JP3392313B2 - refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cover fixing structure applied around a periphery of an evaporator at a refrigerator in which an engaging claw can be disengaged by a simple configuration and a fan cover can be removed. SOLUTION: An engaging claw 6d arranged at a fitting rib 6c of a fan cover 6 is engaged with an engaging hole 5b arranged at a peripheral rib 5c of a cover 5 of an evaporator, thereby the cover 5 of the evaporator and a fan cover 6 are combined to each other. Then, a fitting or removing tool is inserted between the peripheral rib 5c and a fitting rib 6c through a fitting or removing hole 6b and slightly closed to cause the engaging claw 6d to be removed from the engaging hole 5b, so that the fan cover 6 can be removed from the cover 5 of the evaporator.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cover mounting structure around an evaporator in a refrigerator and a display related thereto.

[0002]

2. Description of the Related Art Conventionally, in a refrigerator, a fan cover is provided at a cool air discharge port around an evaporator. For example, Japanese Utility Model Laid-Open No. 59-142683 discloses a fan cover in consideration of its detachability. There is something like that described in. As shown in the exploded perspective view of the main part shown in FIG. 12, the locking claw 21c of the mounting leg 21d protruding rearward from the fan cover 21 engages with the hole 20b of the flat part of the evaporator cover 20. The fan cover 21 is attached to the evaporator cover 20.
An attachment / detachment hole 21b is provided on the front surface of the device 1. In the figure, 20a is a cool air discharge port, 21a is a discharge grill, and 22 is a fan.

FIG. 13 is a perspective view showing the principal part of the back surface of the fan cover 21. As shown in the figure, the tubular portion 21e
Is connected to the attachment / detachment hole 21b shown in FIG. 12 and extends, the attachment leg 21d is movable via the tubular portion 21e and the slit 21f, and the tip end engages with the hole 20b. It has a stop claw 21c.

FIG. 14 is a sectional view showing the engaged state of the fan cover 21 and the evaporator cover 20. As shown in the figure, the tubular portion 21e comes into contact with the front surface of the evaporator cover 20, and the locking claw 21c of the mounting leg 21d engages with the hole 20b of the flat surface portion of the evaporator cover 20.
The fan cover 21 is attached to the evaporator cover 20. Further, the locking claw 21c can be removed from the hole 20b by operating the attachment leg 21d through the attachment / detachment hole 21b.

[0005]

However, in the conventional cover mounting structure as described above, the locking claw 21c is provided.
Although the attachment / detachment hole 21b for removing is located on the front surface of the fan cover 21, the engaging portion of the locking claw 21c is at the back, and it is not clear at which position the engaging portion is engaged. Therefore, when removing the fan cover 21, for example, a flat-blade screwdriver or the like is used for the attachment / detachment hole 21.
Even if you plunge into b and play the rattle in the back, the locking claw 21c will not come off easily.
Forcibly pulling on to break the mounting leg 21d,
There were many occasions when I cracked.

Furthermore, when there is no attachment / detachment hole, it is difficult to remove the fan cover by simply pulling it blindly, and it is rare that the fan cover comes off without any damage. The present invention solves these problems, and with a simple structure, the locking claw can be easily removed to remove the fan cover. An object of the present invention is to provide a cover mounting structure around an evaporator in a refrigerator and a display means related to the structure so that the arrangement of required parts can be easily understood.

[0007]

In order to achieve the above object, in the present invention, an evaporator cover having a cool air discharge port for discharging the cool air from the evaporator by a fan, and the cool air is discharged into the chamber. And a fan cover having a cool air discharge grille for removing the fan cover, the fan cover being removably combined with the evaporator cover, wherein a circumferential rib is provided around a front surface of the evaporator cover, and a rear surface of the fan cover is provided. A fitting rib that is fitted substantially inscribed or circumscribed to the circumferential rib is provided around the circumference, and the circumferential rib has a locking hole for attaching the fan cover, The rear end is provided with a locking claw that engages with the locking hole, and the fan cover is provided with a detaching work hole in the vicinity of the locking claw.

Further, the attaching / detaching operation hole is closed by the circumferential rib contacting the rear surface of the fan cover. Further, the circumferential rib may be provided with a guide surface at a position facing the detachment work hole, the guide surface for guiding a detachment tool inserted through the detachment work hole. Further, the fan cover may be screwed to the evaporator cover.

Further, the detaching work hole may be closed with a thin film, or the detaching work hole may be closed to provide a thin groove around the opening, and the detaching work hole may be opened if necessary. Further, the contents of the parts arranged on the fan cover can be displayed on the front surface of the fan cover.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view around an evaporator in an embodiment of the refrigerator of the present invention.
In the figure, 1 is an outer box that forms the outer wall of the refrigerator, 2 is an inner box that forms the inner wall of the refrigerator, 3 is an evaporator that cools the air in the refrigerator, 4 is a fan that sends cold air to the freezer compartment, 5
Is an evaporator cover, and 6 is a fan cover. Also, FIG.
Is an exploded perspective view of the main part. As shown in the figure, the flat surface portion of the evaporator cover 5 is provided with a cool air discharge port 5a, a peripheral rib 5c around it, and a temperature fuse accommodating portion 5d below. The locking hole 5b is provided on the circumferential rib 5c.

A discharge grill 6a for discharging cool air and a detachment hole 6b are provided on the surface of the fan cover 6, and a fitting rib 6c which is substantially inscribed in parallel with the circumferential rib 5c is provided on the periphery of the back surface. A locking hole 5b is provided at the outer rear end of the fitting rib 6c.
A locking claw 6d that engages with is provided. When the evaporator cover 5 and the fan cover 6 are combined, the circumferential rib 5c
Is in contact with the back surface of the fan cover 6. The thermal fuse 7 is housed in the thermal fuse housing 5d,
It works as a safety device in case of abnormal heating.

When the evaporator cover 5 and the fan cover 6 are assembled, as shown in FIG. 1, first, the stepped portion 30 'provided on the shelf 30 in the refrigerator and the evaporator cover 5 are assembled.
The lower end 6'of the fan cover 6 is fitted into the groove formed between the lower end 5'and the lower end 5 ', and then brought into contact with the lower end 5', and then the engaging claw 6d is engaged with the engaging hole 5b at the upper part of each cover. It is configured to combine. This allows the fan cover 6 to be smoothly attached and detached with a simple configuration.

With the structure as described above, the fan cover 6
Is easily removed, and unnecessary cooling air leakage from the attachment / detachment hole 6b is prevented. Details will be described later. In these configurations, when the refrigerator is used, the air cooled by the evaporator 3 is sent as the cool air by the fan 4, passes through the cool air discharge port 5a of the evaporator cover 5, and enters the freezing chamber from the discharge grill 6a of the fan cover 6. It is a mechanism to be discharged. It should be noted that the fitting ribs 6c provided on the periphery of the back surface of the fan cover 6 are not limited to inscribed, but, for example, the locking claws 6d are provided at the inner rear end so as to make external contact with the circumferential ribs 5c. May be.

FIG. 3 is a sectional view showing a mounted state of the fan cover 6. As shown in the figure, the locking claws 6d provided on the fitting ribs 6c of the fan cover 6 are provided on the evaporator cover 5
The evaporator cover 5 and the fan cover 6 are combined by engaging with the locking holes 5b provided in the circumferential rib 5c.

FIG. 4 is a cross-sectional view showing how the fan cover 6 is removed by the detaching tool. As shown in the figure,
Detachment tool 8 such as a flat-blade screwdriver with a tip-like tip
Since the locking claw 6d is disengaged from the locking hole 5b by inserting the plug into the attaching / detaching hole 6b and making it slightly twisted, the fan cover 6 can be removed from the evaporator cover 5. As described above, the space into which the detachable tool 8 is inserted is reduced as compared with the conventional case, rattling is eliminated, and the locking hole 5
By bringing b to the front, it can be easily removed. Further, since the attachment / detachment hole 6b is normally closed by the circumferential rib 5c, unnecessary cold air leakage from here is prevented.

FIG. 5 is a sectional view showing a state in which a guide surface is provided on the circumferential rib 5c. As shown in the figure, a guide surface 9 is provided at a position of the circumferential rib 5c of the evaporator cover 5 facing the desorption hole 6b at a corner portion of the evaporator cover 5, and when the fan cover 6 is removed, the guide surface 9 and the fan cover 6 are removed. By inserting the removable tool 8 between the fitting rib 6c and the fitting rib 6c, the guide surface 9 and the removable tool 8 come into close contact with each other, so that the fitting rib 6c is not scratched or recessed. Further, the operation itself of inserting the detachable tool 8 becomes easy.

FIG. 6 is a perspective view showing the circumferential rib 5c provided with the guide surface 9 as seen obliquely from below.
The guide surface 9 has a necessary minimum size so as to prevent the leakage of cold air by impairing the sealing property of the periphery.

FIG. 7 is a front view of a part of a fan cover of a type that is attached together with screws. That is,
In this type, the attachment / detachment hole 6 on the fan cover 6
Aside from b, a single or a plurality of mounting screws 10 are provided as needed. In this way, by using screws together, it is possible to prevent accidents such as a general user removing the fan cover 6 and touching a movable part such as the fan 4 or the like.

FIG. 8 is a sectional view showing a state in which a thin film is provided instead of the attachment / detachment hole of the fan cover. As shown in the figure, by providing a thin film 11 on the fan cover 6 at a position corresponding to the attachment / detachment hole 6b, the thin film 11 is removed by a cutter or the like when necessary for maintenance,
The fan cover 6 can be removed by inserting the detachable tool 8 from there. At this time, at the corners of the circumferential rib 5c, there is provided a guide surface 9'which serves as a space for removing the thin film 11 and also as a guide for the detachable tool 8.

FIG. 9 is a sectional view showing a state in which a thin groove is provided in place of the attachment / detachment hole of the fan cover in the same manner. As shown in the figure, by providing a thin groove 12 around the position corresponding to the attaching / detaching hole 6b in the fan cover 6, this portion is pierced when necessary for maintenance and the like, and the attaching / detaching tool 8 is inserted. And fan cover 6
It is possible to remove. At this time, the corner portion of the circumferential rib 5c is provided with a guide surface 9 ″ that serves as a space for breaking through this portion and also serves as a guide for the detachable tool 8.
With the configurations shown in FIGS. 8 and 9, it is possible to prevent a general user from using the attachment / detachment hole.

FIG. 10 is a view showing an example in which the arrangement of parts to be noted when removing the fan cover is displayed on the front surface of the fan cover. In the figure, N represents a screw or mounting screw 10, and T represents a claw or locking claw 6d operated from the attachment / detachment hole 6b. In this way, by clarifying what parts are on the back side of the fan cover 6, what parts are there, which direction they are facing, what size they are, etc. It is possible to call attention, prevent damage to parts, etc., and reduce secondary complaints that occur during repair and maintenance.

FIG. 11 shows a display example of the parts to be noted. For example, if it is displayed as N1 / 2, it means that the part is the first of the two used screws. If it is displayed as H72, that part is at the operating temperature. This means that it is a 72 ° C thermal fuse. For example, when the fan cover 6 is frozen,
When it becomes necessary to remove it, it is possible to apply hot air from a dryer etc. to melt the frozen part, but at that time, be careful not to apply hot air near the thermal fuse, It is possible to prevent secondary complaints.

[0023]

As described above, according to the present invention,
It is possible to provide a cover mounting structure in the vicinity of an evaporator in a refrigerator in which a locking claw can be easily removed to remove a fan cover with a simple configuration.

Further, according to the present invention , unnecessary cooling air leakage from here can be prevented by closing the attachment / detachment work hole.

Further, according to the present invention , when the fan cover is removed, the detaching tool is inserted between the guide surface and the fitting rib of the fan cover, so that the guide surface and the detaching tool come into close contact with each other. Therefore, it is possible to reduce the possibility that the fitting rib is scraped or dented. Further, the operation itself of inserting the detachable tool becomes easy.

[0026] In addition, by the present invention lever, by a combination of screws, ordinary users can be difficult to occur the accident, such as touching the moving parts such as a fan to remove the fan cover.

Further, according to the present invention , the fan cover can be removed by removing the closed part of the attachment / detachment work hole and inserting the attachment / detachment tool when necessary for maintenance, etc., so that general maintenance is not impaired. It is possible to prevent the user from using the attachment / detachment work hole.

[0028] In addition, by the present invention lever, or in any position of the back side of the fan cover is what the parts, several places there, either direction or, what kind of size or the like to clarify, fan It is possible to call attention when removing the cover and prevent damage to parts, which occurs during repair and maintenance. 2
Next claim can be reduced.

[Brief description of drawings]

FIG. 1 is a side vertical cross-sectional view around an evaporator in an embodiment of a refrigerator of the present invention.

FIG. 2 is an exploded perspective view of a main part of the present invention.

FIG. 3 is a side vertical cross-sectional view showing a mounted state of a fan cover.

FIG. 4 is a side vertical cross-sectional view showing how the fan cover is detached by the detachable tool.

FIG. 5 is a side vertical cross-sectional view showing a state in which a guide surface is provided on the circumferential rib.

FIG. 6 is a perspective view showing a state in which the periphery of the guide surface of the circumferential rib is viewed obliquely from below.

FIG. 7 is a part of a front view of a fan cover of a type that is also attached with screws.

FIG. 8 is a side vertical cross-sectional view showing a state in which a thin film is provided on the fan cover.

FIG. 9 is a side vertical cross-sectional view showing a state in which a thin groove is provided in the fan cover.

FIG. 10 is a diagram showing an example in which components arranged on a fan cover are displayed on the front surface.

FIG. 11 is a diagram showing a display example of components arranged on a fan cover.

FIG. 12 is an exploded perspective view of the main part of the structure according to the related art.

FIG. 13 is a perspective view showing a main part of a back surface of a fan cover according to a conventional technique.

FIG. 14 is a side vertical cross-sectional view showing an engagement state of a conventional fan cover and an evaporator cover.

[Explanation of symbols]

1 outer box 2 inner box 3 evaporator 4 fans 5 evaporator cover 5a Cold air outlet 5b Locking hole 5c Circular rib 5d Thermal fuse storage 6 fan cover 6a Discharge grill 6b Desorption hole 6c Mating rib 6d locking claw 7 Thermal fuse 8 Detachable tool 9,9 ', 9 "guide surface 10 mounting screws 11 thin film 12 Thin-walled groove 30 shelves 30 'step

Claims (7)

(57) [Claims] 1. A refrigerator comprising an evaporator cover in front of an evaporator and a fan cover in front of the evaporator cover, wherein the fan cover is detachably combined with the evaporator cover, and a front periphery of the evaporator cover is provided. A rib is provided on at least a part of the fan cover, and a fitting rib is provided on the rear surface of the fan cover so as to fit into the rib substantially inwardly or outwardly. The rib has a locking hole for attaching the fan cover. The fitting rib is provided with a locking claw that engages with the locking hole, the fan cover is provided with a desorption hole near the locking claw, and the desorption hole is closed by the rib. A refrigerator characterized by being able to peel off. 2. The fan comprises: an evaporator cover having a cool air discharge port for discharging cool air from the evaporator by a fan; and a fan cover having a cool air discharge grill for discharging the cool air into the chamber. In a refrigerator in which a cover is detachably combined with the evaporator cover, a circumferential rib is provided around the front surface of the evaporator cover, and is fitted substantially inscribed or circumscribed to the circumferential rib around the rear surface of the fan cover. A fitting rib to be fitted is provided, and the circumferential rib has a locking hole for mounting the fan cover, and a locking claw that engages with the locking hole is provided at a rear end of the fitting rib. , The detaching work hole is provided in the fan cover in the vicinity of the engaging claw, and the detaching work is performed.
A refrigerator characterized in that a work hole is closed by the circumferential rib . 3. The refrigerator according to claim 2, wherein the circumferential rib abuts on a rear surface of the fan cover. 4. A guide surface for guiding a detachment tool inserted through the attachment / detachment work hole is provided at a position of the circumferential rib facing the attachment / detachment work hole. Alternatively, the refrigerator according to claim 3. 5. The refrigerator according to claim 2, wherein the fan cover is screwed to the evaporator cover. 6. The refrigerator according to claim 2, wherein the desorption work hole is closed with a thin film, or the desorption work hole is closed and a thin groove is provided around the desorption work hole. . 7. The refrigerator according to claim 1, wherein the contents of the parts arranged on the fan cover are displayed on the front surface of the fan cover.