Hidden self-locking non-detachable magneto-dependent sensor

Abstract

The utility model discloses a hidden self-locking non-detachable magneto-dependent sensor, which comprises an upper shell and a lower shell, the upper shell is provided with a stretching cavity, two sides in the stretching cavity are provided with clamping cavities, the clamping cavities are internally provided with elastic hidden locking plates, the elastic hidden locking plates are provided with locking holes, and the elastic hidden locking plates are provided with locking holes. A guide part is arranged on the lower shell, locking pins are arranged on the two sides of the guide part, the guide part can stretch into the stretching cavity, and the locking pins can be clamped into the locking holes; according to the hidden self-locking non-detachable magneto-dependent sensor, the elastic hidden locking plate, the locking pin and the locking hole are arranged, accurate positioning and self-locking of the locking pin and the locking hole are rapidly achieved through self-guiding of the upper shell and the lower shell, and the phenomenon that gaps in the up-down dimension direction and the left-right dimension direction shake is avoided after assembly; and accurate control of the magneto-dependent sensor is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, and more specifically to a hidden self-locking non-detachable magnetic sensitive sensor. Background Art

[0002] At present, the existing magnetic sensor structure type is usually designed that the upper and lower shells are matched and assembled through oblique clips, but this structure has the following disadvantages: (1) Due to the lock card design structure, after assembly, the gap between the upper and lower shells is relatively large, which affects the sensor detection distance, thereby causing the sensitivity accuracy of the sensor assembly to be inaccurate, and there may be a risk of failure of the sensor function; (2) The strength of the clip and the clip window of this structure is insufficient, and it is easy to cause the shell lock mouth to crack and fail due to the interference force during the assembly process and the influence of materials and the environment; (3) It cannot prevent secondary disassembly, rework or repair, which affects the quality of product functions. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a hidden self-locking non-detachable magnetic sensor. The hidden self-locking non-detachable magnetic sensor is equipped with an elastic hidden locking plate, a locking pin and a locking hole, and utilizes the upper shell and the lower shell to guide themselves to quickly achieve precise positioning of the locking pin and the locking hole and achieve self-locking. After assembly, there is no gap or shaking in the up and down or left and right dimensions, thereby achieving precise control of the magnetic sensor.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A hidden self-locking non-detachable magnetic sensor comprises an upper shell and a lower shell, wherein the upper shell is provided with an insertion cavity, the insertion cavity is provided with snap-fitting cavities on both sides, the snap-fitting cavity is provided with an elastic hidden locking piece, the elastic hidden locking piece is provided with a locking hole, the lower shell is provided with a guide portion, the guide portion is provided with locking pins on both sides, the guide portion can be inserted into the insertion cavity, and the locking pin can be snapped into the locking hole.

[0006] Furthermore, a guide groove is provided on the inner side of the elastic hidden locking piece, and the guide groove extends from the end of the elastic hidden locking piece to the locking hole.

[0007] Furthermore, observation holes are provided on both sides of the upper shell, the observation holes penetrate into the clamping cavity, and the through holes are aligned with the locking holes.

[0008] Furthermore, the upper shell includes a plug-in portion, a clamping portion and a mounting column connected in sequence, the mounting column is located below the clamping portion, the insertion cavity is located at the bottom of the clamping portion and on the outside of the mounting column, the observation hole is located on both sides of the clamping portion, and the mounting column extends into the lower shell.

[0009] It further includes a plurality of pins, a PCBA, an IC chip and a magnet. The plurality of pins are located in the upper shell and one end is located on the plug-in portion, and the other end is located on the mounting column. The PCBA and the IC chip are welded and mounted on the mounting column, and the magnet is mounted on the mounting column.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. During the sensor assembly process, the upper and lower shells are quickly positioned and plugged in through the insertion cavity of the upper shell and the guide part of the lower shell, and then accurately positioned and self-locked through the locking pin and locking hole;

[0012] 2. By adopting the locking structure of locking pins and locking holes, the assembly accuracy of the upper and lower shells is guaranteed to be within 0.05mm. After assembly, there is no gap or shaking in the up and down, left and right dimensions, and the magnetic sensor can be precisely controlled;

[0013] 3. By adopting elastic hidden locking pieces and its own flexible elastic structure, self-locking can be achieved very easily during assembly. There is no need for traditional assembly that relies on the interference fit force to achieve installation locking, thus avoiding damage and cracking of the shell during installation.

[0014] 4. After the locking pin and the locking hole are self-locked, it can effectively prevent secondary disassembly by human beings and avoid the quality risks of rework and repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0016] Figure 1 This is a structural diagram of a hidden self-locking non-detachable magnetic sensor;

[0017] Figure 2 The exploded view is a hidden self-locking non-detachable magnetic sensor;

[0018] Figure 3 It is a structural schematic diagram of the upper shell;

[0019] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0020] Markings in the figure are: 1. upper shell; 101. plug-in part; 102. snap-on part; 103. mounting column; 104. insertion cavity; 105. snap-on cavity; 106. elastic hidden locking piece; 107. locking hole; 108. guide groove; 109. observation hole; 2. lower shell; 201. guide part; 202. locking column pin; 3. plug pin; 4. magnet. DETAILED DESCRIPTION

[0021] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "several" and "a number" is two or more, unless otherwise clearly and specifically defined.

[0023] A hidden self-locking non-detachable magnetic sensor, such as Figure 1-4 As shown, it comprises an upper shell 1 and a lower shell 2. An insertion cavity 104 is provided on the upper shell 1, and the insertion cavity 104 is provided with snap-fitting cavities 105 on both sides, and an elastic hidden locking piece 106 is provided in the snap-fitting cavity 105, and a locking hole 107 is provided on the elastic hidden locking piece 106, and a guide portion 201 is provided on the lower shell 2, and locking pins 202 are provided on both sides of the guide portion 201, and the guide portion 201 can be inserted into the insertion cavity 104, and the locking pin 202 can be snapped into the locking hole 107.

[0024] Preferably, Figure 3-4 As shown, a guide groove 108 is provided on the inner side of the elastic hidden locking piece 106, and the guide groove 108 extends from the end of the elastic hidden locking piece 106 to the locking hole 107, so that when the lower shell 2 and the upper shell 1 are assembled, the locking pin 202 can be guided by the guide groove 108, so that the locking pin 202 can be quickly positioned and inserted into the locking hole 107.

[0025] Preferably, Figure 1-2As shown, observation holes 109 are provided on both sides of the upper shell 1, and the observation holes 109 penetrate into the clamping cavity 105, and the through holes are aligned with the locking holes 107;

[0026] Specifically, by providing the observation hole 109 , when the lower shell 2 and the upper shell 1 are assembled, it is possible to check through the observation hole 109 whether the locking pin 202 is fully inserted into the locking hole 107 , thereby realizing a quick judgment on whether the assembly is completed.

[0027] Preferably, Figure 2 As shown, the upper shell 1 includes a plug-in portion 101, a clamping portion 102 and a mounting column 103 which are connected in sequence. The mounting column 103 is located below the clamping portion 102. The insertion cavity 104 is located at the bottom of the clamping portion 102 and on the outside of the mounting column 103. The observation holes 109 are located on both sides of the clamping portion 102. The mounting column 103 extends into the lower shell 2.

[0028] Preferably, it also includes a plurality of pins 3, a PCBA, an IC chip and a magnet 4, wherein the plurality of pins 3 are located in the upper shell 1 and one end of the pins 3 is located on the plug-in portion 101, and the other end is located on the mounting column 103, the PCBA and the IC chip are welded and connected and mounted on the mounting column 103, and the magnet 4 is mounted on the mounting column 103.

[0029] advantage:

[0030] 1. During the sensor assembly process, the upper and lower shells are quickly positioned and plugged together through the insertion cavity 104 of the upper shell 1 and the guide portion 201 of the lower shell 2, and then the locking pin 202 and the locking hole 107 are used to accurately position and self-lock.

[0031] 2. By adopting the locking structure of the locking pin 202 and the locking hole 107, the assembly accuracy of the upper and lower shells is guaranteed to be within 0.05mm. After assembly, there is no gap or shaking in the up and down or left and right dimensions, and the magnetic sensor can be precisely controlled:

[0032] 3. By adopting the elastic hidden lock piece 106 with its own flexible elastic structure, self-locking can be achieved very easily during assembly, without the need for traditional assembly that requires strong interference fit force to achieve installation locking, thus avoiding damage and cracking of the shell during installation;

[0033] 4. After the locking pin 202 and the locking hole 107 are self-locked, it can effectively prevent secondary disassembly by human beings, avoiding the quality risks of rework and repair.

[0034] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A hidden self-locking non-detachable magnetic sensor, characterized in that: It includes an upper shell and a lower shell, the upper shell is provided with an insertion cavity, the insertion cavity is provided with snap-in cavities on both sides, the snap-in cavity is provided with an elastic hidden locking sheet, the elastic hidden locking sheet is provided with a locking hole, the lower shell is provided with a guide part, the guide part is provided with locking pins on both sides, the guide part can be extended into the insertion cavity, and the locking pin can be snapped into the locking hole.

2. A hidden self-locking non-detachable magnetic sensor according to claim 1, characterized in that: A guide groove is arranged on the inner side of the elastic hidden locking piece, and the guide groove extends from the end of the elastic hidden locking piece to the locking hole.

3. The hidden self-locking non-detachable magnetic sensor according to claim 1, characterized in that: Observation holes are arranged on both sides of the upper shell, the observation holes penetrate into the clamping cavity, and the through holes are aligned with the locking holes.

4. The hidden self-locking non-detachable magnetic sensor according to claim 3, characterized in that: The upper shell includes a plug-in portion, a clamping portion and a mounting column connected in sequence, the mounting column is located below the clamping portion, the insertion cavity is located at the bottom of the clamping portion and outside the mounting column, the observation holes are located on both sides of the clamping portion, and the mounting column extends into the lower shell.

5. The hidden self-locking non-detachable magnetic sensor according to claim 4, characterized in that: It also includes a number of pins, a PCBA, an IC chip and a magnet. The pins are located in the upper shell and one end is located on the plug-in portion, and the other end is located on the mounting column. The PCBA and the IC chip are welded and installed on the mounting column, and the magnet is installed on the mounting column.

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