CN211788737U - Key structure, electric control box assembly and air conditioner - Google Patents

Abstract

The utility model discloses a key structure, an electric control box assembly and an air conditioner, the air conditioner comprises a face frame component and the electric control box assembly, the electric control box assembly comprises an electric control box shell, a circuit board and a key structure, the circuit board is positioned in the electric control box shell, the circuit board is provided with a second key, the position of the second key corresponds to the position of a through hole of the key structure, so that the second key can be triggered to work when the first key is pressed, the key structure comprises a shell and a first key, the shell is provided with the through hole, the first key comprises a key cap, a limiting part and a shaft part passing through the through hole, the key cap and the limiting part are respectively positioned at two ends of the shaft part and respectively positioned at two sides of the shell, the widths of the key cap and the limiting part are both larger than the diameter of the through hole to realize upper and lower two-layer sealing, the key structure plays a, resulting in damage to the circuit board and improved reliability of the air conditioner.

Description

Key structure, electric control box assembly and air conditioner

Technical Field

The utility model relates to a life electrical apparatus field, in particular to button structure, automatically controlled box subassembly and air conditioner.

Background

At present, the auto cool button of the common air conditioner is an open structure, and the button is not dustproof and waterproof.

For the air conditioner with the upper electric control box, when the air conditioner is cleaned, particularly steam is used for cleaning, water easily enters the electric control box from the keys, and a circuit board is damaged.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a button structure, can waterproof and dustproof sealed.

The utility model also provides an automatically controlled box subassembly of having above-mentioned button structure.

The utility model also provides an air conditioner of having above-mentioned automatically controlled box subassembly.

According to the utility model discloses an embodiment of the first aspect provides a button structure, include: casing and first button, be provided with the through-hole on the casing, first button includes key cap, spacing portion and passes the axial region of through-hole, the key cap with spacing portion set up respectively in the both ends of axial region, and be located respectively the both sides of casing, wherein, the key cap with the width of spacing portion all is greater than the diameter of through-hole.

Has the advantages that: the key structure comprises a shell and a first key, wherein the key comprises a shaft part, a key cap and a limiting part, the shaft part, the key cap and the limiting part penetrate through a through hole, the key cap is located at one end of the shaft part, the limiting part is located at the other end of the shaft part, the key cap and the limiting part are respectively located on two sides of the shell, the width of the key cap and the limiting part is larger than the diameter of the through hole, a sealing through hole is shielded, a sealing effect is achieved, and.

According to the utility model discloses the button structure of first aspect embodiment, the outer fringe of key cap be provided with slope downwardly extending and with the axis direction of axial region becomes the bullet wall of acute angle.

According to the utility model discloses the button structure of the first aspect embodiment, the material of button includes elastomeric material.

According to the utility model discloses a second aspect embodiment provides an automatically controlled box subassembly, include: the electronic control box comprises an electronic control box shell, a circuit board and any one of the key structures, wherein the shell in the key structure and the electronic control box shell are integrally formed, or the shell is installed on the electronic control box shell, the circuit board is located in the electronic control box shell, a second key is arranged on the circuit board, the position of the second key corresponds to the position of a through hole of the key structure, and therefore the first key can be pressed to trigger the second key to work.

Has the advantages that: this automatically controlled box subassembly, including automatically controlled box casing, circuit board and button structure, casing and automatically controlled box casing integrated into one piece or casing among the button structure are installed on automatically controlled box casing, the circuit board is located automatically controlled box casing, be provided with the second button on the circuit board, the position of second button is corresponding with the position of the through-hole of button structure, so that press first button and can trigger second button work, play sealed waterproof effect through the button structure, prevent that water from getting into automatically controlled box subassembly inside from the through-hole, lead to the circuit board to damage.

According to the utility model discloses an aspect the automatically controlled box subassembly, still include the support frame, the support frame install in the automatically controlled box casing, the support frame is located the button structure with between the circuit board.

According to the utility model discloses an automatically controlled box subassembly of second aspect, be provided with elastic contact on the support frame, elastic contact one end is fixed, and the other end is the free end, just elastic contact's free end is located the button structure with between the second button.

According to the utility model discloses an aspect the automatically controlled box subassembly, elastic contact with support frame integrated into one piece.

According to the second aspect of the present invention, the distance between the elastic contact piece and the second button is 0.3mm to 1 mm.

According to the utility model discloses an aspect the automatically controlled box subassembly, the second button sets up the weak current district of circuit board.

According to the utility model discloses an automatically controlled box subassembly of second aspect, the diameter of through-hole is less than 8 mm.

According to the utility model discloses an automatically controlled box subassembly of second aspect, automatically controlled box casing includes upper cover subassembly and lower cover subassembly, upper cover subassembly detachably connects to be fixed on the lower cover subassembly.

According to a third aspect of the present invention, there is provided an air conditioner, including: the face frame part and above arbitrary automatically controlled box subassembly, automatically controlled box subassembly detachably connect to be fixed on the face frame part.

Has the advantages that: this air conditioner, including face frame part and automatically controlled box subassembly, automatically controlled box subassembly detachably connects to be fixed on face frame part, through setting up the automatically controlled box subassembly of waterproof dirt-proof button structure, has improved the reliability of air conditioner.

Drawings

The present invention will be further described with reference to the accompanying drawings and examples;

fig. 1 is a schematic view of a key structure according to an embodiment of the present invention;

fig. 2 is a schematic view of an overall structure of an electric control box assembly according to an embodiment of the present invention;

fig. 3 is an exploded view of an electric control box assembly according to a second aspect of the present invention;

FIG. 4 is a schematic view of a lower lid assembly according to a second aspect of the present invention;

FIG. 5 is a schematic view of a supporting frame according to a second embodiment of the present invention;

FIG. 6 is a schematic view of an upper cover assembly according to a second aspect of the present invention;

fig. 7 is a schematic view of an air conditioner according to a third aspect of the present invention;

reference numerals:

an air conditioner 1000;

an electronic control box assembly 100;

a key structure 10;

a first key 1; a shaft part 11, a key cap 12, a limiting part 13 and an elastic wall 14;

a housing 2;

a through hole 3;

an electronic control box housing 20; a through hole 201, an upper cover assembly 202 and a lower cover assembly 203;

a circuit board 30; a second key 301;

a support frame 40;

a resilient contact 50; free end 501

A face frame member 200.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1, according to the utility model discloses a key structure 10 of first aspect embodiment, including first button 1 and casing 2, be provided with through-hole 3 on the casing 2, first button 1 includes axial region 11, key cap 12 and spacing portion 13, key cap 12 is located the one end of axial region 11, spacing portion 13 is located the other end of axial region 11, axial region 11 passes through-hole 3, be clearance fit between axial region 11 and the through-hole 3, axial region 11 can carry out axial motion in through-hole 3, when pressing down the key cap 12 of first button 1, the whole downward motion of first button 1. The keycap 12 and the limiting portion 13 are located on two sides of the shell 2 respectively, the widths of the keycap 12 and the limiting portion 13 are larger than the diameter of the through hole 3, the keycap 12 and the limiting portion 13 shield the sealing through hole 3 to achieve a sealing effect, the upper layer and the lower layer of sealing ensure that water cannot enter, and reliability of the key structure 10 is improved.

Specifically, key structure 10, including first button 1 and casing 2, be provided with through-hole 3 on the casing 2, first button 1 includes axial region 11, key cap 12 and spacing muscle, and key cap 12 is located the upper end of axial region 11, and spacing muscle is located the lower extreme of axial region 11, and axial region 11 passes through-hole 3, is clearance fit between axial region 11 and the through-hole 3, and axial region 11 can carry out axial motion in through-hole 3. Keycap 12 is located 2 upper ends of casing, and spacing muscle is located the lower extreme of casing 2, and the width of keycap 12 and spacing muscle all is greater than the diameter of through-hole 3, and two-layer implementation is sealed about keycap 12 and the spacing muscle, and keycap 12 and spacing muscle are ensured not to intake, have improved button structure 10's reliability. When in use, the key structure 10 is installed into the housing 2 from top to bottom, because the keycap 12 and the limiting rib interfere with the through hole 3. Therefore, as shown in fig. 1, in the present embodiment, a guide is provided on the lower side wall of the limiting rib, and the key structure 10 has interference during the installation process, but because the first key 1 has a certain elasticity, it can be inserted into the through hole 3.

Referring to fig. 1, in some embodiments, the outer edge of the key cap 12 is provided with a spring wall 14 extending obliquely downward and forming an acute angle with the axial direction of the shaft portion 11. It will be appreciated that the bullet wall 14 is a thin ring of walls disposed at the outer edge of the key cap 12. When the first key 1 is pressed down, the thin wall is also pressed down along with the keycap 12 and is contacted with the shell 2, and finally the thin wall generates elastic deformation. The smaller the acute angle between the spring wall 14 and the axial direction of the shaft 11, the greater the elastic force of the spring wall 14, the greater the thickness of the spring wall 14, and the spring wall 14 returns to the original position when the pressure is removed. In this embodiment, the first key 1 is made of a rubber material. The hardness of the rubber material affects the elasticity of the spring wall 14 and the strength of the first push button 1 when assembled. Of course, the material of the first key 1 may be replaced by silica gel.

It will be appreciated that in one embodiment, the material of the first key 1 comprises an elastomeric material. In which an elastomer generally refers to a material that can be recovered after an external force is removed. The elastic body is only obviously deformed under stress, and can be quickly recovered to a high polymer material close to the original state and size after the stress is relaxed. Besides rubber, the elastomer material also comprises a plurality of high polymer materials with different elastic deformation and diversified macromolecule chain crosslinking modes. Elastomers are classified into two types, thermosetting elastomers and thermoplastic elastomers, depending on whether they are plasticized or not. Since the width of the stopper portion 13 and the key cap 12 at both ends of the shaft portion 11 is larger than the diameter of the through hole 3, when mounting, the stopper portion 13 or the key cap 12 of the first key 1 can still be inserted through the through hole 3 by setting the stopper portion 13 or the key cap 12 as an elastomer material.

Referring to fig. 2 and fig. 3, according to the utility model discloses automatically controlled box subassembly 100 of second aspect embodiment, including automatically controlled box casing 20, button structure 10 and circuit board 30, be provided with perforation 201 on the automatically controlled box casing 20, button structure 10 detachably installs in perforation 201, and circuit board 30 is located automatically controlled box casing 20, is provided with second button 301 on the circuit board 30, and the position of second button 301 corresponds with the position of perforation 201 to make and press first button 1 can trigger second button 301 work. The key structure 10 can perform a sealing and waterproof function, and prevent water from entering the electronic control box assembly 100 from the through hole 201, which causes damage to the circuit board 30. It is understood that the foregoing and lower through holes 201 are of the same structure as the through holes 3 of the key structure 10.

In some embodiments, the housing 2 of the key structure 10 may be fixedly connected to the electrical control box housing 20. The shell 2 of the key structure 10 can also be integrally formed with the electric control box shell 20, so that the installation is convenient and the manufacturing cost is reduced. The housing 2 may also be formed separately and then fixedly connected to the designated position of the electrical control box housing 20 by glue or ultrasonic welding. The through hole 201 on the electric control box shell 20 includes an upper hole and a lower hole, the diameter of the upper hole is larger than that of the lower hole, the shaft portion 11 of the first key 1 passes through the lower hole, and the keycap 12 of the first key 1 is located in the upper hole. The keycap 12 is completely hidden in the upper hole of the electronic control box shell 20, and is integrated with the electronic control box shell 20, so that the aesthetic property of the electronic control box shell 20 is enhanced.

In some embodiments, specifically, the electronic control box assembly 100 includes an electronic control box housing 20, a button structure 10, a circuit board 30 and a supporting frame 40, wherein the circuit board 30 is located in the electronic control box housing 20, the supporting frame 40 is installed in the electronic control box housing 20, a second button 301 is disposed on the circuit board 30, a position of the second button 301 corresponds to a position of the through hole 201, and the supporting frame 40 is located between the button structure 10 and the circuit board 30. The supporting frame 40 has a shielding effect on the circuit board 30 on one hand, so that the dustproof purpose is achieved, the reliability of the electronic control box assembly 100 is improved, and on the other hand, fingers can be prevented from touching the circuit board 30, and the safety performance is improved.

Referring to fig. 3 and 5, in some embodiments, the electronic control box assembly 100 includes an electronic control box housing 20, a key structure 10, a circuit board 30, and a support frame 40. Wherein, the supporting frame 40 is provided with an elastic contact piece 50. Further, in the present embodiment, the elastic contact 50 has a single cantilever structure. One end of the elastic contact piece 50 is fixed, the other end is a free end 501, and the free end 501 of the elastic contact piece 50 is located between the first key 1 and the second key 301. The free end 501 of the elastic contact piece 50 can be pressed down to trigger the second key 301 when the first key 1 is pressed down. The elastic contact piece 50 is introduced, so that the first key 1 is guaranteed to have good touch feeling when pressed, the first key cannot be easily failed, and the reliability is improved.

The specific process of the operation of the electronic control box assembly 100 is as follows: when a finger presses the first key 1, the first key 1 is pressed under the stress, the bottom end of the first key 1 touches the elastic contact piece 50 on the support frame 40, the elastic contact piece 50 continues to be pressed down to touch the second key 301, the elastic contact piece 50 is triggered to a certain degree after the finger is pressed down, and the elastic contact piece 50 is reset after the finger is released. As shown in fig. 3, the contact end of the elastic contact piece 50 and the second button 301 is provided with a protruding structure, and the protruding structure ensures that the first button 1 has good touch feeling when pressed.

Referring to fig. 5, in some embodiments, the elastic contact pieces 50 are integrally formed with the support frame 40, and accordingly the support frame 40 is located between the key structure 10 and the circuit board 30. The elastic contact piece 50 and the support frame 40 are an integral piece, so that the structure is stable, the assembly efficiency is improved, and the manufacturing cost is reduced. The elastic contact piece 50 is made of plastic material, and the elastic contact piece 50 provides elasticity by means of elastic deformation of the plastic itself.

In some embodiments, the distance between the elastic contact piece 50 and the second key 301 is 0.3mm-1 mm. It is understood that the distance between the elastic contact piece 50 and the second key 301 as described herein refers to: when the first key 1 is not pressed and the elastic contact piece 50 is at the initial position, the shortest distance is between the convex structure at the bottom end of the elastic contact piece 50 and the second key 301. If the distance between the elastic contact piece 50 and the second key 301 is too large, the hand feeling is not good when the first key 1 is pressed; when the distance between the elastic contact piece 50 and the second button 301 is too small, the solder may float high when the second button 301 is soldered by SMT, so that the second button 301 and the elastic contact piece 50 directly touch the triggering function, and false triggering may occur. When the closest distance between the elastic contact piece 50 and the second key 301 is within the range of 0.3mm-1mm, the hand feeling of pressing the first key 1 is better, and the probability that the second key 301 is triggered by mistake is smaller.

Referring to fig. 3, in some embodiments, the electronic control box assembly 100 includes an electronic control box housing 20, a button structure 10, a circuit board 30, and a support frame 40. The circuit board 30 is a PCB, the PCB is located in the electronic control box casing 20, the support 40 is installed in the electronic control box casing 20, the PCB is provided with a second key 301, the position of the second key 301 corresponds to the position of the through hole 201, and the support 40 is located between the key structure 10 and the PCB. And, the second key 301 is disposed in a weak current region of the PCB board. The key structure 10, the support frame 40 and the second key 301 are arranged in a weak current area of the PCB, so that triple protection is realized to protect the PCB, and the safety of the PCB is ensured. The second key 301 is a touch key disposed on the PCB, and the touch key is integrally accommodated in the electrical control box casing 20. It can be understood that the touch key can trigger the electrical component on the PCB to implement the function of the electrical component.

It will be appreciated that in one embodiment, the perforations 201 are less than 8mm in diameter. The diameter of the through hole 201 is set to be smaller than 8mm, so that the test finger requirements of IEC are met, and even if the keycap 12 of the first key 1 falls off and is lost, fingers cannot pass through the through hole 201 to touch the circuit board 30 positioned on the inner side of the electric control box shell 20. Furthermore, according to the above embodiment, the support frame 40 is present inside the electronic control box casing 20, and the support frame 40 can further prevent the possibility of touching the circuit board 30 by hand or foreign objects. In addition, the area where the second button 301 is located is a weak current area of the PCB, which protects the PCB in a triple manner.

Referring to fig. 3 and 4, the electronic control box casing 20 includes an upper cover assembly 202 and a lower cover assembly 203, and the upper cover assembly 202 is detachably connected and fixed to the lower cover assembly 203. Specifically, the upper cover assembly 202 and the lower cover assembly 203 jointly enclose to form an accommodating space, the circuit board 30 is arranged in the accommodating space, and when the circuit board 30 needs to be placed in the accommodating space or the circuit board 30 needs to be taken out of the accommodating space, the upper cover assembly 202 and the lower cover assembly 203 can be separated, so that the accommodating space is opened, and the circuit board 30 can be taken out or placed in. The upper cover assembly 202 and the lower cover assembly 203 are detachably connected and fixed, so that the electronic control box shell 20 is convenient to disassemble and maintain.

Referring to fig. 3 and 6, a penetration hole 201 is provided on the upper cover assembly 202, and the first button 1 is fixed on the upper cover assembly 202 by a detachable coupling. The lower cover assembly 202 is provided with an inclined portion which forms an accommodating space for accommodating the circuit board 30 together with a portion of the upper cover assembly 202, reducing the volume of the electronic control box assembly 100 as a whole. One end of the circuit board 30, which is provided with more electrical components, is located at the bottom end of the inclined portion of the lower cover assembly 202, and one end of the circuit board 30, which is provided with the second key 301, is close to the first key 1 of the upper cover assembly 202. The free end 501 of the elastic contact piece 50 is located between the key structure 10 and the second key 301 of the circuit board 30, and the first key 1 is pressed to make the protruding structure at the lower end of the elastic contact piece 50 contact with the second key 301, so as to realize the function of the electrical component.

Wherein, the lower cover assembly 202 is provided with a snap structure, and two ends of the circuit board 30 are fixedly mounted on the snap structure of the lower cover assembly 202 by snap. Of course, the circuit board 30 and the bottom cover assembly 202 are not limited to a snap fit arrangement. One end of the supporting frame 40 is detachably connected and fixed on the lower cover assembly 203, and the first key 1 is detachably connected and fixed on the upper cover assembly 202. The first key 1, the protruding structure of the elastic contact piece 50 and the second key 301 of the circuit board 30 are all located on the same axis.

An air conditioner according to a third aspect of the present invention will be described in detail below.

Referring to fig. 7, in detail, the air conditioner 1000 includes: the electric control box assembly 100 is detachably connected and fixed on the face frame component 200, and the electric control box assembly 100 and the face frame component 200 are detachably connected and fixed, so that the electric control box assembly 100 is convenient to install and maintain. On one hand, the air conditioner 1000 can play a role in sealing and waterproofing through the key structure 10, so that when the air conditioner 1000 is cleaned, water enters the electric control box assembly 100 from the key structure 10, the circuit board 30 of the electric control box assembly 100 is prevented from being damaged, and the reliability of the air conditioner 1000 is effectively improved; on the other hand, the elastic contact piece 50 is introduced into the electronic control box assembly 100, so that the button structure 10 has good touch feeling when being pressed and cannot be easily disabled.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (12)

1. A key structure, comprising:

the shell is provided with a through hole;

the first key comprises a keycap, a limiting part and a shaft part penetrating through the through hole, and the keycap and the limiting part are respectively arranged at two ends of the shaft part and are respectively positioned at two sides of the shell;

wherein, the keycap and the width of the limiting part are both larger than the diameter of the through hole.

2. The key structure according to claim 1, wherein: the outer edge of the keycap is provided with an elastic wall which extends obliquely downwards and forms an acute angle with the axis direction of the shaft part.

3. The key structure according to claim 1 or 2, wherein: the first key is made of an elastomer material.

4. Automatically controlled box subassembly, its characterized in that includes:

an electronic control box housing;

the key structure according to any one of claims 1 to 3, wherein the housing in the key structure is integrally formed with the electrical control box housing, or the housing is mounted on the electrical control box housing; and

the circuit board is positioned in the electric control box shell, a second key is arranged on the circuit board, and the position of the second key corresponds to the position of the through hole of the key structure, so that the second key can be triggered to work when the first key is pressed.

5. The electronic control box assembly of claim 4, wherein: the electronic control box assembly further comprises a support frame, the support frame is installed in the electronic control box shell, and the support frame is located between the key structure and the circuit board.

6. The electronic control box assembly of claim 5, wherein: the support frame is provided with an elastic contact piece, one end of the elastic contact piece is fixed, the other end of the elastic contact piece is a free end, and the free end of the elastic contact piece is located between the first key and the second key.

7. The electronic control box assembly of claim 6, wherein: the elastic contact piece and the support frame are integrally formed.

8. The electronic control box assembly of claim 6, wherein: the distance between the elastic contact piece and the second key is 0.3mm-1 mm.

9. An electrical control box assembly according to any one of claims 4 to 8, wherein: the second key is arranged in a weak current area of the circuit board.

10. An electrical control box assembly according to any one of claims 4 to 8, wherein: the diameter of the through hole is smaller than 8 mm.

11. An electrical control box assembly according to any one of claims 4 to 8, wherein: the electronic control box shell comprises an upper cover assembly and a lower cover assembly, and the upper cover assembly is detachably connected and fixed on the lower cover assembly.

12. An air conditioner, comprising:

a face frame member;

the electronic control box assembly is according to any one of claims 4 to 11, and is detachably connected and fixed on the face frame component.

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