Door switch sensor assembly

Abstract

The utility model provides a door switch sensor assembly which comprises a sensor body and a magnetic induction block which are separately arranged and used in cooperation, the sensor body is provided with an outer shell, an installation cavity is formed in the outer shell, and a stuffing box communicated with the installation cavity in the outer shell is arranged outside one side of the outer shell. A preformed hole is formed in one side wall of the outer shell, and the preformed hole is plugged through a plug; a circuit board and a Hall sensor are arranged in an installation cavity in the outer shell, the Hall sensor and the circuit board are arranged side by side, and the Hall sensor is electrically connected with the circuit board. According to the utility model, the sensor main body and the magnetic induction block are respectively and correspondingly arranged on the door frame and the door body, and the state of opening and closing the door is sensitively judged based on the induction change of the Hall sensor to the magnetic field, so that compared with the traditional door switch, the accuracy of judging the opening of the door is improved; and the performance is not greatly influenced even if the cable is used for a long time.

Description

Technical Field

[0001] This utility model relates to the field of door switch technology, specifically, it demonstrates a door switch sensor assembly. Background Technology

[0002] With the continuous advancement of technology and the development of security technology, access control and security management systems have become an effective measure to solve the problem of door access security management. Access control and security management systems include door open / close detection.

[0003] Currently, commonly used door switch status detection devices mainly rely on mechanical microswitches. For example, Chinese patent CN213366418U discloses a door switch and electrical appliance, including a base that defines the external dimensions of the door switch and has a cavity; a microswitch disposed within the cavity of the base and having a contact; and an actuator with a rotating shaft, which is rotatably disposed within the cavity of the base via the rotating shaft. The microswitch is opened and closed primarily through the rotation of the actuator.

[0004] However, microswitches are mechanical switches with tiny contact intervals and quick-acting mechanisms. They rely on external mechanical force to act on the actuating spring through a transmission component, causing the fixed contact at the end to quickly connect or disconnect with the moving contact. However, the actuating spring is prone to deformation and damage, and the fixed and moving contacts are prone to wear. Under long-term use conditions, microswitches are very likely to be damaged, leading to the failure of door switch status detection and seriously affecting the accuracy of door switch status detection. Utility Model Content

[0005] The purpose of this invention is to provide a door switch sensor assembly that is simple in structure, compact in size, and highly reliable.

[0006] The technical solution is as follows:

[0007] A door switch sensor assembly includes a sensor body and a magnetic induction block that are separately arranged and used in conjunction. The sensor body has a housing with an internal mounting cavity. A stuffing box communicating with the internal mounting cavity is provided on one side of the housing. A reserved hole is provided on one side wall of the housing and is sealed by a plug. A circuit board and a Hall sensor are arranged in the internal mounting cavity of the housing. The Hall sensor and the circuit board are arranged side by side and are electrically connected.

[0008] Further, the outer shell is a cuboid structure, the outer shell includes a top cover and a base, the base is hollow inside and its top end is open, the top cover is fixedly installed between the top end of the base by four screws. The outer shell is made of plastic material, and the outer shell is designed as a split type instead of an integral type. The advantages of split type assembly are that the convenience of installing the internal devices of the outer shell can be improved, the outer shell can be disassembled, and the installation and maintenance are facilitated.

[0009] Further, the top end of the base is inwardly recessed to form a clamping groove, and a shielding sealing strip is embedded in the clamping groove, and the shielding sealing strip is pressed between the top cover and the base. By adding the shielding sealing strip, the outer shell has good sealing performance, can effectively resist electromagnetic interference, and ensures the stable operation of the internal devices of the outer shell, especially the Hall sensor.

[0010] Further, the circuit board is arranged on the bottom surface in the base through two first mounting columns, and the Hall sensor is arranged on the bottom surface in the base through a second mounting column. The circuit board and the Hall sensor can be stably installed on the bottom surface in the outer shell.

[0011] Further, two ears are symmetrically formed on the lower part of the outer shell, and mounting waist holes are formed on the surfaces of the ears. In this way, screws can be screwed into the mounting waist holes on the ears of the outer shell to quickly install the sensor body on the door frame.

[0012] Further, inwardly recessed grooves are symmetrically formed on both sides of the magnetic induction block, and mounting screw holes are formed at the bottom end of the grooves. In this way, screws can be screwed into the mounting screw holes in the grooves on both sides of the magnetic induction block to quickly install the magnetic induction block on the door body.

[0013] Further, a logo plate is fixedly installed on the top surface of the outer shell and the top surface of the magnetic induction block by a plurality of rivets. In this way, the logo plate can provide information such as trademarks, brands, product parameters on the sensor body and the magnetic induction block, which helps users to correctly use and trace the product, and also helps users to identify and distinguish the product.

[0014] Compared with the prior art, the door switch sensor assembly has the advantages that the structure is simple, the installation and use are convenient, the power consumption is low, and the efficiency is high; the sensor main body and the magnetic induction block are separately arranged and cooperatively used, the sensor main body and the magnetic induction block are respectively installed on the door frame and the door body, when the door body is in the closed position, the magnetic induction block is close to the sensor main body, at this time, the Hall sensor in the sensor main body is affected by the magnetic field to generate a Hall voltage, so that the detection of the magnetic field is realized, and then it is judged that the door is in the closed state; when the door body is in the open position, the magnetic induction block is away from the sensor main body, at this time, the Hall sensor in the sensor main body cannot detect the magnetic field, and then it is judged that the door is in the open state; compared with the traditional door switch, the door switch sensor assembly improves the accuracy of the door opening judgment, and even after long time use, the performance is not greatly affected. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a whole schematic view of a door switch sensor assembly according to an embodiment of the present application;

[0016] Figure 2 is an exploded schematic view of a sensor main body according to an embodiment of the present application;

[0017] Corresponding marks in the drawings: 1-sensor main body, 2-magnetic induction block, 3-stuffing box, 4-plug, 11-base, 12-top cover, 13-circuit board, 14-Hall sensor, 15(23)-marking nameplate, 21-groove, 22-mounting screw hole, 111-reserved hole, 112-shielding sealing strip, 113-ear, 114-mounting waist hole, 115-clamping groove, 116-first mounting column, 117-second mounting column. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application

[0019] The embodiment of the present application provides a door switch sensor assembly, which is used to solve the technical problems in the background art.

[0020] Please refer to Figure 1 、 Figure 2 as shown. Specifically, the sensor main body 1 and the magnetic induction block 2 are separately arranged and cooperatively used, the sensor main body is usually installed on the door frame, and the magnetic induction block is installed on the door body.

[0021] The sensor body 1 has an outer shell, an installation cavity is formed in the outer shell, a circuit board 13 and a Hall sensor 14 are arranged in the installation cavity in the outer shell respectively, the Hall sensor 14 is arranged side by side with the circuit board 13, and the Hall sensor 14 is electrically connected with the circuit board 13, a filler funnel 3 is arranged on one side of the outer shell and communicates with the installation cavity in the outer shell, the filler funnel is a standard part, the sealing effect of wiring between the circuit board in the outer shell and the external wire can be ensured by the arranged filler funnel, the stability is increased, a reserved hole 111 is formed in one of the side walls of the outer shell, the reserved hole 111 is plugged by a plug 4, if the user has a use requirement, the plug can be removed and other joints can be additionally arranged at the reserved hole position, if the user does not have the corresponding use requirement, the reserved hole can be plugged by the plug, and the use requirements of different users are met.

[0022] The working mode is simple: the sensor body and the magnetic induction block are respectively arranged on the door frame and the door body, when the door body is in the closed position, the magnetic induction block approaches the sensor body, at this time, the Hall sensor in the sensor body is affected by the magnetic field to generate a Hall voltage, thereby realizing the detection of the magnetic field, and further judging that the door is in the closed state; when the door body is in the open position, the magnetic induction block is away from the sensor body, at this time, the Hall sensor in the sensor body cannot detect the magnetic field, thereby judging that the door is in the open state.

[0023] The outer shell is a cuboid structure, and the outer shell comprises a top cover 12 and a base 11. The base 11 is hollow inside and has an open top end, and the top cover 12 is fixedly installed between the top end of the base 11 by four screws. The outer shell is made of plastic material. The outer shell is not designed as an integral type but as a split type, which has the advantages of improving the convenience of installing the devices inside the outer shell and facilitating disassembly, installation and maintenance.

[0024] Based on the above scheme, the top end of the base 11 is recessed inward to form a clamping groove 115, and a shielding sealing strip 112 is embedded in the clamping groove 115 and is pressed between the top cover 12 and the base 11. The shielding sealing strip improves the sealing performance of the outer shell and effectively resists electromagnetic interference, ensuring the stable operation of the devices inside the outer shell, especially the Hall sensor.

[0025] Based on the above scheme, the circuit board 13 is arranged on the bottom surface in the base 11 through two first mounting columns 116, and the Hall sensor 14 is arranged on the bottom surface in the base 11 through a second mounting column 117. The circuit board and the Hall sensor can be stably installed on the bottom surface in the outer shell.

[0026] The lower part of the outer shell is symmetrically extended outwardly to form two ears 113, and mounting holes 114 are formed on the surface of the ears 113.

[0027] Correspondingly, the magnetic induction block 2 is symmetrically formed with inwardly recessed grooves 21 on both sides, and mounting screw holes 22 are formed at the bottom end of the grooves 21. In this way, screws can be screwed into the mounting screw holes in the grooves on both sides of the magnetic induction block to quickly mount the magnetic induction block on the door body.

[0028] In addition, a logo plate 15 (23) is fixedly mounted on the top surface of the outer shell and the top surface of the magnetic induction block by a plurality of rivets. In this way, the sensor body and the magnetic induction block can provide information such as trademarks, brands, and product parameters through the logo plate, which helps users to correctly use and trace the product, and also helps users to identify and distinguish the product.

[0029] The above only describes some embodiments of the present application. For those skilled in the art, without departing from the inventive concept, a number of modifications and improvements can be made, which are all within the scope of protection of the present application.

Claims

1. A door switch sensor assembly, characterized by, The utility model relates to a sensor main body and magnetic induction block which are separately arranged and used in cooperation, the sensor main body has an outer shell, a mounting cavity is formed in the inside of the outer shell, a filler funnel is arranged on one side of the outer shell and communicates with the mounting cavity in the inside of the outer shell, a reserved hole is formed in one side wall of the outer shell and is blocked by a plug; a circuit board and a hall sensor are arranged in the mounting cavity in the inside of the outer shell, the hall sensor is arranged side by side with the circuit board and is electrically connected between the hall sensor and the circuit board.

2. A door switch sensor assembly according to claim 1, wherein, The outer shell is a cuboid structure, the outer shell comprises a top cover and a base, the base is hollow in the inside and the top end of the base is open, the top cover is fixedly installed between the top end of the base through four screws.

3. A door switch sensor assembly according to claim 2, wherein, The top end of the base is inwardly recessed to form a clamping groove, a shielding sealing strip is embedded in the clamping groove, and the shielding sealing strip is press-fitted between the top cover and the base.

4. A door switch sensor assembly according to claim 2, wherein, The circuit board is arranged on the bottom surface in the base through two first mounting columns, and the hall sensor is arranged on the bottom surface in the base through a second mounting column.

5. A door switch sensor assembly according to claim 1, wherein, Two ears are horizontally extended outward on the lower part of the outer shell, and waist holes are formed on the surfaces of the ears.

6. A door switch sensor assembly according to claim 5, wherein, Two inwardly recessed grooves are symmetrically formed on the two sides of the magnetic induction block, and mounting screw holes are formed at the bottom ends of the grooves.

7. A door switch sensor assembly according to claim 1, wherein, A logo nameplate is fixedly installed on the top surface of the outer shell and the top surface of the magnetic induction block through rivets.

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