Chassis electric appliance box assembly

Through the side fixed installation of the chassis electrical box assembly, the problems of large space occupied by traditional fixing methods and poor sealing performance are solved, and platform layout is realized, cost reduction and sealing performance are improved, and maintenance convenience is enhanced.

CN223207329UActive Publication Date: 2025-08-08HEBI LIANMING ELECTRIC APPLIANCE CO LTD
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Patent Information

Application Number
CN202421632597.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-10
Publication Date
2025-08-08
Estimated Expiration
2034-07-10

AI Technical Summary

Technical Problem

The traditional fixing method of the chassis electrical box occupies a large space for vehicle layout, is prone to vibration and damage, and has poor sealing performance, resulting in messy wiring harnesses and short circuit risks, making it difficult to achieve platformization, increasing vehicle parts and management costs.

Method used

The side-fixed mounting chassis electrical box assembly is used, and the injection molded structure and bolt inserts are fixed to the frame with the mounting base and the shell. The sealing performance is improved by combining the sealing ring and sealing silicone strip, and the position of the safety and relay on the partition can be changed to achieve platformization and reduce the type of wire harness.

Benefits of technology

The platform layout of the chassis electrical box is realized, reducing the types of wire harnesses, reducing comprehensive costs, enhancing maintenance convenience, and improving sealing performance to prevent foreign objects such as dust from entering, avoiding the risk of confusion in the wire harness and short circuits in the fire.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a chassis electric appliance box assembly, which relates to the field of automobile accessory assembly and comprises a box cover and a shell. A mounting base is arranged at the lower part of the shell, a plurality of bolt inserts are arranged on the mounting base, and the plurality of bolt inserts are used for fixing the chassis electric appliance box on a frame; a partition plate is arranged in the shell and is used for mounting an electrical element; a plurality of first fasteners are arranged on the partition plate, and the partition plate is fixed in the shell through the first fasteners; the box cover is installed on the upper portion of the shell, a plurality of second fasteners are arranged on the box cover, and the box cover is fixed to the shell through the second fasteners. The electric appliance box can be arranged at a fixed position in a side face fixing mode, platform is achieved, the requirement of a modified vehicle of a whole vehicle can be met, the types of wire harnesses can be reduced, the comprehensive cost can be reduced, maintenance convenience can be enhanced, the sealing performance of the electric appliance box is considered, and dust and other foreign matter are prevented from entering the electric appliance box in the using process of the vehicle.
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Description

Technical Field

[0001] The utility model relates to the field of automobile electronic control, in particular to a chassis electrical appliance box assembly. Background Art

[0002] The chassis electrical box is located on the vehicle chassis and centrally houses electrical components such as fuses and relays. Light truck chassis layouts vary widely, and changes to the chassis electrical box often lead to changes in the vehicle's wiring harness. This makes it difficult to implement a platform-based design, creating inconvenience in vehicle production, supply, and quality inspection, thereby increasing component and management costs.

[0003] The main problems with traditional chassis electrical boxes are as follows: The traditional fixing method of chassis electrical boxes mostly uses bottom legs for fixing. On the one hand, this fixing method requires the use of a fixing platform, which is fixed to the frame or other structures through the fixing platform, occupying the vehicle layout space. On the other hand, the bottom leg fixing method is prone to vibration damage during vehicle operation due to the large fixing platform and long cantilever. In addition, due to the requirements of dust and water resistance, the existing chassis electrical boxes are almost sealed and do not have an independent power supply device. When customers draw power from the battery or damage the chassis electrical box, it will cause the wiring harness of the entire vehicle to be messy, and there is a risk of fire and short circuit. After the fuse box is damaged, the sealing structure will be destroyed, and the sealing performance of the chassis electrical box will be greatly reduced, which will cause frequent product failures. Utility Model Content

[0004] The purpose of the utility model is to provide a chassis electrical box assembly, which can improve the visual appearance and aesthetics of the decorative cover while improving the buffering performance and sealing performance of the door lock position.

[0005] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0006] A chassis electrical box assembly includes: a box cover and a shell; a mounting base is provided at the lower portion of the shell, and a plurality of bolt inserts are provided on the mounting base, and the plurality of bolt inserts are used to fix the chassis electrical box to the vehicle frame; a partition is provided in the shell, and the partition is used to install electrical components; a plurality of first fasteners are provided on the partition, and the partition is fixed in the shell by the plurality of first fasteners; a box cover is installed above the shell, and a plurality of second fasteners are provided on the box cover, and the box cover is fixed to the shell by the plurality of second fasteners.

[0007] In a possible implementation, the housing is provided with a wire outlet hole, the wire outlet hole is connected to a closed threaded tube, and the closed threaded tube is used to protect the wire harness extending from the wire outlet hole.

[0008] In a possible implementation, a sealing ring is provided at the connection between the wire outlet hole and the closed-end threaded pipe.

[0009] In a possible implementation, the other side of the closed-end threaded pipe is connected to a tail clamp, the other side of the tail clamp is connected to a latch, and the other side of the latch is connected to a sheath.

[0010] In a possible implementation, the wire outlet hole is provided on a short side of the housing.

[0011] In a possible implementation, the mounting base is disposed on a long side of the housing.

[0012] In a possible implementation, a sealing strip is further provided between the box cover and the housing.

[0013] In a possible implementation, the electrical components include: multiple fuse elements and multiple relays.

[0014] In a possible implementation, the first fastener is a self-tapping screw, and the second fastener is a cross-recessed hexagonal head bolt.

[0015] Based on the above technical solution, the utility model provides a chassis electrical box assembly, in which the mounting base adopts an injection molded structure integrally formed with the shell, and the bolt inserts are pre-buried in the reinforcing ribs of the injection molded structure in a predetermined number and distribution. As a result, the chassis electrical box assembly can be arranged in a fixed position using a side-fixed type, realizing platformization, which can not only meet the needs of modified vehicles, but also reduce the types of wiring harnesses and reduce overall costs, and enhance maintenance convenience. In addition, the chassis electrical box assembly also improves the sealing performance of the electrical box through sealing rings and sealing silicone strips to prevent the entry of foreign matter such as dust during vehicle use. In addition, the partition inside the electrical box is designed to be internally installed and the position and number of fuses and relays on the partition can be replaced. The installation of the partition does not affect the appearance of the entire vehicle, and cleverly utilizes the method of interchangeable partitions to achieve more combinations to provide more chassis electrical box forms. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A top view of a chassis electrical box assembly provided by an embodiment of the present utility model;

[0017] Figure 2 A front view of a chassis electrical box assembly provided by an embodiment of the utility model

[0018] Figure numerals: 1-sheath; 2-pin; 3-tail clip; 4-closed threaded tube; 5-wiring harness; 6-sealing ring; 7-housing; 8-mounting base; 9-partition; 10-chip fuse; 11-chip fuse; 12-first fastener; 13-chip fuse; 14-second fastener; 15-bolt insert; 16-box cover; 17-wire outlet hole; 18-sealing strip. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] It should be noted that in the embodiments of the present invention, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present invention should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0021] It should be noted that the architecture described in the embodiment of the present invention is intended to more clearly illustrate the technical solution of the embodiment of the present invention, and does not constitute a limitation on the technical solution provided by the embodiment of the present invention. Ordinary technicians in this field can know that with the evolution of related industry technologies and the emergence of other equipment, the technical solution provided by the embodiment of the present invention is also applicable to similar technical problems.

[0022] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] The chassis electrical box is located on the vehicle chassis and centrally houses electrical components such as fuses and relays. Light truck chassis layouts vary widely, and changes to the chassis electrical box often lead to changes in the vehicle's wiring harness. This makes it difficult to implement a platform-based design, creating inconvenience in vehicle production, supply, and quality inspection, thereby increasing component and management costs.

[0024] The main problems with traditional chassis electrical boxes are as follows: The traditional fixing method of chassis electrical boxes mostly uses bottom legs for fixing. On the one hand, this fixing method requires the use of a fixing platform, which is fixed to the frame or other structures through the fixing platform, occupying the vehicle layout space. On the other hand, the bottom leg fixing method is prone to vibration damage during vehicle operation due to the large fixing platform and long cantilever. In addition, due to the requirements of dust and water resistance, the existing chassis electrical boxes are almost sealed and do not have an independent power supply device. When customers draw power from the battery or damage the chassis electrical box, it will cause the wiring harness of the entire vehicle to be messy, and there is a risk of fire and short circuit. After the fuse box is destroyed, the sealing structure will be destroyed, and the chassis electrical box will have an imbalance in water intake and drainage, resulting in an increased failure rate, which in turn causes frequent product quality problems.

[0025] Furthermore, the utility model proposes a chassis electrical box assembly, in which the mounting base adopts an injection molding structure integrally formed with the shell, and the bolt inserts are pre-buried in the reinforcing ribs of the injection molding structure in a predetermined number and distribution. As a result, the chassis electrical box assembly can be arranged in a fixed position by side fixing, realizing platformization, which can not only meet the needs of modified vehicles, but also reduce the types of wiring harnesses and reduce the overall cost, and enhance the convenience of maintenance. In addition, the chassis electrical box assembly also improves the sealing performance of the electrical box through sealing rings and sealing silicone strips to prevent the entry of foreign matter such as dust during the use of the vehicle. In addition, the partition inside the electrical box is designed to be internally installed and the position and number of fuses and relays on the partition can be replaced. The installation of the partition does not affect the appearance of the entire vehicle, and cleverly uses the method of interchangeable partitions to achieve more combinations to provide more chassis electrical box forms.

[0026] For example, Figure 1 This is a top view of a chassis electrical box assembly provided by an embodiment of the present invention. In the chassis electrical box assembly proposed by the present invention:

[0027] Reference Figure 1 The chassis electrical box assembly includes: a box cover 16 and a shell 7.

[0028] The lower portion of the housing 7 is provided with a mounting base 8, and a plurality of bolt inserts 15 are provided on the mounting base 8. Thus, the mounting base 8 is fixed to the vehicle frame via the plurality of bolt inserts 15.

[0029] Optionally, the mounting base 8 is provided on the long side of the housing 7. The mounting base 8 and the housing 7 body are formed as an integral injection molding structure, and the bolt inserts 15 can be pre-embedded in the reinforcement ribs of the injection molding structure in a predetermined number and distribution manner. The number of bolt inserts 15 can be two, refer to Figure 1 , one on each side of the housing 7. The specification of the bolt insert 15 can be M6.

[0030] Furthermore, a partition 9 is provided in the housing 7 for mounting electrical components required for the electrical box.

[0031] Optionally, the electrical components include: multiple fuses, multiple relays. For example, the aforementioned fuses can be sheet fuses, or other types of fuses; the aforementioned relays can be single-pin relays, multi-pin relays, or other types of relays, which are not specifically limited in this utility model. Figure 1 In the figure, the arrangement of electrical components on the partition 9 is given as an example. The fuse components include a sheet fuse 10, a sheet fuse 11, and a sheet fuse 13. Their fusing currents are 5A, 25A, and 10A respectively. There are also multiple relays distributed on the partition 9. It should be noted that Figure 1 The arrangement of the electrical components on the partition 9 is only one possible example, and does not mean that the arrangement of the electrical components on the partition 9 in the present invention is the only possible one.

[0032] Correspondingly, a plurality of first fasteners 12 are provided on the partition 9 , and the partition 9 is fixed in the housing 7 via the plurality of first fasteners 12 .

[0033] Exemplarily, the first fasteners 12 may be self-tapping screws, two in number, respectively disposed on both sides of the partition 9 .

[0034] And, the box cover 16 is installed above the housing 7. A plurality of second fasteners 14 are provided on the box cover 16, and the box cover 16 is fixed to the housing 7 through the plurality of second fasteners 14.

[0035] For example, the second fasteners 14 can be cross-recessed hexagonal head bolts, and there are four of them, which are respectively arranged at the four corners of the box cover 16 .

[0036] Optionally, a sealing strip 1817 is further provided between the box cover 16 and the housing 7. The sealing strip 1817 may be a silicone strip or other material with a good sealing effect, which is not specifically limited in the present invention.

[0037] In a possible implementation, the housing 7 is provided with a wire outlet hole 17 , and the wire outlet hole 17 is provided on a short side of the housing 7 .

[0038] Furthermore, the wire outlet hole 17 is connected to a closed threaded tube 4 . A wire harness 5 passes through the closed threaded tube 4 to protect the wire harness 5 extending from the wire outlet hole 17 .

[0039] Optionally, a sealing ring 6 is provided at the connection between the outlet hole 17 and the closed threaded tube 4. The other side of the closed threaded tube 6 is connected to the tail clip 3, the other side of the tail clip 3 is connected to the pin 2, and the other side of the pin 2 is connected to the sheath 1.

[0040] Optionally, the wire outlet hole 17 is provided on a short side of the housing 7 .

[0041] It should be noted that the chassis electrical box assembly provided by the present invention is mounted on the chassis frame using a side-mounted mounting method. Specifically, a fender bracket is vertically mounted on the chassis frame. A connecting plate is mounted on one side of the fender bracket, parallel to the fender bracket and at a predetermined distance therefrom. The connecting plate has mounting screw holes. The chassis electrical box assembly is secured to the connecting plate via bolt inserts 15 pre-embedded in the mounting base 8, thereby securing the chassis electrical box assembly to the vehicle frame.

[0042] Based on the above technical solution, the utility model provides a chassis electrical box assembly, in which the mounting base adopts an injection molded structure integrally formed with the shell, and the bolt inserts are pre-buried in the reinforcing ribs of the injection molded structure in a predetermined number and distribution. As a result, the chassis electrical box assembly can be arranged in a fixed position using a side-fixed type, realizing platformization, which can not only meet the needs of modified vehicles, but also reduce the types of wiring harnesses and reduce overall costs, and enhance maintenance convenience. In addition, the chassis electrical box assembly also improves the sealing performance of the electrical box through sealing rings and sealing silicone strips to prevent the entry of foreign matter such as dust during vehicle use. In addition, the partition inside the electrical box is designed to be internally installed and the position and number of fuses and relays on the partition can be replaced. The installation of the partition does not affect the appearance of the entire vehicle, and cleverly utilizes the method of interchangeable partitions to achieve more combinations to provide more chassis electrical box forms.

[0043] For example, Figure 2 This is a front view of the chassis electrical box assembly provided in an embodiment of the present utility model.

[0044] It should be pointed out that Figure 1 The components shown in the drawings do not constitute a limitation on the chassis electrical box assembly, except Figure 1 In addition to the components shown in the figures, the chassis electrical box assembly may include more or fewer components than shown, or combine certain components, or arrange the components differently.

[0045] It should be noted that the terms "first" and "second" in the specification, claims, and drawings of the present invention are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having," as well as any variations thereof, 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 limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or device.

[0046] It should be understood that in the present invention, "at least one (item)" refers to one or more,

[0047] "Multiple" refers to two or more, "at least two (items)" refers to two or three and more than three, and "and / or" is used to describe the association relationship of associated objects, indicating that there can be three relationships. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or plural.

[0048] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present invention shall be covered by the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A chassis electrical box assembly, characterized in that: The chassis electrical box assembly includes: a box cover and a shell; A mounting base is provided at the lower portion of the housing, and a plurality of bolt inserts are provided on the mounting base, and the plurality of bolt inserts are used to fix the chassis electrical box on the vehicle frame; A partition is provided in the housing, and the partition is used to install electrical components; a plurality of first fasteners are provided on the partition, and the partition is fixed in the housing by the plurality of first fasteners; The box cover is installed above the shell, and a plurality of second fasteners are provided on the box cover. The box cover is fixed to the shell through the plurality of second fasteners.

2. The chassis electrical box assembly according to claim 1, characterized in that: The housing is provided with a wire outlet hole, the wire outlet hole is connected to a closed threaded tube, and the closed threaded tube is used to protect the wire harness extending from the wire outlet hole.

3. The chassis electrical box assembly according to claim 2, characterized in that: A sealing ring is provided at the connection between the wire outlet hole and the closed-end threaded pipe.

4. The chassis electrical box assembly according to claim 2, characterized in that: The other side of the closed-end threaded pipe is connected to a tail clip, the other side of the tail clip is connected to a latch, and the other side of the latch is connected to a sheath.

5. The chassis electrical box assembly according to claim 4, characterized in that: The wire outlet hole is arranged on the short side of the shell.

6. The chassis electrical box assembly according to claim 1, characterized in that: The mounting base is arranged on a long side of the housing.

7. The chassis electrical box assembly according to claim 1, characterized in that: A sealing strip is further provided between the box cover and the shell.

8. The chassis electrical box assembly according to any one of claims 1 to 7, characterized in that: The electrical components include: multiple fuse components and multiple relays.

9. The chassis electrical box assembly according to any one of claims 1 to 7, characterized in that: The first fastener is a self-tapping screw, and the second fastener is a cross-recessed hexagonal head bolt.