1324970 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種液壓煞車系統，特別是有關於一 種可降低煞車油之溫度之液壓煞車系統。 【先前技術】 請參閱第1圖，一種習知之液壓煞車系統1主要包括 Φ 有一煞車總泵10、一煞車油管2〇及一煞車卡鉗30。 煞車卡鉗30是藉由煞車油管20連通於煞車總泵10， 並且煞車卡钳30具有·—^甜缸體31、一油室32、一油封 33、一活塞34、一第一煞車蹄片35a及一第二煞車蹄片35b。 油室32是成形於卡鉗缸體31之中，並且油室32是連 - 通於煞車油管20。在此，煞車總泵10、煞車油管20及油 室32中皆容納有煞車油（未顯示）。 油封33是連接於卡鉗缸體31，並且油封33是設置於 φ 油室32之中。 活塞34是以移動之方式設置於油室32之中，並且活 塞34是緊密地穿設於油封33之中。 第一煞車蹄片35a是連接於活塞34。 第二煞車蹄片35b是連接於卡钳缸體31，並且第二煞 車蹄片35b是相對及間隔於第一煞車蹄片35a。在此，一 煞車碟盤（未顯示）是設置於第一煞車蹄片35a與第二煞車 蹄片35b之間。 當以煞車總泵10建立一煞車油壓時，煞車油會經由煞 6 1324970 車油管20流入煞車卡鉗30之油室32之中，因而推動活塞 34。在此，活塞34會克服油封33之阻力而（向左）移動， 進而使得連接於活塞34之第一煞車蹄片35a亦（向左）移 動。此時，第一煞車蹄片35a及第二煞車蹄片35b即可夾 住煞車碟盤，以達成煞車制動效果。值得注意的是，在活 塞34克服油封33之阻力而（向左）移動時，油封33會發生 彈性變形。 接著，當煞車總泵10被釋放而使該煞車油壓消失時， 活塞34會因油封33所提供之回復彈力而（向右）移動，進 而迫使油室32中之部份煞車油流至煞車總泵10之中。 如上所述，當液壓煞車系統1被頻繁操作時，其煞車 卡鉗30會產生高溫發熱現象。然而，位於煞車卡鉗30(或 油室32)中之煞車油會因高溫而發生氧化變質或汽化現 象，因而會使得煞車制動效果變差。 有鑑於此，本發明之目的是要提供一種液壓煞車系 統，其可有效防止煞車油因高溫而發生氧化變質或汽化現 象，以維持良好的煞車制動效果。 【發明内容】 本發明基本上採用如下所詳述之特徵以為了要解決上 述之問題。也就是說，本發明包括一煞車總泵；一煞車卡 鉗，具有一進油口及一出油口； 一第一煞車油管’連通於 該煞車總泵與該煞車卡鉗之該進油口之間；一第一單向 閥，設置於該第一煞車油管之上；一第二煞車油管，連通 於該煞車總泵與該煞車卡鉗之該出油口之間；以及一第二 7 1324970 單向闊，設置於該第二煞車油管之上，其中，該煞車總泵、 該進油口、該出油口、該第一煞車油管及該第二煞車油管 係容納一煞車油，當該煞車總泵被操作而建立一煞車油壓 時，該煞車油係僅能經由該第一煞車油管、該第一單向閥 及該進油口流至該煞車卡钳之中，以產生煞車制動效果， 以及當該煞車總泵被釋放而使該煞車油壓消失時，該煞車 油係僅能經由該出油口、該第二煞車油管及該第二單向閥 流至該煞車總泵之中。 同時，根據本發明之液壓煞車系統，該第二單向閥之 設置方向係與該第一單向閥之設置方向相反。 又在本發明中，該煞車卡钳更具有·—鉗缸體、一油 室、一油封、一活塞、一第一煞車蹄片及一第二煞車蹄片， 其中，該油室係成形於該卡鉗缸體之中，並且係連通於該 進油口及該出油口，該油封係連接於該卡钳缸體，並且係 設置於該油室之中，該活塞係以移動之方式設置於該油室 之中，並且係緊密地穿設於該油封之中，該第一煞車蹄片 係連接於該活塞，以及該第二煞車蹄片係連接於該卡鉗缸 體，並且係相對及間隔於該第一煞車蹄片。 為使本發明之上述目的、特徵和優點能更明顯易懂， 下文特舉較佳實施例並配合所附圖式做詳細說明。 【實施方式】 茲配合圖式說明本發明之較佳實施例。 第一實施例 請參閱第2圖，本實施例之液壓煞車系統100主要包 8 1324970 括有一煞車總泵110、一煞車卡鉗120、一第一煞車油管 131、一第一單向閥141、一第二煞車油管132及一第二單 向閥142。 煞車卡甜120具有一進油口 121、一出油口 122--- 鉗缸體123、一油室124、一油封125、一活塞126、一第 一煞車蹄片127a及一第二煞車蹄片127b。油室124是成 形於卡钳缸體123之中，並且油室124是連通於進油口 121 及出油口 122。油封125是連接於卡甜缸體123，並且油封 125是設置於油室124之中。活塞126是以移動之方式設 置於油室124之中，並且活塞126是緊密地穿設於油封125 之中。第一煞車蹄片127a是連接於活塞126。第二煞車蹄 片127b是連接於卡鉗缸體123,並且第二煞車蹄片127b 是相對及間隔於第一煞車蹄片127a。在此，一煞車碟盤（未 顯示）是設置於第一煞車蹄片127a與第二煞車蹄片127b之 間。 此外，煞車總泵110、進油口 121、出油口 122、第一 煞車油管131及第二煞車油管132中皆容納有煞車油（未顯 示）。 第一煞車油管131是連通於煞車總泵110與煞車卡鉗 120之進油口 121之間。 第一單向閥141是設置於第一煞車油管131之上。在 此，藉由第一單向閥141之配置，煞車油能依序經由第一 煞車油管131、第一單向閥141及進油口 121流至煞車卡 钳120之中，而無法經由第一單向閥141反向流動。 9 1324970 110中降溫，因而可有效防止煞車油因高溫而發生氧化變 質或汽化現象，進而可維持良好的煞車制動效果。 第二實施例 請參閱第3圖’本實施例之液壓煞車系統2〇〇主要包 括有一煞車總泵210、一控制閥220及一煞車卡甜23〇。 控制閥220具有一第一油室221、一第二油室222、一 第三油室223、一柱塞224、一第一單向皮碗22Sa及一第 二單向皮碗225b。第一油室221是藉由一第一煞車油管241 來連通於煞車總泵210。柱塞224是設置於第一油室221、 第二油室222與第三油室223之間。第一單向皮碗225a是 穿設於柱塞224之上，其可將第一油室221隔離於第二油 室222。第二單向皮碗225b是穿設於柱塞224之上，其可 將第一油室221隔離於第三油室223。值得注意的是，第 一卓向皮碗225a之設置方向是與第二單向皮碗225b之設 置方向相同。 煞車卡鉗230具有一進油口 231、一出油口 232、一卡 鉗缸體233、一第四油室234、一油封235、一活塞236、 一苐一煞車蹄片237a及一第二煞車蹄片237b。進油口 231 是藉由一第二煞車油管242來連通於控制闊220之第二油 室222。出油口 232是藉由一第三煞車油管243來連通於 控制閥220之第三油室223。第四油室234是成形於卡鉗 缸體233之中，並且第四油室234是連通於進油口 231及 出油口 232。油封235是連接於卡甜紅體233，並且油封 235是設置於第四油室234之中。活塞236是以移動之方 1324970 式設置於第四油室234之中，並且活塞236是緊密地穿設 於油封235之中。第一煞車蹄片237a是連接於活塞236。 第二煞車蹄片237b是連接於卡鉗缸體233，並且第二煞車 蹄片237b是相對及間隔於第—煞車蹄片237a。在此，一 煞車碟盤（未顯示）是設置於第一煞車蹄片237a與第二煞車 蹄片237b之間。 此外，煞車總泵210、第一油室221、第二油室222、 第三油室223、進油口 231及出油口 232中皆容納有煞車 油（未顯示）。 特別的是，藉由第一單向皮碗225a之配置，煞車油能 依序經由第一油室221、第一單向皮碗225a、第二油室222 及進油口 231流至煞車卡鉗230之中，而無法經由第一單 向皮碗225a反向流動。此外，藉由第二單向皮碗225b之 配置，煞車油能依序經由出油口 232、第三油室223、第二 單向皮碗225b及第一油室221流至煞車總泵210之中，而 無法經由第二單向皮碗225b反向流動。 當煞車總泵210被操作而建立一煞車油壓時，煞車油 僅能經由第一油室221、第一單向皮碗225a、第二油室222 及進油口 231流至煞車卡鉗230之中，因而推動活塞236。 在此，活塞236會克服油封235之阻力而（向左）移動，進 而使得連接於活塞236之第一煞車蹄片237a亦（向左）移 動。此時，第一煞車蹄片237a及第二煞車蹄片237b即可 失住煞車碟盤’以達成煞車制動效果。值得注意的是，在 ’舌塞236克服油封235之阻力而（向左）移動時，淹封 1324970 會發生彈性變形。 在另一方面，當煞車總泵210被釋放而使該煞車油壓 消失時，活塞236會因油封235所提供之回復彈力而（向右） 移動，進而迫使煞車卡鉗230中之部份煞車油僅能經由出 油口 232、第三油室223、第二單向皮碗225b及第一油室 221流至煞車總泵210之中。 如上所述，即使當液壓煞車系統200被頻繁操作而使 其煞車卡鉗230產生高溫發熱現象時，受熱後的煞車油可 經由出油口 232被輸送至第三煞車油管243、控制閥220、 第一煞車油管241或煞車總泵210中降溫，因而可有效防 止煞車油因高溫而發生氧化變質或汽化現象，進而可維持 良好的煞車制動效果。 雖然本發明已以較佳實施例揭露於上，然其並非用以 限定本發明，任何熟習此項技藝者，在不脫離本發明之精 神和範圍内，當可作些許之更動與潤飾，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。 1324970 【圖式簡單說明】 第1圖係顯示一習知之液壓煞車系統之部份平面及剖 面示意圖； 第2圖係顯示本發明之第一實施例之液壓煞車系統之 部份平面及剖面示意圖；以及 第3圖係顯示本發明之第二實施例之液壓煞車系統之 部份平面及剖面示意圖。 【主要元件符號說明】 1、100、200〜液壓煞車系統 10、110、210〜煞車總泵 20〜煞皁油管 30、 120、230〜煞車卡钳 31、 123、233〜卡鉗缸體 32、 124〜油室 33、 125、235〜油封 34、 126、236〜活塞 35a、127a、237a ~第一煞車蹄片 35b、127b、237b〜第二煞車蹄片 121、 231〜進油口 122、 232〜出油口 131、 241〜第一煞車油管 132、 242〜第二煞車油管 141〜第一單向閥 14 1324970 142〜第二單向閥 220〜控制閥 221〜第一油室 222〜第二油室 223〜第三油室 234〜第四油室 224〜柱塞 225a〜第一單向皮碗 225b〜第二單向皮碗 243〜第三煞車油管1324970 IX. Description of the Invention: TECHNICAL FIELD The present invention relates to a hydraulic brake system, and more particularly to a hydraulic brake system that can reduce the temperature of brake oil. [Prior Art] Referring to Fig. 1, a conventional hydraulic brake system 1 mainly includes a Φ main brake pump 10, a brake hose 2, and a brake caliper 30. The brake caliper 30 is connected to the brake master cylinder 10 by the brake oil pipe 20, and the brake caliper 30 has a sweet cylinder 31, an oil chamber 32, an oil seal 33, a piston 34, a first brake shoe 35a and A second brake shoe 35b. The oil chamber 32 is formed in the caliper cylinder 31, and the oil chamber 32 is connected to the brake oil pipe 20. Here, the brake master cylinder 10, the brake cylinder 20 and the oil chamber 32 all contain brake oil (not shown). The oil seal 33 is connected to the caliper cylinder 31, and the oil seal 33 is disposed in the φ oil chamber 32. The piston 34 is disposed in the oil chamber 32 in a moving manner, and the piston 34 is tightly disposed in the oil seal 33. The first brake shoe 35a is coupled to the piston 34. The second brake shoe 35b is coupled to the caliper cylinder 31, and the second brake shoe 35b is opposed to and spaced apart from the first brake shoe 35a. Here, a brake disc (not shown) is disposed between the first brake shoe 35a and the second brake shoe 35b. When a brake cylinder pressure is established by the brake master cylinder 10, the brake oil flows into the oil chamber 32 of the brake caliper 30 via the 煞 6 1324970 vehicle oil pipe 20, thereby pushing the piston 34. Here, the piston 34 moves against the resistance of the oil seal 33 (to the left), so that the first brake shoe 35a connected to the piston 34 is also moved (to the left). At this time, the first brake shoe 35a and the second brake shoe 35b can clamp the brake disk to achieve the brake effect. It is to be noted that the oil seal 33 is elastically deformed when the piston 34 moves against the resistance of the oil seal 33 (to the left). Then, when the brake master cylinder 10 is released and the brake oil pressure disappears, the piston 34 moves (to the right) due to the returning elastic force provided by the oil seal 33, thereby forcing some of the oil in the oil chamber 32 to flow to the brakes. In the master pump 10. As described above, when the hydraulic brake system 1 is frequently operated, the brake caliper 30 generates a high temperature heat generation phenomenon. However, the brake oil located in the brake caliper 30 (or the oil chamber 32) may be oxidized or deteriorated due to high temperature, and thus the brake effect of the brake may be deteriorated. In view of the above, an object of the present invention is to provide a hydraulic brake system which can effectively prevent oxidative deterioration or vaporization of brake oil due to high temperature to maintain a good brake braking effect. SUMMARY OF THE INVENTION The present invention basically employs the features detailed below in order to solve the above problems. That is, the present invention includes a brake master cylinder; a brake caliper having an oil inlet and an oil outlet; a first brake hose 'connected between the brake master cylinder and the intake port of the brake caliper a first check valve disposed above the first brake oil pipe; a second brake oil pipe connected between the brake master cylinder and the oil outlet of the brake caliper; and a second 7 1324970 one-way Widely disposed on the second brake pipe, wherein the brake master cylinder, the oil inlet, the oil outlet, the first brake oil pipe and the second brake oil pipe system receive a brake oil, when the brake When the pump is operated to establish a brake oil pressure, the brake oil can only flow into the brake caliper via the first brake oil pipe, the first check valve and the oil inlet to generate a brake effect, and When the brake master cylinder is released to cause the brake oil pressure to disappear, the brake oil can only flow into the brake master cylinder via the oil outlet, the second brake oil pipe and the second check valve. Meanwhile, according to the hydraulic brake system of the present invention, the second check valve is disposed in a direction opposite to the direction in which the first check valve is disposed. In the present invention, the brake caliper further includes a clamp cylinder, an oil chamber, an oil seal, a piston, a first brake shoe and a second brake shoe, wherein the oil chamber is formed in the brake shoe. a caliper cylinder connected to the oil inlet and the oil outlet, the oil seal being connected to the caliper cylinder and disposed in the oil chamber, the piston being disposed in the moving manner The oil chamber is tightly disposed in the oil seal, the first brake shoe is attached to the piston, and the second brake shoe is coupled to the caliper cylinder and is opposite and spaced apart from each other The first brake shoe. The above described objects, features and advantages of the present invention will become more apparent from the description of the appended claims. [Embodiment] A preferred embodiment of the present invention will be described with reference to the drawings. Referring to FIG. 2, the hydraulic brake system 100 of the present embodiment mainly includes a brake master cylinder 110, a brake caliper 120, a first brake oil pipe 131, a first check valve 141, and a first package 8 1324970. The second brake oil pipe 132 and a second check valve 142. The brake card 120 has an oil inlet 121, an oil outlet 122---the clamp cylinder 123, an oil chamber 124, an oil seal 125, a piston 126, a first brake shoe 127a and a second brake shoe. Sheet 127b. The oil chamber 124 is formed in the caliper cylinder 123, and the oil chamber 124 is communicated with the oil inlet port 121 and the oil outlet port 122. The oil seal 125 is coupled to the card cylinder 123, and the oil seal 125 is disposed in the oil chamber 124. The piston 126 is disposed in the oil chamber 124 in a moving manner, and the piston 126 is tightly disposed in the oil seal 125. The first brake shoe piece 127a is coupled to the piston 126. The second brake shoe piece 127b is coupled to the caliper cylinder 123, and the second brake shoe 127b is opposed to and spaced apart from the first brake shoe 127a. Here, a brake disc (not shown) is disposed between the first brake shoe 127a and the second brake shoe 127b. In addition, the brake master cylinder 110, the oil inlet 121, the oil outlet 122, the first brake oil pipe 131, and the second brake oil pipe 132 all contain brake oil (not shown). The first brake oil pipe 131 is connected between the brake master cylinder 110 and the oil inlet port 121 of the brake caliper 120. The first check valve 141 is disposed above the first brake oil pipe 131. Here, by the arrangement of the first check valve 141, the brake oil can sequentially flow through the first brake oil pipe 131, the first check valve 141, and the oil inlet 121 to the brake caliper 120, and cannot pass through the first The check valve 141 flows in the reverse direction. 9 1324970 110 cooling, so it can effectively prevent oxidative deterioration or vaporization of brake oil due to high temperature, and thus maintain good braking effect. SECOND EMBODIMENT Please refer to Fig. 3'. The hydraulic brake system 2 of the present embodiment mainly includes a brake master cylinder 210, a control valve 220, and a brake truck. The control valve 220 has a first oil chamber 221, a second oil chamber 222, a third oil chamber 223, a plunger 224, a first one-way cup 22Sa and a second one-way cup 225b. The first oil chamber 221 is connected to the brake master cylinder 210 by a first brake oil pipe 241. The plunger 224 is disposed between the first oil chamber 221, the second oil chamber 222, and the third oil chamber 223. The first one-way cup 225a is threaded over the plunger 224 to isolate the first oil chamber 221 from the second oil chamber 222. The second one-way cup 225b is disposed above the plunger 224 to isolate the first oil chamber 221 from the third oil chamber 223. It is to be noted that the first direction of the cup 225a is set in the same direction as the second one-way cup 225b. The brake caliper 230 has an oil inlet 231, an oil outlet 232, a caliper cylinder 233, a fourth oil chamber 234, an oil seal 235, a piston 236, a shovel 237a and a second shovel. Sheet 237b. The oil inlet port 231 is connected to the second oil chamber 222 of the control width 220 by a second brake oil pipe 242. The oil outlet 232 is connected to the third oil chamber 223 of the control valve 220 by a third brake oil pipe 243. The fourth oil chamber 234 is formed in the caliper cylinder 233, and the fourth oil chamber 234 is connected to the oil inlet 231 and the oil outlet 232. The oil seal 235 is connected to the card sweet red body 233, and the oil seal 235 is disposed in the fourth oil chamber 234. The piston 236 is disposed in the fourth oil chamber 234 in the manner of the moving side 1324970, and the piston 236 is tightly disposed in the oil seal 235. The first brake shoe 237a is coupled to the piston 236. The second brake shoe 237b is coupled to the caliper cylinder 233, and the second brake shoe 237b is opposed to and spaced apart from the first brake shoe 237a. Here, a brake disc (not shown) is disposed between the first brake shoe 237a and the second brake shoe 237b. Further, the brake master cylinder 210, the first oil chamber 221, the second oil chamber 222, the third oil chamber 223, the oil inlet port 231, and the oil outlet port 232 each contain brake oil (not shown). In particular, the brake oil can be sequentially flowed to the brake caliper via the first oil chamber 221, the first one-way cup 225a, the second oil chamber 222, and the oil inlet 231 by the arrangement of the first one-way cup 225a. 230, but cannot flow backward through the first one-way cup 225a. In addition, the brake oil can be sequentially flowed to the brake master cylinder 210 via the oil outlet 232, the third oil chamber 223, the second one-way cup 225b, and the first oil chamber 221 by the arrangement of the second one-way cup 225b. There is no reverse flow through the second one-way cup 225b. When the brake master cylinder 210 is operated to establish a brake oil pressure, the brake oil can only flow to the brake caliper 230 via the first oil chamber 221, the first one-way cup 225a, the second oil chamber 222, and the oil inlet 231. Medium, thus pushing the piston 236. Here, the piston 236 is moved (to the left) against the resistance of the oil seal 235, so that the first brake shoe 237a connected to the piston 236 is also moved (to the left). At this time, the first brake shoe piece 237a and the second brake shoe piece 237b can lose the brake disk plate ′ to achieve the brake effect. It is worth noting that the submerged seal 1324970 elastically deforms when the tongue plug 236 moves against the resistance of the oil seal 235 (to the left). On the other hand, when the brake master cylinder 210 is released to cause the brake oil pressure to disappear, the piston 236 will move (to the right) due to the returning elastic force provided by the oil seal 235, thereby forcing a portion of the brake caliper 230 to brake the brake oil. Only the oil outlet 232, the third oil chamber 223, the second one-way cup 225b, and the first oil chamber 221 can flow into the brake master cylinder 210. As described above, even when the hydraulic brake system 200 is frequently operated to cause the brake caliper 230 to generate a high temperature heat generation phenomenon, the heated brake oil can be sent to the third brake oil pipe 243, the control valve 220, and the second through the oil discharge port 232. The temperature of the brake oil pipe 241 or the brake master cylinder 210 is lowered, so that the brake oil can be effectively prevented from oxidative deterioration or vaporization due to high temperature, thereby maintaining a good braking effect. Although the present invention has been disclosed in its preferred embodiments, it is not intended to limit the present invention, and it is possible to make some modifications and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims. 1324970 [Simplified illustration of the drawings] Fig. 1 is a partial plan and cross-sectional view showing a conventional hydraulic brake system; Fig. 2 is a partial plan and cross-sectional view showing the hydraulic brake system of the first embodiment of the present invention; And Fig. 3 is a partial plan and cross-sectional view showing the hydraulic brake system of the second embodiment of the present invention. [Main component symbol description] 1, 100, 200~ hydraulic brake system 10, 110, 210 ~ brake master cylinder 20 ~ saponin tube 30, 120, 230 ~ brake caliper 31, 123, 233 ~ caliper cylinder 32, 124~ Oil chambers 33, 125, 235~ oil seals 34, 126, 236~ pistons 35a, 127a, 237a ~ first brake shoes 35b, 127b, 237b ~ second brake shoes 121, 231 ~ oil inlets 122, 232 The oil ports 131, 241, the first brake oil pipes 132, 242, the second brake oil pipe 141, the first check valve 14 1324970 142, the second check valve 220, the control valve 221, the first oil chamber 222, the second oil chamber 223 to third oil chamber 234 to fourth oil chamber 224 to plunger 225a to first one-way cup 225b to second one-way cup 243 to third brake tube