JP2007187434A - Condensing unit and cooling apparatus equipped with condensing unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a condensing unit downsized and reduced in cost by reducing the number of structural parts. <P>SOLUTION: The condensing unit comprises a heat exchanger 100 with end plates 110, and a compressor 400. The heat exchanger 100 is disposed below the compressor 400 so that the end plates take the load of the compressor 400. A compressor fixing base plate is thereby eliminated to reduce the number of structural parts. Consequently, the condensing unit can be further downsized, and cost reduction can be achieved. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a condensing unit that is used in a cooling device such as an ice maker, a beverage drink dispenser, and a showcase and unitizes the functions of a compressor and a heat exchanger in a refrigeration system.

  Conventionally, as this type of condensing knit, there has been one that has been made compact as described in Patent Document 1, for example. FIG. 14 shows a conventional condensing unit described in Patent Document 1. In FIG.

  In particular, ice-making machines, beverage drink dispensers, and cooling equipment such as showcases increase the amount of ice stored by expanding the ice making unit, or increase the amount of stored beverage drinks by expanding the beverage drink storage unit. In order to reduce this, it is desired to reduce the machine room space. Therefore, downsizing in the vertical direction is also required for the condensing unit.

  In FIG. 14, the heat exchanger 1, the fan 2, and the compressor 3 are arranged in this order from the bottom, and the compressor 3 is arranged in series vertically so that the compressor 3 is at the top, thereby achieving compactness. The heat exchanger 1 is provided with a bracket 4 for attaching a fan 2 and forming an air passage for air sucked by the fan 2.

The compressor 3 is attached to a compressor fixing base plate 5, and the compressor fixing base plate 5 is attached to a machine room bottom plate of a cooling device.
Japanese Patent No. 3667538

However, in the above conventional configuration, the heat exchanger 1, the fan 2, and the compressor 3 can be arranged in series vertically to make the condensing unit compact.
(1) Since the heat exchanger 1, the fan 2 and the compressor 3 are arranged vertically in series, a sufficient space is required in the height direction. For example, the effective space of the cooling space such as a cooling device in which the condensing unit is installed is Not enough.
(2) Since the number of structural parts such as the compressor fixing base plate 5 to which the compressor 3 is attached in addition to the bracket 4 to which the fan 2 is attached, the cost is increased.
(3) Since the fan 2 is arranged facing the heat exchanger 1 on a plane having a wide width and depth, the small fan 2 is close to the heat exchanger 1 and can exchange heat. The area becomes narrow, and a sufficient amount of heat exchange using the entire heat exchanger 1 cannot be expected, so that it is difficult to increase the heat exchange efficiency.
(4) Since the fan 2 is arranged so as to be cooled from the bottom surface of the compressor 3, the cooling to the upper part of the compressor 3 where the temperature is likely to increase due to the heat generated by the internal mechanism cannot be secured sufficiently. 3 is difficult to improve the coefficient of performance and reliability.
(5) Since the fan 2 is sandwiched between the heat exchanger 1 and the compressor 3 that are high in temperature, the fan 2 is also placed in a high-temperature environment, and the reliability of the driving motor, etc. It is difficult to ensure efficiency. Moreover, since it is installed in a narrow space, the serviceability of the fan 2 is poor.
There were problems to solve these problems.

  The present invention solves the above-described conventional problems, and achieves cost reduction by reducing the number of structural parts while achieving compactness as a condensing unit. In addition, depending on the configuration, the structural parts are included. It is an object of the present invention to provide various products such as a condensing unit that can achieve high efficiency and high reliability, and a cooling device including the condensing unit.

  In order to solve the above-described conventional problems, a condensing unit of the present invention includes a heat exchanger including a plurality of fins, a pipe in thermal contact with the fins, and end plates positioned at both ends of the fins. And a compressor, and the heat exchanger is disposed below the compressor so as to receive the load of the compressor by the end plate.

  As a result, the compressor and the heat exchanger can be unitized without the base plate for fixing the compressor, and a more compact condensing unit can be realized. Further, the compressor fixing base plate is not required, the number of structural parts can be reduced, and the cost can be reduced. Furthermore, it can be used as a base for achieving high efficiency and high reliability including components such as a heat exchanger and a compressor by the added configuration.

  The condensing unit of the present invention can realize a more compact condensing unit at low cost. Moreover, it can be used as a base for achieving high efficiency and high reliability including components such as a heat exchanger and a compressor by the added configuration.

  The invention of the condensing unit according to claim 1 comprises a heat exchanger comprising a plurality of fins, a pipe in thermal contact with the fins, end plates positioned at both ends of the fins, and a compressor. By arranging the heat exchanger at the lower part of the compressor so that the load of the compressor is received by the end plate, the compressor and the heat exchanger can be unitized without a base plate for fixing the compressor. A condensing unit can be realized. Further, the compressor fixing base plate is not required, the number of structural parts can be reduced, and the cost can be reduced.

  According to a second aspect of the present invention, there is provided a condensing unit according to the first aspect of the present invention, wherein a bending portion for receiving the load of the compressor is provided on the upper portion of the end plate, thereby directly or indirectly connecting the compressor. A flat surface for mounting can be easily formed, and the load of the compressor can be stably received with a simple configuration.

  According to a third aspect of the present invention, there is provided a condensing unit according to the first or second aspect of the present invention. A flat portion for attaching to the product main body can be easily formed, and assembly workability can be improved by using the bent portion for fixing the installation.

  The invention of the condensing unit according to claim 4 is the invention according to any one of claims 1 to 3, wherein the reinforcing plate is provided with a reinforcing plate for connecting the end plates to each other. It becomes reinforcement which connects between each other, and can improve the structural strength of the heat exchanger which mounts a compressor, and can aim at reduction of vibration propagation.

  According to a fifth aspect of the present invention, there is provided a condensing unit according to the fourth aspect, wherein a duct that flows through the heat exchanger is formed in a space surrounded by the end plate and the reinforcing plate. Air effectively flows to the exchanger, heat exchange efficiency is improved, and high performance of the condensing unit can be achieved. In addition, since a separate member for forming the duct is not required, it is economical, and it is not necessary to add a space by providing the duct, and a more compact condensing unit can be realized.

  The invention of the condensing unit according to claim 6 is the invention according to claim 4 or 5, wherein the compressor is placed on the end plate via the reinforcing plate, so that Even if the compressor cannot be placed directly on the end plate, such as when the pitch between the end plates is wide or the bending margin at the top of the end plate is short, the compressor can be placed arbitrarily on the reinforcing plate. Design freedom can be increased.

  According to a seventh aspect of the present invention, there is provided the condensing unit according to the sixth aspect, wherein the compressor is fixed on the end plate by sandwiching the reinforcing plate, thereby fixing the reinforcing plate to the end plate. The fixing member of the compressor can be fastened together without the fixing screw, and the screw for fixing the reinforcing plate is not necessary, so that the cost can be reduced.

  The invention of the condensing unit according to claim 8 is the invention according to any one of claims 1 to 7, wherein the fins of the heat exchanger are arranged to be inclined in the vertical direction with respect to the end plate. This improves the heat exchange distribution in the heat exchanger, allows air to flow almost uniformly throughout the fins, improves the heat exchange efficiency of the heat exchanger, and improves the performance of the condensing unit. .

  The invention of the condensing unit according to claim 9 is the invention according to any one of claims 1 to 8, wherein the stress in the end plate is a slot because the hole into which the pipe is inserted is a long hole. Since the concentrated contact portion between the end plate and the pipe is reduced, the stress concentration area is reduced, and the leakage failure due to the vibration propagation of the compressor can be reduced.

  The invention of the condensing unit according to claim 10 is the invention according to any one of claims 1 to 9, wherein the end plate is provided with a burring in the hole into which the pipe of the end plate is inserted. Since the pipe and the pipe are in surface contact, stress concentration can be prevented, and leakage failure due to vibration propagation of the compressor can be reduced.

  An invention of a condensing unit according to an eleventh aspect is the invention according to any one of the first to tenth aspects, wherein between the bent portion of the end plate that receives the load of the compressor and the insertion portion of the pipe. Since the vibration damping section is provided in the compressor, the vibration of the compressor is attenuated by the vibration damping section, so that stress concentration at the contact portion between the end plate and the pipe can be prevented, and leakage failure due to the vibration propagation of the compressor can be reduced. Can do.

  According to a twelfth aspect of the present invention, there is provided a condensing unit according to the eleventh aspect of the present invention, wherein the vibration attenuating portion comprises a hole, and the compressor vibration is attenuated by the hole. Stress concentration at the contact area can be prevented, leakage failure due to the vibration propagation of the compressor can be reduced, and by making holes, holes for pipe penetration holes, etc. in end plate pressing Since the hole can be machined in the same process as the machining, the vibration damping hole can be formed easily and without cost.

  According to a thirteenth aspect of the present invention, there is provided a condensing unit according to the thirteenth aspect of the present invention, wherein the vibration damping portion comprises an overmolded portion, so that the vibration of the compressor is attenuated by the overmolded portion. Stress concentration at the contact area can be prevented, leakage failure due to the vibration propagation of the compressor can be reduced, and by making the overmolded part, it can be easily processed in end plate pressing, Furthermore, since no sagging or burrs are generated, safety can be ensured without causing injury in the processing section.

  The invention of a condensing unit according to claim 14 is the heat exchanger according to any one of claims 1 to 13, wherein a fan for convection of air through at least the inside of the heat exchanger is attached. Thus, the air can be forced to convection, and the heat exchange efficiency can be greatly improved, thereby further improving the performance of the condensing unit.

  The condensing unit invention according to claim 15 is the invention according to claim 14, wherein the fan is attached so that air convected by the fan is also convected to the compressor. The compressor can also be forced to convection, and the cooling of the compressor is promoted to increase the coefficient of performance. In addition, the temperature environment of the internal mechanism such as the compression mechanism and electric motor is improved, and the performance of the condensing unit is further improved. It is possible to save energy and improve reliability.

  The invention of the condensing unit according to claim 16 is the invention according to claim 14 or 15, wherein the fan can be compactly integrated with the condensing unit by attaching the fan to the reinforcing plate. In addition, forced convection air generated by a fan can be allowed to act on the heat exchanger or the compressor in close proximity, improving the cooling efficiency and improving the performance of the condensing unit.

  The invention of the condensing unit according to claim 17 is the invention according to claim 16, wherein a plurality of the fans are attached so that a fan with a small outer shape having a performance equivalent to that of one fan with a large outer shape is obtained. Since a plurality of them can be used and space can be used effectively, further downsizing can be achieved.

  The invention of the condensing unit according to claim 18 is the projection of the fan according to claim 16 or 17, wherein the fan is mounted vertically or obliquely compared to a case where the fan is mounted horizontally. The area becomes smaller. In other words, the fan installation space is reduced in the longitudinal direction, and further downsizing can be achieved. In addition, the direction change when forced convection air that has passed through the heat exchanger is vented to the compressor can be made with relatively little resistance, increasing the cooling efficiency when the condensing unit is incorporated into a product such as a cooling device. be able to.

  The invention of the cooling device according to claim 19 includes the condensing unit according to any one of claims 1 to 18, whereby the space of the machine room in which the condensing unit is installed can be made compact. Therefore, for example, the storage space for the object to be cooled in the cooling device can be expanded, the volumetric efficiency with respect to the installation space can be improved, and the commercial value can be increased.

  The invention of the cooling device according to claim 20 comprises the condensing unit according to any one of claims 1 to 13 and a separate fan for cooling the condensing unit. Since the space of the machine room to be installed can be made compact, for example, the storage space for the object to be cooled of the cooling device can be expanded, the volumetric efficiency with respect to the installation space can be improved, and the commercial value can be increased. In addition, since a forced cooling fan is separately provided in the main body of the cooling device, the design of the air passage configuration for cooling the condensing unit can be given flexibility and optimization as a product can be achieved.

  The invention of the cooling device according to claim 21 is the air passage according to claim 19 or 20, wherein the compressor is cooled by the intake air flowing through the heat exchanger and discharged to the back side of the cooling device. Since the air flow discharged from the heat exchanger is reused and applied to the compressor, the high-temperature compressor can be cooled, and the reliability of the compressor can be improved. Further, since the exhaust heat is discharged to the back side of the cooling device, it is discharged to the user side on the front side of the cooling device and does not give unpleasant feeling.

  The invention of the cooling device according to claim 22 is the invention according to claim 19 or 20, wherein the compressor is cooled by the intake air flowing through the heat exchanger and discharged to the upper part on the back side of the cooling device. By having the passage, the air flow discharged from the heat exchanger is reused and applied to the compressor, so that the high-temperature compressor can be cooled and the reliability of the compressor can be improved. In addition, exhaust heat is discharged to the upper part of the back side of the cooling device, so the back of the cooling device can be installed close to the wall surface of the installation location, increasing the degree of freedom of installation of the cooling device and making the installation space compact. Can do.

  The invention of the cooling device according to claim 23 is the invention according to claim 21 or 22, wherein the cooling device passes through the heat exchanger by arranging the condensing unit so that the fan is on the front side of the cooling device. The air flow configuration applied to the compressor can be easily formed by reusing the air flow, the cooling efficiency by forced convection as a product can be improved, and the air flow configuration can be easily discharged to the back side.

  The invention of the cooling device according to claim 24 is the invention according to claim 21 or 22, wherein the condensing unit is arranged so that the fan is located on the back side of the cooling device. Service replacement and repair work can be facilitated, improving serviceability.

  According to a twenty-fifth aspect of the present invention, in the invention according to any one of the nineteenth to twenty-third aspects, the electrical component of the compressor is provided on the rear side of the cooling device by providing the electrical component of the compressor from the rear side. Since service exchange and repair work can be facilitated, serviceability can be improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The same components as those in the conventional example or the embodiment described above are denoted by the same reference numerals, and detailed description thereof is omitted. The present invention is not limited to the embodiments.

(Embodiment 1)
1 is a side view of a condensing unit according to Embodiment 1 of the present invention, FIG. 2 is a plan view of the condensing unit according to the same embodiment, and FIG. 3 is a side sectional view of the condensing unit according to the same embodiment. FIG. 4 is a perspective view of a reinforcing plate of the condensing unit in the embodiment, and FIG. 5 is a side sectional view of a beverage drink dispenser as a cooling device provided with the condensing unit of the embodiment. .

  1 to 5, the heat exchanger 100 includes a plurality of fins 120, pipes 130 inserted substantially at right angles to the fins 120, and end plates 110 positioned at both ends of the fins 120. The materials of the fin 120, the pipe 130, and the end plate 110 are aluminum, copper, and a zinc iron plate, respectively.

  The end plate 110 includes a base portion 110C that is suspended and two flanges that protrude in the opposite horizontal directions from the base portion 110C, that is, an upper compressor installation bending portion 110A and a lower condensing unit installation fixing bending portion 110B. The base part 110C, the compressor installation bending part 110A, and the condensing unit installation fixing bending part 110B are formed by sheet metal bending. The compressor installation bent portion 110 </ b> A is formed in the inner direction of the fin 120, and the condensing unit installation fixing bent portion 110 </ b> B is formed in the direction opposite to the inner direction of the fin 120.

  Further, the fins 120 of the heat exchanger 100 are arranged with the fins 120 inclined in the vertical direction so that the fin end surface A121 on the side close to the fan 200 is lower than the fin end surface B122 on the side far from the fan 200. .

  The reinforcing plate 300 includes a top surface portion 300A, two side surface portions 300B parallel to the fins 120, and two side surface portions 300C perpendicular to the fins 120, and is formed by sheet metal bending. The side surface portion 300B protrudes downward from the periphery of the top surface portion 300A at a location where the fan 200 of the top surface portion 300A is disposed. One of the side surface portions 300C protrudes downward from the periphery of the top surface portion 300A opposite to the location where the fan 200 is disposed, and the other side surface portion 300C protrudes from the periphery.

  The top surface portion 300 </ b> A of the reinforcing plate 300 is attached to the compressor installation bent portion 110 </ b> A of the end plate 110 with a reinforcing plate fixing screw 700 so as to cover the upper surface of the heat exchanger 100.

  The fan 200 is attached to the top surface of the top surface portion 300A of the reinforcing plate 300, and the wind for forced convection is arranged in a form in which the heat exchanger 100 is disposed in a duct formed in a space surrounded by the end plate 110 and the reinforcing plate 300. Forming a road. Air is sucked in from the lower surface of the heat exchanger 100 or the side surface portion of the heat exchanger 100 opposite to the fan 200, and is discharged from the fan 200 through the reinforcing plate 300.

  The compressor 400 is attached to the upper surface of the top surface portion 300 </ b> A of the reinforcing plate 300 with a compressor fixing bolt 800.

  The condensing unit is installed in a machine room 905 of a beverage / drink dispenser 900 composed of an electrical equipment unit 901, a dispensing mechanism unit 902, a beverage / drink storage unit 903, a cooling unit 904, and a machine room 905. The condensing unit installation fixing bending portion 110B is attached to the bottom plate 906 of the beverage / drink dispenser 900, which is a cooling device.

  Further, the air sucked by the fan 200 from the lower surface of the heat exchanger 100 is applied to the compressor 400 and discharged from the upper part on the back side of the beverage drink dispenser 900.

  The operation and operation of the condensing unit configured as described above and the beverage drink dispenser as a cooling device will be described below.

  Since the compressor 400 is placed so that the load of the compressor 400 is applied to the end plate 110 via the reinforcing plate 300, a separate compressor fixing base as in the conventional example is not required, and compact condensing is performed. Units can be realized, the number of structural parts can be reduced, and costs can be reduced.

  Further, by providing the bent portion 110A that receives the load of the compressor 400 on the upper portion of the end plate 110, a flat surface portion for placing the compressor 400 indirectly can be easily formed, and the load of the compressor 400 is simply configured. Can be received stably.

  Further, by placing the compressor 400 on the end plate bending portion 110A via the reinforcing plate 300, when the pitch between the end plates 110 is wider than the mounting pitch of the compressor 400, or the bending margin of the bending portion 110A is increased. Even when the compressor cannot be placed directly on the end plate 110, such as when it is short, the compressor 400 can be arbitrarily placed on the reinforcing plate 300, and the degree of freedom in designing the installation of the compressor 400 can be increased.

  Further, since the condensing unit setting and fixing bent portion 110B formed easily by bending the lower portion of the end plate 110 is provided, the condensing unit setting and fixing bent portion is attached when the condensing unit is attached to the beverage drink dispenser 900. Since it can fix using, assembly workability | operativity can be improved.

  Furthermore, by providing the reinforcing plate 300 that connects the end plates 110, the reinforcing plate 300 serves as a reinforcement that connects the end plates 110, and the structural strength of the heat exchanger 110 on which the compressor 400 is placed can be increased. And reduction of vibration propagation and the like can be achieved.

  Further, the reinforcing plate 300 covers the upper surface of the heat exchanger 100 to form an air passage, that is, a duct that flows through the heat exchanger 100 in a space surrounded by the end plate 110 and the reinforcing plate 300 is formed. The air effectively flows to the heat exchanger 100, the heat exchange efficiency is improved, and the performance of the condensing unit can be improved. In addition, since a separate member for forming the duct is not required, it is economical, and it is not necessary to add a space by providing the duct, and a more compact condensing unit can be realized.

  Furthermore, since the fins 120 are disposed so as to be inclined in the vertical direction, the heat exchange distribution in the heat exchanger 100 is improved, and air flows substantially uniformly throughout the fins 120, thereby improving the heat exchange efficiency of the heat exchanger 100. Thus, the performance of the condensing unit can be improved.

  Furthermore, by installing the fan 200 for convection of air through at least the inside of the heat exchanger 110, the air can be forced to convection in the heat exchanger 100, the heat exchange efficiency is greatly improved, and the condensing unit is further improved. High performance can be achieved. Further, by attaching the fan 200 to the reinforcing plate 300, it is possible to form an air passage that can discharge the air sucked by the fan 200 in a more compact and efficient manner, improving the heat exchange efficiency and improving the performance of the condensing unit. Can be achieved.

  In addition, the condensing unit installed in the beverage / drink dispenser 900 can reduce the space of the machine room 905 to be installed, so that, for example, the storage space for the object to be cooled in the cooling device can be expanded, and the volumetric efficiency with respect to the installation space can be increased. Can improve product value. Moreover, if it is the dispenser 900 for drinks, the quantity of the drinks to store can be increased and the frequency | count of replenishment of drinks can be reduced.

  Furthermore, by installing the fan 200 so that the air convected by the fan 200 is also convected to the compressor 400, air can be forced to convection to the compressor 400 in addition to the heat exchanger 100, and the compressor 400 can be cooled. This increases the coefficient of performance and improves the temperature environment of the internal mechanism such as the compression mechanism and electric motor, further improving the performance and energy saving of the condensing unit, and improving the reliability.

  In addition, the air sucked from the lower surface of the heat exchanger 100 is used to cool the compressor 400 and to discharge the air to the back side of the beverage drink dispenser 900, thereby reusing the air discharged from the heat exchanger 100. Since the high-temperature compressor 400 can be cooled by being applied to the compressor 400, the reliability of the compressor 400 can be improved. Further, since the wind is discharged to the back side of the beverage / drink dispenser 900, it is not discharged to the user side on the front side of the beverage / drink dispenser 900 and uncomfortable.

  In addition, the fan 200 is arranged on the front side of the beverage drink dispenser 900, and the air sucked from the lower surface of the heat exchanger 100 is used to cool the compressor 400 and to blow the air path to the upper part on the back side of the beverage drink dispenser 900. If so, the high-temperature compressor 400 can be cooled by reusing the wind discharged from the heat exchanger 100 and applying it to the compressor 400, so that the reliability of the compressor 400 can be improved. In addition, since the wind is discharged to the upper part of the back side of the beverage drink dispenser 900, the back side of the beverage drink dispenser 900 can be installed close to the wall surface of the installation location, and the degree of freedom for installing the beverage drink dispenser 900 is increased and installed. Space can be made compact.

  It should be noted that the fan 200 is not integrated with the condensing unit, but is provided separately at an appropriate position of the main body of the beverage / drink dispenser 900, so that the design of the air passage configuration for cooling the condensing unit has a degree of freedom. Can be optimized as a product.

  Furthermore, by providing the electrical component 410 of the compressor 400 on the back side of the beverage drink dispenser 900, service replacement and repair work of the electrical component 410 of the compressor 400 can be facilitated by removing the rear panel 907. Can be increased.

  In the present embodiment, the condensing unit is configured with a filter dryer 600 having a function of adsorbing moisture harmful to the refrigeration system and removing dust. I do not care.

  In the present embodiment, the two flanges of the end plate 110, the compressor installation bent part 110A, and the condensing unit installation fixing bent part 110B are horizontally directed from the vertically suspended base part 110C, respectively in opposite directions. Although protruding, both the bent portion 110A for installing the compressor and the bent portion 110B for fixing and setting the condensing unit are formed in the direction opposite to the inner direction of the fin 120 (that is, the bent portion 110A for installing the compressor and the condensing unit). The installation fixing bending portion 110B may be formed in a substantially U-shape protruding vertically outward from the base portion 110C. In this case, since the compressor installation bent portion 110A is formed in a direction opposite to the internal direction of the fin 120, when the condensing unit is assembled, components such as the fan 200 are difficult to hit the pipe 130 from above. Can hardly be deformed, and deterioration of the product quality of the heat exchanger 100 can be prevented.

  Further, the end plate 110 includes a compressor installation bent portion 110A and a condensing unit installation fixing bent portion 110B, both of which are formed in a direction opposite to the internal direction of the fin 120, a compressor installation bent portion 110A, A combination of the condensing unit installation fixing bent portions 110B formed in opposite directions may be used.

  Further, although the compressor installation bending portion 110A and the condensing unit installation fixing bending portion 110B are formed by sheet metal bending, they may be separate parts.

  In the present embodiment, the reinforcing plate 300 includes the top surface portion 300A, two side surface portions 300B parallel to the fins 120, and two side surface portions 300C perpendicular to the fins 120. The base portion 110C of the end plate 110 is bent toward the inside of the fin 120 for the purpose of forming the air passage while preventing the formation of the bypass air passage that sucks the air exhaled by the 200 again. The side surface portion 300C may not be provided by forming a flange having a surface different from the portion 110A and the condensing unit installation fixing bending portion 110B.

  Further, the air passage may be formed by extending the base portion 110C of the end plate 110 to the position of the fan 200 without providing the side surface portion 300B of the reinforcing plate 300.

  In this embodiment, the reciprocating type compressor 400 is used as the compressor 400. However, by using the rotary type compressor 400, the size can be further reduced.

  In this embodiment, the fan 200 is installed and the cooling performance is improved by forced convection. However, if there is a margin of performance, the fan 200 is not installed and the fan 200 is used for natural convection. Noise can be eliminated and noise reduction can be achieved.

  Moreover, although it was set as the air path structure discharged from the back side upper surface of the dispenser 900 for drinks, it is good also as an air path structure discharged from the back surface of the dispenser 900 for drinks.

  Furthermore, in this Embodiment, the condensing unit was attached to the dispenser 900 for drinks, but you may attach to cooling devices, such as an ice machine, a showcase, and a refrigerator.

(Embodiment 2)
FIG. 6 shows a side cross-sectional view of the condensing unit in Embodiment 2 of the present invention.

  In FIG. 6, the heat exchanger 100 includes a plurality of fins 120, pipes 130 inserted substantially at right angles to the fins 120, and end plates 110 positioned at both ends of the fins 120.

  The end plate 110 includes a base part 110C, two flanges projecting vertically from the base part 110C, a bending part 110A for compressor installation, and a bending part 110B for fixing and fixing the condensing unit. The base part 110C, two flanges, and a compressor The installation bending portion 110A and the condensing unit installation fixing bending portion 110B are formed by sheet metal bending. The compressor installation bent portion 110 </ b> A is formed in the inner direction of the fin 120, and the condensing unit installation fixing bent portion 110 </ b> B is formed in the direction opposite to the inner direction of the fin 120.

  The reinforcing plate 300 includes a top surface portion 300A, two side surface portions 300B (not shown) parallel to the fins 120, and two side surface portions 300C (not shown) perpendicular to the fins 120. The surface portion 300A, the two side surface portions 300B, and the two side surface portions 300C are formed by sheet metal bending. The side surface portion 300B protrudes downward from the periphery of the top surface portion 300A at a location where the fan 200 of the top surface portion 300A is disposed. One of the side surface portions 300C protrudes downward from the periphery of the top surface portion 300A opposite to the location where the fan 200 is disposed, and the other side surface portion 300C protrudes from the periphery.

  The fan 200 (not shown) is attached to the upper surface of the top surface portion 300A of the reinforcing plate 300 and forms an air path together with the heat exchanger 100. Air is sucked in from the lower part of the heat exchanger 100 or the side surface of the heat exchanger 100 opposite to the fan 200, and is discharged from the fan 200 through the reinforcing plate 300.

  Further, the fin 120 of the heat exchanger 100 has a fin end surface A121 (not shown) on the side close to the fan 200 that is lower than a fin end surface B122 (not shown) on the side far from the fan 200. It is tilted and placed.

  The compressor 400 is attached to the compressor installation bent portion 110A of the end plate 110 of the heat exchanger 100 by a compressor fixing bolt 800 while sandwiching the top surface portion 300A of the reinforcing plate 300.

  The operation and operation of the condensing unit configured as described above will be described below.

  By fixing the compressor 400 on the end plate 110 with the reinforcing plate 300 sandwiched therebetween, the fixing plate 300 can be fastened together with the fixing member of the compressor 400 without the fixing screw 700 for fixing the reinforcing plate 300 to the end plate 110. Since the reinforcing plate fixing screw 700 is not required, the cost can be reduced.

(Embodiment 3)
FIG. 7 shows a plan view of a condensing unit according to Embodiment 3 of the present invention.

  In FIG. 7, two fans 200 are attached in parallel to the upper surface of the top surface portion 300 </ b> A of the reinforcing plate 300.

  The operation and operation of the condensing unit configured as described above will be described below.

  In order to ensure the air volume of the fan 200, the diameter of the fan 200 needs to be a predetermined size. However, if there is only one fan 200, the dimension in the longitudinal direction (X direction in FIG. 7) becomes large and invalid. Although a large space is generated, the space can be effectively used by using two small-sized external fans 200 in parallel with the performance equivalent to that of one large-sized fan 200. The unit can be made compact. For example, when one fan having a 120 mm square large outer shape is used, the condensing unit can be reduced by 60 mm by using two fans having a small 60 mm square outer shape.

  In the present embodiment, two fans 200 are arranged in parallel, but may be arranged in series.

  Further, in order to prevent the two fans 200 from resonating, the two fans 200 may be arranged slightly shifted, or the fans 200 having different rotational speeds and sizes may be used.

  Further, the number of fans 200 may be three or more.

  In the present embodiment, the fan 120 is a box type fan 200 in which a blade and a motor are integrated and housed in a housing. However, a sirocco type, a cross flow type, and a blade A motor with a separate motor may be used.

(Embodiment 4)
FIG. 8 shows a side view of the condensing unit in Embodiment 4 of the present invention.

  In FIG. 8, the fan 200 is vertically attached to the side surface of the reinforcing plate 300.

  The operation and operation of the condensing unit configured as described above will be described below.

  Since the fan 200 is arranged vertically, the projected area of the fan 200 is smaller than when the fan 200 is mounted horizontally. That is, the installation space of the fan 200 is reduced in the longitudinal direction, and further compactness can be achieved.

  In this embodiment, the fan 200 is arranged vertically, but it may be arranged obliquely, and is set to have an optimum angle according to the layout when the condensing unit is installed in the cooling device. do it.

  Moreover, since the direction change when forced convection air that has passed through the heat exchanger 100 is vented to the compressor 400 can be made with relatively little resistance, the cooling efficiency when the condensing unit is incorporated into a product such as a cooling device. Can be increased.

(Embodiment 5)
FIG. 9 is a side sectional view of a beverage / drink dispenser provided with a condensing unit according to Embodiment 5 of the present invention.

  In FIG. 9, the fan 200 is disposed on the back side of the beverage / drink dispenser 900.

  The operation and operation of the condensing unit configured as described above will be described below.

  By disposing the back panel 907 by disposing the fan 200 on the back side of the beverage / drink dispenser 900, service replacement and repair work of the fan 200 can be facilitated from the back side, so that serviceability can be improved.

(Embodiment 6)
FIG. 10: shows the principal part expansion perspective view of the heat exchanger in Embodiment 6 of this invention.

  In FIG. 10, an elongated hole portion 110C is disposed in the end plate 110 of the heat exchanger 100, and a pipe 130 is inserted into the elongated hole portion 110C.

  The operation and operation of the condensing unit configured as described above will be described below.

  By inserting the pipe 130 into the elongated hole portion 110C of the end plate 110, the contact area between the pipe 130 and the end plate 110 becomes smaller than when the pipe 130 is inserted into the circular hole. This reduces the area of the contact portion between the pipe 130 and the end plate 110 where the stress generated by the vibration of the compressor 400 is concentrated and easily leaks, thereby reducing the leakage failure due to the vibration propagation of the compressor 400. it can.

(Embodiment 7)
FIG. 11: shows the principal part cross-section enlarged view of the contact part of the end plate and pipe of the heat exchanger in Embodiment 7 of this invention.

  In FIG. 11, a burring 110 </ b> D is disposed on the end plate 110 of the heat exchanger 100, and a pipe 130 is inserted into the burring 110.

  About the condensing unit comprised as mentioned above, the effect | action and operation | movement are demonstrated below.

  By inserting the pipe 130 into the burring 110D of the end plate 110, the contact portion between the pipe 130 and the end plate 110 is in surface contact. Therefore, the stress that is generated by the vibration of the compressor 400 is concentrated and the pipe is liable to leak. Since stress concentration at the contact portion between the end plate 110 and the end plate 110 can be alleviated, leakage failure due to vibration propagation of the compressor 400 can be reduced. Although not shown, it is desirable that the burring 110D is disposed in all the holes of the end plate 110 into which the pipe 130 is inserted, but the burring 110D may not be all.

(Embodiment 8)
FIG. 12 shows a side view of the condensing unit in the eighth embodiment of the present invention.

  In FIG. 12, the end plate 110 of the heat exchanger 100 is provided with a vibration damping hole 110E between the bent portion that receives the load of the compressor 400 and the pipe 130.

  The operation and operation of the condensing unit configured as described above will be described below.

  Since the vibration damping hole 110E is disposed between the pipe 130 and the bent portion of the end plate 110 that receives the load of the compressor 400, the vibration of the compressor 400 can be attenuated. In addition, by making holes, vibration damping holes can be processed simultaneously in the same process as drilling for pipe penetration, etc. It is possible to form the vibration damping hole without applying a load.

  In the present embodiment, the two vibration damping holes 110E are arranged in a square shape, but may be one or more. Further, the hole shape may be a round shape or a long hole shape. It should be noted that the position of the vibration damping hole 110E is preferably directly below the end plate 110 fixing portion of the compressor 400 because vibration is most easily damped.

(Embodiment 9)
FIG. 13 shows a side view of the condensing unit in the ninth embodiment of the present invention.

  In FIG. 13, on the end plate 110 of the heat exchanger 100, a vibration damping overhanging portion 110F is disposed between the bent portion that receives the load of the compressor 400 and the pipe 130.

  The operation and operation of the condensing unit configured as described above will be described below.

  Since the vibration damping overhanging portion 110F is disposed between the pipe 130 and the bent portion of the end plate 110 that receives the load of the compressor 400, the vibration of the compressor 400 can be attenuated. In addition to being able to reduce the amount, the overmolded part can be easily processed in the end plate pressing process, and there is no sagging or burrs after processing, so there is no injury in the processed part. Safety can be ensured.

  In the present embodiment, the vibration damping overhanging portion 110F is formed by a single overhanging portion, but a plurality of overhanging portions may be arranged, and the shape may be a round dimple shape or a louver shape. It doesn't matter. It should be noted that the processing portion position of the overhang processing portion 110 </ b> F is desirable in that the vibration is most easily damped directly below the end plate 110 fixing portion of the compressor 400.

  The condensing unit according to the present invention can be reduced in cost and can be further downsized and enhanced in performance, and thus can be applied to applications such as ice machines, beverage drink dispensers, showcases, refrigerators, and the like.

Side view of condensing unit in Embodiment 1 of the present invention Plan view of the condensing unit in the same embodiment Side sectional view of the condensing unit in the same embodiment The perspective view of the reinforcement board of the condensing unit in the embodiment Side sectional view of a cooling device provided with a condensing unit in the same embodiment Side sectional view of a condensing unit in Embodiment 2 of the present invention Plan view of a condensing unit in Embodiment 3 of the present invention Side view of the condensing unit in Embodiment 4 of the present invention Sectional side view of the cooling device provided with the condensing unit in Embodiment 5 of this invention The principal part expansion perspective view of the heat exchanger in Embodiment 6 of this invention. The principal part cross-sectional enlarged view of the contact part of the end plate and pipe of the heat exchanger in Embodiment 7 of this invention. Side view of the condensing unit in Embodiment 8 of the present invention Side view of the condensing unit in Embodiment 9 of the present invention Side sectional view of a conventional condensing unit

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Heat exchanger 110 End plate 110A, 110B Bending part 110C Elongate hole 110D Burring 110E Vibration damping hole part 110F Vibration damping overhanging part 120 Fin 130 Pipe 200 Fan 300 Reinforcement plate 400 Compressor 410 Electrical part

Claims (25)

  A heat exchanger comprising a plurality of fins, a pipe thermally conductively contacting the fins, end plates located at both ends of the fins, and a compressor, so that the end plate receives the load of the compressor A condensing unit in which the heat exchanger is disposed below the compressor.   The condensing unit according to claim 1, wherein a bending portion that receives a load of the compressor is provided on an upper portion of the end plate.   The condensing unit according to claim 1 or 2, wherein a bent portion for installation and fixing is provided at a lower portion of the end plate.   The condensing unit according to any one of claims 1 to 3, further comprising a reinforcing plate that connects the end plates.   The condensing unit according to claim 4, wherein a duct that flows through the heat exchanger is formed in a space surrounded by the end plate and the reinforcing plate.   The condensing unit according to claim 4 or 5, wherein the compressor is placed on the end plate via the reinforcing plate.   The condensing unit according to claim 6, wherein the compressor is fixed on the end plate with the reinforcing plate interposed therebetween.   The condensing unit according to any one of claims 1 to 7, wherein fins of the heat exchanger are arranged to be inclined in the vertical direction with respect to the end plate.   The condensing unit according to any one of claims 1 to 8, wherein a hole into which the pipe of the end plate is inserted is a long hole.   The condensing unit according to any one of claims 1 to 9, wherein a burring is provided in a hole into which the pipe of the end plate is inserted.   The condensing unit according to any one of claims 1 to 10, wherein a vibration damping portion is provided between a bent portion of the end plate that receives the load of the compressor and an insertion portion of the pipe.   The condensing unit according to claim 11, wherein the vibration damping portion is a hole.   The condensing unit according to claim 11, wherein the vibration attenuating portion is an overhanging portion.   The condensing unit according to any one of claims 1 to 13, further comprising a fan for convection of air through at least the inside of the heat exchanger.   The condensing unit according to claim 14, wherein the fan is attached so that air convected by the fan is also convected to the compressor.   The condensing unit according to claim 14 or 15, wherein the fan is attached to the reinforcing plate.   The condensing unit according to claim 16, wherein a plurality of the fans are attached.   The condensing unit according to claim 16 or 17, wherein the fan is mounted vertically or obliquely.   The cooling device provided with the condensing unit as described in any one of Claims 1-18.   A cooling device provided with the condensing unit according to any one of claims 1 to 13 and a separate fan for cooling the condensing unit.   21. The cooling device according to claim 19 or 20, further comprising an air passage that cools the compressor with intake air flowing through the heat exchanger and discharges the compressor to a back side of the cooling device.   21. The cooling device according to claim 19 or 20, further comprising an air passage that cools the compressor with intake air flowing through the heat exchanger and discharges the compressor to an upper portion on a rear side of the cooling device.   The cooling device according to claim 21 or 22, wherein a condensing unit is arranged so that the fan is located on a front side of the cooling device.   The cooling device according to claim 21 or 22, wherein a condensing unit is arranged so that the fan is located on the back side of the cooling device.   24. The cooling device according to any one of claims 19 to 23, wherein an electrical part of the compressor is provided on a back side of the cooling device.

Images