201024135 ' 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種電動機車之預備電池結合構造， 特別是關於一種利用置物空間的一部分選擇性組裝結 合預備電池的電動機車之預備電池結合構造。 【先前技術】 現今，機車已成為日常生活不可或缺的一種便利交 ® 通工具。目前，大多數機車係藉由引擎或電動馬達做為 動力來源。若機車係設置引擎時，該引擎係以燃燒汽油 推動汽缸活塞取得動力，並以電池之電力做為起動點火 時之輔助動力。若機車設置電動馬達時，該電動馬達則 是以電池之電力驅動該電動馬達轉動，此種類型之機車 構造一般即稱為電動機車。 請參照第1圖所示，其揭示一種習用電動機車之電 ❿ 池結合構造，其係在一機車坐墊10下方之一車殼11處 分別凹設形成一電池空間12及一置物空間13。該電池 空間12用以插設結合一鋰電池14，且該電池空間12 之底部具有數個電性接點（未繪示）能對應電性連接於 該鋰電池14之底部的數個電性接點（未繪示）。該置物 空間13則用以放置機車騎士之隨身物品，例如手提袋 等。 然而，上述習用電動機車之電池結合構造在實際使 用上仍具有下述問題，例如··該電動機車之車殼11僅 201024135 設有單一電池空間12,以容置單一顆鋰電池14,因此 該鋰電池14能提供的電力有限，僅能在短距離内來回 行駛，但無法滿足中長程騎乘距離的需求。再者，由於 該電池空間12之尺寸固定不變，故該電池空間12無法 用以組裝結合更大尺寸規格之鋰電池14,以增加電力 供給量。另外，因為該車殼11設置該電池空間12佔用 了部分空間，以致於限制了該置物空間13之尺寸無法 被擴大。由於該置物空間13之容量過小，甚至連安全 帽都無法放置到該置物空間13内，因此常造成置物時 的不便。 故，有必要提供一種電動機車之預備電池結合構 造，以解決習知技術所存在的問題。 【發明内容】 本發明之主要目的在於提供一種電動機車之預備電 池結合構造，其係利用置物空間的一部分做為電池組裝 區，以選擇性組裝結合預備電池，不但可確保置物空間 保有較大容量，並可選擇性提供預備電力，進而提升空 間的有效利用率、增加置物空間及擴大置物便利性。 本發明之次要目的在於提供一種電動機車之預備電 池結合構造，其係依騎乘距離長短，利用置物空間之電 池組裝區及置物區選擇性組裝結合不同尺寸規格的預 備電池，以便提供足夠電力滿足中長距離的騎乘需求， 進而提高組裝結合裕度及延長電力供給時間。 201024135 本發明之另一目的在於提供一種電動機車之預備電 池結合構造，其係利用定位結合部及定位鎖付部將預備 電池穩固定位在置物空間之電池組裴區内，進而提高組 裝結合及電力供給的穩定度與可靠度。201024135 ' VI. EMBODIMENT OF THE INVENTION: TECHNICAL FIELD The present invention relates to a battery assembly structure for an electric motor vehicle, and more particularly to a battery assembly structure for an electric motor vehicle that selectively assembles a battery with a part of a storage space. . [Prior Art] Today, locomotives have become an indispensable tool for daily life. Currently, most locomotives are powered by engines or electric motors. If the locomotive is equipped with an engine, the engine will use the burning gasoline to push the cylinder piston to obtain power, and use the battery power as the auxiliary power for starting the ignition. If the locomotive is provided with an electric motor, the electric motor is driven by the electric power of the battery to rotate the electric motor. This type of locomotive structure is generally called an electric motor vehicle. Referring to Fig. 1, a battery assembly structure of a conventional electric motor vehicle is disclosed, which is recessed to form a battery space 12 and a storage space 13 at a casing 11 below a locomotive seat cushion 10. The battery space 12 is configured to be coupled to a lithium battery 14 , and the bottom of the battery space 12 has a plurality of electrical contacts (not shown) corresponding to the plurality of electrical properties electrically connected to the bottom of the lithium battery 14 . Contact (not shown). The storage space 13 is used to store the cyclist's belongings, such as a tote bag. However, the battery-coupled structure of the conventional electric motor vehicle described above still has the following problems in practical use. For example, the motor vehicle casing 11 only has a single battery space 12 for receiving a single lithium battery 14 in 201024135, so The lithium battery 14 can provide limited power and can only travel back and forth within a short distance, but cannot meet the long-distance riding distance. Moreover, since the size of the battery space 12 is fixed, the battery space 12 cannot be assembled to incorporate a lithium battery 14 of a larger size to increase the amount of power supplied. In addition, since the casing 11 is provided with the battery space 12 occupies a part of the space, the size of the storage space 13 is restricted from being enlarged. Since the capacity of the storage space 13 is too small, even the safety cap cannot be placed in the storage space 13, which often causes inconvenience in storage. Therefore, it is necessary to provide a preliminary battery assembly structure for an electric motor vehicle to solve the problems of the prior art. SUMMARY OF THE INVENTION The main object of the present invention is to provide a spare battery bonding structure for an electric motor vehicle, which utilizes a part of a storage space as a battery assembly area to selectively assemble and combine a spare battery, thereby ensuring a large capacity of the storage space. It can also provide preparatory power, which can improve the effective utilization of space, increase the storage space and expand the convenience of storage. A secondary object of the present invention is to provide a spare battery coupling structure for an electric motor vehicle, which is characterized in that the battery assembly area and the storage area of the storage space are selectively assembled and combined with different size specifications of the spare battery according to the length of the riding distance, so as to provide sufficient power. Meet the riding demand of medium and long distance, and thus improve the assembly joint margin and extend the power supply time. 201024135 Another object of the present invention is to provide a spare battery coupling structure for an electric motor vehicle, which uses a positioning joint portion and a positioning lock portion to stably fix a spare battery in a battery pack region of a storage space, thereby improving assembly and power. Supply stability and reliability.
為達上述之目的，本發明提供一種電動機車之預備 電池結合構造，其係在一腳踏板下方裝設一主電池，並 在-機車錄下方設有-置物空間，備電池結合構 造的特徵在於：該置物空_-部分用以做為一電池組 ^區’以選擇性組裝結合—預備電池。該電池組裝區具 電性連接部及-定位結合部，預備電池具有一電 ^部及一定位鎖付部。該電力供應部連接至該電性 从壯2該疋位鎖付部與該電池崎區之定位結合部鎖 付-合’以將該預備電池固定在該電池組裝區内。 =本發明之-實施例中，料池組裝 於該置 物空間的後半部。 在本發明之實施彳种，該置物㈣祕半部相對 位於了輪聽n與-相-的—樞無之後方。 細獎r#發明之—實施例中’該預備電池組裝於該電池 =區内’且該預備電池向前延伸至該置物空間之一置 在本發明之一實施例 部形成在該· 部該雜連接部及雜結合 、、也组裝:施例中’該電性連接部形成在該電 池、裝側，較錢合部形成德電池組裝區之 6 201024135 另一側。 在本發明之一實施例中，該電池組裝區之定位結合 部係一鎖芯座。 在本發明之-實_中，該雜電池係在底部形成 該電力供應部及該定位鎖付部。 在本發明之一實施例中’該電力供應部形成在該預 備電池之一侧，該定位鎖付部形成在該預備電池之另一 侧。 在本發明之一實施例中，該預備電池之定位鎖付部 包含一固定座及一鎖栓，該固定座固定在該預備電池 内，該鎖栓穿過該固定座，且該鎖栓具有一操作端及一 鎖付端，該鎖付端對應於該鎖芯座。 在本發明之一實施例中，該主電池選自錯酸電池或 鋰電池。 在本發明之一實施例中，該預備電池選自鉛酸電池 或鋰電池。 【實施方式】 為了讓本發明之上述及其他目的、特徵、優點能更 明顯易懂’下文將特舉本發明較佳實施例，並配合所附 圖式，作詳細說明如下。 請參照第2及3圖所示’本發明較佳實施例之電動 機車之預備電池結合構造主要係應用於電動機車之領 域，其係在一電動機車2之一腳踏板21下方裝設一主 201024135 電池3，並在一機車坐墊22下方及一車殼23内側有一 置物空間24，且由該置物空間24的一部分用以做為一 電池組裝區A ’以組裝結合一預備電池4。 請參照第2及3圖所示，本發明較佳實施例之電動 機車2設有該腳踏板21，以供機車騎士之雙腳踩踏’ 該腳踏板21下方凹設形成一電池空間210，以供組裝 該主電池3。該主電池3較佳選自鉛酸電池或鋰電池。 該電池空間210上另有一蓋板(未繪示）能蓋設封閉該電 池空間210 ’及該蓋板上另可能有一踏塾（未繪示）’以 供雙腳踩踏。在一般短距離騎乘狀態下，該電動機車2 不需安裝該預備電池4 ’僅需以該主電池3提供主要電 力，以驅動該電動機車2之電動馬達(未繪示）轉動，即 可驅使該電動機車2移動前進。 請再參照第2及3圖所示，本發明較佳實施例之機 車坐墊22下方設有該車殼23，該車殼23可選擇由塑 _ 膠或金屬等耐久性材料製成，該機車坐墊22下方及該 車殼23内侧设有該置物空間24，其可利用一體成型或 分開製造再組裝等方式形成該置物空間24。該置物空 間24位於一後輪25及一對後輪避震器26的上方，並 受一車體框架27所環繞。在本發明中，該置物空間24 的-部分用以做為該電池組裝區A，且較佳係由該置物 空間24的一後半部做為該電池组裝區a。更詳言之， 該置物空間24的後半部（亦即該電池組裝區A)係相對 位於該後輪避震器26與車體框架27的一樞接點261之 201024135 後方。再者，該置物空間24之一前半部則形成一置物 區B。該電池組裝區A用以組裝結合該預備電池4。在 某些使甩狀態下，本發明可選用更大尺寸規格之該預備 電池4,此時，該預備電池4可向前延伸至該置物空間 24之置物區B，甚至佔滿該置物區B。In order to achieve the above object, the present invention provides a spare battery coupling structure for an electric motor vehicle, which is provided with a main battery under a foot pedal, and is provided with a storage space under the locomotive record, and features a battery-bonding structure. It is that the storage space is used as a battery pack to selectively assemble and combine the battery. The battery assembly area has an electrical connection portion and a positioning joint portion, and the spare battery has an electric portion and a positioning lock portion. The power supply unit is coupled to the electrical coupling unit and the positioning coupling portion of the battery pack to lock the spare battery in the battery assembly area. In the embodiment of the invention, the chute is assembled in the rear half of the storage space. In the practice of the present invention, the semi-part of the compartment (4) is relatively located behind the hub of the n- and phase-of-phase. In the embodiment, the spare battery is assembled in the battery=region and the spare battery extends forward to one of the storage spaces. The miscellaneous connection portion and the miscellaneous connection are also assembled. In the embodiment, the electrical connection portion is formed on the battery and the mounting side, and the other side of the battery assembly area is 6 201024135. In an embodiment of the invention, the positioning portion of the battery assembly area is a lock core. In the present invention, the hybrid battery forms the power supply portion and the positioning lock portion at the bottom. In an embodiment of the invention, the power supply portion is formed on one side of the prepared battery, and the positioning lock portion is formed on the other side of the spare battery. In an embodiment of the present invention, the positioning locking portion of the spare battery includes a fixing base and a locking bolt, the fixing base is fixed in the spare battery, the locking bolt passes through the fixing base, and the locking bolt has An operating end and a locking end, the locking end corresponding to the lock core. In one embodiment of the invention, the primary battery is selected from a fault acid battery or a lithium battery. In an embodiment of the invention, the preliminary battery is selected from the group consisting of a lead acid battery or a lithium battery. The above and other objects, features, and advantages of the present invention will become more <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; Referring to FIGS. 2 and 3, the spare battery assembly structure of the electric motor vehicle according to the preferred embodiment of the present invention is mainly applied to the field of an electric motor vehicle, which is provided below a foot pedal 21 of a motor vehicle 2. The main battery 20104 is a battery 3, and has a storage space 24 below a locomotive cushion 22 and inside a casing 23, and a portion of the storage space 24 is used as a battery assembly area A' to assemble and assemble a spare battery 4. Referring to FIGS. 2 and 3, the electric motor vehicle 2 of the preferred embodiment of the present invention is provided with the foot pedal 21 for the bicycle rider's feet to step on. The foot pedal 21 is recessed to form a battery space 210. For assembling the main battery 3. The main battery 3 is preferably selected from a lead acid battery or a lithium battery. The battery space 210 has a cover (not shown) that can cover the battery space 210 ′ and another pedal (not shown) on the cover for stepping on the feet. In the normal short-distance riding state, the electric motor vehicle 2 does not need to install the spare battery 4', and only needs to provide main power to the main battery 3 to drive the electric motor (not shown) of the electric motor vehicle 2 to rotate. The electric motor vehicle 2 is driven to move forward. Referring to FIGS. 2 and 3, the locomotive 23 is disposed under the locomotive cushion 22 of the preferred embodiment of the present invention. The hood 23 may be made of a durable material such as plastic or metal. The storage space 24 is provided below the seat cushion 22 and inside the vehicle casing 23, and the storage space 24 can be formed by integral molding or separately manufacturing and reassembling. The storage space 24 is located above a rear wheel 25 and a pair of rear wheel suspensions 26 and is surrounded by a body frame 27. In the present invention, the portion of the storage space 24 is used as the battery assembly area A, and preferably a rear half of the storage space 24 is the battery assembly area a. More specifically, the rear half of the storage space 24 (i.e., the battery assembly area A) is located rearward of 201024135 of a pivot point 261 of the rear wheel shock absorber 26 and the body frame 27. Further, a front portion of one of the storage spaces 24 forms a storage area B. The battery assembly area A is used to assemble and bond the spare battery 4. In some states, the present invention may select a larger size of the spare battery 4, in which case the spare battery 4 may extend forward to the storage area B of the storage space 24, even occupying the storage area B. .
請參照第2、3、4及5圖所示，本發明較佳實施例 之電池組裝區A在底部形成有一電性連接部28及一定 位結合部29。該電性連接部28較佳形成在該電池組裝 區A之一側，而該定位結合部29較佳形成在該電池組 裝區A之另一側。同時’該電性連接部28及定位結合 部29係相對位於該後輪避震器26與車體框架27的樞 接點261之後方。在本實施例中，該電性連接部28係 一凸塊狀之插頭構造’並在其上表面凸設有至少二電性 端子281 ;但在其他實施例中，該電性連接部28亦可 能置換成一插座構造（未續示）’此時該電性連接部28 凹設形成在該電池組裝區A之底部，該電性端子281 則可以是凸設或凹設狀之端子（未繪示）。再者，該定位 結合部29是選自-圓柱狀之鎖芯座，其内部設有一鎖 芯291。該躺29i之上表面具有一鎖检孔（未標示）， 其功能將另於下文詳細說明。 請翏照笫 叫'…丨、伞f明較佳實施分 之預備電池4躲要容胁該置物” 24後 开 成的電池組裝區A内。依照使用需求，本 有數顆不同尺寸麟之騎 4，以供選 = 201024135 該置物空間24 ’例如：預備一顆尺寸相同於該電池組 裝區A的預備電池4’及另預備一顆更大尺寸規袼之預 備電池4(此時，該預備電池4向前延伸至該置物空間 24之前半部所形成的置物區B)。藉此，本發明即可視 騎乘距離更換使用具有不同規格的預備電池4。再者， 該預備電池4係在其底部形成一電力供應部41及該定 位鎖付部42。該電力供應部41較佳形成在該預備電池 4之底部一侧，及該定位鎖付部42較佳形成在該預備 電池4之底部另一側。在本實施例中，該電力供應部 41係一插座構造’其内表面凹設有至少二電性接點 411，該電性接點411係數個凹設狀之插槽接點；但在 其他實施例中，該電力供應部41亦可置換成一凸塊狀 之插頭構造（未緣示）’及該電性接點411可以是數個凸 設狀之端子，此時該電力供應部41凸設形成在該預備 電池4之底部中。再者’該定位鎖付部42包含一圓柱 狀之固定座421及一鎖栓422 ’該固定座421傲設固定 在該預備電池4内部，及該鎖检422可轉動的穿過該固 疋座421，且該鎖栓422具有一操作端423及一鎖付端 424，該操作端423裸露於該預備電池4之上表面，以 供手動轉動操作；及該鎖付端424裸露於該預備電池4 之底表面所形成的一凹部空間（未標示）中，並對應於該 定位結合部29之鎖芯291。 請再參照第2、3、4及5圖所示，當該電動機車2 處於一般短距離騎乘狀態時，本發明不需將該預備電池 201024135 4組裝在該電池組裝區Aj^。此時，單純由該主電幻 提供主要電力’以驅動該電動機車2之電動馬達(未緣 不）轉動，進而驅使該電動機車2移動前進。再者，由 於該電池組裝區A呈狀態，^該電池組裝區A連 通於該谷置卫間24之置物區B ’因此該電池組裝區a 及置物區B可提供—超大内部空間，以供容置機車騎士 之隨身物品’例如手提袋，半罩式安全帽或全罩式安全 帽等。 另一方面’當該電動機車2處於中長距離騎乘狀態 時，機車騎士可選擇將適當規格之該預備電池4組^ 合於該電池崎區A内。在組裝„，顧備電池: 之電力供應部41的電性接點411最終將對應電性連接 於該電池組裝區A之電性連接部28的電性端子。 同時，該預備電池4之定位鎖付部42的鎖拴422之鎖 付端424將對應插入該電池組裝區A之定位結合部29 的鎖芯291之鎖栓孔内。接著，機車騎士可手動操作該 鎖栓422的操作端423，以轉動該鎖栓422 ,使該鎖付 端424鎖付結合在該鎖芯291之鎖栓孔内。由於該電力 供應部41及定位鎖付部42分別位於該預備電池4之底 部的二侧，且該電力供應部41及定位鎖付部42皆有組 裝結合效果，及該定位鎖付部42具有鎖固效果，因此 能將該預備電池4穩固的結合在該電池組裝區A内。 藉此，當機車騎士騎乘該電動機車2 一段時間造成該主 電池3耗盡電力時，該預備電池4將能提供額外電力， 11 201024135 使該電動機車2能繼續行駛更長的距離。在該電、、也組裝 區A容置有該預備電池4時，該容置空間24之置物區 B仍玎用以放置機車騎士之隨身物品，例如手提袋或半 罩式安全帽等。 其 此外，當機車騎士具有超長距離之騎乘需求時，本 發明玎選用更大尺寸規格之該預備電池4，此時，該預 備電池4向前延伸至該置物空間24之前半部所形成的 置物區B内，甚至可設計該預備電池4之尺寸使其佔滿 整個該電池組裝區A及置物區B。因此，本發明將咳置 物空間24之一部分設計做為該電池組裝區a ,確實能 提升空間的有效利用率、增加置物空間、擴大置物便利 性及延長電力供給時間。 如上所述，相較於第1圖習用電動機車之電池結合 構造僅設有單一電池空間12以容置單一顆鋰電池14， 因而只能提供有限的電力、無法更換電池規格，且也連 響 帶限制該置物空間13之容量而造成置物不便等缺點， 第2圖之本發明利用該置物空間24的一部分(如後半部） 做為該電池組裝區A，以選擇性組裝結合該預備電池 4’不但可確保該置物空間24保有較大容量，並可選擇 性提供預備電力，進而有利於提升空間的有效利用率、 增加置物空間及擴大置物便利性。再者，依騎乘距離長 短’亦可利用該置物空間24之電池組裝區A及置物區 B選擇性魬裝結合不同尺寸規格的預備電池4，以便提 供足夠電力滿足中長距離的騎乘需求，進而提高組裝結 12 201024135 合裕度及延長電力供給時間。另外，本發明亦可利用該 定位結合部29及定位鎖付部42將該預備電池4穩固定 位在該置物空間24之電池組裝區A内，進而提高組裝 結合及電力供給的穩定度與可靠度。 雖然本發明已以較佳實施例揭露，然其並非用以限 制本發明，任何熟習此項技藝之人士，在不脫離本發明 之精神和範圍内，當可作各種更動與修飾，因此本發明 之保護範圍當視後附之申請專利範圍所界定者為準。 ❿ 【圖式簡單說明】 第1圖：習用電動機車之電池結合構造之立體圖。 第2圖：本發明較佳實施例之電動機車之預備電池結合 構造之立體圖。 第3圖：本發明較佳實施例之電動機車之預備電池結合 構造之侧視圖。 • 第4圖：本發明較佳實施例之電性連接部及電力供應部 之剖視圖。 第5圖：本發明較佳實施例之定位結合部及定位鎖付部 之剖視圖。 【主要元件符號說明】 10 機車坐墊 11 車殼 12 電池空間 13 置物空間 14 鋰電池 2 電動機車 13 201024135 21 腳踏板 210 電池空間 22 機車坐墊 23 車殼 24 置物空間 25 後輪 26 後輪避震器 261 樞接點 27 車體框架 28 電性連接部 281 電性端子 29 定位結合部 291 鎖芯 3 主電池 4 預備電池 41 電力供應部 411 電性接點 42 定位鎖付部 421 固定座 422 鎖栓 423 操作端 424 鎖付端 A 電池組裝區 B 置物區 參 14Referring to Figures 2, 3, 4 and 5, the battery assembly area A of the preferred embodiment of the present invention has an electrical connection portion 28 and a fixed joint portion 29 formed at the bottom. The electrical connection portion 28 is preferably formed on one side of the battery assembly area A, and the positioning joint portion 29 is preferably formed on the other side of the battery assembly area A. At the same time, the electrical connecting portion 28 and the positioning joint portion 29 are located opposite to the pivot point 261 of the rear wheel shock absorber 26 and the body frame 27. In this embodiment, the electrical connection portion 28 is a bump-like plug structure 'and has at least two electrical terminals 281 protruding on the upper surface thereof; but in other embodiments, the electrical connection portion 28 is also It may be replaced with a socket structure (not shown). At this time, the electrical connection portion 28 is recessed at the bottom of the battery assembly area A, and the electrical terminal 281 may be a protruding or recessed terminal (not drawn) Show). Further, the positioning joint portion 29 is selected from a cylindrical lock core seat having a lock core 291 therein. The upper surface of the lie 29i has a lock hole (not shown), the function of which will be described in detail below. Please refer to the squeaking '...丨, Umbrella f, the preferred implementation of the battery 4 to hide the storage. 24 After opening the battery assembly area A. According to the use needs, there are several different sizes of the ride 4, for selection = 201024135 The storage space 24 'for example: prepare a spare battery 4' of the same size as the battery assembly area A and prepare a larger size gauge reserve battery 4 (at this time, the preparation The battery 4 extends forward to the storage area B) formed by the front half of the storage space 24. Thereby, the present invention can replace the spare battery 4 having different specifications depending on the riding distance. Further, the preliminary battery 4 is attached. A power supply portion 41 and a positioning lock portion 42 are formed at the bottom. The power supply portion 41 is preferably formed on the bottom side of the spare battery 4, and the positioning lock portion 42 is preferably formed on the spare battery 4. In the present embodiment, the power supply unit 41 is a socket structure, and the inner surface thereof is recessed with at least two electrical contacts 411, and the electrical contacts 411 are recessed. Point; but in other embodiments, the power supply unit 41 The plug structure (not shown) can be replaced with a bump, and the electrical contact 411 can be a plurality of protruding terminals. At this time, the power supply portion 41 is convexly formed in the bottom of the spare battery 4. Furthermore, the positioning lock portion 42 includes a cylindrical fixing seat 421 and a locking bolt 422. The fixing seat 421 is proudly fixed inside the spare battery 4, and the lock detecting 422 is rotatably passed through the solid portion. The locking seat 422 has an operating end 423 and a locking end 424. The operating end 423 is exposed on the upper surface of the spare battery 4 for manual rotation operation; and the locking end 424 is exposed to the A recessed space (not shown) formed by the bottom surface of the spare battery 4 corresponds to the lock cylinder 291 of the positioning joint portion 29. Please refer to Figures 2, 3, 4 and 5 for the electric motor vehicle. 2 In the general short-distance riding state, the present invention does not need to assemble the spare battery 201024135 4 in the battery assembly area Aj^. At this time, the main electric power is simply provided by the main phantom to drive the electric motor 2 The motor (not edged) rotates, thereby driving the motor car 2 to move Further, since the battery assembly area A is in a state, the battery assembly area A is connected to the storage area B of the valley guard room 24, so the battery assembly area a and the storage area B can provide an extra large internal space. For the accommodation of the locomotive knight's belongings such as a tote bag, a half-cover helmet or a full-face helmet, etc. On the other hand, when the electric car 2 is in the middle and long distance riding state, the locomotive knight can choose The battery pack 4 of the appropriate size is assembled in the battery pack area A. In the assembly, the electrical contact 411 of the power supply unit 41 is finally electrically connected to the battery assembly area A. An electrical terminal of the electrical connection portion 28. At the same time, the locking end 424 of the lock 422 of the positioning lock portion 42 of the spare battery 4 will be inserted into the lock hole of the lock cylinder 291 of the positioning joint portion 29 of the battery assembly area A. Then, the locomotive rider can manually operate the operating end 423 of the latch 422 to rotate the latch 422 so that the latching end 424 is locked in the latch hole of the lock cylinder 291. The power supply unit 41 and the positioning and locking unit 42 are respectively located on the two sides of the bottom of the spare battery 4, and the power supply unit 41 and the positioning and locking unit 42 have an assembly and binding effect, and the positioning and locking unit 42 has The locking effect is such that the preliminary battery 4 can be firmly incorporated in the battery assembly area A. Thereby, when the locomotive rider rides the locomotive 2 for a period of time causing the main battery 3 to run out of power, the spare battery 4 will be able to provide additional power, 11 201024135 enabling the locomotive 2 to continue driving for a longer distance. When the spare battery 4 is accommodated in the electric and assembly area A, the storage area B of the accommodating space 24 is still used for placing the cyclist's belongings, such as a tote bag or a half-hood type helmet. In addition, when the locomotive knight has a long-distance riding requirement, the present invention selects the spare battery 4 of a larger size, and at this time, the preliminary battery 4 extends forward to the front half of the storage space 24. In the storage area B, the size of the spare battery 4 can be designed to occupy the entire battery assembly area A and the storage area B. Therefore, the present invention designs a portion of the cough space 24 as the battery assembly area a, which can effectively improve the space utilization efficiency, increase the storage space, expand the convenience of storage, and prolong the power supply time. As described above, compared with the battery-bonding structure of the conventional electric motor vehicle of FIG. 1, only a single battery space 12 is provided to accommodate a single lithium battery 14, so that only limited power can be supplied, battery specifications cannot be replaced, and the battery is also ringing. The invention has the disadvantages of limiting the capacity of the storage space 13 and causing inconvenience to the storage. The invention of FIG. 2 utilizes a portion (such as the rear half) of the storage space 24 as the battery assembly area A for selectively assembling and combining the preliminary battery 4. 'It not only ensures that the storage space 24 has a large capacity, but also selectively supplies the preparatory power, thereby facilitating the effective utilization of the space, increasing the storage space and expanding the convenience of storage. Furthermore, according to the length of the riding distance, the battery assembly area A and the storage area B of the storage space 24 can be used to selectively package the spare batteries 4 of different sizes to provide sufficient power to meet the riding demand of medium and long distances. In turn, the assembly junction 12 201024135 is increased and the power supply time is extended. In addition, the positioning joint portion 29 and the positioning lock portion 42 can stably fix the spare battery 4 in the battery assembly area A of the storage space 24, thereby improving the stability and reliability of assembly and power supply. . The present invention has been disclosed in its preferred embodiments, and is not intended to limit the invention, and the present invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application. ❿ [Simplified description of the drawing] Fig. 1 is a perspective view of the battery coupling structure of the conventional electric motor vehicle. Fig. 2 is a perspective view showing a configuration of a battery assembly of a motor vehicle according to a preferred embodiment of the present invention. Fig. 3 is a side view showing the configuration of a battery assembly of the electric motor vehicle according to a preferred embodiment of the present invention. Fig. 4 is a cross-sectional view showing the electrical connection portion and the power supply portion of the preferred embodiment of the present invention. Fig. 5 is a cross-sectional view showing the positioning joint portion and the positioning lock portion of the preferred embodiment of the present invention. [Main component symbol description] 10 Locomotive cushion 11 Car shell 12 Battery space 13 Storage space 14 Lithium battery 2 Electric motor car 13 201024135 21 Foot pedal 210 Battery space 22 Locomotive cushion 23 Car shell 24 Storage space 25 Rear wheel 26 Rear wheel suspension 261 pivot point 27 body frame 28 electrical connection 281 electrical terminal 29 positioning joint 291 lock cylinder 3 main battery 4 spare battery 41 power supply 411 electrical contact 42 positioning lock 421 fixed seat 422 lock Bolt 423 Operating end 424 Locking end A Battery assembly area B Storage area reference 14