Optical microswitch

Abstract

The utility model relates to microswitch technical field discloses a kind of optical microswitch, including: base, be used for the slot hole of light path passing and assembling slot are opened;Integral photoelectric sensor, including seat body, seat body is inserted into the cooperation in assembling slot with base, and seat body is provided with emitting tube and receiving tube, emitting tube and receiving tube are respectively arranged in the both sides of slot hole, seat body, emitting tube and receiving tube are integrally formed;And spring piece, it is located on base, and spring piece shields or away from slot hole.The utility model plays the technical of simplifying internal structure and improving the control precision of optical microswitch.

Description

Technical Field

[0001] This utility model belongs to the field of micro switch technology, specifically relating to an optical micro switch. Background Technology

[0002] In fields such as electronic equipment, industrial control, and automation devices, microswitches serve as crucial signal triggering elements, and their response speed, reliability, and control accuracy directly affect the overall system performance. Among them, optical microswitches utilize the principle of photoelectric induction to achieve switching functions.

[0003] Optical microswitches typically include a base on which a photoelectric sensor is mounted. The photoelectric sensor, as the core component of the optical microswitch, mainly consists of an emitting tube and a receiving tube. The emitting tube continuously emits a light beam of a specific wavelength, and the receiving tube receives the light beam in real time and converts it into an electrical signal. The optical microswitch achieves its closing and opening actions by connecting or blocking the optical path between the emitting tube and the receiving tube.

[0004] However, during the assembly process where the transmitting tube and receiving tube are fixed to the base by welding or bonding, cumulative errors such as assembly positioning reference deviations can easily occur. The light emission center of the transmitting tube and the receiving center of the receiving tube are not precisely aligned, which in turn affects the control accuracy of the optical micro switch. Utility Model Content

[0005] To address the shortcomings of the existing technology, this utility model provides an optical micro switch. In the integrated sensor, the transmitting tube and receiving tube are precisely aligned. By connecting the integrated sensor with the base, the internal structure can be simplified while reducing accumulated assembly errors and improving the control accuracy of the optical micro switch.

[0006] The technical effects to be achieved by this utility model are realized through the following technical aspects: This utility model provides an optical micro switch, comprising: a base with a slot for light to pass through and an assembly slot; an integrated photoelectric sensor including a base body, the base body being inserted and engaged with the base in the assembly slot, the base body being provided with a transmitting tube and a receiving tube, the transmitting tube and the receiving tube being respectively disposed on both sides of the slot, the base body, the transmitting tube and the receiving tube being integrally formed; and a spring piece disposed on the base, the spring piece blocking or moving away from the slot.

[0007] In some implementations, the base has an inner protrusion on the inner wall of the assembly slot, and the base is engaged with the seat body via the inner protrusion.

[0008] In some implementations, the base includes a sensing element, and when the seat body is inserted into the assembly slot, the seat body surrounds the outside of the sensing element.

[0009] In some implementations, the spring includes an extension portion located on one side of the base, and the extension portion has a through hole that coincides with or is offset from the slot, so as to connect or disconnect the optical path.

[0010] In some implementations, the spring includes a pressing part, and a button is provided on one side of the pressing part. The button presses the pressing part, and the pressing part causes the extension to move relative to the base.

[0011] In some implementations, a terminal is provided on the base, and the terminal is detachably connected to the spring.

[0012] In some implementations, the spring includes a bent portion with a mating groove, and the terminal includes: a first fixing portion with a slot, the first fixing portion passing through the spring and the spring engaging with the first fixing portion at the slot; and a second fixing portion passing through the spring and engaging with the spring in the mating groove.

[0013] In some implementations, the base has a receiving groove, the terminal passes through the receiving groove, and the terminal is adapted to the receiving groove.

[0014] In some implementations, a top shell is provided on one side of the base, and the top shell is detachably connected to the base.

[0015] In some implementations, the top shell has a connection hole, and the base has an outward protrusion that engages with the top shell at the connection hole.

[0016] In summary, this utility model has at least the following advantages: The optical micro switch provided by this utility model has a base, a transmitting tube, and a receiving tube integrally formed into an integrated photoelectric sensor. The integrated photoelectric sensor is then inserted and matched with the base in an assembly slot. The integrated photoelectric sensor and the base are precisely positioned and have a compact structure, which can reduce the cumulative error during the assembly process and thus improve the control accuracy of the optical micro switch.

[0017] When the optical microswitch is in the closed state, the spring is away from the slot, and the light beam emitted by the transmitting tube passes through the slot and is received by the receiving tube, thus the optical path is open. When the optical microswitch is switched to the open state, the spring blocks the slot, the light beam emitted by the transmitting tube is blocked by the spring, the receiving tube does not receive the light beam, and the optical path is blocked. The closing and opening operation of the optical microswitch achieves precise control. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the base and integrated photoelectric sensor in a specific embodiment of this utility model.

[0019] Figure 2 This is a front view of the base and the integrated photoelectric sensor according to a specific embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the structure of an integrated photoelectric sensor according to a specific embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the button and spring in a specific embodiment of the present utility model.

[0022] Figure 5 This is a schematic diagram of the overall structure of the optical micro-switch according to a specific embodiment of the present invention.

[0023] Figure 6 for Figure 5 A schematic diagram of the AA section.

[0024] Marked in the image: 1. Base; 11. Sensing part; 111. Slot; 12. Assembly slot; 121. Inner protrusion; 13. Receiving slot; 14. Outer protrusion; 2. Integrated photoelectric sensor; 21. Base; 22. Transmitter tube; 23. Receiver tube; 3. Spring; 31. Main body; 311. Positioning hole; 32. Extension part; 321. Through hole; 33. Pressing part; 34. Bending part; 341. Docking slot; 4. Button; 5. Terminal; 51. First fixing part; 511. Slot; 52. Second fixing part; 6. Top shell; 61. Connecting hole; 62. Movable hole. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are some, but not all, of the embodiments of this utility model.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0027] Example 1: Please see Figures 1-3 The optical micro switch of this invention has a compact and lightweight internal structure, which can reduce the cumulative assembly error and improve control accuracy.

[0028] The optical micro switch of this utility model includes a base 1, on which a slot 111 for light to pass through is provided, and an assembly slot 12.

[0029] An integrated photoelectric sensor 2 is mounted on the base 1. The integrated photoelectric sensor 2 includes a base 21, which is inserted into the assembly slot 12, allowing the base 21 to engage with the base 1. The base 21 is equipped with a transmitting tube 22 and a receiving tube 23, which are respectively located on both sides of the slot 111. Specifically, the transmitting tube 22 continuously emits a light beam, which passes through the slot 111, and the receiving tube 23 receives the light beam, thus establishing an optical path. The base 21, transmitting tube 22, and receiving tube 23 are integrally formed. In some specific embodiments, the base 21 is integrally formed with the transmitting tube 22 and receiving tube 23 through injection molding, ensuring that the light emission center of the transmitting tube 22 is aligned with the receiving center of the receiving tube 23, and reducing manufacturing costs. It is understandable that the transmitting tube 22 can be located on the left or right side of the slot 111, and the receiving tube 23 is similar. When it is necessary to ensure that the optical path is connected, the beam emitted by the transmitting tube 22 can be irradiated by the slot 111 to the receiving tube 23 and received by the receiving tube 23.

[0030] A spring 3 is provided on the base 21. The spring 3 blocks or moves away from the slot 111, and the connection or blockage of the optical path in the integrated photoelectric sensor 2 can be achieved by the movement of the spring 3. Specifically, when the optical micro switch is in the closed state, the spring 3 moves away from the slot 111, and the slot 111 is unobstructed. The light beam emitted by the transmitting tube 22 shines on the receiving tube 23 through the slot 111, and the receiving tube 23 receives the light beam, thus connecting the light beam. When the optical micro switch is switched to the open state, the spring 3 blocks the light beam emitted by the transmitting tube 22 from the slot 111, thus blocking the optical path. The optical micro switch realizes the switching operation of closing and opening through the dynamic change between the spring 3 and the slot 111, which is convenient to operate.

[0031] During the assembly of the optical micro switch, the base 21, the transmitting tube 22, and the receiving tube 23 are first integrally formed. Then, the base 21 of the integrated photoelectric sensor 2 is inserted into the base 1. The transmitting tube 22, the receiving tube 23, and the slot 111 can be precisely aligned, reducing the cumulative error during the assembly process. This ensures the stability of the light signal intensity of the receiving tube 23 when the light path is open, and reduces the light leakage phenomenon when the light path is blocked, thereby improving the control accuracy so that the optical micro switch can meet the stringent trigger accuracy requirements in scenarios.

[0032] Example 2: The difference between this embodiment and Embodiment 1 is that this embodiment further optimizes the structure of the integrated photoelectric sensor 2 and the spring sheet 3 of this utility model. Please refer to [link to relevant documentation]. Figures 2-4 .

[0033] Please see Figure 2 and Figure 3 In this embodiment, the base 1 has an inner protrusion 121 on the inner wall of the assembly groove 12. After the seat body 21 is inserted into the assembly groove 12, the seat body 21 is engaged with the base 1 through the inner protrusion 121. In some specific embodiments, the base 1 includes a sensing part 11 located in the assembly groove 12. The seat body 21 is U-shaped, and the transmitting tube 22 and the receiving tube 23 are arranged opposite to each other. After the seat body 21 is inserted into the assembly groove 12, the seat body 21 surrounds the outside of the sensing part 11 to cover the sensing part 11, and the inner protrusion 121 is distributed vertically with the sensing part 11 to help prevent the seat body 21 from detaching from the assembly groove 12. The seat body 21 and the base 1 are tightly connected, making the internal structure of the optical micro switch compact and simplified.

[0034] In a preferred embodiment, the spring 3 includes an extension 32 that extends into the assembly groove 12 and is located on one side of the sensing part 11. Specifically, the extension 32 can be L-shaped. A through hole 321 is provided on the extension 32, which may coincide with or be offset from the slot 111 to allow the optical path to be connected or disconnected. Specifically, when the through hole 321 coincides with the slot 111, the light beam emitted by the transmitting tube 22 passes through the slot 111 and the through hole 321 in sequence, and the receiving tube 23 receives the light beam, thus connecting the optical path. When the through hole 321 is offset from the slot 111, the light beam emitted by the transmitting tube 22 passes through the slot 111 and is blocked by the extension 32, and the receiving tube 23 does not receive the light beam, thus blocking the optical path. Through the dynamic change of the slot 111 coinciding with or offsetting the through hole 321, the function of closing and opening the optical micro-switch is realized.

[0035] Please see Figure 4 In some specific embodiments, the spring 3 includes a main body 31 and a pressing part 33. The main body 31 has a positioning hole 311, and the pressing part 33 is disposed in the positioning hole 311 and divides the positioning hole 311. Specifically, the main body 31, the pressing part 33 and the extension part 32 can be integrally formed, such as by bending and cutting an elastic sheet, which helps to reduce assembly errors and improve control accuracy.

[0036] A button 4 is provided on one side of the pressing part 33. When the button 4 presses down on the pressing part 33, the pressing part 33 drives the main body 31 and the extension part 32 to press down. The extension part 32 moves relative to the sensing part 11, and the through hole 321 is misaligned with the slot hole 111, so the optical micro switch is in the open state. When the button 4 is released, the spring 3 returns to its original position, the through hole 321 coincides with the slot hole 111, the optical path is connected, and the optical micro switch is in the closed state.

[0037] Example 3: The difference between this embodiment and the above embodiments is that this embodiment makes further structural optimizations to the base 1 of this utility model. Please refer to [link / reference]. Figures 4-6 .

[0038] Please see Figure 4 and Figure 6 In this embodiment, the spring piece 3 includes a bending portion 34. Specifically, the bending portion 34 is integrally formed with the main body 31. The bending portion 34 is bent downward into an arc shape, and a docking groove 341 is provided on the bending portion 34.

[0039] A terminal 5 is mounted on the base 1, and the terminal 5 is detachably connected to the spring piece 3. In some specific embodiments, the terminal 5 includes a first fixing part 51 and a second fixing part 52, which can be integrally formed. The first fixing part 51 has a slot 511, which can be a V-shaped groove. The first fixing part 51 passes through the positioning hole 311 of the spring piece 3, and the main body 31 is inserted into the slot 511 and engaged with the first fixing part 51 at the slot 511. Similarly, the second fixing part 52 passes through the positioning hole 311 of the spring piece 3, and the second fixing part 52 is inserted into the mating groove 341 and engaged with the bending part 34 at the mating groove 341. The engagement of the terminal 5 with the spring piece 3 provides stable support for the elastic deformation of the spring piece 3.

[0040] In some specific embodiments, the base 1 is provided with a receiving groove 13, and the terminal 5 is adapted to the receiving groove 13. Specifically, the first fixing part 51 and the second fixing part 52 are provided with multiple notches. When the receiving groove 13 is adapted to the first fixing part 51 and the second fixing part 52 respectively, it is beneficial to improve the stability of the assembly of the terminal 5 and the base 1.

[0041] Please see Figure 5 In a preferred embodiment, a top shell 6 is provided on one side of the base 1. The top shell 6 is detachably connected to the base 1. The button 4 passes through the top shell 6 and is movably connected to the top shell 6. Specifically, the top shell 6 has a movable hole 62 and a connecting hole 61. The button 4 passes through the movable hole 62. The base 1 has an external protrusion 14, which engages with the top shell 6 at the connecting hole 61, allowing for quick assembly of the base 1 and the top shell 6. After the base 1 and the top shell 6 are assembled, pressing the button 4 causes the pressing spring 3 to deform, causing the through hole 321 to misalign with the slot 111, thus breaking the optical path. After releasing the button 4, the spring 3 returns to its original position and drives the button 4 to rise within the movable hole 62. The through hole 321 returns to its state of coinciding with the slot 111, reconnecting the optical path. The optical micro switch then performs the functions of closing and opening.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0044] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0045] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0046] Although the description of this utility model has been given in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.

Claims

1. A photoelectric microswitch, characterized in that, include: The base (1) has a slot (111) for light to pass through and an assembly slot (12); An integrated photoelectric sensor (2) includes a base (21) that is inserted into and fitted with a base (1) within an assembly slot (12). The base (21) is provided with a transmitting tube (22) and a receiving tube (23), which are respectively located on both sides of the slot (111). The base (21), the transmitting tube (22), and the receiving tube (23) are integrally formed. A spring (3) is provided on the base (1), and the spring (3) covers or moves away from the slot (111).

2. The optical micro-switch according to claim 1, characterized in that, The base (1) has an inner protrusion (121) on the inner wall of the assembly groove (12), and the base (1) is engaged with the seat body (21) via the inner protrusion (121).

3. The optical micro-switch according to claim 2, characterized in that, The base (1) includes a sensing part (11), and when the seat body (21) is inserted into the assembly slot (12), the seat body (21) surrounds the outside of the sensing part (11).

4. The optical micro-switch according to claim 1, characterized in that, The spring (3) includes an extension (32) which is located on one side of the base (1). The extension (32) has a through hole (321) which overlaps with or is offset from the slot (111) so that the optical path is connected or disconnected.

5. The optical micro-switch according to claim 4, characterized in that, The spring (3) includes a pressing part (33), and a button (4) is provided on one side of the pressing part (33). The button (4) presses the pressing part (33), and the pressing part (33) drives the extension part (32) to move relative to the base (1).

6. The optical micro-switch according to claim 1, characterized in that, The base (1) is provided with a terminal (5), which is detachably connected to the spring (3).

7. The optical micro-switch according to claim 6, characterized in that, The spring (3) includes a bent portion (34), and a mating groove (341) is provided on the bent portion (34). The terminal (5) includes: A first fixing part (51) has a slot (511) through which the first fixing part (51) passes, and the spring piece (3) engages with the first fixing part (51) at the slot (511); and The second fixing part (52) penetrates the spring piece (3) and engages with the spring piece (3) in the docking groove (341).

8. The optical micro-switch according to claim 6, characterized in that, The base (1) has a receiving groove (13) and the terminal (5) passes through the receiving groove (13) and is adapted to the receiving groove (13).

9. The optical micro-switch according to claim 1, characterized in that, A top shell (6) is provided on one side of the base (1), and the top shell (6) is detachably connected to the base (1).

10. The optical micro-switch according to claim 9, characterized in that, The top shell (6) has a connecting hole (61), and the base (1) has an external protrusion (14). The external protrusion (14) engages with the top shell (6) at the connecting hole (61).

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