CN201091045Y - Power supply conversion device - Google Patents

Abstract

The utility model discloses a power supply conversion device, which comprises a shell, a power line and a connecting line, wherein a winding device is arranged in the shell, one side of the shell is provided with a wire outlet and more than one output part, one end of the power line is provided with a joint, the other end of the power line is electrically connected with one side of the shell, one end of the connecting line penetrates into the shell through the wire outlet and is connected with the winding device, so that the connecting line can be wound in the winding device, the other end of the connecting line is connected with an electric connector, and the electric connector is exposed out of the wire outlet; therefore, the connecting wire can be pulled out of the power supply conversion device for use through the winding device or wound in the power supply conversion device for storage.

Description

power conversion device

technical field

The utility model relates to a power conversion device, in particular to a device that can be connected with a vehicle or indoor power supply to output DC power to an electronic device, and has a device that can be stretched outside the power conversion device and folded inside the power conversion device. The power conversion device of the connecting line.

Background technique

As shown in FIG. 1 , a conventional power conversion device includes a casing 10a and a power cord 20a. A cigarette lighter socket 11a and a USB slot 12a are provided on one side of the casing 10a for connecting with electronic devices. One end of the power cord 20a is provided with a cigarette lighter plug 21a, and the other end is electrically connected to one side of the casing 10a.

The power conversion device plugs the cigarette lighter plug 21a into the preset cigarette lighter socket on the car to obtain the power on the car, and then transmits the power to the connected electronic device through the USB slot 12a of the casing 10a .

However, the known power conversion device still has the following disadvantages in use:

1. The power conversion device must be equipped with a transmission line with a USB plug attached to the electronic device to be connected to the USB slot 12a for power transmission. When the user forgets to carry the transmission line, the power conversion device cannot function.

2. In addition to carrying the power conversion device, the user still needs to carry a transmission line, which increases the user's burden virtually, and the transmission line is not easy to store and is inconvenient to carry.

Contents of the invention

The purpose of this utility model is to provide a power conversion device, which can be connected with the vehicle or indoor power supply, and supply power to the electronic device. The retracting device inside the power conversion device can be pulled out of the power conversion device for use, or rolled up and stored inside the power conversion device.

In order to achieve the above object, the present invention provides a power conversion device, which includes: a housing with a retracting device inside, a wire outlet hole and more than one output part on one side of the housing; a power cord with One end is provided with a connector, and the other end is electrically connected to one side of the housing; and a connecting wire, one end of which is inserted into the housing through the outlet hole, and is connected with the retracting device, so that the connecting wire can be retracted In the retracting device, the other end of the connecting wire is connected to an electrical connector, and the electrical connector is exposed outside the wire outlet hole.

The utility model has the following beneficial effects: when the power conversion device of the utility model is connected with an electronic device that needs to be charged, as long as the connecting wire is directly pulled out to connect with the electronic device, the power supply can be transmitted; the power conversion device is not in use When using the power conversion device, the connecting wire can also be rolled up inside the power conversion device. Therefore, the user does not need to carry the transmission wire equipped with the electronic device, which makes the operation of the power conversion device more convenient, and the utility model can not only be connected to the car The power supply can also be connected to the indoor power supply and output power, which has better applicability.

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the utility model.

Description of drawings

FIG. 1 is a perspective view of a known power conversion device;

Fig. 2 is the perspective view of the first embodiment of the utility model;

Fig. 3 is a three-dimensional schematic diagram when the connecting wire of the first embodiment of the present invention is pulled out;

Fig. 4 is a perspective view of another angle of the first embodiment of the present utility model;

Fig. 5 is a perspective view of the second embodiment of the present invention.

Among them, reference signs:

10a Housing

11a Cigarette lighter socket

12a USB slot

20a power cord

21a Cigarette lighter plug

10 shell

11 The first outlet hole

12 Second outlet hole

13 The first output unit

14 Second output part

15 The third output part

16 The first retracting device

17 Second retracting device

18 First power connector

20 power cord

21 Connectors

22 Second power connector

20' power cord

21' connector

22' second power connector

23' Transformer

30 first connecting line

40 Second connecting wire

50 first electrical connector

60 Second electrical connector

Detailed ways

Please refer to FIG. 2 and FIG. 3 , the power conversion device of the present invention includes: a housing 10, a power cord 20, a first connecting wire 30, a second connecting wire 40, a first electrical connector 50 and a first Two electrical connectors 60 .

One side of the casing 10 is provided with a first outlet hole 11, a second outlet hole 12 (as shown in FIG. 3 ), a first output portion 13, a second output portion 14 and two third output portions 15. The first wire outlet hole 11 and the second wire outlet hole 12 are arranged side by side up and down. In this embodiment, the first output part 13 is a cigarette lighter socket, the second output part 14 is an AC output socket, and the third output part 15 is a USB slot. These output parts 13, 14, 15 can be respectively Connect with appropriate electronics to provide the required power.

A first retracting device 16 and a second retracting device 17 are provided at appropriate positions inside the casing 10 , and the two retracting devices 16 , 17 have the function of automatically retracting the two connecting wires 30 , 40 . In this embodiment, the two retracting devices 16, 17 are both cord reels, and when the user does not need to use the two connecting lines 30, 40, the two connecting lines 30, 40 can be passed through the two The retracting devices 16, 17 are automatically retracted in the housing 10. The above-mentioned two retracting devices 16, 17 belong to the known technology, and the utility model does not limit the structure of the two retracting devices 16, 17, so No further details are given here.

One end of the power cord 20 is provided with a joint 21, and in this embodiment, the joint 21 is a cigarette lighter plug. The other end of the power cord 20 can be fixed on one side of the housing 10 to achieve electrical connection, or as shown in FIG. A second power connector 22 that can be plugged into the first power connector 18 is provided, so that the case 10 and the power cord 20 can be separated and assembled, so that the power cord 20 can be placed separately from the case 10 .

The two connecting wires 30 and 40 are constructed with a conductor inside (not shown) and an insulating layer (not shown) on the outside of the conductor. The structure and type are not limited, and they can be cables, flat cables, etc. . In this embodiment, the two connecting wires 30 and 40 are flat cables.

One end of the two connecting wires 30, 40 penetrates into the housing 10 through the two outlet holes 11, 12 respectively, and is connected to the two retracting devices 16, 17. The two connecting wires 30, 40 can be rolled Received in the two retracting devices 16, 17, the two retracting devices 16, 17 are also electrically connected with components such as the circuit board (not shown) inside the housing 10, so that the two connecting wires 30, 40 It can be electrically connected to the housing 10, and the two connecting wires 30, 40 are movably passed through the two outlet holes 11, 12, so that the two connecting wires 30, 40 can be pulled out of the housing 10 or housed in the housing 10.

The first electrical connector 50 is connected to the other end of the first connecting wire 30. In this embodiment, the first electrical connector 50 is a FireWire connector, which can be plugged into an electronic device such as an iPod. power transmission.

The second electrical connector 60 is connected to the other end of the second connection line 40, the second electrical connector 60 is a Mini-USB connector in this embodiment, and the two electrical connectors 50, 60 can be connected by USB. Connectors or other various connectors, and do not limit the type of female or male.

The two electrical connectors 50, 60 are exposed outside the two outlet holes 11, 12, and the two electrical connectors 50, 60 are internally provided with several terminals (not shown), these terminals are made of conductive materials, and These terminals are respectively electrically connected to conductors inside the two connecting wires 30 , 40 (not shown), so that the two electrical connectors 50 , 60 can be electrically connected to the two connecting wires 30 , 40 .

Please refer to Figure 5, which discloses another power cord 20', the connector 21' at one end of the power cord 20' is a power plug for plugging into a commercial power outlet, and the other end is provided with a Connectors 18 are plugged into the second power connector 22', and a transformer 23' is provided at the middle section of the power cord 20' to convert the commercial AC power to DC power; thereby, the housing 10 It can cooperate with the power cord 20' to form a power conversion device that can be used indoors.

The utility model power conversion device has the following characteristics and functions:

1. The power conversion device of the present utility model is equipped with retracting devices 16 and 17 inside the casing 10, so that the connecting wires 30 and 40 can be retracted through the retracting devices 16 and 17. When connecting with an electronic device, only Directly pull the connecting wires 30, 40 out of the power conversion device to connect with the electronic device, then the power supply can be supplemented or directly supplied to the electronic device. Transmission: when the power conversion device is not in use, the connecting wires 30 and 40 can also be conveniently automatically rolled up inside the power conversion device for storage, which is more convenient and practical in operation.

2. Since there is no need to carry the transmission line configured by the electronic device, the burden on the user can be reduced, and of course there is no need to worry about carrying and storing the transmission line.

3. The power conversion device can be connected to the vehicle or indoor power supply by replacing the power cord to supply power to the electronic device, which has better applicability.

Certainly, the utility model also can have other various embodiments, under the situation of not departing from the spirit and essence of the utility model, those skilled in the art can make various corresponding changes and distortions according to the utility model, but these Corresponding changes and deformations should all belong to the scope of protection of the appended claims of the utility model.

Claims (10)

1. A power conversion device, characterized in that it comprises: a housing with a retracting device inside, one side of the housing is provided with an outlet hole and more than one output part; a power cord, one end is provided with a A connector, the other end of which is electrically connected to one side of the casing; and a connecting wire, one end of which is inserted into the casing through the outlet hole and connected to the retracting device, and the connecting wire is retracted in the retracting device , the other end of the connecting wire is connected to an electrical connector, and the electrical connector is exposed outside the outlet hole. 2. The power conversion device according to claim 1, wherein the retracting device is a cord reel. 3. The power conversion device according to claim 1, wherein the output part is a cigarette lighter socket. 4. The power conversion device according to claim 1, wherein the output part is an AC output socket. 5. The power conversion device according to claim 1, wherein the output part is a USB slot. 6. The power conversion device according to claim 1, wherein the connector is a cigarette lighter plug. 7 . The power conversion device according to claim 1 , wherein the connector is a power plug, and a transformer is provided at a middle section of the power line. 8 . 8. The power conversion device according to claim 1, wherein a first power connector is provided on one side of the casing, a second power connector is provided on the other end of the power cord, and the second power connector is plugged into Connect to the first power connector. 9. The power conversion device according to claim 1, wherein the connecting wire is a flat cable. 10. The power conversion device according to claim 1, wherein the electrical connector is a FireWire connector, a Mini-USB connector or a USB connector.

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