CN216487852U

CN216487852U - Matrix arrangement reed pipe magnetic control switch

Info

Publication number: CN216487852U
Application number: CN202123050884.6U
Authority: CN
Inventors: 严剑锋
Original assignee: Ningbo Yunbao Electric Appliance Co ltd
Current assignee: Ningbo Yunbao Electric Appliance Co ltd
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-05-10
Anticipated expiration: 2031-12-07

Abstract

The utility model relates to a reed pipe magnetic control switch of matrix arrangement, its characterized in that: at least comprises 3 reed pipe magnetic control switch units: s1, S2 and S3, S1 is used for changing signals of the switch, and S2 and S3 are used for eliminating interference caused by strong magnetism. The utility model discloses switch waterproof construction is simple to long service life also is difficult for receiving strong magnetic interference of external environment then the malfunction.

Description

Matrix arrangement reed pipe magnetic control switch

Technical Field

The utility model relates to a switch especially relates to a reed pipe magnetic control switch of matrix arrangement.

Background

The conventional switch has a complicated waterproof structure in product design, and needs a soft material structure and a hard material structure; the water resistance rating decreases as the soft material wears and ages.

In addition, the hall switch can increase the quiescent current, and can malfunction under the strong magnetic interference of the external environment.

SUMMERY OF THE UTILITY MODEL

The utility model designs a reed pipe magnetic control switch with matrix arrangement, which solves the technical problem that the conventional switch has a complicated waterproof structure in product design and needs a structure of soft material and hard material; the water resistance rating decreases as the soft material wears and ages.

In order to solve the technical problem existing in the above, the utility model discloses a following scheme:

a reed pipe magnetic control switch with matrix arrangement at least comprises 3 reed pipe magnetic control switch units: s1, S2 and S3, S1 is used for changing signals of the switch, and S2 and S3 are used for eliminating interference caused by strong magnetism.

Preferably, S2 and S3 are 1/2 where the S1 reed tube requires a closing action magnetic flux.

Preferably, one end of the S1 is grounded, the other end of the S1 is connected with first parallel ends of the S2 and the S3, the first parallel ends of the S2 and the S3 are also connected with a single chip microcomputer control switch end MCU SW ON/OFF, second parallel ends of the S2 and the S3 are connected with a power supply, and the first parallel ends of the S2 and the S3 and the second parallel ends of the S2 and the S3 are also connected with a pull-up resistor R2.

Preferably, a current-limiting resistor R1 is connected between the first parallel ends of S2 and S3 and S1.

Preferably, a current limiting resistor R4 is connected between the second parallel ends of S2 and S3 and the MCU control switch end MCU SW ON/OFF.

Preferably, the power-off state: s1, S2 and S3 are not influenced by magnetic materials, and are all in a normally open state; the ON/OFF of the MCU SW at the switch end controlled by the singlechip is detected as high level, and no switch change signal is considered.

Preferably, the power-on state: a magnetic column with magnetic flux just meeting the requirement of S1 is aligned with the central point of S1 to match the program control of the reed pipe action; the magnetic column is embedded in the switch key; when the switch is pressed or pushed, the magnetic column is overlapped with the center of the S1 reed pipe; s1 is changed from normal open to normal close; the ON/OFF of the MCU SW at the switch end controlled by the singlechip is detected as low level and can be regarded as a switch change signal.

Preferably, the interference state 1: when strong magnetic radiation is radiated to S1 and S3, S3 is closed earlier than S1 when interference of a strong magnetic signal comes because the magnetic flux required for the action of S3 is half that of S1; at this time, the ON/OFF of the switch end MCU SW controlled by the single chip microcomputer is detected as high level, and no switch change signal is considered.

Preferably, interference state 2: when strong magnetic radiation is radiated to S1 and S2, S2 is closed earlier than S1 when interference of a strong magnetic signal comes because the magnetic flux required for the action of S2 is half that of S1; at this time, the ON/OFF of the switch end MCU SW controlled by the single chip microcomputer is detected as high level, and no switch change signal is considered.

Preferably, interference state 3: when strong magnetic radiation is radiated to S1, S2 and S3, since S2 and S3 need half of magnetic flux of S1 to act, S2 and S3 are closed earlier than S1 when the strong magnetic signal interference comes; at this time, the ON/OFF of the switch end MCU SW controlled by the single chip microcomputer is detected as high level, and no switch change signal is considered.

The reed switch with the matrix arrangement has the following beneficial effects:

the utility model discloses switch waterproof construction is simple to long service life also is difficult for receiving strong magnetic interference of external environment then the malfunction.

Drawings

FIG. 1: the utility model discloses a schematic diagram of the arrangement mode of the reed switch magnetic control switches arranged in a matrix;

FIG. 2: the utility model discloses a schematic design diagram of a matrix arrangement reed switch magnetic control switch circuit;

FIG. 3: the utility model discloses a starting state schematic diagram of a matrix arrangement reed switch magnetic control switch;

FIG. 4: the utility model discloses a schematic diagram of a matrix arrangement reed switch magnetic control switch interference state 1;

FIG. 5: the utility model discloses a schematic diagram of a disturbance state 2 of a matrix arrangement reed switch magnetic control switch;

FIG. 6: the utility model discloses a 3 schematic diagrams of matrix arrangement reed pipe magnetic control switch interference state.

Detailed Description

The present invention will be further explained with reference to fig. 1 to 6:

as shown in fig. 1, S2 and S3 are 1/2 of the S1 reed tube that requires closing action magnetic flux; for example: s1 requires 50Gs, S2 and S3 are 25 Gs; such a design is to always keep S2 and S3 more sensitive than S1. The S2 and S3 switches close faster when the magnetic materials are close. S1 is used for changing the signal of the switch, and S2 and S3 are used for eliminating the interference caused by strong magnetism.

As shown in fig. 2, after the reed pipes arranged in the matrix satisfy the above characteristics, the circuit is designed as follows:

one end of S1 is grounded, the other end of S1 is connected with the first parallel ends of S2 and S3, the first parallel ends of S2 and S3 are also connected with the MCU SW ON/OFF of the single chip microcomputer control switch end, the second parallel ends of S2 and S3 are connected with the power supply, and the first parallel ends of S2 and S3 and the second parallel ends of S2 and S3 are also connected with a pull-up resistor R2. And a current-limiting resistor R1 is connected between the first parallel ends of S2 and S3 and S1. And a current limiting resistor R4 is connected between the second parallel ends of the S2 and the S3 and the MCU SW ON/OFF control switch end.

The above switches are in 5 states with the magnetic material:

as shown in fig. 1, the power-off state: s1, S2 and S3 are not influenced by magnetic materials, and are all in a normally open state; the ON/OFF of the MCU SW at the switch end controlled by the singlechip is detected as high level, and no switch change signal is considered.

FIG. 3 shows the power-on state: a magnetic column with magnetic flux just meeting the requirement of S1 is aligned with the central point of S1 to match the program control of the reed pipe action; the magnetic column is embedded in the switch key; when the switch is pressed or pushed, the magnetic column is overlapped with the center of the S1 reed tube. S1 is changed from normal open to normal close; the ON/OFF of the MCU SW at the switch end controlled by the singlechip is detected as low level and can be regarded as a switch change signal.

As shown in fig. 4, interference state 1: when strong magnetic radiation is emitted to S1 and S3, S3 closes earlier than S1 when the strong magnetic signal interference comes because S3 needs half of the magnetic flux of S1. At this time, the ON/OFF of the switch end MCU SW controlled by the single chip microcomputer is detected as high level, and no switch change signal is considered.

Fig. 5 shows interference state 2: when strong magnetic radiation is emitted to S1 and S2, S2 closes earlier than S1 when the strong magnetic signal interference comes because S2 needs half of the magnetic flux of S1. At this time, the ON/OFF of the switch end MCU SW controlled by the single chip microcomputer is detected as high level, and no switch change signal is considered.

As shown in fig. 6, interference state 3: when strong magnetic radiation is radiated to S1, S2, and S3, since S2 and S3 require half of the magnetic flux of S1, S2 and S3 close earlier than S1 when a strong magnetic signal interference comes. At this time, the ON/OFF of the switch end MCU SW controlled by the single chip microcomputer is detected as high level, and no switch change signal is considered.

The present invention has been described in detail with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and various improvements of the method concept and the technical solution of the present invention can be made without modification, or the present invention can be directly applied to other occasions without modification, and is within the protection scope of the present invention.

Claims

1. A reed pipe magnetic control switch with matrix arrangement is characterized in that: at least comprises 3 reed pipe magnetic control switch units: s1, S2 and S3, wherein S1 is used for changing signals of the switch, and S2 and S3 are used for eliminating interference caused by strong magnetism; one end of S1 is grounded, the other end of S1 is connected with the first parallel ends of S2 and S3, the first parallel ends of S2 and S3 are also connected with the MCU SW ON/OFF of the single chip microcomputer control switch end, the second parallel ends of S2 and S3 are connected with the power supply, and the first parallel ends of S2 and S3 and the second parallel ends of S2 and S3 are also connected with a pull-up resistor R2.

2. The matrix arrangement reed switch of claim 1, wherein: s2 and S3 are 1/2 where the S1 reed tube requires a closing action magnetic flux.

3. The matrix arrangement reed switch of claim 1, wherein: and a current-limiting resistor R1 is connected between the first parallel ends of S2 and S3 and S1.

4. The matrix arrangement reed switch of claim 3, wherein: and a current limiting resistor R4 is connected between the first parallel ends of the S2 and the S3 and the MCU SW ON/OFF control switch end.