JP2012247095A - Cover, and outdoor unit of air conditioning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cover that can prevent dust or dirt from lying on a contact of a wired electric component and improve maintainability of the electric part, and to provide an outdoor unit of an air conditioning device including the cover.SOLUTION: The cover is held by a support plate 42 and mounted on the wired electric component 90 to cover the wired electric component 90 from the wired electric component 90 side. The cover has a hole 104 through which a cable 91 to be connected to the wired electric component 90 is passed and a slit 105A to lead the cable 91 to the hole 104 when the cover is mounted on the wired electric component 90. A part 106 at the side of the slit 105A deforms elastically when the cable 91 is led to the hole 104 by the slit 105A, and the cover is supported by the cable 91 led from the hole 104 with the part 106 restored after the cable 91 is passed through the hole 104.

Description

  The present invention relates to a cover mounted on an electrical component to be electrically wired, and an outdoor unit of an air conditioner in which the cover is mounted on the electrical component.

  Generally, in an outdoor unit of an air conditioner, a cover is attached to an electrical component such as a terminal block or magnet switch provided in the electrical unit to prevent dust and dirt from adhering to the contact point to which the wiring is connected. is doing. Since it is necessary to connect the wiring to the contact of the electrical component, this type of cover is formed with an opening that faces the connection position of the wiring (for example, see Patent Document 1).

JP 2010-78203 A

However, since the opening of the cover faces the connection position of the wiring, it has not been possible to effectively prevent dust and dirt from adhering to the contacts. In addition, since this type of cover is fixed with a fixing screw or the like, it cannot be easily attached and detached, and the maintainability of the electrical parts is reduced.
The object of the present invention has been made in consideration of the above-mentioned circumstances, and prevents dust and dirt from adhering to the contacts of the electrical components to be electrically wired, and improves the maintainability of the electrical components. An object of the present invention is to provide a cover that can be used, and an outdoor unit of an air conditioner equipped with the cover.

In order to solve the above-mentioned problems, the present invention is mounted on an electrical component fixed to a support plate and electrically wired so as to cover the electrical component from the electrical component side, and the wiring connected to the electrical component is derived. And a slit that guides the wiring into the hole when mounted on the electrical component, and a part of the side of the slit is elastically deformed when the wiring is introduced into the hole through the slit. In addition, after the wiring is introduced into the hole, the part is restored and supported by the wiring led out from the hole.
According to this configuration, a part of the side of the slit that guides the wiring to the hole is elastically deformed, and this part is restored after the wiring is introduced into the hole, so that the connection position of the wiring faces the opening. Wiring can be connected without any problem, and since the cover is supported by the wiring led out from the hole, the cover can be easily attached and detached. As a result, it is possible to prevent dust and dirt from adhering to the contacts of the electrical component and improve the maintainability of the electrical component.

  In this configuration, the slit width of the slit may be formed narrower than the diameter of the wiring. Moreover, the said cover is good also as a structure provided with the notch extended from the said hole to the other side of the said slit. Further, the cover is formed by bending a plate-shaped resin member into a substantially rectangular box shape, and a holding tool for holding the cover in a substantially rectangular box shape is formed integrally with the member. It is good also as a structure which consists of a nail | claw part and the insertion hole in which the said nail | claw part is inserted, and the hook part hooked by the said insertion hole was provided in the said nail | claw part. The cover may have a configuration in which upper and lower surfaces and left and right surfaces are formed symmetrically.

  Further, the present invention includes a partition plate extending vertically to divide the inside of the housing into a heat exchange chamber and a machine room, and a heat exchanger and a blower are accommodated in the heat exchange chamber, and a compressor and an electrical component are accommodated in the machine room. In the outdoor unit of the air conditioner that houses the unit, a ventilation port is formed in the outer plate of the housing, and the air introduced from the ventilation port is caused to flow to the back side of the electrical unit, and the air unit is A support plate parallel to the flow is provided, and is projected from the support plate onto the air flow path of the air, and is mounted on the electrical component to be electrically wired so as to cover the electrical component from the electrical component side, and connected to the electrical component A hole through which the wiring to be led out is provided, and a slit for guiding the wiring into the hole when the wiring is mounted on the electrical component, and when the wiring is introduced into the hole through the slit, Some elastically deformed Characterized in that after the introduction of the wire into the hole provided a cover portion wherein is supported by the wiring to be led out from the hole by restoring.

  According to the present invention, a hole fixed to the support plate and attached to the electrical component to be electrically wired so as to cover the electrical component from the electrical component side, and a hole from which the wiring connected to the electrical component is led out, A slit that guides the wiring into the hole when mounted on the electrical component, and when the wiring is introduced into the hole through the slit, a part of the side of the slit is elastically deformed to the hole. After the introduction of the wiring, the part is restored and supported by the wiring led out from the hole, so that the wiring can be connected without facing the opening of the wiring connection position, and the cover Can be supported by the wiring led out from the hole, dust and dust can be prevented from adhering to the contact of the electrical component, and the cover can be easily attached and detached to improve the maintainability of the electrical component.

It is an external appearance perspective view of the outdoor unit which concerns on one Embodiment of this invention. It is a perspective view which shows the internal structure of an outdoor unit. It is a perspective view of the internal structure of the back side of an outdoor unit. It is a perspective view which shows an electrical equipment unit. It is a perspective view of the electrical equipment unit which shows the state which attached the cover to the magnet switch. It is a perspective view of a cover. It is an expanded view of a cover.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
The air conditioner according to the present embodiment includes an outdoor unit 10 and an indoor unit (not shown), and performs a cooling operation and a heating operation by flowing a refrigerant through a refrigerant circuit connected by a refrigerant pipe. The outdoor unit 10 is installed outside, exchanges heat with outdoor air, condenses the refrigerant during the cooling operation and releases heat to the outside air, and evaporates the refrigerant during the heating operation to take in heat from the outside air. In addition, the directions such as up and down and left and right described below indicate directions when the outdoor unit 10 is viewed from the front side in a state where the outdoor unit 10 is installed.

  FIG. 1 is a perspective view of the outdoor unit 10. The outdoor unit 10 includes a substantially rectangular parallelepiped box-shaped unit case (housing) 11, and the unit case 11 includes a bottom plate 12, a ceiling panel 13, a front panel 14, and an outer plate 15. The inside of the unit case 11 is vertically partitioned by a partition plate 60 (described later) standing on the bottom plate 12 and divided into a heat exchange chamber R1 and a machine chamber R2. The front panel 14 includes a first front panel 14A and a second front panel 14B that are divided into left and right parts with a partition plate 60 as a boundary. By removing the first front panel 14A, the operator can perform maintenance work on components in the heat exchange chamber R1 from the front side of the outdoor unit 10, and by removing the second front panel 14B, the operator can perform outdoor work. Maintenance work of parts in the machine room R2 can be performed from the front side of the unit 10.

  In addition, the first front panel 14A on the heat exchange chamber R1 side is formed with two air outlets 28 and 28 that blow out the air heat-exchanged inside the heat exchange chamber R1 in the vertical direction. The air outlets 28 and 28 are each covered with a net-like fan guard 29. Although not shown, the air outlets 28 and 28 are covered with, for example, a round flange-shaped fan cover, and a blower 22 described later is provided in the opening of the fan cover.

  FIG. 2 is a perspective view of the outdoor unit 10 with the ceiling panel 13, the front panel 14, and the outer plate 15 removed. The inside of the unit case 11 is divided into a heat exchange chamber R1 and a machine room R2 by a partition plate 60 standing on the bottom plate 12. As shown in FIG. 2, the heat exchanger 21 accommodates the heat exchanger 21 on the back side and the blowers 22 and 22 arranged in the vertical direction on the front side. The heat exchanger 21 is formed by being bent into a substantially L shape when viewed from above, and is disposed along the back surface from the left side surface (outer side surface) of the heat exchange chamber R1. Thus, the heat exchanger 21 forms the left side surface and the back surface of the heat exchange chamber R1 (that is, the unit case 11), and the entire exposed surface from the left side surface to the back surface functions as a ventilation path (suction port). Although not shown, the surface of the heat exchanger 21 is covered with a finger made of a resin net or the like in order to prevent a human body or the like from contacting the heat exchanger 21.

  The blower 22 is attached to a pair of left and right struts 24L and 24R disposed in the heat exchange chamber R1. These struts 24L and 24R hook the upper ends of the struts 24L and 24R to the upper edge of the heat exchanger 21, respectively, and the lower ends of the struts 24L and 24R are fixed to the bottom plate 12 by screws.

  The blower 22 includes a fan motor 26 fixed to the upper portions of the support posts 24L and 24R via a pedestal 25, and a propeller fan (axial fan) 27 attached to the shaft of the fan motor 26. The propeller fan 27 is disposed close to the front side of the heat exchange chamber R1. When the propeller fan 27 is rotationally driven by the fan motor 26, outside air is sucked into the heat exchange chamber R1 from the periphery of the outdoor unit 10, more specifically from the back side and the left side of the heat exchanger 21, and heat is generated. Heat is exchanged with the refrigerant flowing in the exchanger 21, and the air is discharged out of the outdoor unit 10 through the air outlets 28 and 28 provided on the front surface of the heat exchange chamber R1. That is, the outdoor unit 10 is configured as a front blowing type that blows out air after heat exchange from the front.

In addition, a compressor circuit, an accumulator 32, and a refrigerant circuit component such as a valve body such as a four-way valve 33 or an expansion valve (not shown) constituting a part of the refrigerant circuit are connected to the machine room R2 by piping. It is accommodated in a substantially lower space of R2.
In this configuration, the compressor 31 and the accumulator 32 are arranged side by side in the vertical direction in the machine room R2. Specifically, the compressor 31 is installed on the bottom plate 12, and the accumulator 32 is attached to the partition plate 60 above the compressor 31. Thereby, the installation space of the compressor 31 and the accumulator 32 in the machine room R2 can be kept small.

  A support piece 36 is disposed at a substantially intermediate position on the front side of the machine room R2, and a gas pipe service valve 37 and a liquid pipe service valve 38 are fixed to the support piece 36. The gas pipe service valve 37 and the liquid pipe service valve 38 are connected to a gas pipe and a liquid pipe (not shown) of unit piping extending from the indoor unit, respectively, thereby constituting a refrigerant circuit for circulating the refrigerant.

  The partition plate 60 includes a partition plate body 16 and an electrical unit 40 connected to the upper portion of the partition plate body 16. The electrical unit 40 is disposed in the upper space of the machine room R2 and is mounted with various electrical components such as a control board that controls the air conditioner. The electrical unit 40 includes a first support plate (support plate) 41 extending above the partition plate body 16 and a second support plate 42 attached to the first support plate 41. Electrical components such as a substrate are disposed on the first support plate 41 and the second support plate 42. The first support plate 41 has substantially the same width as the partition plate main body 16, and is disposed on the upper portion of the partition plate main body 16, thereby cooperating with the partition plate 16 and the heat exchange chamber R <b> 1 and the machine chamber. It has a function of distinguishing from R2.

  Further, a heat sink 55 is provided integrally with the electrical unit 40 on the machine room R2 side of the first support plate 41. The heat sink 55 is provided to release heat generated by an electrical component that generates a relatively large amount of heat, such as an inverter circuit included in the electrical unit 40. The heat sink 44 has a configuration in which metal plates constituting a plurality of fins are arranged with a space left and right. A cover body 45 that covers the heat sink 44 is disposed on the heat exchange chamber R1 side of the first support plate 41. The cover body 45 is formed by bending a metal plate, and an opening 45 </ b> A through which cooling air for heat exchange with the fins of the heat sink 44 passes is formed in the upper and lower portions.

  The partition plate main body 16 is disposed between the heat exchange chamber R1 and the machine room R2, and separates the heat exchange chamber R1 and the machine chamber R2. The partition plate main body portion (partition plate main body) 16B, and the partition plate main body. The front side portion (end portion) 16C formed by bending the side edge portion on the front side of the portion 16B to the machine room R2 side, and the side edge portion on the back side of the partition plate body portion 16B on the machine room R2 side, the front portion A back surface portion (end portion) 16D formed by bending substantially parallel to 16C, and an upper surface portion (upper end surface) 16A formed by bending the upper edge portion of the partition plate main body portion 16B to the machine chamber R2 side. The partition plate body 16 is formed by bending a thin sheet metal as described above, thereby improving the rigidity (strength) of the partition plate body 16. The partition plate body 16 is erected on the bottom plate 12 and is fixed by screwing the back surface portion 16D to the heat exchanger 21.

  Next, the electrical unit 40 will be described. The electrical unit 40 is attached to the first support plate (support plate) 41 that extends above the partition plate body 16, the second support plate 42 that is attached to the first support plate 41, and the second support plate 42. A third support plate 43 to be provided. The third support plate 43 is provided with terminal blocks 46A and 46B having a plurality of connection terminals. A power line for supplying power to the outdoor unit 10 is connected to the terminal block 46A. A communication line that enables communication between the outdoor unit 10 and an indoor unit (not shown) is connected to the terminal block 46B. Although not shown, the third support plate 43 is attached with a plurality of clips for supporting these power supply lines or communication lines. In addition, an electrical unit cover 44 is provided in front of the second support plate 42. The electrical unit cover 44 serves to protect electrical components such as a substrate attached to the second support plate 42 when the front panel 14B is removed to perform maintenance of the machine room R2.

  On the back side of the electrical unit 40, as shown in FIG. 3, a magnet for switching on / off the power of the inverter 80, the blower 22 provided in the outdoor unit 10, or the drive motor of the compressor 31 is provided. The switch 90 is fixedly attached to the second support plate 42 with screws or the like. Although not shown, the outer plate 15 is provided with a ventilation opening for taking in outside air, and the reactor 80 and the magnet switch 90 are cooled by the air taken into the machine room R2 from the ventilation opening. . The air taken into the machine room R2 from the ventilation opening provided in the outer plate 15 flows into the heat exchange chamber R1 side from above the electrical unit 40 through the opening 45A of the cover body 45 covering the heat sink 44, It exhausts from the blower outlets 28 and 28 provided in the front surface of heat exchange chamber R1.

  As shown in FIG. 4, the magnet switch 90 attached to the back side of the second support plate 42 is provided with a plurality of connection terminals to which wiring is connected, and among the connection terminals, a predetermined connection terminal is the second. It is connected to a substrate such as a hybrid IC (HIC) attached to the front surface side of the support plate 42 via wiring. By the way, as described above, the magnet switch 90 is taken into the machine room R2 and cooled by the air flowing on the back side of the electrical unit 40. For this reason, air flows around the magnet switch 90 so as to be blown upward from below, and dust or dust may rise around the magnet switch 90 due to the air flow. In this embodiment, as shown in FIG. 5, the magnet switch 90 is surrounded by a dust protection cover (cover) 100 to prevent the dust and dirt from adhering to the contact points of the magnet switch 90 wiring.

  The dust protection cover 100 is attached not only to the magnet switch 90 but also to an electrical component to be electrically wired, such as the terminal blocks 46A and 46B included in the electrical unit 40, so that dust or It can be suitably used to prevent adhesion of dust. In the present embodiment, based on the configuration of the outdoor unit 10 of the present embodiment, the dust protection cover 100 is attached to the magnet switch 90 that is an electrical component disposed on the back side of the electrical unit 40 that is particularly affected by dust and dirt. The form which mounts will be described.

  FIG. 6 is a perspective view of the dust protection cover 100, and FIG. 7 is a development view of the cover member 101 that forms the dust protection cover 100. The dust protection cover 100 is formed, for example, in a semi-transparent or transparent resin in a substantially rectangular box shape, and has an upper surface 100A, a lower surface 100B, side surfaces 100C and 100D, and a back surface 100E. Further, the front side facing the back side 100E is opened, and a front side opening 100F is formed. The dust protection cover 100 is attached so as to house the magnet switch 90 inside the dust protection cover 100 and surround the magnet switch 90 through the front opening 100F.

  The upper surface 100A and the lower surface 100B of the dust protection cover 100 are connected to cable holes 104 and 104 through which cables (wiring) 91 (see FIG. 5) connected to the contacts of the magnet switch 90 are led, and the front opening 100F. The slits 105 </ b> A communicated with the cable holes 104 and substantially parallel to each other are provided. The slit 105A is provided to guide the cable 91 to the cable hole 104 when the dust protection cover 100 is attached to the magnet switch 90. The slit 105A has a slit width larger than the diameter of the cable introduced into the cable hole 104. It is formed narrow. Further, the size of the cable hole 104 is formed to be approximately the same as the diameter of the cable 91 led out from the cable hole 104.

  Further, the upper surface 100A and the lower surface 100B are provided with cuts 105B extending obliquely from the cable hole 104 toward the side surface in the vicinity toward the back surface 100E. Accordingly, the tongue portion 106 is provided on the upper surface 100A and the lower surface 100B by the slits 105A, the cable holes 104, and the cuts 105B formed symmetrically. The tongue 106 is formed such that the tip 106A is disposed on the rear side of the front opening 100F, and the tip 106A is disposed in front of the tip 106A when the dust protection cover 100 is attached to the magnet switch 90. A gap G is formed between 106A and the back surface of the second support plate 42, and the gap G allows the upper surface opening 106B and the lower surface opening 106C to communicate with the upper and lower spaces of the dust protection cover 100. Provided.

  As shown in FIG. 7, the dust protective cover 100 is formed by assembling a cover member 101 formed by cutting out a single plate-shaped resin material by a punch press or the like using a mold formed in a target shape in advance. Is done. Lines 107 are formed in advance in the cover member 101, and the cover member 101 can be easily folded along the lines 107, and the box-like dust shown in FIG. A protective cover 100 can be formed.

  The cover member 101 includes a back surface forming portion 101A that forms the back surface 100E of the dust protective cover 100, a side surface 100C of the dust protective cover 100, or a side surface forming portion 101B that forms the side surface 100D, and an upper surface 100A of the dust protective cover 100. Alternatively, an upper and lower surface forming portion 101C that forms the lower surface 100B is provided. When the cover member 101 is bent along the line 107, the upper and lower surface forming portions 101C abut against the inner surface of the side surface forming portion 101B, and together with the side surface forming portion 101B, the side surface 100C or the side surface 100D of the dust protection cover 100. And a connecting portion 108 that connects the upper and lower surface forming portion 101C and the side surface forming portion 101B.

  Further, the side surface forming portion 101B is provided with a fitting hole 103 formed in a substantially elliptical shape into which the claw portion 102 provided in the connecting portion 108 is fitted. The dust protection cover 100 is held in a substantially rectangular box shape by bending the cover member 101 and inserting the claw portion 102 into the insertion hole 103. That is, the claw portion 102 and the insertion hole 103 are: It is used as a holder that holds the dust protection cover 100 in a substantially rectangular box shape.

  The claw portion 102 includes a neck portion 102A that fits into the insertion hole 103, and the major axis L2 of the insertion hole 103 and the width L1 of the neck portion 102A are formed to have substantially the same dimensions. The claw portion 102 includes hook portions 102B and 102B that protrude toward both outer sides of the neck portion 102A. When the claw portion 102 is inserted into the insertion hole 103 to connect the upper and lower surface forming portion 101C and the side surface forming portion 101B, the connecting portion 108 is disposed inside the side surface forming portion 101B, and the claw portion 102 is inserted. Through the hole 103, the claw portion 102 is slightly bent and pulled out from the inside to the outside of the side surface forming portion 101B. As a result, the hooking portions 102B and 102B are locked to the outside of the side surface forming portion 101B while being hooked in the fitting hole 103, and the neck portion 102A is fitted into the fitting hole 103. As a result, the claw portion 102 is not easily detached from the insertion hole 103, and the upper and lower surface forming portions 101C and the side surface forming portion 101B are connected to each other without using a fixing tool such as a screw to protect the dust. The cover 100 can be formed in a box shape.

  In the present embodiment, the insertion hole 103 is vertically long, and is arranged in a straight line on the side surface forming part 101 </ b> B in a straight line, and the claw part 102 is disposed through the insertion hole 103 substantially parallel to the mounting direction of the dust protective cover 100. However, the present invention is not limited to this, and the insertion hole 103 is formed in a horizontally long shape, the upper and lower claw portions 102 face each other, and are pulled out through the insertion hole 103 at a substantially right angle with the attaching direction of the dust protection cover 100. It is good also as a structure to be able to do.

  Next, a mounting method when the dust protection cover 100 is mounted so as to surround the magnet switch 90 mounted on the back side of the second support plate 42 as shown in FIG. 5 will be described. As shown in FIG. 6, the dust protection cover 100 is formed in a substantially rectangular box shape having the front opening 100F on the front side by assembling the cover member 101. The dust protection cover 100 is attached to the dust protection cover 100 through the front opening 100F so as to cover the magnet switch 90 from the magnet switch 90 side shown in FIG. 4, and accommodates the magnet switch 90 inside. . Cables (wirings) 91 are connected to the magnet switch 90 at predetermined contact points. These cables 91 are guided by the slits 105 </ b> A when the dust protection cover 100 is attached to the magnet switch 90 and are inserted into the cable holes 104. be introduced.

  Since the upper surface 100A and the lower surface 100B of the dust protection cover 100 are each provided with a notch 105B, when the dust protection cover 100 is mounted, the side surfaces 100C and 100D are pushed outward so that the dust protection cover 100 is opened. The slit width of the slit 105A can be expanded by being elastically deformed, and even if the cable 91 is thick or a plurality of cables 91 are gathered, the cable 91 can be easily connected to the cable hole via the slit 105A. 104 can be derived. Further, when the cable 91 is introduced into the cable hole 104 through the slit 105A, the tongue 106 positioned on the side of the slit 105A is pushed up to the outside of the dust protection cover 100 or pushed down to the inside of the dust protection cover 100. Therefore, the slit width of the slit 105A can be further widened and the cable 91 can be easily introduced into the cable hole 104 through the slit 105A. Further, since the tongue portion 106 is restored to the original position after the cable 91 is introduced into the cable hole 104, the tongue portion 106 causes dust and dirt from the upper surface 100A and the lower surface 100B of the dust protection cover 100 to be restored. Can be prevented and dust can be prevented from adhering to the contacts.

  Further, as described above, the slit width of the slit 105A is formed narrower than the diameter of the cable introduced into the cable hole 104, so that the cable 91 is introduced into the cable hole 104 and the dust protection cover 100 is installed. After restoring from the elastic deformation, the cable 91 does not come off via the slit 105A, and the dust protection cover 100 can be supported stably without being fixed using a fastener such as a screw. Furthermore, since the size of the cable hole 104 is substantially the same as the diameter of the cable 91 led out from the cable hole 104, dust and dust enter the dust protection cover 100 from the cable hole 104. It is possible to prevent dust and dust from adhering to the contacts of the magnet switch 90.

  In this way, since the cables 91 connected to the contacts of the magnet switch 90 are led out from the cable holes 104 provided on each of the upper surface 100A and the lower surface 100B of the dust protection cover 100, dust protection is performed. The cover 100 is supported by the cable 91 and can maintain a desired posture. Therefore, the dust protection cover 100 does not need to be fixed to the back surface of the second support plate 42 using a fixing tool such as a screw, and maintains a desired posture in a detachable manner so as to cover the periphery of the magnet switch 90. Therefore, the workability at the time of attaching and detaching the dust protection cover 100 can be improved. Further, since the dust protection cover 100 is formed symmetrically on the top and bottom and on the left and right, the dust protection cover 100 can be mounted without worrying about the mounting direction, and workability can be improved.

  By the way, as shown in FIG. 4, the magnet switch 90 is provided with contacts to which wiring is connected in two stages of an upper stage 90A and a lower stage 90B. When the dust protection cover 100 is attached to the magnet switch 90, the wiring connected to the contact provided in the upper stage 90A is led out from the cable hole 104 through the slit 105A as described above. When the outdoor unit 10 has a high output, etc., the cable 91 is connected not only to the upper stage 90A but also to the contacts provided to the lower stage 90B, but the cable 91 connected to the contacts provided to the lower stage 90B is Although not shown, the front surface of the second support plate 42 is drawn upward or downward from a gap G formed between the tip 106A of the tongue 106 and the back surface of the second support plate 42. Connected to the board attached to the side. Moreover, the upper part or the lower part of the contact provided in the lower stage 90B is covered with the tongue 106, and dust and dirt can be prevented from adhering to these contacts.

  Further, the heat generated by the magnet switch 90 can be discharged out of the dust protection cover 100 through a gap formed between the front end portion 106A of the tongue portion 106 and the back surface of the second support plate 42. Furthermore, air that is taken into the machine room R2 from a ventilation opening (not shown) provided in the outer plate 15 of the unit case 11 and flows so that the back side of the electrical unit 40 is blown up from below is protected by a dust protective cover. It can be attracted into the dust protection cover 100 via the upper surface opening 106B communicating with the upper space and the lower space of 100 and the lower surface opening 106C. Accordingly, it is possible to prevent dust and dirt from adhering to the contact to which the wiring of the magnet switch 90 is connected by the dust protection cover 100, and to efficiently dissipate the heat generated by the magnet switch 90.

  As described above, according to the embodiment to which the present invention is applied, the dust protection cover (cover) 100 is provided from the magnet switch 90 side to the magnet switch (electric part) 90 fixed to the second support plate 42. 90, a cable hole (hole) 104 from which a cable 91 connected to the magnet switch 90 is led out, a slit 105A for guiding the cable 91 to the hole 104 when attached to the magnet switch 90, The tongue (part) 106 on the side of the slit 105A is elastically deformed when the cable 91 is introduced into the hole 104 through the slit 105A, and the tongue 106 is restored after the cable 91 is introduced into the hole 104. By doing so, it is supported by the cable 91 led out from the hole 104. As a result, the dust protection cover 100 can be supported by the cable 91 led out from the cable hole 104 without being fixed by using a fastener such as a screw, so that it can be easily attached and detached, and maintainability is improved. Can be improved. Further, when the cable 91 is guided to the cable hole 104 through the slit 105A, the tongue portion 106 on the side of the slit 105A is elastically deformed, so that the cable 91 can be easily introduced into the cable hole 104. Further, since the tongue portion 106 is restored to the original position after the cable 91 is introduced from the cable hole 104, the tongue portion 106 is introduced into the interior from the upper and lower surfaces 100A and 100B of the dust protective cover 100 on which the tongue portion 106 is formed. Dust and dust can be prevented from entering.

  Further, according to the embodiment to which the present invention is applied, the slit width of the slit 105A is formed narrower than the diameter of the cable 91, so that the cable 91 is introduced into the cable hole 104 and the dust protective cover 100 is elastically deformed. After being restored from the above, the cable 91 is not detached via the slit 105A, and the dust protection cover 100 can be stably supported without being fixed using a fastener such as a screw.

  Further, according to the embodiment to which the present invention is applied, the dust protection cover 100 includes the notch 105B extending from the cable hole 104 on the opposite side of the slit 105A. Since the dust protective cover 100 can be deformed by pushing it outward, the slit width of the slit 105A can be widened, so that the cable 91 can be easily guided to the slit 105A and introduced into the cable hole 104. Since the protective cover 100 can be easily attached and detached, the maintainability can be improved.

  According to the embodiment to which the present invention is applied, the dust protection cover 100 is formed by bending a cover member 101 made of a single plate-like resin material into a substantially rectangular box shape, and the dust protection cover is formed on the cover member 101. A holder that holds 100 in a substantially rectangular box shape is integrally formed, and the holder includes a claw portion 102 and a fitting hole 103 into which the claw portion 102 is fitted, and the claw portion 102 is pulled into the fitting hole 103. Because the hooking portion 102B to be hung is provided. Thereby, the cover member 101 can be easily formed by cutting out a single plate-like resin material into a shape aimed at in advance. Further, since the cover member 101 is made of a resin material, it can be easily folded by hand without using a tool or the like. In addition, since the claw portion 102 and the fitting hole 103 constituting the holder for holding the dust protection cover 100 in a substantially rectangular box shape are integrally formed on the cover member 101, the dust protection cover 100 is made of an adhesive or the like. It can be easily manufactured without retaining the shape. Moreover, since the cover member 101 is formed from the resin material, it is lightweight. Further, since the dust protection cover 100 is formed of a resin material, the dust protection cover 100 can be easily elastically deformed by pushing the side surface outward by hand, and workability at the time of detachment is improved. Further, even when the dust protection cover 100 is attached, even if the dust protection cover 100 is elastically deformed, the hook portion 102B is caught in the insertion hole 103. Therefore, maintainability is improved.

  Further, according to the embodiment to which the present invention is applied, the dust protection cover 100 is formed so that the upper and lower surfaces 100A and 100B and the left and right side surfaces 100C and 100D are symmetrical, respectively. It can be attached without worrying about the direction of the top and bottom or the left and right, there is no mistake in attaching the dust protection cover 100, and the workability can be improved.

  Moreover, according to the embodiment to which the present invention is applied, the partition plate 16 extending vertically dividing the inside of the unit case 11 into the heat exchange chamber R1 and the machine room R2 is provided, and the heat exchanger 21 is provided in the heat exchange chamber R1. In the outdoor unit 10 of the air conditioner in which the blower 22 is accommodated and the compressor 31 and the electrical unit 40 are accommodated in the machine room R2, a ventilation opening is formed in the outer plate 15 of the unit case 11, and the air introduced from the ventilation opening is supplied. A second support plate 42 that flows to the back side of the electrical unit 40 and is parallel to the air flow is provided on the electrical unit 40, and the magnet switch 90 that protrudes from the second support plate 42 onto the air flow path is on the magnet switch 90 side. Is installed so as to cover the magnet switch 90 and the cable hole 104 through which the cable 91 connected to the magnet switch 90 is led out, and the magnet A slit 105A for guiding the cable 91 to the cable hole 104 when the switch 91 is mounted. When the cable 91 is introduced into the cable hole 104 via the slit 105A, the tongue 106 on the side of the slit 105A is elastically deformed. After the introduction of the cable 91 into the cable hole 104, the dust protective cover 100 supported by the cable 91 led out from the cable hole 104 is provided by restoring the tongue 106. As a result, even if dust or dirt collects around the electrical unit 40 due to the flow of air flowing inside the machine room R2, it is possible to prevent the dust and dirt from adhering to the contacts of the magnet switch 90. In addition, since the dust protection cover 100 can be easily attached and detached during maintenance of the magnet switch 90, maintenance is improved.

  As mentioned above, although this invention was demonstrated based on embodiment, this invention is not limited to this. In the present embodiment, the dust protection cover 100 surrounds the magnet switch 90 attached to the back side of the second support plate 42, and prevents dust and dirt from adhering to the contacts of the magnet switch 90. In addition to this, the dust protection cover 100 includes, for example, a terminal block 46A provided on the front side of the electrical unit 40, or a terminal block 46B to which a communication line is connected, in addition to the magnet switch 90. The terminal block 46A, 46B may be configured to be covered so as to be protected from dust and dirt.

R1 Heat exchange chamber R2 Machine room 10 Outdoor unit 11 Unit case (housing)
12 Bottom plate 12
15 Outer Plate 21 Heat Exchanger 22 Blower 31 Compressor 40 Electrical Unit 42 Second Support Plate (Support Plate)
90 Magnet switch (Electric parts)
91 Cable (wiring)
100 Dust protection cover (cover)
101 Cover member (member)
102 Claw part 102 Neck part 102B Hook part 103 Insertion hole 104 Cable hole (hole)
105A slit 105B notch 106 tongue (part)

Claims (6)

  A hole which is fixed to the support plate and is electrically attached to the electric component to be covered so as to cover the electric component from the electric component side, and a wiring to be connected to the electric component is led out, and is attached to the electric component A slit that guides the wiring into the hole, and when the wiring is introduced into the hole through the slit, a part of the side of the slit is elastically deformed, and after the wiring is introduced into the hole, The cover is supported by the wiring led out from the hole when the part is restored.   The cover according to claim 1, wherein a slit width of the slit is narrower than a diameter of the wiring.   The said cover is provided with the notch extended from the said hole on the other side of the said slit, The cover of Claim 1 or 2 characterized by the above-mentioned.   The cover is formed by bending a single plate-like resin member into a substantially rectangular box shape, and a holding tool for holding the cover in a substantially rectangular box shape is formed integrally with the member. The cover according to any one of claims 1 to 3, wherein the cover includes a hook portion and a hook hole into which the claw portion is fitted, and the hook portion is provided on the hook portion.   The cover according to any one of claims 1 to 4, wherein the upper and lower surfaces and the left and right surfaces of the cover are formed symmetrically. An air conditioner having a vertically extending partition that divides the housing into a heat exchange chamber and a machine room, a heat exchanger and a blower accommodated in the heat exchange chamber, and a compressor and an electrical unit accommodated in the machine chamber In the outdoor unit of the device,
A ventilation hole is formed in the outer plate of the housing, air introduced from the ventilation hole is caused to flow to the back side of the electrical unit, and a support plate parallel to the air flow is provided on the electrical unit, and the support plate And a hole through which the wiring connected to the electrical component is led out and attached to the electrical component to be electrically wired from the side of the electrical component. A slit that guides the wiring into the hole when mounted on a component, and when the wiring is introduced into the hole through the slit, a part of the side of the slit is elastically deformed, and the wiring to the hole The outdoor unit of the air conditioner is provided with a cover that is supported by the wiring led out from the hole when the part is restored after the introduction.

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