Integrated infrared travel switch

Abstract

The utility model relates to an integrated infrared travel switch, which comprises a shell, a mounting cavity is arranged in the shell, a through hole for infrared emission / reception is arranged on the surface of the front end of the shell, and one side of the shell extends outwards to form a supporting table board; the control circuit board is arranged in the mounting cavity and is provided with an infrared transmitting end and a receiving end, and the transmitting end and the receiving end are respectively arranged corresponding to the through holes; and the reflecting plate is fixedly arranged on the supporting table top and is positioned on the same surface with the through hole. The reflector and the infrared transmitting and receiving device are directly designed into a whole, when bidirectional detection control is needed, only one reflector and one infrared transmitting and receiving device need to be installed on each of the two sides, the detection precision of the reflector and the infrared transmitting and receiving device is consistent, and detection errors caused by respective installation are avoided.

Description

Technical Field

[0001] The utility model specifically relates to an integrated infrared travel switch. Background Art

[0002] The infrared travel switch is mainly used for travel detection. It utilizes the infrared rays emitted by the infrared emission end, which are reflected by the surface to be detected, and then uses the time difference between transmission and reception to obtain the travel between the two.

[0003] Generally, for such an infrared travel switch, a transmitting end and a reflecting end need to be configured. The reflecting end can also directly utilize the object to be detected. For some occasions where travel control needs to be performed on both sides, a transmitting end and a reflecting end need to be respectively arranged at both ends, and the installation of multiple parts is too cumbersome. At the same time, the independent installation of multiple parts results in errors in detection accuracy, leading to the phenomenon of asynchronous actions in both directions. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide an integrated infrared travel switch.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] An integrated infrared travel switch, which includes:

[0007] A housing, which has an installation cavity inside, and a through hole for infrared emission / reception is provided on the front surface of its front end. One side of the housing extends outward to form a support table surface;

[0008] A control circuit board is placed in the installation cavity, which has an infrared transmitting end and a receiving end, and the transmitting end and the receiving end are respectively arranged corresponding to the through hole;

[0009] A reflector is fixedly installed on the support table surface and is on the same surface as the through hole.

[0010] The front surface of the reflector is on the same horizontal plane as the front surface of the housing.

[0011] A groove is provided on the front surface of the housing, the through hole is placed in the groove, and a detachable light-transmitting plate is also provided at the groove.

[0012] The light-transmitting plate is provided with a convex lens structure at the position corresponding to the through hole.

[0013] The rear end of the support table surface extends backward to form a fixing bracket.

[0014] An adjustment button for adjusting the infrared emission distance is provided at the upper end of the housing, and the adjustment button is controllably connected to the control circuit board.

[0015] The lower end of the housing is provided with a wire outlet hole.

[0016] The housing includes a front cover and a rear cover, and the front cover and the rear cover cooperate to form an installation cavity.

[0017] The beneficial effects of the present utility model: The reflector and the infrared emission and reception device are directly integrated. When two-way detection and control are required, only one can be installed on each side, and the detection accuracy of the two is the same, and detection errors will not occur due to separate installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the front end of the present utility model.

[0019] Figure 2 It is a schematic structural diagram of the rear end of the present utility model.

[0020] Figure 3 It is a schematic diagram of the bottom of the present utility model.

[0021] Figure 4 It is a schematic structural diagram of the light-transmitting plate of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] 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 the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0024] As shown in the figure, the present utility model discloses an integrated infrared travel switch, which includes a housing and a support table extending along one side of the housing. A control circuit board with infrared reception and emission is provided in the housing, and a reflector is arranged on the support table. Two integrated infrared travel switches are combined to form two groups of two-way action controls.

[0025] A housing 1, with an installation cavity inside it, and through holes for infrared emission / reception on its front end surface. One side of the housing extends outward to form a support table 2. The support table is integrally formed with the housing and is formed by extending outward from the side wall of the housing. There is a certain height difference between it and the front end surface of the housing, and this height difference matches the thickness of the reflector, so that after the reflector 3 is installed on this support table, its front end surface is flush with the front end surface of the housing, ensuring that the emission plane and the reflection plane are in the same plane, and ensuring that the emission distances of the two infrared rays of the two symmetrically placed infrared travel switches are the same.

[0026] A control circuit board, placed inside the installation cavity, having an infrared emission end and a reception end, and the emission end and the reception end are respectively arranged corresponding to the through holes. The control circuit board is a conventional infrared emission and reception board. At the same time, like the conventional infrared emission and reception board, it has the function of adjusting the infrared emission distance and belongs to a conventional product. In this application, it is only assembled in the housing of this application, and the control circuit board is not modified, so its circuit description is not given.

[0027] A reflector 3, fixedly installed on the support table and on the same surface as the through holes. It is made of a material that can reflect the incident infrared light, so that the infrared rays are reflected back to the reception end by this reflector to achieve infrared distance measurement or travel detection.

[0028] The front surface of the reflector is in the same horizontal plane as the front end surface of the housing, so that the emission surfaces and the reflection surfaces on both sides are in the same plane, ensuring that the detection accuracies of the two travel switches are the same.

[0029] There is a groove on the front end surface of the housing. The through holes are placed in the groove, and a detachable light-transmitting plate 4 is also provided at the groove. The light-transmitting plate is provided with a convex lens structure 41 at the position corresponding to the through holes, and the convex lens structure is used to achieve the effect of focusing and collimation.

[0030] The rear end of the support table extends backward to form a fixing bracket 6. The fixing bracket is designed perpendicular to the support table, thus playing a role in supporting and fixing the infrared travel switch. At the same time, in order to improve the connection strength between the two, a reinforcing rib is provided between the fixing bracket and the support table. There are several screw holes 61 on the fixing bracket for fixed connection.

[0031] There is an adjustment button 5 for adjusting the infrared emission distance on the upper end of the housing. The adjustment button is controllably connected to the control circuit board. This adjustment button is set on the upper end for easy operation, and it is mainly used to adjust the infrared distance adjustment of the control circuit board itself.

[0032] There is a wire outlet hole 13 at the lower end of the housing, which is convenient for the internal control circuit board to be electrically connected to the outside.

[0033] The housing includes a front cover 11 and a rear cover 12. The front cover and the rear cover cooperate to form an installation cavity. The front cover and the rear cover are fixedly connected by screws. The control circuit board is placed in the installation cavity formed by the two and is fixed by the front cover and the rear cover to ensure that the control circuit board will not shift in position inside.

[0034] The embodiments should not be regarded as limitations to the present utility model, but any improvements made based on the spirit of the present utility model should be within the protection scope of the present utility model.

Claims

1. Integrated infrared travel switch, characterized by: It includes: A housing, wherein a mounting cavity is provided inside the housing, and a through hole for infrared emission / reception is provided on the front surface of the housing, and one side of the housing extends outward to form a supporting table; A control circuit board is placed in the installation cavity, and has an infrared transmitting end and a receiving end, and the transmitting end and the receiving end are respectively arranged corresponding to the through holes; The reflector is fixedly mounted on the support table and is on the same surface as the through hole.

2. The integrated infrared travel switch according to claim 1, characterized in that: The front surface of the reflector is in the same horizontal plane as the front end surface of the housing.

3. The integrated infrared travel switch according to claim 1 is characterized in that: A groove is arranged on the front end surface of the shell, the through hole is arranged in the groove, and a detachable light-transmitting plate is also arranged at the groove.

4. The integrated infrared travel switch according to claim 3 is characterized in that: The light-transmitting plate is provided with a convex lens structure at a position corresponding to the through hole.

5. The integrated infrared travel switch according to claim 1 is characterized in that: The rear end of the supporting table extends backward to form a fixed bracket.

6. The integrated infrared travel switch according to claim 1, characterized in that: An adjustment button for adjusting the infrared emission distance is provided at the upper end of the shell, and the adjustment button is controllably connected to the control circuit board.

7. The integrated infrared travel switch according to claim 1, characterized in that: A wire outlet hole is provided at the lower end of the shell.

8. The integrated infrared travel switch according to claim 1, characterized in that: The shell comprises a front cover and a rear cover, and the front cover and the rear cover cooperate to form a mounting cavity.

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