Annular magnet, knob switch assembly and vehicle

Abstract

The utility model discloses an annular magnet, a knob switch assembly and a vehicle, the outer peripheral wall of the annular magnet is provided with inner concave parts which have magnetism and are concave towards the inner part of the annular magnet and outer convex parts which have magnetism and are convex towards the outer part of the annular magnet, and the inner concave parts and the outer convex parts are arranged along the outer peripheral wall of the annular magnet in a staggered manner. The annular magnet is simple in structure, magnetic pole distribution of the magnet can be judged without measurement and painting distinguishing on the basis that cost is not increased, and cost reduction and efficiency improvement are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of magnets, in particular to a ring magnet, a knob switch assembly and a vehicle. Background Art

[0002] Traditional magnets require the North and South poles to be colored, or they must be tested with a magnetic plate to determine the magnetic direction of the magnet, which brings inconvenience to the use of the magnet to a certain extent. Summary of the Invention

[0003] In response to the above problems, a ring magnet, a knob switch assembly and a vehicle are provided, aiming to effectively solve the problems existing in the background technology.

[0004] The specific technical solutions are as follows:

[0005] The first aspect of the present invention provides a ring magnet, wherein the outer peripheral wall of the ring magnet is provided with a magnetic inner concave portion and an outer convex portion, the inner concave portion and the outer convex portion are alternately arranged along the outer peripheral wall of the ring magnet, and the magnetic properties of the outer convex portion and the inner concave portion are opposite.

[0006] Furthermore, the magnetic properties of the outer convex portion are N-level, and the magnetic properties of the inner concave portion are S-level.

[0007] Furthermore, the magnetic properties of the outer convex portion are S-level, and the magnetic properties of the inner concave portion are N-level.

[0008] Furthermore, the number of the inner concave portions and the outer convex portions is an even number.

[0009] Furthermore, the number of the inner concave portions and the outer convex portions is an odd number.

[0010] Furthermore, the annular magnet is magnetized longitudinally in a direction parallel to the center line of the annular magnet.

[0011] The second aspect of the present invention is to provide a knob switch assembly, comprising:

[0012] A knob having a ring magnet disposed therein; and

[0013] The housing has a knob which is rotatably mounted on the housing. The housing is provided with a magnetic sensor for sensing magnetic changes of the annular magnet and a controller connected with the magnetic sensor.

[0014] The third aspect of the present invention is to provide a vehicle including the above-mentioned knob 4 switch assembly.

[0015] The beneficial effects of the above scheme are:

[0016] The ring magnet provided by the utility model has a simple structure, and the magnetic pole distribution of the magnet can be determined without measurement and coloring distinction without increasing the cost, thereby achieving cost reduction and efficiency improvement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a ring magnet provided in an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the exploded structure of the knob switch assembly provided in an embodiment of the present utility model.

[0019] In the accompanying drawings: 1. annular magnet; 2. inner concave portion; 3. outer convex portion; 4. knob; 5. housing. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection of the present invention.

[0021] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0022] The present invention will be further described below with reference to specific embodiments, but this is not intended to limit the present invention.

[0023] like Figure 1 As shown, the outer peripheral wall of the annular magnet 1 provided in the embodiment of the present invention is provided with an inner concave portion 2 which is magnetic and recessed toward the inside of the annular magnet 1 and an outer convex portion 3 which is magnetic and protrudes toward the outside of the annular magnet 1. The above-mentioned inner concave portion 2 and the outer convex portion 3 are staggered along the outer peripheral wall of the annular magnet 1.

[0024] In the present invention, the magnetism of the outer convex portion 3 and the inner concave portion 2 is opposite, that is, when the magnetism of the inner concave portion 2 is N level, the magnetism of the outer convex portion 3 is correspondingly S level, or when the magnetism of the inner concave portion 2 is S level, the magnetism of the outer convex portion 3 is correspondingly N level.

[0025] The annular magnet 1 has a simple structure and can determine the magnetic pole distribution of the magnet by means of the concave and convex phenomena on the outer wall of the magnet without measuring or coloring without increasing the cost, thereby reducing costs and increasing efficiency.

[0026] Furthermore, based on the above-mentioned annular magnet 1, the present invention further provides a knob switch assembly, which includes a knob 4 and a shell 5; the knob 4 is provided with an annular magnet 1, and the knob 4 is rotatably mounted on the shell 5, and the shell 5 is provided with a magnetic sensor for sensing the magnetic changes of the annular magnet 1 and a controller connected to the magnetic sensor.

[0027] It can be understood that the above-mentioned annular magnet 1 is magnetized longitudinally in a direction parallel to the center line of the annular magnet 1. Under this structure, when the knob 4 is rotated, the knob 4 drives the annular magnet 1 to rotate, and the magnetic sensor fixed in the housing 5 senses the magnetic changes on the annular magnet 1, such as S-level-N-level-S-level, thereby distinguishing the knob rotation direction 5, and converting the magnetic induction signal into an electrical signal while identifying the rotation direction. The controller connected to the magnetic sensor can realize the set functions according to the above signals, such as temperature, water flow, time, switch opening and closing, and sending gear signals, etc., or a combination of multiple functions. For further explanation, let's take the magnetic sensor as a two-way Hall sensor as an example. In the initial state, the two-way Hall switches can be respectively under the S pole and N pole. When the knob 4 rotates and drives the ring magnet 1, the two-way Hall switches will go through the S-level-N-level-S level and N-level-S-level-N level processes respectively. The two Hall switches are turned on and off successively, thereby distinguishing the rotation direction of the knob 4. While identifying the rotation direction, a corresponding rotation direction signal is issued. When the above-mentioned knob switch assembly is further applied to a knob with a gear ring, a corresponding gear signal can be specifically issued. It should be noted that under the above-mentioned structure, the assembler can quickly select and use a Hall sensor with corresponding recognition capabilities according to the magnetic properties corresponding to the outer protrusion 3 and the inner concave part 2. For example, when the outer protrusion 3 and the inner concave part 2 are respectively the S pole and the N pole, the S-level Hall switch and the N-level Hall switch can be quickly assembled under the outer protrusion 3 and the inner concave 2, avoiding assembly errors or low assembly efficiency caused by unclear magnetic polarity.

[0028] The above are only preferred embodiments of the present invention and do not limit the implementation methods and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the contents of the present invention specification should be included in the protection scope of the present invention.

Claims

1. A ring magnet, characterized in that: The outer peripheral wall of the annular magnet is provided with a magnetic inner concave portion and an outer convex portion, the inner concave portion and the outer convex portion are alternately arranged along the outer peripheral wall of the annular magnet, and the magnetic properties of the outer convex portion and the inner concave portion are opposite.

2. The ring magnet according to claim 1, characterized in that The magnetic properties of the outer convex portion are N-level, and the magnetic properties of the inner concave portion are S-level.

3. The ring magnet according to claim 1, wherein The magnetic properties of the outer convex portion are S-level, and the magnetic properties of the inner concave portion are N-level.

4. The ring magnet according to any one of claims 1 to 3, characterized in that: The number of the inner concave portions and the outer convex portions is an even number.

5. The ring magnet according to any one of claims 1 to 3, characterized in that: The number of the inner concave portions and the outer convex portions is an odd number.

6. The ring magnet according to any one of claims 1 to 3, characterized in that: The annular magnet is magnetized longitudinally along a direction parallel to the central axis of the annular magnet.

7. A knob switch assembly, characterized in that: include: A knob having a ring magnet disposed therein; as well as The housing is provided with a magnetic sensor for sensing the magnetic change of the annular magnet and a controller connected with the magnetic sensor.

8. A vehicle, characterized in that: The rotary switch assembly comprises the rotary switch assembly according to claim 7.

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