Magnetic steel mounting structure for push button switch

Abstract

The utility model provides a button switch's magnetic steel mounting structure, including switch casing, circuit board, pole and magnetic steel, circuit board installs on switch casing, is equipped with hall element on circuit board, pole, removeable installation is in switch casing, and is equipped with the magnetic steel with hall element cooperation, wherein, magnetic steel is H, and pole forms has with H magnetic steel adaptation and inserts the first insertion groove. H magnetic steel and the first insertion groove adaptation and insert on the pole, replace traditional adhesive fixed through the clamping, avoid the problem that magnetic steel displacement / fall off caused by glue aging or vibration completely, improve the reliability significantly, prolong the service life of switch.

Description

Technical Field

[0001] This utility model relates to the field of switch technology, specifically to a magnet mounting structure for a push-button switch. Background Technology

[0002] Push-button switches are widely used in handheld power tools, such as electric drills, electric grinders, electric wrenches, and electric screwdrivers.

[0003] In existing push-button switches, the magnet is usually fixed to the lever by adhesive and works with the Hall element on the circuit board to achieve non-contact magnetic induction triggering. Frequent switch operation or external vibration can easily cause fatigue of the adhesive layer, causing displacement or even detachment between the magnet and the lever. The displacement of the magnet position will change its relative distance with the Hall element and the magnetic field distribution, causing abnormal triggering signals (such as false triggering or response lag), ultimately leading to the failure of the switch function. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the defects in the prior art where the magnet is prone to displacement or falling off, resulting in abnormal trigger signals, thereby providing a magnet mounting structure for a push-button switch with high reliability.

[0005] Therefore, this utility model provides a magnet mounting structure for a push-button switch, including a switch housing, a circuit board, and a lever. The circuit board is mounted on the switch housing and has a Hall element. The lever is movably mounted on the switch housing and has a magnet that cooperates with the Hall element. The magnet is H-shaped, and the lever is formed with a first slot that is adapted to be inserted into the H-shaped magnet.

[0006] The magnet includes a first magnetic strip disposed adjacent to the circuit board and a second magnetic strip disposed away from the circuit board, the first magnetic strip and the second magnetic strip being connected by a connecting strip.

[0007] The width of the first magnetic strip is greater than the width of the second magnetic strip.

[0008] The Hall element is mounted on the side of the circuit board, and a second slot is formed on the switch housing for the circuit board to be vertically inserted. The extension direction of the second slot is parallel to the extension direction of the first slot.

[0009] The technical solution of this utility model has the following advantages:

[0010] 1. The magnetic steel mounting structure of the push button switch provided by this utility model has an H-shaped magnetic steel that is adapted to and inserted into the first slot on the lever. The snap-fit ​​replaces the traditional adhesive fixing, completely avoiding the problem of magnetic steel displacement / falling off caused by glue aging or vibration, significantly improving reliability and extending the service life of the switch.

[0011] 2. The magnetic steel mounting structure of the push-button switch provided by this utility model, since the Hall element is mainly affected by the magnetic field of the first magnetic strip placed nearby, the width of the second magnetic strip is set to be narrower, which can reduce weight and lower cost. Attached Figure Description

[0012] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0013] Figure 1 This is a perspective view of the push button switch of this utility model;

[0014] Figure 2 A 3D view of the magnet mounted on the lever;

[0015] Figure 3 This is a schematic diagram of the exploded structure of the magnet and the lever.

[0016] Explanation of reference numerals in the attached diagram: 1. Switch housing; 2. Circuit board; 3. Hall element; 4. Toggle lever; 5. Magnet; 6. First slot; 7. First magnetic strip; 8. Second magnetic strip; 9. Connecting strip; 10. Second slot. Detailed Implementation

[0017] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0021] Example

[0022] This embodiment provides a magnetic mounting structure for a push-button switch, such as... Figure 1 As shown, it includes a switch housing 1, a circuit board 2, and a lever 4.

[0023] The switch housing 1 is formed with a second slot 10 for the circuit board 2 to be vertically inserted.

[0024] like Figure 1 As shown, the circuit board 2 is mounted on the switch housing 1, and a Hall element 3 is provided on the side of the circuit board 2.

[0025] A lever 4 is movably mounted on the switch housing 1 and is provided with a magnet 5 that cooperates with the Hall element 3, wherein the magnet 5 is H-shaped, such as... Figure 2 and Figure 3 As shown, the lever 4 is formed with a first slot 6 that is adapted to be inserted into the H-shaped magnet 5, and the extension direction of the second slot 10 is parallel to the extension direction of the first slot 6. In this embodiment, the magnet 5 includes a first magnetic strip 7 disposed adjacent to the circuit board 2 and a second magnetic strip 8 disposed away from the circuit board 2. The first magnetic strip 7 and the second magnetic strip 8 are connected by a connecting strip 9, and the width of the first magnetic strip 7 is greater than the width of the second magnetic strip 8. During assembly, the magnet 5 is inserted into the first slot 6 of the lever 4 from top to bottom, and the circuit board 2 is also inserted into the second slot 10 of the switch housing 1 from top to bottom.

[0026] The magnetic steel mounting structure of the push button switch provided by this utility model has an H-shaped magnetic steel 5 that is adapted to and inserted into the first slot 6 on the lever 4. The snap-fit ​​replaces the traditional adhesive fixation, completely avoiding the problem of magnetic steel displacement / falling off caused by glue aging or vibration, significantly improving reliability and extending the service life of the switch.

[0027] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A magnet mounting structure for a push-button switch, characterized in that, include: Switch housing (1); A circuit board (2) is mounted on the switch housing (1), and a Hall element (3) is provided on the circuit board (2); A lever (4) is movably mounted on the switch housing (1) and is provided with a magnet (5) that cooperates with the Hall element (3), wherein the magnet (5) is H-shaped and the lever (4) is formed with a first slot (6) that is adapted to be inserted into the H-shaped magnet (5).

2. The magnet mounting structure of the push-button switch according to claim 1, characterized in that, The magnet (5) includes a first magnetic strip (7) disposed adjacent to the circuit board (2) and a second magnetic strip (8) disposed away from the circuit board (2), and the first magnetic strip (7) and the second magnetic strip (8) are connected by a connecting strip (9).

3. The magnet mounting structure of the push-button switch according to claim 2, characterized in that, The width of the first magnetic strip (7) is greater than the width of the second magnetic strip (8).

4. The magnet mounting structure of the push-button switch according to claim 1, characterized in that, The Hall element (3) is mounted on the side of the circuit board (2), and a second slot (10) is formed on the switch housing (1) for the circuit board (2) to be vertically inserted. The extension direction of the second slot (10) is parallel to the extension direction of the first slot (6).

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