single component requires disassembling the entire structure, which is cumbersome. Furthermore, traditional products cannot be simultaneously compatible with the two mainstream vehicle electrical systems, namely 12VDC passenger cars and 24VDC commercial vehicles and agricultural machinery. When using them, additional voltage conversion modules are required, which increases the cost of use and the risk of failure. Utility Model Content
[0003] To address some of the problems existing in the prior art, this utility model provides a novel vehicle electrical box. This electrical box provides core support for the stable operation of the electrical systems of various vehicles and related equipment, realizes power distribution and protection for the vehicle's back-end equipment, and meets the application requirements of main power distribution and auxiliary circuits in low-voltage power distribution scenarios.
[0004] To achieve the above objectives, this utility model provides a novel automotive electrical box, comprising an electrical box body. The electrical box body includes a lower frame housing assembly and an upper frame housing assembly, which are fitted together and connected to form a closed chamber, enabling centralized storage and protection of electronic components. Multiple connecting strips are provided between the lower and upper frame housing assemblies, and sealing strips are fitted at the joints to prevent external dust and water splashes from contacting the interior of the chamber, ensuring a safe operating environment for the internal electronic components. The lower frame housing assembly has symmetrically arranged mounting ears on both sides, each with mounting holes for securing the electrical box to a designated location on the vehicle with fasteners. The upper frame housing assembly has multiple electronic component slots spaced apart on its inner bottom surface, adapted to the pin spacing of the electronic components. The bottom of the lower frame housing assembly also integrates multiple interface modules, whose internal wiring connects to pre-set terminals on the electronic component slots, allowing external connection to vehicle equipment for power distribution and signal transmission.
[0005] In operation, this invention first utilizes the mounting holes on the symmetrically arranged mounting ears on both sides of the electrical box body, along with fasteners, to stably install the electrical box body in the designated position on the vehicle. Next, various automotive electronic components, such as fuses, circuit breakers, diodes, relays, and resistors, are inserted into the electronic component holders located on the bottom surface of the upper frame housing assembly. Anti-slip protrusions within the electronic component holders ensure secure installation of the electronic components, which can be individually plugged in and replaced. Then, the lower frame housing assembly is fitted onto the upper frame housing assembly, reinforced by multiple connecting strips between them. Sealing strips are installed at the joint to prevent external dust and water splashes. Nuts are then used in the symmetrically arranged fastening holes on the upper frame housing, and multiple auxiliary connecting bolts are located at the bottom of the lower frame housing assembly to tightly connect the upper and lower frame housings, forming a sealed chamber to protect the internal electronic components. Finally, the vehicle equipment is connected to the integrated interface module at the bottom of the lower frame housing. The extended outer shell at the module interface prevents dust and water intrusion. Its internal wiring connects to the pre-set terminals of the electronic component slots, allowing direct compatibility with 12VDC passenger vehicle electrical systems and 24VDC commercial vehicle and agricultural machinery electrical systems within a 9-32VDC operating voltage range, without the need for additional voltage conversion modules. Furthermore, the single-circuit current carrying capacity of the multiple independent circuits within the interface module is ≤30A, ensuring stable power distribution and signal transmission. During operation, the electrical box can withstand a working temperature range of -40℃ to 85℃. The EPDM rubber buffer pad adhered to the top surface inside the upper frame housing absorbs impact during vehicle vibration. The honeycomb structure formed by multiple reinforcing ribs at the bottom of the lower frame housing, along with the flame-retardant engineering plastics containing anti-aging and antistatic agents used in both the lower and upper frame housing components, effectively ensures the structural stability and safety of the electrical box. Simultaneously, the integrated low-voltage distribution box function provides power distribution protection for equipment such as windshield wipers, horns, audio systems, air conditioning, solenoid valves, and work lights at the rear of the vehicle.
[0006] The beneficial effects of this utility model are as follows: The lower frame housing assembly and the upper frame housing assembly are closed together to form a sealed chamber. Combined with the reinforcement of the connecting strip and the sealing strip, this effectively blocks the intrusion of external dust and water splashes, improving protective performance and ensuring the operating environment of the internal electronic components. The product is integrally injection molded from flame-retardant engineering plastic with added anti-aging and antistatic agents. Combined with the honeycomb-shaped reinforcing ribs at the bottom of the lower frame housing, it possesses anti-aging, anti-deformation, impact-resistant, antistatic, and corrosion-resistant properties, adapting to various harsh vehicle environments. The attached EPDM rubber buffer pads, corresponding to the electronic components, absorb impact during vehicle vibrations, protecting the electronic components from damage. The product features pluggable electronic components with anti-slip protrusions that are adapted to the pin spacing of the electronic components. The mounting bracket is compatible with various components such as fuses, circuit breakers, diodes, relays, and resistors. The bracket itself is replaceable, and combined with mounting ears on both sides with mounting holes, it greatly simplifies installation and maintenance, reducing maintenance costs. The interface module can directly adapt to 12VDC or 24VDC electrical systems within the 9-32VDC range, eliminating the need for additional voltage conversion modules. Combined with the integrated low-voltage distribution box function, it enables centralized power distribution and protection for various devices at the vehicle's rear end. The overall product features high integration, compact size, and convenient external device connection, improving system safety and reliability while expanding its applicability in passenger cars, commercial vehicles, construction machinery, and agricultural machinery, demonstrating significant practical value and market potential.
[0007] As a further improvement of this utility model, in order to enhance the durability and safety of the material and improve the structural stability and impact resistance, both the lower frame shell assembly and the upper frame shell assembly are integrally injection molded from flame-retardant engineering plastics, and anti-aging agents and antistatic agents are added to the flame-retardant engineering plastics; the lower frame shell assembly includes a lower frame shell, and the bottom end of the lower frame shell is provided with multiple reinforcing ribs to form a honeycomb structure.
[0008] As a further improvement of this utility model, in order to form a double fastening structure, enhance the stability and reliability of the connection between the upper and lower frame shells, and reduce the risk of vibration and loosening, the upper frame shell assembly includes an upper frame shell, on which fastening connection holes are symmetrically opened; a nut fastening assembly is fitted in the fastening connection hole, and the upper frame shell is connected to the inner end face of the lower frame shell through the nut fastening assembly; a plurality of auxiliary connecting bolt assemblies are also provided at the bottom end of the lower frame shell, and the lower frame shell is connected to the inner end face of the upper frame shell through the auxiliary connecting bolt assemblies.
[0009] As a further improvement of this utility model, in order to absorb the impact force when the vehicle vibrates, avoid damage to the internal electronic components, and improve reliability, a buffer pad is also attached to the inner top surface of the upper frame housing. The buffer pad is made of EPDM rubber. The position of the buffer pad corresponds to the electronic components and is used to absorb the impact force when the vehicle vibrates.
[0010] As a further improvement of this utility model, in order to enhance the interface protection performance and improve the product voltage compatibility, the interface module is equipped with an extended shell to prevent dust and water stains in the vehicle environment from entering the interface; the interface module is provided with multiple independent circuit terminals, and the single-circuit current carrying capacity of each circuit is ≤30A; the operating voltage range of the electrical box body is 9~32VDC, and the interface module can be directly adapted to 12VDC passenger car electrical systems and 24VDC commercial vehicle and agricultural machinery electrical systems without the need for additional voltage conversion modules.
[0011] As a further improvement of this utility model, in order to enhance the versatility and ease of maintenance of the electronic component holder, the electronic component holder is provided with anti-slip protrusions and is compatible with the installation of various automotive electronic components such as fuses, circuit breakers, diodes, relays and resistors. The electronic components can be individually plugged in and replaced.
[0012] As a further improvement of this utility model, in order to expand the environmental applicability and functional integration of the product, the working temperature range of the electrical box body is -40℃ to 85℃. The electrical box body also integrates the function of a low-voltage distribution box for power distribution and protection of vehicle back-end equipment such as wipers, horns, audio systems, air conditioners, solenoid valves and work lights. Attached Figure Description
[0013] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings: Figure 1 This is the front view of the present invention.
[0014] Figure 2 This is a bottom view of the present invention.
[0015] Figure 3 This is a schematic diagram of the internal structure of the upper frame shell assembly in this utility model.
[0016] The components include: 1. Electrical box body; 2. Lower frame housing assembly; 3. Upper frame housing assembly; 4. Nut fastening assembly; 5. Connecting strip; 6. Sealing strip; 7. Mounting ear; 8. Mounting hole; 9. Lower frame housing; 10. Interface module; 11. Reinforcing rib; 12. Auxiliary connecting bolt assembly; 13. Upper frame housing; 14. Fastening connection hole; 15. Buffer pad; and 16. Electronic component card holder. Detailed Implementation
[0017] To enable those skilled in the art to better understand the technical solutions in this utility model, the following description is provided in conjunction with the appendix. Figure 1-3 The present invention will be further described below. The following embodiments are only used to illustrate the technical solution of the present invention more clearly, and should not be used to limit the protection scope of the present invention.
[0018] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0019] like Figure 1-3The illustration shows a novel automotive electrical box, comprising an electrical box body 1. The electrical box body 1 includes a lower frame housing assembly 2 and an upper frame housing assembly 3. The lower frame housing assembly 2 and the upper frame housing assembly 3 are fitted together and connected to form a closed chamber, achieving centralized storage and protection of electronic components. Multiple connecting strips 5 are provided between the lower frame housing assembly 2 and the upper frame housing assembly 3, and sealing strips 6 are fitted into the joints to prevent external dust and water splashes from contacting the interior of the chamber, ensuring the operating environment of the internal electronic components. Mounting lugs 7 are symmetrically arranged on both sides of the lower frame housing assembly 2, and mounting holes 8 are provided on the mounting lugs 7 for fasteners to stabilize the electrical box. Installed at a designated location on the vehicle; the inner bottom surface of the upper frame housing assembly 3 is provided with multiple electronic component slots 16, which are adapted to the pin spacing of the electronic components; the bottom end of the lower frame housing assembly 2 is also integrated with multiple interface modules 10, whose internal circuits are connected to the pre-set terminals of the electronic component slots 16, and can be connected to vehicle equipment externally to realize power distribution and signal transmission; both the lower frame housing assembly 2 and the upper frame housing assembly 3 are integrally injection molded from flame-retardant engineering plastics, and anti-aging agents and antistatic agents are added to the flame-retardant engineering plastics; the lower frame housing assembly 2 includes a lower frame housing 9, and the bottom end of the lower frame housing 9 is provided with multiple reinforcing ribs 11 to form a honeycomb structure. The upper frame housing assembly 3 includes an upper frame housing 13, on which fastening connection holes 14 are symmetrically opened; a nut fastening assembly 4 is fitted into the fastening connection hole 14, and the upper frame housing 13 is connected to the inner end face of the lower frame housing 9 through the nut fastening assembly 4; the bottom end of the lower frame housing 9 is also provided with a plurality of auxiliary connecting bolt assemblies 12, and the lower frame housing 9 is connected to the inner end face of the upper frame housing 13 through the auxiliary connecting bolt assemblies 12; a buffer pad 15 is also attached to the inner top surface of the upper frame housing 13, and the buffer pad 15 is made of EPDM rubber; the position of the buffer pad 15 corresponds to the electronic components and is used to absorb vibrations when the vehicle vibrates. The interface module 10 is designed to withstand impact. An extended housing is provided at the interface to prevent dust and water from entering the interface. The interface module 10 contains multiple independent circuit terminals, each with a single-circuit current carrying capacity of ≤30A. The electrical box body 1 operates at a voltage range of 9–32VDC. The interface module 10 can directly adapt to 12VDC passenger vehicle electrical systems and 24VDC commercial vehicle and agricultural machinery electrical systems without requiring an additional voltage conversion module. The electronic component slot 16 has anti-slip protrusions and is compatible with various automotive electronic components such as fuses, circuit breakers, diodes, relays, and resistors. These electronic components can be individually plugged in and replaced.The electrical box body 1 operates within a temperature range of -40℃ to 85℃. It also integrates a low-voltage distribution box function for power distribution and protection of vehicle rear-end equipment such as windshield wipers, horns, audio systems, air conditioning, solenoid valves, and work lights.
[0020] In operation, this utility model first utilizes the mounting holes 8 on the symmetrically arranged mounting ears 7 on both sides of the electrical box body 1, and fasteners to stably install the electrical box body 1 in the designated position on the vehicle. Next, various automotive electronic components, such as fuses, circuit breakers, diodes, relays, and resistors, are inserted into the electronic component holders 16 located on the bottom surface of the upper frame housing 13 within the upper frame housing assembly 3. The anti-slip protrusions within the electronic component holders 16 ensure a secure installation of the electronic components, and the components can be individually plugged in and replaced. Finally, the lower frame housing assembly 2 is closed to the upper frame housing assembly 3. The upper frame housing 13 and the lower frame housing 9 are reinforced by multiple connecting strips 5, and sealing strips 6 are installed at the joint to block external dust and water splashes. Nut fastening components 4 are installed in the symmetrical fastening connection holes 14 on the upper frame housing 13, and multiple auxiliary connecting bolt assemblies 12 are installed at the bottom of the lower frame housing 9 in the lower frame housing assembly 2, to tightly connect the upper frame housing 13 and the lower frame housing 9, forming a closed chamber to protect the internal electronic components. Then, the vehicle equipment is connected to the interface module 10 integrated at the bottom of the lower frame housing 9. The extension at the interface of the interface module 10... The outer casing prevents dust and water intrusion. Its internal wiring connects to the pre-set terminals of the electronic component slot 16, allowing direct compatibility with 12VDC passenger vehicle electrical systems and 24VDC commercial vehicle and agricultural machinery electrical systems operating within a 9-32VDC voltage range, eliminating the need for additional voltage conversion modules. Furthermore, the interface module 10 has multiple independent circuits with a single-circuit current carrying capacity of ≤30A, ensuring stable power distribution and signal transmission. During operation, the electrical box can withstand a working temperature range of -40℃ to 85℃. The top surface of the upper frame housing 13 is made of EPDM rubber. The buffer pad 15 can absorb the impact force when the vehicle vibrates; the honeycomb structure formed by multiple reinforcing ribs 11 at the bottom of the lower frame housing 9, and the flame-retardant engineering plastics with added anti-aging agents and antistatic agents used in both the lower frame housing assembly 2 and the upper frame housing assembly 3, can effectively ensure the structural stability and safety of the electrical box. At the same time, the low-voltage power distribution box function integrated in the electrical box body 1 can provide power distribution protection for equipment such as wipers, horns, audio systems, air conditioners, solenoid valves, and work lights at the rear of the vehicle; if maintenance is required in the future, faulty electronic components can be directly plugged in and replaced from the electronic component slot 16.
[0021] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A novel vehicle electrical box, comprising an electrical box body (1), characterized in that: The electrical box body (1) includes a lower frame housing assembly (2) and an upper frame housing assembly (3). The lower frame housing assembly (2) and the upper frame housing assembly (3) are fitted together and connected to form a closed chamber, realizing centralized storage and protection of electronic components. Multiple connecting strips (5) are provided between the lower frame housing assembly (2) and the upper frame housing assembly (3), and sealing strips (6) are fitted at the joints to prevent external dust and water splashes from contacting the interior of the chamber, ensuring the operating environment of the internal electronic components. The lower frame housing assembly (2) The two sides are symmetrically provided with mounting ears (7), and the mounting ears (7) are provided with mounting holes (8) for use with fasteners to stably install the electrical box in the designated position of the vehicle; multiple electronic component slots (16) are provided at intervals on the inner bottom surface of the upper frame housing assembly (3), which are adapted to the pin spacing of the electronic components; multiple interface modules (10) are also integrated at the bottom end of the lower frame housing assembly (2), whose internal circuits are connected to the pre-set terminals of the electronic component slots (16), and can be connected to vehicle equipment to realize power distribution and signal transmission.
2. The novel vehicle electrical box according to claim 1, characterized in that: The lower frame housing assembly (2) and the upper frame housing assembly (3) are both integrally injection molded from flame-retardant engineering plastics, and anti-aging agents and antistatic agents are added to the flame-retardant engineering plastics; the lower frame housing assembly (2) includes a lower frame housing (9), and the bottom end of the lower frame housing (9) is provided with multiple reinforcing ribs (11) to form a honeycomb structure.
3. The novel vehicle electrical box according to claim 1 or 2, characterized in that: The upper frame housing assembly (3) includes an upper frame housing (13), on which fastening connection holes (14) are symmetrically opened; a nut fastening assembly (4) is fitted in the fastening connection hole (14), and the upper frame housing (13) is connected to the inner end face of the lower frame housing (9) through the nut fastening assembly (4); a plurality of auxiliary connecting bolt assemblies (12) are also provided at the bottom end of the lower frame housing (9), and the lower frame housing (9) is connected to the inner end face of the upper frame housing (13) through the auxiliary connecting bolt assemblies (12).
4. The novel vehicle electrical box according to claim 3, characterized in that: The inner top surface of the upper frame housing (13) is also covered with a buffer pad (15), which is made of EPDM rubber. The position of the buffer pad (15) corresponds to the electronic components and is used to absorb the impact force when the vehicle vibrates.
5. The novel automotive electrical box according to claim 1, characterized in that: The interface module (10) is equipped with an extended shell to prevent dust and water stains in the vehicle environment from entering the interface; the interface module (10) is provided with multiple independent circuit terminals, and the single current carrying capacity of each circuit is ≤30A; the working voltage range of the electrical box body (1) is 9~32VDC, and the interface module (10) can be directly adapted to 12VDC passenger car electrical system and 24VDC commercial vehicle and agricultural machinery electrical system without the need for additional voltage conversion module.
6. The novel automotive electrical box according to claim 1, characterized in that: The electronic component holder (16) is provided with anti-slip protrusions and is adapted to install fuses, circuit breakers, diodes, relays and resistors. The electronic components can be individually plugged in and replaced.
7. The novel vehicle electrical box according to claim 1, characterized in that: The electrical box body (1) has a working temperature range of -40℃ to 85℃. The electrical box body (1) also integrates a low-voltage distribution box function for power distribution and protection of wipers, horns, audio equipment, air conditioners, solenoid valves and work lights.