A test device for a cochlear implant flexible connector

Abstract

This utility model relates to a testing device for a flexible connector for cochlear implants, comprising a testing base for placing the flexible connector and a testing top cover for pressing the flexible connector; the testing base includes a fixture PCB board, a bottom base board, a middle base board, an upper positioning plate, multiple spring pins, two sets of test pin groups, and studs; the testing top cover has an inner cavity for placing the flexible connector; the bottom base board, middle base board, upper positioning plate, and testing top cover are sequentially and spaced on the studs from bottom to top, the upper positioning plate is provided with a placement groove, the bottom base board is fixedly mounted on the fixture PCB board, one end of the test pin is fixedly connected to the test pin through hole of the bottom base board, and the other end passes through the middle base board and the upper positioning plate and is located in the test pin through hole of the upper positioning plate, the test pin is electrically connected to the bottom base board, and the bottom base board is electrically connected to the fixture PCB board.

Description

Technical Field

[0001] This utility model relates to the field of biomimetic technology in biomedical engineering, specifically to a testing device for a flexible connector for cochlear implants. Background Technology

[0002] In the unit circuit board of a cochlear implant, the flexible connector plays a crucial role in signal and power transmission, serving as a core component connecting the external sound processor and the internal implant. Therefore, how to conduct functional testing on the flexible connector independently is decisive for the overall reliability of the cochlear implant.

[0003] Existing testing methods generally use corresponding male and female connectors for point-to-point connections. Although this method can reproduce the final usage scenario, it has obvious limitations. First, the connector needs to be frequently plugged and unplugged during the production process. This repeated mechanical operation will cause physical wear on the contact parts of the connector, which will seriously affect its service life. Second, since the connector is not completely fixed in the housing during testing, the flexible circuit board is prone to mechanical damage due to external forces, which will affect the overall reliability of the product. In addition, frequent plugging and unplugging operations will significantly reduce production efficiency, which is not conducive to the needs of large-scale production. Utility Model Content

[0004] In view of the deficiencies of the prior art described above, the technical problem to be solved by this utility model is to provide a testing device for a flexible connector for cochlear implants, which can realize rapid testing of the flexible connector and effectively avoid physical wear caused by repeated insertion and removal of the flexible connector.

[0005] To achieve the above objectives, this utility model provides a testing device for a flexible connector for cochlear implants. The flexible connector includes a first connector, a second connector, and a flexible circuit board. The first and second connectors are respectively connected to the flexible circuit board. Multiple contacts are provided at the bottom of both the first and second connectors. The first connector also has two guide holes, and the second connector has a magnet. The testing device includes a testing base for placing the flexible connector and a testing top cover for pressing the flexible connector. The testing base includes a fixture PCB board, a bottom base plate, a middle base plate, an upper positioning plate, multiple spring pins, two sets of testing pin groups, and studs. The testing top cover has... An inner cavity for housing a flexible connector; each of the bottom substrate, middle substrate, upper positioning plate, and test top cover has a stud through hole at its center. The bottom substrate, middle substrate, and upper positioning plate are sequentially fitted onto the studs from bottom to top through the stud through holes. The bottom substrate and middle substrate are fixedly connected to the studs. The upper positioning plate can move up and down relative to the studs through the stud through holes. A placement groove is provided on the side of the upper positioning plate away from the middle substrate. The placement groove includes a first groove for placing a first connector, a second groove for placing a second connector, and a third groove for placing a flexible circuit board. The test top cover is fitted onto the studs through the stud through holes and is positioned on the upper positioning plate. The top protrudes from the test top cover, which also has an opening for avoiding the flexible circuit board; the bottom base plate is fixedly mounted on the fixture PCB board; the bottom base plate and the middle base plate each have corresponding spring pin through holes, and there are multiple spring pin through holes; the upper drag positioning plate has a spring pin groove corresponding to the spring pin through hole of the middle base plate on its side near the middle base plate, and there are multiple spring pin grooves; one end of the spring pin is fixedly connected to the pin groove of the upper drag positioning plate, and the other end passes through the spring pin through hole of the middle base plate and the bottom base plate and protrudes from the bottom base plate, and the spring pin is fixed in the spring pin through hole of the middle base plate and the bottom base plate respectively; the spring pin is provided with a spring. The spring segment has one end fixedly connected to the upper drag positioning plate and the other end fixedly connected to the middle base plate. The test pin group includes multiple test pins. The bottom base plate, the middle base plate, and the upper drag positioning plate are respectively provided with corresponding test pin through hole groups. There are two sets of test pin through hole groups, each including multiple test pin through holes. The two sets of test pin through hole groups on the upper drag positioning plate are respectively opened in the first groove and the second groove. One end of the test pin is fixedly connected to the test pin through hole of the bottom base plate, and the other end passes through the middle base plate and the upper drag positioning plate, and is located in the test pin through hole of the upper drag positioning plate. The test pin is electrically connected to the bottom base plate, and the bottom base plate is electrically connected to the fixture PCB board.

[0006] Furthermore, the inner cavity of the test top cover is provided with two pressure posts that can contact the first connector. The test base also includes guide positioning posts. The end faces of the middle base plate, the upper drag positioning plate, and the pressure posts are respectively provided with corresponding guide positioning through holes. There are two guide positioning posts and two guide positioning through holes. The two guide positioning through holes on the upper drag positioning plate are both opened in the first groove. One end of the guide positioning post passes through the guide positioning through hole through the middle base plate and extends out of the middle base plate. The other end passes through the guide positioning through hole through the upper drag positioning plate and the test top cover and extends out of the test top cover.

[0007] Furthermore, the test base also includes a positioning magnet. The upper positioning plate has a magnet groove on the side near the middle base plate, and the magnet groove is located near the second groove. The positioning magnet is fixedly installed in the magnet groove.

[0008] Furthermore, the bottom substrate and the middle substrate are both made of glass fiber, and the upper drag positioning plate is made of phenolic plastic.

[0009] Furthermore, the bottom substrate is rectangular in shape and has a thickness of 1.5mm-2.5mm; the middle substrate is circular in shape and has a thickness of 1.5mm-2.5mm; and the upper drag positioning plate is circular in shape and has a thickness of 7.7mm-8.5mm.

[0010] Furthermore, a boss is provided on the side of the upper positioning plate away from the middle base plate, the thickness of the boss is set to 0.2mm-0.5mm, the placement groove is formed on the boss, and the test top cover is set on the boss.

[0011] Furthermore, the test top cover is also provided with a first observation through hole for observing the first connector and a second observation through hole for observing the second connector. The first observation through hole is located above the first groove, and the second observation through hole is located above the second groove.

[0012] Furthermore, a tightening nut is also provided on the test top cover, the tightening nut being threadedly connected to the stud and contacting the top of the test top cover.

[0013] Furthermore, the testing device also includes an outer frame, which has an opening at the top and bottom. The testing base is disposed in the inner cavity of the outer frame, and the base plate is fixedly connected to the bottom of the outer frame by fixing screws.

[0014] As described above, the testing device for flexible cochlear implant connectors according to this utility model has the following beneficial effects:

[0015] By setting up a test base and a test cover, flexible connectors can be accurately and quickly placed in the test base, improving the testing speed of flexible connectors. After the test is completed, they can be quickly removed and the next test cycle can be performed. Physically, this effectively avoids physical wear caused by repeated insertion and removal of flexible connectors, achieving a "soft" connection, greatly improving the reliability of electrical connections during testing, reducing the probability of damage during the testing process, and effectively improving production efficiency. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the testing device in this utility model.

[0017] Figure 2 This is a schematic diagram of the test base in this utility model.

[0018] Figure 3 This is a schematic diagram of the test top cover in this utility model.

[0019] Figure 4 This is a schematic diagram of the internal cavity structure of the test top cover in this utility model.

[0020] Figure 5 This is a schematic diagram of the testing device in this utility model.

[0021] Figure 6 This is a schematic diagram of the structure of the bottom substrate of this utility model.

[0022] Figure 7 This is a schematic diagram of the structure of the substrate in this utility model.

[0023] Figure 8 This is a schematic diagram of the upper drag positioning plate in this utility model.

[0024] Figure 9 This is a schematic diagram of the outer frame in this utility model.

[0025] Explanation of icon numbers

[0026] 1. Test base, 101. Fixture PCB board, 102. Bottom base plate, 103. Middle base plate, 104. Upper drag positioning plate, 141. First groove, 142. Second groove, 143. Third groove, 144. Boss, 105. Spring ejector pin, 106. Test ejector pin, 107. Stud, 108. Positioning magnet, 109. Guide positioning post, 2. Test top cover, 201. Pressure post, 202. Clearance opening, 203. First observation through hole, 204. Second observation through hole, 205. Tightening nut, 3. Outer frame, 301. Rectangular section, 311. Accommodating groove, 312. Notched corner, 302. Transition section, 303. Cylindrical section, 331. Closing part, 332. Clearance groove, 4. Guide positioning through hole, 5. Stud through hole, 6. Spring ejector pin through hole, 7. Spring ejector pin groove, 8. Test ejector pin through hole. Detailed Implementation

[0027] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. These embodiments are only used to illustrate this utility model and are not intended to limit it.

[0028] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0031] See Figures 1 to 9This utility model provides a testing device for a flexible connector for cochlear implants. The flexible connector includes a first connector, a second connector, and a flexible circuit board. The first connector and the second connector are respectively connected to the flexible circuit board. Multiple contacts are provided at the bottom of both the first connector and the second connector. The first connector also has two guide holes, and the second connector has a magnet. The testing device includes a testing base 1 for placing the flexible connector and a testing top cover 2 for pressing the flexible connector. The testing base 1 includes a fixture PCB board 101, a base plate 102, and a middle base. The components include a board 103, an upper drag positioning plate 104, multiple spring ejector pins 105, two sets of test ejector pin groups, and studs 107. Specifically, the fixture PCB board 101 is a standard design, allowing the testing device to be connected to other required flexible connector testing fixtures according to actual needs. The test top cover 2 has an inner cavity for placing the flexible connector. Stud through holes 5 are respectively opened at the center of the bottom substrate 102, middle substrate 103, upper drag positioning plate 104, and test top cover 2. The bottom substrate 102, middle substrate 103, and upper drag positioning plate 104 are connected through the stud through holes 5. The bottom substrate 102 and the middle substrate 103 are sequentially and spaced on the studs 107 from bottom to top. The upper positioning plate 104 can move up and down relative to the studs 107 through the stud through-holes 5. The side of the upper positioning plate 104 away from the middle substrate 103 is provided with a placement groove, which includes a first groove 141 for placing the first connector, a second groove 142 for placing the second connector, and a third groove 143 for placing the flexible circuit board. The test top cover 2 is fitted onto the studs 107 through the stud through-holes 5 and is set on the upper positioning plate 107. 4. The top end of the stud 107 extends out of the test top cover 2. The test top cover 2 is also provided with a clearance opening 202 for avoiding the flexible circuit board. Specifically, the clearance opening 202 is located above the third groove 143. The bottom base plate 102 is fixedly mounted on the fixture PCB board 101. Preferably, the test base 1 also includes a connecting round plate. The fixture PCB board 101 has a connecting groove on the side near the bottom base plate 102. The connecting round plate is disposed in the connecting groove and can contact the bottom base plate 102. The bottom end of the stud 107 extends out of the bottom base plate 102 and is fixedly connected to the connecting round plate.Both the base plate 102 and the middle plate 103 have corresponding multiple spring pin through holes 6. The upper positioning plate 104, near the middle plate 103, has a spring pin groove 7 corresponding to the spring pin through holes 6 of the middle plate 103. Multiple spring pin grooves 7 are provided; that is, the centers of the spring pin through holes 6 of the base plate 102, the middle plate 103, and the upper positioning plate 104 are all located on the same vertical line. One end of the spring pin 105 is fixedly connected to the pin groove of the upper positioning plate 104, and the other end passes through the spring pin through holes 6 of the middle plate 103 and the base plate 102, and extends out of the groove. A base plate 102 is provided, and spring pins 105 are fixed in the middle base plate 103 and the spring pin through holes 6 of the base plate 102. Each spring pin 105 has a spring segment, one end of which is fixedly connected to the upper drag positioning plate 104, and the other end is fixedly connected to the middle base plate 103. Preferably, eight spring pins 105 are provided, and eight spring pin through holes 6 in the base plate 102, eight spring pin through holes 6 in the middle base plate 103, and eight spring pin grooves 7 in the upper drag positioning plate 104 are provided. Furthermore, the spring pin through holes 6 in the base plate 102, eight spring pin through holes 6 in the middle base plate 103, and eight spring pin grooves 7 in the upper drag positioning plate 104 are all uniformly arranged along the outer periphery of a circle centered on the stud 107. The test pin group includes multiple test pins 106. Preferably, the test pin group includes four test pins 106, which are arranged in a square, that is, the four test pins 106 are respectively located at the four vertices of the square. Corresponding test pin through-hole groups are respectively opened on the bottom substrate 102, the middle substrate 103, and the upper drag positioning plate 104. There are two sets of test pin through-hole groups, each including multiple test pin through-holes 7. That is, the center of the test pin through-hole 7 on the bottom substrate 102, the center of the test pin through-hole 7 on the middle substrate 103, and the center of the test pin through-hole 7 on the upper drag positioning plate 104 are all located on the same vertical line. Preferably, the first connector and the second connector are connected in a single vertical line. The test pin 106 is provided with four contacts, and the test pin through-hole group includes four test pin through-holes 7. Two sets of test pin through-hole groups on the upper drag positioning plate 104 are respectively opened in the first groove 141 and the second groove 142. One end of the test pin 106 is fixedly connected to the test pin through-hole 7 of the bottom substrate 102, and the other end passes through the middle substrate 103 and the upper drag positioning plate 104, and is located in the test pin through-hole 7 of the upper drag positioning plate 104. The test pin 106 is electrically connected to the bottom substrate 102, and the bottom substrate 102 is electrically connected to the fixture PCB board 101. Preferably, the test pin 106 is also electrically connected to the middle substrate 103. The spring pin 105 is electrically connected to the fixture PCB board 101, the bottom substrate 102, and the middle substrate 103 respectively.

[0032] The basic working principle of the testing device for a flexible cochlear implant connector involved in this utility model is as follows: By setting a test base 1 and a test top cover 2, during use, the flexible connector, namely the first connector, the second connector, and the flexible circuit board, are placed in the first groove 141, the second groove 142, and the third groove 143 of the upper positioning plate 104, respectively. The test top cover 2 is placed on the upper positioning plate 104 and pressed down to move it downward along the stud 107. The test top cover 2 is pressed tightly on the upper positioning plate 104 and drives the upper positioning plate 104 to move downward along the stud 107. At this time, by setting a spring pin 105, since the distance between the upper positioning plate 104 and the middle base plate 103 is shortened (the shortening distance is fixed at 1mm-2mm), the spring segment of the spring pin 105 is in an elastic energy storage state, and the test pin 106 is exposed on the upper positioning plate 104. Through hole 7, two sets of test pins are provided, allowing them to contact the contacts of the first connector and the second connector respectively. Simultaneously, by setting the base plate 102 and the fixture PCB board 101, the flexible connector can establish an electrical connection with the fixture PCB board 101 when it contacts the test pin 106, thus allowing the electrical performance of the flexible connector to be tested via the fixture PCB board 101. At the end of the test, pressing the test top cover 2 stops, and under the elastic force of the spring segment, the spring segment resets, driving the upper drag positioning plate 104 to move upwards along the stud 107 to reset. At this time, the test pin 106 re-enters the test pin through hole 7 of the upper drag positioning plate 104, and the flexible connector disconnects from the fixture PCB board 101. During the test, the avoidance opening 202 prevents interference between the flexible connecting plate and the test top cover 2, thus avoiding damage to the flexible connecting plate.

[0033] See Figures 1 to 9 The present invention will be further described below with reference to a specific embodiment:

[0034] In this embodiment, see Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 7 , Figure 8As a preferred design, the inner cavity of the test top cover 2 is provided with two pressure posts 201 that can contact the first connector. The test base 1 also includes guide positioning posts 109. The end faces of the middle base plate 103, the upper drag positioning plate 104, and the pressure posts 201 are respectively provided with corresponding guide positioning through holes 4. That is, the guide positioning through holes 4 on the middle base plate 103 and the guide positioning through holes 4 on the upper drag positioning plate 104 are all located on the same vertical line. There are two guide positioning posts 109 and two guide positioning through holes 4. The two guide positioning through holes 4 on the upper drag positioning plate 104 are both opened in the first recess. One end of the guide positioning post 109 is guided by a guide positioning post 109. The through hole 4 passes through the middle substrate 103 and extends out of the middle substrate 103. The other end passes through the guide positioning through hole 4 through the upper drag positioning plate 104 and the test top cover 2 and extends out of the test top cover 2. In use, the first connector is fitted onto the guide positioning post 109 through the guide hole on the first connector, thereby ensuring that the first connector can be quickly and accurately placed in the first groove 141, reducing manual adjustment time. Moreover, multiple disassembly and assembly will not affect the positioning accuracy of the guide positioning post 109, which is suitable for occasions where multiple flexible connectors are frequently tested. At the same time, by setting the pressure post 201, the pressure post 201 contacts the first connector, which can further compress the flexible connector.

[0035] In this embodiment, see Figure 1 As a preferred design, the test base 1 also includes a positioning magnet 108. A magnet groove is provided on the side of the upper positioning plate 104 near the middle base plate 103, and the magnet groove is located near the second groove 142. The positioning magnet 108 is fixedly disposed in the magnet groove. Preferably, there are two positioning magnets 108 and two magnet grooves. In use, the second connector can be quickly and accurately placed in the second groove 142 without direct contact through the magnetic force between the magnet on the second connector and the magnet on the upper positioning plate 104, avoiding mechanical wear. This is suitable for occasions where multiple flexible connectors are frequently tested.

[0036] In this embodiment, see Figure 1 As a preferred design, the bottom substrate 102 and the middle substrate 103 are both made of glass fiber, which has good impact resistance and electrical insulation. The upper positioning plate 104 is made of phenolic plastic, which has high rigidity and insulation.

[0037] In this embodiment, see Figure 2 , Figure 6 , Figure 7 , Figure 8As a preferred design, the bottom substrate 102 is rectangular in shape, preferably square in shape, and the thickness of the bottom substrate 102 is 1.5mm-2.5mm. The middle substrate 103 is circular in shape and the thickness of the middle substrate 103 is 1.5mm-2.5mm. The upper drag positioning plate 104 is also circular in shape and the thickness of the upper drag positioning plate 104 is 7.7mm-8.5mm.

[0038] In this embodiment, see Figure 2 , Figure 8 As a preferred design, the upper positioning plate 104 is provided with a boss 144 on the side away from the middle base plate 103. The thickness of the boss 144 is set to 0.2mm-0.5mm. A placement groove is opened on the boss 144, and the test top cover 2 is provided on the boss 144.

[0039] In this embodiment, see Figure 3 , Figure 4 As a preferred design, the test top cover 2 is also provided with a first observation through hole 203 for observing the first connector and a second observation through hole 204 for observing the second connector. The first observation through hole 203 is located above the first groove 141, and the second observation through hole 204 is located above the second groove 142. By setting the first observation through hole 203 and the second observation through hole 204, it is convenient to observe whether the flexible connector is placed in place.

[0040] In this embodiment, see Figure 1 , Figure 3 , Figure 5 As a preferred design, the test top cover 2 is also provided with a tightening nut 205. The tightening nut 205 is threadedly connected to the stud 107 and contacts the top of the test top cover 2. When in use, tightening the tightening nut 205 will drive the test top cover 2 to move downward along the stud 107, which is convenient for adjustment.

[0041] In this embodiment, see Figure 5 , Figure 9As a preferred design, the testing device also includes an outer frame 3, which has an open top and bottom structure. The test base 1 is disposed in the inner cavity of the outer frame 3. The base plate 102 is fixedly connected to the bottom of the outer frame 3 by fixing screws. Preferably, the outer frame 3 includes a rectangular section 301, a cylindrical section 303, and a transition section 302. The bottom of the rectangular section 301 has a receiving groove 311 for accommodating the base plate 102. The base plate 102 is fixedly connected to the receiving groove 311 by fixing screws. The rectangular segment 301 has a notch 312 on its outer periphery for identifying the placement direction; the cylindrical segment 303 has a constriction portion 331, the inner edge of which contacts the outer edge of the boss 144 of the upper drag positioning plate 104, and the constriction portion 331 also has a relief groove 332, which is located below the third groove 143 and corresponds to the relief opening 202 of the test top cover 2. The rectangular segment 301 and the cylindrical segment 303 are connected by a transition section 302.

[0042] As can be seen from the above, the testing device for flexible connectors of cochlear implants of this utility model has the following beneficial effects:

[0043] By setting up the test base 1 and the test top cover 2, the flexible connector can be accurately and quickly placed in the test base 1, improving the testing speed of the flexible connector. After the test is completed, it can be quickly removed and the next test cycle can be performed. Physically, it can effectively avoid physical wear caused by repeated insertion and removal of the flexible connector, realize the "soft" connection of the contact, greatly improve the reliability of the electrical connection of the test, reduce the probability of damage during the test process, and effectively improve production efficiency.

[0044] In summary, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0045] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A testing device for a flexible connector for a cochlear implant, the flexible connector comprising a first connector, a second connector, and a flexible circuit board, the first connector and the second connector being connected to the flexible circuit board respectively, the bottom of the first connector and the second connector being provided with multiple contacts, the first connector also having two guide holes, and the second connector being provided with a magnet, characterized in that: The testing device includes a test base (1) for placing the flexible connector and a test top cover (2) for pressing the flexible connector; the test base (1) includes a fixture PCB board (101), a bottom substrate (102), a middle substrate (103), an upper drag positioning plate (104), multiple spring ejector pins (105), two sets of test ejector pin sets, and studs (107); the test top cover (2) has an inner cavity for placing the flexible connector; stud through holes (5) are respectively opened at the center of the bottom substrate (102), the middle substrate (103), the upper drag positioning plate (104), and the test top cover (2); The upper positioning plate (104) is sequentially fitted onto the studs (107) from bottom to top through the stud through holes (5). The bottom base plate (102) and the middle base plate (103) are both fixedly connected to the studs (107). The upper positioning plate (104) can move up and down relative to the studs (107) through the stud through holes (5). The side of the upper positioning plate (104) away from the middle base plate (103) is provided with a placement groove. The placement groove includes a first groove (141) for placing the first connector, a second groove (142) for placing the second connector, and a third groove (143) for placing the flexible circuit board. The test top cover ( 2) The stud (5) is fitted onto the stud (107) through the stud through hole (5) and set on the upper drag positioning plate (104). The top end of the stud (107) extends out of the test top cover (2). The test top cover (2) is also provided with a clearance opening (202) for avoiding the flexible circuit board. The bottom base plate (102) is fixedly set on the fixture PCB board (101). The bottom base plate (102) and the middle base plate (103) are respectively provided with corresponding spring pin through holes (6). There are multiple spring pin through holes (6). The side of the upper drag positioning plate (104) close to the middle base plate (103) is provided with spring pins that correspond to the middle base plate (103). The through hole (6) has a corresponding spring pin groove (7). There are multiple spring pin grooves (7). One end of the spring pin (105) is fixedly connected to the pin groove of the upper drag positioning plate (104), and the other end passes through the spring pin through hole (6) of the middle base plate (103) and the bottom base plate (102) and extends out of the bottom base plate (102). The spring pin (105) is fixed in the spring pin through hole (6) of the middle base plate (103) and the bottom base plate (102) respectively. The spring pin (105) is provided with a spring segment. One end of the spring segment is fixedly connected to the upper drag positioning plate (104), and the other end is fixedly connected to the middle base plate (103).The test pin group includes multiple test pins (106). Corresponding test pin through-hole groups are respectively opened on the bottom substrate (102), middle substrate (103), and upper drag positioning plate (104). Two sets of test pin through-hole groups are provided, each including multiple test pin through-holes (7). The two sets of test pin through-hole groups on the upper drag positioning plate (104) are respectively opened in the first groove (141) and the second groove (142). One end of the test pin (106) is fixedly connected to the test pin through-hole (7) of the bottom substrate (102), and the other end passes through the middle substrate (103) and the upper drag positioning plate (104), and is located in the test pin through-hole (7) of the upper drag positioning plate (104). The test pin (106) is electrically connected to the bottom substrate (102), and the bottom substrate (102) is electrically connected to the fixture PCB board (101).

2. The testing device for a flexible cochlear implant connector according to claim 1, characterized in that: The inner cavity of the test top cover (2) is provided with two pressure posts (201) that can contact the first connector. The test base (1) also includes a guide positioning post (109). The end faces of the middle base plate (103), the upper drag positioning plate (104), and the pressure posts (201) are respectively provided with corresponding guide positioning through holes (4). There are two guide positioning posts (109) and two guide positioning through holes (4). The two guide positioning through holes (4) on the upper drag positioning plate (104) are both opened in the first groove. One end of the guide positioning post (109) passes through the middle base plate (103) through the guide positioning through hole (4) and extends out of the middle base plate (103). The other end passes through the upper drag positioning plate (104) and the test top cover (2) through the guide positioning through hole (4) and extends out of the test top cover (2).

3. The testing device for a flexible cochlear implant connector according to claim 2, characterized in that: The test base (1) also includes a positioning magnet (108). The upper drag positioning plate (104) has a magnet groove on the side near the middle base plate (103), and the magnet groove is located near the second groove (142). The positioning magnet (108) is fixedly installed in the magnet groove.

4. The testing device for a flexible cochlear implant connector according to claim 3, characterized in that: The bottom substrate (102) and the middle substrate (103) are both made of glass fiber, and the upper drag positioning plate (104) is made of phenolic plastic.

5. The testing device for a flexible cochlear implant connector according to claim 4, characterized in that: The bottom substrate (102) is rectangular in shape and has a thickness of 1.5mm-2.5mm. The middle substrate (103) is circular in shape and has a thickness of 1.5mm-2.5mm. The upper drag positioning plate (104) is also circular in shape and has a thickness of 7.7mm-8.5mm.

6. The testing device for a flexible cochlear implant connector according to claim 5, characterized in that: The upper positioning plate (104) has a boss (144) on the side away from the middle base plate (103). The thickness of the boss (144) is set to 0.2mm-0.5mm. The placement groove is opened on the boss (144). The test top cover (2) is set on the boss (144).

7. The testing device for a flexible cochlear implant connector according to claim 6, characterized in that: The test top cover (2) is also provided with a first observation through hole (203) for observing the first connector and a second observation through hole (204) for observing the second connector. The first observation through hole (203) is located above the first groove (141), and the second observation through hole (204) is located above the second groove (142).

8. The testing device for a flexible cochlear implant connector according to claim 7, characterized in that: The test cover (2) is also provided with a tightening nut (205), which is threadedly connected to the stud (107) and contacts the top of the test cover (2).

9. The testing device for a flexible cochlear implant connector according to claim 8, characterized in that: The testing device also includes an outer frame (3), which has an open structure at the top and bottom. The test base (1) is set in the inner cavity of the outer frame (3), and the base plate (102) is fixedly connected to the bottom of the outer frame (3) by fixing screws.

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