Waterproof sealed junction box

By designing a waterproof sealed junction box and using sealed connections and stepped drainage parts, the problem of water corrosion in the long-head heavy-duty truck junction box was solved, achieving the effects of waterproof, dustproof and easy installation.

CN223378795UActive Publication Date: 2025-09-23ANHUI WEIDU HLDG CO LTD
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Patent Information

Application Number
CN202422518913.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-18
Publication Date
2025-09-23
Estimated Expiration
2034-10-18

AI Technical Summary

Technical Problem

The existing junction box in the long-head heavy truck has poor sealing, which causes water to enter and corrode the wiring harness connector and controller, and there is no reserved leakage hole, which causes water to accumulate inside.

Method used

A waterproof sealed junction box is designed, which includes a junction box middle frame assembly, an upper frame assembly and a lower frame assembly. Rainwater is discharged through sealed connections and stepped drainage parts to prevent external water from entering and internal water from being discharged.

Benefits of technology

It can effectively prevent water and dust even when water enters, avoid internal corrosion, extend the service life of the equipment, and facilitate installation and maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a waterproof sealing junction box which comprises a junction box middle frame assembly, an upper frame assembly and a lower frame assembly. The junction box middle frame assembly is provided with an upper frame assembly and a lower frame assembly, and the upper frame assembly and the lower frame assembly can connect and seal the junction box middle frame assembly. The lower frame assembly is provided with a step drainage piece, and the step drainage piece can guide out rainwater. The beneficial effects of the utility model are that vehicle body wiring harness and chassis wiring harness connection and protection functions are realized, circuit installation and maintenance are convenient, the device can be conveniently installed in a forecabin of a new energy heavy truck through a small design, water can be discharged to the outside of the junction box through the stepped drainage member even if water enters the junction box, and the junction box is convenient to use. And the condition that the connector in the junction box is corroded is avoided.
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Description

Technical Field

[0001] The utility model relates to the technical field of new energy heavy trucks, in particular to a waterproof and sealed junction box. Background Art

[0002] Long-nose heavy-duty trucks benefit from the front cabin space created by their body structure. The location of the body wiring harness and chassis wiring harness junction boxes is different from traditional platform vehicles which can only be arranged in the front panel of the body. They can be arranged in the front cabin space, and the front panel space of the body can be used for more innovative design applications.

[0003] The junction boxes currently in use have poor sealing, which results in serious water ingress and no reserved drainage holes, leading to water accumulation inside. This can easily corrode the internal wiring harness connectors and controllers, which can seriously affect the use of the vehicle.

[0004] The present invention designs a waterproof and sealed junction box arranged in the front cabin space of a long-nose heavy-duty truck, which is used for connecting the vehicle body wiring harness and the chassis wiring harness and has waterproof and dustproof capabilities. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0006] In view of the above problems or problems existing in the prior art, the present utility model is proposed.

[0007] Therefore, the purpose of the present invention is to provide a waterproof and sealed junction box, which can be easily installed with a compact design, and can be waterproof and dustproof through a sealed connection method. Even if water enters, it can be smoothly discharged through the reserved stepped drainage parts to avoid internal corrosion.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: a waterproof and sealed junction box, which includes a junction box middle frame assembly, an upper frame assembly, and a lower frame assembly; the junction box middle frame assembly is respectively provided with an upper frame assembly and a lower frame assembly, and the upper frame assembly and the lower frame assembly can connect and seal the junction box middle frame assembly; the lower frame assembly is provided with a stepped drainage member, which can drain rainwater.

[0009] As a preferred solution of the waterproof sealed junction box of the utility model, wherein: the junction box middle frame assembly includes an upper middle frame member, a lower middle frame member, and a mounting groove; the upper middle frame member is connected to the lower middle frame member, and the upper middle frame member and the lower middle frame member are internally provided with mounting grooves, and the mounting grooves can connect and fix the wiring harness connector.

[0010] As a preferred solution of the waterproof sealed junction box of the utility model, the upper middle frame includes an upper middle frame and a vehicle body wiring harness access port; at least one set of vehicle body wiring harness access ports is provided on the upper middle frame, and the vehicle body wiring harness is connected to the wiring harness connector in the installation slot through the vehicle body wiring harness access port.

[0011] As a preferred solution of the waterproof sealed junction box of the utility model, wherein: the lower middle frame member includes a lower middle frame and a chassis wiring harness access port; at least one set of chassis wiring harness access ports is provided on the lower middle frame; the chassis wiring harness is connected to the wiring harness connector in the installation slot through the chassis wiring harness access port.

[0012] As a preferred solution of the waterproof sealed junction box of the utility model, a sealing kit is provided on the vehicle body wiring harness access port and the chassis wiring harness access port, the sealing kit can be connected to the protective cover, and the sealing kit can be waterproof and dustproof.

[0013] As a preferred solution of the waterproof sealed junction box of the present invention, the lower frame assembly further includes a lower frame and a lower cover sealing ring; the lower frame and the lower end of the junction box middle frame assembly are sealed and connected via the lower cover sealing ring.

[0014] As a preferred solution of the waterproof sealed junction box of the utility model, the stepped drainage component includes a collection trough and a stepped channel; the collection trough is recessed, and a stepped channel is provided below the collection trough, and the stepped channel can buffer the passage of rainwater.

[0015] As a preferred solution of the waterproof sealed junction box of the present invention, a baffle is provided in the stepped passage, the baffle faces the entrance of the stepped passage, and one side of the baffle is the exit of the stepped passage.

[0016] As a preferred solution of the waterproof sealed junction box of the present invention, the upper frame assembly includes an upper frame and an upper cover sealing ring; the upper frame and the upper end of the junction box middle frame assembly are sealed and connected through the upper cover sealing ring.

[0017] As a preferred solution of the waterproof sealed junction box of the utility model, the upper cover sealing ring is provided with an anti-flush mark.

[0018] The beneficial effects of the present invention are as follows: the present invention realizes the connection and protection functions of the vehicle body wiring harness and the chassis wiring harness, and is convenient for installation and maintenance of the lines. It is easy to install in the front compartment of a new energy heavy truck by utilizing a compact design. Moreover, even in the event of water ingress, the device can be discharged to the outside of the junction box through the stepped drainage parts, thereby avoiding corrosion to the connectors inside the junction box. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. Among them:

[0020] Figure 1 Exploded view of a waterproof sealed junction box.

[0021] Figure 2 A top view of the junction box midframe assembly of a waterproof sealed junction box.

[0022] Figure 3 This is a schematic diagram of the upper frame of the waterproof sealed junction box.

[0023] Figure 4 This is a bottom view of the waterproof sealed junction box.

[0024] Figure 5 for Figure 4 Cross-sectional view of the waterproof sealed junction box at point AA. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] Example 1

[0029] Reference Figures 1 to 3, which is the first embodiment of the utility model, provides a waterproof sealed junction box, which includes a junction box middle frame assembly 1, an upper frame assembly 2, and a lower frame assembly 3. The upper frame assembly 2 and the lower frame assembly 3 can be used to connect and fix the upper end and the lower end of the junction box middle frame assembly 1, and a sealed connection is performed. The wiring harness can be connected through the junction box middle frame assembly 1. A stepped drainage member 31 is provided on the lower frame assembly 3, and rainwater inside the upper frame assembly 2 can be drained through the stepped drainage member 31.

[0030] Specifically, it includes a junction box middle frame assembly 1, an upper frame assembly 2, and a lower frame assembly 3; the junction box middle frame assembly 1 is respectively provided with an upper frame assembly 2 and a lower frame assembly 3, and the upper frame assembly 2 and the lower frame assembly 3 can connect and seal the junction box middle frame assembly 1; the lower frame assembly 3 is provided with a stepped drainage member 31, which can drain rainwater.

[0031] Preferably, the stepped drainage member 31 can drain the water inside the equipment while preventing external water from entering the equipment, thereby greatly improving the service life of the equipment.

[0032] In summary, the utility model can connect, seal and fix the upper and lower ends of the junction box middle frame assembly 1 through the upper frame assembly 2 and the lower frame assembly 3, so that the junction box middle frame assembly 1 maintains a waterproof and dustproof environment. Even if water enters the device, it can be quickly drained through the stepped drainage member 31, thereby avoiding corrosion of the internal connector and extending its service life.

[0033] Example 2

[0034] Reference Figures 1 to 5 This is the second embodiment of the present utility model. In the previous embodiment, the waterproof sealed junction box includes a junction box middle frame assembly 1, an upper frame assembly 2, and a lower frame assembly 3. The upper frame assembly 2 and the lower frame assembly 3 can be used to connect and fix the upper end and the lower end of the junction box middle frame assembly 1, and a sealed connection is performed. The wiring harness can be connected through the junction box middle frame assembly 1. A stepped drainage member 31 is provided on the lower frame assembly 3, and the stepped drainage member 31 can be used to drain rainwater inside the upper frame assembly 2.

[0035] Specifically, it includes a junction box middle frame assembly 1, an upper frame assembly 2, and a lower frame assembly 3; the junction box middle frame assembly 1 is respectively provided with an upper frame assembly 2 and a lower frame assembly 3, and the upper frame assembly 2 and the lower frame assembly 3 can connect and seal the junction box middle frame assembly 1; the lower frame assembly 3 is provided with a stepped drainage member 31, which can drain rainwater.

[0036] Preferably, the stepped drainage member 31 can drain the water inside the equipment while preventing external water from entering the equipment, thereby greatly improving the service life of the equipment.

[0037] Furthermore, the junction box middle frame assembly 1 includes an upper middle frame member 11, a lower middle frame member 12, and a mounting groove 13; the upper middle frame member 11 is connected to the lower middle frame member 12, and the mounting groove 13 is set inside the upper middle frame member 11 and the lower middle frame member 12, and the mounting groove 13 can connect and fix the wiring harness connector.

[0038] Furthermore, the upper middle frame 11 includes an upper middle frame 111 and a body wiring harness access port 112 ; at least one set of body wiring harness access ports 112 is provided on the upper middle frame 111 , and the body wiring harness is connected to the wiring harness connector in the mounting slot 13 through the body wiring harness access port 112 .

[0039] Preferably, the vehicle body harness access ports 112 are provided in two groups, and the vehicle body harness can pass through the vehicle body harness access ports 112 and enter the mounting slot 13 to be connected and fixed with the harness connector.

[0040] Furthermore, the lower middle frame 12 includes a lower middle frame 121 and a chassis wiring harness access port 122 ; at least one set of chassis wiring harness access ports 122 is provided on the lower middle frame 121 ; the chassis wiring harness is connected to the wiring harness connector in the mounting slot 13 through the chassis wiring harness access port 122 .

[0041] Preferably, the chassis wiring harness access port 122 is set as two groups, and the chassis wiring harness access port 122 and the body wiring harness access port 112 are set to be consistent or inconsistent, which can be adjusted according to actual conditions; the chassis wiring harness access port 122 and the body wiring harness access port 112 of this device are set to be inconsistent in direction, which facilitates the connection of the wiring harness.

[0042] Furthermore, a sealing kit 14 is provided on the vehicle body wiring harness access port 112 and the chassis wiring harness access port 122 . The sealing kit 14 can be connected to the protective cover and can be waterproof and dustproof.

[0043] Preferably, the sealing kit 14 is a rubber sleeve, which can be sealed with the protective sleeve, further preventing water from entering the interior and extending the service life.

[0044] Furthermore, the lower frame assembly 3 further includes a lower frame 32 and a lower cover sealing ring 33 ; the lower frame 32 is sealedly connected to the lower end of the junction box middle frame assembly 1 via the lower cover sealing ring 33 .

[0045] Preferably, the lower cover sealing ring 33 ensures that the lower frame 32 and the lower middle frame 121 are sealed and connected to prevent water from entering.

[0046] Furthermore, the stepped drainage member 31 includes a collecting trough 311 and a stepped channel 312; the collecting trough 311 is recessed, and a stepped channel 312 is provided below the collecting trough 311, and the stepped channel 312 can buffer the passage of rainwater.

[0047] Preferably, the collecting tank 311 is configured to be concave in shape, so that the water flow inside can be quickly directed into the stepped channel 312 for rapid discharge.

[0048] Preferably, by providing a stepped channel 312, water can be discharged from the device in a circuitous manner.

[0049] Furthermore, a baffle 313 is provided in the stepped channel 312 . The baffle 313 faces the entrance of the stepped channel 312 , and one side of the baffle 313 is the exit of the stepped channel 312 .

[0050] Preferably, the baffle 313 can be provided to prevent external water from entering the stepped channel 312 .

[0051] Furthermore, the upper frame assembly 2 includes an upper frame 21 and an upper cover sealing ring 22 ; the upper frame 21 is sealed and connected to the upper end of the junction box middle frame assembly 1 via the upper cover sealing ring 22 .

[0052] Preferably, the upper frame 21 and the junction box middle frame assembly 1 can be sealed and connected by providing an upper cover sealing ring 22 .

[0053] Furthermore, the upper cover sealing ring 22 is provided with an anti-flush mark 23 .

[0054] Preferably, the anti-flushing mark 23 can be provided to prevent the user from flushing.

[0055] In summary, the present invention utilizes a compact design for easy installation, and can be waterproof and dustproof through a sealed connection. Even in the event of water ingress, the water can be smoothly discharged through the reserved stepped drainage piece 31, thus avoiding internal corrosion.

[0056] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, directional changes, etc.) without departing substantially from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0057] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0058] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.

[0059] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A waterproof sealed junction box, characterized in that: The invention comprises a junction box middle frame assembly (1), an upper frame assembly (2), and a lower frame assembly (3); the junction box middle frame assembly (1) is provided with an upper frame assembly (2) and a lower frame assembly (3), respectively; the upper frame assembly (2) and the lower frame assembly (3) can connect and seal the junction box middle frame assembly (1); the lower frame assembly (3) is provided with a stepped drainage member (31), and the stepped drainage member (31) can drain rainwater.

2. The waterproof sealed junction box according to claim 1, characterized in that: The junction box middle frame assembly (1) comprises an upper middle frame member (11), a lower middle frame member (12), and a mounting groove (13); the upper middle frame member (11) is connected to the lower middle frame member (12), and the upper middle frame member (11) and the lower middle frame member (12) are provided with mounting grooves (13) therein, and the mounting grooves (13) can be used to connect and fix the wiring harness connector.

3. The waterproof sealed junction box according to claim 2, characterized in that: The upper middle frame member (11) comprises an upper middle frame (111) and a vehicle body wiring harness access port (112); at least one set of vehicle body wiring harness access ports (112) is provided on the upper middle frame (111), and the vehicle body wiring harness is connected to the wiring harness connector in the installation slot (13) through the vehicle body wiring harness access port (112).

4. The waterproof sealed junction box according to claim 3, wherein: The lower middle frame member (12) comprises a lower middle frame (121) and a chassis wiring harness access port (122); at least one set of chassis wiring harness access ports (122) is provided on the lower middle frame (121); the chassis wiring harness is connected to the wiring harness connector in the installation slot (13) through the chassis wiring harness access port (122).

5. The waterproof sealed junction box according to claim 4, characterized in that: The vehicle body harness access port (112) and the chassis harness access port (122) are provided with a sealing kit (14), the sealing kit (14) can be connected to the protective cover, and the sealing kit (14) is waterproof and dustproof.

6. The waterproof sealed junction box according to claim 1, wherein: The lower frame assembly (3) further comprises a lower frame (32) and a lower cover sealing ring (33); the lower frame (32) is sealedly connected to the lower end of the junction box middle frame assembly (1) via the lower cover sealing ring (33).

7. The waterproof sealed junction box according to claim 1 or 6, characterized in that: The stepped drainage member (31) comprises a collecting trough (311) and a stepped channel (312); the collecting trough (311) is recessed, and a stepped channel (312) is provided below the collecting trough (311); the stepped channel (312) can buffer rainwater.

8. The waterproof sealed junction box according to claim 7, characterized in that: A baffle (313) is provided in the stepped channel (312), the baffle (313) is directly opposite to the entrance of the stepped channel (312), and one side of the baffle (313) is the exit of the stepped channel (312).

9. The waterproof sealed junction box according to claim 1, wherein: The upper frame assembly (2) comprises an upper frame (21) and an upper cover sealing ring (22); the upper frame (21) is sealed and connected to the upper end of the junction box middle frame assembly (1) via the upper cover sealing ring (22).

10. The waterproof sealed junction box according to claim 9, characterized in that: The upper cover sealing ring (22) is provided with an anti-flushing mark (23).