JP4098467B2 - Air conditioner sliding door structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a slide door structure of an air conditioner suitable for an automobile.
[0002]
[Prior art]
Conventionally, in an air conditioner, for example, a mix door that performs switching control so that air from a blower passes through a cooling heat exchanger, or passes through a cooling heat exchanger and a heating heat exchanger in this order. In this case, a cantilever door type and a sliding door type are known.
[0003]
[Problems to be solved by the invention]
In the case of a cantilever door, switching control is performed by rotating the free end side with the hinge as a fulcrum, but because it is cantilevered, it is easily affected by the wind pressure hitting the door surface. It is technically difficult to fix and support accurately at a predetermined opening position in a mode with many modes.
[0004]
On the other hand, a slide door has elements such as a slide door, a drive gear, a drive shaft, and the like as disclosed in JP-A-11-5430, and the slide door is slidably held. The door sliding groove provided in the case part, the drive gear is the door gear part, and the drive shaft is assembled with the gear and the case shaft holding hole fitted together, making the work difficult and easy to assemble Is not desirable.
[0005]
In addition, since the gear structure uses a drive motor and a drive gear as the drive means of the drive shaft for sliding the door, the number of parts is increased and the cost is increased, which is not desirable in terms of cost.
[0006]
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a slide door structure for an air conditioner having a simple structure with a small number of parts while managing a sealing surface at a single location.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, according to a first aspect of the present invention, there is provided a housing having a door opening arranged in the periphery of the ventilation passage opening of the ventilation passage of the unit case, and is slidably arranged along the housing. A single sliding door body that controls the opening to open the lower half of the door opening when sliding to the top , the upper half and the lower half opening in the middle, and the upper half opening when sliding to the lowest position. When, characterized in that it comprises a seal member adjoining air passage opening peripheral edge and bullets of the air passage is provided along the outer periphery of the sliding door body, and driving means for the slide drive the scan Raidodoa body.
[0008]
Thereby, the opening degree of the door opening can be controlled by sliding the slide door body.
[0009]
On the other hand, upon completion sliding of the sliding door body, the sealing member is air passage opening peripheral edge and the bullet against each other result in the unit case also serves as a seal of the door around the sheet seal member of only door portion comprising a sliding door body one It will be done in places . It is very preferable in terms of seal management.
[0010]
According to a second aspect of the present invention, the drive means includes a drive shaft that spans the housing and has a door lever, a drive gear that is fixedly supported by the drive shaft and meshes with a gear portion of the slide door body, and the door lever. It consists of a drive cable that drives directly and gives rotational power to the drive shaft.
[0011]
Thus, the door lever is directly driven by the operation of the drive cable, and rotational power is applied to the drive shaft. In this case, since the driving means is a single functional part that is directly driven by the driving cable, the structure is simplified, the assembly is easy, and the cost is not increased.
[0012]
According to the third aspect of the present invention, the drive gear that meshes with the gear portion of the slide door body is formed as a sector gear provided with an arcuate gear, while the gear portion of the slide door body It is a rack provided in the inner central part of the door body.
[0013]
Thereby, the slide door body is slid and driven by the rotation of the sector gear. Since the drive part of the slide door body at this time is one place in the central part, a stable drive state with a simple structure and good balance can be obtained without driving the left and right sides.
[0014]
【The invention's effect】
According to the slide door main body structure of the air conditioner of the present invention, the slide door main body disposed on the outer peripheral surface of the housing needs only one sealing surface, and the slide door main body can be directly driven by the drive cable. Therefore, it has a simple structure with a small number of parts, which is very preferable in terms of assembly and cost.
[0015]
In addition, a stable drive state with a good balance can be obtained by the substantially central drive portion of the slide door body.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be specifically described with reference to FIGS. 1 to 7.
[0017]
FIG. 1 shows a schematic cut side view of the air conditioner. In the unit case 1 of the air conditioner, first, second, and third mode doors 9, 11, and 13 including a blower 3, a heat exchanger 5 for cooling, and a heat exchanger 7 for heating are arranged, respectively. ing.
[0018]
The blower 3 functions to take in air from the outside or the room by the switching operation of the intake door 15 to a solid line and a chain line and blow the air toward the cooling heat exchanger 5.
[0019]
The cooling heat exchanger 5 is arranged almost horizontally, and a compressor, a condenser, and an expansion valve (not shown) constitute a refrigeration cycle.
[0020]
Therefore, heat is exchanged and cooled when air passes from the top to the bottom of the heat exchanger 5 for cooling as shown by the arrow.
[0021]
The heating heat exchanger 7 is disposed substantially horizontally on the downstream side of the cooling heat exchanger 5 and is provided with heat from an engine (not shown) through a pipe.
[0022]
Therefore, heat is exchanged when air passes from the bottom to the top of the heat exchanger 7 for heating as indicated by the arrow, and heat is applied.
[0023]
The first mode door 9 has a state in which the air that has passed through the cooling heat exchanger 5 is allowed to pass through the heating heat exchanger 7 as indicated by solid arrows and dotted arrows, and is not allowed to pass through the heating heat exchanger 7. Are mixed doors that switch to an arbitrary ratio.
[0024]
In the second and third mode doors 11 and 13, the second mode door 11 is a vent door and the third mode door 13 is a differential foot door. The vent port 12, the differential port 14, and the foot port 16 can be controlled to open and close.
[0025]
On the other hand, as shown in FIG. 1, the first mode door 9 has a slide door type structure in which a slide door main body 19 is slidably assembled in an arc shape along the outer peripheral surface of the housing 17.
[0026]
The housing 17 includes an arcuate door 21 having a large front opening and left and right side walls 25 having bearings 23. The housing 17 is disposed and fixed to a ventilation path 27 in the unit case 1.
[0027]
Guide grooves 29 are provided inside the side walls 25 of the housing 17, and the guide grooves 29 have a shape that is divided into upper and lower portions at a substantially central portion. Both end regions of the upper guide groove 29 a and the lower guide groove 29 b which are divided into upper and lower portions are rising guide groove surfaces 23 which are raised by one step from the general guide groove surface 31.
[0028]
The slide door main body 19 is formed in an arc shape and is provided with a seal member 35 such as packing along the outer peripheral edge.
[0029]
When the sliding door body 19 is slid to the uppermost position by the driving means 39, the lower half of the door opening 21 is opened, the upper half and the lower half are opened in the middle, and the upper half is opened when slid to the lowermost position. It is made to the size to do.
[0030]
On both sides of the slide door main body 19, a pair of rollers 41, 41 are rotatably supported by a roller shaft 39. The upper roller 41 is rotatably assembled along the upper guide groove 29a, and the lower roller 41 is rotatably assembled along the lower guide groove 29b.
[0031]
Each roller 41 is pushed up by one step when the slide reaching the ascending guide groove surface 33 is completed, so that the seal member 35 comes into strong elastic contact with the air passage opening peripheral edge 37 described above. Further, when each roller 41 is in the general guide groove surface 31 that is lowered by one step from the ascending guide groove surface 33, the seal member 35 is slightly retracted from the air passage opening peripheral edge 37 and separated from the air passage opening peripheral edge 37, and the slide door body 19 slides are possible.
[0032]
A drive shaft 43 is rotatably supported on bearings 23 provided on both side walls 25 of the housing 17. A fan-shaped sector gear 45 is provided at the central portion of the drive shaft 43, and the gear portion 45 a of the sector gear 45 is engaged with the gear portion 47 of the slide door main body 19.
[0033]
Both ends of the gear portion 45a of the sector gear 45 have a shape in which the tooth height increases sequentially as shown in FIG. 7, and even if the sector gear 45 rotates largely, the end gear portion 45a The smooth engagement with the gear portion 47 of the slide door main body 19 is always ensured.
[0034]
The gear portion 47 of the slide door main body 19 is a rack provided at a substantially central portion inside the slide door main body 19, and the driving force is set so as to act on the substantially central portion of the slide door main body 19.
[0035]
One of the drive shafts 43 protrudes from the side wall 25, and a door lever 49 is integrally fixed and supported by the protruding portion.
[0036]
The door lever 49 is driven by the operation of the drive cable 51 (arrow A) so that the drive shaft 43 is given rotational power of right rotation and left rotation.
[0037]
The drive cable 51 includes an inner cable 53 and an outer tube 55, and one of the inner cables 53 is coupled to the door lever 49. One of the outer tubes 55 is structured to be fixedly supported by an outer tube holding portion 57 provided on the side wall 25 of the housing 17, and is driven by a drive cable 51, a door lever 49, a drive shaft 43, and a sector gear 45. 39 is constituted.
[0038]
Further, the drive cable 51, the housing 17, and the slide door main body 19 have a door unit structure assembled integrally, and the drive cable 51 is driven and controlled by a drive unit (not shown). In FIG. 1, reference numeral 57 denotes upper and lower ribs provided on the housing 17. As shown in FIG. 2, the rib 57 has a positioning function that engages with the engagement groove 59 in the unit case 1 when the housing 17 is assembled in the unit case 1 and a function that keeps repulsion at the time of door packing seal. Have.
[0039]
According to the slide door structure configured as described above, the slide door body 19 slides by directly driving the door lever 49 by the drive cable 51. Since the driving at this time is performed by the driving cable 51 which is a single functional component, the structure is simple. In addition, since the sliding door body 19 has a driving force that is surely applied to an almost intermediate portion, a driving force with a good balance can be given even though it has a simple structure.
[0040]
On the other hand, when the sliding of the sliding door body 19 is completed, the sealing member 35 is elastically contacted with the ventilation path opening peripheral edge 37 of the unit case 1, so that it also serves as a seal around the door, so that only one sealing surface is required.
[0041]
In addition, although it is a mix door in this embodiment, it is also possible to implement to each mode door.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of an overview of an entire slide door structure according to the present invention.
FIG. 2 is a schematic cut-away view of an air conditioning apparatus embodying the present invention.
FIG. 3 is a plan view of a sliding door main body.
4 is a cross-sectional view taken along line AA in FIG.
FIG. 5 is a front view of a sector gear.
FIG. 6 is a side view of a sector gear.
7 is an enlarged view of part B in FIG.
FIG. 8 is a partial explanatory view showing a relationship among a unit case, a housing, and a slide door main body.
[Explanation of symbols]
17 Housing 19 Slide door body 21 Door 35 Seal member 39 Drive means 43 Drive shaft 45 Drive gear 47 Gear portion 49 of slide door body Door lever 51 Drive cable

Claims (3)

A housing (17) having a door opening (21) disposed in a ventilation path opening peripheral edge (37 ) of the ventilation path (27) of the unit case (1), and is slidably disposed along the housing (17); One slide for controlling the opening degree so that the lower half of the door opening (21) opens when it is slid to the uppermost position, the upper half and the lower half are opened in the middle, and the upper half is opened when it is slid to the lowest position. a door body (19), and said sliding door body (19) air passage opening peripheral edge (37) adjoining the bullet a sealing member (35) of the provided along the outer periphery the air passage (27) of the scan Raidodoa body A slide door structure for an air conditioner, comprising: a drive means (39) for slidingly driving (19). The drive means (39) spans the housing (17) and has a drive shaft (43) having a door lever (49), and is fixedly supported by the drive shaft (43), and the gear portion (47) of the slide door body (19). The drive gear (45) that meshes with the drive lever (49) that directly drives the door lever (49) and applies rotational power to the drive shaft (43). Air conditioner sliding door structure. The drive gear (45) that meshes with the gear portion (47) of the slide door main body (19) is formed as a sector gear provided with an arcuate gear, while the gear portion (47) of the slide door main body (19). The slide door structure for an air conditioner according to claim 2, wherein the rack is a rack provided at an inner central portion of the slide door body (19).

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