JPH0452098Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention is a water-preventing net for an evaporator, which is used to attach a water-preventing net to an evaporator to capture condensed water in the evaporator of an automobile air conditioner. Concerning fasteners.

(Prior Art) Generally, in an air conditioner for an automobile, an evaporator installed in a cooler unit exchanges heat between the refrigerant flowing inside the refrigerant conduit and the air flowing along the outer surface of the refrigerant conduit. The air discharged into the cabin is cooled to cool the interior of the vehicle.

Since condensed water adheres to the outer surface of this evaporator, there is a possibility that this condensed water may flow into the vehicle interior together with the air.

Therefore, in the conventional evaporator, a water-splash prevention net is provided along the air outlet side end face for trapping condensed water (see Japanese Utility Model Application No. 57-40078). This is true for evaporators of irregular tube type, also known as serpentine type, which are formed by meandering flat refrigerant conduits with numerous refrigerant passages formed inside by extrusion molding, and laminate type evaporators. The same is true for stacked type evaporators, also known as laminated type evaporators, in which tray-shaped plates are joined together in the middle to form a refrigerant conduit with a refrigerant passage inside. A water barrier net may be installed for the purposes mentioned above.

However, if the water splash prevention net is made of metal and is brought into direct contact with the evaporator, a problem of electrical corrosion will occur due to the potential difference with the metal evaporator. It is necessary to install it with a predetermined gap between the evaporator and the evaporator.

(Problem to be solved by the invention) However, the stoppers for the water prevention nets conventionally attached to evaporators require the above-mentioned irregular-shaped tube type and laminated type, and when manufacturing both types of evaporators, , a stopper is formed to suit each type. Therefore, the number of parts increases, the assembly production process becomes complicated, and production efficiency decreases.

The present invention has been made in view of the problems of the prior art described above, and it is an object of the present invention to make it possible to attach a splash prevention net to both types of evaporators by using a common stopper.

(Means for Solving the Problems) The present invention for achieving the above object has two fitting claws fitted to the outer surface of the refrigerant conduit of the evaporator, which are jutted in parallel with a space between them on the main body of the stopper. established,
A fly-preventing net is supported on the stopper main body at a position opposite to the fitting claw part at a predetermined distance determined by the stopper main body from the air blowing side end surface of the evaporator, and also prevents splashing of water. A clip portion having an engaging portion for preventing the prevention net from coming off is provided, and each of the outer surfaces of the fitting claw portions in the parallel direction is provided with a clip portion that abuts the opposing outer surface of the adjacent refrigerant conduit of the irregularly shaped tube evaporator. A stopper for a splash prevention net for an evaporator, characterized in that the mutually facing inner surfaces of the fitting claws are provided with abutment surfaces that abut both outer surfaces of one refrigerant conduit of a stacked evaporator. .

(Function) In the present invention, by using one type of water prevention net stopper that has a fitting claw part, a stopper body, and a clip part, the water splash prevention net can be attached to an irregularly shaped tube type evaporator. This also makes it possible to install a water splash prevention net on a stacked evaporator, allowing parts to be shared, reducing the number of parts, simplifying the evaporator assembly production process, and improving production efficiency. Become.

(Example) Hereinafter, one example of the present invention illustrated in the drawings will be described.

FIGS. 1A to 1C are views showing a stopper for an evaporator water splash prevention net according to an embodiment of the present invention. Two fitting claw parts 3, 4 protrude from the
are provided in a protruding manner, and these fitting claws 3 and 4 are deformable so that their tips move toward and away from each other. These fitting claws 3 and 4 are arranged between opposing outer surfaces of adjacent refrigerant conduits 21a of an irregularly shaped tube type evaporator 20a as shown in FIG. 1A, or in a stacked type evaporator as shown in FIG. 1B. 20
The refrigerant conduit 21b is fitted between both outer surfaces of the refrigerant conduit 21b.

A clip portion 5 is protruded from the stopper body 2 at a position opposite to the fitting claw portions 3 and 4. The clip part 5 supports the water splash prevention net 22 at a predetermined distance determined by the stopper main body 2 from the air blowing side end face of the evaporators 20a, 20b, and has an oppositely directed engaging part 6 at the tip. have. These fitting claw parts 3, 4, stopper body part 2, and clip part 5 are integrally molded from resin.

FIG. 1A is an enlarged view of the main part of FIG. 2A, and shows a state in which the water splash prevention net 22 is attached to the irregularly shaped tubular evaporator 20a using the fastener 1. As shown in this figure, the fitting claws 3, 4
The outer surface of the evaporator, that is, the surface facing the adjacent refrigerant conduit, has a contact surface that comes into contact with the refrigerant conduit 21a when the fitting claws 3 and 4 are fitted between the refrigerant conduits 21a of the evaporator 20a. 7 is formed.

FIG. 1B is an enlarged view of the main part of FIG. 2B, and shows a state in which the water splash prevention net 22 is attached to the stacked evaporator 20b using the fastener 1. As shown in this figure, the mutually facing inner surfaces of the fitting claws 3 and 4 are provided with a refrigerant conduit when the fitting claws 3 and 4 are fitted between both outer surfaces of the refrigerant conduit 21b of the evaporator 20b. A contact surface 8 is formed to contact 21b. Further, on the inner surfaces of the fitting claws 3 and 4, protrusions 9 that engage with the grooves 13 formed in the stacked evaporator 20b are provided to protrude in the opposite direction.

A stopper surface 10 is formed between both end surfaces of the stopper main body 2 and the fitting claws 3 and 4, and comes into contact with the air outlet side end surface of the refrigerant conduit 21a. Also,
As shown in FIG.
A saw blade-shaped uneven portion 11 is formed which engages with the corrugated fin 23 when the corrugated fin 23 is fitted into the corrugated fin 23.

Next, a procedure for attaching the splash prevention net 22 to the evaporators 20a, 20b using the stopper 1 of the present invention will be explained.

Using the stopper 1, the irregularly shaped tubular evaporator 20a
To attach the splash prevention net 22 to the
The fitting claws 3 and 4 are fitted between the refrigerant conduits 21a, and the water splash net 22 is engaged with the clip part 5 by passing the clip part 5 through it. With this, the splash prevention net 22
are attached to the irregularly shaped tubular evaporator 20a with a distance set by the width dimension of the stopper main body 2 from the irregularly shaped tubular evaporator 20a.
One splash prevention net 22 has about four stops 1
It is attached to the irregularly shaped tubular evaporator 20a using.

Next, in order to attach the water splash prevention net 22 to the stacked evaporator 20b using a similar stopper 1, the fitting claws 3 and 4 of the stopper 1 are connected to the refrigerant conduit 21b.
At the same time, the splash prevention net 2
2 is engaged with the clip part 5 by passing it through the clip part 5. Thereby, the splash prevention net 22 is also attached to the laminated evaporator 20b with a distance set by the width dimension of the stopper main body 2 from the laminated evaporator 20b.

(Effects of the invention) As described above, according to the invention, a contact surface that comes into contact with the refrigerant conduit when the fitting claw is fitted into the irregularly shaped tube evaporator is formed on the outer surface of the fitting claw, and the fitting claw A contact surface is formed on the inner surface of the part that comes into contact with the refrigerant conduit when it is fitted into the laminated evaporator, and a water prevention net can be attached to either evaporator, making it possible to It is possible to share the same fasteners when attaching the splash prevention net to the evaporator and the stacked evaporator, reducing the number of parts when manufacturing each type of evaporator, and improving production efficiency.

[Brief explanation of the drawing]

Figures 1A and B are perspective views showing the stoppers of the evaporator water prevention net of the present invention, Figure 1C is a plan view of the stoppers shown in Figures 1A and B, and Figure 1D is the 1 is a sectional view taken along the line D-D in FIG.
FIG. 2B is a perspective view showing a state in which a water splash prevention net is attached to a stacked evaporator using a stopper. 1... Stopper, 2... Stopper body, 3, 4...
Fitting claw part, 5... Clip part, 6... Engagement part,
7, 8...Abutting surface, 20a, 20b...Evaporator, 21a, 21b...Refrigerant conduit, 22...Water prevention net.

Claims (1)

[Scope of utility model registration request] 2 fitted to the outer surface of the refrigerant conduit of the evaporator
Two fitting claws 3 and 4 are provided in parallel and protruding from the stopper main body 2 at intervals, and the stopper main body 2 at a position opposite to the fitting claws 3 and 4 is provided with splash water. A clip part 5 having an engaging part 6 that supports the prevention net 22 from the air outlet side end surface of the evaporator at a predetermined distance determined by the stopper body 2 and prevents the water splash prevention net 22 from coming off. The fitting claws 3 and 4 are provided with outer surfaces of the fitting claws 3 and 4 facing each other, and the fitting claws 3 and 4 are provided with an outer surface that abuts the opposing outer surfaces of adjacent refrigerant conduits of the irregularly shaped tube evaporator, and that the fitting claws 3 and 4 face each other. A stopper for a water-splash prevention net for an evaporator, characterized in that its inner surface is provided with contact surfaces 7 and 8 that abut against both outer surfaces of one refrigerant conduit of a stacked evaporator.