Inlaid exhaust transmission type light-operated sensor

Abstract

The utility model relates to the technical field of light-operated sensors, in particular to an embedded exhaust transmission type light-operated sensor which comprises a plastic box, a placing groove is formed in the top of the plastic box, a PCB is placed in the placing groove, a plastic cover is fixedly installed on the top of the plastic box, a flange edge is integrally formed on the outer wall of the lower end of the plastic cover, and the flange edge is provided with an exhaust hole. According to the sensor, the eight exhaust holes are additionally formed in the flange edge of the plastic cover, so that bubbles can be discharged in time, generation of epoxy resin and air holes in the box sticking surface of the plastic box cover is reduced, the fluidity of the epoxy resin in a product structure is effectively improved, the production time is shortened, the production efficiency is improved, and the product quality is effectively improved; and the consistency and high quality of the dustproof and waterproof characteristic standard of the product are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of light control sensors, in particular to an inlaid exhaust type transmissive light control sensor. Background Technique

[0002] The existing assembly structure of the sensor plastic box, plastic cover and PCB assembly does not have an exhaust design. During the resin filling process, bubbles are easily generated and the bubbles adhere to the wall surface of the plastic box cover, resulting in a decrease in the fluidity of the resin and an increase in production man-hours; and the epoxy resin cannot be completely bonded to the plastic box cover, increasing the quality hidden danger that the dust-proof and waterproof characteristics do not meet the standards. For this reason, we propose an inlaid exhaust type transmissive light control sensor to solve the above problems. Content of the Utility Model

[0003] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose an inlaid exhaust type transmissive light control sensor.

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

[0005] Design an inlaid exhaust type transmissive light control sensor, including a plastic box. A placement groove is opened at the top of the plastic box, and a PCB is placed in the placement groove. A plastic cover is fixedly installed at the top of the plastic box. A flange edge is integrally formed on the outer wall of the lower end of the plastic cover, and a plurality of exhaust holes are penetrated through the top of the flange edge. The exhaust holes, the inside and the inside and bottom of the plastic cover are all filled with epoxy resin, and the bottom of the epoxy resin abuts against the PCB. An infrared emission unit and an infrared reception unit are installed in two induction grooves of the plastic box, and the pins of the infrared emission unit and the infrared reception unit penetrate through and are welded to the PCB. A wire is welded to the upper end surface of the PCB, and the wire penetrates through the epoxy resin and extends above the plastic cover.

[0006] Preferably, the number of the exhaust holes is 8. The 8 exhaust holes are divided into four pairs, and the four pairs of exhaust holes are respectively arranged on four sides of the flange edge.

[0007] Preferably, the clamping structure includes a buckle and a clamping groove. Buckles are integrally formed on the outer walls of the front and rear end faces of the flange edge. Clamping grooves communicating with the placement groove are opened on the front and rear end faces of the plastic box, and the buckles are clamped in the clamping grooves.

[0008] Preferably, shielding covers are sleeved on the outer walls of the infrared emission unit and the infrared reception unit, and infrared passing slits are opened on the end faces of a pair of shielding covers close to each other.

[0009] Preferably, ear plates are integrally formed on both sides of the plastic box, and insertion holes for inserting screws during installation are opened on the ear plates.

[0010] Preferably, a pair of clamping strips are integrally formed on the front and rear inner walls of the pair of induction grooves, and chamfers for facilitating the insertion of the shielding cover are provided on the sides of the upper ends of the pair of clamping strips close to each other.

[0011] Preferably, a cross support is integrally formed at the bottom of the induction groove, and the top of the cross support abuts against the shielding cover.

[0012] An inlaid exhaust type transmissive photoelectric sensor proposed by the present utility model has the beneficial effects that: by adding 8 exhaust holes on the flange edge of the plastic cover, the sensor ensures that air bubbles can be discharged in time, reduces the generation of air holes on the bonding surface between the epoxy resin and the plastic box cover, effectively improves the fluidity of the epoxy resin in the product structure, reduces production man-hours and improves production efficiency, effectively improves the product quality, and ensures the consistency and high quality of the product's dust and waterproof characteristics standards. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of an inlaid exhaust type transmissive photoelectric sensor proposed by the present utility model;

[0014] Figure 2 is an internal structural diagram of an inlaid exhaust type transmissive photoelectric sensor proposed by the present utility model;

[0015] Figure 3 is an exploded view of an inlaid exhaust type transmissive photoelectric sensor proposed by the present utility model;

[0016] Figure 4 is a schematic structural diagram of the plastic cover of an inlaid exhaust type transmissive photoelectric sensor proposed by the present utility model;

[0017] Figure 5 is a schematic structural diagram of the plastic box of an inlaid exhaust type transmissive photoelectric sensor proposed by the present utility model.

[0018] In the figure: 1, plastic box; 2, plastic cover; 3, wire; 4, epoxy resin; 5, card slot; 6, jack; 7, induction groove; 8, PCB; 9, pin; 10, infrared emission unit; 11, infrared reception unit; 12, shielding cover; 13, infrared passing slit; 14, buckle; 15, cross support; 16, clamping strip; 17, placement groove; 18, flange edge; 19, exhaust hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0020] Referring toFigures 1-5 , an inlaid exhaust type transmissive optical control sensor, comprising a plastic box 1. A placement groove 17 is formed at the top of the plastic box 1, and a PCB 8 is placed in the placement groove 17. A plastic cover 2 is fixedly installed at the top of the plastic box 1. A flange 18 is integrally formed on the outer wall of the lower end of the plastic cover 2, and a plurality of exhaust holes 19 are formed through the top of the flange 18. The exhaust holes 19, the inside, the inside and the bottom of the plastic cover 2 are all filled with epoxy resin 4, and the bottom of the epoxy resin 4 abuts against the PCB 8. An infrared transmitting unit 10 and an infrared receiving unit 11 are installed in two induction grooves 7 of the plastic box 1, and the pins 9 of the infrared transmitting unit 10 and the infrared receiving unit 11 penetrate and are welded to the PCB 8. A wire 3 is welded to the upper end surface of the PCB 8, and the wire 3 penetrates through the epoxy resin 4 and extends above the plastic cover 2.

[0021] Refer to Figure 4 , in order to make the exhaust more uniform, the number of exhaust holes 19 is 8. The 8 exhaust holes 19 are divided into four pairs, and the four pairs of exhaust holes 19 are respectively arranged on the four sides of the flange 18.

[0022] Refer to Figures 1-3 , in order to fixedly install the plastic cover 2 on the plastic box 1, the clamping structure includes a buckle 14 and a clamping groove 5. Buckles 14 are integrally formed on the outer walls of the front and rear end faces of the flange 18, and clamping grooves 5 communicating with the placement groove 17 are formed in the front and rear end faces of the plastic box 1, and the buckles 14 are clamped in the clamping grooves 5.

[0023] Refer to Figures 2-3 , in order to prevent interference caused by other infrared rays through the shielding cover as an optical storage component, shielding covers 12 are sleeved on the outer walls of the infrared transmitting unit 10 and the infrared receiving unit 11, and infrared ray passing slits 13 are formed in the end faces of a pair of shielding covers 12 close to each other.

[0024] Refer to Figure 1 , in order to facilitate the insertion of screws for installing and fixing the sensor, ear plates are integrally formed on both sides of the plastic box 1, and jacks 6 for inserting screws during installation are formed in the ear plates.

[0025] Refer to Figure 5 , in order to clamp the shielding cover 12 to prevent the infrared transmitting unit 10 and the infrared receiving unit 11 from shaking and affecting stability and being bent and damaged to reduce the pins 9, a pair of clamping strips 16 are integrally formed on the front and rear inner walls of a pair of induction grooves 7, and chamfers for facilitating the insertion of the shielding cover 12 are formed on the sides of the upper ends of the pair of clamping strips 16 close to each other. The chamfers facilitate the insertion of the shielding cover 12.

[0026] Refer to Figure 5 , in order to support the shielding cover 12 to prevent the shielding cover 12 from moving, a cross support 15 is integrally formed at the bottom of the induction groove 7, and the top of the cross support 15 abuts against the shielding cover 12.

[0027] Working principle: The sensor adopts a semi-finished PCB8 component with a welded infrared emission unit 10 and an infrared reception unit 11. The infrared emission unit 10 and the infrared reception unit 11 are inserted into the PCB8, and the pin 9 is welded to the PCB8 according to the specified height requirements. Then, the wire 3 is welded to the PCB8 on which the infrared units are welded. Next, the optical receiving component shield 12 is sleeved outside the infrared emission unit 10 and the infrared reception unit 11, and the assembled component including the shield 12, the PCB8, the infrared emission unit 10, the infrared reception unit 11 is assembled with the infrared-transmitting plastic box 1, and then assembled with the plastic cover 2 so that the buckle 14 is inserted into the card slot 5. Finally, epoxy resin 4 is filled; during filling, since 8 exhaust holes 19 are added in the design of the plastic cover 2, the generated bubbles can be discharged through the exhaust holes in time.

[0028] By adding 8 exhaust holes 19 on the flange edge 18 of the plastic cover 2, the sensor ensures that the bubbles can be discharged in time, reduces the generation of air holes on the bonding surface of the epoxy resin and the plastic box cover, effectively improves the fluidity of the epoxy resin in the product structure, reduces the production man-hours and improves the production efficiency, effectively improves the quality of the product, and ensures the consistency and high quality of the product's dust-proof and waterproof characteristic standards.

[0029] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. An inlaid exhaust type transmissive light control sensor, comprising a plastic box (1), characterized in that, A placement groove (17) is formed at the top of the plastic box (1), and a PCB (8) is placed in the placement groove (17). A plastic cover (2) is fixedly installed on the top of the plastic box (1). A flange edge (18) is integrally formed on the outer wall of the lower end of the plastic cover (2), and a plurality of exhaust holes (19) are formed through the top of the flange edge (18). The exhaust holes (19), the inside, the inside and the bottom of the plastic cover (2) are all filled with epoxy resin (4), and the bottom of the epoxy resin (4) abuts against the PCB (8). An infrared transmitting unit (10) and an infrared receiving unit (11) are installed in two induction grooves (7) of the plastic box (1), and the pins (9) of the infrared transmitting unit (10) and the infrared receiving unit (11) penetrate and are welded to the PCB (8). A wire (3) is welded to the upper end surface of the PCB (8), and the wire (3) penetrates through the epoxy resin (4) and extends above the plastic cover (2).

2. The inlaid exhaust type transmissive light control sensor according to claim 1, wherein, The number of the exhaust holes (19) is 8. The 8 exhaust holes (19) are divided into four pairs, and the four pairs of exhaust holes (19) are respectively arranged on four sides of the flange edge (18).

3. The inlaid exhaust type transmissive optical control sensor according to claim 1, characterized in that, It further includes a clamping structure. The clamping structure includes a buckle (14) and a clamping groove (5). The buckle (14) is integrally formed on the outer walls of the front and rear end faces of the flange edge (18). The front and rear end faces of the plastic box (1) are provided with clamping grooves (5) communicating with the placement groove (17), and the buckle (14) is clamped in the clamping groove (5).

4. A mosaic exhaust type transmissive light control sensor according to claim 1, characterized in that, Shielding covers (12) are sleeved on the outer walls of the infrared transmitting unit (10) and the infrared receiving unit (11), and infrared passing slits (13) are formed on the end faces of a pair of shielding covers (12) close to each other.

5. The inlaid exhaust type transmissive optical control sensor according to claim 1, characterized in that, Lug plates are integrally formed on both sides of the plastic box (1), and insertion holes (6) for inserting screws during installation are formed in the lug plates.

6. The inlaid exhaust type transmissive light control sensor according to claim 4, wherein A pair of clamping strips (16) are integrally formed on the front and rear inner walls of a pair of the induction grooves (7), and chamfers for facilitating the insertion of the shielding cover (12) are formed on one side of the upper ends of the pair of clamping strips (16) close to each other.

7. The inlaid exhaust type transmissive light control sensor according to claim 4, characterized in that, A cross support (15) is integrally formed at the bottom of the induction groove (7), and the top of the cross support (15) abuts against the shielding cover (12).

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