201120453 六、發明說明： 【發明所屬之技術領域】 尤其涉及一種探針連接 本發明涉及一種探針連接器 器及其製造方法。 【先前技術】 目前，隨著科技不斷發展進步，各種各樣的電子産$ ^紛問世，諸如數位攝影機、數位相機、行動電話以及其 匕一些便携式設備都已被現代人所接受且廣泛使用，這些 便携式電子産品大多數電源爲電池。在電子產品生産骑 ，程中’當現今電子產品的設計朝向高性能、高精度、高 印質的目標發展的同時，其附屬產品之電池就顯得特別的 重要。 傳統對於充電電池等電訊傳輸的探針連接器’其構造 包括絕緣殼體及收容於絕緣殼體内的金屬探針與壓縮彈 菁’因壓縮彈簧一端與電路板電連接，當金屬探針觸壓該 壓縮彈簧另一端時，該探針連接器可達到電訊傳輸的目 的。由於壓縮彈簧電訊傳遞的路徑長，且被壓縮形變時直 接影響電阻的高低差，因此，使得電流忽高忽低地傳輸而 影響到電訊傳輸的品質。 請參閱第一圖和第二圖，現有的改良型探針連接器1 包括：針管11、針軸12和彈簧13，所述針管11通過車 床加工製成，呈中空管狀，針管11的頂部開設有通孔111， 且針管11的頂部向内收縮形成阻擋部113，所述針管11 的底部封閉，且針管U底部的内表面上具有車床加工後 形成的一盲孔112;所述針軸丨2頂部穿過通孔111且裸露 於針管11外，且針轴12的底部卡接於針管11的通孔1 η 201120453 處針輛12的底部開設有底部凹槽121，底部凹槽ι2ι 與針管U貫通，彈簧13容置於針管u和12底部^設的 ^槽内，其-端與針轴12相抵頂，另—端與針管u的底 4相抵頂，針f u的底部用於與外部電路板相連接，針 轴12用於電連接外部電子産品，該針軸12與針管u電 j接，使得電訊傳輸路徑直接走“電子產品—針軸12_針 管U〜外部電路板”路線，從而改善了上述電訊號通過壓 縮彈簧13傳輸，避免了電訊號傳輸路綫長且不穩定 題。 。 參考第三至第六圖，現有的探針連接器丨製作時需 要以下步驟： 如第三圖所述，使用車床加工工藝製出針管u和針 軸12 ’製出彈簧13 ; 如第四圖所述’將彈簀13放入針管u内，彈脊13 下部抵頂在針管11底部； 如第五圖所述，將針轴12放入針管u内，底部凹槽 121的頂部觸壓彈簧13上部； 如第六圖所述，使用治具將針管u頂部向内縮口形 成阻擋部113，使針轴12底部卡接於通孔1U處，即成成 品。 然而，該探針連接器1改良了電連接性能的同時，又 出現了新的問題，一方面，上述探針連接器丨的針管i j 採用車床加工工藝製成，在成型的過程中在針管u的底 部形成了 一盲孔112，不可避免的出現了盲孔件的缺點： (1)盲孔電鍵要求的技術性高，在盲孔112内不容易敷 上電鍍層。（2)上述電鍍不良會導致探針連接器1的阻值 201120453 過咼，易發熱，降低了 床加工工藝製成的針使用壽命；另一方面，使用車 時，需要先將針轴12矣呈直管狀，製造探針連接器1 管11的頂部進行縮孜入針管11内，再通過治具將針 卡接，而通過治且對口戶斤，、+形成阻擋部113與針轴12的底部 現縮口過小或過又的^針管11頂部進行縮口，容易出 床工藝製作針管，;^成品率低；再—方面’通過車 【發明内容】 订大規模生成’且成本較高。 種探的目的在於針對上述現有技術之不足’提供— 低，壽命’該探針連接器表面鍵層可達均勻，阻值 哥命長’可大規模生産且成品率高。 本發月的目的在於提供一種探針連接器 法’使用㈣造方法可大規模生産，且成品率高。 爲實現上述目的’本發明所提供一種探針連接器，包 括針管、針軸和彈脊，所述針管具有中空的容置管腔 管的頂部開設有與容置管腔相連通的通孔，針管底部開讯 有與容置管腔相連通的安裝孔，針f底部的管壁上連接: 與安裝孔相匹配的後蓋，後蓋和安裝孔具有打開和關閉狀 態；針轴包括針軸主體和針轴底部，針軸主體穿過安裝孔 和通孔並裸露於針轴外’料底部卡接於針管的通孔产 針軸底部開設有針轴凹槽，針轴凹槽向内延伸形成針= 腔，針軸空腔與容置管腔相貫通；彈簧的上端穿過安^ 並進入針轴空腔且抵於針轴空腔的頂部，後蓋關' 且抵頂彈簧的底部》 本發明所還提供了上述探針連接器的製造方法 以下步驟： 估 201120453 (1) 提供針管，針管的後蓋呈打開狀態； (2) 提供針轴，將針軸主體從針管的安裝孔插入針 管内’直至針軸主體穿過通孔而針軸底部卡接於針管的通 孔處， (3) 提供彈簧，將彈簧的上端穿過安裝孔並進入針 轴空腔，直至彈簧的上端抵於針軸空腔的頂部； (4) 將後蓋關閉安裝孔，使後蓋抵頂彈簧的底部。 如上所述’本發明探針連接器及其製造方法，與現有探針 連接器的針管底部封閉的結構不同，由於本發明探針連接 的針管的底部開設有安裝孔和與安裝孔相配合的後 蓋’一方面解决了現有的探針連接器針管通過車床加工製 作出現的盲孔件缺點，使得針管表面鍍層可達均勻，從而 産品阻值低，解决了現有探針連接器原有産品易發熱，使 用哥命低的問題；另一方面本發明的針管可通過沖壓工藝 製成，從而使得本發明探針連接器可以通過開立模具來進 行大規模生産，降低了生産成本；再一方面，本發明通過 先後將針轴和彈簧置入針管中，再關閉後蓋製成，解决了 現有技術中進行縮口工藝製造産品産生的成品率低的問 題。因此，本發明探針連接器及其製造方法具有阻值低、 壽命長、成本低且成品率高的優點。 【實施方式】 爲詳細說明本發明之技術内容、構造特徵 '所達成的目 的及功效，以下茲例舉實施例幷配合圖式詳予說明。 言月參閱第七至第十圖，本發明探針連接器2包括針管 21、針軸22以及彈簧23。 201120453 q參考第人至第十a，在本發探針連接器2中針管 2二具有中空的容置管腔216 ’針管21的頂部開設有與容 ^腔216相連通的通孔211，針管21的底部開設有與容 :胺216相連通的安裝孔212，針管21底部的管壁上連 接有與安裝孔2!2相匹配的後蓋扣，後蓋扣和安裝孔 212具有打開和關閉狀態；具體地，針管21㈤ 叫之間設有f折部215，組㈣針連接器2時，後蓋213 打開’將針軸22㈣簧23先後置入容置管腔216内再 具將f折部215料，使後蓋213關閉安裝孔212, ^彈f 23的一端抵在後蓋213上，f折部215不但將針 5 1的管壁和後蓋213連接起來，並使後蓋213方便省 力地關閉安裝孔212。 請參考第八至第十圖，本發明探針連接器2中，針軸 22包括針軸主體223和針軸底部224，所述針軸主體223 穿過針管21頂部的通孔211，針轴底部224卡接於針管 21的通孔211處，針轴底部224開設有針軸凹槽，且針軸 凹槽向内延伸形成一個針軸空腔221，針軸空腔221與六 置管腔216相貫通，彈簧23容置於針軸空腔221和容谷 管腔216内，彈簧23的上端穿過安裝孔212進入針二由 腔221且抵於針轴空腔221頂部，後蓋213關閉安裴孔2 = 且抵頂彈簧23的底部。具體地，針轴底部224向外延伸 形成一卡接部222，針管21的通孔211周緣向容置管 216内延伸形成阻擋部214，針轴主體223穿過通孔 並裸露在針管21外’針軸底部224的卡接部222 卜 21的阻檔部214抵接，使針軸底部224卡接於針螯、 通孔211處。 21的 201120453 描述本發明探針連接器2 如第十一至第十四圖所示 的製造方法，包括以下步驟： (1) 參考第十一圖，提供針管21，針管2ι的 213呈打開狀態。具體地，該針管21爲沖壓工藝製成，其 後蓋213和針管21爲一體式結構，需要關閉安裝孔21〃2 時，使用治具將後蓋213彎折90度就可關閉安裝孔212。201120453 VI. Description of the Invention: [Technical Field of the Invention] In particular, the present invention relates to a probe connector and a method of fabricating the same. [Prior Art] At present, with the continuous development of technology, a variety of electronic products have been introduced, such as digital cameras, digital cameras, mobile phones and some portable devices have been accepted and widely used by modern people. Most of these portable electronic products are batteries. In the production of electronic products, Chengzhong's current electronic products are designed to achieve the goals of high performance, high precision and high printing quality, while the battery of its subsidiary products is particularly important. Conventionally, a probe connector for a telecommunication transmission such as a rechargeable battery has a structure including an insulating case and a metal probe and a compressed elastic body housed in the insulating case. The one end of the compression spring is electrically connected to the circuit board when the metal probe touches When the other end of the compression spring is pressed, the probe connector can achieve the purpose of telecommunications transmission. Since the path of the compression spring telecommunications transmission is long and directly affects the height difference of the resistor when it is compressed and deformed, the current is transmitted at a high and low frequency, which affects the quality of the telecommunications transmission. Referring to the first and second figures, the prior art improved probe connector 1 comprises: a needle tube 11, a needle shaft 12 and a spring 13, which is made by lathe processing, has a hollow tubular shape, and the top of the needle tube 11 is opened. a through hole 111, and the top of the needle tube 11 is inwardly contracted to form a blocking portion 113, the bottom of the needle tube 11 is closed, and the inner surface of the bottom portion of the needle tube U has a blind hole 112 formed after lathe processing; 2 The top portion passes through the through hole 111 and is exposed outside the needle tube 11, and the bottom of the needle shaft 12 is engaged with the through hole 1 of the needle tube 11 η 201120453 The bottom portion of the needle 12 is provided with a bottom groove 121, a bottom groove ι2ι and a needle tube U through, the spring 13 is accommodated in the groove of the bottom of the needles u and 12, the end of which is abutted against the needle shaft 12, the other end is abutted against the bottom 4 of the needle u, and the bottom of the needle fu is used for external The circuit board is connected, the needle shaft 12 is used for electrically connecting the external electronic product, and the needle shaft 12 is connected with the needle tube, so that the telecommunication transmission path directly goes to the "electronic product - the needle shaft 12_the needle tube U to the external circuit board" route. Thereby improving the above-mentioned electric signal transmission through the compression spring 13, avoiding electricity No long transport routes and unstable problem. . Referring to the third to sixth figures, the existing probe connector 需要 requires the following steps: As shown in the third figure, the needle tube u and the needle shaft 12' are used to make the spring 13 using a lathe machining process; The 'put the magazine 13 into the needle tube u, the lower portion of the ridge 13 abuts against the bottom of the needle tube 11; as shown in the fifth figure, the needle shaft 12 is placed in the needle tube u, and the top touch groove spring of the bottom groove 121 13 upper portion; as shown in the sixth figure, the tip of the needle tube u is inwardly contracted to form a blocking portion 113, and the bottom of the needle shaft 12 is snapped at the through hole 1U to form a finished product. However, the probe connector 1 has improved the electrical connection performance, and a new problem has arisen. On the one hand, the needle tube ij of the above-mentioned probe connector is made by a lathe processing process, and the needle tube u is formed during the molding process. A blind hole 112 is formed at the bottom, and the disadvantages of the blind hole member are unavoidable: (1) The technical requirement of the blind hole key is high, and the plating layer is not easily applied in the blind hole 112. (2) The above-mentioned poor plating will cause the resistance of the probe connector 1 to be too long, which is easy to generate heat, which reduces the service life of the needle made by the bed processing technology. On the other hand, when using the vehicle, the needle shaft 12矣 needs to be first The tubular connector 1 is made into a straight tubular shape, and the top of the tube 11 of the probe connector 1 is retracted into the needle tube 11, and then the needle is snapped by the jig, and the nozzle is clamped, and the barrier portion 113 and the needle shaft 12 are formed. The bottom of the needle is too small or too long to shrink the top of the needle tube 11, easy to get out of the process of making the needle tube; ^ low yield; re--the 'passing the car [invention content] set large-scale generation 'and higher cost. The purpose of the probe is to provide for the above-mentioned deficiencies of the prior art - low, long life, the surface of the probe connector can be uniform, and the resistance value can be large-scale production and high yield. The purpose of this month is to provide a probe connector method which can be mass-produced using the (four) manufacturing method and has a high yield. In order to achieve the above object, the present invention provides a probe connector including a needle tube, a needle shaft and a ridge, wherein the needle tube has a hollow receiving tube, and a top portion of the tube is connected with a through hole communicating with the accommodating tube cavity. The bottom of the needle tube has a mounting hole communicating with the accommodating lumen, and the tube wall at the bottom of the needle f is connected: a rear cover matching the mounting hole, the rear cover and the mounting hole have an open state and a closed state; the needle shaft includes a needle shaft The main body and the bottom of the needle shaft, the main body of the needle shaft passes through the mounting hole and the through hole and is exposed outside the needle shaft. The bottom of the material is stuck at the bottom of the needle hole of the needle tube, and the needle shaft groove is opened, and the needle shaft groove extends inward. Forming a needle=cavity, the needle shaft cavity is continuous with the accommodating lumen; the upper end of the spring passes through the amp and enters the needle shaft cavity and abuts against the top of the needle shaft cavity, and the rear cover closes and abuts the bottom of the spring The present invention also provides the following steps for manufacturing the above probe connector: Estimate 201120453 (1) Providing a needle tube, the back cover of the needle tube is opened; (2) providing a needle shaft, the needle shaft body is installed from the needle tube mounting hole Insert into the needle tube until the needle body passes through the through hole and the needle The bottom is snapped into the through hole of the needle tube, (3) providing a spring, passing the upper end of the spring through the mounting hole and entering the needle shaft cavity until the upper end of the spring abuts against the top of the needle shaft cavity; (4) the back cover Close the mounting hole so that the back cover abuts against the bottom of the top spring. As described above, the probe connector of the present invention and the manufacturing method thereof are different from the structure of the bottom of the needle tube of the conventional probe connector, and the bottom of the needle tube to which the probe of the present invention is connected is provided with a mounting hole and a matching hole with the mounting hole. The back cover solves the shortcomings of the existing blind connector of the probe connector through the lathe processing, so that the coating on the surface of the needle tube can be evenly distributed, so that the resistance of the product is low, and the original product of the existing probe connector is solved. The problem of low fever is used for the fever; the needle tube of the present invention can be made by a stamping process, so that the probe connector of the present invention can be mass-produced by opening the mold, thereby reducing the production cost; The invention is prepared by sequentially placing the needle shaft and the spring into the needle tube and then closing the back cover, thereby solving the problem of low yield of the products manufactured by the shrinking process in the prior art. Therefore, the probe connector of the present invention and the method of manufacturing the same have the advantages of low resistance, long life, low cost, and high yield. [Embodiment] In order to explain in detail the objectives and effects of the technical contents and structural features of the present invention, the following embodiments are described in detail with reference to the drawings. Referring to the seventh to tenth views, the probe connector 2 of the present invention includes a needle tube 21, a needle shaft 22, and a spring 23. 201120453 q Referring to the first person to the tenth a, in the probe connector 2 of the present invention, the needle tube 2 has a hollow receiving lumen 216'. The top of the needle tube 21 is provided with a through hole 211 communicating with the cavity 216, the needle tube The bottom of the 21 is provided with a mounting hole 212 communicating with the amine: 216, and the bottom wall of the needle tube 21 is connected with a rear cover buckle matching the mounting hole 2! 2, and the rear cover and the mounting hole 212 are opened and closed. State; specifically, the needle tube 21 (f) is provided with an f-fold portion 215, and when the group (four) needle connector 2 is opened, the rear cover 213 is opened to insert the needle shaft 22 (four) spring 23 into the accommodating lumen 216 and then fold the f The portion 215 is configured such that the rear cover 213 closes the mounting hole 212, and one end of the spring f 23 abuts against the rear cover 213. The f-folded portion 215 not only connects the tube wall of the needle 51 and the rear cover 213, but also the rear cover 213. The mounting hole 212 is conveniently and labor-savingly closed. Referring to the eighth to tenth views, in the probe connector 2 of the present invention, the needle shaft 22 includes a needle shaft main body 223 and a needle shaft bottom portion 224, and the needle shaft main body 223 passes through the through hole 211 at the top of the needle tube 21, the needle shaft The bottom portion 224 is engaged with the through hole 211 of the needle tube 21, the needle shaft bottom portion 224 is provided with a needle shaft groove, and the needle shaft groove extends inward to form a needle shaft cavity 221, the needle shaft cavity 221 and the six-tube lumen The 216 is continuous, the spring 23 is received in the needle shaft cavity 221 and the cavity 216, and the upper end of the spring 23 passes through the mounting hole 212 to enter the needle 221 and the top of the needle shaft cavity 221, and the rear cover 213 Close the mortise hole 2 = and abut the bottom of the spring 23. Specifically, the needle shaft bottom 224 extends outwardly to form a latching portion 222. The peripheral edge of the through hole 211 of the needle tube 21 extends into the receiving tube 216 to form a blocking portion 214. The needle shaft main body 223 passes through the through hole and is exposed outside the needle tube 21. The blocking portion 214 of the engaging portion 222 of the needle shaft bottom portion 224 abuts, and the needle shaft bottom portion 224 is engaged with the needle and the through hole 211. 201120453 of 21 describes the manufacturing method of the probe connector 2 of the present invention as shown in the eleventh to fourteenth drawings, comprising the following steps: (1) Referring to the eleventh figure, the needle tube 21 is provided, and the needle 213 of the needle tube 2 is opened. . Specifically, the needle tube 21 is made by a stamping process, and the back cover 213 and the needle tube 21 are of an integral structure. When the mounting hole 21〃2 needs to be closed, the mounting hole 212 can be closed by bending the back cover 213 by 90 degrees using a jig. .
(2) 參考第十一圖和第十二圖，提供針軸，將針 軸主體223從針管21的安裝孔212插入所述針管21的容 置官腔216，直至針軸主體223穿過通孔211而針轴底部 224卡接於針管21的通孔211處，其中，針軸主體223 裸露於針管21的外部，針軸空腔221與容置管腔216相 貫通。具體地，針轴底部224向外延伸形成一卡接部222, 21的通孔211周緣向容置管腔216内延伸形成阻播 部214，將針軸22置入針管21後，針軸主體223穿過通 孔211裸露於針管21的外部，而阻擋部214將卡接部222 阻擒在針管21的容置管腔216内，使卡接部222與阻擋 部214抵接。 (3) 參考第十二圖和第十三圖，提供彈簧23，將彈 箸23的上端穿過安裝孔212並進入針軸空腔221，直至彈 簽23的上端抵於針轴空腔221的頂部。 (4) 參考第十三圖和第十四圖，將針管21的後蓋213 關閉安裝孔212，使後蓋213抵頂彈簧23的底部，使得彈 菁23置於容置管腔216和針轴空腔内，彈簧23上端 抵於針轴空腔221頂部，彈簧23下端抵於針管21底部的 後蓋213上，形成探針連接器2成品。具體地’針管21 的管壁與後蓋213之間設有一彎折部215，後蓋213關閉 201120453 安裝孔212時，使用治具將後蓋213沿著彎折部215的折 綫彎折90度，使後蓋213將安裝孔關閉並抵頂彈簧23底 部。 本發明式探針連接器2的針軸22可爲圓形、方形或 其它的形狀，相應地，針管21也可爲圓形、方形或其它 的形狀。 綜上所述，本發明探針連接器2的針管21的底部開 設有安裝孔212和與安裝孔212相配合的後蓋213，一方 面解决了習知的探針連接器針軸通過車床加工製作出現 的盲孔件缺點，使得本發明針管21表面鍍層可達均勻， 從而産品阻值低，解决了習知探針連接器原有產品易發 熱，使用壽命低的問題；另一方面本發明的針管21可通 過沖壓工藝製成，從而使得本發明探針連接器2可以通過 開立模具來進行大規模生産，降低了生産成本；再一方 面，本發明通過先後將針軸22和彈簧23置入針管21中， 再關閉後蓋213製成，解决了現有技術中進行縮口工藝製 造產品産生的成品率低的問題。因此，本發明探針連接器 及其製造方法具有阻值低、壽命長、成本低且成品率高的 優點。 【圖式簡單說明】 第一圖係現有探針連接器的平面圖。 第二圖係沿第一圖中A-A綫的剖視圖。 第三至六圖展示了現有探針連接器的製造步驟。 第七圖係本發明背向組合式探針連接器的立體圖。 第八圖係第七圖所述探針連接器的平面圖。 201120453 第九圖係沿第八圖中B-B綫的剖視圖。 第十圖係第七圖所述探針連接器的立體分解圖。 第十一至十四圖展示了本發明背向組合式探針連接 器的製造步驟。 【主要元件符號說明】 探針連接器 2 針管 21 通孔 211 安裝孔 212 後蓋 213 阻擂部 214 彎折部 215 容置管腔 216 針軸 22 針軸空腔 221 卡接部 222 針軸主體 223 針軸底部 224 彈簧 23 11(2) Referring to the eleventh and twelfth drawings, a needle shaft is provided, and the needle shaft main body 223 is inserted into the accommodation body cavity 216 of the needle tube 21 from the mounting hole 212 of the needle tube 21 until the needle shaft main body 223 passes through the through hole The needle shaft bottom portion 224 is engaged with the through hole 211 of the needle tube 21, wherein the needle shaft main body 223 is exposed outside the needle tube 21, and the needle shaft cavity 221 is penetrated with the accommodation tube chamber 216. Specifically, the needle shaft bottom 224 extends outward to form a latching portion 222. The peripheral edge of the through hole 211 of the 21 extends into the receiving lumen 216 to form a blocking portion 214. After the needle shaft 22 is placed into the needle tube 21, the needle shaft body is The 223 is exposed to the outside of the needle tube 21 through the through hole 211, and the blocking portion 214 blocks the engaging portion 222 in the accommodating lumen 216 of the needle tube 21, so that the engaging portion 222 abuts against the blocking portion 214. (3) Referring to the twelfth and thirteenth drawings, a spring 23 is provided to pass the upper end of the magazine 23 through the mounting hole 212 and into the needle shaft cavity 221 until the upper end of the magazine 23 abuts the needle shaft cavity 221 the top of. (4) Referring to the thirteenth and fourteenth drawings, the rear cover 213 of the needle tube 21 is closed to the mounting hole 212, so that the rear cover 213 abuts against the bottom of the spring 23, so that the elastic cyanine 23 is placed in the accommodating lumen 216 and the needle. In the shaft cavity, the upper end of the spring 23 abuts against the top of the needle shaft cavity 221, and the lower end of the spring 23 abuts against the back cover 213 at the bottom of the needle tube 21 to form the finished probe connector 2. Specifically, a bent portion 215 is disposed between the tube wall of the needle tube 21 and the rear cover 213. When the rear cover 213 closes the mounting hole 212 of the 201120453, the back cover 213 is bent along the fold line of the bent portion 215 using the jig 90. The rear cover 213 closes the mounting hole and abuts against the bottom of the spring 23. The needle shaft 22 of the probe connector 2 of the present invention may be circular, square or other shape, and accordingly, the needle tube 21 may also be circular, square or other shape. In summary, the bottom of the needle tube 21 of the probe connector 2 of the present invention is provided with a mounting hole 212 and a rear cover 213 matched with the mounting hole 212. On the one hand, the conventional probe connector needle shaft is processed by lathe processing. The disadvantages of the blind hole piece that is produced are that the surface of the needle tube 21 of the invention can be evenly distributed, so that the resistance of the product is low, which solves the problem that the original product of the conventional probe connector is easy to generate heat and has a low service life; The needle tube 21 can be made by a stamping process, so that the probe connector 2 of the present invention can be mass-produced by opening the mold, which reduces the production cost; and on the other hand, the present invention sequentially passes the needle shaft 22 and the spring 23 The insertion into the needle tube 21 and the closing of the back cover 213 are made, which solves the problem of low yield of the products manufactured by the shrinking process in the prior art. Therefore, the probe connector of the present invention and the method of manufacturing the same have the advantages of low resistance, long life, low cost, and high yield. [Simple description of the drawing] The first figure is a plan view of the existing probe connector. The second drawing is a cross-sectional view taken along line A-A in the first figure. Figures 3 through 6 show the manufacturing steps of an existing probe connector. Figure 7 is a perspective view of the back-to-back probe connector of the present invention. Figure 8 is a plan view of the probe connector of the seventh figure. 201120453 The ninth diagram is a cross-sectional view taken along line B-B of the eighth figure. The tenth figure is an exploded perspective view of the probe connector of the seventh figure. The eleventh to fourteenth drawings illustrate the manufacturing steps of the back-to-back probe connector of the present invention. [Main component symbol description] Probe connector 2 Needle 21 Through hole 211 Mounting hole 212 Back cover 213 Blocking portion 214 Bending portion 215 Housing tube 216 Needle shaft 22 Needle shaft cavity 221 Snap portion 222 Needle shaft body 223 needle shaft bottom 224 spring 23 11