Power conversion device

Abstract

The utility model belongs to the technical field of power conversion, and particularly relates to a power conversion device which comprises a conversion device body, the conversion device body comprises a power converter, an input plug and an output connector, and the power converter is connected with the input plug through a first connecting wire and connected with the output connector through a second connecting wire. Mounting plates are vertically and symmetrically arranged on a shell of the input plug, and through pipes are arranged on the side walls of the mounting plates in a penetrating mode. According to the utility model, the pull plate is firstly pressed to push the spring and the rubber block, the spring is compressed, gas in the through pipe is exhausted, then the input plug is inserted into the jack on the socket, the sucker is adsorbed on the surface of the socket, and after the pull plate is loosened, the spring reversely pushes the pull plate to drive the rubber block to move, and the sucker is adsorbed on the surface of the socket through pressure. The insertion stability of the input plug is improved; when the output hole does not need to be used, the baffle can be rotated, the son buckle is inserted into the mother buckle, the output hole is covered and sealed, and dust and sundries are prevented from entering.

Description

Technical Field

[0001] The utility model relates to the technical field of power conversion, in particular to a power conversion device. Background Art

[0002] Due to the different power environments in different countries and regions around the world, there are also differences in civil voltages. The voltage application ranges of electrical appliances in different countries are also different. As a result, when we carry electronic devices across borders, they often cannot be used normally due to voltage mismatch. In order to solve this problem, power converters came into being. They use transformer technology to convert input voltage into the output voltage required by electronic devices. Through power converters, electronic devices can be connected to the local power system for normal charging and use.

[0003] Ordinary power conversion devices usually insert the input plug into the jack on the socket, and then connect the electronic device to the output hole through wiring. The input plug of the transmission is directly inserted into the jack, and there is no external stabilizing device to stabilize it on the socket, which causes the wiring to be pulled by external force and the plug is easily loosened from the jack. Secondly, the output hole is usually directly exposed to the outside world, and the power conversion device is usually carried out for use. When placed in the user's luggage bag, once there are smaller sundries, temporary debris, etc. in the luggage bag, it is easy to enter the output hole and affect its use. Therefore, it is necessary to develop a power conversion device. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0006] A power conversion device, comprising a conversion device body, the conversion device body comprising a power converter, an input plug and an output connector, the power converter is connected to the input plug via a first connection, and is connected to the output connector via a second connection;

[0007] The housing of the input plug is symmetrically provided with a mounting plate, a through pipe is penetrated through the side wall of the mounting plate, one end of the through pipe is connected with a suction cup, the other end of the through pipe is slidably penetrated with a pull rod, one end of the pull rod located in the inner cavity of the through pipe is provided with a rubber block, the rubber block is interference fit with the through pipe, and the other end of the pull rod is provided with a pull plate;

[0008] The output connector end is provided with an output hole for connecting wiring, and a baffle is provided on the shell side wall of the output connector through rotation of a rotating shaft. The baffle is located on the same side of the output hole and is used to cover the closed baffle.

[0009] As a preferred solution of a power conversion device described in the utility model, wherein: the diameter of the pull plate is larger than the diameter of the pull rod, a spring parallel to the pull rod is provided between the pull plate and the housing of the input plug, and the shaft gap of the pull rod passes through the inner side of the spring.

[0010] As a preferred solution of the power conversion device described in the utility model, there are at least three output holes, and the voltage of each output hole is different, and the side wall of the shell of the input plug is provided with a marking of the corresponding voltage.

[0011] As a preferred solution of a power conversion device described in the utility model, a shift plate is provided on the side of the baffle away from its rotating shaft, a sub-buckle is provided on the side wall of the shift plate, and a female buckle adapted to be inserted into the sub-buckle is provided on the shell side wall of the output connector.

[0012] As a preferred solution of the power conversion device described in the utility model, when the baffle covers and closes the output hole, the lower edge of the shift plate protrudes from the lower edge of the shell of the output connector.

[0013] As a preferred solution of a power conversion device described in the utility model, wherein: a power supply terminal, an anti-reverse connection protection circuit, a π-type filter circuit, a DCDC power conversion module, an RC filter circuit and an LDO circuit unit are arranged inside the shell of the power converter, the input plug is electrically connected to the power supply terminal through a wiring 1, the power supply terminal is electrically connected to the anti-reverse connection protection circuit, the π-type filter circuit, the DCDC power conversion module, the RC filter circuit and the LDO circuit unit, and the LDO circuit unit is electrically connected to all the output holes through a wiring 2.

[0014] The beneficial effects of the utility model are:

[0015] Before inserting the input plug into the socket on the socket, first press the pull plate to push the spring and the rubber block, compress the spring, and discharge the gas inside the through tube, then insert the input plug into the socket on the socket, and adsorb the suction cup on the surface of the socket. After releasing the pull plate, the spring pushes the pull plate back, driving the rubber block to move, and adsorbing the suction cup on the surface of the socket through pressure, thereby improving the stability of the input plug insertion;

[0016] When the output hole is not in use, the baffle can be rotated, and the sub-buckle is inserted into the mother buckle to cover and seal the output hole to reduce the entry of dust and debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 For this utility model Figure 1 A schematic diagram of the structure in a side view direction;

[0020] Figure 3 It is a schematic diagram of the cross-section internal structure of the mounting plate and the through pipe of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the internal components of the housing of the power converter of the utility model;

[0022] Figure 5 For this utility model Figure 1 Schematic diagram of the structure after the middle baffle is closed;

[0023] Figure 6 This is a system block diagram of the utility model.

[0024] In the figure: power converter 100, connection 1 110, connection 2 120, power supply terminal 130, anti-reverse protection circuit 140, π-type filter circuit 150, DCDC power conversion module 160, RC filter circuit 170, LDO circuit unit 180, input plug 200, mounting plate 210, through pipe 220, suction cup 230, pull rod 240, rubber block 250, pull plate 260, spring 270, output connector 300, output hole 310, baffle 320, dial plate 330, sub buckle 340, female buckle 350, mark 360 DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0027] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0028] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] See also Figure 1-Figure 6 , which shows a schematic diagram of the structure of a power conversion device of the utility model, please refer to Figure 1-Figure 6 , a power conversion device is introduced in detail.

[0030] A power conversion device includes a conversion device body, wherein the conversion device body includes a power converter 100, an input plug 200 and an output connector 300, wherein the power converter 100 is connected to the input plug 200 via a first connection 110, and is connected to the output connector 300 via a second connection 120;

[0031] The housing of the input plug 200 is symmetrically provided with a mounting plate 210, a through pipe 220 is penetrated through the side wall of the mounting plate 210, one end of the through pipe 220 is connected with a suction cup 230, and the other end of the through pipe 220 is slidably penetrated with a pull rod 240, one end of the pull rod 240 located in the inner cavity of the through pipe 220 is provided with a rubber block 250, the rubber block 250 and the through pipe 220 are interference fit, and the other end of the pull rod 240 is provided with a pull plate 260;

[0032] The output connector 300 has an output hole 310 for connecting wiring at its end. A baffle 320 is provided on the shell side wall of the output connector 300 through a rotating shaft. The baffle 320 is located on the same side of the output hole 310 and is used to cover and close the baffle 320 .

[0033] Furthermore, the diameter of the pull plate 260 is larger than the diameter of the pull rod 240, and a spring 270 parallel to the pull rod 240 is provided between the pull plate 260 and the shell of the input plug 200, and the shaft gap of the pull rod 240 passes through the inner side of the spring 270, and the pull plate 260 is pressed to push the spring 270 and the rubber block 250, and the spring 270 is compressed to discharge the gas inside the through tube 220, and then the input plug 200 is inserted into the jack on the socket, and then the suction cup 230 is adsorbed on the surface of the socket, and after the pull plate 260 is released, the spring 270 pushes the pull plate 260 back, driving the rubber block 250 to move, and the suction cup 230 is adsorbed on the surface of the socket by pressure, thereby improving the stability of the input plug 200 insertion.

[0034] Furthermore, at least three output holes 310 are provided, and each output hole 310 has a different voltage, which can support the use of various types of equipment. The shell side wall of the input plug 200 is provided with a label 360 corresponding to the voltage.

[0035] Furthermore, a shift plate 330 is provided on one side of the baffle 320 away from the rotating shaft thereof, a sub-button 340 is provided on the side wall of the shift plate 330 , and a female buckle 350 adapted to be inserted into the sub-button 340 is provided on the shell side wall of the output connector 300 .

[0036] Furthermore, when the baffle 320 covers and closes the output hole 310 , the lower edge of the dial plate 330 protrudes from the lower edge of the housing of the output connector 300 , so that the user can easily swing the protruding dial plate 330 to open the baffle 320 .

[0037] Furthermore, a power supply terminal 130, an anti-reverse connection protection circuit 140, a π-type filter circuit 150, a DCDC power conversion module 160, an RC filter circuit 170 and an LDO circuit unit 180 are provided inside the shell of the power converter 100. The input plug 200 is electrically connected to the power supply terminal 130 through the wiring 110. The power supply terminal 130 is electrically connected to the anti-reverse connection protection circuit 140, the π-type filter circuit 150, the DCDC power conversion module 160, the RC filter circuit 170 and the LDO circuit unit 180. The LDO circuit unit 180 is electrically connected to all the output holes 310 through the wiring 2 120. After the input plug 200 is inserted into the jack on the socket, the external power is input, passes through the anti-reverse connection protection circuit, then passes through the π-type filter circuit, then passes through the DCDC power conversion module, and then passes through the RC filter circuit and the LDO circuit unit, and three power supply voltages are output from the LDO circuit unit respectively for use by the user equipment. The reverse connection protection circuit uses MOS tubes. Since the internal resistance of the power MOS tube is very small, compared with the use of diodes for power reverse connection protection, its advantage is that the voltage drop is small and can be ignored. The overvoltage protection circuit is designed by connecting a bidirectional TVS in parallel at the power input end to effectively absorb the surge voltage and current at the moment of power-on. The overcurrent protection circuit is designed by connecting a fuse in series at the power input end. When the circuit is overcurrent, it can open the circuit in time to effectively protect other components of the circuit from damage.

[0038] In specific use, before the input plug 200 is inserted into the socket on the socket, the pull plate 260 is pressed to push the spring 270 and the rubber block 250, and the spring 270 is compressed to discharge the gas inside the through tube 220, and then the input plug 200 is inserted into the socket on the socket, and the suction cup 230 is adsorbed on the surface of the socket. After releasing the pull plate 260, the spring 270 pushes the pull plate 260 in reverse, driving the rubber block 250 to move, and the suction cup 230 is adsorbed on the surface of the socket by pressure, thereby improving the insertion stability of the input plug 200, and then the device interface that needs to be powered is connected to one end of the USB cable, and the other end of the USB cable is inserted into the required output hole 310 to complete the connection; when the output hole 310 is not needed, the baffle 320 can also be rotated, and the sub-button 340 is inserted into the female button 350 to cover and seal the output hole 310 to reduce the entry of dust and debris.

[0039] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A power conversion device, characterized in that: The conversion device comprises a conversion device body, the conversion device body comprising a power converter (100), an input plug (200) and an output connector (300), the power converter (100) being connected to the input plug (200) via a first connection (110) and being connected to the output connector (300) via a second connection (120); The shell of the input plug (200) is symmetrically provided with a mounting plate (210) in the upper and lower parts, a through pipe (220) is penetrated through the side wall of the mounting plate (210), one end of the through pipe (220) is connected with a suction cup (230), the other end of the through pipe (220) is slidably penetrated with a pull rod (240), one end of the pull rod (240) located in the inner cavity of the through pipe (220) is provided with a rubber block (250), the rubber block (250) is interference fit with the through pipe (220), and the other end of the pull rod (240) is provided with a pull plate (260); An output hole (310) for connecting a wire is provided at the end of the output connector (300), and a baffle (320) is provided on the shell side wall of the output connector (300) through rotation of a rotating shaft, wherein the baffle (320) is located on the same side of the output hole (310) and is used to cover and close the baffle (320).

2. A power conversion device according to claim 1, characterized in that: The diameter of the pull plate (260) is greater than the diameter of the pull rod (240), and a spring (270) parallel to the pull rod (240) is provided between the pull plate (260) and the housing of the input plug (200), and the shaft gap of the pull rod (240) passes through the inner side of the spring (270).

3. A power conversion device according to claim 2, characterized in that: At least three output holes (310) are provided, and the voltage of each output hole (310) is different. The shell side wall of the input plug (200) is provided with a mark (360) corresponding to the voltage.

4. A power conversion device according to claim 1, characterized in that: A shift plate (330) is arranged on one side of the baffle (320) away from the rotating shaft thereof, a sub-button (340) is arranged on the side wall of the shift plate (330), and a female buckle (350) adapted to be inserted into the sub-button (340) is arranged on the shell side wall of the output connector (300).

5. A power conversion device according to claim 4, characterized in that: When the baffle (320) covers and closes the output hole (310), the lower edge of the shift plate (330) protrudes from the lower edge of the housing of the output connector (300).

6. A power conversion device according to claim 3, characterized in that: A power supply terminal (130), an anti-reverse connection protection circuit (140), a π-type filter circuit (150), a DCDC power conversion module (160), an RC filter circuit (170) and an LDO circuit unit (180) are arranged inside the housing of the power converter (100); the input plug (200) is electrically connected to the power supply terminal (130) via a first connection (110); the power supply terminal (130) is electrically connected to the anti-reverse connection protection circuit (140), the π-type filter circuit (150), the DCDC power conversion module (160), the RC filter circuit (170) and the LDO circuit unit (180); and the LDO circuit unit (180) is electrically connected to all output holes (310) via a second connection (120).

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