CN219123947U

CN219123947U - Mobile power supply

Info

Publication number: CN219123947U
Application number: CN202223286133.9U
Authority: CN
Inventors: 陈龙扣; 桂登宇; 张燕春; 朱惠勇
Original assignee: Shenzhen Baseus Technology Co Ltd
Current assignee: Shenzhen Baseus Technology Co Ltd
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-06-02
Anticipated expiration: 2032-12-07

Abstract

The application relates to the technical field of mobile power supplies and provides a mobile power supply, which comprises a shell, at least one mandrel and a movable support. One end of at least one mandrel is connected to the support backboard at the rear side of the shell; the movable support is provided with a folding state which is attached to the support backboard and an unfolding state which rotates around the support backboard by a preset angle; the movable bracket comprises at least one hinged end; a hinge end and a mandrel are rotatably connected to form a set of revolute pairs so that the movable support can be switched between a folded state and an unfolded state; a first ratchet part is formed on the mandrel in at least one set of revolute pairs, and a second ratchet part is formed on the hinged end matched with the mandrel with the first ratchet part; the movable bracket can rotate unidirectionally from a folded state to an unfolded state under the matching state of the first ratchet part and the second ratchet part; the movable support can be switched between a folded state and an unfolded state in a bidirectional manner under the separation state of the first ratchet part and the second ratchet part. The portable power source that this application provided, the support reliability of movable support is high.

Description

Mobile power supply

Technical Field

The application relates to the technical field of mobile power sources, in particular to a mobile power source.

Background

With the development of wireless charging technology, the existing mobile power supply with wireless charging function is widely used for charging small-sized electronic devices such as mobile phones in daily life of people. The existing mobile power supply of a part is provided with a support, so that the mobile phone can be conveniently watched in the charging process, but the existing mobile power supplies provided with the support are low in stability and poor in texture, and the automatic opening and closing condition can be realized, so that great inconvenience is caused to a user, and the experience effect of consumers is affected.

Disclosure of Invention

In view of this, the embodiment of the application provides a portable power source, and the use reliability of the movable support is high.

In order to achieve the above purpose, the technical solution of the embodiments of the present application is implemented as follows:

the application provides a portable power source, include:

a housing;

one end of the at least one mandrel is connected to the support backboard at the rear side of the shell;

the movable support is provided with a folding state attached to the support backboard and an unfolding state rotating around the support backboard by a preset angle; the movable support comprises at least one hinged end; one of the hinged ends and one of the mandrels are rotatably connected to form a set of revolute pairs to enable the movable support to be switched between the collapsed and expanded states;

a first ratchet part is formed on the mandrel in at least one set of the revolute pairs, and a second ratchet part is formed on the hinged end matched with the mandrel with the first ratchet part; the movable bracket can rotate unidirectionally from the folded state to the unfolded state under the matching state of the first ratchet part and the second ratchet part; the movable support can be switched between the folded state and the unfolded state in a separated state of the first ratchet part and the second ratchet part.

In some embodiments, the first ratchet portion comprises a plurality of ratchet teeth having a first transition surface and a first stop surface, and the second ratchet portion comprises a plurality of ratchet teeth having a second transition surface and a second stop surface;

the first transition surface can rotate relative to the second transition surface around the axial direction of the mandrel under the matching state of the first ratchet part and the second ratchet part so as to enable the movable support to rotate from the folded state to the unfolded state; the first stop surface is abutted with the second stop surface so as to prevent the movable support from rotating from the unfolded state to the folded state around the axial direction of the mandrel.

In some embodiments, the support back plate is formed with a mounting hole, and one end of the mandrel is axially slidably sleeved in the mounting hole, so that the first ratchet part and the second ratchet part are switched between the matched state and the separated state.

In some embodiments, the mandrel comprises a shaft and a ratchet sleeved on the shaft; along the axial direction of the shaft rod, the first ratchet part is formed at one end of the ratchet wheel facing the hinged end, and the second ratchet part is formed at one end of the hinged end facing the ratchet wheel.

In some embodiments, the mobile power supply includes an elastic member, and one end of the elastic member is connected to the ratchet wheel, so that the first ratchet portion and the second ratchet portion are kept in the matched state.

In some embodiments, the hinge end is formed with a hinge hole, the support back is formed with an operation hole, and the elastic member is a compression spring; the mounting hole, the pressure spring, the ratchet wheel, the hinge hole and the operation hole are sequentially penetrated on the shaft rod along the axial direction of the shaft rod;

pressing the shaft rod towards the direction of the mounting hole so as to drive the ratchet wheel to be separated from the hinged end, and switching the first ratchet part and the second ratchet part from the matched state to the separated state to elastically deform the pressure spring; and the pressing force to the shaft lever is canceled, the elastic force of the pressure spring drives the ratchet wheel to abut against the hinged end, and the first ratchet part and the second ratchet part are switched from the separation state to the matching state.

In some embodiments, the mandrel is sleeved on an outer peripheral wall of one end of the mounting hole to form a first rotation stopping portion, an inner peripheral wall of the mounting hole is formed with a second rotation stopping portion, and the first rotation stopping portion and the second rotation stopping portion are in plug-in fit.

In some embodiments, the first rotation stopping portion is an axially extending rotation stopping edge, and the second rotation stopping portion is a rotation stopping edge groove matched with the rotation stopping edge in shape.

In some embodiments, the number of the revolute pairs is two, the two sets of revolute pairs are respectively arranged at two sides of the width direction of the support backboard, the connecting lines of the two sets of revolute pairs are the rotation axis of the movable support, and the rotation axis is parallel to the width direction of the support backboard.

In some embodiments, a housing is formed with a receiving cavity, the mobile power supply includes a wireless charging module and a magnetic member, the magnetic member and the wireless charging module are both disposed on one side of the receiving cavity, which is close to a charging shell plate located on the front side of the housing, the magnetic member is magnetically connected with a mobile device, so as to magnetically fix the mobile device to the charging shell plate, and the wireless charging module is used for wirelessly transmitting electric energy to the mobile device.

According to the mobile power supply provided by the embodiment of the application, on one hand, the first ratchet part and the second ratchet part are in the matched state, the movable support can rotate from the folded state to the unfolded state along the relative mandrel in the single direction, after the movable support is unfolded by the preset angle, the movable support is not allowed to rotate to the folded state due to the fact that the first ratchet part is matched with the second ratchet part, so that the supporting reliability of the movable support in the unfolded state is guaranteed, the movable support can not be easily rocked due to external force, and the supporting performance is better. On the other hand, when not needing to use and move the support, through separating first ratchet portion and second ratchet portion, can rotate the movable support from the expansion state to the folding state, under the folding state, move the support laminating on supporting the backplate, portable power source's overall dimension is compact, can conveniently use the person of taking with oneself and accomodate.

Drawings

Fig. 1 is a schematic structural view of a mobile power supply according to an embodiment of the present application, in which a case where a movable stand is in an expanded state is schematically shown;

FIG. 2 is an exploded view of the structure of FIG. 1;

FIG. 3 is a cross-sectional view of the structure of FIG. 1 from one of the viewing angles;

FIG. 4 is an enlarged view of the structure at A of FIG. 3;

FIG. 5 is a schematic diagram of a mandrel of a portable power source according to an embodiment of the present disclosure;

FIG. 6 is a schematic diagram of a mandrel of a mobile power supply according to another embodiment of the present application;

fig. 7 is a schematic structural diagram of a movable stand of a mobile power supply according to an embodiment of the present disclosure;

FIG. 8 is an enlarged view of the structure at B of the structure shown in FIG. 7;

FIG. 9 is a schematic view of the structure shown in FIG. 1; wherein, the structural position relation of the movable bracket relative to the fixed bracket is schematically shown when the movable bracket is in a folded state;

FIG. 10 is a schematic view of the structure of FIG. 1; wherein, the structural position relation of the movable bracket relative to the fixed bracket is schematically shown when the movable bracket is in the unfolding state.

Reference numerals illustrate:

a mobile power supply 100; a housing 1; a housing chamber 1a; a support back plate 11; a mounting hole 11a; a second rotation stopping portion 11aa; an operation hole 11b; a charging shell 12; a mandrel 2; a shaft lever 21; a ratchet wheel 22; a first ratchet part 221; a first transition surface 221a; a first stop surface 221b; a first rotation stopper 23; a movable bracket 3; a hinged end 31; a hinge hole 31a; a second ratchet part 311; a second transition surface 311a; a second stop surface 311b; a first stopper 312; a support beam 32; a rotating beam 33; an elastic member 4; a fixed bracket 5; a second limit portion 51; a wireless charging module 6; a charging coil 61; a battery 62; a magnetic member 7; a button 8.

Detailed Description

It should be noted that the various embodiments/implementations provided herein may be combined with each other without contradiction. The detailed description of the specific embodiments should be understood as an explanatory description of the spirit of the application and should not be construed as unduly limiting the application.

In the description of the present application, the terms "widthwise", "lengthwise" orientation are based on the orientation shown in fig. 2. It is to be understood that these directional terms are merely used to facilitate the description of the present application and to simplify the description, and are not intended to indicate or imply that the devices or elements referred to must have, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present application. The term "first/second" merely distinguishes between different objects and does not denote that there is the same or a relationship between the two.

Referring to fig. 1 and 2, a mobile power supply 100 is provided in the embodiment of the present application, and the mobile power supply 100 includes a housing 1, at least one mandrel 2, and a movable support 3.

One end of at least one spindle 2 is connected to a support back plate 11 on the rear side of the housing 1. That is, the number of the mandrels 2 may be set as needed, and when the number of mandrels 2 is one, it may be set on the left side or the right side in the width direction that may be located on the support back 11 according to the usage habit of the user; when the number of the mandrels 2 is two, the mandrels are arranged on two sides of the support backboard 11; when the number of mandrels 2 is plural, one end of at least one mandrel 2 is connected to the support back plate 11.

The movable bracket 3 has a folded state attached to the support back plate 11 and an unfolded state rotated around the support back plate 11 by a preset angle; the mobile support 3 comprises at least one hinged end 31; a hinge end 31 is rotatably connected to a spindle 2 to form a set of revolute pairs to enable the movable support 3 to be switched between a folded state and an unfolded state. That is, the user can rotate the movable support 3 by a predetermined angle relative to the support back plate 11 in the unfolded state, and support the movable support 3 on the plane by the housing 1 and the movable support 3 respectively, so that the charging shell 12 is inclined by a predetermined angle relative to the vertical direction to face the user, and then attach the mobile device such as a mobile phone, a tablet and other electronic terminals to the charging shell 12 for the user to use the mobile device while charging.

When the mobile power supply 100 is not needed, the movable support 3 can be rotated to a folded state, and in the folded state, the movable support 3 is attached to the support back plate 11, so that the mobile power supply 100 is compact in overall size and convenient for a user to carry and store.

The number of the hinge ends 31 of the movable bracket 3 may be one or plural, and one hinge end 31 corresponds to one spindle 2, and one hinge end 31 and one spindle 2 are rotatably connected to constitute a set of revolute pairs, specifically, the structural form of the movable bracket 3 is not particularly limited, and the movable bracket 3 may be a plate-like, rod-like or the like structure.

With the development of wireless charging technology, the existing mobile power supply with wireless charging function is widely used in daily life of people, for example, in an embodiment, referring to fig. 2, a housing 1 is formed in a housing 1, a mobile power supply 100 includes a wireless charging module 6 and a magnetic member 7, the magnetic member 7 and the wireless charging module 6 are both disposed on one side of the housing 1a near a charging shell 12 located on the front side of the housing 1, the magnetic member 7 is magnetically connected with a mobile device to magnetically fix the mobile device to the charging shell 12, and the wireless charging module 6 is used for wirelessly transmitting electric energy to the mobile device. The wireless charging module 6 includes a charging coil 61 and a battery 62, and the magnetic attraction member may be a magnet, and the number of the magnets may be one or more. In one embodiment, a plurality of magnets are uniformly distributed around the outer periphery of the charging coil 61. In use, the mobile device is attached to the charging housing 12 and the charging coil 61 wirelessly transmits electrical power to the mobile device. That is, the magnetic attraction piece can be convenient for fixing the mobile equipment such as a mobile phone and the like during wireless charging, and the use experience of charging of a user is improved.

Referring to fig. 3 and 4, the spindle 2 of at least one set of revolute pairs is formed with a first ratchet part 221, and the hinge end 31 mated with the spindle 2 having the first ratchet part 221 is formed with a second ratchet part 311; the movable bracket 3 can rotate unidirectionally from the folded state to the unfolded state in the matched state of the first ratchet part 221 and the second ratchet part 311; in the separated state, the first ratchet 221 and the second ratchet 311 can be switched between the folded state and the unfolded state.

That is, in the case where the number of pairs is plural, the first ratchet part 221 and the second ratchet part 311 may be provided to the spindle 2 and the hinge end 31 in one of the pairs, or the first ratchet part 221 and the second ratchet part 311 may be provided to the spindle 2 and the hinge end 31 in the plural pairs.

According to the mobile power supply 100 provided by the embodiment of the application, on one hand, the first ratchet part 221 and the second ratchet part 311 are in the matched state, so that the movable support 3 rotates from the folded state to the unfolded state along the relative mandrel 2 in a single direction, after the movable support 3 is unfolded by a preset angle, the movable support 3 is not allowed to rotate to the folded state due to the fact that the first ratchet part 221 is matched with the second ratchet part 311, the supporting reliability of the movable support 3 in the unfolded state is guaranteed, the movable support 3 cannot be easily rocked by external force, and the supporting performance is better. On the other hand, when the movable support 3 is not required to be used, the movable support 3 can be rotated from the unfolded state to the folded state by separating the first ratchet part 221 from the second ratchet part 311, and in the folded state, the movable support 3 is attached to the support back plate 11, so that the overall size of the mobile power supply 100 is compact, and the mobile power supply can be conveniently carried and stored by a user.

In one embodiment, referring to fig. 4 to 8, the first ratchet part 221 includes a plurality of ratchet teeth having a first transition surface 221a and a first stop surface 221b, and the second ratchet part 311 includes a plurality of ratchet teeth having a second transition surface 311a and a second stop surface 221 b. Specifically, the number of ratchets is not particularly limited, and the number of ratchets of the first ratchet part 221 corresponds to the number of ratchets of the second ratchet part 311 one by one, and in an exemplary embodiment, referring to fig. 5, the number of ratchets of the first ratchet part 221 is two, and in another embodiment, referring to fig. 6, the number of ratchets of the first ratchet part 221 is six. The more densely the number of ratchet teeth is arranged, the more the angle that the movable bracket 3 can be adjusted after the first ratchet part 221 is engaged with the second ratchet part 311, and the better the unidirectional rotatability of the movable bracket 3.

In the matching state of the first ratchet part 221 and the second ratchet part 311, the first transition surface 221a can rotate relative to the second transition surface 311a around the axial direction of the mandrel 2, so that the movable bracket 3 rotates from the folded state to the unfolded state; the first stop surface 221b abuts against the second stop surface 311b to prevent the movable bracket 3 from rotating from the unfolded state to the folded state about the axial direction of the spindle 2. Specifically, the shape of the ratchet is wedge-shaped, when the support 3 needs to be unfolded, the ratchet of the first ratchet part 221 is kept fixed, the ratchet of the second ratchet part 311 rotates unidirectionally relative to the ratchet of the first ratchet part 221, the second transition surface 311a rotates relative to the first transition surface 221a around the axial direction of the mandrel 2, and the movable support 3 rotates from a folded state to an unfolded state; when the movable bracket 3 rotates reversely toward the unfolded state to the folded state, the first stop surface 221b will abut against the second stop surface 311b to stop the reverse rotation of the movable bracket 3.

In one embodiment, referring to fig. 4, the support back plate 11 is formed with a mounting hole 11a, and one end of the mandrel 2 is slidably sleeved in the mounting hole 11a along the axial direction, so that the first ratchet part 221 and the second ratchet part 311 are switched between the matched state and the separated state. That is, the mounting hole 11a is used to support and fix the spindle 2, and the spindle 2 can slide in the mounting hole 11a in its own axial direction to adjust the axial distance along the spindle 2 between the first ratchet part 221 and the second ratchet part 311 with respect to each other, thereby controlling the coupling or decoupling between the first ratchet part 221 and the second ratchet part 311.

When the movable support 3 is required to be rotated from the folded state to the unfolded state, the first ratchet part 221 and the second ratchet part 311 are matched with each other, the movable support 3 can be rotated in a unidirectional manner to the unfolded state and always kept in the unfolded state, no rotation phenomenon occurs, when the movable support 3 is not required to be used, the first ratchet part 221 slides in the direction away from the second ratchet part 311 by controlling the mandrel 2 to slide in the axial direction, the first ratchet part 221 and the second ratchet part 311 are separated, reverse folding of the movable support 3 is not limited any more, and the movable support 3 can be rotated from the unfolded state to the folded state.

The mating position of the first ratchet portion 221 and the second ratchet portion 311 is not particularly limited, and for example, the first ratchet portion 221 may be located in the circumferential direction of the mandrel 2, and similarly, the first ratchet portion 221 may be located in the axial direction of the mandrel 2. In one embodiment, referring to fig. 4 to 8, the mandrel 2 includes a shaft 21 and a ratchet 22 sleeved on the shaft 21; along the axial direction of the shaft 21, a first ratchet part 221 is formed at an end of the ratchet wheel 22 toward the hinge end 31, and a second ratchet part 311 is formed at an end of the hinge end 31 toward the ratchet wheel 22. The first ratchet part 221 and the second ratchet part 311 are fitted to each other in the circumferential direction of the spindle 2.

In an embodiment, referring to fig. 2 and 4, the portable power source 100 includes an elastic member 4, and one end of the elastic member 4 is connected to the ratchet 22, so that the first ratchet portion 221 and the second ratchet portion 311 are kept in a matched state. The elastic piece 4 abuts against the ratchet 22 to apply elastic abutting force to the ratchet 22, so that when the movable support 3 rotates from the folded state to the unfolded state, the ratchet teeth of the first ratchet tooth part 221 always abut against the ratchet teeth of the second ratchet tooth part 311, and the movable support 3 can rotate in one direction to the unfolded state, and always maintains the unfolded state without rotation.

In an exemplary embodiment, referring to fig. 4, the hinge end 31 is formed with a hinge hole 31a, the support back 11 is formed with an operation hole 11b, and the elastic member 4 is a compression spring. Along the axial direction of the shaft 21, the mounting hole 11a, the compression spring, the ratchet 22, the hinge hole 31a and the operation hole 11b are sequentially penetrated through the shaft 21. The installation hole 11a is positioned on one axial side of the hinge hole 31a, the operation hole 11b is positioned on the other axial side of the hinge hole 31a, the axial two ends of the shaft lever 21 are respectively a pressing end and an installation end, the shaft lever 21 penetrates through the hinge hole 31a, the installation end is sleeved in the installation hole 11a, the pressing end is sleeved in the operation hole 11b, and the ratchet wheel 22 is positioned between the hinge hole 31a and the installation hole 11a; the elastic member 4 is a compression spring penetrating the shaft 21, one end of the compression spring abuts against one axial side of the ratchet 22, which is away from the first ratchet part 221, and the other end of the compression spring abuts against one side of the support back plate 11, which is provided with the mounting hole 11 a. The operation hole 11b plays a role of guiding the pressing end of the shaft lever 21, and the hinge hole 31a is used for being matched with the shaft lever 21 so as to realize the rotary connection of the movable bracket 3 and the mandrel 2.

When the movable support 3 needs to be folded and retracted, the shaft rod 21 is pressed towards the direction of the mounting hole 11a so as to drive the ratchet wheel 22 to be separated from the hinged end 31, the first ratchet part 221 and the second ratchet part 311 are switched from the matched state to the separated state, the pressure spring is elastically deformed, and the movable support 3 is rotated from the unfolded state to the folded state so as to complete the folding action.

The pressing force to the shaft lever 21 is cancelled, the elastic force of the pressure spring drives the ratchet 22 to abut against the hinge end 31, and the first ratchet part 221 and the second ratchet part 311 are switched from the separated state to the matched state. Meanwhile, the first ratchet part 221 and the second ratchet part 311 are maintained in a matched state by the elastic force of the compression spring, so that the movable bracket 3 can be unfolded unidirectionally again when the movable bracket is needed to be used next time.

In an embodiment, referring to fig. 1 to 4, the portable power source 100 further includes a button 8, and the button 8 is disposed on the pressing end of the shaft 21, so that a user can operate the spindle 2 more conveniently. The manner of engagement of the button 8 with the shaft 21 is not limited, and includes, but is not limited to, interference fit, threaded connection, snap fit, etc.

In an embodiment, referring to fig. 4 to 6, a first rotation stopping portion 23 is formed on an outer peripheral wall of one end of the mandrel 2 sleeved on the mounting hole 11a, a second rotation stopping portion 11aa is formed on an inner peripheral wall of the mounting hole 11a, and the first rotation stopping portion 23 and the second rotation stopping portion 11aa are in plug-in fit. Because the synchronous rotation between the first ratchet part 221 and the second ratchet part 311 cannot realize the unidirectional rotation in the process of rotating the movable support 3 from the folded state to the unfolded state, by arranging the first rotation stopping part 23 and the second rotation stopping part 11aa, the synchronous rotation of the movable support 3 along with the second ratchet part 311 on the movable support 3 can be ensured in the rotating process of the movable support 3, and the first ratchet part 221 on the mandrel 2 cannot follow.

The manner of the insertion engagement of the first rotation stopping portion 23 and the second rotation stopping portion 11aa is not particularly limited, and for example, the first rotation stopping portion 23 and the second rotation stopping portion 11aa may be engaged with a key and a key groove, or may be engaged with a non-circular shaped rod and a matching opposite groove. For example, referring to fig. 4 to 6, in one embodiment, the first rotation stopping portion 23 is an axially extending rotation stopping edge, and the second rotation stopping portion 11aa is a rotation stopping edge groove matching the shape of the rotation stopping edge. The rotation stopping edge is inserted into the rotation stopping edge groove. The number of the rotation stopping edges is not particularly limited, and a plurality of edges can make the rotation stopping effect of the mandrel 2 better.

In an embodiment, referring to fig. 2 and 3, the number of the revolute pairs is two, the two sets of revolute pairs are respectively disposed on two sides of the supporting back plate 11 in the width direction, and the connecting line of the two sets of revolute pairs is the rotation axis of the movable bracket 3, and the rotation axis is parallel to the width direction of the supporting back plate 11. That is, the movable bracket 3 has two hinge ends 31, and the movable power supply 100 is correspondingly provided with two mandrels 2, the connection line of the two hinge ends 31 is the rotation axis of the movable bracket 3, and the two ends of the movable bracket 3 are rotatably connected with two sides along the width direction of the support back plate 11 and rotate around the rotation axis parallel to the width direction of the support back plate 11.

The structural strength of the movable support 3 in the rotation process around the rotation axis can be guaranteed by the aid of the two hinged ends 31, the two hinged ends 31 are arranged on two sides of the width direction of the support backboard 11, the distance between the two hinged ends 31 can be increased, the stress of the movable support 3 in the rotation process is more uniform, the reliability of the rotation around the rotation axis is higher, and a user is not easy to damage when moving the movable support 3.

In an exemplary embodiment, referring to fig. 3 and 7, the movable bracket 3 includes a support beam 32 and two rotating beams 33. The two rotating beams 33 are respectively provided on both sides in the width direction of the support back plate 11; one end of the rotating beam 33 is a hinged end 31, the other end of the rotating beam 33 is a free end, and two ends of the supporting beam 32 are respectively connected with the free ends of the two rotating beams 33. Specifically, referring to the figure, the moving bracket 3 has a structure similar to a U-shaped frame, the supporting beam 32 is disposed at a side edge of the supporting back plate 11 along a length direction, the distance between the supporting beam 32 and the hinge end 31 is far, the rotating moment is large during moving, and the user can move the supporting beam 32 by applying a small force to the supporting beam 32, so that the moving bracket 3 is rotated, and the operation is simple and labor-saving.

In an embodiment, referring to fig. 2, 9 and 10, the mobile power supply 100 includes a fixed bracket 5 fastened to the support back plate 11, a first limiting portion 312 is formed at the hinge end 31, a second limiting portion 51 is formed at two ends of the fixed bracket 5, and in the unfolded state, the first limiting portion 312 abuts against the second limiting portion 51. Specifically, the fixed bracket 5 is also similar to a U-shaped frame structure, and the manner in which the fixed bracket 5 is fastened to the support back plate 11 is not particularly limited, including but not limited to screw connection, snap-fit, and the like. After the movable support 3 rotates to the folded state, the movable support 3 is attached to the supporting back plate 11, and after the movable support 3 rotates to the unfolded state, the first limiting part 312 abuts against the second limiting part 51, so that the movable support 3 only rotates between the folded state and the unfolded state.

That is, the cooperation of the first limiting portion 312 and the second limiting portion 51 is used to limit the rotation angle range of the movable bracket 3, so as to avoid excessive rotation of the movable bracket 3.

The specific limit matching structure of the first limit portion 312 and the second limit portion 51 is not particularly limited, and in an exemplary embodiment, referring to fig. 9 and 10, one of the first limit portion 312 and the second limit portion 51 is an arc-shaped protrusion extending circumferentially around the rotation axis, and the other is an arc-shaped groove matching the arc-shaped protrusion. That is, when the arc-shaped projection is provided at the hinge end 31, the arc-shaped groove matched with the arc-shaped projection is provided on the fixed bracket 5; when the arc-shaped protruding block is arranged on the fixed support 5, an arc-shaped groove matched with the arc-shaped protruding block is arranged at the hinged end 31. When the movable support 3 rotates around the rotation axis, the arc-shaped protruding blocks synchronously rotate around the rotation axis in the arc-shaped grooves, one end of each arc-shaped groove along the extending direction of the arc-shaped protruding blocks is provided with a stop wall, and after the movable support 3 rotates to the unfolding state, the arc-shaped protruding blocks abut against the stop walls of the arc-shaped grooves to limit the excessive rotation of the movable support 3.

The foregoing is merely specific embodiments of the present application, but the scope of protection of the present application is not limited thereto, and any person skilled in the art who is skilled in the art can easily think about the changes or substitutions within the technical scope of the present application, and the changes or substitutions are covered in the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A mobile power supply, comprising:

a housing;

2. The mobile power supply of claim 1, wherein the first ratchet portion comprises a plurality of ratchet teeth having a first transition surface and a first stop surface, and the second ratchet portion comprises a plurality of ratchet teeth having a second transition surface and a second stop surface;

3. The mobile power supply according to claim 1, wherein the support back plate is formed with a mounting hole, and one end of the core shaft is axially slidably sleeved in the mounting hole, so that the first ratchet portion and the second ratchet portion are switched between the engaged state and the disengaged state.

4. A mobile power supply according to claim 3, wherein the spindle comprises a shaft and a ratchet wheel sleeved on the shaft; along the axial direction of the shaft rod, the first ratchet part is formed at one end of the ratchet wheel facing the hinged end, and the second ratchet part is formed at one end of the hinged end facing the ratchet wheel.

5. The mobile power supply according to claim 4, comprising an elastic member having one end connected to the ratchet wheel to maintain the first ratchet portion and the second ratchet portion in the engaged state.

6. The mobile power supply according to claim 5, wherein the hinge end is formed with a hinge hole, the support back plate is formed with an operation hole, and the elastic member is a compression spring; the mounting hole, the pressure spring, the ratchet wheel, the hinge hole and the operation hole are sequentially penetrated on the shaft rod along the axial direction of the shaft rod;

7. The mobile power supply according to claim 3, wherein a first rotation stopping portion is formed on an outer peripheral wall of one end of the mounting hole, a second rotation stopping portion is formed on an inner peripheral wall of the mounting hole, and the first rotation stopping portion and the second rotation stopping portion are in plug-in fit.

8. The mobile power supply of claim 7, wherein the first rotation stopping portion is an axially extending rotation stopping edge, and the second rotation stopping portion is a rotation stopping edge groove matched with the rotation stopping edge in shape.

9. The portable power source according to claim 1, wherein the number of the revolute pairs is two, the two revolute pairs are respectively disposed on two sides of the supporting back plate in the width direction, the connecting lines of the two revolute pairs are rotation axes of the movable support, and the rotation axes are parallel to the width direction of the supporting back plate.

10. The portable power source according to any one of claims 1-9, wherein a housing cavity is formed in the housing, the portable power source includes a wireless charging module and a magnetic member, the magnetic member and the wireless charging module are both disposed on a side of the housing cavity near a charging shell plate located on a front side of the housing, the magnetic member is magnetically connected to a mobile device to magnetically fix the mobile device to the charging shell plate, and the wireless charging module is configured to wirelessly transmit electric energy to the mobile device.