JPH1111142A - Air conditioner of working car - Google Patents

Air conditioner of working car

Info

Publication number
JPH1111142A
JPH1111142A JP16418297A JP16418297A JPH1111142A JP H1111142 A JPH1111142 A JP H1111142A JP 16418297 A JP16418297 A JP 16418297A JP 16418297 A JP16418297 A JP 16418297A JP H1111142 A JPH1111142 A JP H1111142A
Authority
JP
Japan
Prior art keywords
air
cabin
air conditioner
unit
top plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP16418297A
Other languages
Japanese (ja)
Inventor
Mitsuru Takenaka
竹中  満
Katsuhide Kato
加藤  勝秀
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kubota Corp
Original Assignee
Kubota Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kubota Corp filed Critical Kubota Corp
Priority to JP16418297A priority Critical patent/JPH1111142A/en
Publication of JPH1111142A publication Critical patent/JPH1111142A/en
Pending legal-status Critical Current

Links

Landscapes

  • Air-Conditioning For Vehicles (AREA)

Abstract

PROBLEM TO BE SOLVED: To improve cooling effect, by forming an air supplying path, which supplies cabin-outside-air from inlet of accommodating chamber which is formed with a roof of a driving cabin and an air conditioner's cover to a condensing device and an evaporating device, with the roof and the air conditioner's cover, and by placing the condensing device upstream of the evaporating device. SOLUTION: On the rear end side of a roof 17a of an air conditioner's cover 17 in a combine's cabin 4, an exhaust port 25 of an accommodating chamber 18 formed by the roof 17a and a roof 4a of the cabin 4 is provided such that it opens upward of the machine, and the exhaust port is air-tightly connected with an exhaust cylinder 11c of the condensing device 11 through a cylinder 26 made of elastic material. An inlet 28 with an inner air filter 27 is formed in downward surface between an evaporating device 13 and the condensing device 11 on the cabin roof 4a, and downstream than the condensing device 11 and an outside air filter 23. The inlet 28 is communicated with the inlet side of the evaporating device 13 through an air supplying path L, and circulates inside air of the driving cabin 4 in the evaporating device 13.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、コンバインや農用
トラクターとかの農用車両、バックホウとかの建設機械
など、運転キャビンを備える作業車の空調装置、詳しく
は、運転キャビン空調のための凝縮装置部および蒸発装
置部を、運転キャビンの天板とこの天板上の空調機カバ
ーとが形成する収容室に設けてある空調装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner for a working vehicle having an operating cabin, such as a combine vehicle, an agricultural vehicle such as a farm tractor, a construction machine such as a backhoe, and more particularly, to a condensing device for air conditioning the operating cabin. The present invention relates to an air conditioner provided in an accommodation room formed by a top plate of an operation cabin and an air conditioner cover on the top plate.

【0002】[0002]

【従来の技術】上記空調装置においては、凝縮装置部が
キャビン外気を冷媒の冷却風として吸引し、蒸発装置部
がキャビン外から吸引して冷却させた空気をキャビン内
に供給することにより、運転キャビンの空調を行うもの
である。
2. Description of the Related Art In the above-mentioned air conditioner, a condensing unit sucks air outside the cabin as cooling air for the refrigerant, and an evaporating unit sucks air from outside the cabin and supplies the cooled air into the cabin. This is for air conditioning of the cabin.

【0003】[0003]

【発明が解決しようとする課題】作業車の場合、殊に作
業時には、比較的低速で走行されることから、走行時で
も空調機の収容室に空気が流入しにくくなる。このよう
に、空気が流入しにくいと、凝縮装置部や蒸発装置部に
も空気が流入しにくくなり、殊に、凝縮装置部に空気の
流入不足が発生すると、冷媒の冷却不良が発生し、冷房
効果が著しく低下する。本発明の目的は、前記収容室に
おける空気流入の割りには優れた冷房効果が得られる作
業車の空調装置を提供することにある。
In the case of a work vehicle, especially at the time of work, the vehicle travels at a relatively low speed, so that it is difficult for air to flow into the accommodation room of the air conditioner even during travel. As described above, if the air does not easily flow, it becomes difficult for the air to flow also to the condenser device and the evaporator device. In particular, when the flow of the air is insufficient for the condensing device, poor cooling of the refrigerant occurs, The cooling effect is significantly reduced. It is an object of the present invention to provide an air conditioner for a work vehicle that can obtain an excellent cooling effect for the air inflow into the storage chamber.

【0004】[0004]

【課題を解決するための手段】請求項1による発明の構
成、作用、効果はつぎのとおりである。
The constitution, operation and effect of the invention according to claim 1 are as follows.

【0005】〔構成〕運転キャビン空調のための凝縮装
置部および蒸発装置部を、運転キャビンの天板とこの天
板上の空調機カバーとが形成する収容室に設けてある作
業車の空調装置において、前記収容室の吸気口からのキ
ャビン外気を前記凝縮装置部および前記蒸発装置部に供
給する空気供給路を、前記天板と前記空調機カバーとに
よって形成するとともに、前記凝縮装置部を前記蒸発装
置部よりも前記空気供給路の上流側に配置してある。
[Construction] A working vehicle air conditioner provided with a condensing unit and an evaporating unit for operating cabin air conditioning in an accommodation room formed by a top plate of the operating cabin and an air conditioner cover on the top plate. In the above, while forming an air supply path for supplying the outside air of the cabin from the suction port of the storage chamber to the condenser unit and the evaporator unit by the top plate and the air conditioner cover, the condenser unit is It is arranged on the upstream side of the air supply path from the evaporator unit.

【0006】〔作用〕収容室に空気が流入しにくくて
も、凝縮装置部が蒸発装置部よりも空気供給路の上流側
に位置していることによって流入空気を優先的に吸引し
て冷媒冷却を確実に行い、蒸発装置部でのキャビン内気
と冷媒との熱交換を効率よく行わせるようにする。
[Operation] Even if it is difficult for air to flow into the storage chamber, the condensing unit is located upstream of the evaporating unit in the air supply path, so that the inflow air is preferentially sucked to cool the refrigerant. And the heat exchange between the air in the cabin and the refrigerant in the evaporator unit is performed efficiently.

【0007】〔効果〕収容室に空気が流入しにくくても
冷媒冷却が確実に行われ、キャビン内の冷房が効果的に
行われて快適に作業できる。
[Effect] Even if air hardly flows into the storage chamber, the cooling of the refrigerant is reliably performed, and the cooling in the cabin is effectively performed, so that the work can be performed comfortably.

【0008】請求項2による発明の構成、作用、効果は
つぎのとおりである。
The structure, operation and effect of the invention according to claim 2 are as follows.

【0009】〔構成〕請求項1による発明の構成におい
て、キャビン内気を前記蒸発装置部に還流させるための
前記天板の吸気口を、前記凝縮装置部よりも前記空気供
給路の下流側に配置してある。
[0010] In the configuration according to the first aspect of the present invention, an intake port of the top plate for returning the air in the cabin to the evaporator unit is disposed downstream of the condensing unit in the air supply path. I have.

【0010】〔作用〕キャビン内から吸気口を介して吸
引される空気が吸気口の前記配置のために凝縮装置部の
方に流出しにくい状態で蒸発装置部に還流して効率よく
再冷却されるように、キャビン内気の循環を行わせられ
る。
[Operation] The air sucked from the cabin via the intake port is returned to the evaporator section in a state where it is difficult for the air to flow toward the condenser section due to the arrangement of the intake port, and is efficiently recooled. Thus, the air in the cabin is circulated.

【0011】〔効果〕冷媒冷却が効率よく行われる他
に、キャビン内気の循環による冷却も効率よく行われ、
キャビン冷却を一層効果的に行える。
[Effect] In addition to the efficient cooling of the refrigerant, the cooling by the circulation of the air in the cabin is also efficiently performed.
Cabin cooling can be performed more effectively.

【0012】請求項3による発明の構成、作用、効果は
つぎのとおりである。
The structure, operation and effect of the invention according to claim 3 are as follows.

【0013】〔構成〕請求項1又は2による発明の構成
において、前記収容室の前記吸気口を機体下方向きに形
成してある。
[Structure] In the structure according to the first or second aspect of the present invention, the intake port of the storage chamber is formed so as to face downward.

【0014】〔作用〕雨水などを吸気口から入りにくく
しながらキャビン外気が空気供給路に吸引されるように
できる。
[Operation] The outside air of the cabin can be sucked into the air supply passage while preventing rainwater or the like from entering through the air inlet.

【0015】〔効果〕雨天時などでも、水が入り込んで
故障するなどのトラブルが発生しにくいものになる。
[Effect] Even in the case of rainy weather, troubles such as break-in due to entry of water hardly occur.

【0016】請求項4による発明の構成、作用、効果は
つぎのとおりである。
The structure, operation and effect of the invention according to claim 4 are as follows.

【0017】〔構成〕請求項3による発明の構成におい
て、前記収容室の前記吸気口を前記収容室の後端部に配
置してある。
[Configuration] In the configuration according to the third aspect of the present invention, the intake port of the storage chamber is disposed at a rear end of the storage chamber.

【0018】〔作用〕吸気口を収容室の横側で機体下向
きに形成すると、吸気口が運転キャビンの横側壁部より
も外側に突出するため、運転キャビンの横幅の割りには
運転部全体の横幅が大になる。これに対し、吸気口が収
容室の後端部に位置することにより、運転キャビンの横
幅を可能な限り広くしながら吸気口を下向きにできる。
[Operation] When the intake port is formed on the lateral side of the accommodation room and directed downward, the intake port protrudes outward from the lateral side wall of the driving cabin. The width becomes large. On the other hand, since the intake port is located at the rear end of the storage chamber, the intake port can be directed downward while the lateral width of the operating cabin is made as large as possible.

【0019】〔効果〕吸気口を下向きにして水進入によ
るトラブル発生を回避しやすくできながら、キャビン横
幅が極力広くて居住性の富んだものにできる。
[Effect] With the intake port facing downward, it is easy to avoid the occurrence of troubles due to water intrusion, and the cabin can be made as wide as possible and rich in livability.

【0020】[0020]

【発明の実施の形態】図1に示すように、稲、麦などの
植立穀稈を引き起こすとともに刈取り、刈取り穀稈を機
体後方に搬送する刈取り前処理部1を、クローラ走行装
置2によって自走するとともにエンジンEを有する原動
部3、運転キャビン4を備える走行機体の前部に昇降操
作自在に連結するとともに、刈取り前処理部1からの刈
取り穀稈を脱穀処理する脱穀装置5、脱穀粒を貯留する
穀粒タンク6、この穀粒タンク6から穀粒を回転スクリ
ューによって搬出する搬出装置7を前記自走機体に備え
させて、コンバインを構成してある。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a crawler traveling unit 2 automatically controls a pre-cutting unit 1 which causes planted grain culms such as rice and wheat, cuts and transports the cut grain culms to the rear of the machine. A threshing device 5 for threshing the harvested culm from the pre-cutting processing unit 1 while being connected to the front of a traveling body having a driving unit 3 having an engine E and an operating cabin 4 and having an engine E, and threshing the harvested culm from the pre-cutting processing unit 1. The self-propelled body is provided with a grain tank 6 for storing the particles, and an unloading device 7 for unloading the grains from the grain tank 6 by a rotary screw, to constitute a combine.

【0021】図2に示すように、前記走行装置2や脱穀
装置5などを駆動する前記エンジンEと、このエンジン
Eに連動させて前記原動部3に設けたコンプレッサー8
とによって圧縮装置部9を構成し、この圧縮装置部9の
コンプレッサー8に媒体循環路10を介して空調機とし
ての凝縮装置部11の凝縮器11aを、媒体循環路12
を介して空調機としての蒸発装置部13の蒸発器13a
をそれぞれ接続するとともに、前記凝縮装置部11の凝
縮器11aと蒸発装置部13の蒸発器13aとを、液冷
媒貯留用の受液装置部14と、膨張弁15とを有する媒
体循環路16によって接続して、空調装置を構成してあ
る。この空調装置は、運転キャビン4の空調を行うもの
であり、詳しくは次の如く構成してある。
As shown in FIG. 2, the engine E which drives the traveling device 2 and the threshing device 5 and the like, and a compressor 8 provided in the driving unit 3 in conjunction with the engine E
And a compressor 11 of the condenser unit 11 serving as an air conditioner is connected to the compressor 8 of the compressor unit 9 via a medium circulation path 10 and a medium circulation path 12
Evaporator 13a of evaporator unit 13 as an air conditioner
And a condenser 11a of the condenser unit 11 and an evaporator 13a of the evaporator unit 13 are connected by a medium circulation path 16 having a liquid receiver storage unit 14 and an expansion valve 15. They are connected to form an air conditioner. This air conditioner performs air conditioning of the driving cabin 4, and is configured in detail as follows.

【0022】図3に示すように、前記凝縮装置部11
は、運転キャビン4の天板4aと、この天板上に位置す
る空調機カバー17とが形成する収容室18のキャビン
後方側に設置してある。前記蒸発装置部13は、前記収
容室18のキャビン前方側に設置してある。
As shown in FIG. 3, the condensing unit 11
Is installed on the rear side of the accommodation room 18 formed by the top plate 4a of the driving cabin 4 and the air conditioner cover 17 located on the top plate. The evaporator unit 13 is installed on the cabin front side of the accommodation room 18.

【0023】図3および図4に示すように、空調機カバ
ー17は、天板部17aと、この天板部17aの周縁部
から延出する前側板部、横側板部、後側板部とによって
形成し、キャビン天板4aの上面側の四隅部に立設する
取付けブラケット19に天板部17aを取付けボルトに
よって締付け連結することによって運転キャビン4に取
り付けるように構成してある。図3および図5に示すよ
うに、空調機カバー17を運転キャビン4に取付ける
と、空調機カバー17の後端部分が運転キャビン4の横
側壁部4bどうしの間でキャビン天板4aよりもキャビ
ン後方側に突出して空調機カバー17と運転キャビン4
との間にキャビン下向きの開口20が形成されるととも
に、キャビン天板4aの周縁部や、前記収容室18を蒸
発装置部13の収容部と、凝縮装置部11の収容部とに
仕切るようにキャビン天板4aが備える仕切り壁部材2
1の縁部に付設してあるシール材としてのウエザースト
リップ22が、図6および図7に明示する如く空調機カ
バー17の側板部や天板部17aの内面側に圧接して、
前記開口20を除く大部分でのキャビン天板4aと空調
機カバー17との間、前記仕切り壁部材21と空調機カ
バー17との間をそれぞれシールする。これにより、前
記開口20が収容室18の後端部において機体下方向き
に開口する収容室18の吸気口20となり、空調機カバ
ー17とキャビン天板4aとが、前記吸気口20を凝縮
装置部11および蒸発装置部13の吸気側に連通させる
空気供給路Lを形成する。この空気供給路Lは、凝縮装
置部11および蒸発装置部13それぞれの電動回転ファ
ン11b,13bの送風作用により、キャビン外気を吸
気口20から吸引して凝縮装置部11および蒸発装置部
13に供給するためのものである。また、この空気供給
路Lは、凝縮装置部11よりも空気流動方向下手側に位
置する蒸発装置部13に対しては、前記仕切り壁部材2
1に形成するとともに外気フィルター23を備えさせて
ある貫通孔21aを通して空気供給するように構成して
ある。前記吸気口20には、キャビン天板4aが支持す
るパンチング板金で成る除塵具24を備えさせてあり、
この除塵具24は、空気供給路Lに流入する空気に混入
するワラ屑などの塵埃を除去する。前記貫通孔21aが
備える前記外気フィルター23は、貫通孔21aから蒸
発装置部13の方に流入する空気にろか作用し、その空
気に混入するワラ屑などの塵埃を除去する。
As shown in FIGS. 3 and 4, the air conditioner cover 17 includes a top plate 17a and a front plate, a lateral plate, and a rear plate extending from the periphery of the top plate 17a. The top plate 17a is attached to the driving cabin 4 by fastening the top plate 17a to a mounting bracket 19 provided at four corners on the upper surface side of the cabin top plate 4a with mounting bolts. As shown in FIGS. 3 and 5, when the air conditioner cover 17 is attached to the operation cabin 4, the rear end of the air conditioner cover 17 is located between the side wall portions 4 b of the operation cabin 4 and the cabin top plate 4 a. The air conditioner cover 17 and the operating cabin 4 projecting rearward
And a cabin downward opening 20 is formed between the evaporator unit 13 and the peripheral portion of the cabin top plate 4a and the accommodating chamber 18 into an accommodating unit of the evaporating unit 13 and an accommodating unit of the condensing unit 11. Partition wall member 2 provided in cabin top plate 4a
The weather strip 22 as a sealing material attached to the edge of the air conditioner 1 is pressed against the side plate of the air conditioner cover 17 and the inner surface of the top plate 17a as clearly shown in FIGS.
The space between the cabin top plate 4a and the air conditioner cover 17 and the space between the partition wall member 21 and the air conditioner cover 17 are sealed in most parts except the opening 20. As a result, the opening 20 becomes the intake port 20 of the accommodation chamber 18 which opens downward at the rear end of the accommodation chamber 18 at the rear end of the accommodation chamber 18, and the air conditioner cover 17 and the cabin top plate 4a connect the intake port 20 to the condenser unit. An air supply passage L communicating with the suction side of the evaporator 11 and the evaporator unit 13 is formed. The air supply passage L sucks the outside air of the cabin from the intake port 20 and supplies the air to the condenser unit 11 and the evaporator unit 13 by the blowing action of the electric rotating fans 11b and 13b of the condenser unit 11 and the evaporator unit 13, respectively. It is for doing. Further, the air supply passage L is connected to the partition wall member 2 with respect to the evaporator unit 13 located on the lower side in the air flow direction than the condenser unit 11.
1, and air is supplied through a through-hole 21a provided with an outside air filter 23. The intake port 20 is provided with a dust remover 24 made of a punched sheet metal supported by the cabin top plate 4a,
The dust remover 24 removes dust such as straw chips mixed into the air flowing into the air supply path L. The outside air filter 23 provided in the through hole 21a acts on the air flowing into the evaporator unit 13 from the through hole 21a, and removes dust such as straw chips mixed into the air.

【0024】図3および図4に示すように、空調機カバ
ー17の天板部17aの後端側に排気口25を備えさせ
るとともに、凝縮装置部11の排気筒11cに接続して
いる弾性材製の筒体26により、排気筒11cからの排
出風が収容室18に漏れ出ないで排気口25から流出し
ていくように排気筒11cと天板部17aとの間をシー
ルしてある。これにより、排気口25は、空調機カバー
17の天板17aで成る収容室18の天板において前記
吸気口20とは異なる方向としての機体上向きに開口す
る収容室18の排気口となり、凝縮装置部11からの排
出風を収容室18の外部に排出する。
As shown in FIGS. 3 and 4, an exhaust port 25 is provided at the rear end side of the top plate 17a of the air conditioner cover 17, and an elastic member connected to the exhaust pipe 11c of the condenser unit 11 is provided. The exhaust pipe 11c and the top plate 17a are sealed by a cylindrical body 26 such that the exhaust air from the exhaust pipe 11c flows out of the exhaust port 25 without leaking into the storage chamber 18. As a result, the exhaust port 25 becomes an exhaust port of the housing chamber 18 that opens upward in the body, which is a direction different from the intake port 20, on the top plate of the housing chamber 18 formed of the top board 17 a of the air conditioner cover 17. The air discharged from the unit 11 is discharged to the outside of the accommodation room 18.

【0025】キャビン天板4aの蒸発装置部13と凝縮
装置部11との間の下向き面部分に、内気フィルター2
7を備える吸気口28を形成してある。この吸気口28
は、前記空気供給路Lの凝縮装置部11および外気フィ
ルター23よりも下流側に位置して空気供給路Lを介し
て蒸発装置部13の吸気側に連通し、運転キャビン4の
内部空気が蒸発装置部13に還流することを可能にす
る。前記内気フィルター27は、蒸発装置部13に還流
するべく空気供給路Lに流入する空気にろか作用し、そ
の空気に混入する塵埃を除去する。キャビン天板4aの
前記吸気口28よりも少しキャビン前方側に位置する下
向き面部分に吹出口29を、キャビン内上部の両横端側
に折り曲げ加工したキャビン天板4の端部分で形成した
横向き面部分に吹出口30をそれぞれ形成するととも
に、いずれの吹出口29,30も蒸発装置部13の排気
側に連通させてある。
The inside air filter 2 is provided on the downward surface of the cabin top plate 4a between the evaporator unit 13 and the condenser unit 11.
7 is formed. This inlet 28
Is located downstream of the condenser unit 11 and the outside air filter 23 of the air supply passage L, communicates with the intake side of the evaporator unit 13 through the air supply passage L, and evaporates the internal air of the operation cabin 4. It is possible to return to the device unit 13. The inside air filter 27 acts on the air flowing into the air supply path L so as to return to the evaporator unit 13, and removes dust mixed in the air. An air outlet 29 is formed on a downward surface portion of the cabin top plate 4a which is located slightly forward of the intake port 28 than the intake port 28. The air outlets 30 are respectively formed in the surface portions, and both the air outlets 29 and 30 are communicated with the exhaust side of the evaporator unit 13.

【0026】つまり、圧縮装置部9は、エンジンEによ
ってコンプレッサー8を駆動し、このコンプレッサー8
によって冷媒を圧縮処理する。圧縮処理された冷媒は、
媒体循環路10を通って凝縮装置部11の凝縮器11a
に流入する。凝縮装置部11は、回転ファン11bによ
る送風作用により、キャビン外気を前記吸気口20から
空気供給路Lを介して凝縮器11aに冷却風として導入
して冷媒の冷却処理を行い、この冷媒冷却のための温度
上昇した熱風を排気口25から収容室18の外部に排出
する。冷却処理された冷媒は、媒体循環路16の膨張弁
15を通り、温度低下して蒸発装置部13の蒸発器13
aに流入する。蒸発装置部13は、ファン13bによる
送風作用により、キャビン外気を前記吸気口20から空
気供給路Lに吸引し、外気フィルター23を通して塵埃
除去した状態で蒸発器13aに導入し、キャビン内気を
前記天板吸気口28から内気フィルター27を通して塵
埃除去した状態で空気供給路Lに吸引して蒸発器13a
に導入し、キャビン外からの空気と、キャビン内からの
空気とを合流させて冷却し、温度低下した合流空気を吹
出口29と30とからキャビン内に送り込む。蒸発装置
部13の蒸発器13aで空気の冷却作用を果たした冷媒
は、媒体循環路12を通って圧縮装置部9のコンプレッ
サー8に戻り、再度圧縮処理される。これにより、蒸発
装置部13は、キャビン内気を運転キャビン4と蒸発装
置部13との間で循環させてキャビン内を冷房する空調
と、キャビン外気を冷却させてキャビン内に送り込んで
冷房する空調とを行う。
That is, the compressor unit 9 drives the compressor 8 by the engine E, and the compressor 8
Compresses the refrigerant. The compressed refrigerant is
The condenser 11a of the condenser unit 11 passes through the medium circulation path 10.
Flows into. The condensing unit 11 introduces the outside air of the cabin into the condenser 11a from the intake port 20 through the air supply path L as a cooling air by a blowing action of the rotating fan 11b to perform a cooling process of the refrigerant, thereby performing the cooling of the refrigerant. The hot air whose temperature has risen is discharged from the exhaust port 25 to the outside of the storage chamber 18. The cooling-processed refrigerant passes through the expansion valve 15 of the medium circulation path 16, and its temperature is reduced, and the evaporator 13 of the evaporator unit 13 is cooled.
flows into a. The evaporator unit 13 sucks the outside air of the cabin from the intake port 20 into the air supply path L by the blowing action of the fan 13b, and introduces the air inside the cabin into the evaporator 13a in a state where dust has been removed through the external air filter 23. The dust is removed from the plate intake port 28 through the inside air filter 27 and is sucked into the air supply path L to evaporate 13a.
The air from the outside of the cabin and the air from the inside of the cabin are combined and cooled, and the combined air whose temperature has dropped is sent into the cabin from the outlets 29 and 30. The refrigerant that has performed the cooling function of the air in the evaporator 13a of the evaporator unit 13 returns to the compressor 8 of the compressor unit 9 through the medium circulation path 12, and is compressed again. Thereby, the evaporator unit 13 circulates air inside the cabin between the operating cabin 4 and the evaporator unit 13 to cool the cabin, and cools the outside air of the cabin and sends it into the cabin for cooling. I do.

【0027】図2に示すように、前記蒸発装置部13の
蒸発器13aに、ウォータバルブ31を有する媒体循環
路32を接続してある。この媒体循環路32は、原動部
3で温度上昇した熱媒を蒸発器13aに供給し、この蒸
発器13aで温度低下した熱媒を原動部3に戻して再度
温度上昇させ、蒸発装置部13の回転ファン13bによ
って吹出口29,30から運転キャビン4に温風を送り
込んで暖房することを可能にするものである。
As shown in FIG. 2, a medium circulation path 32 having a water valve 31 is connected to the evaporator 13a of the evaporator unit 13. The medium circulation path 32 supplies the heat medium whose temperature has risen in the driving unit 3 to the evaporator 13a, returns the heat medium whose temperature has fallen in the evaporator 13a to the driving unit 3 and raises the temperature again. It is possible to feed warm air from the outlets 29 and 30 to the operation cabin 4 by the rotary fan 13b for heating.

【0028】図7(イ)に明示するように、前記内気フ
ィルター27は、吸気口28の周囲でキャビン天板4a
の下面側に取付けねじ33によって締め付けることによ
り、運転キャビン4の内部に取り外せるように着脱自在
に取り付けてある。前記外気フィルター23は、前記吸
気口28の直上方に位置する取付け位置で、かつ、上端
側が下端側よりも蒸発装置部13の方に近づく状態にキ
ャビン天板4aに対して傾斜する取付け姿勢で前記仕切
り壁部材21に取り付けてある。仕切り壁部材21の両
側面のうちの前記吸気口28に対向する方の側面がわ
に、前記貫通孔21aの全周囲にわたるフィルター受止
め部21bを備えさせ、図8に示す如く外気フィルター
23の周縁部に当て付けて外気フィルター23のフィル
ター受止め部21bからの外れ止めを行うように構成し
た当付け部材34を外気フィルター23の両横側に位置
する取付けボルト35で仕切り壁部材21に締め付け連
結することにより、外気フィルター23を仕切り壁部材
21の吸気口28に面する方の側面がわに着脱自在に取
り付けてあり、外気フィルター23を吸気口28を通し
て運転キャビン4の内側に取り外すことを可能にしてあ
る。すなわち、内気フィルター27および外気フィルタ
ー23の清掃とか交換とかを行う際には、内気フィルタ
ー27を運転キャビン4の内部から着脱し、外気フィル
ター23は、図7(ロ)に示す如く内気フィルター27
を取り外した吸気口28を介して運転キャビン4の内部
から着脱するのである。
As clearly shown in FIG. 7 (a), the inside air filter 27 is provided around the intake port 28 around the cabin top plate 4a.
It is detachably attached to the lower surface side of the operating cabin 4 by being tightened with a mounting screw 33 so as to be detachable inside the operating cabin 4. The outside air filter 23 is mounted at a mounting position located directly above the air inlet 28, and in a mounting posture in which the upper end is inclined with respect to the cabin top plate 4a with the upper end closer to the evaporator unit 13 than the lower end. It is attached to the partition wall member 21. The side of the partition wall member 21 facing the intake port 28 is provided with a filter receiving portion 21b around the entire periphery of the through hole 21a. An abutting member 34 configured to be applied to the peripheral portion to prevent the outside air filter 23 from coming off from the filter receiving portion 21b is fastened to the partition wall member 21 by mounting bolts 35 located on both sides of the outside air filter 23. By connecting, the outside air filter 23 is removably attached to the side of the partition wall member 21 facing the intake port 28, and the outside air filter 23 can be removed inside the operation cabin 4 through the intake port 28. It is possible. That is, when performing cleaning or replacement of the inside air filter 27 and the outside air filter 23, the inside air filter 27 is detached from the inside of the operation cabin 4, and the outside air filter 23 is attached to the inside air filter 27 as shown in FIG.
Is removed from the inside of the driving cabin 4 through the intake port 28 from which the air is removed.

【0029】図5および図9に示すように、前記受液装
置部14を運転キャビン4の左右の後側角のうちの一方
の後側角の付近に運転キャビン4の横側壁4bにキャビ
ン上下方向に沿わせて配置し、前記媒体循環路10,1
2,32を形成するパイプを前記両後側角のうちの他方
の後側角の付近に運転キャビン4の横側壁4bにキャビ
ン上下方向に沿って通るように配置してある。すなわ
ち、運転キャビン4の両横側壁4b,4bの後端部を運
転キャビン4の左右方向での内側に入り込むように屈曲
形成することにより、一方の横側壁部4bの後端部の屈
曲壁部分4cの外面側に、キャビン上下方向に長い形状
で上端側が空調機カバー17の内側で前記収容室18に
連通する装置収容部36を形成し、この装置収容部36
に受液装置部14を前記媒体循環路16の接続する上端
側が前記収容室18に入り込む状態で配置してある。そ
して、装置収容部36の外周側を覆うように横断面L字
形状に形成した収容部カバー37によって受液装置部1
4の外周側を覆ってある。前記両横側壁4b,4bのう
ちの他方の横側壁部4bの後端部の前記屈曲壁部分4c
の外面側に、キャビン上下方向に長い形状で上端側が空
調機カバー17の内側で前記収容室18に連通し、下端
側がキャビン下方向きに開口するパイプ収容部38を形
成し、このパイプ収容部38に、媒体循環路10,1
2,32を形成するパイプを、パイプ収容部38を上下
に挿通するようにして配置してある。凝縮装置部11や
蒸発装置部13などを制御するための電気コード39
や、キャビン天板4aの上に入り込んだ雨水などの水を
キャビン天板4aの後端側から排出するドレンホース4
0も前記パイプ収容部38にこれを上下に挿通するよう
にして配置してある。そして、パイプ収容部38の外周
側を覆うように横断面L字形状に形成した収容部カバー
41によって媒体循環路10,12,32、電気コード
39、ドレンホース40の外周側を覆ってある。
As shown in FIGS. 5 and 9, the liquid receiving unit 14 is mounted on the lateral side wall 4b of the operating cabin 4 near one of the left and right rear corners of the operating cabin 4. And the medium circulation paths 10, 1
The pipes forming the pipes 2 and 32 are arranged in the vicinity of the other rear corner of the two rear corners on the side wall 4b of the driving cabin 4 so as to pass along the vertical direction of the cabin. That is, the rear end portions of both lateral side walls 4b, 4b of the driving cabin 4 are bent so as to enter inside the driving cabin 4 in the left-right direction, so that the bent wall portion of the rear end portion of one of the side wall portions 4b is formed. On the outer surface side of the housing 4c, a device housing portion 36 which is long in the cabin vertical direction and whose upper end communicates with the housing room 18 inside the air conditioner cover 17 is formed.
The liquid receiving device section 14 is disposed such that the upper end side of the medium circulation path 16 connected to the storage chamber 18 enters the storage chamber 18. Then, the liquid receiving device section 1 is formed by a housing section cover 37 formed in an L-shaped cross section so as to cover the outer peripheral side of the apparatus housing section 36.
4 is covered. The bent wall portion 4c at the rear end of the other one of the two side walls 4b, 4b
On the outer surface side, a pipe housing portion 38 having a shape that is long in the vertical direction of the cabin and whose upper end communicates with the housing chamber 18 inside the air conditioner cover 17 and whose lower end opens downward in the cabin, is formed. In addition, the medium circulation paths 10 and 1
The pipes forming the pipes 2 and 32 are arranged so that the pipe accommodating section 38 is inserted vertically. Electric cord 39 for controlling the condensing unit 11 and the evaporating unit 13
And a drain hose 4 for discharging water such as rainwater that has entered the cabin top plate 4a from the rear end side of the cabin top plate 4a.
Reference numeral 0 is also arranged so as to be inserted vertically into the pipe housing 38. The outer peripheral sides of the medium circulation paths 10, 12, 32, the electric cord 39, and the drain hose 40 are covered by an accommodating section cover 41 formed in an L-shaped cross section so as to cover the outer peripheral side of the pipe accommodating section 38.

【0030】図3および図9に示すように、運転キャビ
ン4の後側壁4dを、前記左右横側壁4bの屈曲壁部分
4cどうしの間に位置する透明板で作成するとともに、
後側壁4dの上端側に位置するキャビン横方向の軸芯X
まわりで揺動操作することにより、遊端側が運転キャビ
ン4から外側に上昇して突出する開き姿勢と、遊端側が
両横側壁4b,4bの屈曲壁部分4cどうしの間に下降
して入り込む閉じ姿勢とに開閉できるように取り付けて
ある。後側壁4dの閉じ姿勢は、図3に示す傾斜姿勢に
設定してある。すなわち、上端側が前記吸気口20より
もキャビン前方側に位置し、下端側ほど上端側よりもキ
ャビン後方側に位置する傾斜姿勢に設定してある。これ
により、閉じた場合の後側壁は4dは、上端側において
は外面側に空気が吸気口20に流入するスペースを形成
し、下端側においては極力キャビン前後方向に長いキャ
ビン内スペースを形成する。
As shown in FIGS. 3 and 9, the rear side wall 4d of the driving cabin 4 is made of a transparent plate located between the bent wall portions 4c of the left and right lateral side walls 4b.
Axle X in the lateral direction of the cabin located on the upper end side of rear wall 4d
By swinging around, the free end side rises outward from the driving cabin 4 and protrudes outward, and the free end side closes down between the bent wall portions 4c of the two side walls 4b, 4b. It is attached so that it can be opened and closed with the posture. The closing posture of the rear side wall 4d is set to the inclined posture shown in FIG. That is, the inclined position is set such that the upper end side is located on the front side of the cabin with respect to the intake port 20, and the lower end side is located on the rear side of the cabin with respect to the upper end side. Thus, the rear wall 4d when closed, forms a space for air to flow into the intake port 20 on the outer surface on the upper end side, and forms a cabin space as long as possible in the front-rear direction of the cabin on the lower end side.

【0031】図6に示すホース42は、蒸発装置部13
から排出される除湿水などキャビン天板4aの上にでき
る水をキャビン天板4aの前端側から排出するドレンホ
ースであり、図1に破線で示す如く運転キャビン4の乗
降口の前側にキャビン上下方向に沿って位置するキャビ
ンフレームの内部に配置してある。
The hose 42 shown in FIG.
Is a drain hose that discharges water formed on the cabin top plate 4a such as dehumidified water discharged from the front end side of the cabin top plate 4a, as shown by a broken line in FIG. It is located inside the cabin frame located along the direction.

【図面の簡単な説明】[Brief description of the drawings]

【図1】コンバイン全体の側面図FIG. 1 is a side view of the entire combine.

【図2】空調装置の概略図FIG. 2 is a schematic diagram of an air conditioner.

【図3】凝縮装置部および蒸発装置部の配設部の断面図FIG. 3 is a sectional view of an arrangement portion of a condensing unit and an evaporating unit.

【図4】凝縮装置部および蒸発装置部の配設部の斜視図FIG. 4 is a perspective view of an arrangement portion of a condensing unit and an evaporating unit.

【図5】受液装置部の配設部の断面図FIG. 5 is a sectional view of an arrangement portion of the liquid receiving device section.

【図6】キャビン天板と空調機カバーの断面図FIG. 6 is a sectional view of a cabin top plate and an air conditioner cover.

【図7】外気フィルターと内気フィルターの配設部の断
面図
FIG. 7 is a sectional view of a portion where an outside air filter and an inside air filter are provided.

【図8】外気フィルターの斜視図FIG. 8 is a perspective view of an outside air filter.

【図9】運転キャビンの後面図FIG. 9 is a rear view of the driving cabin.

【符号の説明】[Explanation of symbols]

4 運転キャビン 4a 天板 11 凝縮装置部 13 蒸発装置部 17 空調機カバー 18 収容室 20 収容室の吸気口 28 天板の吸気口 L 空気供給路 Reference Signs List 4 Operating cabin 4a Top plate 11 Condenser unit 13 Evaporator unit 17 Air conditioner cover 18 Storage room 20 Storage room intake port 28 Top plate intake port L Air supply path

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 運転キャビン空調のための凝縮装置部お
よび蒸発装置部を、運転キャビンの天板とこの天板上の
空調機カバーとが形成する収容室に設けてある作業車の
空調装置であって、 前記収容室の吸気口からのキャビン外気を前記凝縮装置
部および前記蒸発装置部に供給する空気供給路を、前記
天板と前記空調機カバーとによって形成するとともに、
前記凝縮装置部を前記蒸発装置部よりも前記空気供給路
の上流側に配置してある作業車の空調装置。
A condensing device and an evaporating device for operating cabin air conditioning are provided by a working vehicle air conditioner provided in a storage room formed by a top plate of the operating cabin and an air conditioner cover on the top plate. An air supply path for supplying the outside air of the cabin from the suction port of the storage chamber to the condenser unit and the evaporator unit is formed by the top plate and the air conditioner cover,
An air conditioner for a work vehicle, wherein the condensing unit is disposed on the upstream side of the air supply path from the evaporating unit.
【請求項2】 キャビン内気を前記蒸発装置部に還流さ
せるための前記天板の吸気口を、前記凝縮装置部よりも
前記空気供給路の下流側に配置してある請求項1記載の
作業車の空調装置。
2. The work vehicle according to claim 1, wherein an intake port of the top plate for circulating the air in the cabin to the evaporator unit is disposed downstream of the condensing unit in the air supply path. Air conditioner.
【請求項3】 前記収容室の前記吸気口を機体下方向き
に形成してある請求項1又は2記載の作業車の空調装
置。
3. The air conditioner for a work vehicle according to claim 1, wherein the air intake port of the storage chamber is formed so as to face downward.
【請求項4】 前記収容室の前記吸気口を前記収容室の
後端部に配置してある請求項3記載の作業車の空調装
置。
4. The air conditioner for a work vehicle according to claim 3, wherein the intake port of the storage chamber is arranged at a rear end of the storage chamber.
JP16418297A 1997-06-20 1997-06-20 Air conditioner of working car Pending JPH1111142A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16418297A JPH1111142A (en) 1997-06-20 1997-06-20 Air conditioner of working car

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16418297A JPH1111142A (en) 1997-06-20 1997-06-20 Air conditioner of working car

Publications (1)

Publication Number Publication Date
JPH1111142A true JPH1111142A (en) 1999-01-19

Family

ID=15788271

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16418297A Pending JPH1111142A (en) 1997-06-20 1997-06-20 Air conditioner of working car

Country Status (1)

Country Link
JP (1) JPH1111142A (en)

Similar Documents

Publication Publication Date Title
US11014426B2 (en) Agricultural vehicle cab fitted with an HVAC system
JP4996412B2 (en) Combine
JPH1111144A (en) Air conditioner for working vehicle
JPH1111143A (en) Air conditioner for working vehicle
JP5667950B2 (en) Combine
JPH1111142A (en) Air conditioner of working car
JP3883293B2 (en) Combine
JP2006218908A (en) Air conditioner for cabin of working machine vehicle
JP2000005541A (en) Harvesting machine
JP3789896B2 (en) Air conditioner for work vehicle
JP7534250B2 (en) combine
JP2007030723A (en) Damper unit and air conditioner
JPH1111140A (en) Air conditioner for working vehicle
JPH1111141A (en) Drain structure of working car
JP2005231448A (en) Working vehicle
JP4085365B2 (en) Air conditioner for vehicles
JP3655332B2 (en) Engine cooling system for mobile agricultural machines
WO2022202011A1 (en) Combine harvester
WO2022202010A1 (en) Combine harvester
JP7534251B2 (en) combine
JP2001171340A (en) Air conditioner for moving vehicle
JP3789897B2 (en) Air conditioner for work vehicle
JP2591938Y2 (en) Cooling system for engine in tractor
JP3264011B2 (en) Drive unit structure of combine with cabin
JP3784359B2 (en) Speed sprayer