Multi-channel integrated photoelectric switch device and photoelectric switch group

Abstract

The embodiment of the utility model discloses a multi-channel integrated photoelectric switch device and a photoelectric switch group, and the multi-channel integrated photoelectric switch device provided by the embodiment of the utility model comprises a pin bonding pad, a printed circuit board, a light-emitting assembly, a light-receiving chip and a light guide mirror. An external electric signal is introduced to the printed circuit board through the pin bonding pad, the printed circuit board starts the light-emitting assembly, the light-emitting assembly emits parallel light rays, the light rays are guided to the light receiving chip through the light guide mirror, the light receiving chip generates a photoelectric signal, and the photoelectric signal is transmitted to an external assembly from the pin bonding pad. By adopting the technical scheme, the integration of all-in-one of the photoelectric switch is realized, a multi-position and multi-channel detection function can be realized without arranging a plurality of single photoelectric switch products, the occupied space is smaller, more space is saved in practical application, the structural design of a product applying the photoelectric switch can be more reasonable, and the production cost is reduced. Product upgrading is facilitated, and functions are diversified.

Description

Technical Field

[0001] This application relates to the field of optoelectronic product technology, and in particular to a multi-channel integrated optoelectronic switch device and optoelectronic switch group. Background Technology

[0002] A photoelectric switch, short for photoelectric proximity switch, detects the presence or absence of an object by utilizing its ability to block or reflect light. A synchronous circuit activates the circuit, activating the switch. The object is not limited to metal; any object that reflects light (or blocks light) can be detected. The photoelectric switch converts the input current into a light signal at the transmitter, which is then emitted. The receiver detects the target object based on the intensity or presence of the received light. Common applications in security systems include photoelectric smoke detectors, and in industry, they are frequently used to count the number of movements of robotic arms.

[0003] One type of photoelectric switch is the optoelectronic circuit type photoelectric switch. Currently, when existing optoelectronic circuit type photoelectric switches realize multi-position or multi-channel detection functions, multiple individual photoelectric switches need to be arranged, which occupies a large space and has a high cost, and causes many inconveniences in use. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the first aspect of this utility model provides a multi-channel integrated photoelectric switch device.

[0006] The second aspect of this utility model provides a photoelectric switch assembly.

[0007] In view of this, a multi-channel integrated photoelectric switch device is provided according to a first aspect of the embodiments of this application, comprising:

[0008] Pin pads are used to connect the photoelectric switch device to an external circuit to realize the input and output of photoelectric signals.

[0009] A printed circuit board, which is electrically connected to the pin pads, and the input and output of electrical signals of the printed circuit board are realized through the pin pads;

[0010] A light-emitting component, electrically connected to a printed circuit board, is used to emit light signals;

[0011] A number of light-receiving chips are arranged in a straight line to receive light signals emitted by the light-emitting component;

[0012] A light guide is disposed in the optical path of the light-emitting component to guide the light from the light-emitting component to the light-receiving chip, so that each light-receiving chip can receive light.

[0013] In one feasible implementation, it further includes:

[0014] The first housing is used to provide overall protection for the photoelectric switch device and prevent interference from external light. A printed circuit board is provided on the first surface of the first housing, and a light guide mirror is provided on the second surface opposite to the first surface.

[0015] The second housing covers the plurality of light-receiving chips and is used to ensure that the light-receiving chips receive only direct light and are not affected by other light sources.

[0016] In one feasible implementation, the second housing includes:

[0017] The outer casing is disposed on the printed circuit board and covers the light-receiving chip. The surface of the outer casing perpendicular to the printed circuit board is the side surface, and the surface of the outer casing flush with the printed circuit board is the light-inlet surface.

[0018] The light inlet is formed by opening an opening at the position where the light-receiving chip is projected onto the light-receiving surface of the outer shell. The light inlet corresponds one-to-one with the light-receiving chip.

[0019] An insert assembly is provided for each of the light inlets, and the insert assembly is used to open and block the light inlets.

[0020] In one feasible implementation, the light-emitting component includes:

[0021] A light-emitting chip, which is disposed on the printed circuit board, is used as a light source to emit light;

[0022] A convex lens is disposed between the light-emitting chip and the light guide mirror to adjust the light emitted by the light-emitting chip to be parallel.

[0023] In one feasible implementation, the light guide mirror includes:

[0024] The first mirror surface has an angle of 45° with the light path emitted by the light-emitting component.

[0025] A second mirror is connected to the first mirror, and the second mirror is parallel to the light rays reflected by the first mirror.

[0026] The number of third mirror groups corresponds to the number of light-receiving chips. The outermost third mirror group is connected to the second mirror, and the remaining third mirror groups are connected to the outermost third mirror group in turn.

[0027] In one feasible implementation, the third mirror group includes:

[0028] The refractive mirror has an angle of 45° with the light path refracted by the first mirror, and the projected length of the refractive mirror is the projected length of the light-receiving chip.

[0029] An extended mirror is provided, which is parallel to the light path refracted by the first mirror, and the length of the extended mirror is the distance between two adjacent light-receiving chips.

[0030] In one feasible implementation, the insert assembly includes:

[0031] Insert plate component, the insert plate component being used to shield the light inlet;

[0032] An electric telescopic component is electrically connected to the printed circuit board, and the telescopic end of the electric telescopic component is connected to the insert component.

[0033] A second aspect of the embodiments of this application provides a photoelectric switch group, comprising:

[0034] Any of the multi-channel integrated photoelectric switch devices described above;

[0035] A joint is provided at the side edge of the multi-channel integrated photoelectric switch device, and multiple multi-channel integrated photoelectric switch devices are spliced ​​together through the joint.

[0036] In one feasible implementation, the joint includes:

[0037] Electrical contacts, which are electrically connected to the printed circuit board;

[0038] A locking component is provided on the side edge of the printed circuit board. When the two multi-channel integrated photoelectric switch devices are spliced ​​and locked together by the locking component, the electrical contacts of the two multi-channel integrated photoelectric switch devices come into contact.

[0039] In one feasible implementation, the joint further includes:

[0040] The fitting groove assembly includes fitting protrusions and fitting grooves. The two sides of the multi-channel integrated photoelectric switch device that are spliced ​​with other devices are provided with fitting protrusions on one side and fitting grooves on the other side.

[0041] Compared with the prior art, the present invention has at least the following beneficial effects: wherein, the light guide mirror is arranged opposite to the printed circuit board, and the light emitted by the light-emitting component is reflected by the light guide mirror and then guided to the light-receiving chip. There are several light-receiving chips arranged in a straight line. The light guide mirror can reflect the light to the light-receiving chip respectively, thereby realizing the unified control of several light-receiving chips by a single light-emitting component.

[0042] In actual use, an external electrical signal is introduced to the printed circuit board through the pin pads. The printed circuit board activates the light-emitting component, which emits parallel light. The light is guided to the light-receiving chip by the light guide mirror, and the light-receiving chip generates a photoelectric signal. This photoelectric signal is then transmitted from the pin pads to the external components. Attached Figure Description

[0043] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0044] Figure 1 This application provides a structural block diagram of a multi-channel integrated optoelectronic switch device according to one embodiment.

[0045] in, Figure 1 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0046] 110. Pin pad; 120. Printed circuit board; 130. Light-emitting component; 140. Light-receiving chip; 150. Light guide mirror; 160. First housing; 170. Second housing;

[0047] 131. Light-emitting chip; 132. Convex lens;

[0048] 151. First mirror; 152. Second mirror; 153. Third mirror group;

[0049] 171. Outer shell; 172. Light inlet. Detailed Implementation

[0050] To better understand the above technical solutions, the technical solutions of the embodiments of this application will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this application and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this application, rather than limitations on the technical solutions of this application. In the absence of conflict, the embodiments of this application and the technical features in the embodiments can be combined with each other.

[0051] like Figure 1As shown, a multi-channel integrated photoelectric switch device is proposed according to a first aspect of the present application, comprising: a pin pad 110, wherein the photoelectric switch device is connected to an external circuit through the pin pad 110 to realize the input and output of photoelectric signals; a printed circuit board 120, wherein the printed circuit board 120 is electrically connected to the pin pad 110 to realize the input and output of electrical signals of the printed circuit board 120; a light-emitting component 130, wherein the light-emitting component 130 is electrically connected to the printed circuit board 120 for emitting light signals; a light-receiving chip 140, wherein there are several light-receiving chips 140 arranged in a linear manner for receiving the light signals emitted by the light-emitting component 130; and a light guide mirror 150, wherein the light guide mirror 150 is disposed in the optical path of the light-emitting component 130 for guiding the light from the light-emitting component 130 to the light-receiving chip 140, and enabling each light-receiving chip 140 to receive light.

[0052] The multi-channel integrated photoelectric switch device provided in this application includes a pin pad 110, a printed circuit board 120, a light-emitting component 130, a light-receiving chip 140, and a light guide mirror 150.

[0053] In this technical solution, the pin pad 110 is used to connect to external circuits, and the electrical signal input and output of this photoelectric switch are realized through the pin pad 110.

[0054] The printed circuit board 120 is electrically connected to the pin pad 110. The printed circuit board 120 controls the components connected to the printed circuit board 120 through the electrical signals introduced by the pin pad 110. The electrical signals generated by the components on the printed circuit board 120 are also exported through the pin pad 110.

[0055] The light-emitting component 130 is used as a light source to emit light. It can be understood that the light emitted by a simple light-emitting component is radial, but in order to ensure the accuracy and stability of the photoelectric switch, the light emitted by the light-emitting component 130 is parallel.

[0056] The light-receiving chip 140 is disposed on the printed circuit board 120. The light emitted by the light-emitting component 130 acts on the light-receiving chip 140. It can be understood that since the light emitted by the light-emitting component 130 has a parallel light path and the light-receiving chip 140 and the light-emitting component 130 are on the same plane, the light emitted by the light-emitting component 130 will not affect the light-receiving chip 140 in the absence of other interference.

[0057] The light guide mirror 150 is positioned opposite to the printed circuit board 120. The light emitted by the light-emitting component 130 is reflected by the light guide mirror 150 and then guided to the light-receiving chip 140. There are several light-receiving chips 140 arranged in a straight line. The light guide mirror 150 can reflect the light to the light-receiving chips 140 respectively, thereby realizing the unified control of several light-receiving chips 140 by a single light-emitting component 130.

[0058] In actual use, an external electrical signal is introduced to the printed circuit board 120 through the pin pad 110. The printed circuit board 120 activates the light-emitting component 130, which emits parallel light. The light is guided to the light-receiving chip 140 through the light guide mirror 150. The light-receiving chip 140 generates a photoelectric signal, which is then transmitted from the pin pad 110 to the external component.

[0059] This technical solution achieves the integration of multiple photoelectric switches into one, eliminating the need to arrange multiple individual photoelectric switch products to realize multi-position and multi-channel detection functions. It occupies less space and saves more space in practical applications, making the product structure design of products using this photoelectric switch more rational and conducive to product upgrades and functional diversification.

[0060] like Figure 1 As shown, it also includes: a first housing 160, which is used to provide overall protection for the photoelectric switch device and avoid interference from external light. A printed circuit board 120 is provided on the first surface of the first housing 160, and a light guide mirror 150 is provided on the second surface opposite to the first surface; and a second housing 170, which covers the plurality of light-receiving chips 140. The second housing 170 is used to ensure that the light-receiving chips 140 only receive direct light and avoid the influence of other light.

[0061] In this technical solution, the photoelectric switch also includes a first housing 160 and a second housing 170. The first housing 160 covers the other components of the photoelectric switch. This arrangement isolates ambient light and prevents ambient light from affecting the light-receiving chip 140, thereby increasing the stability of the photoelectric switch. At the same time, the housing 170 provides a mounting base for the light guide mirror 150, which increases the rationality of this technical solution.

[0062] The second housing 170 covers several light-receiving chips 140. It is understood that although the light emitted by the light-emitting component 130 has a parallel light path, it is still difficult to avoid some light reflecting back to the light-receiving chips 140. Therefore, the second housing 170 is added. The second housing 170 can filter non-direct light and effectively avoid the influence of stray light on the light-receiving chips 140, further increasing the stability of the photoelectric switch.

[0063] like Figure 1As shown, the second housing 170 includes: an outer shell 171, which is disposed on the printed circuit board 120 and covers the light-receiving chip 140. The surface of the outer shell 171 perpendicular to the printed circuit board 120 is a side surface, and the surface of the outer shell 171 flat to the printed circuit board 120 is a light-inlet surface; a light inlet 172, which has an opening at the position where the light-receiving chip 140 is projected onto the light-inlet surface of the outer shell 171, and the light inlet 172 corresponds one-to-one with the light-receiving chip 140; and a plug-in assembly, which is provided for each light inlet 172 and is used to open and block the light inlet 172.

[0064] In this technical solution, the second housing 170 includes an outer shell 171, a light inlet 172, and a plate assembly.

[0065] The light inlet 172 is located in the second housing 170, and the light inlet 172 corresponds one-to-one with the light receiving chip 140. Specifically, the light receiving chip 140 has the light inlet 172 located at the projection of the light receiving surface of the housing 171. This arrangement ensures that the light that should illuminate the light receiving chip 140 can only illuminate the corresponding light receiving chip 140 and will not affect the other light receiving chips 140. This arrangement improves the stability of the photoelectric switch.

[0066] The insert assembly is disposed at the light inlet 172. The insert assembly can block or open the light inlet 172. Each light inlet 172 has its own insert assembly. When a photoelectric signal is needed from a certain light-receiving component, the insert assembly in that light inlet 172 is opened; when a photoelectric signal is not needed from a certain light-receiving component, the light inlet 172 is blocked, isolating the light path entering that light inlet 172. In this technical solution, the individual control of the light-receiving chip 140 can be achieved through the insert assembly, eliminating the need for disassembly and reassembly, making the photoelectric switch more flexible.

[0067] like Figure 1 As shown, the light-emitting component 130 includes: a light-emitting chip 131 disposed on the printed circuit board 120 for emitting light as a light source; and a convex lens 132 disposed between the light-emitting chip 131 and the light guide mirror 150 for adjusting the light emitted by the light-emitting chip 131 to be parallel.

[0068] In this technical solution, the light-emitting component 130 includes a light-emitting chip 131 and a convex lens 132. The light-emitting chip 131 is electrically connected to the printed circuit board 120. The printed circuit board 120 can control the light-emitting chip 131 to emit and extinguish. The light-emitting chip 131 serves as a light source to realize the light response of the photoelectric switch.

[0069] The convex lens 132 is positioned between the light-emitting chip 131 and the light guide mirror 150, with its convex surface facing the light-emitting chip 131. The light emitted from the light-emitting chip 131 is refracted by the convex lens 132 and adjusted into a parallel light path. This arrangement facilitates unified adjustment and guidance of the light path by the guide mirror, preventing the light emitted by the light-emitting chip 131 from radiating outwards and affecting the light-receiving chip 140. Simultaneously, it maximizes the utilization of the light emitted by the light-emitting chip 131, improving its utilization rate and reducing the power requirements of the light-emitting chip 131. This improves the stability of the photoelectric switch while reducing production costs.

[0070] like Figure 1 As shown, the light guide mirror 150 includes: a first mirror 151, the angle between the first mirror 151 and the light path emitted by the light-emitting component 130 is 45°; a second mirror 152, the second mirror 152 is connected to the first mirror 151 and is parallel to the light reflected by the first mirror 151; and a third mirror group 153, the number of the third mirror group 153 corresponding to the number of the light-receiving chips 140, the outermost third mirror group 153 being connected to the second mirror 152, and the remaining third mirror groups 153 being connected to the outermost third mirror group 153 in sequence.

[0071] In this technical solution, the light guide mirror 150 includes a first mirror 151, a second mirror 152, and a third mirror group 153.

[0072] In this system, the parallel light emitted by the first mirror 151 and the light-emitting component 130 forms a 45° angle. After being reflected by the first mirror 151, the light is bent at a 90° angle and also forms a parallel light path, which is parallel to the second mirror 152 until the light path travels to the third mirror group 153. Each third mirror group 153 has a corresponding light-receiving chip 140. Each third mirror group 153 can refract light to the corresponding light-receiving chip 140, thereby realizing multi-channel, integrated photoelectric switch control.

[0073] like Figure 1 As shown, the third mirror group 153 includes: a refractive mirror, the angle between the refractive mirror and the light path refracted by the first mirror 151 is 45°, and the projection length of the refractive mirror is the projection length of the light-receiving chip 140; and an extension mirror, the extension mirror being parallel to the light path refracted by the first mirror 151, and the length of the extension mirror being the distance between two adjacent light-receiving chips 140.

[0074] In this technical solution, the third mirror group 153 includes a refractive mirror and an extended mirror. The angle between the refractive mirror and the contact light path is 45°. It can be understood that the angle between the refractive mirror and the first mirror 151 is 90°. After the light path is refracted by the refractive mirror, its light path angle is 90°, which is parallel to but opposite in direction to the initial light path emitted by the light-emitting component 130. The light path reflected by the refractive mirror can act perpendicularly on the light-receiving chip 140 to achieve the best photoelectric effect.

[0075] The projected length of the refracting mirror is equal to the length of the light-receiving chip 140. This arrangement allows all the light refracted by the refracting mirror to act on the light-receiving chip 140, improving the light utilization rate. At the same time, the refracting mirrors of the two third mirror groups 153 are connected by extending the mirror surface, which can reduce the overall slope of the third mirror group 153, reduce the overall height of the photoelectric switch device, and save installation space.

[0076] like Figure 1 As shown, the insert assembly includes: an insert member for shielding the light inlet 172; and an electrically retractable member electrically connected to the printed circuit board 120, the retractable end of which is connected to the insert member.

[0077] In this technical solution, the insert assembly includes an insert plate and an electric telescopic component. The telescopic end of the electric telescopic component is connected to the insert plate. When it is necessary to block the light inlet 172, the telescopic end of the electric telescopic component extends, causing the insert plate to block the light inlet 172. When it is necessary to open the light inlet 172, the telescopic end of the electric telescopic component retracts, and the insert plate disengages from the light inlet 172, thus opening the light inlet 172.

[0078] like Figure 1 As shown, a second aspect of the embodiments of this application provides a photoelectric switch assembly, comprising: any of the multi-channel integrated photoelectric switch devices described above; a joint, the joint being disposed on the side edge of the multi-channel integrated photoelectric switch device, wherein a plurality of the multi-channel integrated photoelectric switch devices are spliced ​​together through the joint.

[0079] The photoelectric switch assembly provided in this application includes the above-described multi-channel integrated photoelectric switch device and the interface.

[0080] When a single multi-channel integrated photoelectric switch device cannot meet the usage requirements, it can be spliced ​​through the joint without separate setup, which further improves the ease of use of this photoelectric switch group and can cope with more usage scenarios.

[0081] like Figure 1As shown, the joint includes: an electrical contact electrically connected to the printed circuit board 120; and a locking member disposed on the side edge of the printed circuit board 120. When the two multi-channel integrated photoelectric switch devices are spliced ​​and locked together by the locking member, the electrical contacts of the two multi-channel integrated photoelectric switch devices come into contact.

[0082] In this technical solution, the joint includes electrical contacts and a locking element.

[0083] The electrical contacts are electrically connected to the printed circuit board 120. When the electrical contacts of the printed circuit boards 120 of the two photoelectric switches come into contact, the two photoelectric switches can be electrically connected. During use, the photoelectric switches can be electrically connected by connecting the electrical contacts, without the need to wire each photoelectric switch separately.

[0084] When multiple multi-channel integrated photoelectric switch devices are connected, a locking member is used to connect two photoelectric switches. When connected through the locking member, the electrical contacts of the two photoelectric switches come into contact.

[0085] like Figure 1 As shown, the joint further includes: a fitting groove group, which includes a fitting protrusion and a fitting groove. The two sides of the multi-channel integrated photoelectric switch device that are spliced ​​with other devices are provided with a fitting protrusion on one side and a fitting groove on the other side.

[0086] In this technical solution, the joint also includes a set of fitting slots, which are used to make the two photoelectric switches to be connected more stably and tightly connected together.

[0087] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0088] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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 unit 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.

[0089] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0090] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-channel integrated photoelectric switch device, characterized in that, include: Pin pads are used to connect the photoelectric switch device to an external circuit to realize the input and output of photoelectric signals. A printed circuit board, which is electrically connected to the pin pads, and the input and output of electrical signals of the printed circuit board are realized through the pin pads; A light-emitting component, electrically connected to a printed circuit board, is used to emit light signals, and the light emitted by the light-emitting component has a parallel light path; A number of light-receiving chips are arranged in a straight line to receive light signals emitted by the light-emitting component; A light guide is disposed in the optical path of the light-emitting component to guide the light from the light-emitting component to the light-receiving chip, so that each light-receiving chip can receive light.

2. The multi-channel integrated photoelectric switch device according to claim 1, characterized in that, Also includes: The first housing is used to provide overall protection for the photoelectric switch device and prevent interference from external light. A printed circuit board is provided on the first surface of the first housing, and a light guide mirror is provided on the second surface opposite to the first surface. The second housing covers the plurality of light-receiving chips and is used to ensure that the light-receiving chips receive only direct light and are not affected by other light sources.

3. The multi-channel integrated photoelectric switch device according to claim 2, characterized in that, The second housing includes: The outer casing is disposed on the printed circuit board and covers the light-receiving chip. The surface of the outer casing perpendicular to the printed circuit board is the side surface, and the surface of the outer casing flush with the printed circuit board is the light-inlet surface. The light inlet is formed by opening an opening at the position where the light-receiving chip is projected onto the light-receiving surface of the outer shell. The light inlet corresponds one-to-one with the light-receiving chip. An insert assembly is provided for each of the light inlets, and the insert assembly is used to open and block the light inlets.

4. The multi-channel integrated photoelectric switch device according to claim 1, characterized in that, The light-emitting component includes: A light-emitting chip, which is disposed on the printed circuit board, is used as a light source to emit light; A convex lens is disposed between the light-emitting chip and the light guide mirror to adjust the light emitted by the light-emitting chip to be parallel.

5. The multi-channel integrated photoelectric switch device according to claim 1, characterized in that, The light guide mirror includes: The first mirror surface has an angle of 45° with the light path emitted by the light-emitting component. A second mirror is connected to the first mirror, and the second mirror is parallel to the light rays reflected by the first mirror. The number of third mirror groups corresponds to the number of light-receiving chips. The outermost third mirror group is connected to the second mirror, and the remaining third mirror groups are connected to the outermost third mirror group in turn.

6. The multi-channel integrated photoelectric switch device according to claim 5, characterized in that, The third mirror group includes: The refractive mirror has an angle of 45° with the light path refracted by the first mirror, and the projected length of the refractive mirror is the projected length of the light-receiving chip. An extended mirror is provided, which is parallel to the light path refracted by the first mirror, and the length of the extended mirror is the distance between two adjacent light-receiving chips.

7. The multi-channel integrated photoelectric switch device according to claim 3, characterized in that, The insert assembly includes: Insert plate component, the insert plate component being used to shield the light inlet; An electric telescopic component is electrically connected to the printed circuit board, and the telescopic end of the electric telescopic component is connected to the insert component.

8. A photoelectric switch assembly, characterized in that, include: The multi-channel integrated photoelectric switch device as described in any one of claims 1-7; A joint is provided at the side edge of the multi-channel integrated photoelectric switch device, and multiple multi-channel integrated photoelectric switch devices are spliced ​​together through the joint.

9. The photoelectric switch assembly as described in claim 8, characterized in that, The joint includes: Electrical contacts, which are electrically connected to the printed circuit board; A locking component is provided on the side edge of the printed circuit board. When the two multi-channel integrated photoelectric switch devices are spliced ​​and locked together by the locking component, the electrical contacts of the two multi-channel integrated photoelectric switch devices come into contact.

10. The photoelectric switch assembly as described in claim 8, characterized in that, The joint also includes: The fitting groove assembly includes fitting protrusions and fitting grooves. The two sides of the multi-channel integrated photoelectric switch device that are spliced ​​with other devices are provided with fitting protrusions on one side and fitting grooves on the other side.

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