CN218549778U - Integrated driving plate and air conditioner - Google Patents
Integrated driving plate and air conditioner Download PDFInfo
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- CN218549778U CN218549778U CN202222137692.7U CN202222137692U CN218549778U CN 218549778 U CN218549778 U CN 218549778U CN 202222137692 U CN202222137692 U CN 202222137692U CN 218549778 U CN218549778 U CN 218549778U
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Abstract
The utility model relates to a household electrical appliances control technology field specifically provides an integration drive plate and air conditioner, aims at solving the combination of the fan drive module and the compressor drive function module of how to realize the air conditioner to reduce cost with walk the problem of the line degree of difficulty. Mesh for this reason, the utility model discloses an integration drive plate can realize supplying power for the compressor simultaneously, for the fan power supply to and the drive unit power supply for high pressure IPM module and low pressure IPM module. In this way, the utility model discloses can realize providing drive power supply for the fan of air conditioner and compressor through an integration drive plate, can effective reduce cost, simultaneously owing to need not to set up extra rectifier module, therefore also make and walk the line cost and walk the line degree of difficulty and reduce, effectively simplify the control process of fan and compressor.
Description
Technical Field
The utility model relates to a household electrical appliances control technology field specifically provides an integration drive plate and air conditioner.
Background
In an air conditioner with a three-phase power supply, a compressor of the air conditioner and a fan of an outdoor unit are generally controlled by two circuit boards. Even if the same circuit board is used, an IPM (Intelligent Power Module) device with a higher voltage rating needs to be used, which results in increased cost. Or an independent power supply is used for supplying power to the frequency conversion module of the fan, which needs additional power supplies and devices, and the switching power supply needed by the frequency conversion module of the fan cannot be shared with the switching power supply of the compressor module, so that the cost is increased, and the whole control process becomes complicated.
In practical application, a 380V input power supply is commonly used for a three-phase frequency converter at present, the voltage of a bus can reach DC540V, and when a fan driving module is used on a three-phase power supply frequency conversion module, the conventional 600V rated voltage product cannot be used for the rated voltage of the IPM; many manufacturers have implemented IPM with a 1200V rating. While the 1200VIPM product corresponds to the 600V product, and the price is relatively high. In other products, additional input power is used for rectification to supply power to the fan drive module. In this case, power supply searching is difficult, more devices are used, and wiring problems limit the use of this approach. Meanwhile, the method needs to provide a weak current power supply needed by an additional fan driving module as a power supply for starting the IPM.
Thus, there is a need in the art for a new fan and compressor drive scheme to address the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving how to realize the merger of fan drive module and compressor drive function module to reduce cost with walk the problem of the line degree of difficulty.
In a first aspect, the present invention provides an integrated drive board comprising a power input module, a high voltage IPM module, a voltage reduction module, a low voltage IPM module, and a switching power supply module;
the power supply input module is used for converting a three-phase alternating current power supply into high-voltage direct current voltage;
the high-voltage IPM module is used for converting high-voltage direct current voltage into power supply voltage capable of supplying power to the compressor;
the voltage reduction module is used for reducing the voltage of the high-voltage direct current voltage to obtain a medium-voltage direct current voltage;
the low-voltage IPM module is used for converting the medium-voltage direct-current voltage into a power supply voltage capable of supplying power to the fan;
the switching power supply module is used for converting the high-voltage direct-current voltage into weak-current direct-current voltage so as to supply power to the driving units of the high-voltage IPM module and the low-voltage IPM module.
In one technical scheme of the integrated driving board, the voltage reduction module comprises a switching device, a voltage reduction resistor and a diode, and the switching device, the voltage reduction resistor and the diode are sequentially connected in series;
the first end of the switching device is connected with the first output end of the power input module;
the cathode of the diode is connected with the first input end of the low-voltage IPM module, and the anode of the diode is connected with the voltage-reducing resistor.
In a technical solution of the above integrated driving board, the switching device is a relay.
In one technical scheme of the integrated drive board, a second input end of the low-voltage IPM module is connected to a second output end of the power input module, and a three-phase output end of the low-voltage IPM module supplies power to the fan.
In one technical solution of the above integrated driver board, the low-voltage IPM module further includes a first capacitor, a first end of the first capacitor is connected to a negative electrode of the diode, and a second end of the first capacitor is connected to a second output end of the power input module.
In one technical solution of the above integrated driving board, the power input module includes a rectifying unit, and the rectifying unit converts a three-phase ac power supply into a high-voltage dc voltage.
In a technical solution of the above integrated driving board, the rectifying unit includes a rectifying bridge and a second capacitor.
In one technical scheme of the integrated drive board, a first input end of the high-voltage IPM module is connected to a first output end of the power input module, a second input end of the high-voltage IPM module is connected to a second output end of the power input module, and a three-phase output end of the high-voltage IPM module supplies power to the compressor.
In one technical solution of the above integrated driver board, a first input end of the switching power supply module is connected to a first output end of the power input module, a second input end of the switching power supply module is connected to a second output end of the power input module, and the first output end and the second output end of the switching power supply module are respectively connected to the driving unit of the high-voltage IPM module and the driving unit of the low-voltage IPM module to supply power to the driving unit of the high-voltage IPM module and the driving unit of the low-voltage IPM module.
In a second aspect, the present invention provides an air conditioner, the air conditioner comprises any one of the above-mentioned integrated drive board technical solutions, an integrated drive board, a fan and a compressor, wherein the integrated drive board is the fan and the compressor provides a power supply voltage.
Under the condition that adopts above-mentioned technical scheme, the utility model discloses an integration drive plate can realize supplying power for the air conditioner compressor simultaneously, for the fan power supply to and for the drive unit power supply of high pressure IPM module and low pressure IPM module. In this way, the utility model discloses can realize providing drive power supply for the fan of air conditioner and compressor through an integration drive plate, can effective reduce cost, simultaneously owing to need not to set up extra rectifier module, therefore also make and walk the line cost and walk the line degree of difficulty and reduce, effectively simplify the control process of fan and compressor.
Drawings
Preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:
fig. 1 is a schematic diagram of the main components of an integrated drive plate according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a main component structure of an integrated driving plate according to an embodiment of the present invention.
List of reference numerals：
1: a power input module; 2: a high voltage IPM module; 3: a voltage reduction module; 4: a low voltage IPM module; 5: and a switching power supply module.
Detailed Description
Some embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that, in the description of the present invention, the terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1, fig. 1 is a schematic diagram of a main component structure of an integrated driving board according to an embodiment of the present invention. As shown in fig. 1, the integrated driving board in the embodiment of the present invention may include a power input module 1, a high voltage IPM module 2, a voltage reduction module 3, a low voltage IPM module 4, and a switching power supply module 5. The power input module 1 can be used for converting a three-phase alternating current power supply into a high-voltage direct current voltage; the high voltage IPM module 2 may be configured to convert the high voltage dc voltage into a supply voltage capable of powering the compressor; the voltage reduction module 3 can be used for reducing the high-voltage direct-current voltage to obtain a medium-voltage direct-current voltage; the low-voltage IPM module 4 may be configured to convert the medium-voltage dc voltage into a supply voltage capable of supplying power to the fan; the switching power supply module 5 may be configured to convert the high-voltage dc voltage into a low-voltage dc voltage to supply power to the driving units of the high-voltage IPM module 2 and the low-voltage IPM module 4.
The IPM (Intelligent Power Module) Module is an advanced Power switch device, and has the advantages of GTR (Transistor, power Transistor) high current density, low saturation voltage and high voltage resistance, and the advantages of MOSFET (Field Effect Transistor) high input impedance, high switching frequency and low driving Power, and the like, and is convenient to use, capable of effectively reducing the volume and the research and development time of a system, and capable of greatly enhancing the reliability of the system. The medium-voltage direct-current voltage is a voltage with a voltage value lower than the high-voltage direct-current voltage but far higher than the weak-current direct-current voltage.
In this embodiment, the utility model discloses an integration drive plate will be for the high-pressure IPM module 2 of compressor power supply, for the low pressure IPM module 4 of fan power supply and for the switching power supply module 5 of the drive unit power supply of high-pressure IPM module 2 and low pressure IPM module 4 all sets up on a circuit board, has considered to have partly the same circuit structure between the drive module of fan and the drive module of compressor among the prior art, merges this partly the same circuit structure, makes the utility model discloses the integration drive plate can realize simultaneously for the compressor power supply, for the fan power supply. Meanwhile, a switch power supply module is further arranged on the integrated drive board of the novel embodiment and converts high-voltage direct-current voltage into weak-current direct-current voltage, so that power supply of a drive unit of the high-voltage IPM module 2 and the low-voltage IPM module 4 can be realized. In this way, the utility model discloses can just can realize providing the main power supply for the fan of air conditioner and compressor through an integration drive plate, can also provide the light current power for drive unit for the total cost for compressor power supply and not fan power supply is effectively reduced, simultaneously owing to need not to set up extra rectifier module, therefore also make and walk the line cost and walk the line degree of difficulty and reduce, effectively simplify the control process of fan and compressor.
In one embodiment, the high voltage DC voltage may be DC540V, and the medium voltage DC voltage may be DC310V.
An embodiment of the present invention will be described in detail with reference to fig. 2, and fig. 2 is a schematic diagram of a main component structure of an integrated driving board according to an embodiment of the present invention.
In one embodiment, as shown in fig. 2, the power input module 1 includes a rectifying unit that converts a three-phase ac power into a high-voltage dc voltage.
In the present embodiment, the three-phase ac power source can obtain a relatively stable DC voltage, such as DC540V, by rectification of the rectifying unit.
In one embodiment, as shown in fig. 2, the rectifying unit may include a rectifying bridge and a second capacitor (C1).
In the embodiment, the rectifier bridge can realize the rectification of the input three-phase input power supply, and the combination of the rectifier bridge and the second capacitor (C1) can realize more effective rectification and smoothing effects, so that the obtained direct-current voltage is more stable.
In one embodiment, as shown in fig. 2, a first input terminal of the high voltage IPM module 2 is connected to a first output terminal of the power input module 1, a second input terminal of the high voltage IPM module 2 is connected to a second output terminal of the power input module 1, and a three-phase output terminal of the high voltage IPM module 2 supplies power to the compressor. The high-voltage IPM module may include a power switch device.
In this embodiment, the high-voltage IPM module 2 may be directly connected to the output end of the power input module 1, and the high-voltage IPM module 2 converts the high-voltage dc voltage output by the power input module 1 into a supply voltage capable of supplying power to the compressor, and the three-phase output end of the high-voltage IPM module is respectively connected to the three-phase input end of the compressor to supply power to the compressor.
In one embodiment, as shown in fig. 2, the voltage-reducing module 3 includes a switching device (KY 1), voltage-reducing resistors (R1 and R2), and a diode (D1), and the switching device (KY 1), the voltage-reducing resistors (R1 and R2), and the diode (D1) are sequentially connected in series. The first end of the switching device (KY 1) is connected with the first output end of the power input module 1; the cathode of the diode (D1) is connected to the first input terminal of the low-voltage IPM module 4, and the anode of the diode (D1) is connected to the step-down resistors (R1 and R2). The switching device can control the connection or disconnection of the voltage reduction module 3 according to the requirements of the practical application process. The voltage reduction module 3 can generate a voltage reduction through a voltage reduction resistor to ensure that the supply voltage for the low-voltage IPM module 4 does not exceed its rated voltage.
In one embodiment, the switching device may be a relay, and the relay may be connected to a relay control unit, and the relay is controlled by the relay control unit to control the on/off of the relay. If the fan needs to be powered, the relay can be controlled to be closed; if the fan is not required to be powered, the relay can be controlled to be switched off.
In one embodiment, the second input terminal of the low voltage IPM module 4 is connected to the second output terminal of the power input module 1, and the three-phase output terminals of the low voltage IPM module 4 are respectively connected to the three-phase input terminals of the fans to supply power to the fans.
In the present embodiment, as shown in fig. 2, the high-voltage dc power output from the power output terminal is stepped down by the step-down module 3 to supply power to the low-voltage IPM module 4. The low-voltage IPM module may comprise a power switch device.
In one embodiment, as shown in fig. 2, the low-voltage IPM module 4 further includes a first capacitor (C2), a first end of the first capacitor (C2) is connected to the negative electrode of the diode (D1), and a second end of the first capacitor (C2) is connected to the second output end of the power input module 1.
In this embodiment, the first capacitor (C2) is disposed at the input end of the low-voltage IPM module 4, so that the function of rectification and filtering can be realized, and the voltage entering the low-voltage IPM module is more stable.
In one embodiment, as shown in fig. 2, a first input terminal of the switching power module 5 is connected to a first output terminal of the power input module 1, a second input terminal of the switching power module 5 is connected to a second output terminal of the power input module 1, and the first output terminal and the second output terminal of the switching power module 5 are respectively connected to the driving unit of the high voltage IPM module and the driving unit of the low voltage IPM module to supply power to the driving unit of the high voltage IPM module and the driving unit of the low voltage IPM module.
In this embodiment, the switching power supply module 5 converts the high-voltage dc voltage into the weak-current dc voltage, the output terminal of the switching power supply module 5 is connected to the driving unit of the high-voltage IPM module and the driving unit of the low-voltage IPM module, respectively, the driving unit of the high-voltage IPM module is connected to the high-voltage IPM module 2, and the driving unit of the low-voltage IPM module is connected to the low-voltage IPM module 4. Through the arrangement, the weak-current direct-current voltage can supply power for the driving unit of the high-voltage IPM module and the driving unit of the low-voltage IPM module, so that the normal work of the high-voltage IPM module and the low-voltage IPM module 4 is ensured.
In a second aspect, the present invention also provides an air conditioner.
In an embodiment of the air conditioner according to the present invention, the air conditioner includes the integrated driving plate, the fan and the compressor in the above-mentioned integrated driving plate embodiment. The integrated drive plate provides a supply voltage for the fan and the compressor.
So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.
Claims (10)
1. An integrated drive board is characterized by comprising a power input module, a high-voltage IPM module, a voltage reduction module, a low-voltage IPM module and a switch power supply module;
the power input module is used for converting a three-phase alternating current power supply into high-voltage direct current voltage;
the high-voltage IPM module is used for converting high-voltage direct current voltage into power supply voltage capable of supplying power to the compressor;
the voltage reduction module is used for reducing the voltage of the high-voltage direct current voltage to obtain a medium-voltage direct current voltage;
the low-voltage IPM module is used for converting the medium-voltage direct-current voltage into a power supply voltage capable of supplying power to the fan;
the switching power supply module is used for converting the high-voltage direct-current voltage into weak-current direct-current voltage so as to supply power to the driving units of the high-voltage IPM module and the low-voltage IPM module.
2. The integrated driver board of claim 1, wherein the voltage-reducing module comprises a switching device, a voltage-reducing resistor and a diode, the switching device, the voltage-reducing resistor and the diode being connected in series in this order;
the first end of the switching device is connected with the first output end of the power input module;
the cathode of the diode is connected with the first input end of the low-voltage IPM module, and the anode of the diode is connected with the voltage-reducing resistor.
3. The integrated drive plate of claim 2, wherein the switching device is a relay.
4. The integrated drive plate of claim 3, wherein a second input of the low voltage IPM module is coupled to a second output of the power input module, and a three-phase output of the low voltage IPM module provides power to the fan.
5. The integrated driver board of claim 4, wherein the low voltage IPM module further comprises a first capacitor having a first terminal connected to a cathode of the diode and a second terminal connected to the second output terminal of the power input module.
6. The integrated drive board of claim 1, wherein the power input module comprises a rectifying unit that converts a three-phase alternating current power source to a high voltage direct current voltage.
7. The integrated drive plate of claim 6, wherein the rectifying unit comprises a rectifying bridge and a second capacitor.
8. The integrated drive plate of claim 1, wherein a first input of the high voltage IPM module is coupled to a first output of the power input module and a second input of the high voltage IPM module is coupled to a second output of the power input module, and a three-phase output of the high voltage IPM module powers the compressor.
9. The integrated driver board of claim 1, wherein a first input terminal of the switching power module is connected to a first output terminal of the power input module, a second input terminal of the switching power module is connected to a second output terminal of the power input module, and the first output terminal and the second output terminal of the switching power module are respectively connected to the driving unit of the high voltage IPM module and the driving unit of the low voltage IPM module to supply power to the driving unit of the high voltage IPM module and the driving unit of the low voltage IPM module.
10. An air conditioner characterized in that it comprises an integrated drive plate, fan and compressor as claimed in any one of claims 1 to 9, said integrated drive plate providing a supply voltage for said fan and said compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222137692.7U CN218549778U (en) | 2022-08-15 | 2022-08-15 | Integrated driving plate and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222137692.7U CN218549778U (en) | 2022-08-15 | 2022-08-15 | Integrated driving plate and air conditioner |
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| Publication Number | Publication Date |
|---|---|
| CN218549778U true CN218549778U (en) | 2023-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222137692.7U Active CN218549778U (en) | 2022-08-15 | 2022-08-15 | Integrated driving plate and air conditioner |
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|---|---|
| CN (1) | CN218549778U (en) |
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- 2022-08-15 CN CN202222137692.7U patent/CN218549778U/en active Active
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