JP5442298B2 - Cooling delivery cart - Google Patents

Description

  The present invention relates to a cooling delivery cart that delivers articles while maintaining cooling to a predetermined temperature.

  2. Description of the Related Art Conventionally, there is a low-temperature warehouse for low-temperature logistics that is used for delivery of goods with a low temperature inside the warehouse. In this low temperature storage, for example, a delivery item such as food on the distribution base that needs to be maintained at a predetermined cooling temperature is stored in the storage, and is loaded on the loading platform of the delivery vehicle and conveyed. And it delivers to a delivery destination with a delivery vehicle, takes out a delivery article from the warehouse on the spot, and delivers it to a destination person etc.

  For example, in the low temperature storage shown in Patent Document 1, the cool storage agent is frozen in advance by a cooling device, and then the storage chamber is cooled by the latent heat of fusion of the cool storage agent. According to this, during the cold storage operation, the storage battery is charged by the AC power supply, and the cooling device is operated by the AC power supply and is frozen by the cooler provided in heat exchange with the cold storage agent. The air blower was operated, and a cold insulation operation was performed in which the cool air of the regenerator was circulated and cooled in the storage room.

JP-A-9-53874

  However, in the case of delivery using a conventional low temperature storage, it is difficult to enter a delivery vehicle or stop in a city area, office district, residential area, building district, large commercial facility, etc. The delivery car must be parked. For this reason, the delivery article is taken out from the low-temperature storage at a position away from the delivery destination and delivered in a state where it is exposed to the outside air temperature. During this time, the temperature of the delivery article was inevitably increased, causing deterioration and deterioration of quality. Therefore, there is a problem that reliability at the time of delivery decreases.

  Therefore, when delivering in an area where such a delivery vehicle is difficult to enter, the delivery article is stored in a cool bag having a heat insulating effect and delivered to the delivery destination on foot. However, especially in the summer when the sunlight and the outside air temperature are high, or in a situation where the environmental temperature is high due to the heating equipment, the temperature of the delivery articles stored in the cold insulation bags rises with time.

  For this reason, it is conceivable to construct a cart equipped with a cooling device for cooling the storage chamber and to provide a storage battery for driving the cooling device. However, since such a delivery operation is mainly performed outdoors, cooling is performed. There is a problem that rainwater enters the device and the storage battery. When water is applied to the connection portion that electrically connects the storage battery and the cooling device, there is a problem that causes a short circuit or the like.

  The present invention has been made in order to solve the conventional technical problems, and enables a low-temperature delivery article to be delivered while being maintained at a predetermined cooling temperature by means of a hand cart. A cooling delivery cart capable of preventing water from entering a connecting portion is provided.

In order to solve the above-mentioned problems, a cooling delivery cart of the present invention includes a moving wheel, a handle for pushing, a heat insulating box having a storage chamber for storing delivery items, and a compressor constituting a refrigeration cycle. , condenser and a cooling device for have a battery for driving the evaporator and the compressor, an evaporator of a cooling device in heat-insulating main body is installed, cooled in a machine room constructed under the insulation box The compressor, the condenser, and the storage battery of the device are installed, and the cooling device has a storage unit in which the storage battery is detachably stored, and the storage battery has a low direction in which the storage battery is inserted in the storage unit. Is stored in an inclined state, and the storage battery is electrically connected to other devices via a connection provided at the back of the storage, and a drain hole is formed below the connection. It is characterized by.

The cooling delivery cart of the invention of claim 2 is characterized in that, in the above invention , a rail portion on which the storage battery slides is laid in the storage portion.

The cooling delivery cart of the present invention includes a moving wheel, a handle for pushing, a heat insulating box having a storage chamber for storing delivery items, a compressor, a condenser, an evaporator, and a compressor constituting a refrigeration cycle. and a cooling device for have a battery for driving the machine, the evaporator of a cooling device in heat-insulating main body is installed, the compressor of the cooling device in a machine room constructed under the heat-insulating main body, condenser and Since the storage battery is installed, in the cooling and delivery cart that delivers the goods at a low temperature in the storage room, the heat insulation box for storing the goods at a low temperature is placed above, and the machine room containing the cooling device is placed below. Thus, the articles can be easily taken in and out, and the heavy cooling device can be stably delivered by being arranged in the lower part.

In addition, the cooling device has a storage part in which the storage battery is detachably stored, and the storage battery is stored in an inclined state so that a direction in which the storage battery is inserted is lowered, and the storage battery is stored. Since the drainage hole is formed in the lower part of the connection part and is electrically connected to other equipment via a connection part provided at the back of the part, the cart is outdoors on the road etc. Even when rain or the like enters the storage part of the storage battery, it can be drained smoothly from the drain hole. In particular, since this drain hole is formed below the connection portion that electrically connects the storage battery and other devices, it is possible to prevent inconvenience related to the connection portion due to water that has entered the storage portion. Become.

Further, storage unit, it means to hold in a state where the direction in which the storage battery is inserted is inclined the storage battery to be lower, stable battery can be held in the accommodating portion, the storage battery from falling off the housing part Inconvenience can be prevented. In addition, since the drain hole is formed in the lower part of the storage part below the connection part, even if the storage battery is inclined and stored and the connection part is disposed below, the drainage hole is smoothly accumulated in the storage part. It becomes possible to drain water.

Furthermore, by storing the storage battery at an inclination, the height of the storage battery can be reduced and the height dimension of the machine room can be suppressed, which makes it easy for the operator to put in and out articles from the heat insulating box. It becomes possible to do. Moreover, since it was set as the structure which electrically connects a storage battery with another apparatus via the connection part provided in the back part of the accommodating part, when a storage battery is pressed by the connection part by dead weight and a cooling delivery cart | bowl operates. Even if vibration occurs, the contact between the storage battery and the connecting portion is ensured.

According to the second aspect of the invention, in addition to the above-described invention , since the rail portion on which the storage battery slides is laid in the storage portion, it is possible to facilitate the work of detaching the storage battery from the storage portion. . Moreover, a storage battery can be stably hold | maintained by the said rail part irrespective of the shape of a storage battery.

It is a perspective view of the cooling delivery cart of the present invention. It is a front view of the cooling delivery cart of FIG. It is a back perspective view of the cooling delivery cart of FIG. It is a back perspective view of the cooling delivery cart of the state where the door was removed. FIG. 5 is a left side view from the front of FIG. 4. It is a perspective view of the door body which constitutes a door. It is a perspective view of the cooling delivery cart in the state where the door is slightly opened. It is a perspective view of the cooling delivery cart of the state where only the 1st door object was opened. It is a partially notched perspective view which shows the internal structure of a heat insulation box. It is a perspective view of a machine room. It is a top view of a machine room. It is a right view of a machine room. It is a bottom view of a trolley. It is a perspective view which shows the fixed state of a trolley | bogie and a cooling storage. It is the partial expansion perspective view of the machine room which expanded the storage battery part. It is the partial expansion perspective view of the machine room which looked at the storage battery part from back. It is a partial expansion perspective view of a control panel part. It is an electrical block diagram of a cooling delivery cart and a charger.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is a perspective view of the cooling delivery cart 1 of the present invention, FIG. 2 is a front view of the cooling delivery cart 1 of FIG. 1, FIG. 3 is a rear perspective view of the cooling delivery cart 1 of FIG. FIG. 5 shows a left side view from the front of FIG. 4.

  In the state where the AC power supply is connected at the delivery base, the cooling delivery cart 1 of the present embodiment receives the supply of the AC power supply and operates the compressor 57, each of the blowers 42 and 59, and the like in the storage chamber 4. The battery is cooled to a temperature, and the storage batteries 70 and 71 are filled, and after storing the cooling and delivery items such as food, the compressor 57 and the blowers 42 and 59 are supplied by power supply from the storage batteries 70 and 71 in a state where the AC power supply is cut off. Is a distribution delivery cart that can cool the interior of the storage room 4 to a predetermined temperature and directly go to a delivery destination such as each home or office by hand.

  The cooling delivery cart 1 includes a cart 2 and a cooling storage 3. The carriage 2 has a loading platform 11 provided with wheels 12... For movement at the four corners of the lower surface, and one side of the loading platform 11 (in this embodiment, the side constituting the front surface of the cooling delivery cart 1). It is comprised from the cart main body 13 which has the handle | steering-wheel 14 for pushing up more upward. The carriage 2 is fixed by a fixture 15 in a state where the cooling storage 3 is arranged on the loading platform 11 as will be described in detail later.

  The cooling storage 3 is configured to have a width dimension substantially the same as the loading platform 11 of the carriage 2, and the main body is configured from a heat insulating box 20 that opens to the upper surface. This heat insulation box 20 is made of an aluminum or steel plate outer box 21 opened on the upper surface, and an aluminum plate, steel plate or hard synthetic resin opened on the upper surface incorporated in the outer box 21 with a space. The inner box 22 is made of a heat insulating material (not shown) made of urethane foam filled between the outer box 21 and the inner box 22.

  The inner box 22 serves as a storage chamber 4 for storing cooling and delivery items such as food, and the upper surface opening 5 of the storage chamber 4 is thermally insulated so as to be pivotable about one side of the upper surface. The door 6 can be opened and closed freely. In the present embodiment, the inside of the storage chamber 4 is set to a height dimension, for example, about 590 mm, at which the dedicated storage boxes of about 290 mm can be stacked and stored in two stages. Thereby, the storage property in a store | warehouse | chamber can be improved. In addition, the said dimension is not limited to this, The storage in a store | warehouse | chamber is also comprised by comprising in the dimension in which the storage box currently employ | adopted can be stacked and stored, such as two steps or three steps. Can be improved.

  Here, the structure of the upper surface opening 5 of the heat insulation box 20 and the door 6 will be described with reference to FIGS. 6 to 8. 6 is a perspective view of the door bodies 25 and 26 constituting the door 6, FIG. 7 is a perspective view of the cooling delivery cart 1 in a state where the door 6 is slightly opened, and FIG. 8 is a state in which only the first door body 25 is opened. The perspective view of the cooling delivery cart 1 is shown, respectively.

  The upper surface opening 5 of the heat insulating box 20 that is closed openably and closably by the door 6 is a surface on the side where the delivery work of the cooling delivery article stored in the storage chamber 4 is performed, in this embodiment, the handle 14 side. When the front surface is used, the upper surface opening edge (one side of the upper surface opening) 5A on the left surface facing the front surface is a lower portion 23 configured to be lower than the other three sides by a predetermined dimension.

  And it is set as the paragraph part 24 formed in the inside of three sides of the upper surface opening edge except the low-order part 23 lower than the outer end surface 5B by a predetermined dimension, for example, about 1 cm.

  The door 6 is composed of a plurality of door bodies arranged side by side, in the present embodiment, a first door body 25 and a second door body 26, for example, a first door located on the handle 14 side. The door body 25 and the second door body 26 located on the opposite side of the handle 14 have a closed area of a ratio of about 7: 3. In addition, the ratio of the said obstruction | occlusion area is not limited to this.

  Each of the door bodies 25 and 26 has a sheet material 27 and 28 having a water-repellent finish on the surface, for example, a resin sheet such as nylon, vinylon, or tetron, and a plate-like heat insulation (not shown) covered with the sheet material. It is composed of materials. 6 and 8, the heat insulating material accommodated in the sheet material is indicated as 29.

  And the heat insulating material 29 of each door body 25 and 26 is comprised in the dimension which can close | close the said upper surface opening 5 in the state which arranged these on the paragraph part 24 of the upper surface opening 5, and the said heat insulating material 29 concerned. The outer peripheral edges of the sheet materials 27 and 28 except for the ends adjacent to each other are formed so as to cover at least the upper surface of the heat insulating box 20.

  Moreover, the lower part 23 side end part formed in 5 A of upper surface opening one sides of the heat insulating material of each door body 25 and 26 is drooping toward the upper surface of the said lower part 23, and is comprised of the said heat insulating material 29. The lower end is in contact with the upper surface of the lower portion 23 via the sheet materials 27 and 28 that are covered.

  The doors 25 and 26 are formed with sheet materials 27 and 28 that cover the heat insulating material, respectively, on the side for carrying out the delivery work of the cooling and delivery items stored in the storage chamber 4, that is, the lower portion 23. Hinge portions 30 and 31 are formed on the side (one side) opposite to the other side (the other side). On the open side (other side) of each door body 25, 26, open / close side covering portions 32, 33 that cover the lower portion 23 of the upper surface opening 5 are formed.

  As shown in FIGS. 1 and 6, the hinge portions 30 and 31 are constituted by fin portions 30 </ b> A and 30 </ b> B and 31 </ b> A and 31 </ b> B that sandwich an upper end on one side of the heat insulating box 20. These fins are provided with attachment means for detachably attaching to one side of the heat insulating box 20. In the present embodiment, the outer casing 21 outer surface upper end portion of the heat insulating box 20 and the inner surface upper end portion of the inner box 22, specifically, the inner wall surface 22 </ b> A constituting the paragraph portion 24 is provided with attachment means not shown in advance. One of the constituting surface fasteners (for example, Velcro (registered trademark)) is provided. And the other hook-and-loop fastener 30C, 31C corresponding to one hook-and-loop fastener attached to the outer surface of the outer box 21 of the heat insulation box 20 is provided in the inner surface of fin part 30A, 31A located outside. The other surface fasteners 30 </ b> D and 31 </ b> D corresponding to the one surface fastener attached to the inner surface of the inner box 22 of the heat insulation box 20 are provided on the outer surfaces of the fin portions 30 </ b> B and 31 </ b> B located on the inner side.

  On the other hand, the lower end portions of the open / close side covering portions 32 and 33 of the door bodies 25 and 26 extend downward by a predetermined dimension from the upper end portion of the lower portion 23 so as to cover the upper portion of the lower portion 23 on the other side. Configured. Then, one hook-and-loop fastener 34 is attached to the upper outer surface of the lower portion 23 and constitutes a holding means for extending in the longitudinal direction and detachably holding the open / close side covering portions 32 and 33 on the heat insulating box 20. It has been. The other hook-and-loop fasteners (holding means) 32A and 33A corresponding to the hook-and-loop fastener 34 are attached to the positions corresponding to the hook-and-loop fastener 34 on the inner surfaces of the lower end portions of the open / close side covering portions 32 and 33, respectively.

  In this embodiment, a hook-and-loop fastener is used as the detachable mounting means and holding means, but the present invention is not limited to this. For example, the outer box 21 and the inner box 22 of the heat insulating box 20 are made of steel plates. The door body 25, 26 may be made of a material and may be provided with magnets as attachment means and holding means.

  Opening / closing handles 35 and 36 are respectively attached to the outer surfaces of the lower ends of the opening / closing side covering portions 32 and 33. In this embodiment, the opening and closing handles 35 and 36 are made of chemical fibers (cloth) such as nylon or polyester.

  In the present embodiment, the end of the first door body 25 having the larger closing dimension of the upper surface opening 5 on the second door body 26 side is adjacent to the open / close side covering portion 32 in a closed state. The overlapping part 37 which covers the edge part of the door body 26 to cover from upper direction is formed.

  With this configuration, when the door 6 is attached to the upper surface opening 5 of the heat insulation box 20, first, the hinge portion 31 on one side of the second door body 26 is attached to the heat insulation box 20. The hook-and-loop fastener 31 </ b> C of the fin portion 31 </ b> A located outside the second door body 26 is matched with the hook-and-loop fastener attached to the upper end of the outer surface of the outer box 21 of the heat insulating box 20. And the surface fastener 31D of the fin part 31B located inside is matched with the surface fastener attached to the inner surface 22 inner surface upper end of the heat insulation box 20. Thereby, the 2nd door body 26 can be opened and closed rotatably about the said hinge part 31. As shown in FIG.

  The second door body 26 is closed, and the hinge portion 30 on one side of the first door body 25 is attached to the heat insulating box body 20. In this case as well, the hook-and-loop fastener 30C of the fin portion 30A is matched with the hook-and-loop fastener at the upper end of the outer surface of the outer box 21, and the hook-and-loop fastener 30D of the fin portion 30B is matched with the hook-and-loop fastener at the upper end of the inner surface of the inner box 22. Thereby, the 1st door body 25 can also be opened and closed rotatably about the said hinge part 30. As shown in FIG.

  Each door body 25, 26 has a hook-and-loop fastener 32A as a holding means for maintaining the closed state on the open side on the other opening / closing side covering portions 32, 33 corresponding to the side on which the hinge portions 30, 31 are provided. , 33A and the hook-and-loop fastener 34 corresponding to the heat insulation box 20 side can be easily attached and detached, and the opening / closing operability can be improved.

  Thereby, the heat insulating material of each door body 25 and 26 which comprises the door 6 is mounted in the paragraph part 24 formed in the upper surface opening 5 of the heat insulation box 20. As shown in FIG. Therefore, it can be set as the structure by which a clearance gap is hard to be formed between the door 6 and the upper surface opening 5 edge, and the inconvenience that the cool air in the storage chamber 4 in the opening 5 edge part leaks later can be suppressed. .

  Moreover, as described above, the door 6 constituted by the plurality of door bodies 25 and 26 has an end portion of one door body 25 at an end of the other door body 26 so that adjacent portions thereof overlap each other. Since the overlapping part 37 which overlaps with the part is formed, leakage of cold air in the adjacent part of the door bodies 25 and 26 can be suppressed.

  Therefore, since the upper surface opening 5 of the heat insulation box 20 is closed in an openable and closable manner by the door 6 having a heat insulating property, the heat insulating property in the storage chamber 4 can be secured, and this embodiment Since the door bodies 25 and 26 constituting the door 6 are constituted by sheet materials 27 and 28 having a heat insulating material, the weight can be significantly reduced as compared with the case of being constituted by a steel plate. Thereby, weight reduction of the whole cooling delivery cart 1 which performs delivery work by hand can be realized, and the opening / closing workability of the door 6 can be improved.

  Further, the sheet materials 27 and 28 constituting the door bodies 25 and 26 are subjected to water-repellent treatment on the surface, and the end portion is outside the paragraph portion 24 and covers the edge portion of the upper surface opening 5. Thus, even when used outdoors, rain or the like can hardly enter the storage chamber 4.

  As described above, since the hinge portions 30 and 31 of the door bodies 25 and 26 are detachable from the heat insulating box body 20, the replacement work of the door bodies can be facilitated. In particular, in this embodiment, when the cooling delivery cart 1 moves on the road or the like, the whole vibrates. However, the hinges 30 and 31 of the door bodies 25 and 26 are attached to the heat insulating box body 20 by hook-and-loop fasteners. Therefore, similarly, the holding means on the open side is constituted by a hook-and-loop fastener, and therefore it can be configured not to be damaged by vibration or impact.

  Further, the opening and closing handles 35 and 36 attached to the outer surfaces of the opening and closing side covering portions 32 and 33 of the door bodies 25 and 26 are made of a cloth such as a chemical fiber such as nylon or polyester. In this case, even if the handles 35 and 36 collide with the surroundings, inconveniences such as damage to the surroundings and the handles 35 and 36 can be avoided. In addition, since the opening / closing handles 35 and 36 can be reduced in weight, there is no hindrance to the opening / closing operation, and the cooling delivery cart 1 as a whole can be reduced in weight.

  Furthermore, in this embodiment, the upper surface opening one side 5A of the heat insulating box 20 corresponding to the side for carrying out the delivery operation of the cooling delivery item in the storage chamber 4 is configured to be lower than the other sides. It is possible to improve the delivery workability.

  Further, as described above, the door 6 is composed of a plurality of door bodies, in the present embodiment, the door bodies 25 and 26 arranged side by side, so that it is delivered only by opening the first door body 25. When delivering an article that can be operated (a relatively small delivery article), only the first door body 25 as shown in FIG. 8 is used without opening the entire door 6 as shown in FIG. The goods can be delivered only by opening them. Therefore, cold air leakage can be suppressed as compared with the case where the entire door 6 is opened and the delivery work is performed.

  At this time, since the second door body 26 is in a state in which the upper surface opening 5 is closed, the upper surface of the door body 26 can be used as a work table. For example, when taking out the cooled delivery item at the lower part of the storage chamber 4, the delivery item stored on the upper side of the storage chamber 4 is placed on the upper surface of the closed door body 26 without being placed directly on the ground. It is possible to take out the article. It is possible to improve the take-out workability without polluting the delivery items.

  Next, the configuration of the cooling device R that cools the interior of the storage chamber 4 to a predetermined temperature will be described with reference to FIGS. 9 to 12. 9 is a partially cutaway perspective view showing the internal structure of the heat insulation box 20, FIG. 10 is a perspective view of the machine room 7, FIG. 11 is a plan view of the machine room 7, and FIG. 12 is a right side view of the machine room 7. Show.

  A cold air duct member 41 extending vertically is provided on the surface of the heat insulating box 20 constituting the storage chamber 4 on the side where the handle 14 is provided, that is, substantially in the center of the front inner wall surface. In this embodiment, the cold air duct member 41 has a substantially rectangular shape in which the width dimension is smaller than the width dimension of the front inner wall surface by a predetermined dimension.

  A cold air inlet 43 is formed at the upper center of the surface of the cold air duct member 41 on the side of the storage chamber 4 (the surface facing the rear surface of the heat insulating box 20), and the storage chamber 4 of the cold air inlet 43 is formed. A fan guard 44 protruding to the storage chamber 4 side is attached to the side surface.

  A plurality of cold air discharge ports 45 are formed in the lower part of the surface of the cold air duct member 41 on the storage chamber 4 side, and both sides of the cold air duct member 41 are substantially omitted from the lower part. Auxiliary cold air discharge ports 46, 46 are formed over the center (predetermined) height.

  In the cold air duct member 41, an evaporator 40 constituting the cooling device R is provided vertically, and a blower 42 for circulating cold air is disposed. A drain pan 47 that is located below the evaporator 40 and receives drain water from the evaporator 40 is disposed at the bottom of the cold air duct member 41, and a drain port formed in the drain pan 47 has a machine room. A drain hose 48 drawn out to the outside through 7 is connected.

  On the other hand, a base leg portion 50 having a predetermined height and defining the machine room 7 of the cooling storage 3 is attached to the bottom surface of the heat insulating box 20. The pedestal 50 has a width dimension substantially the same as the platform 11 of the carriage 2, is placed on the platform 11 of the carriage 2 as described above, and is fixed by the fixture 15.

  Here, as shown in the bottom view of the loading platform 11 in FIG. 13, the bottom surface of the loading platform 11 has a plurality of protrusions (projections) 16... A plurality of protrusions (projections) 17... Are formed at predetermined intervals while being formed. For this reason, a plurality of rectangular recesses 18 are formed on the bottom surface of the cargo bed 11 because the lattice-shaped protrusions are formed.

  The fixture 15 in the present embodiment is formed by bending a steel plate material along the lower side surface of the base leg portion 50 and the loading platform 11, and at the lower end thereof, the substantially center of the bottom surface of the loading platform 11. The shape of the recess 18 located on the side portion and a folded portion 15A that can be inserted almost exactly are formed.

  Therefore, when the pedestal 50 is fixed to the carriage 2, first, the pedestal 50 of the cooling storage 3 is placed at a predetermined position of the loading platform 11 of the carriage 2. Then, the folded portion 15A of the fixture 15 is inserted into the recess 18 on the bottom surface of the cargo bed 11 corresponding to the predetermined mounting position, and the fixture 15 is applied to the side surface of the cargo bed 11 and the side surface of the pedestal portion 50. The pedestal 50 and the fixture 15 are fixed with screws. The fixture 15 is attached to the left and right of the loading platform 11 in this way.

  Thereby, the fixture 15 which fixes the base leg part 50 of the cooling store | warehouse | chamber 3 and the loading platform 11 of the trolley | bogie 2 is between the at least one pair of protrusions which form the recess 18, and in this embodiment, the traveling direction of the trolley 2 The loading platform 11 and the pedestal 50 are fixed by the vibration generated during movement by being fitted between the projections 17, 17 located between the projections 17, 17 and between the projections 16, 16 located on the left and right in the traveling direction of the carriage 2. It is possible to eliminate the inconvenience that the mounting position of the fixing tool 15 is shifted. Thereby, it becomes possible to realize a stable delivery operation by the cooling delivery cart 1.

  Further, as described above, since the cooling storage 3 has a width dimension substantially equal to that of the loading platform 11 and is fixed on the loading platform 11, the loading platform 11 is secured by the simple fixing tool 15 employed in the present embodiment. It becomes possible to fix the cooling storage 3 to the.

  The front and rear side surfaces formed by the pedestal 50 fixed to the carriage 2 as described above are covered with the front panel 51, the rear panel 52, and the side panels 53 and 53. Thereby, the machine room 7 is formed below the heat insulating box 20.

  On the bottom surface of the pedestal 50, a unit base located on the bottom surface of the machine room 7 is disposed. In the present embodiment, the unit base includes a first unit base plate 55 disposed on the front portion of the machine room 7, that is, on the handle 14 side of the machine room 7, and the first unit base plate 55. The second unit base plate 56 is separated and disposed on the rear part of the machine room 7, that is, on the side opposite to the handle 14 side of the machine room 7 (the front side in the traveling direction).

  Here, on the second unit base plate 56 disposed on the side opposite to the handle 14 side, a condenser 58 and condenser fans 59 and 59 that constitute the cooling device R together with the evaporator 40 are disposed. ing.

  The first unit base plate 55 disposed on the handle 14 side includes a compressor 57 and a decompression means 60 that constitute the cooling device R together with the evaporator 40 and the condenser 58, such as the evaporator 40 and the condenser. The components of the cooling device R other than 58 are disposed, and the electrical equipment box 61 and storage batteries 70 and 71 which will be described in detail later are disposed.

  At this time, the devices placed on the first unit base plate 55 are arranged so that the left and right weights are substantially equal when viewed from the handle 14 side. In the present embodiment, since the compressor 57 and the storage batteries 70 and 71 are relatively heavy devices, they are arranged separately on the left and right when viewed from the handle 14 side. And the 1st unit base board 55 is formed with 55 A of through-holes corresponding to the downward direction of the compressor 57 (FIG. 10).

  Then, the compressor 57, the condenser 58, the decompression means 60, the evaporator 40 in the storage chamber 4 and the like disposed in the machine chamber 7 are sequentially connected by the refrigerant pipe 62 to constitute an annular refrigeration cycle. .

  The storage batteries 70 and 71 can be easily inserted into and removed from the front side of the cooling delivery cart 1 on the front panel 51 of the machine room 7 located on the first unit base plate 55 side where the storage batteries 70 and 71 are disposed. An opening 63 is formed, and the opening 63 is closed by a steel plate door 64 that can be pivoted about one side. In the figure, reference numeral 65 denotes a magnet (holding means) for detachably holding the door 64 in an opened state.

  A plurality of suction holes 52 </ b> A facing the condenser 58 are formed in the rear panel 52 of the machine room 7 located on the second unit base plate 56 side where the condenser 58 is disposed. A plurality of blowout holes 53 </ b> A are formed in the side panels 53, 53 that close both side surfaces of the machine room 7 by cutting and raising.

  As a result, the operator stands on the front surface of the cooling delivery cart 1, grasps the handle 14 and pushes it forward to move, so that outside air efficiently enters the machine room 7 from the suction hole 52 </ b> A located on the front side in the traveling direction. Then, after the condenser 58 and the compressor 57 are cooled, waste heat is discharged from the blowout holes 53 </ b> A formed in the side panel 53. Therefore, the inconvenience that the waste heat in the machine room 14 is blown to the operator who operates the handle 14 can be solved.

  In the present embodiment, among the devices disposed in the machine room 7, a relatively heavy compressor 57 and storage batteries 70 and 71 are disposed on the handle 14 side, and a large and relatively light condenser 58 is provided. By disposing on the side opposite to the handle 14 side, the weight on the handle 14 side of the cooling delivery cart 1 is disposed so as to be heavier than the opposite side of the handle 14, that is, the front side in the traveling direction in the hand pushing operation. can do.

  Therefore, when the cooling delivery cart 1 is pushed over the step in the manual push operation, the handle 14 side is pushed down, and the wheel 12 located at the end opposite to the handle 14 (the front end in the traveling direction) is lifted up easily. You can climb a step. Thereby, if there is a slight level difference, it is possible to get on and proceed without taking a detour, and it is possible to improve operability.

  In addition, as described above, the devices arranged on the first unit base plate 55 are arranged so that the weights on the left and right sides are substantially equal when viewed from the handle 14 side. The inconvenience of falling can be prevented.

  Furthermore, in this embodiment, the unit base disposed on the bottom surface of the machine room 7 includes the first unit base plate 55 on which the compressor 57 and the storage batteries 70 and 71 are disposed, the condenser 58 and the like. Since the second unit base plate 56 is provided separately, the weight of the unit base can be reduced. This makes it possible to reduce the weight of the entire cooling delivery cart 1.

  In particular, in the present embodiment, since the first unit base plate 55 is formed with a through hole 55A corresponding to the lower side of the compressor 57, the first unit base plate 55 is provided with the first unit as much as the through hole 55A is formed. The weight of the base plate 55 can be reduced. This can also contribute to the realization of weight reduction of the cooling delivery cart 1 as a whole.

  On the other hand, a drain pan 47 for receiving drain water from the evaporator 40 disposed in the storage chamber 4 as described above is provided on one side, in this embodiment, on the handle 14 side (cooling delivery cart 1) as shown in FIG. It is formed with a low slope toward the right side when viewed from the front side. A drain port (not shown) is formed at the lowermost part, and one end of a drain hose 48 is connected to the drain port. A through hole 20A that penetrates the heat insulating box 20 is formed on the bottom surface of the heat insulating box 20 located below the drain outlet, and a drain hose 48 is inserted therethrough.

  On the other hand, on the handle 14 side of the machine room 7, that is, on the front side of the cooling delivery cart 1, a drain socket 67 is provided between the handle 14 and the cooling storage 3 to constitute a drain port for drain water. . The drain socket 67 is attached to one side of the front panel 51, which is located on the right side from the front in this embodiment, and one end of the drain socket 67 is substantially flush with the side end surface of the carriage 2. The other end passes through a through hole 51 </ b> A formed in the front panel 51 and faces the machine chamber 14.

  The drain socket 67 is configured such that both ends communicate with each other, and an end opening located outside is closed by an opening / closing lid 68 so as to be opened and closed.

  The drain hose 48 inserted through the through hole 20 </ b> A is provided meandering in the machine chamber 7, and its end is connected to the drain socket 67. At this time, the drain hose 48 is disposed so that the end connected to the drain socket 67 is the lowest, and the drain pan 47 is not configured by the drain hose 48 in the machine room 7. It is assumed that they are arranged meandering so as to be sequentially lowered from the end connected to the.

  As a result, when starting from the delivery base and being delivered and collected, the drain water from the evaporator 40 is discharged from the drain pan 47 by closing the open / close lid 68 of the drain socket 67. Thereafter, the inside of the machine chamber 7 can be stored in a drain hose 48 provided meandering.

  When draining, such as when returning to a delivery base or the like, drain water received in the drain hose 48 is discharged by arbitrarily opening the opening / closing lid 68 closing the drain socket (drain port) 67. It becomes possible. In particular, in the present embodiment, the drain hose 48 disposed meandering in the machine room 7 is disposed so as to be sequentially lowered from the end connected to the drain pan 47. The disadvantage that water remains in the drain hose 48 can be suppressed.

  Therefore, in the movable delivery cart 1 that is movable, the inconvenience that the drain water received in the drain pan 47 scatters into the storage chamber 4 due to vibration generated during the movement and stains the delivery items and the like can be solved. Moreover, since it can drain arbitrarily, the improvement of convenience can be aimed at.

  Further, in the drain hose 48 communicating with the inside of the storage chamber 4 through the drain pan 47, it is possible to suppress the inconvenience that the cold air in the storage chamber 4 leaks to the outside by storing drain water.

  Further, since the drain socket (drain port) 67 is provided on the handle 14 side, the opening / closing lid 68 that closes the drain socket 67 may come into contact with the drain socket 67 when it is moved, etc. The inconvenience that drain water in the hose 68 leaks to the outside can be solved.

  Next, the storage batteries 70 and 71 that constitute the cooling device R together with the compressor 57 and the like will be described with reference to FIGS. 15 and 16 in addition to FIGS. FIG. 15 is a partially enlarged perspective view of the machine room 7 in which the storage batteries 70 and 71 are enlarged, and FIG. 16 is a partially enlarged perspective view of the machine room 7 when the storage batteries 70 and 71 are seen from the rear.

  In the present embodiment, the storage battery for supplying power to the compressor 57, the cool air circulation fan 42, the condenser fans 59, 59, etc. employs a lithium ion battery that can be charged and discharged. In the example, two storage batteries 70 and 71 are detachably disposed in the machine room 7. In the figure, 70A and 71A are grip portions of the storage batteries 70 and 71, respectively.

  In the machine room 7, storage units 72 and 73 that can store the respective storage batteries 70 and 71 are disposed. The storage portions 72 and 73 have a rectangular shape that opens to the front, in the present embodiment, on the handle 14 side, and the storage batteries 70 and 71 can be inserted and removed through the opening. The storage units 72 and 73 are disposed at positions corresponding to the openings 63 formed in the front panel 51 as described above, and the storage unit 72 is opened by opening the door 64 that closes the openings 63. , 73 face the front.

  In the inner part of the storage parts 72 and 73, connection parts 74 and 74 for electrically connecting the stored storage batteries 70 and 71 and other devices such as the compressor 57 are provided.

  The storage portions 72 and 73 are fixed on the first unit base plate 55 constituting the bottom surface of the machine chamber 7 by a front mounting member 75 and a rear mounting member 76 that support the front end (the handle 14 side). Yes.

  A storage portion support surface 75A formed lower on the upper end of the front mounting member 75 toward the rear (in the direction opposite to the handle 14) is configured to be higher than the storage portion support portion 76A of the rear mounting member 76 by a predetermined dimension. ing. In front of the front mounting member 75, stoppers 77 and 77 are provided in front of the stored storage batteries 70 and 71, respectively, and can be stored downward.

  As shown in FIG. 15, the stopper 77 is constantly biased upward by a biasing member (spring member) 77A, and the stopper 77 is biased to the front end of the stopper 77 by the biasing force of the biasing member 77A. An operation lever 77B that pushes down the stopper 77 against the above is provided. FIG. 15 shows a state in which the stopper 77 is pushed up by the biasing member 77A on the storage battery 70 side, and a state in which the stopper 77 is pushed down by the operation lever 77B on the storage battery 71 side.

  In addition, a power supply socket 78 for supplying power to the storage batteries 70 and 71 is provided on the front surface (the handle 14 side) of the front mounting member 75. A lid member 79 that can be freely opened and closed is attached to the power supply socket 78.

  As shown in FIG. 16, the lower ends of rear walls (surfaces opposite to the handle 14) 72A and 73A of the storage portions 72 and 73 supported by the storage portion support portion 76A of the rear mounting member 76 are the storage portion 72. 73, a position higher than the rear end 73B of the side wall by a predetermined dimension.

  With this configuration, the storage portions 72 and 73 fixed by the front mounting member 75 and the rear mounting member 76 are lowered in the direction in which the storage batteries 70 and 71 are inserted, that is, from the handle 14 side toward the opposite direction. The storage batteries 70 and 71 are held in an inclined state.

  A rail portion 80 made of, for example, silicon is laid on the bottom surfaces of the storage portions 72 and 73 to slide the storage batteries 70 and 71 in the front-rear direction, that is, the insertion direction.

  With this configuration, when the storage battery 70 is mounted in the storage portion 72, the door 64 provided on the front panel 51 is opened, the operation lever 77B is lowered to release the stopper 77 on the mounting side, and the storage battery 70 is stored. Inserted from the front end (handle 14 side) opening of the portion 72 toward the rear.

  At this time, since the rail portion 80 is laid on the bottom surface of the storage portion 72, the storage battery 70 can be slid and inserted, and the mounting operation can be facilitated. Regardless of the shape of the storage battery 70, the storage battery 70 can be stably held by the rail portion 80.

  Further, as described above, the storage unit 72 holds the storage battery 70 in an inclined state so that the direction in which the storage battery 70 is inserted is lowered by the front mounting member 75 and the rear mounting member 76. Thus, the connection portion 74 provided in the storage portion 72 is pressed. Thereby, the improvement of the contact property of the storage battery 70 and the connection part 74 can be aimed at. In addition, the storage battery 70 can be stably held in the storage unit 72, and the inconvenience of the storage battery 70 falling off from the storage unit 72 can be prevented. Further, by releasing the operation lever 77B, the stopper 77 is urged upward by the urging force of the urging member 77A, and the front end of the storage battery 70 accommodated in the accommodating portion 72 is moved to the front side (the handle 14). Side) can be solved.

  And as mentioned above, the lower end of the rear wall (surface opposite to the handle 14) 72A is the side wall of the rear end of the storage portion 72 that holds the storage battery 70 in an inclined manner so that the inserting direction becomes lower. Since the position is higher than the rear end by a predetermined dimension, a drain hole 81 is formed at the rear lower end (lower part on the opposite side of the handle 14) of the storage portion 72 held inclined. (FIG. 16).

  Therefore, the cooling delivery cart 1 is used outdoors such as on the road, and even when rain or the like has entered the storage unit 72 of the storage battery 70, the water stored in the storage unit 72 is stored in the storage unit 72. The water can be smoothly discharged from the drain hole 81 formed at the lowest position of the portion 72.

  In particular, since the drain hole 81 is formed below the connection portion 74 that electrically connects the storage battery 70 and other devices, the water that has entered the storage portion 72 is inconvenient to the connection portion 74. Can be prevented.

  And when taking out the storage battery 70 from the accommodating part 72, the operation lever 77B is pushed down, and it pulls out the storage battery 70 ahead (the handle 14 side). Also in this case, since the rail portion 80 is laid on the bottom surface of the storage portion 72, the storage battery 70 can be easily pulled out from the storage portion 72.

  In addition, although the removal | desorption work of the storage battery 70 is demonstrated here, it is the same also about the storage battery 71. FIG.

  A control panel 85 is provided at a position on the handle 14 side of the cooling storage 3 constituting the cooling delivery cart 1 in the present embodiment, that is, on the front upper portion, at a position where the operator who operates the handle 14 can easily see. As shown in the enlarged view of FIG. 17, the control panel 85 is provided with a temperature display 86 for displaying the temperature in the storage chamber 4 at the center. An operation display lamp 88 for displaying the presence, a holiday setting switch 89, and a holiday display lamp 90 for displaying that the holiday is set are provided on the left side of the temperature display portion 86 to perform holiday setting to be described later. Yes. Also, on the lower side of the temperature display unit 86, a battery remaining amount display unit 91 that displays the remaining battery amount of the storage batteries 70 and 71 constituted by a plurality of display lamps, and a charging display lamp that displays that charging is in progress. 92 is provided. In addition, 8 shown in each figure is the bumper attached to the front direction corner part of the advancing direction of the cooling delivery cart 1, ie, the rear corner part of the cooling storage 3, over the top and bottom.

  Next, with reference to the electric block diagram of FIG. 18, the control apparatus 93 of the cooling delivery cart 1 in the present embodiment will be described. In addition, a charger 110 that charges the storage batteries 70 and 71 of the cooling delivery cart 1 on a delivery base will be described.

  First, the cooling delivery cart side control device 93 will be described with reference to the right diagram of FIG. The control device 93 is configured by a general-purpose microcomputer and is disposed on the control board 94. The control board 94 is connected to the display / operation switch board 85A of the control panel 85 as described above.

  The control device 93 is connected to the input side via a temperature sensor (temperature detection means) 95 for detecting the temperature in the storage chamber 4 and the connection portions 74 of the storage portions 72 and 73 as described above. The communication lines 96 and 97 of the storage batteries 70 and 71 (here, the storage battery 70 is demonstrated as a 1st storage battery. The storage battery 71 is demonstrated as a 2nd storage battery) are connected. Each of the storage batteries 70 and 71 includes a microcomputer (storage battery side control device) 70M and 71M that holds data related to the remaining battery capacity and the number of times of charging. 97 is connected to the microcomputers 70M and 71M. A cool air circulation blower 42, a compressor 57, and a condenser blower 59 are connected to the output side of the control device 93.

  The wiring 98 for charging the first storage battery 70 and discharging from the storage battery is connected to the power supply socket 78 for connecting to the charger 110, the control device 93, and the changeover switch 99, respectively. The wiring 100 for charging the second storage battery 71 and discharging from the storage battery is connected to the power supply socket 78 that connects to the charger 110, the control device 93, and the changeover switch 99, respectively.

  Further, a power supply socket 78 for connecting to the charger 110 and a wiring 101 connected to the control device 93 are connected to the changeover switch 99. The change-over switch 99 is the first storage battery 70 or the second storage battery 71 as a power source for supplying power to the blower 42 for cold air circulation, the compressor 57, and the blower 59 for condenser as described above. This switch is used to switch the device 110 and is switched by the control device 93. The cool air circulation blower 42 is ON / OFF controlled by a switch 102 controlled by a control device 93, and the compressor 57 and the condenser blower 59 are ON / OFF controlled by a switch 103 controlled by the control device 93. Is done.

  In addition, a communication line 104 is connected to the control device 93 in order to communicate with the control device 111 of the charger 110 via the power supply socket 78.

  Next, the controller 111 on the charger 110 side will be described with reference to the left diagram of FIG. The control device 111 is constituted by a general-purpose microcomputer and is disposed on the control board 112. A control panel display / operation switch board 113 (not shown) is connected to the control board 112.

  The charger 110 is provided with a charging board 115 and a switching power supply 116, which are connected to an AC 100V power plug 117. The charging board 115 includes a charging wiring 119 to the first storage battery 70 and a charging wiring 120 to the second storage battery 71 via the changeover switch 118 provided on the control board 112. A power supply plug 121 is detachably attached to the power supply socket 78. The change-over switch 118 is a switch that switches between connection to the first storage battery 70 and connection to the second storage battery 71, and is switch-controlled by the control device 111.

  The switching power supply 116 is connected to the power supply plug 121 through a wiring 122 in which a switch 123 is provided, with AC 100V being a predetermined DC voltage. The switch 123 is ON / OFF controlled by the control device 111.

  In addition, a communication line 124 is connected to the control device 111 in order to communicate with the control device 93 on the cooling delivery cart 1 side via the power supply plug 121.

  With this configuration, when the power supply plug 121 of the charger 110 is connected to the power supply socket 78 of the cooling delivery cart 1, the charging wiring 119 to the first storage battery 70 is connected to the first storage battery 70. The charging wiring 120 to the second storage battery 71 is connected to the wiring 100 connected to the second storage battery 71. And the wiring 122 from the switching power supply 116 is connected to the wiring 101 connected to the cool air circulation blower 42, the compressor 57, etc. via the changeover switch 99, and the communication connected to the control device 111 on the charger 110 side. The line 124 is connected to the communication line 104 connected to the control device 93 on the cooling delivery cart 1 side.

  Next, a series of operations with the above configuration will be described. In this embodiment, a case will be described in which delivery (collection / delivery) of articles within a predetermined range is performed by the cooling delivery cart 1. First, in the delivery base, it is assumed that the cooling device R of the cooling delivery cart 1 is operated in advance to cool the interior of the storage chamber 4 to a predetermined cooling temperature from a predetermined time before departure. At this time, as will be described in detail later, when the power supply plug 121 of the charger 110 is connected to the power supply socket 78, the compressor 57 and the like constituting the cooling device R are driven by the power supply from the charger 110. Shall.

  Then, on the delivery base, the cooling delivery article is loaded in the storage chamber 4 and starts. Here, when the power supply plug 121 of the charger 110 is removed from the power supply socket 78 of the cooling delivery cart 1, the control device 93 connects the changeover switch 99 to the first storage battery 70 from the side of the wiring 101 connected to the charger 110. Switching to the wiring 98 on the side or the wiring 100 on the second storage battery 71 side and operating the compressor 57 of the cooling device R, the cooler circulation fan 42, the condenser fan 59, etc. by discharging from either the storage battery 70 or 71 To do.

  At this time, in a state where the storage batteries 70 and 71 are connected to the connection portions 74 and 74, data on the remaining amount of the storage battery is communicated to the control device 93 from the microcomputers 70 </ b> M and 71 </ b> M via the communication lines 96 and 97. Has been. Therefore, the control device 93 switches the changeover switch 99 to the smaller storage battery side in order to cause the storage battery 70, 71 having the smaller remaining battery capacity to discharge first. Here, as an example, the case where the first storage battery 70 has less battery power than the second storage battery 71 will be described as an example.

  The control device 93 switches the changeover switch 99 to the wiring 98 on the first storage battery 70 side. As a result, the compressor 57, the cool air circulation blower 42, and the condenser blower 59 are driven by the discharge from the first storage battery 70.

  When driving of the compressor 57 is started, the high-temperature and high-pressure gas refrigerant discharged from the refrigerant pipe on the discharge side of the compressor 57 flows into the condenser 58. Here, the sufficiently condensed and liquefied refrigerant is decompressed by the decompression means 40 and then flows into the evaporator 40. And the refrigerant | coolant which flowed into the evaporator 40 installed in the cold air | gas duct member 41 evaporates, takes heat from the circumference | surroundings, and exhibits a cooling effect | action.

  When the cool air circulation blower 42 disposed in the cool air duct member 41 is operated, the air sucked into the cool air duct member 41 from the cool air suction port 43 formed in the upper part of the cool air duct member 41 is evaporated. After being cooled by exchanging heat with the vessel 40, the air is blown into the storage chamber 4 from the cold air discharge ports 45 and 46 formed in the lower part of the cold air duct member 41 and on both side surfaces.

  Here, in the case where almost one full delivery product is stored in the storage chamber 4, the delivery product is arranged close to the cold air duct member 41. Even in this case, since the fan guard 44 that protrudes toward the storage chamber 4 is attached to the cold air suction port 43 as described above, the cold air in the storage chamber 4 can be supplied from the cold air suction port 43 without any problem. The air can be sucked into the duct member 41.

  In addition, the cold air duct member 41 has auxiliary cold air discharge ports 46 and 46 formed on both sides as well as the lower portion of the surface on the storage chamber 4 side. It is possible to prevent the inconvenience of being blocked.

  Then, the control device 93 performs ON / OFF control of the switches 102 and 103 based on the detection output from the temperature sensor 95 that detects the temperature in the storage chamber 4, and the compressor 57, the condenser blower 59, and the cool air circulation use The operation of the blower 42 is controlled. Thereby, the inside of the storage chamber 4 can be smoothly cooled to a predetermined cooling temperature.

  As described above, the compressor 57 driven by the storage batteries 70 and 71 can cool the interior of the storage chamber 4 to a predetermined temperature, and the delivery article is delivered to the delivery destination by pushing the handle 14 while maintaining the predetermined cooling state. It becomes possible to do.

  For this reason, even in alleys and buildings where vehicles cannot enter, it is possible to deliver delivery items while maintaining such a cooling state. Quality degradation can be avoided. By using the cooling delivery cart 1 to collect and deliver collection / delivery articles from the collection / delivery destination, an increase in storage temperature during collection / delivery can be avoided.

  Thereby, a delivery article etc. can be delivered maintaining a fixed temperature, and the reliability at the time of delivery can be implement | achieved.

  And the control apparatus 93 always receives the data regarding the battery remaining amount of a storage battery from the microcomputers 70M and 71M of each storage battery 70 and 71 via the communication lines 96 and 97, and the 1st storage battery currently discharged | emitted. When the battery voltage of 70 falls below the predetermined use limit remaining capacity value, it is determined that the remaining battery capacity of the first storage battery is exhausted, and the changeover switch 99 is switched from the wiring 98 side on the first storage battery 70 side to the second. Switch to the wiring 100 on the storage battery 71 side. As a result, the compressor 57, the cool air circulation blower 42, and the condenser blower 59 are continuously driven by the discharge from the second storage battery 70.

  Further, the control device 93 turns on the operation display lamp 88 while the cooling delivery cart 1 is in operation, and displays the temperature detected by the temperature sensor 95 on the temperature display unit 86 of the control panel 85. And the battery remaining amount display part 91 comprised by several lamps changes the lamp which lights the remaining amount according to the battery remaining amount which combined the 1st storage battery 70 and the 2nd storage battery 71. Display by number.

  Then, when the delivery / collection work by the cooling delivery cart 1 is completed, it returns to the delivery base. Thus, in the present embodiment, the control device 93 drives the compressor 57 and the like by the discharge from any one of the storage batteries 70 or 71, and discharges the storage battery with the smaller remaining battery first. Therefore, one of the storage batteries can be used preferentially to drive the compressor 57 and the like.

  Therefore, when only one storage battery with the lower battery level is used and one delivery operation is completed and returned to the delivery base, the other fully charged storage battery is left as it is, and the battery with a lower battery level is left. Only the fully charged storage battery can be exchanged for the next delivery operation. As a result, after returning to the delivery base, replace the fully charged storage battery only with the storage battery with the lower remaining battery capacity, or with the storage battery that has been fully discharged (set to a state that is equal to or less than the predetermined use limit remaining capacity value). With only two fully charged storage batteries, the next delivery operation can be started. Therefore, even if it is a case where time to charge cannot be taken, the cooling delivery cart 1 can be operated using a storage battery more efficiently.

  Moreover, even if one storage battery is completely discharged during delivery (becomes a state below the predetermined use limit remaining amount value), after that, the compressor 57 and the like that have been continuously discharged by the discharge from the other storage battery Drive can be performed. Thereby, the cooling usable time in the storage chamber 4 can be extended.

  In addition, even if the delivery time is extended without being able to return to the delivery base, by carrying one spare storage battery, the previously discharged storage battery and the fully charged spare storage battery By exchanging, the cooling usable time in the storage chamber 4 can be further extended.

  As a result, the compressor 57 and the like can be driven without requiring charging for a longer time, and the delivery work can be performed for a longer time with a single delivery schedule.

  As described above, when the cooling delivery cart 1 finishes the delivery / collection work and returns to the delivery base, the storage battery is charged. In this case, first, the door 64 provided on the front panel 51 of the cooling delivery cart 1 is opened, and the power supply socket 78 provided facing the outside through the opening 63 is installed on the delivery base and is connected via the power plug 117. The power supply plug 121 of the charger 110 to which AC power is supplied is connected.

  As a result, the communication line 104 of the control device 93 on the cooling delivery cart 1 side and the communication line 124 of the control device 111 on the charger 110 side are connected, and each of the control devices 93 and 111 has the cooling delivery cart 1 connected to the charger 110. Recognize that connected to.

  Then, the control device 93 on the cooling delivery cart 1 side switches the changeover switch 99 to the wiring 101 side connected to the charger 110 side, and the control device 111 on the charger 110 side turns on the switch 123. As a result, the AC power supplied via the power plug 117 is converted into a predetermined DC power by the switching power supply 116, and then the DC power is connected to the wiring 122, the power plug 121, the power supply socket 78, the wiring 101, and the changeover switch. Power is supplied to the compressor 57 and the like through 99. At this time, the compressor 57 and the like are controlled by the control device 93 so that the switches 102 and 103 are switched, and the inside of the storage chamber 4 is cooled to a predetermined temperature. If there is no plan to use after that day, the operation of the compressor 57 and the like of the cooling device R may be stopped by operating the power switch 87.

  The control device 93 on the cooling delivery cart 1 side receives data relating to the remaining battery levels of the first storage battery 70 and the second storage battery 71 transmitted from the microcomputers 70M and 71M via the communication lines 96 and 97, and stores the storage battery 70. Therefore, it is determined whether the remaining battery level is higher in order to charge the storage battery first, whichever is larger among the 71 remaining battery levels. Here, as an example, the case where the first storage battery 70 has been completely discharged (a state equal to or less than a predetermined use limit remaining value) and the second storage battery 71 has been discharged to some extent will be described as an example.

  The controller 93 on the cooling delivery cart 1 side informs the controller 111 on the charger 110 side via the communication line 104, the power supply socket 78, the power supply plug 121, and the communication line 124 that the second storage battery 71 is charged first. Send.

  The control device 111 switches the changeover switch 118 to the second storage battery 71 side to be charged first, and starts charging from the charging board 115. Thus, the AC power supplied through the power plug 117 is converted into a predetermined DC power by the charging board 115, and then the changeover switch 118 in which the DC power is switched to the second storage battery 71 side, The second storage battery 71 is charged via the wiring 120, the power supply plug 121, the power supply socket 78, and the wiring 100.

  And the control apparatus 93 by the side of the cooling delivery trolley | bogie 1 has always received the data regarding a battery remaining charge from the microcomputers 70M and 71M of each storage battery 70 and 71 via the communication lines 96 and 97, and is charging now. When the remaining battery level of the second storage battery 71 reaches a predetermined charging completion value, it is determined that the charging of the second storage battery 71 is completed, and charging is performed to start charging the first storage battery 70 next. Is transmitted to the control device 111 on the device 110 side.

  And the control apparatus 111 switches the changeover switch 118 to the other 1st storage battery 70 side, and starts the charge from the charging board 115. FIG. Thereby, the AC power supplied via the power plug 117 is converted into a predetermined DC power by the charging board 115, and then the changeover switch 118 in which the DC power is switched to the first storage battery 70 side. The second storage battery 70 is charged through the wiring 119, the power supply plug 121, the power supply socket 78, and the wiring 98.

  And the control apparatus 93 by the side of the cooling delivery trolley | bogie 1 has always received the data regarding a battery remaining charge from the microcomputers 70M and 71M of each storage battery 70 and 71 via the communication lines 96 and 97, and is charging now. When the remaining battery level of the first storage battery 70 reaches a predetermined charging completion value, it is determined that the charging of the first storage battery 71 has ended, and the control device 111 on the charger 110 side is informed that charging is to end. Send. The control device 111 stops charging by the charging board 115.

  As described above, in the cooling delivery cart 1 having a function of charging any one of the storage batteries 70 or 71, when charging each storage battery is started, the charge is given priority from the storage battery with the larger remaining battery capacity. Therefore, the storage battery that is fully charged at an early stage can be charged.

  Thereby, the storage battery (the 2nd storage battery 71 received first in this case) fully charged preferentially by the cooling delivery cart 1 can be mounted. Therefore, when leaving for delivery before the first and second storage batteries are fully charged, replace the storage battery with the lower battery capacity with a fully charged storage battery and start delivery for continuous use. The possible time can be lengthened.

  That is, the charging of the second storage battery 71 (the storage battery with the higher remaining battery level at the start of charging) has been completed, and the charging of the first storage battery 70 (the storage battery with the lower remaining battery level at the start of charging) has been completed. Or when the second storage battery 71 (the storage battery with the higher battery level at the start of charging) is about to end and the first storage battery 70 (the lower battery level at the start of charging). If the first storage battery 70 is not fully charged, the first storage battery 70 can be replaced with a fully charged storage battery, so that both storage batteries can be fully charged and can be started for delivery.

  Therefore, it is possible to drive the compressor 57 and the like without requiring charging for a longer time, and it is possible to perform a delivery operation for a longer time with a single delivery schedule.

  In addition, by carrying a fully charged storage battery at the time of delivery, when the storage battery with the lower remaining battery capacity is completely discharged, it is necessary to charge the battery longer by replacing it with the fully charged battery. It is possible to drive the compressor 57 and the like without doing so.

  At the time of charging, the control device 93 determines that charging is complete when the battery voltage of the storage battery being charged reaches a predetermined charging completion value. The storage battery employed in this embodiment has a high charging efficiency with respect to time until it reaches a certain battery voltage from the start of charging, for example, about 95% (predetermined threshold value) of the fully charged battery voltage. It becomes an area. The charging efficiency gradually decreases until the battery voltage reaches the point of full charge from the threshold, for example, about 99% of the battery voltage in a fully charged state (practical battery voltage). Until the battery voltage is fully charged (100%, fully charged battery voltage), the charging efficiency is low.

  Therefore, for example, when charging is performed during business hours, the control device 93 completes charging with a predetermined battery completion value of a practical battery voltage of about 99% of a fully charged battery voltage as a charging completion value. . This makes it possible to start charging the other storage battery (other cooling delivery cart 1) without requiring time to charge the remaining battery voltage of about 1%, and to improve the charging efficiency.

  At this time, the control device 93 receives the data regarding the remaining battery levels of the first storage battery 70 and the second storage battery 71 transmitted from the microcomputers 70M and 71M via the communication lines 96 and 97 along with the start of charging, When determining whether the remaining battery level of any one of the storage batteries 70 and 71 is large, the battery voltage of the storage battery with the larger remaining battery level is lower than the practical battery voltage (charge completion value in this case). When it is a predetermined threshold value, for example, about 95% or more of the fully charged battery voltage, it is determined that the storage battery is in a state close to the fully charged state. Charge the battery with the least amount of battery.

  As an example, the first storage battery 70 has been fully discharged (state below a predetermined usage limit remaining value), and the second storage battery 71 is about 95% of the fully charged battery voltage, that is, the predetermined threshold. A case where the value is equal to or greater than the value will be described as an example.

  In this case, the controller 93 on the cooling delivery cart 1 side determines that the second storage battery 71 is in a state close to a fully charged state, and indicates that the first storage battery 70 is to be charged first. To the control device 111.

  The control device 111 switches the changeover switch 118 to the first storage battery 70 side and starts charging from the charging board 115. Then, when the battery voltage of the first storage battery 70 that is currently charged reaches a predetermined charging completion value (in this case, a practical battery voltage), the control device 93 on the cooling delivery cart 1 side of the first storage battery 70 It is determined that the charging is finished, and then the fact that the charging of the second storage battery 71 in a state approximating the fully charged state is started is transmitted to the control device 111 on the charger 110 side, and the second storage battery 71 is Charge to practical battery voltage.

  Thus, when starting charging, when the battery voltage of the storage battery with the larger remaining battery level is equal to or higher than a predetermined threshold value lower than the charge completion value (in this case, the practical battery voltage), the other storage battery By performing the charge first, the first and second storage batteries can be brought to a battery voltage equal to or higher than a predetermined threshold value at an early stage.

  Thereby, efficient charging can be performed by preferentially charging in a range where charging efficiency is particularly high.

  For example, when charging at night outside business hours, since there are few time restrictions, the control device 93 uses a predetermined charging completion value of about 99% of the fully charged battery voltage. Charging is completed using a fully charged battery voltage higher than the battery voltage as a charge completion value. Thereby, it becomes possible to carry out the cooling operation for a longer time at the time of delivery by charging the storage battery to full charge.

  In addition, the control device 93, according to the schedule stored in the built-in memory, does not store the cooling delivery items in the storage chamber 4 at the end of the predetermined business hours. The operation of the blower 42 for condenser, the blower 59 for condenser, etc. is stopped. Then, when a predetermined time before the start time of the predetermined business hours, the control device 93 transmits to the control device 111 on the charger 110 side that the energization from the switching power supply 116 is started, and thereby the compressor Operation of 57 etc. is started. Thereby, at the time of business hours start, the inside of the storage room 4 can be made into predetermined cooling temperature, and it can use for delivery immediately.

  Further, by operating a holiday setting switch 89 provided on the control panel 85, the energization control to the compressor 57 and the like that is performed a predetermined time before the start time of the predetermined business hours the next day is canceled, and the day after next. The energization control to the compressor 57 and the like can be performed a predetermined time before the start time of the predetermined business hours. As a result, it is possible to avoid the inconvenience that the cooling operation is started in spite of a holiday.

DESCRIPTION OF SYMBOLS 1 Cooling delivery trolley 2 Bogie 3 Cooling storage 4 Storage room 5 Upper surface opening 5A Upper surface opening one side 6 Door 7 Machine room 11 Loading platform 12 Wheel 13 Bogie main body 14 Handle 15 Fixing tool 16, 17 Projection 18 Depression 20 Heat insulation box 23 Low part 25, 26 Door body 27, 28 Sheet material 30, 31 Hinge part 30C, 31C, 30D, 31D Surface fastener (attachment means)
32, 33 Opening / closing side covering portion 32A, 33A, 34 Surface fastener (holding means)
35, 36 Opening / Closing handle 37 Overlapping part 40 Evaporator 41 Cold air duct member 42 Cooling air circulation fan 43 Cold air inlet 45, 46 Cold air outlet 47 Drain pan 48 Drain hose 50 Base leg part 55 First unit base plate (unit base) )
56 Second unit base plate (unit base)
57 Compressor 58 Condenser 59 Blower for condenser 64 Door 67 Drain socket (drain)
68 Open / close lid 70, 71 Storage battery 70A, 71A Handle part 70M, 71M Microcomputer (storage battery side control device)
72, 73 Storage part 73B Side wall rear end 74 Connection part 78 Power supply socket 80 Rail part 81 Drain hole 85 Control panel 91 Battery level display part 93 Control device (cooling delivery cart side)
94 Control board 95 Temperature sensor (temperature detection means)
96, 97, 104, 124 Communication line 98, 100, 101, 122 Wiring 99 Changeover switch 102, 103, 123 Switch 110 Charger 111 Control device (charger side)
112 Control board 113 Display / operation switch board 115 Charging board 116 Switching power supply 117 Power plug 118 Changeover switch 119, 120 Charging wiring 121 Power supply plug

Claims (2)

Traveling wheels,
A handle for pushing,
A heat-insulating box having a storage room for storing delivery articles;
Compressor constituting the refrigeration cycle, a condenser and an evaporator and a cooling device for have a battery for driving said compressor comprising,
The evaporator of the cooling device is installed in the heat insulating box, and the compressor, condenser and storage battery of the cooling device are installed in a machine room configured below the heat insulating box,
The cooling device has a storage part in which the storage battery is detachably stored, and the storage battery is stored in an inclined state so that a direction in which the storage battery is inserted is lowered.
The storage battery is electrically connected to another device via a connection portion provided at the back of the storage portion, and a drain hole is formed below the connection portion. And cooling delivery cart. The cooling delivery cart according to claim 1, wherein a rail portion on which the storage battery slides is laid in the storage portion .

Images