JP5921924B2 - Ice machine - Google Patents

Description

  The present invention relates to an ice making machine provided with an electrical box inside a machine room.

  An automatic ice maker that continuously manufactures a large amount of ice blocks is suitably used in facilities such as coffee shops and restaurants and other kitchens. Inside the ice making machine, an ice making chamber in which an ice making mechanism for producing ice blocks is stored and arranged, and a refrigeration mechanism including a compressor, a condenser and the like, and a machine room in which an electrical box is placed are defined. An ice making machine in which the electrical box is accommodated in a machine room is disclosed in Patent Document 1.

  On the bottom plate 24 of the machine room 14 in the automatic ice maker 60 shown in FIGS. 7 and 8, various devices constituting the refrigeration mechanism 28, control elements such as relays and sequencers for giving electrical commands to the motor of the ice maker, etc. An electrical box CB is installed. In FIG. 8, devices other than the condenser CD, the cooling fan motor FM, and the electrical box CB are omitted. An intake port 30 is provided in the front panel 22a and the right side panel 22c surrounding the machine room 14, and an exhaust port (not shown) is provided in the rear panel 22b. The air taken into the machine chamber 14 from the front and right intake ports 30 by the cooling fan motor FM is exhausted to the rear side through the exhaust port after heat exchange with the condenser CD and the like (FIG. 8). (See arrow). The electrical box CB is provided at a position where it does not overlap with the air inlet 30 so as not to prevent the air taken in from the air inlet 30 from cooling the condenser CD.

JP 2009-24897 A

  The electrical box CB needs to be cooled because the control element housed therein generates heat. However, as shown in FIG. 8, since the electrical box CB is provided at a position deviating from the flow path of the air taken in from the intake port 30, positive cooling of the electrical box CB by the air cannot be expected. Therefore, in order to lower the temperature of the electrical box CB, a configuration in which ambient air is taken into the electrical box CB by providing punching holes in the electrical box CB or by using a part of the mesh as a mesh member has been conventionally employed. Yes. However, with this configuration, there is a possibility that dust and dust will enter the electrical box CB over time, thereby preventing heat dissipation and shortening the life of the control element. In addition, it is pointed out that there is a drawback in that the cost of processing the casing of the electrical box CB is high.

  Further, in the configuration in which the electrical box CB is installed on the bottom plate 24 of the machine room 14, it is difficult to cool the bottom of the electrical box CB by the air taken in from the intake port 30. In addition, when the electrical box CB is arranged in the flow path of the air taken into the machine room from the intake port in order to actively cool the electrical box, the flow of air that cools the condenser due to the presence of the electrical box Will be hindered. Furthermore, when installing the electrical equipment box using a mounting member such as a bracket, it is necessary to secure the installation space for the mounting member in the machine room as well as the cost of the parts, and thereby the air flow for cooling the condenser There is also a concern that will be hindered.

  Therefore, in view of the problems inherent in the prior art, the present invention has been proposed to suitably solve these problems, and an object of the present invention is to efficiently cool an electrical box.

In order to overcome the above-mentioned problems and achieve the intended purpose, an ice making machine according to claim 1 of the present application includes:
A machine room with a compressor, a condenser, a cooling fan motor, and an electrical box is defined inside the ice making machine body that is a box made by mounting each panel on a rectangular solid frame. In an ice making machine that cools the condenser by taking outside air into the machine room from the air inlet opened in the panel by operating,
The electric box is in the upper of the machine chamber, the intake port is laterally bridged in the space frame to the rear side along Migihitsuji the panel provided Rutotomoni, the lower portion of the electric Sobako is opposed to the air inlet and Nde extraordinary Te,
The gist is that the opening that opens to the upper surface of the electrical box is configured to be tightly covered by a top panel disposed on the upper surface of the ice making machine body .
According to the invention of claim 1, together with the face and bottom of the electrical equipment box is opposed to the intake port, the electrical component box is laterally placed on the frame, below the electrical component box is taken in the machine room from the intake port Facing the air distribution channel. That is, the bottom part of the electrical box can be cooled by the air taken in from the intake port. In addition, since the electrical box is mounted between the frames along the back side of the panel where the air inlet is opened, it is easy to secure the surface area of the bottom of the electrical box where the air taken in from the air inlet contacts and the efficiency of the electrical box Cooling is achieved. As described above, the electrical equipment box can be efficiently cooled by the air taken in from the intake port, so that it is not necessary to perform drilling or the like for taking the ambient air into the electrical equipment box. For this reason, the manufacturing cost can be suppressed, and dust and dust do not enter the electrical box. Furthermore, since the flow path of the air taken in from the intake port is secured below the electrical box, the flow of air that cools the condenser is not easily obstructed by the electrical box. Further, since the electrical box is installed on the existing frame, there is no need for a mounting member for mounting the electrical box, and the flow of air in the machine room is not hindered by the mounting member.
Furthermore, since the opening of the electrical box is tightly covered with a top panel disposed on the top surface of the ice making machine body, the heat in the electrical box is exchanged with the outside air via the top panel, and the electrical box can be efficiently cooled.

  The ice maker according to the present invention can achieve efficient cooling of the electrical box.

It is a front view of the ice making machine which concerns on an Example, Comprising: The electrical equipment box is shown with the broken line. It is a disassembled perspective view which shows the whole structure of the ice making machine which concerns on an Example. It is a perspective view which shows the state which removed each panel and the electrical equipment box from the ice making machine which concerns on an Example. It is XX sectional drawing of FIG. 1, Comprising: The flow which the air which flowed in into the machine room from the outside flows out outside is shown. It is a perspective view of the electrical equipment box used for the ice making machine which concerns on an Example. It is a top view of the electrical equipment box shown in FIG. It is a front view of the ice making machine which provided the electrical equipment box concerning a conventional example, Comprising: The electrical equipment box is shown with the dashed line. It is the YY sectional view taken on the line of FIG. 7, Comprising: The flow which the air which flowed in into the machine room from the outside flows out outside is shown.

  Next, a preferred embodiment of the ice making machine according to the present invention will be described below with reference to the accompanying drawings. In the following description, “front”, “rear”, “left”, “right”, “upper”, and “lower” are designated on the basis of the case where the ice making machine is viewed from the front front panel side. . In addition, about the same member as a prior art, it shall show with the same code | symbol.

  As shown in FIGS. 1 and 2, the ice making machine 10 according to the embodiment includes an ice making mechanism 26 and a refrigeration mechanism 28, and is disposed above an ice storage (not shown) for storing ice from the ice making mechanism 26. It is a stack-on type. The ice making machine 10 has an ice making machine body in which a rectangular panel 22 is assembled to a front and rear, a left and right, and an upper surface of a rectangular solid frame 16 forming an exoskeleton to form a casing. An ice making chamber 12 in which an ice making mechanism 26 is disposed is located below the inside of the ice making machine body, and a machine chamber 14 in which a refrigeration mechanism 28 and an electrical box CB are disposed above the ice making chamber 12. positioned. The ice making chamber 12 is in spatial communication with the ice storage (not shown), and the ice dropped from the ice making mechanism 26 by the deicing operation is released and stored in an ice storage chamber provided in the ice storage.

  As shown in FIG. 2, the machine room 14 is defined by a front panel 22a, left and right side panels 22c, 22c, a rear panel 22b, a top panel 22d, and a bottom plate 24. The top panel 22d is formed by bending a metal rectangular thin plate in four directions to form a shallow lid, and the machine room 14 surrounded by the front panel 22a, the left and right side panels 22c and 22c, and the rear panel 22b. It covers from above. Thereby, the top panel 22d constitutes the top surface of the ice making machine main body. In the machine room 14, a refrigeration mechanism 28 including a condenser CD, a cooling fan motor FM, and a compressor CM, and an electrical box CB having a structure to be described later are sequentially arranged from the rear side. As shown in FIG. 3, the condenser CD is set to a size that fits into the rearmost space in the machine room 14. That is, the condenser CD is formed in a horizontally long shape substantially the same as the ice making machine 10. A cooling fan motor FM whose outer periphery is surrounded by a fan cover 36 is disposed on the front side of the condenser CD, and a propeller fan 38 is disposed on the cooling fan motor FM. In the embodiment, two cooling fan motors FM and FM are attached in parallel in the left-right direction. The compressor CM, the condenser CD, and the cooling fan motor FM of the condenser CD are disposed on the bottom plate 24 of the machine chamber 14, and the refrigeration mechanism 28 circulates and supplies the refrigerant to the ice making mechanism 26 during the ice making operation. .

  As shown in FIGS. 1 and 2, the front panel 22a is provided with a rectangular intake port 30 that allows the inside of the machine room 14 to communicate with the outside. The intake port 30 faces the machine room 14 located behind the front panel 22a, and a louver 32 is provided at the intake port 30. As shown in FIG. 2, the rear panel 22b facing the front panel 22a is provided with a plurality of exhaust ports 34 for communicating the machine room 14 with the outside. When the refrigeration mechanism 28 is operated, the outside air is taken into the machine room 14 from the intake port 30 of the front panel 22a by the rotation of the cooling fan motor FM. The taken-in external air cools various devices in the machine room 14 including the condenser CD, and the air whose temperature has increased by exchanging heat with these devices passes through the exhaust port 34 of the rear panel 22b. Is discharged. Thus, in the embodiment, the external air is taken into the machine room 14 from the front side of the ice making machine 10 and discharged to the rear side.

  As shown in FIGS. 2 and 4, an electrical box CB that electrically controls various devices of the refrigeration mechanism 28 and the ice making mechanism 26 is provided above the front portion of the machine room 14. In FIG. 4, only the condenser CD, the cooling fan motor FM, and the electrical box CB are shown, and other devices are omitted. As shown in FIG. 2, the electrical box CB is installed across the left frame 18 and the right frame 20 provided with the side panels 22c and 22c. That is, as shown in FIGS. 4 to 6, the electrical box CB includes a rectangular bottom plate 40, a pair of left and right side plates 42 and 42 erected from the left and right edges of the bottom plate 40, and a front edge of the bottom plate 40. The front plate 44 is erected and the rear plate 46 is erected from the rear edge of the bottom plate 40, and is a horizontally long box that opens upward. As shown in FIG. 1, the electrical box CB is provided at a position corresponding to the inlet 30 of the front panel 22 a when viewed from the front, and the lower end of the electrical box CB faces the upper part of the inlet 30. doing. In the embodiment, the upper end portion of the air inlet 30 is opposed to the vicinity of the intermediate portion in the vertical direction of the electrical box CB, and the lower end portion of the electrical box CB is opposed to the vicinity near the upper portion of the intermediate portion of the air inlet 30 in the vertical direction. ing. As shown in FIGS. 2 and 4, the electrical box CB of the embodiment is disposed on the back side of the front panel 22 a and along the front panel 22 a in the machine room 14, and is about one third of the upper portion of the air inlet 30. Is covered by the electrical box CB. On the bottom plate 40 of the electrical box CB, as shown in FIG. 6, electrical components such as a control board 50, a transformer 52, a relay 54, and a capacitor 56 are placed.

  In the frame 16 serving as the skeleton of the ice making machine 10, as shown in FIG. 3, there is no frame above the front part sandwiched between the left frame 18 and the right frame 20, and the electrical box CB is located in this space. Is attached to fit. As shown in FIG. 2, the electrical box CB is set to have dimensions such that the left and right side plates 42 and 42 abut against the upper left frame 18a and the upper right frame 20a, respectively. Also, the left and right overhanging portions 44a, 44a formed on the front plate 44 of the electrical box CB are brought into contact with the front left frame 18b and the front right frame 20b from the front side and screwed, so that the electrical box CB Is fixed to the frame 16. The electrical box CB disposed above the machine room 14 is configured such that the opening edge of the opening 48 opened upward is aligned with the upper end of the frame 16. Therefore, as shown in FIG. 4, when the upper surface of the machine room 14 is covered with the top panel 22d, the opening 48 of the electrical box CB is tightly covered with the top panel 22d. That is, the top panel 22d also serves as a lid that closes the opening 48 of the electrical box CB, and the interior of the electrical box CB is thereby sealed.

  Next, the operation and effect of the ice making machine according to the embodiment will be described. When the refrigeration mechanism 28 is operated, the outside air is taken into the machine room 14 from the intake port 30 of the front panel 22a by the rotation of the cooling fan motor FM as described above. At this time, as shown in FIG. 4, the front plate 44 of the electrical box CB faces the air inlet 30, and the lower part of the electrical box CB faces the flow path of the outside air taken in from the air inlet 30. The electrical box CB is cooled by the flow of the external air. In the embodiment, since the horizontally long electrical box CB is horizontally mounted on the left frame 18 and the right frame 20, the bottom surface of the electrical box CB can secure a large surface area in contact with the inflowing outside air, and the electrical box CB can be more efficient. Cooling is achieved. That is, in the electrical box CB of the embodiment, heat generated in various electrical components is transmitted to the bottom plate 40, but the bottom of the bottom plate 40 is sufficiently cooled by the outside air flowing through the machine room 14. And the external air which passed the downward direction of the electrical equipment box CB cools various apparatuses in the machine room 14 including the condenser CD. At this time, since the electrical box CB is horizontally mounted on the upper part of the left frame 18 and the upper part of the right frame 20, an air flow path is secured below the electrical box CB and air for cooling the condenser CD and the like is cooled. Is not obstructed by the electrical box CB. Further, since the electrical box CB is installed above the front part of the left frame 18 and above the front part of the right frame 20, the rigidity of the ice making machine body is secured by the electrical box CB and is sandwiched between the left frame 18 and the right frame 20. The frame above the front can be omitted. That is, in the ice making machine 10 of the embodiment, an air circulation path is secured below the electrical box CB, and the number of parts can be further reduced. Then, the air whose temperature has increased by exchanging heat with the condenser CD or the like is discharged from the exhaust port 34 of the rear panel 22b to the outside of the apparatus.

  As shown in FIG. 4, the ice making machine 10 according to the embodiment covers the upper opening 48 of the electrical box CB with the top panel 22d, so that the interior of the electrical box CB is a closed space. For this reason, the air whose temperature has risen due to the heat generated by the various electrical components housed in the electrical box CB stays in the upper part, but the top panel 22d is in contact with the outside air, so heat exchange with the outside air is performed here. That is, since the electrical box CB exchanges heat with the outside air through the top panel 22d that covers the opening 48 closely, the electrical box CB can be cooled more effectively. Further, in the electrical box CB according to the embodiment, since the top panel 22d also serves as an upper lid of the electrical box CB, the number of parts can be reduced and the manufacturing cost can be reduced.

  As described above, the electrical box CB according to the embodiment achieves efficient cooling without using a housing structure having air holes as in the conventional case. In addition, since it is not necessary to provide air holes for heat dissipation in the electrical box CB, dust and dust do not enter the electrical box CB, and an abnormal temperature rise due to poor heat dissipation of electrical components due to dust accumulation, and accompanying this It is difficult to cause a failure due to a short circuit. Further, since the ice making machine 10 is configured to attach the electrical box CB to the existing frame 16, the manufacturing cost can be suppressed, and it is not necessary to secure an extra space in the machine room 14. Further, in the ice making machine 10 of the embodiment, since the cooling of the electrical equipment box CB and the condenser CD is effectively achieved, the effect of extending the life of these devices can be expected.

  Here, in the conventional condenser, the surface facing the propeller fan is formed in a substantially square shape according to the shape of the propeller fan so as to be efficiently cooled by receiving the wind from the propeller fan of the cooling fan motor. . For this reason, the condenser needs to have a certain height in addition to the width in order to ensure the condensing capacity. In the embodiment, the condenser CD is formed in a horizontally long shape having the same width as that of the ice making machine 10, and the two cooling fan motors FM and FM arranged in parallel are provided. Can reduce the height of the condenser CD. That is, the overall height of the machine room 14 where the condenser CD is provided and the ice making machine 10 can be reduced. Further, since the two cooling fan motors FM and FM are attached, even if one of the cooling fan motors FM fails, the condenser CD can be cooled and the operation of the ice making machine 10 can be continued.

  In the ice making machine 10 according to the embodiment, the condenser CD is disposed on the back surface of the machine room 14, and therefore, when the front panel 22a is removed and the machine room 14 is inspected and maintained from the front, the condenser CD is operated. Work efficiency is improved without getting in the way. Further, since the condenser CD is arranged at the rearmost part of the machine room 14, the cooling of the condenser CD can be efficiently achieved as compared with the case where the condenser CD is arranged at the central part of the machine room 14. Further, in the ice making machine 10 of the embodiment, since the cooling of the electrical box CB and the condenser CD is effectively achieved as described above, the outside air taken in from the intake port 30 by forming an exhaust port in the top panel 22d. Need not be discharged from above the machine room 14.

(Change example)
The present invention is not limited to the above-described embodiments, and can be modified as follows.
(1) In the embodiment, the ice making machine in which the machine room is arranged above the ice making room has been described as an example. However, the structure in which the machine room and the ice making room are arranged in parallel, or the machine in the lower part of the ice making room An ice making machine having a configuration in which a chamber is arranged may be used. Further, the ice making machine may have an ice storage chamber disposed therein.
(2) In the embodiment, the front panel is provided with an air inlet, and the electrical box is installed between the frames across the left and right sides of the machine room. However, the side panel is provided with an air inlet and the electrical box. May be configured so as to be horizontally mounted between the frames across the front and rear of the machine room.
(3) In the embodiment, a configuration is adopted in which the electrical box is screwed to the front left frame and the front right frame. However, the electrical box only needs to be horizontally mounted between the frames, for example, the upper left frame and the upper frame. You may make it fix to a right side frame with welding or an adhesive agent.
(4) In the example, an ice maker equipped with a horizontally long condenser and two cooling fan motors was adopted. However, the cooling fan motor was operated to cool the condenser by taking outside air from the intake port into the machine room. If it is an ice making machine, the shape of the condenser and the number of cooling fan motors attached are not limited.
(5) In the embodiment, the ice making machine having the configuration in which the rear surface of the machine room is covered with the rear panel has been described as an example. However, as in the embodiment, the condenser is arranged so as to be fitted in the rearmost space in the machine room. In this case, the rear panel surrounding the machine room may be omitted.

14 machine room, 16 frames, 22 panels, 22d top panel, 30 air inlets,
48 opening, CB electrical box, CD condenser, CM compressor, FM cooling fan motor

Claims (1)

A compressor (CM), a condenser (CD), a cooling fan motor (FM), and an electrical box are installed inside the ice making machine body, which is made by mounting each panel (22) on a rectangular solid frame (16). A machine room (14) provided with (CB) is defined, and the cooling fan motor (FM) is operated to open the outside air from the intake port (30) opened in the panel (22) to the machine room (14). In an ice making machine that cools the condenser (CD),
The electrical component box (CB) is above the said machine room (14), wherein the horizontal bridging the space frame (16) to along Migihitsuji the rear side of the panel in which the inlet (30) is provided (22) Rutotomoni, the lower part of the electric Sobako (CB) and Nde extraordinary opposite the inlet (30),
The opening (48) opened to the upper surface of the electrical box (CB) is configured to be tightly covered by a top panel (22d) disposed on the upper surface of the ice making machine main body. Ice machine.

Images