JPH04297767A - Cooling device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling device used in a refrigerator or the like, and more particularly to a mounting structure for a defrosting heating element.

0002

[Prior Art] Figures 5, 6, and 7 are patent applications filed in Japanese Patent Application No. 2-15.
382 is a vertical sectional view, a bottom view of the main part, and a detailed view of the main part, and 1 and 2 are the top plate 4 and the hinge 6 attached thereto.
The first and second heat exchangers are housed in a housing consisting of a drain pan 5 that is attached to the drain pan 5 so as to be openable and closable through the housing. are located on the air outflow side and are opposed to each other with a predetermined distance A between them. The heat exchangers 1 and 2 include cooling pipes 1b and 2b through which a refrigerant flows and a large number of fins 1a and 2a.
and side plates 1 provided at both ends of the cooling pipes 1b and 2b group.
C, 1d, 2c, 2d, cooling pipes 1b, 2b
are connected by piping 10. Reference numeral 3 denotes a defrosting heater extending horizontally between the heat exchangers 1 and 2 and provided in multiple stages in the vertical direction, and support plates 11a and 11b are provided at both ends of the defrosting heater.
are attached, and the support plates 11a and 11b are the side plates 1
C, 1d, 2c, and 2d with screws 12 in a detachable manner.

Next, the operation will be explained. The air flowing into the heat exchangers 1 and 2 due to the rotation of the fan 7 flows into the cooling pipes 1a,
The fins 1a and 2 are cooled by the refrigerant flowing through the fins 1a and 2b.
A large amount of frost forms on the surfaces of the fins 1a and 2a. While the cooling operation continues in this way, when a predetermined amount of frost is reached, a defrosting device (not shown) is activated, and the heat generated from the heater 3 is transmitted to the frost adhering to the surfaces of the fins 1a and 2a. Thaw frost. The melted frost turns into water, which is collected by the drain pan 5 and discharged outside the refrigerator. During service such as replacing the heater 3, open the drain pan 5, remove the screws 12, and remove the support plate 11a that fixes the heater 3.
, 11b, the heater 3 is connected to the heat exchanger 1.
, Take it out from between 2. Also, when installing the heater 3, the reverse operation is performed.

0004

[Problems to be Solved by the Invention] Since the conventional cooling device is constructed as described above, when considering the replacement service of the heater 3, it is difficult for the construction worker to replace both the left and right support plates 11a and 11b.
It is not easy to insert the heater 3 fixed to the heat exchangers 1 and 2 between the heat exchangers 1 and 2.
The structure had very poor workability, requiring the user to hold down parts a and 11b while tightening the screws. There was also the problem that the screws 12 were lost during work.

[0005] The present invention was made to solve the above-mentioned problems, and provides a cooling device that can be efficiently replaced in a replacement service for a defrosting heating element disposed between divided heat exchangers. The purpose is to obtain.

[0006]

[Means for Solving the Problems] A cooling device according to the present invention includes first and second heat exchangers housed in a housing and facing each other at a predetermined interval;
A mounting member is provided that has a holding part that holds the defrosting heating element disposed between the first and second heat exchangers, and a fixing part that is fixed to the cooling pipe using a spring action at the other end. It is something that

[0007]

[Function] In this invention, when the defrosting heating element is replaced, the defrosting heating element can be easily removed and attached by releasing the elastic force of the holding part and the fixing part.

[0008]

[Example] Example 1. An embodiment of the present invention will be described below with reference to the drawings. 1, 2, and 3 are a longitudinal sectional view, a bottom view of a main part, and a detailed view of a main part of a cooling device according to an embodiment of the present invention, and 3 is a heat exchanger 1, 2 like the conventional one.
13 is a mounting member made of steel wire, and a rising part 13a at one end, that is, a holding part, holds the heater 3. The fixing portion 13b at the other end is removably pressed and fixed to the cooling pipe 1a or 1b of the heat exchanger 1 or 2, as shown in FIG. 4, using a spring action. The other structure of the cooling device is the same as that of the conventional example, so a description thereof will be omitted.

Next, the operation will be explained. The operation of the cooling device is the same as that of the conventional example, so a description thereof will be omitted. Heater 3
When performing service such as replacing the heater 3, first open the drain pan 5 and remove the fixing part 13b of the mounting member 13 that holds the heater
Pull the end 13c downward to release the elastic force,
The heater 3 is taken out from between the heat exchangers 1 and 2 by removing it from the cooling pipe 1b or 2b of the heat exchanger 1 or 2 and pulling it out. Then, the defrosting heater 3 can be removed by pushing and expanding the holding portion 13a to release the elastic force. Also, when installing the heater 3, the reverse operation is performed.

Example 2. Note that if it is necessary to fix the first and second heat exchangers to each other, it is necessary to separately provide a similar mounting member (not shown) for fixing the heat exchangers. In this case, the operation of removing the heat exchanger fixing pin is added to the replacement work of the defrosting heater 3, but in this case as well, there is no screw tightening work, so the same effect as described above can be obtained.

[0011]

As described above, according to the present invention, the defrosting heating element located between the heat exchangers that are disposed facing each other at a predetermined interval can be controlled by the mounting member made of a wire rod. Since it is fixed to the cooling pipe of the first or second heat exchanger using the heat exchanger, it is easy to install and remove the heating element during defrosting heating element replacement service, and there is no need to tighten screws. This eliminates the problem of losing items and improves work efficiency.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of a cooling device according to an embodiment of the present invention.

FIG. 2 is a bottom view of essential parts of a cooling device according to an embodiment of the present invention.

FIG. 3 is a detailed view of a mounting member which is a main part of the present invention.

FIG. 4 is a diagram showing how the defrosting heater is attached to the cooling pipe by the attachment member, which is a main part of the present invention.

FIG. 5 is a longitudinal cross-sectional view of a conventional cooling device.

FIG. 6 is a bottom view of essential parts of a conventional cooling device.

FIG. 7 is a detailed view of main parts of a conventional cooler.

[Explanation of symbols]

1 Heat exchanger 2 Heat exchanger 1a Fin 2a Fin 1b Cooling pipe 2b Cooling pipe 1c Side plate 1d Side plate 2c Side plate 2d Side plate 3 Defrosting heater 4 Top plate 5 Drain pan 7 Juan 8 Air inlet 9 Air outlet 13 Mounting parts 13a Holding part 13b Fixed part

Claims (1)

[Claims] Claim 1: A housing consisting of a top plate and a drain pan attached to the top plate so as to be openable and closable, a housing having an air inlet and an air outlet, a number of fins and side plates located on both sides of the housing, and a refrigerant flowing inside the housing. first and second heat exchangers each configured of a sink, a cooling pipe passing through the fin group and both side plates, housed in the housing, and arranged facing each other at a predetermined interval; a fan that sucks air to be cooled from the air inlet, supplies it to the first and second heat exchangers, and then sends it out from the air outlet;
a defrosting heating element disposed between the first and second heat exchangers; a holding part for holding the heating element at one end; and a holding part for holding the heating element at the other end; Second
1. A cooling device comprising a fixing part for fixing to a cooling pipe of a heat exchanger, and comprising a wire rod.