JP2018039358A - Net part attachment means, air conditioner for vehicle equipped with net part attachment means, and vehicle having air conditioner for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve such a problem that a productivity rate cannot be improved sufficiently because of the necessity of making an attaching site horizontal in the attachment of the net part (an air flow straightening member) for prevention of noise that is provided in a conditioned air blow-out port of an air conditioner for vehicles.SOLUTION: Net part attachment means for an air conditioner for vehicles includes: a net part for the prevention of noise that is provided in the vicinity of a conditioned air blow-out port of the air conditioner for vehicles; a first net part holding member which is firmly attached to the conditioned air blow-out port; and a second net part holding member which is fixed to the first net part holding member. An end part of the net part is tightly held by the first net part holding member and the second net part holding member.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a means for attaching a net for noise prevention provided at a conditioned air outlet of a vehicle air conditioner, and further relates to a vehicle air conditioner to which they are attached.

  In the vehicle air conditioner, there has been a problem that noise is generated due to an uneven wind speed distribution of conditioned air sent to the conditioned air outlet. In order to solve this problem, it is widely performed that an air rectifying member is arranged at the conditioned air outlet to make the deviation of the wind speed distribution nearly uniform.

  For example, Patent Document 1 discloses a technical idea of an automotive air conditioner in which a net is arranged at a defrost outlet of an air conditioning unit to make the wind speed distribution of the blown air uniform.

  Here, according to Patent Document 1, the mesh portion is attached by placing the mesh on the flange surface provided at the air outlet of the air conditioner, and then attaching the seal member by the seal member bonded to the flange surface. A technique for fixing a network at the same time is disclosed. According to this, since the air conditioning unit and the defroster duct on the vehicle side are connected via the seal member, there is an advantage that air does not leak.

JP 2004-161142 A

  However, according to Patent Document 1, since the mesh portion is placed on the flange surface provided at the air outlet of the air conditioning unit and then fixed to the flange surface by pasting a seal member (lining), the air outlet of the air conditioning unit. The flange surface must be in a substantially horizontal posture. It is also difficult to prepare an integral body of a net and a seal member in advance. For this reason, there was a problem that productivity could not be improved sufficiently.

  Then, this invention makes it a subject to provide the structure which can improve productivity regarding the vehicle air conditioner which attached the net | network part (air rectification | straightening member) for noise prevention to the conditioned air blower outlet, In addition, those Another object of the present invention is to provide a vehicle air conditioner with a net attached.

  In order to solve such a problem, a first aspect of the present invention is a mesh unit attaching means for a vehicle air conditioner, comprising a noise preventing mesh unit provided near a conditioned air outlet of the vehicle air conditioner, and a conditioned air blowing unit. A first net holding member fixed to the outlet; and a second net holding member fixed to the first net holding member; the first net holding member and the second net An end portion of the mesh portion is clamped with a holding member.

  Here, the conditioned air outlet is an air outlet whose temperature and humidity are adjusted by the vehicle air conditioner, and is a defrost outlet for blowing air in the front window direction, from the front panel front to the passenger's upper body. There are vent outlets for blowing air, foot outlets for blowing air to the feet of passengers, and the like. The vicinity of the conditioned air outlet is, for example, a flange portion around the outlet.

  According to this, the net part is clamped between the first net part holding member and the second net part holding member, and the first net part holding member is fixed to the conditioned air outlet. Therefore, the flange surface of the air outlet of the air conditioning unit does not need to be in a substantially horizontal posture, and the net unit, the first net unit holding member, and the second net unit holding member are integrated in advance. Therefore, the productivity of the vehicle air conditioner can be improved.

  In addition, although the method of adhering the 1st net | network part holding member to a conditioned air blower outlet is desirable to stick with an adhesive agent, it is not limited to it, Another method may be sufficient.

  Here, as for the net | network part attachment means by one Embodiment of 1st this invention, it is desirable for the 2nd net | network part holding member to be a lining which has elasticity. When the vehicle air conditioner is attached to the vehicle, the conditioned air outlet is connected to the duct, but it can be easily compressed by making the second mesh part holding member elastic, preventing air leakage. However, it can be connected.

  Alternatively, it is desirable that the mesh portion attaching means according to the first embodiment of the present invention is such that the first mesh portion holding member also has an elastic lining. The connection can be made while preventing air leakage.

  Furthermore, it is desirable that the mesh portion attaching means according to the embodiment of the first aspect of the present invention is such that the first mesh portion holding member is relatively less deformable than the second mesh portion holding member. . When the vehicle air conditioner is attached to the vehicle, even if a position shift occurs between the duct and the like, the shift can be absorbed by the deformation of the easily deformable second net portion holding member.

  Here, as a combination of these materials, for example, by using foamed polyethylene as the first mesh portion holding member and foamed polyurethane (urethane rubber) as the second mesh portion retaining member, the difference in desirable deformability can be simplified. However, the material is not limited to this, and a polymer material (including foamed material) such as polypropylene and polystyrene can be used as the first lining. As materials that can be used for both the first and second linings, natural rubber or synthetic rubber such as EPDM (ethylene propylene diene rubber), NBR (nitrile rubber), IR (isoprene rubber) , Butadiene rubber (BR), Styrene butadiene rubber (SBR), Chloroprene rubber (CR), Isobutylene / isoprene rubber (IIR), Chlorosulfonated polyethylene rubber (CSM), Acrylic rubber (ACM), Fluoro rubber (FKM), Epichlorohydrin It is also possible to use rubber (ECO), silicon rubber, or the like. In particular, EPDM is effective in places where water tightness is required in addition to air tightness. Furthermore, it is possible to realize different eases of deformation by foaming these or changing the degree of foaming.

  Next, as a second aspect of the present invention, there is provided an air conditioner for vehicles, which may include the net part attaching means described so far.

  In this way, a highly productive air conditioner can be realized as the entire vehicle air conditioner.

  Furthermore, as a third aspect of the present invention, the vehicle may include an air conditioner for a vehicle having the net unit attaching means described so far.

  In this way, the air conditioning performance with high productivity can be realized as the entire vehicle, and the usefulness of the vehicle is further increased.

  As described above, according to the present invention, the vehicle air conditioning apparatus in which the noise prevention mesh portion (air rectifying member) is attached to the conditioned air outlet, the first mesh portion holding member fixed to the conditioned air outlet. And the flange surface of the air outlet of the air conditioning unit needs to be in a substantially horizontal posture by sandwiching the end portion of the mesh part between the first mesh part holding member and the second mesh part holding member fixed. In addition, since it is possible to prepare an integral body of the net part, the first net part holding member, and the second net part holding member in advance, productivity can be improved.

It is a perspective view of the net | network part attachment means of the vehicle air conditioner which concerns on one Embodiment of this invention. 1 is a front view of a vehicle air conditioner according to an embodiment of the present invention. It is a perspective view of the air-conditioning unit of the vehicle air conditioner concerning one embodiment of the present invention. It is sectional drawing of the air conditioning unit of the vehicle air conditioner which concerns on one Embodiment of this invention. It is sectional drawing of the example of the net | network part attachment means of the air conditioner which concerns on one Embodiment of this invention.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 2 is a front view of the vehicle air conditioner according to the embodiment of the present invention.

  Here, the vehicle air conditioner 1 is roughly divided into an intake unit 4 that selectively introduces outside air from the outside air inlet 2 or inside air from the inside air inlet 3, and a storage case 7 that houses the blower 5 and the evaporator 6. And the control of the temperature of the blown air having the heater core 8 and the air conditioning unit 10 having a plurality of blowout ports and blowing out the temperature-conditioned air as appropriate.

  When the blower 5 is operated, the air selected from the outside air introduction port 2 and the inside air introduction port 3 is introduced, guided from the intake unit 4 into the storage case 7, and to the evaporator 6 disposed in the storage case 7. Then, the air is cooled down into the air conditioning unit 10 and part or all of the cold air is heated by the heater core 8 to become hot air, mixed with unheated cold air, adjusted to an appropriate temperature, and vented. 11. From the selected outlet of the foot outlet 12 and the defrost outlet 13, the air is blown into the vehicle interior through a duct on the vehicle body side.

  FIG. 3 is a perspective view of the air conditioning unit 10 of the vehicle air conditioner 1 according to the embodiment of the present invention, and FIG. 4 is a cross-sectional view of the air conditioning unit 10 of the vehicle air conditioner 1 according to the embodiment of the present invention.

  This air conditioning unit 10 is a device that controls the temperature of the blown air and blows out air that has a plurality of outlets and is temperature-conditioned as appropriate. The air conditioning unit 10 includes at least an air conditioning case 15 through which air flows and a heater core 8 housed in the air conditioning case 15. The air conditioning case 15 is open at the bottom and serves as a cold air inlet 18 and is fitted to the cold air outlet 17 of the storage case 7 described above.

  An air mix door 20 and an auxiliary door 21 are provided above the cold air inlet 18, and the doors 20 and 21 are connected by a lever 22 so as to be moved in conjunction with each other. If the air mix door 20 and the auxiliary door 21 are positioned as shown by the solid line in FIG. 4, the cold air passage 24 is closed and the heating passage 25 is opened, so that all of the cold air flows to the heater core 8, When the maximum heating that is warmed is performed, and is rotated like a two-dot chain line, the cold air passage 24 is opened, the heating passage 25 is closed, and the entire cooling air flows through the cold air passage 24. When the air mix door 20 and the auxiliary door 21 are in an intermediate position, both the passages 24 and 25 are appropriately opened, and the mixing passage 28 where the cold air flowing through the cold air passage 24 and the warm air flowing through the heating passage 25 merge. The temperature is adjusted by mixing the cool air and the warm air at.

  The mixing passage 28 has a vent outlet 11 for blowing conditioned air toward the occupant's upper body, a defrost outlet 13 for blowing warm air to the front window, and a foot outlet 12 for blowing conditioned air to the occupant's feet. Is formed. These outlets are collectively referred to as conditioned air outlets.

  An opening / closing door 51 is disposed at the vent outlet 11 to perform opening / closing control of the vent outlet 11. A switching door 52 is disposed at the foot outlet 12 and the defrost outlet 13 to control opening and closing of the foot outlet 12 and the defrost outlet 13. For example, in the defrost mode, the vent outlet 51 is closed by the open / close door 51, the foot outlet 12 is closed by the switching door 52, and the defrost outlet 13 is opened by the switching door 52. Thereby, the air introduced into the vehicle air conditioner 1 by the blower 5 is blown out from the defrost outlet 13. Note that a duct on the vehicle body side is usually connected to each of the vent outlet 11, the foot outlet 12, and the defrost outlet 13.

  Here, the vent outlet 11 is provided with a net 111 that rectifies the air flow passing therethrough and suppresses the generation of noise, and the net 111 has a first lining as will be described in detail later. 113 and the second lining 114 are attached. There is no particular limitation on the material of the net part, but it is sufficient if it has resistance to temperature changes and aging deterioration in the passenger compartment, and thin metal wires, resin wires, and the like are used.

  Similarly, the defrost outlet 13 is provided with a net 131 that rectifies the passing air flow and suppresses the generation of noise. The net 131 is upstream of the air flow, as will be described in detail later. The first lining 133 on the side and the second lining 134 on the downstream side are attached. There is no particular limitation on the material of the net 131.

  FIG. 1 is a perspective view of a mesh unit attaching means of a vehicle air conditioner according to an embodiment of the present invention. In particular, the defroster outlet 13 among the conditioned air outlets will be described as an example.

  A first lining 133 serving as a first mesh portion holding member is provided on a surface (substantially horizontal surface in the drawing) perpendicular to the flow direction of the flange-shaped flange portion 132 forming the defrost outlet 13.

  Here, as for the dimension of 133 of the 1st lining, the inner periphery (opening part) of a surface direction is substantially the same as the outer periphery (opening part) of the defrost blower outlet 13, and the outer periphery of a surface direction has the net part 131 mentioned later. It has a width necessary for supporting.

  The material of the first lining 133 is preferably a slightly rigid foamed polyethylene, but is not limited thereto. The first lining 133 is fixed to the flange portion 132 with an adhesive.

  Next, a net portion 131 is provided on the surface of the first lining 133 opposite to the flange 132 side (the surface on the downstream side of the blown air flow). The dimension of the net part 131 in the surface direction is larger than the opening of the first lining 133 and smaller than the outer periphery of the first lining 133, and can completely cover the vent outlet 11. It is a dimension.

  Next, a second lining 134 as a second mesh portion holding member is provided on the opposite side of the mesh portion 131 from the first lining 133. The dimension of the 2nd lining 134 is a surface direction dimension comparable as the 1st lining 133, and the inner periphery (opening part) of a surface direction is substantially the same as the outer periphery (opening part) of the defrost blower outlet 13. FIG. Further, the length (thickness) in the direction orthogonal to the surface direction is approximately the same for the first lining 133 and the second lining 134.

  The material of the second lining 134 is preferably a soft polyurethane foam as compared with the first lining 133, but is not limited thereto.

  Here, a method for assembling such a net attachment means will be described.

  FIG. 5 is a cross-sectional view of an example of the mesh unit attaching means of the air conditioner according to the embodiment of the present invention, in which (a) is not misaligned between the vehicle air conditioner side and the vehicle body side duct side. (B) shows the case where there is a positional deviation.

  In the assembling method, first, the net 131 is placed on the first lining 133 which is a first net holding member placed substantially horizontally. At this time, the net portion 131 is placed so as to cover the entire inner periphery of the first lining 133 and to have its end side located inward in the surface direction with respect to the outer peripheral edge of the first lining 133. That is, the net 131 is placed at a position having a margin in the surface direction of the first lining 133.

  Next, the 2nd lining 134 which is a 2nd net | network part holding member is affixed on the 1st lining 133. FIG. At this time, in order to expose the adhesive layer of the second lining 134, the protective seal (release paper) is peeled off in advance, and then the second lining 134 is attached to the first lining 133. By this affixing operation, the first lining 133 and the second lining 134 are firmly bonded to each other at the above-described blank portion, and at the same time, the edge of the net portion 131 is connected to the first lining 133 and the second lining 134. Is securely clamped between.

  The net part with the lining that has been sub-assembled in this way is attached to the flange part 132 around the defrost outlet 13. At this time, in order to expose the adhesive layer of the first lining 133, the protective seal (release paper) is peeled off in advance, and then the net with lining is attached to the flange portion 132. In pasting, care should be taken not to block the inner periphery of the defrost outlet 13 with the first lining 133 or the second lining 134. By not closing the inner periphery of the defrost outlet 13 with the first lining 133 or the second lining 134, it is possible to prevent the ventilation resistance from increasing when the conditioned air is blown out.

  Further, when the sub-assembled net with lining is attached to the flange 132 around the defrost outlet 13, the flange 132 does not necessarily have to be in a horizontal posture. By attaching the sub-assembled net part with the lining to the flange part 132, the net part 131 is simultaneously attached to the flange part 132 together with the first lining 133 and the second lining 134. Thereby, it becomes unnecessary to make the flange part 132 into a substantially horizontal posture, and productivity can be improved.

  The first lining 133, the second lining 134, and the net 131 to the defrost opening 13 have been described using a case where an adhesive is provided on one side of the first lining 133 and the second lining 134. The present invention is not limited to this, and for example, the first lining 133 and the second lining 134 may have adhesives on both sides.

  Further, in this state, the vehicle air conditioner 1 is incorporated into the vehicle. On the vehicle side, there is a differential duct DD for allowing conditioned air to flow to a desired location, and an opening having a size approximately similar to that of the defrost outlet 13 and a flange surface 135 around the opening. Yes.

  The first lining 133, the second lining 134, and the net portion 131 are attached to the flange portion 132 of the defrost outlet 13 by the above-described process. When the vehicle air conditioner 1 is assembled to the vehicle, the surface of the second lining 134 opposite to the flange portion 132 comes into contact with the flange surface 135 of the differential duct DD, and the first lining 133 and the second lining 134. In addition, the first lining 133 and the second lining 134 are compressed along the air blowing direction so that a predetermined compression ratio is obtained. Thus, by compressing the 1st lining 133 and the 2nd lining 134, even if air blows off from the defrost blower outlet 13 to the differential duct DD, it is prevented that air leaks around the differential duct DD.

  In this way, the assembly of the net 111 is completed, but a deviation may occur between the vehicle air conditioner 1 and the differential duct DD from the beginning of the assembly. This is because the vehicle air conditioner 1 and the differential duct DD are misaligned, or the vehicle air conditioner 1 and the differential duct DD, which are resin parts, are slightly deformed. In that case, when the net 131 is simply sandwiched between the two linings, the two linings are deformed in the surface direction due to the positional deviation between the vehicle air conditioner 1 and the differential duct DD, and the net 131 is also deformed. There is a risk. If the mesh portion 131 is deformed, such as undulation, the rectifying effect of the blown air may be reduced, or the mesh portion itself may be vibrated by the blown air, which may cause noise.

  However, the net portion 131 of the present embodiment includes a first lining 133 having a relatively hard material attached to the flange portion 132 and a second lining having a relatively soft material attached to the first lining 133. 134. For this reason, even if the positional deviation in the surface direction between the defroster outlet 13 and the differential duct DD occurs, the shape of the net 131 is held by the first lining 133 as shown in FIG. Deformation such as undulation is suppressed. Further, the positional deviation in the surface direction is absorbed by the second lining 134, and the air blown out from the defrost outlet 13 to the differential duct DD is prevented from leaking around the differential duct DD.

  In addition, as the conditioned air outlet, not only the defrost outlet 13 but also the vent outlet 11 can be dealt with in the same manner. That is, by sandwiching the net 111 between the first lining 113 and the second lining 114, it is possible to obtain a noise prevention effect while preventing deformation of the net 111.

  Moreover, the same response can be taken for the foot outlet 12. However, it is not necessary to take noise prevention measures for all the conditioned air outlets, and it is also possible to deal only with places where noise is high. Generally, the defroster outlet 13 is used as a noisy outlet. This is because a fast flow rate is required to ensure the window clearness of the front window. Therefore, it is desirable to apply the present invention to the defrost outlet 13.

  In the above description, the upstream side of the air flow is the first lining, and the downstream side is the second lining. Conversely, the downstream side may be the first lining and the upstream side may be the second lining. If it does in this way, since an upstream side is easy to deform | transform, a mesh part will be supported by the 1st lining of the duct side of a vehicle main body, and a deformation | transformation of a mesh part will be prevented. Such a configuration may be effective depending on the installation mode of the vehicle air conditioner.

  Further, although the first mesh portion holding member has been described as the first lining 133, the first mesh portion holding member may be a member that can be bonded to the flange portion 132 and the second mesh portion holding member. For example, it is a resin material (polypropylene, polyethylene, ABS resin, EPDM rubber, NBR rubber, etc.). In constructing the sub-assembled net part with the lining, the first net part holding member is not necessarily a lining, and the degree of freedom in design can be improved. Further, the second mesh portion holding member may be a member that can be bonded to the flange portion 132 and the first mesh portion holding member. The degree of design freedom can be improved.

  Furthermore, you may comprise a 1st net | network part holding member and a 2nd net | network part holding member by members other than lining. The degree of design freedom can be improved. In the case of this embodiment, it is desirable to appropriately provide a lining on the downstream side of the second mesh portion holding member. When the vehicle air conditioner 1 is attached to the vehicle, the lining is appropriately compressed by the second mesh portion holding member and the duct DD to effectively prevent leakage of air blown from the air outlet. be able to.

  Furthermore, since the vehicle equipped with such a vehicle air conditioner 1 can also improve productivity, the evaluation of the vehicle as a whole is enhanced, and great added value is generated.

DESCRIPTION OF SYMBOLS 1 Vehicle air conditioner 10 Air conditioning unit 11 Vent outlet 111 Net part 12 Foot outlet 113 First lining (1st net holding member)
114 Second lining (second mesh portion holding member)
13 Defrost outlet 131 Net part 133 1st lining (1st net part holding member)
134 Second lining (second mesh part holding member)

Claims (6)

A noise preventing net provided near the conditioned air outlet of the vehicle air conditioner;
A first net holding member fixed to the conditioned air outlet;
A second net holding member fixed to the first net holding member;
Have
A net part attaching means for a vehicle air conditioner, wherein an end of the net part is sandwiched between the first net part holding member and the second net part holding member. The said second net | network part holding member is a lining which has elasticity, The net | network part attachment means of the air conditioner for vehicles of Claim 1 characterized by the above-mentioned. The said 1st net | network part holding member is a lining which has elasticity, The net | network part attachment means of the air conditioner for vehicles of Claim 1 or Claim 2 characterized by the above-mentioned. The vehicular air conditioning according to any one of claims 1 to 3, wherein the first mesh portion holding member is relatively less deformable than the second mesh portion holding member. Means for attaching the mesh part of the device.   The vehicle air conditioner which has the net | network part attachment means in any one of Claims 1 thru | or 4.   A vehicle comprising the vehicle air conditioner according to claim 5.

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