JP2011169501A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a supporting structure of a horizontal wind direction plate of an air conditioner capable of resolving frost formation on an unexpected place, and having high operability and high stability as it can be firmly vertically disposed on a supporting body. <P>SOLUTION: In this air conditioner including the supporting structure of the horizontal wind direction plate for inserting and supporting a shaft section of the horizontal wind direction plate in a boss section disposed on the supporting body of the horizontal wind direction plate, and rotating the horizontal wind direction plate on the shaft section to change a wind direction, a flange section is disposed between the shaft section of the horizontal wind direction plate and a wind direction section, slits are formed on the shaft section to axially divide the shaft section into a plurality of partial shafts, locking claws for locking the horizontal wind direction plate on the boss section, are formed on tips of the partial shafts, and a flange-side hole end of a shaft hole formed on the boss section and the flange section are not kept into contact with each other. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an air conditioner, and more particularly to a structure for fixing left and right wind direction plates.

  Today, various home appliances are overflowing in the market due to technological advances. Among them, when consumers choose home appliances, the product itself has a form that is said to be a reliable appearance that fosters a high-quality appearance and reliability, as well as being rich in functions. Is also a big selection point.

  If this is a mature product such as an air conditioner, the difference in technology among manufacturers is small, and everyone will appeal to the superiority of their products for complaining about various functions. It is extremely difficult to compare them with sufficient chewing. Also, it is often the case that the difference in their functions often does not make the practical difference as popular.

  Under such circumstances, it is indispensable for consumers to select products based on their own sensibilities without being confused by the advertisement of manufacturers. At this time, if you can operate the operation part as a consumer's action and get a solid and firm feel, you will feel that the product is carefully made without cutting it out, and vice versa. , "Isn't the product bland and cut out?"

  This feeling is not limited to the part that consumers actually touched, but leads to the evaluation of the entire product, and has a negative impact on purchasing motivation. For this reason, various improvements have been made over the details of the product. The same approach is also taken for the left and right wind direction plates of the air conditioner, and various ingenuity has been made in various ways.When the left and right wind direction plates are operated, it moves smoothly or the left and right wind direction plates do not wobble, A thorough check is made to see if the assembly is uneven and uncomfortable. As this type of prior art, Patent Documents 1-3 are known.

  In Patent Document 1, the tip shape of the claw part is formed in a two-stage convex shape, and a concave groove is provided at a position relative to the end surface of the mold parting line of the circular hole at the base of the claw part. An air conditioner indoor unit that facilitates the installation work of the right and left wind direction deflecting blades by providing an air gap that escapes even if the blade part claw is returned due to surface sag.

  In Patent Document 2, a boss is provided at the bottom of the drain pan that continues upward at a height higher than the outer wall. The shaft of the vertical blade is fitted into the shaft hole of the boss to prevent the drain water from being drained. Installation of vertical blades for indoor units for air conditioning that does not cause leakage from the shaft hole, does not reduce the passage area of the blowout passage, makes the vertical blades less likely to wobble, does not increase the size of the drain pan, and reduces mold costs Describes the structure.

  In Patent Document 3, conventionally, the wind direction plate has two mounting claws on the right and left sides, and the wind direction plate has to be widened only by a necessary size in order to prevent the wind direction plate from coming out of the hole, which makes it difficult to insert the wind direction plate. The wind direction plate has three mounting claws, and air gaps are provided between the mounting claws so that the wind direction plate can be securely fixed and can be easily inserted. About.

JP 2003-106635 A Japanese Utility Model Publication No. 5-54950 Japanese Utility Model Publication No. 62-40445

  When installing the left and right wind direction plates of the air conditioner, the cabinet that forms the air flow path of the air conditioner is used as a support for the left and right wind direction plates, and the shafts of the left and right wind direction plates are inserted into the shaft holes opened in the bosses provided on the support. The part is inserted and the right and left wind direction plates are erected by the elasticity of the shaft part. When inserting the shaft part of the left and right wind direction plate into the boss part of the support body, the partial shaft that supports the locking claw is pushed inward by the inner surface of the shaft hole and deformed inward, until the shaft part side of the collar part hits the support body. The hole inner surface is inserted as a guide surface.

  When the latching claw reaches the latching part, the elasticity of the partial shaft that supports the latching claw expands so that the partial shaft returns to its original position, and the latching part catches on the latching part of the boss part. The left and right wind direction plates are fixed. However, in this state, due to sagging that occurs when the tip of the locking claw is inserted while pushing the inner surface of the shaft hole, and due to molding burrs that are often caused by parting lines that are often provided in this part, The locking claw is caught in the shaft hole, and the elasticity of the partial shaft prevents the locking claw from spreading.

  For this reason, the pushable dimension of the left and right wind direction plates is increased, and after the locking claws reach the locking portion, they are still pushed into the left and right wind direction plates. If it carries out like this, a latching claw will get over a latching | locking part completely, a latching claw will spread by the elasticity of a partial axis | shaft, and will come to be caught by a latching | locking part. As described above, since the pushable dimension of the left and right wind direction plates is increased, in the state where the left and right wind direction plates are assembled to the support body, the shaft is interposed between the locking claws of the left and right wind direction plates and the locking portions of the boss portion. A directional gap is created. This gap causes the left and right wind direction plates to swing up and down, causing anxiety to the consumer.

  Also, because the left and right wind direction plates are wobbled, when the wind direction is deflected to the left and right, the operability is poor, such as the wind direction plate does not stop where it was intended, and chatter noise is generated due to vibration during fan operation, In May, the air also circulates through the gap, causing dew condensation to occur in an unexpected place during cooling operation, dropping into the room, and scattering from the outlet.

  In Patent Documents 1 and 2, there is no mention of a structure that prevents dew and wobble.

  In Patent Document 3, even if the number of mounting claws is increased, the wobbling due to the dimensional difference in the axial direction between the engaging portion and the hole portion of the blowout grill is not eliminated. There is no mention of a structure that prevents exposure.

  The problem to be solved by the present invention is that an air conditioner equipped with a support structure for right and left wind direction plates that eliminates exposure to an unexpected place, has good operability, can be firmly installed on a support and has good stability. Is to provide.

  In order to suppress the wobbling of the right and left wind direction plates, the shaft holes of the left and right wind direction plates and the shaft holes of the boss portions are tightened. However, tightening the shaft holes of the left and right wind direction plates and the bosses makes it difficult to work when inserting the shaft parts into the shaft holes, and leads to increased wear of the shaft parts and shaft holes. As a result of the wobbling caused by the air conditioner, a slight vibration is generated when the air conditioner is operated, which makes consumers feel frustrated and lowers the image of the manufacturer.

  In addition, a method of pulling the right and left wind direction plate itself into the boss part with the force when the partial shaft expands to return to the original due to elasticity by providing an inclination on the locking part side of the locking claw can be considered, but the distance to provide the inclination And the parting line often comes to this part, so it is difficult to solve the problem.

  In addition, it may be possible to reduce the wear by applying lubricating oil to the sliding part of the shaft part and the shaft hole, but for a long time, this lubricating oil may flow down or dust may adhere to the lubricating action. There is a risk of losing, becoming tight, and causing the right and left wind direction plates to stop moving.

  The problem to be solved by the present invention is to insert and support the shaft portion of the left and right wind direction plate in the boss portion provided on the support body of the left and right wind direction plate, and change the wind direction by rotating the left and right wind direction plate around the shaft portion. In an air conditioner equipped with a support structure for left and right wind direction plates, a flange is provided between the shaft portion and the wind direction portion of the left and right wind direction plates, and a slit is formed in the shaft portion to divide the shaft direction into a plurality of partial shafts. A locking claw for locking the right and left wind direction plates to the boss portion is formed at the tip of at least two partial shafts, and the flange side hole end of the shaft hole provided in the boss portion does not come into contact with the flange portion. Is achieved.

  Also, a left and right wind direction plate support structure is provided in which a shaft portion of a left and right wind direction plate is inserted into and supported by a boss provided on a support body of the left and right wind direction plate, and the wind direction is changed by rotating the left and right wind direction plate around the shaft portion. In the air conditioner provided, the left and right wind direction plates are provided with a flange between the shaft portion and the wind direction portion of the left and right wind direction plates, and the left and right wind direction plates are bossed at the tip of the partial shaft divided in the axial direction by slitting the shaft portion. A locking claw for locking to the locking claw, the axial distance from the shaft side of the collar to the locking claw is A, and the axial distance from the contact portion between the support and the collar to the locking portion This is achieved by having a relationship of B ≧ A> C, where B is the distance and C is the axial distance from the end of the shaft hole formed in the boss portion to the locking portion.

  The air conditioner according to claim 3 has an axial distance from the abutting portion where the collar portion and the support abut when the left and right wind direction plates are attached to the boss portion to the locking claw after the attachment. The distance is equal to or greater than the distance before installation.

  The air conditioner according to claim 4, wherein when the right and left wind direction plates are mounted on the boss portion, the locking portion of the boss portion is locked by the locking claw from the contact portion where the flange portion and the support body abut. The distance in the axial direction in the support is such that it is greater than the distance in the axial direction from the corresponding contact portion of the left and right wind direction plates before being attached to the boss portion to the locking claw.

  In the air conditioner according to claim 5, the axial distance in the support body from the locking portion of the boss portion to the contact portion, which is locked by the locking claw, and before mounting on the boss portion. The distance in the axial direction from the contact portion of the left and right wind direction plates to the locking claw is from the distance from the locking portion to the flange side hole end on the flange side of the shaft hole provided in the boss portion. It ’s a big one.

  In the air conditioner according to claim 6, the axial distance from the shaft start corner on the heel side of the left and right wind direction plates to the locking claws is from the contact portion before the left and right wind direction plates are mounted to the locking claws. It is larger than the axial distance.

  In the air conditioner according to the seventh aspect of the present invention, the contact portion of the support is submerged from the support surface to provide a step.

  According to the first and second aspects of the invention, the exposure to an unexpected place is eliminated, the operability is good, and the holder can be erected firmly and has good stability. According to the third and fourth aspects of the invention, the operability is good, and the support can be firmly erected and the stability is good. According to the fifth and sixth aspects, it is possible to simplify the mold and reduce the manufacturing cost. According to the seventh aspect, the position of the thin plate for dimension adjustment is fixed, and the variation in the operating force is reduced.

The whole block diagram of an air conditioner. The whole indoor unit figure of the example of the present invention. The sectional side view of the indoor unit of the Example of this invention. Explanatory drawing of the left-right wind direction board support structure of Example 1 of this invention. Explanatory drawing of the left-right wind direction board support structure of Example 2 of this invention. Sectional drawing of the conventional left-right wind direction board support structure.

  Hereinafter, embodiments embodying the present invention will be described with reference to FIGS.

  First, the outline of the air conditioner will be described with reference to FIGS. FIG. 1 is an overall configuration diagram of an air conditioner. FIG. 2 is an overall view of the indoor unit according to the embodiment of the present invention. FIG. 3 is a side sectional view of the indoor unit according to the embodiment of the present invention.

  In the air conditioner, the indoor unit 17 and the outdoor unit 22 are connected by a connection pipe 21 to air condition the room.

  The indoor unit 17 is provided with a front panel 1 on the front side and an upper surface grill 2 on the upper side. The upper part of the front panel 1 is detachably attached to the unit frame 3. In addition, during operation, the opening / closing panel 1a in front of the front panel 1 rotates with the lower portion as a fulcrum, and opens a suction port also on the front surface. The top grill 2 is detachably attached to the unit frame 3. A suction port 16 for sucking room air is provided above the indoor unit 17, and a blower outlet 15 for blowing conditioned air from the indoor unit 17 into the room is provided below the indoor unit 17.

  The air outlet 15 can be opened and closed by the rotation of the up-and-down wind direction plate 11 attached to the casing 9. The up-and-down wind direction plate 11 controls the air flow blown from the indoor unit 17 up and down and blows it into the room.

  As described above, the indoor unit 17 includes the front panel 1, the top grill 2, the unit frame 3, the up / down wind direction plate 11, the casing 9, and the like.

  A pre-filter 4 is installed inside the front panel 1 and the top grill 2 of the indoor unit 17. The prefilter 4 is detachably attached to the unit frame 3. An air purification filter 5 is disposed inside the prefilter 4 so as to be positioned in front of the indoor unit 17. The air purification filter 5 is detachably attached to the unit frame 3.

  A heat exchanger 7 composed of pipes and fins is disposed inside the air purification filter 5. The heat exchanger 7 is disposed so as to surround the blower fan 8 having substantially the same horizontal length. Specifically, the heat exchanger 7 is arranged so as to surround the blower fan 8 by dividing the heat exchanger 7 at one place above the indoor unit 17 and two places in front. The blower fan 8 is disposed between the casings 9 and the rotation shaft of the blower fan 8 is connected to a motor.

  Left and right wind direction plates 10 are disposed at the air outlet 15 at predetermined intervals in the left-right direction. Specifically, the left and right wind direction plates 10 are pivotally supported by the rotation shaft 13 with respect to the casing 9.

  The refrigerant copper pipe 14 is piped behind the indoor unit 17 so that the periphery thereof is covered with a heat insulating material.

  An electrical component 12 is provided in the back of the display unit 18 of the front panel 1 to store electrical components. Moreover, the microcomputer is provided in the control board of the electrical equipment part 12, The signal sent from the remote control 20 is received by the light-receiving part 19, and the operation | movement of an air conditioner is controlled. The operation mode can be determined by the display color of the display unit 18 by changing the lightning color of the electrical unit 12 according to the operation mode.

  When the indoor unit 17 receives the operation signal from the remote controller 20, the operation is started, and the open / close panel 1 a of the front panel 1 is rotated forward with the lower part as a fulcrum by a microcomputer control, and is tilted at a predetermined angle. The upper and lower wind direction plates 11 are also rotated to open the air outlet of the indoor unit 17.

  The outdoor unit 22 also starts to operate, and the refrigerant sent from the outdoor unit 22 circulates through the refrigerant copper pipe 14 to the heat exchanger 7. The motor connected to the blower fan 8 is appropriately driven according to the operating state by microcomputer control.

  When the blower fan 8 rotates clockwise in FIG. 3, room air is sucked from the opening of the front panel 1 and the top grill 2 (hereinafter, sucked air). The suction air passes through the prefilter 4 and flows into the indoor unit 17. When the suction air passes through the prefilter 4, the sucked dust and the like are removed at the same time, and the air filter 5 inside the prefilter 4 is removed. When passing through, fine dust and the like are further removed, and clean air is obtained.

  Next, the intake air flows into the heat exchanger 7 to exchange heat, flows to the blower fan 8, and flows out to the casing 9 side. The air blown from the blower fan 8 passes through the left and right airflow direction plates 10 and the upper and lower airflow direction plates 11 provided on the downstream side of the casing 9, and is blown into the room with the air direction controlled.

  On the other hand, when the operation is stopped, after the driving of the blower fan 8 is stopped, the opening / closing panel 1a and the up / down air direction plate 11 are rotated so as to close the opening.

  In addition, a dew tray is disposed below the heat exchanger 7 and receives condensed water generated in the heat exchanger 7 during cooling operation or dehumidifying operation. The condensed water collected in the dew tray is discharged to the outside through the drain pipe 23.

  In this way, a flow path for room air is formed. That is, by driving the blower fan 8, room air is sucked from the suction port 16, passes through the prefilter 4 and the air purification filter 5, and is heat-exchanged in the heat exchanger 7, and then enters the room from the blowout port 15. Be blown out.

  The right and left wind direction plate 10 has a wind direction portion 10a as vertical blades, and a plurality of the vertical blades are arranged at predetermined intervals in a horizontal row at the position of the blowout port 15, and the left and right wind direction plates 10a are rotated left and right to change the wind direction to the left and right. Is controlling. The vertical wind direction plate 11 controls the wind direction up and down by horizontally turning the horizontal blades at the position of the air outlet 15 and rotating the horizontal blades up and down.

  As a result, the air blown from the outlet 15 is blown in the intended direction by the air direction being controlled by the left and right wind direction plates 10 and the up and down wind direction plates 11. Further, the left and right wind direction plates 10 are rotatably supported on the back casing 9 by a rotation shaft 13. The plurality of left and right wind direction plates 10 are connected by a rod-like connecting member 6 disposed in a substantially horizontal direction of the air outlet 15, and turn in the same direction in conjunction with the operation of the connecting member 6.

  Prior to describing the support structure for the left and right wind direction plates of the present invention, a conventional support structure for the left and right wind direction plates will be described with reference to FIG. 6 is a cross-sectional view of a conventional left and right wind direction plate support structure, (a) is an enlarged view of a shaft portion of the left and right wind direction plate, (b) is an enlarged view of a boss portion of the support, and (c) is a cross-sectional view of the left and right wind direction plate attached. It is.

  Conventionally, in the mounting of the left and right wind direction plates 10 of the air conditioner, as shown in FIG. 6, the casing 9 and the like constituting the air flow path of the air conditioner are used as the support body 30 of the left and right wind direction plate 10, and the support body 30 is provided. The shaft portion 10c of the left and right wind direction plate 10 is inserted into the shaft hole 31b opened in the boss portion 31, and the left and right wind direction plate 10 is erected by the elasticity of the shaft portion 10c. When the shaft portion 10c of the left and right wind direction plate 10 is inserted into the boss portion 31 of the support 30, the partial shaft 10d that supports the locking claw 10e is pushed inward by the inner surface of the shaft hole 31b and deformed inwardly, and the shaft of the flange portion 10b The shaft hole 31b is inserted using the inner surface of the shaft hole 31b as a guide surface until the portion side 10b 'contacts the support 30.

  When the locking claw 10e reaches the locking portion 31c, the partial shaft 10d expands to return to its original position due to the elasticity of the partial shaft 10d that supports the locking claw 10e. The left and right wind direction plates 10 are fixed by being caught by the locking portions 31 c of 31. However, in this state, a sagging that occurs when the tip of the locking claw 10e is inserted while pushing the inner surface of the shaft hole 31b, a molding burr that is often generated by a parting line that is often provided in this portion, etc. Thus, the latching claw 10e is caught in the shaft hole 31b, and the latching claw 10e is prevented from spreading due to the elasticity of the partial shaft 10d.

  If the left and right wind direction plates 10 are still pushed after the locking claw 10e reaches the locking portion 31c, the locking claw 10e completely gets over the locking portion 31c, and the locking claw 10e expands due to the elasticity of the partial shaft 10d. Then, it comes to be caught by the locking portion 31c. As described above, when the left and right wind direction plates 10 are assembled to the support 30, an axial gap is generated between the locking claws 10 e of the left and right wind direction plates 10 and the locking portions 31 c of the boss portion 31. Due to this gap, the right and left wind direction plate 10 may wobble up and down, which may cause distrust to consumers.

  Below, the support structure of the left-right wind direction board of this invention which wipes off this is demonstrated using FIG. 4A and 4B are explanatory views of the left and right wind direction plate support structure according to the first embodiment of the present invention, FIG. 4A is an enlarged view of a shaft portion of the left and right wind direction plate, FIG. 4B is an enlarged view of a boss portion of the support body, and FIG. It is board attachment state sectional drawing.

  In the mounting of the left and right wind direction plates 10 of the air conditioner according to the present invention, as shown in FIG. 4, the casing 9 constituting the blowout air path of the air conditioner is used as the support body 30 of the left and right wind direction plates 10 and is provided on the support body 30. The shaft portion 10c of the left and right wind direction plate 10 is inserted into the shaft hole 31b opened in the boss portion 31, and the left and right wind direction plate 10 is erected by the elasticity of the shaft portion 10c. When the shaft portion 10c of the left and right wind direction plate 10 is inserted into the boss portion 31 of the support 30, the partial shaft 10d that supports the locking claw 10e is pushed inward by the inner surface of the shaft hole 31b and deformed inwardly, and the shaft of the flange portion 10b The shaft hole 31b is inserted using the inner surface of the shaft hole 31b as a guide surface until the portion side 10b 'contacts the support 30.

  Where the shaft portion side 10 b ′ of the flange portion 10 b hits the stepped portion 32 of the support 30, the locking claw 10 e has not yet reached the locking portion 31 c of the boss portion 31. In the annular region E from the outer diameter of the shaft portion 10c of the left and right wind direction plate 10 to the inner diameter of the stepped portion 32, the flange portion 10b and the support 30 have the gap g in FIG. By forming a thin portion in the annular region E so that it can be elastically or viscoelastically deformed, and further applying a pushing force to the left and right wind direction plate 10, the flange portion 10b is elastic or viscous. It is elastically deformed and the locking claw 10e reaches the locking part 31c.

  However, even in this state, the sagging that occurs when the tip of the locking claw 10e is inserted while pushing the inner surface of the shaft hole 31b, the molding burr that is often caused by the parting line that is often provided in this portion, etc. Thus, the latching claw 10e is caught in the shaft hole 31b, and the latching claw 10e is prevented from spreading due to the elasticity of the partial shaft 10d.

  If the force for pushing into the right and left wind direction plate 10 is applied after the locking claw 10e reaches the locking portion 31c, the flange portion 10b is elastically equivalent to the gap g between the flange side hole end 31a and the flange portion 10b. Alternatively, the left and right wind direction plates 10 can be further pushed in by being viscoelastically deformed. When the left and right wind direction plates 10 are further pushed in this way, the locking claw 10e completely gets over the locking portion 31c, and the locking claw 10e expands by the elasticity of the partial shaft 10d and is caught by the locking portion 31c.

  Next, when the pushing of the left and right wind direction plates 10 is stopped, the left and right wind direction plates 10 are slightly restored due to the elasticity or viscoelasticity of the flange portion 10b, and the locking claws 10e are in close contact with the locking portions 31c, and The left and right wind direction plates 10 hold the support 30 between the hook 10b and the locking claw 10e by the elastic force or viscoelastic force due to the deformation remaining in the hook 10b, and are firmly fixed to the support 30 without rattling. Is done.

  As a result, the flange portion 10b of the left and right wind direction plate 10 and the support 30 are in close contact with each other, blocking indoor air flowing in through the shaft hole 31b that fixes the left and right wind direction plate 10, and suppressing the dew phenomenon near the left and right wind direction plate 10. To do.

  The operating force when rotating the left and right wind direction plates 10 is determined by the elastic characteristics of the flange portion 10b in the axial direction and the coefficient of friction between the left and right wind direction plates 10 and the support 30, and these are selected as appropriate. By doing so, it is possible to obtain an appropriate operating force, and it becomes unnecessary to manage a slight dimensional difference as in the conventional case, and the number of manufacturing steps can be reduced.

  At this time, as shown in FIG. 4 (c), the gap g is formed so that the flange side hole end 31a of the shaft hole 31b formed in the boss part 31 does not contact the shaft part side 10b 'of the flange part. By determining the relevant dimensions, the left and right wind direction plates 10 as described above can be fixed.

  Thus, the left and right wind direction plate support structure of the air conditioner of the embodiment is supported by inserting the shaft portion of the left and right wind direction plate into the boss portion provided on the support body of the left and right wind direction plate, Rotate around to change the wind direction, provide a flange between the shaft part and the wind direction part of the left and right wind direction plate, put a slit in the shaft part and divide it into a plurality of partial axes, at least 2 or more A locking claw for locking the left and right wind direction plates to the boss portion is formed at the tip of the partial shaft, and the flange side hole end of the shaft hole provided in the boss portion does not come into contact with the flange portion.

  In general, the pressure of the air flowing through the air passage of the indoor unit during operation is divided into static pressure and dynamic pressure, and the static pressure of the air passage and the indoor static pressure (the movement of the indoor air is compared to the flow of air in the indoor unit). Because it is very small, the dynamic pressure is very small, and almost all of the indoor air pressure can be regarded as static pressure.) If there is a difference, air enters and exits even from a slight gap, and in the part cooled by cooling operation, When the room is exposed to high humidity air, the area is exposed to dew.

  The amount of dew depends on the amount of air entering and exiting the gap, and when there is a large amount of air entering and exiting, the amount of dew is not negligible. There is a risk of fouling. When the amount of air entering and exiting is small, no dew is attached or the attached dewdrop does not grow and stays in the indoor unit, and there is no fear of polluting the room.

  When there is such a gap at the position of the left and right wind direction plates, the left and right wind direction plates are close to the outlet, so the static pressure in the air path (expressed as positive or negative with the indoor air pressure as the reference value zero) is negative. Then, indoor air blows out from the back of the indoor unit and flows into the air passage, and if the gap is large, the dew phenomenon occurs in the vicinity of this during cooling operation.

  In the support structure for the left and right wind direction plates of the air conditioner of the embodiment, the air between the blow-off air passage with the casing as a boundary and the back of the indoor unit is obtained by the flanges of the left and right wind direction plates being in close contact with the support. The circulation of water becomes extremely small, and the exposure to unexpected places that occurred during cooling operation is eliminated.

  Also, when the shaft part of the left and right wind direction plate is inserted into the boss part of the support body when the left and right wind direction plate is attached, the locking claw is pushed by the inner surface of the shaft hole and deformed inward, and the shaft part side of the collar part is the support body The inner surface of the shaft hole is inserted as a guide surface until it hits the step. Where the shaft portion side of the collar portion contacts the stepped portion of the support, the locking claw has not yet reached the locking portion of the boss portion. Further, when a force for pushing into the left and right wind direction plates is applied, the collar portion is elastically deformed and the locking claw reaches the locking portion.

  However, even in this state, due to sagging that occurs when the tip of the locking claw is inserted while pushing the inner surface of the shaft hole, and due to molding burrs that are often caused by parting lines that are often provided in this part, The locking claw is caught in the shaft hole, and the elasticity of the partial shaft prevents the locking claw from spreading.

  If the force applied to the wind direction plate is applied after the locking claw has reached the locking portion, the hook portion elastically deforms by the gap between the flange side hole end and the flange portion, and the right and left wind direction plates are moved. It can be pushed further. When the left and right wind direction plates are pushed further in this way, the locking claw completely gets over the locking part, and the locking claw expands due to the elasticity of the partial shaft and is caught by the locking part.

  Next, when the pushing of the left and right wind direction plates is stopped, the left and right wind direction plates are slightly restored due to the elasticity of the buttocks, the locking claws are in close contact with the locking portions, and the elasticity due to the deformation remaining on the buttocks By force, the left and right wind direction plates sandwich the support body with the buttock and the locking claw, and are firmly fixed to the support body without rattling. As a result, even when the left and right wind direction plates are operated to rotate, they can be smoothly rotated and can be firmly stopped at the intended place, and chatter noise is eliminated and the sound is quiet.

  The operating force when rotating the left and right wind direction plates is determined by the elastic characteristics of the axial direction of the buttock and the coefficient of friction between the left and right wind direction plates and the support, and by appropriately selecting these, An appropriate operating force can be obtained, and it is not necessary to manage a slight dimensional difference as in the prior art, and the number of manufacturing steps can be reduced.

  For this reason, it is possible to provide a support structure for the right and left wind direction plates of the air conditioner that eliminates exposure to an unexpected place, has good operability, can be erected on the support, and has good stability.

  In addition, although the Example demonstrates the case where a right-and-left wind direction board is fixed to the casing of the indoor unit back side, when fixing to the casing on the opposite side (in the arrangement of an Example, the dew plate side) of a blowing air path The same effect can be obtained.

  In addition, the thin-walled portion that can be elastically deformed in the annular region E does not necessarily have to be formed thin by selecting the material of the flange portion 10b. However, if it is a structure brought about elastically or viscoelastically by the annular region E, the shape may be thin.

  Further, a distance a in the axial direction after mounting from the shaft portion side 10b 'of the collar portion that becomes the contact portion 40 of the collar portion 10b to the support 30 to the locking claw 10e (shown in (c) of FIG. 4). ) Is greater than or equal to the axial distance A (shown in FIG. 4A) from the shaft side 10b 'of the collar before mounting to the locking claw 10e. That is, a ≧ A.

  As described above, the support structure for the left and right wind direction plates of the air conditioner according to the embodiment is such that when the left and right wind direction plates are attached to the boss portion, the hook portion and the support body come into contact with each other. The distance after installation of the axial distance to the pawl is greater than the distance before installation.

  As a result, the left and right wind direction plates firmly hold the support body between the abutting portions and the locking claws due to the elastic deformation of the collar portion, and it becomes possible to mount the left and right wind direction plates stably.

  For this reason, it is possible to provide a support structure for the right and left wind direction plates of the air conditioner that has good operability, can be firmly installed on the support, and has good stability.

  In addition, an axial distance B (shown in FIG. 4B) from the stepped portion 32 that becomes the contact portion 40 with the flange portion of the support 30 to the engaging portion 31c of the boss portion 31 is set before mounting. The axial distance A (shown in FIG. 4A) from the shaft portion side 10b 'of the collar portion to the locking claw 10e is set to be equal to or greater. That is, a relationship of B ≧ A is established.

  As described above, the support structure for the left and right wind direction plates of the air conditioner according to the embodiment is such that when the left and right wind direction plates are attached to the boss portion, the hook portion and the support body come into contact with each other. The axial distance of the support to the locking portion of the boss portion where the pawl is locked is the axial direction from the corresponding contact portion of the left and right wind direction plates before mounting to the boss portion to the locking pawl. More than the distance.

  As a result, the left and right wind direction plates firmly hold the support body between the abutting portions and the locking claws due to the elastic deformation of the collar portion, and it becomes possible to mount the left and right wind direction plates stably.

  For this reason, it is possible to provide a support structure for the right and left wind direction plates of the air conditioner that has good operability, can be firmly installed on the support, and has good stability.

  Further, an axial distance B (shown in FIG. 4 (b)) from the step portion 32, which becomes the contact portion 40 with the flange portion of the support 30, to the locking portion 31c of the boss portion 31, and mounting An axial distance A (shown in FIG. 4 (a)) from the shaft side 10b 'of the front collar to the latching claw 10e is indicated from the collar hole end 31a of the boss 31 to the latch 31c. Is larger than the distance C in the axial direction (shown in FIG. 4B). That is, the relationship of B, A> C is established. Of course, at this time, the above-described relationship B ≧ A is maintained, so that the relationship B ≧ A> C is established.

  Thus, the support structure of the right and left wind direction plates of the air conditioner of the embodiment is the axial direction of the support body from the locking portion of the boss portion to the contact portion, which is locked by the locking claws. The distance and the axial distance from the abutment portion to the locking claw of the left and right wind direction plates before being mounted on the boss portion are determined by the axial hole formed in the boss portion from the locking portion. It is larger than the distance to the heel side hole end on the heel side.

  As a result, the shaft side surface of the flange portion of the right and left wind direction plate is a single flat surface, so that the flange side hole end of the shaft hole provided in the boss portion does not come into contact with the flange portion. Rather than making the surface of the shaft portion side concave, the slide mold can be reduced, the design and manufacture of the mold can be facilitated, and the manufacturing cost can be reduced.

  For this reason, the support structure of the right-and-left wind direction board of an air conditioner which can simplify a shaping | molding die and can reduce manufacturing cost can be provided.

  Next, the support structure of the left and right wind direction plates of Example 2 will be described with reference to FIG. 5A and 5B are explanatory views of the left and right wind direction plate support structure according to the second embodiment of the present invention, FIG. 5A is an enlarged view of the shaft portion of the left and right wind direction plate, FIG. 5B is an enlarged view of the boss portion of the support body, and FIG. It is board attachment state sectional drawing.

  In the support structure for the right and left wind direction plates of the second embodiment, the axial distance D (shown in the enlarged view of the portion P in FIG. 5A) from the shaft portion start corner 10g to the locking claw 10e is set to The axial distance A (shown in FIG. 5A) from the shaft portion side 10b 'to the locking claw 10e is made larger. That is, a relationship of D> A is established. As a result, a gap g (shown in FIG. 5C) between the shaft portion start corner 10g of the flange portion 10b and the flange side hole end 31a of the boss portion 31 is generated.

  Thus, the support structure of the left and right wind direction plates of the air conditioner of the embodiment is such that the axial distance from the shaft start corner on the heel side of the left and right wind direction plates to the locking claws is the left and right wind direction plate mounting. It is larger than the distance in the axial direction from the previous contact portion to the locking claw.

  As a result, the abutment portion of the support and the heel side hole end are formed as a single plane, so that the heel side hole end of the shaft hole provided in the boss portion is not in contact with the heel portion. It is easier to manufacture the contact part of the mold of the support and the end part of the side hole than the contact part of the support is lowered by one step from the contact part of the support. Thus, the manufacturing cost can be reduced.

  For this reason, the support structure of the right-and-left wind direction board of an air conditioner which can simplify a shaping | molding die and can reduce manufacturing cost can be provided.

  A portion where the flange portion 10b of the right and left wind direction plate 10 abuts against the support 30 is dug down from the blowing air passage surface of the casing 9 to provide a step portion as shown in step d (shown in FIGS. 4 and 5 (b)). It is also possible to store the collar portion 10b therein.

  Thus, the support structure of the left and right wind direction plates of the air conditioner of the embodiment provides the step by sinking the contact portion of the support from the support surface.

  In general, the once-through fan frequently used in the indoor unit 17 flows along the casing 9 of the blowout air passage portion. When a protrusion protrudes from the casing 9, a vortex is generated in the wake from the protrusion. Indoor air is involved, noise is generated, and high humidity indoor air is involved during cooling, which may cause condensation in the blowout air path, and the grown dewdrops are blown away by the blown air and the area around the blowout opening There is a risk of splashing into the room.

  In the support structure for the left and right wind direction plates of the air conditioner of the embodiment, the protruding dimension of the flange portion 10b of the left and right wind direction plate 10 protruding from the casing 9 to the blowing air path is reduced. As a result, the turbulence of the blown air flowing along the casing 9 is reduced, the generated vortices are also reduced, the degree of entrainment of indoor air is reduced, and even when condensation occurs, the growth stops at a stage where the dew drops are small. The risk of splashing from the outlet becomes very small.

  Also, in order to eliminate the rattling of the left and right wind direction plates caused by dimensional variations, it is unavoidable that the axial distance of the support from the locking portion of the boss portion to the abutting portion or the contact of the left and right wind direction plates When it is necessary to adjust the distance from the part to the locking claw at the time of attachment of the left and right wind direction plates, when a washer-like thin plate for adjustment is interposed in the contact part of the support or the left and right wind direction plates, The movement of the thin plate is limited by the step.

  At this time, if the size of the thin plate is substantially equal to the size of the collar portion, the center position of the thin plate is fixed to the center position of the step. Since this center position is also the center position of the shaft portion, the thin plate does not protrude greatly from the collar portion, and the appearance is not disturbed.

  If there is no step and the thin plate protrudes greatly from the collar, the contact between the left and right wind direction plates and the support is not uniform, and the operating force of the left and right wind direction plates varies, but such problems can be prevented.

  In addition, if there is no step, the thin plate must be fixed to the heel or support with an adhesive or the like in order to prevent the thin plate from protruding from the buttock. Careful attention is required during work such as attachment to unintentional parts, leading to increased manufacturing costs. Such a situation can be solved by appropriately providing a step.

  Therefore, it is possible to provide a support structure for the right and left wind direction plates of the air conditioner in which the position of the dimension adjusting thin plate is fixed and the variation in the operating force is reduced.

  In addition, although the Example demonstrates taking the example of the right and left wind direction board fixed by the cantilever, this invention is not limited to this, It is also possible to employ this structure on one side of the wind direction plate fixed at both ends. Needless to say, it can also be applied to the fixing of up-and-down wind direction plates, and can be applied to one side of the left and right wind direction plates that are fixed at both ends of the air conditioner with a vertically long outlet and the up and down wind direction plate that is fixed to the cantilever. It is also a self-evident reason.

  As described above, according to the support structure of the left and right wind direction plates of the air conditioner according to claim 1, the shaft portion of the left and right wind direction plates is inserted into and supported by the boss portion provided on the support body of the left and right wind direction plates, Rotate the left and right wind direction plates around the shaft part to change the wind direction, provide a collar part between the shaft part and the wind direction part of the left and right wind direction plate, put a slit in the shaft part and divide it in the axial direction to make multiple parts A locking claw that locks the left and right wind direction plates to the boss portion is formed at the tip of at least two partial shafts on the shaft, and the flange side hole end of the shaft hole formed in the boss portion is in contact with the flange portion do not do.

  As a result, the flanges of the right and left wind direction plates are brought into close contact with the support so that the flow of air between the blow-off air channel and the back of the indoor unit is extremely reduced, which occurs during the cooling operation. The exposure to unexpected places is eliminated.

  Also, when the shaft part of the left and right wind direction plate is inserted into the boss part of the support body when the left and right wind direction plate is attached, the locking claw is pushed by the inner surface of the shaft hole and deformed inward, and the shaft part side of the collar part is the support body The inner surface of the shaft hole is inserted as a guide surface until it hits the step. Where the shaft portion side of the collar portion hits the stepped portion of the support, the locking claw has not yet reached the locking portion of the boss portion. Further, when a force for pushing into the left and right wind direction plates is applied, the collar portion is elastically deformed and the locking claw reaches the locking portion.

  However, even in this state, due to sagging that occurs when the tip of the locking claw is inserted while pushing the inner surface of the shaft hole, and due to molding burrs that are often caused by parting lines that are often provided in this part, The locking claw is caught in the shaft hole, and the elasticity of the partial shaft prevents the locking claw from spreading.

  If the force applied to the wind direction plate is applied after the locking claw has reached the locking portion, the hook portion elastically deforms by the gap between the flange side hole end and the flange portion, and the right and left wind direction plates are moved. It can be pushed further. When the left and right wind direction plates are pushed further in this way, the locking claw completely gets over the locking part, and the locking claw expands due to the elasticity of the partial shaft and is caught by the locking part.

  Next, when the pushing of the left and right wind direction plates is stopped, the left and right wind direction plates are slightly restored due to the elasticity of the buttocks, the locking claws are in close contact with the locking portions, and the elasticity due to the deformation remaining on the buttocks By force, the left and right wind direction plates sandwich the support body with the buttock and the locking claw, and are firmly fixed to the support body without rattling. As a result, even when the left and right wind direction plates are operated to rotate, they can be smoothly rotated and can be firmly stopped at the intended place, and chatter noise is eliminated and the sound is quiet.

  The operating force when rotating the left and right wind direction plates is determined by the elastic characteristics of the axial direction of the buttock and the coefficient of friction between the left and right wind direction plates and the support, and by appropriately selecting these, An appropriate operating force can be obtained, and it is not necessary to manage a slight dimensional difference as in the prior art, and the number of manufacturing steps can be reduced.

  For this reason, the exposure to an unexpected place is eliminated, the operability is good, and the support structure for the right and left wind direction plates of the air conditioner that can be erected firmly on the support and has good stability can be obtained.

  Further, according to the support structure for the left and right wind direction plates of the air conditioner according to claim 2, when the left and right wind direction plates are attached to the boss portion, from the abutting portion where the collar portion and the support body abut, The distance in the axial direction to the locking claw after installation is equal to or greater than the distance before installation.

  As a result, the left and right wind direction plates firmly hold the support body between the abutting portions and the locking claws due to the elastic deformation of the collar portion, and it becomes possible to mount the left and right wind direction plates stably.

  For this reason, it is possible to obtain a support structure for the right and left wind direction plates of the air conditioner that has good operability, can be firmly installed on the support, and has good stability.

  Further, according to the support structure for the left and right wind direction plates of the air conditioner according to claim 3, when the left and right wind direction plates are attached to the boss portion, the abutment portion where the flange portion and the support body abut, The distance in the axial direction of the support to the locking portion of the boss portion that the locking claw locks is from the corresponding contact portion of the left and right wind direction plates before being attached to the boss portion to the locking claw. Make it more than the axial distance.

  As a result, the left and right wind direction plates firmly hold the support body between the abutting portions and the locking claws due to the elastic deformation of the collar portion, and it becomes possible to mount the left and right wind direction plates stably.

  For this reason, it is possible to obtain a support structure for the right and left wind direction plates of the air conditioner that has good operability, can be firmly installed on the support, and has good stability.

  Further, according to the support structure for the left and right wind direction plates of the air conditioner according to claim 4, the shaft in the support body from the locking portion of the boss portion to the contact portion that the locking claw locks. The distance in the direction and the axial distance from the abutment portion to the locking claw of the left and right wind direction plates before being attached to the boss portion are the shafts provided in the boss portion from the locking portion. It is larger than the distance to the end of the hole on the flange side of the hole.

  As a result, the shaft side surface of the flange portion of the right and left wind direction plate is a single flat surface, so that the flange side hole end of the shaft hole provided in the boss portion does not come into contact with the flange portion. Rather than making the surface of the shaft portion side concave, the slide mold can be reduced, the design and manufacture of the mold can be facilitated, and the manufacturing cost can be reduced.

  For this reason, the support structure of the right and left wind direction plates of the air conditioner which can simplify a shaping | molding die and can reduce manufacturing cost can be obtained.

  Further, according to the support structure for the left and right wind direction plates of the air conditioner according to claim 5, the axial distance from the shaft start corner on the heel side of the left and right wind direction plates to the locking claw is the left and right wind direction. It is larger than the distance in the axial direction from the abutting portion before mounting the plate to the locking claw.

  As a result, the abutment portion of the support and the heel side hole end are formed as a single plane, so that the heel side hole end of the shaft hole provided in the boss portion is not in contact with the heel portion. It is easier to manufacture the abutment part of the support mold and the end of the heel side hole than to make the surface on the shaft side a single plane and lower the heel side hole end one step from the abutment part of the support. Thus, the manufacturing cost can be reduced.

  For this reason, the support structure of the right and left wind direction plates of the air conditioner which can simplify a shaping | molding die and can reduce manufacturing cost can be obtained.

  Further, according to the support structure for the left and right wind direction plates of the air conditioner according to the sixth aspect, the contact portion of the support is submerged from the support surface to provide a step.

  Thereby, the protrusion dimension of the collar part 10b of the right-and-left wind direction board 10 which protrudes from the casing 9 to a blowing air path becomes small. As a result, the turbulence of the blown air flowing along the casing 9 is reduced, the generated vortices are also reduced, the degree of entrainment of indoor air is reduced, and even when condensation occurs, the growth stops at a stage where the dew drops are small. The risk of splashing from the outlet becomes very small.

  Also, in order to eliminate the rattling of the left and right wind direction plates caused by dimensional variations, it is unavoidable that the axial distance of the support from the locking portion of the boss portion to the contact portion or the contact of the left and right wind direction plates When it is necessary to adjust the distance from the part to the locking claw at the time of attachment of the left and right wind direction plates, when a washer-like thin plate for adjustment is interposed in the contact part of the support or the left and right wind direction plates, The movement of the thin plate is limited by the step.

  At this time, if the size of the thin plate is substantially equal to the size of the collar portion, the center position of the thin plate is fixed to the center position of the step. Since this center position is also the center position of the shaft portion, the thin plate does not protrude greatly from the collar portion, and the appearance is not disturbed.

  If there is no step and the thin plate protrudes greatly from the collar, the contact between the left and right wind direction plates and the support is not uniform, and the operating force of the left and right wind direction plates varies, but such problems can be prevented.

  In addition, if there is no step, the thin plate must be fixed to the heel or support with an adhesive or the like in order to prevent the thin plate from protruding from the buttock. Careful attention is required for work such as attachment to unintended parts, leading to an increase in manufacturing costs. Such a situation can be solved by appropriately providing a step.

  For this reason, the support structure of the right and left wind direction plates of the air conditioner can be obtained in which the position of the thin plate for dimension adjustment is fixed and the variation in the operating force is reduced.

DESCRIPTION OF SYMBOLS 1 Front panel 1a Opening and closing panel 2 Upper surface grill 3 Unit frame 4 Pre filter 5 Air purification filter 6 Connecting member 7 Heat exchanger 8 Blower fan 9 Casing 10 Right-and-left wind direction board 10a Shaft portion 10d Partial shaft 10e Locking claw 10f Slit 10g Shaft portion start corner 11 Vertical wind direction plate 12 Electrical portion 13 Rotating shaft 14 Refrigerant copper pipe 15 Air outlet 16 Suction port 17 Indoor unit 18 Display portion 19 Light receiving portion 20 Remote control 21 Connection Piping 22 Outdoor unit 23 Drain piping 24 Dew dish 30 Support body 31 Boss part 31a Side hole end 31b Shaft hole 31c Locking part 32 Step part 40 Contacting part A From shaft part side of hook part before mounting to locking claw A distance in the axial direction from the shaft side of the flange after mounting to the locking claw B in the axial direction from the contact portion with the flange of the support to the locking portion of the boss Distance C Distance in the axial direction from the locking part of the boss part to the end of the heel side hole D Distance in the axial direction from the starting corner of the shaft part to the locking claw d Step difference E of the support abutting part Shaft outer diameter of the wind direction plate An annular region g between the contact portion and the inner diameter of the support body Gap between the shaft start corner of the flange and the flange side hole end of the boss

Claims (7)

The left and right wind direction plate shafts are inserted into and supported by the bosses provided on the left and right wind direction plate supports, and the left and right wind direction plates are rotated around the shaft portion to change the wind direction. In air conditioner,
A flange is provided between the shaft portion and the wind direction portion of the left and right wind direction plate, and a slit is formed in the shaft portion to divide the shaft portion into a plurality of partial shafts. An air conditioner characterized in that a locking claw for locking to the boss portion is formed, and a flange side hole end of a shaft hole provided in the boss portion is not in contact with the flange portion. The left and right wind direction plate shafts are inserted into and supported by the bosses provided on the left and right wind direction plate supports, and the left and right wind direction plates are rotated around the shaft portion to change the wind direction. In air conditioner,
A collar is provided between the shaft portion and the wind direction portion of the left and right wind direction plates,
At the tip of a partial shaft that is divided in the axial direction by slitting the shaft portion, it is provided with a locking claw for locking the left and right wind direction plate to the boss portion,
A distance in the axial direction from the shaft portion side of the collar portion to the locking claw is A,
A distance in the axial direction from the contact portion between the support and the flange portion to the locking portion is B,
The axial distance from the side hole end of the shaft hole provided in the boss portion to the locking portion is C,
And when
B ≧ A> C
An air conditioner characterized by having the following relationship.   3. After the mounting according to claim 1, the axial distance from the abutting portion where the collar portion and the support abut when the left and right wind direction plates are mounted on the boss portion to the locking claw. The air conditioner is characterized in that the distance is equal to or greater than the distance before installation.   3. The boss portion according to claim 1, wherein when the left and right wind direction plates are attached to the boss portion, the locking claw is locked from a contact portion where the flange portion and the support are in contact with each other. The axial distance of the support body to the locking portion is set to be equal to or greater than the axial distance from the corresponding contact portion of the left and right wind direction plates before being attached to the boss portion to the locking claws. A featured air conditioner.   The axial distance in the said support body from the latching | locking part of the said boss | hub part which the said latching claw latches to the said contact part, and before mounting | wearing with the said boss | hub part in Claim 3 or 4 An axial distance from the abutment portion to the locking claw of the left and right wind direction plates of the left and right wind direction plates is the flange side of the flange portion side of the shaft hole formed in the boss portion from the locking portion. An air conditioner characterized by being larger than the distance to the hole end.   5. The axial distance from the flange-side shaft portion start corner of the left and right wind direction plate to the locking claw according to claim 3 or 4, An air conditioner characterized by being larger than the axial distance to the nail.   5. The air conditioner according to claim 3, wherein a step is provided by sinking the contact portion of the support from the surface of the support.

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