A push button assembly and hair dryer

Abstract

This application discloses a push button assembly and a hair dryer. The push button assembly is applied to a handle with an internal adjustment switch, comprising: a push button disposed on the outside of the handle, the push button having a first engaging structure extending into the interior of the handle; and a slider disposed inside the handle and having a second engaging structure, the slider being configured to connect the push button and the adjustment switch; wherein, the push button is engaged with the slider through the cooperation between the first and second engaging structures, thereby pushing the trigger portion on the adjustment switch to slide linearly in the axial direction of the handle. Through the above method, the push button assembly of this application has the advantages of simple structure and convenient installation.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and in particular to push-button assemblies and hair dryers. Background Technology

[0002] Hair dryers dry air by producing air at a specific temperature. When the hair dryer is powered on, the motor drives the fan blades to rotate, drawing air in through the inlet. The air is then heated by the heating element and blown out through the outlet. The handle of the hair dryer has a push button that starts, stops, and adjusts the speed.

[0003] Existing hair dryer push buttons suffer from complex installation structures and inconvenient installation. Therefore, it is necessary to research a push button assembly and a hair dryer. Summary of the Invention

[0004] To address the shortcomings of the aforementioned technologies, this application provides a push button assembly and a hair dryer, which have the advantages of simple structure and convenient installation.

[0005] To solve the above-mentioned technical problems, the technical solution adopted in this application is:

[0006] A push button assembly is applied to a handle having an internal adjustment switch, comprising: a push button disposed on the outside of the handle, the push button having a first engaging structure extending into the interior of the handle; and a slider disposed inside the handle and having a second engaging structure, the slider being configured to connect the push button and the adjustment switch; wherein the push button is engaged with the slider through a cooperation between the first and second engaging structures to push a trigger portion on the adjustment switch to slide linearly in the axial direction of the handle.

[0007] Preferably, the first snap-fit ​​structure includes a snap-fit ​​portion, and the second snap-fit ​​structure includes a slot portion, wherein after the snap-fit ​​portion snaps into the slot portion, the push button has a translational degree of freedom to move along the axial direction of the handle.

[0008] Preferably, the push button is provided with a pair of latching parts, and the pair of latching parts have different widths in the axial direction of the handle.

[0009] Preferably, the latching portion includes an extension block with one end fixed to the push button and growing in an axial direction perpendicular to the handle, and a latch formed on the other end of the extension block; the slot portion includes a through hole for the extension block to pass through and a pair of stops formed on both sides of the through hole for the latching portion to be engaged; wherein, after the extension block is inserted into the through hole and the latch engages with the stops, the inner sidewall of the push button abuts against the outer sidewall of the handle.

[0010] Preferably, the inner wall of the push button is provided with a first rib distributed along the axial direction of the handle to reduce the contact area between the inner wall of the push button and the outer wall of the handle, wherein the rib is located on opposite sides of the buckle portion.

[0011] Preferably, the stop includes a first stop that engages with the buckle and a second stop that is inclined toward the first stop, wherein the first stop and the second stop are disposed facing each other, and after the buckle engages with the first stop, the second stop abuts against the extension block so that the extension block abuts against the first stop.

[0012] Preferably, the handle includes a handle housing that is hollow along its axial direction to form a receiving cavity, and a handle inner frame that is detachably disposed in the receiving cavity and supports the adjustment switch; wherein the handle inner frame is provided with an opening that matches the sliding member.

[0013] Preferably, the slider has symmetrically arranged side wings on its opposite sides, the side wings being configured to restrict the slider from moving in the width and thickness directions of the opening, wherein the length direction of the opening is parallel to the axial direction of the handle.

[0014] Preferably, the outer wall of the push button is formed with a protrusion that facilitates pushing it. The protrusion is distributed along the circumferential direction of the handle. The line connecting any point on the protrusion and any point on the trigger part forms an angle M with the axial direction of the handle. The value of the angle M is in the range of 20° to 70°.

[0015] To solve the above-mentioned technical problems, another technical solution adopted in this application is:

[0016] A hair dryer, including the push button assembly as described above.

[0017] Compared with the prior art, the advantages of this application are: the push button assembly and hair dryer provided by this application have the push button connected to the sliding part through the cooperation between the first snap-fit ​​structure and the second snap-fit ​​structure, thereby realizing the adjustment of the adjustment switch level, which has the advantages of simple structure and convenient installation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the handle in this application;

[0019] Figure 2 This is an exploded view of the handle in this application;

[0020] Figure 3 This is a cross-sectional view of the handle in this application;

[0021] Figure 4 yes Figure 3 A magnified structural diagram of region C in the middle;

[0022] Figure 5 This is a schematic diagram of the handle inner frame in the front view direction of this application;

[0023] Figure 6 This is a structural schematic diagram of the inner handle frame in this application from the rear view.

[0024] Figure 7 yes Figure 6 A magnified structural diagram of region B in the middle;

[0025] Figure 8 This is a schematic diagram of the handle inner frame and support component after installation in this application;

[0026] Figure 9 This is a partial exploded view of the electronic control board in this application;

[0027] Figure 10 This is an exploded view of the push button assembly in this application;

[0028] Figure 11 This is a schematic diagram of the slider in this application;

[0029] Figure 12 This is a schematic diagram showing the positional relationship between the first and second blocks in this application;

[0030] Figure 13 This is a cross-sectional view of the inner frame of the handle and the slider in this application;

[0031] Figure 14 yes Figure 13 Enlarged structural diagram of region A in the middle;

[0032] Figure 15 yes Figure 9 A cross-sectional schematic diagram;

[0033] Figure 16 This is an exploded view of the button component in this application from a downward viewing angle;

[0034] Figure 17 This is an exploded view of the button component in this application from a top-down perspective. Detailed Implementation

[0035] The present application will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description. If the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0036] In the description of this application, it should also be noted that, unless otherwise specified and limited, the terms "set" and "connection" should be interpreted more broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0037] Furthermore, if the term "and / or" appears in this application, it includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies both A and B. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0038] A hair dryer includes a blower and a handle located below the blower for support. The handle has a push-button assembly, which is used to turn the hair dryer on or off and to adjust the airflow speed. However, the installation structure of push-button assemblies on the market is complex and inconvenient to install.

[0039] In view of this, this application provides a push button assembly, please refer to... Figures 1 to 17 The push button assembly is applied to a hair dryer handle 100 having an internal adjustment switch 200, and includes: a push button 300 disposed on the outside of the handle 100, the push button 300 having a first snap-fit ​​structure extending into the interior of the handle 100; and a slider 400 disposed inside the handle 100 and having a second snap-fit ​​structure, the slider 400 being configured to connect the push button 300 and the adjustment switch 200; wherein, the push button 300 is snapped into the slider 400 through the cooperation between the first snap-fit ​​structure and the second snap-fit ​​structure, so as to push the trigger portion 210 on the adjustment switch 200 to slide linearly in the axial direction of the handle 100.

[0040] In the above manner, the push button 300 in this application is connected to the sliding member 400 through the cooperation between the first snap-fit ​​structure and the second snap-fit ​​structure, thereby realizing the adjustment of the gear position of the adjustment switch 200, which has the advantages of simple structure and convenient installation.

[0041] In this embodiment, the handle 100 includes a handle housing 110 and a handle inner frame 120. The handle housing 110 is hollow along its axial direction to form a receiving cavity. The handle inner frame 120 is detachably disposed in the receiving cavity and supports an electronic control board. The electronic control board is provided with an adjustment switch 200 and a push switch 800. The adjustment switch 200 has the functions of turning the hair dryer on and off and adjusting the hair dryer speed. Turning on and off specifically refers to two states: open and closed. The speed adjustment includes two levels: a fast level and a slow level.

[0042] For further information, please refer to [link / reference]. Figure 9 and Figure 10 The first locking structure includes a latching part 310, and the second locking structure includes a locking groove part 410. After the latching part 310 engages with the locking groove part 410, the push button 300 only has a translational degree of freedom to move along the axial direction of the handle 100. Therefore, the push button 300 has a predetermined sliding trajectory, which avoids the problem of the push button 300 failing to slide smoothly due to shaking during movement.

[0043] Furthermore, to improve installation efficiency and accuracy, please refer to [link / reference needed]. Figure 12 A pair of latching parts 310 are provided on the push button 300, and the width of the pair of latching parts 310 in the axial direction of the handle 100 is different. Therefore, because the latching parts 310 have different dimensions, the installation position can be quickly distinguished, effectively improving the efficiency and accuracy of installation, and providing the advantage of convenient installation.

[0044] Specifically, please refer to Figure 10 The latching part 310 includes an extension block 311 with one end fixed to the push button 300 and growing in an axial direction perpendicular to the handle 100, and a latch 312 formed on the other end of the extension block 311. The slot part 410 includes a through hole 411 for the extension block 311 to pass through, and a pair of stops formed on both sides of the through hole 411 for the latching part 310 to engage. The handle 100 has a sliding groove 150 formed on its side wall for the extension block 311 to pass through and slide. The sliding groove 150 is distributed along the axial direction of the handle 100, and the latch 312 is located inside the handle 100. After the extension block 311 is inserted into the through hole 411 and the latch 312 engages with the stops, the inner side wall of the push button 300 abuts against the outer side wall of the handle 100. Thus, the push button 300 can only move along the axial direction of the handle 100, thereby giving the push button 300 a predetermined movement trajectory and providing the advantage of stable and reliable connection.

[0045] Considering that if the entire inner wall of the push button 300 abuts against the outer wall of the handle 100, a large frictional resistance would be generated between the push button 300 and the outer wall of the handle 100 during movement, a first rib 320 distributed along the axial direction of the handle 100 is provided on the inner wall of the push button 300. (See also...) Figure 10 The ribs 320 are located on opposite sides of the buckle portion 310 to reduce the contact area between the inner wall of the push button 300 and the outer wall of the handle 100, thereby reducing the frictional resistance when the push button 300 moves.

[0046] Specifically, please refer to Figure 12 The stop includes a first stop 412 that engages with the latch 312 and a second stop 413 that is inclined toward the first stop 412. The first stop 412 and the second stop 413 are arranged facing each other. After the latch 312 engages with the first stop 412, the second stop 413 abuts against the extension block 311, so that the extension block 311 abuts against the first stop 412. Thus, the stop makes the connection between the push button 300 and the slider 400 more stable and reliable.

[0047] For further information, please refer to [link / reference]. Figure 2 and Figure 5 The inner frame 120 of the handle is also provided with an opening 121 that matches the slider 400. The inner wall of the slider 400 near the adjustment switch 200 is provided with a protruding frame 430, which is located inside the opening 121 and is used to connect the trigger part 210. The opening 121 facilitates the connection between the slider 400 and the trigger part 210 of the adjustment switch 200, and also limits the sliding stroke of the slider 400.

[0048] Furthermore, to ensure that the slider 400 has translational freedom only in the axial direction of the handle 100 and no kinematic freedom in other directions, side wings 420 are symmetrically arranged on the opposite sides of the slider 400. An arched placement space, wider in the middle and narrower on both sides, is formed between the arcuate inner wall of the handle housing 110 and the handle inner frame 120. Please refer to [reference needed]. Figure 13 and Figure 14 The aforementioned bow-shaped placement space and side wings 420 restrict the movement of the slider 400 in the width and thickness directions of the opening 121, thus ensuring that the slider 400 can only translate along the length direction of the opening 121, which is parallel to the axial direction of the handle 100. A second rib 421 is also provided on the wall surface where the side wings 420 mate with the inner frame 120 of the handle. The second rib 421 reduces the frictional resistance between the side wings 420 and the inner frame 120 of the handle during movement. Therefore, the side wings 420 allow the slider 400 to slide smoothly along a predetermined sliding trajectory.

[0049] Furthermore, to facilitate pushing the push button 300, in this embodiment, a protrusion 330 is formed on the outer wall of the push button 300 to facilitate pushing it. The protrusion 330 is distributed along the circumferential direction of the handle 100. The line connecting any point on the protrusion 330 and any point on the trigger part 210 forms an angle M with the axial direction of the handle 100. The value of the angle M is in the range of 20° to 70°. The value of the angle M can be 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, and 65°. The angle M is selected within the above range so that the push button 300 can be pushed even with a small force, effectively improving the comfort of use.

[0050] In this embodiment, a hair dryer button assembly is also provided on the handle 100. This assembly is used to switch the operating state of the press switch 800, thereby adjusting the air temperature of the hair dryer. Please refer to [link / reference]. Figure 3 and Figure 4 The hair dryer button assembly includes: a support member 600 disposed inside the handle 100, the support member 600 having a first connecting structure 610, and the handle 100 having a second connecting structure 130 cooperating with the first connecting structure 610; and a button 500 disposed on the support member 600, the button 500 having a locking structure 510 to prevent it from disengaging from the support member 600; wherein, after the support member 600 is engaged with the handle 100 through the cooperation between the first connecting structure 610 and the second connecting structure 130, and the button 500 is engaged with the support member 600 through the locking structure, there are reserved gaps between the button 500 and the support member 600 and between the button 500 and the outer wall of the handle 100, the reserved gaps are configured to prevent the button 500 from jamming in the pressing direction perpendicular to the axial direction of the handle 100. In the above manner, the button 500 in this application is disposed on the handle 100 by the support member 600, and there is a reserved gap between the button 500 and the support member 600 and between the button 500 and the outer wall of the handle 100. Thus, the button 500 and the support member 600 have good alignment, thereby ensuring that the button 500 is not easy to get stuck.

[0051] For further information, please refer to [link / reference]. Figure 17 The first connecting structure 610 includes a first axial locking structure 611 and a first circumferential positioning structure 612; please refer to Figure 7The second connecting structure 130 is disposed on the inner frame 120 of the handle, including a second axial locking structure 131 that cooperates with the first axial locking structure 611 and a second circumferential positioning structure 132 that cooperates with the first circumferential positioning structure 612. The cooperation between the first axial locking structure 611 and the second axial locking structure 131 enables axial positioning and connection between the support member 600 and the handle 100; the cooperation between the first circumferential positioning structure 612 and the second circumferential positioning structure 132 enables circumferential positioning between the support member 600 and the handle 100. Thus, the support member 600 can be effectively installed on the handle 100, providing a stable and reliable connection.

[0052] Specifically, the first axial locking structure 611 includes a first shoulder 6111 and a second shoulder 6112 formed on the outer circumferential wall of the support member 600, wherein the first shoulder 6111 is disposed near the button 500, and the second shoulder 6112 is disposed away from the button 500. The second axial locking structure 131 includes a mounting hole 1311 formed in the inner frame 120 of the handle, a shoulder 1312 formed in the wall of the mounting hole 1311 and engaging with the first shoulder 6111, and a hook 1313 engaging with the second shoulder 6112, wherein the shoulder 1312 and the hook 1313 are respectively located at opposite ends of the mounting hole 1311. Please refer to Figure 17 To facilitate the engagement of the hook 1313 with the second shoulder 6112, the outer circumferential wall of the support member 600 is provided with guide grooves 6113 distributed along its axial direction. Specifically, the guide grooves 6113 are distributed along the direction from the first shoulder 6111 to the second shoulder 6112. The starting end of the guide groove 6113 has an inlet formed on the first shoulder 6111, and the ending end has a gap with the second shoulder 6112. By providing the guide grooves 6113, the hook 1313 can pass over the first shoulder 6111 and then engage with the second shoulder 6112.

[0053] In this embodiment, for ease of positioning, the first circumferential positioning structure 612 is configured as a protrusion formed on the first shoulder 6111 and growing radially thereon; the second circumferential positioning structure 132 is configured as a groove formed on the edge of the mounting hole 1311. During installation, simply aligning the protrusion with the groove is sufficient to complete the circumferential positioning, which has the advantages of simple structure, convenient alignment, and easy installation.

[0054] For further information, please refer to [link / reference]. Figure 16 and Figure 17The button 500 also includes a pressing block 520 connected to a locking structure 510 and exposed on the outer wall of the handle 100. The pressing block 520 has a rib 530 at the center of its inner end face for pressing to trigger the pressing switch 800. The locking structure 510 includes at least one connecting leg 511 disposed on the pressing block 520 and a button latch 512 formed on the end of the connecting leg 511. The connecting leg 511 is disposed on the inner end face of the pressing block 520 and distributed along the pressing direction of the button 500. The pressing block 520 and the button latch 512 are located on opposite sides of the connecting leg 511. The support member 600 is hollow inside and open at both ends to form a cavity that runs through it. A partition 620 is formed inside the cavity and is perpendicular to its axial direction. The partition 620 is provided with a through slot 621 for the connecting leg 511 to pass through. After the connecting leg 511 passes through the through slot 621, the button buckle 512 of the locking structure 510 engages with the partition 620, thereby realizing the connection between the button 500 and the support member 600. The partition 620 is also provided with a through hole 622, which allows the reinforcing rod 530 to pass through to the side of the push switch 800 and engage with it. An elastic element 700 is also provided between the button 500 and the support member 600. The elastic element 700 is sleeved on the rib 530 and located in the area enclosed by the partition 620 and the button 500. One end face of the elastic element 700 abuts against the pressing block 520, and the other end face abuts against the partition 620 to provide the reset force of the button 500. A button hole 140 for accommodating the pressing block 520 is provided on the side wall of the handle housing 110. When the pressing block 520 is in the reset state, the outer end face of the pressing block 520 is flush with the side wall of the handle housing 110, slightly protruding from the side wall of the handle housing 110, or slightly concave to the side wall of the handle housing 110.

[0055] In this embodiment, please refer to Figure 3 and Figure 4 The reserved gap between the button 500 and the outer wall of the handle 100 is the annular external gap X2 between the outer circumferential wall of the pressing block 520 and the hole wall of the button hole 140. The reserved gap between the button 500 and the support 600 is the annular mounting gap X1 between the connecting leg 511 and the cavity wall of the support 600.

[0056] Furthermore, the pressing block 520 includes a base with a molded cover groove 521 and a light-blocking button cover 522 fastened within the cover groove 521. The base of the pressing block 520 is made of a light-transmitting material to form a ring-shaped light strip around the button cover 522. In this embodiment, an LED colored light is also provided on the control board. Each time the button 500 triggers the press switch 800, the color of the LED colored light changes accordingly, with different colors representing different air temperatures. The pressing block 520 base, the locking structure 510, and the support member 600 are all made of transparent light-transmitting material, allowing them to change with the color of the LED colored light, thus enabling the air temperature to be judged by the color of the ring-shaped light strip. This design is convenient to use and aesthetically pleasing.

[0057] Understandably, the push button component in this application can be applied to different use cases, as illustrated below.

[0058] The push-button assembly of this application can be applied to a hair dryer, which includes the push-button assembly, a handle 100 on which the push-button assembly is provided, and a fan located above and connected to the handle 100. Along the direction from the fan inlet to the fan outlet, the fan interior sequentially includes an air inlet shroud, a fan wheel, a motor, a heating element assembly, and an air outlet shroud. The push-button assembly can control the opening and closing of the motor and heating element assembly, as well as adjust the motor speed, via an adjustment switch 200.

[0059] It is understood that the above specific applications are merely illustrative examples of the push button assembly in this application, and those skilled in the art can make adaptive adjustments according to the actual situation, which will not be elaborated here.

[0060] In summary, the push button in this application is engaged with the sliding member through the cooperation of the first and second locking structures, thereby realizing the adjustment of the switch position. By differentiating the widths of the pair of latching parts, the efficiency and accuracy of installation are improved. A first rib distributed along the handle's axial direction is provided on the inner wall of the push button to reduce the contact area between the inner wall of the push button and the outer wall of the handle, thus reducing the frictional resistance when the push button moves. In this application, the line connecting any point on the convex rib and any point on the trigger part forms an angle M with the handle's axial direction, allowing the push button to be pushed even with a small force, effectively improving user comfort. The button in this application is mounted on the handle via a support member, and there are reserved gaps between the button and the support member, and between the button and the outer wall of the handle. Therefore, the button and the support member have good alignment, ensuring that the button is not easily jammed.

[0061] Although the embodiments of this application have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this application. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this application is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A push-button assembly applied to a handle with an internal adjustment switch, characterized in that, include: A push button, disposed on the outside of the handle, has a first engaging structure extending into the interior of the handle. The first engaging structure includes a pair of latching portions spaced apart from the edge of the push button, the pair of latching portions having different widths in the axial direction of the handle; and A slider is disposed inside the handle and has a second snap-fit ​​structure; the slider is configured to connect the push button and the adjustment switch. The push button is engaged with the slider through the cooperation between the first and second locking structures, so as to push the trigger part on the adjustment switch to slide linearly in the axial direction of the handle.

2. The push button assembly as claimed in claim 1, characterized in that, The second snap-fit ​​structure includes a slot portion, wherein, after the snap-fit ​​portion snaps into the slot portion, the push button has a translational degree of freedom to move along the axial direction of the handle.

3. The push button assembly as described in claim 2, characterized in that, The latching part includes an extension block with one end fixed to the push button and growing in an axial direction perpendicular to the handle, and a latch formed at the other end of the extension block. The slot includes a through hole for the extension block to pass through and a pair of blocks formed on both sides of the through hole for the buckle to engage. Wherein, after the extension block is inserted into the through hole and the buckle is engaged with the stop block, the inner sidewall of the push button abuts against the outer sidewall of the handle.

4. The push button assembly as described in claim 3, characterized in that, The inner wall of the push button is provided with a first rib distributed along the axial direction of the handle to reduce the contact area between the inner wall of the push button and the outer wall of the handle, wherein the rib is located on opposite sides of the buckle portion.

5. The push button assembly as described in claim 3, characterized in that, The stop block includes a first stop block that engages with the buckle and a second stop block that is inclined toward the first stop block. The first stop block and the second stop block are arranged facing each other. After the buckle engages with the first stop block, the second stop block abuts against the extension block so that the extension block abuts against the first stop block.

6. The push button assembly as claimed in claim 1, characterized in that, The handle includes a handle housing that is hollow along its axial direction to form a receiving cavity, and a handle inner frame that is detachably disposed in the receiving cavity and supports the adjustment switch; wherein the handle inner frame is provided with an opening that matches the sliding member.

7. The push button assembly as claimed in claim 6, characterized in that, The slider has symmetrically arranged side wings on its opposite sides. The side wings are configured to restrict the slider from moving in the width and thickness directions of the opening, wherein the length direction of the opening is parallel to the axial direction of the handle.

8. The push button assembly as claimed in claim 1, characterized in that, The outer wall of the push button is formed with a protrusion that facilitates pushing it. The protrusion is distributed along the circumferential direction of the handle. The line connecting any point on the protrusion and any point on the trigger part forms an angle M with the axial direction of the handle. The value of the angle M ranges from 20° to 70°.

9. A hair dryer, characterized in that, Includes the push button assembly as described in any one of claims 1 to 8.

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