An assembly structure for the inner hole of a car button housing and a switch assembly
By employing a snap-fit and plug-in channel mechanism in automotive buttons, the gap between the buttons is controlled, solving the problems of button jamming and wobbling, improving the feel and stability of operation, and optimizing production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN LINJVE IND INVESTMENTS
- Filing Date
- 2025-05-22
- Publication Date
- 2026-05-26
Smart Images
Figure CN224288091U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of automotive seat adjustment switches, and in particular to an assembly structure for the inner hole of an automotive button housing and a switch assembly. Background Technology
[0002] Car seats can be adjusted in two ways: electric and manual. With the continuous development of technology, more and more cars are adopting electric seats. Electric seats are mainly controlled through seat adjustment switches. Specifically, electric seats are operated by buttons, while conventional manual seats require a wrench for adjustment. Compared with manual seats, electric seats are more convenient to use and provide a better user experience.
[0003] Buttons are a crucial component of seat adjustment switches, directly impacting the tactile feel during operation. Existing buttons typically use a snap-fit structure to fix them to the casing, but this conventional connection method still has several shortcomings. For example, some buttons become stuck after assembly, preventing normal operation and affecting switch functionality. Other buttons tend to wobble after assembly, resulting in a tactile feedback when the user operates them. Since users cannot directly observe the button's touch condition when adjusting the seat, it's difficult to determine whether the adjustment has been completed, thus affecting the user experience.
[0004] Therefore, improvements to existing technologies are necessary.
[0005] The above information is provided as background information only to aid in understanding this disclosure and does not constitute an assertion or admission that any of the above content can be used as prior art relative to this disclosure. Utility Model Content
[0006] This utility model provides an assembly structure for the inner hole of an automotive button housing and a switch assembly to solve the problems of button jamming and wobbling in the prior art.
[0007] To achieve the above objectives, in a first aspect, this utility model provides a technical solution for assembling the inner hole of an automotive button housing, which adopts the following technical solution:
[0008] An assembly structure for the inner hole of a car button housing, comprising:
[0009] Button body;
[0010] A snap fastener is attached to the button body.
[0011] The device includes a housing with a plug-in channel. The buckle engages with the plug-in channel and is movably fastened to the housing. The inner wall of the plug-in channel and the surface of the buckle form a fitting gap D, where D ranges from 0.02mm to 0.08mm.
[0012] Preferably, the insertion / removal channel includes an abutment section and a draft section connected in sequence, and the mating gap D is formed between the abutment section and the surface of the snap fastener.
[0013] Preferably, the abutment segment is configured as two segments, with the two abutment segments located at opposite ends of the insertion / removal channel.
[0014] Preferably, the height of the abutment section is not less than 10mm.
[0015] Preferably, the draft angle of the draft section is 0.3°-2°.
[0016] Preferably, the outer shell is provided with a hollow column, the hollow column is hollow inside and open at both ends, and the insertion channel is formed inside the hollow column.
[0017] Preferably, the buckle includes:
[0018] One end of the cylindrical part is connected to the button body;
[0019] And a snap-fit portion is provided at the other end of the column portion, the outer periphery of the snap-fit portion protruding relative to the column portion.
[0020] Preferably, the outer shell is provided with an elastic fastener, and the snap-fit part is movably snapped with the elastic fastener. When the snap-fit part is snapped with the elastic fastener, one side surface of the snap-fit part overlaps with the end face of the elastic fastener.
[0021] Preferably, the overlap between the snap-fit portion and the elastic fastener is 0.3mm-0.8mm.
[0022] Secondly, this utility model provides a switch assembly with the following technical solution:
[0023] A switch assembly, including the aforementioned automotive button housing inner hole assembly structure.
[0024] Compared with the prior art, the present invention has the following beneficial effects:
[0025] The automotive button housing inner hole assembly structure and switch assembly provided by this utility model, by inserting the buckle into the insertion channel and setting the fitting gap between the insertion channel and the buckle between 0.03mm and 0.05mm, can make the buckle and the housing fit tightly. On the one hand, the button body is less likely to have jamming problems, and on the other hand, the button body is less likely to shake freely, reducing structural interference, thereby improving the operating feel and optimizing the operating experience.
[0026] This invention has other features and advantages that will be apparent from or will be set forth in detail in the accompanying drawings and the following detailed description, which together serve to explain the particular principles of this invention. Attached Figure Description
[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0028] Figure 1 This is a schematic diagram of the assembly relationship of the inner hole assembly structure of the automobile button housing provided in Embodiment 1 of this utility model;
[0029] Figure 2 This is a cross-sectional view of the button body provided in Embodiment 1 of this utility model;
[0030] Figure 3 This is a schematic diagram of the button body provided in Embodiment 1 of this utility model;
[0031] Figure 4 This is a schematic diagram of the switch assembly provided in Embodiment 2 of this utility model.
[0032] Figure label:
[0033] 1. Button body;
[0034] 2. Buckle; 21. Column part; 22. Connecting part;
[0035] 3. Outer shell;
[0036] 4. Insertion / removal channel; 41. Abutment section; 42. Ejection section;
[0037] 5. Hollow column;
[0038] 6. Flexible fasteners; 61. Guide slope;
[0039] 7. Switch module. Detailed Implementation
[0040] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0041] In the description of this utility model, it should be understood that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component that is centrally positioned therein. When a component is considered to be "set" on another component, it can be directly set on the other component or there may be a component that is centrally positioned therein.
[0042] Furthermore, terms such as "long," "short," "inner," and "outer" indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings. They are used only for the convenience of describing this utility model and do not indicate or imply that the device or component referred to must have this specific orientation or operate in a specific orientational configuration. Therefore, they should not be construed as limitations of this utility model.
[0043] The following is in conjunction with the appendix Figure 1-4 The technical solution of this utility model will be further illustrated through specific implementation methods.
[0044] Example 1:
[0045] Please refer to Figure 1 This utility model provides an inner hole assembly structure for an automotive button housing to solve the problem of buttons easily shaking. Specifically, the inner hole assembly structure mainly includes a button body 1, a buckle 2, and a housing 3.
[0046] The button body 1 has a shell structure with a long and narrow extended profile, so that the user can rotate the button body 1 to trigger the switch. In other embodiments, the button can also adopt other profile shapes. The specific shape of the button body 1 is not limited here.
[0047] Meanwhile, the buckle 2 is connected to the button body 1, and the button body 1 is movably mounted on the outer shell 3 through the buckle 2 to achieve a rotatable assembly effect; specifically, the outer shell 3 has a plug-in channel 4, which runs through the inner and outer sides of the outer shell 3; based on this, the buckle 2 and the plug-in channel 4 are plugged in and out, and are movably fastened to the outer shell 3. At this time, the buckle 2 can rotate within the plug-in channel 4, thereby giving the button body 1 a degree of freedom of rotation.
[0048] Based on this, combined Figure 2In order to reduce the problem of button body 1 shaking and improve its operation feel, in this embodiment, the inner wall of the insertion channel 4 and the surface of the buckle 2 form a mating gap D. Optionally, the value of D is in the range of 0.02mm-0.08mm.
[0049] Understandably, when the fit gap D is less than 0.02mm, it may cause significant friction between the latch 2 and the inner wall of the insertion channel 4, resulting in jamming of the rotational movement of the button body 1 and causing the button body 1 to malfunction. Conversely, when the fit gap D is greater than 0.08mm, it will cause the fit gap between the latch 2 and the insertion channel 4 to be too large, making the latch 2 prone to wobbling within the insertion channel 4, thus causing the button body 1 to wobble. Therefore, by controlling the fit gap between the latch 2 and the insertion channel 4 to be between 0.02mm and 0.08mm, the button body 1 can rotate smoothly, and the latch 2 and the button body 1 are less prone to large-scale wobble. The operating feel and feedback feel of the button body 1 are simultaneously optimized and improved.
[0050] For example, the specific value of the fitting clearance D can be 0.02mm, 0.03mm, 0.04mm, 0.05mm, 0.06mm, 0.07mm or 0.08mm. In this embodiment, 0.03mm is used as an example. The specific value of the fitting clearance D is not limited here. In another embodiment, the value range of the fitting clearance D can also be selected between any two of the above parameter values.
[0051] Based on the above settings, a seat adjustment button solution was obtained that has a smooth adjustment feel and is not prone to shaking.
[0052] Furthermore, continue to refer to Figure 2 The insertion and removal channel 4 includes an abutting section 41 and a drafting section 42 connected in sequence. The drafting section 42 is closer to the button body 1 than the abutting section 41. The inner wall of the abutting section 41 is flat, while the inner wall of the drafting section 42 is inclined. The drafting section 42 is mainly used to meet the drafting processing requirements of the inner hole features. At the same time, the mating gap D is formed between the surfaces of the abutting section 41 and the buckle 2, and the inner wall of the abutting section 41 is parallel to the outer surface of the buckle 2.
[0053] Based on the above configuration, on the one hand, the outer shell 3 is usually made of plastic and is formed by injection molding. At this time, the draft section 42 can facilitate the demolding effect of the insertion channel 4 during the demolding process, thus making it less likely to damage the inner wall of the insertion channel 4; on the other hand, the abutment section 41 can form a cooperative relationship with the buckle 2 to prevent the structure from shaking.
[0054] Here, by configuring the draft section 42 and the abutment section 41 inside the insertion and extraction channel 4, the demolding requirements of the injection molded part can be met, the molding quality of the outer shell 3 can be improved, and the fitting requirements of the buckle 2 during installation can also be met, resulting in a reasonable structural design.
[0055] In this embodiment, the abutment section 41 is configured as two sections, which are located at both ends of the insertion and extraction channel 4 in the length direction and on the upper and lower sides of the extraction section 42. At this time, the two abutment sections 41 can achieve multi-point cooperation with the buckle 2, so that when the buckle 2 cooperates with the inner wall of the insertion and extraction channel 4, the positional accuracy is optimized and improved.
[0056] Correspondingly, the outer surface of the buckle 2 has a first section, a second section, and a third section that are connected in sequence and whose outer diameters are gradually reduced. The surfaces of the first and third sections are flat, while the surface of the second section is inclined. The first and third sections are respectively engaged by two abutting sections 41.
[0057] By adopting the above method, the first, second and third segments are equivalent to forming a stepped mating surface on the outside of the buckle 2. The first segment, which is flat, can achieve multi-point mating with the insertion channel 4 in both the upper and lower directions, so that the assembly is tight and not easy to shake. In addition, the inclined second segment can form a certain draft angle, making it easy for the buckle 2 to be demolded during the injection molding process.
[0058] Furthermore, the height of the abutment section 41 is not less than 10mm. It is understandable that when the height of the abutment section 41 is less than 10mm, due to the difference in assembly actions, the mating range between the abutment section 41 and the buckle 2 may be too small, affecting the mating effect between the two; when the height of the abutment section 41 is greater than or equal to 10mm, it can have a sufficient mating span, which is conducive to achieving precise mating with the buckle 2.
[0059] For example, the overall height of the abutment section 41 can be 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 25mm, 30mm, 35mm, etc. The overall height of the abutment section 41 can be adjusted according to actual needs, and no specific restrictions are made here.
[0060] It should be explained that the height of the abutment section 41 can also be understood as the length it occupies on the buckle 2.
[0061] Optionally, the draft angle of the draft section 42 is 0.3°-2°. Understandably, when the angle of the draft section 42 is less than 0.3°, the draft angle is too small, which can lead to difficulties in drafting; while when the draft angle of the draft section 42 is greater than 2°, the draft angle is too large, which may affect the shape and size of the component and deviate from the design dimensions. Therefore, when the draft angle is 0.3°-3°, it can meet both the drafting requirements and the appearance and structural requirements.
[0062] For example, the draft angle can be 0.3°, 0.4°, 0.5°, 0.6°, 0.7°, 0.8°, 0.9°, 1.0°, 1.5° or 2.0°. No specific parameter is limited here. In another embodiment, the draft angle can be selected between any two of the above parameter values.
[0063] Furthermore, referring to Figure 2 The outer casing 3 is provided with a hollow column 5. One end of the hollow column 5 is integrally connected to the outer casing 3, and the hollow column 5 is located on the side of the outer casing 3 near the button body 1. The hollow column 5 is hollow inside and open at both ends, and the insertion channel 4 is formed inside the hollow column 5.
[0064] Based on the above configuration, the hollow column 5 has a certain length, which can form a deeper insertion channel 4. The deeper insertion channel 4 can extend the abutting section 41 and the drafting section 42 so as to fit tightly with the buckle 2. In addition, the hollow column 5 can also lift the button body 1 to a certain height, so that the button body 1 is separated from the outer shell 3 by one end, so that the user can touch the button body 1, thus optimizing and improving the user experience.
[0065] Furthermore, combined Figure 3 The buckle 2 includes a column portion 21 and a snap-fit portion 22. One end of the column portion 21 is connected to the button body 1, and the snap-fit portion 22 is located at the other end of the column portion 21. The outer periphery of the snap-fit portion 22 protrudes from the column portion 21, thus forming a buckle 2 structure similar to a mushroom head, which enables the buckle 2 function.
[0066] At the same time, looking back Figure 2 The outer casing 3 is provided with an elastic fastener 6, which is integrally connected to the outer casing 3 and located on the side of the outer casing 3 facing away from the button body 1. The elastic fastener 6 is arranged adjacent to the insertion channel 4, and the elastic fastener 6 can swing elastically relative to the outer casing 3. During the process of inserting the buckle 2 into the insertion channel 4, the snap-fit part 22 can open the elastic fastener 6 until it is snapped onto the end of the elastic fastener 6, realizing the movable snap-fit with the elastic fastener 6. When the snap-fit part 22 is snapped onto the elastic fastener 6, one side surface of the snap-fit part 22 overlaps the end face of the elastic fastener 6.
[0067] Optionally, the elastic fastener 6 can be a spring sheet structure or an elastic arm structure. Any shape that can achieve elastic fastening can be used. No specific structure of the elastic fastener 6 is limited here. Regardless of the specific structure of the elastic fastener 6, it should be included in the scope of this interpretation of the elastic fastener 6.
[0068] Based on the above settings, the buckle 2 only needs to be inserted into place once during installation, making the installation quick and convenient.
[0069] Optionally, the overlap between the snap-fit part 22 and the elastic fastener 6 is 0.3mm-0.8mm. For ease of understanding, the overlap is defined as L. When the overlap is less than 0.3mm, the snap-fit 2 and the elastic fastener 6 may not be securely fastened, and under long-term use, the snap-fit 2 may loosen. When the overlap is greater than 0.8mm, the overlap may be too large, requiring the snap-fit part 22 to be larger, increasing the deformation of the elastic fastener 6, which may cause the elastic fastener 6 to crack and fail, also resulting in unstable fastening.
[0070] Therefore, by setting the overlap between the snap-fit part 22 and the elastic fastener 6 between 0.3mm and 0.8mm, a stable fastening effect can be achieved, while fastening failure can be avoided at the same time, and the structural stability is relatively reasonable.
[0071] For example, the specific parameters of the overlap amount can be 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, or 0.8mm. In this embodiment, an overlap amount of 0.5mm is used as an example, and the specific parameters of the overlap amount are not limited here. In another embodiment, the value range of the overlap amount can be selected between any two of the above parameter values.
[0072] In addition, the inner wall of the elastic fastener 6 has a guide slope 61, and the snap-fit part 22 slides with the guide slope 61. At this time, the guide slope 61 helps to open the elastic fastener 6, making the installation process smoother and the assembly simpler.
[0073] Furthermore, there are multiple elastic fasteners 6, such as two, four, or six. It is understood that the specific number of elastic fasteners 6 can be adjusted according to actual needs, and no specific limitation is made here. Based on this, multiple elastic fasteners 6 are arranged circumferentially along the opening of the insertion channel 4, and multiple elastic fasteners 6 form a bayonet in their natural state. The outline of the bayonet is smaller than the size outline of the snap-fit part 22. By applying external force, the snap-fit part 22 passes through the bayonet and is fastened to the end of the elastic fastener 6, realizing the active snap-fit process.
[0074] In the above embodiment, the multiple elastic fasteners 6 form an integral structure that can fasten and fix the snap-fit part 22 in multiple directions, making the snap-fit 2 more stable and less prone to loosening during assembly.
[0075] In this embodiment, there are two elastic fasteners 6, which are arranged opposite to each other. The two elastic fasteners 6 are sufficient to meet the most basic snap-fit stability, and they have the advantages of convenient molding, easy demolding, and low molding cost.
[0076] The technical solution provided in this embodiment has the following beneficial effects:
[0077] 1. By reasonably limiting the gap between the latch 2 and the insertion channel 4, the possibility of button body 1 shaking can be reduced, thus improving the user experience.
[0078] 2. The buckle 2 is easy to assemble, which effectively improves production efficiency and reduces labor costs;
[0079] 3. The button body 1 is stably assembled and not easily loosened, and the assembly effect is optimized and improved.
[0080] Example 2:
[0081] Based on Embodiment 1, features not explained in this embodiment are explained using the methods described in Embodiment 1, and will not be repeated here. This embodiment provides a switch assembly using the following technical solution:
[0082] Reference Figure 4 A switch assembly includes the automotive button housing inner hole assembly structure shown in Embodiment 1, and also includes a switch module 7. The switch module 7 includes components such as a circuit board, a slider, and a rocker switch. The specific structure of the switch module 7 is prior art and will not be described in detail here. The switch module 7 is disposed in the housing 3 and connected to the button body 1. By moving the button body 1, the rocker switch can be triggered, thereby realizing the control function.
[0083] Therefore, the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. An assembly structure for the inner hole of a car button housing, characterized in that, include: Button body (1); The buckle (2) is connected to the button body (1); The outer shell (3) has a plug-in channel (4), the buckle (2) is plugged into the plug-in channel (4) and is movably fastened to the outer shell (3). The inner wall of the plug-in channel (4) and the surface of the buckle (2) form a fitting gap D, the value of D is in the range of 0.02mm-0.08mm.
2. The automotive button housing inner hole assembly structure according to claim 1, characterized in that, The insertion / removal channel (4) includes an abutment section (41) and a draft section (42) connected in sequence, and the mating gap D is formed between the surfaces of the abutment section (41) and the buckle (2).
3. The automotive button housing inner hole assembly structure according to claim 2, characterized in that, The abutment section (41) is configured as two sections, and the two abutment sections (41) are located at the two ends of the insertion and removal channel (4).
4. The automotive button housing inner hole assembly structure according to claim 2, characterized in that, The height of the abutment section (41) is not less than 10 mm.
5. The automotive button housing inner hole assembly structure according to claim 2, characterized in that, The draft angle of the draft section (42) is 0.3°-2°.
6. The automotive button housing inner hole assembly structure according to claim 1, characterized in that, The outer shell (3) is provided with a hollow column (5), which is hollow inside and open at both ends. The insertion and removal channel (4) is formed inside the hollow column (5).
7. The automotive button housing inner hole assembly structure according to claim 1, characterized in that, The buckle (2) includes: One end of the column part (21) is connected to the button body (1); And a snap-fit portion (22) is provided at the other end of the column portion (21), the outer periphery of the snap-fit portion (22) protruding relative to the column portion (21).
8. The automotive button housing inner hole assembly structure according to claim 7, characterized in that, The outer shell (3) is provided with an elastic fastener (6), and the snap-fit part (22) is movably snapped with the elastic fastener (6). When the snap-fit part (22) is snapped with the elastic fastener (6), one side surface of the snap-fit part (22) overlaps the end face of the elastic fastener (6).
9. The automotive button housing inner hole assembly structure according to claim 8, characterized in that, The engagement amount between the snap-fit part (22) and the elastic fastener (6) is 0.3mm-0.8mm.
10. A switch assembly, characterized in that: The automotive button housing inner hole assembly structure includes any one of claims 1-9.