CN213661461U - Converter overcurrent protection device and converter - Google Patents

Abstract

The utility model discloses a frequency converter overcurrent protection device and a frequency converter, which belong to the field of frequency converters, and comprise a shell, wherein the shell is internally divided into a protection area, a frequency conversion area and a heat dissipation area, the bottom end of the shell is fixedly connected with an input end and an output end, the protection area is fixedly connected with an upper end conductor and a lower end conductor, the frequency converter overcurrent protection device and the frequency converter are provided with a conductor connecting block which can be connected with a conductor when in use, a passage is carried out through the connection of the conductor, a reset button is arranged to press a pressure spring to a certain extent, a certain passage can be conveniently carried out on a circuit, the heat dissipation area is arranged to carry out certain heat dissipation treatment on the frequency converter, thereby the frequency converter is subjected to timely heat dissipation treatment, a filter screen is arranged to effectively prevent dust and other sundries from affecting heat dissipation to a certain extent, each group of protection area and each frequency conversion, and certain maintenance work is convenient to carry out.

Description

Converter overcurrent protection device and converter

Technical Field

The utility model relates to a converter field specifically is a converter overcurrent protection device and converter.

Background

The frequency converter mainly comprises a rectifying unit, a filtering unit, an inverting unit, a braking unit, a driving unit, a detecting unit micro-processing unit and the like. The frequency converter adjusts the voltage and frequency of an output power supply by switching on and off an internal IGBT, provides the required power supply voltage according to the actual requirement of the motor, and further achieves the purposes of energy saving and speed regulation. With the continuous improvement of the industrial automation degree, the frequency converter is also widely applied.

Common converter overcurrent protection device and converter carry out certain connection for installing respectively through the circuit, can not effectually carry out certain differentiation to each different converter and protection device to inconvenient certain maintenance work that carries on, for this reason, we have proposed a converter overcurrent protection device and converter.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a converter overcurrent protection device and converter are arranged in solving the background art and propose our common converter overcurrent protection device and converter for installing respectively, carry out certain connection through the circuit, can not effectually carry out certain differentiation to each different converter and protection device to inconvenient certain maintenance work's of carrying on problem.

In order to achieve the above object, the utility model provides a following technical scheme: an overcurrent protection device of a frequency converter comprises a shell, wherein the shell is internally divided into a protection area, a frequency conversion area and a heat dissipation area, the bottom end of the shell is fixedly connected with an input end and an output end, the protection area is fixedly connected with an upper end conductor and a lower end conductor, the bottom end of the upper end conductor and the top end of the lower end conductor are fixedly connected with conductor connecting blocks, the conductor connecting blocks are connected with conductors, the side walls of the two ends of the conductors are fixedly connected with an electric push rod and a pressure spring, one end of the electric push rod, far away from the conductors, is fixedly connected with a current sensor, the current sensor is connected with a judgment module, the upper end conductor is connected with the frequency conversion area, an adapter, a rectifier, a filter and an inverter are arranged, the judging module, the adapter, the rectifier, the filter, the inverter and the protection area display panel are electrically connected with the control panel.

Preferably, be equipped with the heating panel in the heat dissipation district, heating panel one end fixedly connected with protection zone and frequency conversion district, heat dissipation district bottom fixedly connected with radiator fan, the radiator fan bottom is equipped with the filter screen, radiator fan and control panel electric connection.

Preferably, the ends of the heat dissipation plate far away from the protection zone and the frequency conversion zone are wave-shaped.

Preferably, protection zone display panel and control panel front end all are equipped with access lamp and warning light, and protection zone display panel front end is equipped with reset button, and reset button is connected with pressure spring, and the protective layer has been cup jointed to the reset button outer end, access lamp and warning light and control panel electric connection.

Preferably, an insulating plate is connected to one end of the conductor connected to the pressure spring.

Preferably, the side walls of the two ends of the heat dissipation area are provided with a plurality of groups of air inlets, and filter screens are fixedly connected in the air inlets.

A frequency converter comprises the frequency converter overcurrent protection device.

Compared with the prior art, the beneficial effects of the utility model are that: this kind of converter overcurrent protection device and converter, when using, be equipped with conductor connecting block joinable conductor, carry out the route through the connection of conductor, it can carry out certain pressing to compression spring to be equipped with reset button, can conveniently carry out certain route to the circuit, it can carry out certain heat dissipation treatment to the converter to be equipped with the radiating area, thereby carry out timely heat dissipation treatment to the converter, and be equipped with the filter screen and can effectively prevent that dust and other debris from carrying out certain influence to the heat dissipation, install every group's protecting area and frequency conversion district as an organic whole, can effectual improvement circuit's rationality, conveniently carry out certain maintenance work.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor. Wherein:

FIG. 1 is a schematic view of the entire front cross-section of the present invention;

FIG. 2 is a schematic overall front view of the present invention;

fig. 3 is a schematic side sectional view of the protection area of the present invention.

In the figure: the device comprises a shell 1, a protection area 2, a frequency conversion area 3, a heat dissipation area 4, an upper end conductor 5, a lower end conductor 6, a conductor connecting block 7, a conductor 8, an electric push rod 9, a pressure spring 10, a current sensor 11, a display panel 12, a control panel 13, a heat dissipation plate 41 and a heat dissipation fan 42.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a converter overcurrent protection device for converter overcurrent protection device and converter please refer to and draw together figure 1, and this kind of converter overcurrent protection device and converter includes: a housing 1.

Referring to fig. 1, 2 and 3, the interior of a housing 1 is divided into a protection area 2, a frequency conversion area 3 and a heat dissipation area 4, the bottom end of the housing 1 is fixedly connected with an input end and an output end, the protection area 2 is fixedly connected with an upper end conductor 5 and a lower end conductor 6, the bottom end of the upper end conductor 5 and the top end of the lower end conductor 6 are both fixedly connected with a conductor connecting block 7, the conductor connecting block 7 is connected with a conductor 8, the side walls of the two ends of the conductor 8 are fixedly connected with an electric push rod 9 and a pressure spring 10, one end of the electric push rod 9 far away from the conductor 8 is fixedly connected with a current sensor 11, the current sensor 11 is connected with a judgment module, the judgment module can compare a set current with a set current, the upper end conductor 5 is connected with the frequency conversion area 3, an adapter, a rectifier, a filter and an inverter are arranged, the electric push rod 9, the current sensor 11, the judging module, the adapter, the rectifier, the filter, the inverter and the protection area display panel 12 are electrically connected with the control panel 13.

Referring to fig. 1 and 2, a heat dissipation plate 41 is disposed in the heat dissipation area 4, one end of the heat dissipation plate 41 is fixedly connected to the protection area 2 and the frequency conversion area 3, a heat dissipation fan 42 is fixedly connected to the bottom end of the heat dissipation area 4, the heat dissipation fan 42 can accelerate heat dissipation, a filter screen is disposed at the bottom end of the heat dissipation fan 42, and the heat dissipation fan 42 is electrically connected to the control board 13.

Referring to fig. 1, two ends of the heat dissipation plate 41 away from the protection region 2 and the frequency conversion region 3 are corrugated, so as to increase the heat dissipation area and speed up the heat dissipation.

Referring to fig. 1, 2 and 3, the front ends of the protection area display panel 12 and the control panel 13 are respectively provided with a pass-through lamp and an alarm lamp, the pass-through lamp and the alarm lamp warn the operator to some extent, the front end of the protection area display panel 12 is provided with a reset button 14, the reset button 14 is connected with a pressure spring 10, the reset button 14 can perform a certain reset treatment on the conductor 8, the outer end of the reset button 14 is sleeved with a protection layer, the protection layer can protect the operator to some extent, and the pass-through lamp and the alarm lamp are electrically connected with the control panel 13.

Referring to fig. 2 and 3, an insulating plate is connected to one end of the conductor 8 connected to the compression spring 10 to prevent electrical conduction, thereby protecting workers to a certain extent.

Referring to fig. 1 and 2, the side walls of the two ends of the heat dissipation area 4 are provided with a plurality of sets of air inlets, and the filter screen is fixedly connected in the air inlets, so that the heat dissipation can be performed in time.

The utility model also provides a converter, including above-mentioned converter overcurrent protection device.

When the device is used specifically, firstly, the upper end conductor 5 is connected with the frequency conversion area 3 to a certain extent, the on-off of the current can be detected to a certain extent through the current sensor 11, the current is judged to a certain extent by the judgment module, when the current exceeds the limit current, the electric push rod 9 pushes the conductor 8 to a certain extent, so that the circuit is protected to a certain extent, meanwhile, the alarm lamps at the front ends of the protection area display panel 12 and the control panel 13 are turned on, so that a worker is reminded to carry out certain maintenance work in time, after the maintenance is finished, the pressure spring 10 is pressed through the reset button 14 so as to reset the conductor 8 to a certain extent, the circuit carries out a certain passage, meanwhile, the passage lamps at the front ends of the protection area display panel 12 and the control panel 13 are turned on, the worker is reminded that the circuit is running, the heat dissipation plate 41 is arranged, so, the heat dissipation treatment of the interior can be accelerated, so that the frequency converter is protected to a certain extent.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the non-exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims (7)

1. The utility model provides a converter overcurrent protection device, includes casing (1), its characterized in that: divide into protected area (2), frequency conversion district (3) and radiating area (4) in casing (1), casing (1) bottom fixedly connected with input and output, protected area (2) fixedly connected with upper end conductor (5) and lower extreme conductor (6), the equal fixedly connected with conductor connecting block (7) in upper end conductor (5) bottom and lower extreme conductor (6) top, conductor connecting block (7) are connected with conductor (8), conductor (8) both ends lateral wall fixedly connected with electric putter (9) and compression spring (10), the one end fixedly connected with current sensor (11) of conductor (8) are kept away from in electric putter (9), current sensor (11) are connected with the judging module, upper end conductor (5) are connected with frequency conversion district (3), be equipped with adapter, rectifier, in the frequency conversion district (3), The frequency conversion device comprises a filter and an inverter, wherein the two ends of the frequency conversion area (3) are fixedly connected with heat dissipation areas (4), a protection area display board (12) and a control board (13) are installed at the front end of the shell (1), and the electric push rod (9), the current sensor (11), the judgment module, the adapter, the rectifier, the filter, the inverter, the protection area display board (12) and the control board (13) are electrically connected.

2. The frequency converter overcurrent protection device according to claim 1, characterized in that: be equipped with heating panel (41) in radiating area (4), heating panel (41) one end fixedly connected with protection zone (2) and frequency conversion district (3), radiating area (4) bottom fixedly connected with radiator fan (42), radiator fan (42) bottom is equipped with the filter screen, radiator fan (42) and control panel (13) electric connection.

3. The frequency converter overcurrent protection device according to claim 2, characterized in that: and one ends of the two ends of the heat dissipation plate (41) far away from the protection area (2) and the frequency conversion area (3) are in a wave shape.

4. The frequency converter overcurrent protection device according to claim 1, characterized in that: protection zone display panel (12) and control panel (13) front end all are equipped with access lamp and warning light, protection zone display panel (12) front end is equipped with reset button (14), reset button (14) are connected with pressure spring (10), and reset button (14) outer end has cup jointed the protective layer, access lamp and warning light and control panel (13) electric connection.

5. The frequency converter overcurrent protection device according to claim 1, characterized in that: and an insulating plate is connected to one end of the conductor (8) connected with the pressure spring (10).

6. The frequency converter overcurrent protection device according to claim 1, characterized in that: the side walls of the two ends of the heat dissipation area (4) are provided with a plurality of groups of air inlets, and filter screens are fixedly connected in the air inlets.

7. A frequency converter, characterized by: comprising the frequency converter overcurrent protection arrangement of any one of claims 1 to 6.

Images