JP6194475B2 - refrigerator - Google Patents

Description

  The present invention relates to a fixing structure of a cooling fan provided in a machine room of a refrigerator body.

  In general, a refrigerator is provided with a machine room on the lower rear surface or top rear part of the refrigerator body, and a compressor and a cooling fan for cooling the machine room are provided in the machine room (see, for example, Patent Document 1).

  FIG. 11 shows a refrigerator described in Patent Document 1, in which a machine room 102 is recessed in the rear part of the top surface of the refrigerator body 101, and a compressor 103 and a cooling fan 104 for cooling the machine room 102 are provided in the machine room 102. is there. The machine room 102 is covered with a machine room cover 105.

  The machine room cover 105 is provided with a resin cover 108 provided with an air inlet 107 at one end of a metal cover 106 and a resin cover 108 provided with an exhaust port 109 at the other end. After the compressor 103 is cooled by the outside air sucked from the intake port 107 by 104, it is exhausted from the exhaust port 109.

JP 2011-202859 A

  In the refrigerator described in Patent Document 1, the cooling fan 104 is fixed with screws when fixing the cooling fan 104 to the machine room 102. However, since the pisting must be performed in a narrow space in the machine room 102, workability is poor. In addition, there is a problem that the number of parts is increased due to the need for screws and the cost is increased.

  Therefore, the present invention has been made in view of the above points, and an object thereof is to provide a refrigerator in which the number of parts and the number of assembly steps are reduced.

  In order to solve the above-described conventional problems, the refrigerator of the present invention is provided with a recess in the cooling fan mounting portion of the machine room, and the cooling fan is first and second at the rear end side upper and lower sides and the front end side lower portion of the fan frame. 2, the third projection is provided, and the first, second, and third projections are inserted and fixed in the recesses provided in the machine chamber corresponding to the first, second, and third projections. One of the first and second protrusions provided on the upper and lower sides of the rear end of the fan frame restricts the position in the left-right direction, and the other restricts the position in the up-and-down direction. A small protrusion provided on the inside of the machine chamber is press-fitted into the inner surface of the concave portion of the machine chamber to restrict and fix the movement in the front-rear direction.

  As a result, if the cooling fan is inserted into the recess provided in the machine room by inserting the first, second and third protrusions provided on the fan frame, the cooling fan is attached and fixed to the machine room in a state in which the left / right, up / down and front / back movements are restricted. The cooling fan can be mounted and fixed in the machine room without the need for screws or other parts, and without the need for screwing.

  The refrigerator of the present invention can provide a refrigerator in which a cooling fan can be attached and fixed to a machine room without using screws or the like and without performing screwing work.

The perspective view of the refrigerator which can be put in Embodiment 1 of this invention The perspective view which looked at the refrigerator in Embodiment 1 from the back side Vertical sectional view of the refrigerator in the first embodiment The perspective view when the machine room cover of the refrigerator in Embodiment 1 is removed The expansion perspective view of the cooling fan attachment part of the refrigerator in Embodiment 1 The perspective view explaining the cooling fan attachment of the refrigerator in Embodiment 1 The enlarged front view of the cooling fan attachment part of the refrigerator in Embodiment 1 (A) The expanded side sectional view of the part shown by A of FIGS. 5-7 of the refrigerator in Embodiment 1, (b) is the enlarged plan sectional view. (A) The expanded side sectional view of the part shown by B of FIGS. 5-7 of the refrigerator in Embodiment 1, (b) is an enlarged side sectional view of the part from which the same position differs. (A) The expanded side sectional view of the part shown by C of FIGS. 5-7 of the refrigerator in Embodiment 1, (b) is the enlarged front view. Cross-sectional view of a conventional refrigerator

  The present invention provides a machine room containing a compressor and a cooling fan at the rear of the top surface of the refrigerator main body, a recess is provided in the cooling fan mounting part of the machine room, and the cooling fan is arranged on the rear end side of the fan frame. The first, second, and third protrusions are provided in the lower portion of the front end side, and the first, second, and third protrusions are provided in the machine chamber corresponding to the first, second, and third protrusions. The first and second protrusions provided on the upper and lower sides of the fan frame rear end side are restricted in the left-right direction and the other is restricted in the vertical direction, and provided at the lower part of the front end of the fan frame. The third protrusion is configured such that a small protrusion provided on the edge of the protrusion is press-fitted into the inner surface of the concave portion of the machine chamber to restrict and fix the movement in the front-rear direction.

  As a result, if the cooling fan is inserted into the recess provided in the machine room by inserting the first, second and third protrusions provided on the fan frame, the cooling fan is attached and fixed to the machine room in a state in which the left / right, up / down and front / back movements are restricted. The cooling fan can be mounted and fixed in the machine room without the need for screws or other parts, and without the need for screwing.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In this embodiment, a refrigerator having a machine room provided at the rear of the top surface will be described as an example. However, the present invention is not limited to this.

(Embodiment 1)
1 is a perspective view of a refrigerator that can be placed in the first embodiment of the present invention, FIG. 2 is a perspective view of the refrigerator in the first embodiment as seen from the back side, and FIG. 3 is a longitudinal sectional view of the refrigerator in the first embodiment. 4 is a perspective view when the machine room cover of the refrigerator in the first embodiment is removed, FIG. 5 is an exploded perspective view showing the machine room cover of the refrigerator in the first embodiment, and FIG. 6 is the same embodiment. 7 is an exploded perspective view showing an engagement state of a machine room cover top surface portion of the refrigerator in FIG. 1, and FIGS. 7A and 7B are exploded perspective views showing an engagement state of a machine room cover rear surface portion of the refrigerator in Embodiment 1. FIG. FIG.

  In FIG. 1 and FIG. 2, reference numeral 1 denotes a refrigerator main body, and a plurality of storage rooms such as a refrigerator compartment, a freezer compartment, and a vegetable compartment are provided inside, and can be opened and closed by a door 2. 3 is a machine room installed at the rear of the top surface of the refrigerator main body 1, and is formed by fitting a machine room case 3 a (see FIG. 4) into the rear of the top surface of the refrigerator main body 1. As shown in FIG. 3, an air-cooled condenser 4, a cooling fan 5, and a compressor 6 are installed in this machine room 3 in order from the windward side. By driving the cooling fan 5, the air-cooled condenser 4 and the compressor 6 are compressed. The machine 6 is air-cooled.

  The cooling fan 5 is attached to the fan ring 7, and the fan ring 7 divides the air path in the machine room 3 into the windward side and the leeward side of the cooling fan 5. In addition, a bypass air passage 8 is formed above the air-cooled condenser 4 through which the outside air that is directly drawn into the cooling fan 5 without passing through the air-cooled condenser 4 passes. The bypass air passage 8 supplies the outside air directly to the cooling fan 5 when the air-cooled condenser 4 is blocked due to dust adhesion or the like, and corresponds to a height of about 10% to 15% of the air-cooled condenser 4. A space of 5 to 15 mm is desirable.

  In addition, a lower machine room 9 is provided at the lower back of the refrigerator body 1, and an evaporating dish 11 and a second fan 10 are installed in the lower machine room 9 in order from the windward side. Then, by driving the second fan 10, the outside air in the vicinity of the lower part of the refrigerator body 1 is sucked to promote the evaporation of the defrosted water stored in the evaporating dish 11, and the upward direction provided at the refrigerator body corner portion The outside air cooled by evaporation of the defrost water is supplied to the air-cooled condenser 4 in the machine chamber 3 through the communication air passage 12, and the cooling of the compressor 6 and the compressor 6 is promoted.

  As shown in FIG. 4, the machine room 3 provided in the rear part of the top surface of the refrigerator body 1 is covered with a machine room cover 14 attached to the machine room case 3a. The machine room cover 14 is configured by combining a metal cover 15 formed in a substantially L shape and a resin cover 16 formed in the same L shape.

  The cooling fan 5 provided in the machine room 3 at the rear of the top surface is composed of a fan blade 17 and a resin fan frame 18 surrounding the outer periphery thereof as shown in FIGS. A configuration for mounting the fan 5 to the machine room 3 will be described.

  5 to 7, a first protrusion 19 and a second protrusion 20 are formed on the upper and lower portions on the rear end side of the fan frame 18, and a third protrusion 21 is formed on the lower front end of the fan frame 18. is there. The first protrusion 19 fits into a first recess 22 provided in the upper part of the rear surface of the machine room 3 in the vertical direction, and the second protrusion 20 is provided in a second recess 23 provided in the lower part of the rear surface of the machine room 3 in the horizontal direction. The third projection 21 is fitted and fixed to the machine chamber 3 by fitting into a third recess 24 provided at the lower part of the front end of the machine chamber 3.

  More specifically, FIGS. 8A and 8B show a fitting state between the first protrusion 19 at the upper rear end of the fan frame 18 and the first recess 22 of the machine chamber 3 shown in FIG. (A) is an enlarged side sectional view, (b) is an enlarged plan sectional view. In the same figure, the 1st protrusion 19 is fitted in the 1st recessed part 22 formed in the up-down direction, and as shown in the same figure (b), the position control is carried out so that it may not move in the left-right direction.

  FIGS. 9A and 9B show the fitting state between the second protrusion 20 at the lower rear end of the fan frame 18 and the second recess 23 of the machine chamber 3 shown in FIG. It is an expanded sectional side view of the part from which a position differs also in b). As shown in FIG. 5A, the second protrusion 20 overlaps with the upper end surface 23a of the second recess 23 formed in the machine chamber 3 in the horizontal direction and is fixed by pressing downward. The position is restricted so as not to move. The second recess 23 is partially formed with a notch 23 b in order to reduce the force for fitting the second protrusion 20.

10 (a) and 10 (b) show the fitting state between the third protrusion 21 at the upper rear end of the fan frame 18 and the third recess 24 of the machine chamber 3 shown by C in FIGS. An enlarged side sectional view, (b) is an enlarged front view seen from the front side. In the figure, a third protrusion 21 is fitted in a third recess 24 provided on the front end face of the machine room 3, and a small protrusion provided on the front surface of the third protrusion 21 as shown in FIG. 25 is overlapped with the small protrusion pressing portion 24b provided in a bridge shape between the left and right cross-sectional substantially L-shaped walls 24a forming the third recess 24 and pressed backward, and is shown in FIG. In this manner, the small protrusions 26 provided at both end edges of the third protrusion 21 are pressed against the inner surfaces of both side walls of the substantially L-shaped wall 24a on the left and right sides of the third recess 24, and the position is regulated so as not to move in the front-rear direction. ing.

  As shown in FIG. 6, the cooling fan 5 of the refrigerator having the above configuration is fitted with the first protrusion 19 provided on the rear end side upper portion of the fan frame 18 in the first recess 22 of the machine room 3, and thereafter The second projection 20 at the lower end of the rear end of the fan frame 18 is fitted into the second recess 23 at the lower end of the front end of the machine chamber 3 while rotating around the first projection 19 fitted in the first recess 22. At the final stage, the third protrusion 21 of the fan frame 18 is fitted into the third recess 24 of the machine chamber 3, and the small protrusions 25 and 26 are press-fitted into the inner surface of the third recess 24 to complete the attachment to the machine chamber 3. To do.

  And as already described in this state, the position in the left-right direction is regulated by the fitting of the first protrusion 19 and the first recess 22, and the position in the up-down direction is regulated by the fitting of the second protrusion 20 and the second recess 23, The position in the front-rear direction is regulated by the fitting of the third protrusion 21 and the third recess 24.

  Therefore, the cooling fan 5 can be firmly fixed without using screws or the like, so that the screws can be eliminated and at the same time the screw fixing operation can be eliminated.

  As mentioned above, although the refrigerator which concerns on this invention was demonstrated using each said embodiment, this invention is not limited to this, Within the meaning and range equivalent to the claim of this invention All changes are included.

  For example, the right and left direction regulation of the cooling fan 5 is performed by fitting the first protrusion 19 and the first recess 22, and the upper and lower direction regulation is performed by fitting the second protrusion 20 and the second recess 23. The restriction may be performed by fitting the second protrusion 20 and the second recess 23, and the vertical direction restriction may be performed by fitting the first protrusion 19 and the first recess 22.

  As described above, the refrigerator according to the present invention can provide a refrigerator in which a cooling fan can be attached and fixed to a machine room without using screws or the like and without performing this screwing operation. Therefore, the present invention can be widely applied to other refrigerator-freezer applied products such as home refrigerators, commercial refrigerators, and vending machines.

DESCRIPTION OF SYMBOLS 1 Refrigerator main body 2 Door 3 Machine room 3a Machine room case 4 Air cooling condenser 5 Cooling fan 6 Compressor 7 Fan ring 8 Bypass air path 9 Lower machine room 10 Second fan 11 Evaporating dish 12 Communication air path 14 Machine room cover 15 Metal cover 16 Resin cover 17 Fan blade 18 Fan frame 19 1st protrusion 20 2nd protrusion 21 3rd protrusion 22 1st recessed part 23 2nd recessed part 24 3rd recessed part 24a Sectional substantially L-shaped wall 24b Small protrusion holding part 25 , 26 Small protrusion

Claims (1)

A machine room containing a compressor and a cooling fan is provided at the rear of the top surface of the refrigerator main body, and a recess is provided in the cooling fan mounting portion of the machine room. Provided with first, second and third projections, and the first, second and third projections are inserted into the recesses provided in the machine chamber corresponding to the first, second and third projections. A third protrusion provided at the lower part of the front end of the fan frame, which is fixed, and which restricts the position in the left and right direction on one side of the first and second protrusions provided on the upper and lower sides of the rear end side of the fan frame and the position on the other side in the vertical direction. Is a refrigerator configured to press-fit a small protrusion provided on the edge of the protrusion into the inner surface of the concave portion of the machine room to restrict and fix the movement in the front-rear direction.

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