JP2010203720A - Outdoor unit of air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an outdoor unit of an air conditioner capable of combining superior ventilation performance to a heat exchanger and the proper protection of the heat exchanger while suppressing product cost. <P>SOLUTION: The outdoor unit 1 of the air conditioner has the heat exchanger 2 having a plurality of fins 2a and a heat transfer tube 2b penetrating the plurality of fins 2a, a casing 3 receiving the heat exchanger 2, and having an intake opening 3a through which air flows into the heat exchanger 2, and a protective net 10 opposed to the intake opening 3a. The protective net 10 is provided with a slide bridge 15 extending toward the inside of the casing 3 and slidable in a state of being supported by the heat exchanger 2. A distance between the protective net 10 and the intake opening 3a is changeable by drawing out the slide bridge 15 from the inside of the casing 3 while being kept into contact with the heat exchanger 2. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an outdoor unit of an air conditioner including a heat exchanger that performs heat exchange between a refrigerant and outside air.

  An outdoor unit of an air conditioner has a heat exchanger having a plurality of fins that improve the heat exchange rate of outside air and refrigerant, and a heat transfer pipe that passes through these fins and is supplied with refrigerant in the vicinity of the opening of the casing inside the casing. It is housed and sucks outside air from the opening of the casing, and heat exchange between the outside air and the refrigerant is performed by a heat exchanger to heat or cool the refrigerant.

  In the outdoor unit of the conventional air conditioner exemplified in Patent Document 1, the heat exchanger is exposed from the opening of the casing, and there is a possibility that an object may come into contact with the heat exchanger, so that the heat exchanger is protected. In order to do this, a protective mesh is provided to cover the opening of the casing.

JP 2006-125712 A

  However, in order to ensure the air permeability to the heat exchanger, the conventional protective mesh is usually configured to have a large mesh (that is, a high opening ratio) and is disposed in the vicinity of the opening. Therefore, the heat exchanger could not be sufficiently protected. In order to sufficiently protect the heat exchanger, it is necessary to make the mesh small (that is, the aperture ratio is low), but this deteriorates the air permeability to the heat exchanger and impairs the performance of the heat exchanger. There is a problem.

  Therefore, the inventor of the present invention has conceived that when the protective net is separated from the opening of the casing by a predetermined distance, both good air permeability and appropriate protection of the heat exchanger can be achieved. However, if the protective net is fixed to the casing in a separated state, the overall size of the outdoor unit increases, resulting in an increase in transportation costs and packaging costs.

  An object of the present invention is to provide an air conditioner that achieves good air permeability to a heat exchanger and appropriate protection of the heat exchanger while suppressing the product cost based on such a new viewpoint and problem. The purpose is to provide outdoor units.

In order to achieve this object, the present invention takes the following measures.
That is, the outdoor unit of the air conditioner according to the first aspect of the present invention includes a heat exchanger having a plurality of fins and a heat transfer tube penetrating the plurality of fins, the heat exchanger, and the heat exchanger. A casing having an opening through which air flows in, and a protective mesh facing the opening, the protective mesh being formed to extend toward the inside of the casing, and to the heat transfer tube A slide bar that is slidable in a supported state is provided, and the distance between the protective mesh and the opening can be changed by pulling out the slide bar from the inside of the casing while being in contact with the heat transfer tube. It is characterized by.

In this outdoor unit of the air conditioner, a slide bar provided on the protection net is formed extending toward the inside of the casing, and the slide bar is configured to be slidable while being supported by the heat transfer tube. Without adding a simple slide mechanism, the heat transfer tube can be effectively used as a part of the slide mechanism to reduce the product cost.
In addition, because the slide bar is pulled out from the casing while being in contact with the heat transfer tube, the distance between the protective mesh and the opening can be changed, so that even if only the finger passes through the mesh of the protective mesh, for example, heat exchange The distance between the protective mesh and the opening can be secured so that it does not reach the heat exchanger, avoiding deterioration of the performance of the heat exchanger by reducing the opening ratio of the protective mesh, and heat exchangers such as fingers It is possible to ensure both safety by preventing contact with the heat exchanger and appropriate protection of the heat exchanger.

  In the outdoor unit for an air conditioner according to a second aspect of the invention, the slide bar is inserted into a gap between the fins, and the slide bar is configured so that the slide direction is guided by the fin.

  In this outdoor unit of the air conditioner, the fins of the heat exchanger guide the sliding direction of the slide bar, so that the protection net can be prevented from being shaken when being pulled out, and the fins are effectively used as a guide mechanism for the slide, and the manufacturing cost is reduced. Can be suppressed.

  An outdoor unit of an air conditioner according to a third aspect of the present invention is such that, at the tip of the slide bar, when the protective mesh is pulled out, it engages with a part of the heat exchanger, and the protective mesh opens to the opening. There is provided a restricting portion for restricting the separation from the predetermined distance by a predetermined distance or more.

  In the outdoor unit of this air conditioner, when the protective mesh is pulled out, the restricting portion engages with a part of the heat exchanger, and the protective mesh is restricted from being separated from the opening by a predetermined distance or more. When the drawer is pulled out, it is possible to prevent the slide bar from unexpectedly coming out of the heat exchanger.

  In the outdoor unit for an air conditioner according to a fourth aspect of the invention, the restricting portion restricts the engaging portion with the heat transfer tube when the protection net is pulled out.

  In this outdoor unit of an air conditioner, a configuration that regulates the separation of the protective mesh can be realized by using a heat transfer tube that is stronger than the fins.

  In the outdoor unit of an air conditioner according to a fifth aspect of the present invention, a fitting fixing portion that is fitted into the heat transfer tube is provided at a tip portion of the slide bar to fix the protection net and the heat transfer tube. Yes.

  In the outdoor unit of this air conditioner, the fitting fixing portion is fitted into the heat transfer pipe when the protection net is pulled out, so that the protection net and the heat transfer pipe can be fixed by a simple operation.

  In the outdoor unit for an air conditioner according to a sixth aspect of the present invention, a plurality of the slide bars are provided on the protective net.

  In the outdoor unit of this air conditioner, the force is transmitted to the heat exchanger through the slide bar, but by providing a plurality of slide bars, the force applied to the heat exchanger is dispersed and a large force is applied to the local area of the heat exchanger. Can be reduced and the heat exchanger can be prevented from being deformed.

  In the outdoor unit for an air conditioner according to a seventh aspect of the present invention, the opening is provided on a side surface of the casing, and the slide bar is provided above a central portion in the vertical direction of the protection net.

  In this outdoor unit of the air conditioner, gravity is applied downward to the protective mesh, so if a slide bar is provided above the upper central portion of the protective mesh, smooth sliding is realized while preventing the protective mesh from overturning. be able to. Furthermore, when fixing a protection net | network and a heat exchanger, it can fix more stably.

  In the outdoor unit for an air conditioner according to an eighth aspect of the present invention, the slide bar is further provided below the central part in the vertical direction of the protective mesh.

  In this outdoor unit of an air conditioner, if a slide bar is further provided below the central part in the vertical direction of the protective mesh, a more stable and smooth slide can be realized. Furthermore, when fixing a protection net | network and a heat exchanger, it can fix more reliably.

  In the outdoor unit for an air conditioner according to a ninth aspect of the present invention, the protective net is provided with a side net provided at an end of the protective net and rotatably provided about an axis along the end. The side mesh can be stacked on the protective mesh, and is fixed by extending from the end of the protective mesh toward the opening in a state where the protective mesh is separated from the opening by a predetermined distance. The

In the outdoor unit of this air conditioner, the side net is fixed to extend from the end of the protective net toward the opening in a state where the protective net is separated from the opening by a predetermined distance. While protecting a protective net appropriately, safety by preventing a finger or the like from contacting a heat exchanger can be ensured.
In addition, since the side net can be stacked on the protective net, a space for storing the side net inside the casing can be saved.

  An outdoor unit of an air conditioner according to a tenth aspect of the invention is configured such that the side surface net is fixed so as to cover from the end of the protective mesh to the edge of the opening in a state where the protective mesh is separated from the opening by a predetermined distance. Is done.

  In the outdoor unit of this air conditioner, the side net is fixed so as to cover from the end of the protective net to the edge of the opening of the casing, so that the heat exchanger is appropriately protected by the side net and the protective net. Can be realized.

  In the outdoor unit for an air conditioner according to an eleventh aspect of the invention, the opening ratio of the side network is set smaller than the opening ratio of the protective mesh.

  In this outdoor unit of the air conditioner, the side mesh is located closer to the casing opening than the protective mesh, so if the opening ratio of the protective mesh and the side mesh is the same, the finger that has passed the side mesh from the protective mesh, etc. Since it is easy to contact the heat exchanger, the opening ratio of the side mesh is made smaller than the opening ratio of the protection mesh, and the side mesh reliably prevents the finger etc. from contacting the heat exchanger. It is possible to achieve both a configuration for appropriately protecting and a configuration for ensuring the performance of the heat exchanger by the protection net.

  Since the present invention has the configuration described above, the following effects can be obtained.

In the first invention, a slide bar provided on the protection net is formed to extend toward the inside of the casing, and the slide bar is configured to be slidable while being supported by the heat transfer tube. Without adding, it is possible to effectively use the heat transfer tube as a part of the slide mechanism to reduce the product cost.
In addition, because the slide bar is pulled out from the inside of the casing while being in contact with the heat transfer tube, the distance between the protective mesh and the opening can be changed. For example, even if only the finger passes through the mesh of the protective mesh, heat exchange is possible. The distance between the protective mesh and the opening can be secured so that it does not reach the heat exchanger, avoiding deterioration of the performance of the heat exchanger by reducing the opening ratio of the protective mesh, and heat exchangers such as fingers It is possible to ensure both safety by preventing contact with the heat exchanger and appropriate protection of the heat exchanger.

  In the second invention, since the fins of the heat exchanger guide the sliding direction of the slide bar, it is possible to prevent the protective net from being shaken when being pulled out, and to effectively use the fins as a slide guide mechanism to reduce the manufacturing cost. be able to.

  In the third invention, when the protective mesh is pulled out, the restricting portion engages with a part of the heat exchanger and restricts the protective mesh from being separated from the opening by a predetermined distance or more. It is possible to prevent the slide bar from unexpectedly falling out of the heat exchanger.

  In 4th invention, the structure which controls separation of a protection net | network can be implement | achieved using the heat exchanger tube whose intensity | strength is stronger than a fin.

  In the fifth invention, since the fitting fixing portion is fitted into the heat transfer pipe when the protection net is pulled out, the protection net and the heat transfer pipe can be fixed by a simple operation.

  In the sixth invention, the force is transmitted to the heat exchanger through the slide bar, but by providing a plurality of slide bars, the force applied to the heat exchanger is dispersed, and a large force is transmitted to the local part of the heat exchanger. It is possible to reduce deformation of the heat exchanger.

  In the seventh aspect of the invention, since the gravity is applied downward to the protective mesh, if a slide bar is provided above the upper central portion of the protective mesh, smooth sliding can be realized while preventing the protective mesh from overturning. . Furthermore, when fixing a protection net | network and a heat exchanger, it can fix more stably.

  In the eighth invention, if a slide bar is further provided below the central part in the vertical direction of the protective mesh, a more stable and smooth slide can be realized. Furthermore, when fixing a protection net | network and a heat exchanger, it can fix more reliably.

In the ninth aspect of the invention, the side mesh extends from the end of the protective mesh toward the opening in a state where the protective mesh is spaced from the opening by a predetermined distance. Can be secured, and safety can be ensured by preventing the finger or the like from contacting the heat exchanger.
In addition, since the side net can be stacked on the protective net, a space for storing the side net inside the casing can be saved.

  In the tenth aspect of the invention, the side net is fixed so as to cover from the end of the protective net to the edge of the opening of the casing, thereby realizing a configuration in which the heat exchanger is appropriately protected by the side net and the protective net. Can do.

  In the eleventh aspect of the invention, since the side net is located closer to the casing opening than the protective net, if the open area ratio of the protective net and the side net is the same, a finger or the like that has passed through the side net from the protective net exchanges heat. Since the opening ratio of the side mesh is smaller than the opening ratio of the protective mesh, the side mesh reliably prevents fingers from coming into contact with the heat exchanger and protects the heat exchanger appropriately. It is possible to achieve both a configuration that secures the performance of the heat exchanger with a protective net.

The schematic perspective view of the outdoor unit of the air conditioner which concerns on one Embodiment of this invention. Sectional drawing of the AA location of the outdoor unit shown in FIG. Explanatory drawing which shows the state which has arrange | positioned the protection net | network and side net | network shown in FIG. 2 on substantially the same plane. FIG. 3 is a schematic cross-sectional view showing the operation of a slide bar of the protection net shown in FIG. 2. The perspective view which shows the latching | locking part of the protection net | network and heat exchanger shown in FIG. The perspective view showing the process of rearranging from the state which laminated and arrange | positioned the protection net | network and side net | network shown in FIG. 2 to a box shape. FIG. 6A is a perspective view showing a state in which a protective net and a side net are stacked. FIG. 6B is a perspective view showing a protective net and a side net that are being rearranged from a stacked arrangement to a box shape. It is a perspective view showing the process of rearranging the protection net | network and side net | network shown in FIG. FIG. 8A is a schematic cross-sectional view showing a slide bar according to another embodiment. FIG. 8B is a schematic cross-sectional view showing a slide bar according to still another embodiment. Furthermore, the schematic sectional drawing which shows the arrangement | positioning state of the protection net | network and slide bar which concern on another embodiment.

  Hereinafter, an outdoor unit of an air conditioner according to the present invention will be described with reference to the drawings.

  The outdoor unit 1 of the air conditioner according to the present embodiment is disposed outdoors and constitutes an air conditioner that adjusts the temperature or humidity in the room together with the indoor unit disposed indoors. An outdoor unit 1 of an air conditioner includes a substantially rectangular parallelepiped casing 3 and a heat exchanger 2 that is housed in the casing 3 and performs heat exchange between outside air and refrigerant. The heat exchanger 2 has a plurality of fins 2a and a heat transfer tube 2b through which the refrigerant flows through the fins 2a, and a refrigerant pipe (not shown) between the heat exchanger (not shown) of the indoor unit. It is connected, and it is comprised so that a refrigerant | coolant can circulate between both heat exchangers of an outdoor unit and an indoor unit.

  FIG. 2 is a schematic cross-sectional view in the front-rear and vertical direction of the outdoor unit 1 of the present embodiment. As shown in FIG. 2, an intake opening 3 a that opens rearward is formed on the rear side surface, which is one side surface of the casing 3. The heat exchanger 2 is arranged inside the casing 3 in the vicinity of the intake opening 3a in a standing state so as to close the intake opening 3a, and a part thereof is exposed from the intake opening 3a. In addition, an exhaust opening 3 b that opens toward the front is formed on the front side that is the opposite side facing the rear side of the casing 3. Inside the casing 3 between the heat exchanger 2 and the exhaust opening 3b, a heat exchanger fan 4 is disposed, and when the heat exchanger fan 4 is driven (rotated), the heat exchanger 2 is Then, outside air is sucked in from the intake opening 3a, heat exchange between the refrigerant and the flowing-in outside air is performed in the heat exchanger 2, and the outside air sucked in from the exhaust opening 3b is discharged.

  On the rear side of the heat exchanger 2, a substantially flat protective net 10 facing the heat exchanger 2 and the intake opening 3a is arranged in an upright state. A slide bar 15 extending toward the inside of the casing 3 is provided at the upper corner of the substantially flat surface of the protective net 10. The slide bar 15 is configured to be slidable with the front-rear direction as the slide direction while being supported by the heat exchanger 2 (particularly, the top of the heat transfer tube 2b disposed along the horizontal direction). In the example shown in FIG. 2A, the protective mesh 10 and the heat exchanger 2 are separated in the front-rear direction by a distance Ds. In the example shown in FIG. 2B, the protective mesh 10 and the heat exchanger are separated. 2 is separated in the front-rear direction by a distance Dl longer than the distance Ds. Thus, by sliding the slide bar in contact with the heat exchanger 2, the distance between the protective mesh 10 and the heat exchanger 2 (also referred to as the distance between the protective mesh 10 and the intake opening 3a) is changed. It is configured to be possible.

  As shown in FIG. 3, the protective mesh 10 is a substantially flat surface facing the heat exchanger 2 and the intake opening 3 a, and is provided with three pieces provided at the upper, right and left ends of the protective mesh 10. It has a substantially flat side face network 12 and two slide bars 15 provided at the upper corner of the protective net 10. The end portions of the protective mesh 10 and the end portions of the side nets 12 are connected by the hinges 13 so as to be rotatable about the direction along each end of the protective mesh 10 as the central axis. By doing so, the protection net 10 and the side net 12 can be rearranged into a stacked state, or the protective net 10 and the side net 12 can be rearranged into a box shape orthogonal to each other.

  When the protective mesh 10 and the side mesh 12 are rearranged into a box shape, the mesh size of the side mesh 12 is set smaller at the end of the heat exchanger 2 and the intake opening 3a side than at the protective mesh 10 side. Has been. Specifically, it is preferably about 10 mm to 15 mm so that a finger or the like cannot pass through. The mesh of the protective mesh 10 and the mesh on the protective mesh 10 side of the side mesh 12 are made larger than the above, and the air permeability to the heat exchanger 2 is ensured.

  In addition, although the side net | network 12 has made the one part mesh smaller than the mesh of another part, you may make the magnitude | size of the mesh | network of the whole side net | network 12 smaller than the mesh size of the protection net | network 10. . Further, in order to reduce the mesh of the side net 12, a plate such as a sheet metal may be attached to reduce the aperture ratio. In addition, as shown in FIG. 3, when the protective mesh 10 and the side mesh 12 are rearranged into a box shape, the protective mesh 10 is engaged with the casing 3 at the lower corner of the side mesh 12 adjacent to the casing 3. A supporting portion 16 for supporting is provided.

  As shown in FIGS. 3 and 7, when the protective mesh 10 and the side mesh 12 are rearranged into a box shape, the side mesh 12 is fitted to the slide rail 15 at the corner of the side mesh 12 adjacent to the slide rail 15. A C-shaped side net fixing part 14 for fixing 12 is formed. The C-shape of the side mesh fixing portion 14 is directed toward the direction of rotation toward the slide bar 15 (forward in this embodiment) about the rotation axis of the hinge portion 13 (the direction along the end of the protective mesh 10). Since it is open, the side net fixing portion 14 is fitted and fixed to the slide bar 15 by the operation of rotating the side net 12 toward the slide bar 15. Therefore, the side net 12 can be fixed integrally with the operation of rearranging the protective net 10 and the side net 12 into a box shape.

  As shown in FIG. 4, a substantially U-shaped restricting portion 15 a that opens toward the heat transfer tube 2 b is provided at the tip of the slide bar 15. The restricting portion 15a is formed in a substantially U shape by bending the tip of the slide bar 15 in contact with the top of the heat transfer tube 2b downward and further bending the heat transfer tube 2b toward the rear. . The bent portion of the restricting portion 15a is set so that the curvature thereof substantially matches the curvature of the heat transfer tube 2b so that the entire bent portion comes into contact with the heat transfer tube 2b when sliding. Thus, when being pulled out from the casing 3, the restricting portion 15a is engaged with the heat transfer tube 2b, and the protection net 10 is restricted from being separated from the intake opening 3a by a predetermined distance or more. In addition, since the curvature of the curved portion of the restricting portion 15a and the curvature of the heat transfer tube 2b are set to substantially coincide with each other, both can be more reliably brought into contact and the separation can be restricted.

  Further, the distance between the restriction portion 15a and the slide bar 15 is set to be shorter than the diameter of the heat transfer tube 2b, so that the protection net 10 is slid into the heat transfer tube 2b when pulled out from the casing 3. A fitting and fixing portion 15b is formed. Since the distance from the slide bar 15 is set to be shorter than the diameter of the heat transfer tube 2b, after the heat transfer tube 2b and the fitting fixing portion 15b are fitted, this fitting is prevented from being detached, and the heat transfer tube 2b and the slide bar 15 are securely fixed.

  As shown in FIG. 5, the heat exchanger 2 is configured such that the wide plate surface of each plate-like fin 2 a is arranged in parallel in the left-right direction with the plurality of fins 2 a standing along the front-rear direction. 2a is separated at a predetermined interval. The heat transfer tube 2b is disposed through the plurality of fins 2a in the horizontal direction. The slide bar 15 is inserted into a gap between the fins 2a formed along the front-rear direction, which is the slide direction, and is in contact with the top of the heat transfer tube 2b. In this way, the wide plate surface of the plate-like fin 2a is arranged along the slide direction, and the slide bar 15 is inserted into the gap between the fins 2a, so that the fin 2a guides the slide direction of the slide bar 15. It is configured.

Next, the operation of the protection network 10 will be described with reference to FIGS.
When the outdoor unit 1 is transported or packed, as shown in FIG. 6A, the protective net 10 is in a state where the three side nets 12 are stacked on the rear side of the protective net 10 on the side opposite to the slide bar, The slide bar 15 is accommodated in the casing 3 so that the protective mesh 10 and the heat exchanger 2 are brought close to each other so that the distance Ds therebetween, and the internal space of the casing 3 that accommodates the side surface mesh 12 is omitted.

  Next, when the transportation and installation of the outdoor unit 1 are completed, the slide bar 15 is pulled out from the inside of the casing 3 in a state where the protective net 10 and the side net 12 are stacked, and the slide bar 15 The fitting fixing portion 15b is fitted into the heat transfer tube 2b, and the regulating portion 15a of the slide bar 15 and the heat transfer tube 2b are locked to regulate the separation of the protection mesh 10 to the rear, and the protection mesh 10 and the heat exchanger 2 is fixed, and a predetermined distance Dl is set between the two.

  Next, as shown in FIG. 6 (b), the side net 12 that is laminated on the rear side of the protective net 10 on the side opposite to the slide bar 15 is placed on the front side that is on the side of the slide bar 15 around each hinge portion 13. The protective net 10 and the three side nets 12 are combined into a substantially box-shaped protective net 10.

  Next, as shown in FIG. 7, the C-shaped side net fixing part 14 provided at the corner of the side net 12 is fitted into the slide bar 15 to fix the protective net 10 and the slide bar 15. In this way, the protection net 10 can be installed with a simple operation. The side net 12 extends from the end of the protective mesh 10 toward the intake opening 3a and is fixed in a state where the protective net 10 is separated from the intake opening 3a by a predetermined distance Dl. It covers up to the edge of the intake opening 3a.

  As described above, the outdoor unit 1 of the air conditioner according to the present embodiment houses the heat exchanger 2 having the plurality of fins 2a and the heat transfer tubes 2b penetrating the plurality of fins 2a, and the heat exchanger 2, In addition, the protective net 10 includes a casing 3 having an opening (intake opening 3 a) through which air flows into the heat exchanger 2, and a protection net 10 facing the opening (intake opening 3 a). A slide bar 15 is formed extending toward the inside of the casing 3 and slidable in a state of being supported by the heat transfer tube 2b. The slide bar 15 is in contact with the heat transfer tube 2b while being in contact with the heat transfer tube 2b. By pulling out from the inside, the distance between the protective mesh 10 and the opening (the intake opening 3a) can be changed.

According to this configuration, the slide bar 15 provided on the protection net 10 is formed to extend toward the inside of the casing 3, and the slide bar 15 is configured to be slidable while being supported by the heat transfer tube 2b. Without adding a new slide mechanism, the heat transfer tube 2b can be effectively used as a part of the slide mechanism to reduce the product cost.
Further, since the slide bar 15 is pulled out from the inside of the casing 3 while being in contact with the heat transfer tube 2b, the distance between the protective mesh 10 and the opening (the intake opening 3a) can be freely changed. A predetermined distance can be secured between the protective mesh 10 and the opening (intake opening 3a) so that the heat exchanger 2 is not reached even if it passes through the mesh of the mesh 10, and the opening ratio of the protective mesh 10 is reduced. Thus, it is possible to achieve both avoidance of performance degradation of the heat exchanger 2 due to the operation and ensuring safety by preventing the finger or the like from contacting the heat exchanger 2.

  In particular, the slide bar 15 is inserted in the gap between the fins 2a, and the slide bar 15 is configured such that the sliding direction is guided by the fins 2a, so that the protection net 10 can be prevented from shaking when pulled out. At the same time, the fins 2a can be effectively used as a slide guide mechanism to reduce the manufacturing cost.

  The tip of the slide bar 15 is engaged with a part of the heat exchanger 2 when the protective mesh 10 is pulled out, and the protective mesh 10 is restricted from being separated from the opening (the intake opening 3a) by a predetermined distance or more. Since the restricting portion 15a is provided, the restricting portion 15a engages with a part of the heat exchanger 2 when the protective mesh 10 is pulled out, so that the protective mesh 10 is a predetermined distance from the opening (the intake opening 3a). In order to regulate the above separation, it is possible to prevent the slide bar 15 from unexpectedly coming out of the heat exchanger 2 when the protection net 10 is pulled out.

  Since the restricting portion 15a restricts the protection net 10 by engaging with the heat transfer tube 2b when the protection net 10 is pulled out, the structure for restricting the separation of the protection net 10 is provided with a heat transfer tube 2b having a stronger strength than the fins 2a. It can be realized by using.

  A fitting fixing portion 15b that is fitted into the heat transfer tube 2b in order to fix the protection net 10 and the heat transfer tube 2b is provided at the tip of the slide bar 15, so that the fitting is fixed when the protection net 10 is pulled out. Since the portion 15b is fitted into the heat transfer tube 2b, the protection net 10 and the heat transfer tube 2b can be fixed by a simple operation.

The protective net 10 is provided with a side net 12 provided at an end of the protective net 10 and rotatably provided around an axis along the end. The side net 12 is laminated on the protective net 10. The protective mesh 10 is fixed so as to cover the opening (the intake opening 3a) together with the protective mesh 10 in a state where the protective mesh 10 is separated from the opening (the intake opening 3a) by a predetermined distance. The opening (intake opening 3a) can be appropriately covered with the net 12, and safety by preventing the finger or the like from contacting the heat exchanger 2 can be ensured.
In addition, since the side net 12 can be stacked on the protective net 10, a space for housing the side net 12 in the casing 3 can be saved.

  The side net 12 is fixed so as to cover from the end of the protective net 10 to the edge of the opening (intake opening 3a) in a state where the protective net 10 is separated from the opening (intake opening 3a) by a predetermined distance. The structure which covers an opening appropriately by the side net | network 12 and the protection net | network 10 is realizable.

  Since the opening ratio of the side net 12 is set smaller than the opening ratio of the protective net 10, the side net 12 is positioned closer to the opening of the casing 3 than the protective net 10. If the aperture ratio of the side net 12 is smaller than the aperture ratio of the protective mesh 10, fingers or the like that have passed through the side net 12 are more likely to come into contact with the heat exchanger 2 than the protective mesh 10. The structure that protects the heat exchanger 2 by reliably preventing a finger or the like from contacting the heat exchanger 2 by the side net 12 and the structure that secures the performance of the heat exchanger 2 by the protective net 10 are compatible. be able to.

  As mentioned above, although embodiment of this invention was described based on drawing, it should be thought that a specific structure is not limited to these embodiment. The scope of the present invention is shown not only by the above description of the embodiments but also by the scope of claims for patent, and further includes all modifications within the meaning and scope equivalent to the scope of claims for patent.

  For example, the slide bar 15 of the outdoor unit 1 of the above-described embodiment is provided with a substantially U-shaped restricting portion 15a at the tip, and further, the tip is reduced in distance from the slide bar 15 and the fitting fixing portion 15b. However, as shown in FIG. 8 (a), the slide bar 115 of the outdoor unit according to another embodiment is not provided with a fitting fixing portion 15b at the tip thereof, and is a U-shaped regulating portion. 115a may be provided.

  Furthermore, the slide bar 215 of the outdoor unit of another embodiment forms the restricting portion 215a in an L shape. As described above, the restriction portions (15a, 115a, 215a) are engaged with the heat exchanger 2 (fin 2a or heat transfer tube 2b) when the slide bar (15, 115, 215) is pulled out from the casing 3. I just need it.

  Although the protection net | network 10 of the outdoor unit 1 of said embodiment provided the slide crosspiece 15 in the two corners above the substantially planar protection net | network 10, the protection net | network 10 of the outdoor unit of another embodiment is The slide bars 15 are also provided at the two lower corners of the protective mesh 10, and the heat exchanger 2 and the protective mesh 10 are fixed by the four slide bars 15 provided at the four corners of the protective mesh 10. . As described above, when a plurality of slide bars 15 are provided on the protection net 10, force is transmitted to the heat exchanger 2 through the slide bars 15, but by providing a plurality of slide bars 15, It is possible to reduce the deformation of the heat exchanger 2 by dispersing such force and transmitting a large force to the local part of the heat exchanger 2. The position where the slide bar 15 is provided may be anywhere on the protective net 10, but since the heat exchanger fan 4 exists in front of the heat exchanger 2, the slide bar to the heat exchanger fan 4 is provided. In order to avoid contact of 15, it is preferably provided at the end of the protective mesh 10.

  Further, since the slide bars 15 are provided at the two corners above the central portion in the up-down direction in the protective mesh 10, gravity is applied to the protective mesh 10 downward, so that the upper central portion of the protective mesh 10 If the slide bar 15 is provided further upward, a smooth slide can be realized while preventing the protection net 10 from falling. Furthermore, when fixing the protection net | network 10 and the heat exchanger 2, it can fix more stably. Of course, the place where the slide bar 15 is provided is not limited to the corner of the protective mesh 10.

  Further, since the slide bars 15 are further provided at the two corners below the central portion in the vertical direction in the protective net 10, more stable and smooth sliding can be realized. Furthermore, when fixing the protection net | network 10 and the heat exchanger 2, it can fix more reliably.

  By using the present invention, it is possible to provide an outdoor unit for an air conditioner that achieves both good air permeability to the heat exchanger and appropriate protection of the heat exchanger while suppressing product cost.

DESCRIPTION OF SYMBOLS 1 Outdoor unit of air conditioner 2 Heat exchanger 2a Fin 2b Heat transfer tube 3 Casing 3a Inlet opening 3b Exhaust opening 4 Heat exchanger fan 10 Protective net 12 Side net 13 Hinge part 14 Side net fixing part 15 Slide bar 15a Regulation Part 15b fitting fixing part 16 support part

Claims (11)

A heat exchanger having a plurality of fins and a heat transfer tube passing through the plurality of fins;
A casing containing the heat exchanger and having an opening through which air flows into the heat exchanger;
A protective net facing the opening,
The protection net is formed to extend toward the inside of the casing, and is provided with a slide bar that is slidable in a state supported by the heat exchanger,
An outdoor unit of an air conditioner, wherein the distance between the protective mesh and the opening is changeable by pulling out the slide bar from the inside of the casing while being in contact with the heat exchanger. The slide bar is inserted in the gap between the fins,
The outdoor unit of the air conditioner according to claim 1, wherein the slide bar is configured so that a slide direction is guided by the fin.   At the tip of the slide bar, there is provided a restricting portion that engages with a part of the heat exchanger when the protective mesh is pulled out and restricts the protective mesh from being separated from the opening by a predetermined distance or more. The outdoor unit of the air conditioner according to claim 1 or 2.   The outdoor unit for an air conditioner according to claim 3, wherein the restricting part restricts the protective net by engaging with the heat transfer pipe when the protection net is pulled out.   The outdoor unit of the air conditioner according to claim 4, wherein a fitting fixing portion that is fitted into the heat transfer tube in order to fix the protection net and the heat transfer tube is provided at a tip portion of the slide bar.   The outdoor unit of the air conditioner according to any one of claims 1 to 5, wherein a plurality of the slide bars are provided on the protection net. The opening is provided on a side surface of the casing;
The outdoor unit of an air conditioner according to any one of claims 1 to 6, wherein the slide bar is provided above a central portion in the vertical direction of the protection net.   The outdoor unit of an air conditioner according to claim 7, wherein the slide bar is further provided below a central portion in the vertical direction of the protection net. The protective net is provided with a side net provided at the end of the protective net and rotatably provided around an axis along the end.
2. The side mesh can be laminated on the protective mesh, and is fixed to extend from the end of the protective mesh toward the opening in a state where the protective mesh is spaced a predetermined distance from the opening. The outdoor unit of the air conditioner in any one of -8.   The outdoor unit for an air conditioner according to claim 9, wherein the side net is fixed so as to cover from an end of the protective net to an edge of the opening in a state where the protective net is separated from the opening by a predetermined distance. .   The outdoor unit of the air conditioner according to claim 9 or 10, wherein an opening ratio of the side net is set smaller than an opening ratio of the protective net.

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