JP3000928B2 - House cultivation heater - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for cultivating strawberries and the like using propane gas as a main fuel.

[0002]

2. Description of the Related Art Conventionally, there has been known a warmer for house cultivation in which propane gas is burned and carbon dioxide gas is supplied in order to promote temperature control in the house or photosynthesis necessary for growing plants in house cultivation. I have. Since this type of heater operates mainly at night, the ignition and fire extinguishing work must be repeatedly performed manually in the evening and the next morning by hand. Since a plurality of heaters are installed, enormous labor and labor are required to manage a plurality of heaters.

The applicant of the present invention has proposed a heater for cultivating a house in which a heater installed in a house can be automatically operated in Japanese Utility Model Laid-Open No. 5-82254. This warmer for house cultivation is configured to control ignition and extinguishing of a gas burner by a timer means, and to enable automatic operation at a temperature optimum for a cultivated crop by a temperature detecting means. However, the warmer for house cultivation incorporates various electric devices such as a circuit board and a control device for automatically operating the burner device based on a set time or temperature by a timer means or a temperature detecting means. Uses a home power supply. That is, a power cord having a plug is connected to the heater, and power is obtained by inserting the plug into an outlet. For this reason, electrical equipment is required in the house, and since multiple heaters are scattered and arranged in a large greenhouse, outlets corresponding to the number of heaters are installed at multiple places. However, there is a problem that the cost of equipment is increased due to these electric works. In addition, it is desirable that the outlet and the heater are closer to each other as much as possible, and there is a disadvantage that the heater cannot be arranged far away from the outlet and the installation position of the heater is restricted by the installation position of the outlet. In this case, if an extension cord is used, the heater can be placed far away from the outlet, but on the other hand, there is a risk of getting caught on the extension cord. It is preferable to avoid it.

[0004] Therefore, an object of the present invention is to provide a heater for cultivating a house, in which the heater is made cordless and electric equipment in the house is not required.

[0005]

According to a first aspect of the present invention, there is provided a gas burner for burning a gas, a solenoid valve provided in a gas supply path, a spark ignition device for igniting the gas burner, and a gas burner. Flame to detect whether it is burning
Comprising a beam detecting plug, and a central control unit for automatic operation by the timer means or the temperature detecting means, said frame
The solenoid valve is controlled by the detection signal from the system detection plug.
And the solenoid valve and the spa
Various types of electricity such as spark ignition devices and flame detection plugs
The power supply for the equipment and the power supply for the central control
Each of these power supplies is connected to a battery that is detachably attached to the heater body.
Thus, it is configured .

According to the first aspect of the present invention, a battery built in the main body of the heater is used as a power source, so that a power supply facility is not required in the cultivation facility. In addition, since the heater is cordless, the installation position of the heater can be freely selected, and there is no fear that the cord is caught by a foot and does not disturb the cultivation work.

[0007]

An embodiment of the present invention will be described below with reference to the accompanying drawings. FIGS. 1 to 4 show an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a heater provided at an appropriate place in a house (not shown), and 2 denotes a box-shaped case of the heater 1. A cylindrical gas burner 3 is erected below the radiating tube opening 2A formed in the case 2. The gas burner 3 is formed to have a larger diameter toward the upper side, and a small hole (not shown) is formed on the upper surface of the gas blowout portion 4 located at the upper end.
Are provided.

Reference numeral 6 denotes a gas conduit which is provided along the lower part of the case 2 and is a substantially L-shaped gas supply passage. A lower end of the gas burner 3 is connected, and a solenoid valve 10 is connected to a base end 9 of the gas conduit 6. Reference numeral 11 denotes a gas connection port which is connected to the solenoid valve 10 and protrudes from one side of the case 2. A gas hose (not shown) or the like is fitted into the gas connection port 11 so that the gas connection port Propane gas is supplied.

Reference numeral 12 denotes a piezoelectric terminal which is a spark-type ignition device provided facing the gas blowing section 4 of the gas burner 3.
A combustion section 13 is constituted by the piezoelectric terminal 12 and the gas burner 3. 12A is provided adjacent to the piezoelectric terminal 12.
It is a flame detection plug as a flame detection means , and detects whether the gas burner 3 is burning. Reference numeral 14 denotes a cover fixed on the case 2 so as to cover the piezoelectric terminals 12. Reference numeral 15 denotes a control board that stands upright inside the case 2. The control board 15 includes a combustion indicator lamp 16, together with the electromagnetic valve 10, the piezoelectric terminal 12, and the frame detection plug 12 A.
The warning display lamp 16A and the like are electrically connected. further,
An operation switch 17 is attached and fixed to one side of the case 2,
The operation switch 17 supplies and interrupts a predetermined input voltage to the control board 15. Reference numeral 18 denotes a dry battery incorporated as a power source for various electric devices such as the electromagnetic valve 10, the piezoelectric terminal 12, and the display lamps 16 and 16A, and is removably mounted in a battery storage portion 19 opened in the case 2. Further, the battery storage section 19 is opened and closed by a battery cover 20 fixed by screws 21. The exhausted dry battery 18 can be easily replaced by removing the battery cover 20. Reference numeral 21 denotes a net-like heat radiating tube that stands up above the heat radiating tube opening 2A, and reference numeral 21A denotes a heat radiating tube cover that covers the upper end opening of the heat radiating tube 20.

On both side surfaces of the case 2, mounting pieces 22 having holes 22A extend. Reference numeral 23 denotes a pair of legs which are fitted between the mounting pieces 22 and are formed in a substantially U-shape. A screw 25 is screwed into a screw hole 24 provided in the leg 23 so that the case 2 The leg 23 is attached and fixed to the bottom of the. The leg portion 23 is formed with a narrow insertion portion 26 toward the front end, and the insertion portion 26 allows the heater 1 to be inserted and fixed at an arbitrary position on the ground. .
A plurality of types of legs 23 having insertion portions 26 of different lengths are prepared so that the heater 1 can be installed at an arbitrary height above the ground.

Reference numeral 27 denotes a timer device serving as a central control device. The timer device 27 has a timer 29 serving as timer means attached to the front of a case 28. Reference numeral 32 denotes a thermo-control device serving as a central control device.
A thermo-temperature detecting section 37 constituting a temperature detecting means is built in the case 33 inside. Then, one of the timer device 27 and the thermo device 32 is selected and fixed to the case 2 of the heater 1 with the screw 40A. That is, when the user wants to operate and stop the heater 1 at a predetermined time, the timer device 27 is assembled to the case 2 and the heater 1 is set at the set temperature.
When it is desired to automatically operate the thermostat 32, the thermo device 32 is attached to the case 2. When the timer device 27 and the thermo device 32 are fixed to the heater 1, the cord 31 having the connector 30 is pulled out from both cases 28 and 33 to electrically connect to the control board 15 of the heater 1. On the other hand, a cord 31A having a connector 30A electrically connected to the control board 15 is drawn out of the case 2. Further, the timer device 27 and the thermo device 32 include a dry battery 40 as a power source similarly to the heater 1. The dry battery 40 is removably mounted in a battery storage section 45 which is opened and closed by a battery cover 44. The battery cover 44 is fixed with screws 46, similarly to the battery cover 20.

Next, the operation of the above configuration will be described.

First, according to the installation height of the heater 1, the legs 23
And fix the leg 23 to the bottom of the case 2 with the screw 25. Then, by inserting the insertion portion 26 into the ground, one or more heaters 1 are installed at predetermined positions. Next, either the timer device 27 or the thermo device 32 is selectively fixed to each heater 1 in advance. Then, when using the timer device 27, the timer 29 is operated in advance to set the timer start time and the timer end time, while, when assembling the thermo device 32, the thermo body 34 is operated, Set the temperature for switching between energization and disconnection. At this time, the operation switch of the heater 1
By turning on 17, the plurality of heaters 1 are automatically operated simultaneously based on the time or temperature set by the timer device 27 or the thermo device 32.

When the voltage of the dry battery 18 incorporated in the heater 1 is supplied while the operation switch 17 is in the ON state, the control board 15 is operated, and the crimping electronics 12 is first sparked and the solenoid valve 10 is turned on. Open, the gas from the gas connection port 11 is led to the gas burner 3 via the gas conduit 6 and the nozzle 8,
The propane gas supplied from the gas blowing section 4 is ignited.
At the same time, the combustion indicator lamp 16 is turned on. Then, when the frame detection plug 12A detects the frame, the ignition operation ends, the energization to the crimp terminal 12 is stopped, and the frame detection plug 12A continues to detect the frame. That is, if the combustion is progressing, the electromagnetic valve 10 is opened and the gas supply to the gas burner 3 is continued. On the other hand, when the fire is extinguished on the way, the misfire is detected, the solenoid valve 10 is closed immediately, and the gas supply to the gas burner 3 is stopped.
The warning display lamp 16A is turned on.

As described above, according to the above-described embodiment, by automatically connecting each heater 1 to the timer device 27 or the thermo device 32, the automatic operation by the plurality of heaters 1 at night can be performed. This can be easily performed, and the trouble of performing the regular ignition and extinguishing work relying on humans as in the related art can be relieved. Further, it is possible to promote the photosynthesis of, for example, strawberries cultivated by radiating carbon dioxide gas into the house by burning propane gas, thereby promoting the growth of strawberries. In addition, the temperature can be controlled to be suitable for cultivation. Further, the heater 1 is driven in the cultivation house by incorporating a dry battery 18 as a power source of the heater 1 and a dry battery 40 as a power source of the timer device 27 or the thermo device 32 for controlling the heater 1. This eliminates the need for a power supply facility, and the installation position of the heater 1 is not restricted by the position of the outlet, so that the heater 1 can be easily installed at an arbitrary position in the house at a desired height. Moreover, the heater 23 can be firmly fixed by piercing the detachable leg 23 having the insertion portion 26 of a plurality of lengths into the ground, and the heater 1 can be prevented from tipping over.
In addition, the cordless heating device 1 allows efficient cultivation work without having to worry about tripping over the power cord during cultivation work. In addition, a timer device
The electrical connection between the heater 27 or the thermo device 32 and the heater 1 can be very easily connected by the connectors 30 and 30A. Also, by selecting either the timer device 27 or the thermo device 32 and assembling it to the case 2, it becomes necessary. Can be controlled according to.

The present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention. For example, the legs attached to the heater
The shape may be appropriately modified in consideration of the state of the ground or the like. Further, the timer device or the thermo device can be achieved by various configurations and shapes other than the embodiment. In addition, although an example is shown in which a dry battery that is inexpensive and easy to handle is mounted as a power source, various batteries such as a solar cell can be mounted as a power source.

[0017]

According to the present invention, a gas burner for burning gas, an electromagnetic valve provided in the gas supply passage, and a spark ignition system for igniting the gas burner, said Gasuba
A flame detection plug for detecting whether or not the burner is burning,
; And a central control unit for automatic operation by the timer means or the temperature sensing means from the frame detecting plug
The electromagnetic valve is controlled by the detection signal of the above, and the electromagnetic valve, the spark ignition device and the
Wherein a power supply for various electric appliances such as the fine frame detection plug
The power supply of the central control unit is incorporated, and each power supply is
Suitable for cultivation of photosynthesis of cultivated crops by supplying carbon dioxide gas to cultivation facilities without power supply facilities, or suitable for cultivation of cultivated crops, because it is composed of batteries detachably provided on the heater body A heater that maintains the temperature can be installed, and the cordless heater allows the user to freely select the location of the heater and eliminates the risk of getting caught on the power cord. Can be planned.

[Brief description of the drawings]

FIG. 1 is a perspective view of a heater showing one embodiment of the present invention.

FIG. 2 is a sectional view of the same heater.

FIG. 3 is a side view of the heater.

FIG. 4 is a front view of the heater.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Heater 3 Gas burner 6 Gas conduit (gas supply path) 12 Piezoelectric terminal (spark type ignition device) 12A Frame detection plug 18, 40 Dry battery 27 Timer device (centralized control device) 29 Timer (timer means) 32 Thermo device ( Centralized control device) 34 Thermo body (Temperature detecting means) 37 Thermo temperature detecting part (Temperature detecting means)

Claims (1)

(57) [Claims] 1. A gas burner for burning gas, a solenoid valve provided in a gas supply path, a spark ignition device for igniting the gas burner, and whether or not the gas burner is burning.
And a centralized control device for automatically operating by a timer means or a temperature detecting means, and a detection signal from the frame detecting plug
While controlling the solenoid valve, the solenoid valve, the spark ignition device and the flame detection
The power of various electrical equipment such as lugs and the power of the central control unit
Power supply, and these power supplies are attached to and detached from the heater body.
A warmer for greenhouse cultivation , comprising a battery provided as possible .