Magnetic attraction key structure and mobile power supply equipment

Abstract

The utility model provides a magnetic attraction key structure and mobile power supply equipment. The magnetic attraction key structure comprises a key body and a magnetic attraction assembly. The key body comprises a convex key and a limiting baffle plate; the protruding key is located on one side of the limiting baffle and used for being movably positioned in the through hole, and the other side of the limiting baffle is used for abutting against a microswitch of the circuit board. The magnetic attraction assembly comprises a first magnetic part and a second magnetic part; one of the first magnetic piece and the second magnetic piece is embedded in the limiting baffle, and the other one of the first magnetic piece and the second magnetic piece is used for being embedded in the main shell. According to the utility model, the magnetic button structure does not need to adopt a hot melting connection mode, so that the internal space of the mobile power supply equipment is well saved; through the magnetic action between the first magnetic piece and the second magnetic piece, the limiting baffle of the key body is attracted to be tightly attached to the inner wall of the main shell, accurate and rapid assembly of the key body is achieved, and therefore the assembly convenience of the magnetic attraction key structure is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of button structures of electronic devices, in particular to a magnetic attraction button structure and a mobile power supply device. Background Art

[0002] Buttons are one of the main components of consumer electronic products, such as mobile power supply devices, computers, digital cameras, etc.

[0003] Among them, with the rapid update and iteration of mobile power supply devices, the existing mainstream button structures still use the hot-melt method to connect the components of the button structure. This connection method requires more structural space, making the limited structural space inside the mobile power supply device more compact, resulting in poor assembly convenience of the buttons. Moreover, the hot-melt connection method is prone to the situation of incomplete hot-melting and causes the problem of stuck keys. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a magnetic attraction button structure and a mobile power supply device that do not require the hot-melt connection method, thereby better saving the internal space of the mobile power supply device and effectively improving the assembly convenience of the buttons.

[0005] The purpose of the utility model is achieved by the following technical solutions:

[0006] A magnetic attraction button structure is used to be installed in a through hole of a main housing of a mobile power supply device. The magnetic attraction button structure includes:

[0007] A button body, including a convex key and a limiting baffle; the convex key is located on one side of the limiting baffle, the convex key is used for being movably positioned in the through hole, and the other side of the limiting baffle is used for abutting against a micro switch of a circuit board.

[0008] A magnetic attraction assembly, including a first magnetic member and a second magnetic member with opposite polarities; one of the first magnetic member and the second magnetic member is embedded on the limiting baffle, the other of the first magnetic member and the second magnetic member is used for being embedded in the main housing, and the projection surface of the first magnetic member partially overlaps with the projection surface of the second magnetic member, so that the button body fits against the main housing. The projection surface is a plane perpendicular to the sliding direction of the convex key.

[0009] In one embodiment, the first magnetic member is embedded on the limiting baffle, and the second magnetic member is used for being embedded in the main housing.

[0010] In one embodiment, the limiting baffle is coated with glue on the outer peripheral wall of the first magnetic member; and / or,

[0011] The first magnetic member is cylindrical; and / or,

[0012] The number of the first magnetic members is multiple, and the multiple first magnetic members are arranged along the periphery of the limiting baffle.

[0013] In one embodiment, the projected area of the limiting baffle on the projection plane is larger than the projected area of the convex key on the projection plane, and the projection plane is a plane perpendicular to the sliding direction of the convex key.

[0014] A mobile power device includes the magnetic attraction key structure described in any of the above embodiments. The mobile power device further includes a main housing, an upper shell cover plate, and a circuit board. The main housing is provided with a through hole, the upper shell cover plate is covered on the main housing, the main housing and the upper shell cover plate jointly enclose a battery inner cavity, the through hole is communicated with the battery inner cavity, and the circuit board is fixedly installed in the battery inner cavity.

[0015] In one embodiment, the upper shell cover plate is snap-connected to the main housing.

[0016] In one embodiment, a pressing convex portion protrudes from a side of the limiting baffle facing away from the convex key, and the pressing convex portion abuts against a micro switch.

[0017] In one embodiment, the upper shell cover plate is provided with a first limiting rib and a second limiting rib. Both the first limiting rib and the second limiting rib are located in the battery inner cavity, both the first limiting rib and the second limiting rib are located on the other side of the limiting baffle, and the first limiting rib and the second limiting rib respectively abut against both sides of the pressing convex portion; and / or,

[0018] The limiting baffle is provided with a structural groove, and a part of the pressing convex portion is clamped into the structural groove.

[0019] In one embodiment, the through hole is correspondingly arranged with the micro switch of the circuit board.

[0020] In one embodiment, the mobile power device further includes a battery module, the battery module is fixedly installed in the battery inner cavity, and the circuit board is electrically connected to the battery module.

[0021] Compared with the prior art, the present utility model has at least the following advantages:

[0022] 1. By embedding one of the first magnetic member and the second magnetic member on the limiting baffle, and embedding the other of the first magnetic member and the second magnetic member on the main housing, a magnetic force of attraction is generated between the first magnetic member and the second magnetic member.

[0023] 2. The above magnetic attraction button structure does not need to adopt a hot melting connection method, which saves the internal space of the mobile power device better.

[0024] 3. The assembler only needs to simply align the convex button with the through hole, that is, through the magnetic force between the second magnetic part and the first magnetic part, to make the limiting baffle of the button body be attracted and closely attached to the inner wall of the main housing, and the other side of the limiting baffle abuts against the micro switch on the circuit board, realizing the precise and rapid assembly of the button body. In this way, the assembly convenience of the magnetic attraction button structure is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained according to these drawings without creative efforts.

[0026] Figure 1 It is a schematic structural diagram of the magnetic attraction button structure in an embodiment;

[0027] Figure 2 is Figure 1 the schematic assembly structure diagram of the shown magnetic attraction button structure;

[0028] Figure 3 It is a partial structural explosion diagram of the mobile power device in an embodiment;

[0029] Figure 4 is Figure 3 the structural cross-sectional view of the shown mobile power device;

[0030] Figure 5 is Figure 4 the enlarged structural diagram of part A of the shown mobile power device;

[0031] Reference numerals: magnetic attraction button structure 10; mobile power device 20; button body 100; convex button 110; limiting baffle 120; structural groove 1201; pressing convex part 1210; magnetic attraction assembly 200; first magnetic part 210; second magnetic part 220; main housing 300; through hole 301; battery inner cavity 302; upper shell cover plate 400; first limiting convex strip 410; second limiting convex strip 420; circuit board 500; micro switch 510; battery module 600. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present utility model are shown in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present utility model more thorough and comprehensive.

[0033] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0035] The present disclosure provides a magnetic button structure installed in a through hole of a main housing of a mobile power device. The magnetic button structure includes a button body and a magnetic attraction assembly. The button body includes a convex key and a limiting baffle; the convex key is located on one side of the limiting baffle, the convex key is used for being movably positioned in the through hole, and the other side of the limiting baffle is used for abutting against a micro switch of a circuit board; the magnetic attraction assembly includes a first magnetic member and a second magnetic member with opposite polarities; one of the first magnetic member and the second magnetic member is embedded in the limiting baffle, and the other of the first magnetic member and the second magnetic member is used for being embedded in the main housing. The projection surface of the first magnetic member partially overlaps with the projection surface of the second magnetic member, so that the button body fits against the main housing, and the projection surface is a plane perpendicular to the sliding direction of the convex key.

[0036] Please refer to Figures 1 to 5 , for a better understanding of the magnetic button structure 10 of the present application, the following further explains the magnetic button structure 10:

[0037] The magnetic attraction button structure 10 of an embodiment is installed in the through hole 301 of the main housing 300 of the mobile power device 20. The magnetic attraction button structure 10 includes a button body 100 and a magnetic attraction component 200. The button body 100 includes a convex key 110 and a limiting baffle 120; the convex key 110 is located on one side of the limiting baffle 120, the convex key 110 is used for being movably positioned in the through hole 301, and the other side of the limiting baffle 120 is used for abutting against the micro switch 510 of the circuit board 500; the magnetic attraction component 200 includes a first magnetic member 210 and a second magnetic member 220 with opposite polarities; one of the first magnetic member 210 and the second magnetic member 220 is embedded on the limiting baffle 120, and the other of the first magnetic member 210 and the second magnetic member 220 is used for being embedded in the main housing 300. The projection surface of the first magnetic member 210 partially overlaps with the projection surface of the second magnetic member 220, so that the button body 100 fits against the main housing 300. The projection surface is a plane perpendicular to the sliding direction of the convex key 110.

[0038] In this embodiment, by embedding one of the first magnetic member 210 and the second magnetic member 220 on the limiting baffle 120, and the other of the first magnetic member 210 and the second magnetic member 220 is used for being embedded in the main housing 300, a magnetic attraction force that attracts each other is generated between the first magnetic member 210 and the second magnetic member 220. The magnetic attraction button structure 10 of the present utility model does not need to adopt a hot melting connection method, which better saves the internal space of the mobile power device 20; at the same time, the assembler only needs to simply align the convex key 110 with the through hole 301, that is, through the magnetic force between the second magnetic member 220 and the first magnetic member 210, to cause the limiting baffle 120 of the button body 100 to be attracted and closely attached to the inner wall of the main housing 300, and the other side of the limiting baffle 120 abuts against the micro switch 510 of the circuit board 500, realizing the precise and rapid assembly of the button body 100, thus effectively improving the assembly convenience of the magnetic attraction button structure 10.

[0039] It should be supplemented and explained that in this embodiment, the first magnetic member 210 and the second magnetic member 220 are specifically magnets. And, the micro switch 510 of the circuit board 500 belongs to the prior art. The micro switch 510 has the ability to elastically recover after being pressed, and its working principle will not be elaborated.

[0040] Such as Figure 1 and Figure 2As shown, in one embodiment, the first magnetic member 210 is embedded in the limit baffle 120, and the second magnetic member 220 is used to be embedded in the main housing 300. In one embodiment, the limit baffle 120 is coated on the outer peripheral wall of the first magnetic member 210. In one embodiment, the first magnetic member 210 is cylindrical. In one embodiment, the number of the first magnetic members 210 is multiple, and the multiple first magnetic members 210 are arranged along the periphery of the limit baffle 120.

[0041] It can be understood that in this embodiment, the key body 100 is an integrally formed injection molded part. Therefore, before the key body 100 is injection molded, multiple cylindrical first magnetic members 210 can be positioned in the molding cavity, so that when the injection glue is filled in the molding cavity, it can fully coat the outer peripheral wall of each first magnetic member 210.

[0042] It should be noted that in this embodiment, the first magnetic member 210 is embedded in the limit baffle 120, while the second magnetic member 220 is embedded in the main housing 300; it can be understood that in other embodiments, the embedding positions of the first magnetic member 210 and the second magnetic member 220 are opposite. For example, in another embodiment, the second magnetic member 220 is embedded in the limit baffle 120, while the first magnetic member 210 is embedded in the main housing 300. In this way, the limit baffle 120 of the key body 100 can still be attracted and closely attached to the inner wall of the main housing 300 through the magnetic force between the second magnetic member 220 and the first magnetic member 210.

[0043] As Figure 1 and Figure 2 shown, in one embodiment, the projected area of the limit baffle 120 on the projection plane is larger than the projected area of the convex key 110 on the projection plane, and the projection plane is a plane perpendicular to the sliding direction of the convex key 110. In this way, the sliding of the convex key 110 is limited by the limit baffle 120.

[0044] It should be added that as Figure 2 shown, the direction indicated by the X double-headed arrow is the sliding direction of the convex key 110.

[0045] Please refer to Figures 2 to 5, this application also provides a mobile power device 20, including the magnetic suction key structure 10 described in any of the above embodiments. The mobile power device 20 further includes a main housing 300, an upper shell cover plate 400, and a circuit board 500. The main housing 300 is provided with a through hole 301. The upper shell cover plate 400 is covered on the main housing 300. The main housing 300 and the upper shell cover plate 400 jointly enclose a battery inner cavity 302. The through hole 301 is communicated with the battery inner cavity 302. The circuit board 500 is fixedly installed in the battery inner cavity 302.

[0046] In this embodiment, the above-mentioned mobile power device 20 applies the magnetic suction key structure 10, so that the power button of the mobile power device 20 has better assembly convenience and assembly efficiency.

[0047] As Figure 3 shown, in one embodiment, the upper shell cover plate 400 is snap-connected to the main housing 300, so that the upper shell cover plate 400 and the main housing 300 can be quickly assembled.

[0048] As Figures 1 to 5 shown, in one embodiment, a pressing convex portion 1210 protrudes from a side of the limiting baffle 120 facing away from the convex key 110, and the pressing convex portion 1210 abuts against the micro switch 510. In one embodiment, the upper shell cover plate 400 is provided with a first limiting convex strip 410 and a second limiting convex strip 420. Both the first limiting convex strip 410 and the second limiting convex strip 420 are located in the battery inner cavity 302. Both the first limiting convex strip 410 and the second limiting convex strip 420 are located on the other side of the limiting baffle 120, and the first limiting convex strip 410 and the second limiting convex strip 420 respectively abut against both sides of the pressing convex portion 1210.

[0049] It can be understood that since the key body 100 is an integrally formed structural injection molding, when the convex key 110 is pressed by an external force, the convex key 110 will drive the pressing convex portion 1210 to press the micro switch 510. At the same time, the convex key 110 will also synchronously drive the other side of the limiting baffle 120 to respectively abut against the first limiting convex strip 410 and the second limiting convex strip 420. Since the key stroke of the magnetic suction key structure 10 in this embodiment is short, the deformation amounts of the first limiting convex strip 410 and the second limiting convex strip 420 respectively squeezed are small, and even can be ignored. In this way, there is no need to worry about the problem that the first limiting convex strip 410 and the second limiting convex strip 420 are deformed and broken with the accumulation of the number of presses of the convex key 110.

[0050] Furthermore, the first limiting rib 410 and the second limiting rib 420 can also form an overall movement limit for the key body 100, ensuring the stability of the convex key 110 when pressed, avoiding the problem of the convex key 110 being pressed and deflected, and thus preventing the key jamming problem.

[0051] As Figure 1 shown, in one embodiment, the limiting baffle 120 is provided with a structural groove 1201, and a part of the pressing convex portion 1210 is caught in the structural groove 1201.

[0052] It can be understood that the provision of the structural groove 1201 is conducive to the lightweight design of the key body 100, reducing the amount of plastic required for the injection molding of the key body 100; and, in this embodiment, the cross-section of the pressing convex portion 1210 is cross-shaped, effectively strengthening the structural strength of the key body 100.

[0053] It should be noted that the cross-section of the pressing convex portion 1210 includes but is not limited to cross-shaped or circular.

[0054] As Figures 1 to 5 shown, in one embodiment, the through hole 301 is correspondingly arranged with the micro switch 510 of the circuit board 500. In this way, when the convex key 110 movably positioned in the through hole 301 is pressed and slides, the pressing convex portion 1210 is driven to preferably abut against the micro switch 510 to complete the pressing process of the convex key 110.

[0055] As Figure 3 and Figure 4 shown, in one embodiment, the mobile power device 20 further includes a battery module 600, the battery module 600 is fixedly installed in the battery inner cavity 302, and the circuit board 500 is electrically connected to the battery module 600.

[0056] Compared with the prior art, the present utility model has at least the following advantages:

[0057] 1. By embedding one of the first magnetic member and the second magnetic member on the limiting baffle, and embedding the other of the first magnetic member and the second magnetic member in the main housing, a magnetic force of attraction is generated between the first magnetic member and the second magnetic member.

[0058] 2. The above magnetic attraction key structure does not need to adopt a hot melting connection method, and preferably saves the internal space of the mobile power device.

[0059] 3. Assembly personnel can simply align the convex key with the through hole, that is, through the magnetic force between the second magnetic part and the first magnetic part, to make the limit baffle of the key body be attracted and closely attached to the inner wall of the main housing, and the other side of the limit baffle abuts against the micro switch of the circuit board, realizing the accurate and rapid assembly of the key body. In this way, the assembly convenience of the magnetic suction key structure is effectively improved.

[0060] The above embodiments only represent several implementation manners of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. A magnetic button structure for being installed in a through hole of a main housing of a mobile power supply device, characterized in that, The magnetic button structure comprises: The key body comprises a convex key and a limit baffle; the convex key is located on one side of the limit baffle, the convex key is used to be movably positioned in the through hole, and the other side of the limit baffle is used to abut against a micro switch of a circuit board; The magnetic attraction component includes a first magnetic component and a second magnetic component with opposite polarities; one of the first magnetic component and the second magnetic component is embedded in the limit baffle, and the other of the first magnetic component and the second magnetic component is used to be embedded in the main shell, the projection surface of the first magnetic component partially overlaps with the projection surface of the second magnetic component, so that the key body is attached to the main shell, and the projection surface is a plane perpendicular to the sliding direction of the convex key.

2. The magnetic button structure according to claim 1, wherein The first magnetic component is embedded in the limit baffle, and the second magnetic component is used to be embedded in the main shell.

3. The magnetic attraction button structure according to claim 2, wherein, The limit baffle is coated with rubber on the outer peripheral wall of the first magnetic component; and / or, The first magnetic member is cylindrical; and / or, There are multiple first magnetic members, and the multiple first magnetic members are arranged along the periphery of the limiting baffle.

4. The magnetic button structure according to claim 1, wherein, The projection area of the limit baffle on the projection surface is larger than the projection area of the convex key on the projection surface, and the projection surface is a plane perpendicular to the sliding direction of the convex key.

5. A mobile power supply device, characterized in that, Including the magnetic button structure described in any one of claims 1-4, the mobile power supply device also includes a main shell, an upper shell cover and a circuit board; the main shell is provided with a through hole, the upper shell cover is covered on the main shell, the main shell and the upper shell cover together form a battery cavity, the through hole is connected to the battery cavity, and the circuit board is fixedly installed in the battery cavity.

6. The mobile power supply device according to claim 5, characterized in that The upper shell cover plate is snap-connected to the main shell.

7. The mobile power supply device according to claim 5, characterized in that, A pressing convex portion is convexly provided on one side of the limit baffle away from the convex key, and the pressing convex portion abuts against the micro switch.

8. The mobile power supply device according to claim 7, characterized in that, The upper shell cover is provided with a first limiting convex strip and a second limiting convex strip; the first limiting convex strip and the second limiting convex strip are both located in the battery cavity, the first limiting convex strip and the second limiting convex strip are both located on the other side of the limiting baffle, and the first limiting convex strip and the second limiting convex strip are respectively in contact with the two sides of the pressing convex portion; and / or, The limit baffle is provided with a structural groove, and the pressing protrusion is partially inserted into the structural groove.

9. The mobile power supply device according to claim 5, characterized in that The through hole is arranged corresponding to the micro switch of the circuit board.

10. The mobile power supply device according to claim 5, characterized in that, The mobile power supply device also includes a battery module, which is fixedly installed in the battery cavity, and the circuit board is electrically connected to the battery module.

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