CN213071000U

CN213071000U - Anti-misoperation type magnetic sensitive switch with single pair of magnetic poles

Info

Publication number: CN213071000U
Application number: CN202021905801.XU
Authority: CN
Inventors: 丁训刚
Original assignee: Hangzhou Liugan Technology Co ltd
Current assignee: Hangzhou Liugan Technology Co ltd
Priority date: 2020-09-03
Filing date: 2020-09-03
Publication date: 2021-04-27
Anticipated expiration: 2030-09-03

Abstract

The utility model discloses a prevent malfunction type magnetic-sensitive switch with single to magnetic pole, including controller, hall element and magnet, the controller is connected with the hall element electricity, hall element sets up and relative motion with the magnet separation, be equipped with a pair of NS magnetic pole on the magnet, work as magnet and hall element are close to twice at least in succession mutually, the hall element produces twice at least pulse signal and transmits for thereby the controller intercommunication or disconnect switch, overall structure is simple, and low cost can correctly judge the position of magnet, avoids opening and close because of the mistake that the malfunction produced the switch to the normal operating of device has been guaranteed.

Description

Anti-misoperation type magnetic sensitive switch with single pair of magnetic poles

[ technical field ] A method for producing a semiconductor device

The utility model relates to a magnetic sensitive switch's technical field, especially a prevent technical field of malfunction type magnetic sensitive switch with single to magnetic pole.

[ background of the invention ]

The hall effect is one of the electromagnetic effects, which was discovered by the american physicist hall in 1879 when studying the conduction mechanism of metals. When a current passes through the semiconductor perpendicular to an external magnetic field, carriers are deflected, and an additional electric field is generated perpendicular to the direction of the current and the magnetic field, so that a potential difference is generated between two ends of the semiconductor, namely the hall effect, and the potential difference is also called as a hall potential difference. The hall element is a magnetic sensor based on the hall effect.

As shown in fig. 1 and 2, when the conventional magnetic sensitive switch operates, when the magnet 3 having a pair of NS magnetic poles is gradually close to the hall element 2, the hall element 2 generates a hall effect to change the state of the internal circuit of the switch, thereby generating a primary pulse signal, and thus recognizing that a magnetic object exists nearby and transmitting the magnetic object to the controller 1, and the controller 1 controls on or off of the switch. However, in actual operation, the conventional magnetic-sensing switch often makes a judgment error due to a malfunction, so that the switch is turned on and off incorrectly, and the normal operation of the device is further affected, and a solution is needed urgently.

[ Utility model ] content

The utility model aims at solving the problem among the prior art, providing a prevent malfunction type magnetic sensitive switch with single to the magnetic pole, can correctly judge the position of magnet, avoid opening and close because of the mistake that the malfunction produced the switch.

In order to achieve the above object, the utility model provides a prevent malfunction type magnetic sensitive switch with single pair of magnetic pole, including controller, hall element and magnet, the controller is connected with the hall element electricity, hall element sets up and relative motion with the magnet separation, be equipped with a pair of NS magnetic pole on the magnet, work as magnet and hall element are close to twice at least mutually, thereby the hall element produces twice at least pulse signal and transmits for thereby the controller communicates or disconnect switch.

Preferably, the hall element is stationary, and the magnet is fixed to the workpiece and is moved toward or away from the hall element.

Preferably, when the magnet is continuously close to the hall element, the number of times of the pulse signal generated by the hall element is equal to the number of times of the magnet being close to the hall element.

Preferably, the magnet is located on the left side of the hall element, the N magnetic pole and the S magnetic pole of the pair of NS magnetic poles on the magnet are sequentially arranged along the horizontal direction, and the magnet is driven by the workpiece to move horizontally left and right.

Preferably, the magnet and the hall element are located at the same height.

Preferably, the magnet is a permanent magnet or an electromagnet.

The utility model has the advantages that: the utility model discloses a set up a pair of NS magnetic pole on the magnet, work as magnet and hall element are close to twice at least mutually in succession, thereby hall element produces twice at least pulse signal and transmits for intercommunication or disconnect-switch of controller, and overall structure is simple, and low cost can correctly judge the position of magnet, avoids opening and close because of the mistake that the malfunction produced the switch to the normal operating of device has been guaranteed.

The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.

[ description of the drawings ]

FIG. 1 is a schematic diagram of a conventional magnetic sensitive switch;

FIG. 2 is a schematic diagram of a pulse signal of a conventional magnetic-sensing switch;

fig. 3 is a schematic structural view of an anti-malfunction magnetic sensitive switch with a single pair of magnetic poles according to the present invention;

fig. 4 is a schematic diagram of the pulse signal of the anti-malfunction magnetic sensitive switch with a single pair of magnetic poles of the present invention.

In the figure: 1-controller, 2-Hall element, 3-magnet.

[ detailed description ] embodiments

Referring to fig. 3 and 4, the utility model relates to a prevent malfunction type magnetic sensitive switch with single pair of magnetic pole, including controller 1, hall element 2 and magnet 3, controller 1 is connected with hall element 2 electricity, hall element 2 sets up and relative motion with 3 separation of magnet, be equipped with a pair of NS magnetic pole on the magnet 3, work as magnet 3 is close to at least twice with hall element 2 continuous phase, thereby hall element 2 produces at least twice pulse signal and transmits for controller 1 intercommunication or disconnect-switch.

The hall element 2 is stationary and the magnet 3 is fixed to the workpiece and is driven so as to be close to or away from the hall element 2.

When the magnet 3 continuously approaches the hall element 2, the number of times of the pulse signal generated by the hall element 2 is the same as the number of times of the approach of the magnet 3 to the hall element 2.

The magnet 3 is positioned on the left side of the Hall element 2, the N magnetic pole and the S magnetic pole in a pair of NS magnetic poles on the magnet 3 are sequentially arranged along the horizontal direction, and the magnet 3 is driven by a workpiece to horizontally move left and right.

The magnet 3 is located at the same height as the hall element 2.

The magnet 3 is a permanent magnet or an electromagnet.

The utility model discloses the working process:

taking the number of times that the magnet 3 continuously approaches the hall element 2 every time as two times as an example, in the working process, the magnet 3 is driven by the workpiece to continuously move horizontally left and right, when the magnet 3 continuously approaches the hall element 2, the hall element 2 generates a pulse signal every time the magnet 3 approaches the hall element 2, and when the pulse signal is continuously generated twice, the controller 1 is connected or disconnected with the switch.

The utility model discloses a set up a pair of NS magnetic pole on the magnet, work as magnet and hall element are close to twice at least mutually in succession, thereby hall element produces twice at least pulse signal and transmits for intercommunication or disconnect-switch of controller, and overall structure is simple, and low cost can correctly judge the position of magnet, avoids opening and close because of the mistake that the malfunction produced the switch to the normal operating of device has been guaranteed.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.

Claims

1. The utility model provides a prevent malfunction type magnetic-sensitive switch with single pair of magnetic pole which characterized in that: including controller (1), hall element (2) and magnet (3), controller (1) is connected with hall element (2) electricity, hall element (2) and magnet (3) separation setting and relative motion, be equipped with a pair of NS magnetic pole on magnet (3), work as magnet (3) and hall element (2) are close to twice at least with continuous mutually, hall element (2) produce pulse signal twice at least and transmit for thereby controller (1) intercommunication or disconnect switch.

2. A malfunction prevention type magnetic sensitive switch with a single pair of magnetic poles as claimed in claim 1, characterized in that: the Hall element (2) is stationary, and the magnet (3) is fixed on the workpiece and is driven to approach or depart from the Hall element (2).

3. A malfunction prevention type magnetic sensitive switch with a single pair of magnetic poles as claimed in claim 2, characterized in that: when the magnet (3) is continuously close to the Hall element (2), the frequency of the pulse signal generated by the Hall element (2) is consistent with the frequency of the magnet (3) close to the Hall element (2).

4. A malfunction prevention type magnetic sensitive switch with a single pair of magnetic poles as claimed in claim 3, characterized in that: magnet (3) are located the left side of hall element (2), the N magnetic pole and the S magnetic pole in a pair of NS magnetic pole on magnet (3) are arranged along the horizontal direction in proper order, magnet (3) are driven by the work piece and the horizontal side-to-side motion.

5. The magnetic switch of claim 4, wherein the magnetic switch comprises a single pair of magnetic poles, and the magnetic switch further comprises: the magnet (3) and the Hall element (2) are positioned at the same height.

6. A malfunction prevention type magnetic sensitive switch with a single pair of magnetic poles as claimed in claim 1, characterized in that: the magnet (3) is a permanent magnet or an electromagnet.