CN216720947U

CN216720947U - Charge-discharge expansion structure and power supply device

Info

Publication number: CN216720947U
Application number: CN202122302957.XU
Authority: CN
Inventors: 周易
Original assignee: Positec Power Tools Suzhou Co Ltd
Current assignee: Positec Power Tools Suzhou Co Ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-06-10
Anticipated expiration: 2031-09-23

Abstract

The utility model provides a charge-discharge extends structure and power supply unit, wherein, charge-discharge extends structure is used for transmitting the electric power of battery package for with electrical apparatus, includes: a housing detachably connectable with the battery pack; a power input portion electrically connectable with the battery pack; a power output portion electrically connected with the power input portion; the power output section includes a wireless charging area for wirelessly charging the electric appliance. The charge and discharge expansion structure meets the multifunctional charge and discharge requirements including wireless and wired charging and discharging in the market by designing the wireless charging area and various output interfaces; in the corresponding power supply device, the space of the battery pack can be saved, the energy storage efficiency of the battery pack is improved, and the power supply device not only can have sufficient electric quantity, but also can realize multifunctional charging and discharging; and the charging and discharging expansion structure can be flexibly matched with the battery pack through designing, manufacturing and using different charging and discharging expansion structures, so that the use flexibility of the power supply device is improved.

Description

Charge-discharge expansion structure and power supply device

[ technical field ] A method for producing a semiconductor device

The utility model relates to the technical field of batteries, in particular to a charging and discharging expansion structure and a power supply device.

[ background of the utility model ]

With the development of technology and the increase of market demand, power supply devices are becoming more versatile to adapt to more and more diversified electric products, including both 3C electronic products such as mobile phones, notebook computers, and the like and various electric tools. Such as 3C electronic products, the wireless charging function is rapidly spreading, but the current power supply device can only provide wired or contact electrical connection, which is difficult to meet the market demand.

[ Utility model ] content

The utility model aims to provide a charging and discharging expansion structure with multiple functions of wireless charging and the like and a power supply device.

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

the utility model provides a charge-discharge expansion structure for with the electric power transmission of battery package for with electrical apparatus, can be connected with battery package detachably, include:

a housing detachably connectable with the battery pack;

the power input part is arranged on the shell and can be electrically connected with the battery pack;

the power output part is arranged on the shell and is electrically connected with the power input part;

wherein the power output part includes a wireless charging area for wirelessly charging the electric appliance.

In one embodiment, the power output part further comprises an output interface externally connected with an electrical appliance, and the output interface is used for outputting 220V or 110V alternating current.

In one embodiment, the output interface is a two-hole jack and/or a three-hole jack disposed on the surface of the housing.

In one embodiment, the wireless charging area is provided with at least one set of electromagnetic coils.

In one embodiment, the wireless charging region and the output interface are located on different side surfaces of the housing.

A power supply device comprising the charge and discharge expansion structure as defined in any one of the above,

and the combination of (a) and (b),

and the charging and discharging expansion structure is electrically connected with the battery pack in a detachable mode.

In one embodiment, a rail interface is arranged on the battery pack, a rail corresponding to the rail interface is arranged on the shell, and the rail slides in or out along the rail interface to connect or separate the charging and discharging expansion structure with or from the battery pack.

In one embodiment, the battery pack is provided with a contact piece conducting electricity to the outside, the power input part comprises a conducting strip capable of being conducted with the contact piece, and when the charge and discharge expansion structure is connected with the battery pack, the contact piece is conducted with the conducting strip.

In one embodiment, the contact plate is disposed in the track interface, and the conductive plate is disposed in the track.

In one embodiment, the power input portion is located on a side surface of the housing close to the battery pack, and the power output portion is located on a side surface of the housing far from the battery pack.

Compared with the prior art, the utility model has the following beneficial effects: the charge and discharge expansion structure meets the multifunctional charge and discharge requirements including wireless and wired charging and discharging in the market by designing the wireless charging area and various output interfaces; in the corresponding power supply device, the space of the battery pack can be saved, the energy storage efficiency of the battery pack is improved, and the power supply device not only can have sufficient electric quantity, but also can realize multifunctional charging and discharging; and through independent design, manufacturing and use the charge-discharge of different grade type and expand the structure, still can arrange with the battery package in a flexible way, improve power supply unit's use flexibility, make it possess multiple adaptation scene.

[ description of the drawings ]

FIG. 1 is a schematic diagram of a power supply apparatus according to the present invention;

FIG. 2 is a schematic view of the power supply apparatus according to the present invention after the charging and discharging expansion structure is disassembled from the battery pack;

FIG. 3 is a schematic view of a charge and discharge expansion structure according to the present invention;

FIG. 4 is a second schematic view of the charge/discharge expansion structure of the present invention;

FIG. 5 is a third schematic view of the charge/discharge expansion structure of the present invention;

fig. 6 is a block diagram of an inverter system of the charge and discharge expansion structure of the present invention;

FIG. 7 is a functional block diagram of a wireless discharging adaptor of the charging and discharging expansion structure according to the present invention;

fig. 8 is a second functional block diagram of the wireless discharge adaptor of the charge and discharge expansion structure of the present invention.

The relevant elements in the figures are numbered correspondingly as follows:

10. charging and discharging expansion structure

11. A shell body, a plurality of first connecting rods and a plurality of second connecting rods,

12. a wireless charging area is arranged in the wireless charging area,

13. an output interface is connected with the output end of the computer,

14. the track is provided with a track which is provided with a plurality of tracks,

15. a conductive sheet is provided on the conductive sheet,

20. a battery pack is provided with a battery pack,

21. the interface of the track is connected with the track,

22. the contact sheet is provided with a contact hole,

23. a USB interface is connected with the USB interface,

24. and (4) locking the groove.

[ detailed description ] embodiments

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting of the scope of the present application. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the utility model of the present application, the meaning of "a plurality" is two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the connection can be mechanical connection or electrical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art through specific situations.

Referring to fig. 1 to 3, a charging and discharging expansion structure 10 for transmitting power of a battery pack 20 to an electric appliance includes a case 11, a power input part, and a power output part. The case 11 is a main structural part of the charge and discharge expansion structure 10, and is used for structurally connecting and supporting various functional parts. The functional part of the charge and discharge extending structure 10 includes a power input portion for inputting power to the charge and discharge extending structure 10, and a power output portion for outputting power from the charge and discharge extending structure 10. Specifically, the case 11 can be detachably coupled to the battery pack 20, so that the charging and discharging expanding structure 10 and the battery pack 20 can be independently replaced or combined. A power input portion and a power output portion may be provided on the case 11 or inside the case 11, the power input portion being electrically connectable to the battery pack 20 to input power, and the power output portion being electrically connected to the power input portion to discharge the input power. Preferably, the output voltage of the battery pack 20 is 20V. In various embodiments, the charge and discharge expansion structure 10 may further include a power buffer portion for temporarily storing power, and an inverter or transformer portion, and is disposed between the power input portion and the power output portion. In order to realize function expansion, the power output part of the charging and discharging expansion structure 10 includes a wireless charging area 12, and the wireless charging area 12 is used for wirelessly charging electrical appliances such as mobile phones and tablet computers.

In one embodiment, the power output portion further includes an output interface 13 externally connected to an electrical appliance, and the output interface 13 is used for externally connecting an electrical tool, a household electrical appliance and other electrical appliances through a plug. In different embodiments, the output interface 13 may be an adapter interface (as shown in fig. 4) of a digital device such as a Micro USB interface, a USB Type C interface, a Lightning interface, or a socket with a plurality of jacks adapted to an electrical appliance such as an electric tool and a household electrical appliance. Although the number and the number of the output interfaces 13 are not limited in the charge and discharge expansion structure 10 of the present embodiment, in one embodiment, the output interfaces 13 are preferably used for outputting alternating current of the output interfaces 13 of 220V or 110V. The output interface 13 is composed of a plurality of jacks and is used for plugging any 220V or 110V electric appliance. The inverter is a converter for converting direct current electric energy in a battery or an accumulator jar into constant-frequency constant-voltage or frequency-modulation voltage-regulation alternating current, and mainly comprises an inverter bridge, control logic and a filter circuit. The output interface 13 in the present embodiment converts the ac power into 220V or 110V power and outputs the converted ac power to the electric charging device inserted into the output interface 13. Specifically, referring to fig. 6, if the inverter includes a boosting unit, a control unit, an inverting unit and a feedback unit, if a battery pack with an output voltage of 20V is used, the voltage is boosted to a direct current high voltage of 310V or 155V by the boosting unit, and then the direct current high voltage is converted into a 220V or 110V alternating current by the inverting unit, and the change of the load on the output side of the inverter is fed back to the boosting unit by the feedback unit to adjust the duty ratio of the inverter, so as to keep the direct current high voltage output stably.

Referring to fig. 1-3, in one embodiment, the output interface 13 is a two-hole jack and/or a three-hole jack disposed on the surface of the housing 11. Two-jack jacks are typically used to output 10A power and three-jack jacks are used to output 10A or 16A power, and may be specifically regulated by an inverter or the like in the housing 11. According to the respective practical requirements, the two-hole insertion hole and the three-hole insertion hole may be provided in the charge and discharge extending structure 10 at the same time, or only one of them may be provided.

In one embodiment, the wireless charging zone 12 is provided with at least one set of electromagnetic coils. Each group of electromagnetic coils is composed of a plurality of coils and generates an electromagnetic field area for charging electric appliances. In this embodiment, the electromagnetic coil may be connected to the power source via the wireless discharge adapter. Specifically, referring to fig. 7, the electromagnetic coil (wireless discharge coil) may be in signal connection with the interface circuit of the input current of the wireless charging area 12 through a wireless discharge integrated circuit chip (IC) and a Micro Control Unit (MCU) respectively disposed in the wireless discharge adaptor, so as to control the electromagnetic coil to discharge. Of course, referring to fig. 8, the IC and the MCU may also be integrated with the SOC (system on chip) in the wireless discharge adaptor.

Because the electromagnetic coil and the electrical appliance transmit energy through the magnetic field, and the electromagnetic coil and the electrical appliance are not connected through wires, the charging and discharging expansion structure 10 and the electrical appliance can be in a conductive area without exposure.

In one embodiment, the wireless charging area 12 and the output interface 13 are located on a surface of the same side of the housing 11, which is generally a surface facing a user in a use state, for example, when the charging and discharging expansion structure 10 is horizontally placed, the surface where the wireless charging area 12 and the output interface 13 are located is an upper surface of the housing 11. In order to optimize the design, save space and ensure the wireless charging effect, in one embodiment, the wireless charging area 12 and the output interface 13 are located on the surface of different sides of the housing 11, so as to prevent the wireless charging area 12 and the output interface 13 from invading and interfering with each other, and the wireless charging effect is not affected. Preferably, when the charging and discharging expansion structure 10 is horizontally arranged, the output interface 13 is located on the side surface of the housing 11 (as shown in fig. 5), and at this time, the output interface 13 can also prevent the pollutants such as dust falling from the top from entering the interface.

The embodiment of the utility model also discloses a power supply device which comprises the charging and discharging expansion structure 10. The power supply device further includes a battery pack 20 for storing electric power, wherein the charge and discharge expansion structure 10 is detachably connected to the battery pack 20. In this embodiment, the battery pack 20 itself may have a charging and discharging function and a corresponding interface, such as a USB interface 23 disposed on a side surface of the battery pack 20. When the charge and discharge expansion structure 10 is mounted and connected to the battery pack 20, the charge and discharge function of the power supply device can be expanded, for example, the battery pack 20 having only a single kind of interface can use multiple interfaces to release electric energy to the outside, or the battery pack 20 having only a wired interface can use a wireless connection to release electric energy to the outside. Corresponding coils, power converters or inverters and the like can be integrated in the charge-discharge expansion structure 10, so that the space of the battery pack 20 is saved, the energy storage efficiency of the battery pack 20 is improved, the power supply device can have sufficient electric quantity, and multifunctional charge and discharge can be realized. And through the independent design, make and use different types of charge-discharge expansion structure 10, still can nimble collocation with battery package 20, improve power supply unit's use flexibility, make it possess multiple adaptation scene to make battery package 20 have the commonality, reduce production and use cost.

In order to facilitate the installation or the removal of the charging and discharging expansion structure 10, in one embodiment, the battery pack 20 is provided with a rail interface 21, and the housing 11 is provided with a rail 14 corresponding to the rail interface 21. The track 14 slides in or out along the track interface 21 by pushing and pulling the housing 11 of the charging and discharging expansion structure 10, so that the charging and discharging expansion structure 10 is connected with or separated from the battery pack 20. In this embodiment, the tail end of the rail interface 21 may be provided with a bayonet, and the corresponding end of the rail 14 may be provided with a corresponding clip, so that when the charging and discharging expansion structure 10 and the battery pack 20 are installed in place, the charging and discharging expansion structure 10 and the battery pack 20 are fixed by the clip being clamped with the bayonet, thereby preventing the charging and discharging expansion structure 10 and the battery pack 20 from being loosened and affecting the power-on.

Except for the rail interface 21, the upper surface of the battery pack 20 is provided with only one locking groove 24, so that the overall shape of the battery pack 20 is smooth, the battery pack is convenient to be matched and connected with accessories such as the charging and discharging expansion structure 10, and the size of the battery pack is smaller. The mated accessory may be provided with a button and latch that locks the accessory to the battery pack 20 by engaging the locking slot 24.

In addition, the battery pack 20 is provided with a contact plate 22 conducting electricity to the outside, the battery pack 20 can be electrically connected to the outside through the contact plate 22, the power input portion includes a conductive plate 15 conducting with the contact plate 22, when the charging and discharging expansion structure 10 is connected to the battery pack 20, the contact plate 22 is connected to and conducted with the conductive plate 15, and further, power is provided to the power output portion. Preferably, the conductive sheet 15 and the output interface 13 are respectively located on one side surface of the case 11 close to the battery pack 20 and the other side surface far from the battery pack 20 in a state where the charge and discharge expansion structure 10 and the battery pack 20 are mounted in place.

In one embodiment, contact pads 22 are provided in track interface 21 and conductive pads 15 are provided in track 14. Preferably, the contact piece 22 and the track interface 21 are integrally formed, and the contact piece 22 is arranged on the bottom surface or the side surface of the track interface 21; the conductive sheet 15 is integrally formed with the rail 14, and the conductive sheet 15 is disposed on the bottom surface or the side surface of the rail 14.

In one embodiment, the power output portion is located on a side surface of the housing 11 away from the battery pack 20 when the charge and discharge expansion structure 10 and the battery pack 20 are mounted in place, and the power input portion is located on a side surface of the housing 11 close to the battery pack 20. Specifically, when the battery pack 20 is horizontally placed, the surface on which the power output part is located is the upper surface of the housing 11, the lower surface of the housing 11 is attached to the upper surface of the battery pack 20, and the power input part is located on the lower surface of the housing 11.

In light of the foregoing description of the preferred embodiments according to the present application, it is to be understood that various changes and modifications may be made without departing from the spirit and scope of the utility model. The technical scope of the present application is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a charge-discharge expansion structure for with the electric power transmission of battery package for with electrical apparatus, its characterized in that includes:

a housing detachably connectable with the battery pack;

a power input portion electrically connectable with the battery pack;

a power output portion electrically connected with the power input portion;

wherein the power output part includes a wireless charging area for wirelessly charging the electrical instrument.

2. The charging and discharging expansion structure of claim 1, wherein the power output part further comprises an output interface for externally connecting an electrical appliance, and the output interface is used for outputting 220V or 110V alternating current.

3. A charge and discharge expansion structure according to claim 2, wherein the output interface is a two-hole jack and/or a three-hole jack provided on the surface of the housing.

4. A charge and discharge extension according to claim 1, characterised in that the wireless charging zone is provided with at least one set of electromagnetic coils.

5. A charging and discharging extension as claimed in claim 2, wherein the wireless charging zone and the output interface are located on different side surfaces of the housing.

6. A power supply device comprising the charge and discharge expansion structure according to any one of claims 1 to 5,

and the combination of (a) and (b),

7. The power supply device according to claim 6, wherein a rail interface is provided on the battery pack, a rail corresponding to the rail interface is provided on the housing, and the rail slides in or out along the rail interface to connect or separate the charge and discharge expansion structure with or from the battery pack.

8. The power supply device according to claim 7, wherein the battery pack is provided with a contact piece that conducts electricity to the outside, the power input portion includes a conductive piece that can be conducted with the contact piece, and when the charge and discharge expansion structure is connected to the battery pack, the contact piece is conducted with the conductive piece.

9. The power supply apparatus of claim 8, wherein the contact tab is disposed in the rail interface and the conductive tab is disposed in the rail.

10. The power supply device according to claim 6, wherein the power input portion is located on a side surface of the housing close to the battery pack, and the power output portion is located on a side surface of the housing away from the battery pack.