CN210296177U - Button switch seal structure and air purifier - Google Patents

Abstract

The utility model provides a button switch seal structure and air purifier, include: the fixing frame comprises a supporting bottom plate and a mounting plate, and a touch space for triggering the button switch is arranged on the mounting plate; the switch bracket is arranged above the supporting bottom plate, is connected to the fixing frame and comprises a plurality of supporting clamping grooves for accommodating the button switches; further comprising: the switch sheath is arranged between the fixing frame and the switch support, an insulation space used for containing the button switch is formed between the switch sheath and the supporting clamping groove, and the switch sheath is made of an insulation material. The switch sheath is firstly isolated between the button switch and the fixing frame and isolates the button switch in the supporting clamping groove. Because the switch sheath is made of insulating materials, static electricity cannot enter the supporting clamping groove through the switch sheath, and therefore the static electricity cannot be accumulated on the button switch.

Description

Button switch seal structure and air purifier

Technical Field

The utility model relates to a switching element prevents static technical field, concretely relates to button switch seal structure and air purifier.

Background

The generating electrode of the electrostatic air purifier is connected with the high-voltage output end of the voltage doubling module, and ambient air is ionized through point discharge. But also causes a large build-up of static electricity in the parts around the generator.

In consideration of safety requirements, the electrostatic air cleaner generally uses a push switch. The button switch is installed near the purifying component (including the generating pole and the collecting pole), and is linked with the installation of the purifying component. Namely, the button switch is pressed to be conducted after the purification component is installed, and the button switch is reset and disconnected after the purification component is taken out. A large amount of static that the emergence utmost point produced can accumulate on button switch to on the connecting wire transmission mainboard along the switch, produce the chip on the chip of disturbing or even damaging the mainboard to the normal operating of functional components and parts on the mainboard.

The prior art push button switch structure is shown in fig. 1, and includes a fixing frame 1, the fixing frame 1 includes a supporting base plate 11 and a mounting plate 12, and a switch bracket 2 is supported on the supporting base plate 11. Wherein, be equipped with the support slot 21 that is used for placing button switch 3 on the switch bracket 2, support slot 21 and mount 1 enclose into the space that supplies button switch 3 embedding.

The pressing end 31 of the push-button switch 3 extends towards the mounting plate 12, the mounting plate 12 extends towards the pressing end 31 and extends out of the limiting protrusion 121, and the limiting protrusion 121 surrounds the pressing end 31 to form a touch space 122 for the pressing end 31 to stretch and contract.

The fixed frame 1 is provided with a first installation part 14 and a second installation part 15 for installing the switch bracket 2, and the upper end and the lower end of the switch bracket 2 are respectively connected with the second installation part 15 and the first installation part 14 through positioning screws 13.

Static electricity can be accumulated on the button switch 3 from the surrounding environment, when the purifying component is electrified to work, the generating electrode and the collecting electrode ionize air to generate a large amount of static electricity, an opening is arranged on the fixed frame 1 corresponding to the pressing end 31 of the button switch 3 for conveniently touching the button switch 3, and the opening extends into the touching space 122 to touch the pressing end 31 to act. Therefore, static electricity moves toward the push switch 3 along the opening portion and accumulates on the push switch 3. Because button switch 3 passes through wire and mainboard electric connection, consequently the static that accumulates on button switch 3 can lead the mainboard and influence mainboard work. Therefore, a functional structure is required to prevent the button switch from accumulating static electricity.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the defect of accumulating static easily among the prior art on the button switch to a button switch seal structure is provided, and is relatively insulating with the surrounding environment, difficult accumulation static.

A push button switch sealing structure comprising:

the fixing frame comprises a supporting bottom plate and a mounting plate, wherein a touch space for triggering the button switch and a mounting part for mounting the switch bracket are arranged on the mounting plate;

the switch bracket is arranged above the supporting bottom plate, is connected to the fixing frame and comprises a plurality of supporting clamping grooves for accommodating the button switches;

further comprising:

the switch sheath is arranged between the fixing frame and the switch support, an insulation space used for containing the button switch is formed between the switch sheath and the supporting clamping groove, and the switch sheath is made of an insulation material.

The switch sheath comprises a sealing cover, the sealing cover and the pressing end of the button switch are arranged oppositely, the sealing cover is protruded towards the direction far away from the button switch, and the sealing cover is made of elastic materials.

The seal cover includes:

the plane part is arranged opposite to the pressing end;

and the arc part is in arc-shaped transitional connection with the plane part and extends towards the direction far away from the plane part, and when the pressing end is pressed, the arc part is elastically deformed.

The thickness of the plane part is not less than that of the arc part.

The switch sheath is towards the one end of mounting panel stretches out there is the cladding, be provided with the orientation on the mounting panel the spacing arch that the button switch direction extends, spacing arch forms touch the space, the laminating of cladding portion closes the spacing arch of cladding.

The limiting bulge is arranged between the cladding part and the sealing cover.

The switch sheath is provided with a caulking groove for embedding the button switch, the caulking groove is communicated with the sealing cover, and the switch support is detachably arranged on the switch sheath.

And a supporting and positioning surface for supporting the button switch is arranged at the position, close to the sealing cover, of the bottom of the caulking groove.

The switch sheath and the switch bracket extend out of insertion blocks and/or positioning slots which are matched with each other.

The switch support is provided with a plurality of surrounding ribs in a stretching mode, the surrounding ribs are arranged around the supporting clamping grooves in a surrounding mode, the positioning slots are right opposite to the surrounding ribs, and the positioning slots are attached to the side walls of the embedding grooves.

The positioning slot with enclose and be equipped with the notch of stepping down and the threading notch of relative setting on the muscle respectively, the notch of stepping down with the threading notch just to forming the passageway that supplies the wiring to pass.

The switch sheath is sunken towards the part of the support bottom plate to form a matching concave part matched with the first mounting part.

The switch sheath is characterized in that a positioning convex rib is arranged on the supporting base plate, a positioning matching groove matched with the positioning convex rib is arranged on the surface opposite to the switch sheath, and one end of the positioning convex rib extends to the position of the mounting plate.

The switch support is characterized in that a sealing cover plate is arranged at the top of the switch support, an embedding bulge protrudes from the sealing cover plate, and the embedding bulge is in interference fit with an installation groove in the top of the switch support.

The sealing cover plate is provided with at least one positioning convex foot extending towards one side of the switch support, and the top of the switch support is provided with a matching jack for the positioning convex foot to be inserted into.

The side of the sealing cover plate protrudes with a limiting lug, and the switch bracket is provided with a limiting hole for embedding the limiting lug.

The switch bracket passes through installation department demountable installation on the mount, the installation department includes at least one set screw, set screw passes in proper order the switch bracket with the mount.

An air purifier, includes button switch, button switch uses the button switch seal structure of above-mentioned arbitrary scheme to seal.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a button switch seal structure, include: the fixing frame comprises a supporting bottom plate and a mounting plate, wherein a touch space for triggering the button switch and a mounting part for mounting the switch bracket are arranged on the mounting plate; the switch bracket is arranged above the supporting bottom plate, is connected to the fixing frame and comprises a plurality of supporting clamping grooves for accommodating the button switches; further comprising: the switch sheath is arranged between the fixing frame and the switch support, an insulation space used for containing the button switch is formed between the switch sheath and the supporting clamping groove, and the switch sheath is made of an insulation material.

The switch sheath is firstly isolated between the button switch and the fixing frame and isolates the button switch in the supporting clamping groove. Because the switch sheath is made of insulating materials, static electricity cannot enter the supporting clamping groove through the switch sheath, and therefore the static electricity cannot be accumulated on the button switch.

2. The utility model provides a button switch seal structure, the switch sheath includes the sealed cowling, the sealed cowling with button switch's the end of pressing sets up relatively, the sealed cowling takes place to move towards keeping away from the arch of button switch direction, the sealed cowling is made for elastic material.

The work of pressing the switch needs to have certain working space, keeps away from the bellied sealed cowling of button switch direction, reserves the space of enough button switch motion. Because the sealing cover is positioned in the touch space and protrudes towards the opening on the fixed frame. When the button switch is touched from the opening, the button switch needs to be indirectly touched by pressing the sealing cover. The sealing cover made of elastic material has deformation capacity, and when the button switch is pressed, the elastic material is elastically deformed, so that the sealing cover can still maintain the sealing and insulating functions in the process of pressing the button switch.

3. The utility model provides a button switch seal structure, the sealed cowling includes: the plane part is arranged opposite to the pressing end; and the arc part is in arc-shaped transitional connection with the plane part and extends towards the direction far away from the plane part, and when the pressing end is pressed, the arc part is elastically deformed.

The arc-shaped sealing cover has certain deformation capacity in shape, and is made of elastic materials, so that the deformation capacity of the sealing cover is further enhanced.

4. The utility model provides a button switch seal structure, the thickness of plane part is not less than the thickness of arc part.

Because the plane part is the main stressed part when the button is touched, the thickness of the plane part is larger, and the strength requirement when the button switch is frequently pressed can be met.

5. The utility model provides a button switch seal structure, the switch sheath orientation the one end of mounting panel is stretched out there is the cladding, be provided with the orientation on the mounting panel the spacing arch that the button switch direction extends, spacing arch forms touch the space, the cladding laminating of cladding is enclosed and is closed the spacing arch of cladding.

The cladding part and the limiting bulge are mutually matched to play roles in positioning and limiting, and natural deformation easily occurs under the action of gravity because the sealing cover has the deformation capacity. The cladding portion just laminates calliper on spacing arch, plays the effect of pulling to the sealed cowling, prevents that the cladding portion from taking place natural deformation to keep bellied state.

6. The utility model provides a button switch seal structure, spacing protruding setting is in the cladding portion with between the sealed cowling.

The wrapping portion functions to pull the sealing cap so that the sealing cap maintains an outwardly convex shape. And the cladding part is connected with the sealing cover, and the connected part is clamped between the switch bracket and the limiting bulge, so that the sealing property of the supporting clamping groove is further ensured, and static electricity is further prevented from entering and being attached to the button switch.

7. The utility model provides a button switch seal structure, be equipped with the confession on the switch sheath the caulking groove of button switch embedding, caulking groove intercommunication sealed cowling, switch support demountable installation be in on the switch sheath.

The switch support covers from top to bottom and installs on the switch sheath, and button switch is located the caulking groove, and the switch support is sealed with the caulking groove to the laminating of button switch is contradicted in the support draw-in groove of switch support.

8. The utility model provides a button switch seal structure, the caulking groove bottom is close to the position of sealed cowling is equipped with the support button switch's support locating surface.

The supporting and positioning surface plays a role in stable supporting, so that the button switch can be flatly and stably placed in the caulking groove. Meanwhile, the supporting and positioning surface plays a role in positioning, and the pressing end of the button switch placed on the supporting and positioning surface just corresponds to the plane part of the sealing cover.

9. The utility model provides a button switch seal structure, the switch sheath with stretch out the inserted block and/or the positioning slot of mutually supporting on the switch support.

The mutually-matched insertion block and the insertion groove facilitate the mutual combination and disassembly of the switch support and the switch sheath, and the contact area of the lock of the switch support and the switch sheath is increased, so that the switch support and the switch sheath are combined with each other more closely, and the sealing performance of the switch sheath is further improved.

10. The utility model provides a button switch seal structure, it has a plurality of muscle that enclose to stretch out on the switch support, it encloses to close to set up to enclose the muscle support around the draw-in groove, positioning slot is just right enclose the muscle setting, just positioning slot laminates the lateral wall setting of caulking groove.

Enclose the muscle for the slice sheet metal, insert in the positioning slot that elastic material made, enclose the muscle this moment and can be interference fit, improve the inseparable degree of enclosing muscle and positioning slot inter combination to improve the leakproofness of switch sheath. The positioning slot is of a structure with a low middle part and high two side walls, and the two side walls are attached to the surrounding ribs, so that the sealing performance of the switch sheath is further improved.

11. The utility model provides a button switch seal structure, positioning slot with enclose and be equipped with the notch of stepping down and the threading notch of relative setting on the muscle respectively, step down the notch with the threading notch is just supplying the passageway that the wiring passed to formation.

The switch sheath is reserved with a notch for avoiding the position, so that the lead is conveniently electrically connected with the switch.

12. The utility model provides a button switch seal structure, switch sheath is sunken to form the cooperation concave part with first installation portion looks adaptation towards the position of supporting baseplate.

The matching concave part on the switch sheath can be just matched with the first mounting part, so that the switch sheath is stably supported on the supporting bottom plate and the first mounting part. When mounting, the switch sheath can be positioned by means of the matching relation of the matching concave part and the first mounting part.

13. The utility model provides a button switch seal structure, the last protruding muscle in location that is provided with of supporting baseplate, be provided with on the relative face of switch sheath with the protruding muscle in location cooperatees the location cooperation groove, protruding muscle one end in location extends to mounting panel position department.

The positioning convex rib plays a role in positioning the switch sheath, and the positioning convex rib extends and is connected with the mounting plate, so that the structural strength is improved, and a stable integral structure supporting each other is formed among the supporting base plate, the mounting plate and the switch support.

14. The utility model provides a button switch seal structure, switch support top is equipped with sealed apron, it is protruding that sealed apron protrusion has the gomphosis, the protruding interference fit of gomphosis is in among the mounting groove at switch support top.

Because the top of the switch bracket is provided with the mounting groove, the bottom of the mounting groove is provided with a through hole communicated with the button switch. The static electricity entering along the through holes and attached to the push switches also affects the operation of the main board. Therefore, the mounting groove is covered from the top of the switch support by the sealing cover plate arranged in the scheme. And the embedded bulge on the sealing cover plate is in interference fit in the mounting groove, so that the mounting groove is sealed. Static electricity is prevented from passing through the through hole at the bottom of the mounting recess. The sealing cover plate is also made of an insulating material.

15. The utility model provides a button switch seal structure, sealed apron orientation one side of switch bracket is stretched out and is had the protruding foot of at least one location, switch bracket top is equipped with and is used for the confession the protruding foot in location inserts complex cooperation jack.

The positioning convex feet play a role in installation and positioning, and when the positioning convex feet are inserted into the matching insertion holes in the switch bracket, the embedding bulges are just corresponding to the installation grooves.

16. The utility model provides a button switch seal structure, the protrusion of sealed apron side has spacing lug, be equipped with on the switch bracket and be used for the embedding spacing lug's spacing hole.

Because the embedding bulge of the sealing cover plate is in interference fit with the mounting groove, the embedding bulge can be elastically deformed due to friction resistance when being pressed into the mounting groove. The fitting projection has a tendency to move away from the mounting groove under the action of elastic force. The limiting convex block is matched with the limiting hole to prevent the embedded protrusion and the mounting groove from being separated from each other, and the sealing performance of the mounting groove is guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view showing a prior art push button switch mounting structure;

fig. 2 is a sectional view showing a sealing structure of a push button switch according to the present invention;

fig. 3 is an exploded view showing the sealing structure of the push button switch of the present invention;

fig. 4 is a perspective view showing an internal structure of the switch sheath;

FIG. 5 is a perspective view showing the structure of the sealing cap;

FIG. 6 is a perspective view showing a structure of a sealing cover plate;

fig. 7 is a perspective view showing a top structure of the switch bracket;

fig. 8 is a schematic view of an integrated structure of the fixing frame and the switch bracket.

Description of reference numerals:

1. a fixed mount; 11. a support base plate; 12. mounting a plate; 121. a limiting bulge; 122. a touch space; 13. A set screw; 14. a first mounting portion; 15. a second mounting portion; 16. positioning the convex ribs;

2. a switch bracket; 21. a support slot; 22. encircling the rib; 23. a threading slot; 24. installing a groove; 25. a mating jack; 26. a limiting hole;

3. a push button switch; 31. pressing the end;

4. a switch sheath; 41. caulking grooves; 411. supporting the positioning surface; 42. a sealing cover; 421. a planar portion; 422. An arcuate portion; 43. a covering part; 44. positioning the slot; 45. a abdication notch; 46. a mating recess;

5. sealing the cover plate; 51. a fitting projection; 52. positioning the convex feet; 53. and a limiting bump.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

The present embodiment provides a push switch sealing structure, as shown in fig. 1 and 2, including: the fixing frame 1 comprises a supporting bottom plate 11 and a mounting plate 12, wherein a touch space 122 for triggering the button switch 3 and a mounting part for mounting the switch bracket 2 are arranged on the mounting plate 12; the switch bracket 2 is arranged above the supporting bottom plate 11, connected to the fixed frame 1 and comprises a plurality of supporting clamping grooves 21 for accommodating the button switches 3; further comprising: the switch sheath 4 is arranged between the fixing frame 1 and the switch support 2, an insulation space for accommodating the button switch 3 is formed between the switch sheath 4 and the supporting clamping groove 21, and the switch sheath 4 is made of an insulation material. The switch sheath 4 is first isolated between the push-button switch 3 and the fixing frame 1 and isolates the push-button switch 3 in the supporting card slot 21. Since the switch sheath 4 is made of an insulating material, static electricity cannot enter the support notch 21 through the switch sheath 4, and therefore static electricity cannot accumulate on the push switch 3.

The connection relationship between the fixing frame 1 and the switch bracket 2 is not particularly limited, and in this embodiment, the fixing frame 1 and the switch bracket 2 are separately disposed. As an alternative embodiment, as shown in fig. 8, the fixing frame 1 and the switch bracket 2 are integrally formed, and in this case, the switch bracket 2 is a part of the fixing frame 1 and can be regarded as a supporting slot 21 disposed on the fixing frame 1.

In this embodiment, the fixing frame 1 and the switch bracket 2 may be separately disposed. The connection mode when mount 1, switch support 2 components of a whole that can function independently set up does not do specific restriction, and in this embodiment, as shown in fig. 2, switch support 2 passes through installation department demountable installation on mount 1, the installation department includes at least one set screw 13, set screw 13 pass in proper order switch support 2 with mount 1.

The number of the positioning screws 13 is not particularly limited, and in this embodiment, as shown in fig. 2, two positioning screws 13 are provided, and the two positioning screws 13 are respectively and correspondingly disposed at the upper and lower positions of the switch bracket 2. As an alternative embodiment, the set screw 13 may be one, the set screw 13 passing through the switch bracket 2 and fastening the switch bracket 2 to the fixing frame 1.

The material of the switch sheath 4 is not particularly limited, and the switch sheath is made of rubber in this embodiment. As an alternative embodiment, the switch sheath 4 may be made of PVC material, ceramic material.

The structure of the switch sheath 4 is not particularly limited, as shown in fig. 2, 4 and 5, the switch sheath 4 includes a sealing cover 42, the sealing cover 42 is disposed opposite to the pressing end 31 of the push button switch 3, the sealing cover 42 protrudes away from the push button switch 3, and the sealing cover 42 is made of an elastic material. The operation of the push switch requires a certain working space, and the sealing cover 42 protruding away from the push switch 3 reserves a space enough for the movement of the push switch 3. Since the sealing cap 42 is located in the actuating space 122 and protrudes toward the opening provided on the fixing frame 1. When the push switch 3 is activated from the opening, it is indirectly activated by pressing the seal cover 42. The sealing cover 42 made of an elastic material has a deformation capability, and the elastic material is elastically deformed when the push button switch 3 is pushed, so that the sealing cover 42 can still maintain the sealing and insulating functions during the push button switch 3 pushing process. As an alternative embodiment, the switch sheath 4 may be rectangular, a cavity for accommodating the push switch 3 is disposed inside, and a portion of the switch sheath 4 corresponding to the pressing end 31 is a plane.

The type of the material for manufacturing the switch sheath 4 is not specifically limited, in this embodiment, the entire switch sheath 4 is made of a rubber material, and as an alternative embodiment, the switch sheath 4 may be made of a plurality of different materials according to different functions of different parts, for example: the main body of the switch sheath 4 is made of ceramic and/or PVC material, and the sealing cover 42 and the covering part 43 are made of rubber material.

The shape and structure of the sealing cover 42 are not particularly limited, and in the present embodiment, as shown in fig. 5, the sealing cover 42 includes: a plane portion 421 disposed opposite to the push end 31; the arc-shaped part 422 is in arc-shaped transition connection with the plane part 421 and extends towards the direction far away from the plane part 421, and when the pressing end 31 is pressed, the arc-shaped part 422 is elastically deformed. The arc-shaped sealing cover 42 has a certain deformation capacity, and is made of an elastic material, so that the deformation capacity of the sealing cover 42 is further enhanced. As an alternative embodiment, the seal cap 42 is a semi-circle, or a shaped polyhedron in its entirety.

The thickness of each portion of the sealing cap 42 is not particularly limited, and in the present embodiment, as shown in fig. 2 and 5, the thickness of the flat portion 421 is not less than the thickness of the arc portion 422. Since the flat portion 421 is the main force-bearing portion when the button is touched, the thickness of the flat portion 421 is large, so as to meet the strength requirement when the button switch 3 is frequently pressed. As an alternative embodiment, the thickness of the planar portion 421 is less than the thickness of the arcuate portion 422. As another alternative, the thickness of the planar portion 421 is tapered in a direction approaching the curved portion 422.

The structure of the switch sheath 4 is not particularly limited, a covering portion 43 extends from one end of the switch sheath 4 facing the mounting plate 12, a limiting protrusion 121 extending towards the direction of the button switch 3 is arranged on the mounting plate 12, the limiting protrusion 121 forms the touch space, and the covering portion 43 is attached to and surrounds the limiting protrusion 121. Cladding portion 43 and spacing arch 121 mutually support and play location, limiting displacement, because sealed cowling 42 self has deformability, takes place natural deformation easily under the effect of gravity. The wrapping part 43 is just attached to the caliper on the limiting protrusion 121, and plays a role in lifting and pulling the sealing cover 42, so that the wrapping part 43 is prevented from being naturally deformed, and the protruding state is kept. As an alternative embodiment, the limiting protrusion 121 may be a continuous ring, or may be a plurality of ring structures that are surrounded at intervals to fit the limiting protrusion 121.

The specific position of the wrapping portion 43 is not limited, and as shown in fig. 2, the limiting protrusion 121 is disposed between the wrapping portion 43 and the sealing cover 42. The wrapping portion 43 serves to pull the sealing cap 42 up, so that the sealing cap 42 maintains an outwardly convex shape. And cladding portion 43 links to each other with sealed cowling 42, and the position clamp of linking to each other is located between switch support 2 and spacing arch 121, has further guaranteed the leakproofness of supporting draw-in groove 21, further prevents that static from getting into and adhering to on button switch 3. As an alternative embodiment, a gap between the sealing switch bracket 2 and the limit projection 121 may be separately provided.

The structure of the switch sheath 4 is not particularly limited, as shown in fig. 2, 4 and 5, a caulking groove 41 for embedding the button switch 3 is formed in the switch sheath 4, the caulking groove 41 is communicated with a sealing cover 42, and the switch bracket 2 is detachably mounted on the switch sheath 4. Switch bracket 2 covers from top to bottom and installs on switch sheath 4, and button switch 3 is located caulking groove 41, and switch bracket 2 is sealed with caulking groove 41 to the laminating of button switch 3 is contradicted in switch bracket 2's support draw-in groove 21.

The structure of the insertion groove 41 is not particularly limited, and as shown in fig. 4 and 5, a supporting and positioning surface 411 for supporting the push switch 3 is provided at a position of the bottom of the insertion groove 41 near the sealing cover 42. The supporting and positioning surface 411 plays a role of stable support, so that the button switch 3 can be flatly and stably placed in the caulking groove 41. Meanwhile, the supporting and positioning surface 411 plays a positioning role, and the push-button switch 3 placed on the supporting and positioning surface 411 has the push end 31 which just corresponds to the plane part 421 of the sealing cover 42.

The connection structure of the switch sheath 4 and the switch bracket 2 is not particularly limited, and as shown in fig. 3, 4 and 5, the switch sheath 4 and the switch bracket 2 extend out of insertion blocks and/or positioning slots 44 which are matched with each other. The inserted block and the slot that mutually support make things convenient for switch support 2 and switch sheath 4 inter combination, dismouting to the area of contact of the two lock has been improved, makes switch support 2 and switch sheath 4 inter combination inseparabler, has further improved switch sheath 4's leakproofness. As an alternative embodiment of the method according to the invention,

the matching structure of the switch bracket 2 and the switch sheath 4 is not specifically limited, in this embodiment, as shown in fig. 3, 4, and 5, a plurality of surrounding ribs 22 extend out of the switch bracket 2, the surrounding ribs 22 surround and are arranged around the supporting clamping groove 21, the positioning slot 44 is right aligned to the surrounding ribs 22, and the positioning slot 44 is attached to the side wall of the embedding groove 41.

The shape and structure of the surrounding rib 22 are not particularly limited, in this embodiment, as shown in fig. 3, the surrounding rib 22 is a sheet-shaped thin plate, and is inserted into the positioning slot 44 made of an elastic material, at this time, the surrounding rib 22 may be in interference fit, so that the tightness of the mutual combination of the surrounding rib 22 and the positioning slot 44 is improved, and the sealing performance of the switch sheath 4 is improved. The positioning slot 44 has a structure with a low middle part and two side walls which are high, and the two side walls are both attached to the surrounding rib 22, so that the sealing performance of the switch sheath 4 is further improved.

The positioning slot 44 and the surrounding rib 22 are respectively provided with a yielding notch 45 and a threading notch 23 which are oppositely arranged, and the yielding notch 45 and the threading notch 23 are just opposite to form a channel for a wiring to pass through. And a notch 45 for avoiding is reserved on the switch sheath 4, so that the lead is conveniently electrically connected with the switch.

The positioning structure of the switch sheath 4 is not particularly limited, and as shown in fig. 2 and 3, a portion of the switch sheath 4 facing the support base plate 11 is recessed to form a fitting recess 46 adapted to the first mounting portion 14. The fitting recess 46 of the switch sheath 4 can be fitted with the first fitting portion 14, so that the switch sheath 4 is supported on the support base plate 11 and the first fitting portion 14 smoothly. When mounted, the switch sheath 4 can be positioned by virtue of the mating relationship of the mating recess 46 with the first mounting portion 14. As an alternative embodiment, a plurality of support planes are provided at the bottom of the holder 1 for placing the switch housing 4.

The structure of the supporting base plate 11 is not particularly limited, and in this embodiment, as shown in fig. 2 and fig. 3, a positioning convex rib 16 is arranged on the supporting base plate 11, a positioning matching groove matched with the positioning convex rib 16 is arranged on the surface opposite to the switch sheath 4, and one end of the positioning convex rib 16 extends to the position of the mounting plate 12. The positioning convex rib 16 plays a role in positioning the switch sheath 4, and the positioning convex rib 16 extends and is connected with the mounting plate 12 to play a role in improving the structural strength, so that a stable integral structure supporting each other is formed between the supporting base plate 11, the mounting plate 12 and the switch bracket 2. As an alternative embodiment, a positioning notch may be provided, and a positioning foot adapted to the positioning notch may extend from the switch sheath 4, so that the positioning notch performs the functions of positioning and supporting.

As shown in fig. 2, 6, and 7, a sealing cover plate 5 is disposed on the top of the switch bracket 2, an engaging protrusion 51 protrudes from the sealing cover plate 5, and the engaging protrusion 51 is in interference fit with the mounting groove 24 on the top of the switch bracket 2. Since the top of the switch bracket 2 is provided with the mounting groove 24, the bottom of the mounting groove 24 is provided with a through hole communicated with the button switch 3. The static electricity entering along the through-hole and adhering to the push switch 3 also affects the operation of the main board. The sealing cover 5 provided in this embodiment thus covers the mounting recess 24 from the top of the switch bracket 2. And the fitting projection 51 of the sealing cover 5 is interference-fitted into the mounting groove 24 to seal the mounting groove 24. Static electricity is prevented from passing through the through-holes at the bottom of the mounting recess 24. The sealing cover plate 5 is also made of an insulating material.

The material of the sealing cover 5 is not particularly limited, and the sealing cover 5 is made of rubber in this embodiment. As an alternative, the sealing cover 5 may be made of PVC material, ceramic material.

The positioning structure of the sealing cover plate 5 is not particularly limited, as shown in fig. 2, 6 and 7, at least one positioning protruding leg 52 protrudes from one side of the sealing cover plate 5 facing the switch bracket 2, and the top of the switch bracket 2 is provided with a matching insertion hole 25 for inserting and matching the positioning protruding leg 52. The positioning protruding leg 52 plays a role in installation and positioning, and when the positioning protruding leg 52 is inserted into the matching insertion hole 25 on the switch bracket 2, it indicates that the fitting protrusion 51 exactly corresponds to the installation groove 24. As an alternative embodiment, the number of the positioning lugs 52 may be more than one, and the structure of the positioning lugs 52 itself may be an expansion screw.

The positioning structure of the sealing cover plate 5 is not particularly limited, and in this embodiment, as shown in fig. 2, 6, and 7, a limiting protrusion 53 protrudes from a side end of the sealing cover plate 5, and the switch bracket 2 is provided with a limiting hole 26 for inserting the limiting protrusion 53. Since the fitting projection 51 of the seal cover 5 is fitted into the mounting recess 24 with interference, the fitting projection 51 is elastically deformed by frictional resistance when being pressed into the mounting recess 24. The fitting projection 51 has a tendency to move away from the mounting groove 24 by the elastic force. The limit projection 53 is fitted to the limit hole 26 to prevent the fitting projection 51 from being disengaged from the mounting groove 24, thereby ensuring the sealing property of the mounting groove 24. As an alternative embodiment, a screw or a pressing plate stopper may be provided in the vertical direction to prevent the fitting projection 51 from being detached from the mounting groove 24 from above.

The type of the material for forming the sealing cover 5 is not particularly limited, in this embodiment, the sealing cover 5 is integrally made of a rubber material, as an alternative embodiment, the subject portion of the sealing cover 5 is made of a ceramic material, the engaging protrusion 51 is made of a rubber material, and the positioning protrusion 52 and the limiting protrusion 53 are made of a PVC material.

The application of the sealing structure of the push switch 3 is not particularly limited, and in the present embodiment, the sealing structure of the push switch 3 is used for an air purifier, particularly an ionization type air purifier. As an alternative embodiment, the sealing structure of the push-button switch 3 can also be applied to an ionization type purified fresh air system.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims (18)

1. A push button switch sealing structure comprising:

the fixing frame (1) comprises a supporting bottom plate (11) and a mounting plate (12), wherein a touch space (122) for triggering the button switch (3) is arranged on the mounting plate (12);

the switch bracket (2) is arranged above the supporting bottom plate (11) and on the fixed frame (1) and comprises a plurality of supporting clamping grooves (21) for accommodating the button switches (3);

it is characterized by also comprising:

the switch sheath (4) is arranged between the fixing frame (1) and the switch support (2), an insulation space used for containing the button switch (3) is formed between the switch sheath (4) and the supporting clamping groove (21), and the switch sheath (4) is made of an insulation material.

2. Push button switch sealing arrangement according to claim 1, characterized in that the switch sheath (4) comprises a sealing cover (42), the sealing cover (42) being arranged opposite the push end (31) of the push button switch (3), the sealing cover (42) being convex in a direction away from the push button switch (3), the sealing cover (42) being made of an elastic material.

3. The push button switch sealing structure according to claim 2, wherein the seal cover (42) includes:

a planar portion (421) disposed opposite to the push end (31);

and the arc-shaped part (422) is in arc-shaped transition connection with the plane part and extends towards the direction far away from the plane part (421), and when the pressing end is pressed, the arc-shaped part (422) is elastically deformed.

4. A push button switch sealing structure according to claim 3, characterized in that the thickness of the plane portion (421) is not smaller than the thickness of the arc portion (422).

5. A push button switch sealing structure according to claim 2, wherein a cladding (43) extends from one end of the switch sheath (4) facing the mounting plate (12), a limiting protrusion (121) extending towards the push button switch (3) is disposed on the mounting plate (12), the limiting protrusion (121) forms the contact space (122), and the cladding (43) fits and surrounds the cladding limiting protrusion (121).

6. The push button switch sealing structure according to claim 5, characterized in that the stopper protrusion (121) is provided between the cladding (43) and the seal cover (42).

7. The push button switch sealing structure according to claim 1, wherein a caulking groove (41) for embedding the push button switch (3) is provided on the switch sheath (4), the caulking groove (41) communicates with a sealing cover (42), and the switch bracket (2) is detachably mounted on the switch sheath (4).

8. The push button switch sealing structure according to claim 7, characterized in that a portion of the bottom of the caulking groove (41) near the sealing cover (42) is provided with a support positioning surface (411) for supporting the push button switch (3).

9. Push button switch sealing arrangement according to claim 7 or 8, characterized in that mutually cooperating insert blocks and/or positioning slots (44) extend out of the switch sheath (4) and the switch carrier (2).

10. The button switch sealing structure according to claim 9, wherein a plurality of surrounding ribs (22) extend from the switch bracket (2), the surrounding ribs (22) are arranged around the supporting clamping groove (21), the positioning slot (44) is arranged opposite to the surrounding ribs (22), and the positioning slot (44) is arranged to be attached to the side wall of the embedding groove (41).

11. The push button switch sealing structure according to claim 10, wherein the positioning slot (44) and the surrounding rib (22) are respectively provided with a yielding slot (45) and a threading slot (23) which are oppositely arranged, and the yielding slot (45) and the threading slot (23) are just opposite to form a passage for a wiring to pass through.

12. A push button switch sealing structure according to claim 1, characterized in that a portion of the switch sheath (4) facing the support base plate (11) is recessed to form a fitting recess (46) fitted to the first mounting portion (14).

13. A push button switch sealing structure according to any one of claims 1 to 8, characterized in that a positioning rib (16) is provided on the supporting base plate (11), a positioning fitting groove matched with the positioning rib (16) is provided on the opposite surface of the switch sheath (4), and one end of the positioning rib (16) extends to the position of the mounting plate (12).

14. A push button switch sealing structure according to any one of claims 1 to 8, characterized in that a sealing cover plate (5) is provided on the top of the switch bracket (2), the sealing cover plate (5) is protruded with an engaging projection (51), and the engaging projection (51) is interference-fitted in a mounting groove (24) on the top of the switch bracket (2).

15. A push button switch sealing structure according to claim 14, characterized in that at least one positioning lug (52) protrudes from the sealing cover plate (5) towards the side of the switch bracket (2), and the top of the switch bracket (2) is provided with a matching insertion hole (25) for inserting and matching the positioning lug (52).

16. A push button switch sealing structure according to claim 14, characterized in that a limit projection (53) projects from a side end of the sealing cover plate (5), and a limit hole (26) for embedding the limit projection (53) is provided on the switch bracket (2).

17. A push button switch sealing structure according to any one of claims 1 to 8, characterized in that the switch bracket (2) is detachably mounted on the fixing frame (1) by a mounting portion, the mounting portion including at least one set screw (13), the set screw (13) passing through the switch bracket (2) and the fixing frame (1) in sequence.

18. An air cleaner comprising a push button switch (3), wherein the push button switch (3) is sealed using the push button switch sealing structure according to any one of claims 1 to 15.

Images