1229487 政、發明說明： 【發明所屬之技術領域】 本毛明係關於直流電動機及使用該直流電動機之燃料 泵例如搭載於汽車等之引擎的附屬燃料泵。 【先前技術】 此種用於燃料泵之直流電動機係如日本特開2⑻卜 323856號公報所示，在安裝於旋轉軸的轉子的一端部具有 整流子，該整流子在與旋轉轴垂直的平面上形成有與電刷1 接觸之接觸面。該直流電動機具有與整流子的接觸面接觸< 之複數個電刷，由這些電刷供電給轉子線圈使之旋轉而將 燃料供應至引擎。 然而，習用之直流電動機係如前述公報所示，對於電 動機之供電端子以及電刷係透過稱為猪尾㈣㈣的供電 引線而連接，並使用電刷彈簧（brush⑽㈣）使電刷按塵於 整流子的接觸面。電刷附設有用以將電刷保持在與旋轉轴 平行的方向之電刷保持筒，電刷可移動地保持在電刷保持^ 筒内’隨著電刷與整流子的接觸面之磨耗而在該電刷保持_ 筒内移動，以一直按壓於整流子的接觸面。 (專利文獻）曰本特開2〇〇1-323856號公報，特別是其 中之第6、7、8、11圖及其說明。 【發明内容】 (發明所欲解決之技術問題） 然而習用之直流電動機因使用包含連接供電端子 刷之供電引線、電刷彈簧、電刷保持筒等多數個與電刷有 3】5丨85 5 1229487 關聯的零件有電刷保持部分因而大型化之問題。又由 於使用很多零件’ g此有製造時該等零件的接合精度的誤 差變大之傾向’欲將電刷保持部分製成安^的尺寸有其困 〜ν π丨丨丨』队艮過的電刷 件之直流電動機以及使用該直流電動機之燃料栗。 (解決問題之技術手段） 明之直流：動機係具備··安裝於旋轉軸，可在磁1 ^ t轉子，安裝於該轉子，在與前述旋轉軸大致垂 直的平面上具有接觸面之替 曲之正抓子，與該整流子之前述接觸 面接觸之電刷；具有板彈菩 科1^ 败弹貫。卩與知子部，保持前述電刷並 對八i、笔之電刷保持件· 刷伴掊杜&甘士 及用以保持該電刷保持件之電 刷保持件叙’其中’前述板 形成，前述板彈箬部係伴持……。”糸由板材-體 與前述旋轉轴平行的方向㈣ 2达電㈣大致 係透過前述板彈菩# + ^ j、接觸面1述端子部 汉5早κ σ卩供電給前述電刷。 本；月之另一直流電動機係具備· { 在磁場中轉動之轉子；安裝於 以方㈠疋轉抽，可 致垂直的平面上且 /子，在與前述旋轉軸大 叫丄丹有接觸面之举泠工· 接觸面接觸之第一、第二 :丄與該整流子之前述 供電之第一電刷保持件；伴持夺前述第一電刷並對其 丁丨丁 ’ 1示符別述第― 第二電刷保持件；以及用^ —電刷並對其供電之 .. 及用乂保持前述第一、第-雷说丨/里4士 件之電刷保持件殼，其中， 4第-電刷保持 別具有由板材—體弟―、第二電刷保持件分 也成之㈣黃部與端子部，前述第—電 315185 6 ^229487 刷保持件之前述板彈簧部係用以 第-電刷以大致與前述旋轉轴平行的:迷第—電刷並使該 面，前述第一電刷保持件之前述端向按屢於前述接觸 供電給前述第一電刷；前述 ：：透過該板彈箐部 部係用以保持前述第二電刷並使該第呆之前述板彈菁 旋轉轴平行的方向按屡於前述接觸面7 =大致與前述 件之前述端子部係透過該板彈菁部 電刷保持 本發明之燃料泵係具備：於其内部：=弟二電刷。 磁輕⑽小配置在該磁辆的中心線上γ成磁^之筒狀的I 該旋轉轴，可在前述磁場中轉動之轉子轉軸’安裝於 一端部，在與前述旋轉軸大致垂直的平面m㈣子的 整流子；與該整流子之前 數：觸面之 拄益、+、— 土土 A ; w授觸之歿數個電刷；去 俨.配二“卜端部亚覆蓋前述複數個電刷之第-殼 :對:=第^_分別支持前述複數個電刷的各個 i、i、也之歿數個電刷保 -端部之葉輪(i_er);以及二：f:: “㈣軸的另Λ 軸的另_端邙 復一茱輪並支持前述旋轉| 料… 弟二殼體’而藉由前述葉輪的旋轉，使燃· 電刷广:厄的内部空間中流通’使前述整流子及複數個 I _冑分浸潰在該燃料内之燃料I，其中，前述複 =電！:保持件分別具有由板材一體形成之板彈黃部與端 、"迟板彈更'部係保持前述複數個電刷中之對應的電 刷並=之以大致與前述旋轉軸平行的方向按壓於前述接觸 J述έ而子部係' 透過前述才反冑簧部# t給前述複數個電 刷中之對應的電刷。 7 315185 1229487 (發明之功效） 依本發明之直流電動機係使用具有板彈簧部及端子部 =電^保持件’該板彈簧部及端子部係由板材—體形成。 f板無簧部係保持電刷並使該電刷以大致與前述旋轉轴平 方向按Μ於整流子的接觸面。端子部係透過板彈 =給電刷。由於板彈簣部與端子部係由板材—體形成， =於保持電刷之零件數減少，能將電刷保持件形成得 接合 ”丨/、知子。卩為一體形成，能改善因丨 '起之尺寸參差’達成電刷保持件之尺寸的安定 。由此可使直流電動機更小型化，以及槎古亩ϋ & U 的尺寸精度。 乂及棱回直流電動機 又依本發明之另一直流雷叙祕 ^ 持件各具有以板材二：第-及第二電刷保 第-電：:=!!板彈菁部係保持前述第-電刷並使該 面，前述第-電刷保持件：i=方向按㈣述接' 供電給前述第—電ml =而子部係透過該板彈簧部j 部係伴持前 則处弟一電刷保持件之前述板彈簧 軸平行的方向电刷以大致與前述旋轉 第板彈菁部供電給前述第二電刷。由於 弟一之各電刷保持件之板 ^ -體形成，因此用於保持電刷之 滅而一係由板材 持件形成得更小型 J數減〉'，能將電刷保 成，能改善因接合，=彈菁部與端子部為-體形 差引起之尺寸參差，達成電刷保持件 δ 315185 1229487 之尺寸的安定化。ώ 甘难古、.古& 高直流電動機的尺寸精度。1機更小型化’以及提 依本务明之燃料栗，複數個電刷保持部 板彈簧部及端子部，前述板彈簧部係 應的㈣錢之以大致與前述旋轉轴平行的方向按遂於前 :接=二迷端子部係透過板彈簧部供電給對應的電 材=ΓΓ保持件各自的板彈簧部與端子部係由 板材體a成，因此與複數個電刷之各個 電刷的零件數減少，能將電刷保持件形成 :::::與端子部為-體形成，能改善因接合誤差ί: 之尺寸a ’達成電刷保持件之尺寸的安定化。由此可使 燃料泵更小型化，以及提高燃料泵的尺寸精度。 【實施方式】 & 以下參照圖式說明本發明之最佳實施形態。 第一實施形態 一弟1圖係顯示使用本發明之直流電動機之燃料泵的第參 =施形態之縱剖視圖，第2圖係顯示其俯視圖，第3圖鲁 係頌不第1圖之ΠΙ_Π][線的剖視圖，第4圖係顯示第1圖 之1線的剖視圖’第5圖係顯示第一實施形態中之兩 :電刷保持件的透視圖，第6圖係顯示第一實施形態中之 電刷保持件的端子部之透視圖。 、此第一實施形態為燃料泵100,燃料泵100附屬於搭 載在汽車上的引擎，將汽油等之液體燃料供給至引擎。 燃料泵1 00係由依本發明而改良過的直流電動機20 315185 9 1229487 及由直流電動機20所驅動之泵30組人 具有筒狀的磁軛10、設在該磁軛1〇 Q成。燃料泵1〇〇 11、設在磁軛ίο的下端部之第二殼體之弟一殼體 第一殼體π構成上側支架（bracket)^命及旋轉輛13。 (brush holder case)。第二殼體冉…包刷保持件殼 月且1 z構成下側古加 ， 殼。第-殼體11以可旋轉的方式支持旋轉木，稱為泵 第二殼體12透過金屬軸承14以可旋轉：上端部。 13的下端部。又第二殼體12具有 式支持旋轉軸 之金屬軸承15 ’此金屬軸承15承受旋:二13 ::端部丨 磁軛10的上端部由第一殼體 隹力。 鎖，其下端部由第二殼體（栗殼） 士、、件极）11閉 第-殼體"及第二殼，=:鎖’如此藉由磁心、 間16。 …2而在磁輕10的内部形成密閉空 第一殼體（電刷保持件殼）u係由例如聚酸 樹脂作成大致圓板狀。第一殼體（電刷保持件殼）n呈） 面m與外面m，此内面lla與外面Ub互相相對内丨 :殼體（電刷保持件殼m的外自川突出形成有燃料吐出嫌 管17及燃料釋放閥u。如第2圖所示，燃料吐出管17形 成在第-殼體（電刷保持件殼）i i的中心、部，亦即在旋轉轴 13的軸線上，燃料釋放閥18則形成在略為靠近燃料吐出 管1 7的外圍位置。 第二殼體（泵殼）12亦由樹脂作成大致圓板狀。第二殼 體（泵殼）12配置有燃料吸入管19。汽油等之燃料受到泵3〇 的驅動而k燃料箱經由燃料吸入管丨9吸入，通過磁軛⑺ 315185 10 1229487 的内部空間16而從燃料吐出您 16中的壓力異常上升時，燃二二供給至引擎。内部空間 燃料箱，而使内部空間16的燃料壓：：：啟使燃料回到 直流電動機20具有磁軛1〇 轉子22、整流子23、電刷 轉轴13、场磁鐵2卜 /置23、及電刷保持件 旋轉軸13配置在磁軛1〇 裝置％。 如複數個磁鐵，安裝在磁t 1Λ 軸上。场磁鐵幻為例 文忒在磁軛1〇的内周面， 内周產生磁場。轉子22耍# ^ 琢磁鐵21的 将于22文裝於旋轉軸13，隔 磁鐵21的内周面相對。轉 ]隙，、％ 為可在磁場内鞋私 於轉子22的轉子線圈供 ％内轉動者，對 ^ 1 ^ /瓜，轉子22即與旋轉軸 13在一起磁場内旋轉。 季 整流子23安裝在轉子 2的上螭部。此整流子23包含 配置在旋轉軸13周圍之複 匕s ^ ^ 後數片整流子片23a。整流子23 $成有與電刷之接觸面24，卜 ,..^ 此接觸面24位在與該旋轉軸 3垂直的平面上。接觸面 接觸面 上存在有各整流片23a之各 命如帛5圖所示，電刷褒置25包含一對電刷25卜252 7 Γ = 251、252分別接觸在接觸面24之同-圓周上，伴隨 者疋轉軸13的旋轉而在接觸面24上滑動。由於整流子u :旋轉’各電刷251、252依序接觸各整流月^而供電給 : 哥之轉子線圈。電刷25 1、252分別從連接於直流電 '、的正端子之正側供電引線、及連接於直流電源的負端子 之負側供電引έ令+ h ^ 丨、尿接又電力而將直流電流供給至轉子線圈。 弟貫施形態中電刷25 1、252係使用角柱狀的電刷， 11 315185 1229487 此電刷251、252之與整流子23的接觸面w係邊長* 〇賴 ίί:方形。電刷⑸、252係以例如石墨為主成分之石 =刷保持件|置26亦——與電刷251、加對應而配 固第—貫施形態中係使用與電刷25卜252對應之 二刷保持件261，。此電刷保持件裝：發 =二構件。各電刷保持件261，形成互為相同的形 電刷保：杜亚由相同的材料製成。特別如第5圖所示，各( .二 61、262具有板彈簧部27及端子部28，該等 板彈簧部27及端子邱总山 《及寺 成電刷保拉杜 係由一板材彎曲而一體形成。構 #錫拓、261、262之板材係使用例如板厚G.5mm之 = 保持件261係由上述板材彎曲形成，電刷 亦由相同材料之另-板材，f曲而形成。 各電刷保持件2 61、？ t 所干Μ , σ板彈簧部27係如第5圖 兮斤^ 千仃之兩個平板部27a、27b，及連钍 该寺平板部27a、27h沾 山 汉逆… 的一鳊之傾斜的連結部27c。 板部27a、27b及連姓邱97 + , /c上述千β 极^而脚 為由同-材料，例如上述銅 板芎曲而一體形成。 上側的平板部27a係接合於第一 體）11之内面11a而配晉^ 、电鄕持叙 •置干板部27b係與整流子23之接 觸面24相對而配置。此 之接 AA 此千板部27b主要藉由連处 的彈力而向整流子23的接觸面24彈麼。I…〜 拉下側之平板部Μ之中央位置形成有正方形的#刷伴 持孔⑽。此正㈣的電刷保持孔2 ^的电刷保 之相向的兩邊形成 315185 12 1229487 有一對相對的電刷保持片27e，另外的 一對相對的電刷佯拉Η σ 、、邊形成有 板部27b的上方：1Γ。一對電刷保持片27e係向平 m的下… 對電刷保持片27“系向平板部 的電刷251号2刷保持孔2則作成恰可拔入角柱狀 52而予以保持之大小，而如第5圖所示，怜 2將角柱狀的電刷251、㈣入電刷保持孔27d而嵌二 中。—呈四角柱之電刷251、252具有兩對相對的外面25b、 d述-對電刷保持片27e抵接於四角柱之電刷251、 =之相對的—對外面25b，另—對電刷保持片27f則 於電刷251、25?夕里一似Μ 一 子卜面25C，以藉由該電刷保持片 7e、2 7f穩固地保持電刷251、252。 a刷保持件261、262之各下側的平板部27b藉由連社 部27c的彈力而將保持於電刷保持孔^之電刷251、⑸ =壓在整流子23的接觸面24上。電刷25i、會因與整 *子23之滑動摩擦而磨耗。當電刷251、加磨耗時，因 受到連結部27c的彈力而在與旋轉軸13大致平行的方向自^ 動朝整流+ 23的接觸面24移動，故電刷25卜252可一直钃 按壓在整流子23的接觸面24上。換言之，電刷251、252 可隨著磨耗而以補償其磨耗的方式移動，而可一直按壓在 整流子23的接觸面24上。電刷保持件261、262的各端子 部28 ’係從板彈簧部27的平板部27&的一端垂直彎折而 與板惮簧部27 —體作成。各端子部28分別具有端子板28& 及連結部28b。此端子板28a及連結部28b亦一體作成。 連結部28b係從板彈簧部27的平板部27a的一端垂直 315185 13 !229487 弓折而成。端子板28a則從連結部咖彎折θ角而成。平 板4 27a的另一端形成有與該連結部28b平行的彎折 Wg ’此彎折部27g與連結部28b平行而相向。 如第3圖所示’第一殼體（電刷保持件殼川之與整流 二相向的内面…形成有兩個角柱狀的突起η:二： ::大起UC、Ud相對於旋轉軸13之軸線形成在對稱的 L為件261為保持在突起-上，電刷保持件 262 I * #大起⑴上。具體言之，各電刷保持件261、 62為由突起llc、夂厭 彎折部W之間而㈣：伴持=對向之連結部⑽與 殼川的内面Ua。”之it 體（電刷保持件 豆 各電刷保持件261、262係以 ;; 連、·。部咖及彎折部Μ從兩側挾持住突起 1C、Ud的方式保持在突起Uc、lld上。 如弟2、3及4岡％ - 形成有兩個細長之—殼體（電刷保持件殼1229487 Description of policy and invention: [Technical field to which the invention belongs] This Maoming relates to a DC motor and a fuel pump using the DC motor, for example, an auxiliary fuel pump mounted on an engine of a car or the like. [Prior Art] As described in Japanese Patent Application Laid-Open No. 323856, such a DC motor for a fuel pump has a commutator at one end of a rotor mounted on a rotating shaft, and the commutator is in a plane perpendicular to the rotating shaft. A contact surface is formed on the brush 1. The DC motor has a plurality of brushes which are in contact with the contact surface of the commutator. These brushes supply power to the rotor coil to rotate and supply fuel to the engine. However, as shown in the aforementioned publication, the conventional DC motor is connected to the power supply terminal of the motor and the brush through a power supply lead called a pigtail, and the brush is used to press the brush to the commutator. Contact surfaces. The brush is provided with a brush holding cylinder for holding the brush in a direction parallel to the rotation axis, and the brush is movably held in the brush holding barrel ^ as the contact surface of the brush and the commutator wears. The brush keeps moving inside the barrel to keep pressing on the contact surface of the commutator. (Patent Document) Japanese Patent Laid-Open Publication No. 2000-323856, and in particular Figures 6, 7, 8, and 11 and their descriptions. [Summary of the Invention] (Technical Problems to be Solved by the Invention) However, most conventional DC motors have a brush with a power supply lead, a brush spring, and a brush holding cylinder, which are connected to a power supply terminal brush. 3] 5 丨 85 5 1229487 The related part has a problem that the brush holding part is enlarged. Because of the use of many parts, 'there is a tendency for errors in the joining accuracy of these parts to increase during manufacturing', it is difficult to make the brush holding part into a safe size ~ ν π 丨 丨 丨 』 Brush motor for DC motor and fuel pump using the DC motor. (Technical means to solve the problem) Mingzhi DC: The motive system is equipped with a rotating shaft that can be mounted on a magnetic 1 ^ t rotor and mounted on the rotor. It has a contact surface on a plane substantially perpendicular to the rotation axis. A positive grasper, a brush that is in contact with the aforementioned contact surface of the commutator;卩 和 知 子部, holding the brushes described above, and the brush holder of the pen, brush companion Du & Gan Shi, and the brush holder for holding the brush holder described in 'wherein' the aforementioned plate is formed , The aforementioned board shells are associated with ... "糸 The plate-body is in a direction parallel to the aforementioned rotation axis, and the electric power is generally supplied to the aforementioned brushes through the aforementioned board bullet # + ^ j, the contact surface 1 described above, and the terminal portion κ σ 卩. This; Another DC motor of the moon is equipped with a rotor that rotates in a magnetic field; it is installed on a square plane and can be drawn on a vertical plane and / or in contact with the aforementioned rotation axis called Dan Ling Gong · The first and second contact surfaces: the first brush holder that supplies the aforementioned power to the commutator; the first brush is held by the first brush, and the first brush is held; ― The second brush holder; and ^ —brush and power supply to it .. and the brush holder housing that holds the first, second, and fourth taxis described above, of which 4th -The brush holder does not have a yellow part and a terminal part, which are divided into a plate-body brother and a second brush holder. The aforementioned first-electric 315185 6 ^ 229487 The aforementioned plate spring part of the brush holder is used for the first -The brushes are substantially parallel to the aforementioned rotation axis: the first brush-and make the surface, the aforementioned end of the first brush holder The first brush is powered by the contact before the previous contact; the foregoing: the direction through which the second elastic brush is held by the plate spring cymbal portion is parallel to the rotation axis of the first plate spring At the aforementioned contact surface 7 = the aforementioned terminal part which is substantially the same as the aforementioned part is held by the plate spring cyan brush. The fuel pump of the present invention is provided with: inside it: = the second brush. The center axis of the vehicle is a cylindrical I whose magnetic axis is γ. The rotating shaft is a rotor shaft that can rotate in the magnetic field. The rotating shaft is installed at one end and is a commutator in a plane m substantially perpendicular to the rotating axis. Count before: the benefit of the contact, +, — soil and soil A; w grant the brushes of the touch; remove the brush. With two "bu end sub-cover the first brush of the aforementioned plurality of brushes-shell: right: = 第 ^ _ Supports each of the aforementioned brushes i, i, and several brushes at the end of the impeller (i_er); and two: f :: "The other ㈣ of the ㈣-axis _ Duan Zhuo has a chakra and supports the aforementioned rotation | material ... Brother two shells' and through the rotation of the aforementioned impeller, the combustion and brushes are wide: Eh Circulates in the interior space of the fuel I that dipped the commutator and a plurality of I _ elements into the fuel, wherein the aforementioned complex = electricity !: the holders each have a plate elastic yellow portion and a terminal formed integrally from a plate. "&Quot; The late board bullets are maintained by the corresponding brush among the plurality of brushes and are pressed against the contact in a direction substantially parallel to the rotation axis, and the sub-system is reversed through the foregoing.胄 春 部 # t gives the corresponding brush among the aforementioned plurality of brushes. 7 315185 1229487 (effect of the invention) The DC motor according to the present invention uses a plate spring portion and a terminal portion = electrical ^ holding member. The part and the terminal part are formed of a plate body. The f-plate springless part holds the brush and presses the brush on the contact surface of the commutator in a direction substantially parallel to the rotation axis. The terminal part is through the plate spring = brush. Since the spring part and the terminal part of the plate spring are formed of a plate body, the number of parts for holding the brush is reduced, and the brush holder can be formed to join together "丨 / Zizi. It is integrally formed, which can improve the cause 丨 ' The size difference is to achieve the stability of the size of the brush holder. This can make the DC motor more compact, and the dimensional accuracy of 槎 古 acre ϋ & U. 乂 and edge back DC motor according to another straight line of the present invention The description of Lei Lei ^ The holders each have a plate two: the first and second brushes to protect the first-electricity :: = !! The plate bullet jing department holds the aforementioned-brush and makes the surface, the aforementioned-brush Holder: i = direction is connected as described below to supply power to the aforementioned-electricity ml = and the sub-part is through the leaf spring part j part is held in front of the brush spring holder parallel direction of the leaf spring axis The brushes supply power to the second brushes substantially in conjunction with the aforementioned rotating first plate spring part. Since the plates of the brush holders of the first one are formed, the brushes are used to hold the brushes and are held by the plate. The smaller the number of pieces is, the more the number can be reduced, and the brush can be maintained, and the joint can be improved. = The size of the terminal part is uneven due to the difference in shape, achieving the stabilization of the size of the brush holder δ 315185 1229487. Gangangu, Gugu & high dimensional accuracy of the DC motor. 1 machine is more compact 'and Tiyi The fuel pump of the present invention, a plurality of brush holders, a plate spring portion and a terminal portion, and the money saved in the plate spring portion are pushed forward in a direction substantially parallel to the rotation axis: connection = two fans terminal system Power is supplied to the corresponding electric material through the leaf spring portion. The respective leaf spring portion and the terminal portion of the holder are made of a plate body a. Therefore, the number of parts with each brush of the plurality of brushes is reduced, and the brush holder can be formed. ::::: It is formed as a body with the terminal part, which can improve the size of the brush holder due to the joining error ί: The size of the brush holder can be stabilized. This can reduce the size of the fuel pump and increase the fuel pump's Dimensional accuracy. [Embodiment] & The best embodiment of the present invention will be described below with reference to the drawings. The first embodiment 1 is a longitudinal sectional view showing the third parameter of the fuel pump using the DC motor of the present invention. , Fig. 2 is a plan view showing it, Fig. 3 is a cross-sectional view of the line 1 of Fig. 1 in the Lu System, and Fig. 4 is a cross-sectional view showing line 1 of Fig. 1; Fig. 5 is a view showing the first embodiment. Two: a perspective view of the brush holder, and FIG. 6 is a perspective view showing a terminal portion of the brush holder in the first embodiment. This first embodiment is a fuel pump 100, and the fuel pump 100 is attached to the The engine in a car supplies liquid fuel such as gasoline to the engine. The fuel pump 100 is a DC motor 20 315185 9 1229487 modified by the present invention and 30 groups of pumps driven by the DC motor 20 have a cylindrical magnet. The yoke 10 is provided on the magnetic yoke 10Q. The fuel pump 1001 and the brother of the second housing provided on the lower end portion of the yoke 1 and the first housing π constitute an upper bracket ^命 和 转车 13. (brush holder case). The second shell Ran ... covers the holder shell and 1 z constitutes the lower side of the shell. The first housing 11 supports the carousel in a rotatable manner, called a pump. The second housing 12 is rotatable through a metal bearing 14: the upper end. 13 lower end. The second housing 12 has a metal bearing 15 for supporting a rotating shaft. This metal bearing 15 is subjected to rotation: two 13 :: end portions 丨 the upper end of the yoke 10 is forced by the first housing. The lower end of the lock is closed by the second shell (chestnut), the pole-shell 11 and the second shell, and the second shell == lock ’, so that the core 16 is used. … 2 to form a closed space inside the magnetic light 10. The first case (brush holder case) u is made of, for example, a substantially circular plate made of polyacrylic resin. The first case (brush holder shell) n is shown) face m and outer face m, and the inner face 11a and outer face Ub are opposed to each other inside: the case (the outer face of the brush holder shell m protrudes from the river to form a fuel discharge suspicion The pipe 17 and the fuel release valve u. As shown in FIG. 2, the fuel discharge pipe 17 is formed at the center and part of the first case (brush holder case) ii, that is, on the axis of the rotation shaft 13, and the fuel is released. The valve 18 is formed at a position slightly close to the periphery of the fuel discharge pipe 17. The second casing (pump casing) 12 is also made of a substantially circular plate. The second casing (pump casing) 12 is provided with a fuel suction pipe 19. Fuel such as gasoline is driven by the pump 30, and the k fuel tank is sucked through the fuel suction pipe 9 and is discharged from the fuel through the internal space 16 of the yoke 315 185 10 1229487. When the pressure in your 16 rises abnormally, the fuel is supplied to two or two. To the engine. Fuel tank in the internal space, and the fuel pressure in the internal space 16 :: Start the fuel back to the DC motor 20 with a yoke 10 rotor 22, commutator 23, brush shaft 13, field magnet 2 / 23, and the brush holder rotating shaft 13 are arranged on the yoke 10% For example, a plurality of magnets are installed on the magnetic t 1Λ axis. A field magnet is used as an example. The magnetic field is generated on the inner peripheral surface of the yoke 10. The rotor 22 plays # ^ The rotating shaft 13 is opposed to the inner peripheral surface of the magnet 21. The rotation gap, and% are the rotor coils that can be used by the rotor 22 in the magnetic field. For the ^ 1 ^ / melon, the rotor 22 is rotating. The shaft 13 rotates in a magnetic field together. The quarter commutator 23 is installed on the upper part of the rotor 2. The commutator 23 includes a plurality of commutator pieces 23a arranged around the rotary shaft 13. The commutator 23 $ A contact surface 24 with the brush is formed, and the contact surface 24 is located on a plane perpendicular to the rotation axis 3. The contact surface has the life of each rectifier 23a as shown in Fig. 5 It is shown that the brush set 25 includes a pair of brushes 25, 252 7 Γ = 251, 252 are in contact with the same circumference of the contact surface 24, and slide on the contact surface 24 with the rotation of the rotary shaft 13. Due to the rectification Sub u: Rotate each brush 251 and 252 in sequence to contact each rectifier month ^ and supply power to: Brother's rotor coil. Brushes 25 1, 252 are from Connected to the direct current ', the positive side power supply lead of the positive terminal, and the negative side power supply order + h ^ 丨 connected to the negative terminal of the direct current power supply, and the direct current is supplied to the rotor coil. In the form, the brushes 25 1 and 252 are angular columnar brushes. 11 315185 1229487 The contact surface w of the brushes 251 and 252 with the commutator 23 is the side length * 〇 Lai: square. Brushes ⑸, 252 For example, graphite as the main component of the stone = brush holder | set 26 also——corresponds to the brush 251, plus, and is fixed—the two brush holders 261 corresponding to the brushes 25 and 252 are used in the application form, . This brush holder is installed: hair = two components. Each brush holder 261 has the same shape as each other. Brush holder: Duya is made of the same material. In particular, as shown in FIG. 5, each of the two springs 61 and 262 has a plate spring portion 27 and a terminal portion 28, and the plate spring portions 27 and the terminal Qiu Zongshan and the Sicheng brush Pauladu are bent by a plate. It is formed integrally. The sheet of structure #tin extension, 261, 262 is formed by bending the above sheet with a thickness of G.5mm, for example. The holder 261 is formed by bending the above sheet, and the brush is also formed by another sheet of the same material. Each of the brush holders 2 61 and? T is dried, and the σ plate spring portion 27 is as shown in FIG. 5. The two flat plate portions 27 a and 27 b of the thousand 仃 and the flat plate portions 27 a and 27 h of the temple are attached to the mountain. Han Ni ... a slanting connecting portion 27c. The plate portions 27a, 27b and the surname Qiu 97 +, / c are the above-mentioned thousand β poles ^ and the feet are integrally formed from the same material, such as the above-mentioned copper plate. The flat plate portion 27a is connected to the inner surface 11a of the first body 11 and is provided with the electric plate ^, and the electric holding plate 27b is disposed opposite to the contact surface 24 of the commutator 23. Then, is the AA and the plate portion 27b mainly ejected to the contact surface 24 of the commutator 23 by the elastic force of the joint. I ... ~ A square # 刷 伴 holding hole ⑽ is formed in the center of the flat plate portion M on the lower side. This positive brush holding hole 2 is formed with two opposite sides of the brush holding hole 315185 12 1229487. There is a pair of opposing brush holding pieces 27e, and the other pair of opposing brushes 佯 Η and σ are formed on the sides. Above the portion 27b: 1Γ. The pair of brush holding pieces 27e are directed downward to the flat m ... The brush holding pieces 27 "brush brush No. 251 which is directed to the flat portion 2 and the brush holding hole 2 are made to be able to be pulled into the angular columnar 52 to be held, and As shown in Fig. 5, Ping 2 inserts the angular columnar brush 251 into the brush holding hole 27d and inserts it into two.-The rectangular column-shaped brushes 251 and 252 have two pairs of opposite outer faces 25b and d. The brush holding piece 27e abuts on the rectangular brushes 251, = the opposite-to the outside 25b, and the other-to the brush holding piece 27f, the brushes 251, 25 are like M and sub faces 25C, The brush holding pieces 7e, 2 7f hold the brushes 251, 252 firmly. A The flat plate portions 27b on the lower sides of the brush holders 261, 262 are held by the brushes by the elastic force of the association unit 27c. The brushes 251 and ⑸ of the holding hole ^ are pressed against the contact surface 24 of the commutator 23. The brush 25i is worn due to sliding friction with the stator 23. When the brush 251 and the wear are added, it is subject to connection The elastic force of the portion 27c automatically moves in a direction substantially parallel to the rotation axis 13 toward the contact surface 24 of the commutator + 23, so the brushes 25 and 252 can be pressed on the commutator 23 all the time. The contact surface 24. In other words, the brushes 251, 252 can be moved to compensate for the wear as they wear, and can be always pressed on the contact surface 24 of the commutator 23. The terminal portions of the brush holders 261, 262 28 'is bent from one end of the flat plate portion 27 & of the plate spring portion 27 and is integrally formed with the plate spring portion 27. Each terminal portion 28 has a terminal plate 28 & and a connecting portion 28b. This terminal plate 28a and the connection The portion 28b is also integrally formed. The connecting portion 28b is bent from the end of the flat plate portion 27a of the leaf spring portion 27 perpendicular to 315185 13! 229487. The terminal plate 28a is formed by bending the angle θ from the connecting portion. The flat plate 4 27a The other end is formed with a bend Wg parallel to the connection portion 28b. This bend portion 27g is parallel to the connection portion 28b. As shown in FIG. 3, the first case (brush holder Shell Chuan and Rectifier II) The opposite inner surface is formed with two angular columnar protrusions η: Two: :: Daqi UC, Ud are formed symmetrically with respect to the axis of the rotation axis 13 L is a member 261 to be held on the protrusion-and a brush holder 262 I * # 大 起 ⑴ 上. Specifically, each of the brush holders 261 and 62 is a protrusion ll c, 夂 tired between the bends W and ㈣: companion = opposite connecting part ⑽ and the inner surface of the shell Ua. "of the it body (brush holder beans each brush holder 261, 262 series; Lian, .. The coffee and the bent portion M are held on the protrusions Uc and lld by holding the protrusions 1C and Ud from both sides. For example, two, three, and four gangs-formed with two elongated shells (Brush holder shell
Ue、llf在第一 ± ，的貫通孔Ue、llf。該等貫通孔 在弟一喊體(電刷保持件殼)η之内面lla盘外面 之間貝通第-殼體（電刷保持件殼）u。貫通孔 =ΓΓ轴13之轴線在平行於該轴線之共通的平面上 並排配置。各電刷保 、、日7十¢7上 該等貫通孔lie、Uf而 、之各端子板28a為貫通 的外部。 犬出於第一殼體（電刷保持件殼）11 外部=:二第5:*:體(電刷 的狀態，但外部連接部成上述外部連接部28c “ c為如弟6圖所示大致形成u字 315185 】4 1229487 形，對於外部連接部28c連接直流電源（未圖 電引線及負側供電引線，並視需要與以焊接。外部連Γ部 28c之從電刷保持件殼丨丨突出 J而于扳28的上半部依第5 圖所示虛線2 8 d彎成大致為u字开彡。兮从★ 子形。该外部連接部28c之 U字形的開放端28e為向電刷 τ 双u之外面11 b開姑 地彎曲。上述彎成！；字形之外 逐接4 2 8 c因彎曲成u字 形而得以增加其強度，在盥直汽 取子 你/、直机電源之正側供雷 側供電引線連接時亦不變形或折損。 f 、 如第6圖所示，大致^字形之冰 y 之外°卩連接部2 8 c之U丰 形開放端28e因向電刷保持件殼u A m 〇_ w a <外面1 1 b開放地彎 曲，因此外部連接部28c的寬度w 寬度W相同，並可與第4圖所 ^、端子板施的 ^相同。第7圖之外部連接部28f ^孔字之寬度 向電刷保持件殼η之外面llb擴張;放端28e則 此右V赴收4 L張的方向開放地彎曲。於 匕有必要將外部連接部28f之戶 又^成比端子板28a的寬 又W、.々為兩倍的寬度而將其 之宫疮λχ/ +各 子形，貫通孔lie、11| 之見度W亦有必要形成較大 \ 28〇 ^ ^ ^ 丁的於弟6圖所示外部連 黃丨28c之寬度w可形成較小。 由於貫通孔lie、llf均形成在同一 此兩個電刷^ 面上的位置，因 w电刷保持件261、262之外 面的位署 ^ τ上 1建接邛28c均在相同平 位置。该平面為離開旋轉車由u 平行之平面，+楚。@ 叨一靛轉軸U之軸線 炙十面，如第2圖所示位在燃 側。由枱姑4丄μ ιτ主出官1 7之緊接外 由％轉軸1 3的軸線方向看時該 在電刷μι κ X寺外邛連接部28c為位 51、252之與整流子23的接 得觸面24接觸之圓周的 315185 】5 1229487 内周側。 因欲儘量增大電刷251、252與整流子23的接觸面積， 因此電刷251、252在整流子23的接觸面24上滑動的圓周 儘量設在整流子23之靠外周側。外部連接部28c位在該圓 周之較内周側，亦即配置在較接近旋轉軸13之軸線的1 置。上述外部連接部28c之配置使得互相束綁的正側供電 引線及負側供電引線從其分支處容易將供電引線的端子連 接在各端子部28。正側供電引線及負側供電引線為束綁 共通的供電電纜，然後從該電纜互相分開而連接於電刷保· 持件2 6 1、2 6 2之各外部連接部2 8 c。 ’' 小 甩明你付仵26 1、262之端子搞 2 8 a間的角度<9 1為1 8 〇度。相對 , 件26卜262之各板彈翌部〜千匕，保持在兩電刷保持 弹只邛27之電刷25卜252間的角产a 2為90度。該等角度θ]、a，在 2為紅轉軸1 3之軸心周圍的 角度。角度Θ1、02之+ 之差為由知子板28a與連接 之彎曲角度Θ而定。 受。丨28b間 泵30含有磁車尼1〇，坌一 | 二殼部㈣m之㈣(㈣Wh。/ ⑶。該等滑接面12/Γ^Γ 一對滑接面12a、 直的平面上且以門均形成於與旋轉軸13之軸線垂 十由上且間隔 之間，葉輪3丨脱罢^ 在”亥寺π接面12a、 ^ 置成可與滑接面1 2a、1 2b滑動拄觸 茱輪31為固定在旋韓 μ動接觸。 轴13一起旋轉。轴13,於旋轉軸13受驅動時與旋轉 於葉輪3 1之外周部形 成有環狀的泵室 33，泵室33亦 315185 16 1229487 14磁輛1 〇内之孩閉空間1 6連通，從燃料吸入管1 8吸入之 燃料係供給至該密閉空間16，然後通過直流電動機2〇内 部之轉子22與場磁鐵21間的空隙而供給至整流子23與電 刷裝置25之接觸部分，再由燃料吐出管17供給至引擎。 整流子23與電刷裝置25之接觸部分為浸潰於充滿在 磁輛1〇内部的液體燃料中。電刷裝置25即在該液體燃料 中與整流子23接觸。 如上所述，第—實施形態之直流電動機20之電刷保持 件261、262具有板彈簧部27與端子部28,該等板彈菁部 27與端子部28因由板材-體形成，可省去習用之直流電 動機使用之豬尾引線。又由於板彈簧部27保持電刷⑸、 =2,並使電刷251、252以大致與旋轉軸13平行的方向按 :於整流子23的接觸面24’因此可省略於習用之直流電 機使用之特別的線圈狀之電刷彈簧。又由於板彈箬部η =補償電刷251、252的磨耗的方式使電刷25 1 :252隨 者磨耗而向整流子2 3 I〜 子3的接觸面24移動’因此可省略於習, 缺電動機使用之特別的電刷保持筒。由於省略上述· 緒尾、線圈狀電刷彈簧及特’略上过 刷保持件261、262小型化，又由= 八 匕又由於電刷保持件261、262 刀由芎曲板材一體形成，可藉由減少跫# * 接合誤差引起之尺…令件數而改善零件 因此可達成電刷保持件之尺寸 女疋化。因而使直流電動機更小型化 動機的尺寸精度。 乂及^直流電 又藉由減少電刷保持件261、262之零件數，可將電刷 315185 17 1229487 保持件261、262形成為更簡單的構造。上述簡單構造之電 刷保持件26 1、262能減少因燃料流通其間引起的振動，而 能抑制電刷251、252的振動，因此電刷251、252與整流 子23的接觸更圓滑，使電刷對整流子23的供電更穩定。Ue, llf are the first through holes Ue, llf. The through-holes are formed between the inner surface of the shouting body (brush holder housing) η and the outer surface of the disk 11a, and the shell-brush holder (brush holder housing) u. Through-hole = The axis of the ΓΓ axis 13 is arranged side by side on a common plane parallel to the axis. Each brush guarantees that the through holes lie and Uf are formed on the through holes 7 and 7 and each terminal plate 28a is a through outer portion. The dog is out of the first housing (brush holder housing) 11 outer =: second fifth: *: body (brush state, but the external connection portion becomes the above external connection portion 28c "c is as shown in Figure 6) It is approximately U-shaped 315185] 4 1229487, for external connection 28c to connect a DC power supply (not shown electrical lead and negative-side power supply lead, and soldered as needed. External connection 28c from the brush holder housing 丨 丨Protrude J and the upper half of the lever 28 is bent into a substantially U-shaped slit according to the dotted line 2 8 d shown in FIG. 5. It is from a ★ sub shape. The U-shaped open end 28 e of the external connection portion 28 c is an electric current. Brush τ double u and the outer surface 11 b is bent openly. The above bends are made !; the outside of the shape is connected 4 2 8 c because it is bent into a U shape to increase its strength. The positive-side mine-side power supply lead is also not deformed or broken when connected. F. As shown in Figure 6, the U-shaped open end 28e of the connection portion 2 8 c is due to the electrical connection. The brush holder housing u A m 〇_ wa < outer surface 1 1 b is bent openly, so the width w width W of the external connection portion 28 c is the same as that shown in FIG. 4. ^ The same as applied to the terminal plate. The external connection portion 28f in Figure 7 ^ The width of the hole is expanded to the outer surface llb of the brush holder shell η; when the end 28e is put, the right V goes to the direction of receiving 4 L sheets. It is necessary to bend the external connection portion 28f to be wider than the terminal plate 28a, and the width is twice as wide as the terminal plate 28a, so that its ulcers λχ / + are shaped, and the through holes lie, 11 The visibility W also needs to be larger \ 28〇 ^ ^ ^ The width w of the outer link huang 28c shown in Ding's 6 can be smaller. Because the through holes lie and llf are formed in the same two The positions on the surfaces of the brushes ^, because of the position on the outer surface of the brush holders 261 and 262, ^ τ1 on the 邛 28c are in the same flat position. This plane is the plane parallel to u from the rotating car, +楚. @ 叨 一 ▽ Rotating axis U's axis is ten-sided, as shown in Figure 2. It is located on the burning side. It is viewed by the Taigu 4 丄 μιτ main officer 17 immediately outside and viewed from the axis direction of the% rotating axis 13 At this time, the brush connection section 28c of the outer temple of the temple μm κ X is 315185 of the circumference of the positions 51 and 252 which are in contact with the contact surface 24 of the commutator 23】 5 1229487 inner peripheral side. The contact area of the brushes 251, 252 and the commutator 23 is large, so the circumference of the brushes 251, 252 sliding on the contact surface 24 of the commutator 23 is set as far as possible on the outer peripheral side of the commutator 23. The external connection portion 28c is located at this The circumference is closer to the inner circumference side, that is, it is arranged closer to the axis of the rotation axis 13. The configuration of the above-mentioned external connection portion 28c makes it easy for the positive-side power supply lead and the negative-side power supply lead bundled with each other to easily supply power from their branches. The terminal of the lead is connected to each terminal portion 28. The positive-side power supply lead and the negative-side power supply lead are bundled common power supply cables, which are then separated from each other and connected to the external connection portions 2 8 c of the brush holders 2 6 and 2 6 2. ‘'Xiao Shaoming you pay 仵 26 1, 262 terminals to engage the angle between 2 8 a < 9 1 is 180 degrees. On the other hand, the angle of a 2 between the blade springs of pieces 26, 262 and 1000, held between the two brush holders, 27, and 25, 252 of the brushes is 90 degrees. These angles θ] and a are the angles around the axis of the red rotation axis 13 at 2. The difference between the angles Θ1 and 02+ is determined by the bending angle Θ of the daughter board 28a and the connection. Subject. The pump 30 between 28b and 28b contains a magnetic vehicle 10, 坌 1 | 壳 m of the two shells (㈣Wh. / ⑶. These sliding contact surfaces 12 / Γ ^ Γ, a pair of sliding contact surfaces 12a, on a straight plane and with The doors are formed between the upper and lower sides of the axis of the rotating shaft 13, and the impeller 3 丨 is removed ^ It is placed in the "Hsi Temple π junctions 12a, ^ so as to be in sliding contact with the sliding joints 1 2a, 1 2b The jujube 31 is fixed in rotation with the μ. The shaft 13 rotates together. When the rotation shaft 13 is driven, the annular pump chamber 33 is formed on the outer periphery of the impeller 31 and the pump chamber 33 is also 315185. 16 1229487 14 The closed space 16 within the magnetic vehicle 10 communicates, and the fuel sucked from the fuel suction pipe 18 is supplied to the closed space 16 and then passes through the gap between the rotor 22 and the field magnet 21 inside the DC motor 20 The contact portion of the commutator 23 and the brush device 25 is supplied to the engine through the fuel discharge pipe 17. The contact portion of the commutator 23 and the brush device 25 is a liquid fuel immersed in the magnetic vehicle 10. The brush device 25 is in contact with the commutator 23 in the liquid fuel. As described above, the DC power of the first embodiment The brush holders 261 and 262 of the machine 20 have a plate spring portion 27 and a terminal portion 28. Since the plate spring portions 27 and the terminal portion 28 are formed of a plate body, pig tail leads used in conventional DC motors can be omitted. Since the plate spring portion 27 holds the brush ⑸, = 2, and presses the brushes 251, 252 in a direction substantially parallel to the rotation axis 13: on the contact surface 24 'of the commutator 23, it can be omitted from the conventional DC motor. The special coil-shaped brush spring. The brush spring η = compensates for the wear of the brushes 251 and 252, so that the brush 25 1: 252 wears to the commutator 2 3 I ~ sub 3 The surface 24 is moved, so it can be omitted from the conventional brush holders that are not used by electric motors. Because the above-mentioned suffix, coil-shaped brush springs, and special brush holders 261 and 262 are reduced in size, = Because the brush holders 261 and 262 are integrally formed by the curved plate, the number of pieces can be reduced by reducing the size of the 跫 # * joining error ... the number of pieces can be improved, so the size of the brush holder can be achieved. Dimensional accuracy of the DC motor is reduced By reducing the number of parts of the brush holders 261 and 262, the direct current can make the brush holders 315185 17 1229487 holders 261 and 262 a simpler structure. The brush holders 26 of the simple structure described above 1 and 262 It can reduce the vibration caused by the fuel flow, and can suppress the vibration of the brushes 251, 252. Therefore, the contact between the brushes 251, 252 and the commutator 23 is smoother, and the power supply of the brush to the commutator 23 is more stable.
特別因第一實施形態之直流電動機20之板彈簧部27 為由板材彎曲形成，因此能將習用之線圈狀電刷彈簧所佔 的長度空間大幅縮小’使得軸方向尺寸縮小，而可更加輕 量化。 I 又依第一實施形態之直流電動機20，其整流子23的 接觸面24位於與旋轉軸1 3大致垂直的平面，電刷25 i、 2 5 2以大致與旋轉軸1 3平行的方向按壓，因此如整流子的 接觸面為構成於旋轉軸13之同心圓周上，於轉子22之組 裝作業時不需要將電刷向外周按壓之工序，使得轉子22 的組裝作業容易進行。 又依第一實施形態之直流電動機2〇，由於電刷25 !、 252保持在板彈簧部27之平板部2几，因此能利用平板部2 27b將屯刷25 1、252簡易地保持，又可將平板部27b之特 別是軸方向尺寸縮小，故可達成直流電動機及燃料泵的軸 方向尺寸。 又依第一實施形態，由於端子部28為於比電刷25 1、 252與整流子23接觸的部分更接近旋轉軸的位置互相靠近 而配置，因此正側供電引線與負側供電引線要從互相束綁 、P刀刀開而進行連接時，能夠很容易地將該等供電引線 的立而子連接於各端子部2 8。 315185 18 1229487 又依第-實施形態之直流電動機2〇，由於端子部μ 件殼u突出，並在電刷保持件殼的外部設置 二二u:的外部連接部28c，因此即使以板材形成端 二=:增加外部連接部28c之強度，與供電引線連 接^了改„外部連接部變形、折損的問題。 又：第-實施形態之直流電動機2〇,由於板彈菩部η 為由相向之平板部27a、2几及 士 成，並將平板部… 冑結部27c構 結部-對平板部27::持件殼U’因此可由連丨 卞販。卩2 7 b施加必要的彈力。 —端設置端子部28,在卜端設置 二子。”8相向㈣折部27g，並使 ;Μ兩側挟持設在電刷保持件殼u的内面u;之突： c lid’因此將電刷保持件261、如從 咖 11c、lid即可簡單地加以保持。 D甲入突起 又依第—實施形態之直流電動機2〇 251、252保持於平板部2 ，由方、將電刷 力而簡單地將電刷251 2…猎由連結部27c之彈j 上。 “]251、252按壓於整…3的接觸面2, 又依第-實施形態之直流電動機2〇，由於 電刷保持件261及第二電刷保 ^之 為離開旋轉轴13之軸線而並列配置 :… 的同-平面上，因此各電刷保持件261:;^ 成簡單的-列配置，又由於避開電刷保持件二=能構 配置電刷保持件 、牛成11的中心而 262的端子部28，因此可於電刷保 315185 19 1229487 夺件八又11的中心配置燃料吐出管1 7。 外，更又:第各=持：261、262的端子部28呈一列配置 第一電刷251、251以180度以下，具體 為9〇度之間隔配置在旋轉軸13的周圍，因此電刷 251、252能適當地配置於適於供電給轉子線圈的角度位 置。 又依第—實施形態之燃料系，由於省略習用 =使用的豬尾引線、線圈狀彈簧線圈、及特別的電刷^ 夺同’因此能使電刷保持# 261、262小型化， =刷保持件的零件數1改善因零件的接合誤差引起^ 流：動ί-Γ而達成電刷保持件尺寸的安定化。由此使直 進 σ小型化，以及提高直流電動機的尺寸精度， 進而使使用該直流電動機的燃㈣更 燃料泵的尺寸精度。 ^及k间 又依第一實施形態之燃料泵，由於在第一 心部設置燃料吐出管17，因此 的中 空間16之燃料不發生亂流軛:〇的内部· 吐出管17“ …也-中-向位於中心部之燃料 且不淪磁軛1〇以何種角度安裝，位於第一 1的中心部之燃料吐出管17都位於第-殼體"的中 善其通用性。的種類而更換第-殼體"，可改 ^在第-實施形態中，電刷裝置25可為包含兩對以上 刷之構成’例如可為包含_，亦即包含四個 之構成。使用兩對電刷時，將與第i至5圖所示之一 315185 20 1229487 2及一對電刷保持 電刷及一對電刷徂杜 ^件261、262相同之一對 电刷保持件配置在以旋轉 之對稱的位置上。此0一 疋轉軸13之軸線為中心 料吐出管17，姆電刷保持件殼11的中心部配置燃 刷及電刷保持件。17的兩側則配置合計兩對之電 μ又在第貫施形態中，各電刷保持件261、262的γ子 部28為並列於同— 的鳊子 之义、+、亚；士 ，且第6圖所示之各端子部28 ㈣平面方向的寬度w係形成互相相 各端子部Μ之前沭伞& +人 1幻配置之 同,,01 θ 十面方向的寬度W亦可形成互不相 供電引線或是負側ρ ϋ ’付σ /、上應連接正側 的連接能夠容易地進行。 /、電引線 第二實施形態 弟7圖顯示本發明 、六 型態的-部分。此第燃料果之第二實施 之直d電動機 ”·、貝不第二貫施形態之燃料泵100 广電動機20’特別是其電刷保持件裝置26之 ::寺件的端子部281。此端子部281與第一實施形態：:） 'η同樣具有端子板W及連結部m，連結部2二 如弟5圖：：由㈣菁部”上側的平板部％彎曲形成： -以㈣、之端子部281相當於例 示之電刷保持件262之端子部-具有在電刷保：件: 的外Μ曲成U字形的外部連接部28f。該外部連接部^ 之U子形開放端28e係彎曲成向電刷保持件殼1“ 】】b擴張的方向開放。 面 315185 21 1229487 為了使端子部281的板彈簧部27具有必要的彈力，於 決定構成電刷保持件之板材的厚度時，端子部28ι可㈣ 板材彎曲成U字形而形成具有充分的厚度之外部連接/ 撕。該外部連接部28f可形成為具有板材之厚度的兩倍以 上厚度之外部連接部28f，而可將供電引線有效地連接至 =有充分厚度之外部連接部28fe又藉由將外部連接部加 彎曲成U字形，可增加外部連接部撕的機械強度。 第三實施形態 &第8圖顯示本發明之直流電動機及燃料泵之第三實施 型態的-部分。此第8圖顯示第三實施形態之燃料泵：〇〇 之直流電動機20 ’特別是其電刷保持件裝置“之一電刷 保持件的端子部282。本第三實施形態之端子部M2具有 在電刷保持件殼n的外部彎曲成㈣形之外部連接部、 加。此外部連接部加㈠字形開放端W係與第了圖所 不之外部連接部28f-樣彎曲成向電刷保持件殼u的外面 11 b擴張的方向開放。 本第三實施形態之端子部282在彎曲成U字形的彎折（ 部28g處具有矩形狀的貫通孔28h。供電引線的端子係嵌 入固定於該貫通孔28h中’且可視需要予以焊接。利用該 貫通孔28h可將供電引線簡單且穩固地固定 28f 〇 第四實施形態 ^第9圖顯不本發明之直流電動機及燃料泵之第四實施 型恶的-部分。此第9圖顯示第四實施形態之燃料泵⑽ 315185 22 1229487 之直流電動機20’特別是其電刷保持件裝置^之 保持件的端子部283。太繁— 本弟四貫施形態之端子部283呈 在電刷料件殼11的外”曲成w形之外料接部 2 8 f 〇 本第四實施形態之端子部283在彎曲成u字形 部28g處具有矩形狀的凸部28j。供電引線的端子係嵌入 固定於該凸部28j上’且可視需要予以焊接。藉由該凸部 — 將供電引線簡單且穩固地固定於外部連接部28fd 弟五實施形態 （ 第1〇圖顯示本發明之直流電動機及燃料泉之第五者 轭型怨的一部分。此第1〇圖顯示第五實施形態之燃料泵 100之直流電動機20,特別是其電刷保持件裝置26之一電 :保持件263。此電刷保持件263保持於第_殼體（電㈣ 持件殼m，用以保持電刷25卜電刷保持件263且有第一 ，持部m、第二支持部272、及形成於該兩者間之板彈夢 π 273,又在第-支持部271的上端具有貫通第—殼體（電( 刷保持件殼）11之端子部28。該等 i 势 了又讨271、272、板彈 I部273及端子部28全由一板材’例如前述銅板彎曲而一 體形成。 +第-、第二支持部271、272係互相相向，並於與直流 电動機20的旋轉軸13大致平行的方向延伸1一支持部 27丨的上端係嵌入第一殼體（電刷保持件殼）u的内面na 而固定於第-殼體(電刷保持件殼)u。第二支持部Μ的 上端係經彎曲而固定於第一殼體(電刷保持件殼…的内面 315185 23 1229487 1 la。 ^0 273具有與電刷保持件殼n的内面"a大致 27 2部Μ、及延續自平板部27h的兩端之彎折部 了η。彎折部27m、27n的上端係從平板部W彎折 大致直角’而在平板部27h的下側形成電刷保持用的凹部 2丫角柱形的電刷251的上端部係壓入凹部27』而保持於 凹叫彎折部27m、27n在第一、第二支持部271、272 的各下端具有連續的傾斜部27p，電刷251即藉由此傾斜 部27p的彈力而按壓在整流子23的接觸面μ上。當電刷 ⑸磨耗時’藉由傾斜部27p的彈力，電刷251可自田動向 整流子=移動，故電刷251可—直按壓在整流子23上。 …依第五實施形態，由於保持電刷251之板彈簧部273 係藉由自其兩端延續之兩個支持部271、272而固定於電刷 保持件殼11，因此可更穩固地固定板彈簧部π，而提高 電刷保持機能。 第六實施形態 第11圖顯示本發明之直流電動機 杏 施型態的-部分。此…顯示第六實施=上； 100之直流電動機20,特別是其電刷保持件裝置26之一電 刷保持件264。此電刷保持件264與第1〇圖所示之電刷保 持件263 —樣’板彈簧部273的兩端具有第一、第二支持 部27卜272。本第六實施形態+，支持部272係藉由插入 (insert)成形或壓入等方式嵌入電刷保持件殼丨丨的内面 而固定。 315185 24 1229487 本第六實施形態中，支持部271、272各包含有以前述 銅板構成之板材灣成波形之彈簧部27q。此彈箬部2?q產 生相加於傾斜部27p的彈力之彈力，，亦即能以傾斜部％ 及彈簧部27q之總和的更大彈力將電刷25ι按壓在整流子 23的接觸面24上。 & 第12圖顯示本發明之直流電動機及燃料泵之第七實 把里#刀。此第i 2圖顯示第七實施形態之燃料果， 100之直流電動機20,特別是其電刷保持件裝置26之兩個 電刷保持件265、266。電刷保持件265、266各具有板彈 黃部27及端子部28，各由一 的板材彎曲而形成。 片板材’例如前述銅板構成 板弹*部27具有兩個平板部27r、2乃、及連繫兩平 板部27r、27s之傾斜部27t， 匕專千板4 27r、27s、傾斜 二、及自平板部π延續而成的端子部28皆由一片板 材芩曲而一體形成。平柘 27u。角柱狀的千 °卩27r的下面設有電刷挾持部」 部27u而㈣^ 251 _入電刷保持件265之電刷挟持1 二=於其中，角柱狀的電刷252係厂堅入電刷保持 係_由各μ Γ持部27u而保持於其中。該電刷251、252 二 == 持件265、266的傾斜…彈力而按屡 正抓子23的接觸面24上。 電刷251、252在以旋轉車由13 周上相間隔〜的角度而配第？::二同-圓 電刷保持件265、266的 弟= 攸5早η邛27亦配置成以旋轉軸 315185 25 1229487 13的轴線為中心，相互間間隔9G度而於徑向延伸。電刷 保持件265、266之各端子部28係配置在互相平行的平面 之 上。該平面為離開旋轉軸13而與旋轉軸13的 平面。 &本第七實施形態之電刷保持件265、266與第一實施型 悲的電刷保持件261、262相比，其彎曲構造較簡單，可容 低成本地構成。有雖然各電刷保持件的板彈菩部2 7 間的角度間隔為90度’但可視需要而容易地變更，並 子部28可在電刷251、252之接觸的圓周内充分靠近旋轉暴 軸1 3的軸線而配置。 、又第七實施形態之傾斜部27t係以旋轉軸13的軸線為 中。而於偟向延伸，能以單純的形狀對電刷25卜252充分 的彈力。電刷25 1、252即使有磨損亦可一直按壓在整流子 23的接觸面24上。該電刷251、255的接觸位置在旋轉軸 13的半徑方向會略為變化，但在該旋轉轴13的周方向的 接觸位置則不會變化’因此能確實進行對整流子23的供 電。 (產業上的可利用性） 本發明之直流電動機可應用於供給引擎的燃料之燃料 泵，而燃料泵則可附屬於引擎，用於例如汽車上。 【圖式簡單說明】 第1圖係顯示本發明之直流電動機及燃料泵的第一實 施形態之縱剖視圖。 ' 第2圖係第1圖之俯視圖。 315185 26 1229487 弟3圖係第】圖之m_m線的剖視圖。 第4圖係第i圖之IV_IV線的剖視圖。 圖0 第5圖係第—實施形態中之電刷保持件裝置的透視 係顯示第一實施形態中之電刷 子部之透視圖。 仏且〜文而 弟7圖係顯示本 、、古 ^ ^ ^ Φ ^ ^ X月之直，瓜電動機及燃料泵的第二實 ㈣以的電刷保持件裝置之透_。 < :=系’項不本發明之直流電動機及燃料泵的第：實彳 她㈣中的電刷保持件裝置之透視圖。 弟—只 施二=顯示本發明之直流電動機及燃料泵的第四實 細形:%中的電刷保持件裝置之透視圖。 第10圖係顯示本發明之直流電動機及燃料泵的第五 實施㈣中的電刷保持㈣置之縱剖視圖。“ 弟11圖係顯示本發明之直流電動機及燃 實施《中的電刷保持件裝置之縱剖視圖。 弟12圖係顯示本發明之直流電動機及燃料泵的第七 實施形態中的電縣持件u之縱剖視圖。 10 磁軛 11 第一殼體（電刷保持件殼） 11a 内面 m 外面 11c 、 lid lie、Ilf 貫通孔 12 第二殼體（泵殼）12a、12b 滑接面 315185 27 1229487 13 旋轉軸 14 金屬軸承 15 金屬軸承 16 内部空間 17 燃料吐出管 18 燃料釋放閥 19 燃料吸入管 20 直流電動機 21 場磁鐵 22 轉子 23 整流子 23a 整流子片 24、 25a 接觸面 25 電刷裝置 25b 、25c 外面 26 電刷保持件裝置 27 板彈簧部 27a、27b 平板部 27c 連結部 27d 電刷保持孔 27e 、27f 電刷保持片 27g 、 28g 彎折部 27h 平板部 2 7j 凹部 27m 、27n彎折部 27p 傾斜部 27q 彈簧部 27r 、 27s 平板部 27t 傾斜部 27u 電刷挾持部 28 端子部 28a 端子板 28b 連結部 28c 、 28f 外部連接部 28d 虛線 28e 開放端 28h 貫通孔 28j 凸部 30 泵 31 葉輪 33 泵室 100 燃料泵 251 > 252 電刷 261至266電刷保持件 271 、272 支持部 273 板彈簧部 281至283端子部 28 315185In particular, since the plate spring portion 27 of the DC motor 20 of the first embodiment is formed by bending a plate material, the length space occupied by a conventional coiled brush spring can be greatly reduced, thereby reducing the size in the axial direction and reducing the weight. . I According to the DC motor 20 of the first embodiment, the contact surface 24 of the commutator 23 is located on a plane substantially perpendicular to the rotation axis 13, and the brushes 25i and 2 5 2 are pressed in a direction substantially parallel to the rotation axis 13 Therefore, if the contact surface of the commutator is formed on the concentric circumference of the rotating shaft 13, the process of pressing the brush to the outer periphery is not required during the assembly operation of the rotor 22, so that the assembly operation of the rotor 22 is easy. According to the DC motor 20 of the first embodiment, since the brushes 25! And 252 are held by the flat plate portion 2 of the plate spring portion 27, the flat plate portion 2 27b can be used to easily hold the brushes 25 1 and 252. Since the dimensions of the flat plate portion 27b, especially in the axial direction, can be reduced, the axial dimensions of the DC motor and the fuel pump can be achieved. According to the first embodiment, since the terminal portions 28 are arranged closer to each other than the portion where the brushes 25 1 and 252 are in contact with the commutator 23, the positive power supply lead and the negative power supply lead are separated from each other. When connected with each other and P-knife opened, it is possible to easily connect the standing wires of the power supply leads to the respective terminal portions 28. 315185 18 1229487 According to the DC motor 20 of the first embodiment, since the terminal part μ case u protrudes, and the external connection part 28c of u: is provided on the outside of the brush holder case, even if the end is formed of a plate Two =: Increase the strength of the external connection portion 28c, and connect it to the power supply lead ^ Improved the problem of deformation and damage of the external connection portion. Also: The DC motor 20 of the first embodiment, due to the opposite side of the plate spring η The flat plate portions 27a, 2 and 20 are formed, and the flat plate portion ... The knotting portion 27c constitutes a portion-the flat plate portion 27 :: holding case U 'can therefore be sold by a company. 卩 2 7 b Apply the necessary elastic force. -The terminal portion 28 is provided at the end, and the second child is provided at the end. "8 oppositely folded portions 27g, and the two sides of M are held on the inner surface u of the brush holder shell u; the protrusion: c lid ' The holding member 261, such as the coffee cup 11c, lid, can be simply held. D 甲 入 突 In accordance with the first embodiment, the DC motors 2025 and 252 are held on the flat plate portion 2, and the brushes 2512 are simply driven by the force of the brushes on the square j. "] 251, 252 are pressed against the contact surface 2 of the entire ... 3, and according to the DC motor 20 of the first embodiment, the brush holders 261 and the second brushes are arranged side by side to leave the axis of the rotary shaft 13. Configuration: on the same plane, so each brush holder 261 :; ^ is a simple -row configuration, and because the brush holder two is avoided = the center of the brush holder and Niucheng 11 can be configured The terminal section 28 of 262 can be arranged at the center of the brush holder 315185 19 1229487. The fuel discharge pipe 17 is arranged in the center of the eighth and 11th. In addition, the first and second: each: the terminal sections 28 of 261 and 262 are arranged in a row. The brushes 251 and 251 are arranged around the rotating shaft 13 at intervals of 180 degrees or less and specifically 90 degrees, so the brushes 251 and 252 can be appropriately arranged at an angular position suitable for supplying power to the rotor coil. —The fuel system of the embodiment, since the conventional = pigtail leads, coil spring coils, and special brushes are omitted ^ same, so the brush holder # 261, 262 can be miniaturized, = parts of the brush holder The number 1 improves due to the joining error of the parts. ^ Flow: moving Γ-Γ to achieve brush retention Dimensional stability. As a result, the straight-forward σ is miniaturized, and the dimensional accuracy of the DC motor is improved, and the dimensional accuracy of the fuel pump using the DC motor is further improved. The fuel pump according to the first embodiment is used between ^ and k. Because the fuel discharge pipe 17 is provided in the first core portion, the fuel in the middle space 16 does not have a turbulent yoke: The inside of the discharge pipe 17 "... also-middle-to the fuel located in the center and does not become a yoke At what angle 10 is installed, the fuel discharge pipes 17 located in the center of the first 1 are all located in the first-case "Zhongshan" for its versatility. In the first embodiment, the brush device 25 may be configured to include two or more pairs of brushes. For example, the brush device 25 may include _, that is, a configuration including four. When using two pairs of brushes, the same pair of brush holders as the one shown in figures i to 5 315185 20 1229487 2 and one pair of brush holding brushes and one pair of brush holders 261, 262 It is placed in a position symmetrical to rotation. The axis of the zero-one rotating shaft 13 is the center of the material discharge pipe 17, and the brush holder holder 11 is provided with a brush and a brush holder at the center of the brush holder housing 11. On both sides of 17, a total of two pairs of electric μ are arranged. In the first embodiment, the brush sub-sections 28 of the brush holders 261 and 262 are juxtaposition, +, and Asia; In addition, the width w in the plane direction of each terminal portion 28 shown in FIG. 6 is the same as that of the umbrella & + human 1 configuration before each terminal portion M is formed, and the width W in the direction of 01 θ in ten planes can also be formed. It is easy to perform the connection of the non-phase power supply leads or the negative side ρ ϋ ′ σ /, and the positive side. / 、 Electrical Leads Second Embodiment Fig. 7 shows the sixth part of the present invention. The second embodiment of the straight fuel motor of the second fuel ", the fuel pump 100 of the second embodiment, the wide motor 20 ', especially the brush holder device 26 thereof :: the terminal portion 281 of the temple. This The terminal portion 281 is the same as the first embodiment :) 'η also has a terminal plate W and a connecting portion m, and the connecting portion 2 is as shown in FIG. 5: It is formed by bending the flat plate portion on the upper side of the cyanine portion ":- The terminal portion 281 is equivalent to the terminal portion of the brush holder 262 as an example. The terminal portion 281 has an outer connecting portion 28f that is curved in a U-shape on the outer side of the brush holder. The U-shaped open end 28e of the external connection part ^ is bent to open in the direction in which the brush holder case 1 "] b expands. Surface 315185 21 1229487 In order to provide the plate spring portion 27 of the terminal portion 281 with the necessary elastic force, When determining the thickness of the plate material constituting the brush holder, the terminal portion 28m may be bent into a U-shape to form an external connection / tear with a sufficient thickness. The external connection portion 28f may be formed to have twice the thickness of the plate material The external connection portion 28f of the above thickness can effectively connect the power supply lead to the external connection portion 28fe with a sufficient thickness, and by bending the external connection portion into a U shape, the mechanical strength of the external connection portion can be increased. Third Embodiment & FIG. 8 shows a part of the third embodiment of the DC motor and fuel pump of the present invention. This FIG. 8 shows the fuel pump of the third embodiment: DC motor 20 ′, especially The brush holder device "a terminal portion 282 of the brush holder. The terminal portion M2 of the third embodiment has an external connection portion which is bent into a ㈣ shape on the outside of the brush holder case n. The outer connecting portion plus a chevron-shaped open end W is curved like the outer connecting portion 28f shown in the figure so as to open in a direction in which the outer surface 11b of the brush holder case u is expanded. The terminal portion 282 of this third embodiment is bent in a U-shape (the portion 28g has a rectangular through-hole 28h. The terminal of the power supply lead is embedded and fixed in the through-hole 28h and can be soldered if necessary. Use The through hole 28h can simply and stably fix the power supply lead 28f. The fourth embodiment ^ Figure 9 shows the evil-part of the fourth embodiment of the DC motor and fuel pump of the present invention. This 9th figure shows the fourth Fuel pump of the embodiment 315 185 22 1229487 of the DC motor 20 ', especially the terminal portion 283 of the holder of the brush holder device ^. Too complicated — The terminal portion 283 of this brother ’s four-permanent configuration is on the brush material The outer portion of the case 11 is bent into a w-shaped outer material connection portion 2 8 f 〇 The terminal portion 283 of the fourth embodiment has a rectangular convex portion 28j at a portion 28g bent in a U-shape. The terminal of the power supply lead is embedded and fixed The convex portion 28j can be welded as required. With the convex portion — the power supply lead is simply and firmly fixed to the external connection portion 28fd. The fifth embodiment (FIG. 10 shows the DC motor and the fuel spring of the present invention) Of Part of the five yoke-type grievances. This FIG. 10 shows the DC motor 20 of the fuel pump 100 of the fifth embodiment, particularly one of its brush holder 26. Electric: holder 263. This brush holder 263 It is held in the _th shell (electrical holder shell m) for holding the brush 25 and the brush holder 263 and has a first, holding part m, a second supporting part 272, and a plate formed therebetween. Bom dream π 273, and on the upper end of the first support portion 271 has a terminal portion 28 penetrating through the first case (electricity (brush holder case) 11). These i and 271, 272, and plate I 273 And the terminal portion 28 is all formed integrally from a sheet material such as the aforementioned copper plate. The first and second support portions 271 and 272 are opposite to each other and extend in a direction substantially parallel to the rotation axis 13 of the DC motor 20 to support each other. The upper end of the part 27 丨 is embedded in the inner surface na of the first case (brush holder case) u and is fixed to the first case (brush holder case) u. The upper end of the second support part M is fixed by bending To the inner surface of the first case (brush holder shell ... 315185 23 1229487 1 la. ^ 0 273 has an inner surface with the brush holder shell n " a Approximately 27 2M, and bent portions extending from both ends of the flat plate portion 27h. η. The upper ends of the bent portions 27m, 27n are bent from the flat plate portion W at a substantially right angle, and are below the flat plate portion 27h. A brush holding recess 2 is formed on the side. The upper end of the cylindrical brush 251 is pressed into the recess 27 ″ and is held at each of the lower ends of the first and second support portions 271 and 272. With the continuous inclined portion 27p, the brush 251 is pressed against the contact surface μ of the commutator 23 by the elastic force of the inclined portion 27p. When the brushes are worn out ’By the elastic force of the inclined portion 27p, the brushes 251 can move from the field to the commutator = moving, so the brushes 251 can be pressed directly on the commutator 23. ... According to the fifth embodiment, since the plate spring portion 273 of the holding brush 251 is fixed to the brush holder case 11 by two supporting portions 271 and 272 extending from both ends thereof, the plate can be fixed more stably The spring portion π improves the brush holding function. Sixth Embodiment Fig. 11 shows a part of a DC motor application mode of the present invention. This ... shows the sixth embodiment = up; 100 of the DC motor 20, particularly one of the brush holders 264 of the brush holder device 26 thereof. The brush holder 264 and the brush holder 263 shown in Fig. 10-like 'plate spring portions 273 have first and second support portions 27 and 272 at both ends. In the sixth embodiment +, the support portion 272 is fixed by being inserted into the inner surface of the brush holder case 丨 by insert molding or pressing. 315185 24 1229487 In the sixth embodiment, each of the support portions 271 and 272 includes a spring portion 27q having a wave shape of a plate formed of the aforementioned copper plate. This spring part 2? Q generates a spring force added to the spring force of the inclined part 27p, that is, the brush 25m can be pressed against the contact surface 24 of the commutator 23 with a larger spring force of the sum of the inclined part% and the spring part 27q. on. & Fig. 12 shows a seventh practical handle of the DC motor and fuel pump of the present invention. This figure i 2 shows a fuel cell of a seventh embodiment, a DC motor 20 of 100, and especially two brush holders 265, 266 of the brush holder device 26 thereof. The brush holders 265 and 266 each have a plate spring yellow portion 27 and a terminal portion 28, and each is formed by bending a single plate. The sheet material, for example, the above-mentioned copper plate constitutes a plate spring * portion 27 having two flat plate portions 27r, 2 and an inclined portion 27t connected to the two flat plate portions 27r, 27s, a dagger plate 4 27r, 27s, inclined two, and The terminal portions 28 continued from the flat plate portion π are all integrally formed by bending a single plate. Flat 柘 27u. Below the angled column is 1000 ° 卩 27r, there is a brush holding portion. The portion 27u and ㈣ 251 __ brush holding into the brush holder 265 1 2 = Among them, the angled column brush 252 is factory-installed brush holding System_ is held in each μ Γ holding portion 27u. The brushes 251, 252 == the inclination of the holders 265, 266. The elastic force is pressed on the contact surface 24 of the gripper 23. The brushes 251, 252 are arranged at an angle of ~ from the 13th circle of the rotating car? :: brother of two identical-circular brush holders 265, 266 = Yau 5 邛 邛 27 is also arranged so that the axis of rotation axis 315185 25 1229487 13 is the center, which extends at a distance of 9G from each other and extends radially. The terminal portions 28 of the brush holders 265 and 266 are arranged on planes parallel to each other. This plane is a plane away from the rotation axis 13 and is separated from the rotation axis 13. & The brush holders 265 and 266 of the seventh embodiment have a simpler curved structure than the brush holders 261 and 262 of the first embodiment, and can be constructed at a low cost. Although the angular interval between the blade parts 2 7 of each brush holder is 90 degrees, it can be easily changed as needed, and the sub-section 28 can be sufficiently close to the rotating storm within the circle where the brushes 251 and 252 are in contact. They are arranged along the axis of the shaft 1 3. Also, the inclined portion 27t of the seventh embodiment is centered on the axis of the rotation shaft 13. Extending in the normal direction, the brushes 25 and 252 can have sufficient elastic force in a simple shape. The brushes 25 1, 252 can be constantly pressed against the contact surface 24 of the commutator 23 even if they are worn. The contact positions of the brushes 251 and 255 slightly change in the radial direction of the rotary shaft 13, but the contact positions in the circumferential direction of the rotary shaft 13 do not change ', so that the power to the commutator 23 can be reliably supplied. (Industrial Applicability) The DC motor of the present invention can be applied to a fuel pump for supplying fuel to an engine, and the fuel pump can be attached to the engine and used in, for example, an automobile. [Brief description of the drawings] Fig. 1 is a longitudinal sectional view showing a first embodiment of a DC motor and a fuel pump according to the present invention. 'Figure 2 is a top view of Figure 1. 315185 26 1229487 Figure 3 is a sectional view of the m_m line. Fig. 4 is a cross-sectional view taken along line IV_IV in Fig. I. Fig. 0 and Fig. 5 are perspective views of the brush holder device in the first embodiment, and are perspective views showing brush sub-sections in the first embodiment. For example, the figure 7 shows this, ^ ^ ^ Φ ^ ^ Straight from the month, the second implementation of the brush holder device of the electric motor and fuel pump is transparent. <: = is a perspective view of the brush holder device in the DC motor and fuel pump according to the present invention. Brother-only two = showing the fourth embodiment of the DC motor and fuel pump of the present invention: the perspective view of the brush holder device in%. Fig. 10 is a longitudinal sectional view showing a brush holding arrangement in a fifth embodiment of a DC motor and a fuel pump according to the present invention. "Figure 11 shows a longitudinal cross-sectional view of the DC motor and the brush holder device of the present invention. Figure 12 shows a Dianxian holder in the seventh embodiment of the DC motor and fuel pump of the present invention. Vertical sectional view of u. 10 Magnetic yoke 11 First housing (brush holder housing) 11a Inner surface m Outer surface 11c, lid lie, Ilf through-hole 12 Second housing (pump housing) 12a, 12b Sliding contact surface 315185 27 1229487 13 Rotary shaft 14 Metal bearing 15 Metal bearing 16 Internal space 17 Fuel discharge pipe 18 Fuel release valve 19 Fuel suction pipe 20 DC motor 21 Field magnet 22 Rotor 23 Commutator 23a Commutator piece 24, 25a Contact surface 25 Brush device 25b, 25c outer surface 26 brush holder device 27 leaf spring portion 27a, 27b flat plate portion 27c connecting portion 27d brush holding hole 27e, 27f brush holding piece 27g, 28g bent portion 27h flat plate portion 2 7j recessed portion 27m, 27n bent portion 27p inclined portion 27q spring portion 27r, 27s flat portion 27t inclined portion 27u brush holding portion 28 terminal portion 28a terminal plate 28b connecting portion 28c, 28f Connection part 28d, dotted line 28e, open end 28h, through hole 28j, convex part 30, pump 31, impeller 33, pump chamber 100, fuel pump 251 > 252 brushes 261 to 266 brush holders 271, 272 support portions 273 plate spring portions 281 to 283 terminals Department 28 315185