CN213750805U

CN213750805U - Alignment mechanism

Info

Publication number: CN213750805U
Application number: CN202023289424.4U
Authority: CN
Inventors: 李悦
Original assignee: Shenzhen Weiye Technology Co ltd
Current assignee: Shenzhen Weiye Technology Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-07-20
Anticipated expiration: 2030-12-30

Abstract

The utility model relates to a magnetism adsorbs the knob field, discloses an alignment mechanism for make the signal magnet and the sensor (2) alignment of magnetism adsorb the knob, alignment mechanism includes: a circuit substrate (1) carrying the sensor (2); and a bracket (5) fixed on the circuit substrate (1) at the sensor (2) and used for installing a positioning magnet (3); the positioning magnet (3) is used for being matched with an adsorption magnet in the knob body to adsorb the knob body on the surface of the panel. The alignment mechanism can realize accurate alignment of the signal magnet and the sensor, and simplifies the installation operation of the magnetic adsorption knob.

Description

Alignment mechanism

Technical Field

The utility model relates to a magnetism adsorbs the knob, specifically is an alignment mechanism.

Background

Compare mechanical type knob, magnetism adsorbs the knob and need not trompil on the panel, has realized the complete isolation of operating knob and the inside main control circuit board of equipment, has advantages such as waterproof, dustproof, grease proofing dirt, the security is good, the equipment is easy clean, and can give the bigger intention space of equipment appearance designer.

The magnetic adsorption knob comprises a knob body, a positioning magnet and an angular displacement sensor, wherein the knob body is internally provided with a signal magnet used for providing a changed north-south magnetic field signal for the angular displacement sensor, and the knob body is also internally provided with an adsorption magnet matched with the positioning magnet and used for adsorbing the knob body on the surface of a panel. At present, when the magnetic adsorption knob is installed, the positioning magnet is usually installed on the back of the panel in an adhesion mode, a bracket mode or an embedded mode, and the sensor is supported on the back side of the panel by a circuit substrate. When the circuit substrate is installed with deviation, or when the positioning magnet is installed with deviation, the signal detected by the sensor is weakened, even the angular displacement data of the knob body can not be accurately detected, so that the knob function can not be realized.

Therefore, it is necessary to design an alignment mechanism.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an alignment mechanism to solve the above-mentioned technical problem that this type of magnetism adsorbs the knob to exist.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an alignment mechanism for aligning a signal magnet of a magnetic attachment knob with a sensor, the alignment mechanism comprising:

a circuit substrate carrying the sensor; and

the bracket is fixed on the circuit substrate at the position of the sensor and used for mounting a positioning magnet;

the positioning magnet is used for being matched with an adsorption magnet in the knob body to adsorb the knob body on the surface of the panel.

Preferably, the bracket comprises:

a first positioning portion for positioning the positioning magnet; and

and a second positioning portion for positioning the cogging-feeling generating magnet.

Preferably, the bracket includes an annular magnet accommodating chamber, an inner ring portion of the magnet accommodating chamber constitutes the first positioning portion, and an outer ring portion of the magnet accommodating chamber constitutes the second positioning portion.

Preferably, the sensor comprises:

a first sensor for detecting angular displacement of the knob body; and

and the second sensor is used for detecting whether the knob body leaves the knob position or not.

In some aspects, the first sensor and the second sensor are the same chip.

In other aspects, the first sensor and the second sensor are two chips independent of each other.

Preferably, a magnet accommodating chamber of the bracket for mounting the positioning magnet is provided at the center of an end of the bracket.

Compared with the prior art, the utility model discloses following beneficial effect has at least:

the alignment mechanism can realize accurate alignment of the signal magnet and the sensor, and simplifies the installation operation of the magnetic adsorption knob.

Drawings

FIG. 1 is a schematic structural view of an alignment mechanism according to a first embodiment;

FIG. 2 is a sectional view thereof;

FIG. 3 is a schematic view of a usage state;

FIG. 4 is a schematic cross-sectional view of an alignment mechanism of the second embodiment;

FIG. 5 is a schematic view showing a state of use of the second embodiment;

reference numerals: 1. a circuit substrate; 2. a sensor; 3. positioning a magnet; 4. a cogging generating magnet; 5. a support; 51. a second positioning portion; 52. a first positioning portion; 100. a panel; 101. a screw; 200. a knob body; 201. an adsorption magnet; 202. a signal magnet.

Detailed Description

The alignment mechanism is used to align the signal magnet of the magnetic attachment knob with the sensor. The magnetic adsorption knob aims to solve the technical problems that an existing magnetic adsorption knob is inconvenient to install and installation deviation is easy to occur. The present invention will be further explained with reference to the drawings and examples.

The first embodiment:

referring to fig. 1 to 3, the alignment mechanism includes: a circuit board 1 carrying the sensor 2; and a bracket 5 fixed on the circuit substrate 1 at the sensor 2 for mounting a positioning magnet 3; the positioning magnet 3 is used for matching with the adsorption magnet 201 in the knob body 200, and the knob body 200 is adsorbed on the surface of the panel 100 by the principle of opposite attraction.

The sensor 2 may be mounted on the front surface of the circuit board 1 or may be mounted on the back surface of the circuit board 1. The sensor 2 detects the angular displacement of the knob body 200 by sensing the varying north-south magnetic field generated by the signal magnet 202. The bracket 5 is preferably a plastic bracket, and the bracket 5 can be fixed to the circuit substrate 1 by clamping, screwing, gluing or other mounting methods.

Further the holder 5 comprises: a first positioning portion 52 for positioning the positioning magnet 3; and a second positioning portion 51 for positioning the cogging-feeling generating magnet 4. Thus, the magnetic adsorption knob can be used for generating rotary pause and pause feeling, and the pause and pause feeling generation magnet 4 can be conveniently installed and positioned.

Further, the holder 5 includes an annular magnet housing chamber, an inner ring portion of the magnet housing chamber constitutes the first positioning portion 52, and an outer ring portion of the magnet housing chamber constitutes the second positioning portion 51. The structure can realize the installation and the positioning of the positioning magnet 3 and the pause-stop-feel generating magnet 4 only by forming an annular groove on the support 5, and has the characteristics of simple support structure, easy processing and the like.

Further the sensor 2 comprises: a first sensor for detecting an angular displacement of the knob body 200; and a second sensor for detecting whether the knob body 200 is separated from the knob position. The first sensor is an angular displacement sensor, and the angular displacement data signal of the knob body 200 is obtained by detecting the changed north-south magnetic field generated by the signal magnet 202, so that the function of the knob is realized. The second sensor is arranged so that the switch signal can be formed by the removing/returning operation of the knob body 200, and the principle is that when the knob body 200 is removed from the knob position, the distance between the signal magnet 202 and the second sensor is increased, the magnetic field intensity sensed by the second sensor is weakened, and the switch signal is formed by the strength of the magnetic field intensity.

The first sensor and the second sensor may be two chips independent of each other. In this embodiment, the first sensor and the second sensor are the same chip, which can further reduce the cost.

Referring to fig. 3, after the above alignment mechanism is adopted, when the magnetic adsorption knob is installed, only the circuit substrate 1 needs to be fixed to the back side of the panel 100 (fixed by screws in fig. 3), so the installation is very convenient, after the installation, the knob body 200 is placed on the front side of the panel 100, the adsorption magnet 201 and the positioning magnet 3 adsorb the knob body 200 on the front side of the panel 100 according to the principle of opposite attraction, the signal magnet 202 in the knob body 200 is opposite to the sensor 2 on the circuit substrate 1, and the pause-contusion-generating magnet 4 in the knob body 200 is matched with the pause-contusion-generating magnet 4 on the circuit substrate 1 to generate pause-contusion when the knob body 200 rotates. Since the bracket 5 of the positioning magnet 3 is fixed on the circuit substrate 1 and fixed with the sensor 2, the signal magnet 202 can be precisely aligned with the sensor 2 without misalignment after the knob body 200 is attached to the panel 100.

As can be seen from the above, by the above alignment mechanism, not only the precise alignment of the signal magnet 202 and the sensor 2 can be realized, but also the installation operation of the magnetic adsorption knob is simplified, so that the installation of the magnetic adsorption knob is very convenient.

Second embodiment:

referring to fig. 4 and 5, the alignment mechanism of the second embodiment includes: a circuit board 1 carrying the sensor 2; and a bracket 5 fixed on the circuit substrate 1 at the sensor 2 for mounting a positioning magnet 3; when in use, the positioning magnet 3 is matched with the adsorption magnet 201 in the knob body 200, and the knob body 200 is adsorbed on the surface of the panel 100 by the principle of opposite attraction. Since the bracket 5 of the positioning magnet 3 is fixed on the circuit substrate 1 and fixed with the sensor 2, the signal magnet 202 can be precisely aligned with the sensor 2 without misalignment after the knob body 200 is attached to the panel 100.

The difference from the first embodiment is that: the positioning magnet 3 and the attracting magnet 201 in the first embodiment are ring-shaped structures. While the positioning magnet 3 and the attracting magnet 201 in the second embodiment are block-shaped structures, correspondingly, the magnet accommodating chamber on the bracket 5 is provided at the center of the upper end of the bracket 5. The second embodiment provides better centering of the knob body 200 than the first embodiment.

The present invention has been described in detail with reference to the specific embodiments, and the detailed description is only for assisting the skilled person in understanding the content of the present invention, and can not be understood as the limitation of the protection scope of the present invention. Various decorations, equivalent changes and the like which are performed on the scheme by the technical personnel in the field under the conception of the invention are all included in the protection scope of the invention.

Claims

1. An alignment mechanism for aligning a signal magnet (202) of a magnetic attachment knob with a sensor (2), the alignment mechanism comprising:

a circuit substrate (1) carrying the sensor (2); and

a bracket (5) fixed on the circuit substrate (1) at the sensor (2) and used for installing a positioning magnet (3);

the positioning magnet (3) is used for being matched with an adsorption magnet (201) in the knob body (200) to adsorb the knob body (200) on the surface of the panel (100).

2. The alignment mechanism according to claim 1, wherein the bracket (5) comprises:

a first positioning portion (52) for positioning the positioning magnet (3); and

a second positioning portion (51) for positioning the cogging-feeling generating magnet (4).

3. The alignment mechanism according to claim 2, wherein the bracket (5) includes an annular magnet housing chamber, an inner ring portion of the magnet housing chamber constituting the first positioning portion (52), and an outer ring portion of the magnet housing chamber constituting the second positioning portion (51).

4. The alignment mechanism according to claim 1, wherein the sensor (2) comprises:

a first sensor for detecting an angular displacement of the knob body (200); and

and the second sensor is used for detecting whether the knob body (200) is away from the knob position.

5. The alignment mechanism of claim 4, wherein the first sensor and the second sensor are the same chip.

6. The alignment mechanism of claim 4 wherein the first sensor and the second sensor are two chips independent of each other.

7. The alignment mechanism according to claim 1, wherein the positioning magnet (3) is a block-shaped structure, and a magnet accommodating cavity of the bracket (5) for mounting the positioning magnet (3) is arranged at the center of the end of the bracket (5).