JP2005316798A - Vending machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a vending machine wherein the lifetime of equipment can be extended by preventing the temperature rise of a motor shaft of a blower fan and the heat exchange efficiency can be improved by concentrating air sent from the blower fan into a heat transmission range of a heater. <P>SOLUTION: In a heat exchange chamber 8, a heat reflection plate 20 for intercepting radiant heat radiated from a heater 7 toward a blower fan 2 and a wind directing plate 30 for concentrating air distributed by the heat reflection plate 20, to the heater 7 are installed on a floor 19 of a commodity storage box 1. The heat reflection plate has an approximately triangular section having an apex on the side of the blower fan in the plane view or has an approximately conical shape, and the wind directing plate 30 has an approximately chevron-shaped section being narrower on the side of the heater 7 in the plane view or has an approximately truncated conical shape having a top plate and a bottom plate opened. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vending machine that cools or heats products such as beverages in containers such as cans, bottles, packs, and PET bottles for sale.

FIG. 5 is a longitudinal sectional view in side view showing a conventional vending machine.
In FIG. 5, a vending machine 900 includes a casing surrounded by a heat insulating material and provided with an opening on one side, and a heat insulating door 12 provided with a merchandise outlet 10 for carrying out merchandise and capable of opening and closing the opening. The product storage 1 is provided, and a cooling unit 5 and a heater 7 for setting the air inside the product storage 1 to a predetermined temperature. The product 3 is a product such as a beverage in a container such as a can, a bottle, or a plastic bottle, and indicates the product itself or a container in which the product is enclosed.

(Product storage)
In the lower part of the heat insulation door 12 (left side in the figure) of the product storage 1, a product take-out port 10 for taking out the product is provided, and a shooter 9 inclined toward the product take-out port 10 is disposed. The interior of the storage 1 is partitioned up and down.
A product rack 4 for stacking the products 3 is disposed above the shooter 9, and a heat exchange chamber 8 is disposed below the shooter 9. The shooter 9 is inclined so as to gradually become lower toward the front (left side in the figure), and sends the product 3 dropped from the product rack 4 to the product carry-out port 10. The shooter 9 has a vent hole (not shown) through which air blown from the blower fan 2 (cooled or heated air) flows above the shooter 9 and circulates inside the product storage 1. It has been drilled.

(Wind flow)
Further, a circulation duct wall 14 is disposed at a predetermined interval substantially in parallel with the rear wall 13 (right side in the drawing) of the product storage 1. A circulation duct suction port 17 that opens to reach the position of the product rack 4 is formed above the circulation duct wall 14, and a circulation duct outlet 15 that opens to communicate with the heat exchange chamber 8 below the circulation duct wall 14. The circulation duct 11 is formed in a space provided between the rear wall 13 and the circulation duct wall 14.
Therefore, the air sent by the blowing means 2 (hereinafter referred to as a blowing fan) passes through a vent hole (not shown) provided in the shooter 9 and is sucked into the circulation duct 11 via the inside of the product rack 4. Then, since it returns to the blower fan 2, the air circulates in the product storage 1.

At this time, when the cooling unit 5 is operated to supply cold heat to the evaporator 6, the air cooled in the evaporator 6 blows out toward the product rack 4 through the vent holes, and the product 3 accumulated in the product rack 4. Cool down. Then, the warm air returns to the evaporator 6 again via the circulation duct 11.
On the other hand, when the heater 7 is operated, the heated air is blown out toward the product rack 4 through the ventilation holes, and the product 3 accumulated in the product rack 4 is heated. Then, the cooled air returns to the heater 7 again via the circulation duct 11 Note that the evaporator 6 is connected to the cooling unit 5 (installed outside the product storage 1), and predetermined cold heat is generated. To be supplied. The evaporator 6 (which cools the product storage 1) or the heater 7 (which heats the product storage 1) is properly used for each product storage according to the type of product and seasonal changes.

(Heat exchange room)
The heat exchange chamber 8 is installed on the floor surface 19 of the product storage 1, contacts the circulation duct wall 14, and communicates with the circulation duct outlet 15. And the heat exchange means (the evaporator 6 and the heater 7) for maintaining the air in the goods storage 1 at predetermined temperature, and the ventilation fan 2 for circulating the air in the goods storage 1 are accommodated. ing.
At this time, the heater 7 is disposed downstream of the blower fan 2 so that the air heated by the heater 7 does not hit the blower fan 2. Further, in order to avoid the bearing temperature of the blower fan 2 from rising due to the radiant heat from the heater 7 and thereby shortening the service life, a heat shield plate 18 for shielding the radiant heat is provided between the heater 7 and the blower fan 2. Is installed.
Therefore, the air sent out by the blower fan 2 first collides with the heat shielding plate 18 and is distributed to the surroundings, and then passes through the heater 7. And it blows out above the shooter 9, is heat-exchanged with the goods 3 in the goods rack 4, and is sucked into the heat exchange chamber 8 again via the circulation duct 11 (for example, refer patent document 1).

JP 11-185134 A (page 4, FIG. 3)

However, the invention disclosed in Patent Document 1 prevents the radiant heat radiated from the heater 7 toward the blower fan 2 from being directly applied to the bearing part of the blower fan (substantially the same as the rotation center of the propeller). Since the flow of the wind sent out from the blower fan 2 once collides with the heat shielding plate 18 and is distributed to the surroundings, there is a problem that it passes through the heater 7 or does not concentrate on the heat transfer range of the heater 7. is there.
That is, the air that collides with the heat shielding plate 18 and is dispersed vertically and horizontally flows along the side wall of the heat exchange chamber 8 and the floor surface 19 of the product storage 1, so that it passes through the heater 7 and is heated sufficiently. There is a problem that unaired air is sent to the commodity rack 4 and heat exchange is performed mainly at the peripheral portion of the heater, so that the heat exchange efficiency is lowered.
Further, since the support member 18s of the heat shielding plate 18 is fixed in the vicinity of the blower fan 2, the heat of the heat shield plate 18 heated by radiant heat is thermally conducted to the blower fan 2 via the support member 18s, There is a problem that the service life is shortened by increasing the motor bearing temperature.

  The present invention has been made to solve the above-mentioned problems, and it is possible to extend the life of the equipment by preventing the increase in the motor bearing temperature of the blower fan, and the air sent from the blower fan is transmitted to the heater. The object is to obtain a vending machine that can improve the heat exchange efficiency by concentrating on the heat range.

The vending machine according to the present invention (Claim 1) is a heat insulating door that is surrounded by a heat insulating material and has an opening provided on one side thereof, and a product unloading port for carrying out a product, and is capable of opening and closing the opening. A product storage room comprising:
A product rack which is arranged in the product storage and has a function of storing products and sequentially transporting them downward;
A shooter for guiding a product dropped from the product rack to the product exit;
Heating means disposed below the shooter for heating air;
A blowing means for sending air to the heating means;
A vending machine having a circulation duct for circulating the air heated by the heating means to the blowing means via the inside of the commodity rack,
A reflector for blocking radiant heat radiated from the heating unit toward the blowing unit between the heating unit and the blowing unit, and air distributed by the heat reflecting plate is guided toward the heating unit. A wind direction plate is arranged.

  The vending machine according to the present invention (Claim 2) is characterized in that the heat reflecting plate and the wind direction plate are installed on a floor surface of the commodity storage.

  In the vending machine according to the present invention (Claim 3), the heat reflecting plate has a substantially triangular shape or a substantially V-shaped cross section having a vertex on the air blowing means side in a plan view, and the wind direction plate in the plan view. The heating means side has a substantially cross-sectional shape that becomes narrower.

  In the vending machine according to the present invention (Claim 4), the heat reflecting plate has a substantially conical shape or a substantially polygonal frustum shape having an apex on the air blowing means side, and the wind direction plate is narrowed on the heating means side. And a substantially truncated cone shape or a substantially polygonal frustum shape having an open base plate.

  Since the vending machine according to the first aspect of the present invention has the heat reflecting plate and the heat reflecting plate, the temperature rise of the air blowing means is prevented to extend the life of the equipment, and the heat exchange efficiency in the heating means is improved. Thus, energy saving (power saving) of the heating means is achieved.

  Further, in the vending machine according to claim 2, since the heat reflecting plate and the wind direction plate are installed on the floor surface of the commodity storage, the heat is blown from the heat reflecting plate and the wind direction plate heated by the radiant heat. Therefore, the temperature of the blowing means is prevented from rising.

  Furthermore, in the vending machine according to claim 3, since the heat reflecting plate has a substantially triangular shape having a vertex on the air blowing means side, the structure is simple and can be manufactured at a low cost, and the heat blowing plate is radiated to the air blowing means. It is possible to distribute the wind flow to the left and right while reflecting the radiant heat and suppressing the disturbance of the wind flow. In addition, since the wind direction plate has a substantially C-shaped cross section in which the heating means side becomes narrower, the structure can be easily manufactured at low cost, and the flow of the distributed wind can be concentrated toward the heating means. become.

  Further, in the vending machine according to the fourth aspect, since the heat reflecting plate has a substantially conical shape or the like, the radiant heat radiated toward the air blowing means is reflected in a minimum area, and the wind flow is Therefore, it is possible to suppress the generation of extra vortices and a decrease in the blowing speed. In addition, since the wind direction plate has a substantially truncated cone shape with the top plate and the base plate opened (same as not having the top plate and the base plate), the wind direction plate can be easily and inexpensively formed by the plate material, and the wind distributed to the surroundings It is possible to reliably collect the flow of gas toward the heating means.

FIG. 1 is a cross-sectional view in side view showing a configuration of an embodiment according to a vending machine of the present invention. In addition, the same code | symbol is attached | subjected to the same part as background art (FIG. 5), and one part description is abbreviate | omitted.
The heat exchange chamber 8 of the vending machine 100 is installed on the floor surface 19 of the product storage 1 in contact with the circulation duct wall 14 and communicates with the circulation duct outlet 15. The heat exchange chamber 8 includes a cooling means 6 (hereinafter referred to as “evaporator 6”) and a blowing means 2 (hereinafter referred to as “blower fan”) in order along the flow of wind from a position close to the circulation duct outlet 15. 2 ”), a heat reflecting plate 20, a wind direction plate 30, and a heating means 7 (hereinafter referred to as“ heater 7 ”).
The heat reflecting plate 20 shields the radiant heat radiated toward the blower fan 2 (particularly, the bearing) from the radiant heat radiated from the heater 7, and is installed on the floor surface 19. The wind direction plate 30 guides the air distributed by the heat reflecting plate 20 toward the heater 7, and is installed on the floor surface 19.

2 and 3 are a sectional view schematically showing a heat exchange chamber in the vending machine shown in FIG. 1 and a perspective view showing a heat reflecting plate.
In FIG. 2, the heat exchange chamber 8 is divided by a partition wall 8w into a cooling chamber 8c that houses the evaporator 6 (not shown) and a heating duct 8h that houses the heater 7, and the blower fan 2 is installed in the partition wall 8w. ing. That is, air is sent from the cooling chamber 8c (lower side in FIG. 2) toward the outlet (upper side in FIG. 2) of the heating duct 8h.

Further, a heat reflecting plate 20 for shielding the radiant heat radiated from the heater 7 is installed on the floor 19 downstream of the blower fan 2, that is, between the blower fan 2 and the heater 7. On the downstream side of the plate 20, that is, between the heat reflecting plate 20 and the heater 7, a wind direction plate 30 that guides the air distributed by the heat reflecting plate 20 toward the heater 7 is installed.
The blower fan 2 includes a cylindrical venturi 2c, a propeller 2p that rotates within the venturi 2c, and a fan motor 2m that rotationally drives the propeller 2p. The propeller 2p is fixed to the rotating shaft 2s of the fan motor 2m, and the rotating shaft 2s is supported by a bearing 2b.

2 and 3, the heat reflecting plate 20 is a plate material formed in a substantially triangular shape in plan view, and the apex A is arranged on the blower fan 2 side to distribute the flow of wind to the left and right (FIG. 3). Indicated by arrows). A flange 21 is formed at the lower end of the heat reflecting plate 20, and the flange 20 f is fixed to the floor surface 19.
Therefore, the heat reflecting plate 20 prevents the radiant heat mainly radiated from the bearing 2m of the blower fan 2 from the radiant heat from the heater 7. Further, even if the heat reflecting plate 20 itself is heated by radiant heat, the heat is transmitted to the floor surface 19, so that the blower fan 2 is not heated by the heat. The heat reflecting plate 20 may be formed in a substantially V shape by removing the bottom side (a plate material connecting the side edge B and the side edge C).

In FIG. 2, the wind direction plate 30 is formed of a pair of plate members, and is arranged in a substantially C shape that becomes narrower on the heater 7 side in plan view. Therefore, the wind flow (shown by white arrows in the figure) distributed to the left and right by the heat reflecting plate 20 is guided by the wind direction plate 30 and concentrated on the heater 7.
Since the side edge portion D and the side edge portion G of the wind direction plate 30 are in contact with the side wall of the heater duct 8h, the air distributed to the left and right by the heat reflecting plate 20 flows along the side wall of the heater duct 8h. It does not pass through the range outside of 7. Therefore, the temperature rise of the bearing 2b of the sending fan 2 is prevented, the life of the bearing 2b is prolonged, and the heat exchange efficiency in the heater 7 is improved to save energy (power saving).

FIG. 4 is a perspective view showing another example of the heat reflecting plate and the wind direction plate in the embodiment according to the vending machine of the present invention.
In FIG. 4, the heat reflecting plate 21 has a substantially conical shape formed of a plate material, and the apex H is arranged toward the blower fan 2 (not shown). Therefore, the radiant heat directed to the bearing 2m (see FIG. 2) of the blower fan 2 is effectively reflected with a minimum area, and the flow of the wind sent from the blower fan 2 is surrounded (over the entire upper, lower, left, and right circumferences). ) Almost evenly, it can be distributed while suppressing the disturbance of the flow.
And since the supporting member 22 is fixed to the side surface of the heat reflecting plate 21, and the flange 22f provided at the lower end thereof is installed on the floor surface 19 of the product storage case 1, the heat reflecting plate 21 itself is heated by radiant heat. Even if it is done, the heat will be transmitted to the floor surface 19, and the ventilation fan 2 will not be heated by the heat.

The wind direction plate 31 has a substantially truncated cone shape in which a top plate and a ground plate are opened, and is formed of a plate material (same as a tapered cylinder). Therefore, the flow of the wind distributed almost uniformly by the heat reflecting plate 21 is collected toward the heater 7. Therefore, the temperature rise of the bearing 2b of the sending fan 2 is prevented, the life of the bearing 2b is prolonged, and the heat exchange efficiency in the heater 7 is improved to save energy (power saving).
In the present invention, the shape of the heat reflecting plate and the wind direction plate is not limited to the above, and may be any shape as long as it reflects radiant heat and concentrates the wind flow on the heater.

  Since the present invention has the above-described configuration, it can be widely used as a life extension means and energy saving means for various vending machines.

Sectional drawing of the side view which shows the structure of embodiment which concerns on the vending machine of this invention. FIG. 2 is a cross-sectional view in plan view schematically showing the heat exchange chamber in FIG. 1. The perspective view which shows the heat | fever reflecting plate in FIG. The perspective view which shows the other Example of the heat | fever reflection board and wind direction board in FIG. The longitudinal cross-sectional view of the side view which shows the conventional vending machine.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Commodity storage box 2 Blower fan 3 Commodity 4 Commodity rack 5 Cooling unit 6 Evaporator 7 Heater 8 Heat exchange chamber 9 Shuter 10 Commodity outlet 11 Circulation duct 15 Circulation duct outlet 17 Circulation duct inlet 19 Floor surface 20 Heat reflector 21 Heat Reflector 30 Wind Direction Plate 31 Wind Direction Plate 100 Vending Machine

Claims (4)

A product storage room including a housing surrounded by a heat insulating material and provided with an opening on one surface, and a heat-insulating door provided with a product outlet for carrying out the product and capable of opening and closing the opening;
A product rack which is arranged in the product storage and has a function of storing products and sequentially transporting them downward;
A shooter for guiding a product dropped from the product rack to the product exit;
Heating means disposed below the shooter for heating air;
A blowing means for sending air to the heating means;
A vending machine having a circulation duct for circulating the air heated by the heating means to the blowing means via the inside of the commodity rack,
A heat reflecting plate for blocking radiant heat radiated from the heating unit toward the blowing unit between the heating unit and the blowing unit, and air distributed by the heat reflecting plate is directed toward the heating unit. A vending machine characterized by arranging a wind direction plate to guide.   The vending machine according to claim 1, wherein the heat reflecting plate and the wind direction plate are installed on a floor surface of the commodity storage.   The heat reflecting plate has a substantially triangular shape or a substantially V-shaped cross section having a vertex on the air blowing means side in a plan view, and the wind direction plate has a substantially cross-sectional shape in which the heating means side becomes narrow in a plan view. The vending machine according to claim 1 or 2, characterized in that: The heat reflecting plate has a substantially conical shape or a substantially polygonal frustum shape having an apex on the air blowing means side, and the wind direction plate has a substantially truncated cone shape or a substantially polygonal frustum shape having a top plate and a base plate that are narrowed on the heating means side. The vending machine according to claim 1, wherein the vending machine is in a shape.

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