JPH04155166A - refrigerator - 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 [Industrial Field of Application] The present invention relates to a refrigerator, and more particularly to a refrigerator having a fan motor mounting device for cooling air circulation.

[Prior art] Conventional devices are disclosed in Japanese Unexamined Patent Application Publication No. 86555/1986 and Japanese Utility Model Application No. 64/1983.
As described in Japanese Patent No. 45269, there are two methods, one of which is a structure in which the mouth ring is positioned based on the inner box, which requires space for the fixing part of the mouth ring, resulting in ventilation resistance. On the other hand.

There is a problem with power consumption, and a moisture-shielding mold is required for the motor coil.

FIG. 4 shows a top sectional view of a general refrigeration unit.

2 is an outer box, 3 is an inner box, and a heat insulating material 4 is filled between the boxes 2 and 3 using an in-situ foaming method. 5 is the freezer compartment 6 inside the inner box 3. Partitions 8 and 9 that partition the refrigerator compartment 7 into upper and lower sections are door bodies that close off both chambers 6 and 7.

A cooling chamber 10 is provided with a cooler 11, and a cooling chamber front plate 13 is provided in front of the cooling chamber 10 to send cold air from a cold air passage 12 to both chambers 6 and 7. Furthermore, a fan 15 driven by a fan motor 14 for circulating cold air is located above the cooling $11.

As a conventional device, Japanese Patent Application Laid-Open No. 61-86555
A refrigerator has a fan motor mounting device for dissipating heat generated by the fan motor from an outer box, and FIG. 5 is a horizontal cross-sectional view of essential parts showing the fan motor mounting device for a conventional refrigerator. 3a
is a hole made in the inner box 3.

Reference numeral 16 denotes a cylindrical case attached to the back side of the hole 3a by adhesive or the like, and the rear opening of the cylindrical case 16 is closed with the outer box 2 via a sealing member 17. Reference numeral 18 denotes a closing plate that covers the front opening of the cylindrical case 16, and the fan motor 14 is connected to the rear side via vibration isolating rubber 19 and a heat insulating member 20.
The front part of the is attached. 21 is a support that supports the rear part of the fan motor 14 via a vibration-proof rubber 22; 23 is a mouth ring of the fan 15; a cylindrical case 16;
Attach the fixing part 23a of the mouse ring 23 to the box X part 16a,
The fan motor 14 is attached by overlapping the fixing part of the support 21, the fixing part of the closing plate 18, etc., and tightening them with screws 24.

As another conventional device, Japanese Utility Model Application Publication No. 64-45269 discloses that the coil part of the fan motor is molded with epoxy resin, etc. to prevent the coil part from short-circuiting, and the heat generated by the fan motor is transferred to the inside of the refrigerator. FIG. 6 is a vertical cross-sectional view of another conventional refrigerator fan motor mounting device. 2
Reference numeral 5 designates a cooling chamber front plate on which a mouth ring 26 of the fan 15 is integrally formed, and supports the rear part of the fan motor 14, which has a coil heat-insulating mold 14a applied to the rear side via a vibration isolating rubber 27. A mounting portion 25a is formed.

A support 28 supports the front part of the fan motor 14 via a vibration isolating rubber 29.

The fan motor 14 is fixed to the boss portion 25b of the mounting portion 25a with a screw 30.

[The problem that the invention aims to solve] But in the former conventional refrigerator as mentioned above.

As a mounting device for a fan motor for cold air circulation, a structure is adopted in which the fan motor 14 is positioned based on the inner box 3, and this mounting structure is based on the mouth ring 23 of the fan 15.
Since the mouth ring 23 is also positioned based on the inner box 3, the mouth ring 23 is a separate part from the cooling chamber front plate 13. Therefore,
The fixing portion 23a of the mouth ring 23 requires a space in the cold air passage 12 of the cooling chamber 11, which is affected by the ventilation resistance of the cold air passage 12.

In other conventional refrigerators, the fan motor 14 is mounted on the cooling chamber front plate 2 as a mounting device for the fan motor for circulating cold air.
Although a structure in which positioning is performed based on five criteria is adopted, a moisture-shielding mold 14a is required for the coil part of the fan motor 14 itself, which is not only less economical in terms of price but also has a thermal effect on the inside of the refrigerator. There was a problem.

An object of the present invention is to eliminate ventilation resistance in cold air passages.

To provide a refrigerator with a fan motor mounting device for cold air circulation that eliminates a moisture-shielding mold for a coil part of the fan motor itself.

[Means to solve jllll] In order to achieve the above object, there is provided a refrigerator of the present invention.

an inner box in which a rear opening of a cylindrical wall formed protruding from the rear side is closed by an outer box; a conical closing wall that closes a front opening of the cylindrical wall; and a front wall having a mouth ring of a fan; A cooling chamber front plate integrally formed with a connecting wall connecting both walls, and a front part of a fan motor mounted on the back side of the closing wall, and then removably engaged with an engaging part provided on the closing wall, A support that supports the rear part of the fan motor, and a support that is formed in the depth direction on the rear side periphery of the closing wall, and that when the closing wall closes the front opening of the cylindrical wall, comes into contact with an inclined wall provided on the cylindrical wall. The fan tanabata is equipped with a sealing wall in contact with the front plate of the cooling chamber, and the fan tanabata is attached to a blocking wall that is integrally formed with the front plate of the cooling chamber. The mouth ring is integral with the front plate of the cooling chamber. Further, the fan motor is installed in the cylindrical wall on the back side of the closing wall of the front plate of the cooling chamber that closes the front opening of the cylindrical wall formed in the inner box.

[Function] The present invention, as configured above, is a mounting device for a fan motor for circulating cold air, in which the fan motor is attached to a blocking wall that is integrally formed on the front panel of the cooling chamber, and the fan motor is attached to the front panel of the cooling chamber. Since it is positioned using a reference, the fan's mouth ring is integrated with the front panel of the cooling chamber. Therefore, no space is required for the fixing portion of the mouth ring in the cold air passage of the cooling chamber, and there is no influence of ventilation resistance in the cold air passage.

In addition, the front opening of the cylindrical wall formed in the inner box is closed and the fan motor is installed inside the cylindrical wall on the back side of the blocking wall on the front plate of the cooling chamber, so the heat generated by the fan motor is transferred from the outer box to the cylindrical wall. Since the fan motor's coil can be dissipated to the outside, there is no need to apply a moisture-shielding mold to the coil part of the fan motor.

[Example 1] An example of the present invention will be described below with reference to FIGS. 1 to 3. Note that the different parts compared to the conventional example described above will be described. Fig. 1 is a horizontal cross-sectional view of the main parts of the refrigerator fan motor mounting device of the present invention, Fig. 2 is a vertical cross-sectional view of the same, and Fig. 3 is an exploded view of the main parts of the present invention. It is an inner box, and a cylindrical wall 31a is formed to protrude from the back side, and its rear opening is closed by contacting the outside II2 via a sealing member 17. 32 is a front plate of the cooling chamber, a front wall 32F having a mouth ring 32a of 7 and 15, and i! I-like! ! A conical closing wall 32c that closes off the front opening of 31a, and both! ! 32)).

A connection fi 32d connecting 32c is integrally formed.

32e is an engaging part formed on the back side of the closing wall 32c, which is formed at left and right opposing positions along the depth direction, and is located at the upper IE.
32f and lower J! ! Approximately U-shaped holding rib 3 with 32 g
2h and a hook-shaped wall 32j.

33 is a support that supports the rear part of the fan motor 14 via a vibration-proof rubber 34, and a vibration-proof rubber 35.33 is provided on the back side of the closing wall 32c. After installing the alligator part of the fan motor 14 through the heat insulating member 36, a support wall 33a supporting the rear part of the fan motor 14 and a block are formed at left and right opposing positions along the front direction from both ends of the support wall 33a. Engagement 1!33b removably engaged with the hook-shaped wall 32J of the wall 32C engagement portion 32e
Equipped with: 32 is a seal wall formed in the depth direction on the rear side periphery of the closing wall 32c;
c is cylindrical I! 3 La is in contact with an inclined IJ provided near the front of the cylindrical wall 31a via a seal member 37, in a state of closing the front opening of the cylindrical wall 31a.

Next, to explain the assembly order of the present invention, the cooling chamber front plate 32
After installing the heat insulating member 36 and the vibration isolating rubber 35 on the back side of the closing wall 32c, the shaft of the fan motor 14 is made to protrude and the front part of the fan motor 14 is attached.

Next, in this state, the rear part of the fan motor 14 is supported by the support wall 33 of the support 33 via the vibration isolating rubber 34,
The engagement wall 33b of the support 33 is connected to the engagement portion 3 of the closing wall 32c.
2a, the fan motor 14 is attached to the closing wall 32c and assembled into the cooling chamber front plate 32.

Then, the rear opening of the cylindrical wall 31a of the inner box 31 is closed with the outer box 2, and a heat insulating material 4 is formed between the two boxes 31 and 2 using an on-site foaming method.
After the cylindrical wall 31a of the inner box 31 is filled, the fan motor 14 assembled on the cooling chamber front plate 32 is inserted into the cylindrical wall 31a through the front opening of the cylindrical wall 31a of the inner box 31.
At the same time as the sealing wall 32k of c is brought into contact with the inclined wall 31b of the cylindrical wall 31a of the inner box 31, the front opening of the cylindrical shape 9131a is closed by the closing wall 32c, and is installed inside the cylindrical wall 31a.

According to this configuration, as a mounting device for the fan motor 14 for circulating cold air, the fan motor 14 is attached to the closing wall 32c that is integrally formed on the cooling chamber front plate 32, and the fan motor 14 is mounted on the cooling chamber front plate 32. In order to position with
The mouth ring 32a of the fan 15 is integrated with the cooling chamber front plate 32.

Therefore, no space is required for the fixing part of the mouth ring in the cold air passage of the cooling chamber, and there is no influence of the flow resistance of the cold air passage.

Further, since the fan motor 14 is installed inside the cylindrical wall 31a on the back side of the closing wall 32c on the front side of the cooling chamber @ 32 that closes the wound opening of the cylindrical wall 31a formed in the inner box 31,
There is no need to apply a dampening mold to the coil part of the fan motor, and the heat generated by the fan motor can be dissipated from the outer box to the outside of the refrigerator.

[Effects of the Invention] According to the present invention, the fan motor is attached to the blocking wall that is integrally formed on the front plate of the cooling chamber, and the fan motor is positioned based on the front plate of the cooling chamber. It becomes one with the face plate.

Therefore, no space is required for the fixing portion of the mouth ring in the cold air passage of the cooling chamber, and there is no influence of ventilation resistance in the cold air passage.

In addition, since the fan motor is installed inside the cylindrical wall on the back side of the closing wall of the front plate of the cooling chamber that closes the front opening of the cylindrical wall formed in the inner box, the heat generated by the fan motor is transferred from the outer box to the outside of the refrigerator. can be dissipated into.

Applying a moisture-proofing mold to the coil part of the fan motor 1
There's no need.

[Brief explanation of the drawing]

FIG. 1 is a horizontal sectional view of a fan motor portion of a refrigerator according to an embodiment of the present invention, FIG. 2 is a vertical sectional view of the same, and the third rj!
I is an exploded perspective view of the main parts also showing the assembly order, FIG. 4 is a sectional view of the top of a general refrigerator, FIG. S is a horizontal sectional view of a conventional fan motor section, and FIG. 6 is another conventional fan motor section. FIG. Explanation of symbols 2...Outer box, 10...Cooling chamber, 14...Fan motor. 15...Fan, 31...Inner box, 31a...
- Cylindrical wall, 31b... Sloped wall, 32... Cooling chamber front plate. 32a...Mouse ring, 32b...Front wall. 32c...Closing wall, 32d...Connecting wall. 32e...engaging portion, 32f...upper wall, 32g...
...lower wall. 32h...retaining rib, 32j...hook-shaped wall. 32k...Seal wall, 33...Support. 33a...supporting wall, 33b...engaging wall.

Claims (1)

[Scope of Claims] 1. In a refrigerator in which the interior of the refrigerator body is divided into upper and lower sections by a middle partition to provide a freezer compartment and a refrigerating compartment, and cool air is forced into each compartment by a fan, on the back side: An inner box in which a rear opening of a protruding cylindrical wall is closed with an outer box, a conical closing wall that closes a front opening of the cylindrical wall, a front wall having a mouth ring of a fan, and both walls thereof. After the front part of the fan motor is attached to the back side of the cooling chamber front plate integrally formed with a connecting wall connecting the walls, the front part of the fan motor is removably engaged with the engaging part provided on the closing wall, and the rear part of the fan motor is attached to the rear part of the cooling chamber. and a support tool formed in the depth direction on the rear side periphery of the closing wall, and when the closing wall closes the front opening of the cylindrical wall, a sealing wall is provided on the inclined wall provided on the cylindrical wall. A refrigerator characterized by comprising: 2. The refrigerator according to claim 1, wherein the engaging portions of the closing wall are formed at left and right opposite positions along the depth direction, and include a substantially U-shaped holding rib having an upper wall and a lower wall, and a hook-shaped wall. 3. In claim 1, the support is formed at a support wall that supports a rear part of the fan motor, and at left-right opposing positions along the front direction from both ends of the support wall, and is detachable from the engagement portion of the closure wall. and an engaging wall capable of engaging.