CN213093907U

CN213093907U - Portable power supply device

Info

Publication number: CN213093907U
Application number: CN202021944526.2U
Authority: CN
Inventors: 纪春熙
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-08
Filing date: 2020-09-08
Publication date: 2021-04-30
Anticipated expiration: 2030-09-08

Abstract

The utility model provides a portable power supply device, include: an upper housing; the lower shell is matched with the upper shell to form a main shell, and the secondary battery and the control circuit board are accommodated in the main shell; a secondary battery fixed in the main case; a control circuit board electrically connected to the secondary battery; the charging wire is provided with a main body part and a head part, the main body part is arranged from the bottom of the lower shell to the top in an extending mode and is positioned in a second cavity formed in the side edge of the main shell; the head has square cross-sectional shape to be perpendicular with the main part, be located the corner position at main casing body top, the charging wire is inside to be provided with electrically conductive cable. The main housing forms a third cavity for receiving the head of the charging cord at a corner location of the top portion extending along the charging cord, the outside of the corner location forming a triangular notch and forming a complete right angle corner when the square head is inserted into the third cavity, wherein the square head is at least partially exposed outside the triangular notch and forms a right triangle.

Description

Portable power supply device

Technical Field

The utility model belongs to the technical field of power supply unit technique and specifically relates to portable power source.

Background

The portable power source, also called as a charger, is a power source device that uses a rechargeable battery as energy storage, and can charge portable devices such as computers and mobile phones to supplement electric energy and prolong the service life.

Present portable power source adopts built-in data line or uses independent charging wire, for example the sharing treasured that charges among the prior art, insert the charging wire or fill in the holding tank that power supply body surface set up, but take and accomodate the time very inconvenient, in order to practice thrift the space and pleasing to the eye, the holding tank is done very little, the charging wire only remains very little analysis with holding tank quality control, the charging wire need be scratched out when taking out, it is very inconvenient, and the plug-in direction takes place the deviation and causes the damage of the head that charges easily when accomodating. In the method of using the independent data line, a charging line needs to be prepared separately, a separate storage space needs to be prepared, and the data line is easily lost.

SUMMERY OF THE UTILITY MODEL

According to the utility model discloses a first aspect of purpose provides a portable power supply device, include: an upper housing; the lower shell and the upper shell are matched to form a main shell, and a first cavity for accommodating the secondary battery and the control circuit board is defined in the main shell; a secondary battery fixed in the main case; the control circuit board is electrically connected with the secondary battery, is fixed in the main shell and is positioned at the bottom of the main shell; the charging wire is provided with a main body part and a head part, the main body part is arranged from the bottom of the lower shell to the top in an extending mode and is positioned in a second cavity formed in the side edge of the main shell; the head part is of a square cross-sectional shape, is vertical to the main body part and is positioned at the corner position of the top of the main shell, a conductive cable is arranged in the charging wire, one end of the charging wire is electrically connected with the control circuit board, and the other end of the charging wire is electrically connected with an interface arranged on the head part;

wherein the main housing forms a third cavity for accommodating the head of the charging cord at a corner position of the top extending along the charging cord, the outside of said corner position forming a triangular notch and forming a complete right angle corner when the square head is inserted into the third cavity, wherein the square head is at least partially exposed outside the triangular notch and forms a right triangle.

When the square head is inserted into the main shell, the whole power supply device forms a square whole, the square head is beneficial to holding and attractive, and the part of the front part of the square head with the metal interface is inserted into the main shell to protect the interface part. Meanwhile, the triangular part at the rear part of the square head is exposed outside, so that the square head can be conveniently inserted into and pulled out of the main shell from the outside, and the operation can be conveniently realized by twisting the index finger and the thumb when the square head is used.

In a preferred embodiment, the square head is provided with grains on the surface of the right-angled triangle exposed outside the triangular notch.

Preferably, the top of the main housing further comprises a fourth cavity connected with the third cavity, and a pushing aid block is arranged on the surface of the fourth cavity and used for pushing the head of the charging wire inserted into the third cavity along the fourth cavity and the third cavity.

In this embodiment, still set up the boosting piece, from this in the use, when using the charging wire, need take out the interface, the accessible slides the boosting piece and pushes out partly with the head of charging wire outwards gently to more do benefit to the operation of taking of hand to the head. After the use is finished, when the head of the charging wire is pushed into the third cavity of the main shell, the boosting block is reset through the square head.

In a further embodiment, the booster block itself may be provided with a return mechanism, for example a spring return mechanism, between the bottom of the booster block and the top of the main housing, the spring return mechanism having a plane of movement horizontally parallel to the direction of movement of the booster block, through which a pre-load is provided to cause the booster block to have a tendency to move towards the initial position. So, when the head of charging wire was taken out to needs, promote the boosting piece from the outside through operator's hand, overcome spring return mechanism's pretightning force for the boosting piece promotes square head and follows main casing body roll-off, and after the power release of applying force of operator's hand, utilize spring return mechanism's pretightning force to restore to the throne the boosting piece.

Preferably, the boost block is arranged to contact the square head when the square head is inserted into the main housing. Wherein the boost block is arranged in a flat structure and is slidably retained on top of the main housing.

Optionally, the head portion of the main housing is provided with a recess for at least partially receiving the boost block therein, so as to avoid discomfort caused by the boost block protruding too far from the head portion of the main housing.

Optionally, a limit stop is formed between the third cavity and the fourth cavity, and is used for limiting the stroke of the boosting block and preventing the boosting block from sliding excessively.

Preferably, the square head is further provided with a step surface which is in butt joint with the boosting block. Therefore, when the boosting block pushes the square head, the interface part can be prevented from being directly pushed to cause damage to the interface part. The protection of the interface part is realized through the butt joint with the step surface.

Preferably, the surface of the boosting block is provided with anti-skid lines, so that an operator can apply external force from the outside to achieve an anti-skid effect.

Preferably, the outer surface of the upper case is provided with at least one LED display lamp, which is provided in connection with the control circuit board, for indicating the remaining amount of the secondary battery. Therefore, the power detection circuit, such as a voltage sampling circuit, can be arranged on the control circuit board in a matched manner, and is used for monitoring and indicating the battery residue of the portable power supply device.

The interface is one of mini-USB, Micro-USB, Type-C and Lighting.

Among them, in order to facilitate the miniaturization and weight reduction of the portable power supply device, the secondary battery is a flat lithium polymer battery.

Preferably, the main body part and the head part of the charging wire are both rubber pieces.

It should be understood that all combinations of the foregoing concepts and additional concepts described in greater detail below can be considered as part of the inventive subject matter of the present disclosure unless such concepts are mutually inconsistent. In addition, all combinations of claimed subject matter are considered a part of the inventive subject matter of this disclosure.

The foregoing and other aspects, embodiments and features of the present teachings can be more fully understood from the following description taken in conjunction with the accompanying drawings. Additional aspects of the present invention, such as features and/or advantages of exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of the specific embodiments in accordance with the teachings of the present invention.

Drawings

The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural diagram of the portable power supply device of the present invention.

Fig. 2 is a schematic diagram of a cavity structure in the upper case of the portable power supply device of the present invention.

Fig. 3 is a schematic view of the charging wire of the portable power supply device of the present invention being inserted into the main casing.

Fig. 4 is a schematic diagram of the charging wire of the portable power supply device of the present invention after being taken out.

Detailed Description

For a better understanding of the technical content of the present invention, specific embodiments are described below in conjunction with the accompanying drawings.

In this disclosure, aspects of the present invention are described with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. Embodiments of the present disclosure are not necessarily intended to include all aspects of the invention. It should be appreciated that the various concepts and embodiments described above, as well as those described in greater detail below, may be implemented in any of numerous ways, as the disclosed concepts and embodiments are not limited to any implementation. Additionally, some aspects of the present disclosure may be used alone or in any suitable combination with other aspects of the present disclosure.

As shown in fig. 1-4, the portable power supply device of the present invention includes an upper housing 10 and a lower housing 20, which can adopt the same structure, especially the symmetrical structure design, to facilitate the molding by the mold and realize the symmetrical assembly. The upper and

lower housings

10, 20 are preferably made of rigid plastic material, which provides a stable support for the internal components and also provides insulation.

In an alternative embodiment, heat dissipation holes with reasonable shape and distribution can be disposed on the upper housing 10 and/or the lower housing 20 at appropriate positions, so as to facilitate heat dissipation during high-performance charging and discharging of the power supply device.

In other embodiments, the upper housing 10 and/or the lower housing 20 may be made of metal to facilitate heat dissipation. In the embodiment using metal material, an insulating layer, such as insulating paper, may be disposed on the inner surface of the metal upper casing and the metal lower casing to insulate the internal circuit and the electronic components.

The upper case 10 and the lower case 20 cooperate to form a main case. In an alternative embodiment, the edges of the upper housing 10 and the lower housing 20 that are joined may be provided with a snap fit, with the locking between the two being achieved by a snap fit.

In other embodiments, the upper housing 10 and the lower housing 20 may be fastened by micro screws or bolts.

Fig. 1 schematically shows an energy storage element and a circuit board in a main housing. As shown in fig. 2, the interior of the main housing defines a first cavity 21 for accommodating the secondary battery 30 and the control circuit board 40.

And a secondary battery 30 fixed in the main case. In order to facilitate the miniaturization and weight reduction of the portable power supply device, the secondary battery 30 is preferably a flat lithium polymer battery.

In the example shown in fig. 1, a monolithic secondary battery is taken as an example.

In some other embodiments, the secondary battery 30 may also be a combination of a plurality of battery cells (cells), for example, a combination in series and/or parallel to achieve a higher discharge current or a higher storage capacity, or a combination of a plurality of battery modules (modules) composed of battery cells to achieve a higher discharge current or a higher storage capacity.

In the embodiment of the present invention, the control circuit board 40 especially adopts a PCB circuit board, is electrically connected to the secondary battery 30, and is fixed in the main casing and located at the bottom of the main casing. The control circuit board 40 may be provided with a power management circuit for managing the charging and discharging processes of the secondary battery, and the power management circuit may adopt an integration of an existing charging circuit, a discharging circuit, a detection circuit, and a protection circuit, for example, an IC chip integrating charging and discharging management as a main control to implement charging and discharging management. The detection circuit detects the residual quantity of the battery unit, the charging and discharging voltage, the charging and discharging current and the battery temperature, so that the charging and discharging process is monitored. The protection circuit such as overcharge protection, overdischarge protection, overheat protection, etc. may be implemented by an existing circuit and will not be illustrated in the present embodiment.

The charging cord 50 has a main body 51 and a head 52. The main body part and the head part are preferably made of rubber. As shown in fig. 1, 3 and 4, the main body 51 has a flat strip shape, is disposed to extend from the bottom of the main housing to the top, and is located in the second cavity 25 formed on the side of the main housing.

The head portion 52 has a square sectional shape and is perpendicular to the body portion 51. The head 52 is located at a corner of the top of the main housing. It should be understood that the utility model discloses a charging wire 52 is inside to be provided with electrically conductive cable, and one end is connected with control circuit board 40 electricity, and the other end is connected with the interface 53 electricity that the head set up to realize the transmission of electric energy along secondary battery-charging wire main part-interface-consumer, aforementioned consumer includes but not limited to the smart mobile phone, panel computer, notebook computer, handheld reading ware, portable network equipment etc. that support aforementioned interface 53. In another embodiment, when the power interface of the electric device is not suitable for the interface 53, the interface 53 may be connected to the electric device through the interface adapter to implement power transmission.

Optionally, the interface is one of mini-USB, Micro-USB, Type-C and Lighting.

As shown in connection with fig. 1-4, in particular in connection with fig. 3 and 4, the main housing forms a third cavity 23 for accommodating the head 52 of the charging cord at a corner position of the top part extending along the charging cord, and forms a triangular notch outside the corner position. The complete right-angled corner is formed when the square head 52 is inserted into the third cavity 23 of the main housing, wherein the square head 52 is at least partially exposed outside the triangular notch and forms a right-angled triangle.

Thus, when the square head 52 is inserted into the main housing, the whole power supply device forms a square whole, which is convenient for holding and beautiful, and the part of the front part of the square head with the metal interface is inserted into the main housing, so as to protect the interface part. Meanwhile, the triangular part at the rear part of the square head 52 is exposed outside, so that the square head is convenient to insert into and pull out from the main shell from the outside, and the operation can be conveniently realized by twisting the index finger and the thumb when in use.

In a preferred embodiment, the outer surface of the square head 52, the surface of the right triangle exposed outside the triangular notch, is provided with a texture 55, so as to facilitate the operation of the operator with the fingers.

In an alternative embodiment, the top of the main housing further comprises a fourth cavity 22 connected to the third cavity 23, and a boost block 60 is arranged on the surface of the fourth cavity, the boost block 60 being arranged to push the head 52 of the charging cord inserted into the third cavity in the direction of the

fourth cavity

22, 23.

In the use, when using the charging wire, need take out interface 52, the head 52 of accessible slip boosting piece 60 will charge the line pushes out partly outwards gently to the operation of taking of head of more being favorable to the hand. After use, the boost block 60 can be reset by the square shaped head 52 when the head 52 of the charging cord is pushed into the third cavity of the main housing.

In further embodiments, the booster block 60 itself may be provided with a return mechanism, such as a spring return mechanism, between the bottom of the booster block and the top of the main housing, the spring return mechanism having a plane of movement that is horizontally parallel to the direction of movement of the booster block, through which a pre-load is provided to cause the booster block to have a tendency to move towards the initial position. So, when the head of charging wire was taken out to needs, promote the boosting piece from the outside through operator's hand, overcome spring return mechanism's pretightning force for the boosting piece promotes square head and follows main casing body roll-off, and after the power release of applying force of operator's hand, utilize spring return mechanism's pretightning force to restore to the throne the boosting piece.

In conjunction with the illustration, the boost block 60 is arranged to contact the square head 52 when the square head is inserted into the main housing, whereby the head 52 can be pushed directly by the boost block. The booster block 60 is particularly preferably of a flat configuration and is slidably retained on top of the main housing.

In the head position of the main housing, shown in connection with fig. 1, a recess 62 is provided for at least partially receiving the booster block therein, avoiding discomfort caused by the booster block 60 protruding too far out of the head of the main housing.

As shown in fig. 1 and 2, a limit stopper 24 is formed between the third cavity 23 and the fourth cavity 22 to limit the stroke of the boost block, so as to prevent the boost block from sliding excessively.

As shown in fig. 4, the square head 52 is preferably provided with a step surface for abutting against the booster block. Thus, when the boosting block 60 pushes the square head, the interface portion can be prevented from being directly pushed, and the interface portion can be prevented from being damaged. The protection of the interface part is realized through the butt joint with the step surface.

Referring to fig. 1, the outer surface of the upper case 10/lower case 20 may be further provided with at least one LED display lamp 70 disposed to be connected to the control circuit board for indicating the remaining amount of the secondary battery. Therefore, the power detection circuit, such as a voltage sampling circuit, can be arranged on the control circuit board in a matched manner, and is used for monitoring and indicating the battery residue of the portable power supply device.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The present invention is intended to cover by those skilled in the art various modifications and adaptations of the invention without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention is subject to the claims.

Claims

1. A portable power supply device, comprising:

an upper housing;

the lower shell and the upper shell are matched to form a main shell, and a first cavity for accommodating the secondary battery and the control circuit board is defined in the main shell;

a secondary battery fixed in the main case;

the control circuit board is electrically connected with the secondary battery, is fixed in the main shell and is positioned at the bottom of the main shell;

the charging wire is provided with a main body part and a head part, the main body part is arranged from the bottom of the lower shell to the top in an extending mode and is positioned in a second cavity formed in the side edge of the main shell; the head part is of a square cross-sectional shape, is vertical to the main body part and is positioned at the corner position of the top of the main shell, a conductive cable is arranged in the charging wire, one end of the charging wire is electrically connected with the control circuit board, and the other end of the charging wire is electrically connected with an interface arranged on the head part;

2. The portable power supply device as claimed in claim 1, wherein the square head has a portion of the surface of the right triangle exposed outside the triangular notch with a texture.

3. The portable power supply device as claimed in claim 1, wherein the top of the main housing further comprises a fourth cavity connected to the third cavity, and a pushing aid is disposed on a surface of the fourth cavity for pushing the head of the charging cord inserted into the third cavity along the fourth cavity and the third cavity.

4. The portable power supply unit according to claim 3, wherein the square head further has a step surface for abutting against the boost block.

5. The portable power supply device according to claim 3, wherein a surface of the boost block is provided with an anti-slip pattern.

6. The portable power supply apparatus as claimed in claim 1, wherein the outer surface of the upper case is provided with at least one LED display lamp disposed to be connected to the control circuit board for indicating the remaining amount of the secondary battery.

7. The portable power supply apparatus of claim 1, wherein the interface is one of mini-USB, Micro-USB, Type-C, and Lighting.

8. The portable power supply device according to claim 1, wherein the secondary battery is a flat lithium polymer battery.

9. The portable power supply device according to claim 1, wherein the main body portion and the head portion of the charging cord are both rubber members.