JP6607108B2 - Air conditioner for vehicles - Google Patents

Description

  The disclosure in this specification relates to a vehicle air conditioner that houses a heat exchanger inside a case formed by combining a plurality of case members.

  The vehicle air conditioner disclosed in Patent Document 1 has an air conditioning case formed by combining a fixed side case and a detachable side case. When the detachable side case is assembled to the fixed side case, the first divided opening of the fixed side case and the second divided opening of the detachable side case are aligned with each other to form the case opening. The heat exchange medium pipe of the evaporator accommodated in the air conditioning case passes through the case opening and extends from the inside of the air conditioning case to the outside.

JP 2008-105641 A

  The structure in which two cases are combined at the position of the heat exchange medium pipe as in Patent Document 1, the evaporator is installed in the fixed side case, and then the removable case is assembled in the fixed side case. This makes it easy to install an evaporator.

  In the apparatus of Patent Document 1, since the air conditioning case is divided at the position of the heat exchange medium piping of the evaporator, it is easy to install the evaporator in the air conditioning case. However, it is necessary to set the fitting part of the two cases at a position where the heat exchange medium piping passes through the case, and the degree of freedom for setting the forming part of the fitting part becomes small or the fitting part has a complicated shape. There is a problem that can be. In addition, since the fitting portion is easily deformed due to the complicated shape of the fitting portion, a problem may occur in the ease of assembling when assembling the two cases. In addition, water condensed on the heat exchange medium piping is likely to flow down through the fitting portion due to capillary action. These problems are caused by the structure in which the air conditioning case is divided at the position of the heat exchange medium piping.

  In view of such problems, the object of the disclosure in this specification is to install the heat exchanger in the air conditioning case without adopting a configuration in which piping extending from the heat exchanger is passed through the division position of the air conditioning case. It is providing the vehicle air conditioner which can be performed.

  A plurality of aspects disclosed in this specification adopt different technical means to achieve each purpose. In addition, the reference numerals in the parentheses described in the claims and in this section are examples showing the correspondence with the specific means described in the embodiments described later as one aspect, and limit the technical scope. is not.

One of the disclosed vehicle air conditioners has an air passage (10, 12, 15) through which air to be blown into the vehicle interior is combined, and a plurality of case members (2, 3; 102, 103) are combined. An air conditioning case (1) formed by a heat exchange section (110) through which a heat medium flows, and a pipe connection section (113) to which a heat medium outflow pipe and an inflow pipe are coupled. A heat exchanger (11) that is installed inside the air conditioning case and exchanges air passing through the heat exchange section with the heat medium for air conditioning, and one of the plurality of case members so as to face the pipe connection section. Piping opening (21) provided in one predetermined case member (2; 102), and for installation having a size capable of inserting a heat exchanger provided in the predetermined case member into the predetermined case member In the opening (20) and a predetermined case member Includes a guide portion that is kicked from the side of the installation opening in a predetermined case member guide portion having a guide surface extending toward the rear side wall (23) and (2 2), a,
The heat exchanger includes an air passing surface (110a) of the heat exchanging portion corresponding to an inlet surface or an outlet surface when air passing through the heat exchanging portion passes through the heat exchanging portion, and the heat exchanger has an opening for installation. The air passage surface is accommodated in a predetermined case member in a posture inclined with respect to the guide surface so that the portion closer to the portion is separated from the guide portion than the portion closer to the back side wall, and the guide portion is first wall portion for supporting the side surface of the heat exchanger (220) and Ru contact wall portion der connecting second wall portion forming the step is located inside the (221) relative to the first wall portion.

  According to this vehicle air conditioner, the predetermined case member having a size that allows the heat exchanger to be inserted into the guide portion provided in one predetermined case member among the plurality of case members forming the air conditioning case. And an opening for installation. The guide portion has a guide surface extending from the installation opening side toward the back side wall. For this reason, when installing a heat exchanger in a predetermined case member, a part of the heat exchanger can be made to enter the inside through the opening for installation so as to be along the guide surface. In a state where the heat exchanger is housed in one predetermined case member, the heat exchanger is air-filled so that the portion closer to the installation opening is separated from the guide portion than the portion closer to the back side wall. The passage surface is inclined with respect to the guide surface. This allows pipe connection by moving the part closer to the installation opening away from the guide surface from the state where the heat exchanger enters the back side wall of the predetermined case member while keeping the air passage surface along the guide surface. The heat exchanger can be accommodated in a posture in which the portion faces the opening for piping.

Therefore, it is possible to form the air-conditioning cases by assembling the other case member on one of the case members that can accommodate this way the heat exchanger. As mentioned above, according to this vehicle air conditioner, a heat exchanger can be installed in an air-conditioning case, without employ | adopting the structure which passes the piping etc. which extend from a heat exchanger to the division | segmentation position of an air-conditioning case.
Moreover, one of the disclosed vehicle air conditioners has an air passage (10, 12, 15) through which air blown into the passenger compartment flows, and a plurality of case members (102, 103) are combined. An air conditioning case having an air conditioning case (1) formed, a heat exchange section (110) through which a heat medium flows, and a pipe connection section (113) to which a heat medium outflow pipe and an inflow pipe are coupled. A heat exchanger (11) that is installed inside the case and exchanges air passing through the heat exchange section with the heat medium for air conditioning, and one of the plurality of case members so as to face the pipe connection section. A piping opening (21) provided in a predetermined case member (102), and an installation opening (21) provided in the predetermined case member and having a size that allows a heat exchanger to be inserted into the predetermined case member. 20) and provided in a predetermined case member Provided with; (122 22), and a guide portion guiding unit having a guide surface extending toward the rear side wall (23) from the side of the installation opening in a predetermined case member
The heat exchanger includes an air passing surface (110a) of the heat exchanging portion corresponding to an inlet surface or an outlet surface when air passing through the heat exchanging portion passes through the heat exchanging portion, and the heat exchanger has an opening for installation. The air passage surface is accommodated in a predetermined case member in a posture inclined with respect to the guide surface so that the portion closer to the portion is separated from the guide portion than the portion closer to the back side wall, and the heat exchanger is The air passage surface is tilted with respect to the guide surface so that the part on the one end side near the pipe connection part is separated from the guide part than the part on the other end side. Yes.

It is the rear view which looked at the air-conditioner for vehicles of a 1st embodiment to vehicles back. It is a side view of a vehicle air conditioner. It is the fragmentary sectional view showing the inside of the 1st case member in an air-conditioning case. It is the fragmentary sectional view which looked at the IV-IV cross section of FIG. 3 in the arrow direction. It is the fragmentary sectional view which showed the modification of the guide part in 1st Embodiment. It is drawing which shows the state which made the evaporator approach the inside of a 1st case member along a guide part. It is the fragmentary figure seen from the front which showed the opening part for piping in the 1st case member. It is drawing which shows the state which installed the evaporator in the inside of the 1st case member. It is drawing which shows the state which made the evaporator approach the inside of a 1st case member along the guide part in the vehicle air conditioner of 2nd Embodiment. It is drawing which shows the state which installed the evaporator in the inside of the 1st case member in the vehicle air conditioner of 2nd Embodiment.

  Hereinafter, a plurality of modes for carrying out the present disclosure will be described with reference to the drawings. In each embodiment, parts corresponding to the matters described in the preceding embodiment may be denoted by the same reference numerals, and redundant description may be omitted. When only a part of the configuration is described in each mode, the other modes described above can be applied to the other parts of the configuration. Not only combinations of parts that clearly indicate that the combination is possible in each embodiment, but also a combination of the embodiments even if they are not clearly specified unless there is a problem with the combination. It is also possible.

(First embodiment)
The vehicle air conditioner 100 of 1st Embodiment is demonstrated with reference to FIGS. As shown in FIG. 1, the vehicle air conditioner 100 includes an air conditioning case 1 that forms an air passage therein and accommodates various functional components. The air conditioning case 1 is formed by combining a plurality of case members. The air conditioning case 1 is formed by connecting at least the first case member 2 and the second case member 3 in the vertical direction at the fitting portion 30. The first case member 2 is disposed on the upper side of the vehicle, and the second case member 3 is disposed on the lower side of the vehicle.

  The first case member 2 and the second case member 3 form a fitting portion 30 that extends in the vehicle left-right direction. The fitting portion 30 is, for example, a portion in which a protrusion formed on the coupling end surface of one case member and a groove formed on the coupling end surface of the other case member are fitted.

  The vehicle air conditioner 100 is installed, for example, in the posture shown in FIGS. 1 and 2 behind the dash panel, which is a partition plate separating the engine room and the vehicle compartment, on the back side of the front portion of the vehicle compartment. As shown in FIG. 1, the vehicle air conditioner 100 is roughly divided into two parts, a blower unit 100 a and an air conditioner unit 100 b, arranged side by side.

  The blower unit 100a has a function of sucking the air in the vehicle interior or the air outside the vehicle interior inside the air conditioning case 1, and includes an inside / outside air switching box in the upper part. The blower unit 100a includes an electric blower. The blower has a centrifugal multiblade fan and a fan driving motor. The centrifugal multiblade fan is disposed in the scroll casing. A duct portion constituting a flow path extending from the outlet of the scroll casing is provided on the air flow downstream side of the scroll casing. This duct portion forms a blow passage 10 for introducing blown air blown from the blower into the evaporator 11. The outlet part of the blower unit 100a is connected to the inlet part of the air conditioning unit 100b by this duct part.

  The air conditioning unit 100 b includes a heat exchanger such as an evaporator 11 and a heater core 14, an air mix door 13, and outlet switching doors 17 and 18 inside the air conditioning case 1. The air-conditioning case 1 is formed of a plurality of case members made of a resin molded product having elasticity to some extent and excellent in strength, such as polypropylene. The plurality of case members are assembled after the evaporator 11 and the heat exchanger of the heater core 14 and the like are housed in predetermined positions, and are integrated by engaging means such as a snap fit, metal spring clips, fastening means such as screws, and the like. Combined to form the air conditioning case 1.

  In the first embodiment, the air conditioning case 1 is integrally formed with the scroll casing and the duct portion. A part of the scroll casing and the duct part on the upper side of the vehicle is integrally formed by the first case member 2, and the remaining part of the scroll casing and the duct part on the lower side of the vehicle is integrally formed by the second case member 3.

  The first case member 2 is one predetermined case member among a plurality of case members constituting the air conditioning case 1. In a state in which the evaporator 11 is housed in the first case member 2, an outflow pipe, an inflow pipe, and a pipe connection portion 113 extending from the evaporator 11 are also housed in the first case member 2.

  The outflow pipe, the inflow pipe, and the pipe connection portion 113 are opposed to the pipe opening 21 provided in the first case member 2. As illustrated in FIGS. 6 to 8, the piping opening 21 is a through-hole penetrating in the vehicle front-rear direction in the first case member 2. The piping opening 21 is an opening larger than the outer shape of the pipe connecting portion 113. When the piping opening 21 is viewed from the front of the vehicle in a state where the evaporator 11 is housed in the first case member 2, at least a part of the outflow piping, the inflow piping, and the piping connection portion 113 through the piping opening 21. Can be visually observed.

  An elastically deformable seal member 113 a that contacts the inner surface of the first case member 2 is provided on the outer periphery of the pipe connection portion 113. The seal member 113a is a sealing member formed of an elastomer such as natural rubber, synthetic rubber, or urethane. The seal member 113a contacts the inner surface of the first case member 2, for example, the inner periphery of the piping opening 21 or a surface formed around the inner periphery, in a state where the evaporator 11 is accommodated in the first case member 2. ing. When the seal member 113a comes into contact with the inner surface of the first case member 2 in an elastically deformed state, it is possible to prevent the air flowing down the blower passage 10 from leaking from the periphery of the pipe connection portion 113 to the outside of the air conditioning case 1.

  The first case member 2 includes an installation opening 20 having a size that allows the evaporator 11 to be inserted into the first case member 2. As shown in FIGS. 6 and 8, the installation opening 20 opens downward in the first case member 2 on the front side of the vehicle. The installation opening 20 is an opening that serves as an insertion port when the evaporator 11 is installed inside the first case member 2.

  On the inner wall of the first case member 2, a guide portion having a guide surface extending from the installation opening 20 side toward the back side wall 23 of the first case member 2 is provided. The rear side wall 23 is a wall portion with which the end 112 close to the pipe connection portion 113 in the evaporator 11 directly or indirectly contacts. The one end 112 corresponds to, for example, a header tank that becomes the leading side of the evaporator 11 when the evaporator 11 is installed in the first case member 2. On the other hand, the other end 111 corresponds to a header tank on the rear side of the evaporator 11.

  The guide portion has a predetermined length from the inner edge portion of the installation opening 20 toward the back side wall 23. As shown in FIGS. 3, 4, 6, and 8, the guide portion includes a first wall portion 220 that supports the side surface of the evaporator 11, and a step that is located on the inner side with respect to the first wall portion 220. And a second wall portion 221 forming the connection wall portion 22 connecting the second wall portion 221 and the second wall portion 221. Accordingly, an air passage formed between the first wall 220 and the first wall 220 inside the first case member 2 is formed between the second wall 221 and the second wall 221. The passage width dimension in the lateral direction of the vehicle is larger than the air passage.

  The guide surface is the surface of the connecting wall portion 22. The guide portion may be constituted by a connecting wall portion 22 that extends from the inner edge portion of the installation opening 20 to the back side wall 23, or may be constituted by a partially provided connecting wall portion 22. In addition, the guide portion may be configured by a connecting wall portion 22 that is provided for a predetermined length from the inner edge portion of the installation opening 20 toward the back side wall 23 and extends halfway to the back side wall 23.

  As shown in FIG. 4, the guide surface of the communication wall portion 22 has a surface shape that follows the end portion of the evaporator 11, for example, the surface of the side plate that reinforces the heat exchanging portion 110. The side plate is a reinforcing member provided along the refrigerant pipe at the end of the heat exchange unit 110. In this case, it is preferable that the guide surface of the communication wall portion 22 supports the side plates provided on both sides of the evaporator 11 as a whole.

  Moreover, you may comprise a guide part by the rib 122 which protrudes inside from the side wall of the 1st case member 2, as shown in FIG. In this case, the step for forming the guide surface is not formed, and the surface of the rib 122 on the evaporator 11 side becomes the guide surface. The side walls of the first case member 2 generally support the side plates provided on both sides of the evaporator 11.

  The distance W2 between the wall 2a formed from the piping opening 21 to the installation opening 20 and the guide surface of the connecting wall 22 is larger than the dimension W1 in the air passage direction in the evaporator 11 including the pipe connection 113. It is set large. FIG. 6 shows a locus L1 drawn by an end portion on the pipe connecting portion 113 side by a two-dot chain line when the evaporator 11 is installed through the installation opening 20 into the first case member 2. . The distance between the locus L1 and the air passage surface 110a corresponds to the dimension W1.

  When installing the evaporator 11 in the first case member 2, as shown in FIG. 6, the evaporator 11 is inserted into the installation opening 20 from one end 112, so that the first case member 2 It is pushed toward the back side wall 23. At this time, the evaporator 11 is caused to enter the back side wall 23 side with a part of the air passage surface 110a or the side plate along the guide surface of the connecting wall portion 22. Since the distance W2 is larger than the dimension W1, the evaporator 11 can be allowed to enter smoothly without contacting the inner surface of the first case member 2 at the end on the pipe connecting portion 113 side. it can.

  When it is made to approach until one end 112 of the evaporator 11 reaches the back side wall 23, the posture of the evaporator 11 is changed so that the other end 111 side of the evaporator 11 is rotationally moved to the piping opening 21 side. By this movement, the seal member 113a comes into contact with the inner surface of the first case member 2. Furthermore, the evaporator 11 is installed inside the first case member 2, and the air passage surface 110 a is arranged such that the portion on the other end 111 side is separated from the connecting wall portion 22 than the portion on the one end 112 side. The posture is inclined at a predetermined angle with respect to the guide surface of the communication wall portion 22. In this state, the one end 112 is in contact with the back side wall 23 and the first wall 220 is in direct or indirect contact with both side surfaces of the evaporator 11, so that the evaporator 11 is supported by the first case member 2. Has been. Next, the second case member 3 is assembled to the first case member 2 so as to form the fitting portion 30.

  As shown in FIGS. 1 and 8, the third case member 4 is fixedly attached to the first case member 2 from the outside at a position corresponding to the opening 21 for piping. Thereby, the vehicle air conditioner 100 as illustrated in FIGS. 1 and 2 can be manufactured.

  The third case member 4 is fixed to the first case member 2 by screwing means such as screws and bolts. The third case member 4 is an annular member including a flange portion 42 that surrounds the periphery of the through hole portion 40. The through hole portion 40 forms an opening through which a pipe from the outside connected to the pipe connecting portion 113 can be inserted. This external pipe is a pipe constituting a refrigeration cycle installed in the engine room, for example, a pipe leading to a condenser and a pipe leading to a compressor. The piping that leads to the condenser is connected so as to communicate with the inflow piping at the piping connection portion 113, and the piping that leads to the compressor is connected so as to communicate with the outflow piping at the piping connection portion 113.

  The flange portion 42 has a size and shape that can cover the inner peripheral edge of the piping opening 21 from the outside. A seal member 41 is provided on the entire circumference of the surface located inside the outer peripheral edge of the flange portion 42. The seal member 41 is made of an elastomer such as natural rubber, synthetic rubber, or urethane. The 3rd case member 4 contacts in the state which the seal member 41 elastically deformed around the position corresponding to the through-hole part 40 in the above-mentioned dash panel. Thereby, the air conditioning case 1 is connected to the dash panel.

  Next, the internal configuration of the vehicle air conditioner 100 will be described in more detail. A blower passage 10 extending in the vehicle width direction is provided at a front portion in the air conditioning case 1, and air blown from the blower flows down toward the evaporator 11 in the blower passage 10. Inside the air conditioning case 1, the evaporator 11 is arranged so as to cross the entire area of the passage immediately after the air passage 10. The evaporator 11 is a cooling heat exchanger that cools air by absorbing the latent heat of evaporation of the refrigerant flowing through the refrigeration cycle from the air.

  The vehicle air conditioner 100 is an apparatus capable of installing a heat exchanger in an air conditioning case without adopting a configuration in which piping extending from the heat exchanger is passed through a piping opening formed by a plurality of case members in the air conditioning case. It is. In this embodiment, the case where the heat exchanger of the structure connected with piping outside the air-conditioning case 1 is the evaporator 11 is illustrated.

  The evaporator 11 includes, for example, a heat exchange unit 110 having a plurality of refrigerant tubes and outer fins arranged at intervals, and a header tank connected to both ends of the plurality of refrigerant tubes in the heat exchange unit 110. And a pipe connecting portion 113. The pipe connection portion 113 is connected to an inflow pipe through which refrigerant as a heat medium flows into the evaporator 11 and an outflow pipe from which refrigerant flows out of the evaporator 11. The pipe connection part 113 is a pipe joint part to which a pipe constituting a circuit provided outside the air conditioning case 1 can be connected. Further, the expansion valve 5 may be connected to the piping connection portion 113, or the piping connection portion 113 formed integrally with the expansion valve 5 may be configured.

  The header tanks are provided at both ends of the heat exchange unit 110 in the refrigerant flow direction. The inflow piping is located on one end side of the evaporator 11 and is connected to an inflow side header tank corresponding to a refrigerant inflow portion in the evaporator 11. The outflow pipe is located on one end side of the evaporator 11 and adjacent to the inflow side header tank, and is connected to the outflow side header tank corresponding to the refrigerant outflow portion in the evaporator 11. An insulator for preventing air leakage may be provided between each header tank and the wall portion of the air conditioning case 1.

  The air exchanged by the blower flows through the heat exchange unit 110. Therefore, the evaporator 11 includes the air passing surface 110a of the heat exchanging portion corresponding to the entrance surface or the exit surface when the air passing through the heat exchanging portion 110 passes through the heat exchanging portion 110. The air passage surface 110a has a rectangular flat plate shape, and air passes in the thickness direction of the rectangular flat plate shape. The heat exchange unit 110 is a portion that extends so as to spread in a direction orthogonal to the air passage direction. The air passage surface 110a is a virtual surface that is penetrated in the vertical direction by the flow of air that exchanges heat with the heat medium when passing through the heat exchanging unit 110, and has an uneven end formed by a refrigerant tube or an outer fin. Part. Therefore, the air passage surface 110a is not a flat surface formed at the end of the heat exchange unit 110 in the air flow direction. The heat exchange unit 110 is arranged in a posture that is inclined with respect to the vertical direction. Further, the evaporator 11 is installed inside the air conditioning case 1 in an inclined posture so that the upper end of the heat exchange unit 110 is positioned on the vehicle front side with respect to the lower end.

  A heater core 14 is installed on the downstream side of the air flow of the evaporator 11 or on the rear side of the vehicle. The heater core 14 reheats the cold air that has passed through the evaporator 11, and is a heat exchanger that heats the air by using high-temperature engine cooling water as a heat source.

  A cold air passage 12 is provided inside the air conditioning case 1 and on the vehicle rear side of the evaporator 11. Cool air that has been cooled by passing through the heat exchanger 110 of the evaporator 11 flows through the cool air passage 12. A warm air passage 15 is provided inside the air conditioning case 1 and extending from the vehicle rear side to the vehicle upper side of the heater core 14. The hot air passage 15 flows through the cold air passage 12 and then the hot air heated through the heater core 14 flows.

  An air inflow passage to the heater core 14 is opened and closed at a position behind the evaporator 11 and in front of the heater core 14 to adjust the air volume ratio between the air passing through the heater core 14 and the air not passing through the heater core 14. An air mix door 13 is installed. The air mix door 13 is a door that includes a plate-like door body that rotates about a rotation axis, and that adjusts the degree of opening of the passage according to the rotation position of the door body. The air mix door 13 can be, for example, a butterfly door or a cantilever door. The air mix door 13 may be configured by a slide type door that adjusts the degree of opening of the passage by translating the door body by meshing a rack and a pinion provided on the door body, for example.

  An air mixing unit 16 is provided at a downstream side of the cold air passage 12 and the hot air passage 15 to combine the cold air from the cold air passage 12 and the hot air from the heater core 14 to mix the cold air and the hot air. ing. The air mixing unit 16 is an area in a predetermined range that communicates with both the downstream side of the cold air passage 12 and the downstream side of the hot air passage 15. The conditioned air whose temperature has been adjusted by the air mixing unit 16 is blown out to a predetermined location in the passenger compartment through a defroster passage 170, a face passage 171 and a foot passage 180 provided further downstream.

  A defroster passage 170 that communicates with the air mixing unit 16 and extends upward is provided in an upper portion of the air conditioning case 1 and on the front side of the vehicle. The defroster passage 170 communicates with a defroster outlet opening in the vehicle interior via a defroster duct. The defroster outlet is open toward the inner surface of the front window glass. A face passage 171 that communicates with the air mixing section 16 is provided in a portion adjacent to the rear side of the vehicle from the defroster passage 170 in the upper part of the air conditioning case 1. The face passage 171 communicates with a face outlet opening in the vehicle interior via a face duct. The face outlet blows out air-conditioned air toward the passenger's upper body.

  The defroster passage 170 and the face passage 171 can be opened and closed by the outlet switching door 17. The air outlet switching door 17 is the same door as the air mix door 13 and controls both the defroster passage 170 and the face passage 171 to be in an open state depending on the rotational position, or sets one to an open state and the other to a closed state. And can be controlled.

  A foot passage 180 that communicates with the air mixing unit 16 is provided in a portion of the air conditioning case 1 on the vehicle rear side. The foot passage 180 communicates with a foot outlet opening in the vehicle interior via a foot duct. The foot outlet blows out air-conditioned air toward the passenger's lower body. The foot passage 180 can be opened and closed by the outlet switching door 18. Further, the upstream passage that communicates with the defroster passage 170 and the face passage 171 can be opened and closed by the outlet switching door 17. The outlet switching door 18 is a door similar to the air mix door 13. Depending on the rotational position, the outlet switching door 18 controls the upstream passage and the foot passage 180 leading to both the defroster passage 170 and the face passage 171 to open, or opens one and closes the other. And can be controlled. Further, the air outlet switching doors 17 and 18 may be configured by, for example, slide type doors that adjust the degree of opening of the passage by translating the door body by meshing a rack and a pinion provided in the door body. .

  Below, the effect which the vehicle air conditioner 100 of 1st Embodiment brings is demonstrated. The vehicle air conditioner 100 includes an air conditioning case 1 formed by combining a plurality of case members, and an evaporator 11 having a pipe connecting portion 113 to which a heat medium outflow pipe and an inflow pipe are coupled. Prepare. The first case member 2, which is a predetermined case member among the plurality of case members, includes a guide portion having a guide surface extending from the installation opening 20 side toward the back side wall 23. The evaporator 11 includes the first case member 2 in such a posture that the air passage surface 110a is inclined with respect to the guide surface so that the portion closer to the installation opening 20 is separated from the guide portion than the portion closer to the back side wall 23. Is housed inside.

  According to the vehicle air conditioner 100, the predetermined size of the guide unit provided in one predetermined case member of the plurality of case members forming the air conditioning case 1 and the evaporator 11 can be inserted. And an installation opening 20 provided in the case member. The guide portion has a guide surface extending from the installation opening 20 side toward the back side wall 23. For this reason, when installing the evaporator 11 in a predetermined case member, the air passage surface 110a of the evaporator 11 can be made to enter the inside through the installation opening 20 so as to be along the guide surface. Then, in a state where the evaporator 11 is housed in one predetermined case member, the evaporator 11 is arranged such that the part closer to the installation opening 20 is separated from the guide part than the part closer to the back side wall 23. Further, the air passage surface 110a is inclined with respect to the guide surface. Thereby, the part near the opening 20 for installation is moved away from the guide surface from the state in which the evaporator 11 enters the back side wall 23 of the predetermined case member while keeping the air passage surface 110a along the guide surface. it can. Therefore, the evaporator 11 can be accommodated in a posture in which the pipe connecting portion 113 faces the pipe opening 21.

  Therefore, the air conditioning case 1 can be formed by assembling another case member to one case member that can accommodate the evaporator 11 in this way. As described above, according to the vehicle air conditioner 100, the evaporator 11 can be installed in the air conditioning case 1 without adopting a configuration in which piping extending from the evaporator 11 is passed through the division position of the air conditioning case 1. .

  Moreover, according to the vehicle air conditioner 100, since the structure which passes piping etc. extended from the evaporator 11 to the division | segmentation position of the air conditioning case 1 is not employ | adopted, the dew condensation adhering to piping has the division part of the air conditioning case 1 by a capillary phenomenon. It is possible to suppress the flow through. According to this configuration, the assembling property of the plurality of case members is improved, the strength of the air conditioning case 1 can be improved, and the distortion and deformation of the air conditioning case 1 can be suppressed.

  Moreover, according to the vehicle air conditioner 100, since the shape of the division | segmentation site | part of the air-conditioning case 1 can be simplified, since the die cost of a case member can be reduced and a molding defect product can be reduced, the product cost of an apparatus is suppressed. It contributes to that. In addition, the need for a cover or the like is reduced due to simplification of the shape of the divided parts, and the number of parts can be reduced.

  The guide portion is a connecting wall portion 22 that connects the first wall portion 220 that supports the side surface of the evaporator 11 and the second wall portion 221 that is located inside the first wall portion 220 and forms a step. is there. According to this configuration, the guide portion can be formed inside the case using the outer shape of the air conditioning case 1. In addition, by forming the guide portion with a step, it is possible to provide a case member that can improve the strength of the case and has good mold release properties.

  The guide portion is a rib 122 that protrudes inward from the inner surface of a predetermined case member. According to this configuration, since the guide portion is not formed by the step, it is not necessary to provide a difference in the width dimension of the air passage. Therefore, the passage space in the air conditioning case 1 can be formed as large as possible. Moreover, since it can form only by digging a groove | channel in the metal mold | die for shape | molding a case member, reduction of metal mold | die cost can be aimed at.

  The evaporator 11 has a predetermined posture in which the air passage surface 110a is inclined with respect to the guide surface so that the portion on the other end 111 side is separated from the guide portion rather than the portion on the one end 112 side near the pipe connection portion 113. Housed inside the case member. According to this configuration, after the evaporator 11 is installed on the back side wall 23 side in the case member, the other end 111 side of the smaller volume to which the pipe is not coupled is rotated so as to rotate to a predetermined position. Because it is installed, it can be assembled with good operability. Therefore, the vehicle air conditioner 100 that can reduce the number of assembly steps can be provided.

  A seal member 113 a that contacts the inner surface of a predetermined case member is provided on the outer periphery of the pipe connection portion 113. According to this configuration, it is possible to directly seal the air conditioning case 1 with the seal member 113a.

(Second Embodiment)
In 2nd Embodiment, the vehicle air conditioner 200 which is another form with respect to 1st Embodiment is demonstrated with reference to FIG.9 and FIG.10. When installing the evaporator 11 with respect to the first case member 102, the vehicle air conditioner 200 according to the second embodiment has the other end 111 positioned on the opposite side to the pipe connection portion 113 as the first case. The difference is that the member 102 enters. In the second embodiment, components having the same reference numerals as those in the drawing according to the first embodiment and configurations not described are the same as those in the first embodiment and have the same effects. In the second embodiment, a configuration different from that of the first embodiment will be described. 9 and 10 show the first case member 102 in a cut-away manner so that only the portion where the evaporator 11 is installed can be seen so that the situation when the evaporator 11 is installed can be easily understood. Therefore, in each figure, the 1st case member 102 has shown the external appearance about the other site | part.

  As shown in FIGS. 9 and 10, the vehicle air conditioner 200 includes an air conditioning case configured by combining a first case member 102 located below and a second case member 103 located above. The first case member 102 includes an installation opening 20 that opens upward in the upper part on the front side of the vehicle. The back side wall of the first case member 102 is a wall portion that directly or indirectly contacts the other end 111 on the evaporator 11 opposite to the pipe connection portion 113. The other end 111 corresponds to, for example, a header tank that becomes the leading side of the evaporator 11 when the evaporator 11 is installed in the first case member 102. On the other hand, the one end 112 corresponds to a header tank on the rear side of the evaporator 11.

  When installing the evaporator 11 in the first case member 102, as shown in FIG. 9, the evaporator 11 is inserted from the other end 111 into the inside of the installation opening 20, and the first case member 102. It is pushed toward the back side wall. At this time, the evaporator 11 is caused to enter the back side wall in a state where a part of the air passage surface 110a or the side plate is along the guide surface of the connecting wall portion 22. At this time, similarly to the first embodiment, the evaporator 11 can be allowed to enter smoothly without coming into contact with the inner surface of the first case member 102 at the end on the pipe connection portion 113 side.

  When the other end 111 of the evaporator 11 is entered until it reaches the back side wall, the one end 112 side of the evaporator 11 is moved so as to rotate to the piping opening 21 side to change the posture of the evaporator 11. By this movement, the seal member 113 a comes into contact with the inner surface of the first case member 102. Further, the evaporator 11 is installed in the first case member 102, and the air passage surface 110a is arranged such that the part on the one end 112 side is separated from the connecting wall part 22 than the part on the other end 111 side. The posture is inclined at a predetermined angle with respect to the guide surface of the communication wall portion 22. In this state, the other end 111 is in contact with the back side wall, and the first wall 220 is in direct or indirect contact with both side surfaces of the evaporator 11, so that the evaporator 11 is supported by the first case member 102. Has been. Next, the second case member 103 is assembled to the first case member 102.

  According to the second embodiment, the evaporator 11 has an air passage surface such that the portion on the one end 112 side near the pipe connecting portion 113 is separated from the guide surface of the connecting wall portion 22 than the portion on the other end 111 side. 110a is accommodated in the first case member 102 in a posture inclined with respect to the guide surface. According to this configuration, after the evaporator 11 is installed on the back side wall 23 side in the case member, the one end 112 on the pipe connection portion 113 side is moved to rotate. As a result, this rotational movement becomes a locus close to the axial direction of the piping portion, and therefore the seal member 113a can be brought into contact with the peripheral surface of the piping opening portion 21 at an angle that is substantially orthogonal. For this reason, the air conditioner 200 for vehicles which can improve the sealing performance of the sealing member 113a and a case member can be provided.

(Other embodiments)
The disclosure of this specification is not limited to the illustrated embodiments. The disclosure encompasses the illustrated embodiments and variations by those skilled in the art based thereon. For example, the disclosure is not limited to the combination of components and elements shown in the embodiments, and various modifications can be made. The disclosure can be implemented in various combinations. The disclosure may have additional parts that can be added to the embodiments. The disclosure includes those in which the components and elements of the embodiment are omitted. The disclosure encompasses parts, element replacements, or combinations between one embodiment and another. The technical scope disclosed is not limited to the description of the embodiments. The technical scope disclosed is indicated by the description of the scope of claims, and should be understood to include all modifications within the meaning and scope equivalent to the description of the scope of claims.

  In the above-described embodiment, the plurality of case members constituting the air conditioning case 1 are mainly the first case member 2 and the second case member 3, but are not limited to this number or configuration. The vehicle air conditioner 100 only needs to have a configuration in which the piping opening 21 is formed by a single case member, and a portion other than the piping opening 21 is formed by a plurality of case members. Also good.

  The vehicle air conditioners 100 and 200 disclosed in the above-described embodiments can install the evaporator 11 in the air conditioning case 1 without adopting a configuration in which piping extending from the evaporator 11 is passed through the division position of the air conditioning case 1. However, the target heat exchanger is not limited to the evaporator 11. The vehicle air conditioners 100 and 200 include, for example, a heat exchanger for heating such as a condenser, a heater core through which hot water or the like circulates, instead of the evaporator 11, and other pipes extending outside the air conditioning case 1. The heat exchanger can be applied.

  In the above-described embodiment, it is expressed that a certain part and another certain part are in direct or indirect contact. However, in the case of indirect contact, in order to ensure that both are in contact with each other, It is intended that a member is present, for example, a seal member is intended to be present.

DESCRIPTION OF SYMBOLS 1 ... Air-conditioning case 2 ... 1st case member (predetermined case member), 3 ... 2nd case member (case member)
10 ... Blower passage (air passage), 11 ... Evaporator (heat exchanger)
12 ... Cool air passage (air passage) 15 ... Hot air passage (air passage)
DESCRIPTION OF SYMBOLS 20 ... Opening part for installation, 21 ... Opening part for piping 22 ... Communication wall part (guide part), 23 ... Back side wall 110 ... Heat exchange part, 110a ... Outlet surface (air passage surface), 113 ... Pipe connection part 122 ... Rib (guide part)

Claims (6)

Air-conditioning case (1) which has an air passage (10, 12, 15) through which air blown into the passenger compartment flows and is formed by combining a plurality of case members (2, 3; 102, 103) When,
The heat exchange part (110) through which the heat medium flows and a pipe connection part (113) to which the outflow pipe and the inflow pipe for the heat medium are coupled are installed inside the air conditioning case and the heat A heat exchanger (11) for air-conditioning by allowing the air passing through the exchange unit to exchange heat with the heat medium;
A pipe opening (21) provided in one predetermined case member (2; 102) of the plurality of case members so as to face the pipe connection portion;
An installation opening (20) provided in the predetermined case member and having a size capable of inserting the heat exchanger into the predetermined case member;
Guide portion having a guide surface extending from the side of the installation opening in the predetermined case member a guide portion provided in the predetermined case member toward the rear side wall (23) and (2 2),
With
The heat exchanger includes an air passage surface (110a) of the heat exchange portion corresponding to an entrance surface or an exit surface when air passing through the heat exchange portion passes through the heat exchange portion,
The heat exchanger is configured such that the air passage surface is inclined with respect to the guide surface so that a portion near the opening for installation is more distant from the guide portion than a portion near the back side wall. Is housed inside the case member ,
The guide part connects the first wall part (220) that supports the side surface of the heat exchanger and the second wall part (221) that is located inside the first wall part and forms a step. wall der Ru vehicle air conditioner. The heat exchanger has the posture in which the air passage surface is inclined with respect to the guide surface so that the portion on the other end side is separated from the guide portion rather than the portion on the one end side near the pipe connection portion. air-conditioning system according to claim 1 that is housed inside a given case member. The heat exchanger is configured such that the air passage surface is inclined with respect to the guide surface so that a portion on one end side near the pipe connection portion is separated from the guide portion than a portion on the other end side. air-conditioning system according to claim 1 that is housed inside a given case member. An air conditioning case (1) having an air passage (10, 12, 15) through which air blown into the passenger compartment flows, and a combination of a plurality of case members (102, 103);
The heat exchange part (110) through which the heat medium flows and a pipe connection part (113) to which the outflow pipe and the inflow pipe for the heat medium are coupled are installed inside the air conditioning case and the heat A heat exchanger (11) for air-conditioning by allowing the air passing through the exchange unit to exchange heat with the heat medium;
A pipe opening (21) provided in one predetermined case member (102) of the plurality of case members so as to face the pipe connection portion;
An installation opening (20) provided in the predetermined case member and having a size capable of inserting the heat exchanger into the predetermined case member;
A guide portion (22; 122) provided on the predetermined case member, the guide portion having a guide surface extending from the installation opening side toward the back side wall (23) in the predetermined case member;
With
The heat exchanger includes an air passage surface (110a) of the heat exchange portion corresponding to an entrance surface or an exit surface when air passing through the heat exchange portion passes through the heat exchange portion,
The heat exchanger is configured such that the air passage surface is inclined with respect to the guide surface so that a portion near the opening for installation is more distant from the guide portion than a portion near the back side wall. Is housed inside the case member,
Said heat exchanger, said in a posture in which the air passage surface is inclined with respect to said guide surface as towards the site of the one end closer to the pipe connection portion is separated from the guide portion than to the region of the other end A vehicle air conditioner housed in a predetermined case member. The guide portion is air-conditioning system according to claim 4 Ru der ribs (122) projecting inwardly from an inner surface of said predetermined case member.   The vehicle air conditioner according to any one of claims 1 to 5, wherein a seal member (113a) that contacts an inner surface of the predetermined case member is provided on an outer periphery of the pipe connection portion.

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