JPH0930239A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cooling unit preventing rainwater and mud, entering from the outside of a cabin, from infiltrating into the cabin. SOLUTION: A groove 126 is provided upstream of a filter 200 provided on the first opening part side of a cooling unit body case 100, and a first space part 4a is provided to communicate the groove 126 with the inside of the cooling unit body case 100. Rainwater and mud are accumulated in the groove 126 and poured into a discharge hole 128, provided in a lower case 120, via the first space part 4a so as to discharge rainwater and mud to the outside of a cabin. This results in dissolving the infiltration of rainwater and mud into the cabin from an insert hole 122 for the filter 200 provided at the lower case 120.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner suitable for use in a vehicle air conditioner.

[0002]

2. Description of the Related Art Conventionally, in an air conditioner, a filter for cleaning the air sent from the opening side is provided in the first opening of the main body case as follows. First, an insertion hole is formed in the bottom of the main body case on the side of the first opening so that the filter can be taken in and out, and the filter is inserted into the main body case through the insertion hole. Then, a packing or the like is brought into close contact with the outer periphery of the insertion hole by the filter retainer to seal the insertion hole, and the filter is supported in the main body case.

[0003]

However, since the air conditioner takes in air from the outside, rain or mud outside the room enters the main body case through its intake port. Since the filter insertion hole is provided at the bottom of the main body case, rain or mud that has penetrated from the intake port under the main body case can reach the insertion hole. Here, if the insertion hole is not completely sealed, there is a risk that rain or mud may enter the room through the insertion hole.

The present invention has been made in view of the above points,
The purpose is to obtain an air conditioner that prevents rain and mud from entering the room.

[0005]

In order to achieve the above object, the present invention employs the following technical means. In the invention according to claim 1, the first opening (2) is provided at one end in the horizontal direction,
A box-shaped main body case (100) having a second opening (3) at the other end, and the main body case (100) is provided at the bottom (120a) on the side of the first opening (2). An insertion hole (122), and a filter (200) for cleaning the air that is inserted from the insertion hole (122) into the body case (100) and is sent from the first opening (2) side. A groove (126) provided in the bottom portion (120a) on the first opening (2) side of the main body case (100) on the upstream side of the filter (200).
And a discharge hole (128) provided at the bottom of the main body case (100) on the downstream side of the filter (200) for discharging water and mud, and the main body case (100),
The bottom (120a) on the side of the first opening (2) is provided at a position avoiding the insertion hole (122), and water or mud accumulated in the groove (126) is discharged into the discharge hole (128). )
The air conditioner is provided with a passage hole (4) guiding to the side.

According to the second aspect of the invention, the main body case (100) comprises an upper case (110) and a lower case (120) formed by integral molding, and the width of the insertion opening (122) is The lower case (120) is configured to have a width smaller than that of the bottom portion (120a) on the side of the first opening (2), and the insertion opening (122) includes the bottom portion (120) of the lower case (120). 120a)
The lower case (1) is arranged close to one end side in the width direction.
20) bottom (120a) on the side of the first opening (2)
In the above, the filter (20) extends from both ends of the insertion opening (122) substantially vertically to the upper case (110) side.
Guide part (123a, 123b) supporting the side surface of (0)
Is integrally molded, and the lower case (110) is provided.
At the other end side in the width direction of the bottom portion (120a) and a space portion opened substantially vertically to the upper case (110) side, a plate that closes the upper portion of the space portion and opens only the lower portion thereof The air conditioner according to claim 1, wherein the air conditioner has a member (300), and the passage space (4) is formed by the lower space.

According to a third aspect of the present invention, in the air conditioner according to the first or second aspect, the main body case is a cooling unit main body case (100) and is housed inside the cooling unit main body case (100). A cooling heat exchanger (1), and the discharge hole (128) is provided in the cooling unit body case (1).
00), a cooling unit is provided at a position (121) corresponding to the bottom surface of the cooling heat exchanger (1).

The reference numerals in parentheses of the above-mentioned means indicate the correspondence with the concrete means described in the embodiments described later.

[0009]

According to the invention described in claim 1 or 3, since it has the above technical means, even if rain or mud enters the air conditioner from the first opening side, On the upstream side of the filter, a groove is provided in the bottom of the main body case on the side of the first opening, and rain or mud collects in the groove. Then, the water or mud accumulated in the groove is guided to the discharge hole side through the passage hole and can be released to the outside of the room.

Here, since the passage hole is provided at a portion avoiding the insertion hole of the filter, rain and mud can escape to the outside of the room without passing through the insertion hole of the filter. Therefore, the problem that rain or mud enters the room through the insertion hole of the filter is solved. According to the invention of claim 2, the insertion port,
The guide portion can be integrally formed with the lower case by die cutting in a substantially vertical direction extending from the bottom surface of the lower case to the upper case. By disposing a plate-shaped member formed separately from the lower case above the space, the space above can be closed and only the bottom can be opened to form the passage hole. That is, a very simple work of arranging the plate-shaped member can provide the passage hole which cannot be formed by integral molding.

According to the third aspect of the present invention, since it has the above-mentioned technical means, it has a discharge hole for discharging water around the cooling heat exchanger condensed by the cooling heat exchanger. , The drain hole for draining rain and mud outside the vehicle can be shared, and the structure is simple.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to the drawings. This example is adapted to an air conditioner for a vehicle, and is arranged below the instrument panel portion in the front of the passenger compartment. 1 and 2, reference numeral 100 denotes a cooling unit body case, which includes an upper case 110 and a lower case 120.
The upper case 110 and the lower case 120 are integrally molded of resin. On the upper surface of the upper case 110 and the bottom surface of the lower case 120, the guide portion 111 and the guide portion 1 conforming to the shapes of the upper and lower portions of the evaporator 1 are provided.
21 is provided.

Here, the upper case 110 and the lower case 1
By combining 20 parts, the evaporator 1 is supported by the guide part 111 and the guide part 121 and fixed in the cooling unit body case 100. Further, by assembling the upper case 110 and the lower case 120, the first opening 2 and the second opening 3 are formed. Further, the first opening 2 is provided with a filter 200 for removing dust or the like of air sent from a fan (not shown).

Reference numeral 120a denotes a bottom portion of the lower case 120 on the first opening 2 side, and an insertion hole 122 for inserting the filter 200 is provided therein. Insertion hole 122
Is configured to have a width smaller than that of the bottom portion 120a.
In, the bottom portion 120a is arranged closer to the right side in the width direction. Then, the guide portions 123a and 123b and the guide portions 124a and 124b for supporting the side portions and the bottom portion of the filter 200 are provided so as to extend vertically from the outer peripheral portion of the insertion hole 122 to the upper case 110 side.

Further, at the bottom 120a, the bottom 12
There is provided a space portion 4 that is open on the left side in the width direction of 0a and on the upper case 110 side, and is opened substantially vertically. Next, the structure of water escape will be described. On the upstream side of the guide portion 124a,
A step portion 125 is provided on the bottom portion 120a. A groove 126 having a width of about 15 mm is formed by the guide portion 124a and the step portion 125. 127b is the guide portion 12
It is a U-shaped guide portion provided integrally with the guide portion 123a on the upstream side of 3a and attached in the opposite direction to the guide portion 123a. 127a is the lower case 1
20 is a U-shaped guide portion that is disposed on the left side of the first opening portion 200 side and facing the guide portion 127b.

Reference numeral 300 denotes a plate-like member having a size that can be inserted along the guide portions 127a and 127b, and is made of resin. The length of the plate member 300 is the guide portion 127a,
It is slightly shorter (about 5 mm) than the height of 127b. Plate receiving portions 127c and 127d are provided below the guide portions 127a and 127b. Then, when the plate member 300 is inserted from above along the guide portions 127a and 127b, the space portion 4 is closed above, and only the lower portion is opened, and the plate member 300 is opened below the plate member 300 by about 5 mm.
Plate receiving portions 127c, 1 so as to form the space portion 4a of
27d supports the rectangular member 300. Plate receiving part 1
The distance between 27c and 127d is about 2 to 3 mm.

Further, as shown in FIG. 2, the upper case 110 is provided with a rectangular portion 111a at a position corresponding to the plate member 300 supported by the guide portions 127a and 127b. Then, by assembling the upper case 110 and the lower case 120, the lower part of the rectangular portion 111a abuts on the upper part of the plate member 300 to fix the plate member 300 in the vertical direction.

As shown in FIG. 3, a protrusion 301 is integrally provided on the upper side surface of the plate member 300. When the plate member 300 is inserted into the guide portions 127a and 127b, the protrusion 301 is guided. It is arranged between the portions 127a and 127b and can prevent the plate-shaped member 300 from rattling on the left and right.
Then, a discharge hole 128 having a diameter of about 10 mm is provided in the approximate center of the guide portion 121. In the discharge hole 128,
A hose (not shown) communicating with the outside of the vehicle compartment is provided in a gas-liquid tight manner, and water condensed by the evaporator 1 in the cooling unit body case 100 is discharged to the outside of the vehicle compartment.
Further, the guide portion 121 projects toward the discharge hole 128 in the outer direction of the lower case 120.

Next, a method of assembling the cooling unit of this embodiment will be described with reference to FIG. First, the filter 200 is inserted. Then, the filter cover 202 provided with the packing 201 is pressed against and supported by the outer wall of the lower case 120 by a claw-shaped support member (not shown), and the insertion hole 122 is sealed. Next, the evaporator 1 is arranged in the guide portion 121 of the lower case 120. Here, the four corners of the guide portion 121 are slightly higher than the four sides of the guide portion 121. Therefore, when the evaporator 1 is arranged in the guide portion 121, the second space portion c is provided between the bottom side of the evaporator 1 and the four sides of the guide portion 121.

Further, the plate member 300 is provided on the lower case 120.
Is inserted, a packing (not shown) is arranged on the upper side of the plate member 300, and the upper case 110 and the lower case 120 are assembled while the guide portion 111 of the upper case 110 is aligned with the evaporator. By doing so, the plate-shaped member 30
0 is completely fixed in the vertical direction. Here, a fitting groove (not shown) is provided on the mating surfaces of the upper case 110 and the lower case 120, and the upper case 110 and the lower case 1
Along the mating surface of 20, there are provided rectangular portions (not shown) that partially protrude in the horizontal direction in the upper case 110 and the lower case 120 at several locations. Then, the upper case 110 and the lower case 120 are assembled by fitting the fitting grooves and sandwiching the rectangular portion with a holding metal fitting formed of a metal plate spring.

The operation of this embodiment will be described below with reference to FIG. When rain or mud enters the inside of the vehicle air conditioner from outside the vehicle, the rain or mud also enters the cooling unit along the case of the vehicle air conditioner, as indicated by arrow X. However, on the upstream side of the filter 200, the bottom portion 12 of the lower case 120 on the first opening 200 side is formed.
A groove 126 is provided at 0a, and rain or mud collects in the groove 126. In addition, on the left side inside the bottom portion 120a, the first
As shown by the arrow Y, the groove 1
Rain and mud accumulated in 26 flow to the space 4 side.

Then, as shown by an arrow Z, rain and mud are allowed to escape to the inside of the cooling unit body case 100 through the first space portion 4, and further provided in the guide portion 121 through the second space portion c. And flows into the discharge hole 128 side. In this way, rain and mud can be discharged to the outside of the vehicle compartment through the discharge hole 128 together with the water condensed by the evaporator 1.

That is, since the rain and mud are released on the upstream side of the filter 200, the insertion hole 122 of the filter 200
The problem that rain and mud enter the vehicle interior through the portion of the packing 201 where the filter 200 is inserted is eliminated.

[Brief description of drawings]

FIG. 1 is a perspective view showing a lower case in a first embodiment of the present invention.

FIG. 2 is a perspective view showing an upper case in the first embodiment of the present invention.

FIG. 3 is a diagram showing a flow of water escape according to the first embodiment of the present invention.

[Explanation of symbols]

100 ... Cooling unit body case, 4a ... 1st space part, 200 ... Filter, 122 ... Insertion hole, 126 ...
Groove, 128 ... Discharge hole.

Claims (3)

[Claims] 1. A box-shaped main body case having a first opening portion at one end in the horizontal direction and a second opening portion at the other end, and the main body case is provided at a bottom portion on the side of the first opening portion. And a first insertion hole that is inserted into the body case through the insertion hole.
A filter for cleaning the air sent from the opening side of the filter, a groove provided in the bottom of the main body case on the upstream side of the filter, on the first opening side, and on the downstream side of the filter. In the main body case, a discharge hole for discharging water or mud is provided, and in the main body case, a bottom portion on the side of the first opening and provided in a portion avoiding the insertion hole, An air conditioner comprising: a passage hole for guiding water or mud accumulated in the groove to the discharge hole side. 2. The main body case includes an upper case and a lower case formed by integral molding, and a width of the insertion opening is smaller than a width of a bottom portion of the lower case on the first opening side. It is configured, the insertion port is arranged closer to one end side in the bottom portion width direction in the lower case, in the bottom portion of the lower case on the side of the first opening,
A guide part that extends substantially vertically from both ends of the insertion port to the upper case side and that supports a side surface of the filter is provided by integral molding, and in the lower case, at the other end side in the bottom width direction,
And a space portion that is opened substantially vertically is provided on the upper case side, and has a plate-like member that closes the upper portion of the space portion and opens only the lower portion, and the passage space is formed by the lower space, The air conditioner according to claim 1, wherein 3. The air conditioner according to claim 1 or 2, wherein the main body case is a cooling unit main body case, and a cooling heat exchanger housed inside the cooling unit main body case is provided. The cooling unit is characterized in that the hole is provided at a position corresponding to the bottom surface of the cooling heat exchanger in the cooling unit main body case.