JPH0650915U - Cold wind equipment for work vehicles - Google Patents

Abstract

(57) [Summary] [Purpose] In the cooling of a work vehicle that uses a cold air fan, use the air with the least amount of dust and prevent the water from leaking from the cold air fan. A fan 12 that takes in air from the outside and blows the air to the outside, and a carburetor 14 that cools the air taken in by the fan 12 using the heat of vaporization of water before blowing the air to the outside. The main body case 6 containing the water is attached to the lower surface of the roof 5 of the work vehicle, the water absorbent member 13 impregnated with water is housed in the main body case 6, and the vaporizer 14 is placed on the water absorbent member 13. Then
An air inlet 17 for taking in air into the main body case 6 is opened to face the lower surface side of the roof 5, and a cold air outlet 18 for blowing out cooled air is opened toward the driver's seat side.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cold air device for a work vehicle using a cold air fan.

[0002]

[Prior art]

 There are various types of cold air fans that blow air as cold air after cooling the air taken in from the outside using the heat of vaporization of water, for example, the one disclosed in Japanese Utility Model Publication No. 1-116316. .

The cool air fan disclosed in Japanese Utility Model Laid-Open No. 1-11631 is a fan that takes in air from the outside and blows this air to the outside, and before blowing the air taken in from the outside by this fan. It consists of a vaporizer that uses the heat of vaporization of water to cool it, a case that covers the vaporizer, and a water tank in which the lower end of the vaporizer is immersed. A seal is provided to prevent water in the water tank from leaking into the case that covers the vaporizer.

[0004]

[Problems to be solved by the device]

 When the cold air fan of the above-mentioned type is attached to the lower surface side of the roof of the work vehicle to cool the work vehicle, the work vehicle tilts in accordance with the unevenness or inclination of the field, and the roof rises forward to secure the front view. When tilted to the state, there is a drawback that the water that has permeated the porous member forming the vaporizer overflows into the case and leaks to the outside.

Further, during work, dust and dirt are likely to fly around the work vehicle. When air containing dust and dirt is used for cooling, dust and dirt are included in the cold air that is blown out. This is uncomfortable for the person, and moreover, dust and dirt adhering to the inside of the cold air fan must be removed frequently, which is troublesome.

[0006]

[Means for Solving the Problems] A fan that takes in air from the outside and blows this air to the outside and a heat of vaporization of water before blowing the air taken from the outside by this fan to the outside A main body case containing a carburetor for cooling is attached to the lower surface of the roof of the work vehicle, a water-absorbing member impregnated with water is stored in the main body case, and the carburetor is placed on the water-absorbing member. An air inlet for taking air into the main body case is opened facing the lower surface side of the roof, and a cold air outlet for blowing cooled air is opened toward the driver's seat side.

[0007]

[Action]

 In the environment around the work vehicle, the place on the lower surface side of the roof is the place with the least amount of dust, and the air inlet for taking in air into the main body case is open facing this place. Therefore, the dust and air containing the least dust are taken into the main body case. In addition, since the water in the main body case is impregnated in the water-absorbing member, the water does not bounce up even if the work vehicle vibrates, and water does not leak from the air intake or the cold air outlet. In addition, the air intake is located at the upper part of the main body case by opening the air intake facing the lower surface side of the roof, so that the work vehicle tilts or the front view is secured depending on the unevenness or inclination of the field. Even if the roof is tilted forward, the water that had permeated the carburetor and the water absorbing member will not leak out of the main case unless the roof is steeply inclined.

[0008]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. A vertical frame 3 is erected at the rear of the driver's seat 2 of the combine 1 which is a work vehicle, and a horizontal frame 4 is fixed to the upper end of the vertical frame 3 and the upper side of the driver's seat 2 is fixed to the horizontal frame 4. The roof 5 for covering is fixed. On the lower surface side of the roof 5, a cool air fan main body 6 which is a main body case is attached. The cool air fan body 6 is formed of a lower case 7 and an upper case 8, and a stay 9 fixed to the upper case 8 is fixed to the horizontal frame 4 by bolts 10 together with the roof 5. The lower case 7 and the upper case 8 are fixed by a fastener 11 with a seal member (not shown) interposed.

A fan 12 that takes in air from the outside and blows the taken-in air to the outside in the cold air fan body 6, and a water absorbing member 13 that impregnates the water supplied into the cold air fan body 6. A vaporizer 14 is provided which is placed on the water absorbing member 13 and cools the air taken in by the fan 12 by utilizing the heat of vaporization of water before being blown out to the outside. The vaporizer 14 is formed by a plurality of porous member plates 15 arranged in parallel at equal intervals and a holding frame 16 for holding these porous member plates 15, and a mounting screw (not shown). It is fixed to the lower case 7 by the. Further, the upper case 8 takes in air from the outside, blows out the air (cool air) cooled by the carburetor 14 and the air intake 17 opened to face the lower surface side of the roof 5, and the operation is performed. A cold air outlet 18 that opens toward the seat 2 is formed. Further, a filter 19 is attached to the air intake 17 and a louver 20 for adjusting the blowing direction of the cold air is attached to the cold air outlet 18. Next, the combiner 1 is provided with the louver 20 on the main body side. A water supply tank 21 for storing water to be supplied into the cold air fan main body 6 is mounted and a water supply pump 22 is connected to the water supply tank 21, and further, the water supply pump 22 and the cold air fan main body 6 are connected to each other. Are connected by a water supply pipe 23. Here, in the upper case 8, a control switch 24 for adjusting the rotation speed of the fan 12 and for switching the fan 12 on and off, and for switching the water supply pump 22 on and off. And a water supply switch 25 for performing. Further, a level gauge 26 formed of a transparent member for confirming the amount of water in the cool air fan body 6 is attached to the lower case 7. Further, a sensor 27 for detecting that the amount of water in the cool air fan body 6 has become less than or equal to a set amount is provided in the cool air fan body 6, and the water supply pump is based on the detection result from the sensor 27. A control unit (not shown) that drives 22 is provided.

In such a configuration, when water is supplied into the cold air fan body 6, the water is impregnated in the water absorbent member 13 and further permeates the porous member plate 15. From this state, when the control switch 24 is turned “on” to drive the fan 12, external air is taken into the cool air fan body 6 from the air inlet 17, and the air passes between the porous material plates 15. And blows out from the cold air outlet 18. When this air passes between the porous member plates 15, the water that permeates the porous member plates 15 is vaporized to remove the heat of vaporization from the air, and the heat of vaporization is taken away to thereby increase the temperature. The cooled cold air blows out from the cold air outlet 18.

Next, when the water supply switch 25 is turned on, the water supply pump 22 is driven and the water stored in the water supply tank 21 is supplied into the cool air fan body 6. The water supplied into the cool air fan body 6 is impregnated into the water absorbing member 13 at any time, and the water that cannot be impregnated overflows and collects at the bottom of the cool air fan body 6. Therefore, by confirming this state from the level gauge 26 and turning off the water supply switch 25, the drive of the water supply pump 22 is stopped, and the supply of water from the water supply tank 21 into the cool air fan body 6 is stopped. It

Further, even if the operator does not operate the water supply switch 25, when the sensor 27 detects that the amount of water in the cool air fan body 6 has become equal to or less than the set amount, the water supply pump 22 is activated based on the detection result. It is driven and water is automatically supplied into the cold air fan body 6.

Here, in the environment around the combine 1, the place on the lower surface side of the roof 5 is the place where the dust is the least, and the air intake port 17 for introducing air into the cool air fan body 6 is provided. Since this is open to face this portion, the dust and air containing the least dust are taken into the cool air fan body 6. Therefore, the amount of dust contained in the cold air blown out from the cold air outlet 18 is reduced, and a comfortable working environment can be created. Further, dust and dirt are less attached to the filter 19 and the carburetor 14, so that the interval for cleaning the inside of the filter 19 and the cool air fan main body 6 can be lengthened and the cooling effect is reduced due to the adhesion of dust and dirt. To be prevented.

Further, since the water in the cool air fan body 6 is impregnated in the water absorbing member 13, the water does not bounce even if the combiner 1 vibrates, and the water from the air intake port 17 and the cold air outlet port 18 is discharged. No water leaks. Further, since the air intake 17 is located at the upper part of the main body case 6 by opening the air intake 17 so as to face the lower surface side of the roof 5, the combine 1 may be inclined or moved forward depending on the unevenness or inclination of the field. Even if the roof 5 is tilted forward to assure visibility, the water that has permeated the vaporizer 14 and the water absorbent member 13 leaks out of the cool air fan body 6 unless the roof 5 is steeply inclined. Nothing happens.

[0015]

[Effect of device]

 As described above, the present invention uses a fan that takes in air from the outside and blows this air to the outside, and cools it by using the heat of vaporization of water before blowing the air taken in from the outside by this fan to the outside. The main body case containing the vaporizer to be installed is attached to the lower surface of the roof of the work vehicle, the water absorbing member impregnated with water is stored in the main body case, and the vaporizer is placed on the water absorbing member. Since the air intake that takes in air into the main body case is opened facing the lower surface side of the roof, and the cool air outlet that blows out the cooled air is opened toward the driver's seat side. The lower side of the roof with the entrance opening is the place with the least dust in the environment around the work vehicle, so take in the air containing the least dust in the main case. Can The cool air with the least amount of dust is blown out from the cool air outlet to the driver's side to create a comfortable working environment, and at the same time, the interval for cleaning dust that has entered the body case Since the length of the water is longer, the time and effort required for cleaning can be reduced.Because the water inside the main body case is impregnated into the water absorbing member, it is possible to prevent water splashing even when the work vehicle vibrates. It is also possible to prevent the splashed water from leaking out from the air intake or the cold air outlet, and by opening the air intake facing the underside of the roof, Since it is located at the upper part, even if the work vehicle tilts or the roof is tilted upward to secure the front view, the carburetor and the water absorbent member will be used unless the roof is steep. Watermarks which was water having the effect of such can be prevented with this that leaks to the outside of the main body case.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA in FIG.

FIG. 3 is a side view showing an overall structure of a combine adopting the present invention.

[Explanation of symbols]

 1 Work Vehicle 2 Driver's Seat 5 Roof 6 Main Body Case 12 Fan 13 Water Absorbing Member 14 Vaporizer 17 Air Intake 18 Cold Air Outlet

Claims (1)

[Scope of utility model registration request] 1. A fan for taking in air from the outside and blowing the air to the outside, and a carburetor for cooling the air taken in by the fan from the outside by using the heat of vaporization of water. The stored main body case is attached to the lower surface of the roof of the work vehicle, the water-absorbing member impregnated with water is stored in the main body case, and the vaporizer is placed on the water-absorbing member. A cold air blower for a working vehicle, characterized in that an air intake for taking in air is opened facing the lower surface side of the roof, and a cold air blowout opening for blowing out cooled air is opened toward the driver's seat side. .