JP2015123780A - Vehicle air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle air conditioner provided with an air mix mechanism that is smaller than and moves a shorter distance than a conditional air mix mechanism.SOLUTION: A vehicle air conditioner 20 includes a case 13, a heater core 14 and an air mix mechanism 200. In the vehicle air conditioner, the air mix mechanism has a stationary plate 210 and a movable plate 220. The stationary plate has stationary slits passing therethrough in its plate thickness direction. The movable plate has movable slits passing therethrough in its plate thickness direction, and is in contact with the stationary plate such that the movable plate is slidable in the width directions of the stationary slits and the movable slits. By sliding the movable plate relative to the stationary plate, an open state in which the stationary slit overlaps the movable slit and a closed state in which the stationary slit and the movable slit are shifted from each other appear at the same time.

Description

  The present invention relates to a vehicle air conditioner.

  A vehicle air conditioner usually includes an air mix mechanism, and the air mix mechanism adjusts the ratio of the amount of air that passes through the heater core and the amount of air that bypasses the heater core.

  As a conventional air mix mechanism, for example, a cantilever type air mix door (for example, refer to Patent Document 1) whose one end is fixed to a rotary shaft, butterfly type cold air that can rotate around the rotary shaft Mix door (for example, refer to Patent Document 2), an air mix door (for example, refer to Patent Document 3) in which two door members are connected by a hinge, and a plate-shaped mix door that slides up and down (for example, Patent Document 4) is known. Further, although not an air mix mechanism, an assembly unit is disclosed that includes a film damper having an opening, a pair of winding shafts to which both ends of the film damper are coupled, and a rotation driving means for driving the winding shaft. (For example, Patent Document 5).

JP 2002-243262 A JP 2001-294031 A JP 2000-190722 A Japanese Patent Application Laid-Open No. 11-1114 JP-A-5-296553

  However, the air mix mechanism described in Patent Document 1 or 2 requires a large space for the door to rotate, and the vehicle air conditioner becomes large. The air mix mechanism described in Patent Document 3 takes a long time to switch modes because of the long movement distance of the door. In order to speed up the movement of the door, it is necessary to increase the rotational speed of the rotary shaft of the door, and a large torque is required to rotate the door quickly. The air mix mechanism described in Patent Document 4 also takes a long time to switch modes because of the long door movement distance. In the assembly unit described in Patent Document 5, there are problems such as a long moving distance of the film, which takes time for mode switching, noise is likely to occur due to rubbing during film movement, and the number of parts is complicated and the structure is complicated. is there.

  An object of the present invention is to provide a vehicle air conditioner including an air mix mechanism that is smaller than a conventional air mix mechanism and has a short moving distance.

  A vehicle air conditioner according to the present invention includes a case having an air passage for blown air therein, a heater core disposed inside the case and heating the blown air, and an upstream side of the air passage from the heater core. An air mix mechanism that adjusts the ratio of the amount of air that passes through the heater core and the amount of air that bypasses the heater core, wherein the air mix mechanism includes a fixed plate portion And the movable plate portion, the fixed plate portion has a fixed slit provided through the plate thickness direction, and the movable plate portion is provided movable through the plate thickness direction. The fixed slit has a slit, and is in contact with the fixed plate portion so as to be slidable in the width direction of the fixed slit and the movable slit. As the movable plate portion slides with respect to the fixed plate portion, the fixed slit When Serial combination are closed offset overlapping of overlap and a movable slit and opened it becomes combined and the fixed slit and the movable slit, characterized in that appear simultaneously.

  In the vehicle air conditioner according to the present invention, the fixed plate portion and the movable plate portion are arranged in one set across the hot air passage for blowing air to the heater core and the cold air passage that bypasses the heater core, (1) a full hot mode in which the arrangement of the fixed slit and the movable slit is fully open on the side of the hot air passage and is fully closed on the side of the cold air passage; and (2) the hot air passage. A fully-cooled mode that is fully closed on the side and fully open on the cold air passage side, and (3) (i) a partially open state on the hot air passage side and the cold air (Ii) partially open on the warm air passage side and fully open on the cold air passage side, (iii) the warm air passage side In the fully open state and partially open on the cold air passage side. , Of (i) ~ air mix mode including at least one (iii), it is preferable to have a regularity that the three switching modes. The number of parts can be reduced.

  In the vehicle air conditioner according to the present invention, one set of each of the fixed plate portion and the movable plate portion is disposed in a warm air passage that blows air to the heater core and a cold air passage that bypasses the heater core. A full hot mode in which the movable slit and the fixed slit are fully open on the side of the hot air passage, and the movable slit and the fixed slit are fully closed on the side of the cold air passage; A full-cool mode in which the movable slit and the fixed slit are fully closed on the side of the hot air passage, and the movable slit and the fixed slit are fully open on the side of the cold air passage; and (3) ( i) The movable slit and the fixed slit are partially open on the warm air passage side, and the movable slit and the fixed slit are on the cold air passage side. (Ii) The movable slit and the fixed slit are partially open on the side of the hot air passage, and the movable slit and the fixed slit are fully open on the side of the cold air passage Or (iii) the movable slit and the fixed slit are fully open on the side of the hot air passage, and the movable slit and the fixed slit are partially open on the side of the cold air passage. It is preferable to have three modes of an air mix mode including at least one of (i) to (iii). The fixed plate portion and the movable plate portion can be made smaller. In addition, since the fixed plate portion and the movable plate portion can be formed or arranged according to the shape of the hot air passage side or the cold air passage side, the degree of freedom in design can be improved.

  In the vehicle air conditioner according to the present invention, it is preferable that the air mix mechanism has one rotating shaft that slides the movable plate portion for each movable plate portion. The air mix mechanism can be further downsized.

  In the vehicle air conditioner according to the present invention, it is preferable that the fixed plate portion is integral with the case. The number of parts of the vehicle air conditioner can be reduced.

  In the vehicle air conditioner according to the present invention, it is preferable that the movable plate portion is disposed on the upstream side of the air passage with respect to the fixed plate portion. The movable plate portion is pressed toward the fixed plate portion by the blown air, and unintended air leakage in the fully closed state can be suppressed.

  In the vehicle air conditioner according to the present invention, the rotation shaft is arranged with an axial direction directed in the same direction as a sliding direction of the movable plate portion, and a pin provided on the movable plate portion is connected to the rotation shaft. It is preferable that the movable plate portion slides by engaging with a spiral groove provided on a side surface and moving the pin along the spiral groove as the rotation shaft rotates. Even if there is a slight friction between the movable plate portion and the fixed plate portion, the movable plate portion can be slid more reliably.

  In the vehicle air conditioner according to the present invention, the fixed slit and the movable slit are arranged with the longitudinal direction of the fixed slit and the movable slit directed in the vertical direction of the vehicle, and the fixed plate portion or the movable plate portion Of these, the plate portion on the downstream side of the air passage preferably has an air guide that is disposed along the longitudinal direction of the slit provided in the plate portion and protrudes on the downstream side of the air passage. Generally, the air conditioned at the downstream side of the air mix mechanism is required to have an appropriate temperature difference between the upper and lower air. By arranging the air guide in the vertical direction, it is possible to guide the warm air upward and obtain air having an appropriate temperature difference.

  In the vehicle air conditioner according to the present invention, it is preferable that the air guide is disposed on a cold air passage side that bypasses the heater core. Hot air can be more efficiently guided above the air conditioner. Moreover, it is made easy to flow warm air to a vent opening part and a defroster opening part.

  In the vehicle air conditioner according to the present invention, it is preferable that the sliding direction of the movable plate portion is the left-right direction of the vehicle. The movable plate portion can move more efficiently without being affected by its own weight.

  The present invention can provide a vehicle air conditioner including an air mix mechanism that is smaller than a conventional air mix mechanism and has a short moving distance.

It is the schematic which shows an example of the vehicle air conditioner which concerns on 1st embodiment. It is the schematic which shows an example of an air mix mechanism. It is a figure for demonstrating the operation principle of an example of a rotating shaft. It is an AA line cutting part end elevation of Drawing 2, and (a) shows a full open state, (b) shows a partially open state, and (c) shows a fully closed state. It is the schematic which shows an example of the vehicle air conditioner which concerns on 2nd embodiment, and shows full hot mode. It is a figure which shows the 1st example of the arrangement | sequence of a fixed slit and a movable slit, (a) shows a movable plate part, (b) shows a fixed plate part. 7A and 7B are diagrams for explaining mode switching using the movable plate portion shown in FIG. 6A and the fixed plate portion shown in FIG. 6B, where FIG. 6A is a full hot mode, and FIG. Mode, (c) shows the full cool mode. It is a figure which shows the 2nd example of the arrangement | sequence of a fixed slit and a movable slit, (a) shows a movable plate part, (b) shows a fixed plate part. It is a figure which shows the 3rd example of the arrangement | sequence of a fixed slit and a movable slit, (a) shows a movable plate part, (b) shows a fixed plate part. It is a figure which shows the 4th example of the arrangement | sequence of a fixed slit and a movable slit, (a) shows a movable board part, (b) shows a fixed board part. It is a perspective view which shows an example of an air guide. It is the schematic which shows an example of the vehicle air conditioner which concerns on this embodiment, and shows air mix mode. It is the schematic which shows an example of the vehicle air conditioner which concerns on this embodiment, and shows a full cool mode.

  Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. The embodiments described below are examples of the present invention, and the present invention is not limited to the following embodiments. In the present specification and drawings, the same reference numerals denote the same components. Various modifications may be made as long as the effects of the present invention are achieved.

  As shown in FIG. 1, in the vehicle air conditioners 10 and 20 according to the present embodiment, one set of the air mix mechanism 100 is disposed in each of the hot air passage 12 a and the cold air passage 12 b (first embodiment). As shown in FIG. 5, the air mix mechanism 200 includes a form (second embodiment) in which one set is disposed across the hot air passage 12a and the cold air passage 12b.

(First embodiment)
With reference to FIGS. 1-4, the vehicle air conditioner 10 which concerns on 1st embodiment is demonstrated. As shown in FIG. 1, a vehicle air conditioner 10 according to the present embodiment includes a case 13 having an air passage 12 for blowing air therein, a heater core 14 that is disposed inside the case 13 and heats the blowing air. An air mix mechanism 100 (100A, 100B) that is arranged on the upstream side of the air passage 12 relative to the heater core 14 and adjusts the ratio of the amount of air that passes through the heater core 14 and the amount of air that bypasses the heater core 14; As shown in FIG. 2, the air mix mechanism 100 (100A, 100B) includes a fixed plate portion 110 and a movable plate portion 120, and the fixed plate portion 110 has a plate thickness direction. The movable plate part 120 has a movable slit 121 provided so as to penetrate in the plate thickness direction, and the fixed plate part 11. Slidably in contact with the fixed slit 111 and the movable slit 121 in the width direction (left and right direction in FIG. 2). And a combination in which the fixed slit 111 and the movable slit 121 are shifted from each other and a combination in which the closed state is closed appear simultaneously. In this specification, the width direction of a slit means the short direction of a slit.

  Case 13 is a case of HVAC (heating, ventilation, and air conditioning). The case 13 has an air passage 12 for blown air therein. The case 13 has a defroster opening 16 that leads to a defroster outlet (not shown), a vent opening 17 that leads to a vent outlet (not shown), and a foot opening 18 that leads to a foot outlet (not shown). The defroster opening 16 is opened and closed by the defroster door 6. The vent outlet 17 is opened and closed by a vent door 7. The foot opening 18 is opened and closed by the foot door 8. In FIG. 1, although the defroster door 6, the vent door 7, and the foot door 8 showed the form which is a plate door, this invention is not limited to the kind of door.

  A heater core 14 is disposed in the air passage 12. The heater core 14 heats the blown air. An evaporator 15 may be disposed in the air passage 12. The evaporator 15 is disposed upstream of the heater core 14 in the air passage 12 and cools the blown air.

  The air passage 12 includes a hot air passage 12a that blows air to the heater core 14, a cold air passage 12b that bypasses the heater core 14, and an air mix chamber 12c. The warm air passage 12 a is a space for guiding the blown air to the heater core 14. The cool air passage 12 b is a space that guides the blown air to the downstream side of the heater core 14 without passing through the heater core 14. The air mix chamber 12c is a space in which the air that has passed through the hot air passage 12a and the air that has passed through the cold air passage 12b are mixed.

  The vehicle air conditioner 10 according to the first embodiment includes, as the air mix mechanism 100, a hot air air mix mechanism 100A disposed in the warm air passage 12a and a cold air air mix mechanism 100B disposed in the cool air passage 12b. Have By disposing one set of the air mix mechanism 100 in each of the hot air passage 12a and the cold air passage 12b, the movable plate portion 110 and the movable plate portion 120 can be made smaller. Moreover, since the air mix mechanism 100A or the air mix mechanism 100B can be formed or arranged according to the shape of each of the hot air passage 12a and the cold air passage 12b, the degree of freedom in design can be improved. it can.

  The hot air air mix mechanism 100 </ b> A adjusts the amount of air passing through the heater core 14. As shown in FIG. 1, the hot air air mix mechanism 100 </ b> A is disposed so as to cover the front surface 14 a of the heater core 14. The cold air air mix mechanism 100 </ b> B adjusts the amount of air that bypasses the heater core 14. As shown in FIG. 1, the cold air air mix mechanism 100B is disposed above the hot air air mix mechanism 100A. The hot air air mix mechanism 100A and the cold air air mix mechanism 100B have the same structure. For this reason, description of the structure of the air mix mechanism 100B for cold air is abbreviate | omitted, and structure of only the air mix mechanism 100A for warm air is demonstrated.

  As shown in FIG. 2, the hot air air mix mechanism 100 </ b> A includes a fixed plate portion 110 and a movable plate portion 120.

  The fixed plate portion 110 is a plate-like member, and the shape in plan view is, for example, a rectangular shape. The fixed plate part 110 is fixed to the case 13. In the vehicle air conditioner 10 according to the present embodiment, the fixed plate portion 110 is preferably integral with the case 13. The number of parts of the vehicle air conditioner can be reduced.

  The fixed slit 111 is formed by a through hole provided so as to penetrate in the thickness direction of the fixed plate portion 110. As shown in FIG. 2, each fixed slit 111 is preferably composed of one through hole. The present invention is not limited to the shape and number of fixed slits 111. Further, the fixed slit 111 may be arranged with the longitudinal direction of the slit directed in the vertical direction of the vehicle (shown in FIG. 2), or may be arranged with the longitudinal direction of the slit directed in the lateral direction of the vehicle (not shown). ). More preferably, the longitudinal direction of the slit is arranged in the vertical direction of the vehicle.

  The movable plate portion 120 is a plate-like member, and the shape in plan view is, for example, a rectangular shape. The movable plate part 120 slides with respect to the fixed plate part 110. The sliding direction of the movable plate portion 120 is preferably the left-right direction of the vehicle. The movable plate part 120 can move more efficiently without being affected by its own weight.

  The movable plate portion 120 is preferably disposed on the upstream side of the air passage 12 with respect to the fixed plate portion 110. The movable plate portion 120 is pressed toward the fixed plate portion 110 by the blown air, and unintended air leakage in the fully closed state can be suppressed.

  The movable slit 121 is formed by a through hole provided so as to penetrate in the thickness direction of the movable plate portion 120. As shown in FIG. 2, each movable slit 121 is preferably composed of one through hole. The present invention is not limited to the shape and number of movable slits 121. Further, the movable slit 121 may be arranged with the longitudinal direction of the slit directed in the vertical direction of the vehicle (shown in FIG. 2), or may be arranged with the longitudinal direction of the slit directed in the lateral direction of the vehicle (not shown). ). More preferably, the longitudinal direction of the slit is arranged in the vertical direction of the vehicle.

  In the vehicle air conditioner 10 according to the present embodiment, the air mix mechanism 100 (100A, 100B) preferably has one rotating shaft 130 that slides the movable plate portion 120 for each movable plate portion 120. By having only one rotating shaft 130 for each movable plate part 120, for example, a film damper as shown in Patent Document 5, for example, compared with a device that requires two winding shafts, The mix mechanism can be further downsized. As a result, the vehicle air conditioner 10 can be downsized.

  FIG. 3 is a diagram for explaining an operation principle of an example of the rotation shaft. The rotation shaft 130 is arranged with its axial direction facing the same direction as the sliding direction of the movable plate portion 120 (left and right direction in FIG. 3), and a pin 122 provided on the movable plate portion 120 is on the side surface of the rotation shaft 130. It is preferable that the movable plate portion 120 slides by engaging with the provided spiral groove 132a and moving the pin 122 along the spiral groove 132a as the rotation shaft 130 rotates. With the rotation shaft 130 having such a structure, the movable plate 120 can be slid more reliably even if there is a slight friction between the movable plate 120 and the fixed plate 110. Moreover, the torque for rotating the rotation shaft 130 can be reduced.

  The rotation shaft 130 preferably has a thin shaft portion 131 and a thick shaft portion 132. The thin shaft portion 131 is a main shaft of the rotation shaft 130. The thick shaft portion 132 is coaxial with the thin shaft portion 131 and has a larger diameter than the thin shaft portion 131. The spiral groove 132a is preferably formed by denting the side surface of the thick groove portion 132. The pin 122 protrudes from the surface of the movable plate portion 120 on the side opposite to the fixed plate portion 110 side. The pin 122 may be integrated with the movable plate part 120 or may be a separate body. The present invention is not limited to the number of pins 122.

  4 is an end view taken along line AA in FIG. 2, where (a) shows a fully open state, (b) shows a partially open state, and (c) shows a fully closed state. Next, the positional relationship between the fixed slit and the movable slit will be described with reference to FIG.

  In the hot air air mixing mechanism 100A, the fixed slit 111 and the movable slit 121 are moved in accordance with the sliding of the fixed plate portion 110 of the movable plate portion 120, as shown in FIG. And a pair of pairs, and a combination of a plurality of pairs is completely open, and a fixed slit 111 and a movable slit 121 are paired as shown in FIG. As shown in FIG. 4C, the open slit with the overlap shifted, and the fixed slit 111 and the movable slit 121 form a pair, and a combination of a plurality of pairs causes a closed state with the offset completely shifted. Has a positional relationship. The positional relationship between the fixed slit and the movable slit in the cold air air mix mechanism 100B (shown in FIG. 1) is the same as that of the hot air air mix mechanism 100A.

  In the vehicle air conditioner according to the first embodiment, when the hot air air mix mechanism 100A is in the open state, the cold air air mix mechanism 100B is in the closed state, or the hot air air mix mechanism 100A is in the closed state. At this time, the movement of the movable plate portion 120 in the hot air air mix mechanism 100A and the movement of the movable plate portion 120 in the cold air air mix mechanism 100B are linked so that the cold air air mix mechanism 100B is in the open state. By interlocking in this way, as the movable plate portion 120 slides with respect to the fixed plate portion 110, the combination in which the fixed slit 111 and the movable slit 121 overlap with each other and the open state and the fixed slit 111 and the movable slit 121 are combined. Combinations in which the overlap is shifted and the closed state appears simultaneously. Therefore, a combination in which the overlap between the fixed slit 111 and the movable slit 121 is completely shifted and only the closed state does not appear.

  Next, with reference to FIG. 4, the mechanism by which the air mix mechanism adjusts the amount of air will be described.

  First, as shown in FIG. 4A, when the movable slit 121 overlaps the fixed slit 111 over its entire width, a gap formed by overlapping the fixed slit 111 and the movable slit 121 (hereinafter, the gap is referred to as an air vent. ) Is fully open. When the ventilation opening is in the fully open state, the amount of air passing through the ventilation opening is maximized. Next, when the movable plate portion 120 slides in one direction (right direction in FIG. 4A) with respect to the fixed plate portion 110, the movable slit 121 has a width of the width as shown in FIG. 4B. Partly overlaps with the fixed slit 111, and the ventilation opening is partially opened. Furthermore, when the movable plate portion 120 slides in one direction (right direction in FIG. 4B) with respect to the fixed plate portion 110, the movable slit 121 extends over the entire width as shown in FIG. 4C. The overlap with the fixed slit 111 is shifted, and the ventilation port is fully closed. When the movable plate 120 slides in the opposite direction (leftward in FIG. 4 (c)) with respect to the fixed plate 110, the ventilation opening is partially opened from the fully closed state (FIG. 4 (c)). After the state (FIG. 4B), the state changes to the fully open state (FIG. 4A). As described above, as the movable plate portion 120 slides with respect to the fixed plate portion 110, the positional relationship between the fixed slit 111 and the movable slit 121 changes as shown in FIGS. The total opening area of the vent changes. Thereby, the air quantity of blowing air is adjusted.

  In the vehicle air conditioner according to the first embodiment, (1) the movable slit 121 and the fixed slit 111 are fully open on the hot air passage 12a side, and the movable slit 121 and the fixed slit 111 are on the cold air passage 12b side. (2) The movable slit 121 and the fixed slit 111 are fully closed on the hot air passage 12a side, and the movable slit 121 and the fixed slit 111 are on the cold air passage 12b side. Full cool mode that is fully open, and (3) (i) The movable slit 121 and the fixed slit 111 are partially open on the hot air passage 12a side, and the movable slit 121 and the fixed slit 111 are for cold air. (Ii) The movable slit 121 and the fixed slit 111 are partially opened on the warm air passage 12a side. And the movable slit 121 and the fixed slit 111 are fully open on the cold air passage 12b side, or (iii) the movable slit 121 and the fixed slit 111 are fully open on the hot air passage 12a side, and It is preferable that the movable slit 121 and the fixed slit 111 have three modes of an air mix mode including at least one of (i) to (iii) in which the movable slit 121 and the fixed slit 111 are partially opened on the cold air passage 12b side.

  In the full hot mode, for example, the hot air air mix mechanism 100A in FIG. 1 is in the state of FIG. 4A, and the cold air air mix mechanism 100B is in the state of FIG. 4C.

  In the full cool mode, for example, in FIG. 1, the hot air air mix mechanism 100A is in the state of FIG. 4C, and the cool air air mix mechanism 100B is in the state of FIG. 4A.

  In the air mix mode, for example, (i) in FIG. 1, is the hot air air mix mechanism 100A in the state of FIG. 4 (b) and the cold air air mix mechanism 100B is in the state of FIG. 4 (b)? (Ii) In FIG. 1, the hot air air mixing mechanism 100A is in the state of FIG. 4B and the cold air air mixing mechanism 100B is in the state of FIG. 4A, or (iii) FIG. 1, at least one of (i) to (iii) in which the hot air air mix mechanism 100A is in the state shown in FIG. 4A and the cold air air mix mechanism 100B is in the state shown in FIG. Including one. Thus, in the vehicle air conditioner 10 according to the first embodiment, the opening area of the ventilation opening in the hot air air mixing mechanism 100A and the opening area of the ventilation opening in the cold air air mixing mechanism 100B are adjusted respectively. By doing so, the ratio of the amount of air passing through the heater core 14 and the amount of air bypassing the heater core 14 can be adjusted. The air mix modes such as (ii) and (iii) have a larger total sum of the opening areas of the vents than the air mix mode of (i), and thus reduce the ventilation resistance of the vehicle air conditioner 10. It is more preferable at the point which can do.

(Second embodiment)
With reference to FIGS. 5-14, the vehicle air conditioner 20 which concerns on 2nd embodiment is demonstrated. In the vehicle air conditioner 20 according to the second embodiment, a basic structure is provided except that one set of the air mix mechanism 200 is disposed across the hot air passage 12a and the cold air passage 12b as shown in FIG. Is the same as the vehicle air conditioner 10 according to the first embodiment. For this reason, description is abbreviate | omitted about the part which is common in the vehicle air conditioner 10 which concerns on 1st embodiment, and only a different part is demonstrated. In FIGS. 5, 12, and 13, portions common to the vehicle air conditioner 10 according to the first embodiment are denoted by the same reference numerals as in FIG. 1.

  In the vehicle air conditioner 20 according to the second embodiment, the fixed plate portion 210 and the movable plate portion 220 are arranged in one set across the hot air passage 12a and the cold air passage 12b, thereby reducing the number of parts. can do.

  The vehicle air conditioner 20 according to the second embodiment has regularity in the arrangement of the fixed slits 111 and the movable slits 221, and the opening areas of the slits are respectively adjusted on the hot air passage 12a side and the cold air passage 12b side. Thus, the ratio of the amount of air passing through the heater core 14 and the amount of air bypassing the heater core 14 is adjusted. Next, a specific example of the arrangement of the fixed slit 211 and the movable slit 221 will be described. The present invention is not limited to these specific examples.

  6A and 6B are diagrams showing a first example of an arrangement of fixed slits and movable slits, where FIG. 6A shows a movable plate portion and FIG. 6B shows a fixed plate portion. As shown in FIG. 6A, the movable plate portion 220A has a hot air side region Sa and a cold air side region Sb. The warm air side region Sa is a region disposed in the warm air passage 12a (shown in FIG. 5). The cold air side region Sb is a region disposed in the cold air passage 12b (shown in FIG. 5). The movable plate part 220A has a movable slit 221A. Each movable slit 221A is formed of a single rectangular through-hole, straddling the hot air side region Sa and the cold air side region Sb, and arranged with the longitudinal direction of the slit directed in the vertical direction of the vehicle. In the arrangement of the first example, the sliding direction of the movable plate portion 220A is the left-right direction of the vehicle.

  As shown in FIG. 6B, the fixed plate portion 210A has a hot air side region Sa and a cold air side region Sb. The fixed plate portion 210A has a fixed slit 211A. Each fixed slit 211A is composed of one rectangular through-hole, and is arranged in each of the hot air side region Sa and the cold air side region Sb, and the longitudinal direction of the slit is arranged in the vertical direction of the vehicle.

  The rotation shaft (not shown) is preferably arranged at a position that does not overlap the movable slit 221A. The positions that do not overlap the movable slit 221A are, for example, the lower part of the movable slit 221A arranged in the hot air side area Sa and the upper part of the movable slit 221A arranged in the cold air side area Sb. Further, the rotation shaft may be disposed at a position that does not overlap the fixed slit 211A. The positions that do not overlap with the fixed slit 211A are, for example, the lower part of the fixed slit 211A arranged in the hot air side area Sa, the upper part of the fixed slit 211A arranged in the cold air side area Sb, the hot air side area Sa and the cold air side. This is a boundary portion with the region Sb.

  FIG. 7 is a diagram for explaining mode switching using the movable plate portion shown in FIG. 6A and the fixed plate portion shown in FIG. 6B. FIG. 7A is a full hot mode, and FIG. ) Indicates an air mix mode, and (c) indicates a full cool mode. 7A to 7C, the ventilation holes are hatched. Next, the positional relationship between the fixed slit and the movable slit will be described with reference to FIG.

  In the air mix mechanism 200, in the hot air side region Sa, the fixed slit 211A and the movable slit 221A are fixed slits as shown in FIG. 7A in accordance with the sliding of the movable plate portion 220 and the fixed plate portion 210. 211A and movable slit 221A are paired, and an open state in which a plurality of pairs are completely overlapped with each other, as shown in FIG. 7B, fixed slit 211A and movable slit 221A are paired to form a plurality of pairs. As shown in FIG. 7 (c), the combination of pairs is shifted in the open state, and as shown in FIG. 7C, the fixed slit 211A and the movable slit 221A are paired. Closed state appears. Further, in the air mix mechanism 200, in the cold air side region Sb, the fixed slit 211A and the movable slit 221A are as shown in FIG. 7 (a) as the movable plate portion 220 and the fixed plate portion 210 slide. A closed state in which the fixed slit 211A and the movable slit 221A are paired, and a combination of a plurality of pairs is completely shifted from each other, as shown in FIG. 7B, the fixed slit 211A and the movable slit 221A are a pair. Thus, an open state in which a plurality of pairs of combinations are shifted from each other, as shown in FIG. 7C, the fixed slit 211A and the movable slit 221A form a pair, and the combinations of the plurality of pairs completely overlap each other. Appears in the open state.

  In the vehicle air conditioner according to the second embodiment, when the hot air side region Sa is open, the cold air side region Sb is closed, or when the hot air side region Sa is closed, the cold air side region Sb Are arranged such that the fixed slit 211A and the movable slit 221A in the hot air side region Sa and the fixed slit 211A and the movable slit 221A in the cold air side region Sb are arranged. By arranging in this way, as the movable plate part 220 slides with respect to the fixed plate part 210, the fixed slit 211A and the movable slit 221A overlap with each other to be in an open state, and the fixed slit 211A and the movable slit 221A Combinations in which the overlap is shifted and the closed state appears simultaneously. Therefore, a combination in which the overlap between the fixed slit 211A and the movable slit 221A is completely shifted and only the closed state does not appear.

  In the vehicle air conditioner 20 (illustrated in FIG. 5) according to the second embodiment, the arrangement of the fixed slit 211 and the movable slit 221 is (1) fully open on the hot air passage 12a side, and the cold air passage. A full hot mode that is fully closed on the side of 12b, (2) a full cool mode that is fully closed on the side of the hot air passage 12a and is fully open on the side of the cold air passage 12b, and (3) ( i) partially open on the warm air passage 12a side and partially open on the cold air passage 12b side; (ii) partially open on the hot air passage 12a side; and (Iii) (iii) in which the cool air passage 12b is fully open, (iii) the warm air passage 12a is fully open, and the cold air passage 12b is partially open. Switching between three modes: air mix mode including at least one It is preferred to have the regularity of the example.

  In the full hot mode, as shown in FIG. 7A, in the hot air side region Sa, the movable slit 221A overlaps with the fixed slit 211A over the entire width thereof so that the air vent is fully opened, and the cold air side region Sb. Then, the movable slit 221A is not overlapped with the fixed slit 211A over its entire width, and the ventilation opening is fully closed.

  When the movable plate portion 220A (back plate) moves in one direction (rightward in FIG. 7A) from the state of the full hot mode shown in FIG. 7A, the air mix shown in FIG. Become a mode. In the air mix mode, as shown in FIG. 7B, in the warm air side region Sa, the movable slit 221A partially overlaps the fixed slit 211A with a part of its width, and the ventilation opening is partially opened. In the cold air side region Sb, the movable slit 221A partially overlaps the fixed slit 211A with a part of its width, and the ventilation opening is partially opened.

  When the movable plate portion 220A (back side plate) moves in one direction (rightward in FIG. 7B) from the state of the air mix mode shown in FIG. 7B, the full cool mode shown in FIG. 7C. In the full cool mode, as shown in Fig. 7C, in the warm air side region Sa, the movable slit 221A is not overlapped with the fixed slit 211A over its entire width, and the ventilation port is in the fully closed state. At the same time, in the cold air side region Sb, the movable slit 221A overlaps with the fixed slit 211A over the entire width thereof so that the air vent is fully opened.

  In FIGS. 7A to 7C, the width of the fixed slit 211A and the width of the movable slit 221A are approximately the same, but the width of the fixed slit 211A and the width of the movable slit 221A are different from each other. Also good. The form in which the width of the fixed slit 211A and the width of the movable slit 221A are different from each other is, for example, a form in which the width of the fixed slit 211A is wider than the width of the movable slit 221A, or the width of the movable slit 221A is a fixed slit. This is a form that is wider than the width of 211A. If the width of the fixed slit 211A and the width of the movable slit 221A are different from each other, in the air mix mode, the movable slit 221A overlaps the fixed slit 211A with a part of the width in the warm air side region Sa. In the cold air side area Sb, the movable slit 221A overlaps with the fixed slit 211A over the entire width thereof, or the ventilation opening is fully opened, or in the hot air side area Sa, the movable slit is opened. 221A overlaps the fixed slit 211A over its entire width and the ventilation opening is fully opened. In the cold air side region Sb, the movable slit 221A partially overlaps the fixed slit 211A and partially opens the ventilation opening. At least one of the states will appear.

  Up to here, FIG. 6 (a) is the movable plate portion and FIG. 6 (b) is the fixed plate portion. However, FIG. 6 (a) is the fixed plate portion, and FIG. A similar effect can be obtained even when the is a movable plate portion.

  FIG. 8 is a diagram illustrating a second example of the arrangement of the fixed slits and the movable slits, in which (a) shows the movable plate part and (b) shows the fixed plate part. In the movable plate part 220B, the movable slit 221B is composed of one rectangular through hole, and is arranged with the longitudinal direction of the slit directed in the left-right direction of the vehicle. In the arrangement of the second example, the sliding direction of the movable plate portion 220B is the vertical direction of the vehicle. In the fixed plate portion 210B, the fixed slit 211B is composed of one rectangular through hole, and is arranged with the longitudinal direction of the slit directed in the left-right direction of the vehicle. In the arrangement of the second example, when the movable plate part 220B slides in the vertical direction of the vehicle with respect to the fixed plate part 210B, the open / close state of the ventilation port changes to the full hot mode, the air mix mode, and the full cool mode. . Here, FIG. 8A is a movable plate portion and FIG. 8B is a fixed plate portion. However, FIG. 8A is a fixed plate portion, and FIG. A similar effect can be obtained even when the is a movable plate portion.

  FIG. 9 is a diagram showing a third example of the arrangement of fixed slits and movable slits, where (a) shows a movable plate portion and (b) shows a fixed plate portion. The arrangement of the third example has the same structure as the arrangement of the first example shown in FIGS. 6A and 6B except that the movable slit 221C and the fixed slit 211C are composed of a plurality of circular through holes. In the arrangement of the third example, when the movable plate part 220C slides in the left-right direction of the vehicle with respect to the fixed plate part 210C, the open / close state of the ventilation port changes to the full hot mode, the air mix mode, and the full cool mode. . Here, FIG. 9 (a) is a movable plate portion and FIG. 9 (b) is a fixed plate portion. However, FIG. 9 (a) is a fixed plate portion, and FIG. 9 (b). A similar effect can be obtained even when the is a movable plate portion.

  FIG. 10 is a diagram illustrating a fourth example of the arrangement of fixed slits and movable slits, where (a) shows a movable plate portion and (b) shows a fixed plate portion. The arrangement of the fourth example has the same structure as the arrangement of the second example shown in FIGS. 8A and 8B, except that the movable slit 221D and the fixed slit 211D are composed of a plurality of circular through holes. In the arrangement of the fourth example, when the movable plate part 220D slides in the vertical direction of the vehicle with respect to the fixed plate part 210D, the open / closed state of the ventilation port changes to the full hot mode, the air mix mode, and the full cool mode. . Here, FIG. 10 (a) is a movable plate portion and FIG. 10 (b) is a fixed plate portion. However, FIG. 10 (a) is a fixed plate portion, and FIG. A similar effect can be obtained even when the is a movable plate portion.

  FIG. 11 is a perspective view showing an example of an air guide. In the vehicle air conditioner according to the second embodiment, when the fixed plate portion 210E is on the downstream side of the air passage with respect to the movable plate portion (not shown), the fixed slit 211E and the movable slit (not shown) are fixed slit 211E. In addition, the movable slit (not shown) is arranged with the longitudinal direction of the vehicle facing the vertical direction of the vehicle, and the fixed plate portion 210E is arranged along the longitudinal direction of the fixed slit 211E and protrudes downstream of the air passage. It is preferable to have a guide 212.

  The air guide 212 is a plate-like member erected from the peripheral edge of the fixed slit 211E. The air blown through the cold air passage (cold air) is stronger in wind power than the air blown through the hot air passage (hot air), so the flow of hot air is likely to be hindered by the flow of cold air. By providing the guide 212, it is possible to suppress the flow of hot air from being hindered by the flow of cold air. In general, the air conditioned at the downstream side of the air mix mechanism is required to have an appropriate temperature difference between the upper and lower air. By arranging the air guide in the vertical direction, it is possible to guide the warm air upward and obtain air having an appropriate temperature difference.

  The air guide 212 is preferably arranged in the cold air side region Sb. Hot air can be more efficiently guided above the air conditioner. Moreover, it is made easy to flow a warm air to a vent opening part or a defroster opening part.

  Up to this point, the form in which the air guide 212 is provided in the fixed plate portion 210E has been described. However, when the movable plate portion is located downstream of the fixed plate portion in the air passage, the air guide is provided in the movable plate portion. It is done.

  Next, the operation of the vehicle air conditioner will be specifically described. The vehicle air conditioner according to the first embodiment and the vehicle air conditioner according to the second embodiment have the same basic operation. Here, the second embodiment will be described as an example.

  The full hot mode will be described with reference to FIG. The full hot mode is a mode for heating the passenger compartment. In the full hot mode, as shown in FIG. 5, normally, the defroster door 6 is closed, the vent door 7 is closed, and the foot door 8 is set to open. Moreover, the air mix mechanism 200 will be in the state of Fig.7 (a), for example. Then, warm air that has been warmed through the heater core 14 is blown to the foot opening 18.

  FIG. 12 is a schematic diagram illustrating an example of a vehicle air conditioner according to the present embodiment, and illustrates an air mix mode. The air mix mode is a mode for controlling the temperature in the passenger compartment by mixing the air that has passed through the heater core 14 and the air that has not passed through the heater core 14. In the air mix mode, as shown in FIG. 12, normally, the defroster door 6 is closed, the vent door 7 is opened, and the foot door 8 is opened. Moreover, the air mix mechanism 200 will be in the state of FIG.7 (b), for example. Then, the warm air that has been warmed through the heater core 14 and the air or cold air that has not passed through the heater core 14 are mixed in the air mix chamber 12c, and the temperature-controlled air is supplied to the vent opening 17 and the foot opening. 18 is blown.

  FIG. 13 is a schematic diagram illustrating an example of a vehicle air conditioner according to the present embodiment, and illustrates a full cool mode. The full cool mode is a mode for cooling the passenger compartment. In the full cool mode, as shown in FIG. 13, normally, the defroster door 6 is closed, the vent door 7 is open, and the foot door 8 is closed. Moreover, the air mix mechanism 200 will be in the state of FIG.7 (c), for example. Then, air or cold air that has not passed through the heater core 14 is blown to the vent opening 17.

  2 to 4 and 6 to 11, the fixed plate portions 110, 210A, 210B, 210C, 210D, and 210E and the movable plate portions 220, 220A, 220B, 220C, and 220D are arranged with the longitudinal direction of the slit in the upper and lower sides of the vehicle. Although the embodiment has been shown in which the width direction of the slit is directed to the left and right direction of the vehicle, the present invention is not limited to the fixed plate portions 110, 210A, 210B, 210C, 210D, 210E and the movable plate portion 220, It is not limited to the direction in which 220A, 220B, 220C, 220D is arranged. The fixed plate portions 110, 210A, 210B, 210C, 210D, 210E and the movable plate portions 220, 220A, 220B, 220C, 220D may be arranged to be inclined with respect to the vertical direction or the left-right direction of the vehicle.

6 Defroster door 7 Vent door 8 Foot door 10 Vehicle air conditioner 12 Air passage 12a Hot air passage 12b Cold air passage 12c Air mix chamber 13 Case 14 Heater core 14a Heater core front surface 15 Evaporator 16 Defroster opening 17 Vent opening 18 Foot Opening portion 20 Air conditioner 100 for vehicle (100A, 100B) Air mix mechanism 110 Fixed plate portion 111 Fixed slit 120 Movable plate portion 121 Moveable slit 122 Pin 130 Rotating shaft 131 Fine shaft portion 132 Thick shaft portion 132a Spiral groove 200 Air mix Mechanism 210, 210A, 210B, 210C, 210D, 210E Fixed plate portion 211, 211A, 211B, 211C, 211D, 211E Fixed slit 212 Air guide 220, 220A, 220B, 220C, 220 Movable plate portions 221,221A, 221B, 221C, 221D movable slit Sa warm air side area Sb cold air side region

Claims (10)

A case having an air passage for blowing air inside,
A heater core that is disposed inside the case and heats the blown air;
An air conditioner for a vehicle, comprising: an air mix mechanism that is arranged upstream of the air passage from the heater core and adjusts a ratio of an air amount passing through the heater core and an air amount bypassing the heater core. ,
The air mix mechanism has a fixed plate portion and a movable plate portion,
The fixed plate portion has a fixed slit provided through the plate thickness direction,
The movable plate portion has a movable slit provided penetrating in the plate thickness direction, and slidably contacts the fixed plate portion in the width direction of the fixed slit and the movable slit,
As the movable plate portion slides with respect to the fixed plate portion, the combination in which the fixed slit and the movable slit overlap with each other to be in an open state, and the overlap between the fixed slit and the movable slit shift to a closed state. A vehicle air conditioner characterized in that combinations appear simultaneously. The fixed plate portion and the movable plate portion are disposed in one set across a passage for hot air that blows air to the heater core and a passage for cold air that bypasses the heater core,
The arrangement of the fixed slit and the movable slit is as follows:
(1) a full hot mode in which the hot air passage is fully open and the cold air passage is fully closed;
(2) a full cool mode that is fully closed on the side of the hot air passage and is fully open on the side of the cold air passage; and
(3) (i) partially open on the hot air passage side and partially open on the cold air passage side, (ii) partially open on the hot air passage side And (iii) is fully open on the cold air passage side, (iii) is fully open on the hot air passage side, and is partially open on the cold air passage side. An air mix mode including at least one of (iii),
The vehicle air conditioner according to claim 1, wherein the vehicle air conditioner has a regularity for switching between the three modes. The fixed plate portion and the movable plate portion are each disposed in one set in a passage for hot air that blows air to the heater core and a passage for cold air that bypasses the heater core,
(1) A full hot mode in which the movable slit and the fixed slit are fully open on the side of the hot air passage, and the movable slit and the fixed slit are fully closed on the side of the cold air passage,
(2) a full cool mode in which the movable slit and the fixed slit are in a fully closed state on the side of the hot air passage, and the movable slit and the fixed slit are in a fully open state on the side of the cold air passage; and
(3) (i) The movable slit and the fixed slit are partially open on the side of the hot air passage, and the movable slit and the fixed slit are partially open on the side of the cold air passage (Ii) The movable slit and the fixed slit are partially open on the side of the hot air passage, and the movable slit and the fixed slit are fully open on the side of the cold air passage, or (iii) (I) to (i), wherein the movable slit and the fixed slit are fully open on the side of the hot air passage, and the movable slit and the fixed slit are partially open on the side of the cold air passage. an air mix mode including at least one of iii),
The vehicle air conditioner according to claim 1, having the following three modes.   The vehicle air conditioner according to any one of claims 1 to 3, wherein the air mix mechanism has one rotation shaft for sliding the movable plate portion for each movable plate portion.   The vehicle air conditioner according to any one of claims 1 to 4, wherein the fixed plate portion is integral with the case.   The vehicle air conditioner according to any one of claims 1 to 5, wherein the movable plate portion is arranged on the upstream side of the air passage with respect to the fixed plate portion. The rotating shaft is arranged with the axial direction facing the same direction as the sliding direction of the movable plate part,
A pin provided on the movable plate portion engages with a spiral groove provided on a side surface of the rotation shaft, and the pin moves along the spiral groove as the rotation shaft rotates. The vehicle air conditioner according to claim 4, wherein the movable plate portion slides. The fixed slit and the movable slit are arranged with the longitudinal direction of the fixed slit and the movable slit facing the vertical direction of the vehicle,
Of the fixed plate portion or the movable plate portion, the plate portion on the downstream side of the air passage is disposed along the longitudinal direction of the slit provided in the plate portion, and projects to the downstream side of the air passage. It has an air guide, The vehicle air conditioner as described in any one of Claims 1-7 characterized by the above-mentioned.   The vehicle air conditioner according to claim 8, wherein the air guide is disposed on a cold air passage side that bypasses the heater core.   The vehicle air conditioner according to any one of claims 1 to 9, wherein a sliding direction of the movable plate portion is a left-right direction of the vehicle.

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