Ultra-short body proximity sensor

Abstract

The utility model relates to the technical field of proximity sensors, in particular to an ultrashort body proximity sensor. The ultra-short body proximity sensor comprises a housing part and a sensor base body part, and the housing part comprises a housing, a threaded ring, a stop block and a sleeve; the sensor base body part comprises an induction shell, a circuit board, a tank-shaped ferrite and a connecting piece. According to the utility model, the baffle block and the threaded ring are in butt joint outside the shell, so that the contact area between the shell and the fixed base can be increased, the connection strength between the shell and the fixed base is improved, and the connecting piece is used for keeping the relative positions of the circuit board, the induction shell and the tank-type ferrite stable; the circuit board of the composite integrated component can greatly compress the occupied space of the circuit board, the multi-layer structure is high in heat dissipation capacity, the four-layer wiring structure improves the anti-interference capacity of the circuit board and improves the application range of the sensor, and the strip-shaped protrusions limit the connecting pieces to prevent the circuit board fixed by the connecting pieces from rotating in the shell.

Description

Technical Field

[0001] The utility model relates to the technical field of proximity sensors, in particular to an ultra-short body proximity sensor. Background Art

[0002] A proximity sensor is a device that can sense the approach of an object. It uses the sensitive characteristics of a displacement sensor to identify the approach of an object and output a corresponding switch signal. Therefore, a proximity sensor is often called a proximity switch. It is a general term for sensors that replace contact detection methods such as switches and do not require contact with the object being detected. It can detect the movement and existence information of an object and convert it into an electrical signal.

[0003] The existing 8mm diameter proximity sensors are traditionally designed with a length ranging from 30mm to 45mm, with the shortest being 18mm. The narrow space during the installation of precision equipment limits the sensor from being installed at the workstation and making it impossible to detect, limiting the functionality of the automated equipment.

[0004] Therefore, those skilled in the art provide an ultra-short proximity sensor to solve the problems raised in the above background technology. Utility Model Content

[0005] The technical problem to be solved by the utility model is that in the prior art, the narrow space during the installation of precision equipment is limited, the sensor cannot be installed and the workstation cannot be detected, resulting in the disadvantage of limited functions of the automation equipment. For this reason, we propose an ultra-short body proximity sensor.

[0006] The technical solution adopted by the utility model to solve the technical problem is: an ultra-short body proximity sensor, comprising a shell component and a sensor base component, the shell component comprising a shell, a threaded ring, a stopper and a sleeve, the threaded ring is threadedly connected to the outer wall of the shell, the stopper is sleeved on the end of the shell, and a groove structure matching the outer wall of the threaded ring is opened on one side in the middle of the stopper, a group of the threaded rings are clamped in the middle groove of the stopper, and the sleeve is plugged into the end of the stopper;

[0007] The sensor base component includes a sensing shell, a circuit board, a pot-type ferrite and a connector, wherein the connector is slidably mounted on the inner wall of the shell, a slot structure matching the end of the circuit board is provided in the middle of the connector, one end of the circuit board is plugged in the middle of the connector, the sensing shell is encapsulated in the end of the shell, a through-hole structure matching the sensing shell is provided in the middle of the sleeve, the end of the sensing shell is located on the inner side of the sleeve, the pot-type ferrite is embedded in the inner side of the sensing shell, and an avoidance groove structure matching the side wall of the pot-type ferrite is provided at the other end of the circuit board.

[0008] The effects achieved by the above components are as follows: the housing component composed of a shell, a threaded ring, a stopper and a sleeve is used to install the sensor base component, wherein the shell is used to protect the sensor base component and maintain the stability of the position of the sensor base component, the threaded ring is installed on the outside of the shell, the shell is installed on a fixed foundation, and then tightening the threaded ring can cooperate with the fixed foundation to clamp the shell, thereby fixing the sensor base component, facilitating detection operations, increasing the connection between the stopper and the threaded ring outside the shell, can increase the contact area between the shell and the fixed foundation, improve the connection strength between the shell and the fixed foundation, and further stabilize the shell, in a smaller installation space, the stopper can be removed and replaced with a smaller threaded ring to cooperate with the installation of the shell component, and the sleeve The tube is used to seal the end of the shell and protect the sensing component at the end of the sensor base component. Before use, the sleeve needs to be removed. A sleeve with a through hole can also be used to detect a specific area. The sensor base component composed of a sensing shell, a circuit board, a pot-type ferrite and a connector is used to detect the target area, wherein the connector is used to assist the shell in installing the circuit board to prevent the circuit board from shaking inside the shell and reduce the impact of vibration generated during equipment operation on the circuit board. At the same time, it can prevent the circuit board from shifting inside the shell and affecting the sensing accuracy, and maintain the stability of the relative position of the circuit board, the sensing shell and the pot-type ferrite. The sensing shell, the circuit board and the pot-type ferrite are the sensing components of the sensor.

[0009] Preferably, a rubber sleeve is inserted into the rear end of the shell, a wire is inserted in the middle of the rubber sleeve, the end of the wire passes through the connector, and the wire is electrically connected to the circuit board.

[0010] The effect achieved by the above components is: adding a wire connected by a rubber sleeve at the rear of the shell to connect with the circuit board, supply power to the circuit board and exchange data. The rubber sleeve can limit the wire and maintain the stability of the wire position.

[0011] Preferably, the circuit board is a four-layer board wiring structure, and the components on the surface of the circuit board are composite integrated components.

[0012] The effects achieved by the above components are: the circuit board of composite integrated components can greatly reduce the space occupied by the circuit board, and the multi-level structure has a strong heat dissipation capacity, and the four-layer wiring structure increases the anti-interference ability of the circuit board and improves the application range of the sensor.

[0013] Preferably, the inner wall of the induction shell is provided with a raised edge structure, the middle of the end of the pot-shaped ferrite is provided with an opening structure matching the raised edge inside the induction shell, and the height of the inner edge strip of the induction shell is greater than the thickness of the pot-shaped ferrite.

[0014] The effects achieved by the above components are: adding a raised edge structure matching the groove at the end of the can-type ferrite to the inner wall of the sensing shell, facilitating the positioning of the can-type ferrite, increasing the connection area between the can-type ferrite and the sensing shell, ensuring that the can-type ferrite will not move in the sensing shell, and avoiding the sensing shell being moved to affect the sensing accuracy of the sensor.

[0015] Preferably, the inner side wall of the shell is provided with strip-shaped protrusion structures at equal intervals, and the side wall of the connecting member is provided with a groove structure matching the protrusions on the inner side of the shell.

[0016] The effects achieved by the above components are: adding a strip protrusion inside the shell to limit the connector, which can improve the docking accuracy between the connector and the shell, prevent the circuit board fixed by the connector from rotating inside the shell, maintain the stability of the position of the circuit board inside the shell, and the strip protrusion edge strip structure can improve the strength of the shell.

[0017] Preferably, the outer side wall of the stopper is a step structure, and the outer side wall of the stopper extends to the side wall of the shell.

[0018] The effects achieved by the above components are: the block of the step edge structure is convenient for docking with other installation bases, expanding the connection range between the sensor and the installation components, increasing the installation strength of the sensor structure, and maintaining the stability of the sensor position. In a smaller installation space, the block can be removed to reduce the space occupied by the sensor connection part to adapt to different usage requirements.

[0019] The beneficial effects of the utility model are:

[0020] In the utility model, a stopper is added to connect with a threaded ring outside the shell, which can increase the contact area between the shell and the fixed foundation, improve the connection strength between the shell and the fixed foundation, and further stabilize the shell. In a smaller installation space, the stopper can be removed and replaced with a smaller threaded ring to cooperate with the installation of shell components. The connecting piece is used to assist the shell in installing the circuit board, prevent the circuit board from shaking inside the shell, reduce the impact of vibration generated during equipment operation on the circuit board, and maintain the stability of the relative position of the circuit board, the induction shell, and the pot-type ferrite.

[0021] The circuit board of the composite integrated components in the utility model can greatly reduce the space occupied by the circuit board, and the multi-level structure has a strong heat dissipation capacity. The four-layer wiring structure increases the anti-interference ability of the circuit board and improves the application range of the sensor. Adding strip protrusions inside the shell to limit the connector can improve the docking accuracy between the connector and the shell, prevent the circuit board fixed by the connector from rotating inside the shell, and maintain the stability of the position of the circuit board inside the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is one of the three-dimensional structural schematic diagrams of the utility model;

[0023] Figure 2 This is the second schematic diagram of the three-dimensional structure of the utility model;

[0024] Figure 3 It is a side structural schematic diagram of the utility model;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the sensor base component of the utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the sensor base component of the utility model;

[0027] Figure 6 This is a schematic diagram of the circuit board layout of the utility model.

[0028] Legend: 100, outer shell component; 101, shell; 102, threaded ring; 103, stopper; 104, sleeve; 105, rubber sleeve; 106, wire; 200, sensor base component; 201, induction shell; 202, circuit board; 203, pot-type ferrite; 204, connector. DETAILED DESCRIPTION

[0029] The present invention will now be further described in detail in conjunction with the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0030] Reference Figure 1-6 As shown, the utility model provides a technical solution: an ultra-short body proximity sensor, comprising a shell component 100 and a sensor base component 200, wherein the shell component 100 comprises a shell 101, a threaded ring 102, a stopper 103 and a sleeve 104, wherein the threaded ring 102 is threadedly connected to the outer wall of the shell 101, the stopper 103 is sleeved at the end of the shell 101, and a groove structure matching the outer wall of the threaded ring 102 is opened on one side in the middle of the stopper 103, a group of the threaded ring 102 is clamped in the middle groove of the stopper 103, and the sleeve 104 is plugged into the end of the stopper 103;

[0031] The sensor base component 200 includes a sensing shell 201, a circuit board 202, a pot-type ferrite 203 and a connector 204. The connector 204 is slidably installed on the inner wall of the shell 101. A slot structure matching the end of the circuit board 202 is provided in the middle of the connector 204. One end of the circuit board 202 is plugged in the middle of the connector 204. The sensing shell 201 is encapsulated at the end of the shell 101. A through-hole structure matching the sensing shell 201 is provided in the middle of the sleeve 104. The end of the sensing shell 201 is located on the inner side of the sleeve 104. The pot-type ferrite 203 is embedded in the inner side of the sensing shell 201. The other end of the circuit board 202 is provided with an avoidance groove structure matching the side wall of the pot-type ferrite 203.

[0032] The effects achieved by the above components are as follows: the housing component 100 composed of the shell 101, the threaded ring 102, the stopper 103 and the sleeve 104 is used to install the sensor base component 200, wherein the shell 101 is used to protect the sensor base component 200 and maintain the stability of the position of the sensor base component 200, the threaded ring 102 is installed on the outside of the shell 101, the shell 101 is installed on a fixed foundation, and then tightening the threaded ring 102 can cooperate with the fixed foundation to clamp the shell 101, thereby fixing the sensor base component 200, which is convenient for detection operations, and adding the stopper 103 to connect with the threaded ring 102 outside the shell 101 can increase the contact area between the shell 101 and the fixed foundation, improve the connection strength between the shell 101 and the fixed foundation, and further stabilize the shell 101. In a smaller installation space, the stopper 103 can be removed and replaced with a smaller threaded ring 102 to cooperate with the installation of the shell 101 component. The tube 104 is used to seal the end of the shell 101 and protect the sensing component at the end of the sensor base component 200. Before use, the sleeve 104 needs to be removed. The sleeve 104 with a through hole can also be used to detect a specific area. The sensor base component 200 composed of the sensing shell 201, the circuit board 202, the pot-type ferrite 203 and the connector 204 is used to detect the target area, wherein the connector 204 is used to assist the shell 101 in installing the circuit board 202 to prevent the circuit board 202 from shaking inside the shell 101 and reduce the impact of vibration generated during equipment operation on the circuit board 202. At the same time, it can prevent the circuit board 202 from shifting inside the shell 101 to affect the sensing accuracy and maintain the stability of the relative position of the circuit board 202, the sensing shell 201 and the pot-type ferrite 203. The sensing shell 201, the circuit board 202 and the pot-type ferrite 203 are the sensing components of the sensor.

[0033] Reference Figure 1 and Figure 4As shown, in this embodiment: the rear of the housing 101 is plugged with a rubber sleeve 105, and a wire 106 is plugged in the middle of the rubber sleeve 105. The end of the wire 106 passes through the connector 204, and the wire 106 is electrically connected to the circuit board 202. Specifically, the wire 106 connected to the rubber sleeve 105 is added to the rear of the housing 101 for docking with the circuit board 202, supplying power to the circuit board 202 and exchanging data. The rubber sleeve 105 can limit the wire 106 to maintain the stability of the position of the wire 106.

[0034] Reference Figure 6 As shown, in this embodiment: the circuit board 202 is a four-layer board wiring structure, and the components on the surface of the circuit board 202 are composite integrated components. Specifically, the circuit board 202 with composite integrated components can greatly compress the occupied space of the circuit board 202, and the multi-level structure has a strong heat dissipation capability. The four-layer wiring structure increases the anti-interference ability of the circuit board 202 and improves the application range of the sensor.

[0035] Reference Figure 4 and Figure 5 As shown, in the present embodiment: the inner wall of the sensing shell 201 is provided with a raised edge structure, the middle of the end of the pot-type ferrite 203 is provided with an opening structure matching the raised edge inside the sensing shell 201, the height of the inner edge strip of the sensing shell 201 is greater than the thickness of the pot-type ferrite 203, specifically, a raised edge structure matching the groove at the end of the pot-type ferrite 203 is added to the inner wall of the sensing shell 201, so as to facilitate the positioning of the pot-type ferrite 203, increase the connection area between the pot-type ferrite 203 and the sensing shell 201, ensure that the pot-type ferrite 203 will not move in the sensing shell 201, and avoid the sensing shell 201 being calculated to affect the sensing accuracy of the sensor.

[0036] Reference Figure 5 As shown, in the present embodiment: the inner wall of the shell 101 is provided with strip-shaped protrusion structures at equal intervals, and the side wall of the connector 204 is provided with a groove structure matching the inner protrusions of the shell 101. Specifically, adding strip-shaped protrusions inside the shell 101 to limit the connector 204 can improve the docking accuracy between the connector 204 and the shell 101, prevent the circuit board 202 fixed by the connector 204 from rotating inside the shell 101, maintain the stability of the position of the circuit board 202 inside the shell 101, and the strip-shaped protrusion edge strip structure can improve the strength of the shell 101.

[0037] Reference Figure 1 and Figure 2As shown, in this embodiment: the outer wall of the block 103 is a step structure, and the outer wall of the block 103 extends to the side wall of the shell 101. Specifically, the block 103 with a step edge structure is convenient for docking with other installation bases, expanding the connection range between the sensor and the installation component, increasing the installation strength of the sensor structure, and maintaining the stability of the sensor position. In a smaller installation space, the block 103 can be removed to reduce the space occupied by the sensor connection part to adapt to different usage requirements.

[0038] In the description of the present utility model, 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 an indirect connection 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 utility model can be understood by specific circumstances;

[0039] The above description only describes the specific implementation methods of the utility model. Various examples do not limit the essential content of the utility model. Ordinary technicians in the relevant technical field can modify or deform the specific implementation methods described above after reading the description without departing from the essence and scope of the utility model.

Claims

1. An ultra-short proximity sensor, comprising a housing component (100) and a sensor base component (200), characterized in that: The housing component (100) comprises a shell (101), a threaded ring (102), a stopper (103) and a sleeve (104); the threaded ring (102) is threadedly connected to the outer wall of the shell (101); the stopper (103) is sleeved on the end of the shell (101); a groove structure matching the outer wall of the threaded ring (102) is provided on one middle side of the stopper (103); a group of the threaded rings (102) are clamped in the middle groove of the stopper (103); and the sleeve (104) is plugged into the end of the stopper (103); The sensor base component (200) comprises a sensing shell (201), a circuit board (202), a pot-type ferrite (203) and a connector (204); the connector (204) is slidably mounted on the inner side wall of the housing (101); a slot structure matching the end of the circuit board (202) is provided in the middle of the connecting piece (204); one end of the circuit board (202) is plugged into the middle of the connecting piece (204); the sensing shell (201) is encapsulated at the end of the housing (101); a through-hole structure matching the sensing shell (201) is provided in the middle of the sleeve (104); the end of the sensing shell (201) is located inside the sleeve (104); the pot-type ferrite (203) is embedded inside the sensing shell (201); and the other end of the circuit board (202) is provided with an avoidance groove structure matching the side wall of the pot-type ferrite (203).

2. The ultra-short proximity sensor according to claim 1, characterized in that: A rubber sleeve (105) is inserted into the rear end of the shell (101), a wire (106) is inserted into the middle of the rubber sleeve (105), an end of the wire (106) passes through the connecting piece (204), and the wire (106) is electrically connected to the circuit board (202).

3. The ultra-short proximity sensor according to claim 1, characterized in that: The circuit board (202) is a four-layer board wiring structure, and the components on the surface of the circuit board (202) are composite integrated components.

4. The ultra-short proximity sensor according to claim 1, characterized in that: The inner wall of the induction shell (201) is provided with a raised edge structure, the middle of the end of the pot-shaped ferrite (203) is provided with an opening structure matching the raised edge inside the induction shell (201), and the height of the inner edge strip of the induction shell (201) is greater than the thickness of the pot-shaped ferrite (203).

5. The ultra-short proximity sensor according to claim 1, characterized in that: The inner side wall of the shell (101) is provided with strip-shaped protrusion structures at equal intervals, and the side wall of the connecting piece (204) is provided with a groove structure matching the protrusions on the inner side of the shell (101).

6. The ultra-short proximity sensor according to claim 1, characterized in that: The outer wall of the stopper (103) is a step structure, and the outer wall of the stopper (103) extends to the side wall of the shell (101).

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