CN219105990U - Waterproof button and converter control panel - Google Patents

Abstract

The utility model discloses a waterproof key and a control panel of a frequency converter; the waterproof key comprises a first key main body and a second key main body; the first key main body and the second key main body are integrally formed; the second key main body is provided with a lip structure; the lip edge structure extends upwards along the first key main body and is bent to form an arc-shaped structure, and the opening direction of the opening of the arc-shaped structure is away from the outer surface of the first key main body; the frequency converter control panel comprises a shell and a circuit board; the shell is provided with a mounting hole, and the key is arranged in the mounting hole; a circuit board is arranged below the second key main body and is arranged in the shell; the lower end of the groove below the second key body corresponds to a triggering mechanism on the circuit board. The lip edge structure provided by the utility model can provide a larger compression range; the assembly process is simple; compact structure and small space occupation.

Description

Waterproof button and converter control panel

Technical Field

The utility model relates to the technical field of key structures, in particular to a waterproof key and a control panel of a frequency converter.

Background

Various rubber key waterproof structures exist in the market at present, for example, an adhesive mode is adopted, but the assembly process of the mode is complex, and the additional cost of adhesive or double-sided adhesive is involved; an interference fit mode is adopted, but the mode requires higher dimensional accuracy of the matched parts; and for example, the rubber bulge is pressed with the shell or the circuit board, but the compression force and the compression amount in the pressing process are large, the screw is generally required to be fixed along the sealing line, the assembly process is complex, and the cost is high. The traditional key has no back-off lip structure, and the lip is a part outline, and can deform during compression, so that the keyboard is not easy to position in a plane; some keys are provided with a lip structure for sealing the hollow space, but the technology is difficult to realize, and the occupied space is wider. At present, the frequency converter control panel with waterproof keys in the market generally adopts an adhesive or secondary injection molding process, namely, the rubber keys are directly injected on the plastic shell. The gluing is mainly the assembly process is slightly complicated, and the secondary injection molding is mainly with high costs.

For example, chinese patent No. CN205428779U discloses a key sealing structure, which consists of a key, a plastic housing, and a sealing ring; the key comprises a key cap and a key shaft, two cantilevers which are symmetrically distributed and the top ends of which are outwards dispersed are arranged in the middle of the key shaft, and a key sealing groove is formed below the bottom of the cantilever; a key groove is formed in the plastic shell, two travel grooves are formed in the guide surface of the key groove, and a circle of sealing grooves are formed in the inner side of the plastic shell and correspond to the key groove; the sealing ring is provided with an annular upper sealing lip and an annular lower sealing lip; the key is installed in the key groove, the key shaft is matched with the guide surface of the key groove, the top end of the cantilever is matched with the upper end surface of the travel groove, the upper sealing lip of the sealing ring is used for clamping the sealing groove of the key, and the lower sealing lip is used for clamping the sealing groove. For another example, chinese patent No. CN215377271U discloses a key structure and an electronic device, which specifically include: a housing, keys and an elastomeric seal; the shell is provided with a key pressing groove and a key hole arranged at the bottom of the key pressing groove; one end of the key is arranged in the key groove, and the other end of the key extends into the shell through the key hole and is abutted against the function switch in the shell; the key is arranged on one side of the key groove, and a dredging structure is arranged on the key groove and extends from the groove bottom of the key groove towards the groove opening direction of the key groove; the elastic sealing piece is sleeved on one side of the key, which is positioned on the key groove, and is elastically abutted on the groove bottom on the periphery of the key hole. But the structures of these two patents are relatively complex.

Therefore, a device with simple structure, convenient operation and good waterproof effect needs to be designed.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a waterproof key and a control panel of a frequency converter.

In order to achieve the purpose of the utility model, the technical scheme adopted by the utility model is as follows:

a waterproof key comprises a first key body and a second key body;

the first key main body and the second key main body are integrally formed;

the second key main body is provided with a lip structure; the lip edge structure extends upwards along the first key main body and is bent to form an arc-shaped structure, and the opening direction of the opening of the arc-shaped structure is away from the outer surface of the first key main body.

Based on the above technical scheme, further, the first key main body is one or more of a cylinder and a square.

Based on the above technical scheme, further, the recess is seted up to second button main part lower extreme.

The frequency converter control panel is characterized by comprising a shell and a circuit board;

the shell is provided with a mounting hole, and the key is arranged in the mounting hole;

a circuit board is arranged below the second key main body and is arranged in the shell;

the lower end of the groove below the second key body corresponds to a triggering mechanism on the circuit board.

Based on the technical scheme, further, a plurality of supporting mechanisms are arranged on the shell, and the supporting mechanisms are arranged on the periphery of the triggering mechanism in a surrounding mode.

Compared with the prior art, the utility model has the following beneficial effects:

the lip edge structure provided by the utility model can provide a larger compression range, is insensitive to parts and assembly precision, and can use a buckle or other various fixing modes; simultaneously, the compression force can be adjusted by adjusting the rubber hardness, the thickness of the lip edge and the size of the back-off part so as to provide different waterproof grades; the cost of the rubber mold is low; no adhesive or double-sided adhesive is needed, and the assembly process is simple; compact structure and small space occupation.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

fig. 2 is a schematic structural view of embodiment 1;

FIG. 3 is a rear view of FIG. 2;

reference numerals: 1. a key; 11. a first key body; 12. a second key body; 2. a lip structure; 3. a groove; 4. a housing; 5. a circuit board; 6. a trigger mechanism; 7. and a supporting mechanism.

Detailed Description

In order to make the objects and technical solutions of the present utility model more clear, the technical solutions of the present utility model will be clearly and completely described below with reference to examples.

It should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

Example 1

A waterproof key comprising a first key body 11 and a second key body 12; the first key main body 11 and the second key main body 12 are integrally formed; the second key body 12 is provided with a lip structure 2; the lip structure 2 extends upwards along the first key main body 11 and is bent in an outwards direction away from the first key main body 11 to form an arc-shaped structure, and an opening direction of an opening of the arc-shaped structure is away from the outer surface of the first key main body 11. The arc range of the arc-shaped structure is

The first key body 11 is one or more of a cylinder and a square, and the key 1 shown in fig. 1 includes two shapes of a cylinder and a square. The lower end of the second key main body 12 is provided with a groove 3.

Example 2

As shown in fig. 1 to 3, based on the structure of the waterproof key of embodiment 1, a control panel of a frequency converter is designed, which comprises a housing 4 and a circuit board 5; the shell 4 is provided with a mounting hole, and the key 1 is arranged in the mounting hole; a circuit board 5 is arranged below the second key main body 13, and the circuit board 5 is arranged in the shell 4; the lower end of the groove 3 below the second key main body 12 corresponds to the triggering mechanism 6 on the circuit board 4. The shell 4 is provided with a plurality of supporting mechanisms 7, and the supporting mechanisms 7 are arranged on the periphery of the triggering mechanism 6 in a surrounding mode.

The working principle of the device of this embodiment 2 is: when water in the external environment enters the mounting hole of the casing 4, since the second key body 12 is provided with the lip structure 2, a cavity is formed among the lip structure 2, the first key body 11, the second key body 12 and the casing 4, and the water is stored in the cavity after entering the mounting hole, so that the normal operation of the circuit board 5 below the second key body 12 is not affected. And the lip structure 2 is an inverted lip structure, so that a larger compression range can be provided, and meanwhile, the compression force can be adjusted by adjusting the rubber hardness, the thickness of the lip and the size of an inverted part so as to provide different waterproof grades.

The foregoing is a description of embodiments of the utility model, which are specific and detailed, but are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.

Claims (5)

1. The waterproof key is characterized by comprising a first key body and a second key body;

the first key main body and the second key main body are integrally formed;

the second key main body is provided with a lip structure; the lip edge structure extends upwards along the first key body and is bent to form an arc-shaped structure, and the opening of the arc-shaped structure is opened in a direction deviating from the outer surface of the first key body.

2. The waterproof key according to claim 1, wherein the first key body is one or more of a cylinder and a square.

3. The waterproof key according to claim 1, wherein the second key body is provided with a groove at a lower end thereof.

4. A control panel of a frequency converter using the waterproof key of any one of claims 1 to 3, comprising a housing and a circuit board;

the shell is provided with a mounting hole, and the key is arranged in the mounting hole;

a circuit board is arranged below the second key main body and is arranged in the shell;

the lower end of the groove below the second key body corresponds to a triggering mechanism on the circuit board.

5. The control panel of claim 4, wherein the housing is provided with a plurality of support mechanisms, and the support mechanisms are disposed around the periphery of the trigger mechanism.

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