Thermostatic device

Abstract

To provide a thermostatic device which has high cooling efficiency, and facilitates attachment / detachment to / from a cargo chamber integrated vehicle.SOLUTION: A thermostatic device 1 mounted on a cargo chamber integrated vehicle 50 having an air outlet 53 of an air conditioner on a driver's cab 51 includes: a thermostatic chamber 10 which is attachably / detachably arranged on a cargo chamber 55, and is composed of a heat-shielding member 2A having flexibility; a duct 40 whose one end is mounted on the air outlet 53 and the other end is connected to the thermostatic chamber 10; and at least one blocking part 30 which is arranged so as to face at least one opening 58 for a vehicle door arranged in the cargo chamber 55, and blocks an opening 15 in the thermostatic chamber 10. At least the one blocking part 30 includes: a lower side blocking part 32 which is connected to the floor surface 21 of the thermostatic chamber 10 and blocks at least a part on the lower side of the blocking part 30; and an upper side blocking part 31 for openably / closably blocking the opening 15 in the thermostatic chamber 10.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a temperature control device used for vehicles with a cargo compartment such as commercial vans.

Background Art

[0002] Conventionally, a detachable cold storage device used for cargo compartment integrated vehicles such as commercial vans has been known (for example, Patent Document 1). The detachable cold storage device described in Patent Document 1 includes a simple cold storage chamber formed by surrounding the cargo compartment in a cargo compartment integrated vehicle, a door for opening and closing a part of the simple cold storage chamber, and a duct having one end connected to the cold air outlet of the driver's cab and the other end opened into the simple cold storage chamber, and is characterized in that the duct is detachable from the cold air outlet.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, cargo compartment integrated vehicles such as commercial van-type vehicles may be used for the delivery of pharmaceuticals. The above-mentioned conveyance of pharmaceuticals needs to meet the condition that it must be kept cold at 30°C or lower, and a structure for efficiently retaining cold air is required. However, the detachable cold storage device described in Patent Document 1 has a problem that the cooling efficiency is insufficient, such as cold air leaking all at once when the vehicle door and the door of the detachable cold storage device are opened. Hereinafter, a van-type vehicle such as a 1-box vehicle (including a light van), a station wagon, etc. is also referred to as a cargo compartment integrated vehicle, and a vehicle in which a cargo compartment and a driver's cab such as a cold storage vehicle are formed separately is also referred to as a cargo compartment separate type vehicle.

[0005] Therefore, an object of the present invention is to provide a temperature control device with high heating and cooling efficiency and easy attachment and detachment to a cargo compartment integrated vehicle.

Means for Solving the Problem

[0006] (1) The constant temperature device of the present invention provided to solve the above-described problems is a constant temperature device mounted on a cargo compartment integrated vehicle having an air conditioner outlet in the driver's cab, and is detachably arranged in the cargo compartment of the cargo compartment integrated vehicle and is composed of a heat insulating member having flexibility. A constant temperature chamber, a duct having one end attached to the outlet and the other end connected to the constant temperature chamber, and at least one closing portion arranged to face at least one opening for a vehicle door arranged in the cargo compartment and closing the opening in the constant temperature chamber. At least one of the closing portions includes a lower side closing portion connected to the floor surface of the constant temperature chamber and closing at least a part of the lower side of the closing portion, and an upper side closing portion that closes the opening in the constant temperature chamber in an openable and closable manner. It is characterized by that.

[0007] In the above-described constant temperature device, the constant temperature chamber is composed of a heat insulating member having flexibility and is detachable from the cargo compartment of a cargo compartment integrated vehicle (for example, a commercial van type vehicle). Here, the heat insulating member may be formed of, for example, a sheet-like material having a heat insulating effect (for example, one including an air layer or one having an outer surface formed of a reflecting member) and being bendable. Thereby, the above-described constant temperature device can store the removed constant temperature chamber, for example, by folding. Further, in the above-described constant temperature device, since the heat insulating member is formed of a sheet-like member having flexibility, the weight can be reduced, and attachment to and detachment from the cargo compartment and transportation are facilitated.

[0008] Further, in the above-described constant temperature device, since one end of the duct is attached to the outlet and the other end is connected to the constant temperature chamber, the blown air (cool air or warm air) from the outlet is introduced into the constant temperature chamber. Thereby, the above-described constant temperature device can cool or heat the inside of the constant temperature chamber without separately providing a heat exchanger, a compressor, or the like. Therefore, the above-described constant temperature device can reduce costs and can be formed in a lightweight manner, so that transportation is easy.

[0009] Here, the other end of the duct can be connected to various locations in the constant temperature chamber. For example, by connecting it to the front end side of the constant temperature chamber, the length of the duct can be shortened. Further, the above-described constant temperature device includes a closing portion arranged to face the opening for the vehicle door, and the closing portion is connected to the floor surface of the constant temperature chamber and includes a lower side closing portion that closes at least a part of the lower side of the closing portion. Therefore, even when the upper side closing portion is opened, it is possible to prevent the closing portion from being fully opened. As a result, the above-described constant temperature device can prevent the cold air or warm air in the constant temperature chamber from flowing out to the outside all at once when the closing portion is opened. Therefore, the above-described constant temperature device can significantly improve the heating and cooling efficiency. Note that the lower side closing portion is preferably formed at a height that does not obstruct the loading and unloading of luggage. Further, the lower side closing portion may not only be fixed, but may be configured to be openable and closable as needed.

[0010] (2) In the above-described constant temperature device of the present invention, the constant temperature chamber separates the driver's cab and the luggage compartment, thereby shielding the air flow between the driver's cab and the luggage compartment. One end of the duct is arranged so as not to seal the outlet, and it is preferable that both a part of the air on the driver's cab side and a part of the blown air from the outlet are introduced into the duct.

[0011] In the above-described constant temperature device, the driver's cab and the cargo compartment are isolated by the constant temperature chamber, so that the air flow between the driver's cab and the cargo compartment is blocked. Also, one end of the duct is arranged so as not to seal the air outlet of the air conditioner in the driver's cab. Therefore, the driver's cab is isolated from the cargo compartment, and the air from the air outlet is blown out and circulated on the driver's cab side. As a result, the heating and cooling efficiency in the driver's cab is improved. On the other hand, in the constant temperature chamber, both the air (cool air or warm air) in the driver's cab flowing in from the duct and a part of the blown air introduced into the duct flow in, so that the heating and cooling efficiency of the constant temperature chamber is also improved. Furthermore, in the above-described constant temperature device, since the air outlet is not sealed by the duct, the blown air does not rush directly toward the constant temperature chamber side and smoothly flows into the constant temperature chamber. As a result, a further improvement in the cooling efficiency of the constant temperature chamber can be expected. Therefore, it is possible to provide a constant temperature device suitable for transporting at a predetermined temperature (30°C or lower) such as pharmaceuticals. Here, one end of the duct may be connected in a direction intersecting the air outlet, for example, in a direction perpendicular to the upper side of the air outlet. Thereby, the above-described constant temperature device can introduce the blown air into the duct while blowing the blown air toward the driver's cab side.

[0012] (3) In the above-described constant temperature device of the present invention, a back door is provided to be openable and closable at the opening for the vehicle door, the upper side closing portion is connected to the back door, and it is preferable that the upper side closing portion is openable and closable along with the opening and closing of the back door.

[0013] By adopting such a configuration, the above-described constant temperature device can open and close the upper closing portion in synchronization with the back door. As a result, an operator can easily open and close the constant temperature chamber, improving work efficiency. Further, in the above-described constant temperature device, only the upper closing portion is opened when the back door is opened, so the lower closing portion can suppress the outflow of the air (cool air or warm air) in the constant temperature chamber to the outside of the constant temperature chamber. Therefore, the above-described constant temperature device can suppress the rapid increase or decrease in the temperature inside the constant temperature chamber. Here, it is preferable that the back door of the above-described constant temperature device of the present invention is covered with a heat insulating member. Thereby, it is possible to suppress direct irradiation of sunlight or the like onto the constant temperature chamber, so that an improvement in heating and cooling efficiency in the constant temperature chamber can be expected.

[0014] (4) In the above-described constant temperature device of the present invention, the vehicle door opening is provided on at least one side in the lateral direction of the cargo compartment integrated vehicle, and a slide door that can be opened and closed in the vehicle longitudinal direction is provided in the vehicle door opening. The upper closing portion can be opened and closed in the vehicle longitudinal direction, and the front end side of the upper closing portion is connected to the front end side of the slide door. It is preferable that the upper closing portion opens and closes while elastically deforming as the slide door opens and closes.

[0015] In the above-described constant temperature device, since the front end side of the upper closing portion is connected to the front end side of the slide door, the upper closing portion can be opened and closed as the slide door opens and closes. Here, since the upper closing portion has flexibility, it opens and closes while elastically deforming as the slide door opens and closes. As a result, an operator can easily open and close the constant temperature chamber, improving work efficiency. Further, in the above-described constant temperature device, only the upper closing portion is opened when the back door is opened, so the lower closing portion can suppress the outflow of the air (cool air or warm air) in the constant temperature chamber to the outside of the constant temperature chamber. Therefore, the above-described constant temperature device can suppress the rapid increase or decrease in the temperature inside the constant temperature chamber. Here, it is preferable that the slide door of the above-described constant temperature device of the present invention is covered with a heat insulating member. Thereby, it is possible to suppress direct irradiation of sunlight or the like onto the constant temperature chamber, so that an improvement in heating and cooling efficiency in the constant temperature chamber can be expected.

[0016] (5) The above-described constant temperature device of the present invention is characterized in that the constant temperature chamber has a ceiling surface, and the ceiling surface is composed of at least two layers of heat insulating members.

[0017] Since the above-described constant temperature device has a ceiling surface having at least two layers of heat insulating members, it can have a sandwich structure in which an air layer is sandwiched between the heat insulating members. Thereby, the above-described constant temperature device can perform effective heat insulation on the ceiling surface, so that the heating and cooling efficiency can be improved. Here, it is preferable that the above-described constant temperature device is composed of three layers of heat insulating members on the ceiling surface. Thereby, the above-described constant temperature device can have a sandwich structure in which two air layers are sandwiched between heat insulating members on the ceiling surface, so that a further heat insulation effect can be expected. Note that the number of layers of the heat insulating members on the ceiling surface may be set to an appropriate number of layers in consideration of the heat insulation effect, cost, weight, etc.

[0018] (6) The above-described constant temperature device of the present invention is characterized in that the ceiling surface can be suspended and held on the inner surface of the vehicle-side ceiling surface in the cargo compartment integrated vehicle.

[0019] With the above-described configuration, the ceiling surface of the constant temperature device is suspended and held on the inner surface of the vehicle-side ceiling surface. Therefore, even if the ceiling surface is composed of a flexible heat insulating member, the ceiling surface will not sag. Therefore, the above-described constant temperature device can configure a constant temperature chamber using a flexible heat insulating member, and the storage property can be improved.

[0020] (7) The above-described constant temperature device of the present invention is characterized in that the floor surface of the constant temperature chamber is composed of at least two layers of heat insulating members.

[0021] Since the above-described constant temperature device has at least two layers of heat insulating members on the floor surface, it can have a sandwich structure in which an air layer is sandwiched between the heat insulating members. As a result, the above-described constant temperature device can effectively insulate heat on the floor surface, thereby improving the heating and cooling efficiency. Here, the above-described constant temperature device may be configured with three layers of heat insulating members on the floor surface. Thereby, the above-described constant temperature device can have a sandwich structure in which two air layers are sandwiched between heat insulating members on the floor surface, so that a further heat insulating effect can be expected. Note that the number of layers of the heat insulating members on the floor surface may be set to an appropriate number of layers in consideration of the heat insulating effect, cost, weight, etc.

[0022] (8) The above-described constant temperature device of the present invention is preferably characterized in that a ventilation member is laid on the floor surface.

[0023] With the above-described configuration, the above-described constant temperature device can allow air to flow into the floor surface through the ventilation member. That is, since the above-described constant temperature device can provide a space between the floor surface and the load, the ventilation of the floor surface can be improved. As a result, the above-described constant temperature device can improve the heating and cooling efficiency in the constant temperature chamber. Here, the ventilation member is preferably, for example, a sno-cone formed in a mesh shape. Thereby, the above-described constant temperature device can further improve the ventilation and suppress damage to the heat insulating member on the floor surface. In addition, by laying a sno-cone on the floor surface, the above-described constant temperature device can be expected to improve the loading and unloading property of the load and the anti-slip effect of the load during vehicle travel.

[0024] (9) The above-described constant temperature device of the present invention is preferably characterized in that the duct is formed to extend upward along the front pillar on the passenger seat side from the blowout port, and is bent toward the rear side of the vehicle at the upper end of the front pillar on the passenger seat side.

[0025] By adopting such a configuration, the above-described thermostatic device can prevent blocking the driver's view. Here, the duct may be covered with a heat-insulating member around it. Thereby, a further improvement in the heating and cooling efficiency in the above-described thermostatic device can be expected. Further, when an assist grip is provided on the front pillar on the passenger seat side in the above-described thermostatic device, the duct may be fixed using the fixing bolts of the assist grip. Specifically, the assist grip may be removed, and for example, a hook-and-loop fastener may be provided in the bolt fastening hole of the assist grip, and the duct may be fixed by the hook-and-loop fastener. Further, the duct can be provided with a soundproofing material as needed. Thereby, the above-described thermostatic device can suppress noise such as the inflow sound of the air introduced into the duct. Further, the duct may be provided with a filter (for example, a mesh member) at one end on the blowout port side. Thereby, it is possible to prevent foreign matter from entering the thermostatic chamber through the duct.

[0026] Incidentally, in a cargo-compartment integrated vehicle, when a thermostatic device or the like is arranged in the cargo compartment, there is a problem that the view through the rearview mirror is blocked. Therefore, recently, an image of a photographing camera arranged on the rear side of the vehicle is projected onto an electronic inner mirror provided in the driver's cab. However, since the display screen of the electronic inner mirror is formed of transparent glass, resin, or the like, the reflection of surrounding articles may occur. In particular, the heat-insulating member used for the above-described thermostatic chamber is often made of a material that reflects sunlight or the like on the surface side in order to enhance the heat-insulating property. Therefore, when the heat-insulating member provided on the front end side of the electronic inner mirror and the thermostatic chamber are arranged to face each other, there is a problem that the heat-insulating member is reflected and projected onto the electronic inner mirror.

[0027] (10) Therefore, in order to solve the above-described problems, the thermostatic device of the present invention is characterized in that on the side facing the outside of the thermostatic chamber, the heat-insulating member is formed so as to be capable of reflecting light, an electronic inner mirror is arranged at the driver's seat, the photographing camera of the electronic inner mirror is arranged toward the rear side of the vehicle on the rear window in the cargo compartment, and an antireflection material is arranged on the heat-insulating member facing the display surface of the electronic inner mirror.

[0028] In the above-described constant temperature device, since the antireflection material is disposed on the heat insulating member facing the display surface of the electronic inner mirror, it is possible to suppress the reflection (reflection) of the heat insulating member on the electronic inner mirror. Here, the antireflection material may be made of a material with good light absorption, for example, a black sheet material (for example, paper, cloth, resin plate, etc.).

Advantages of the Invention

[0029] According to the present invention, it is possible to provide a constant temperature device with high heating and cooling efficiency and easy attachment and detachment to a cargo compartment integrated vehicle.

Brief Description of the Drawings

[0030]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Embodiments for Carrying out the Invention

[0031] Hereinafter, the thermostatic device 1 according to an embodiment of the present invention will be described in detail with reference to the drawings. Note that each figure is schematically represented for easy understanding, and it should be noted that it may be different from the actual shape, size, and arrangement of components.

[0032] As shown in FIG. 1, the thermostatic device 1 of the present invention is to be mounted on a cargo compartment integrated vehicle 50. In the present embodiment, as the cargo compartment integrated vehicle 50, a one-box type commercial van type vehicle of a light automobile will be described as an example.

[0033] The cab-and-cargo integrated vehicle 50 (also referred to as vehicle 50) is provided with a cab 51 and a cargo compartment 55, and the cab 51 and the cargo compartment 55 are in a communicating state. In the cab 51, there are provided a driver's side door (not shown), a passenger's side door 52 having a side window 62, a plurality of air outlets 53 (only one is shown) related to an air conditioner (not shown), a front pillar 54 (only the passenger's side front pillar 54A is shown), an electronic inner mirror 60, etc.

[0034] The air outlet 53 (see Fig. 9(a)) has movable or fixed fins as appropriate, and can eject cold air or warm air from the air conditioner as blowing air. Although details will be described later, in this embodiment, a duct 40 is connected to the air outlet 53 near the passenger's side front pillar 54A.

[0035] The electronic inner mirror 60 (see Fig. 4) is provided at the upper part of the front window in the cab 51. Also, as shown in Fig. 1, the imaging camera 60A of the electronic inner mirror 60 is arranged toward the rear side of the vehicle on the rear window 59A (back door 59) in the cargo compartment 55. The electronic inner mirror 60 is connected to an appropriate driving power source (not shown), and can display an image of the rear side of the vehicle taken by the imaging camera 60A on the mirror surface formed by a liquid crystal screen or the like.

[0036] The cargo compartment 55 is formed in a rectangular box shape at the rear part of the vehicle, and can detachably accommodate the constant temperature chamber 10 described later. As shown in Figs. 4(a) and 4(b), a plurality of roof louver mounts 56A are provided along the vehicle width direction on the vehicle side ceiling surface 56 in the cargo compartment 55. Also, as shown in Fig. 1, a back door 59 having a rear window 59A is provided on the rear side of the cargo compartment 55. As shown in Fig. 7(b), the back door 59 is arranged in an opening 58 for a vehicle door formed on the rear side of the cargo compartment 55, and is openable and closable in the vehicle vertical direction. On the inner side of the vehicle of the back door 59, a first connecting portion 59B for connecting to a first upper side closing portion 31A (also referred to as the upper side closing portion 31) described later is provided.

[0037] As shown in FIG. 1, slide doors 57, 57 (only one side is shown in the figure) are provided on both sides in the vehicle width direction in the luggage compartment 55. The slide doors 57, 57 are arranged in vehicle door openings 58, 58 (see FIG. 4) opened on both sides in the vehicle width direction of the luggage compartment 55, and are configured to be openable and closable in the vehicle front-rear direction. Slide windows 66, 66 are provided on the slide doors 57, 57. As shown in FIG. 8(a), a plurality of second connection portions 57A for connecting to second upper side closing portions 31B, 31B (also referred to as upper side closing portions 31, 31. Only one side is shown in the figure) described later are provided on the front end side of the slide doors 57, 57.

[0038] As shown in FIG. 2, the thermostatic device 1 includes a thermostatic chamber 10 having a substantially rectangular parallelepiped shape in the assembled state. The thermostatic chamber 10 can be arranged along the inner wall of the luggage compartment 55 (see FIG. 1). In the present embodiment, the thermostatic chamber 10 is assembled inside the luggage compartment 55. The thermostatic chamber 10 includes an upper side main body 11 constituting the upper side and a lower side main body 20 constituting the lower side. The upper side main body 11 and the lower side main body 20 constituting the thermostatic chamber 10 are each composed of a heat insulating member 2A having flexibility and can be folded. Here, the heat insulating member 2A is composed of, for example, a flexible heat insulating material having a reflecting member (glossy member) on the surface. Note that the heat insulating member 2A can be made of an appropriate material depending on the aspect of the luggage compartment 55, such as one having only heat insulating properties or heat insulating properties, or one having both heat insulating properties and heat insulating properties. The thermostatic chamber 10 can be formed by detachably connecting and integrating the upper side main body 11 and the lower side main body 20 with a plurality of surface fasteners 64 or the like.

[0039] The upper side main body 11 is composed of a heat insulating member 2A, and includes upper side side walls 11L, 11R provided on both sides in the width direction, a ceiling surface 11T, an upper side front wall 16, and a plurality of upper side closing portions 31 (three places in the present embodiment) forming a part of the closing portion 30. The upper side main body 11 is formed in a size that can be accommodated in the luggage compartment 55.

[0040] The upper side walls 11L and 11R are formed in a substantially rectangular shape and are formed by being bent downward with respect to the ceiling surface 11T. Note that the upper side walls 11L and 11R may be separately formed, and in such a case, they may be connected with a hook-and-loop fastener 64 or the like. A pair of second upper side closing portions 31B and 31B, which form a part of the closing portion 30, are formed at portions of the upper side walls 11L and 11R that face the vehicle door openings 58 and 58.

[0041] The ceiling surface 11T is formed of a rectangular heat insulating member 2A, and a plurality of through holes 12 are formed therein. In the present embodiment, a first ceiling member 13 formed of a heat insulating member 2C and a second ceiling member 14 formed of a heat insulating member 2D are laminated on the ceiling surface 11T. In the present embodiment, the first ceiling member 13 is formed to be thicker than the ceiling surface 11T and the second ceiling member 14. Here, the heat insulating members 2C and 2D are each formed of a different material in the present embodiment. The heat insulating members 2C and 2D can be formed of a material having either or both of heat insulating properties and heat blocking properties. Further, the heat insulating members 2A, 2B, and 2C may each be formed of the same material, or may each be formed of a different material as in the present embodiment. Further, by making the heat insulating members 2C and 2D have flexibility, the first ceiling member 13 and the second ceiling member 14 can be configured to be foldable. Further, through holes 12 are formed at positions corresponding to the through holes 12 of the ceiling surface 11T in the first ceiling member 13 and the second ceiling member 14, respectively. The ceiling surface 11T, the first ceiling member 13, and the second ceiling member 14 are integrated by, for example, screwing an eyebolt (not shown) into the through holes 12. In other words, the ceiling surface 11T forms a three-layer structure by laminating the first ceiling member 13 and the second ceiling member 14. Further in other words, a two-layer air layer is formed through the gaps between the ceiling surface 11T, the first ceiling member 13, and the second ceiling member 14.

[0042] As shown in Fig. 4(b), the first ceiling member 13 and the second ceiling member 14 are suspended and held by a cable tie 61 attached to the roof inner hose mount 56A. Although details will be described later, the ceiling surface 11T (see Fig. 2) is suspended and held on the vehicle-side ceiling surface 56 of the cargo compartment 55 by connecting to the first ceiling member 13 by means of a cable tie 61 etc. via an eyebolt (not shown) attached to the ceiling surface 11T. Thereby, the ceiling surface 11T composed of the heat-insulating member 2A having flexibility is held on the vehicle-side ceiling surface 56 without sagging. Also, since the roof inner hose mount 56A of the vehicle 50 can be used as it is, there is no need to modify the vehicle 50.

[0043] As shown in Fig. 2, the upper front wall 16 is formed of a substantially rectangular heat-insulating member 2. The upper front wall 16 is formed by folding the front end side of the ceiling surface 11T downward so as to be located on the front end side of the cargo compartment 55 (see Figs. 1 and 4). Note that the upper front wall 16 may be formed separately from the ceiling surface 11T, and in such a case, the upper front wall 16 and the ceiling surface 11T may be connected by a surface fastener 64 or the like. A duct connection port 16A for connecting a duct 40 to be described later is provided at the upper part on the passenger seat side (left side in this embodiment) of the upper front wall 16. Also, the upper front wall 16 is integrated with the lower front wall 23 to be described later and is supposed to separate the driver's cab 51 and the cargo compartment 55. Thereby, the constant temperature chamber 10 can block the air flow between the driver's cab 51 and the cargo compartment 55.

[0044] Also, an antireflection material 63 is disposed at a portion of the upper front wall 16 facing the display surface of the electronic inner mirror 60 (see Figs. 1 and 4). The antireflection material 63 is formed of, for example, a black sheet material (cloth or resin sheet) and can shield the reflective surface (outer surface of the constant temperature chamber 10) of the heat-insulating member 2 (see Fig. 11(b)). Thereby, the antireflection material 63 can suppress the heat-insulating member 2 from being reflected and appearing on the display surface of the electronic inner mirror 60, so that it is possible to suppress the driver's view from being blocked.

[0045] As shown in Fig. 2, the closing part 30 is formed by an upper-side closing part 31 and a lower-side closing part 32 provided on the lower-side main body 20 described later. The closing part 30 is arranged to face the vehicle door opening 58 (see Fig. 6(b)) arranged in the cargo compartment 55, and is supposed to close the openings 15 (in this embodiment, three openings at the rear and both sides) in the constant temperature chamber 10. In the following description, the opening 15 (see Fig. 6(a)) provided on the rear side of the constant temperature chamber 10 may also be referred to as the first opening 15A, and the openings 15 provided on both sides in the width direction of the constant temperature chamber 10 may also be referred to as the second openings 15B, 15B. Also, among the closing part 30, the part that closes the upper side of the first opening 15A will be described as the first upper-side closing part 31A, and the parts that close the upper sides of the second openings 15B, 15B will be described as the second upper-side closing parts 31B, 31B. Also, among the closing part 30, the part that closes the lower side of the first opening 15A will be described as the first lower-side closing part 32A, and the parts that close the lower sides of the second openings 15B, 15B will be described as the second lower-side closing parts 32B, 32B.

[0046] As shown in Figs. 7(a) and 7(b), the first upper-side closing part 31A (also referred to as the upper-side closing part 31) is composed of a heat-insulating member 2A, and can close the first opening 15A (opening 15) facing the cargo compartment surface side of the back door 59 (see Fig. 3). The first upper-side closing part 31A is formed by folding back from the rear side of the ceiling surface 11T downward. Therefore, the first upper-side closing part 31A is made to be openable and closable in the vertical direction. As shown in Fig. 7(b), a band 33 is provided on the lower end side of the first upper-side closing part 31A.

[0047] The tip side of the band 33 is provided with, for example, a buckle (not shown), and is detachable from a first connection portion 59B (see Fig. 12(b), for example, a buckle or the like) provided on the cargo compartment surface side of the back door 59. Therefore, when the back door 59 is opened with the band 33 and the first connection portion 59B connected, as shown in Fig. 7(b), the first upper side closing portion 31A opens as the back door 59 opens. On the other hand, when the back door 59 is closed with the band 33 and the first connection portion 59B connected, as shown in Fig. 3, the first upper side closing portion 31A closes as the back door 59 closes. Note that the connection between the band 33 and the first connection portion 59B may be made as necessary.

[0048] The second upper side closing portions 31B, 31B (also referred to as the upper side closing portion 31) are formed at positions facing the vehicle door openings 58, 58 provided with the slide doors 57, 57 (only one side is shown in the figure), as shown in Fig. 8(a). The second upper side closing portions 31B, 31B are formed by providing cuts in the upper side side walls 11L, 11R in the shape of the slide doors 57, 57, as shown in Fig. 7(a). Specifically, the front end side of the second upper side closing portions 31B, 31B is cut in the vertical direction of the upper side side walls 11L, 11R, and the upper end side is cut in the front-rear direction of the upper side side walls 11L, 11R. Therefore, the second upper side closing portions 31B, 31B can be opened so as to fold back while elastically deforming from the front side to the rear side (see Fig. 8(b)).

[0049] Also, as shown in Fig. 8(a), a plurality of mounting holes 35 are formed along the vertical direction on the front end side of the second upper side closing portions 31B, 31B. Also, a plurality of second connection portions 57A are provided on the front end side of the slide doors 57, 57. By connecting the plurality of mounting holes 35 and the plurality of second connection portions 57A with appropriate connecting means (for example, a string, a cable tie, etc.) as shown by the illustrated arrow, the opening and closing of the second upper side closing portions 31B, 31B can be performed in synchronization with the opening and closing of the slide doors 57, 57. Note that the connection between the second upper side closing portions 31B, 31B and the second connection portions 57A, 57A may be made as necessary.

[0050] As shown in Fig. 2, the lower body 20 is composed of a heat insulating member 2A, and includes a floor surface 21, a first lower closing portion 32A that is connected to the floor surface 21 and forms a lower rear wall, a lower front wall 23, and second lower closing portions 32B, 32B, etc. that are connected to the floor surface 21 and form lower side walls.

[0051] The floor surface 21 is formed in a rectangular shape by the heat insulating member 2A. The floor surface 21 is formed in substantially the same shape as the floor surface 55A (see the enlarged cross-sectional view of Fig. 3) of the cargo compartment 55 and is configured to be placed on the floor surface 55A.

[0052] In the present embodiment, sheet-shaped heat insulating members 2B are laminated in two layers on the floor surface 21 made of the heat insulating member 2A. That is, in the present embodiment, the heat insulating member 2A as the floor surface 21 and the two heat insulating members 2B, 2B are laminated. Therefore, the heat from the floor surface 55A of the cargo compartment 55 is insulated by the three heat insulating members 2A, 2B, 2B, and a further improvement in the heating and cooling efficiency of the constant temperature room 10 can be expected.

[0053] Further, in the present embodiment, a ventilation member 25 (in the present embodiment, a mesh-shaped snowshoe made of resin or the like) is laid on the two heat insulating members 2B, 2B laminated on the floor surface 21. As a result, a space is formed between the floor surface 21 (the two heat insulating members 2B, 2B) and the loaded cargo, thereby forming an air layer, so that the heating and cooling efficiency of the constant temperature room 10 is improved. In addition, since the floor surface 21 does not come into direct contact with the cargo, damage to the floor surface 21 is suppressed. Furthermore, since the ventilation member 25 exhibits an anti-slip function, displacement of the cargo during travel is suppressed and the loading and unloading property of the cargo is improved.

[0054] As shown in Fig. 6(a), the first lower side closing portion 32A is formed of the heat insulating member 2A, and is erected, for example, by folding back the rear end side of the floor surface 21 upward. The first lower side closing portion 32A is set to have a height of about 20 to 30 cm, for example. The first lower side closing portion 32A is configured to close the lower side of the first upper side closing portion 31A when the first upper side closing portion 31A is opened. That is, even when the first upper side closing portion 31A is opened, the first lower side closing portion 32A is configured to close the lower end side of the first opening 15A. Therefore, it is possible to suppress the first opening 15A of the constant temperature chamber 10 from being fully opened at once, and the air flow between the inside and outside of the constant temperature chamber 10 is suppressed. Thereby, the heating and cooling efficiency of the constant temperature chamber 10 is improved. In the present embodiment, the first lower side closing portion 32A can be inverted downward as shown by the arrow in Fig. 6(a). Note that the first lower side closing portion 32A may be fixed in the closed state. Further, the first lower side closing portion 32A is preferably set to a height that does not hinder the unloading work of the operator.

[0055] As shown in Figs. 2 and 8(b), the second lower side closing portions 32B, 32B are formed of the heat insulating member 2A, and are erected by folding back both end sides in the width direction of the floor surface 21 upward. The second lower side closing portions 32B, 32B are formed to extend along the front-rear direction of the cargo chamber 55, and are set to have a height of about 20 to 30 cm, for example. The second lower side closing portions 32B, 32B are configured to close the lower side of the second openings 15B, 15B. That is, even when the second upper side closing portions 31B, 31B are opened, the second lower side closing portions 32B, 32B are configured to close the lower end sides of the second openings 15B, 15B. Therefore, it is possible to suppress the second openings 15B of the constant temperature chamber 10 from being fully opened at once, and the air flow between the inside and outside of the constant temperature chamber 10 is suppressed. Thereby, the heating and cooling efficiency of the constant temperature chamber 10 is improved. In the present embodiment, the second lower side closing portions 32B, 32B are fixed, but the second lower side closing portions 32B, 32B may be configured to be openable by inversion or the like as needed. Further, the second lower side closing portions 32B, 32B are preferably set to a height that does not hinder the unloading work of the operator.

[0056] As shown in FIGS. 9(a) and 9(b), the duct 40 is formed of a bendable hose member (e.g., a bellows hose), and its outer periphery is covered with a heat insulating member 2F. Here, in the present embodiment, the heat insulating member 2F is made of a material different from those of the above-described heat insulating members 2A, 2B, 2C, and 2D. The outer surface of the heat insulating member 2F is formed of a material that reflects sunlight and the like, and can insulate heat from the outside. Note that the heat insulating member 2F can be formed of a material having either or both of heat insulating properties and heat blocking properties, as necessary. In the present embodiment, the heat insulating member 2F is composed of a material different from those of the heat insulating members 2A, 2B, 2C, and 2D, but the heat insulating member 2F may be composed of the same material as those of the heat insulating members 2A, 2B, 2C, and 2D.

[0057] As shown in FIGS. 9(a) and 11(a), one end of the duct 40 is attached to the air outlet 53 near the front pillar 54A on the passenger seat side. In the present embodiment, one end of the duct 40 is attached so as to intersect (orthogonally) the air blowing direction of the air outlet 53 from above the air outlet 53. It is desirable to provide a cushioning material (e.g., EPT seal: registered trademark) at the tip of the air outlet 53 of the duct 40 so as not to damage the instrument panel or the like.

[0058] Further, in the present embodiment, one end of the duct 40 is arranged so as not to seal the blowout port 53. Therefore, it is assumed that both a part of the air on the driver's cab 51 side and a part of the blown air from the blowout port 53 are introduced into the duct 40. Thus, in the present embodiment, since the duct 40 is arranged so as not to seal the blowout port 53, the blown air is smoothly introduced into the constant temperature chamber 10 without being clogged in the duct 40. Further, a cup holder 68 is arranged around the blowout port 53. In the present embodiment, a heat storage material (not shown), for example, is arranged in the cup holder 68. Here, the heat storage material can be constituted by, for example, a frozen plastic bottle containing water or the like, a plastic bottle containing hot water, or an appropriate cold insulation material or heat storage material. Therefore, the heat storage material can cool or heat the air sucked into the duct 40 by the blower fan 41.

[0059] Further, the duct 40 is guided upward from the blowout port 53 and guided to the upper end side of the side window 62 along the front pillar 54A on the passenger seat side. Here, in the present embodiment, as shown in FIG. 10(a), an assist grip 65 is provided on the front pillar 54A on the passenger seat side. Further, in the present embodiment, as shown in FIG. 10(b), hook-and-loop fasteners 64, 64 for attaching the duct 40 (see FIG. 9) are attached using the fixing bolts after removing the assist grip 65. Specifically, the two hook-and-loop fasteners 64, 64 are attached to the bolt fastening holes after removing the assist grip 65. As shown in FIG. 9(a), the duct 40 is fixed along the front pillar 54A on the passenger seat side by the hook-and-loop fasteners 64, 64. Further, the duct 40 is guided to the constant temperature chamber 10 side (rear side) along the upper end of the side window 62. That is, in the present embodiment, the duct 40 is formed so as to extend upward along the front pillar 54A on the passenger seat side from the blowout port 53. Further, the duct 40 is bent and formed toward the rear side of the vehicle at the upper end portion of the front pillar 54A on the passenger seat side.

[0060] On the other end of the duct 40, a blower fan 41 (see Fig. 9(b)) is connected, and through the blower fan 41, the duct 40 is connected to the duct connection port 16A of the constant temperature chamber 10. The blower fan 41 is configured to efficiently guide the blown air from the blowout port 53 into the duct 40. Here, the duct 40 can be provided with a soundproof material as needed. Thereby, the above-described constant temperature device 1 can suppress noises such as the inflow sound of the air introduced into the duct 40. Further, the duct 40 may be provided with a filter (for example, a mesh member) at one end on the blowout port 53 side. Thereby, it is possible to suppress the intrusion of foreign matters into the constant temperature chamber 10 through the duct 40.

[0061] Also, in the present embodiment, as shown in Figs. 12(a) and 12(b), heat insulation members 2E are attached so as to cover the slide windows 66, 66 and quarter windows 67, 67 (see Fig. 1, only one side is shown) on both sides in the width direction of the luggage compartment 55 and the rear window 59A of the back door 59 (see Fig. 1). Here, in the present embodiment, the same material as the above-described heat insulation member 2B is used for the heat insulation member 2E. The heat insulation member 2F is formed of a material whose outer surface reflects sunlight and the like, and can insulate heat from the outside. Thereby, the constant temperature device 1 can suppress the intrusion of sunlight into the luggage compartment 55 and improve the heating and cooling efficiency. Note that the heat insulation member 2F can be formed of a material having either or both of heat insulation properties and heat insulating properties as needed. In the present embodiment, the heat insulation member 2F is configured of a material different from those of the heat insulation members 2A, 2C, and 2D, but the heat insulation member 2F may be configured of the same material as the heat insulation members 2A, 2C, and 2D.

[0062] The above is the configuration of the constant temperature device 1 of the present invention. Next, an example of the work of installing the constant temperature chamber 10 in the luggage compartment 55 will be described.

[0063] First, as shown in FIG. 2, the upper-side main body 11 is assembled into the shape of the cargo compartment 55. At this time, the first ceiling member 13 and the second ceiling member 14 are laminated on the ceiling surface 11T, and these are integrated by eye bolts (not shown). Further, the upper-side main body 11 and the lower-side main body 20 are connected and integrated by appropriate surface fasteners 64. Subsequently, as shown in FIG. 4(a), cable ties 61 are annularly attached to predetermined positions of each roof inlet grommet 56A, and the integrated constant temperature chamber 10 is placed in the cargo compartment 55.

[0064] Subsequently, as shown in FIG. 4(b), the eye bolts and the cable ties 61 are connected by another cable tie 61 or the like, and the ceiling surface 11T is suspended and held by the roof. At this time, as shown in FIG. 5, the ceiling surface 11T is connected to the roof inlet grommet 56A in order from the front end side. Thereby, since the ceiling surface 11T is suspended and held above the cargo compartment 55 from the front end side, an operator can install the constant temperature chamber 10 in the cargo compartment 55 with good workability.

[0065] Subsequently, as shown in FIG. 2, heat insulating members 2B, 2B are laminated on the floor surface 21, and the ventilation member 25 is laid thereon. When the installation of the constant temperature chamber 10 is completed, the duct 40 is connected as described above, and the constant temperature device 1 is installed in the cargo compartment 55.

[0066] The above is one embodiment of the constant temperature device 1 of the present invention. Next, the operational effects achieved by the constant temperature device 1 of the present invention will be described below. In the following, when there is no particular need for distinction, the heat insulating members 2A, 2B, 2C, 2D, 2E may be collectively referred to as the heat insulating member 2.

[0067] The above-described constant temperature device 1 has the following characteristic configurations (A) to (J). Therefore, the constant temperature device 1 can exhibit unique effects that cannot be achieved by the following prior art.

[0068] (A) The constant temperature device 1 of this embodiment is a constant temperature device 1 mounted on a cargo-compartment-integrated vehicle 50 having an air conditioner outlet 53 in the driver's cab 51. The constant temperature device 1 is detachably arranged in the cargo compartment 55 of the cargo-compartment-integrated vehicle 50 and includes a constant temperature chamber 10 composed of a heat insulation member 2 having flexibility, a duct 40 with one end attached to the outlet 53 and the other end connected to the constant temperature chamber 10, and at least one closing portion 30 arranged to face at least one opening 58 for a vehicle door arranged in the cargo compartment 55 and closing the opening 15 in the constant temperature chamber 10. At least one of the closing portions 30 includes a lower-side closing portion 32 connected to the floor surface 21 of the constant temperature chamber 10 and closing at least a part of the lower side of the closing portion 30, and an upper-side closing portion 31 closing the opening 15 in the constant temperature chamber 10 in an openable and closable manner.

[0069] As described above, the constant temperature device 1 has a constant temperature chamber 10 composed of a heat insulation member 2 having flexibility and is detachably arranged in the cargo compartment 55 of the cargo-compartment-integrated vehicle 50 (for example, a commercial van-type vehicle, etc.). Here, the heat insulation member 2 may be formed of a sheet-like material having, for example, a heat insulation effect (such as those including an air layer or those with an outer surface formed of a reflective member) and being bendable. Thereby, the above-described constant temperature device 1 can store the removed constant temperature chamber 10, for example, by folding. Further, in the above-described constant temperature device 1, since the heat insulation member 2 is formed of a sheet-like member having flexibility, the weight can be reduced, and attachment to and detachment from the cargo compartment 55 and transportation become easy.

[0070] In addition, in the above-described constant temperature device 1, since one end of the duct 40 is attached to the outlet 53 and the other end is connected to the constant temperature chamber 10, the blown air (cool air or warm air) from the outlet 53 is introduced into the constant temperature chamber 10. Thereby, the above-described constant temperature device 1 can cool or heat the inside of the constant temperature chamber 10 without separately providing a heat exchanger, a compressor, etc. Therefore, the above-described constant temperature device 1 can reduce costs and can be formed in a lightweight manner, so transportation is easy.

[0071] Here, the other end of the duct 40 can be connected to various locations in the constant temperature chamber 10. For example, by connecting it to the front end side of the constant temperature chamber 10, the length of the duct 40 can be shortened. Further, the above-described constant temperature device 1 includes a closing portion 30 arranged to face the opening 58 for the vehicle door. Since the closing portion 30 is connected to the floor surface 21 of the constant temperature chamber 10 and includes a lower side closing portion 32 that closes at least a part of the lower side of the closing portion 30, even when the upper side closing portion 31 is opened, it is possible to prevent the closing portion 30 from being fully opened. Thereby, the above-described constant temperature device 1 can suppress the cold air or warm air in the constant temperature chamber 10 from flowing out to the outside all at once when the closing portion 30 is opened. Therefore, the above-described constant temperature device 1 can significantly improve the heating and cooling efficiency. Note that the lower side closing portion 32 can be formed at a height that does not obstruct the loading and unloading of luggage. Further, the lower side closing portion 32 can be configured not only to be fixed but also to be openable and closable as necessary.

[0072] (B) In the constant temperature device 1 of the present embodiment, the driver's cab 51 and the cargo compartment 55 are isolated by the constant temperature chamber 10, so that the air flow between the driver's cab 51 and the cargo compartment 55 is blocked. One end of the duct 40 is arranged so as not to seal the outlet 53, and both a part of the air on the driver's cab 51 side and a part of the blown air from the outlet 53 are introduced into the duct 40.

[0073] The above-described constant temperature device 1 is configured such that the driver's cab 51 and the cargo compartment 55 are isolated by the constant temperature chamber 10, thereby blocking the air flow between the driver's cab 51 and the cargo compartment 55. Also, one end of the duct 40 is arranged so as not to seal the air outlet 53 of the air conditioner in the driver's cab 51. Therefore, the driver's cab 51 is isolated from the cargo compartment 55, and the air from the air outlet 53 is blown out and circulated on the driver's cab 51 side. As a result, the heating and cooling efficiency in the driver's cab 51 is improved. On the other hand, in the constant temperature chamber 10, both the air (cool air or warm air) in the driver's cab 51 flowing in from the duct 40 and a part of the blown air introduced into the duct 40 flow in, so the heating and cooling efficiency of the constant temperature chamber 10 is also improved. Furthermore, in the above-described constant temperature device 1, since the air outlet 53 is not sealed by the duct 40, the blown air does not rush directly toward the constant temperature chamber 10 side and smoothly flows into the constant temperature chamber 10. As a result, a further improvement in the cooling efficiency of the constant temperature chamber 10 can be expected. Therefore, it is possible to provide the constant temperature device 1 suitable for transporting at a predetermined temperature (30°C or lower) such as pharmaceuticals. Here, it is desirable that one end of the duct 40 is connected in a direction intersecting the air outlet 53, for example, in a direction orthogonal to the upper side of the air outlet 53. Thereby, the above-described constant temperature device 1 can introduce the blown air into the duct 40 while blowing the blown air toward the driver's cab 51 side.

[0074] (C) In the constant temperature device 1 of the present embodiment, a back door 59 is provided to be openable and closable at the vehicle door opening 58, and the upper side closing portion 31 is connected to the back door 59, and the upper side closing portion 31 is openable and closable in conjunction with the opening and closing of the back door 59.

[0075] With the above-described constant temperature device 1 configured as such, the upper side closing portion 31 can be opened and closed in synchronization with the back door 59. As a result, an operator can easily open and close the constant temperature chamber 10, improving workability. Further, in the above-described constant temperature device 1, only the upper side closing portion 31 is opened when the back door 59 is opened, so that the lower side closing portion 32 can suppress the air (cool air or warm air) in the constant temperature chamber 10 from flowing out to the outside of the constant temperature chamber 10. Therefore, the above-described constant temperature device 1 can suppress the temperature in the constant temperature chamber 10 from rising or falling rapidly. Here, it is preferable that the above-described constant temperature device 1 of the present invention covers the back door 59 with the heat insulating member 2. Thereby, it is possible to suppress direct irradiation of sunlight or the like onto the constant temperature chamber 10, so that an improvement in heating and cooling efficiency in the constant temperature chamber 10 can be expected.

[0076] (D) In the constant temperature device 1 of the present embodiment, the vehicle door opening 58 is provided on at least one of the sides of the cargo compartment integrated vehicle 50, and a slide door 57 that is openable and closable in the vehicle front-rear direction is provided in the vehicle door opening 58. The upper side closing portion 31 is openable and closable in the vehicle front-rear direction, and the front end side of the upper side closing portion 31 is connected to the front end side of the slide door 57. The upper side closing portion 31 opens and closes while elastically deforming as the slide door 57 opens and closes.

[0077] Since the front end side of the upper side closing portion 31 is connected to the front end side of the slide door 57 in the above-described constant temperature device 1, the upper side closing portion 31 can be opened and closed as the slide door 57 is opened and closed. Here, since the upper side closing portion 31 is made to have flexibility, it opens and closes while elastically deforming as the slide door 57 is opened and closed. Thereby, an operator can easily open and close the constant temperature chamber 10, and workability is improved. Further, since only the upper side closing portion 31 of the above-described constant temperature device 1 is opened when the back door 59 is opened, the lower side closing portion 32 can suppress the air (cool air or warm air) in the constant temperature chamber 10 from flowing out to the outside of the constant temperature chamber 10. Therefore, the above-described constant temperature device 1 can suppress the temperature in the constant temperature chamber 10 from rising or falling rapidly. Here, the above-described constant temperature device 1 of the present invention is preferably configured such that the slide door 57 is covered with the heat insulating member 2. Thereby, since it is possible to suppress direct irradiation of sunlight or the like to the constant temperature chamber 10, an improvement in heating and cooling efficiency in the constant temperature chamber 10 can be expected.

[0078] (E) The constant temperature device 1 of the present embodiment is characterized in that the constant temperature chamber 10 has a ceiling surface 11T, and the ceiling surface 11T is composed of at least two layers of heat insulating members 2.

[0079] Since the ceiling surface 11T of the above-described constant temperature device 1 has at least two layers of heat insulating members 2, it can have a sandwich structure in which an air layer is sandwiched between the heat insulating members 2. Thereby, the above-described constant temperature device 1 can perform effective heat insulation on the ceiling surface 11T, so that the heating and cooling efficiency can be improved. Here, the above-described constant temperature device 1 can be configured such that the ceiling surface 11T is composed of three layers of heat insulating members 2. Thereby, the above-described constant temperature device 1 can have a sandwich structure in which two air layers are sandwiched between the heat insulating members 2 on the ceiling surface 11T, so that a further heat insulation effect can be expected. Note that the number of layers of the heat insulating members 2 on the ceiling surface 11T can be set to an appropriate number of layers in consideration of the heat insulation effect, cost, weight, and the like.

[0080] (F) The constant temperature device 1 of this embodiment is characterized in that the ceiling surface 11T can be suspended and held on the inner surface of the vehicle-side ceiling surface 56 in the cargo compartment integrated vehicle 50.

[0081] With the above-described configuration of the constant temperature device 1, since the ceiling surface 11T is suspended and held on the inner surface of the vehicle-side ceiling surface 56, even if the ceiling surface 11T is formed of the heat insulating member 2 having flexibility, the ceiling surface 11T will not sag. Therefore, the above-described constant temperature device 1 can configure the constant temperature chamber 10 using the heat insulating member 2 having flexibility, and can improve the storage property.

[0082] (G) The constant temperature device 1 of this embodiment is characterized in that the floor surface 21 of the constant temperature chamber 10 is formed of at least two layers of heat insulating members 2.

[0083] With the above-described constant temperature device 1, since the floor surface 21 has at least two layers of heat insulating members 2, it can have a sandwich structure in which an air layer is sandwiched by the heat insulating members 2. Thereby, the above-described constant temperature device 1 can perform effective heat insulation on the floor surface 21, and thus can improve the heating and cooling efficiency. Here, it is preferable that the above-described constant temperature device 1 configure the floor surface 21 with three layers of heat insulating members 2. Thereby, the above-described constant temperature device 1 can have a sandwich structure in which two air layers are sandwiched by the heat insulating members 2 on the floor surface 21, and thus a further heat insulation effect can be expected. Note that the number of layers of the heat insulating members 2 on the floor surface 21 can be set to an appropriate number of layers in consideration of the heat insulation effect, cost, weight, etc.

[0084] (H) The constant temperature device 1 of this embodiment is characterized in that a ventilation member 25 is laid on the floor surface 21.

[0085] By adopting such a configuration, the above-described thermostatic device 1 can cause air to flow into the floor surface 21 through the ventilation member 25. That is, since the above-described thermostatic device 1 can provide a space between the floor surface 21 and the luggage, the air permeability of the floor surface 21 can be improved. Thereby, the above-described thermostatic device 1 can improve the heating and cooling efficiency in the constant temperature chamber 10. Here, the ventilation member 25 is preferably, for example, a louver formed in a mesh shape. Thereby, the above-described thermostatic device 1 can further improve the air permeability and suppress damage to the heat insulating member 2 of the floor surface 21. Further, by laying the louver on the floor surface 21 in the above-described thermostatic device 1, it is possible to expect an improvement in the handling of luggage and an anti-slip effect of the luggage during vehicle travel.

[0086] (I) The thermostatic device 1 of the present embodiment is characterized in that the duct 40 is formed so as to extend upward along the front pillar 54A on the passenger seat side from the air outlet 53 and is bent toward the rear side of the vehicle at the upper end of the front pillar 54A on the passenger seat side.

[0087] By adopting such a configuration, the above-described thermostatic device 1 can suppress blocking the driver's field of view. Here, the duct 40 is covered with the heat insulating member 2 around it. Thereby, a further improvement in the heating and cooling efficiency in the above-described thermostatic device 1 can be expected. Further, when an assist grip 65 is provided on the front pillar 54A on the passenger seat side in the above-described thermostatic device 1, the duct 40 can be fixed using the fixing bolt of the assist grip 65. Specifically, the assist grip 65 is removed, and for example, a hook-and-loop fastener 64 is provided in the bolt fastening hole of the assist grip 65, and the duct 40 is fixed by the hook-and-loop fastener 64. Further, the duct 40 can be provided with a soundproof material as needed. Thereby, the above-described thermostatic device 1 can suppress noise such as the inflow sound of the air introduced into the duct 40. Further, the duct 40 can also be provided with a filter (for example, a mesh member) at one end on the air outlet 53 side. Thereby, it is possible to suppress foreign matter from entering the constant temperature chamber 10 through the duct 40.

[0088] (J) In the temperature control device 1 of this embodiment, on the side facing the outside of the constant temperature chamber 10, the heat insulation member 2 is formed to be able to reflect light. An electronic inner mirror 60 is arranged at the driver's seat, and a photographing camera 60A of the electronic inner mirror 60 is arranged toward the rear side of the vehicle on the rear window 59A in the luggage compartment 55. An antireflection material 63 is arranged on the heat insulation member 2 facing the display surface of the electronic inner mirror 60.

[0089] In the temperature control device 1 described above, since the antireflection material 63 is arranged on the heat insulation member 2 facing the display surface of the electronic inner mirror 60, the reflection (reflection) of the heat insulation member 2 on the electronic inner mirror 60 can be suppressed. Here, the antireflection material 63 can be composed of a material with good light absorption, for example, a black sheet material (for example, felt, paper, cloth, resin plate, etc.).

[0090] The above is the configuration and operation effects of the embodiment of the present invention. However, the temperature control device 1 of the present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the present invention.

[0091] In this embodiment, the case where the temperature control device 1 is used in a commercial van-type vehicle of a light automobile is exemplified. However, the temperature control device 1 can be used in various luggage compartment integrated vehicles 50. Further, the constant temperature chamber 10 is not limited to a cubic shape, and various shapes can be used according to the shape of the luggage compartment 55. Further, in this embodiment, the upper side closing portion 31 and the lower side closing portion 32 are separately formed, but they may be integrally formed. Further, the degree of flexibility of the heat insulation member 2 can be various degrees of flexibility in consideration of assemblability and installability. Further, the shapes and sizes of the upper side closing portion 31 and the lower side closing portion 32 can be appropriately changed.

[0092] In addition, in this embodiment, it is assumed that the heat insulation members 2A, 2B, 2C, 2D, 2E, and 2F (also referred to as heat insulation members 2A to 2F) are made of different materials. However, the heat insulation members 2A to 2F may be composed of the same material or a combination of different materials. Further, the heat insulation members 2A to 2F can be configured using either one or both of heat insulation properties and heat insulation properties as materials according to the usage mode. In this embodiment, two layers of heat insulation members 2B and 2B are laminated on the floor surface 21, and the ventilation member 25 is laid thereon. However, these lamination orders can be changed according to the usage mode.

[0093] In addition, in this embodiment, the constant temperature chamber 10 separates the driver's cab 51 and the cargo compartment 55. However, the driver's cab 51 and the cargo compartment 55 do not have to be separated. In this embodiment, one end of the duct 40 is arranged so as not to seal the air outlet 53. However, as long as the duct 40 does not become clogged, the air outlet 53 may be sealed. In this embodiment, the duct 40 is provided with a blower fan 41. However, the blower fan 41 may be arranged at an appropriate location as needed, and a configuration without the blower fan 41 can also be adopted. Further, the duct 40 is not limited to being arranged so as to be orthogonal to the air outlet 53, and can be arranged in various directions. In addition, the constant temperature device 1 can be used not only for cooling but also for heating in cold regions, for example.

[0094] In this embodiment, it is assumed that the upper side closing portion 31 opens and closes in conjunction with the back door 59 and the sliding door 57. However, the upper side closing portion 31 can also be configured not to be interlocked with the back door 59 and the sliding door 57. Further, various means can be used for the opening and closing form of the upper side closing portion 31 according to the structure and size of the back door 59 and the sliding door 57.

[0095] In this embodiment, the ceiling surface 11T of the constant temperature chamber 10 is composed of a heat insulation member 2A, and the first ceiling member 13 (heat insulation member 2C) and the second ceiling member 14 (heat insulation member 2D) are laminated thereon. However, the layer structure of the heat insulation members 2A, 2C, and 2D is not limited to three layers, and may be formed of one layer or four or more layers. Further, the material, shape, and thickness of the heat insulation members 2A, 2C, and 2D can be appropriately changed.

[0096] In this embodiment, the ceiling surface 11T is suspended and held on the inner surface of the vehicle-side ceiling surface 56 in the cargo compartment integrated vehicle 50. However, depending on the material and degree of deformation of the ceiling surface 11T, etc., it may not be suspended and held. In this embodiment, an example is given in which the ceiling surface 11T is suspended and held using the roof inner hose mount 56A. However, in a vehicle 50 without the roof inner hose mount 56A, the vehicle-side ceiling surface 56 may be appropriately used for holding. Further, various means can be used for the connection form between the ceiling surface 11T and the vehicle-side ceiling surface 56.

[0097] In this embodiment, an example is given in which the floor surface 21 of the constant temperature chamber 10 is composed of three layers of heat insulation members 2. However, the layer structure of the heat insulation member 2 of the floor surface 21 is not limited to three layers, and may be formed of two layers or four or more layers. Further, the material, shape, and thickness of the heat insulation member 2 can be appropriately changed.

[0098] In this embodiment, the ventilation member 25 is laid on the floor surface 21. However, the ventilation member 25 may be laid as necessary, and a configuration without the ventilation member 25 is also possible. Further, various shapes, structures, and materials of the ventilation member 25 can be used. In this embodiment, the ventilation member 25 is laid on the floor surface 21. However, the ventilation member 25 can be appropriately changed in the lamination order according to the usage form, etc., such as being arranged below the floor surface 21 or between the laminated heat insulation members 2.

[0099] In the present embodiment, the duct 40 is formed to extend upward along the passenger seat side front pillar 54A from the air outlet 53 and is bent toward the rear side of the vehicle at the upper end of the passenger seat side front pillar 54A. However, the duct 40 can be provided in various arrangements as long as it does not block the driver's view. For example, the duct 40 may be provided along the driver's seat side front pillar or may be arranged along the floor of the driver's cab 51.

[0100] In the present embodiment, the case where the electronic inner mirror 60 is provided in the driver's cab 51 has been illustrated. However, the electronic inner mirror 60 may be provided as necessary, and the thermostat 1 of the present invention can also be configured without the electronic inner mirror 60. Further, the imaging camera 60A can be installed at an appropriate location, and not only a single one but also a plurality of imaging cameras 60A may be provided. Further, the antireflection material 63 may be provided when reflection occurs in the electronic inner mirror 60, and the configuration may be such that the antireflection material 63 is not provided. Further, various materials, shapes, and colors can be used for the antireflection material 63.

[0101] The above are various embodiments and modifications of the thermostat according to the present invention. However, the present invention is not limited to those illustrated in the above-described embodiments and modifications, and it will be easily understood by those skilled in the art that there may be other embodiments within the scope not departing from the teachings and spirit thereof.

Industrial Applicability

[0102] The present invention can be suitably used in general in cargo compartment integrated vehicles such as commercial van type vehicles. Further, the present invention can be suitably used when transporting goods that require temperature control, such as the transportation of pharmaceuticals.

Explanation of Reference Numerals

[0103] 1: Thermostat 2: Heat insulation member 2A: Heat insulation member 2B: Heat insulation member 2C: Heat insulation member 2D: Heat insulation member 2E: Heat insulation member 10: Constant temperature chamber 11: Upper side body 11L: Upper side side wall 11R: Upper side side wall 11T: Ceiling surface 12: Through hole 13: First ceiling member 14: Second ceiling member 15: Opening 15A: First opening 15B: Second opening 16: Upper side front wall 16A: Duct connection port 20: Lower side body 21: Floor surface 23: Lower side front wall 25: Ventilation member 30: Closing part 31: Upper side closing part 31A: First upper side closing part 31B: Second upper side closing part 32: Lower side closing part 32A: First lower side closing part 32B: Second lower side closing part 33: Band 35: Mounting hole 40: Duct 41: Blower fan 50: Cargo-compartment integrated vehicle (vehicle) 51: Driver's cab 52: Passenger side door 53: Outlet 54: Front pillar 54A: Passenger side front pillar 55: Cargo compartment 56: Vehicle side ceiling surface 56A: Roof rain hose mount 57: Sliding door 57A: Second connection part 58: Opening for vehicle door 59: Back door 59A: Rear window 59B: First connection part 60: Electronic inner mirror 60A: Shooting camera 61: Cable tie 62: Side window 63: Anti-reflection material 64: Hook and loop fastener 65: Assist grip 66: Sliding window 67: Quarter window 68: Cup folder

Claims

1. A thermostatic device mounted on a cargo-compartment integrated vehicle having an air conditioner outlet in the driver's cab, comprising a thermostatic chamber removably disposed in the cargo compartment of the cargo-compartment integrated vehicle and composed of a heat-insulating member having flexibility, a duct having one end attached to the outlet and the other end connected to the thermostatic chamber, at least one closing portion disposed to face at least one opening for a vehicle door disposed in the cargo compartment and closing the opening in the thermostatic chamber, and comprising: at least one of the closing portions comprises a lower-side closing portion connected to the floor surface of the thermostatic chamber and closing at least a part of the lower side of the closing portion, and an upper-side closing portion closing the opening in the thermostatic chamber in an openable and closable manner. The thermostatic device is characterized by this.

2. By the thermostatic chamber, the driver's cab and the cargo compartment are isolated, so that the air flow between the driver's cab and the cargo compartment is shielded, one end of the duct is arranged so as not to seal the outlet, The thermostatic device according to claim 1, characterized in that both a part of the air on the driver's cab side and a part of the blown air from the outlet are introduced into the duct.

3. A back door is provided in the opening for the vehicle door so as to be openable and closable, the upper-side closing portion is connected to the back door, The thermostatic device according to claim 1 or 2, characterized in that the upper-side closing portion is openable and closable along with the opening and closing of the back door.

4. The opening for the vehicle door is provided on at least one of the sides of the cargo-compartment integrated vehicle, and a slide door openable and closable in the vehicle longitudinal direction is provided in the opening for the vehicle door, the upper-side closing portion is openable and closable in the vehicle longitudinal direction, The front end side of the upper side closing part is connected to the front end side of the sliding door, The thermostatic device according to claim 1 or 2, characterized in that the upper side closing part opens and closes while elastically deforming as the sliding door opens and closes.

5. The constant temperature chamber has a ceiling surface, The thermostatic device according to claim 1 or 2, characterized in that the ceiling surface is composed of at least two layers of heat insulating members.

Images