CN214756436U - Mobile device auxiliary device - Google Patents

Abstract

The utility model discloses a mobile device auxiliary device, including auxiliary work ware and fixer, the fixer is used for dismantling with the mobile device and is connected, and the fixer can rotate for auxiliary work ware to realize the dismouting of fixer and auxiliary work ware, the auxiliary work ware passes through the fixer and can dismantle with the mobile device and be connected. Through can dismantle the connection with auxiliary work ware and fixer, and the fixer also can dismantle the connection with the mobile device, thereby be convenient for pull down from the mobile device when need not use mobile device auxiliary device, prevent to influence the experience that the user used the mobile device because of the fixer, and when needs are used for the mobile device of other sizes with the mobile device auxiliary device on, only need to change with the fixer of mobile device adaptation can, need not also to change whole mobile device auxiliary device, thereby make the mobile device auxiliary device can adapt the not unidimensional mobile device, the suitability is stronger.

Description

Mobile device auxiliary device

Technical Field

The utility model relates to a peripheral accessory technical field of mobile device especially relates to a mobile device auxiliary device.

Background

Along with the popularization of mobile electronic devices such as mobile phones and tablet computers, great convenience is brought to the life of people, and the use frequency is higher and higher, so that a plurality of auxiliary devices around mobile phones, such as wireless chargers, radiators, mobile phone supports, external cameras, sound equipment and the like, are derived.

Among them, a wireless charger is a device capable of charging a battery without being directly physically connected to an electrical contact of the battery, and generally includes an electromagnetic coil that wirelessly transmits power to a battery in a mobile electronic device such as a mobile phone. When the wireless charger is used, the mobile electronic equipment is placed at the preset charging position of the wireless charger, the electromagnetic coil can directly charge the battery of the mobile electronic equipment without inserting a wire into the mobile electronic equipment, and the wireless charger is very convenient to use. However, when the user needs to take the mobile phone for playing, the user is far away from the wireless charger, so that the user cannot play the mobile phone and charge the mobile phone.

The radiator is used for radiating heat for the mobile electronic equipment so as to improve the working performance of the mobile electronic equipment and prolong the service life of the battery. At present, game software becomes the most software installed by electronic equipment users, but part of games have high requirements on the running speed of the electronic equipment, a large amount of heat can be generated after the games run for a long time, if the heat cannot be dissipated timely, the heat generated by the electronic equipment not only influences the use experience, but also influences the performance of the electronic equipment, and even seriously burns out hardware. Generally, the user can use external radiator to dispel the heat to electronic equipment, and the support of radiator can be through carrying out the joint with electronic equipment, and the radiator laminates with electronic equipment back mutually, when electronic equipment generates heat, dispels the heat through the radiator to dispel the heat for electronic equipment.

In the current market, no matter the wireless charger or the radiator, the wireless charger or the radiator can only be suitable for a few models, when the size of the mobile electronic equipment is too large or small, the auxiliary device cannot be firmly installed on the mobile electronic equipment, and at the moment, the auxiliary device matched with the size of the mobile electronic equipment needs to be purchased.

SUMMERY OF THE UTILITY MODEL

In order to overcome the shortcoming and the deficiency that exist among the prior art, the utility model aims to provide a mobile device auxiliary device to solve among the prior art less problem of mobile device auxiliary device suitability.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides a mobile device auxiliary device, including auxiliary work ware and fixer, the fixer is used for dismantling with the mobile device and is connected, and the fixer can rotate for auxiliary work ware to realize the dismouting of fixer and auxiliary work ware, the auxiliary work ware passes through the fixer and can dismantle with the mobile device and be connected.

Further, the fixer includes procapsid, back lid and magnetism piece, and the fixer carries out magnetism through magnetism piece and mobile device and inhales and be connected, and the procapsid is equipped with the chamber that holds that is used for installing magnetism piece, and the back lid is used for hiding magnetism piece.

Furthermore, the fixer is also provided with a metal sheet, the metal sheet is fixed in the accommodating cavity and embedded on the front shell, and the magnetic part is adsorbed on the metal sheet.

Further, be equipped with buckle structure between auxiliary work ware and the fixer, buckle structure is including the buckle and the draw-in groove of mutually supporting, and the fixer is located to the buckle towards one side of auxiliary work ware, and one side of auxiliary work ware towards the fixer is located to the draw-in groove, and auxiliary work ware passes through buckle and the mutual lock of draw-in groove with the fixer.

Furthermore, the fixer is also provided with a positioning column, the auxiliary working device is provided with a positioning hole matched with the positioning column, and the positioning column and the positioning hole are used for installing and positioning the auxiliary working device and the fixer.

Furthermore, the front shell is further provided with a hand operating part, and the hand operating part protrudes outwards towards the edge of the fixer, so that a user can conveniently rotate the fixer by holding the fixer with hands, and the fixer and the auxiliary working device can be assembled and disassembled.

Furthermore, the fixer is provided with a first clamping part and a second clamping part, the fixer is clamped with the mobile device through the first clamping part and the second clamping part, one end of the fixer facing the second clamping part is provided with a first pivot part, one end of the second clamping part is provided with a second pivot part matched with the first pivot part, a rotating shaft is arranged between the first pivot part and the second pivot part, the first pivot part and the second pivot part are rotatably connected through the rotating shaft, the rotating shaft is provided with a reset piece, and the reset piece has an acting force for enabling the second clamping part to rotate towards the clamping direction.

Furthermore, a limiting block is arranged on the second pivoting part and used for limiting the rotating angle of the second clamping part relative to the fixer.

Further, the auxiliary working device is provided with a working face, the fixing device is provided with a avoiding hole corresponding to the working face, and when the auxiliary working device is installed on the fixing device, the working face is exposed from one side of the avoiding hole far away from the auxiliary working device.

Furthermore, one side of the fixer facing the auxiliary working device is provided with a limiting bulge, the limiting bulge is arranged around the avoiding hole, and the limiting bulge is sleeved on the periphery of the auxiliary working device, so that the fixer can rotate around the auxiliary working device conveniently.

The utility model has the advantages that: the mobile equipment auxiliary device comprises an auxiliary working device and a fixer, wherein the fixer is used for being detachably connected with the mobile equipment, the fixer can rotate relative to the auxiliary working device, so that the fixer and the auxiliary working device are disassembled and assembled, and the auxiliary working device is detachably connected with the mobile equipment through the fixer. Through can dismantle the connection with auxiliary work ware and fixer, and the fixer also can dismantle the connection with the mobile device, thereby be convenient for pull down from the mobile device when need not use mobile device auxiliary device, prevent to influence the experience that the user used the mobile device because of the fixer, and when needs are used for the mobile device of other sizes with the mobile device auxiliary device on, only need to change with the fixer of mobile device adaptation can, need not also to change whole mobile device auxiliary device, thereby make the mobile device auxiliary device can adapt the not unidimensional mobile device, the suitability is stronger.

Drawings

Fig. 1 is a schematic front view of an auxiliary device of a mobile device according to an embodiment of the present invention;

fig. 2 is a schematic rear view of an auxiliary device of a mobile device according to a first embodiment of the present invention;

fig. 3 is a schematic view illustrating a front view of an auxiliary device of a mobile device according to a first embodiment of the present invention;

fig. 4 is a schematic rear view of a mobile device auxiliary apparatus according to a first embodiment of the present invention;

fig. 5 is a schematic cross-sectional structure diagram of an auxiliary device of a mobile device according to a first embodiment of the present invention;

fig. 6 is a schematic view of a disassembled structure of an auxiliary working device according to a first embodiment of the present invention;

fig. 7 is a schematic view of a front view of a split structure of a fixer according to an embodiment of the present invention;

fig. 8 is a rear view of the fixing device according to the first embodiment of the present invention;

fig. 9 is a rear view schematic diagram of an auxiliary device of a mobile device according to a second embodiment of the present invention;

fig. 10 is a schematic cross-sectional structure diagram of an auxiliary device of a mobile device according to a second embodiment of the present invention;

fig. 11 is a rear view of the mobile device accessory according to the second embodiment of the present invention;

fig. 12 is a schematic view of a front view split structure of an auxiliary device of a mobile device in the second embodiment of the present invention.

In the figure: the auxiliary working device 10, the front case 10a, the rear case 10b, the working surface 101, the clamping groove 102, the positioning hole 103, the accommodating cavity 104, the air inlet 105, the air outlet 106, the through hole 107, the control circuit board 11, the through hole 111, the charging interface 112, the fan 12, the heat dissipation fin 13, the refrigeration sheet 14, the wireless charging assembly 15, the wireless charging coil 151, the aluminum sheet 152, the heat conduction silicone sheet 16, the control switch 17, the lighting assembly 18, the fixer 20, the front case 20a, the rear cover 20b, the avoiding hole 201, the magnetic member 21, the metal sheet 22, the first clamping portion 23, the material reduction space 231, the first guiding portion 232, the second clamping portion 24, the second pivoting portion 241, the limiting block 242, the second guiding portion 243, the first pivoting portion 25, the shielding cover 251, the rotating shaft 26, the reset piece 261, the buckle 271, the positioning column 272, the hand portion 273, the soft rubber pad 281, and the limiting protrusion 282.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the objects of the present invention, the following detailed description is made in conjunction with the accompanying drawings and preferred embodiments for the specific embodiments, structures, features and effects of the mobile device auxiliary device according to the present invention as follows:

[ example one ]

Fig. 1 is the embodiment of the utility model provides a first well mobile device auxiliary device's main structural schematic view, fig. 2 is the utility model discloses a first well mobile device auxiliary device's back vision structural schematic view, fig. 3 is the utility model discloses a first well mobile device auxiliary device's main split structural schematic view, fig. 4 is the utility model discloses a first well mobile device auxiliary device's back vision split structural schematic view, fig. 5 is the utility model discloses a first well mobile device auxiliary device's cross-sectional structure schematic view, fig. 6 is the utility model discloses a first well auxiliary work ware's split structural schematic view, fig. 7 is the utility model discloses a first well fixer's main split structural schematic view, fig. 8 is the utility model discloses a first well fixer's back vision split structural schematic view.

As shown in fig. 1 to 8, a provided mobile device auxiliary device according to an embodiment of the present invention includes an auxiliary working device 10 and a fixing device 20, the fixing device 20 is used for being detachably connected to a mobile device, the fixing device 20 can rotate relative to the auxiliary working device 10, so as to realize the dismounting of the fixing device 20 and the auxiliary working device 10, and the auxiliary working device 10 is detachably connected to the mobile device (a mobile phone, a tablet computer, a palm computer, etc.) through the fixing device 20. The auxiliary working device 10 includes a wireless charger, a heat sink, a mobile phone stand, an external camera, a sound device, and a wireless charger with a heat dissipation function, and the embodiment explains that the auxiliary working device 10 is a wireless charger with a heat dissipation function.

The utility model discloses a set up fixer 20 to rotate for auxiliary working ware 10, thereby realize the dismouting of fixer 20 and auxiliary working ware 10, and fixer 20 and mobile device also can dismantle the connection, thereby be convenient for pull down from the mobile device when need not using the mobile device auxiliary device, prevent to influence the experience that the user used the mobile device because of fixer 20; when the mobile equipment auxiliary device is used for mobile equipment with other sizes, only the fixing device 20 matched with the mobile equipment needs to be replaced, the whole mobile equipment auxiliary device does not need to be replaced, and therefore the mobile equipment auxiliary device can be matched with mobile equipment with different sizes, and the applicability is stronger.

Further, the auxiliary working tool 10 is provided with a working face 101, and the holder 20 is provided with a relief hole 201 corresponding to the working face 101, and when the auxiliary working tool 10 is mounted on the holder 20, the working face 101 is exposed from a side of the relief hole 201 away from the auxiliary working tool 10. The work surface 101 is brought into contact with the mobile device to dissipate heat and wirelessly charge the mobile device. Preferably, the auxiliary working implement 10 has a cylindrical structure as a whole, and the holder 20 has a circular ring structure as a whole.

In this embodiment, the holder 20 is provided with a magnetic member 21 (magnet), the magnetic member 21 is disposed around the avoiding hole 201, and the holder 20 is magnetically attracted to the mobile device through the magnetic member 21. The magnetic member 21 attracts a ferromagnetic member carried by the mobile device, so that the holder 20 is attracted to the mobile device, thereby facilitating the user to mount or dismount the holder 20.

Further, the holder 20 includes a front case 20a and a rear cover 20b, a receiving cavity is formed between the front case 20a and the rear cover 20b, the magnetic member 21 is installed in the receiving cavity, and the rear cover 20b is used for covering the magnetic member 21 to increase the aesthetic appearance of the holder 20. Wherein the rear cover 20b is preferably a mylar sheet and is fixed to a side of the front case 20a away from the auxiliary working implement 10 (a side of the front case 20a contacting the mobile device) by glue so as to cover the magnet. The side of the rear cover 20b facing the mobile device may be provided with a soft rubber pad to avoid scratching the mobile device.

Further, the fixer 20 is further provided with a metal sheet 22 magnetically matched with the magnetic member 21, the metal sheet 22 is of an annular structure and is arranged around the periphery of the avoidance hole 201, and the metal sheet 22 is used for fixing the magnetic member 21 in the fixer 20. The metal sheet 22 is fixed in the accommodating cavity and embedded on the front shell 20a, and the magnetic member 21 is adsorbed on the metal sheet 22, so that the magnetic member 21 is conveniently installed in the accommodating cavity.

Furthermore, a buckle structure is arranged between the auxiliary working device 10 and the fixer 20, and the auxiliary working device 10 and the fixer 20 are clamped through the buckle structure; or a thread structure is arranged between the auxiliary working device 10 and the fixer 20, and the auxiliary working device 10 and the fixer 20 are detachably connected through the thread structure; or a magnetic component is arranged between the auxiliary working device 10 and the fixer 20, and the auxiliary working device 10 and the fixer 20 are connected through magnetic attraction of the magnetic component. In this embodiment, a fastening structure is disposed between the auxiliary working device 10 and the fixing device 20, and the auxiliary working device 10 and the fixing device 20 are fastened by the fastening structure. Specifically, the fastening structure includes a fastening 271 and a clamping groove 102, which are matched with each other, wherein the fastening 271 is disposed on one side of the front housing 20a facing the auxiliary working device 10, the clamping groove 102 is disposed on one side of the auxiliary working device 10 facing the holder 20, and the auxiliary working device 10 and the holder 20 are fastened with each other through the fastening 271 and the clamping groove 102, so as to realize detachable connection.

Furthermore, the front housing 20a is further provided with a positioning post 272, the auxiliary working device 10 is provided with a positioning hole 103 matching with the positioning post 272, and the positioning post 272 and the positioning hole 103 are used for installing and positioning the auxiliary working device 10 and the holder 20, so as to perform positioning and fool-proofing functions. In the process of installing the auxiliary working device 10 in the fixing device 20, the positioning column 272 is inserted into the positioning hole 103, the buckle 271 is inserted into the clamping groove 102, and then the auxiliary working device 10 is rotated in the forward direction, so that the buckle 271 and the clamping groove 102 are buckled with each other, when the auxiliary working device 10 needs to be detached, the auxiliary working device 10 only needs to be rotated in the direction, and the buckle 271 and the clamping groove 102 are buckled in a contact manner.

Further, a hand part 273 is further provided on the front case 20a, and the hand part 273 protrudes toward an edge of the front case 20a so that a user can rotate the holder 20 by gripping it with a hand, thereby accomplishing the attachment and detachment of the holder 20 to the auxiliary working device 10. In this embodiment, after the buckle 271 is inserted into the slot 102, the counterclockwise rotating of the holder 20 can realize the installation of the both, otherwise, the clockwise rotating of the holder 20 can realize the disassembly of the both, so as to conveniently detach the buckle 271 from the slot 102.

In this embodiment, the auxiliary working device 10 is a wireless charger having a heat dissipation function. As shown in fig. 5 and 6, in particular, the auxiliary working device 10 includes a front shell 10a and a rear shell 10b connected to each other, an accommodating cavity 104 is provided between the front shell 10a and the rear shell 10b, an air inlet 105 and an air outlet 106 communicated with the accommodating cavity 104 are provided on the front shell 10a, and a through hole 107 communicated with the accommodating cavity 104 is provided on the rear shell 10 b. The accommodating cavity 104 is internally provided with a control circuit board 11, a fan 12, a heat radiating fin 13, a refrigerating sheet 14 (preferably a semiconductor refrigerating sheet) and a wireless charging assembly 15. Fan 12, refrigeration piece 14 and wireless charging assembly 15 all with control circuit board 11 electric connection, fan 12 is used for drive gas to get into in the holding chamber 104 from air intake 105 and blow off from air outlet 106, and radiating fin 13 sets up and is connected with refrigeration piece 14 around fan 12, and refrigeration piece 14 is used for the refrigeration in order to cool down for the mobile device, and wireless charging assembly 15 is used for carrying out wireless charging for the mobile device.

Preferably, the fan 12 and the heat dissipation fins 13 are located on one side of the control circuit board 11 facing the front case 10a, the wireless charging assembly 15 is located on one side of the control circuit board 11 facing the rear case 10b, the control circuit board 11 is provided with through holes 111 corresponding to the refrigeration pieces 14, the refrigeration pieces 14 penetrate through the control circuit board 11 through the through holes 111, so that the hot end surfaces of the refrigeration pieces 14 are in contact with the heat dissipation fins 13, and the cold end surfaces of the refrigeration pieces 14 are in contact with the wireless charging assembly 15, thereby dissipating heat and cooling heat of the wireless charging assembly 15 and the mobile device. The fan 12 and the heat radiating fins 13 are used for cooling the hot end surface of the refrigerating fins 14.

Further, the auxiliary working device 10 is provided with a heat-conducting silicone sheet 16 on one side facing the holder 20, one side of the heat-conducting silicone sheet 16 is in contact with the wireless charging assembly 15 through the through hole 107, and the other side protrudes out of the end face of the auxiliary working device 10, so that when the auxiliary working device 10 is mounted on the holder 20, one side of the heat-conducting silicone sheet 16 can avoid the hole 201 to be exposed and be in contact with the mobile device.

Further, still be equipped with the interface 112 that charges on the control circuit board 11, thereby external power supplies power for control circuit board 11, fan 12, refrigeration piece 14 and wireless subassembly 15 that charges through the interface 112 that charges.

Further, wireless charging assembly 15 includes wireless charging coil 151 and aluminum sheet 152, aluminum sheet 152 and the cold end face contact of refrigeration piece 14 to the increase is to wireless charging assembly 15 and mobile device heat dissipation cooling effect.

Further, the auxiliary working device 10 is provided with a control switch 17, the control switch 17 is installed on the front shell 10a and electrically connected with the control circuit board 11, and the control switch 17 has three gear switches for heat dissipation, heat dissipation plus wireless charging and wireless charging respectively.

Further, the auxiliary working implement 10 is provided with a light assembly 18, the light assembly 18 is mounted to the front case 10a and electrically connected to the control circuit board 11, and the light assembly 18 is used for increasing a light atmosphere of the auxiliary working implement 10 during operation.

[ example two ]

Fig. 9 is the embodiment of the utility model provides a rear view structural schematic of mobile device auxiliary device in two, fig. 10 is the utility model provides a mobile device auxiliary device's cross-sectional structure schematic in two, fig. 11 is the utility model provides a mobile device auxiliary device's rear view split structural schematic in two, fig. 12 is the utility model provides a mobile device auxiliary device's main split structural schematic in two. As shown in fig. 9 to 12, a mobile device assisting apparatus provided in the second embodiment of the present invention is substantially the same as the mobile device assisting apparatus in the first embodiment (fig. 1 to 8), except that in this embodiment, the holder 20 is provided with a first clamping portion 23 and a second clamping portion 24, and the holder 20 is clamped with the mobile device by the first clamping portion 23 and the second clamping portion 24. That is, in the present embodiment, the holder 20 is detachably connected to the mobile device by the first clamping portion 23 and the second clamping portion 24, and the present embodiment is applicable to the mobile device not having a ferromagnetic member built therein, as compared to the first embodiment.

Further, at least one of the first and second clamping portions 23 and 24 is rotatably coupled to the holder 20. In this embodiment, a first pivot portion 25 is disposed at an end of the holder 20 facing the second holding portion 24, a second pivot portion 241 engaged with the first pivot portion 25 is disposed at an end of the second holding portion 24, a rotation shaft 26 is disposed between the first pivot portion 25 and the second pivot portion 241, and the first pivot portion 25 and the second pivot portion 241 are rotatably connected through the rotation shaft 26. The first pivoting part 25 is provided with a shielding cover 251, and the shielding cover 251 is installed at both ends of the shaft hole of the first pivoting part 25 to shield the rotating shaft 26.

Further, a reset piece 261 is provided on the rotating shaft 26, and the reset piece 261 has a biasing force that rotates the second clamping portion 24 in the clamping direction. The return member 261 is preferably a torsion spring, but the return member 261 may be a pull-up spring, a magnet assembly that attracts or repels each other.

Further, the second pivoting portion 241 is provided with a limiting block 242, and the limiting block 242 is used for limiting the rotation angle of the second clamping portion 24 relative to the holder 20. When the second clamping portion 24 is opened relative to the holder 20, the stopper 242 is used to abut against the holder 20, so as to prevent the second clamping portion 24 from being opened excessively and broken.

Furthermore, the material reducing space 231 is arranged on the first clamping part 23, and the material reducing space 231 increases the elasticity of the first clamping part 23, so that the elastic deformation is facilitated, and the material consumption can be reduced. First clamping part 23 is equipped with first guide 232 towards the one end of second clamping part 24, and the one end of second clamping part 24 towards first clamping part 23 is equipped with second guide 243, and first guide 232 and second guide 243 are all towards the one side perk of keeping away from auxiliary working ware 10, and first guide 232 makes things convenient for first clamping part 23 centre gripping on the mobile device, and second guide 243 makes things convenient for the user to rotate second clamping part 24 through the finger.

Further, the inner sides (sides contacting with the mobile device) of the first clamping portion 23 and the second clamping portion 24 are provided with soft rubber pads 281 to avoid scratching the mobile device and increase the friction force with the mobile device.

Further, one side of the fixer 20 facing the auxiliary working device 10 is provided with a limiting protrusion 282, the limiting protrusion 282 is disposed around the avoiding hole 201, the limiting protrusion 282 is sleeved on the periphery of the wireless charging assembly 15, the fixer 20 is convenient to rotate around the wireless charging assembly 15, and therefore the buckle 271 and the clamping groove 102 are separated from being buckled.

In this embodiment, the first clamping portion 23 and the first pivot portion 25 are integrally formed with the holder 20, and the holder 20, the first clamping portion 23 and the second clamping portion 24 are made of transparent materials, so that when the holder is clamped with the mobile device, the first clamping portion 23 and the second clamping portion 24 are prevented from blocking the screen of the mobile device, and the screen is prevented from being watched by the user.

It should be understood by those skilled in the art that the rest of the structure and the operation principle of the present embodiment are the same as those of the first embodiment, and are not described herein again.

In this document, the terms of upper, lower, left, right, front, rear and the like are used to define the positions of the structures in the drawings and the positions of the structures relative to each other, and are only used for the sake of clarity and convenience in technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims. It is also to be understood that the terms "first" and "second," etc., are used herein for descriptive purposes only and are not to be construed as limiting in number or order.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description in any form, and although the present invention has been disclosed with the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make some changes or modifications within the technical scope of the present invention without departing from the technical scope of the present invention, and the technical contents of the above disclosure can be utilized to make equivalent embodiments, but the technical contents of the present invention are not broken away from, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention all still belong to the protection scope of the technical solution of the present invention.

Claims (10)

1. The auxiliary device for the mobile equipment is characterized by comprising an auxiliary working device (10) and a fixer (20), wherein the fixer (20) is used for being detachably connected with the mobile equipment, the fixer (20) can rotate relative to the auxiliary working device (10), so that the fixer (20) and the auxiliary working device (10) can be disassembled and assembled, and the auxiliary working device (10) is detachably connected with the mobile equipment through the fixer (20).

2. The mobile device accessory apparatus of claim 1, wherein the holder (20) comprises a front housing (20a), a rear cover (20b) and a magnetic member (21), the holder (20) is magnetically connected to the mobile device through the magnetic member (21), the front housing (20a) is provided with a receiving cavity for mounting the magnetic member (21), and the rear cover (20b) is used for covering the magnetic member (21).

3. The mobile device auxiliary apparatus according to claim 2, wherein the holder (20) is further provided with a metal plate (22), the metal plate (22) is fixed in the accommodating cavity and embedded on the front housing (20a), and the magnetic member (21) is attached to the metal plate (22).

4. The mobile device auxiliary apparatus according to claim 1, wherein a snap structure is disposed between the auxiliary working device (10) and the holder (20), the snap structure includes a snap (271) and a slot (102) that are engaged with each other, the snap (271) is disposed on a side of the holder (20) facing the auxiliary working device (10), the slot (102) is disposed on a side of the auxiliary working device (10) facing the holder (20), and the auxiliary working device (10) and the holder (20) are engaged with each other through the snap (271) and the slot (102).

5. The auxiliary device of claim 4, wherein the holder (20) further comprises a positioning post (272), the auxiliary working device (10) further comprises a positioning hole (103) engaged with the positioning post (272), and the positioning post (272) and the positioning hole (103) are used for positioning the auxiliary working device (10) and the holder (20).

6. The mobile equipment auxiliary device according to claim 4, wherein a hand portion (273) is further provided on the front case (20a), the hand portion (273) protruding outward toward an edge of the holder (20) so that a user can rotate the holder (20) by holding it with a hand to thereby detach the holder (20) from the auxiliary working implement (10).

7. Mobile equipment aid according to claim 1, characterised in that the holder (20) is provided with a first grip (23) and a second grip (24), the fixer (20) is clamped with the mobile equipment through the first clamping part (23) and the second clamping part (24), the end of the fixer (20) facing the second clamping part (24) is provided with a first pivot part (25), one end of the second clamping part (24) is provided with a second pivoting part (241) matched with the first pivoting part (25), a rotating shaft (26) is arranged between the first pivoting part (25) and the second pivoting part (241), the first pivot part (25) and the second pivot part (241) are rotationally connected through the rotating shaft (26), a reset piece (261) is arranged on the rotating shaft (26), and the reset piece (261) has an acting force which enables the second clamping part (24) to rotate towards the clamping direction.

8. The mobile device auxiliary apparatus as claimed in claim 7, wherein the second pivoting portion (241) is provided with a stopper (242), and the stopper (242) is used for limiting the angle of rotation of the second clamping portion (24) relative to the holder (20).

9. The mobile equipment auxiliary device according to any one of claims 1 to 8, wherein the auxiliary working device (10) is provided with a working surface (101), the holder (20) is provided with an avoidance hole (201) corresponding to the working surface (101), and when the auxiliary working device (10) is mounted on the holder (20), the working surface (101) is exposed from a side of the avoidance hole (201) away from the auxiliary working device (10).

10. The auxiliary device of claim 9, wherein a side of the fixer (20) facing the auxiliary working device (10) is provided with a limiting protrusion (282), the limiting protrusion (282) is disposed around the avoiding hole (201), and the limiting protrusion (282) is sleeved on the periphery of the auxiliary working device (10) to facilitate the fixer (20) to rotate around the auxiliary working device (10).

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