JP5200942B2 - Ventilation structure inside the vending machine - Google Patents

Description

  The present invention relates to an internal fan structure of a vending machine.

  2. Description of the Related Art Conventionally, commodity storages having a heat insulating structure are arranged in parallel inside a main body cabinet of a vending machine. Inside each of these commodity storages, an internal air blower structure including an internal heat exchanger, an internal air blower fan, and an internal wind tunnel is disposed.

  The internal heat exchanger is a so-called evaporator, and is provided in front of the rear duct of the commodity storage. Such an internal heat exchanger constitutes a refrigeration cycle together with a compressor and a condenser, and evaporates the refrigerant passing through the flow path formed therein, thereby generating internal air (internal atmosphere) supplied through the rear duct. It is for cooling. The internal blower fan serves as a blower source for blowing the internal air of the product storage. This internal blower fan blows internal air in such a manner that the internal air passes through the back duct and then passes through the internal heat exchanger. The internal wind tunnel guides the internal air blown by the internal blower fan toward the product stored in the product storage.

  Such an internal blower structure is integrally assembled from the rear side in the order of the internal heat exchanger, the fan box provided with the internal blower fan, and the internal wind tunnel (for example, patents). Reference 1).

JP 2006-178529 A

  By the way, the internal fan, the fan box, and the internal wind tunnel are integrated due to dimensional errors of the internal heat exchanger, fan box (internal air fan), and internal wind tunnel, or deformation of the rear duct. Even if it is assembled, there is a risk that variations in mounting occur. Due to such mounting variations, gaps are generated between the members, and the internal air passes through the gaps. As a result, the internal air of the product container cannot be circulated well, and the heat exchange efficiency is reduced. There was a fear of inviting.

  In view of the above circumstances, the present invention provides an internal blower structure of a vending machine that can circulate the internal atmosphere of a product storage container by a desired amount and can suppress a decrease in heat exchange efficiency. For the purpose.

  In order to achieve the above object, the internal blower structure of the vending machine according to claim 1 of the present invention is disposed inside each of the commodity storages having a heat insulating structure and disposed in front of the rear duct. The internal heat exchanger, the blower means for blowing the internal atmosphere of the commodity storage box in a mode of passing the internal heat exchanger after passing through the back duct, and the internal air blown by the blower means In the internal blower structure of a vending machine integrally assembled with an internal wind tunnel that guides the atmosphere toward the product stored in the product storage, the internal wind tunnel is a bottom plate that forms the bottom surface And a frame-shaped wind tunnel body placed on the bottom plate member and standing upright, wherein the standing angle of the wind tunnel body with respect to the bottom plate member is an obtuse angle.

  Moreover, the internal blower structure of the vending machine according to claim 2 of the present invention is that, in the above-described claim 1, the internal wind tunnel is configured by bending one plate-like member. Features.

  According to the internal blower structure of the vending machine of the present invention, the internal wind tunnel comprises a bottom plate member that forms the bottom surface, and a frame-shaped wind tunnel body that is placed on the bottom plate member and stands upright, Since the standing angle of the wind tunnel body with respect to the bottom plate member is made obtuse, when the internal wind tunnel is disposed on the bottom wall of the product storage, a force is generated that the internal wind tunnel presses the upper part of the evaporator backward. It will be. As a result of such a force, it is possible to avoid a gap between the members due to mounting variations due to dimensional errors of the evaporator, the internal wind tunnel, etc., or mounting variations due to deformation of the back duct. Therefore, when the internal atmosphere of the product storage is circulated by the air blowing means, there is no risk of the internal atmosphere leaking, and the internal atmosphere can be circulated by a desired amount, and a decrease in heat exchange efficiency is suppressed. There is an effect that can be.

  Exemplary embodiments of a blower structure in a vending machine according to the present invention will be described below in detail with reference to the accompanying drawings.

  FIG. 1 is a cross-sectional view showing a case where an internal structure of a vending machine to which an internal air blowing structure according to an embodiment of the present invention is applied is viewed from the front. The vending machine illustrated here includes a main body cabinet 1.

  The main body cabinet 1 has a rectangular shape with an open front surface. The main body cabinet 1 is provided with three independent commodity containers 3 partitioned by, for example, two heat insulating partition plates 2 in a side-by-side manner. This product storage 3 is for storing products such as canned beverages and beverages containing plastic bottles while maintaining a desired temperature, and has a heat insulating structure.

  FIG. 2 shows the internal structure of the vending machine shown in FIG. As shown in FIG. 2, an outer door 4 and an inner door 5 are provided on the front surface of the main body cabinet 1. The outer door 4 is for opening and closing the front opening of the main body cabinet 1, and the inner door 5 is for opening and closing the front surface of the commodity storage 3. The inner door 5 is divided into upper and lower parts, and the upper door 5a opens and closes when a product is replenished.

  The product storage 3 is provided with a product storage rack 6, a carry-out mechanism 7, a carry-out shooter 8, and an internal blower structure 10. The commodity storage rack 6 is for storing commodities in a manner arranged in the vertical direction. The carry-out mechanism 7 is provided at the lower part of the product storage rack 6 and is used to carry out the products at the bottom of the product group stored in the product storage rack 6 one by one. The carry-out shooter 8 is for guiding the product carried out from the carry-out mechanism 7 to the product take-out port 4 a provided in the outer door 4.

  The internal blower structure 10 is configured by integrally assembling an evaporator 11, a fan box 12, and an internal wind tunnel 13. The evaporator 11 is disposed at the bottom of the commodity storage 3 and on the front side of the rear duct D in a manner communicating with the rear duct D. The evaporator 11 is sequentially connected by a refrigerant pipe 24 together with a compressor 21, a condenser 22 and a capillary tube 23 disposed in the machine room 9 to constitute a refrigerant circuit. Here, the machine room 9 is a room inside the main body cabinet 1 and partitioned from the product storage 3 and below the product storage 3.

  The compressor 21 sucks the refrigerant through the suction port, compresses the sucked refrigerant to be in a high-temperature and high-pressure state (high-temperature and high-pressure refrigerant), and discharges it from the discharge port. The condenser 22 condenses the refrigerant that passes therethrough. More specifically, the refrigerant compressed by the compressor 21 and discharged from the discharge port and sent out through the refrigerant pipe 24 is condensed by exchanging heat with ambient air. The capillary tube 23 is used for adiabatic expansion by depressurizing the refrigerant passing therethrough.

  The fan box 12 has a mounting hole 121 in a part of the front wall and has a rectangular shape in which the entire rear wall is opened, and the opening in the rear wall covers the front surface of the evaporator 11. It is. The fan box 12 is mounted with the internal fan F so as to enter the mounting hole 121. The internal blower fan F is a blower source that blows the internal air (internal atmosphere) of the product storage case 3 by being driven by itself. More specifically, the internal air of the product storage case 3 is blown in a mode in which the inside of the evaporator 11 is passed after passing through the back duct D.

  The internal wind tunnel 13 is disposed in a manner communicating with the mounting hole 121 on the front side of the fan box 12. The internal wind tunnel 13 guides the internal air blown by the internal blower fan F toward the product stored in the product storage 3, that is, the product stored in the product storage rack 6.

  FIG. 3 is a perspective view showing the internal wind tunnel 13 shown in FIG. The internal wind tunnel 13 illustrated here is formed by bending a single plate-like member 13a that has been subjected to cutting as shown in FIG. 4, and includes a bottom plate portion 131, a wind tunnel main body 132, and a presser portion 133. It has.

  The bottom plate part 131 is a part constituting the bottom surface of the internal wind tunnel 13. A front end portion of the bottom plate portion 131 is formed with a guide 131a bent upward. The guide 131a is for guiding the passing internal air upward. Further, the bottom plate portion 131 is formed with a tongue-shaped attachment piece 131b, and the attachment piece 131b is formed with an insertion hole 131c through which the fastening member T (see FIG. 6) is inserted.

  The wind tunnel main body 132 has a frame shape that is erected while being placed on the bottom plate portion 131. The wind tunnel body 132 constitutes a ventilation passage for the internal air blown by the internal blower fan F. An engagement piece 132a1 for entering the engagement hole 122 (see FIG. 5) of the fan box 12 is formed at the front end of the side plate 132a constituting the wind tunnel body 132. As shown in FIG. 5, when the engagement piece 132 a 1 enters the engagement hole 122, the internal wind tunnel 13 is engaged with the fan box 12. Here, the standing angle of the wind tunnel body 132 with respect to the bottom plate portion 131, that is, the angle θ in FIG. 3, is adjusted to an obtuse angle, that is, 90 ° + α. The code | symbol 134 in FIG. 3 is a waterproof cover.

  The presser part 133 is a part constituting the rear surface of the internal wind tunnel 13, and a communication hole 133 a that communicates with the mounting hole 121 of the fan box 12 is formed. The presser 133 is for supporting the internal blower fan F arranged in a manner to enter the mounting hole 121 of the fine box when the internal wind tunnel 13 is engaged with the fan box 12. is there.

  As shown in FIG. 5, the internal wind tunnel 13 is engaged with the fan box 12 by causing the engagement piece 132 a 1 to enter the engagement hole 122 of the fan box 12. As shown in FIG. 6, the internal wind tunnel 13 engaged with the fan box 12 is pressed from the front side so that the opening of the rear wall of the fan box 12 covers the front surface of the evaporator 11. By fastening the attachment piece 131b to the bottom wall of the commodity storage 3, the internal blower structure 10 assembled integrally by the evaporator 11, the fan box 12, and the internal wind tunnel 13 is configured.

  In this case, when the internal wind tunnel 13 is fastened to the bottom wall of the product storage case 3 by making the standing angle of the wind tunnel main body 132 an obtuse angle, the internal wind tunnel 13 is connected via the fan box 12. A force for pressing the upper portion of the evaporator 11 backward is generated. As a result of such a force, for example, it is possible to avoid a gap between the members due to mounting variations due to dimensional errors of the evaporator 11, the fan box 12, and the internal wind tunnel 13, or mounting variations due to deformation of the rear duct D. Can do. Therefore, when the internal air of the product storage case 3 is circulated by driving the internal blower fan F, the internal air is not likely to leak from the gaps between the members constituting the internal blower structure 10. Can be circulated satisfactorily by a desired amount, and a decrease in heat exchange efficiency can be suppressed.

  Moreover, according to the internal blower structure 10, since the internal wind tunnel 13 is formed by bending one plate member 13a, there is no possibility of causing an increase in the number of parts and the manufacturing cost. Can be reduced.

It is sectional drawing which shows the case where the internal structure of the vending machine to which the internal ventilation structure which is embodiment of this invention is applied is seen from the front. FIG. 2 is a cross-sectional side view of a commodity storage case 3 showing the internal structure of the vending machine shown in FIG. 1. It is a perspective view which shows the internal wind tunnel shown in FIG. It is explanatory drawing which shows the plate-shaped member used as the base of the internal wind tunnel shown in FIG. FIG. 4 is a perspective view showing a state in which the internal wind tunnel shown in FIG. 3 is engaged with a fan box. It is a side view which shows the attachment state of the ventilation structure in a store | warehouse | chamber.

DESCRIPTION OF SYMBOLS 10 Internal ventilation structure 11 Evaporator 12 Fan box 121 Mounting hole 122 Engagement hole 13 Internal wind tunnel 131 Bottom plate part 131a Guide 131b Mounting piece 131c Insertion hole 132 Wind tunnel main body 132a Side plate 132a1 Engagement piece 133 Press part 133a Communication hole 134 Waterproof cover D Rear duct F Fan inside the fan

Claims (2)

An internal heat exchanger disposed inside each of the commodity storages having a heat insulating structure and disposed in front of the rear duct,
Blower means for blowing air in an aspect in which the internal atmosphere of the product storage box is passed through the internal heat exchanger after passing through the back duct;
In the internal blower structure of the vending machine integrally assembled with the internal wind tunnel that guides the internal atmosphere blown by the air blowing means toward the product stored in the product storage,
The internal wind tunnel includes a bottom plate member that forms a bottom surface, and a frame-shaped wind tunnel body that is placed on the bottom plate member and stands upright, and the vertical angle of the wind tunnel body with respect to the bottom plate member Ventilation structure inside the vending machine characterized by an obtuse angle.   The internal blower structure of a vending machine according to claim 1, wherein the internal wind tunnel is configured by bending one plate-like member.

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