Auxiliary locking structure for microswitch and automobile HUD system
By setting the auxiliary locking structure of the limit frame and the crushing rib strip in the installation area of the micro switch, the problem of twisting wear and shaking of the micro switch during the bolt tightening process is solved, and its fixing stability and service life are improved .
Patent Information
- Application Number
- CN202421311865.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-06-11
AI Technical Summary
The micro switch is affected by torque during the bolt tightening process, causing torsional wear and jitter, damaging the internal structure and reducing service life.
The auxiliary locking structure is adopted that combines the limit frame and the crushing rib strip. The micro switch is limited to the limit fixation through the limit frame and the crushing rib strip, limiting its freedom on the plane perpendicular to the axis of the bolt via hole. to prevent torsional wear and jitter.
Effectively prevent wear and shaking caused by torque during the bolt tightening process, enhancing the fixing stability and service life of the micro switch.
Smart Images
Figure 00000000_0000_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of micro switches, and in particular to an auxiliary locking structure for a micro switch and an automobile HUD system. Background Art
[0002] The head up display (HUD) is also called the car head-up display system. It uses the principle of optical reflection to project the car's driving assistance information, navigation information, check control information and advanced driver assistance system (ADAS) information onto the front windshield or above the tip of the front engine hood about 2 meters away. At the same time, it can also display warning information from various driving assistance systems, such as lane departure warnings and pedestrian avoidance warnings from the night vision assistance system with pedestrian recognition function, etc., to avoid the driver from frequently looking down at the instrument or the car screen while driving, which plays a good auxiliary role in driving safety.
[0003] Before using the HUD system, the projection position needs to be adjusted to the optimal position under different driver perspectives by a motor. The required adjustment accuracy is relatively high. Therefore, the HUD system requires a microswitch to provide a zero position signal. Since the microswitch device is relatively small and the wiring harness contact point is relatively weak, based on the characteristics of the microswitch, the mounting area of the microswitch needs to be easy to position and tighten. In the prior art, most HUD systems use bolts to fix the microswitch. During the bolt tightening process, the microswitch is easily affected by torque, resulting in torsional wear and jitter. If the wear and jitter are too large, the internal structure of the microswitch will be damaged, affecting the use of the microswitch and reducing the service life of the microswitch. Utility Model Content
[0004] The present application provides an auxiliary locking structure for a micro switch and an automobile HUD system, which solves the technical problem in the prior art that the micro switch is affected by torque during the bolt tightening process, resulting in torsional wear and jitter, which in turn causes damage to the internal structure.
[0005] In a first aspect, according to an embodiment of the present application, an auxiliary locking structure for a micro switch is provided, wherein the micro switch is disposed in an application device, and the micro switch comprises a switch body and a positioning structure and a bolt through hole disposed on the switch body, wherein the auxiliary locking structure comprises:
[0006] A limit frame, the limit frame is arranged on the housing of the application device and encloses the installation area of the micro switch, a threaded hole and a positioning hole are arranged in the installation area, and the setting position of the threaded hole corresponds to the setting position of the bolt through hole, and the setting position of the positioning hole corresponds to the setting position of the positioning structure;
[0007] A plurality of crushing ribs are arranged on the inner side surface of the limit frame to limit the freedom of the micro switch on a plane perpendicular to the axis of the bolt through hole, wherein the inner side surface of the limit frame is the surface of the limit frame facing the micro switch.
[0008] In some embodiments of the present application, the limiting frame includes a first limiting plate, a second limiting plate and a third limiting plate, the second limiting plate is vertically arranged to the first limiting plate, and one end of the second limiting plate is connected to one end of the first limiting plate, the third limiting plate is parallel to the first limiting plate, the second limiting plate is located between the first limiting plate and the third limiting plate, and the length of the second limiting plate is smaller than the distance between the first limiting plate and the third limiting plate, and the first limiting plate, the second limiting plate and the third limiting plate enclose the installation area.
[0009] In some embodiments of the present application, the positioning structure includes a first positioning column and a second positioning column, and one first positioning column and one second positioning column are disposed on one side surface of the micro switch, and the first positioning column and the second positioning column are disposed diagonally.
[0010] The positioning holes include a first positioning hole and a second positioning hole. The first positioning hole is disposed at a position corresponding to the first positioning column, and the second positioning hole is disposed at a position corresponding to the second positioning column.
[0011] In some embodiments of the present application, the first positioning post and the second positioning post have different shapes and sizes.
[0012] In some embodiments of the present application, the second positioning hole is disposed at a connecting corner between the first limiting plate and the second limiting plate.
[0013] In some embodiments of the present application, the threaded hole is arranged on a side of the installation area close to the first limiting plate.
[0014] In some embodiments of the present application, a crushing rib is respectively provided on the inner side surfaces of the first limiting plate, the second limiting plate and the third limiting plate, and the crushing rib on the first limiting plate is arranged opposite to the crushing rib on the third limiting plate.
[0015] In some embodiments of the present application, the cross-sectional shape of the crushing rib is triangular or arc-shaped.
[0016] In some embodiments of the present application, the crushing ribs and the limiting frame are an integral structure.
[0017] In a second aspect, according to an embodiment of the present application, an automobile HUD system is provided, comprising: a micro switch and the auxiliary locking structure for the micro switch as described in the first aspect, wherein the micro switch is limited and fixed by the auxiliary locking structure and fixedly connected by bolts.
[0018] The beneficial effects of the embodiments of the present application are as follows:
[0019] The auxiliary locking structure adopts a limiting structure that combines a limiting frame with a crushing rib, which enhances the fixing stability of the micro switch, can effectively prevent the micro switch from being affected by torque during the bolt tightening process, causing torsional wear and jitter, and improves the installation convenience and accuracy of the micro switch. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0021] Figure 1 A schematic diagram of the structure of a micro switch provided in an embodiment of the present application;
[0022] Figure 2 A structural schematic diagram of an auxiliary locking structure for a micro switch provided in an embodiment of the present application;
[0023] Figure 3 A schematic diagram of a structure in which a micro switch provided in an embodiment of the present application is fixed by an auxiliary locking structure for a micro switch;
[0024] Explanation of the accompanying drawings: 1 is the application equipment, 11 is the shell of the application equipment 1, 2 is the micro switch, 21 is the switch body, 22 is the positioning structure, 221 is the first positioning column, 222 is the second positioning column, 23 is the bolt through hole, 3 is the auxiliary locking structure, 31 is the limit frame, 311 is the inner side of the limit frame 31, 312 is the first limit plate, 313 is the second limit plate, 314 is the third limit plate, 32 is the installation area, 33 is the threaded hole, 34 is the positioning hole, 341 is the first positioning hole, 342 is the second positioning hole, 35 is the crushing rib, and 4 is the bolt. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present utility model.
[0026] It should be noted that the terms "including" and "having" and any variations thereof in the embodiments of the present application and the accompanying drawings are intended to cover non-exclusive inclusions. For example, a series of structures are included, which is not limited to the listed structures, but may optionally include structures not listed, or may optionally include other components inherent to these structures.
[0027] The embodiment of the present application discloses an auxiliary locking structure for a micro switch, so as to prevent the micro switch from being affected by torque during bolt tightening, resulting in torsional wear and vibration, thereby increasing the service life of the micro switch.
[0028] The auxiliary locking structure is an auxiliary structure for fixing the micro switch bolt. Figure 1 As shown, the micro switch 2 includes a switch body 21, a positioning structure 22 and a bolt through hole 23, the positioning structure 22 and the bolt through hole 23 are respectively arranged on the switch body 21, the positioning structure 22 is used for the installation and positioning of the micro switch 2, and the bolt through hole 23 is used to realize the bolt locking of the micro switch 2. The micro switch 2 is arranged in the application equipment. It should be noted that the "application equipment" in the embodiment of the present application refers to the equipment used by the micro switch 2, which can be equipment in various fields. For example, the application equipment can be an electrical equipment in the field of household appliances, and the micro switch 2 is used to detect the state of the machine and control the operation of various functions, such as detecting whether the lid of the washing machine is closed, controlling the heating process of the induction cooker, etc.; the application equipment can be equipment in the field of mechanical engineering, and the micro switch 2 is used to realize the control of mechanical operation, such as controlling the start and stop of the machine by detecting the arrival or departure of the object on the conveyor belt; the application equipment can also be equipment in the field of automation control, and the micro switch 2 is combined with automation control equipment such as programmable logic controller (PLC), which can be used to realize the functions of object position detection, state detection and control in the automation system.
[0029] Figure 2 FIG. 1 shows an auxiliary locking structure for a micro switch provided according to an embodiment of the present application. Figure 2As shown, the auxiliary locking structure 3 mainly includes a limit frame 31 and a crushing rib 35, which is arranged on the shell 11 of the application equipment 1 used for the micro switch. The limit frame 31 defines the coarse installation identification area of the micro switch, which is used for the preliminary positioning of the micro switch. The crushing rib 35 defines the fine installation identification area of the micro switch, which is used for the precise positioning of the micro switch.
[0030] Specifically, Figure 1 – Figure 3 As shown, the limit frame 31 is on the housing 11 of the application device 1, enclosing the installation area 32 of the micro switch 2. It should be noted that the present application does not limit the setting position of the installation area 32 on the housing 11 of the application device 1, and it needs to be set according to the specific use of the micro switch 2 and the specific structure of the housing 11 of the application device 1. The limit frame 31 is designed to match the positioning structure 22 and the bolt through hole 23 provided by the micro switch 2. A threaded hole 33 and a positioning hole 34 are provided in the installation area 32, and the setting position of the threaded hole 33 corresponds to the setting position of the bolt through hole 23, and the setting position of the positioning hole 34 corresponds to the setting position of the positioning structure 22. Therefore, the micro switch 2 can be initially installed and positioned on the installation area 32 by setting the positioning hole 34 and the positioning structure 22, and the micro switch 2 can be bolted to the application device 1 by passing the bolt 4 through the bolt through hole 23 and the threaded hole 33 in sequence and fixing them.
[0031] In some embodiments, Figure 2 and Figure 3As shown, the limiting frame 31 includes a first limiting plate 312, a second limiting plate 313 and a third limiting plate 314, which enclose a mounting area 32 surrounded on three sides. The second limiting plate 313 is arranged perpendicular to the first limiting plate 312, and one end of the second limiting plate 313 is connected to one end of the first limiting plate 312, forming a right-angle limiting structure for limiting one corner of the switch body 21 of the micro switch 2. The third limiting plate 314 is arranged parallel to the first limiting plate 312, and the first limiting plate 312 and the third limiting plate 314 are combined to form a parallel limiting structure for limiting one of the two opposite sides of the switch body 21. Furthermore, the second limit plate 313 is located between the first limit plate 312 and the third limit plate 314, and the length of the second limit plate 313 is smaller than the distance between the first limit plate 312 and the third limit plate 314, that is, both ends of the parallel limit structure are provided with opening structures, but the size of the opening structure at the end with the second limit plate 313 is smaller than the size of the opening structure at the end without the second limit plate 313. Corresponding to the structure of the switch body 21 of the micro switch 2, the button of the switch body 21 is arranged at one end of one side thereof, and the multiple terminals of the switch body 21 are arranged at intervals on the other entire side thereof, so the side where the terminals are set can only be placed at the opening structure at the end without the second limit plate 313. Therefore, the limit frame 31 designed in this way also has a certain installation error prevention property.
[0032] It should be noted that the “vertical” in the present application is not absolutely vertical, but can be 90°±5°. Similarly, the “parallel” in the present application is not absolutely parallel, but can be 180°±5°.
[0033] In other embodiments, Figure 1 As shown, the positioning structure 22 specifically includes a first positioning column 221 and a second positioning column 222, wherein a first positioning column 221 and a second positioning column 222 are disposed on one side surface of the micro switch 2, and the first positioning column 221 and the second positioning column 222 are disposed diagonally. Figure 2 As shown, the positioning hole 34 specifically includes a first positioning hole 341 and a second positioning hole 342. The first positioning hole 341 is provided at a position corresponding to the first positioning post 221, and the second positioning hole 342 is provided at a position corresponding to the second positioning post 222. When the micro switch 2 is installed, the micro switch 2 is positioned by inserting the first positioning post 221 into the first positioning hole 341 and inserting the second positioning post 222 into the second positioning hole 342.
[0034] Further, such as Figure 1As shown, the first positioning column 221 and the second positioning column 222 have different shapes and sizes, which makes it easier to distinguish the first positioning column 221 and the second positioning column 222, thereby achieving rapid alignment of the first positioning column 221 relative to the first positioning hole 341 and the second positioning column 222 relative to the second positioning hole 342.
[0035] In addition, if Figure 1 and Figure 2 As shown, the second positioning hole 342 is arranged at the connecting corner of the first limiting plate 312 and the second limiting plate 313, and correspondingly, the second positioning column 222 is arranged at a corner of the switch body 21, so that the corner of the switch body 21 can be quickly positioned by the cooperation between the second positioning column 222 and the second positioning hole 342.
[0036] In the embodiments of the present application, Figure 2 and Figure 3 As shown, the auxiliary locking structure is also provided with a crushing rib 35 to further accurately position the micro switch 2. Specifically, a plurality of crushing ribs 35 are provided on the inner side surface 311 of the limit frame 31. Through the provision of the plurality of crushing ribs 35, the freedom of the micro switch 2 on the plane perpendicular to the axis of the bolt through hole 23 is limited, and the micro switch 2 is positioned and locked to prevent the micro switch 2 from being worn and jittered excessively due to the influence of torque during the bolt locking process, thereby damaging the internal structure. It can also effectively solve the problem in the prior art that the fastening effect of the micro switch 2 on the plane perpendicular to the axis of the bolt through hole 23 is too dependent on the friction provided by the bolt fastening, and enhance the installation stability of the micro switch 2. It should be noted that the inner side surface 311 of the limit frame 31 refers to the surface of the limit frame 31 facing the micro switch 2.
[0037] In some embodiments, Figure 2 and Figure 3 As shown, a crushing rib 35 is respectively arranged on the inner side of the first limit plate 312, the second limit plate 313 and the third limit plate 314, and the crushing rib 35 on the first limit plate 312 is arranged opposite to the crushing rib 35 on the third limit plate 314. On the plane perpendicular to the axis of the bolt through hole 23, the crushing rib 35 on the second limit plate 313 cooperates with the arrangement of the positioning hole 34 to limit the degree of freedom of the micro switch 2 in the direction perpendicular to the second limit plate 313, and the two crushing ribs 35 arranged oppositely on the first limit plate 312 and the third limit plate 314 limit the degree of freedom of the micro switch 2 in the direction parallel to the second limit plate 313, thereby realizing the limitation of the degree of freedom of the micro switch 2 in various directions on the plane.
[0038] Further, such as Figure 2 and Figure 3As shown, the threaded hole 33 is arranged on one side of the installation area 32 close to the first limit plate 312, that is, the setting position of the threaded hole 33 corresponds to the first limit plate 312 and the second limit plate 313, so that during the bolt locking process, the limiting force is mainly applied to the micro switch 2 through the compression ribs 35 on the first limit plate 312 and the second limit plate 313, which is more conducive to the limiting stability of the micro switch 2 during the installation process.
[0039] In the specific implementation process, Figure 2 As shown, the cross-sectional shape of the crushing rib 35 can be a triangle or an arc. Further, the crushing rib 35 and the limiting frame 31 are an integral structure, and the crushing rib 35 is a protruding structure on the limiting frame 31, which is easy to process.
[0040] In this embodiment, combined with Figure 1 – Figure 3 As shown, the limit frame 31 limits the rough identification area of the installation of the micro switch 2, and the limit frame 31 is surrounded on three sides, and has a certain degree of installation error prevention; the crushing rib 35 limits the precise identification area of the installation of the micro switch, and cooperates with the positioning structure 22 to limit and tighten the micro switch 2 on a plane perpendicular to the axis of the bolt through hole 23 during the installation and tightening process, while preventing the micro switch 2 from being affected by torque during the bolt locking process, causing excessive wear and vibration, thereby damaging the internal structure; the micro switch 2 is fastened to the housing 11 of the application device 1 by bolts 4, which further limits the degree of freedom of the micro switch 2.
[0041] The present application also discloses a vehicle HUD system, such as Figure 1 – Figure 3 As shown, the automobile HUD system includes: a micro switch 2 and an auxiliary locking structure 3 for the micro switch, the micro switch 2 is limited and fixed by the auxiliary locking structure 3, and is fixedly connected by a bolt 4. The micro switch 2 is used to provide a zero position function for the motor to ensure the accuracy of each motor adjustment of the mirror position. Specifically, the micro switch 2 sends a signal under the action of the contact force of the mirror structure (semi-finished main mirror) in the automobile HUD system, telling the motor that the position is 0. After receiving the signal, the motor can determine how many revolutions of the reverse rotation can drive the main mirror to the agreed eye box position, thereby eliminating the error of the motor rotation amount to reach the same position through the setting of the micro switch 2.
[0042] Among them, the auxiliary locking structure 3 for the micro switch in this embodiment mainly includes a limit frame 31 and a crushing rib 35, and its structure and principle are the same as those of the auxiliary locking structure embodiment for the micro switch. For the sake of brief description, for the parts not mentioned in the embodiment of the automobile HUD system, reference can be made to the corresponding contents in the auxiliary locking structure embodiment for the micro switch. In addition, it should be noted and understood that the main structure of the automobile HUD system is the application device 1 in the auxiliary locking structure embodiment for the micro switch.
[0043] In summary, the present application discloses an auxiliary locking structure for a micro switch and an automobile HUD system, which are beneficial to the positioning and installation of the micro switch, and the auxiliary locking structure adopts a limiting structure combining a limiting frame and a compression rib, which improves the limiting ability of the micro switch on a plane perpendicular to the axis of the bolt through hole, and enhances the fixing stability of the micro switch. It can also effectively prevent the micro switch from being affected by torque during the bolt tightening process, resulting in torsional wear and jitter, which not only enhances the tightening performance of the micro switch, but also enhances the stability of the micro switch to adapt to different working conditions.
[0044] Those skilled in the art will understand that the drawings are only schematic diagrams of an embodiment, and the components in the drawings are not necessarily necessary for implementing the present invention. It should also be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.
[0045] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, in the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does 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 cannot be understood as a limitation on the present utility model.
[0046] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the utility model, which are used to illustrate the technical solution of the utility model, rather than to limit it. The protection scope of the utility model is not limited thereto. Although the utility model is described in detail with reference to the above-mentioned embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solution recorded in the above-mentioned embodiments within the technical scope disclosed by the utility model, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution of the embodiment of the utility model, and should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. An auxiliary locking structure for a micro switch, characterized in that: The micro switch is arranged in the application equipment, and the micro switch comprises a switch body, a positioning structure and a bolt through hole arranged on the switch body, and the auxiliary locking structure comprises: A limit frame, the limit frame is arranged on the housing of the application device and encloses the installation area of the micro switch, a threaded hole and a positioning hole are arranged in the installation area, and the setting position of the threaded hole corresponds to the setting position of the bolt through hole, and the setting position of the positioning hole corresponds to the setting position of the positioning structure; A plurality of crushing ribs are arranged on the inner side surface of the limit frame to limit the freedom of the micro switch on a plane perpendicular to the axis of the bolt through hole, wherein the inner side surface of the limit frame is the surface of the limit frame facing the micro switch.
2. The auxiliary locking structure for a micro switch according to claim 1, characterized in that: The limiting frame includes a first limiting plate, a second limiting plate and a third limiting plate, the second limiting plate is vertically arranged with the first limiting plate, and one end of the second limiting plate is connected with one end of the first limiting plate, the third limiting plate is parallelly arranged with the first limiting plate, the second limiting plate is located between the first limiting plate and the third limiting plate, and the length of the second limiting plate is smaller than the distance between the first limiting plate and the third limiting plate, the first limiting plate, the second limiting plate and the third limiting plate enclose the installation area.
3. The auxiliary locking structure for a micro switch according to claim 2, characterized in that: The positioning structure includes a first positioning column and a second positioning column. A first positioning column and a second positioning column are arranged on one side surface of the micro switch, and the first positioning column and the second positioning column are arranged diagonally. The positioning holes include a first positioning hole and a second positioning hole. The first positioning hole is disposed at a position corresponding to the first positioning column, and the second positioning hole is disposed at a position corresponding to the second positioning column.
4. The auxiliary locking structure for a micro switch according to claim 3, characterized in that: The first positioning post and the second positioning post have different shapes and sizes.
5. The auxiliary locking structure for a micro switch according to claim 3, characterized in that: The second positioning hole is arranged at a connecting corner between the first limiting plate and the second limiting plate.
6. The auxiliary locking structure for a micro switch according to claim 3, characterized in that: The threaded hole is arranged on a side of the installation area close to the first limiting plate.
7. The auxiliary locking structure for a micro switch according to claim 2, characterized in that: One of the crushing ribs is disposed on the inner side surfaces of the first limiting plate, the second limiting plate and the third limiting plate, respectively, and the crushing rib on the first limiting plate is disposed opposite to the crushing rib on the third limiting plate.
8. The auxiliary locking structure for a micro switch according to claim 1, characterized in that: The cross-sectional shape of the crushing rib is triangular or arc-shaped.
9. The auxiliary locking structure for a micro switch according to claim 1, characterized in that: The crushing ribs and the limiting frame are an integrated structure.
10. An automobile HUD system, characterized in that: It comprises: a micro switch and an auxiliary locking structure for the micro switch according to any one of claims 1 to 9, wherein the micro switch is limited and fixed by the auxiliary locking structure and is fixedly connected by bolts.