Front-side light-transmitting proximity sensor
By setting a translucent cover and a translucent hole on the front side of the proximity sensor, the problem of difficult observation and poor sealing of the indicator light in the prior art is solved, and a better user experience and extended life is achieved.
Patent Information
- Application Number
- CN202420924929.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-04-29
AI Technical Summary
The indicator lights of the existing proximity sensors are usually set at the tail position, making it difficult for users to observe the prompt state, and the sealing performance between the tail and the cable is poor, resulting in the entry of water and gas that affects the service life of the indicator light.
Design a front side light-transmitting proximity sensor, by setting a light-transmitting hole and indicator light in the outer cover, so that the light of the indicator light can be exposed from the outside of the cover, and the structure of the positioning seat and the coil frame ensures the fixedness of the coil. and sealing.
Improves the observability and service life of the indicator light, reduces the installation position requirements of the proximity sensor, and enhances practicality.
Smart Images
Figure CN222232698U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a detection switch, in particular to a front-side light-transmitting proximity sensor. Background Art
[0002] Proximity sensors are a general term for sensors that replace contact detection methods such as limit switches and are designed to detect objects without contact. They can convert the movement and presence information of the detected object into electrical signals.
[0003] A proximity sensor is usually provided with an indicator light to indicate the working status of the proximity sensor. However, the indicator light on the existing proximity sensor is usually set at the tail position. During use, due to the influence of the installation position, it is difficult for the user to observe the prompt status of the indicator light, and the cable used to connect to the external signal is connected from the tail of the proximity sensor. The sealing performance of the matching position between the tail of the proximity sensor and the cable is not good, and external moisture can easily enter from this position, affecting the service life of the indicator light. Utility Model Content
[0004] Based on this, it is necessary to provide a front light-transmitting proximity sensor to address the deficiencies in the prior art.
[0005] The technical solution of the utility model is: a front-side light-transmitting proximity sensor, which includes a sleeve, an outer cover that is installed in cooperation with the sleeve and is used for light transmission, a first circuit board arranged between the sleeve and the outer cover, a second circuit board connected to the first circuit board circuit, a positioning seat fixed to the second circuit board, a coil frame installed on the positioning seat, and a coil installed on the coil frame, the second circuit board, the coil frame and the coil are arranged inside the outer cover, the first circuit board limits the second circuit board in the axial direction, an indicator light is provided in the middle of the second circuit board, a light-transmitting hole is provided on the positioning seat, the light-transmitting hole is connected to the internal space of the outer cover, and the indicator light on the second circuit board is aligned with the light-transmitting hole and extends into the light-transmitting hole.
[0006] In one embodiment, the outer cover includes a first main body and a second main body connected to one end of the first main body, a cover plate is provided at one end of the sleeve, an assembly groove is provided on the sleeve, the assembly groove extends to an end of the sleeve away from the cover plate, and the second main body of the outer cover is inserted into the inner side of the assembly groove of the sleeve.
[0007] In one of the embodiments, two balls are further included, and the sleeve squeezes the balls in a horizontal direction so that the balls press the first circuit board.
[0008] In one embodiment, two positioning holes are provided on the second main body, and the positioning holes penetrate inward from the outer surface of the second main body. Two arc-shaped bayonet holes are provided on the first circuit board, and the two bayonet holes are arranged on both sides of the first circuit board near one end of the second circuit board. Each of the balls corresponds to a positioning hole of the outer cover and a bayonet hole of the first circuit board respectively, and the ball is clamped in the positioning hole and the bayonet hole of the first circuit board, and the sleeve limits the ball from the outside.
[0009] In one embodiment, the sleeve is provided with two guide posts on the inner wall, and both guide posts are provided with a slot, one end of the first circuit board is stuck in the slot, and the other end of the first circuit board extends into the outer cover.
[0010] In one embodiment, the slots on the two guide posts of the sleeve are arranged opposite to each other, and the slots extend to an end of the guide post away from the cover plate.
[0011] In one embodiment, the outer diameter of the second main body portion is smaller than that of the first main body portion, so that a limiting surface is formed between the first main body portion and the second main body portion, and the sleeve abuts against the limiting surface.
[0012] In one embodiment, the first circuit board and the second circuit board are perpendicular to each other, and the first circuit board and the second circuit board are fixed by welding.
[0013] In one embodiment, the positioning seat includes a base plate, a plurality of limit plates connected to the outer side of the base plate, and a limit column connected to the middle of the base plate. The limit plates are combined to form a fixed groove, the limit column is arranged in the fixed groove, the light-transmitting hole passes through the base plate and the limit column, and the coil frame is installed in the fixed groove of the positioning seat.
[0014] In one embodiment, the coil frame is arranged in an I-shape, and a wire groove is provided on the coil frame and distributed around a part thereof. The coil is installed on the wire groove. The coil frame is also provided with an avoidance hole, and the avoidance hole penetrates the coil frame in a vertical direction. The limiting column of the positioning seat passes through the avoidance hole of the coil frame.
[0015] The beneficial effect of the front-side light-transmitting proximity sensor of the utility model is that: by arranging a light-transmitting outer cover on the front side of the proximity sensor, an indicator light is provided in the middle of the second circuit board, and a light-transmitting hole is provided on the positioning seat. During use, the light emitted by the indicator light passes through the light-transmitting hole, and the user may observe the indication information of the indicator light from the outside of the outer cover. The utility model reduces the installation position requirements of the proximity sensor and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the structure of the front light-transmitting proximity sensor of the utility model;
[0017] Figure 2 , Figure 3 for Figure 1 Exploded views of the proximity sensor at different angles shown;
[0018] Figure 4 for Figure 1 A schematic structural diagram of the sleeve of the proximity sensor is shown. DETAILED DESCRIPTION
[0019] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.
[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0021] 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 the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0022] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0023] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0024] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.
[0025] See also Figures 1 to 4 The utility model provides a front light-transmitting proximity sensor, comprising a sleeve 10, an outer cover 20 mounted in cooperation with the sleeve 10, a first circuit board 30 arranged between the sleeve 10 and the outer cover 20, two balls 80 passing through the outer cover 20 in a horizontal direction and limiting both sides of the first circuit board 30, a second circuit board 40 connected to the first circuit board 30 in circuit, a positioning seat 50 fixed to the second circuit board 40, a coil frame 60 mounted on the positioning seat 50, and a coil 70 mounted on the coil frame 60. The second circuit board 40, the coil frame 60 and the coil 70 are arranged inside the outer cover 20, and the first circuit board 30 limits the second circuit board 40 in an axial direction.
[0026] A cover plate 12 is provided at one end of the sleeve 10, and an assembly groove 11 is provided on the sleeve 10. The assembly groove 11 extends to the end of the sleeve 10 away from the cover plate 12. Two guide columns 13 are provided on the inner wall of the sleeve 10. Both guide columns 13 are provided with a clamping groove 14. The notches of the clamping grooves 14 on the two guide columns 13 are arranged opposite to each other, and the clamping groove 14 extends to the end of the guide column 13 away from the cover plate 12.
[0027] The outer cover 20 includes a first main body portion 21 and a second main body portion 22 connected to one end of the first main body portion 21. The outer diameter of the second main body portion 22 is smaller than that of the first main body portion 21, so that a limiting surface 211 is formed between the first main body portion 21 and the second main body portion 22. The outer cover 20 is provided with a receiving groove 23 extending inward from the second main body portion 22. The second main body portion 22 is provided with two positioning holes 221. The positioning holes 221 penetrate inward from the outer surface of the second main body portion 22.
[0028] The first circuit board 30 is provided with two arc-shaped bayonet holes 31, which are arranged on both sides of the first circuit board 30 near one end of the second circuit board 40. The outer diameter of the second circuit board 40 is slightly smaller than the inner diameter of the receiving groove 23, and an indicator light 41 is provided in the middle of one side of the second circuit board 40 near the coil frame 60. In this embodiment, the first circuit board 30 and the second circuit board 40 are perpendicular to each other, and some solder joints on the first circuit board 30 are directly soldered to some solder joints on the second circuit board 40.
[0029] The positioning seat 50 includes a base plate 51, a plurality of limit plates 52 connected to the outside of the base plate 51, and a limit column 53 connected to the middle of the base plate 51. The limit plates 52 are combined to form a fixed groove 531. The limit column 53 is arranged in the fixed groove 531. The positioning seat 50 is provided with a light-transmitting hole 54, and the light-transmitting hole 54 passes through the base plate 51 and the limit column 53.
[0030] The coil frame 60 is arranged in an I-shape, and is provided with a wire groove 61 distributed around a portion thereof. The coil 70 is mounted on the wire groove 61 . The coil frame 60 is also provided with an avoidance hole 62 , and the avoidance hole 62 penetrates the coil frame 60 in a vertical direction.
[0031] During assembly, the coil frame 60 is installed in the fixing groove 531 of the positioning seat 50, the limiting column 53 of the positioning seat 50 passes through the avoidance hole 62 of the coil frame 60, the light-transmitting hole 54 is connected to the internal space of the outer cover 20, and the indicator light 41 on the second circuit board 40 is aligned with the light-transmitting hole 54 and extends into the light-transmitting hole 54. The second main body 22 of the outer cover 20 is inserted into the inner side of the assembly groove 11 of the sleeve 10 and fixed by glue. The sleeve 10 is pressed against the limiting surface 211. One end of the first circuit board 30 is inserted into the groove 14. The other end of the first circuit board 30 extends into the outer cover 20. Each of the balls 80 corresponds to a positioning hole 221 of the outer cover 20 and a bayonet 31 of the first circuit board 30. The balls 80 are inserted into the positioning holes 221 and the bayonet 31 of the first circuit board 30. The sleeve 10 limits the balls 80 from the outside, and the balls 80 limit the first circuit board 30 in the axial direction.
[0032] In this embodiment, the ball 80 may be made of silicone, rubber, etc., which has a certain elasticity. The sleeve 10 squeezes the ball 80 in the horizontal direction so that the ball 80 presses the first circuit board 30. The outer cover 20 is made of a material with a certain light transmittance. The light emitted by the indicator light 41 passes through the light-transmitting hole 54. The user may observe the indication information of the indicator light 41 from the outside of the outer cover 20.
[0033] The beneficial effect of the front light-transmitting proximity sensor of the utility model is that: by arranging a light-transmitting outer cover 20 on the front side of the proximity sensor, an indicator light 41 is provided in the middle of the second circuit board 40, and a light-transmitting hole 54 is provided on the positioning seat 50. During use, the light emitted by the indicator light 41 passes through the light-transmitting hole 54, and the user may observe the indication information of the indicator light 41 from the outside of the outer cover 20. The utility model reduces the installation position requirements of the proximity sensor and has strong practicality.
[0034] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0035] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A front light-transmitting proximity sensor, characterized in that: The invention comprises a sleeve, an outer cover which is installed in cooperation with the sleeve and is used for light transmission, a first circuit board arranged between the sleeve and the outer cover, a second circuit board connected to the first circuit board circuit, a positioning seat fixed to the second circuit board, a coil frame installed on the positioning seat, and a coil installed on the coil frame. The second circuit board, the coil frame and the coil are arranged inside the outer cover. The first circuit board limits the second circuit board in the axial direction. An indicator light is arranged in the middle of the second circuit board. A light transmission hole is arranged on the positioning seat. The light transmission hole is connected to the internal space of the outer cover. The indicator light on the second circuit board is aligned with the light transmission hole and extends into the light transmission hole.
2. The front light-transmitting proximity sensor according to claim 1, characterized in that: The outer cover includes a first main body and a second main body connected to one end of the first main body. A cover plate is provided at one end of the sleeve. An assembly groove is provided on the sleeve. The assembly groove extends to an end of the sleeve away from the cover plate. The second main body of the outer cover is inserted into the inner side of the assembly groove of the sleeve.
3. The front light-transmitting proximity sensor according to claim 2, characterized in that: It also includes two balls, and the sleeve squeezes the balls in the horizontal direction so that the balls press the first circuit board.
4. The front light-transmitting proximity sensor according to claim 3, characterized in that: The second main body is provided with two positioning holes, and the positioning holes penetrate inward from the outer surface of the second main body. The first circuit board is provided with two arc-shaped bayonet holes, and the two bayonet holes are arranged on both sides of the first circuit board near one end of the second circuit board. Each of the balls corresponds to a positioning hole of the outer cover and a bayonet hole of the first circuit board respectively. The ball is clamped in the positioning hole and the bayonet hole of the first circuit board, and the sleeve limits the ball from the outside.
5. The front light-transmitting proximity sensor according to claim 2, characterized in that: The sleeve is provided with two guide columns on the inner wall, and both guide columns are provided with a clamping groove, one end of the first circuit board is clamped in the clamping groove, and the other end of the first circuit board extends into the outer cover.
6. The front light-transmitting proximity sensor according to claim 5, characterized in that: The clamping grooves on the two guide posts of the sleeve are arranged opposite to each other, and the clamping grooves extend to one end of the guide post away from the cover plate.
7. The front light-transmitting proximity sensor according to claim 2, characterized in that: The outer diameter of the second main body portion is smaller than that of the first main body portion, so that a limiting surface is formed between the first main body portion and the second main body portion, and the sleeve abuts against the limiting surface.
8. The front light-transmitting proximity sensor according to claim 1, characterized in that: The first circuit board and the second circuit board are perpendicular to each other, and the first circuit board and the second circuit board are fixed by welding.
9. The front light-transmitting proximity sensor according to claim 1, characterized in that: The positioning seat includes a base plate, a plurality of limit plates connected to the outer side of the base plate, and a limit column connected to the middle of the base plate. The limit plates are combined to form a fixed groove, the limit column is arranged in the fixed groove, the light-transmitting hole passes through the base plate and the limit column, and the coil frame is installed in the fixed groove of the positioning seat.
10. The front light-transmitting proximity sensor according to claim 9, characterized in that: The coil frame is arranged in an I-shape, and is provided with a wire groove distributed around a part thereof. The coil is mounted on the wire groove. The coil frame is also provided with an avoidance hole, which penetrates the coil frame in a vertical direction, and the limiting column of the positioning seat passes through the avoidance hole of the coil frame.