JP2002048438A - Ice making machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ice making machine permitting easily the attachment or detachment of a fan and a fan motor. SOLUTION: The shroud 17 of an air-cooled condenser 13 is arranged at the upper part in the ice making machine main body 11 by a condenser bracket 18 while a motor bracket 19 is arranged above the shroud 17. The motor bracket 19 is disposed on and fixed to a front frame 20 and a rear frame 21 which are constituting the ice making machine main body 11. Two sets of fan motors 25 are supported on the motor bracket 19.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an ice making machine,
In particular, the present invention relates to a mounting structure of a fan motor for cooling a condenser.

[0002]

2. Description of the Related Art The internal structure of a conventional ice making machine is shown in FIG.
The compressor 1, the condenser 2, the expansion valve 3, and the evaporator 4 are sequentially connected via a refrigerant pipe 5 to form a refrigeration cycle. As shown in FIG. 10, the condenser 2 has a fan 7 connected to the fan motor 6, a motor bracket 8 for mounting the fan motor 6, and a shroud 9, and has a base 10 of the ice making machine. Motor bracket 8 on top
And shroud 9 were attached.

[0003]

However, since the refrigerant pipe 5 is provided around the motor bracket 8, the fan 7 and the fan motor 6 are connected to the motor bracket 8 at the time of replacement or maintenance of the fan 7 or the fan motor 6. There is a problem that the work of detaching from the base 10 is difficult together with the work 8. In addition, since the motor bracket 8 and the shroud 9 are provided independently of each other on the base 10, the motor bracket 8 and the shroud 9 must be positioned and attached to each other so that the fan 7 does not contact the shroud 9. , Installation work was troublesome.

The present invention has been made to solve such a problem, and an object of the present invention is to provide an ice making machine in which a fan and a fan motor can be easily attached and detached. Another object of the present invention is to provide an ice making machine that can easily position the fan and the shroud.

[0005]

According to the present invention, there is provided an ice making machine in which an air-cooled condenser is arranged in an ice making machine main body, wherein a shroud of the condenser is arranged at an upper portion in the ice making machine main body. In addition, a motor bracket of the condenser is fixed to the ice making machine body above the shroud, and a fan motor is attached to the motor bracket. A notch may be formed in the shroud of the condenser, and the motor bracket may be fixed to the ice making machine main body through the notch. Further, a plurality of fan motors may be attached to the motor bracket in parallel.

[0006]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 and 2 show the internal structure of an ice making machine according to an embodiment of the present invention. Inside the ice making machine body 11, a compressor 12, an air-cooled condenser 13, 2
The expansion valve 14 and the evaporator 15 of the system are sequentially connected via a refrigerant pipe 16 to form a refrigeration cycle. The shroud 17 of the air-cooled condenser 13 is provided with a condenser bracket 18.
Thus, a motor bracket 19 is disposed above the shroud 17 in the upper part of the ice making machine main body 11.
As shown in FIG. 3, the motor bracket 19 is mounted and fixed on a front frame 20 and a rear frame 21 constituting the ice making machine main body 11. Steps are formed on the front frame 20 and the rear frame 21 to make it easier to mount the end of the motor bracket 19. The motor bracket 19 has two mounting holes 22 for supporting two fan motors.

As shown in FIGS. 4 and 5, notches 23 and 24 are formed at the upper end of the shroud 17 facing the front frame 20 and the rear frame 21, respectively, and through these notches 23 and 24, respectively. The motor bracket 19 includes the front frame 20 and the rear frame 2
Fixed to 1. As shown in FIG. 4, two mounting holes 22 of the motor bracket 19 are respectively provided with fan motors 25.
, And a fan 26 is attached to each fan motor 25 so as to face downward. As shown in FIG. 6A, the upper front side of the condenser bracket 18 is attached to the front frame 20 in a state in which it contacts the lower surface of the front frame 20.
As shown in FIG. 6 (b), the rear upper portion 8 is inserted and locked in the rear frame 21.

As described above, since the motor bracket 19 is fixed to the front frame 20 and the rear frame 21 above the shroud 17 and the fan motor 25 is attached to the motor bracket 19, the refrigerant piping 16
Motor 25 and fan 26 without interference
Can be easily detached. When assembling the ice making machine, the front frame 20 and the rear frame 21
Since both hands of the operator are free with both ends of the motor bracket 19 placed on the motor bracket 19, the work becomes easier. Further, since both ends of the motor bracket 19 are fixed to the front frame 20 and the rear frame 21, the structure is strong against vibration of the fan motor 25, and the two fan motors 25 can be arranged side by side.

Further, since the notches 23 and 24 of the shroud 17 serve as guides for mounting the motor bracket 19, the positioning of the fan 26 and the shroud 17 is easily performed, and there is a fear that the fan 26 may abut on the shroud 17. Disappears. In this ice maker, a vertically long air-cooled condenser 13 extending from a front frame 20 to a rear frame 21 of the ice maker main body 11 is disposed in an upper portion of the ice maker main body 11, and two evaporators 15 are connected to the ice maker main body. 11, the outer dimensions of the ice making machine main body 11 can be reduced. In particular, since the upper part in the ice making machine main body 11 in which the condenser 13 is arranged was a dead space in the past, a sufficient air passage was able to be secured. In general, a water control valve or the like is often provided in the air passage of the condenser. However, as in the conventional ice making machine shown in FIG.
Is fixed to the front end side of the base 10, since the condenser 2 becomes an obstacle even if the front panel of the ice making machine is removed,
Maintenance and replacement of the water control valve, etc. were performed from the side of the ice machine. That is, it was necessary to secure a service space beside the ice machine. On the other hand, in the ice making machine of this embodiment described above, since the condenser 13 is disposed in the upper part inside the ice making machine main body 11, the service space is provided beside the ice making machine.
Even in the case where there is no screw, the maintenance and replacement of the water control valve and the like disposed below the condenser 13 can be easily performed by removing the front panel of the ice making machine.

As shown in FIG. 7, if the right evaporator 15 of the two evaporators 15 is shifted behind the left evaporator 15, the refrigerant connected to these evaporators 15 is removed. The installation space for the pipe 16 and the expansion valve 29 is small, and the ice making machine main body 11 can be made more compact. Further, as shown in FIG.
A chute 28 for dropping the ice produced in the ice making unit to an ice storage (not shown) is disposed on the back of the ice making unit 5 in which the evaporator 15 is disposed. By disposing the float tank 27 behind the vessel 15, the float tank 27 can be arranged in a space formed behind the left chute 28.

When a water-cooled condenser is used in addition to the air-cooled condenser 13, when some kind of detecting means detects an abnormality of the fan motor 25 of the air-cooled condenser 13, the user is informed. It is preferable that the operation of the ice making machine be continued while transmitting the alarm signal. As the alarm signal, blinking or lighting of a 7-segment on a microcomputer, blinking or lighting of an abnormal lamp, an alarm from a buzzer, and the like are considered. If the operation of the ice making machine is immediately stopped due to the detection of the abnormality of the fan motor 25, ice will not be manufactured suddenly, which may hinder the business of the store. Therefore, when the abnormality of the fan motor 25 is detected, if the operation of the ice making machine is continued by the water-cooled condenser while transmitting the alarm signal to the user, the user is requested to perform the service until the abnormality is noticed. Until the repair is completed, the operation of the ice making machine is not stopped, and it is possible to prevent the operation of the store from being hindered. Since the warning signal is issued, the user can stop the operation of the ice making machine when it is desired to minimize the trouble in running costs such as an increase in water consumption in the water-cooled condenser.

Here, as means for detecting an abnormality of the fan motor 25 of the air-cooled condenser 13, for example, the outlet-side refrigerant temperature of the condenser 13 is detected, and when the detected temperature exceeds a set value, it is determined that there is an abnormality. Although a method is conceivable, when two fan motors 25 are arranged in parallel as in the ice maker of the above-described embodiment, even if one of the fan motors fails, the temperature of the detection portion is reduced by the other fan motor. And there is fear that it is not judged as abnormal.

Therefore, a Hall IC circuit is mounted on each of the two fan motors 25, and a pulse signal sent from the Hall IC circuit is turned on by a microcomputer.
/ OFF signal, and it is preferable to detect an abnormality of each fan motor 25 based on the ON / OFF signal. Specifically, a magnet is embedded in the rotating shaft of each fan motor 25, and a pulse signal transmitted from an IC circuit using a Hall element is monitored by rotating the rotating shaft.
If the rotation of the rotating shaft is slowed or stopped due to the failure of the fan motor 25, the pulse interval becomes longer or a pulse signal is not sent. By mounting such a Hall IC circuit on each fan motor 25, a failure of each fan motor 25 can be detected independently. In addition, since the temperature of the refrigerant at the outlet side of the condenser 13 is affected by the ambient temperature to a considerable extent, it is necessary to determine the set value in consideration of the installation environment of the ice maker, etc. The failure of the fan motor 25 can be reliably detected without being affected.

[0014]

As described above, according to the present invention, the shroud of the condenser is disposed at the upper part in the ice making machine main body, and the motor bracket of the condenser is fixed to the ice making machine main body above the shroud. Since the fan motor is attached to the motor bracket, attachment and detachment of the fan and the fan motor become easy. Further, if the motor bracket is fixed to the ice making machine main body through the cutout of the shroud of the condenser, the fan and the shroud can be easily positioned.

[Brief description of the drawings]

FIG. 1 is a plan view showing an internal structure of an ice making machine according to an embodiment of the present invention.

FIG. 2 is a side view showing the internal structure of the ice making machine according to the embodiment.

FIG. 3 is a perspective view showing a motor bracket used in the embodiment.

FIG. 4 is a perspective view showing a mounting structure near a shroud and a motor bracket.

FIG. 5 is a front view showing a mounting structure near a shroud and a motor bracket.

FIG. 6 shows a mounting structure of a condenser bracket,
(A) is a figure which shows the front upper part of a condenser bracket, (b) is a rear upper part figure of a condenser bracket.

FIG. 7 is a plan view showing a method of arranging two evaporators.

FIG. 8 is a plan view showing an internal structure of an ice making machine according to another embodiment.

FIG. 9 is a plan view showing the internal structure of a conventional ice making machine.

FIG. 10 is a perspective view showing a method of attaching a fan motor of a conventional ice making machine.

[Explanation of symbols]

11 ice machine body, 12 compressor, 13 air-cooled condenser, 14 expansion valve, 15 evaporator, 16 refrigerant pipe, 17
Shroud, 18 condenser bracket, 19 motor bracket, 20 front frame, 21 rear frame, 22 mounting hole, 23, 24 cutout, 25 fan motor, 26 fan, 27 float tank, 28
Chute, 29 expansion valve.

Claims (3)

[Claims] An ice making machine having an air-cooled condenser disposed in an ice making machine main body, wherein a shroud of the condenser is arranged in an upper part of the ice making machine main body, and a motor bracket of the condenser is made above the shroud for ice making. An ice making machine fixed to a machine body and having a fan motor attached to a motor bracket. 2. The shroud of the condenser has a notch,
2. The ice making machine according to claim 1, wherein the motor bracket is fixed to the ice making machine main body through a cutout of the shroud. 3. The ice making machine according to claim 1, wherein a plurality of fan motors are mounted on the motor bracket in parallel.