JP3026392B2 - Vending machine cooling unit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling unit for a vending machine, and more particularly to a mounting structure for the cooling unit.

[0002]

2. Description of the Related Art FIG. 2 is a simplified diagram showing an example of a conventional mounting structure of a cooling unit of this kind of vending machine.

[0003] In the figure, 1 is a compressor, 2 is a condenser, 3 is a piping member interconnecting them, and 4 is a fan for blowing air to the condenser 2. The compressor 1 has a cylindrical first buffer member 5 made of a rubber material having a screw through hole interposed therebetween, and the piping member 3 has a unit base 7 having a mounting plate 6 interposed with a rubber plate or the like.
The condenser 2 and the fan 4 are directly fixed to the unit base 7 by screws. The cooling unit attached to the unit base 7 in this manner is fixed to the bottom plate 10 of a machine room (both not shown) provided below the product storage. The vibration source of this cooling unit is mainly in the compressor 1, and the vibration has a frequency in a wide range.

[0004]

However, since the first cushioning member and the rubber plate used for mounting the compressor and the piping member have a specific shape made of a specific material, vibration in a certain frequency region is not affected. Although the damping is effective, if it is out of the region, the damping effect is reduced, or resonance occurs at a specific frequency, so that satisfactory vibration isolation cannot always be obtained. To cope with these problems, it is conceivable to attach these vibration sources by using vibration isolating members having different materials and shapes from each other. However, there is a problem that the structure becomes complicated.

It is an object of the present invention to provide a cooling unit for a vending machine which has a simple structure and reduces the transmission of vibration of a compressor or the like.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention comprises a compressor, a condenser and piping members connecting the compressor and the condenser, and at least the compressor has a first buffer member interposed therebetween and these members are provided. In a cooling unit of a vending machine, which is mounted on a unit base and accommodated in a machine room, a pedestal comprising a plate and fixing a compressor and a piping member and having a plurality of buffer member mounting holes,
A second buffer member having a bush portion circumscribing the buffer member mounting hole, and flange portions formed at both ends of the bush portion to sandwich and support the pedestal, and having a through hole for screw attachment; And a screw is inserted into the through hole to fix the pedestal to the unit base.

[0007]

According to the present invention, the vibration generated by the compressor is transmitted to the pedestal via the first buffer member or transmitted to the pedestal via the piping member. The vibration transmitted to the pedestal is transmitted to the unit base via the second buffer member. By setting the characteristic values such as the spring constant of the first and second cushioning members to values sufficiently different from each other,
The vibration transmitted to the pedestal has a large damping rate over a wide frequency range, and thus the vibration transmission from the compressor to the unit base has a large damping rate.

[0008]

FIG. 1 is a simplified view showing a mounting structure of a cooling unit of a vending machine as one embodiment of the present invention.

In FIG. 1, the same parts as those in FIG. 2 are denoted by the same reference numerals, and different parts will be described below.

Reference numeral 11 denotes a pedestal made of a plate . As shown in FIG. 2, the compressor 1 has a first cushioning member 5 interposed therebetween, and the piping member 3 has a mounting plate 6 interposed with a rubber plate or the like. And these are fixed by screws 8 and 9. FIG. 3 is a perspective view of the pedestal 11, in which 12 is each screw hole for mounting the compressor 1, and 13 is each screw hole for mounting the piping member 3.

Reference numeral 14 denotes a second cushioning member made of a rubber material.
FIG. 4 is a sectional view thereof. As shown in FIG. 3, each rim of the pedestal 11 is provided with a buffer member mounting hole 15 having a notch. The buffer member 14 includes a bush portion 14A circumscribing the buffer member mounting hole 15 and flange portions 14B and 14C formed at both ends of the bush portion 14A so as to sandwich the pedestal 11, respectively. , And a metal sleeve 16 is mounted in the through hole. The assembly of the cushioning member 14 and the sleeve 16 passes through the notch of the cushioning member mounting hole 15 and is mounted on the same. In this way, the pedestal 11 is placed on the unit base 7 while being sandwiched and supported by the buffer member 14, and attached to the unit base 7 with the screws 18 via the washer 17. The condenser 2 and the fan 4 are directly attached to the unit base 7.

In the above configuration, the vibration generated by the compressor 1 is transmitted through the first buffer member 5 to the pedestal 11.
Or transmitted to the pedestal 11 via the piping member 3. The vibration transmitted to the pedestal 11 is applied to the cushioning member 1.
The signal is transmitted to the unit base 7 via the control unit 4. By setting characteristic values such as spring constants of the first and second cushioning members 5 and 14 to sufficiently different values from each other, the damping rate of vibration transmitted to the pedestal 11 over a wide range of frequencies is reduced. Therefore, the damping rate of the vibration transmission from the compressor 1 to the unit base 7 is also increased, and the resonance vibration of each part is also reduced by each buffer member 5 or 14, so that the vibration and noise of the vending machine main body are reduced. Is reduced.

[0013]

As described above, according to the present invention, the compressor is mounted on the pedestal with the first buffer member interposed therebetween, and the pedestal is sandwiched and supported by the second buffer member on the unit base. Because the fixed configuration is adopted, the characteristic values of the first and second cushioning members are set to sufficiently different values from each other, so that the vibration transmitted to the pedestal can be reduced.
The damping rate increases over a wide frequency range, and thus the damping rate of the vibration transmission from the compressor to the unit stand also increases, thereby reducing the vibration of the vending machine main body.

[Brief description of the drawings]

FIG. 1 is a simplified diagram showing a mounting structure of a cooling unit of a vending machine as one embodiment of the present invention.

FIG. 2 is a simplified diagram showing an example of a conventional mounting structure of a cooling unit of a vending machine.

FIG. 3 is a perspective view of the base of FIG. 1;

FIG. 4 is a sectional view of the second cushioning member of FIG. 1;

[Description of Signs] 1 ... Compressor, 2 ... Condenser, 3 ... Piping member, 4 ... Fan, 5 ... First buffer member, 6 ... Mounting bracket, 7 ... Unit stand, 8, 9, 18 ... Screw, 10 ... bottom plate, 11 ... pedestal, 14 ... second buffer member, 15 ... said buffer member mounting hole.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G07F 9/10 101

Claims (1)

(57) [Claims] At least the compressor is composed of a compressor, a condenser, and piping members connecting the compressor and the like, and at least the compressor is mounted on a unit base with a first buffer member interposed therebetween and stored in a machine room. In a cooling unit of a vending machine, a pedestal made of a plate and fixing a compressor and a pipe member and having a plurality of buffer member mounting holes, a bush portion circumscribing the buffer member mounting hole, and a bush portion formed at both ends of the bush portion, respectively. And a second buffer member having a through hole for screw mounting, wherein the base is inserted into the through hole and the pedestal is attached to the unit. A cooling unit for a vending machine, which is fixed.