126-6708 (1) 九、發明說明 【發明所屬之技術領域】 本發明是關於電動車輛用蓄電池固持裝置，特別是關 於能確保較大的蓄電池容量的電動車輛用蓄電池固持裝置 【先前技術】 | 現在習知的以電動機的動力來驅動的電動車輛、或以 電動機與引擎的混合動力所驅動的油電混合動力車輛，在 這種電動車輛必須搭載大容量的蓄電池，而課題會是如何 確保其設置空間。特別是，在沒有多餘的收容空間的機車 ，很難找出蓄電池的設置空間。 例如，在日本專利第3 069 8 08號說明書，是揭示有一 種電動機車，是沿著從用來支承轉向軸的頭管朝向斜後下 方延伸的下框架，來配置蓄電池。在這種機車中，在腿部 φ護罩與乘客座墊之間是設置有安全帽等的置物箱，蓄電池 是被收容在以腿部護罩與置物箱的外殼所圍繞的空間。 【專利文獻1】 日本專利第3 0 6 9 8 0 8號公報 【發明內容】 〔發明欲解決的課題〕 在專利文獻1所記載的蓄電池的配置方式’如果更加 大蓄電池容量的話，則腿部護罩與置物箱的外殼之間的空 -4- (2) 1266708 間會變窄，搭乘者的腳周圍不容易有充裕的空間。因此， 需要一種蓄電池固持裝置，要確保腳周圍有充分的空間， 而不會影響到搭乘者的乘坐心情，且能收容大容量的蓄電 池。 本發明的目的是要提供一種蓄電池固持裝置，能夠收 容適合電動車輛的大容量的蓄電池。 | 〔用以解決課題的手段〕 用來達成上述目的的本發明的第1發明，在配置於車 體的前部的車體的前外殼、以及與該前外殼相對向而配置 在車體後方側的後外殼之間，具備有：具有形成爲可收容 蓄電池的蓄電池收容部的蓄電池殻體，上述蓄電池收容部 ，是位於較上述前叉更接近車寬方向外側處，是分別設置 在車體的左右處，且在上述前外殼，在與上述蓄電池收容 部相對向的位置是設置有空氣入口，在上述後外殼，設置 φ有空氣排出口。 第2發明，上述蓄電池殼體，是由：沿著上述頭管所 配置的上收容部分、以及沿著上述下框架所配置的下收容 部分所構成。 第3發明，上述蓄電池殼體的上收容部分，是配置在 :較上述下收容部分更接近車體內側。 第4發明，在上述蓄電池收容部與下框架之間，形成 有置物空間。 (3) 1266708 〔發明效果〕 藉由上述第1發明，則可確保搭乘者腳周圍的空間， 且可謀求蓄電池的大容量化，在車輛行駛時，讓行駛氣流 從空氣入口進入，以行駛氣流來冷卻蓄電池收容部。 配置在較前叉更外側處的蓄電池收容部，是強力地承 受著行駛氣流，所以蓄電池的冷卻效果很好。由於前叉與 蓄電池收容部在車體的前後方向並沒有互相干涉，所以可 φ 將蓄電池收容部配置在較前叉更接近前方處。於是，能夠 充分地加大搭乘者的腳周圍的空間。 藉由第2發明，是將蓄電池殼體的上收容部分與下收 容部分沿著頭管及下框架進行配置，所以從車輛的側面觀 察，能夠縮小其從車體框架伸出的量。於是，例如，像機 車這樣空間有所限制的車輛，仍能將大容量的蓄電池搭載 於車輛。 藉由第3發明，藉由將配置於頭管附近的蓄電池殻體 φ的上收容部分，配置在接近車體內側處，則可以減少車把 周圍朝向車寬方向伸出的部分。特別是，對於小型的速克 達型車輛，能夠有效率地利用其空間。 藉由第4發明，是將蓄電池收容部配置在較前叉更外 側處，所以可以將蓄電池收容部與下框架之間加寬而利用 作爲置物部。 【實施方式】 以下是參照圖面來說明本發明的一種實施方式。第1 -6- (4) 1266708 圖是具備有本發明的一種實施方式的蓄電池固持裝置的速 克達型車輛的側面圖。該速克達型車輛，是以內燃機引擎 與電動機的混合動力所驅動的油電混合動力型的速克達型 車輛。 第1圖所示的速克達型車輛1的車體框架，是具備有： 可自由轉動地支承著轉向車把（以下僅稱爲「車把」）2的軸 部2 a的頭管3、從頭管3朝向車體的斜後下方延伸的下框架 | 4、從該下框架4的下端朝向車體左右分歧，然後朝向後方 大致水平地延伸的中間框架5、以及被連結在橫跨於該中 間框架5的左右部分的橫支架5a，從該橫支架5a朝向車體 的斜後上方延伸的車體的左右的一對後框架6。 在頭管3所軸支承著的車把2的軸部2a的下端，是結合 著：以底架橋部37連結其上端的前叉7。在前叉7的下端軸 支承著前輪8。 包含有：引擎9、電動機10、及皮帶式無段變速裝置 • 11的動力單元12，是藉由連桿機構13，可自由上下擺動地 相對於後框架6被支承著。在動力單元1 2，是經由減速裝 置14連結著後輪15。在動力單元12的後部與後框架6的後 部之間，是設置有後避震器16，該後避震器16的上下端是 分別結合在該動力單元12的後部與後框架6的後部。 在引擎9的曲軸1 7是結合著驅動皮帶輪1 8，在驅動皮 帶輪18與後輪側的從動皮帶輪19之間，是繞掛著v形皮帶 20。用來支承從動皮帶輪19的從動軸21，是經由減速裝置 1 4內的齒輪裝置，而連結到後輪1 5。 (5) 1266708 在曲軸1 7，是設置有鄰接於驅動皮帶輪1 8的起步離合 器，並且在起步離合器的相反側（車體右側）是設置有ACG 啓動電動機。起步離合器及ACG啓動電動機並沒有圖示。 從動皮帶輪1 9與從動軸2 1，是以僅可將從動皮帶輪1 9 的單向（用來使車輛前進的旋轉方向）旋轉傳達到從動軸2 1 的方式，而經由單向離合器而被結合在一起。電動機1 〇是 接近配置於從動軸2 1，電動機1 0的內轉子是與從動軸2 1形 _ 成爲一體。 在動力單元12，引擎9的動力，是從曲軸17，經由： 起步離合器、無段變速裝置11、單向離合器、從動軸21、 及減速裝置1 4，而傳達到後輪1 5。另一方面，當引擎9停 止時，可以使電動機1 0作動而能單獨驅動後輪1 5，在引擎 9運轉時，也可以使電動機10作動，而能輔助引擎9的輸出 〇 在後框架6的上部，是設置有搭乘者座墊2 2。在搭乘 鲁者座墊22的下方，能夠收容安全帽等。在後框架6，是設 置有ECU24，該ECU24是用來控制：電動機10的作爲驅動 電路的轉換裝置23或引擎9及ACG啓動電動機。 在中間框架5，是配置有：作爲引擎9或燈等的控制用 電源而用來供給12伏特的電壓的蓄電池25。在接合於頭管 3而位於車體的寬度方向中央部的下框架4的左右處，是配 置有：作爲電動機10的驅動用電源的蓄電池組裝體26。蓄 電池組裝體2 6，是由：從側面觀察大致沿著頭管3配置的 上部蓄電池組2 7、以及沿著下框架4所配置的下部蓄電池 (6) 1266708 組2 8所構成。也就是說，蓄電池組裝體2 6，其全體是沿著 包含腿部護罩29的前擾流罩（前外殼）5 〇被收容著。 接下來更進一步詳細敘述蓄電池組裝體2 6的配置方式 。第2圖，是顯示速克達型車輛丨的車體前部的主要部分的 從左後方觀察的立體圖’第3圖是側視圖，第4圖是從車體 前方觀察的正視圖，第5圖是後視圖，第6圖是在第5圖的A 一 A位置的剖面圖。 | 在第2圖〜第6圖，是以涵蓋在頭管3所接合的下框架4 的方式’配置有鞍型的蓄電池殻體30。蓄電池殻體30，是 具有：橫跨下框架4的鞍部3 1、以及從鞍部3 1的裙部朝向 車寬方向左右延伸的蓄電池收容部32。蓄電池收容部32, 是形成有嵌合凹部，以用來排列圓柱狀的複數的蓄電池45 ，而分別收容上部蓄電池組2 7及下部蓄電池組2 8。蓄電池 4 5，例如是鎳氫電池（N i — Μ Η電池）。 蓄電池殼體3 0，爲了要能將上部蓄電池組2 7及下部蓄 參電池組2 8分別沿著頭管3及下框架4進行配置，而使上收容 部3 2a與下收容部32b的交界部彎曲。也就是說，上收容部 3 2 a是配置成大致垂直的，下收容部32b是配置成從上收容 部3 2 a的下端朝向車體斜後下方延伸。 在鞍部31的頂部33，是安裝著導體單元34，該導體單 元3 4是收容著：用來進行蓄電池組裝體26與電動機10的連 接的繼電窃卓兀或保險絲（後述）。 蓄電池殼體30的蓄電池收容部32的底部，如第4圖及 第6圖所示，爲了適合圓柱狀蓄電池45及用來固持該圓柱 -9 - (7) 1266708 狀蓄電池45的兩端的帶狀固持部47的外型，而形成爲具有 半圓狀的波浪形狀連續的部分。 在蓄電池殼體30，爲了不讓上部蓄電池組27及下部蓄 電池組28從蓄電池收容部32脫離，而覆蓋有蓄電池外殼35 、3 6。蓄電池外殼3 5、3 6的形狀，也與蓄電池收容部3 2的 底部同樣地，爲了適合蓄電池4 5及帶狀固持部4 7的外型， 而形成爲具有半圓狀的波浪形狀連續的部分。蓄電池外殻 | 3 5、3 6是個別構造也可以，是一體成形的構造也可以。 蓄電池外殼3 5、3 6，相對於蓄電池殻體3 〇，例如是以 小螺釘加以固定。在第6圖是顯示以小螺釘固定的例子。 在蓄電池殻體30及蓄電池外殼36，是分別設置有安裝轂部 81、82。是藉由將鎖裝螺釘83貫穿在安裝轂部82所設置的 孔部，而將其螺合在安裝轂部8 1的螺紋孔，則蓄電池外殼 36會被固定在蓄電池殼體30。 從第4圖及第5圖可以看出，蓄電池殼體30的蓄電池收 φ容部32的下收容部32b，在車寬方向是較上收容部32 a更寬 ，且是位於相較於用來支承車把2的軸部2a的頭管3距離很 遠的位置。車體左右的下收容部32b的間隔，是設定成大 於前叉7的寬度。 藉由這種配置方式，即使蓄電池殻體30接近車體前方 ，蓄電池殼體30的彎曲部也不會與底架橋部37造成干涉。 於是，蓄電池殼體30能夠沿著腿部護罩29而配置在接近車 體前方處。 在下框架4的兩側，是左右對稱地設置有蓄電池殼體 -10- (8) 1266708 3 〇的兩處的凹部3 8、3 8 (參照第4圖）。該凹部3 8、3 8，是對 應於前叉7的頂部也就是對應於底架橋部3 7的位置，當將 蓄電池殼體3 0配置接近車體前方時，互相的間隔是設定成 讓底架橋部37不會與蓄電池殼體30抵接。 藉由將用來收容蓄電池組裝體26的蓄電池殼體30接近 車體前方配置，則可將從車體後方側覆蓋蓄電池殻體3 0的 前擾流罩50的內部外殼（後外殻）42與搭乘者座墊22的間隔 | 予以加大，則可以增加搭乘者的腳周圍的空間3 9，而能使 乘坐感提昇（參照第3圖）。 第7圖，是第1圖的B—B位置的剖面圖。在第7圖，導 體單元34，是以固定螺栓40、40而被安裝在蓄電池殻體30 的鞍部31的頂部33。在導體單元34覆蓋著中央外殻41。在 蓄電池殻體30的前方配置有腿部護罩29。腿部護罩29，是 作成用來覆蓋車體前方的前擾流罩（前外殼）50的一部分。 該腿部護罩29，是具備有··位於蓄電池收容部32的正前方 φ的空氣入口 43、43〇 另一方面，在從車體後方來覆蓋蓄電池組裝體26或蓄 電池殻體30的內部外殻（後外殼）42，是朝向車寬方向兩端 設置有空氣排出口 44、44。而在蓄電池殻體30的蓄電池收 容部3 2的前部設置有葉片46，以增大蓄電池收容部3 2的外 側表面積。藉此，讓速克達車輛1在行駛時所受到的行駛 氣流W從空氣入口 43流入，通過並接觸葉片46，然後從空 氣排出口 4 4排出到外部。蓄電池殻體3 0如上述，其形狀是 沿著蓄電池組裝體26的形狀。也就是說蓄電池殼體30與蓄 -11 - (9) 1266708 電池組裝體26是緊貼著。於是，藉由通過於腿部護罩29與 內部外殼3 9的行駛氣流W，可將蓄電池4 5所產生的熱量經 由蓄電池殼體30而排出，而可獲得冷卻蓄電池45的效果。 第8圖，是將蓄電池外殼35、36及中央外殻41卸下的 狀態的車體前部的後視圖。上部蓄電池組27及下部蓄電池 組28，是由以帶狀固持部47所捆束的複數的蓄電池45所構 成。 | 在車體的左右處所分別設置的上部蓄電池組27、下部 蓄電池組28、保險絲49、及繼電器單元5 1，是串聯連接。 從繼電器單元5 1所拉出的正極側電線52、與從左側的下部 蓄電池組2 8所拉出的負極側電線5 3，是集合在連接用耦合 器54 〇 藉由本實施方式，是將蓄電池配置在：從車把2的軸 部2a的周圍涵蓋到下框架4的周圍的寬闊的區域，所以能 夠將充分的電力供給到電動機車的驅動用電動機。並且， φ由於是以沿著頭管3與下框架4的彎曲形狀，且配置在腿部 護罩29的左右端附近，且避免其與前叉7造成干涉的方式 ，來配置蓄電池，所以能將蓄電池配置成非常接近車體前 方。結果，在搭乘者的腳的周圍就會產生充裕的空間。 第9圖，是形成有可利用作爲置物部的例子的顯示圖 ，與第7圖相同的圖號是顯示相同或同等的部分。在第7圖 ，內部外殼42其形狀是構成爲大致沿著蓄電池殻體3 0的鞍 型形狀。可是，在該變形例中，是將內部外殼42的形狀改 變，打開內部外殻42與蓄電池殻體3 〇之間而形成空間S， -12 - (10) 1266708 而能將該空間S利用作爲置物部。而能藉由將蓄電池收容 部3 2配置接近車體前方，所以佈置上的自由度也可提升。 在上述實施方式，本發明是適用於速克達型機車。可 是，本發明並不限於此，只要是具有：頭管及從頭管朝向 車體斜後下方延伸的框架構件（相當於下框架的構件）的車 輛’不管是三輪機車或汽車都可適用。而並不限於油電混 合動力型車輛，僅以電動機來驅動車輪的電動車輛也同樣 可以適用。 【圖式簡單說明】 第1圖是具備有本發明的一種實施方式的蓄電池保持 裝置的速克達型車輛的側面圖。 第2圖是從左後方顯示速克達型車輛的車體前部的主 要部分的立體圖。 第3圖是速克達型車輛的車體前部的側視圖。 第4圖是從速克達型車輛的車體前方觀察的正視圖。 第5圖是速克達型車輛的後視圖。 第6圖是第5圖的A — A線剖面圖。 第7圖是第1圖的B— B線剖面圖。 第8圖是卸下了蓄電池外殼與中央外殻的狀態的車體 前部的後視圖。 第9圖是變形例的車體前部的剖面圖。 【主要元件符號說明] -13- (11) 1266708 1 :速克達型車輛 2 :頭管 4 :下框架 5 :中間框架 7 :前叉 8 :前輪 9 :引擎126-6708 (1) EMBODIMENT OF THE INVENTION [Technical Field] The present invention relates to a battery holding device for an electric vehicle, and more particularly to a battery holding device for an electric vehicle capable of securing a large battery capacity [Prior Art] | Nowadays, an electric vehicle driven by the power of an electric motor or a hybrid electric vehicle driven by a hybrid of an electric motor and an engine requires a large-capacity battery to be mounted on such an electric vehicle, and the problem is how to secure it. Set the space. In particular, in a locomotive that does not have an extra accommodating space, it is difficult to find a storage space for the battery. For example, in the specification of Japanese Patent No. 3 069 8 08, there is disclosed an electric motor vehicle in which a battery is disposed along a lower frame extending from a head pipe for supporting a steering shaft toward a lower rear side. In this locomotive, between the leg φ shroud and the passenger seat cushion is a storage box provided with a helmet or the like, and the battery is housed in a space surrounded by the outer casing of the leg shield and the storage box. [Patent Document 1] Japanese Patent Laid-Open No. 309-108 (Convention) [Problems to be Solved by the Invention] In the battery arrangement method described in Patent Document 1, if the battery capacity is larger, the leg portion is provided. The space between the shield and the outer casing of the compartment is narrowed between -4-(2) 1266708, and there is not much room around the passenger's foot. Therefore, there is a need for a battery holding device that ensures sufficient space around the foot without affecting the rider's riding mood and can accommodate a large-capacity storage battery. SUMMARY OF THE INVENTION An object of the present invention is to provide a battery holding device capable of accommodating a large-capacity battery suitable for an electric vehicle. [Means for Solving the Problem] The first invention of the present invention for achieving the above object is disposed on the front outer casing of the vehicle body disposed at the front portion of the vehicle body, and disposed behind the vehicle body so as to face the front outer casing Between the rear outer casings, a battery case having a battery accommodating portion that is formed to be storable in a battery, and the battery accommodating portion is located closer to the outer side in the vehicle width direction than the front fork, and is respectively disposed on the vehicle body In the left and right sides, in the front outer casing, an air inlet is provided at a position facing the battery storage portion, and an air discharge port is provided in the rear casing. According to a second aspect of the invention, the battery case comprises: an upper housing portion disposed along the head pipe; and a lower housing portion disposed along the lower frame. According to a third aspect of the invention, the upper housing portion of the battery case is disposed closer to the inner side of the vehicle body than the lower housing portion. According to a fourth aspect of the invention, the storage space is formed between the battery storage portion and the lower frame. (3) 1266708 [Effect of the Invention] According to the first aspect of the invention, it is possible to secure a space around the passenger's foot and to increase the capacity of the battery, and to allow the traveling airflow to enter from the air inlet during traveling of the vehicle to travel the airflow. To cool the battery compartment. The battery accommodating portion disposed at the outer side of the front fork is strongly subjected to the traveling airflow, so the cooling effect of the battery is good. Since the front fork and the battery accommodating portion do not interfere with each other in the front-rear direction of the vehicle body, the battery accommodating portion can be disposed closer to the front than the front fork. Therefore, the space around the passenger's foot can be sufficiently increased. According to the second aspect of the invention, since the upper housing portion and the lower receiving portion of the battery case are disposed along the head pipe and the lower frame, the amount of the battery housing can be reduced from the vehicle body frame as viewed from the side of the vehicle. Thus, for example, a vehicle having a limited space such as a locomotive can still mount a large-capacity battery to the vehicle. According to the third aspect of the invention, the upper housing portion of the battery case φ disposed in the vicinity of the head pipe is disposed near the inner side of the vehicle body, so that the portion of the periphery of the handlebar that protrudes in the vehicle width direction can be reduced. In particular, for small-sized scooters, the space can be utilized efficiently. According to the fourth aspect of the invention, since the battery accommodating portion is disposed further outward than the front fork, the battery accommodating portion and the lower frame can be widened to be used as the storage portion. [Embodiment] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1 to 6-(4) 1266708 is a side view of a scooter type vehicle equipped with a battery holding device according to an embodiment of the present invention. The Scooter type vehicle is a hybrid electric-type vehicle that is driven by a hybrid of an internal combustion engine and an electric motor. The body frame of the scooter type vehicle 1 shown in Fig. 1 is provided with a head pipe 3 that rotatably supports a shaft portion 2a of a steering handlebar (hereinafter simply referred to as "handlebar") 2 a lower frame extending from the head pipe 3 toward the obliquely rear lower side of the vehicle body| 4; an intermediate frame 5 which is branched from the lower end of the lower frame 4 toward the left and right sides of the vehicle body, and then extends substantially horizontally toward the rear, and is connected across the intermediate frame 5 The horizontal bracket 5a of the right and left portions of the intermediate frame 5 is a pair of right and left rear frames 6 of the vehicle body that extend obliquely upward and rearward from the lateral bracket 5a toward the vehicle body. The lower end of the shaft portion 2a of the handlebar 2 that is axially supported by the head pipe 3 is coupled to a front fork 7 that is coupled to the upper end thereof by a bridge portion 37. The front wheel 8 is supported by the lower end shaft of the front fork 7. The power unit 12 including the engine 9, the electric motor 10, and the belt type stepless speed change device 11 is supported by the link mechanism 13 so as to be swingable up and down with respect to the rear frame 6. In the power unit 12, the rear wheel 15 is coupled via a speed reducing device 14. Between the rear portion of the power unit 12 and the rear portion of the rear frame 6, a rear shock absorber 16 is provided, and the upper and lower ends of the rear shock absorber 16 are coupled to the rear portion of the power unit 12 and the rear portion of the rear frame 6, respectively. The crankshaft 17 of the engine 9 is coupled to the drive pulley 18, and between the drive pulley 18 and the driven pulley 19 on the rear wheel side, the v-belt 20 is wound. The driven shaft 21 for supporting the driven pulley 19 is coupled to the rear wheel 15 via a gear unit in the reduction gear unit 14. (5) 1266708 The crankshaft 17 is provided with a starting clutch adjacent to the drive pulley 18, and an ACG starter motor is provided on the opposite side of the starting clutch (on the right side of the vehicle body). The starting clutch and ACG starter motor are not shown. The driven pulley 19 and the driven shaft 21 are conveyed to the driven shaft 2 1 only by the one-way (rotation direction for advancing the vehicle) of the driven pulley 1 9 , and via the one-way The clutches are combined. The motor 1 〇 is disposed close to the driven shaft 2 1, and the inner rotor of the motor 10 is integrated with the driven shaft 2 1 . In the power unit 12, the power of the engine 9 is transmitted from the crankshaft 17 to the rear wheel 15 via the starting clutch, the stepless transmission 11, the one-way clutch, the driven shaft 21, and the reduction gear unit 14. On the other hand, when the engine 9 is stopped, the motor 10 can be actuated to separately drive the rear wheel 15. When the engine 9 is running, the motor 10 can be actuated, and the output of the engine 9 can be assisted in the rear frame 6. The upper part is provided with a passenger seat cushion 2 2 . A helmet or the like can be housed under the seat cushion 22. In the rear frame 6, an ECU 24 for controlling the conversion device 23 as the drive circuit of the motor 10 or the engine 9 and the ACG starter motor is provided. In the intermediate frame 5, a battery 25 for supplying a voltage of 12 volts as a control power source such as an engine 9 or a lamp is disposed. On the left and right sides of the lower frame 4 which is joined to the head pipe 3 and which is located at the center portion in the width direction of the vehicle body, a battery assembly 26 as a power source for driving the motor 10 is disposed. The battery assembly 26 is composed of an upper battery pack 27 disposed substantially along the head pipe 3 and a lower battery (6) 1266708 group 28 disposed along the lower frame 4. That is, the battery assembly 2 6 is housed along the front spoiler cover (front case) 5 包含 including the leg shield 29 as a whole. Next, the arrangement of the battery assembly 26 will be described in further detail. Fig. 2 is a perspective view showing the main portion of the front portion of the vehicle body of the Scooter type vehicle vehicle viewed from the left rear side. Fig. 3 is a side view, and Fig. 4 is a front view from the front of the vehicle body, and fifth. The figure is a rear view, and Fig. 6 is a cross-sectional view at the A-A position of Fig. 5. In the second to sixth figures, a saddle type battery case 30 is disposed so as to cover the lower frame 4 to which the head pipe 3 is joined. The battery case 30 has a saddle portion 31 that spans the lower frame 4, and a battery housing portion 32 that extends left and right from the skirt portion of the saddle portion 31 toward the vehicle width direction. The battery housing portion 32 is formed with a fitting recess for arranging a plurality of cylindrical batteries 45 to accommodate the upper battery pack 27 and the lower battery pack 28, respectively. The battery 4 5 is, for example, a nickel-hydrogen battery (N i - Μ Η battery). The battery case 30 is configured such that the upper battery unit 27 and the lower battery unit 28 are disposed along the head pipe 3 and the lower frame 4, respectively, so that the upper housing portion 3 2a and the lower housing portion 32b are at the boundary. The part is curved. That is, the upper housing portion 32a is disposed substantially vertically, and the lower housing portion 32b is disposed so as to extend obliquely downward from the lower end of the upper housing portion 32a toward the vehicle body. On the top portion 33 of the saddle portion 31, a conductor unit 34 is mounted, and the conductor unit 34 accommodates a relay thief or fuse (described later) for connecting the battery assembly 26 to the motor 10. The bottom of the battery accommodating portion 32 of the battery case 30, as shown in Figs. 4 and 6, is adapted to fit the cylindrical battery 45 and the strip for holding the both ends of the cylindrical -9 - (7) 1266708 battery 45. The shape of the holding portion 47 is formed to have a semicircular wavy continuous portion. The battery case 30 covers the battery cases 35 and 36 so as not to disengage the upper battery unit 27 and the lower battery unit 28 from the battery storage unit 32. Similarly to the bottom of the battery housing portion 32, the shape of the battery case 3 5, 36 is formed to have a semicircular wavy continuous portion in order to fit the shape of the battery 4 5 and the band-shaped holding portion 47. . Battery case | 3 5, 3 6 may be an individual structure, and may be an integrally formed structure. The battery casings 3 5, 3 6 are fixed relative to the battery casing 3, for example, by means of screws. In Fig. 6, an example of fixing with a small screw is shown. Mounting hubs 81, 82 are provided in the battery case 30 and the battery case 36, respectively. The battery case 36 is fixed to the battery case 30 by inserting the lock screw 83 through the hole provided in the mounting boss portion 82 and screwing it into the screw hole of the mounting boss portion 81. As can be seen from FIGS. 4 and 5, the lower housing portion 32b of the battery receiving portion 32 of the battery case 30 is wider than the upper housing portion 32a in the vehicle width direction, and is located for comparison. The head tube 3 of the shaft portion 2a of the handlebar 2 is supported at a position far away. The interval between the left and right lower housing portions 32b of the vehicle body is set to be larger than the width of the front fork 7. With this arrangement, even if the battery case 30 approaches the front of the vehicle body, the bent portion of the battery case 30 does not interfere with the chassis portion 37. Thus, the battery case 30 can be disposed along the leg shield 29 in the vicinity of the front of the vehicle body. On both sides of the lower frame 4, recessed portions 38 and 38 of the battery case -10- (8) 1266708 3 〇 are provided symmetrically in the left and right directions (see Fig. 4). The recesses 38, 38 are corresponding to the top of the front fork 7, that is, the position corresponding to the chassis bridge 37. When the battery case 30 is disposed close to the front of the vehicle body, the mutual spacing is set to the bottom. The bridge portion 37 does not abut against the battery case 30. By arranging the battery case 30 for accommodating the battery assembly 26 in the front of the vehicle body, the inner casing (rear casing) 42 of the front spoiler cover 50 of the battery casing 30 can be covered from the rear side of the vehicle body. The distance from the passenger seat cushion 22 is increased, and the space around the passenger's foot 3 is increased, and the ride feeling can be improved (see Fig. 3). Fig. 7 is a cross-sectional view taken along line B-B of Fig. 1. In Fig. 7, the conductor unit 34 is attached to the top portion 33 of the saddle portion 31 of the battery case 30 by fixing bolts 40, 40. The conductor unit 34 covers the central casing 41. A leg shield 29 is disposed in front of the battery case 30. The leg shield 29 is a part of a front spoiler (front casing) 50 that is formed to cover the front of the vehicle body. The leg shield 29 is provided with air inlets 43 and 43 located directly in front of the battery storage unit 32. On the other hand, the battery assembly 26 or the battery case 30 is covered from the rear of the vehicle body. The outer casing (rear outer casing) 42 is provided with air discharge ports 44, 44 at both ends in the vehicle width direction. On the front side of the battery housing portion 32 of the battery case 30, vanes 46 are provided to increase the outer surface area of the battery housing portion 32. Thereby, the traveling airflow W received by the Skoda vehicle 1 while traveling is inflowed from the air inlet 43, passes through the blade 46, and is discharged from the air discharge port 4 to the outside. The battery case 30 has a shape along the shape of the battery assembly 26 as described above. That is, the battery case 30 is in close contact with the battery assembly 26 of the storage device. Thus, by passing the traveling airflow W of the leg shield 29 and the inner casing 39, the heat generated by the battery 45 can be discharged through the battery casing 30, and the effect of cooling the battery 45 can be obtained. Fig. 8 is a rear elevational view showing the front portion of the vehicle body in a state where the battery casings 35, 36 and the center casing 41 are removed. The upper battery pack 27 and the lower battery pack 28 are composed of a plurality of batteries 45 bundled by a band-like holding portion 47. The upper battery pack 27, the lower battery pack 28, the fuse 49, and the relay unit 513 which are respectively disposed at the left and right sides of the vehicle body are connected in series. The positive-side electric wire 52 pulled out from the relay unit 51 and the negative-side electric wire 5 3 pulled out from the lower battery pack 28 on the left side are assembled in the coupling coupler 54. By the present embodiment, the battery is It is disposed so as to cover a wide area around the lower frame 4 from the periphery of the shaft portion 2a of the handlebar 2, so that sufficient electric power can be supplied to the driving motor of the electric motor vehicle. Further, since φ is disposed along the curved shape of the head pipe 3 and the lower frame 4, and is disposed in the vicinity of the left and right ends of the leg shield 29, and avoids interference with the front fork 7, the battery is disposed. Configure the battery so that it is very close to the front of the car. As a result, ample space is created around the rider's foot. Fig. 9 is a view showing an example in which a storage portion can be used, and the same reference numerals as in Fig. 7 show the same or equivalent portions. In Fig. 7, the inner casing 42 is shaped to have a saddle shape substantially along the battery casing 30. However, in this modification, the shape of the inner casing 42 is changed, and the space S, -12 - (10) 1266708 is formed by opening the inner casing 42 and the battery casing 3, and the space S can be utilized. Storage department. Further, since the battery accommodating portion 32 is disposed close to the front of the vehicle body, the degree of freedom in arrangement can be improved. In the above embodiment, the present invention is applicable to a Scooter type locomotive. However, the present invention is not limited thereto, and any vehicle having a frame member (a member corresponding to the lower frame) extending obliquely rearward and downward from the head pipe toward the vehicle body can be applied to a three-wheeled vehicle or an automobile. It is not limited to a hybrid electric vehicle, and an electric vehicle that uses only an electric motor to drive a wheel is also applicable. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a side view of a scooter type vehicle including a battery holding device according to an embodiment of the present invention. Fig. 2 is a perspective view showing a main portion of the front portion of the vehicle body of the Scooter type vehicle from the left rear side. Fig. 3 is a side view of the front portion of the body of the Scooter type vehicle. Fig. 4 is a front elevational view as seen from the front of the vehicle body of the Scooter type vehicle. Figure 5 is a rear view of the Scooter type vehicle. Fig. 6 is a cross-sectional view taken along line A-A of Fig. 5. Fig. 7 is a sectional view taken along line B-B of Fig. 1. Fig. 8 is a rear elevational view of the front portion of the vehicle body with the battery casing and the center casing removed. Fig. 9 is a cross-sectional view showing a front portion of a vehicle body according to a modification. [Explanation of main component symbols] -13- (11) 1266708 1 : Scooter type vehicle 2 : Head tube 4 : Lower frame 5 : Intermediate frame 7 : Front fork 8 : Front wheel 9 : Engine
1 〇 :電動機 2 6 :蓄電池組裝體 27 :上部蓄電池組 2 8 :下部蓄電池組 29 :腿部護罩 3 0 :蓄電池殼體 3 1 :鞍部1 〇 : Motor 2 6 : Battery pack 27 : Upper battery pack 2 8 : Lower battery pack 29 : Leg shield 3 0 : Battery housing 3 1 : Saddle
3 2 :蓄電池收容部 3 5、3 6 :蓄電池外殼 3 7 :底架橋部 3 9 :腳周圍的空間 42 :內部外殼（後外殼） 4 5 :蓄電池 46 :葉片 50 :前擾流罩（前外殼） -14-3 2 : Battery storage unit 3 5, 3 6 : Battery case 3 7 : Chassis bridge 3 9 : Space around the foot 42 : Inner case (rear case) 4 5 : Battery 46 : Blade 50 : Front spoiler (front Shell) -14-