A wiring harness terminal connection fixing device

Abstract

The utility model discloses a kind of wire harness terminal connection fixing devices, it is related to wire harness terminal fixing technical field, including installation pedestal, being configured as the installation hole of embedding equipment shell;Guiding structure, including mutually matched guide convex rib and guide groove, guide convex rib and guide groove are respectively set in installation pedestal and installation hole, to guide installation pedestal accurately embedded installation hole;Elastic sheet, setting in the outer side wall of installation pedestal, it has the free end of elastically deformable, after installation pedestal is embedded installation hole, free end elastically deforms and with the inner wall of installation hole abuts. By embedding installation pedestal equipment shell, and the two sides of installation pedestal can be respectively inserted and connected wire harness terminal, not only can realize the butt joint of wire harness, still can fix butt joint position on equipment shell, effectively avoid the problem of loosening and abrasion caused by wire harness terminal suspension, shaking.

Description

Technical Field

[0001] This utility model relates to the field of wire harness terminal fixing technology, and in particular to a wire harness terminal connection and fixing device. Background Technology

[0002] A wire harness is an assembly consisting of multiple wires or cables bundled together, typically terminated with wire harness terminals made of metal or plastic. These terminals achieve electrical connections through plugging in, making them indispensable basic components in various electrical devices. Wire harnesses and terminals are widely used in automobiles, industrial equipment, home appliances, communication devices, and aerospace, responsible for transmitting power and signals between the device housing and circuit boards or between different device modules.

[0003] In practical applications, after one end of the wire harness is plugged into the circuit board inside the equipment, the other end needs to be mated with other wire harnesses. However, there is a common problem in existing technologies: the terminals of the wire harness after mating often lack effective mechanical fixation and are usually in a suspended or free state. This makes the wire harness terminals prone to movement, swinging, or even loosening under external forces or equipment vibrations, which not only affects the reliability of the connection but may also lead to terminal damage or poor contact due to fatigue in the long run, posing a safety hazard.

[0004] To address the aforementioned issues, adhesives are sometimes used to directly fix the wire harness terminals to the inner wall of the equipment housing. While this method restricts terminal movement to some extent, it has significant drawbacks: First, the adhesive strength is limited and it is prone to failure in environments with large temperature variations or vibrations; second, the adhesive is a permanent or semi-permanent fixation, making disassembly extremely difficult once completed. When repairing, replacing, or upgrading a single wire harness, the operation becomes extremely difficult and may even damage the wire harness or the equipment housing.

[0005] To address these technical problems, we propose a wire harness terminal connection and fixing device. Utility Model Content

[0006] This utility model provides a wire harness terminal connection and fixing device to solve the problems mentioned in the background art, such as the inability to fix wire harness terminals and the inconvenience of disassembly and maintenance due to adhesive fixing methods.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A wire harness terminal connection and fixing device is used to mate with a device housing having mounting holes and to fix the wire harness terminals to the device housing, comprising: The mounting base is configured to be embedded in the mounting holes of the device housing; The guide structure includes a guide rib and a guide groove that cooperate with each other. The guide rib and the guide groove are respectively provided on the mounting base and the mounting hole to guide the mounting base to be accurately embedded in the mounting hole. An elastic sheet is provided on the outer wall of the mounting base. It has a free end that can be elastically deformed. When the mounting base is inserted into the mounting hole, the free end elastically deforms and abuts against the inner wall of the mounting hole.

[0008] Furthermore, the elastic sheet is also provided with a fixed end, which is attached to the outer wall of the mounting base, and the free end extends obliquely away from the mounting base.

[0009] Furthermore, the free end has a friction contact surface formed at its end, which faces away from the mounting base and is provided with a textured surface.

[0010] Furthermore, two sets of elastic plates are provided, which are respectively disposed on two opposite side walls of the mounting base to provide symmetrical elastic clamping force to the inner wall of the mounting hole of the equipment housing.

[0011] Furthermore, the guide ribs are integrally formed with the mounting base.

[0012] Furthermore, the guide ribs are provided with guide ramps.

[0013] Furthermore, the mounting base has a first side and a second side arranged opposite to each other. The first side has a first terminal interface, and the second side has a connector with a second terminal interface.

[0014] Furthermore, conductive posts are inserted between the first terminal interface and the second terminal interface.

[0015] Furthermore, the edge of the first surface is provided with an outwardly extending limiting flange.

[0016] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: 1. By embedding the mounting base into the equipment housing, and allowing the insertion of wire harness terminals on both sides of the mounting base, not only is wire harness mating achieved, but the mating position is also fixed to the equipment housing, effectively avoiding loosening and wear problems caused by the wire harness terminals being suspended or shaking. Furthermore, this fixing method ensures connection reliability while also facilitating wire harness maintenance and replacement.

[0017] 2. By means of the elastic sheet set on the mounting base, when the base is inserted into the mounting hole of the equipment housing, the elastic sheet is compressed and undergoes elastic deformation, generating a rebound force. This rebound force is converted into a clamping force on the inner wall of the mounting hole, thereby achieving tool-less, quick-insertion tight fixation of the mounting base. This enables rapid installation and non-destructive disassembly of the mounting base, greatly improving the maintainability and reusability of the product.

[0018] 3. By incorporating a guiding structure, the mounting base is guided to accurately insert itself into the mounting holes of the equipment housing. This effectively prevents installation difficulties or damage caused by positional misalignment or improper angles, ensuring the accuracy of the installation operation and a high first-time success rate. It is especially suitable for blind insertion or space-constrained installation environments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a structural schematic diagram of the present invention from another angle.

[0021] Figure 3 This is a cross-sectional view of the present invention.

[0022] Figure 4 This is a diagram showing the state of the present invention when it is installed in the equipment housing.

[0023] Figure 5 This is a diagram showing the state of the present invention when a wire harness terminal is inserted.

[0024] Figure 6 This is a schematic diagram of the structure of a wire harness terminal in the prior art.

[0025] In the diagram: 100, mounting base; 101, first surface; 1011, first terminal interface; 1012, limiting flange; 102, second surface; 1021, connector; 1022, second terminal interface; 200, elastic sheet; 201, fixed end; 202, free end; 2021, friction contact surface; 300, guide rib; 301, guide slope; 400, conductive post; 500, wire harness terminal. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. The following description of at least one exemplary embodiment is illustrative in nature and is not intended to limit the present utility model or its application or use in any way. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0027] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0028] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as exemplary rather than limiting. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0029] Please see Figures 1 to 6 : This utility model provides a wire harness terminal connection and fixing device for engaging with a device housing with mounting holes to fix the wire harness terminal 500 to the device housing. The device housing includes the housings of industrial equipment, household appliances, communication devices, and other electrical equipment.

[0030] like Figure 1 and Figure 2 As shown, this utility model includes a mounting base 100, which can be embedded in a mounting hole in the device housing. The mounting hole corresponds to the size of the mounting base 100. In this embodiment, the mounting base 100 has a cuboid structure, with its length direction defined as the left-right direction, its width direction defined as the front-back direction, and its height direction defined as the up-down direction.

[0031] like Figure 5 and Figure 6 As shown, in one embodiment, the mounting base 100 has a first surface 101 and a second surface 102 disposed opposite to each other. The first surface 101 has a first terminal interface 1011, and the second surface 102 has a connector 1021 mounted on it. The connector 1021 has a second terminal interface 1022. A conductive post 400 is inserted between the first terminal interface 1011 and the second terminal interface 1022.

[0032] In this embodiment, the first surface 101 is the front surface of the mounting base 100, and the second surface 102 is the rear surface of the mounting base 100. The first terminal interface 1011 and the second terminal interface 1022 are correspondingly provided with the wire harness terminals 500 of the prior art. Both the first terminal interface 1011 and the second terminal interface 1022 can be connected to the wire harness terminals 500 with wire harnesses. Furthermore, when both the first terminal interface 1011 and the second terminal interface 1022 are connected to wire harness terminals 500, the wire harnesses on the front and rear sides can be connected via the conductive posts 400 to achieve electrical connection.

[0033] Meanwhile, since the mounting base 100 is embedded in the equipment housing, the connection position can be fixed after the wire harness is connected, effectively avoiding the problems of loosening and wear caused by the wire harness terminals 500 being suspended or shaking. This fixing method not only ensures connection reliability but also facilitates the maintenance and replacement of the wire harness.

[0034] This utility model also includes a guide structure, including a guide rib 300 and a guide groove that cooperate with each other. The guide rib 300 and the guide groove are respectively disposed on the mounting base 100 and the mounting hole to guide the mounting base 100 to be accurately embedded in the mounting hole.

[0035] like Figure 2 and Figure 3 As shown, in one embodiment, the guide rib 300 is integrally formed with the mounting base 100. The guide rib 300 is disposed on the upper and lower side walls of the mounting base 100. A corresponding guide groove is formed in the mounting hole. When the mounting base 100 is inserted into the mounting hole, the guide rib 300 will be inserted into the guide groove, thereby cooperating with the guide groove to guide the mounting base 100 to accurately embed into the mounting hole.

[0036] Furthermore, a guide ramp 301 is provided at the end of the guide rib 300 facing the mounting hole. When a slight alignment deviation occurs during the insertion of the mounting base 100 into the mounting hole of the equipment housing, the guide ramp 301 can contact the inner wall of the mounting hole or the edge of the guide groove before the guide rib 300. Through the sliding and guiding action of the ramp, the axial insertion force is decomposed into a radial correction component, forcing the mounting base 100 to produce a slight adaptive displacement, thus ultimately sliding in and centering at the predetermined installation position. Therefore, the guide ramp 301 can achieve self-centering, which is particularly suitable for blind insertion or assembly environments with poor visibility, greatly improving the success rate of first-time installation and reducing the technical requirements for operators.

[0037] In another embodiment (not shown in the figure), a guide groove is formed on the outer wall of the mounting base 100, and a guide rib 300 is provided on the inner wall of the mounting hole. This can also achieve a guiding fit and guide the mounting base 100 to be accurately inserted.

[0038] Based on the aforementioned guiding structure, the mounting base 100 can be accurately inserted into the mounting hole of the equipment housing. This effectively prevents installation difficulties or damage caused by positional misalignment or improper angle, ensuring the accuracy of the installation operation and a high first-time success rate, making it particularly suitable for blind insertion or space-constrained installation environments.

[0039] The present invention also includes an elastic sheet 200, which is disposed on the outer side wall of the mounting base 100. The elastic sheet 200 is used to keep the mounting base 100 and the equipment housing relatively fixed after the mounting base 100 is embedded in the equipment housing.

[0040] like Figures 2 to 4 As shown, in one embodiment, the elastic sheet 200 is provided with a fixed end 201 and a free end 202. The fixed end 201 is attached to the outer side wall of the mounting base 100, and the free end 202 extends obliquely away from the mounting base 100.

[0041] like Figure 4 As shown, in this embodiment, the elastic sheet 200 is a sheet-like structure made of metal or highly elastic engineering plastic. When the mounting base 100 is inserted into the mounting hole of the device housing, the free end 202 of the elastic sheet 200 first contacts and is compressed against the inner wall of the mounting hole. This compression force forces the free end 202 to displace towards the mounting base 100, causing the entire elastic sheet 200 to undergo elastic bending deformation. This elastic deformation allows the elastic sheet 200 to store rebound potential energy to restore its original shape, and applies a clamping force to the inner wall of the mounting hole through the free end 202. The static friction generated by this clamping force enables the mounting base 100 to be tool-free, quick-insertion, and tightly fixed in the mounting hole, while ensuring its long-term stability under vibration.

[0042] Furthermore, in one embodiment, two sets of elastic sheets 200 are provided, and the two sets of elastic sheets 200 are respectively provided on two opposite sidewalls of the mounting base 100.

[0043] In this embodiment, two sets of elastic plates 200 are located on the upper and lower side walls of the mounting base 100, respectively. Each set of elastic plates 200 has two pieces, and the two elastic plates 200 are located on the left and right sides of the guide rib 300 on the same side, respectively.

[0044] With the above arrangement, four sheet-like elastic plates 200 are positioned at the top, bottom, left, and right of the mounting base 100, forming a symmetrical and balanced elastic clamping force. This method ensures that the mounting base 100 maintains a stable centered position when subjected to external forces or vibrations from different directions, effectively preventing it from tilting, deflecting, or shaking, thereby greatly improving the reliability and stability of the connection.

[0045] In other embodiments (not shown in the figures), elastic sheets 200 can also be provided on the left and right side walls of the mounting base 100. This achieves fixation in the left and right directions, further improving the installation stability of the mounting base 100.

[0046] Furthermore, in one embodiment, the end of the free end 202 is formed with a friction contact surface 2021, which faces away from the mounting base 100 and is provided with a textured surface.

[0047] like Figure 4 As shown, in this embodiment, when the elastic sheet 200 is compressed by the mounting hole, the friction contact surface 2021 will fit tightly against the inner wall of the mounting hole. The textured surface increases the friction between the elastic sheet 200 and the mounting hole, making it less prone to loosening and further improving the installation stability of the mounting base 100.

[0048] like Figures 1 to 4 As shown, in one embodiment, the edge of the first surface 101 is provided with an outwardly extending limiting flange 1012.

[0049] By providing a limiting flange 1012, when the mounting base 100 is inserted into the mounting hole of the equipment housing, the limiting flange 1012 can abut against the outer surface of the equipment housing, thereby controlling the insertion depth and effectively preventing the mounting base 100 from being over-inserted. Furthermore, since the limiting flange 1012 structure is exposed outside the equipment housing, it provides a leverage point for using tools (such as pry bars or screwdrivers) when disassembling the mounting base 100. With the help of the limiting flange 1012, the mounting base 100 can be easily and conveniently pried out of the mounting hole, achieving quick assembly and disassembly.

[0050] In summary, this utility model, by embedding the mounting base 100 into the equipment housing, and allowing the insertion of wire harness terminals 500 on both sides of the mounting base 100, not only achieves wire harness docking but also fixes the docking position to the equipment housing, effectively avoiding the problems of loosening and wear caused by the wire harness terminals 500 being suspended or shaking. Furthermore, this fixing method ensures connection reliability while also facilitating the maintenance and replacement of the wire harness.

[0051] When the mounting base 100 is inserted into the mounting hole of the equipment housing, the elastic plate 200, provided on the mounting base 100, undergoes elastic deformation under compression and generates a rebound force. This rebound force is converted into a clamping force on the inner wall of the mounting hole, thereby achieving tool-less, quick-insertion tight fixation of the mounting base 100. This enables rapid installation and non-destructive disassembly of the mounting base 100, greatly improving the maintainability and reusability of the product.

[0052] By incorporating a guiding structure, the mounting base 100 is guided to accurately insert itself into the mounting hole of the equipment housing. This effectively prevents installation difficulties or damage caused by positional misalignment or improper angle, ensuring the accuracy of the installation operation and a high first-time success rate. It is especially suitable for blind insertion or space-constrained installation environments.

[0053] The above content is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wire harness terminal connection and fixing device, used to mate with a device housing having mounting holes and to fix the wire harness terminal to the device housing, characterized in that, include: The mounting base is configured to be embedded in the mounting holes of the device housing; The guide structure includes a guide rib and a guide groove that cooperate with each other. The guide rib and the guide groove are respectively disposed on the mounting base and the mounting hole to guide the mounting base to be accurately embedded in the mounting hole. An elastic sheet is disposed on the outer side wall of the mounting base and has a free end that can be elastically deformed. When the mounting base is inserted into the mounting hole, the free end elastically deforms and abuts against the inner wall of the mounting hole.

2. The wire harness terminal connection and fixing device according to claim 1, characterized in that: The elastic sheet is further provided with a fixed end, which is attached to the outer side wall of the mounting base, and the free end extends obliquely away from the mounting base.

3. The wire harness terminal connection and fixing device according to claim 2, characterized in that: The free end has a friction contact surface formed at its end, which faces away from the mounting base and has a textured surface.

4. The wire harness terminal connection and fixing device according to claim 2 or 3, characterized in that: The elastic sheet is provided in two sets, and the two sets of elastic sheets are respectively disposed on two opposite side walls of the mounting base to provide symmetrical elastic clamping force to the inner wall of the mounting hole of the device housing.

5. The wire harness terminal connection and fixing device according to claim 1, characterized in that: The guide rib is integrally formed with the mounting base.

6. The wire harness terminal connection and fixing device according to claim 5, characterized in that: The guide rib is provided with a guide slope.

7. The wire harness terminal connection and fixing device according to claim 1, characterized in that: The mounting base has a first side and a second side arranged opposite to each other. The first side has a first terminal interface, and the second side has a connector with a second terminal interface.

8. The wire harness terminal connection and fixing device according to claim 7, characterized in that: A conductive post is inserted between the first terminal interface and the second terminal interface.

9. The wire harness terminal connection and fixing device according to claim 8, characterized in that: The edge of the first surface is provided with an outwardly extending limiting flange.

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