CN218124339U - Power supply device and back clamp thereof - Google Patents

Abstract

The utility model discloses a power supply device and a back clip thereof, the back clip comprises a shell, the shell comprises a first containing groove and a second containing groove which are arranged in an opposite way, the first containing groove is used for containing a mobile power supply, and the second containing groove is used for containing a mobile terminal; the first end of first storage tank is equipped with the hasp subassembly, and the hasp subassembly is used for connecting fixed portable power source, and the second end of first storage tank is equipped with limit structure, and limit structure is used for fixing in advance portable power source and cooperates the hasp subassembly to fix portable power source in first storage tank. The back clip can be used for installing a mobile power supply and a mobile terminal, and the mobile power supply can be detachably installed in the first accommodating groove and fixed through the locking component and the limiting structure, so that the mobile power supply is convenient to replace and more convenient to use. The power supply device comprises the back clamp and the mobile power supply which is arranged in the first accommodating groove in the back clamp in a replaceable mode, the mobile power supply can be replaced according to needs, and the applicability and the convenience of the power supply device are improved.

Description

Power supply device and back clamp thereof

Technical Field

The utility model relates to a portable power source technical field especially relates to a power supply unit and back splint thereof.

Background

The traditional back splint type mobile power supply is used for charging mobile equipment, the back splint type mobile power supply generally comprises a back splint and a battery fixed on the back splint, the back splint is usually made of plastic parts and provided with a battery cavity, the battery is fixed in the battery cavity in a sealing mode and forms an integrated structure with the back splint, and the battery cannot be taken out of the back splint, so that when the battery is low in electric quantity or consumes electric energy, the whole back splint type mobile power supply can be replaced, but the battery cannot be replaced.

Meanwhile, the battery of the back splint type mobile power supply cannot be taken out and replaced, and when the battery is attenuated to a certain degree, the back splint type mobile power supply can only be scrapped, so that the use cost of a consumer is high, and the use experience of the consumer is remarkably reduced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a power supply unit and back splint thereof.

The utility model provides a technical scheme that its technical problem adopted is: the back clip comprises a shell, wherein the shell comprises a first accommodating groove and a second accommodating groove which are arranged in a back-to-back manner, the first accommodating groove is used for detachably accommodating a mobile power supply, and the second accommodating groove is used for accommodating a mobile terminal;

the first end of first storage tank is equipped with the hasp subassembly, the hasp subassembly is used for the connection to be fixed portable power source, the second end of first storage tank is equipped with limit structure, limit structure is used for right portable power source is fixed in advance and cooperates the hasp subassembly will portable power source fixes in the first storage tank.

In some embodiments, the first receiving groove includes a first wall, a second wall, a third wall and a fourth wall, the first wall and the third wall are disposed opposite to each other, the second wall and the fourth wall extend along the length direction of the housing, and two ends of the second wall and the fourth wall are respectively connected to two ends of the first wall and the third wall;

the first wall is provided with the hasp subassembly, the third wall orientation the wall of first wall is equipped with limit structure.

In some embodiments, a side of the first wall facing away from the third wall is provided with an accommodating part, and the first wall is provided with a through hole communicated with an inner cavity of the accommodating part;

the lock catch assembly is detachably arranged in the accommodating part; the accommodating part is provided with a chute penetrating through the upper surface of the accommodating part;

the lock catch assembly comprises a base and a push button arranged on the base, and the push button comprises a first positioning part and a second positioning part which are arranged vertically; a limiting part is arranged on the first positioning part, the limiting part is used for penetrating through the through hole and extending into the groove of the mobile power supply to lock the mobile power supply, a limiting rod is arranged on one side of the first positioning part opposite to the limiting part, an elastic part is sleeved on the periphery of the limiting rod, and the end part of the elastic part, far away from the first positioning part, abuts against the wall surface of the accommodating part, facing the first positioning part, of the accommodating part;

the second positioning part is provided with an operating part, and the operating part protrudes out of the sliding groove.

In some embodiments, the limiting structure includes a first buckling part arranged on the third wall and facing the inner wall surface of the first wall, and the first buckling part is used for being matched with a first clamping groove of the mobile power supply;

and/or, the limiting structure comprises a second clamping groove formed in the third wall and facing the inner wall surface of the first wall, and the second clamping groove is used for being matched with a second clamping part of the mobile power supply.

In some embodiments, a conductive connector electrically connected to the mobile power source is disposed in the third wall;

the shell is also provided with a lens hole for exposing a lens of the mobile terminal;

the second containing groove is provided with a horn hole towards the wall surface of the horn of the mobile terminal, and a dust screen is arranged in the horn hole.

In some embodiments, a protection member is disposed on a wall surface of the second accommodating groove facing the charging port of the mobile terminal; the protection piece comprises a connecting arm connected with the wall surface of the second accommodating groove, a sealing part is arranged on one side of the connecting arm facing the charging port of the mobile terminal, and the sealing part is used for extending into the charging port of the mobile terminal to carry out sealing protection on the charging port of the mobile terminal;

the protector further includes a boss provided on the connecting arm.

Implement the utility model discloses following beneficial effect has: the utility model discloses a back clip comprises a shell, the shell comprises a first containing groove and a second containing groove which are arranged in a back-to-back manner, the first containing groove is used for containing a mobile power supply, and the second containing groove is used for containing a mobile terminal; the first end of first storage tank is equipped with the hasp subassembly, and the hasp subassembly is used for connecting fixed portable power source, and the second end of first storage tank is equipped with limit structure, and limit structure is used for fixing in advance portable power source and cooperates the hasp subassembly to fix portable power source in first storage tank. The back clip can be used for installing a mobile power supply and a mobile terminal, and the mobile power supply can be detachably installed in the first accommodating groove and fixed through the locking component and the limiting structure, so that the mobile power supply is convenient to replace and more convenient to use.

The utility model discloses still construct a power supply unit, including above-mentioned arbitrary embodiment the back splint to and replaceable mounting in portable power source in the first storage tank.

In some embodiments, the mobile power supply comprises a power supply shell, and a battery cell and a circuit board which are arranged in the power supply shell, wherein the battery cell and the circuit board are electrically connected;

the power supply shell comprises a first end face and a second end face which are oppositely arranged, the first end face is provided with a pre-fixing structure matched with the limiting structure, and the second end face is provided with a groove matched with the locking assembly.

In some embodiments, the mobile power supply further includes a wireless charging coil arranged inside the power supply shell and a magnetic separation sheet arranged between the wireless charging coil and the battery core, and the wireless charging coil is electrically connected to the circuit board.

In some embodiments, the mobile power source is one or more.

Implement the utility model discloses following beneficial effect has: the utility model discloses a power supply unit includes foretell back splint and can replace the portable power source who installs in the first storage tank in the back splint, can replace portable power source as required, has improved power supply unit's suitability and convenience.

Drawings

In order to explain the technical solution of the present invention more clearly, the present invention will be further described with reference to the accompanying drawings and examples, it should be understood that the following drawings only show some examples of the present invention, and therefore should not be considered as limiting the scope, for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort. In the drawings:

fig. 1 is a schematic diagram of a power supply device according to some embodiments of the present invention;

fig. 2 is a schematic structural diagram of a power supply device according to some embodiments of the present invention cooperating with a mobile terminal;

fig. 3 is a cross-sectional view of a power supply device in accordance with some embodiments of the present invention in conjunction with a mobile terminal;

fig. 4 is a schematic view of a back clip from a viewing angle according to some embodiments of the present invention;

fig. 5 to 7 are schematic structural views of the back clip of some embodiments of the present invention without the bracelet;

fig. 8 is an exploded view of a back clip in some embodiments of the invention;

fig. 9 to 10 are schematic structural views of the first housing in some embodiments of the present invention;

fig. 11 to 12 are schematic structural views of a second housing according to some embodiments of the present invention;

fig. 13 is a schematic structural view of a latch assembly in some embodiments of the invention;

fig. 14 is an exploded schematic view of a latch assembly in some embodiments of the invention;

fig. 15 to 16 are schematic structural diagrams of a mobile power supply according to some embodiments of the present invention;

fig. 17 is an exploded schematic view of a mobile power supply in some embodiments of the invention;

fig. 18 is a schematic structural diagram of the mobile power supply according to some embodiments of the present invention without an upper case;

fig. 19 is a schematic structural diagram of an upper case of the mobile power supply in some embodiments of the present invention.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "upper", "lower", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. are configured and operated in specific directions based on the directions or positional relationships shown in the drawings, and are only for convenience of describing the present invention, but do not indicate that the device or element referred to must have a specific direction, and thus, should not be construed as limiting the present invention.

It should also be noted that, unless expressly specified or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are to be construed broadly and encompass, for example, fixed connections as well as removable connections or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or intervening elements may also be present. The terms "first", "second", "third", etc. are only for convenience in describing the present technical solution, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of such features. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Referring to fig. 1 to 3, in some embodiments of the present invention, a power supply device includes a back clip and a mobile power source 2 detachably installed in a first accommodating groove a of the back clip, where the mobile power source 2 includes but is not limited to a wireless charging mobile power source, the mobile power source 2 can charge a mobile terminal 3 having a wireless receiving function through a wireless charging mode, and the mobile terminal 3 includes but is not limited to a mobile phone, a tablet or an interphone.

Please refer to fig. 4 to 8, which are embodiments of the present invention of a back clip, including a housing 1, the housing 1 includes a first receiving cavity a and a second receiving cavity B, which are disposed opposite to each other, the first receiving cavity a is used for detachably receiving a mobile power source 2, and the second receiving cavity B is used for receiving a mobile terminal 3.

A locking assembly 14 is arranged at a first end of the first accommodating groove a, the locking assembly 14 is used for connecting and fixing the mobile power supply 2, a limiting structure 1131 is arranged at a second end of the first accommodating groove a, and the limiting structure 1131 is used for pre-fixing the mobile power supply 2 and matching the locking assembly 14 to fix the mobile power supply 2 in the first accommodating groove a.

In some embodiments, the first receiving groove a has a shape substantially the same as that of the mobile power supply 2, and may include, but is not limited to, a substantially square groove structure, in some embodiments, the first receiving groove a may include a first wall 111, a second wall 112, a third wall 113, and a fourth wall 114, the first wall 111 and the third wall 113 are disposed opposite to each other, the second wall 112 and the fourth wall 114 extend along the length direction of the housing 1, two ends of the second wall 112 and the fourth wall 114 are respectively connected to two ends of the first wall 111 and the third wall 113, the first wall 111 is provided with the above-mentioned latch assembly 14, and a wall surface of the third wall 113 facing the first wall 111 is provided with a limiting structure 1131.

Referring to fig. 9, 10, 13 and 14, in some embodiments, an accommodating portion 1111 is disposed on a side of the first wall 111 facing away from the third wall 113, the first wall 111 is provided with a through hole 1113 communicating with an inner cavity of the accommodating portion 1111, and the locking assembly 14 is detachably mounted in the accommodating portion 1111.

Preferably, the receiving portion 1111 is provided with a sliding groove 1112 penetrating the upper surface thereof, the locking assembly 14 includes a base 141 and a pushing button 142 provided on the base 141,

the base 141 may include a bottom wall 1411 and a first side wall 1412 and a second side wall 1413 corresponding to the bottom wall 1411, the first side wall 1412 and the second side wall 1413 are relatively engaged to form a mounting space for the push button 142 to be mounted, and the push button 142 is movable on the bottom wall 1411. Preferably, the first sidewall 1412 and the second sidewall 1413 extend outward from opposite sides thereof with a first connecting wall 1414 and a second connecting wall 1415, respectively, and the first connecting wall 1414 and the second connecting wall 1415 can be mounted to the inner cavity of the accommodating portion 1111 by fastening bolts or fastening screws or the like.

The push button 142 includes a first positioning portion 1421 and a second positioning portion 1422 that are perpendicular to each other, and a longitudinal section of a structure formed by combining the first positioning portion 1421 and the second positioning portion 1422 is substantially L-shaped; the first positioning portion 1421 is provided with a limiting portion 1423, the limiting portion 1423 is used to penetrate through the through hole 1113 and extend into the groove 2112 of the mobile power supply 2 to lock the mobile power supply 2, one side of the first positioning portion 1421 opposite to the limiting portion 1423 is provided with a limiting rod 1424, an elastic member 1425 is sleeved on the outer periphery of the limiting rod 1424, an end portion of the elastic member 1425 far away from the first positioning portion 1421 abuts against a wall surface of the accommodating portion 1111 facing the first positioning portion 1421 to apply a supporting force to the limiting portion 1423, and the elastic member 1425 may be a coil spring.

Preferably, the second positioning portion 1422 is provided with an operating portion 1426, the operating portion 1426 is substantially a strip-shaped block structure, the operating portion 1426 protrudes out of the sliding groove 1112 for a user to operate, so that the limiting portion 1423 enters and exits the groove 2112 of the mobile power supply 2 to lock or release the mobile power supply.

In some embodiments, the push button 142 further includes a first side plate and a second side plate respectively connected to the first positioning portion 1421 and the second positioning portion 1422, the first side plate is disposed toward the first side wall 1412, and the second side plate is disposed toward the second side wall 1413.

In some embodiments, the limiting structure 1131 may be matched with a pre-fixing structure disposed on the mobile power supply 2, the limiting structure 1131 may include a first locking portion disposed on the third wall 113 and facing the inner wall surface of the first wall 111, the first locking portion being configured to be matched with the first locking groove 2111 of the mobile power supply 2, and/or the limiting structure 1131 includes a second locking groove disposed on the third wall 113 and facing the inner wall surface of the first wall 111, the second locking groove being configured to be matched with the second locking portion of the mobile power supply 2. It is understood that the first locking slot 2111 and/or the second locking portion are/is the pre-fixing structure described above.

In some embodiments, a conductive connector electrically connected to the mobile power source 2 is disposed in the third wall 113, and the conductive connector includes a pogopin connector 15 for connecting an external power source to charge the mobile power source 2. In some embodiments, the third wall 113 is provided with conductive pillars 16, including a positive conductive pillar and a negative conductive pillar, for charging the mobile power source 2.

Preferably, the shell 1 is further provided with a hanging rope hole 1133, and in some embodiments, the back clip further comprises a hanging rope connected with the hanging rope hole 1133. The rope hanging holes 1133 may be one or more, may be disposed on the side of the third wall 113 away from the first wall 111, and may be symmetrically disposed at intervals.

Preferably, be equipped with bracelet 17 on this shell 1, this bracelet 17 can be the magic and paste the bracelet, can supply the user to bind on the arm.

In some embodiments, the housing 1 is further provided with a lens hole for exposing a lens of the mobile terminal 3.

In some embodiments, the wall surface of the second receiving groove B facing the speaker of the mobile terminal 3 is provided with a speaker hole 1231, and the dust screen 128 is disposed in the speaker hole 1231.

In some embodiments, the wall surface of the second receiving cavity B facing the charging port of the mobile terminal 3 is provided with a protection member 125.

In some embodiments, the protection member 125 includes a connecting arm 1251 connected to the wall surface of the second receiving cavity B, a sealing portion 1252 is provided at a side of the connecting arm 1251 facing the charging port of the mobile terminal 3, the sealing portion 1252 is configured to extend into the charging port of the mobile terminal 3 to seal and protect the charging port of the mobile terminal 3, and the protection member 125 further includes a protrusion portion 1253 provided on the connecting arm 1251, and the protrusion portion 1253 may be outwardly extended for the user to snap the protection member 125. In some embodiments, the protector 125 can be a soft rubber plug.

Referring to fig. 8 to 12, in some embodiments, the housing 1 includes a first housing 11 and a second housing 12 detachably combined together, a first receiving groove a is formed on the first housing 11, a second receiving groove B is formed on the second housing 12,

as shown in fig. 9, the first housing 11 may include an annular peripheral wall, the peripheral wall is provided with a first receiving groove a, the first housing 11 is further provided with a first plate 115, the first plate 115 is connected to a side of the first wall 111 away from the third wall 113, the first plate 1151 is provided with a first bracelet hole 1151, and in cooperation therewith, an outer side of the third wall 113 away from the first wall 111 is provided with a second bracelet hole 1133, one end of the bracelet 17 is connected to the first bracelet hole 1151, and the other end is connected to the second bracelet hole 1133. The first plate 115 is further provided with a first lens hole 116. In some embodiments, the first housing 11 may be a plastic or silicone member.

As shown in fig. 11 and 12, the second housing 12 may include a first wall 121, a second wall 122, a third wall 123 and a fourth wall 124, the first wall 121 and the third wall 123 are disposed opposite to each other, and the second wall 122 and the fourth wall 124 are disposed opposite to each other and respectively connect ends of the first wall 121 and the third wall 123 to form a ring-shaped surrounding wall structure.

The second casing 12 is provided with a second plate 126 connecting the peripheries of the first wall 121, the second wall 122 and the fourth wall 124, the second plate 126 is provided with a hole groove 1261 matching with the first hand ring hole 1151, and after the first casing 11 and the second casing 12 are matched, the first hand ring hole 1151 and the hole groove 1261 are matched with each other to allow one end of the hand ring 17 to be fixed in a penetrating manner. The second plate 126 is provided with a second lens hole 127, and the second lens hole 127 and the first lens hole 116 are matched with each other to expose a lens of the mobile terminal.

Preferably, the second housing 12 is provided with two opposite clamping portions, which are respectively clamped on the outer sides of the second wall 112 and the fourth wall 114, wherein the two clamping portions may be a first clamping portion 1221 provided on the second wall 122 and a second clamping portion 1241 provided on the fourth wall 124, and the first clamping portion 1221 and the second clamping portion 1241 are clamped on the outer sides of the second wall 112 and the fourth wall 114.

The protection member 125 may be formed on the third wall 123.

In some embodiments, the second wall 122 and/or the fourth wall 124 may be provided with a button protection cover 129 for protecting the button of the mobile terminal 3, and the button protection cover 129 may be detachably assembled to the second wall 122 and/or the fourth wall 124.

In some embodiments, the second housing 12 may be a plastic or silicone piece.

In some embodiments, the first housing 11 and the second housing 12 may be fixed by a screw connection, a bolt or a screw connection, or a snap connection.

With reference to fig. 3 and 8, in some embodiments, the first casing 11 has a first through groove therethrough, the second casing 12 has a second through groove therethrough, the first through groove and the second through groove are disposed opposite to each other, the housing 1 further includes a support 13, the support 13 is a flat plate structure, the support 13 is disposed on the second casing 12 and separates the first through groove and the second through groove to define a first receiving groove a and a second receiving groove B.

The bracket 13 may have a fixing hole 131 formed on a side facing the empty groove 1261 to be engaged with the first bracelet hole 1151, and the fixing hole is also used for fixing one end of the bracelet 17.

In some embodiments, the bracket 13 may further include a positioning block 132 to be inserted into a predetermined space of the first housing 11 for positioning, the bracket 13 may further include a first engaging portion 133, and correspondingly, the protecting member 125 may include a second engaging portion 1254, and the first engaging portion 133 and the second engaging portion 1254 are engaged with each other to fix the bracket 13.

In some embodiments, the side of the cradle 13 facing the mobile terminal 3 may be provided with a texture or a protective layer, which may be a silicone layer.

In some embodiments, the housing 1 may be a unitary structure, and the bracket 13 may or may not be provided.

Fig. 15 to fig. 19 are combined to show the portable power source 2 according to some embodiments of the present invention, and the portable power source 2 may be detachably mounted on the back clip. Preferably, the number of the mobile power sources 2 may be one or more, and one or more of the mobile power sources 2 may be replaceably installed in the first accommodating groove a, that is, the mobile power sources 2 may be replaceably installed in the first accommodating groove a of the back clip after being charged in turn or simultaneously.

The mobile power supply 2 may include a power supply casing 21, and a battery cell 22 and a circuit board 23 disposed in the power supply casing 21, where the battery cell 22 is electrically connected to the circuit board 23. The power supply shell 21 includes a first end face and a second end face which are opposite to each other, the first end face is provided with a pre-fixing structure which is matched with the limiting structure, the pre-fixing structure is the first clamping groove 2111 and/or the second clamping portion, and the second end face is provided with a groove 2112 matched with the locking component 14.

The circuit board 23 is provided with an interface seat 231, the interface seat 231 may be a USB interface seat or a type-C interface seat, and the interface seat 231 may be charged or may be charged to the mobile terminal 3 by a charging wire.

The circuit board 23 is provided with a connector 232 which is connected to the pogopin connector 15, the pogopin connector 15 may be a male pogopin connector, and the connector 232 may be a female pogopin connector. It is understood that the mobile power source 2 and the case 1 are charged by pogopin (male-female) connection.

In some embodiments, the circuit board 23 may further have a plug hole 233 for connecting with the key 26 penetrating the power supply housing 21.

In some embodiments, the portable power source 2 may further include a prompt lamp set 25, where the prompt lamp set 25 is mounted on the power source casing 21 and connected to the circuit board 23, and is used for prompting the remaining power of the battery cell 22.

This portable power source 2 still includes locates the inside wireless charging coil 27 of power shell 21 and sets up at this wireless charging coil 27 and the magnetism piece 28 that separates between electric core 22, this wireless charging coil 27 and circuit board 23 electric connection. The wireless charging coil 27 may be wound with litz wire.

In some embodiments, the power supply housing 21 includes an upper housing 211 and a lower housing 212 which are engaged with each other, the upper housing 211 is a substantially cylindrical structure, the lower housing 212 may be a plate-shaped structure, and the upper housing 211 and the lower housing 212 may be fixed by bolts, screws, or the like, or may be fixed by an adhesive such as glue.

In some embodiments, the upper housing 211 has the first end surface and the second end surface, the first end surface may have the pre-fixing structure, the pre-fixing structure includes the first locking groove 2111 and/or the second locking portion, the first end surface further has the interface seat hole 2113 and the connection hole 24, and the connection seat hole 2113 may be configured with the protection plug 24 for protecting the connection seat hole 2113. The connection hole 24 is for exposing the connection end of the connector 232. The second end surface may be provided with the grooves 2112 described above.

In some embodiments, a coil groove is formed on a side of the lower case 212 facing the upper case 211 for receiving the wireless charging coil 27 therein, and the wireless charging coil 27 may be fixed by glue or adhesive tape.

In some embodiments, the mobile power source 2 may take out the back clip to directly charge the mobile terminal 3 by wireless charging.

The power supply device and the back clip thereof can be used for installing a mobile power supply and a mobile terminal, and the mobile power supply can be detachably installed in the first accommodating groove and fixed through the locking component and the limiting structure, so that the mobile power supply is convenient to replace and more convenient to use.

The power supply device and the back clip thereof are suitable for a plurality of shared special working crowds such as medical treatment, express delivery and equipment maintainers (airplane maintenance, automobile maintenance and outdoor maintenance), and are certainly suitable for common consumers, the back clip and the mobile power supply 2 adopt separable structures, when the mobile power supply 2 consumes low power or finishes power, the battery with high power or full charge can be replaced, and the mobile terminal 3 does not need to be taken out of a socket for charging.

It is understood that the above examples only represent preferred embodiments of the present invention, which are described in more detail and detail, but are not to be construed as limiting the scope of the present invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims (10)

1. The back clip is characterized by comprising a shell (1), wherein the shell (1) comprises a first accommodating groove (A) and a second accommodating groove (B) which are arranged in a back-to-back manner, the first accommodating groove (A) is used for detachably accommodating a mobile power supply (2), and the second accommodating groove (B) is used for accommodating a mobile terminal (3);

the first end of first storage tank (A) is equipped with hasp subassembly (14), hasp subassembly (14) are used for connecting fixedly portable power source (2), the second end of first storage tank (A) is equipped with limit structure (1131), limit structure (1131) are used for right portable power source (2) are fixed in advance and cooperate hasp subassembly (14) will portable power source (2) are fixed in first storage tank (A).

2. The back clip according to claim 1, wherein the first receiving groove (A) comprises a first wall (111), a second wall (112), a third wall (113) and a fourth wall (114), the first wall (111) and the third wall (113) are oppositely arranged, the second wall (112) and the fourth wall (114) are arranged to extend along the length direction of the housing (1), and two ends of the second wall (112) and the fourth wall (114) are respectively connected with two ends of the first wall (111) and the third wall (113);

the first wall (111) is provided with the locking buckle assembly (14), and the wall surface of the third wall (113) facing the first wall (111) is provided with the limiting structure (1131).

3. The clip according to claim 2, wherein the side of the first wall (111) facing away from the third wall (113) is provided with an accommodation portion (1111), the first wall (111) being provided with a through hole (1113) communicating with the inner cavity of the accommodation portion (1111);

the lock catch assembly (14) is detachably mounted in the accommodating part (1111); the accommodating part (1111) is provided with a sliding groove (1112) penetrating through the upper surface of the accommodating part;

the lock catch component (14) comprises a base (141) and a push button (142) arranged on the base (141), wherein the push button (142) comprises a first positioning part (1421) and a second positioning part (1422) which are perpendicular to each other; a limiting part (1423) is arranged on the first positioning part (1421), the limiting part (1423) is used for penetrating through the through hole (1113) and extending into a groove (2112) of the mobile power supply (2) to lock the mobile power supply (2), a limiting rod (1424) is arranged on one side of the first positioning part (1421) opposite to the limiting part (1423), an elastic part (1425) is sleeved on the periphery of the limiting rod (1424), and the end part, far away from the first positioning part (1421), of the elastic part (1425) abuts against the wall surface, facing the first positioning part (1421), of the accommodating part (1111;

an operation part (1426) is arranged on the second positioning part (1422), and the operation part (1426) protrudes out of the sliding groove (1112).

4. The back clip according to claim 3, wherein the limiting structure (1131) comprises a first latching portion provided on the third wall (113) towards the inner wall surface of the first wall (111), the first latching portion being configured to cooperate with a first latching slot (2111) of the mobile power supply (2);

and/or the limiting structure (1131) comprises a second clamping groove arranged on the third wall (113) towards the inner wall surface of the first wall (111), and the second clamping groove is used for being matched with a second clamping part of the mobile power supply (2).

5. The clip according to claim 4, wherein the third wall (113) is provided with an electrically conductive connector therein, which is electrically connected to the mobile power source (2);

the shell (1) is also provided with a lens hole for exposing a lens of the mobile terminal (3);

the second accommodating groove (B) faces to the wall surface of the horn of the mobile terminal (3) and is provided with a horn hole (1231), and a dust screen (128) is arranged in the horn hole (1231).

6. The clip according to any one of claims 1 to 5, wherein the wall surface of the second receiving groove (B) facing the charging port of the mobile terminal (3) is provided with a protection member (125); the protection piece (125) comprises a connecting arm (1251) connected with the wall surface of the second accommodating groove (B), a sealing part (1252) is arranged on one side, facing the charging port of the mobile terminal (3), of the connecting arm (1251), and the sealing part (1252) is used for extending into the charging port of the mobile terminal (3) to carry out sealing protection on the charging port of the mobile terminal (3);

the protection member (125) further comprises a projection (1253) provided on the connecting arm (1251).

7. A power supply device, characterized by comprising the back clip of any one of the preceding claims 1 to 6 and a mobile power supply (2) replaceably mounted in the first accommodating groove (a).

8. The power supply device according to claim 7, wherein the mobile power supply (2) comprises a power supply casing (21), and a battery cell (22) and a circuit board (23) which are arranged in the power supply casing (21), wherein the battery cell (22) and the circuit board (23) are electrically connected;

the power supply shell (21) comprises a first end face and a second end face which are oppositely arranged, the first end face is provided with a pre-fixing structure matched with the limiting structure, and the second end face is provided with a groove matched with the locking and buckling component (14).

9. The power supply device according to claim 8, wherein the mobile power supply (2) further comprises a wireless charging coil (27) arranged inside the power supply housing (21) and a magnetic shielding sheet (28) arranged between the wireless charging coil (27) and the battery cell (22), and the wireless charging coil (27) is electrically connected with the circuit board (23).

10. The power supply device according to claim 7, characterized in that the mobile power source (2) is one or more.

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