JPH0651707U - Heater device for simple greenhouses, etc. - Google Patents

Abstract

(57) [Abstract] [Purpose] Heater device 1 used to maintain the temperature of a simple greenhouse
In the above, the heat radiation area is expanded while the overall size is suppressed, and the risk of burns is reduced. [Structure] A main body case 2 is constructed by mutually connecting a base body 4, an intermediate member 5, and a cover body 3 formed by extruding an aluminum alloy, and a sheath heater 6 is provided between the intermediate member 5 and the cover body 3. I was pinched. A large number of heat radiation fins 20 are provided on the outer peripheral surfaces of the base body 4 and the cover body 3 so as to expand the heat radiation area. By reducing the size of the main body case 2, lowering the temperature of the sheath heater 6, and forming the outer shell of the main body case 2 by the projecting ends of the radiation fins 20,
Reduced risk of burns.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a heater device used for maintaining the temperature of a simple greenhouse.

[0002]

[Prior art]

 A simple greenhouse is used for cultivating tropical plants and wintering temperate plants in general households.This simple greenhouse uses a box frame with multiple shelves made of multiple aluminum strips. It is assembled and surrounded by glass or resin sheet material, and a heater device for maintaining a predetermined temperature is provided inside.

Conventionally, a heater device used in this kind of simple greenhouse or the like has a cord heater crawling in a zigzag shape over the entire inner bottom surface of a flat plate-shaped metal case, and a thin metal plate (aluminum foil or the like) is placed thereon. It's like glued together, and it's usually placed under the bottom shelf in a simple greenhouse.

[0004]

[Problems to be solved by the device]

 In order to increase the heat radiation amount in the conventional heater device, it is necessary to increase the planar size of the metal case. However, in some cases it was not possible to increase the size (ie, increase the amount of heat dissipation) in relation to the floor area of a simple greenhouse. Since the surface temperature of the heater device reaches a maximum of 125 ° C, it will be burned if touched by hands, etc. However, since the surface of the metal case is flat, it is easily touched by hands, etc. It was also that high, and the burns were relatively widespread. This further increases the risk as the size increases. Further, the above-mentioned increase in size tends to cause temperature unevenness in the metal case, which causes a problem that the metal case is deformed.

The present invention has been made in view of the above circumstances, and it is possible to increase the amount of heat radiation while suppressing an increase in the size of the whole, and to prevent the risk of burns and the deformation of the case. An object of the present invention is to provide a heater device for a simple greenhouse or the like.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention takes the following technical means. That is, the present invention comprises a metal main body case and a heat generator built in the main body case, and the main body case has a base body and a device housing portion between the base body and the base body. It is characterized in that it is composed of a cover body to be formed and an intermediate member for holding the heat generating device, which is interposed between the base body and the cover body.

The present invention further includes a metal main body case and a heat-generating device built in the main body case, and the main body case has a base body and a device housing portion between the base body and the base body. It is characterized in that a device holding part capable of holding a heat generating device is provided on at least one of the base part and the covering part when they are connected.

In the present invention, it is preferable that at least one of the base body and the cover body of the main body case is provided with a plurality of heat radiation fins protruding toward the outer peripheral surfaces thereof. Further, according to the present invention, the base body and the cover body of the main body case may be held in a coupled state by a fitting structure.

[0009]

[Action]

 According to the present invention, by coupling the base body and the cover body together, the heat generating device is held in a tie shape between them (in the main body case), and the heat of the heat generating device is retained by the base body and the cover body. Since the heat is radiated to the outside through (all are made of metal such as aluminum alloy), it is possible to efficiently use the entire peripheral surface of the main body case as the heat radiating surface. In addition, it is possible to change the design of the body case according to various requests. An intermediate member is provided between the base body and the cover body, or a device holding portion is provided on at least one of the base body and the cover body to hold the heat generating device immovably.

By disposing the radiation fins on the outer peripheral surfaces of the base body and the cover body, it is possible to further increase the amount of heat radiation. In this case, if the total amount of heat radiation is set to a predetermined value according to the capacity of the simple greenhouse, the main body case can be downsized as a whole. When the base body and the cover body are connected by a fitting structure, both structures are simplified and the connecting work is facilitated.

[0011]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 is a perspective view showing a heater device 1 according to the present invention, FIG. 2 is a partially omitted plan view, and FIG. 3 is an enlarged sectional view taken along the line AA of FIG. The heater device 1 includes a flat and slender body case 2 and a heating device 6 having a U-shape as a whole built therein.

As shown in FIG. 3, the main body case 2 is composed of a base body 4, an intermediate member 5, and a cover body 3, and the base body 4 and the cover body 3 are connected to each other in the longitudinal direction thereof. A device storage section 7 is formed along the line. Two parallel hollow ribs 9 projecting along the longitudinal direction are provided on the inner surface of the cover body 3, and the intermediate member 5 hugs both outer sides of these hollow ribs 9 by force fitting. It is attached to the cover body 3 so as to be peeled off. The intermediate member 5 is provided with a round-bottomed groove-shaped device holding portion 8 in a portion corresponding to each inner side of the hollow ribs 9. The device holding portion 8 covers the heat-generating device 6 with a cover body. It is designed to be pressed against the inner surface of 3 and held. The base body 4, the intermediate member 5, and the cover body 3 are all made of metal, and radiate the heat from the heat generating device 6 to the outside. It is preferable to use extrusion forming or drawing forming using an aluminum alloy with excellent thermal conductivity. In this case, the length differs depending on the specifications (capacity of the target greenhouse, etc.). There is an advantage that various kinds of things can be easily manufactured. In addition, the thickness of the intermediate member 5 around the device holding portion 8 and around the portion of the cover 3 against which the heat generating device 6 is pressed is made thicker than other portions, and the heat of the main body case 2 as a whole is increased. The distribution was made uniform. Reference numeral 10 is a thermostat screwed to the cover body 3 with a tapping screw 11 or the like, and 12 is a ground terminal.

In this embodiment, a sheathed heater having a diameter of 6.5 mm is used as the heating device 6, and the thermostat 10 controls the temperature so that the upper limit is 100 ° C. (conventionally 125 ° C.). . The base body 4 and the cover body 3 have a fitting structure including a hinge engaging portion 15 formed on one side portion along the longitudinal direction and a hook engaging portion 16 formed on the other side portion, The combined state is retained.

A plurality of heat radiation fins 20 are formed on the outer peripheral surfaces of the base body 4 and the cover body 3 so as to project therefrom. Most of the radiating fins 20 are inclined in the projecting direction, so that each projecting length of the radiating fins 20, that is, the radiating area can be controlled without increasing the dimension b in the thickness direction of the body case 2. I can make it bigger. The space P between the adjacent heat dissipating fins 20 is set to a dimension (3.45 mm) that does not allow a standard child-sized finger to enter.

At both ends of the main body case 2 in the longitudinal direction, end treatment caps 17 (see FIG. 4) made of thermosetting resin are separately attached. The end processing cap 17 is fixed by screwing a tapping screw 21 into the hollow rib 9 of the cover body 3. In addition, it is preferable to form a draining gap 23 (see FIG. 1) at the joint between the main body case 2 and the end processing cap 17. A hook metal fitting 22 is rotatably attached to one end of the end treatment cap 17 and the heater fitting 1 can be suspended by using the hook metal fitting 22 in an extended state. The end processing cap 17 can be omitted by integrally providing the closing plate (not shown) to both ends of the base body 4 and the cover body 3 in the longitudinal direction.

FIG. 5 shows a usage state of the heater device 1. The heater device 1 is used by placing it on the inner bottom of the simple greenhouse 30 or by suspending it with the hook metal fitting 22 at an intermediate height position, or These are used together. In this invention, as shown in FIG. 6, the main body case 2 is composed of a base body 4 and a cover body 3 (there is no intermediate member 5), and the base body 4 and the cover body 3 are both It is also possible to form an equipment holding portion 8 for holding the heat-generating equipment 6 at the time of joining the both, on the inner surface.

[0017]

[Effect of device]

 The present invention has the above-mentioned configuration, and since the base body and the cover body that form the main body case radiate heat on the entire outer peripheral surface thereof, they have excellent heat radiation performance. Moreover, by disposing the heat radiation fins on the outer peripheral surfaces of the base body and the cover body, it is possible to increase the heat radiation area while suppressing the overall size of the main body case from increasing, and the heat radiation effect is further improved. . That is, it is possible to obtain a compact device having a large heat radiation amount or a small device having a predetermined heat radiation amount. Therefore, the internal space of the simple greenhouse will not be unnecessarily narrowed down, and more plants can be stored in the simple greenhouse. With such improved heat dissipation performance, it has become possible to change the shape of the main body case to a box shape, a column shape, a rod shape, a plate shape, etc. in response to various requests, and its use posture is horizontal. It can be used not only as a vertical type but also as a vertical type.

Further, with the improvement of the heat dissipation performance, it is possible to downsize the heat-generating device (the maximum heat generation temperature of the conventional device is 125 ° C., whereas the heat generation device of the present invention is 100 ° C.). In addition, the overall size of the main body case is reduced, and the risk of burns is reduced. Not only that, since the outer shell of the main body case is formed by the tips of the heat radiation fins, the contact surface when touched by a hand etc. is small and the burns are mild.

Furthermore, if the base body and the cover body that form the main body case are coupled by a fitting structure, the structure can be simplified and the coupling work can be facilitated.

[Brief description of drawings]

FIG. 1 is a perspective view showing a heater device according to the present invention.

FIG. 2 is a partially omitted plan view of the heater device of FIG.

3 is an enlarged cross-sectional view taken along the line AA of FIG.

4 is an enlarged side view of FIG.

FIG. 5 is a view showing a usage example of the heater device according to the present invention.

FIG. 6 is a side sectional view showing another embodiment of the main body case.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Heater device 2 Main body case 3 Cover part body 4 Base part body 5 Intermediate member 6 Heating device 7 Device storage part 8 Device holding part 20 Radiating fin

Claims (4)

[Scope of utility model registration request] 1. A body case (2) made of metal and a heat-generating device (6) built in the body case (2), wherein the body case (2) includes a base body (4) and a base body (4). The cover body (3) for forming a device housing portion (7) between the base body (4) and the base body (4) is interposed between the base body (4) and the cover body (3). A heater device for a simple greenhouse or the like, which comprises a heating device (6) and an intermediate member (5) for holding. 2. A body case (2) made of metal and a heat generating device (6) built in the body case (2), wherein the body case (2) includes a base body (4) and a base body (4). A cover body (3) for forming a device housing (7) between the base body (4) and the base body (4), and at least one of the base body (4) and the cover body (3) at the time of connection. A heater device for a simple greenhouse or the like, characterized in that a device holding portion (8) capable of holding a heat generating device (6) between the two is provided. 3. A plurality of heat dissipating fins (20) are provided on at least one of the base body (4) and the cover body (3) of the main body case (2) so as to project toward the outer peripheral surface thereof. The heater device for a simple greenhouse or the like according to claim 1 or 2. 4. The base body (4) and the cover body (3) of the main body case (2) are adapted to be held in a coupled state by a fitting structure. ~ 3
A heater device for a simple greenhouse or the like according to any one of 1.