Photoelectric switch

Abstract

The utility model discloses a photoelectric switch, which comprises a first shell and a second shell, the top of the first shell is fixedly provided with the second shell, the first shell is internally provided with a first installation cavity, the second shell is internally provided with a second installation cavity, and the first installation cavity is communicated with the second installation cavity. A circuit board is assembled in the first installation cavity, a fixing frame is fixedly installed in the second installation cavity, a cover body is fixedly installed at the end, away from the second shell, of the first shell, and protective glasses are fixedly installed at the end, away from the first shell, of the second shell. In combination with the structural design of the utility model, the photoelectric switch is reasonable in design, so that the photoelectric switch is better in sealing performance when encountering water or being used in water, thereby effectively prolonging the service life of the photoelectric switch.

Description

Technical Field

[0001] The utility model relates to the technical field of photoelectric switches, in particular to a photoelectric switch. Background Art

[0002] Photoelectric switch is the abbreviation of photoelectric proximity switch. It uses the blocking or reflection of the light beam by the detected object, and the circuit is connected by the synchronous circuit to detect the presence or absence of the object. Its working principle is to convert the input current into a light signal on the transmitter, and the receiver detects the target object according to the strength or presence of the received light. Photoelectric switches have the advantages of small size, multiple functions, long life, high precision, fast response speed, long detection distance, and strong resistance to light, electricity, and magnetic interference, and are widely used.

[0003] There are many interference factors in the working area of ​​traditional photoelectric switches, such as water, dust and other factors that affect its signal transmission. In order to facilitate maintenance, the photoelectric switches on the market adopt a split structure design. As a result, when the photoelectric switches are in contact with water or used in water, water will enter the photoelectric switches, thus affecting the service life of the photoelectric switches. Summary of the invention

[0004] The purpose of the utility model is to provide a photoelectric switch to solve the problem that the traditional photoelectric switch mentioned in the background technology has many interference factors in the working area, such as water, dust and other factors that affect its signal transmission, and the photoelectric switch on the market adopts a split structure design for easy maintenance. As a result, when the photoelectric switch is in contact with water or used in water, water will enter the photoelectric switch, thereby affecting the service life of the photoelectric switch.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a photoelectric switch, comprising a first shell and a second shell, the second shell is fixedly installed on the top of the first shell, a first installation cavity is opened in the first shell, a second installation cavity is opened in the second shell, and the first installation cavity is communicated with the second installation cavity, a circuit board is installed in the first installation cavity, a fixing frame is fixedly installed in the second installation cavity, a cover body is fixedly installed on one end of the first shell away from the second shell, and a protective mirror is fixedly installed on one end of the second shell away from the first shell.

[0006] Preferably, the first detector and the second detector are respectively welded on the front end surface of the circuit board, the information processing component is welded on the rear end surface of the circuit board, and a connecting wire is welded on the rear end surface of the circuit board below the information processing component.

[0007] Preferably, a through hole for fixing the positions of the first detector and the second detector is provided on the surface of the fixing frame at a position relative to the first detector and the second detector.

[0008] Preferably, a connection position is provided on the surface of the first shell at the opening of the first installation cavity, a connection block is fixedly connected to the surface of the cover body at a relative position to the connection position, and a connection block is movably connected to the surface of the connection position, and glue for sealing is poured between the connection block and the connection position.

[0009] Preferably, a line inlet for connecting a connecting line is provided on the surface of the cover body.

[0010] Preferably, lenses are mounted on the top surfaces of the first detector and the second detector.

[0011] Preferably, the first shell and the second shell are designed as an integrally formed structure.

[0012] Preferably, glue for sealing is poured between the wire inlet and the connecting wire.

[0013] Beneficial Effects

[0014] Compared with the existing technology, the beneficial effects of the utility model are:

[0015] Combined with the structural design of the utility model, the design structure is simple and the design is reasonable, so that the photoelectric switch has better sealing performance when it encounters water or is used in water, thereby effectively increasing the service life of the photoelectric switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the exploded structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the front end structure of the circuit board of the present utility model.

[0019] 1. First shell; 2. Second shell; 3. Protective glasses; 4. Connecting wires; 5. Fixing frame; 6. Circuit board;

[0020] 7. Cover body; 11. First installation cavity; 12. Connection position; 21. Second installation cavity; 51. Through hole;

[0021] 61. Information processing component; 62. First detector; 63. Second detector; 64. Lens; 71. Cable inlet;

[0022] 72. Connect the blocks. DETAILED DESCRIPTION

[0023] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "front", "back", "inside", "outside", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore are not to be construed as limiting the present invention. In addition, the terms "first", "second" and "third" are only used for descriptive purposes and are not to be construed as indicating or implying relative importance.

[0025] like Figure 1-3 It is a structural schematic diagram of a photoelectric switch of a preferred embodiment of the utility model. In this embodiment, a photoelectric switch includes a first shell 1 and a second shell 2. The second shell 2 is fixedly installed on the top of the first shell 1, a first installation cavity 11 is opened in the first shell 1, and a second installation cavity 21 is opened in the second shell 2, and the first installation cavity 11 is communicated with the second installation cavity 21. A circuit board 6 is installed in the first installation cavity 11, and a fixing frame 5 is fixedly installed in the second installation cavity 21. A cover body 7 is fixedly installed at one end of the first shell 1 away from the second shell 2, and the cover body 7 plays a role in protecting the first installation cavity 11 and the second installation cavity 21. At the same time, a protective mirror 3 is fixedly installed at one end of the second shell 2 away from the first shell 1, and the protective mirror 3 is provided to protect the first detector 62 and the second detector 63, and cooperates with the first detector 62 and the second detector 63 to perform monitoring work.

[0026] In this embodiment, the first detector 62 and the second detector 63 are respectively welded on the front end surface of the circuit board 6, and the information processing component 61 is welded on the rear end surface of the circuit board 6. A connecting wire 4 is welded on the rear end surface of the circuit board 6 below the information processing component 61. The above-mentioned structural arrangement and the coordination therebetween realize the operation of the photoelectric switch.

[0027] In this example, a through hole 51 for fixing the positions of the first detector 62 and the second detector 63 is provided on the surface of the fixing frame 5 at the relative position of the first detector 62 and the second detector 63. This structural setting serves to fix the installation positions of the first detector 62 and the second detector 63 to prevent shaking and changes in the working angle.

[0028] In this embodiment, a connection position 12 is provided on the surface of the first shell 1 at the opening of the first installation cavity 11, a connection block 72 is fixedly connected to the surface of the cover body 7 at a position relative to the connection position 12, and a connection block 72 is movably connected to the surface of the connection position 12, and glue for sealing is poured between the connection block 72 and the connection position 12. The above structural design increases the sealing performance of the connection between the cover body 7 and the first shell 1, and effectively prevents liquids such as water from entering and affecting the normal use of the photoelectric switch.

[0029] In this embodiment, a line inlet 7 for connecting the connecting line 4 is provided on the surface of the cover body 7 .

[0030] In this embodiment, lenses 64 are mounted on the top surfaces of the first detector 62 and the second detector 63, and the lenses 64 assist the first detector 62 and the second detector 63 in monitoring, so as to better work in underwater environments.

[0031] In this embodiment, the first shell 1 and the second shell 2 are designed as an integrally formed structure, and the structural design increases the connection strength between them while reducing the production cost.

[0032] In this embodiment, glue for sealing is poured between the wire inlet 71 and the connecting wire 4. Its structural design increases the sealing performance and effectively prevents liquids such as water from entering through the gap between the wire inlet 71 and the connecting wire 4 to affect the normal use of the photoelectric switch.

[0033] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A photoelectric switch, comprising a first housing (1) and a second housing (2), characterized in that: A second shell (2) is fixedly mounted on the top of the first shell (1); a first mounting cavity (11) is provided in the first shell (1); a second mounting cavity (21) is provided in the second shell (2); the first mounting cavity (11) is communicated with the second mounting cavity (21); a circuit board (6) is installed in the first mounting cavity (11); a fixing frame (5) is fixedly mounted in the second mounting cavity (21); a cover body (7) is fixedly mounted on one end of the first shell (1) away from the second shell (2); and a protective mirror (3) is fixedly mounted on one end of the second shell (2) away from the first shell (1).

2. A photoelectric switch according to claim 1, characterized in that: The front end surface of the circuit board (6) is respectively welded with a first detector (62) and a second detector (63), the rear end surface of the circuit board (6) is welded with an information processing component (61), and the rear end surface of the circuit board (6) is welded with a connecting wire (4) below the information processing component (61).

3. A photoelectric switch according to claim 1, characterized in that: A through hole (51) for fixing the positions of the first detector (62) and the second detector (63) is provided on the surface of the fixing frame (5) at a position relative to the first detector (62) and the second detector (63).

4. A photoelectric switch according to claim 1, characterized in that: A connection position (12) is provided on the surface of the first shell (1) at the opening of the first installation cavity (11); a connection block (72) is fixedly connected to the surface of the cover body (7) at a relative position to the connection position (12); and a connection block (72) is movably connected to the surface of the connection position (12); glue for sealing is poured between the connection block (72) and the connection position (12).

5. A photoelectric switch according to claim 4, characterized in that: The surface of the cover body (7) is provided with a wire inlet (71) for connecting the connecting wire (4).

6. A photoelectric switch according to claim 3, characterized in that: The top surfaces of the first detector (62) and the second detector (63) are equipped with lenses (64).

7. A photoelectric switch according to claim 1, characterized in that: The first shell (1) and the second shell (2) are designed as an integrally formed structure.

8. A photoelectric switch according to claim 5, characterized in that: Glue for sealing is poured between the wire inlet (71) and the connecting wire (4).

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