JP2005257126A - Outdoor machine of air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an outdoor machine of an air conditioner capable of coping with EMC (Electro-Magnetic Compatibility) and EMI (Electro-Magnetic Interference) by remarkably reducing the transfer of noise between a connection wire and an electric component to prevent the noise from being emitted to the external via the electric component and a power source. <P>SOLUTION: This outdoor machine of the air conditioner is composed of a compressor, a heat exchanger, an air blower, an electric component case 4, and the electric component composed of a filter part 7, a control part 8 and a driving part 9 connected with the compressor by the connection wire 10, successively mounted from one side toward the other side in the electric component case 4, and a protector 12 for cutting noise, covering the connection wire 10, is mounted in the electric component case 4. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an outdoor unit of an air conditioner, and more specifically, connected to a filter unit, a control unit, and a compressor from one side to the other side in an electrical component box provided in the upper part of the main body. A drive unit connected by a wire is sequentially arranged to reduce transmission and reception of noise between these electrical components, and a noise blocking protector that covers the connection wire is provided to provide a connection between the electrical component and the connection wire. It relates to the one that greatly reduces the transmission and reception of noise.

  As an outdoor unit of an air conditioner that can prevent the generation of harmful noise, there is one that absorbs noise generated from control electrical components by installing a metal sheet so as to surround the control electrical components. (For example, refer to Patent Document 1).

  In addition, as a shield structure for electrical equipment containers, control components for electrical components of air conditioners cause malfunctions in the control circuit due to external noise. In order to solve this problem, it was difficult to prevent the noise emitted from the control equipment inside the air from being released to the outside from the air conditioner. There has been an electrical component box and a structure in which the electrical lid of the electrical component box is made of a conductive material and shielded (see, for example, Patent Document 2).

  However, for example, when electrical components such as a filter unit, a control unit, and a drive unit for driving a compressor are accommodated in the electrical component box, they cannot always be arranged in the order of the filter unit, the control unit, and the drive unit. If it is difficult to reduce the generation of noise or make it difficult to receive noise depending on the arrangement, or the connection line connecting the drive unit and the compressor is routed in the electrical component box The electrical components are subject to noise generated from this connection line, which may adversely affect the electrical components, or noise may be emitted to the outside through the electrical components or the power supply unit. In particular, EMC (Electro-Magnetic Compatibility) = EMI (Electro-Magnetic Interface) consideration has not been made so as to be able to cope with erence (electromagnetic interference).

  In addition, the control unit is configured by a control board formed separately from other electrical components, so that, for example, other electrical units other than the control board can be used for other outdoor units having different heat exchange capabilities. It was desired to be able to use in common only by exchanging.

JP-A-5-133570 (first page to second page, FIGS. 1 to 2) JP 2000-124653 A (pages 1 to 5 and FIGS. 1 to 3)

  In view of the above-described problems, the present invention has a filter unit, a control unit including an individual control board, and a connecting line connected to the compressor, from one side to the other side in an electrical component box provided at an upper portion in the main body. In order to reduce noise between these electrical components by sequentially arranging the drive units connected by the above, and to provide a noise blocking protector that covers the connection line, noise between the electrical component and the connection line Greatly reduces the amount of noise exchanged and prevents noise from being emitted to the outside via the electrical components and power supply unit, so that EMC (Electro-Magnetic Compatibility) and EMI (Electro-Magnetic Interference) It is an object of the present invention to provide an outdoor unit for an air conditioner that can handle the above.

  In order to solve the above-described problem, the present invention provides a connection line connecting a compressor provided on one side of the main body and an electrical component provided on the other side, and noise provided in the electrical component box. It is configured to be covered by a blocking protector.

  Further, the protector is provided at the upper part of the electrical component box.

  According to the present invention, the electrical component box provided in the upper part of the main body is connected to the filter unit, the control unit including the individual control board, and the compressor from one side to the other side by the connection line. Sequentially arrange the drive unit to reduce the transmission and reception of noise between these electrical components, and provide a noise blocking protector that covers the connection line to greatly transfer noise between the electrical component and the connection line This makes it possible to share with other models with different heat exchange capabilities of the control unit, and the trouble of winding a noise blocking member such as an aluminum tape around the connection line. For example, the electromagnetic wave noise peculiar to the inverter can be effectively cut off, and the electric component can receive the noise generated from the connection line. Therefore, there is no risk of adversely affecting the electrical components, or noise may be emitted to the outside via the electrical components or the power supply unit, and EMC (Electro-Magnetic Compatibility) , An outdoor unit of an air conditioner that can cope with EMI (Electro-Magnetic Interference).

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail as examples based on the attached drawings.
1 is a perspective view showing a state in which a front panel and an upper panel of an outdoor unit of an air conditioner according to Embodiment 1 of the present invention are removed, and FIG. 2 is an upper panel of the outdoor unit of the air conditioner according to Embodiment 1 of the present invention. FIG. 3 is a perspective view of a main part of the outdoor unit of the air conditioner according to the first embodiment of the present invention, and FIG. 4 is a schematic view showing the outdoor unit of the air conditioner according to the first embodiment of the present invention. FIG. 5 is a cross-sectional view taken along line AA of FIG. 2 showing Example 1 of the electrical component box.

  6 is a perspective view showing a state in which the front panel and the top panel of the outdoor unit of the air conditioner according to the second embodiment of the present invention are removed, and FIG. 7 is a top panel of the outdoor unit of the air conditioner according to the second embodiment of the present invention. FIG. 8 is a front view of the main part of the outdoor unit of the air conditioner according to the second embodiment of the present invention, and FIG. 9 is the main part of the outdoor unit of the air conditioner according to the second embodiment of the present invention. FIG. 10 is a main part plan view showing an outdoor unit of an air conditioner according to a second embodiment of the present invention, and FIG. 11 is a cross-sectional view taken along line AA of FIG. 7 showing an example of the second embodiment of the electrical component box. 12 is an exploded perspective view showing a second example of the electrical component box, FIG. 13 is a sectional view taken along the line AA of FIG. 7 showing another example of the second example of the electrical component box, and FIG. 14 is a second example of the electrical component box. FIG.

  The outdoor unit of the air conditioner according to the present invention is a perspective view and a plan view showing a state in which the front panel and the top panel are removed and the electrical cover is opened. The inside of the main body is partitioned into a compressor chamber B having a compressor 1 and a heat exchanger chamber C having a heat exchanger 2 and a blower 3 opposite to the heat exchanger 2, and the compressor chamber B and the heat exchanger chamber. An electrical component box 4 is provided over the upper part of C, and a power supply unit 6 provided with a power supply terminal is provided in the compressor room B. For example, the outdoor unit is a plurality of indoor units not shown for multi-type use. When connected to a machine, the power introduced from the power supply unit 6 to the outdoor unit is supplied from the outdoor unit to the indoor unit.

  With the above configuration, for example, the electrical component box is compactly formed, and compared with the case where the electrical component box is provided only at the upper portion of the compressor chamber B, the size of the electrical component box 4 is formed larger and installed at the upper portion of the outdoor unit body. As a result, it is possible to arrange the electrical components inside without being densely arranged, which is an advantageous configuration.

  In addition, as shown in FIGS. 2 and 7, the electrical component provided in the electrical component box 4 has a filter unit 7 connected to the power source unit 6 on one side, and the filter unit 7 is connected to the other side. A control unit 8 composed of a control board formed separately from other electrical components and a drive unit 9 for driving the compressor 1 are sequentially arranged. As shown in FIG. 8, a heat sink 11 is provided on the side of the blower 3 provided in the heat exchanger chamber C, so that an effective heat radiation effect by air cooling can be achieved.

  Thereby, the compressor 1 provided in the compressor chamber B located at one side lower part of the electrical component box 4 and the drive unit 9 disposed on the other side of the electrical component box 4 are connected to the connection line. 10, and the connection line 10 is routed in the electrical component box 4.

  In addition, the control unit 8 includes a control board formed separately from other electrical components, so that, for example, other outdoor units having different heat exchange capabilities can also be used. By exchanging only the electrical components, it can be used in common, which is advantageous in reducing costs.

  On the other hand, when it is not necessary to consider commonality of the control unit 8, the filter unit 7, the control unit 8, and the drive unit 9 may be formed as a single electrical board.

  In the electrical component box 4, as shown in FIGS. 4 and 5, 10, 11, and 13, the drive unit 9 is connected to the compressor 1 provided in the compressor chamber B. As shown by the arrow a in FIG. 8, the connection line 10 is routed, and the air introduction part 4b is provided on one side and the air lead-out part 4c is provided on the other side. The electrical components arranged inside are cooled by the air flow introduced from the air introduction part 4b and led out from the air lead-out part 4c.

  Next, the connection line 10 routed in the electrical component box 4 is covered by a noise blocking protector 12, and noise due to the connection line 10 is emitted to the outside through the electrical component and the power supply unit 6. A configuration in which there is no fear of being performed will be described.

  The electrical component box 4 is made of, for example, a sheet metal made of steel or aluminum alloy, and is provided at the upper part of the main body of the outdoor unit in a grounded state. As shown in FIG. 5, a noise blocking protector 12 formed of, for example, a sheet metal made of steel or aluminum alloy is firmly fixed between the electrical component and the connecting wire 10 by screw tightening or spot welding. Is attached.

  As shown in FIG. 5, the upper part of the electrical component box 4 is covered by an electrical lid 5 that also serves as a top plate made of steel or aluminum alloy that covers the upper part of the outdoor unit body. The upper part of the protector 12 opened by a part of 5 can be covered.

  Further, the protector 12 is formed to have a step portion 12a shown in FIG. 5, and the step portion 12a is formed as an upper portion spaced upward from the bottom portion of the electrical component box 4. Since the lower space of the stepped portion 12a can be used as an effective space 16 in which an electrical component such as the control unit 8 can be arranged, the control unit 6 can be enlarged and arranged at the bottom of the electrical component box 4. It is advantageous to make it possible to prevent electrical components and wiring from becoming dense.

  The electrical component is configured such that electric power is introduced from the power supply unit 6 and current flows to the filter unit 7, the control unit 8, and the drive unit 9, thereby producing an effect of reducing noise generation. In addition to this, the protector 12 is used in the case where the outdoor unit is increased in size in order to increase the capacity as an air conditioner, such as export products especially for Europe and the United States. Since a current of, for example, 23 to 25 A (ampere) flows through the connection line 10, it has an important function of effectively reducing noise between the connection line 10 and the electrical component. Become.

  By providing the protector 12, it is possible to save time and labor such as winding a noise-blocking member such as an aluminum tape around the connecting wire 10 and effectively, for example, an electromagnetic wave noise peculiar to an inverter. Since the electrical component is no longer subjected to noise from the connection line 10, the electrical component is not adversely affected, or noise is generated outdoors via the electrical component and the power supply unit 6. There is no risk of being discharged outside the machine body.

  As a result, EMC (Electro-Magnetic Compatibility) = EMI (Electro-Magnetic Interference = Electromagnetic Interference), and the EU and the United States where laws related to the EMC and EMI have been enacted. However, it will be an outdoor unit of high-quality air conditioner that can be exported as a compatible product.

Next, Example 2 will be described with reference to FIGS.
Since the configuration other than the protector 12 is the same as that described in the first embodiment, detailed description thereof is omitted to avoid duplication.

  As shown in FIGS. 9 to 12 as an example of the second embodiment, the protector 12 is integrally formed with the electrical component box 4 made of sheet metal, and includes an open portion that opens upward and laterally. A housing portion 13a for housing the connecting wire 10 and a cover portion 14a formed integrally with the electrical cover 5 made of sheet metal corresponding to the open portion.

  Alternatively, as another example of the second embodiment, as shown in FIGS. 13 and 14, the protector 12 is integrally formed with the electrical cover 5 made of sheet metal, and includes an open portion to connect the connection line 10. The housing portion 13b to be housed and the cover portion 14b formed integrally with the electrical component box 4 made of sheet metal corresponding to the open portion.

  Since the protector 12 is configured by the accommodating portion 13a or 13b and the cover portion 14a or 14b, the connecting wire 10 can be accommodated and the four sides thereof can be accurately covered. The electrical component can be effectively protected from the generated noise.

  The protector 12 is a dedicated member that is formed integrally with the electrical component box 4 and the electrical lid 5 that are used as specific members constituting the outdoor unit of the air conditioner. Therefore, there is no need to manufacture and assemble them individually, so that there is no problem that the number of parts increases or extra man-hours for assembly occur.

  The electrical component box 4 and the electrical lid 5 are made of, for example, a sheet metal made of steel or aluminum alloy, and as shown in FIGS. 11 and 12, the housing portion 13a formed integrally therewith The cover part 14a and the electrical component box 4 are correctly accommodated along the longitudinal direction of the electrical component box 4 so that the four sides are accurately covered so that noise can be effectively reduced. Become.

  Alternatively, the electrical component box 4 and the electrical lid 5 are made of, for example, sheet metal made of steel or aluminum alloy, and as shown in FIGS. 13 and 14, the housing portion 13b formed integrally therewith The connecting portion 12 is accurately accommodated along the longitudinal direction of the electrical component box 4 by the cover portion 14b and the inner wall 4a of the electrical component box 4, and the four sides are accurately covered. Noise can be effectively reduced.

  Since the electrical component box 4 and the electrical lid 5 are integrally formed with the protector 12 made of sheet metal, noise can be effectively reduced as described above. Even if the main member such as the outer shell forming the outer shell is made of a synthetic resin, there is a risk that noise may be emitted to the outside of the outdoor unit main body through the electrical component and the power supply unit 6. Disappears.

  In addition, the storage portions 13a and 13b are configured as upper portions spaced apart upward from the bottom portion without the lower end portion 13c occupying the bottom portion of the electrical component box 3.

  Accordingly, the lower space of the housing parts 13a and 13b can be used as an effective space 16 in which an electrical component such as the control unit 8 can be placed. Therefore, the control unit 6 can be made larger and the electrical component box 4 This is advantageous in that it can be arranged at the bottom, and it is possible to prevent the density of electrical components and wiring.

  As described above, in the case of the outdoor unit for an air conditioner according to the present invention, noise is generated in the electrical component box 4 provided over the compressor chamber B and the heat exchanger chamber C. It becomes possible to sequentially arrange in a state where it is difficult to occur, and by providing the protector 12, noise between the connection line 10 and the electrical component can be reduced, and the stepped portion 12a and the housing Forming the parts 13a and 13b in the upper part in the electrical component box 4 is advantageous in preventing the electrical components and wirings from being densely packed in the electrical component box 4.

  That is, since the transfer of noise between the connection line 10 and the electrical component can be greatly reduced, for example, electromagnetic wave noise peculiar to an inverter can be effectively reduced, or noise generated from the connection line 10 can be reduced. There is no risk that the electrical components will be affected, and the electrical components will be adversely affected, or noise may be emitted to the outside of the outdoor unit main body via the electrical components and the power supply unit 6. It becomes an outdoor unit of an air conditioner adapted to be compatible with -Magnetic Compatibility = electromagnetic environment compatibility) and EMI (Electro-Magnetic Interference = electromagnetic interference).

FIG. 1 is a perspective view showing a state in which a front panel and an upper panel of an outdoor unit of an air conditioner according to Embodiment 1 of the present invention are removed. It is a top view which shows the state which removed the upper surface panel of the outdoor unit of the air conditioner by Example 1 of this invention. It is a principal part perspective view of the outdoor unit of the air conditioner by Example 1 of this invention. It is a principal part top view which shows the outdoor unit of the air conditioner by Example 1 of this invention. It is AA sectional drawing of FIG. 2 which shows Example 1 of an electrical component box. It is a perspective view which shows the state which removed the front panel and upper surface panel of the outdoor unit of the air conditioner by Example 2 of this invention. It is a top view which shows the state which removed the upper surface panel of the outdoor unit of the air conditioner by Example 2 of this invention. It is a principal part front view of the outdoor unit of the air conditioner by Example 2 of this invention. It is a principal part perspective view of the outdoor unit of the air conditioner by Example 2 of this invention. It is a principal part top view which shows the outdoor unit of the air conditioner by Example 2 of this invention. It is AA sectional drawing of FIG. 7 which shows an example of Example 2 of an electrical component box. It is a disassembled perspective view which shows Example 2 of an electrical component box. It is AA sectional drawing of FIG. 7 which shows the other example of Example 2 of an electrical component box. It is a disassembled perspective view which shows Example 2 of an electrical component box.

Explanation of symbols

A Bottom plate B Compressor room C Heat exchanger room D Partition plate 1 Compressor 2 Heat exchanger 3 Blower 4 Electrical component box
4a inner wall
4b Air inlet
4c Air outlet part 5 Electrical cover 6 Power supply part 7 Filter part 8 Control part 9 Drive part
10 Connection line
11 Heat sink
12 Protector
13a containment
13b containment
13c Lower end
14a Cover part
14b Cover part
15 Front panel
16 Effective space

Claims (2)

  A connection line connecting a compressor provided on one side of the main body and electrical components provided on the other side is covered by a noise blocking protector provided in the electrical component box. Air conditioner outdoor unit.   The outdoor unit for an air conditioner according to claim 1, wherein the protector is provided at an upper part of the electrical component box.

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