200944679 九、發明說明： 【發明所屬之技術領域】 本發明有關於一種電磁閥，更有關於一種可減少材料使用並 增加使用壽命之流體電磁閥。 【先前技術】 如第1圖所示，在習用的電磁閥中，該電磁閥！有一薄膜組 件2以及一聯通孔3，以分別作為分隔電磁閥中之第一腔室4 (入 口部位)及第三腔室6 (出口部位)的結構以及連通第一腔室4及第 Q 一腔室5 (貯壓部位)的結構。電磁閥1對於經過之流體流量的控制 及開閉動作係由電磁線圈7 (solenoid)的柱塞8 (plunger)及閥柱型 的活基裝置9以不同的開度行程來完成。其中電磁閥在關閉狀態 時，流體由第一腔室4經聯通孔3進入第二腔室5進行貯壓；^ 電磁閥欲開啓時’電磁線圈7經通電產生電磁力將柱塞8上拉， 活塞裝置1始作動，流體由第—腔室4經過連結薄膜總成2之 活塞裝置9與支撐管1〇所構成之空間進入第三腔室6。 在如第1圖所示的習用電磁閥中，活塞裝置9的上半部與薄 膜組件^結合，且其下半部限制在支撐管1〇之中。當活塞裝置9 在支揮f 10進行滑動時亦同時牽動薄膜組件2。薄膜組件2的受 ΐΐΐ有來自於活塞裝置9的垂直推力，在電_開啟狀態時更 有&體經過時的水平干擾分力^因此，薄膜組件2常因與活塞裝 產生㈣域、力而崎，造成損壞及動作的失效。若 ίΪΪ Ϊ而增加薄膜組件2的厚度或另使用補強材料，除了增 加成本之外，亦可能降低電磁閥作動的靈敏度。 【發明内容] 伟用發明之目的為提供—種電磁閥’可減少材料的 使用並增加可靠度及使用壽命。 為達上述目的，依據本發明之一種電磁闕包括一主闊部，以 200944679 部主閥部由—般體所組成且其内部具有一突出部 於突出_部内設有一活塞滑設於支持部之中且套^ 電磁驅i邮右活ί與該突出部之間形成—間隙以供流體通過。 电磁驅動#具有—制動器延伸至殼體内，以推動該活夷 承上所述，本發明之一種電磁閥係以活塞與該 7 體通過，故可減少材料使用。與習知技術相I， 本發月不需使用賴組件即可達到同樣的效果，亦避 膜^牛容祕生的斷裂而造成電磁閥失效的問題。因此，本發明 具有較佳的可靠度及使用壽命。 部之流體貯壓腔室之底部為一斜面且雜流體入口處^較 【實施方式】 ® 請參照第2至4圖，其為依據本發明之一較佳實施例的電磁 閥20該電磁閥20具有主閥部21以及電磁驅動部22。該主閥部 21係為一殼體，由第一外殼211及第二外殼212所組成。該主閥 部21内具有突出部2111以及支持部2121。在本實施例中，該突 出部2111係位在該第一外殼211且該支持部2121係位在第二外 般 212。 主閥部21中具有一活塞213滑設於該支持部2121之中且套 設於突出部2111之中。該殼體可區分為第一腔室215、第二腔室 216、第三腔室217以及第四腔室218。第一腔室215係作為流體❹ 之入口。第二腔室216係與第一腔室215相連通，且與第三腔室 217之間以活塞213區隔。第三腔室217係作為流體貯壓之用，第 四腔室218係作為流體之出口。 . 電磁驅動部22具有一制動器221延伸至主閥部21之殼體中 以推動活塞213。該電磁驅動部22包括一線圈222用於驅動制動 器221。在本實施例中，制動器221係通過第一外殼211延伸至殼 體中。 該主閥部21包括一彈簧219抵接於第一外殼211以及活塞 6 200944679 213之間。制動器221係套接於該彈簧219之中。 以下敘述依據本發明較佳實施例之電磁閥2〇的作動方式。第 ^圖所示係為流體經電磁閥2〇播止之狀況。此時，流體從第一腔 室215流入第二腔室216，經由突出部2Π1及活塞213之間的^ 狀間隙214流入第三腔室217中，以維持與第一腔室215互為懕 力平衡的狀態。 此時，藉由流體充滿在第二腔室217所形成的壓力以及彈簧 219的彈力，活塞213可抵緊支持部2121，使得流體不會由二 腔室216流至第三腔室217。BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a solenoid valve, and more particularly to a fluid solenoid valve that reduces material usage and increases service life. [Prior Art] As shown in Fig. 1, in a conventional solenoid valve, the solenoid valve! a membrane module 2 and a communication hole 3 for respectively separating the first chamber 4 (inlet portion) and the third chamber 6 (outlet portion) of the solenoid valve and communicating the first chamber 4 and the Qth The structure of the chamber 5 (pressure storage portion). The control of the flow rate of the solenoid valve 1 and the opening and closing operation of the solenoid valve 1 are performed by the plunger 8 of the solenoid 7 and the valve-type movable base device 9 at different opening strokes. When the solenoid valve is in the closed state, the fluid enters the second chamber 5 from the first chamber 4 through the communication hole 3 for storage; ^ When the electromagnetic valve is to be opened, the electromagnetic coil 7 is energized to generate electromagnetic force to pull up the plunger 8 The piston device 1 is actuated, and the fluid enters the third chamber 6 from the space formed by the first chamber 4 through the piston device 9 and the support tube 1 of the connecting film assembly 2. In the conventional solenoid valve as shown in Fig. 1, the upper half of the piston device 9 is combined with the membrane module, and the lower half thereof is restrained in the support tube 1''. When the piston device 9 slides on the support f 10 , the film assembly 2 is also pulled at the same time. The film assembly 2 is subjected to the vertical thrust from the piston device 9, and in the electric-open state, there is a horizontal interference component when the body passes. Therefore, the film assembly 2 often generates (four) domains and forces due to the piston assembly. And Saki, causing damage and failure of the action. Increasing the thickness of the film unit 2 or using a reinforcing material in addition to the increase in cost may also reduce the sensitivity of the solenoid valve actuation. SUMMARY OF THE INVENTION The purpose of the invention is to provide a solenoid valve that reduces the use of materials and increases reliability and service life. In order to achieve the above object, an electromagnetic cymbal according to the present invention comprises a main wide portion, and the main valve portion of the 200944679 portion is composed of a general body and has a protruding portion therein, and a piston is slidably disposed in the support portion. In the middle of the set ^ electromagnetic drive i mail right ί and the protrusion formed a gap for the fluid to pass. The electromagnetic drive # has a brake extending into the housing to urge the piston. The solenoid valve of the present invention passes through the piston and the body 7, thereby reducing material usage. In contrast to the prior art, this month, the same effect can be achieved without using the Lai component, and the problem of failure of the solenoid valve caused by the breakage of the membrane. Therefore, the present invention has better reliability and service life. The bottom of the fluid storage chamber is a sloped surface and the fluid inlet is compared. [Embodiment] ® Please refer to Figures 2 to 4, which are solenoid valves 20 according to a preferred embodiment of the present invention. 20 has a main valve portion 21 and an electromagnetic drive portion 22. The main valve portion 21 is a casing composed of a first outer casing 211 and a second outer casing 212. The main valve portion 21 has a projection 2111 and a support portion 2121. In the present embodiment, the projection 2111 is tied to the first outer casing 211 and the support portion 2121. is tied to the second outer portion 212. The main valve portion 21 has a piston 213 slidably disposed in the support portion 2121 and disposed in the protruding portion 2111. The housing can be divided into a first chamber 215, a second chamber 216, a third chamber 217, and a fourth chamber 218. The first chamber 215 serves as an inlet for the fluid helium. The second chamber 216 is in communication with the first chamber 215 and is separated from the third chamber 217 by a piston 213. The third chamber 217 serves as a fluid reservoir and the fourth chamber 218 serves as an outlet for the fluid. The electromagnetic drive portion 22 has a stopper 221 that extends into the housing of the main valve portion 21 to push the piston 213. The electromagnetic drive unit 22 includes a coil 222 for driving the brake 221 . In the present embodiment, the brake 221 is extended into the casing through the first outer casing 211. The main valve portion 21 includes a spring 219 that abuts between the first outer casing 211 and the piston 6 200944679 213. The brake 221 is sleeved in the spring 219. The operation of the solenoid valve 2 according to the preferred embodiment of the present invention will now be described. The figure is shown in the figure where the fluid is stopped by the solenoid valve 2〇. At this time, the fluid flows from the first chamber 215 into the second chamber 216, and flows into the third chamber 217 via the gap 214 between the protrusion 2Π1 and the piston 213 to maintain the mutual 与 with the first chamber 215. The state of force balance. At this time, by the fluid filling the pressure formed in the second chamber 217 and the elastic force of the spring 219, the piston 213 can abut against the support portion 211 so that the fluid does not flow from the two chambers 216 to the third chamber 217.
> η第3圖所示為電磁閥2〇剛打開之狀況。在線圈222收到外部 汛號及電流產生磁力時，會驅動制動器221向上提起並壓縮彈簧 223。因為位於活塞213之通孔2131不再由致動器221所阻擋， ，流體可由第三腔室217經通孔2131流至第四腔室218，造成第 三腔室217的流體貯壓瞬間降低。此時，活塞213會開始朝向壓 力較低的方向(即第三腔室217)移動。 、第4圖所示為電磁閥20打開使得流體通過之狀況。承前述， 在活塞213朝向第三腔室217的方向移動並壓縮彈簧219時，活 塞213與支持部2121不再抵緊，使得流體可由第二腔室216經由 活塞213以及支持部2121之間的空隙2132流至第四腔室218，以 達成使流體流通之目的。 第5醜示第4圖中之活塞213的立體圖。該活塞213之中 央具有通孔2131且具有複數個突起2133，相鄰二突起2133之 =形成雜2132。在空隙2132不再為支持部2121所遮蔽時，流 體即可經工隙2132從第二腔室216流向第四腔室218。 需注意的是’在如第4圖所示為電磁閥2G於打開狀離下，活 流f壓力向上提升。此時，突起2133仍“分位於 土持4 mi之中。亦即’突起2印的長度大於活塞犯的在殼 體内，如此免因流難力纽不平衡的現象。 再以第4圖說明電磁閥關閉的動作：當線圈222消磁後，制 200944679 動器221因彈簧223的作用力向線圈222之外部方向頂出，因此 通孔2131再度被制動器221所遮蔽。液體續由第一腔室215經 狀間隙214流至第二腔室216，因此第三腔室217的流體貯壓逐^ 增加’復加上彈簧219的作用力，使得活塞213被推至原來的固 定位置。流體不再經空隙2132從第二腔室216流向第四腔室218。 僅有流體由第二腔室216經環狀間隙214流至第三腔室217作為 流體貯壓，最後與第二腔室216互為壓力平衡，達關 閉的狀態。 _ 復參考第5圖，活塞213更包含有墊片2134，可與支持部2121 抵接，以便在電磁閥20關閉時達到流體密封之效果。 〇 在本實施例中，第-外殼2U及第二外殼212可經由一螺絲 224組接’但不限於此，亦可以螺合、綱、咬合或嵌合的方式實 行之。 、第6A圖為第2至4圖所示之電磁閥2〇的第二外殼212的側 視剖面圖。流體入口及出口係互為垂直之情況，即第—腔室215 之軸線AA，及第四腔室218之軸線^，係為垂直，即呈9〇度之夾 角。此外丄第二腔室216之底面係為一斜面且遠離第一腔室215 之處為較高，如線BB，所示❶該線BB，與軸線aa，可呈15至4〇 ❹ ϋί角r/ί佳Ϊ %度之夾角。該夾角的大小端視所欲控制的流 體種類、壓力、體入口（即第一腔室)之孔徑而改變。 第6B圖為第6A圖所示之第二外殼212的上視圖。第二腔室 216之底面225(如圖斜線所示)係一圍繞支持部2121之環形區域。 該環形區域仙對於紙平面為-斜面。航可減少活塞在水平方 ，產生不穩定的搖觸作，減少絲情形，並制最少的壓降損 失。 、 的明之電磁闊係以活塞與該突出部之間所形成 ==、以仏體通過，故可減少材料使用。與f知技術相較，本 的/件，不需使用薄膜組件即可達到同樣的效果， 亦避免了使用相組件容祕生的斷裂㈣成電酬失效的問 8 200944679 題。因此，本發明具有較佳的可靠度及使用壽命。 拌iff所述僅為舉例性’而非為限制性。任何未脱離本發明之 而對其進行之等效修改或變更，均應包含於後附之 甲凊專利範圍中。 【圖式簡單說明】 ^1圖顯示習用之電磁閥的剖面圖； 之貞Γ依縣剌之—較佳實關之電磁_各種狀態 ^圖顯示第2至4圖所示電磁閥的活塞立體示意圖； 圖顯示第2至4圖所示電磁閥之第二外殼的側視剖面圖；以 第6Β圖顯示第6Α圖所示之第二外殼的上視圖。 【主要元件符號說明】 1 電磁閥體 2132 2 薄膜組件 2133 3 聯通孔 2134 4 第一腔室 214 5 第二腔室 215 6 第三腔室 216 7 電磁線圈 217 8 柱塞 218 9 活塞裝置 219 10 支撐管 22 20 電磁閥 221 21 主閥部 222 211 第一外殼 223 2111 突出部 224 m 空隙 突起 墊片 間隙 第一腔室 第二腔室 第三腔室 第四腔室 彈簧 電磁驅動部 制動器 線圈 彈簧 螺絲 9 200944679 212 第二外殼 225 底面 2121 支持部 AA' 車由線 213 活塞 BB' 線 2131 通孔 CC， 軸線 10> η Figure 3 shows the state in which the solenoid valve 2 is just opened. When the coil 222 receives the external nickname and the current generates a magnetic force, the brake 221 is driven to lift up and compress the spring 223. Since the through hole 2131 located in the piston 213 is no longer blocked by the actuator 221, the fluid can flow from the third chamber 217 through the through hole 2131 to the fourth chamber 218, causing the fluid pressure of the third chamber 217 to instantaneously decrease. . At this time, the piston 213 will start moving toward the direction of lower pressure (i.e., the third chamber 217). Fig. 4 shows the state in which the solenoid valve 20 is opened to allow fluid to pass. As described above, when the piston 213 moves toward the third chamber 217 and compresses the spring 219, the piston 213 and the support portion 2121 are no longer abutted, so that fluid can be passed between the second chamber 216 and the support portion 2121. The void 2132 flows to the fourth chamber 218 for the purpose of circulating the fluid. The fifth ugly shows a perspective view of the piston 213 in Fig. 4. The center of the piston 213 has a through hole 2131 and has a plurality of protrusions 2133, and the adjacent two protrusions 2133 have a defect 2132. When the void 2132 is no longer obscured by the support portion 2121, the fluid can flow from the second chamber 216 to the fourth chamber 218 via the gap 2132. It should be noted that, as shown in Fig. 4, the solenoid valve 2G is opened in an open state, and the flow f pressure is raised upward. At this time, the protrusion 2133 is still "divided in the soil holding 4 mi. That is, the length of the protrusion 2 is larger than that of the piston in the casing, so that the flow is difficult to balance." The action of closing the solenoid valve is shown: when the coil 222 is demagnetized, the 200944679 actuator 221 is ejected toward the outer direction of the coil 222 by the force of the spring 223, so the through hole 2131 is again obscured by the brake 221. The liquid continues from the first chamber. The chamber 215 flows through the gap 214 to the second chamber 216, so that the fluid storage pressure of the third chamber 217 is increased by the force of the spring 219, so that the piston 213 is pushed to the original fixed position. The second chamber 216 flows from the second chamber 216 to the fourth chamber 218 via the gap 2132. Only fluid flows from the second chamber 216 through the annular gap 214 to the third chamber 217 as a fluid reservoir, and finally to the second chamber 216. The pressure is balanced with each other and reaches the closed state. _ Referring to Fig. 5, the piston 213 further includes a gasket 2134 which can abut against the support portion 2121 to achieve a fluid sealing effect when the solenoid valve 20 is closed. In an embodiment, the first outer casing 2U and the second outer casing 212 are The screw 224 is assembled, but is not limited thereto, and may be implemented by screwing, meshing, snapping or fitting. The 6A is the side of the second casing 212 of the solenoid valve 2〇 shown in FIGS. 2 to 4. Referring to the cross-sectional view, the fluid inlet and outlet are perpendicular to each other, that is, the axis AA of the first chamber 215 and the axis ^ of the fourth chamber 218 are perpendicular, that is, an angle of 9 degrees. The bottom surface of the two chambers 216 is a slope and is higher away from the first chamber 215, as shown by the line BB, the line BB, and the axis aa, can be 15 to 4 〇❹ ί angle r / ί The angle of the angle is changed depending on the type of fluid to be controlled, the pressure, and the aperture of the body inlet (i.e., the first chamber). Fig. 6B is a second outer casing 212 shown in Fig. 6A. The bottom surface 225 of the second chamber 216 (shown as a diagonal line) is an annular region surrounding the support portion 2121. The annular region is a beveled surface for the paper plane. The navigation can reduce the piston in the horizontal direction, resulting in no Stable rocking, reducing the wire condition and making the least pressure drop loss. The formation of the == between the parts, the passage of the body, so that the use of materials can be reduced. Compared with the technology, the same effect can be achieved without using a thin film component, and the use of phase components is avoided. The fracture of the secret (4) is the failure of the electricity payment. The problem of the invention is that the invention has better reliability and service life. The description of the invention is merely exemplary and not limiting. Equivalent modifications or changes to them shall be included in the scope of the attached patents. [Simplified illustration] ^1 shows a cross-sectional view of a conventional solenoid valve; - a better-looking electromagnetic _ various states ^ Figure shows a perspective view of the piston of the solenoid valve shown in Figures 2 to 4; the figure shows a side cross-sectional view of the second casing of the solenoid valve shown in Figures 2 to 4; Figure 6 shows a top view of the second housing shown in Figure 6. [Main component symbol description] 1 Solenoid valve body 2132 2 Thin film assembly 2133 3 Communication hole 2134 4 First chamber 214 5 Second chamber 215 6 Third chamber 216 7 Electromagnetic coil 217 8 Plunger 218 9 Piston device 219 10 Support tube 22 20 Solenoid valve 221 21 Main valve portion 222 211 First housing 223 2111 Projection portion 224 m Air gap protrusion gasket gap First chamber Second chamber Third chamber Fourth chamber Spring Electromagnetic drive Brake coil spring Screw 9 200944679 212 Second housing 225 bottom 2121 support AA' car by line 213 piston BB' line 2131 through hole CC, axis 10