Transmission-type photoelectric switch

Abstract

The utility model discloses a transmission-type photoelectric switch, and the photoelectric switch comprises a working part which is used for detecting whether an object to be detected exists or not, and comprises a pin; the connecting part comprises wires, the wires are in welded connection with the pins, and the number of the wires is the same as that of the pins; the connector comprises a male head and a female head which are mutually plugged, one end, far away from the pin, of the wire is fixedly connected with the male head or the female head, and the PCB is connected with the female head or the male head; after the connecting part is connected with the connector, electric energy is provided for the working part. Through the arrangement of the connector, the working part can be conveniently disassembled and assembled, so that the working part can be conveniently moved to a required position; and meanwhile, through the arrangement of the connecting part, the distance between the working part and the PCB can be increased, and the use flexibility of the working part is further improved.

Description

Technical Field

[0001] This utility model relates to the field of photoelectric switch technology, and in particular to a transmissive photoelectric switch. Background Technology

[0002] A transmissive photoelectric switch consists of two parts: a transmitter and a receiver. The transmitter emits a light beam; when an object enters the path of the light beam, part of the beam is blocked by the object and cannot reach the receiver. The receiver determines the presence or absence of the object by detecting changes in the light intensity.

[0003] In related technologies, the pins of a transmissive photoelectric switch need to be soldered onto a PCB board. This makes it difficult to move the transmissive photoelectric switch, and because the transmissive photoelectric switch is fixedly connected to the PCB, the PCB needs to be placed in a position that matches the working position of the transmissive photoelectric switch, which affects the flexibility of the transmissive photoelectric switch. 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] In view of this, the present invention provides a transmissive photoelectric switch, wherein the connector facilitates the assembly and disassembly of the working part, thereby facilitating the movement of the working part to the required position; at the same time, the connection part increases the distance between the working part and the PCB board, thereby improving the flexibility of the working part in use.

[0006] Specifically, the following technical solutions are included:

[0007] This utility model provides a transmissive photoelectric switch, the transmissive photoelectric switch comprising:

[0008] A working section is configured to detect the presence of an object to be measured, the working section including pins;

[0009] A connecting part, the connecting part including a wire, the wire being soldered to the pin, the number of the wires being the same as the number of the pins;

[0010] A connector, including a male and a female connector that are plugged into each other, wherein one end of the wire away from the pin is fixedly connected to the male or the female connector, and the PCB board is connected to the female or the male connector;

[0011] After the connecting part is connected to the connector, it provides electrical power to the working part.

[0012] Optionally, the working part includes:

[0013] A light-emitting element for emitting a light beam, the light-emitting element being connected to the two pins;

[0014] A light-receiving element is used to receive the light beam. The light-receiving element is positioned opposite to the light-emitting element, and the light-receiving element is connected to two pins.

[0015] A housing is fitted over the light-emitting element and the light-receiving element, with some of the pins located outside the housing.

[0016] Optionally, the length of the pin located outside the housing is 1 cm to 1.2 cm.

[0017] Optionally, the transmissive photoelectric switch further includes:

[0018] A first heat shrink tubing is fitted over the connection between the pin and the wire, and the number of first heat shrink tubing is the same as the number of pins.

[0019] Optionally, the diameter of the first heat shrink tubing is 1 mm, and the length of the first heat shrink tubing is 1.8 cm to 2.4 cm.

[0020] Optionally, the transmissive photoelectric switch further includes:

[0021] A second heat shrink tubing is disposed between the connecting portion and the connector, and the second heat shrink tubing is sleeved over multiple first heat shrink tubings.

[0022] Optionally, the diameter of the second heat shrink tubing is 4 mm or 4.5 mm, and the length of the second heat shrink tubing is 70% to 90% of the length of the wire.

[0023] Optionally, the multiple wires are set to different colors, and the different colored wires are used to distinguish the different pins connected to the wires.

[0024] Optionally, the wire is integrally formed with the connector.

[0025] Optionally, the connector is a connector that includes at least four connection holes.

[0026] The transmissive photoelectric switch provided in this embodiment includes a working part, a connecting part, and a connector connected in sequence. The connector includes a male and a female connector that plug into each other. A wire is connected to the male or female connector. After the female or male connector is soldered to the PCB board, the PCB board provides power to the working part through the connecting part via the plugging of the male and female connectors. The plugging of the male and female connectors facilitates the movement of the transmissive photoelectric switch, reduces the assembly and disassembly time, and improves the installation efficiency of the transmissive photoelectric switch. The connecting part is a wire. One end of the wire is soldered to the pin of the working part, and the other end of the wire is connected to the connector. Different lengths of wire can be selected according to actual needs, so that the placement of the PCB board does not need to be adapted to the working position of the transmissive photoelectric switch, improving the installation flexibility of the PCB board and the transmissive photoelectric switch, and expanding the applicability of the transmissive photoelectric switch.

[0027] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 A schematic diagram of a transmission photoelectric switch according to an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the working part according to an embodiment of the present invention;

[0031] Figure 3 This is a side view of the working part according to an embodiment of the present invention;

[0032] Figure 4 This is a schematic diagram of a connector and wire according to an embodiment of the present invention.

[0033] in, Figures 1 to 4 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0034] 100 Transmissive photoelectric switch, 110 Working part, 111 Light-emitting element, 112 Light-receiving element, 113 Housing, 114 Pin, 120 Connector, 121 Wire, 130 First heat shrink tubing, 140 Second heat shrink tubing, 150 Connector. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0036] Before providing a further detailed description of the embodiments of this utility model, the directional terms used in the embodiments of this utility model, such as "upper part", "lower part" and "side part", do not have the meaning of limiting the scope of protection of this utility model.

[0037] To make the technical solution and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0038] Figure 1 This is a schematic diagram of a transmission photoelectric switch according to an embodiment of the present invention.

[0039] like Figure 1 As shown, one embodiment of the present invention provides a transmissive photoelectric switch 100, which includes:

[0040] The working part 110 is configured to detect the presence of the object to be measured, and the working part 110 includes pins 114.

[0041] Connector 120 includes wire 121, which is soldered to pin 114. The number of wires 121 is the same as the number of pins 114.

[0042] Connector 150 includes a male and a female connector that are plugged into each other. One end of wire 121 away from pin 114 is fixedly connected to the male or female connector. The PCB board is connected to the female or male connector.

[0043] After the connecting part 120 is connected to the connector 150, it provides power to the working part 110.

[0044] The transmissive photoelectric switch 100 includes a working part 110, a connecting part 120, and a connector 150 connected in sequence. The connector 150 includes a male and a female connector that are plugged into each other. The wire 121 of the connecting part 120 is connected to the male or female connector. After the female or male connector is soldered to the PCB board (not shown), the PCB board provides power to the working part 110 through the connecting part 120 by plugging in the male and female connectors. The plugging in the male and female connectors facilitates the movement of the transmissive photoelectric switch 100, reduces the assembly and disassembly time of soldering and disassembly, and improves the installation efficiency of the transmissive photoelectric switch 100. The connecting part 120 is a wire 121. One end of the wire 121 is soldered to the pin 114 of the working part 110, and the other end of the wire 121 is connected to the connector 150. Different lengths of wire 121 can be selected according to actual needs, so that the position of the PCB board does not need to be adapted to the working position of the transmissive photoelectric switch 100, improving the installation flexibility of the PCB board and the transmissive photoelectric switch 100 and increasing the applicability of the transmissive photoelectric switch 100.

[0045] Specifically, when the working part 110 needs to be moved to another location, the existing transmissive photoelectric switch 100 requires melting the solder joints and removing the working part 110, or moving it along with the PCB board. However, this would affect other components connected to the PCB board. Therefore, this application makes the connecting part 120 detachable, thus avoiding melting the solder joints and resoldering. It is only necessary to solder a male or female connector 150 onto the PCB board and a female or male connector onto one side of the working part 110. The detachable connection between the working part 110 and the PCB board is achieved through the connection of the male and female connectors of the connector 150. Meanwhile, existing transmissive photoelectric switches 100 are directly soldered to the PCB board, fixing their positions. To meet the usage requirements of the transmissive photoelectric switch 100, the PCB board needs to adapt to the working position of the working part 110. Sometimes, the installation space for the transmissive photoelectric switch 100 is small, affecting its installation and use. This application addresses this by providing a wire 121 between the working part 110 and the connector 150. The wire 121 extends the distance between the working part 110 and the PCB board, allowing the working part to operate normally without requiring the PCB board to adapt to the working position of the transmissive photoelectric switch 100, thus improving the installation flexibility of the transmissive photoelectric switch 100. It is understood that different lengths of wire 121 can be selected according to actual needs to achieve the connection between the working part 110 and the PCB board.

[0046] Figure 2 This is a schematic diagram of the working part according to an embodiment of the present invention; Figure 3 This is a side view of the working part according to an embodiment of the present invention.

[0047] In one feasible implementation, such as Figure 2and Figure 3 As shown, the working unit 110 includes:

[0048] The light-emitting element 111 is used to emit a light beam, and the light-emitting element 111 is connected to two pins 114;

[0049] The light-receiving element 112 is used to receive the light beam. The light-receiving element 112 is arranged opposite to the light-emitting element 111. The light-receiving element 112 is connected to two pins 114.

[0050] The housing 113 is fitted over the light-emitting element 111 and the light-receiving element 112, and some of the pins 114 are located outside the housing 113.

[0051] The working unit 110 includes a light-emitting element 111 and a light-receiving element 112 arranged opposite to each other. A measurement area is formed between the light-emitting element 111 and the light-receiving element 112. The light beam emitted by the light-emitting element 111 passes through the measurement area and is received by the light-receiving element 112. When an object enters the measurement area, at least part of the light beam is blocked, and the light-receiving element 112 cannot receive the entire light beam, thereby outputting different control signals and controlling different control actions.

[0052] For example, the luminescent element 111 uses an infrared light source because infrared light has strong penetrating power and is more likely to form rays, thus improving the reliability of the working part.

[0053] In one feasible implementation, the length of the pin 114 located outside the housing 113 is 1 cm to 1.2 cm.

[0054] In order to facilitate the power supply of the working part 110 and ensure the normal operation of the working part 110, at least some of the pins 114 of the light-emitting element 111 and the light-receiving element 112 need to be extended out of the outer side of the housing 113 to facilitate the soldering of the working part 110 to the PCB board or connector 150.

[0055] For example, the length of pin 114 outside the housing 113 is typically 1cm to 1.2cm. This length makes it easier to solder pin 114 and improves the reliability and stability of soldering pin 114 to wire 121.

[0056] In one feasible embodiment, the transmissive photoelectric switch 100 further includes:

[0057] The first heat shrink tubing 130 is sleeved at the connection between the pin 114 and the wire 121, and the number of the first heat shrink tubing 130 is the same as the number of pins 114.

[0058] In order to prevent short circuits and open circuits from occurring due to the exposed weld joint after the wire 121 and the pin 114 are welded, a first heat shrink tubing 130 is fitted at the weld joint to protect the weld joint.

[0059] Specifically, the required length of the first heat shrink tubing 130 is cut; and the first heat shrink tubing 130 is placed over the welding joint of the wire 121 and the pin 114, ensuring that the first heat shrink tubing 130 completely covers the welding joint; a heat source (such as a lighter flame or a hot air gun) is brought close to the first heat shrink tubing 130 to cause the first heat shrink tubing 130 to shrink and tightly wrap around the welding position. This can protect the welding joint, on the one hand, avoiding short circuits caused by external interference, and on the other hand, avoiding open circuits caused by friction causing the weld to fall off, thus improving the reliability and stability of the transmission photoelectric switch 100.

[0060] It should be noted that when heating the first heat shrink tubing 130, the heating should be uniform to avoid local overheating that could damage the first heat shrink tubing 130.

[0061] Understandably, half the length of the first heat shrink tubing 130 typically covers the pin 114 and half the length covers the wire 121, ensuring the balance and uniformity of the wrapping around the weld joint.

[0062] In one feasible implementation, the diameter of the first heat shrink tubing 130 is 1 mm, and the length of the first heat shrink tubing 130 is 1.8 cm to 2.4 cm.

[0063] In this embodiment, the diameter of the first heat shrink tubing 130 can be selected as 0.8mm, 1mm, or 1.5mm. However, in actual operation, since the diameter of the wire 121 is usually greater than or equal to 0.8mm, the first heat shrink tubing 130 is not smoothly fitted, affecting installation efficiency. When the diameter of the first heat shrink tubing 130 is selected as 1.5mm, after heating and shrinking, it cannot completely wrap around the wire 121 and the pin 114. In other words, the first heat shrink tubing 130 can still move around on the wire 121 and the pin 114, failing to protect the weld joint. Therefore, a heat shrink tubing with a diameter of 1mm was ultimately selected. This allows it to be smoothly fitted onto the wire 121 and the pin 114, and after heating and shrinking, it can tightly wrap around the weld joint, protecting the weld joint of the wire 121 and the pin 114 and improving the reliability and stability of the connection between the working part 110 and the connecting part 120.

[0064] It should be noted that half of the length of the first heat shrink tubing 130 covers one side of the pin 114 and the other half covers one side of the wire 121. In this way, after the first heat shrink tubing 130 is heat-shrinked, the coverage distance at both ends of the weld is basically the same, which can ensure the balance of protection for the weld and extend the protection time of the weld.

[0065] For example, in this embodiment, the protruding length of the pin 114 is 1cm. Correspondingly, the length of the first heat shrink tubing 130 is selected to be 2cm, so that the first heat shrink tubing 130 can cover the 1cm protruding from the pin 114 and the 1cm on the side of the wire 121, ensuring the reliability of the protection of the solder joint.

[0066] In one feasible embodiment, the transmissive photoelectric switch 100 further includes:

[0067] The second heat shrink tubing 140 is disposed between the connecting part 120 and the connector 150, and the second heat shrink tubing 140 is sleeved over the multiple first heat shrink tubing 130.

[0068] The second heat shrink tubing 140 is wrapped around multiple first heat shrink tubing 130s and covers the solder joints, that is, it is wrapped around multiple pins 114 and wires 121, thus achieving the gathering of pins 114 and wires 121. On the one hand, it can prevent the wires 114 from being scattered and affecting the arrangement of other components; on the other hand, it also protects the wire bundle and prevents pulling on a single wire 121, which would affect the stability of the connection between the wire 121 and the pin 114.

[0069] Specifically, the required length of the second heat shrink tubing 140 is cut; and the second heat shrink tubing 140 is placed over the multiple wires 121 and multiple pins 114, ensuring that the second heat shrink tubing 140 can accommodate the multiple wires 121 in the same space; a heat source (such as a lighter flame or a heat gun) is brought close to the second heat shrink tubing 140 to tighten it, thus wrapping the multiple wires 121 and multiple pins 114. This provides some protection for the first heat shrink tubing 130, and further protects the welded joint. On the other hand, it also accommodates the multiple wires 121 and multiple pins 114 within a certain space of the second heat shrink tubing 140, protecting the wires 121 and pins 114 from external pulling, which would affect the normal use of the transmissive photoelectric switch 100. At the same time, it leaves ample space for other components, ensuring the feasibility of the electrical component layout. It should be noted that when heating the second heat shrink tubing 140, the heating should be uniform to avoid local overheating that could damage the second heat shrink tubing 140.

[0070] Understandably, in order to ensure the storage function of the second heat shrink tubing 140, the length of the second heat shrink tubing 140 is usually selected according to the connection length of the wire 121 and the tube pin 114, and usually only a portion of the space is left at both ends to improve the flexibility of the working part 110.

[0071] In one feasible implementation, the diameter of the second heat shrink tubing 140 is 4 mm or 4.5 mm, and the length of the second heat shrink tubing 140 is 70% to 90% of the wire length.

[0072] In this embodiment, the second heat shrink tubing 140 can be selected with a diameter of 4mm or 4.5mm, both of which can achieve the function of taking in the wire.

[0073] For example, the length of the second heat shrink tubing 140 is 70% to 90% of the length of the wire 121, and the length of the wire 121 is selected according to actual needs. That is, the length of the wire 121 is selected based on the distance between the working position of the working part and the normal fixed position of the PCB board, thereby improving the flexibility of the transmissive photoelectric switch 100. In this embodiment, the length of the wire 121 is 37cm, and the length of the second heat shrink tubing 140 is selected from 25.9cm to 33.3cm, and further, the length of the second heat shrink tubing 140 is selected as 32cm.

[0074] In one possible implementation, multiple wires 121 are set to different colors, and the different colored wires 121 are used to distinguish the different pins 114 connected to the wires 121.

[0075] It should be noted that since each pin 114 has a specific soldering position when directly connected to the PCB board, the wires 121 connected to the pins 114 are set to different colors to distinguish them. This makes it easy for the other end of the connector 150 to be directly connected to one end of the wires 121 after being connected to the PCB board. In other words, the wires on one end of the connector 150 connected to the PCB board are also set to different colors, and the colors of the wires 121 on the working part 110 side must match the colors of the wires on the PCB board.

[0076] For example, in this embodiment, the four wires 121 can be brown, red, black and orange respectively, so as to distinguish the different pins 114 connected.

[0077] Figure 4 This is a schematic diagram of a connector and wire according to an embodiment of the present invention.

[0078] In one feasible implementation, such as Figure 4 As shown, wire 121 and connector 150 are integrally formed.

[0079] To facilitate connection, the wire 121 can be directly fixedly connected to the male or / and female connector of the connector 150 at the factory. In this embodiment, the wire 121 connected to the working part 110 is fixedly connected to the female connector of the connector 150, and the corresponding PCB board is soldered to the male connector of the connector 150.

[0080] Specifically, after bringing the connector 150 and wires 121 to the site, firstly, the first heat shrink tubing 130 is fitted onto the four wires 121 respectively, and then the second heat shrink tubing 140 is fitted onto the outside of the four wires 121. The second heat shrink tubing 140 is then moved to the end of the wires close to the connector 150. The wires 121 and pins 114 are soldered. Then, the first heat shrink tubing 130 is moved towards one end of the working part 110 until the other end of the first heat shrink tubing 130 touches the housing 113 and stops. The first heat shrink tubing 130 is then heated. The second heat shrink tubing 140 is moved towards one side of the working part 110 until it covers the solder joint. The second heat shrink tubing 140 is then heated to achieve the protection of the solder joint by the first heat shrink tubing 130 and the function of the second heat shrink tubing 140 for wire winding.

[0081] In one possible implementation, connector 150 is a connector 150 including at least four connection holes.

[0082] Since this application has four pins 114, it requires four wires 121. Therefore, the connector 150 needs to have at least four connection holes. Alternatively, a connector 150 with five connection holes can be selected, where one connection hole is not used.

[0083] It should be noted that, through the structure of this application, the female connector 150 is connected to the working part 110, and the male connector 150 is connected to the PCB board. This enables a detachable connection between the working part 110 and the PCB board. When the working part needs to be moved to another position, simply plugging and unplugging the male and female connectors of the connector 150 completes the movement of the working part 110, reducing the soldering and melting process and improving the installation and working efficiency of the working part 110. Simultaneously, the connection between the working part 110 and the female connector 150 via the wire 121 extends the distance between the working part 110 and the PCB board, increasing the flexibility of the working part 110's use and eliminating space limitations, thus expanding the applicability of the transmissive photoelectric switch 100.

[0084] In this invention, the terms "first" and "second" 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 expressly defined.

[0085] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only.

[0086] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A transmissive photoelectric switch, characterized in that, The transmissive photoelectric switch includes: A working section is configured to detect the presence of an object to be measured, the working section including pins; A connecting part, the connecting part including a wire, the wire being soldered to the pin, the number of the wires being the same as the number of the pins; A connector, including a male and a female connector that are plugged into each other, wherein one end of the wire away from the pin is fixedly connected to the male or the female connector, and a PCB board is connected to the female or the male connector; After the connecting part is connected to the connector, it provides electrical power to the working part.

2. The transmission-type photoelectric switch according to claim 1, characterized in that, The working unit includes: A light-emitting element for emitting a light beam, the light-emitting element being connected to the two pins; A light-receiving element is used to receive the light beam. The light-receiving element is positioned opposite to the light-emitting element, and the light-receiving element is connected to two pins. A housing is fitted over the light-emitting element and the light-receiving element, with some of the pins located outside the housing.

3. The transmission-type photoelectric switch according to claim 2, characterized in that, The length of the pin located outside the housing is 1 cm to 1.2 cm.

4. The transmission-type photoelectric switch according to claim 1, characterized in that, The transmission photoelectric switch also includes: A first heat shrink tubing is fitted over the connection between the pin and the wire, and the number of first heat shrink tubing is the same as the number of pins.

5. The transmission-type photoelectric switch according to claim 4, characterized in that, The diameter of the first heat shrink tubing is 1 mm, and the length of the first heat shrink tubing is 1.8 cm to 2.4 cm.

6. The transmission-type photoelectric switch according to claim 4, characterized in that, The transmission photoelectric switch also includes: A second heat shrink tubing is disposed between the connecting portion and the connector, and the second heat shrink tubing is sleeved over multiple first heat shrink tubings.

7. The transmission-type photoelectric switch according to claim 6, characterized in that, The diameter of the second heat shrink tubing is 4 mm or 4.5 mm, and the length of the second heat shrink tubing is 70% to 90% of the length of the wire.

8. The transmission-type photoelectric switch according to claim 1, characterized in that, The multiple wires are set to different colors, and the different colored wires are used to distinguish the different pins connected to the wires.

9. The transmission-type photoelectric switch according to claim 1, characterized in that, The wire is integrally formed with the connector.

10. The transmission-type photoelectric switch according to claim 1, characterized in that, The connector is a connector that includes at least four connection holes.

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