CN211046742U

CN211046742U - Power conversion device

Info

Publication number: CN211046742U
Application number: CN201922492981.7U
Authority: CN
Inventors: 金容升
Original assignee: Nantong Naiweite Power Supply Co ltd
Current assignee: Nantong Naiweite Power Supply Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-07-17
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a power conversion device, the structure of which comprises a conversion controller, a converter main body, an external connector lug, a terminal box top cover, a fixing screw, a function key and a display screen, wherein the external connector lug is embedded in the converter main body, the left end and the right end of the terminal box top cover are provided with the fixing screw, the function key is positioned on the left side of the display screen, the converter main body comprises a converter shell, an adjusting potentiometer, a locking screw, a PCB (printed circuit board), an integrated chip, an integrated circuit, an external wiring port, a wiring terminal board, a thermal protector, a diode and a current transformer, the integrated circuit is parallel to the wiring terminal board, the lower end of the converter shell is provided with the external wiring port, the thermal protector is arranged on the upper surface of the PCB, the left side of the adjusting potentiometer is provided with the current transformer, the utility model discloses a power conversion device, the converter, the short circuit of the circuit board is prevented from burning out, and the service life of the converter is prolonged.

Description

Power conversion device

Technical Field

The utility model relates to a power conversion device belongs to electric field.

Background

At present, as direct current and alternating current are applied to various instruments, in industrial fields and even household electrical appliances, power conversion devices are widely used as speed control devices for electromotive force. The most widely used voltage-type inverter converts ac power into dc power by a rectifier. However, the conventional power conversion device usually only considers feasibility and stability of the conversion process, and neglects the hidden danger that the current is too large to cause a circuit short circuit in the on-off process of the power conversion device.

The prior art discloses the application numbers as follows: 201420176360.2, a multi-stage power converter comprising a pre-conditioner circuit configured to provide a regulated output voltage, at least one DC/DC converter and a control circuit coupled to the pre-conditioner circuit and the DC/DC converter, the DC/DC converter being configured to provide the output voltage and an output current to a load, the DC/DC converter comprising an input, an output and at least one power switch, the input of the DC/DC converter being coupled to the pre-conditioner circuit, but this prior art technique is prone to short circuit or even burn out of the circuit board due to current instability during current conversion, resulting in a reduced useful life of the converter.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a power conversion device to solve prior art and make the problem that the life of converter shortens because of the electric current is unstable and burn out even the circuit board short circuit easily in current conversion.

In order to achieve the above purpose, the present invention is realized by the following technical solution: a power conversion device structurally comprises a conversion controller, a converter main body, external wiring heads, a wiring box top cover, fixing screws, function keys and a display screen, wherein the external wiring heads are embedded into the converter main body, the fixing screws are arranged at the left end and the right end of the wiring box top cover, the function keys are positioned on the left side of the display screen, the display screen is embedded on the upper surface of the conversion controller, the converter main body comprises a converter shell, an adjusting potentiometer, locking screws, a PCB (printed circuit board), an integrated chip, an integrated circuit, an external wiring port, a wiring terminal board, a thermal protector, a diode and a current transformer, the lower surface of the PCB is attached to the converter shell, the locking screws are arranged above the adjusting potentiometer, the integrated chip is welded on the upper surface of the PCB, the integrated circuit is parallel to the wiring terminal board, the lower end of the converter, the thermal protector is installed on the upper surface of the PCB, the diode is located below the current transformer, and the current transformer is arranged on the left side of the adjusting potentiometer.

Further, the conversion controller is connected with the converter main body through screws.

Further, the right surface of the conversion controller is perpendicular to the upper surface of the terminal box top cover.

Further, the junction box top cover is located above the converter main body.

Further, the external terminal is connected to the external connection port.

Further, the display screen is electrically connected with the PCB through a wire.

Further, the converter body is 20cm long, 15cm wide and 4cm high.

Advantageous effects

The utility model relates to a power conversion device has structurally set up the converter main part, and the heat protector of converter main part prevents that the circuit board short circuit from burning out at unstable or the too big automatic cutout power of electric current, has prolonged the life of converter.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural diagram of a power conversion device according to the present invention;

fig. 2 is a schematic diagram of an internal structure of a converter cylinder of the power conversion apparatus of the present invention.

In the figure: the converter comprises a conversion controller-1, a converter main body-2, an external connector-3, a junction box top cover-4, a fixing screw-5, a function key-6, a display screen-7, a converter shell-201, an adjusting potentiometer-202, a locking screw-203, a PCB board-204, an integrated chip-205, an integrated circuit-206, an external wiring port-207, a terminal board-208, a thermal protector-209, a diode-210 and a converter-211.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1 and 2, the present invention provides a power conversion apparatus, comprising: the structure of the converter comprises a conversion controller 1, a converter main body 2, an external connector lug 3, a junction box top cover 4, fixing screws 5, a function key 6 and a display screen 7, wherein the external connector lug 3 is embedded in the converter main body 2, the fixing screws 5 are arranged at the left end and the right end of the junction box top cover 4, the function key 6 is positioned at the left side of the display screen 7, the display screen 7 is embedded in the upper surface of the conversion controller 1, the converter main body 2 comprises a converter shell 201, an adjusting potentiometer 202, a locking screw 203, a PCB 204, an integrated chip 205, an integrated circuit 206, an external connection port 207, a terminal board 208, a thermal protector 209, a diode 210 and a converter 211, the lower surface of the PCB 204 is attached to the converter shell 201, the locking screw 203 is arranged above the adjusting potentiometer 202, the integrated chip 205 is welded on the upper surface of the PCB 204, the integrated circuit 206 is, the lower end of the converter shell 201 is provided with an external wiring port 207, the thermal protector 209 is installed on the upper surface of the PCB 204, the diode 210 is located below the converter 211, the converter 211 is arranged on the left side of the adjusting potentiometer 202, the conversion controller 1 is connected with the converter main body 2 through screws, the right surface of the conversion controller 1 is perpendicular to the upper surface of the junction box top cover 4, the junction box top cover 4 is located above the converter main body 2, the external wiring head 3 is connected with the external wiring port 207, the display screen 7 is electrically connected with the PCB 204 through a wire, and the converter main body 2 is 20cm long, 15cm wide and 4cm high.

The PCB 204 is the supplier of the electrical connection of the electronic components, its development has been for over 100 years, its design is mainly the territory design, the main advantage of adopting the circuit board is to greatly reduce the error of wiring and assembly, improve the automation level and production labor rate, the said integrated circuit 206 is a miniature electronic device or part, adopt certain craft, interconnect the components and wiring such as transistor, resistance, capacitance and inductance needed in a circuit together, make on a small or several small semiconductor wafer or medium substrate, then encapsulate in a tube, become the miniature structure with the required circuit function.

When the temperature is increased to an action temperature value, the thermal protector 209 is heated to generate internal stress to quickly act, the circuit is cut off and switched on, and the contacts are automatically closed to return to a normal working state when the temperature is reduced to a reset temperature, so that the thermal protection effect is achieved.

The utility model provides a prior art make the problem that the life of converter shortens because of the current is unstable easily burns out even because of the circuit board short circuit in the current conversion, the utility model discloses a combination of each other of above-mentioned part has structurally set up the converter main part, and the heat protector of converter main part prevents that the circuit board short circuit from burning out at the unstable or automatic cutout power of electric current when too big, has prolonged the life of converter, specifically as follows:

the converter main body 2 comprises a converter shell 201, an adjusting potentiometer 202, a locking screw 203, a PCB 204, an integrated chip 205, an integrated circuit 206, an external wiring port 207, a terminal board 208, a thermal protector 209, a diode 210 and a current transformer 211, wherein the lower surface of the PCB 204 is attached to the converter shell 201, the locking screw 203 is installed above the adjusting potentiometer 202, the integrated chip 205 is welded to the upper surface of the PCB 204, the integrated circuit 206 is parallel to the terminal board 208, the external wiring port 207 is arranged at the lower end of the converter shell 201, the thermal protector 209 is installed on the upper surface of the PCB 204, the diode 210 is located below the current transformer 211, and the current transformer 211 is arranged on the left side of the adjusting potentiometer 202.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A power conversion device characterized in that: the structure of the converter comprises a conversion controller (1), a converter main body (2), an external connector (3), a junction box top cover (4), fixing screws (5), function keys (6) and a display screen (7), wherein the external connector (3) is embedded into the converter main body (2), the fixing screws (5) are arranged at the left end and the right end of the junction box top cover (4), the function keys (6) are positioned at the left side of the display screen (7), the display screen (7) is embedded on the upper surface of the conversion controller (1), the converter main body (2) comprises a converter shell (201), a potentiometer (202), a locking screw (203), a PCB (204), an integrated chip (205), an integrated circuit (206), an external wiring port (207), a terminal board (208), a thermal protector (209), a diode (210) and a converter (211), the lower surface of the PCB (204) is attached to the converter shell (201), the locking screw (203) is installed above the adjusting potentiometer (202), the integrated chip (205) is welded on the upper surface of the PCB (204), the integrated circuit (206) is parallel to the terminal board (208), the lower end of the converter shell (201) is provided with an external wiring port (207), the thermal protector (209) is installed on the upper surface of the PCB (204), the diode (210) is located below the current transformer (211), and the left side of the adjusting potentiometer (202) is provided with the current transformer (211).

2. A power conversion apparatus according to claim 1, characterized in that: the conversion controller (1) is connected with the converter main body (2) through screws.

3. A power conversion apparatus according to claim 1, characterized in that: the right surface of the conversion controller (1) is vertical to the upper surface of the junction box top cover (4).

4. A power conversion apparatus according to claim 1, characterized in that: the junction box top cover (4) is positioned above the converter main body (2).

5. A power conversion apparatus according to claim 1, characterized in that: the external connector lug (3) is connected with an external connector port (207).