CN214495459U - Integrated trolley line ice melting device - Google Patents
Integrated trolley line ice melting device Download PDFInfo
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- CN214495459U CN214495459U CN202022995203.2U CN202022995203U CN214495459U CN 214495459 U CN214495459 U CN 214495459U CN 202022995203 U CN202022995203 U CN 202022995203U CN 214495459 U CN214495459 U CN 214495459U
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- ice melting
- insulated gate
- gate bipolar
- bipolar transistor
- line
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Abstract
An integrated trolley line ice melting device comprises a trolley line and an ice melting device which is connected with a trolley line power supply circuit and heats the trolley line; the ice melting device comprises an ice melting controller which is connected with the head end of the sliding contact line and provides heating alternating current, and a sliding contact line short-circuit switch which is connected with the tail end of the sliding contact line, wherein the on and off of the sliding contact line short-circuit switch are consistent with the working condition of the ice melting controller; the utility model discloses compact structure, the low noise effectively fills jack-up trade 380V low pressure circuit ice-melt technique blank, effectively solves the wiping line problem of freezing winter, avoids the difficult problem of unable normal use of hoisting equipment under low temperature environment.
Description
Technical Field
The utility model relates to a supporting electrical control equipment of hoist especially relates to a wiping line ice-melt device that integrates.
Background
The trolley line is an important component of the power supply side of the crane, and the trolley line is often frozen due to the fact that the temperature of the crane in some application environments is lower than 0 ℃, so that normal use of hoisting equipment is affected. Although the AC and DC deicing technology is well applied to the field of high-voltage power transmission, the technology cannot be applied to the field of cranes with the characteristic of low voltage due to higher cost.
Although the sliding contact line ice melting device based on the step-down transformer technology can effectively solve the problem, the step-down transformer serving as a core element has the defect of large size due to low working frequency (50Hz), and is easy to cause users to have problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, an integrated trolley line ice melting device is provided.
The purpose of the utility model is realized with the following mode:
an integrated trolley line ice melting device comprises a trolley line and an ice melting device which is connected with a trolley line power supply circuit and heats the trolley line; the ice melting device comprises an ice melting controller which is connected with the head end of the sliding contact line and provides heating alternating current, and a sliding contact line short-circuit switch which is connected with the tail end of the sliding contact line, wherein the on and off of the sliding contact line short-circuit switch are consistent with the working condition of the ice melting controller; the ice melting controller comprises a transformer, a primary coil arranged on the primary side of the transformer and 4 secondary coils arranged on the secondary side of the transformer, wherein an input power supply is connected with a three-phase full-wave rectification current circuit, three-phase alternating current is converted into 6-pulse direct current and then filtered and stored with energy through an intermediate direct current link, the output end of the intermediate direct current link is connected with the input end of a single-phase high-frequency inverter, the output end of the single-phase high-frequency inverter is connected to the primary coil, the 4 secondary coils are respectively connected with the input ends of 4 full-wave rectification circuits, and after the high-frequency alternating current after voltage reduction is converted into direct current, 4 low-voltage direct currents are output after post-stage LC filtering.
And the input end of the ice melting controller is connected with a power supply circuit through an ice melting controller power switch.
And the sliding contact line short-circuit switch is electrically interlocked with a power switch of the ice melting controller.
And a power supply switch is arranged on a power supply line of the sliding contact line, and the power supply switch is electrically interlocked with a power switch of the ice melting controller.
The ice melting controller is provided with a single path of 380Vac/3Ph/50Hz input voltage and four paths of output voltage which is as low as 12Vac/1 Ph/20-50 kHz.
The transformer is a high-frequency step-down transformer.
The intermediate direct current link comprises a first capacitor, a second capacitor, a first resistor and a second resistor, wherein the first capacitor and the second capacitor are connected in series, and the first resistor and the second resistor are respectively connected with the first capacitor and the second capacitor in parallel.
The single-phase high-frequency inverter comprises 4 insulated gate bipolar transistors which are respectively a first insulated gate bipolar transistor, a second insulated gate bipolar transistor, a third insulated gate bipolar transistor and a fourth insulated gate bipolar transistor, wherein one end of the first insulated gate bipolar transistor is connected with one end of the second insulated gate bipolar transistor in series, one end of the third insulated gate bipolar transistor is connected with one end of the fourth insulated gate bipolar transistor in series, the other end of the first insulated gate bipolar transistor is connected with the other end of the third insulated gate bipolar transistor, and the other end of the second insulated gate bipolar transistor is connected with the other end of the fourth insulated gate bipolar transistor.
The ice melting controller, the sliding contact line short-circuit switch and the ice melting controller power switch are arranged in the cabinet body.
Compared with the prior art, the utility model discloses compact structure, the low noise effectively fills jack-up trade 380V low pressure circuit ice-melt technique blank, effectively solves the wiping line problem of freezing winter, avoids the difficult problem of unable normal use of hoisting equipment under low temperature environment.
Drawings
Fig. 1 is the utility model discloses a wiping line ice-melt device that integrates connects the schematic diagram.
Fig. 2 is a schematic diagram of the ice melting controller of the present invention.
Where 1 is a trolley line.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same technical meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, and it should be further understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of the stated features, steps, operations, devices, components, and/or combinations thereof.
In the present invention, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only relational terms determined for convenience of describing structural relationships of the respective parts or elements of the present invention, and are not intended to refer to any part or element of the present invention, and are not to be construed as limiting the present invention.
In the present invention, terms such as "fixedly connected", "connected", and the like are to be understood in a broad sense, and may be fixedly connected, or may be integrally connected or detachably connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be determined according to specific situations by persons skilled in the relevant scientific or technical field, and are not to be construed as limiting the present invention.
An integrated trolley line ice melting device comprises a trolley line and an ice melting device which is connected with a trolley line power supply circuit and heats the trolley line; the ice melting device comprises an ice melting controller U1 which is connected with the head end of the sliding contact line and provides heating alternating current, and a sliding contact line short-circuit switch K3 which is connected with the tail end of the sliding contact line, wherein the on-off state of the sliding contact line short-circuit switch is consistent with the working state of the ice melting controller.
The input end of the ice melting controller U1 is connected with a power supply circuit through an ice melting controller power switch K2.
The trolley line short-circuit switch K3 is electrically interlocked with the ice-melting controller power switch K2.
And a power supply switch K1 is arranged on a power supply circuit of the sliding contact line, and the power supply switch K1 is electrically interlocked with a power switch K2 of the ice melting controller.
The ice melting controller U1 has a single path of 380Vac/3Ph/50Hz input voltage and four paths of output voltage which is as low as 12Vac/1 Ph/20-50 kHz.
The ice melting controller comprises a transformer T1, a primary side coil arranged on the primary side of a transformer T1 and 4 secondary side coils arranged on the secondary side of a transformer T1, an input power supply is connected with a three-phase full-wave rectification current circuit, three-phase alternating current is converted into 6-pulse direct current and then filtered and stored with energy through an intermediate direct current link, the output end of the intermediate direct current link is connected with the input end of a single-phase high-frequency inverter, the output end of the single-phase high-frequency inverter is connected to the primary side coil, the 4 secondary side coils are respectively connected with the input ends of 4 full-wave rectification circuits, the high-frequency alternating current after voltage reduction is converted into direct current, and then 4 low-voltage direct current is output after post LC filtering.
The transformer T1 is a high-frequency step-down transformer.
The intermediate direct current link comprises a first capacitor C1, a second capacitor C2, a first resistor R1 and a second resistor R2, wherein the first capacitor C1 and the second capacitor C2 are connected in series, and the first resistor R1 and the second resistor R2 are connected with the first capacitor C1 and the second capacitor C2 in parallel.
The single-phase high-frequency inverter comprises 4 insulated gate bipolar transistors which are respectively a first insulated gate bipolar transistor V1, a second insulated gate bipolar transistor V2, a third insulated gate bipolar transistor V3 and a fourth insulated gate bipolar transistor V4, wherein one end of the first insulated gate bipolar transistor V1 is connected with one end of the second insulated gate bipolar transistor V2 in series, one end of the third insulated gate bipolar transistor V3 is connected with one end of the fourth insulated gate bipolar transistor V4 in series, the other end of the first insulated gate bipolar transistor V1 is connected with the other end of the third insulated gate bipolar transistor V3, and the other end of the second insulated gate bipolar transistor V2 is connected with the other end of the fourth insulated gate bipolar transistor V4.
The ice melting controller U1, the trolley line short circuit switch K3 and the ice melting controller power switch K2 are arranged in the cabinet body.
The utility model discloses a schematic diagram of wiping line ice-melt device is shown in fig. 1, and ice-melt controller U1, wiping line short circuit switch K3 and ice-melt controller switch K2 set up in the cabinet body, and K1 is the original power supply switch of power supply line, and K2 is ice-melt controller U1's switch, power supply switch K1 and ice-melt controller switch K2 interlocking. K3 is a trolley line short circuit switch, and is interlocked with a power switch K2 of the ice melting controller, namely K2 and K3 are simultaneously switched off or switched on. When the crane does not work, the power supply switch K1 is cut off, the power switch K2 of the ice melting controller and the trolley line short-circuit switch K3 are closed, and the ice melting device starts to work. And after ice melting is finished, the power supply switch K1 is switched on, the power supply switch K2 of the ice melting controller and the trolley line short-circuit switch K3 are switched on, and the crane obtains normal power supply.
The utility model discloses a wiping line high frequency ice-melt device ice-melt controller U1 that integrates adopts power electronics device as the major component for 20~50 kHz's low pressure, high frequency alternating current are exported to transformer T1 secondary. The ice melting controller U1 has a single path of 380Vac/3Ph/50Hz input voltage and four paths of output voltage which is as low as 12Vac/1 Ph/20-50 kHz, and is shown in figure 2.
The high frequency and integration greatly reduce the volume of the main transformer and the volume of the whole ice melting device, obviously reduce the cost of the device, and simultaneously, the high frequency can also effectively reduce the noise of the device.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and changes may be made without inventive changes in the technical solutions of the present invention.
Claims (9)
1. The utility model provides a wiping line ice-melt device that integrates which characterized in that: the ice melting device is connected with a power supply line of the sliding contact line and used for heating the sliding contact line; the ice melting device comprises an ice melting controller (U1) which is connected with the head end of the sliding contact line and provides heating alternating current, and a sliding contact line short-circuit switch (K3) which is connected with the tail end of the sliding contact line, wherein the on-off state of the sliding contact line short-circuit switch is consistent with the working state of the ice melting controller; the ice melting controller comprises a transformer (T1), a primary coil arranged on the primary side of the transformer (T1), and 4 secondary coils arranged on the secondary side of the transformer (T1), wherein an input power supply is connected with a three-phase full-wave rectification current circuit, three-phase alternating current is converted into 6-pulse direct current, the 6-pulse direct current is filtered and stored through an intermediate direct current link, the output end of the intermediate direct current link is connected with the input end of a single-phase high-frequency inverter, the output end of the single-phase high-frequency inverter is connected to the primary coil, the 4 secondary coils are respectively connected with the input ends of 4 paths of full-wave rectification circuits, the high-frequency alternating current after voltage reduction is converted into direct current, and 4 paths of low-voltage direct current are output after post-stage LC filtering.
2. The integrated trolley line de-icing apparatus of claim 1, wherein: the input end of the ice melting controller (U1) is connected with a power supply circuit through an ice melting controller power switch (K2).
3. The integrated trolley line de-icing apparatus of claim 1, wherein: the trolley line short-circuit switch (K3) is electrically interlocked with the ice melting controller power switch (K2).
4. The integrated trolley line de-icing apparatus of claim 1, wherein: and a power supply switch (K1) is arranged on a power supply circuit of the sliding contact line, and the power supply switch (K1) is electrically interlocked with a power switch (K2) of the ice melting controller.
5. The integrated trolley line de-icing apparatus of claim 1, wherein: the ice melting controller (U1) is provided with a single path of 380Vac/3Ph/50Hz input voltage and four paths of output voltage which is as low as 12Vac/1 Ph/20-50 kHz.
6. The integrated trolley line de-icing apparatus of claim 1, wherein: the transformer (T1) is a high-frequency step-down transformer.
7. The integrated trolley line de-icing apparatus of claim 1, wherein: the intermediate direct current link comprises a first capacitor (C1), a second capacitor (C2) and a first resistor (R1) and a second resistor (R2) which are connected in series, wherein the first resistor (R1) and the second resistor (R2) are respectively connected with the first capacitor (C1) and the second capacitor (C2) in parallel.
8. The integrated trolley line de-icing apparatus of claim 1, wherein: the single-phase high-frequency inverter comprises 4 insulated gate bipolar transistors which are respectively a first insulated gate bipolar transistor (V1), a second insulated gate bipolar transistor (V2), a third insulated gate bipolar transistor (V3) and a fourth insulated gate bipolar transistor (V4), wherein one end of the first insulated gate bipolar transistor (V1) is connected with one end of the second insulated gate bipolar transistor (V2) in series, one end of the third insulated gate bipolar transistor (V3) is connected with one end of the fourth insulated gate bipolar transistor (V4) in series, the other end of the first insulated gate bipolar transistor (V1) is connected with the other end of the third insulated gate bipolar transistor (V3), and the other end of the second insulated gate bipolar transistor (V2) is connected with the other end of the fourth insulated gate bipolar transistor (V4).
9. The integrated trolley line de-icing apparatus of claim 1, wherein: the ice melting controller (U1), the trolley line short circuit switch (K3) and the ice melting controller power switch (K2) are arranged in the cabinet body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022995203.2U CN214495459U (en) | 2020-12-14 | 2020-12-14 | Integrated trolley line ice melting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022995203.2U CN214495459U (en) | 2020-12-14 | 2020-12-14 | Integrated trolley line ice melting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214495459U true CN214495459U (en) | 2021-10-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022995203.2U Active CN214495459U (en) | 2020-12-14 | 2020-12-14 | Integrated trolley line ice melting device |
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| Country | Link |
|---|---|
| CN (1) | CN214495459U (en) |
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2020
- 2020-12-14 CN CN202022995203.2U patent/CN214495459U/en active Active
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