JPH0710898Y2 - Cooling unit drainage structure - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to the drainage structure of a cooling unit installed in an air conditioner for a vehicle, etc., and particularly, the drainage property and the assembling property from the cooling unit are improved. It relates to the drainage structure of the cooling unit.

[Prior Art] Conventionally, a cooling unit of a vehicle air conditioner has an evaporator housed therein, and heat and heat are exchanged at a portion of the evaporator for cooling and dehumidifying. However, condensation is caused on the surface of the evaporator. Generally, a drain pipe or a drain pipe for discharging water (so-called dew water) (so-called drain water) is provided (for example, JP-B-55-36254 or JP-B-58-451).
No. 21).

However, in the conventional air conditioner, if the drain pipe is provided in the lower part of the cooling unit case and the drain hose is connected to drain the water outside the vehicle compartment, the workability of connecting the drain hose is poor and There is also the problem of poor connection of this drain hose. Also, as a result of the passenger kicking off the drain hose with their feet, the drain hose was removed, causing a problem of water leakage.

Therefore, there is also a drainage structure in which the drain pipe is directly exposed to the outside of the vehicle compartment without using the drain hose. Drainage structure of condensed water in such conventional vehicle air conditioners
55-110308) based on Fig. 4.

FIG. 4 is a perspective view of a conventional cooling unit 1. This cooling unit 1 has a cooling unit case 4 composed of a cooling unit upper case 2 and a cooling unit lower case 3, and an evaporator 5 housed inside the cooling unit case 4. An inlet 6 is formed on one side of the cooling unit case 4, and an outlet 7 is formed on the other side. A refrigerant inlet pipe 8 and a refrigerant outlet pipe 9 are provided for heat exchange in the evaporator 5. The refrigerant inlet pipe 8 and the refrigerant outlet pipe 9 are provided with a guide piece 10, a sealing material 11, and a negative pressure pipe 12.

Further, the cooling unit case 4 has a plurality of mounting pieces 13 for mounting the cooling unit 1 on the vehicle body (fire board 18 and a predetermined vehicle body portion described below).
Drain pipe 14 for forming water and draining condensed water
And a sealing material 15 is provided.

The water condensed on the outer surface of the evaporator 5 (condensed water W) is discharged to the engine room 16 side through the drain pipe 14 and does not drop to the vehicle compartment 17 side. That is, the drain pipe 14 is inserted into the boundary member provided at the boundary between the engine room 16 and the vehicle compartment 17, that is, the drain pipe hole 19 of the fire board 18.

However, the drain pipe hole 19 into which the drain pipe 14 is inserted and the fire board 18 or the bolt hole 20 formed in a predetermined portion of the vehicle body for fixing the attachment piece 13 are difficult to be aligned with each other, and the installation workability is low. There is a problem.

Further, the mounting pieces 13 have a number of problems in order to maintain their mounting strength, and it is necessary to make each of the mounting pieces 13 sturdy, which causes a problem of cost increase in design.

[Problems to be Solved by the Invention] The present invention has been made in view of the above problems, and it is possible to directly discharge the condensed water condensed on the outer surface of the evaporator housed in the cooling unit to the outside of the vehicle compartment. Assuming a solution, the drain hose can be removed to discharge the condensed water, and the drain pipe can be inserted and installed and the entire cooling unit can be installed in fewer steps, and workability during assembly can also be improved. An object is to provide a drainage structure for a cooling unit.

[Means for Solving the Problems] That is, the present invention provides a cooling unit case, an evaporator housed in the cooling unit case, a drain pipe portion capable of discharging condensed water in the cooling unit case, and the cooling unit. A drainage structure of a cooling unit having a case mounting piece, which forms a mounting foot that integrates the drain pipe part and the mounting piece, and is a boundary part between a vehicle compartment in which the cooling unit is arranged and an outside of the vehicle compartment. In the state where the drain pipe portion is inserted into a drain pipe hole formed in a boundary member such as a fire board or a lower panel provided in the above, the mounting foot can be fixed to the boundary member by a fixing member such as a bolt and a nut. This is the cooling unit drainage structure.

[Operation] In the cooling unit drainage structure according to the present invention, since the mounting foot is formed by integrating the mounting piece and the drain pipe portion, the mounting foot is arranged on a predetermined boundary member such as a fire board. Then, by inserting the drain pipe portion into the drain pipe hole, the mounting piece can be positioned at the same time. Therefore, not only can the number of work steps for installation be reduced, the cooling unit case can be easily positioned on the vehicle body, and it can be drained directly to the outside of the vehicle without using a drain hose. The reinforcing effect can be expected.

[Embodiment] Next, a drainage structure of a cooling unit according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. However, the same parts as those in FIG. 4 are designated by the same reference numerals, and the detailed description thereof will be omitted.

FIG. 1 is a perspective view of a main part of the cooling unit 30, and FIG. 2 is a cross-sectional view of the main part showing a mounting state, in which a mounting foot 32 is integrally formed on a lower portion of a cooling unit case 31 of the cooling unit 30. I am doing it.

The mounting leg 32 has a drain pipe portion 33 formed therein to form a drainage passage 34. Also mounting feet
Skirts 35 are formed on both sides of 32, and a mounting piece 36 corresponding to the mounting piece 13 is formed below the tip end 33A of the drain pipe section 33. A mounting notch 37 having a predetermined length in the direction is formed.

As shown in FIG. 2, if the tip portion 33A of the drain pipe portion 33 is positioned so as to be inserted into the drain pipe hole 19 of the fire board 18, the mounting notch portion 37 of a predetermined length matches the bolt hole 20. In this state, the mounting foot 32 is fixed to the fire board 18 by the fixing members such as the bolt 38 and the nut 39.

Therefore, if the drain pipe hole 19 and the bolt hole 20 are formed close to each other on the fire board 18, the condensed water W can be drained directly to the outside of the vehicle compartment 17, for example, the engine room 16.

Further, since the drain pipe hole 19 and the bolt hole 20 are close to each other, it is easy to position the drain pipe portion 33, the mounting piece 36 or the mounting notch portion 37, and at the same time positioning the portion, positioning the entire mounting foot 32. In addition to being able to perform it, the installation work can be reduced by one time compared with the conventional structure, and the bolt 38 and the nut 39 can be reduced.
The fixing work of is only required once, and the workability is extremely good.

In the present invention, any combination of mounting feet and drain pipe can be adopted. For example, FIG. 3 shows a perspective view of a cooling unit 40 according to another embodiment of the present invention.

The mounting foot 42 formed on the cooling unit case 41 of the cooling unit 40 includes a mounting foot body 43,
This is composed of a lid 44 capable of opening and closing the upper part of the mounting foot body by a hinge mechanism. In addition, while forming the drainage passage 45 in the upper open state inside the mounting foot body 43,
A tip portion 45A corresponding to the tip portion 33A of the drain pipe portion 33 is formed in the tip direction thereof. Other configurations are similar to those of the cooling unit 30 described above.

As with the cooling unit 30, the cooling unit 40 having such a structure can be attached to the fire board 18, and the drainage passage 45 can be maintained by opening and closing the lid 44.

In such an embodiment, the lid 44 may be configured separately from the mounting foot main body 43, and the cooling unit upper case 2 and the cooling unit lower case 3 may be devised by dividing the cooling unit upper case 2 into the cooling unit upper case. The lid 44 may be formed on the two sides.
Further, the lid does not have to be formed depending on the depth of the drainage passage 45.

[Effect of the Invention] As described above, according to the present invention, since the drain pipe part and the mounting piece are integrated as the drainage structure of the cooling unit, the drain hole and the bolt hole are close to each other. The drain pipe and the mounting piece can be easily positioned with respect to each other, and as a result, the cooling unit can be easily positioned and mounted on the vehicle, which contributes to improved workability and reduces the number of parts of the mounting piece. Also, the mechanical strength of the mounting portion can be increased.

[Brief description of drawings]

1 is a perspective view of a drainage structure of a cooling unit 30 according to an embodiment of the invention, FIG. 2 is a cross-sectional view of the drainage structure of the cooling unit 30, and FIG. 3 is a cooling unit according to another embodiment of the invention. FIG. 4 is a perspective view of an essential part of 40, and FIG. 4 is a perspective view of the conventional cooling unit 1. 1 …… Cooling unit 2 …… Cooling unit upper case 3 …… Cooling unit lower case 4 …… Cooling unit case 5 …… Evaporator 6 …… Suction port 7 …… Blowout port 8 …… Refrigerant inlet pipe 9 …… Refrigerant outlet Pipe 10 …… Guide piece 11 …… Seal material 12 …… Negative pressure pipe 13 …… Mounting piece 14 …… Drain pipe 15 …… Seal material 16 …… Engine room 17 …… Car interior 18 …… Fire board (boundary member ) 19 ... Drain pipe hole 20 ... Bolt hole 30 ... Cooling unit 31 ... Cooling unit case 32 ... Mounting foot 33 ... Drain pipe part 33A ... Drain pipe part 33 tip 34 ... Drainage passage 35 ...... Skirt 36 …… Mounting piece 37 …… Mounting notch 38 …… Bolt 39 …… Nut 40 …… Cooling unit 41 …… Cooling unit case Scan 42 ...... mounting foot 43 ...... mounting foot body 44 ...... lid 45 ...... drain passage 45A ...... tip W ...... condensate

Claims (1)

[Scope of utility model registration request] 1. A cooling unit having a cooling unit case, an evaporator housed in the cooling unit case, a drain pipe part capable of discharging condensed water in the cooling unit case, and a mounting piece of the cooling unit case. A drainage structure of the drain pipe part and the mounting piece integrally formed with a mounting foot, and the tip part of the mounting foot and the tip part of the drain pipe part and the mounting piece are projected, With the tip of the drain pipe part inserted in the drain pipe hole formed in the boundary member provided at the boundary between the vehicle compartment where the cooling unit is arranged and the outside of the vehicle compartment, the attachment piece is fixed to the boundary member by the fixing member. Cooling unit drainage structure that can be fixed.