JP3735559B2 - Refrigeration equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to improvements in refrigeration apparatuses such as ice makers and freezers, and more specifically, a phenomenon in which exhaust hot air exhausted from a machine room is sucked back into the machine room by an installation environment (hereinafter, this phenomenon is referred to as a “short cycle”). The purpose is to prevent).
[0002]
[Prior art]
FIG. 13 shows an example of an ice making machine R which is one of conventional refrigeration apparatuses. The ice making machine R includes a refrigeration mechanism T that freezes water to produce ice and a stock S that stores ice produced by the refrigeration mechanism T, and the refrigeration mechanism T on the stock S It is comprised so that it may mount. In addition, a plurality of refrigeration mechanism parts T are stacked on the stock part S.
[0003]
As shown in FIG. 14A, the inside of the refrigeration mechanism T is partitioned into a machine room 1 and an ice making room 20, and the machine room 1 is used for freezing water into ice. Necessary equipment, that is, a compressor 2, a fan motor 3, a fan 4, an air-cooled condenser 5, a control box 6, and the like are provided. Further, the front portion 7, the side portion 8 and the rear portion 9 of the machine room portion 1 are each provided with openings for indoor ventilation. Here, the front opening is provided with an intake port 10 for taking outside air into the room, a side surface and a rear portion. The openings are exhaust ports 11 and 12 for discharging indoor air (exhaust hot air) containing hot air to the outside. Note that a louver provided with a filter is attached to the intake port 10, and the exhaust ports 11 and 12 are punched holes as shown in FIGS.
[0004]
During the ice making operation, the ice making machine R rotates the fan 4 by the fan motor 3 and performs heat exchange of the air-cooled condenser 5 with the outside air sucked from the intake port 10 on the front side, and then the air including the exhaust heat is side-faced. And it exhausts outside from the exhaust ports 11 and 12 on the back. During deicing, the fan 4 is stopped to stop intake and exhaust.
[0005]
[Problems to be solved by the invention]
As illustrated in FIGS. 15A and 15B, when the ice making machine R is installed in a place surrounded by the wall surface W on both the left and right side surfaces and the back surface, the ice making machine R and the wall surface W are installed depending on the installation environment. When a sufficient gap cannot be secured between them, particularly when the back surface of the ice making machine R needs to be in close contact with the wall surface W (see FIG. 15B), exhaust heat air is sufficiently exhausted from the exhaust port 12 on the back surface. become unable. For this reason, since the air volume of the exhaust hot air f discharged from the side exhaust port 11 is increased and the wall surface W is close, the exhaust heat air f colliding with the wall surface W wraps around the front side of the ice making machine R, There is a possibility that a short cycle of sucking again from the air inlet 10 occurs, and the heat exchange efficiency of the air-cooled condenser 5 in the machine room 1 is deteriorated and the ice making capacity is lowered.
[0006]
Further, by sucking the exhaust hot air f again, the refrigerant pipe of the air-cooled condenser 5 is warmed, so that the gas temperature in the pipe rises. As a result, the ice falling from the ice making chamber 20 becomes very fast during deicing. However, the ice that has fallen early has a low temperature at the center, so that there is also a problem of causing an arching phenomenon in which adjacent ices in the stock part S are re-freezed and integrated. Further, since the air-cooled condenser 5 is warmed, the gas pressure in the refrigerant pipe increases, the high pressure switch for protecting the refrigeration circuit malfunctions, and the ice making machine can be temporarily operated until this switch is reset. Sometimes it disappears.
[0007]
In addition, it is thought that the above-mentioned problem becomes more remarkable in the multistage type ice making machine R in which a plurality of refrigeration mechanism sections T are stacked on the stock section S.
[0008]
[Means for Solving the Problems]
A feature of the means adopted by the present invention in order to solve the above-mentioned conventional problems is that an intake port for taking outside air into a machine room portion of the refrigeration mechanism portion is provided in an adjacent surface portion of the refrigeration mechanism portion. And an exhaust port for sending exhaust heat air from the inside of the machine room to the outside, respectively, facing the front surface of the exhaust port, and moving the flow of exhaust heat air blown from the exhaust port away from the intake port In the refrigeration apparatus provided with the exhaust guide means for guiding, the refrigeration apparatus is formed by stacking a plurality of refrigeration mechanism sections, and the exhaust guide means is used as at least one refrigeration mechanism among the plurality of refrigeration mechanism sections. The inner guide means provided in correspondence with the exhaust port of the part and the outer guide means provided so as to cover the outside of the inner guide means together with other exhaust ports with a space therebetween, are guided by the inner guide means. Is In that the exhaust hot air which is guided by the warmed air and the outer guiding means is guided independently.
[0009]
Even when the refrigeration apparatus according to the present invention is installed in an area where, for example, the three sides of the left and right side surfaces and the back surface are surrounded by wall surfaces, and a sufficient gap cannot be secured between the refrigeration apparatus and the wall surface due to the above configuration. Since the exhaust hot air discharged from the exhaust port is guided in a direction away from the intake port, a short cycle in which the exhaust hot air is sucked into the intake port can be prevented.
[0010]
By the way, in the case where the refrigeration apparatus is a multistage type in which a plurality of refrigeration mechanism parts are stacked, the inner guide means is provided corresponding to each exhaust port of each refrigeration mechanism part, You may comprise so that it may cover with a guide means .
[0011]
DETAILED DESCRIPTION OF THE INVENTION
[ Reference Technology 1 ]
1 and 2 are diagrams for explaining a reference technique related to the present invention, and FIG . 1 (A) is a plan view showing an example applied to an ice making machine R which is one of refrigeration apparatuses. FIG. 5B is a front view. Also, FIG. 2, there is shown an example of exhaust guide means 14, FIG. (A) is a perspective seen from the inner surface side view, the situation Fig. (B) is mounted to the side surface 8 of the icemaker R FIG.
[0012]
The basic configuration and basic operation of the ice making machine R in this example may be the same as in the past. That is, it comprises a refrigeration mechanism T that manufactures ice and a stock S that stores ice, and the refrigeration mechanism T is mounted on the stock S. The inside of the refrigeration mechanism T is divided into a machine room 1 and an ice making room 20, and a compressor 2, a fan motor 3, a fan 4, an air-cooled condenser 5, a control box 6 and the like are provided in the machine room 1. (See FIG. 14). The front portion 7 of the machine room 1 is provided with an intake port 10 for taking in outside air, and the side surface portion 8 and the back surface portion 9 are provided with exhaust ports 11 and 12 for discharging exhaust hot air to the outside. A louver provided with a filter is attached to the intake port 10 as desired, and the exhaust ports 11 and 12 are formed as punching holes (see FIGS. 14B and 14C), for example. During operation of the ice making machine R, the fan 4 is driven to rotate by the fan motor 3, and the air-cooled condenser 5 is exchanged with the outside air sucked from the intake port 10 on the front side. Hot air) is discharged to the outside from the side and rear exhaust ports 11 and 12. During deicing, the fan 4 is stopped to stop intake and exhaust.
[0013]
The ice making machine R of this example has a feature in that an exhaust guide means 14 that covers the front surface of the exhaust port 11 on the side surface 8 is provided. The exhaust guide means 14 has a form as shown in FIG. 2, for example, and has a main body portion 14 a having a surface facing the exhaust port 11 and an upper end surface opened, and an edge that contacts the refrigeration mechanism T in the main body portion 14 a. And a flange portion 14b formed in the portion. An opening P through which the fixing screw N is inserted is formed in the flange portion 14b. Moreover, in order to be able to guide the exhaust hot air efficiently, it is desirable that a lower region of a portion of the main body portion 14a facing the exhaust port 11 is an inclined surface 14c.
[0014]
As shown in FIGS. 1A and 1B, the ice making machine R of this example configured as described above has one side 8a and the back 9 in close contact with the wall W, and the other side 8 and the wall W. Even when it is installed in a place where a sufficient gap cannot be secured between the two, the direction of the exhaust hot air f discharged from the exhaust port 11 during operation is set upward by the exhaust guide means 14 attached to the side surface 8. This exhausted hot air f is prevented from turning around to the front side of the refrigeration mechanism T. Accordingly, since there is no possibility of a short cycle in which the exhaust hot air f is sucked from the front air inlet 10, the temperature rise of the air-cooled condenser in the machine room 1 can be suppressed, thereby causing an arching phenomenon or a malfunction of the high pressure switch. The conventional problems are eliminated.
[0015]
First Embodiment
3 to 5 show an embodiment in which the present invention is applied to a two-stage ice making machine R configured by stacking two refrigeration mechanism sections T1 and T2 on a stock section S. FIG. The exhaust guide means 15 of this example includes an inner guide means 15A mounted on the upper refrigeration mechanism section T1 of the refrigeration mechanism sections T1 and T2 stacked in two stages, and an upper and lower stage so as to wrap the inner guide means 15A. And outer guide means 15B mounted across the refrigeration mechanism portions T1 and T2. Both the inner and outer guide means 15A, 15B have the same basic shape, and a flange portion (b) having an opening P for insertion of a screw N at an end edge portion in contact with the refrigeration mechanism portions T1, T2 in the main body portion (a). ), And the lower portion of the main body (a) is formed on the inclined surface (c).
[0016]
In this ice making machine R, the exhaust hot air f discharged from the exhaust port 11 of the upper refrigeration mechanism T1 is guided upward by the inner guide means 15A and discharged from the exhaust port 11 of the lower refrigeration mechanism T2. The hot air f is guided between the inner guide means 15A and the outer guide means 15B and sent upward. Thus, in this example, since the exhaust hot air f discharged | emitted from freezing mechanism part T1, T2 of an upper stage is each independently guided upwards, it is easy to form a smooth gas flow. In addition, since the outer guide means 15B is designed to cover the side portions of the refrigeration mechanism portions T1 and T2 stacked one above the other, it is possible to prevent the outside air state from affecting the flow of the exhaust heat air f.
[0017]
By the way, in the two-stage ice making machine R, it is conceivable that the inner guide means 15A is omitted and only the outer guide means 15B is used, but in that case, it is discharged from the upper and lower refrigeration mechanism sections T1 and T2. There is a risk that the exhausted hot air f will directly affect the outer guide means 15B which is open only at the upper end, creating turbulent flow and making smooth exhaust difficult. Therefore, in order to smoothly discharge the exhaust hot air f, it is desirable that the exhaust guide means 15 has an internal / external double structure as in this example. When the double-structured exhaust guide means 15A, 15B as in this example is employed, as shown in FIG. 5, a space between the upper and lower exhaust ports 11, 11 is secured in order to secure an attachment site for the inner guide means 15A. It is necessary to have an appropriate interval.
[0018]
[ Reference Technology 2 ]
In the case of the two-stage ice making machine R in which the refrigeration mechanism portions T1 and T2 are stacked in two upper and lower stages, the exhaust guide means 16 may be configured as shown in FIGS. That is, the exhaust guide means 16 is composed of vertically symmetric exhaust guide means 16A and 16B that are separately attached to the upper and lower refrigeration mechanism portions T1 and T2, respectively, and the exhaust hot air f discharged from the upper refrigeration mechanism portion T1. Is guided upward by the upper guiding means 16A, and the exhaust hot air f discharged from the lower refrigeration mechanism T2 is guided by the lower guiding means 16B.
[0019]
The form of the upper and lower exhaust guide means 16A, 16B is not particularly limited. In this example, as illustrated in FIG. 7, since one type of exhaust guide means is arranged vertically symmetrically to provide the upper and lower guide means 16A and 16B, the manufacturing cost can be reduced.
[0020]
Second Embodiment
8 and 9 show an embodiment in which the present invention is applied to a three-stage ice making machine R in which three refrigeration mechanism sections T1, T2, and T3 are stacked on a stock section S. FIG. The exhaust guide means 17 of this example includes an inner guide means 17A attached to each of the refrigeration mechanisms T1, T2, and T3, and an outer guide means 17B attached so as to wrap around the inner guide means 17A. Consists of. The basic shape of the inner guide means 17A is that a flange portion (b) through which a screw is inserted is formed at an end edge portion of the main body portion (a) that contacts the refrigeration mechanism T1 (T2 or T3). An inclined surface (c) is formed in the lower part. On the other hand, the outer side guide means 17B is a thin rectangular parallelepiped shape which notched two surfaces, an upper end and a front surface.
[0021]
In the ice making machine R, the exhaust hot air f discharged from the exhaust port 11 of the upper refrigeration mechanism T1 is guided upward by the uppermost inner guide means 17A. The exhaust hot air f discharged from the middle and lower refrigeration mechanisms T2, T3 is guided upward by the middle and lower inner guide means 17A, and then guided along the inner surface of the outer guide means 17B. Sent out. As described above, in this example, the exhaust hot air f discharged from the refrigeration mechanism portions T1, T2, and T3 stacked in three stages is independently guided upward by the inner guide means 17A, and the entire exhaust hot air f is outside. Since the guide means 17B collects the flow into one stable flow, the exhaust hot air f can be discharged smoothly. Therefore, the ventilation efficiency in the machine room is improved.
[0022]
When the inner guide means 17A is attached to each of the three stages of the refrigeration mechanism portions T1, T2, T3 as in this example, an appropriate interval is provided between the upper and lower adjacent inner guide means 17A, and the exhaust hot air f Must be able to flow upwards without resistance.
[0023]
[Other Embodiments]
When the refrigeration apparatus to which the present invention is applied is a multistage ice maker R, the number of refrigeration mechanism sections stacked may be appropriately increased or decreased as desired. Further, as shown in FIG. 10, the exhaust guide means 18 in the multistage ice making machine R in which a plurality of refrigeration mechanism portions T1, T2, T3 are stacked is provided at the exhaust ports 11 of the respective refrigeration mechanism portions T1, T2, T3. It is also conceivable to constitute the upward flip-up wing 18A to be mounted and the outer guide means 18B to be mounted straddling up and down so as to wrap up the wing 18A.
[0024]
Furthermore, according to the present invention, as shown in FIGS. 11A and 11B, the air inlet 10 is provided on one side 8 of the refrigeration mechanism T, and the exhaust 11 is provided on the back surface 9 of the refrigeration mechanism T. It is also possible to apply to the refrigeration apparatus R. In this case, the exhaust guide means 14 is mounted so as to cover the front surface of the exhaust port 11 on the back surface 9. In addition, as shown in FIG. 12, when the refrigeration apparatus R provided with the exhaust port 11 on the upper surface 30 of the refrigeration mechanism T is installed at a location where the ceiling surface X is located near the upper part of the refrigeration mechanism T, The exhaust guide means 14 may be mounted on the upper surface 30 of the refrigeration mechanism T so that the exhaust hot air f discharged from the exhaust port 11 is guided in a direction away from the intake port 10.
[0025]
By the way, as is apparent from each of the embodiments described above, the ice making machine R to which the present invention is applied is a direction in which the direction of the exhaust hot air f discharged from the exhaust port 11 provided in the machine room is away from the ice making room. Therefore, the effect of preventing the exhausted hot air f from adversely affecting the ice making process and manufactured ice is also exhibited. The refrigeration apparatus to which the present invention is applied may be an apparatus provided with a refrigeration mechanism such as a freezer in addition to an ice maker. In addition, specific embodiments of the present invention do not preclude changes as appropriate according to the state of implementation.
[0026]
【The invention's effect】
According to the present invention, in the refrigeration apparatus in which the intake port and the exhaust port are provided on the adjacent surface portions, the exhaust guide means for guiding the flow of the exhaust hot air blown from the exhaust port in the direction away from the intake port is provided. It is possible to prevent a short cycle in which the exhaust hot air discharged from the exhaust port is sucked into the intake port. Therefore, even if the refrigeration system is installed in an area where the left and right sides and the back are surrounded by walls and a sufficient gap cannot be secured between the walls, the refrigeration system can be The conventional defect that the refrigerant piping of the air-cooled condenser provided in the mechanism is warmed is eliminated. Therefore, since the heat exchange efficiency of the air-cooled condenser can be maintained satisfactorily, it is possible to prevent the problem that the high-pressure switch is erroneously operated due to the pressure increase due to the temperature rise of the refrigerant gas. Further, since the exhaust guide means operates to smooth the flow of the exhaust hot air discharged from the exhaust port, the ventilation efficiency in the machine room is improved.
[0027]
In addition, the present invention is applied to a refrigeration apparatus in which a large amount of exhaust hot air is discharged and a discharge area extends over a wide range, such as a multistage ice maker configured by stacking a plurality of refrigeration mechanisms. , Particularly effective. Furthermore, in the ice making machine to which the present invention is applied, the effect of preventing the arching phenomenon that occurs because the temperature of the refrigerant gas in the refrigerant pipe rises and the ice falls early at the time of deicing is also exhibited.
[Brief description of the drawings]
[1] A relates reference technology 1 relating to the present invention, FIG. (A) a plan view showing an installation condition of manufacturing ice machine, FIG. (B) is a front view showing an installation condition of the ice making machine is there.
FIG. 2 relates to Reference Technology 1 related to the present invention , in which FIG. (A) is a perspective view of the exhaust guide means seen from the inner surface side, and FIG. (B) is a side view of the refrigeration mechanism section. It is a front view which shows the condition with which the part was mounted | worn.
FIG. 3 relates to the first embodiment of the present invention, in which FIG. (A) is a plan view showing an installation state of an ice making machine to which the present invention is applied, and FIG. (B) is an installation state of the ice making machine; It is the front view which cut the exhaust guide means part shown.
FIG. 4 relates to the first embodiment of the present invention, and is a perspective view of exhaust guide means as seen from the inner surface side.
FIG. 5 relates to the first embodiment of the present invention, and is a front view of a main part showing a state in which exhaust guide means is mounted on a side surface portion of a refrigeration mechanism.
FIG. 6 relates to Reference Technology 2 related to the present invention , in which FIG. (A) is a plan view showing an installation state of an ice making machine to which the present invention is applied, and FIG. (B) is an installation state of the ice making machine; It is the front view which cut the exhaust guide means part shown.
FIG. 7 relates to the reference technique 2 related to the present invention , and is a perspective view of the exhaust guide means as seen from the inner surface side.
FIG. 8 relates to a second embodiment of the present invention, in which FIG. (A) is a plan view showing an installation state of an ice making machine to which the present invention is applied, and FIG. (B) is an installation state of the ice making machine; It is the front view which cut the exhaust guide means part shown.
FIG. 9 relates to a second embodiment of the present invention, and is a perspective view of exhaust guide means as seen from the inner surface side.
FIG. 10 relates to another embodiment of the present invention, and is a cross-sectional front view showing an exhaust guide means portion showing an installation state of an ice making machine.
FIG. 11 relates to still another embodiment of the present invention, in which FIG. (A) is a plan view showing an installation state of an ice making machine to which the present invention is applied, and FIG. (B) is an installation state of the ice making machine; FIG.
FIG. 12 relates to still another embodiment of the present invention, in which FIG. (A) is a front view showing the installation state of the ice making machine to which the present invention is applied, and FIG. (B) shows the installation state of the ice making machine. It is a side view.
FIG. 13 is a front view showing an installation state of a conventional ice making machine.
14A and 14B show a refrigeration mechanism of a conventional ice making machine. FIG. 14A is a plan sectional view schematically showing the internal structure, FIG. 14B is a side view, and FIG. FIG.
FIG. 15 is a diagram for explaining problems in a conventional ice making machine, in which FIG. (A) is a plan view showing a situation in which there is a slight gap between the back surface portion and the wall surface, and FIG. It is a top view which shows the condition which made the back part closely_contact | adhere to a wall surface.

Claims (3)

The adjacent surface portion of the refrigeration mechanism unit is provided with an intake port for taking outside air into the machine room portion of the refrigeration mechanism unit and an exhaust port for sending exhaust heat air from the inside of the machine chamber unit to the outside. In the refrigeration apparatus provided with exhaust guide means that faces the front surface of the exhaust port and guides the flow of exhaust hot air blown from the exhaust port in a direction away from the intake port, the refrigeration apparatus includes a plurality of refrigeration mechanism units. The exhaust guide means is formed by stacking the inner guide means corresponding to the exhaust ports of at least one of the plurality of refrigeration mechanism sections, and the outside of the inner guide means is the other. outer guide constituted by a means, exhaust hot air and are each independently a guide is guided by the exhaust hot air and the outer guiding means guided by said inner guide means provided so as to cover at intervals together with the exhaust port of the Refrigerating apparatus characterized by that. 2. The refrigeration apparatus according to claim 1, wherein the inner guide means is provided corresponding to each exhaust port of each refrigeration mechanism section, and the outer side of all of the inner guide means is covered with the outer guide means .   The refrigeration apparatus according to claim 1 or 2, wherein the refrigeration apparatus is an ice making machine.

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