JPH11155256A - Motor-driven vehicle with cooling device - Google Patents

Motor-driven vehicle with cooling device

Info

Publication number
JPH11155256A
JPH11155256A JP9320208A JP32020897A JPH11155256A JP H11155256 A JPH11155256 A JP H11155256A JP 9320208 A JP9320208 A JP 9320208A JP 32020897 A JP32020897 A JP 32020897A JP H11155256 A JPH11155256 A JP H11155256A
Authority
JP
Japan
Prior art keywords
vehicle body
motor
heat
electric motor
vehicle
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
JP9320208A
Other languages
Japanese (ja)
Inventor
Noritaka Ito
徳孝 伊藤
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.)
TCM Corp
Original Assignee
Toyo Umpanki Co Ltd
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 Toyo Umpanki Co Ltd filed Critical Toyo Umpanki Co Ltd
Priority to JP9320208A priority Critical patent/JPH11155256A/en
Publication of JPH11155256A publication Critical patent/JPH11155256A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/64Electric machine technologies in electromobility

Landscapes

  • Motor Or Generator Cooling System (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a motor-driven vehicle with a cooing device, in which heat from a heat generating part in a motor-driven device is adequately absorbed and into which rainwater and dust hardly infiltrate from the side of a discharge passage. SOLUTION: A cooling wind is made to flow into a passage 50 for a cooling wind, via a supply route 51 on the side of a vehicle body 2, and after that, it is discharged from a discharge passage 58 on the side of the vehicle body 2. Thereby, the heat from a heat generating part (heat from a motor, heat from a brake or the like) in a motor-driven apparatus 30 can be absorbed adequately. The passage 50 for the cooling wind is formed, in such a way that the discharge passage (wind exit) 58 is provided in a suitable position at one place on the side of the vehicle body 2. Thereby, rainwater and dust hardly infiltrate from the side of the discharge passage 58.

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、たとえば前部にバ
ケット装置を装着した建設車両など電動駆動式車両に関
するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrically driven vehicle such as a construction vehicle having a bucket device mounted on a front portion thereof.

【0002】[0002]

【従来の技術】たとえば大型の建設車両として、車体側
と車輪との間に電動駆動装置が設けられ、この電動駆動
装置が、車体側に設けられた電動機と、この電動機の駆
動軸に連動されかつ車輪ホイール内に配設されたブレー
キ装置付き減速機とから構成された形式が提供されてい
る。
2. Description of the Related Art For example, as a large construction vehicle, an electric drive device is provided between a vehicle body and wheels, and the electric drive device is interlocked with an electric motor provided on the vehicle body and a drive shaft of the electric motor. And a speed reducer with a brake device disposed in the wheel.

【0003】[0003]

【発明が解決しようとする課題】しかし、上記した従来
構成によると、電動機を冷却するために多量の冷却風が
必要になり、冷却風の通し方、冷却風排出口からの雨水
や塵埃の侵入に対する処理が重要な問題となる。
However, according to the conventional configuration described above, a large amount of cooling air is required to cool the motor, and the way of passing the cooling air, and the intrusion of rainwater and dust from the cooling air discharge port. Is an important issue.

【0004】そこで本発明のうち請求項1記載の発明
は、電動駆動装置における発熱部分の熱吸収を充分に行
え、しかも排出路側から雨水、塵埃が侵入することが殆
どない冷却装置付き電動駆動式車両を提供することを目
的としたものである。
Therefore, the invention according to claim 1 of the present invention can sufficiently absorb the heat of the heat generating portion of the electric drive device, and furthermore, the electric drive type with a cooling device that hardly allows rainwater and dust to enter from the discharge path side. It is intended to provide a vehicle.

【0005】[0005]

【課題を解決するための手段】前述した目的を達成する
ために、本発明のうちで請求項1記載の冷却装置付き電
動駆動式車両は、車体側と車輪との間に電動駆動装置が
設けられ、この電動駆動装置は、車体側に設けられた電
動機と、この電動機の駆動軸に連動されかつ車輪ホイー
ル内に配設されたブレーキ装置付き減速機とを有し、前
記車体から電動駆動装置の部分に亘って、この電動駆動
装置における発熱部分の熱吸収を行う冷却風用経路が、
車体側に供給路と排出路を有せしめて形成されているこ
とを特徴としたものである。
In order to achieve the above-mentioned object, an electric drive type vehicle with a cooling device according to the present invention is provided with an electric drive device between a vehicle body and wheels. The electric drive device includes an electric motor provided on the vehicle body side, and a speed reducer with a brake device interlocked with a drive shaft of the electric motor and disposed in a wheel. The cooling air path for absorbing the heat of the heat generating portion of the electric drive device over the portion of
The supply passage and the discharge passage are formed on the vehicle body side.

【0006】したがって請求項1の発明によると、電力
を電動駆動装置の電動機に供給して、この電動機を駆動
することで、駆動軸の回転を、ブレーキ付き減速機を介
して車輪ホイールに伝達し、これにより車輪を正または
逆に強制駆動し得、以て電動駆動式車両を前または後に
走行し得る。そしてブレーキ作用させることで、電動駆
動式車両を停止し得る。その際に冷却風を、車体側の供
給路を介して冷却風用経路に流入させたのち、車体側の
排出路から排出させることで、電動駆動装置における発
熱部分(モータ熱やブレーキ熱など)の熱吸収を充分に
行える。また冷却風用経路は、車体側の一箇所で好適な
位置に排出路(風出口)を有せしめて形成されることか
ら、この排出路側から雨水、塵埃が侵入することが殆ど
ない。
Therefore, according to the first aspect of the present invention, the electric power is supplied to the electric motor of the electric driving device to drive the electric motor, whereby the rotation of the driving shaft is transmitted to the wheel via the speed reducer with the brake. Thus, the wheels can be forcibly driven in the forward or reverse direction, so that the electrically driven vehicle can travel forward or backward. Then, the electric drive type vehicle can be stopped by applying the brake. At this time, the cooling air flows into the cooling air path through the supply path on the vehicle body side, and then is discharged from the discharge path on the vehicle body side, thereby generating heat in the electric drive device (motor heat, brake heat, etc.). Can be sufficiently absorbed. In addition, since the cooling air path is formed with a discharge path (air outlet) at a suitable position at one location on the vehicle body side, rainwater and dust hardly enter from the discharge path side.

【0007】また本発明の請求項2記載の冷却装置付き
電動駆動式車両は、上記した請求項1記載の構成におい
て、冷却風用経路は、車体内から電動機内を通り、電動
機とブレーキ装置付き減速機との間に設けられた隔壁部
と電動機外面との間を通り、電動機の外側を通ったの
ち、車体内へ戻るように形成されていることを特徴とし
たものである。
According to a second aspect of the present invention, there is provided an electrically driven vehicle with a cooling device, wherein the cooling air path passes from the inside of the vehicle body to the inside of the electric motor, and is provided with the electric motor and the brake device. It is characterized by being formed so as to pass between the partition provided between the speed reducer and the outer surface of the electric motor, pass through the outside of the electric motor, and then return into the vehicle body.

【0008】したがって請求項2の発明によると、車体
側の供給路から冷却風を電動機内へ流すことで、電動機
で発生した熱を吸収し得る。次いで冷却風を、隔壁部と
電動機外面との間に流すことで、ブーキ装置で発生した
ブレーキ熱により加熱されている隔壁部の熱を吸収し得
る。
Therefore, according to the second aspect of the present invention, heat generated by the motor can be absorbed by flowing cooling air from the supply passage on the vehicle body side into the motor. Next, by flowing cooling air between the partition and the outer surface of the motor, the heat of the partition heated by the brake heat generated in the bouquet device can be absorbed.

【0009】[0009]

【発明の実施の形態】以下に、本発明の実施の形態を図
に基づいて説明する。電動駆動式車両の一例である建設
車両1の車体2は、左右一対の前車輪3が設けられた前
車体部2Aと、左右一対の後車輪4が設けられた後車体
部2Bからなる。両車体部2A,2B間は、上下に振り
分けられた縦連結軸5により相対回動自在に連結され、
そして両車体部2A,2B間には、ステアリングシリン
ダ6が配設されている。
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. A vehicle body 2 of a construction vehicle 1, which is an example of an electrically driven vehicle, includes a front vehicle body portion 2A provided with a pair of left and right front wheels 3 and a rear vehicle body portion 2B provided with a pair of left and right rear wheels 4. The two body parts 2A, 2B are relatively rotatably connected by a vertical connection shaft 5 distributed up and down,
A steering cylinder 6 is disposed between the two vehicle body parts 2A and 2B.

【0010】後車体部2Bの前端上部には、座席や各種
レバーなどが配置された運転部7が設けられている。こ
の運転部7の前方には左右一対のブーム8が配設され、
これらブーム8の基端は、前車体部2Aの後端上部に設
けられたブラケット9に、左右方向の支軸10を介して
取付けられ、以て上下揺動自在に構成される。そして前
車体部2Aとブーム8との間には、このブーム8を上下
揺動させる荷役シリンダ11が設けられる。
[0010] At an upper portion of the front end of the rear body portion 2B, there is provided an operating section 7 in which seats, various levers and the like are arranged. A pair of right and left booms 8 are disposed in front of the driving unit 7.
The base ends of these booms 8 are attached to brackets 9 provided at the upper rear end of the front vehicle body 2A via support shafts 10 in the left-right direction, so that they can swing up and down. A cargo handling cylinder 11 for vertically swinging the boom 8 is provided between the front vehicle body 2A and the boom 8.

【0011】両ブーム8の遊端間には、左右方向の横ピ
ン12を介してバケット装置(作業装置)13が取付け
られている。そして、ブーム8にピン14を介して取付
けられた第一リンク15の遊端に第二リンク16がピン
17により連結され、この第二リンク16の遊端とバケ
ット装置13とがピン18により連結されている。前記
第一リンク15の基端とブーム8との間に、前記バケッ
ト装置13を横ピン12の周りに回動させるバケットシ
リンダ19が設けられている。
A bucket device (working device) 13 is mounted between the free ends of both booms 8 via horizontal pins 12 in the left-right direction. A second link 16 is connected to a free end of a first link 15 attached to the boom 8 via a pin 14 by a pin 17, and the free end of the second link 16 is connected to the bucket device 13 by a pin 18. Have been. Between the base end of the first link 15 and the boom 8, a bucket cylinder 19 for rotating the bucket device 13 around the horizontal pin 12 is provided.

【0012】前記前車体部2Aには油圧ポンプ20が設
けられ、また後車体部2Bには、送風機21、発電機2
2、エンジン23、ラジエータ24などが、前から後ろ
へとこの順で配設されている。そして、前車体部2Aと
後車体部2Bとに亘ってプロペラシャフト25が配設さ
れている。
A hydraulic pump 20 is provided on the front body part 2A, and a blower 21 and a generator 2 are provided on the rear body part 2B.
2. The engine 23, the radiator 24, etc. are arranged in this order from front to back. Further, a propeller shaft 25 is disposed between the front vehicle body portion 2A and the rear vehicle body portion 2B.

【0013】前車輪3の前車体部2Aに対する取付け
や、後車輪4の後車体部2Bに対する取付けは、同様な
構成の電動駆動装置30を介して行われる。すなわち、
前車体部2Aや後車体部2Bの所定箇所にはリング部材
26が固定され、このリング部材26からは外筒部材3
1が側外方へ連設されるとともに、内筒部材32が内方
へと連設されている。前記外筒部材31内には電動機
(電動モータ)33が設けられ、この電動機33は、そ
の内端部分が前記リング部材26により支持され、また
外端部分は、外筒部材31の内面から連設されたリング
体34に支持されている。さらに電動モータ33には、
内筒部材32内に位置される状態で緊急用ステアリング
ポンプ35が取付けられている。
The attachment of the front wheels 3 to the front body portion 2A and the attachment of the rear wheels 4 to the rear body portion 2B are performed through an electric drive device 30 having a similar configuration. That is,
A ring member 26 is fixed to predetermined portions of the front vehicle body portion 2A and the rear vehicle body portion 2B.
1, the inner tube member 32 is connected to the inner side. An electric motor (electric motor) 33 is provided in the outer cylinder member 31, and the electric motor 33 has an inner end portion supported by the ring member 26 and an outer end portion connected to the inner surface of the outer cylinder member 31. It is supported by the provided ring body 34. Further, the electric motor 33 includes
The emergency steering pump 35 is mounted in a state of being located in the inner cylinder member 32.

【0014】前記外筒部材31の外端には固定筒体36
が延長する状態で配置され、この固定筒体36は、その
内端に一体化されたリング板状の取付け板体(隔壁部)
37を介して固定筒体36側に連結されている。そして
固定筒体36には、軸受装置38を介して回転筒体39
が外嵌され、この回転筒体39の外端には、蓋板を兼ね
る円状板体40が連結されている。前記回転筒体39や
円状板体40は車輪ホイール27内に位置され、そして
車輪ホイール27に連結されている。
At the outer end of the outer cylindrical member 31, a fixed cylindrical body 36 is provided.
Are arranged in an extended state, and the fixed cylindrical body 36 has a ring-plate-shaped mounting plate body (partition wall portion) integrated with its inner end.
37 is connected to the fixed cylinder 36 side. The fixed cylinder 36 is provided with a rotating cylinder 39 via a bearing device 38.
A circular plate 40 also serving as a cover plate is connected to the outer end of the rotary cylinder 39. The rotating cylinder 39 and the circular plate 40 are located in the wheel 27 and are connected to the wheel 27.

【0015】前記電動機33から外側へ突出されて固定
筒体36内に位置される駆動軸41は、固定筒体36内
(車輪ホイール27内)に配置されたブレーキ装置付き
減速機42を介して回転筒体39に連動されている。す
なわち駆動軸41は、前段減速部43や後段減速部44
や円状板体40などを介して回転筒体39に連動されて
いる。そして前段減速部43の部分でかつ取付け板体3
7の近くにはブレーキ装置45が組み込まれている。
A drive shaft 41 protruding outward from the electric motor 33 and positioned in the fixed cylinder 36 is provided via a speed reducer 42 with a brake device disposed in the fixed cylinder 36 (in the wheel 27). It is linked with the rotating cylinder 39. That is, the drive shaft 41 is provided with a front-stage reduction unit 43 and a rear-stage reduction unit 44.
And the rotary cylinder 39 via a circular plate 40 and the like. The mounting plate 3 is a part of the pre-stage reduction unit 43 and
A brake device 45 is incorporated near 7.

【0016】前記車体2から電動駆動装置30の部分に
亘って、この電動駆動装置30における発熱部分(モー
タ熱やブレーキ熱など)の熱吸収を行う冷却風用経路5
0が、車体2側に供給路と排出路を有せしめて形成され
ている。すなわち内筒部材32には、送風機21に接続
しかつ冷却風の供給路51を形成する供給ダクト60が
接続され、そして内筒部材32内には分配路52が形成
されている。また電動機33には、モータ軸心に沿った
貫通路53が、モータ軸心の周りで筒状に形成され、さ
らに前記外筒部材31内で外端部分には、リング体34
と取付け板体37との間に冷却路54が形成されてい
る。
From the vehicle body 2 to the electric drive unit 30, a cooling air path 5 for absorbing heat of a heat-generating part (motor heat, brake heat, etc.) of the electric drive unit 30.
0 is formed with a supply path and a discharge path on the vehicle body 2 side. That is, a supply duct 60 connected to the blower 21 and forming a supply path 51 for the cooling air is connected to the inner cylinder member 32, and a distribution path 52 is formed in the inner cylinder member 32. In the electric motor 33, a through-passage 53 along the motor axis is formed in a cylindrical shape around the motor axis.
A cooling path 54 is formed between the cooling plate 54 and the mounting plate 37.

【0017】そして外筒部材31内で電動機33の外側
には、外筒部材31を利用したダクト体61により戻り
路55が形成され、この戻り路55の始端はリング体3
4に形成された外側連通路56を介して冷却路54に連
通され、また戻り路55の終端は、リング部材26に形
成された内側連通路57を介して、排出ダクト62によ
り形成された排出路58に連通されている。その際に排
出ダクト62は、前車体部2A内や後車体部2B内に配
設され、以て排出口は車体2内の適所に開放されてい
る。
A return path 55 is formed outside the electric motor 33 in the outer cylinder member 31 by a duct body 61 using the outer cylinder member 31, and the start end of the return path 55 is the ring body 3.
4 is connected to the cooling passage 54 via an outer communication passage 56 formed at an end thereof, and the terminal of the return passage 55 is discharged through an inner communication passage 57 formed at the ring member 26 by a discharge duct 62 formed by a discharge duct 62. It is communicated with the road 58. At this time, the discharge duct 62 is disposed in the front vehicle body portion 2A and the rear vehicle body portion 2B, so that the discharge port is opened at an appropriate position in the vehicle body 2.

【0018】上記の各路51〜58により冷却風用経路
50が形成され、この冷却風用経路50は、車体2内か
ら電動機33内を通り、電動機33とブレーキ装置付き
減速機42との間に設けられた取付け板体(隔壁部)3
7と電動機外面との間を通り、電動機33の外側を通っ
たのち、車体2内へ戻るように形成されることになる。
A cooling air path 50 is formed by the above-described respective paths 51 to 58. The cooling air path 50 passes from inside the vehicle body 2 to inside the electric motor 33, and is provided between the electric motor 33 and the speed reducer 42 with a brake device. Mounting plate (partition part) 3 provided on
After passing between the motor 7 and the outer surface of the electric motor, passing outside the electric motor 33, it is formed so as to return into the vehicle body 2.

【0019】以下に、上記した実施の形態における作用
を説明する。エンジン23の駆動により発電機22を運
転させることで発電し得、その電力を電動駆動装置30
の電動機33に供給して、この電動機33を駆動し得
る。そして運転部7におけるレバー操作などにより電動
機33への電流を制御し、電動機33の回転を制御(正
回転、逆回転、停止)することで、駆動軸41の回転
を、前段減速部43や後段減速部44や円状板体40な
どを介して回転筒体39に伝達し、これにより車輪ホイ
ール27を介して車輪3,4を正または逆に強制駆動し
得、以て建設車両1を前または後に走行し得る。そして
ブレーキ装置45を作用させることで、建設車両1を停
止し得る。
The operation of the above embodiment will be described below. The electric power can be generated by driving the generator 22 by driving the engine 23,
To the electric motor 33 to drive the electric motor 33. By controlling the current to the electric motor 33 by operating the lever in the driving unit 7 and controlling the rotation of the electric motor 33 (forward rotation, reverse rotation, stop), the rotation of the drive shaft 41 is controlled by the front deceleration unit 43 and the rear deceleration unit. The power is transmitted to the rotating cylinder 39 via the speed reduction unit 44 and the circular plate body 40 and the like, whereby the wheels 3 and 4 can be forcibly driven in the forward or reverse direction via the wheel wheels 27, so that the construction vehicle 1 is moved forward. Or you can run later. By operating the brake device 45, the construction vehicle 1 can be stopped.

【0020】前記エンジン23の駆動により、油圧ポン
プ20や送風機21も作動させており、油圧ポンプ20
の作動により、ブーム8などを介してバケット装置13
を作動し得る。
By driving the engine 23, the hydraulic pump 20 and the blower 21 are also operated.
Of the bucket device 13 via the boom 8 or the like
Can be activated.

【0021】前記送風機21の作動により生じた冷却風
は、供給ダクト60の供給路51を通して内筒部材32
内の分配路52に流入され、電動機33に形成された貫
通路53を通って冷却路54へ流入される。そして貫通
路53を通る間に、電動機33で発生した熱を吸収し得
る。また冷却路54へ流入された冷却風は、この冷却路
54を流れたのち、外側連通路56を通して戻り路55
に流入されるが、冷却路54を流れる際に、ブレーキ装
置45で発生したブレーキ熱により加熱されている取付
け板体37の熱を吸収し得る。そして戻り路55を流れ
る冷却風は、内側連通路57を介して排出ダクト62の
排出路58に流入され、本体2側の適所において、排出
ダクト62の終端(開放部)から排出される。
The cooling air generated by the operation of the blower 21 flows through the supply passage 51 of the supply duct 60 to the inner cylindrical member 32.
And flows into a cooling passage 54 through a through passage 53 formed in the electric motor 33. Then, the heat generated by the electric motor 33 can be absorbed while passing through the through passage 53. The cooling air flowing into the cooling passage 54 flows through the cooling passage 54, and then returns through the outer communication passage 56 to the return passage 55.
When flowing through the cooling passage 54, the heat of the mounting plate 37 heated by the brake heat generated by the brake device 45 can be absorbed. Then, the cooling air flowing through the return path 55 flows into the discharge path 58 of the discharge duct 62 through the inner communication path 57, and is discharged from an end (opening portion) of the discharge duct 62 at an appropriate place on the main body 2 side.

【0022】このように、送風機21の作動により生じ
た多量の冷却風を冷却風用経路50に流すことにより、
電動駆動装置30における発熱部分(モータ熱やブレー
キ熱など)の熱吸収を充分に行え、以て電動駆動装置3
0を好適に作動し得る。また冷却風用経路50は、車体
2側の一箇所で好適な位置に排出路(風出口)58を有
せしめて形成されることから、この排出路58側から雨
水、塵埃が侵入することが殆どなく、以て電動駆動装置
30を雨水や塵埃から保護し得る。
As described above, by flowing a large amount of cooling air generated by the operation of the blower 21 through the cooling air path 50,
The heat can be sufficiently absorbed by the heat-generating portions (motor heat, brake heat, etc.) of the electric drive device 30, so that the electric drive device 3
0 may work well. Further, since the cooling air path 50 is formed with a discharge path (air outlet) 58 at a suitable position at one position on the vehicle body 2 side, rainwater and dust may enter from the discharge path 58 side. Almost no, so that the electric drive device 30 can be protected from rainwater and dust.

【0023】上記した実施の形態では、一対の前車輪3
と一対の後車輪4との全てに電動駆動装置30を配設し
た形式が示されているが、これは一対の前車輪3のみに
電動駆動装置30が配設された形式、一対の後車輪4の
みに電動駆動装置30が配設された形式などであっても
よい。
In the above embodiment, the pair of front wheels 3
The electric drive device 30 is disposed on all of the pair of rear wheels 4, and the electric drive device 30 is disposed only on the pair of front wheels 3. For example, a type in which the electric drive device 30 is provided only in the fourth device 4 may be used.

【0024】上記した実施の形態では、冷却風用経路5
0として、冷却風が車体2内から電動機33内を通り、
電動機33とブレーキ装置付き減速機42との間に設け
られた取付け板体37と電動機外面との間を通り、電動
機33の外側を通ったのち、車体2内へ戻るように形成
されているが、これとは逆に冷却風が流れる冷却風用経
路50の形式などであってもよい。
In the above embodiment, the cooling air path 5
As 0, the cooling wind passes from inside the vehicle body 2 to inside the electric motor 33,
It is formed so as to pass between the mounting plate 37 provided between the electric motor 33 and the speed reducer with brake device 42 and the outer surface of the electric motor, pass outside the electric motor 33, and then return to the inside of the vehicle body 2. Alternatively, the cooling air path 50 through which the cooling air flows may be used.

【0025】上記した実施の形態では、車体2として、
前車体部2Aと後車体部2Bとからなる分割形式が示さ
れているが、これは一体形式の車体であってもよい。
In the above embodiment, the vehicle body 2 is
Although a divided form composed of a front body part 2A and a rear body part 2B is shown, this may be an integrated body.

【0026】[0026]

【発明の効果】上記した本発明の請求項1によると、冷
却風を、車体側の供給路を介して冷却風用経路に流入さ
せたのち、車体側の排出路から排出させることで、電動
駆動装置における発熱部分(モータ熱やブレーキ熱な
ど)の熱吸収を充分に行うことができ、以て電動駆動装
置を好適に作動させることができる。そして冷却風用経
路は、車体側の一箇所で好適な位置に排出路(風出口)
を有せしめて形成されることから、この排出路側から雨
水、塵埃が侵入することが殆どなく、以て電動駆動装置
を雨水や塵埃から保護できる。
According to the first aspect of the present invention, the cooling air flows into the cooling air path through the supply path on the vehicle body side, and then is discharged from the discharge path on the vehicle body side. Heat can be sufficiently absorbed by the heat-generating portion (motor heat, brake heat, etc.) of the drive device, and the electric drive device can be suitably operated. The cooling air path is located at a suitable location at one location on the vehicle body side, and the exhaust path (air outlet)
, Rainwater and dust hardly enter from the discharge path side, and the electric drive device can be protected from rainwater and dust.

【0027】また上記した本発明の請求項2によると、
車体側の供給路から冷却風を電動機内へ流すことで、電
動機で発生した熱を吸収でき、次いで冷却風を、隔壁部
と電動機外面との間を流すことで、ブーキ装置で発生し
たブレーキ熱により加熱されている隔壁部の熱を吸収で
きる。
According to the second aspect of the present invention,
By flowing cooling air into the motor from the supply passage on the vehicle body side, the heat generated by the motor can be absorbed. Then, by flowing cooling air between the partition wall and the outer surface of the motor, the brake heat generated by the bouquet device Can absorb the heat of the partition wall heated by the heat treatment.

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

【図1】本発明の実施の形態の一例を示し、冷却装置付
き電動駆動式車両における電動駆動装置冷却装置部分の
縦断正面図である。
FIG. 1 shows an example of an embodiment of the present invention, and is a longitudinal sectional front view of an electric driving device cooling device portion in an electric driving vehicle with a cooling device.

【図2】同冷却装置付き電動駆動式車両の側面図であ
る。
FIG. 2 is a side view of the electrically driven vehicle with the cooling device.

【図3】同冷却装置付き電動駆動式車両の平面図であ
る。
FIG. 3 is a plan view of the electrically driven vehicle with the cooling device.

【図4】同冷却装置付き電動駆動式車両における電動駆
動装置冷却装置部分の縦断側面図である。
FIG. 4 is a vertical sectional side view of an electric drive device cooling device in the electric drive type vehicle with the cooling device.

【符号の説明】[Explanation of symbols]

1 建設車両(電動駆動式車両) 2 車体 2A 前車体部 2B 後車体部 3 前車輪 4 後車輪 7 運転部 8 ブーム 11 荷役シリンダ 13 バケット装置(作業装置) 19 バケットシリンダ 20 油圧ポンプ 21 送風機 22 発電機 23 エンジン 27 車輪ホイール 30 電動駆動装置 33 電動機(電動モータ) 36 固定筒体 37 取付け板体(隔壁部) 39 回転筒体 41 駆動軸 42 ブレーキ付き減速機 43 前段減速部 44 後段減速部 45 ブレーキ装置 50 冷却風用経路 51 供給路 52 分配路 53 貫通路 54 冷却路 55 戻り路 56 外側連通路 57 内側連通路 58 排出路 DESCRIPTION OF SYMBOLS 1 Construction vehicle (electrically driven vehicle) 2 Body 2A Front body part 2B Rear body part 3 Front wheel 4 Rear wheel 7 Operating part 8 Boom 11 Loading cylinder 13 Bucket device (working equipment) 19 Bucket cylinder 20 Hydraulic pump 21 Blower 22 Power generation Machine 23 Engine 27 Wheel wheel 30 Electric drive device 33 Electric motor (Electric motor) 36 Fixed cylinder 37 Mounting plate (partition wall) 39 Rotating cylinder 41 Drive shaft 42 Reducer with brake 43 Front reduction section 44 Rear reduction section 45 Brake Apparatus 50 Cooling air path 51 Supply path 52 Distribution path 53 Through path 54 Cooling path 55 Return path 56 Outer communication path 57 Inner communication path 58 Discharge path

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 FI H02K 9/04 H02K 9/04 A ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code FI H02K 9/04 H02K 9/04 A

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 車体側と車輪との間に電動駆動装置が設
けられ、この電動駆動装置は、車体側に設けられた電動
機と、この電動機の駆動軸に連動されかつ車輪ホイール
内に配設されたブレーキ装置付き減速機とを有し、前記
車体から電動駆動装置の部分に亘って、この電動駆動装
置における発熱部分の熱吸収を行う冷却風用経路が、車
体側に供給路と排出路を有せしめて形成されていること
を特徴とする冷却装置付き電動駆動式車両。
1. An electric drive device is provided between a vehicle body and wheels, and the electric drive device is provided in a wheel of a motor provided on a vehicle body side and interlocked with a drive shaft of the electric motor. A cooling wind path for absorbing heat of a heat-generating portion of the electric drive device from the vehicle body to a portion of the electric drive device. An electrically driven vehicle with a cooling device, characterized in that the vehicle is formed with a cooling device.
【請求項2】 冷却風用経路は、車体内から電動機内を
通り、電動機とブレーキ装置付き減速機との間に設けら
れた隔壁部と電動機外面との間を通り、電動機の外側を
通ったのち、車体内へ戻るように形成されていることを
特徴とする請求項1記載の冷却装置付き電動駆動式車
両。
2. The cooling air path passes from the inside of the vehicle to the inside of the electric motor, passes between a partition provided between the electric motor and the speed reducer with a brake device, and the outer surface of the electric motor, and passes outside the electric motor. The electrically driven vehicle with a cooling device according to claim 1, wherein the vehicle is formed so as to return to the inside of the vehicle body.
JP9320208A 1997-11-21 1997-11-21 Motor-driven vehicle with cooling device Pending JPH11155256A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9320208A JPH11155256A (en) 1997-11-21 1997-11-21 Motor-driven vehicle with cooling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9320208A JPH11155256A (en) 1997-11-21 1997-11-21 Motor-driven vehicle with cooling device

Publications (1)

Publication Number Publication Date
JPH11155256A true JPH11155256A (en) 1999-06-08

Family

ID=18118929

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9320208A Pending JPH11155256A (en) 1997-11-21 1997-11-21 Motor-driven vehicle with cooling device

Country Status (1)

Country Link
JP (1) JPH11155256A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006290038A (en) * 2005-04-06 2006-10-26 Hitachi Constr Mach Co Ltd Travelling device
WO2007015554A1 (en) 2005-08-01 2007-02-08 Hitachi Construction Machinery Co., Ltd. Drum rotation device for construction machine
CN105024481A (en) * 2014-04-30 2015-11-04 大洋电机新动力科技有限公司 Electric automobile driving motor and speed changer integrated system
CN108390509A (en) * 2018-02-06 2018-08-10 深圳市奈士迪技术研发有限公司 A kind of New energy automobile motor convenient for heat dissipation with moisture-proof function

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006290038A (en) * 2005-04-06 2006-10-26 Hitachi Constr Mach Co Ltd Travelling device
JP4610399B2 (en) * 2005-04-06 2011-01-12 日立建機株式会社 Traveling device
WO2007015554A1 (en) 2005-08-01 2007-02-08 Hitachi Construction Machinery Co., Ltd. Drum rotation device for construction machine
CN105024481A (en) * 2014-04-30 2015-11-04 大洋电机新动力科技有限公司 Electric automobile driving motor and speed changer integrated system
WO2015165130A1 (en) * 2014-04-30 2015-11-05 大洋电机新动力科技有限公司 Integrated system of drive motor and transmission for electric vehicle
CN105024481B (en) * 2014-04-30 2017-07-28 大洋电机新动力科技有限公司 A kind of motor of electric automobile and the integrated system of speed changer
CN108390509A (en) * 2018-02-06 2018-08-10 深圳市奈士迪技术研发有限公司 A kind of New energy automobile motor convenient for heat dissipation with moisture-proof function
CN108390509B (en) * 2018-02-06 2019-11-12 安徽省电机产品及零部件质量监督检验中心 A kind of New energy automobile motor convenient for heat dissipation with moisture-proof function

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