JP2000335231A - Air conditioning unit for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To regulate the movement of a case, make installation of an air conditioning unit to a vehicle easy, and prevent degradation of appearance seen from the vehicle inside by providing a reference engaging portion on a bracket fixed to a roof panel, and a reference fixing portion, which is engaged with the reference engaging portion, on a case. SOLUTION: A bracket 5 is fixed to a roof panel of a vehicle. A reference bolt 29 welded to the bracket 5 is inserted into a reference hole 39 of a case 17 to determine the reference position. Also, positioning bolts 35, 37 provided at left and right sides of the bracket 5 are inserted into positioning holes 45, 47 provided at left and right sides of the case 17. Therefore, positioning is done based on these three points. Since the reference bolt 29 is inserted into the reference hole 39 at the center of the case 17 in a longitudinal direction, dimensional variations between bolt tightening portions of the bracket 5 and the case 17 can be made small, even if there are variations in elongation and dimensional errors of the case 17. Consequently, the bracket 5 and the case 17 can be connected easily and accurately.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioning unit for a vehicle which is installed on a ceiling of a vehicle and blows conditioned air into the room from the ceiling.

[0002]

2. Description of the Related Art In general, an air conditioner mounted on a vehicle is mounted on a ceiling of a so-called one-box car or the like, and a ceiling-mounted type air conditioner for blowing conditioned air (cool air) mainly toward a rear seat in a vehicle cabin. Units are known (for example, JP-A-9-290625).

In a conventional air-conditioning unit, as shown in FIG. 9, an air-conditioning case 105 containing an evaporator 101 and a blower 103 is mounted on a roof panel 106 of a vehicle.
The air-conditioning case 105 is fixed by bolts on brackets 107 fixed to the roof panel 106 on both sides in the longitudinal direction. A decorative lining panel (molded ceiling) 109 provided inside the roof panel 106
Is attached to a roof element (roof bow) 111. Note that the roof element 111 is generally bonded and fixed to the roof panel 106, and the air conditioning case 1
A heavy object like 05 cannot be attached.

The air-conditioning case 105 has a longitudinal direction in the width direction of the vehicle.
When fixing 05, as shown in FIG. 10, bolts are inserted through holes 113, 115, 117 and 119 provided at four ends in the longitudinal direction of the air conditioning case 105,
It is fixed by a welding nut 121 welded and fixed to the bracket 107.

Further, in another prior art, a bracket 10 is provided.
7 and an air-conditioning case 105 are integrally fixed to a vehicle body.

[0006]

However, in the first prior art shown in FIG. 9, since a space S is formed between the air conditioning case 105 and the lining panel 109 at the installation portion of the air conditioning case 105, There is a problem that the appearance from the room is spoiled. On the other hand, the roof element 11
It is conceivable to fill the space S by disposing an elastic filler material such as urethane resin between the base material 1 and the lining panel 109. However, since the dimensions of the space S vary depending on the vehicle body, the fillers of various sizes are provided. It is difficult to deal with by filling, and if a large elastically deformable filler is used and the space S is small and the filler is crushed and applied, There is an inconvenience that the work of attaching the air conditioning case becomes difficult because the elastic restoring force acts on the filler.

[0007] In the second prior art shown in FIG.
One end of the air conditioning case 105 in the longitudinal direction is the reference hole 11.
3, 117, there is an inconvenience that the dimension of the other end side of the air conditioning case 105 with respect to the bracket 107 varies greatly. Such a variation in dimensions of the air-conditioning case overlaps with a variation in vehicle body dimensions in the width direction, thereby forming a large space between the air-conditioning case and the side wall portion of the vehicle body, thereby injuring the appearance from the vehicle interior. There is.

Further, the air-conditioning case 105 and the bracket 1
Even after attachment with the air conditioner 07, the resin air-conditioning case 105 expands and contracts due to a change in the temperature in the vehicle interior, and the expanded and contracted dimensions are concentrated at one end in the longitudinal direction, so that a gap is easily generated between the air conditioning case 105 and the vehicle body side wall. There is.

In the third prior art in which the air-conditioning case 105 and the bracket 107 are integrated, there is a problem that the weight when the air-conditioning case 105 is mounted on the vehicle is large, and it is difficult to mount the air-conditioning case 105 on the vehicle.

SUMMARY OF THE INVENTION An object of the present invention is to provide a ceiling-mounted vehicle air-conditioning unit which can be easily attached to a vehicle and does not impair the appearance of the vehicle from the interior.

[0011]

In order to achieve the above object, according to the first aspect of the present invention, a case of an air conditioning unit containing an evaporator and a blower is attached to a bracket fixed to a roof panel by fastening. In the ceiling-installed vehicle air conditioning unit, the bracket includes a reference engagement portion provided at substantially the center thereof and serving as a reference for positioning, and the case is provided at substantially the center in the longitudinal direction of the case with the reference engagement of the bracket. The reference engagement portion engages with the reference engagement portion, and the reference engagement portion restricts movement of the reference engagement portion in the longitudinal direction of the case.

According to the first aspect of the present invention, when the air conditioning unit is mounted on the vehicle, the reference locking portion of the case is engaged with the reference engagement portion of the bracket to position the case with respect to the bracket. The case and the fastening part of the case are matched and fixed. Since the reference engagement portion is located substantially at the center in the longitudinal direction of the case, each fastening portion between the case and the bracket around the case is compared with the case where the reference engagement portion is at the end of the case. The distance between the reference engaging portion and the fastening portion of the above need only be short. Accordingly, there is little displacement in the fastening portion due to dimensional errors, expansion and contraction of the case, and the like, and the case and the bracket can be easily fastened, so that the case is easily attached.

Further, since the bracket and the case are separate from each other, and the case can be fixed to the bracket in a state where the bracket is fixed to the vehicle, the weight of the bracket is not applied to the case at the time of mounting. is there.

On the other hand, after installing the vehicle air conditioning unit,
Even when the case expands or contracts due to a temperature change in the vehicle interior or the like, since the reference engagement portion is located substantially at the center in the longitudinal direction of the case, the length of expansion and contraction at both ends in the longitudinal direction can be reduced. Therefore, the gap around the case caused by the expansion and contraction of the case can be reduced, and the appearance from the vehicle interior is hardly impaired.

According to a second aspect of the present invention, in the first aspect of the present invention, the bracket includes left and right engaging portions for positioning both sides in the width direction of the vehicle, and the bracket is provided in the longitudinal direction of the case. At both ends, left and right engaging portions of the bracket are engaged, and left and right engaging portions are provided to allow the left and right engaging portions to move in the longitudinal direction of the case.

[0016] According to the second aspect of the present invention, the first aspect is provided.
In addition to the effects described in (1), both ends in the longitudinal direction of the case are configured to engage with the bracket while allowing the case to move in the longitudinal direction. Can be easily positioned. In addition, since the positioning is performed at three points, that is, the substantially center of the case and the left and right ends, the positioning can be reliably performed, and the fastening portion between the bracket and the case is easily aligned, so that the mounting is easy.

According to a third aspect of the present invention, in the first or second aspect, each of the engaging portions is a bolt, and each of the locking portions is a long hole. It is.

According to the third aspect of the present invention, in the first aspect,
Or the effect described in 2 above, and since the engaging portion and the locking portion to be positioned also serve as the fastening portion, they can be fastened as they are in the positioned state. Since there is no need to provide the above, the configuration is simple.

According to a fourth aspect of the present invention, in the third aspect of the present invention, the fastening portion between the case and the bracket is formed with irregularities on a fastening surface with a bolt or a nut. It is.

According to the fourth aspect of the present invention, the third aspect is provided.
And the fastening surface has irregularities, and the contact area at the fastening portion can be reduced because the fastening portions do not contact each other over the entire surface. Therefore, when the case expands and contracts after being attached to the vehicle, the frictional resistance of the fastening portion is small, so that the case can be expanded and contracted at the fastening portion, and damage due to the case expansion and contraction can be prevented.

According to a fifth aspect of the present invention, in the first or the second aspect of the present invention, the engaging portion is a hole, and the locking portion is a projection that engages with a hole of each long hole. It is characterized by being.

According to the fifth aspect of the present invention, the first aspect is provided.
In addition to the operation and effect described in the item 2, the case can be provided with a projection serving as a locking portion by integral molding, which facilitates manufacture.

According to a sixth aspect of the present invention, a lining panel is provided inside a roof panel of a vehicle, and a case of an air conditioning unit accommodating an evaporator and a blower is mounted on a roof panel bracket on a ceiling. In the air conditioning unit for a vehicle, the case includes a grip portion that grips the lining panel.

According to the sixth aspect of the present invention, the vehicle is provided with a decorative lining panel for covering the roof panel from the inside, and when the air conditioning unit is mounted on the vehicle,
The lining panel is directly attached to the grip provided on the case of the air conditioning unit. Therefore, it is possible to prevent a gap from being formed between the case and the lining panel around the case, and it is unlikely that the appearance of the vehicle from the indoor side is impaired.

Further, since the grip portion is provided on the case, it is not necessary to separately fix the lining panel and the roof panel around the case, the configuration is simple, and the lining panel can be easily attached.

According to a seventh aspect of the present invention, in the sixth aspect of the present invention, the grip portion includes a tongue piece integrally provided along a width direction of the vehicle at an upper portion of the case. A lining panel is sandwiched between the portion.

According to the invention described in claim 7, according to claim 6,
And the tongue piece is simply provided integrally with the case at the top of the case, so that the configuration is simple and the production of the gripping portion is easy.

[0028]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 to FIG.
The first embodiment of the present invention will be described in detail with reference to FIG.

An air conditioning unit 1 for a vehicle according to an embodiment of the present invention includes a unit main body 3 and a bracket 5, and is installed on a ceiling of the vehicle. That is,
As shown in FIGS. 6 and 7, in the vehicle 7, the unit main body 3 is installed on a rear side ceiling of a driver's seat 8, and the unit main body 3 is a decorative lining panel (formed ceiling) provided on a roof panel 9. 11a and 11b.

The bracket 5 includes the lining panels 11a, 1
1b and the roof panel 9 are fixed to the side portions 9a and 9b of the roof panel in the width direction of the vehicle, so that the bracket 5 can be supported even when receiving a large load.

The unit body 3 is provided in the vehicle width direction with the vehicle width direction taken as a longitudinal direction. The unit main body 3 takes in room air from the front side on the driver's seat 8 side and air-conditions the rear side on the rear seat side. To blow.

The roof panel 9 includes a bracket 5
The roof element 13 is provided in the same direction as
The roof element 13 is adhered to the roof panel with an adhesive and cannot receive a heavy load, and thus the lightweight lining panels 11a and 11b are attached.

As shown in FIG. 1, the unit main body 3 mainly comprises an evaporator 15, a centrifugal fan 16, and a case 17 for accommodating them. The case 17 is provided with an air suction port 19 on the front side and a grill 21 on the rear side. The grill 21 is adjusted to change the direction of the blown air.

The case 17 is divided into an upper half case 17a and a lower half case 17b, and the upper half case 17a has a substantially plate shape.
b is formed in a curved shape protruding toward the indoor side.
The evaporator 1 described above is attached to the lower half case 17b.
5 and a centrifugal fan 16 are housed. In the present embodiment, the evaporator 1 is mounted on the lower half case 17b.
5 and a motor (not shown) of the centrifugal fan 16 are fixed.

The upper half case 17a is made substantially plate-shaped,
By forming the lower half case 17b into a curved shape, the fitting seam of these half cases is located near the lining panels 11a and 11b, and the seam is difficult to see from the vehicle interior, so that the appearance is good.

Here, the bracket 5 and the case 17 will be described with reference to FIGS. Bracket 5
A shaft portion 23 extending along the width direction of the vehicle and a shaft portion 23
And arm portions 25, 25 provided on both sides of the shaft. The shaft portion 23 and the arm portions 25, 25 form a substantially U-shape. Bolts 31 and 33 for screw fixing to the vehicle body are welded and fixed to both ends of the shaft portion 23. A reference bolt (reference engagement portion) 29 is welded and fixed to the bracket 5 at substantially the center of the shaft portion 23 in the longitudinal direction. Positioning bolts (left and right engaging portions) 35 and 37 are also welded and fixed to the distal end of the arm 25.

A reference hole (reference locking portion) 39 is formed in the case 17 at a substantially central portion in the width direction, and a reference bolt 29 is inserted into the reference hole 39. The reference hole 39 is a long hole that is long in the short direction of the case (the front-rear direction of the vehicle), and the width W of the long hole is approximately equal to the outer diameter of the reference bolt 29. Although movement in the direction is permitted, movement in the longitudinal direction (the width direction of the vehicle) is restricted. On both sides in the longitudinal direction of the case 17, grooves 41, 43 for inserting the above-mentioned bolts 31, 33 are formed, so that positioning bolts 35, 37 can be inserted from the opening side of the groove. Therefore, the positioning bolts 35 and 37 can be easily inserted and easily attached. The grooves 41 and 43 are formed in a long hole shape elongated in the longitudinal direction of the case 17, so that relative expansion and contraction and dimensional variation of the case 17 with respect to the bracket 5 in the longitudinal direction can be tolerated. .

As shown in FIGS. 4 and 5, nuts 4 screwed into positioning bolts 35, 37 are provided in the grooves 41, 43.
An uneven surface 51 is formed on the surface on the 9th side.
A washer 53 is interposed between the nut 1 and the nut 49. As described above, the surface to which the bolt is fastened is the uneven surface 51, so that the case 17 and the bracket 5 at the fastening portion are provided.
Can be reduced, and when the case 17 expands and contracts, the case is allowed to move in the fastening portion.
Breakage and damage of the case can be prevented. In addition, the uneven surface 51 of the fastening portion has a positioning hole (or groove) 45, which will be described later,
47 may be provided.

The left and right positioning holes 4 are provided on both sides in the longitudinal direction of the case 17 on the front side of the vehicle with respect to the reference hole 39.
5, 47 are formed. One of the positioning holes 45 is a slot through which the positioning bolt 35 of the bracket 5 is inserted, and is a long hole that is long in the longitudinal direction of the case 17 so that relative expansion and contraction of the case 17 with respect to the bracket 5 can be tolerated. It has become. The width W of the elongated hole is substantially the same as the outer diameter of the positioning bolt 37, and regulates the position of the bolt in the longitudinal direction of the vehicle.

The other positioning hole (groove) 47 is a slot through which the positioning bolt 35 of the bracket 5 is inserted, and is a long groove in the longitudinal direction of the case 17. If it does, it is acceptable. The width W of the elongated hole is also substantially the same as the outer diameter of the positioning bolt 37, similarly to the one hole 45 described above, and regulates the position of the bolt in the front-rear direction of the vehicle. The other positioning hole 47 is formed in a groove shape with an open side, so that the positioning bolt 35 is formed.
Can be easily inserted from the side.

On the other hand, a grip portion 53 for gripping the lining panel 11a is provided on the front side of the upper portion of the case 17, and the grip portion 53 is provided on the upper half case 17a.
And an elastically deformable tongue 55 protruding from the upper surface of the tongue. A plurality of tongue pieces 55 are provided in a row toward the front side so as to form a groove 50 (see FIG. 1) between the tongue piece 55 and the case portion. These tongue pieces 55 are integrally formed at the same time when the upper half case 17a is formed. The tongue piece 55 can be easily die-cut when the upper half case 17 is manufactured, and is easy to manufacture.

Next, the operation of the present embodiment will be described. When the air conditioning unit 1 is mounted on a vehicle, the bracket 5 is fixed to the roof panel 9 in a manufacturing process of the vehicle,
The unit body 3 is attached to the bracket 5.

The unit body 3 is mounted by inserting a reference hole 39 into a reference bolt 29 welded and fixed to the bracket 5 to position the reference position, and then positioning bolts 35 provided on the left and right sides of the bracket 5. The positioning holes 45 and 47 are inserted through 37, and positioning is performed at a total of three points. In this case, since the reference bolt 29 is inserted into the reference hole 39 at substantially the center of the case 17 in the longitudinal direction, even if the expansion and contraction of the case 17 and the variation in dimensional error occur, each bolt fastening between the bracket 5 and the case 17 is performed. The dimensional difference between the position of the bolt and the hole in the portion can be reduced, and the fastening can be facilitated. In addition, since positioning is performed at three points, positioning accuracy is high, and the bracket 5 and the case 17 after positioning are positioned.
Can be easily connected.

The reference hole 39 is allowed to move back and forth (in the short direction of the case) of the reference bolt 29, and the positioning holes 45 and 47 are allowed to move left and right (in the longitudinal direction of the case). Therefore, it is easy to insert the positioning bolts 35 and 37 into the positioning holes 45 and 47.

After the positioning, the reference bolt 29 and the positioning bolts 35 and 37 are fixed with nuts.
And 33 are fixed to the grooves 41 and 43 by tightening with nuts 49.

On the other hand, the rear side lining panel 11b is fixed to the roof element 13 in advance, and the front side lining panel 11a is fixed to the unit main body 1 and then to the grip portion 5
3 and inserted under the tongue 53. Thus, the front lining panel 11a can be easily attached simply by inserting it into the grip portion 53, and the lining panel 11a is held by the elasticity of the tongue piece 55 after insertion.

Since the lining panel 11b is configured to be directly attached to the case of the unit body 1, formation of a gap between the lining panel 11b and the unit body 1 can be prevented, and the appearance from the vehicle interior is good.

After the air conditioning unit 1 is attached,
Since the temperature difference in the vehicle compartment is large due to the influence of the season such as summer and winter, solar radiation, etc., the resin case 17 may expand and contract due to temperature change. When such expansion and contraction of the case 17 occurs, the reference hole 39 is provided substantially at the center of the case 17 in the longitudinal direction.
Since the reference hole 39 expands and contracts on both sides from the substantially central reference hole 39, the length from the reference hole 39 to the positioning holes 45 and 47 on both left and right sides in the longitudinal direction is equal to the length of the reference hole 3.
The extension and contraction amount can be reduced to about half as compared with the case where 9 is provided at the end in the longitudinal direction. Therefore, even when the case 17 expands and contracts, the gap around the unit body 3 can be reduced, and the appearance is good.

Further, from the reference hole 39 to the positioning hole 4
Since the amount of expansion and contraction to 5, 47 and the fixing grooves 41 and 43 is small, breakage due to expansion and contraction at these fastening portions can be prevented. In addition, these holes 41, 43, 45, 47
Since the long groove allows the bolt engaging with the hole to move in the longitudinal direction, breakage due to expansion and contraction hardly occurs.
In particular, when the case 17 expands and contracts, as shown in FIGS. 4 and 5, the fastening portion between the bolt and the nut has an uneven surface 5.
1, the friction is reduced, so that expansion and contraction of the case 17 can be allowed, and it is difficult for an excessive force to be applied to the fastening portion, so that damage of the case 17 can be prevented.

Next, a second embodiment will be described with reference to FIG. 8. In the embodiment described below, the same parts as those in the above-described embodiment are denoted by the same reference numerals. Therefore, detailed description of the portions will be omitted, and the points different from the first embodiment will be mainly described.

In the second embodiment, the positioning member and the fastening portion are provided separately. That is, the bracket 5
A reference engagement hole (reference engagement portion) 57 is provided at a substantially center of the case 17 and serves as a reference for positioning.
Is protruding. Similarly, positioning holes 61 and 63 are provided on the left and right sides of the bracket 5, and a positioning projection 65 engaging with these positioning holes 61 and 63 is provided on the case 17.
67 are formed.

A nut 68 screwed to the bolt is fixed to the bracket 5 by welding, and the bolt is inserted into the grooves 69 and 71 and the long holes 73 and 75 of the case to be fixed. .

In the second embodiment, the same functions and effects as those of the first embodiment can be obtained.

The present invention is not limited to the above-described embodiment, but can be variously modified without departing from the gist of the present invention.

For example, the holding portion 53 is not limited to being provided on the front side of the case 17 and holding only the front lining panel 11a, but is also provided on the rear side of the case 17 to provide the rear lining panel 11b. May also be held.

The grip 53 is not limited to being provided integrally with the case 17, but may be provided separately.

Further, the positioning hole 45 may be a groove, and each of the grooves 41 and 43 and the positioning hole 4 formed in a groove shape.
7 may be a hole.

[0058]

According to the first aspect of the present invention, since the reference engagement portion is located substantially at the center in the longitudinal direction of the case, the distance from the reference engagement portion to each fastening portion between the case and the bracket is increased. Is short, and there is little displacement in the fastening portion due to dimensional errors, expansion and contraction of the case, and the like. Further, the gap around the case caused by the expansion and contraction of the case can be reduced, and the appearance from the vehicle interior is hardly impaired.

Also, since the bracket and the case are separate from each other and the case can be fixed to the bracket in a state where the bracket is fixed to the vehicle, the weight of the bracket is not applied to the case at the time of mounting, so that the mounting is easier. is there.

According to the invention described in claim 2, according to claim 1
As described above, the positioning is performed at three points, that is, the substantially center of the case and the left and right ends, so that the positioning can be reliably performed, and the fastening portion between the bracket and the case is easily aligned. Easy. Also, since the positioning and locking portion allows the case to move in the longitudinal direction,
Positioning can be easily performed even if the case has expansion or contraction or variations in dimensions.

According to the third aspect of the present invention, the first aspect is provided.
In addition to the effect described in 2 above, since the positioning engaging portion and the locking portion also serve as the fastening portion, the positioning portion can be fastened as it is, and the mounting work is easy, and the separate fastening portion is provided. It is not necessary to provide
The configuration is simple.

According to the invention set forth in claim 4, according to claim 3,
In addition to the effect described in the above, the fastening surface has irregularities,
Since the frictional resistance is reduced by reducing the contact area at the fastening portion, when the case expands and contracts, the case can be expanded and contracted, and damage due to the case expansion and contraction can be prevented.

According to the invention set forth in claim 5, according to claim 1,
In addition to the effects described in 2 above, the case can be provided with a projection serving as a locking portion by integral molding, which facilitates manufacture.

According to the sixth aspect of the present invention, since the lining panel is directly attached to the grip provided on the case of the air conditioning unit, a gap is formed between the case and the lining panel around the case. Can be prevented, and the appearance of the vehicle from the indoor side is rarely impaired.

Further, since the grip is provided on the case, it is not necessary to separately fix the lining panel and the roof panel around the case, so that the structure is simple and the lining panel can be easily attached.

According to the invention of claim 7, according to claim 6,
In addition to the effects described in (1), since the tongue piece is simply provided on the upper part of the case, the structure is simple and the manufacture of the gripping part is easy.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an installed state of a vehicle air conditioning unit according to a first embodiment of the present invention.

FIG. 2 is a plan view of the vehicle air conditioning unit shown in FIG.

FIG. 3 is a plan view showing a bracket and a case of the vehicle air conditioning unit shown in FIG. 2;

FIG. 4 is a sectional view of a fastening portion between a case and a bracket.

FIG. 5 is a plan view of a groove of the case shown in FIG. 4;

FIG. 6 is a schematic diagram of a vehicle equipped with an air conditioning unit.

7 is a cross-sectional view of the vehicle shown in FIG.

FIG. 8 is a plan view of a bracket and a case according to a second embodiment.

FIG. 9 is a cross-sectional view showing an installation state of a conventional vehicle air conditioning unit.

FIG. 10 is a plan view showing a conventional bracket and a case.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Air-conditioning unit for vehicles 5 Bracket 9 Roof panel 11a, 11b Lining panel 15 Evaporator 16 Centrifugal fan 17 Case 29 Reference bolt (reference engagement part) 35, 37 Positioning bolt (right and left engagement part) 39 Reference hole (reference member) Stop part) 45, 47 Positioning hole part (right and left locking part) 53 Grip part 55 Tongue piece

Claims (7)

[Claims] 1. A ceiling-mounted vehicle air-conditioning unit in which a case of an air-conditioning unit containing an evaporator and a blower is fastened to a bracket fixed to a roof panel and attached thereto, wherein the bracket is positioned substantially at the center thereof. The case is provided with a reference engagement portion at a substantially center in the longitudinal direction of the case, the reference engagement portion being engaged with a reference engagement portion of the bracket, and the reference engagement portion is provided with a reference engagement portion. An air-conditioning unit for a vehicle, wherein the air-conditioning unit restricts movement of a part in a longitudinal direction of the case. 2. The bracket has left and right engaging portions for positioning both side portions in the width direction of the vehicle, and left and right engaging portions of the bracket engage with both longitudinal end portions of the case. The vehicle air conditioning unit according to claim 1, further comprising left and right locking portions that allow the left and right engagement portions to move in the longitudinal direction of the case. 3. The locking device according to claim 1, wherein each of the engaging portions is a bolt, and each of the locking portions is a long hole.
2. The air conditioning unit for a vehicle according to claim 1. 4. The ceiling-mounted vehicle air conditioning unit according to claim 3, wherein the fastening portion between the case and the bracket has an uneven surface formed on a fastening surface between the case and the bolt. 5. The ceiling-mounted type according to claim 1, wherein the engaging portion is a hole, and the locking portion is a protrusion that engages with a hole of each of the long holes. Air conditioning unit for vehicles. 6. A ceiling-mounted vehicle air-conditioning unit in which a lining panel is provided inside a roof panel of a vehicle and a case of an air-conditioning unit containing an evaporator and a blower is attached to a bracket of the roof panel. An air conditioning unit for a vehicle, wherein the case includes a grip portion for gripping the lining panel. 7. The grip portion includes a tongue piece integrally provided along a width direction of the vehicle at an upper portion of a case, and a lining panel is sandwiched between the tongue piece and the case portion. Item 7. The vehicle air conditioning unit according to item 6.