CN221961816U - Photoelectric switch - Google Patents

Abstract

The utility model discloses a photoelectric switch, including a shell, a substrate, and a light emitting device and a photosensitive receiving device arranged on the substrate; the shell is provided with a light-transmitting hole, and a limiting structure is provided in the shell; the substrate is assembled in the shell and abuts against the limiting structure, so that the light emitting device and the photosensitive receiving device are arranged relative to the light-transmitting hole. The photoelectric switch can ensure that the substrate can be arranged in a specific posture in the shell by arranging a limiting structure in the shell, the light emitting device and the photosensitive receiving device on the substrate can be arranged relative to the light-transmitting hole, the light emitted by the light emitting device can be smoothly transmitted to the outside through the light-transmitting hole, and the photosensitive receiving device can receive external light through the light-transmitting hole, so as to prevent the substrate from tilting in the shell, facilitate the rapid determination of the setting posture of the substrate in the shell during the automated assembly process, and facilitate the realization of automated production.

Description

Photoelectric switch

Technical Field

The utility model relates to the technical field of photoelectric switches, in particular to a photoelectric switch.

Background Art

Photoelectric switch is a commonly used sensing device, which is widely used in various fields in daily life. There is a light-emitting device and a photosensitive receiving device inside the photoelectric switch. The light emitted by the light-emitting device will produce diffuse reflection when encountering an object. The photosensitive receiving device receives the diffuse reflection light and generates a corresponding electrical signal to complete the perception of the object.

In the prior art, light-emitting devices and photosensitive receiving devices are usually arranged on a substrate with corresponding photoelectric sensing circuits, and the substrate is assembled in a shell with a light-transmitting hole. However, due to the small size of the substrate, it is not easy to control the setting posture of the substrate inside the shell when the substrate is assembled inside the shell. Once the substrate is tilted inside the shell, it is easy to cause the light path of the light-emitting device and the photosensitive receiving device to be blocked by the shell, and light cannot be normally emitted and received through the light-transmitting hole, affecting the detection effect of the photoelectric switch. Therefore, in order to adjust the relative position of the light-emitting device and the receiving device in the shell, manual assembly is usually adopted to press the light-emitting device and the receiving device into the shell. The operation speed is slow and the cost is high, which is not conducive to the realization of fully automated production.

Utility Model Content

The embodiment of the utility model provides a photoelectric switch to solve the problem that the arrangement posture of a substrate of the photoelectric switch inside a housing is not easy to control, which is not conducive to realizing automated production.

The embodiment of the utility model provides a photoelectric switch, comprising a housing, a substrate, and a light emitting device and a photosensitive receiving device arranged on the substrate;

The shell is provided with a light-transmitting hole, and the shell is provided with a limiting structure;

The substrate is assembled in the housing and abuts against the limiting structure, so that the light emitting device and the photosensitive receiving device are arranged opposite to the light transmission hole.

Preferably, the light-transmitting hole comprises a first light-transmitting hole and a second light-transmitting hole;

The first light-transmitting hole is arranged opposite to the light-emitting device, and the second light-transmitting hole is arranged opposite to the photosensitive receiving device.

Preferably, the housing comprises a top plate and a side plate extending from the edge of the top plate in a vertical direction, the top plate is provided with the light-transmitting hole, and the axial direction of the light-transmitting hole is perpendicular to the top plate;

The limiting structure includes a first limiting protrusion extending from the inner wall of the side plate in a vertical direction and a partition plate extending from the inner wall of the top plate in a vertical direction;

The partition plate is arranged between the first light-transmitting hole and the second light-transmitting hole, and two side edges of the partition plate are connected to the inner wall of the side plate;

The base plate is assembled in the housing and abuts against the first limiting protrusion and the partition plate.

Preferably, the housing comprises a top plate and a side plate extending from the edge of the top plate in a vertical direction, the top plate is provided with the light-transmitting hole, and the axial direction of the light-transmitting hole is perpendicular to the top plate;

The limiting structure includes a second limiting protrusion extending from the inner wall of the top plate in a vertical direction, and the second limiting protrusion is arranged around the light-transmitting hole;

The substrate is assembled in the housing and abuts against the second limiting protrusion.

Preferably, the light emitting device is any one of a light emitting chip and a light emitting package device formed by packaging the light emitting chip;

The photosensitive receiving device is any one of a photosensitive chip, a photosensitive IC chip with a logic circuit, and a photosensitive packaged device formed by packaging a photosensitive chip.

Preferably, the photoelectric switch further comprises a PIN needle;

The PIN needle is mounted on a side of the substrate away from the photosensitive receiving device and the light emitting device.

Preferably, the photoelectric switch comprises a bottom plate;

A first clamping member is provided on the end of the housing away from the light-transmitting hole, and a second clamping member is provided on the bottom plate opposite to the first clamping member;

The first clamping member is clamped with the second clamping member so that the first side surface of the bottom plate is connected to an end of the housing away from the light-transmitting hole.

Preferably, the first clamping member includes a clamping protrusion, and the second clamping member includes a through hole;

The clamping protrusion is clamped with the through hole, so that the first side surface of the bottom plate is connected to an end of the housing away from the light-transmitting hole.

Preferably, at least one mounting hole is provided on the bottom plate, and the mounting hole is used to fix the photoelectric switch to an external device via a fastener.

Preferably, the photoelectric switch further comprises a filling layer, wherein the filling layer is arranged in the housing and wrapped around the photosensitive receiving device and the light emitting device.

The photoelectric switch provided by the embodiment of the utility model can ensure that the substrate can be set in a specific posture in the shell by setting a limiting structure in the shell, the light-emitting device and the photosensitive receiving device on the substrate can be set relative to the light-transmitting hole, the light emitted by the light-emitting device can be smoothly transmitted to the outside through the light-transmitting hole, and the photosensitive receiving device can receive external light through the light-transmitting hole, thereby preventing the substrate from tilting in the shell, facilitating the rapid determination of the setting posture of the substrate in the shell during the automated assembly process, and facilitating the realization of automated production.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

FIG1 is a schematic diagram of the structure of a photoelectric switch in one embodiment of the utility model;

FIG2 is a schematic cross-sectional view of a photoelectric switch in one embodiment of the present invention;

3 is a cross-sectional structural diagram of a photoelectric switch in another embodiment of the present invention;

FIG. 4 is a cross-sectional structural diagram of a photoelectric switch in another embodiment of the present invention.

In the figure: 1. housing; 11. first clamping part; 2. substrate; 3. light emitting device; 4. photosensitivity receiving device; 5. light transmission hole; 51. first light transmission hole; 52. second light transmission hole; 6. limiting structure; 61. first limiting protrusion; 62. partition plate; 63. second limiting protrusion; 7. PIN needle; 8. bottom plate; 81. second clamping part; 9. mounting hole.

DETAILED DESCRIPTION

In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

In the description of the present invention, it should be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the 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 cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

An embodiment of the utility model provides a photoelectric switch, as shown in Figures 1 to 4, the photoelectric switch includes a shell 1, a substrate 2, and a light-emitting device 3 and a photosensitive receiving device 4 arranged on the substrate 2; a light-transmitting hole 5 is provided on the shell 1, and a limiting structure 6 is provided in the shell 1; the substrate 2 is assembled in the shell 1 and abuts against the limiting structure 6, so that the light-emitting device 3 and the photosensitive receiving device 4 are arranged opposite to the light-transmitting hole 5.

As an example, the photoelectric switch includes a housing 1, a substrate 2, a light emitting device 3 and a photosensitive receiving device 4, wherein the light emitting device 3 and the photosensitive receiving device 4 are arranged on the substrate 2 and connected to the circuit on the substrate 2. The housing 1 can be a box structure with an opening at one end, a light-transmitting hole 5 is arranged on a side opposite to the opening of the housing 1, and a limiting structure 6 is arranged on the inner side wall of the housing 1. When the substrate 2 is assembled, it enters from the opening of the housing 1 and abuts against the limiting structure 6 in the housing 1, so that the substrate 2 is arranged in a specific posture in the housing 1, such as parallel to the side with the light-transmitting hole 5, and the light emitting device 3 and the photosensitive receiving device 4 on the substrate 2 can be arranged opposite to the light-transmitting hole 5.

In this example, by setting a limiting structure 6 in the outer shell 1, it can be ensured that the substrate 2 can be set in a specific posture in the outer shell 1, the light-emitting device 3 and the photosensitive receiving device 4 on the substrate 2 can be set relative to the light-transmitting hole 5, the light emitted by the light-emitting device 3 can be smoothly transmitted to the outside through the light-transmitting hole 5, and the photosensitive receiving device 4 can receive external light through the light-transmitting hole 5, thereby preventing the substrate 2 from tilting in the outer shell 1, facilitating the rapid determination of the setting posture of the substrate 2 in the outer shell 1 during the automated assembly process, and facilitating the realization of automated production.

In one embodiment, as shown in FIG. 1 , the light-transmitting hole 5 includes a first light-transmitting hole 51 and a second light-transmitting hole 52 ; the first light-transmitting hole 51 is arranged opposite to the light-emitting device 3 , and the second light-transmitting hole 52 is arranged opposite to the photosensitive receiving device 4 .

As an example, the light-transmitting hole 5 includes a first light-transmitting hole 51 and a second light-transmitting hole 52 arranged side by side on the same side. The first light-transmitting hole 51 is arranged opposite to the light-emitting device 3, and the light emitted by the light-emitting device 3 is transmitted to the outside through the first light-transmitting hole 51. The second light-transmitting hole 52 is arranged opposite to the photosensitive receiving device 4, and the photosensitive receiving device 4 receives the external diffusely reflected light through the second light-transmitting hole 52. Separating the first light-transmitting hole 51 and the second light-transmitting hole 52 is conducive to separating the light-emitting device 3 from the photosensitive receiving device 4, so as to prevent the light emitted by the light-emitting device 3 from directly irradiating the photosensitive receiving device 4, so as to avoid misjudgment.

In one embodiment, the housing 1 includes a top plate and a side plate extending from the edge of the top plate in a vertical direction, and a light-transmitting hole 5 is provided on the top plate, and the axial direction of the light-transmitting hole 5 is perpendicular to the top plate; the limiting structure 6 includes a first limiting protrusion 61 extending from the inner wall of the side plate in a vertical direction and a partition plate 62 extending from the inner wall of the top plate in a vertical direction, and the partition plate 62 is arranged between the first light-transmitting hole 51 and the second light-transmitting hole 52; the two side edges of the partition plate 62 are connected to the inner wall of the side plate; the substrate 2 is assembled in the housing 1 and abuts against the first limiting protrusion 61 and the partition plate 62.

As an example, as shown in FIG2 , the housing 1 includes a top plate and four side plates extending from the edge of the top plate in a vertical direction, and an opening is formed at the bottom of the housing 1. A light-transmitting hole 5 is provided on the top plate, and the axial direction of the light-transmitting hole 5 is perpendicular to the top plate. The limiting structure 6 includes two first limiting protrusions 61 extending from the inner walls of any two oppositely arranged side plates in a vertical direction. When the substrate 2 is assembled, it enters from the opening at the bottom of the housing 1, and the four side edges of the substrate 2 contact the inner walls of the four side plates, forming a first accommodating space with the inner wall of the housing 1, and one side of the substrate 2 abuts against one side of the two first limiting protrusions 61, so that the substrate 2 is arranged in a specific posture in the housing 1, and the light-emitting device 3 and the photosensitive receiving device 4 on the substrate 2 can be arranged opposite to the first light-transmitting hole 51 and the second light-transmitting hole 52. The limiting structure 6 also includes a partition plate 62 extending from the inner wall of the top plate in a vertical direction, and the left and right sides of the partition plate 62 are connected to the inner walls of the two oppositely arranged side plates. When the substrate 2 abuts against the two first limiting protrusions 61, one side of the partition plate 62 also abuts against the substrate 2, and the first accommodating space formed by the substrate 2 and the inner wall of the shell 1 is divided into two independent spaces that are not connected to each other according to the positions of the first light-transmitting hole 51 and the second light-transmitting hole 52, so that the light-emitting device 3 and the photosensitive receiving device 4 are arranged in two independent spaces, so that the photosensitive receiving device 4 can only receive the light emitted by the light-emitting device 3 through the second light-transmitting hole 52.

As another example, in order to reduce the difficulty of molding the shell 1 in actual production, as shown in Figure 3, the setting position of the first limiting protrusion 61 on the inner wall of the side panel can be at the upper edge of the side panel, so that the upper side surface of the first limiting protrusion 61 contacts the inner wall of the top plate, and when the substrate 2 is assembled into the interior of the shell 1, it abuts against the lower side surface of the first limiting protrusion 61. The distance between the upper side surface and the lower side surface of the first limiting protrusion 61 can be appropriately increased so that there is enough space between the substrate 2 and the top plate of the shell 1 to accommodate the light-emitting device 3 and the photosensitive receiving device 4.

In one embodiment, as shown in Figure 4, the shell 1 includes a top plate and a side plate extending from the edge of the top plate in a vertical direction, and a light-transmitting hole 5 is provided on the top plate, and the axial direction of the light-transmitting hole 5 is perpendicular to the top plate; the limiting structure 6 includes a second limiting protrusion 63 extending from the inner wall of the top plate in a vertical direction, and the second limiting protrusion 63 is arranged around the light-transmitting hole 5; the substrate 2 is assembled in the shell 1 and abuts against the second limiting protrusion 63.

As an example, the housing 1 includes a top plate and a side plate extending from the edge of the top plate in a vertical direction, a light-transmitting hole 5 is provided on the top plate, and an opening is formed at the bottom of the housing 1. The axial direction of the light-transmitting hole 5 is perpendicular to the top plate. The limiting structure 6 includes two second limiting protrusions 63 extending from the inner wall of the top plate in a vertical direction, and the two second limiting protrusions 63 are respectively arranged around the first light-transmitting hole 51 and the second light-transmitting hole 52. When the substrate 2 is assembled, it enters from the opening of the housing 1, and one side of the substrate 2 abuts against the ends of the two second limiting protrusions 63, and one side of the substrate 2 and the inner side wall of one second limiting protrusion 63 and the first light-transmitting hole 51 form a semi-enclosed second accommodating space, and one side of the substrate 2 and the inner side wall of another second limiting protrusion 63 and the second light-transmitting hole 52 form a semi-enclosed third accommodating space, and the light-emitting device 3 is arranged in the second accommodating space, and the photosensitive receiving device 4 is arranged in the third accommodating space. The two second limiting protrusions 63 abut against the substrate 2, so that the substrate 2 can be set in a specific posture in the shell 1 to prevent the substrate 2 from tilting in the shell 1 and affecting the light emitting and receiving of the light emitting device 3 and the photosensitive receiving device 4. The light emitting device 3 and the photosensitive receiving device 4 can also be arranged in two independent accommodating spaces, so that the photosensitive receiving device 4 can only receive the light emitted by the light emitting device 3 through the second light-transmitting hole 52.

In one embodiment, the light emitting device 3 is any one of a light emitting chip and a light emitting package device formed by packaging the light emitting chip. The photosensitive receiving device 4 is any one of a photosensitive chip, a photosensitive IC chip with logic circuits, and a photosensitive package device formed by packaging a photosensitive chip.

As an example, the light emitting device 3 may be a light emitting chip or a light emitting packaged device made by packaging a light emitting chip. The photosensitive receiving device 4 may be a photosensitive chip, a photosensitive IC chip with a logic circuit, a photosensitive packaged device formed by packaging a photosensitive chip, etc. When the light emitting device 3 is a light emitting chip and the photosensitive receiving device 4 is a phototransistor and a photosensitive IC with a logic circuit, the light emitting device 3 and the photosensitive receiving device 4 may be connected to the substrate 2 through conductive silver paste, solder paste, epoxy glue or bonding gold wire; when the light emitting device 3 is a light emitting packaged device and the photosensitive receiving device 4 is a photosensitive packaged device, the light emitting device 3 and the photosensitive receiving device 4 may be connected to the substrate 2 through solder paste.

In one embodiment, the photoelectric switch further includes a PIN pin 7 ; the PIN pin 7 is mounted on a side of the substrate 2 away from the photosensitive receiving device 4 and the light emitting device 3 .

As an example, the photoelectric switch further includes a PIN pin 7, which is mounted on a side of the substrate 2 away from the photosensitive receiving device 4 and the light emitting device 3 and is arranged perpendicular to the substrate 2. The first end of the PIN pin 7 is electrically connected to the circuit on the substrate 2, and the other end of the PIN pin 7 is used to connect to an external circuit. When producing a substrate 2 with a PIN pin 7, several substrates 2 with light emitting devices 3 and photosensitive receiving devices 4 can be combined into a whole substrate 2, and the PIN pin 7 can be assembled on each substrate 2 in sequence using a PIN jumper.

In one embodiment, as shown in Figure 1, the photoelectric switch also includes a base plate 8; a first clamping member 11 is provided on the end of the housing 1 away from the light-transmitting hole 5, and a second clamping member 81 is provided on the base plate 8 and is arranged opposite to the first clamping member 11; the first clamping member 11 is clamped with the second clamping member 81 to connect the base plate 8 to the end of the housing 1 away from the light-transmitting hole 5.

As an example, the photoelectric switch may further include a bottom plate 8, which is disposed at the opening of the housing 1, and is used to seal the opening of the housing 1 after the substrate 2 is assembled into the housing 1, so as to prevent dust and debris from entering the housing 1. A first clamping member 11 is disposed at the edge of the opening of the housing 1, and a second clamping member 81 is disposed on the bottom plate 8 and is arranged opposite to the first clamping member 11. When the bottom plate 8 is assembled to the opening of the housing 1, the first clamping member 11 is engaged with the second clamping member 81, so that the bottom plate 8 is fixed at the opening of the housing 1.

In one embodiment, the first clamping member 11 includes a clamping protrusion, and the second clamping member 81 includes a through hole; the clamping protrusion is clamped with the through hole to connect the first side surface of the bottom plate 8 to an end of the housing 1 away from the light-transmitting hole 5 .

As an example, the first clamping member 11 can be a clamping protrusion, and the second clamping member 81 can be a through hole, and the clamping protrusion can be interference fit with the through hole to form a clamping fixed structure. Alternatively, the second clamping member 81 can be a through hole that can accommodate the clamping protrusion to pass through, and when the clamping protrusion is inserted into the through hole, the first side of the bottom plate 8 fits with the opening of the shell 1, and one end of the clamping protrusion can protrude from the second side of the bottom plate 8, wherein the first side and the second side of the bottom plate 8 are two oppositely arranged sides. In the process of assembling the bottom plate 8 to the opening of the shell 1, the clamping protrusion is first inserted into the through hole, and then the part of the clamping protrusion protruding from the second side of the bottom plate 8 is hot-melted and reshaped to form a clamping block at the second side of the bottom plate 8, and the diameter of the clamping block is greater than the diameter of the through hole, which can form a barrier at the second side of the bottom plate 8, so that the bottom plate 8 and the shell 1 are closely fitted to form a clamping fixed structure.

In one embodiment, at least one mounting hole 9 is provided on the bottom plate 8, and the mounting hole 9 is used to fix the photoelectric switch to an external device by a fastener.

As an example, at least one mounting hole 9 may be provided on the base plate 8, and the mounting hole 9 is used to accommodate a fastening structure such as a bolt to pass through, so as to facilitate the photoelectric switch to be assembled on an external device using the photoelectric switch through the fastening structure such as a bolt.

As another example, the base plate 8 is also provided with an opening for accommodating the PIN needle 7 to pass through. The PIN needle 7 is inserted into the opening, and one end of the PIN needle 7 protrudes from the second side surface of the base plate 8 to facilitate connection with external circuits and structures.

In one embodiment, the photoelectric switch further includes a filling layer, which is disposed in the housing 1 and wraps around the photosensitive receiving device 4 and the light emitting device 3 .

As an example, when the photosensitive receiving device 4 is a photosensitive chip and the light emitting device 3 is a light emitting chip or a photosensitive IC chip, the photoelectric switch may further include a filling layer formed by injection molding from the opening end of the housing 1 into the housing 1, and the filling layer may be made of materials such as epoxy resin or silicone. The filling layer can wrap the photosensitive receiving device 4 and the light emitting device 3 in chip form to form waterproof and dustproof protection for the photosensitive receiving device 4 and the light emitting device 3, and fix the photosensitive receiving device 4 and the light emitting device 3 to prevent them from falling off.

As another example, in the process of forming the filling layer, a colorant can be added to the filling material such as epoxy resin or silicone, so that the filling layer formed by injection molding is a colored filling layer, so as to form a gating effect on the light passing through the filling layer, so that light of a specific wavelength passes through the filling layer to the outside, or light of a specific wavelength passes through the filling layer to the internal photosensitive receiving device 4, thereby improving the detection accuracy of the photoelectric switch.

The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention.

Claims (10)

1. The photoelectric switch is characterized by comprising a shell, a substrate, a light emitting device and a photosensitive receiving device, wherein the light emitting device and the photosensitive receiving device are arranged on the substrate;

A light hole is formed in the shell, and a limiting structure is arranged in the shell;

The substrate is assembled in the shell and is abutted with the limiting structure, so that the light emitting device and the photosensitive receiving device are arranged opposite to the light transmitting hole.

2. The optoelectronic switch of claim 1, wherein the light-transmitting apertures comprise a first light-transmitting aperture and a second light-transmitting aperture;

The first light holes are arranged opposite to the light emitting device, and the second light holes are arranged opposite to the photosensitive receiving device.

3. The photoelectric switch according to claim 2, wherein the housing includes a top plate and a side plate extending in a vertical direction from an edge of the top plate, the top plate is provided with the light-transmitting hole,

The axial direction of the light hole is perpendicular to the top plate;

The limiting structure comprises a first limiting protrusion extending from the inner wall of the side plate along the vertical direction and a separation plate extending from the inner wall of the top plate along the vertical direction;

The partition plate is arranged between the first light holes and the second light holes, and two side edges of the partition plate are connected with the inner walls of the side plates;

The base plate is assembled in the shell and is abutted with the first limiting protrusion and the partition plate.

4. The photoelectric switch according to claim 2, wherein the housing includes a top plate and a side plate extending in a vertical direction from an edge of the top plate, the top plate is provided with the light-transmitting hole,

The axial direction of the light hole is perpendicular to the top plate;

The limiting structure comprises a second limiting protrusion extending from the inner wall of the top plate along the vertical direction, and the second limiting protrusion is arranged around the light hole;

the base plate is assembled in the shell and is abutted with the second limiting protrusion.

5. The optoelectronic switch of claim 1, wherein the light emitting device is any one of a light emitting chip and a light emitting package device formed from a light emitting chip package;

The photosensitive receiving device is any one of a photosensitive chip, a photosensitive IC chip with a logic circuit and a photosensitive packaging device formed by packaging the photosensitive chip.

6. The optoelectronic switch of claim 1, wherein the optoelectronic switch further comprises a PIN;

the PIN needle is mounted on the substrate at a side surface remote from the photosensitive receiving device and the light emitting device.

7. The optoelectronic switch of claim 1, further comprising a backplane;

a first clamping piece is arranged at one end, far away from the light hole, of the shell, and a second clamping piece which is arranged opposite to the first clamping piece is arranged on the bottom plate;

the first clamping piece is clamped with the second clamping piece, so that the first side face of the bottom plate is connected with one end, far away from the light hole, of the shell.

8. The optoelectronic switch of claim 7, wherein the first snap-in member comprises a snap-in protrusion and the second snap-in member comprises a through-hole;

The clamping protrusion is clamped with the through hole, so that the first side surface of the bottom plate is connected with one end, far away from the light transmission hole, of the shell.

9. The optoelectronic switch of claim 7, wherein the base plate has at least one mounting hole therein for securing the optoelectronic switch to an external device with a fastener.

10. The optoelectronic switch of claim 1, further comprising a filler layer disposed within the housing and encased outside the photosensitive receiving device and the light emitting device.