WO2009094833A1

WO2009094833A1 - Power converter using elastic belts to fix batteries

Info

Publication number: WO2009094833A1
Application number: PCT/CN2008/002049
Authority: WO
Inventors: Ming Li
Original assignee: Ming Li
Priority date: 2008-01-02
Filing date: 2008-12-23
Publication date: 2009-08-06
Also published as: CN101478063B; CN101478063A

Abstract

A battery charger and a power converter both of which use elastic belts (24, 221, 222, 37, 321, 331) to fix batteries (25, 35, 50). The battery charger or the power converter comprises a charger or power converter body (22, 30), a separable base (27, 36) and one or more elastic belts (24, 221, 222, 37, 321, 331). The body (22, 30) is connected with the base (27, 36) through the elastic belts (24, 221, 222, 37, 321, 331). Batteries (25, 35, 50) are placed between the body (22, 30) and the base (27, 36) and are fixed by the elastic force generated by the tension of the elastic belts (24, 221, 222, 37, 321, 331).

Description

Power converter using an elastic band to fix a battery

The invention belongs to the technical field of battery chargers and power converters, in particular to a power converter using an elastic band to fix a battery, and fixes the battery on the main body of the charger and the power converter through an elastic band, thereby conveniently reducing the charger. Carry the volume. Background technique

With the increasing travel and travel business, people often need to carry a small number of devices, and the battery chargers of these devices also need to occupy a considerable amount of space, which is inconvenient for travel. When you are outside, you will often encounter a situation in which the device is powered off due to forgetting to charge or overuse. People also need to carry some small power converters to convert the standard battery power that can be easily purchased to these digital devices. These converters will also take up a lot of space when not in use. Further exacerbating the burden of travel

How to further reduce the size of these chargers and converters, so that it takes up as little space as possible when not in use, has become a problem to be solved. Since the conventional battery charger and power converter need to be connected to the battery, it is necessary to leave room for accommodating the battery when not in use, even if the charging circuit and the conversion circuit can be made smaller, and for the above reasons, the size of the charger is Miniaturization has brought difficulties. Summary of the invention

The present invention overcomes the above disadvantages and provides a power converter that uses a flexible strap to fix a battery with a simple structure and flexibility.

The technical solution adopted by the present invention to solve the technical problem thereof is: a power converter using an elastic band to fix a battery, a charger and a power converter body, a detachable charger and a power converter bottom frame, one or several It consists of an elastic band made of an elastic material that can be stretched and deformed to produce an elastic force. An elastic band connects the charger and power converter body to the bottom frame. After stretching the elastic band, the battery is placed between the main body and the bottom frame, and the elastic force generated by the elastic band stretching combines the battery and the main body so that the battery electrode and the electrode on the main body are in point contact. It is also possible to directly bond the battery and the body from the main body and the elastic band without the bottom cover.

The elastic band is made of an elastic material capable of generating elastic force when stretched, and the elastic band can form a closed ring connected between the main body and the frame, or can have a hook or a connection at both ends. The elastic band of the device is connected to the connecting groove on the main body and the frame to connect the main body and The bottom covers are connected together. The elastic band of different lengths and widths can be replaced according to the shape of the connected battery. The elastic band can also be made of a resilient metal spring or other elastically stretchable material.

The novel structure of the present invention resides in that the internal shape of the main body and the bottom cover conforms to the shape of the battery to be connected, and the electrodes on the main body correspond to the position of the electrodes on the battery. The edges of the main body and the bottom cover have connecting grooves for connecting the elastic bands, and the elastic bands connect the main body and the bottom cover together through the connecting grooves.

The novel structure according to the present invention is such that the main body and the bottom cover can be provided with a magnet or one of the magnets and the other can be made of a ferrous material. When the battery is not connected, the main body and the bottom cover can be mutually attracted.

The novel structure of the present invention is further characterized in that the elastic band attached to the main body can be directly fitted over the battery case, and the main body and the battery are directly connected together without a bottom cover.

The novel structure of the present invention is characterized in that, for some battery bottom electrodes to be connected to the main body electrode: the main body may also have a retractable power cord and a bottom cover connected, and the battery and the main body and the bottom cover are used in the elastic band When combined, the retractable power cord connects the bottom electrode of the battery to the electrode of the body. The power cord can be telescoped into the inside of the main body when the battery is removed.

Compared with the existing battery charger and power converter, the novel structure using the elastic band and the charger body of the present invention can eliminate the space for accommodating the battery when the charger or the power converter is not used, thereby Larger space for the charger and power converter. It is more convenient for consumers to use. DRAWINGS

1 is a schematic structural view of a first elastic band in the present invention;

Figure 2 is a schematic view showing the structure of an elastic band constituting the elastic band of Figure 1;

3 is a schematic structural view of a second elastic band in the present invention;

4 is a schematic structural view of a third elastic band in the present invention;

FIG. 5 is a schematic structural view of a use state of the first embodiment; FIG.

6 is a schematic structural view of the first embodiment in a non-use state;

7 is a schematic view showing the installation of a retractable cable and a reel according to Embodiment 1;

Figure 8 is a schematic structural view of a variant of the first embodiment; 9 is a schematic structural view of a use state of the second embodiment;

10 is a schematic structural view of a second embodiment in a non-use state;

Figure 11 is a schematic view showing a simplified structure of the second embodiment;

12 is a schematic view showing another simplified structure of the second embodiment;

Figure 13 is a schematic structural view of the third embodiment;

Figure 14 is a schematic structural view of a variant of the third embodiment;

Figure 15 is a schematic view showing the structure of the use state of another variant of the third embodiment;

Figure 16 is a schematic view showing the structure of the non-use state of Figure 15;

Figure 17 is a schematic structural view of Embodiment 4;

18 is a schematic structural view of a variation of the fourth embodiment;

Figure 19 is a schematic view showing the structure of an elastic band using a polymer elastic band;

Figure 20 is a schematic view showing the structure of the elastic spring using a metal spring;

Figure 21 is a schematic view showing the structure of the elastic band using the elastic band;

22 is a schematic view of the structure without using the bottom cover. The best way to achieve your invention

As shown in FIG. 1, 2, 3, and 4, in the elastic ring belt example of the present invention, the elastic band used may be made of an elastic material which can generate elastic force when stretched and deformed as shown in FIG. 3. The closed loop belt shown in the middle may also be an elastic elastic material made of an elastic material with hooks at both ends as shown in Fig. 2, and the two ends are hooked together to form an endless belt as shown in Fig. 1. It is also possible to have both ends of the elastic band as shown in Fig. 4 with hooks attached to the connection grooves on the charger or power converter body and the bottom cover.

Embodiment 1: As shown in FIG. 5, an example of a charger for fixing a standard model battery using an elastic band corresponds to a charger that uses an AC power source to charge a battery of a standard model. 21 is a power plug, and the main body 22 and the bottom cover 27 have a connecting groove 26, and the elastic band 24 can bond the main body 22 and the bottom cover 27 through the connecting groove. 20 is a circuit board in the main body, and includes an electrode and a charging circuit. The battery 25 can be secured between the main body 22 and the bottom case 27 by the elastic force of the elastic band after the elastic band 24 is pulled. And the battery electrode and the body and the electrode on the bottom cover correspond. The main body 22 may be internally provided with a magnet 23, and the bottom cover 27 may be made of a magnetic substance. The main body and the bottom cover may be magnetically attracted together when the charger is not in use to form a structure as shown in FIG. Thereby greatly reducing the carrying capacity of the charger. This embodiment can also charge two standard batteries. In the standard When the battery is charging, if the battery is charged in parallel, some of the battery electrodes need to be under the charger. The charger needs to have corresponding electrodes on the bottom cover and be connected to the circuit board. As shown in Figure 7, it is installed inside the main body 22. The retractable cable 211 can be received and pulled out by a reel 210 with a spring. When the battery 25 is loaded, the retractable cable 211 is simultaneously pulled out as a connecting wire between the bottom cover and the main body. When the battery is removed, the reel 211 automatically accommodates the retractable cable 211 in the main body 22 by an internal spring.

In a variant of the embodiment, when charging or performing power conversion for a battery to be used in parallel, the charger needs to have corresponding electrodes on the bottom cover and interconnect with the main circuit board, and the elastic band can be used with conductive properties. The elastomeric material consists of and serves as a power lead between the battery and the board. As shown in Fig. 8, the elastic band is composed of a resilient metal spring 222 and a metal chain 221, and the two ends of the metal chain 221 are connected to the main circuit board through the wires 223 and the bottom cover battery electrodes as power supply leads, respectively.

Embodiment 2: As shown in FIG. 9, a schematic diagram of a multi-function charger for charging a rechargeable digital device battery using an elastic band and a bottom cover for charging with an AC power source and a USB with a power conversion function. The charger body 30 is connected to the bottom cover 36 via an elastic band 37, and the internal structure of the main body and the bottom cover is matched with the electrode arrangement 39 and the digital device battery 35 to be charged, and the digital battery 35 is placed in the main body 30 and when necessary. Between the bottom covers 36, the battery and the charger are combined by the elastic force generated by stretching the elastic band 37. The foldable AC power plugs 31 can be stacked one on top of each other when not in use. After the AC power supply is connected through the power plug 31, the internal charging circuit of the charger can be used to output a suitable charging voltage to charge the digital battery 35. You can also use the USB port 33 on the main unit 30 to connect to a computer or other device with a USB power output connector to charge the digital device battery 35 with a USB power source. The charger also has a voltage conversion function, and the power of the digital device battery 35 can be converted to obtain a suitable voltage to be output through the output interface 34 of the main body 30. The illustrated output interface example is a USB output port, and can also be other forms of output interfaces. ), charging other digital devices. When the charger is not in use, the main body and the bottom cover can be folded together to reduce the volume to form a structure as shown in FIG.

After the embodiment is simplified, as shown in Fig. 11, an example of a charger for charging only the digital battery 35 with the AC power source 301 is shown. As shown in FIG. 12, an example of a charger for charging the digital battery 35 using a USB power source with a retractable USB interface 311.

Embodiment 3, as shown in FIG. 13 , the charger directly connects the battery with the elastic band without using the bottom cover. It is intended that the original connecting groove on the main body 30 is changed from the two sides of the main body to the side object intermediate position 322, and the elastic band 321 directly fixes the battery 35 and the main body 30 without connecting the bottom cover 36. 1 is a variant of the embodiment, 330 is an example of a charger with a magnetic bracket 332 on the elastic band 331 instead of the bottom cover 36. The bracket 332 is attached to the elastic band 331, and the width of the metal bracket 332 is Corresponding to the thickness of the battery, it is more advantageous to combine the battery with the main body. 15 is a diagram showing an example of a charger for charging a digital battery using a USB power source using a retractable USB interface with a bracket 332 instead of the bottom cover 35. When the charger is not in use, the magnetic bracket can be attracted to the main body to reduce the volume of the charger to form the structure shown in FIG.

Embodiment 4, FIG. 17 is a schematic diagram of a power converter for fixing a standard type battery using an elastic band, and the port output is 51. The digital device charging interface is specially prepared for the charging interface of different digital devices, and can be directly connected to the digital device for charging. powered by. In Figure 18, 52 is the standard DC output interface, and the output is suitable for charging various digital devices.

The present invention can use different elastic materials to fix the battery charger. In Figure 19, the polymer elastic band is used to fix the battery. In the figure, 20 uses a metal spring to provide a spring-loaded charger and a battery. In the figure, 21 uses an elastic band to provide a spring-loaded charger and battery. In the figure, 22 is the bottom cover.

It is to be noted that the description of the above embodiments is only for helping to understand the method of the present invention and its core ideas; at the same time, for those skilled in the art, according to the idea of the present invention, there will be a specific embodiment and application range. The details of the description are not to be construed as limiting the invention. Industrial applicability

Compared with the existing battery charger and power converter, the novel structure using the elastic band and the charger body of the present invention can eliminate the space for accommodating the battery when the charger or the power converter is not used, thereby Larger space for the charger and power converter. It is more convenient for consumers to use.

Claims

Claims: A battery charger and power converter for fixing a battery using an elastic band, characterized by: a charger and a power converter body, a detachable charger and a power converter bottom frame, one or several with An elastic band made of an elastic material that stretches and deforms. The elastic band connects the charger and the main body of the power converter to the bottom frame. After stretching the elastic band, the battery is placed between the main body and the bottom frame, and stretched by the elastic band. The generated elastic force combines the battery and the main body so that the battery electrode and the electrode on the main body are in point contact, and the battery and the main body can be directly joined by the main body and the elastic band without the bottom cover.

2. The battery charger and power converter using an elastic band-fixing battery according to claim 1, wherein: the elastic band is made of an elastic material capable of generating an elastic force when stretched, and is elastic. The endless belt is connected between the main body and the frame by forming a closed ring, or the elastic band of the two ends having the hook or the connecting device is connected to the connecting groove on the main body and the frame to connect the main body and the bottom cover together, according to The shape of the connecting battery is replaced with an elastic band of different lengths and widths, or the elastic band is made of a resilient metal spring or other elastically stretchable material.

3. The battery charger and power converter using an elastic band fixing battery according to claim 1, wherein: the inner shape of the main body and the bottom cover conform to a shape of a battery to be connected, and the electrode on the main body is based on the battery. One-to-one correspondence of the electrode positions, the edge of the main body and the bottom cover has a connecting groove connecting the elastic bands, and the elastic band connects the main body and the bottom cover through the connecting groove.

4. The battery charger and power converter for fixing a battery using an elastic band according to claim 1, wherein: said main body and said bottom cover are provided with magnets or one side is equipped with a magnet and the other side is made of a ferrous material. Made, the main body and the bottom cover are attracted to each other when the battery is not connected.

5. The battery charger and power converter using an elastic band fixing battery according to claim 1, wherein: the elastic band attached to the main body is directly sleeved on the battery case, and the main body is not required to be the bottom cover. Connected directly to the battery.

6. The battery charger and power converter for fixing a battery using an elastic band according to claim 1, wherein: for some battery bottom electrodes to be connected to the main electrode, the main body has a retractable power supply line and a bottom The cover is connected, and when the elastic band is used to combine the battery and the main body with the bottom cover, the retractable power cord connects the bottom electrode of the battery to the electrode of the main body, and the battery is removed. The power cord can be telescoped inside the main body.

7. The battery charger and power converter using an elastic band fixing battery according to claim 1, wherein: when the elastic band of the connecting body and the bottom cover is made of an elastic material having a conductive function, the elastic band can also serve as Connect the power lead between the main circuit and the battery electrode.

8. The battery charger and power converter using an elastic band-fixing battery according to claim 1, wherein: the charger for fixing the battery using the elastic band is a battery charger using an AC-DC power source, or It is a DC DC battery charger that uses an interface that can output a DC power supply such as a USB interface, or a car charger that uses a vehicle DC power supply. The rechargeable battery type that the charger can charge is a dedicated or universal rechargeable battery for various portable digital devices. , or a variety of standard models or non-standard models of rechargeable batteries, the battery type is rechargeable lithium battery, or nickel-metal hydride nickel-cadmium lead-acid rechargeable battery, charger body and bottom cover outline structure according to the battery Shape and structure are designed.

9. The battery charger and power converter using an elastic band fixed battery according to claim 1, wherein: the power converter for the main body is a boost type power converter, or a step-down power converter. , or a voltage regulator type power converter, or a power converter that can simultaneously have a step-up buck regulator function, using a primary battery, a secondary battery, an AC power source, a DC power source as a power conversion source, and a power converter The structure is designed according to the shape of the battery.