Microswitch assembly of air purifier

Abstract

The utility model discloses a microswitch assembly of an air purifier, which comprises a switch support, and a microswitch is arranged in the switch support. The switch support is fixed to one end of an air duct shell of the air purifier, a guide hole is formed in the end, close to the switch support, of the air duct shell, an air inlet grille is installed on the air inlet face of the air duct shell and limits a filter screen in the air duct shell, a guide block is arranged at the end, close to the guide hole, of the air inlet grille, and the guide block is fixed to the air duct shell. The guide block passes through the guide hole so as to abut against an action elastic sheet of the microswitch. When the air inlet grille is installed in place, the guide block presses the action elastic piece to trigger the microswitch, and the air purifier is powered on to work. When the filter screen needs to be replaced and the air inlet grille is disassembled, the guide block is separated from the action elastic piece, the microswitch is closed, and the air purifier is powered off. According to the utility model, the air purifier can be automatically closed when the filter screen is replaced or detached, so that the safety of a user is effectively protected.

Description

Technical Field

[0001] The utility model belongs to the technical field of air purification, and in particular relates to a micro switch component of an air purifier. Background Art

[0002] With improved living standards, users' demands for a higher quality of living environment and growing safety awareness, air purifiers have become essential household appliances for addressing indoor air pollution and sterilization. However, due to the need for regular cleaning or replacement of the purification filter during use, users often need to install and remove the air purifier filter. During this process, some air purifiers may even continue to operate after the filter is removed, failing to effectively protect user safety.

[0003] Based on the above reasons, it is necessary to further study the protection switch of the existing air purifier in order to solve the above problems. Utility Model Content

[0004] The utility model provides a micro switch assembly for an air purifier, so as to solve the problem in the prior art that the air purifier still works during the process of installing and removing the filter, and cannot protect the safety of the user.

[0005] A micro switch assembly for an air purifier includes a switch bracket with a micro switch installed in the switch bracket; the switch bracket is fixed to one end of the air duct housing of the air purifier, the air duct housing is provided with a guide hole near the end of the switch bracket, the air inlet surface of the air duct housing is installed with an air inlet grille, the air inlet grille limits the filter screen in the air duct housing, the air inlet grille is provided with a guide block at one end near the guide hole, the guide block passes through the guide hole to abut against the action spring of the micro switch.

[0006] Preferably, a guide column extends in the switch bracket along an installation direction away from the micro switch to prevent the micro switch from being installed reversely.

[0007] Preferably, a limiting rib is provided in the switch bracket along a direction perpendicular to the installation direction of the micro switch to limit the micro switch.

[0008] Preferably, the switch bracket is provided with an insulating seesaw which moves in the same direction as the actuating elastic piece at a side close to the guide hole, and the guide block abuts against the seesaw to achieve abutment with the actuating elastic piece.

[0009] Preferably, the seesaw is in the shape of an elongated strip as a whole and abuts against the action spring piece, and the size of the movable end of the seesaw is larger than the size of the action spring piece; the mounting end of the seesaw is in a convex shape, and the head of the convex shape is provided with a mounting hole to cooperate and fix with the mounting column of the mounting bracket, and the shoulder of the convex shape abuts against the switch bracket along the mounting direction of the seesaw; the switch bracket is provided with a supporting rib near the mounting end of the seesaw.

[0010] Preferably, the switch bracket is provided with an inclined surface along the movement direction of the rocker, and a gap is left between the inclined surface and the action spring; when the air inlet grille is installed in place, the guide block presses the rocker to make the rocker move toward the inclined surface until the rocker abuts against the inclined surface.

[0011] Preferably, the mounting post is provided with a cut surface along the opening direction of the mounting hole.

[0012] Preferably, the guide block is provided with a rounded corner on a side close to the air inlet surface along the rotation direction of the air inlet grille when installed; and the air inlet grille is detachably fixed to the air duct housing at an end facing away from the guide block.

[0013] Preferably, the air duct housing is in a groove shape as a whole, and the filter is located in the groove of the air duct housing.

[0014] Preferably, the switch bracket is fixed to the air duct housing by screws.

[0015] The utility model has the following beneficial effects:

[0016] (1) The utility model can automatically shut down the air purifier when the filter is installed or removed, thereby effectively protecting the safety of the user.

[0017] (2) The micro switch assembly of the present invention has a simple structural design and can be installed in the switch bracket without screws or buckles, which is convenient for installation and saves material costs.

[0018] (3) The switch bracket of the present invention increases the force-bearing area of the action spring by using the insulating seesaw, which can effectively protect the micro switch and extend its service life; and the seesaw can cover the action spring inside the switch bracket, making the overall visual effect more beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without inventive work. In addition, in the drawings, the same reference numerals are used for the same components, and the drawings are not drawn to scale.

[0020] Figure 1 This is an assembly structure diagram of a micro switch assembly according to a specific embodiment of the present utility model;

[0021] Figure 2 This is a partially enlarged assembly structure diagram of a micro switch assembly according to a specific embodiment of the present utility model;

[0022] Figure 3 This is a structural diagram of a micro switch assembly according to a specific embodiment of the present utility model;

[0023] Figure 4 This is a structural diagram of the micro switch assembly of a specific embodiment of the utility model after removing the rocker plate;

[0024] Figure 5 This is a structural diagram of a switch bracket according to a specific embodiment of the present utility model;

[0025] Figure 6 This is a structural diagram of a seesaw according to a specific embodiment of the present invention.

[0026] Explanation of Figure Numbers

[0027] 100-Micro switch assembly of air purifier;

[0028] 110- switch bracket; 111- guide column; 112- limit rib; 113- mounting column; 114- support rib; 115- inclined plane; 1131- section;

[0029] 120-micro switch; 121-action shrapnel;

[0030] 130-rocker; 131-movable end; 132-mounting end; 1321-head; 1322-shoulder; 133-mounting hole;

[0031] 200- air duct housing; 210- guide hole;

[0032] 300-air inlet grille; 310-guide block; 311-rounded corner. DETAILED DESCRIPTION

[0033] To make the purpose, technical solutions, and advantages of the embodiments disclosed in this utility model more clear, the technical solutions in the embodiments of this utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of this utility model. Obviously, the embodiments described are part of the embodiments of this disclosure, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this utility model.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Specific embodiments

[0036] Please refer to Figures 1-6 The utility model provides a micro switch assembly 100 of an air purifier, including a switch bracket 110, in which a micro switch 120 is installed; the switch bracket 110 is fixed to one end of an air duct housing 200 of the air purifier, and the air duct housing 200 is provided with a guide hole 210 at one end near the switch bracket 110, and an air inlet grille 300 is installed on the air inlet surface of the air duct housing 200, and the air inlet grille 300 limits the filter screen in the air duct housing 200, and the air inlet grille 300 is provided with a guide block 310 at one end near the guide hole 210, and the guide block 310 passes through the guide hole 210 to abut against the action spring piece 121 of the micro switch 120.

[0037] Please refer to Figure 1-Figure 2In this embodiment, a micro switch 120 assembly is installed at one end of the air duct housing 200 of the air purifier, and an air inlet grille 300 is installed on the air inlet surface of the air duct housing 200. When the air purifier filter needs to be replaced, the air inlet grille 300 is installed and removed, so that the guide block 310 at one end of the air inlet grille 300 presses / disengages the action spring 121, thereby realizing the opening / closing of the micro switch 120. Specifically, when installing the air inlet grille 300, the guide block 310 at the bottom of the air inlet grille 300 is first inserted into the guide hole 210 at the bottom of the air duct housing 200. The air inlet grille 300 is then pushed along the top of the air inlet grille 300, so that the air inlet grille 300 rotates along a plane perpendicular to the rotation axis with a straight line parallel to its bottom surface as the rotation axis until the air inlet grille 300 is completely installed in the air duct housing 200. When the air inlet grille 300 is installed, the guide block 310 at the bottom of the air inlet grille 300 presses the actuating spring 121 of the micro switch 120, triggering the micro switch 120 and turning the air purifier on. When the air inlet grille 300 needs to be removed to replace the filter, the guide block 310 at the bottom of the air inlet grille 300 disengages from the actuating spring 121 of the micro switch 120, turning the micro switch 120 off and turning the air purifier off. Therefore, the present invention can automatically turn off the air purifier when the filter is replaced, effectively protecting the user's safety.

[0038] Please refer to Figure 3-Figure 4 In a more preferred embodiment, a guide post 111 extends from the switch bracket 110 along the installation direction away from the micro switch 120 to prevent the micro switch 120 from being installed reversely, making the installation process of the micro switch 120 simple and convenient.

[0039] In a more preferred embodiment, a limiting rib 112 is provided in the switch bracket 110 along a direction perpendicular to the installation direction of the micro switch 120 to limit the micro switch 120 to prevent the micro switch 120 from shifting. Figure 5 The limiting ribs 112 are distributed on the four side surfaces of the micro switch 120. When installing the micro switch 120, the micro switch 120 is embedded in the switch bracket 110 and fastened by the limiting ribs 112. The micro switch 120 assembly provided in this embodiment can be installed in the switch bracket 110 without screws or buckles, which facilitates installation and saves material costs.

[0040] In a more preferred embodiment, the switch bracket 110 is mounted with an insulating seesaw 130 on the side near the guide hole 210, which moves in the same direction as the actuating spring 121. The guide block 310 abuts against the seesaw 130, thereby abutting against the actuating spring 121. When the air inlet grille 300 is in place, the guide block 310 presses against the seesaw 130, which in turn presses against the actuating spring 121, thereby triggering the microswitch 120. At this point, the actuating spring 121 is subjected to force across its entire contact surface with the seesaw 130. This embodiment utilizes the insulating seesaw 130 to increase the force-bearing surface of the actuating spring 121, effectively protecting the microswitch 120 and extending its service life.

[0041] Please refer to Figure 6 In a more preferred embodiment, the seesaw 130 is elongated and abuts the actuating spring 121. The movable end 131 of the seesaw 130 is larger than the actuating spring 121. The mounting end 132 of the seesaw 130 is convex-shaped. The convex head 1321 is provided with a mounting hole 133 for mating with the mounting post 113 of the switch bracket. The convex shoulder 1322 abuts the switch bracket 110 along the installation direction of the seesaw 130. The switch bracket 110 is provided with a support rib 114 near the mounting end 132 of the seesaw 130. In this embodiment, the mounting hole 133 cooperates with the mounting post 113 to prevent the seesaw 130 from shifting along the installation direction. The support rib 114 supports the mounting end 132, preventing it from shifting along the movement direction of the seesaw 130. Furthermore, the seesaw 130 conceals the actuating spring 121 within the switch bracket 110, resulting in a more aesthetically pleasing overall appearance.

[0042] Please refer to Figure 4-Figure 5 In a preferred embodiment, the switch bracket 110 is provided with an inclined surface 115 along the direction of movement of the rocker 130, with a gap left between the inclined surface 115 and the actuating spring 121. When the air inlet grille 300 is in place, the guide block 310 presses the rocker 130 toward the inclined surface 115 until the rocker 130 abuts the inclined surface 115. In this embodiment, the addition of the inclined surface 115 in the direction of movement of the rocker 130 prevents excessive displacement of the rocker 130, which could damage or malfunction the micro switch 120.

[0043] In a more preferred embodiment, the mounting post 113 is provided with a cut surface 1131 along the opening direction of the mounting hole 133 , so that the mounting post 113 can be quickly inserted into the mounting hole 133 to facilitate the installation of the rocker 130 .

[0044] In a more preferred embodiment, the guide block 310 has a rounded corner 311 on the side close to the air inlet surface along the rotation direction of the air inlet grille 300 when installed; the air inlet grille 300 is detachably fixed to the air duct housing 200 at the end away from the guide block 310. In the conventional technical solution, the guide block 310 is square-shaped. When the air inlet grille 300 is installed, the air inlet grille 300 inserts the guide block 310 into the guide hole 210 at an inclined angle. At this time, one edge of the guide block 310 first contacts the rocker 130, so that the micro switch 120 is triggered before the air inlet grille 300 is installed in place, and the rocker 130 is subjected to excessive force, which can easily cause damage to the rocker 130 or indirectly cause excessive displacement of the action spring 121; in this embodiment, a rounded corner 311 is provided on one side of the guide block 310, which can avoid the situation where the edge of the guide block 310 presses the rocker 130 first during the installation process, until the air inlet grille 300 is installed in place, the bottom surface of the guide block 310 directly presses the rocker 130, so that the force area of the rocker 130 is larger.

[0045] In a more preferred embodiment, the air duct housing 200 is in a groove shape as a whole, the filter is located in the groove of the air duct housing 200, and the filter is adapted to the groove shape.

[0046] In a more preferred embodiment, the switch bracket 110 is fixed to the air duct housing 200 by screws.

[0047] The above are merely specific embodiments of the present invention, intended to enable those skilled in the art to understand and implement the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A micro switch assembly for an air purifier, characterized in that: The invention comprises a switch bracket (110), wherein a micro switch (120) is installed in the switch bracket (110); the switch bracket (110) is fixed to one end of an air duct housing (200) of an air purifier; the air duct housing (200) is provided with a guide hole (210) at one end close to the switch bracket (110); an air inlet grille (300) is installed on the air inlet surface of the air duct housing (200); the air inlet grille (300) limits the filter screen in the air duct housing (200); the air inlet grille (300) is provided with a guide block (310) at one end close to the guide hole (210); the guide block (310) passes through the guide hole (210) to abut against an action spring (121) of the micro switch (120).

2. The micro switch assembly of the air purifier according to claim 1, characterized in that: A guide post (111) extends in the switch bracket (110) along an installation direction away from the micro switch (120) to prevent the micro switch (120) from being installed in reverse.

3. The micro switch assembly of the air purifier according to claim 2, characterized in that: A limiting rib (112) is provided in the switch bracket (110) along a direction perpendicular to the installation direction of the micro switch (120) to limit the micro switch (120).

4. The micro switch assembly of the air purifier according to claim 1, characterized in that: The switch bracket (110) is provided with an insulating seesaw (130) on a side close to the guide hole (210) that moves in the same direction as the action spring (121), and the guide block (310) abuts against the seesaw (130) to achieve abutment with the action spring (121).

5. The micro switch assembly of the air purifier according to claim 4, characterized in that: The seesaw (130) is in the shape of an elongated strip as a whole and abuts against the action spring piece (121); the size of the movable end (131) of the seesaw (130) is larger than the size of the action spring piece (121); the mounting end (132) of the seesaw (130) is in the shape of a convex character; the head (1321) of the convex character is provided with a mounting hole (133) to cooperate and fix with the mounting column (113) of the switch bracket (110); the shoulder (1322) of the convex character abuts against the switch bracket (110) along the mounting direction of the seesaw (130); the switch bracket (110) is provided with a supporting rib (114) near the mounting end (132) of the seesaw (130).

6. The micro switch assembly of the air purifier according to claim 5, characterized in that: The switch bracket (110) is provided with an inclined surface (115) along the movement direction of the seesaw (130), and a gap is left between the inclined surface (115) and the action spring (121); when the air inlet grille (300) is installed in place, the guide block (310) presses the seesaw (130) to move the seesaw (130) toward the inclined surface (115) until the seesaw (130) abuts against the inclined surface (115).

7. The micro switch assembly of the air purifier according to claim 5, characterized in that: The mounting post (113) is provided with a cut surface (1131) along the opening direction of the mounting hole (133).

8. The micro switch assembly of the air purifier according to claim 1, characterized in that: The guide block (310) is provided with a rounded corner (311) on a side close to the air inlet surface along the rotation direction of the air inlet grille (300) when installed; the air inlet grille (300) is detachably fixed to the air duct housing (200) at an end facing away from the guide block (310).

9. The micro switch assembly of the air purifier according to claim 1, characterized in that: The air duct housing (200) is in a groove shape as a whole, and the filter is located in the groove of the air duct housing (200).

10. The micro switch assembly of the air purifier according to claim 1, characterized in that: The switch bracket (110) is fixed to the air duct housing (200) by screws.

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