Board end connector and biosensor device comprising same

Abstract

The invention discloses a board end connector and a biosensor device comprising the same, the board end connector comprises an insulator and a plurality of conductive parts fixed on the insulator, each conductive part is provided with a first elastic arm and a second elastic arm which are mutually conducted and are respectively used for being conductively connected with two electronic devices; a first guide connection part at the upper end of the first elastic arm is exposed at the upper end of the insulator; the insulator is provided with a groove used for assembling or accommodating an electronic device, and a second guide connection part at the upper end of the second elastic arm is exposed in the groove. According to the invention, the conductive parts do not need to be welded and conducted with the two electronic devices through welding pins, but are connected with the two electronic devices in an elastic pressing manner, so that the assembly is simple and easy, and the conductive parts are not influenced by space limitation like a welding conduction manner, and meanwhile, even if the number of the conductive parts is multiple, the cost is low. In addition, a single electronic device can be connected with the first conducting parts or the second conducting parts in all the conducting pieces in a conducting mode at a time, namely single operation is achieved, and operation is easy and convenient.

Description

Technical field:

[0001] The present invention relates to the technical field of connectors, and in particular to a board-end connector and a biosensor device comprising the board-end connector. Background technology:

[0002] With the development of science and technology, various easy-to-use medical testing instruments have been continuously designed and produced. The blood glucose meter is an instrument for detecting blood glucose in human blood. It uses the electrochemical method and the principle of detecting the current signal generated during the reaction process to react to the blood glucose value. The electrons generated by the reaction of enzymes and glucose pass through the current counting facility, read the number of electrons, and then convert it into a glucose concentration reading.

[0003] A small portable blood glucose tester (i.e., a dynamic blood glucose meter) has appeared on the market. It is a wearable tester that can continuously collect blood glucose data from the human body. It is small in size and basically painless, and is widely used in glucose testing for diabetic patients. The dynamic blood glucose meter includes a host and an implantable sensor. The sensor implanted under the skin converts the blood glucose content in the blood into an electrical signal, and the host converts, analyzes, stores, and outputs the electrical signal generated by the sensor. The host can also transmit the data to terminals such as mobile phone APPs, and the mobile phone APPs display dynamic blood glucose values, blood glucose change curves and other related data.

[0004] like Figure 1 As shown, a portable blood glucose detection instrument 100 includes a housing 103, a sensor 101, a PCB board (not shown) and other components. The PCB board is installed in the housing 103, and the sensor 101 is installed in a slot 104 inside the housing 103. Since the portable blood glucose detection instrument is small in size and its internal space is limited, the conduction method of the sensor 101 is often to connect several semiconductors 102 in series with the sensor 101 to achieve communication, and then connect the PCB board through the semiconductor 102 to make the sensor 101 conductive with the PCB board; the semiconductor 102 is small in size, and multiple operations are required when several semiconductors 102 are installed on the PCB board, which causes inconvenience. At the same time, when several semiconductors 102 are connected in series with the sensor 101, welding is also required, but the welding operation is inconvenient due to space limitations.

[0005] In view of this, the inventor proposes the following technical solution. Summary of the invention:

[0006] The object of the present invention is to overcome the deficiencies of the prior art and to provide a board-end connector and a biosensor device including the board-end connector.

[0007] In order to solve the above technical problems, the present invention adopts the following first technical solution: the board-end connector includes an insulator and a plurality of conductive parts fixed on the insulator, each conductive part has a first elastic arm and a second elastic arm which are mutually conductive and respectively used to connect with two electronic devices, and the first conductive part at the upper end of the first elastic arm is exposed at the upper end of the insulator; the insulator is provided with a groove for assembling or accommodating an electronic device, and the second conductive part at the upper end of the second elastic arm is exposed in the groove.

[0008] Furthermore, in the above technical solution, the first elastic arm and the second elastic arm are connected through the main body, and the height of the top surface of the first conductive portion is higher than the height of the top surface of the second conductive portion.

[0009] Furthermore, in the above technical solution, the number of the second elastic arms is two, which are distributed in parallel, and the roots of the two second elastic arms are connected to a bending portion, and the bending portion is integrally connected to the main body; the conductive member has no welding feet.

[0010] Furthermore, in the above technical solution, the insulator is fixed integrally with the conductive member by means of in-mold injection molding.

[0011] Furthermore, in the above technical solution, the conductive part is fixed to the insulator by means of insertion, wherein the insulator is provided with a first window and a second window distributed at intervals, the second window passes through the groove, and the insulator is also provided with a positioning hole; a positioning plate is provided on the conductive part, the conductive part is fixed by embedding the positioning plate and the positioning hole to be assembled on the insulator, and the first conductive connection portion at the upper end of the first elastic arm and the second conductive connection portion at the upper end of the second elastic arm pass through the first window and the second window respectively.

[0012] Furthermore, in the above technical solution, arc-shaped clamping portions are formed on both sides of the end of the positioning piece extending along its width direction, and a convex bulge is stamped in the middle of the end of the positioning piece protruding along its thickness direction, and the arc-shaped clamping portion is clamped and positioned with the positioning hole, and the convex bulge is pressed and positioned against the inner wall of the positioning hole.

[0013] Furthermore, in the above technical solution, the insulator includes a base and a cover body fixedly mounted on the base, the base is provided with the first window and the second window, the cover body is provided with the groove, and the cover body is also provided with a third window corresponding to the second window and connected to the groove; the first conductive connection portion is exposed at the upper end of the base after passing through the first window, and the second conductive connection portion is exposed in the groove after passing through the second window and the third window.

[0014] Furthermore, in the above technical solution, the base is also provided with an installation groove connected to the second window, and the bottom of the installation groove is also provided with a plurality of card slots downwardly, and the inner wall of the card slot is formed with a card hook; the lower end of the cover body is provided with a plurality of undercuts, the cover body is installed in the installation groove, and the undercuts are embedded in the card slot and fixed with the card hook.

[0015] Furthermore, in the above technical solution, the base is also provided with an anti-foolproof groove on the inner wall of the installation groove, and the outer side of the cover body is provided with an anti-foolproof protrusion, which is pressed into the anti-foolproof groove; a plurality of positioning grooves are provided on both sides of the base, and an anti-foolproof positioning portion protruding outward is also provided on the outer side of the base.

[0016] In order to solve the above technical problems, the present invention adopts the following second technical solution: the biosensor device includes the above-mentioned board-end connector, a shell, and a PCB board and a sensor installed in the shell and serving as two electronic devices respectively. The board-end connector is fixed in the shell, and the sensor is pressed from top to bottom in the groove of the board-end connector, and the first conductive portion at the lower end of the sensor is pressed and contacted with the second conductive portion at the upper end of the second elastic arm. The PCB board is pressed on the board-end connector and the sensor from top to bottom, and the third conductive portion of the PCB board is pressed and contacted with the first conductive portion at the upper end of the first elastic arm, and the fourth conductive portion of the PCB board is in contact with the second conductive portion at the upper end of the sensor.

[0017] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0018] 1. The board-end connector of the present invention sets the first elastic arm and the second elastic arm of the conductive member at the same end, and the first conductive connection portion at the upper end of the first elastic arm and the second conductive connection portion at the upper end of the second elastic arm are both exposed at the same end of the insulator, and are respectively used to elastically press against two electronic devices to achieve conductive connection, that is, the conductive member of the present invention does not need to be welded and connected with any one of the two electronic devices by welding feet, but is connected with the two electronic devices by elastic pressing, which is easy to assemble, and is not affected by space limitations like welding connection. At the same time, even if there are multiple conductive members, it can make a single electronic device be connected with the first conductive connection portion or the second conductive connection portion of all the conductive members at one time, that is, a single operation is sufficient, and the operation is simple and convenient. In addition, after one of the electronic devices can be assembled or accommodated in the groove on the insulator, it can limit the position of the electronic device to ensure that the second conductive connection portion of the second elastic arm and the electronic device achieve stable elastic conductive connection, so that when another electronic device is pressed on the electronic device, the two are not easily misaligned, thereby enabling the two electronic devices to form a stable conductive connection.

[0019] 2. In the biosensor device, the board-end connector, the sensor, and the PCB board are all connected by contact, and no welding is required, eliminating the welding link. At the same time, there will be no problem of inconvenience in welding due to space limitations. At the same time, the first conductive part of the first elastic arm and the second conductive part of the second elastic arm, which are mutually conductive, in the board-end connector are elastically pressed against the third conductive part at the lower end of the PCB board and the first conductive part at the lower end of the sensor, respectively, which is easy to disassemble and assemble. Even if there are multiple conductive parts, the PCB board can be connected to the first conductive part of all the conductive parts at one time, and the sensor can be connected to the second conductive part of all the conductive parts at one time, that is, a single operation is sufficient, and the operation is simple and convenient. Description of the drawings:

[0020] Figure 1 It is a diagram of the internal structure of a portable blood sugar testing instrument in the prior art;

[0021] Figure 2 is a three-dimensional diagram of the board-end connector of the present invention;

[0022] Figure 3 is a stereoscopic diagram of the board-end connector of the present invention from another perspective;

[0023] Figure 4 is a three-dimensional exploded view of the board-end connector of the present invention;

[0024] Figure 5 is a three-dimensional diagram of a conductive member of a board-end connector in the present invention;

[0025] Figure 6 It is a three-dimensional diagram of the conductive member of the board-end connector in the present invention from another perspective;

[0026] Figure 7 is a three-dimensional diagram of the base of the board-end connector in the present invention;

[0027] Figure 8 is a three-dimensional diagram of the cover of the board-end connector in the present invention;

[0028] Fig. 9 is a three-dimensional diagram of a sensor of a biosensor device of the present invention;

[0029] Fig.10 is an assembly diagram of a sensor and a board-end connector of a biosensor device of the present invention;

[0030] Fig.11 is an assembly diagram of the biosensor device of the present invention.

[0031] Description of reference numerals:

[0032] Portable blood glucose tester 100 Sensor 101 Semiconductor 102

[0033] Shell 103 Tank 104 Insulator 2

[0034] First window 201 Second window 202 Positioning hole 203

[0035] Third window 204 Base 21 Mounting slot 211

[0036] Card slot 212 Card hook 213 Anti-mistake slot 214

[0037] Positioning groove 215 Anti-fool positioning portion 216 Cover body 22

[0038] Groove 221 Undercut 222 Anti-fouling protrusion 223

[0039] Conductive member 3 First elastic arm 31 First conductive portion 311

[0040] Second elastic arm 32 Second connecting portion 321 Main body portion 33

[0041] Bending portion 34 Positioning piece 35 Arc-shaped clamping portion 351

[0042] Bump 352 PCB board 4 Third conductive part 41

[0043] Fourth conductive part 42 Sensor 5 First conductive part 51

[0044] The second conductive portion 52 Specific implementation method:

[0045] The present invention is further described below in conjunction with specific embodiments and drawings.

[0046] See Figure 2-8 As shown, a board-end connector is used to connect with two electronic devices to make the two electronic devices conductive.

[0047] The board-end connector includes an insulator 2 and a plurality of conductive members 3 fixed on the insulator 2, each conductive member 3 having a first elastic arm 31 and a second elastic arm 32 which are mutually conductive and respectively used to connect with two electronic devices, and a first conductive connection portion 311 at the upper end of the first elastic arm 31 is exposed at the upper end of the insulator 2; a groove 221 for assembling or accommodating an electronic device is provided on the insulator 2, and a second conductive connection portion 321 at the upper end of the second elastic arm 32 is exposed in the groove 221.

[0048] The board-end connector of the present invention sets the first elastic arm 31 and the second elastic arm 32 of the conductive member 3 at the same end, and the first conductive connection portion 311 at the upper end of the first elastic arm 31 and the second conductive connection portion 321 at the upper end of the second elastic arm 32 are both exposed at the same end of the insulator 2, and are respectively used to elastically press against the two electronic devices to achieve conductive connection. That is, the conductive member 3 of the present invention does not need to be welded and connected with any one of the two electronic devices by welding feet, but is conductively connected with the two electronic devices by elastic pressing. It is easy to assemble and is not affected by space limitations like welding conduction. At the same time, even if there are multiple conductive members 3, a single electronic device can be conductively connected with the first conductive connection portion 311 or the second conductive connection portion 321 of all the conductive members 3 at one time, that is, a single operation is sufficient, and the operation is simple and convenient. In addition, after one of the electronic devices can be assembled or accommodated in the groove 221 on the insulator 2, it can limit the electronic device to ensure that the second conductive portion 321 of the second elastic arm 32 and the electronic device achieve stable elastic conductive connection, so that when another electronic device is pressed on the electronic device, the two are not easily misaligned, thereby enabling the two electronic devices to form a stable conductive connection.

[0049] In this embodiment, the two electronic devices are respectively a PCB board 4 and a sensor 5, wherein the sensor 5 is assembled or accommodated in the groove 221 on the insulator 2, and is elastically in contact and conductively connected with the second conductive portion 321 of the second elastic arm 32, the PCB board 4 is pressed on the insulator 2 and the sensor 5, and the PCB board 4 is elastically in contact and conductively connected with the first conductive portion 311 at the upper end of the first elastic arm 31, wherein the PCB board 4 applies pressure to the sensor 5, thereby making the second conductive portion 321 of the second elastic arm 32 and the sensor 5 more stably in contact, and the conductive effect is better. Among them, the PCB board 4 and the sensor 5 can also be in contact and conductive, of course, they can also not form contact and conductive, which is selected according to actual requirements.

[0050] The specific structure of the conductive member 3 is:

[0051] The conductive member 3 includes a main body 33, a first elastic arm 31 and a second elastic arm 32 bent and formed in the middle of the main body 33, and two positioning pieces 35 bent and formed at both ends of the main body 33, respectively. The first elastic arm 31, the second elastic arm 32 and the positioning piece 35 are all exposed at the upper end of the main body 33, that is, the conductive member 3 has no welding feet. In other words, the first elastic arm 31 and the second elastic arm 32 are connected through the main body 33, so that the first elastic arm 31 and the second elastic arm 32 are mutually conductive.

[0052] The first conductive portion 311 is bent and formed at the upper end of the first elastic arm 31, and the upper end surface of the first conductive portion 311 is an arc-shaped surface, which is a raised structure, so as to facilitate conductive connection. Similarly, the second conductive portion 321 is bent and formed at the upper end of the second elastic arm 32, and the upper end surface of the second conductive portion 321 is an arc-shaped surface, which is a raised structure, so as to facilitate conductive connection. Among them, the height of the top surface of the first conductive portion 311 is higher than the height of the top surface of the second conductive portion 321, so that the first conductive portion 311 protrudes outside the upper end of the insulator 2, and the second conductive portion 321 is exposed in the groove 221, so that the length of the second elastic arm 32 does not need to be longer than the length of the first elastic arm 31.

[0053] In order to improve the conduction effect, the number of the second elastic arms 32 described in the present invention is two, and they are arranged in parallel. That is to say, the present invention uses two second elastic arms 32 to conduct with the electronic device (i.e., the sensor 5) at the same position, which has better conduction reliability and better conduction effect, and avoids the phenomenon of misalignment and failure to conduct. In terms of structure, the roots of the two second elastic arms 32 are connected to a bending portion 34, and the bending portion 34 is integrally connected to the main body 33, which can increase the elastic deformation capacity of the two second elastic arms 32, thereby further improving the conduction performance of the conductive member 3 and the electronic device (i.e., the sensor 5).

[0054] The assembly structure of the insulator 2 and the conductive member 3 includes at least the following two types:

[0055] The first assembly structure is that the insulator 2 is fixed integrally with the conductive member 3 by in-mold injection molding. The assembly is simple, efficient, and the product structure is stable, but it is not convenient to replace parts and the production cost is relatively high.

[0056] The second assembly structure is that the conductive member 3 is fixed to the insulator 2 by plug-in. Its assembly efficiency is lower than that of the first method, but it is convenient for replacing parts and has a relatively low production cost.

[0057] As a preferred embodiment, this embodiment adopts the second assembly structure mentioned above.

[0058] Specifically, the insulator 2 is provided with a first window 201 and a second window 202 distributed at intervals, the second window 202 passes through the groove 221, and the insulator 2 is also provided with a positioning hole 203; a positioning plate 35 is provided on the conductive member 3, and the conductive member 3 is inlaid and fixed with the positioning hole 203 through the positioning plate 35 to be assembled on the insulator 2, and the first conductive portion 311 at the upper end of the first elastic arm 31 and the second conductive portion 321 at the upper end of the second elastic arm 32 pass through the first window 201 and the second window 202 respectively, that is, the first conductive portion 311 at the upper end of the first elastic arm 31 passes through the first window 201 and is exposed outside the upper end surface of the insulator 2, and the second conductive portion 321 at the upper end of the second elastic arm 32 passes through the second window 202 and extends into the groove 221.

[0059] The specific assembly structure of the positioning piece 35 and the positioning hole 203 is as follows: arc-shaped holding parts 351 are formed on both sides of the end of the positioning piece 35 along its width direction, and a convex bump 352 protruding along its thickness direction is stamped in the middle of the end of the positioning piece 35. The arc-shaped holding part 351 is held and positioned with the positioning hole 203 to achieve positioning in one direction, and the convex bump 352 is pressed and positioned against the inner wall of the positioning hole 203 to achieve the effect of tensioning and positioning in the other direction, thereby ensuring that the positioning piece 35 and the positioning hole 203 form a stable embedded fixed assembly, so that the conductive member 3 is stably inserted and fixed on the insulator 2. The arc-shaped holding part 351 is arc-shaped, and it can be inserted into the positioning hole 203 more smoothly.

[0060] The structure of the insulator 2 mentioned above may be an integrated structure, that is, the first window 201 , the second window 202 and the groove 221 are all disposed on the insulator 2 .

[0061] The structure of the above-mentioned insulator 2 can also be a split structure, and the specific structure is:

[0062] The insulator 2 is a two-piece structure, which includes a base 21 and a cover 22 fixedly mounted on the base 21 , and an assembly structure is formed between the base 21 and the cover 22 .

[0063] The base 21 is provided with the first window 201 and the second window 202, the cover body 22 is provided with the groove 221, and the cover body 22 is also provided with a third window 204 corresponding to the second window 202 and connected to the groove 221; the first conductive portion 311 passes through the first window 201 and is exposed at the upper end of the base 21, and the second conductive portion 321 passes through the second window 202 and the third window 204 and is exposed in the groove 221, that is, the second conductive portion 321 is exposed in the cover body 22, and the cover body 22 is used to be assembled with one of the electronic devices (i.e., the sensor 5).

[0064] Since the cover 22 is relatively detachable, a cover 22 with a suitable groove 221 can be selected and installed on the base 21 according to the size of the electronic device (i.e., sensor 5) to meet the needs of pairing with electronic devices (i.e., sensors 5) of different models or sizes.

[0065] The base 21 is also provided with an installation groove 211 connected to the second window 202, and the bottom of the installation groove 211 is further downwardly provided with a plurality of slots 212, and the inner wall of the slot 212 is formed with a hook 213; the lower end of the cover body 22 is provided with a plurality of undercuts 222, the cover body 22 is installed in the installation groove 211, and the undercut 222 is embedded in the slot 212 and fixed with the hook 213, thereby ensuring that the cover body 22 is stably installed on the base 21.

[0066] The base 21 is also provided with an anti-foolproof groove 214 on the inner wall of the installation groove 211, and the outer side of the cover body 22 is provided with an anti-foolproof protrusion 223, and the anti-foolproof protrusion 223 is pressed into the anti-foolproof groove 214, so as to avoid the cover body 22 being installed in reverse relative to the base 21 and being unable to install the cover body 22 into the base 21 during assembly, thereby achieving an anti-foolproof effect. At the same time, after the anti-foolproof protrusion 223 is pressed into the anti-foolproof groove 214, it also serves the purpose of limiting or positioning, so that the assembly of the cover body 22 and the base 21 is more stable.

[0067] A plurality of positioning grooves 215 are provided on both sides of the base 21, and the positioning grooves 215 are used to be embedded and positioned with the positioning columns in the shell of the biosensor device to ensure that the board-end connector is stably installed in the shell. In addition, an outwardly protruding anti-foolproof positioning portion 216 is provided on the outer side of the base 21. The design of the anti-foolproof positioning portion 216 can prevent the board-end connector from being installed upside down relative to the shell, thereby achieving a good anti-foolproof effect.

[0068] To summarize, the board-end connector of the present invention sets the first elastic arm 31 and the second elastic arm 32 of the conductive member 3 at the same end, and the first conductive connection portion 311 at the upper end of the first elastic arm 31 and the second conductive connection portion 321 at the upper end of the second elastic arm 32 are both exposed at the same end of the insulator 2, and are respectively used to elastically press against the two electronic devices to achieve conductive connection, that is, the conductive member 3 of the present invention does not need to be welded and connected with any one of the two electronic devices by means of welding feet, but is conductively connected with the two electronic devices by means of elastic pressing, and is easy to assemble, unlike the welding conduction method which is affected by space limitations, and at the same time, even if there are multiple conductive members 3, it can enable a single electronic device to be conductively connected with the first conductive connection portion 311 or the second conductive connection portion 321 of all the conductive members 3 at one time, that is, a single operation is sufficient, and the operation is simple and convenient. In addition, after one of the electronic devices can be assembled or accommodated in the groove 221 on the insulator 2, it can limit the electronic device to ensure that the second conductive portion 321 of the second elastic arm 32 and the electronic device achieve stable elastic conductive connection, so that when another electronic device is pressed on the electronic device, the two are not easily misaligned, thereby enabling the two electronic devices to form a stable conductive connection.

[0069] The present invention also proposes a biosensor device, which can be a dynamic blood glucose meter, combined with Figure 2-11 As shown, the biosensor device includes the above-mentioned board-end connector, a housing (not shown), and a PCB board 4 and a sensor 5 installed in the housing and serving as two electronic devices respectively. The board-end connector has been clearly and completely described and will not be elaborated on here.

[0070] The board-end connector is fixed in the housing, the sensor 5 is pressed into the groove 221 of the board-end connector from top to bottom, and the first conductive part 51 at the lower end of the sensor 5 is pressed and contacted with the second conductive part 321 at the upper end of the second elastic arm 32, the PCB board 4 is pressed on the board-end connector and the sensor 5 from top to bottom, the third conductive part 41 of the PCB board 4 is pressed and contacted with the first conductive part 311 at the upper end of the first elastic arm 31, and the fourth conductive part 42 of the PCB board 4 is in contact with the second conductive part 52 at the upper end of the sensor 5, so that the board-end connector, the sensor 5, and the PCB board 4 are connected in series. In other words, the board-end connector, the sensor 5, and the PCB board 4 are all connected in a contact manner, and no welding is required, which reduces the welding link, and at the same time, there will be no problem of inconvenience in welding operation due to space limitations. At the same time, the first conductive connection portion 311 of the first elastic arm 31 and the second conductive connection portion 321 of the second elastic arm 32 of the conductive member 3 in the board-end connector are elastically pressed and connected with the third conductive portion 41 at the lower end of the PCB board 4 and the first conductive portion 51 at the lower end of the sensor 5, respectively, which is convenient for disassembly and assembly. Even if there are multiple conductive members 3, the PCB board 4 can be connected to the first conductive connection portions 311 of all the conductive members 3 at one time, and the sensor 5 can be connected to the second conductive connection portions 321 of all the conductive members 3 at one time, that is, a single operation is sufficient, and the operation is simple and convenient.

[0071] Of course, the above description is only a specific embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. All equivalent changes or modifications made according to the structure, characteristics and principles described in the patent application scope of the present invention should be included in the patent application scope of the present invention.

Claims

1. A board-end connector, comprising an insulator and a plurality of conductive members fixed on the insulator, characterized in that: Each conductive member has a first elastic arm and a second elastic arm which are connected to each other and respectively used to connect to two electronic devices, and the first conductive portion at the upper end of the first elastic arm is exposed at the upper end of the insulator; the insulator is provided with a groove for assembling or accommodating an electronic device, and the second conductive portion at the upper end of the second elastic arm is exposed in the groove.

2. The board connector according to claim 1, characterized in that: The first elastic arm and the second elastic arm are connected through the main body, and the height of the top surface of the first conductive portion is higher than the height of the top surface of the second conductive portion.

3. The board connector according to claim 2, characterized in that: The number of the second elastic arms is two, which are arranged in parallel, and the roots of the two second elastic arms are connected to a bending portion, and the bending portion is integrally connected to the main body; the conductive member has no welding legs.

4. The board connector according to claim 1, characterized in that: The insulator is fixed integrally with the conductive member by means of in-mold injection molding.

5. The board connector according to claim 1, characterized in that: The conductive member is fixed to the insulator by plug-in. Wherein, the insulator is provided with a first window and a second window distributed at intervals, the second window passes through the groove, and the insulator is also provided with a positioning hole; a positioning plate is provided on the conductive member, the conductive member is fixed to the insulator by embedding the positioning plate and the positioning hole, and the first conductive connection portion at the upper end of the first elastic arm and the second conductive connection portion at the upper end of the second elastic arm pass through the first window and the second window respectively.

6. The board connector according to claim 5, characterized in that: Both sides of the positioning piece end are extended along the width direction to form an arc-shaped clamping portion, and the middle part of the positioning piece end is stamped with a convex bulge protruding along the thickness direction. The arc-shaped clamping portion is clamped and positioned with the positioning hole, and the convex bulge is pressed and positioned against the inner wall of the positioning hole.

7. The board connector according to claim 5, characterized in that: The insulator includes a base and a cover body fixedly mounted on the base, the base is provided with the first window and the second window, the cover body is provided with the groove, and the cover body is also provided with a third window corresponding to the second window and connected to the groove; the first conductive portion passes through the first window and is exposed at the upper end of the base, and the second conductive portion passes through the second window and the third window and is exposed in the groove.

8. The board connector according to claim 7, characterized in that: The base is also provided with an installation groove connected to the second window, and the bottom of the installation groove is also provided with a plurality of card slots downwardly, and the inner wall of the card slot is formed with a card hook; the lower end of the cover body is provided with a plurality of undercuts, the cover body is installed in the installation groove, and the undercuts are embedded in the card slots and fixed with the card hooks.

9. The board connector according to claim 8, characterized in that: The base is also provided with an anti-foolproof groove on the inner wall of the installation groove, and the outer side of the cover body is provided with an anti-foolproof convex portion, which is pressed into the anti-foolproof groove; a plurality of positioning grooves are provided on both sides of the base, and an anti-foolproof positioning portion protruding outward is also provided on the outer side of the base.

10. A biosensor device, characterized in that: It includes a board-end connector as described in any one of claims 1 to 9, a shell, a PCB board and a sensor installed in the shell and serving as two electronic devices respectively, the board-end connector is fixed in the shell, the sensor is pressed from top to bottom into the groove of the board-end connector, and the first conductive portion at the lower end of the sensor is pressed and contacted with the second conductive portion at the upper end of the second elastic arm, the PCB board is pressed on the board-end connector and the sensor from top to bottom, the third conductive portion of the PCB board is pressed and contacted with the first conductive portion at the upper end of the first elastic arm, and the fourth conductive portion of the PCB board is in contact with the second conductive portion at the upper end of the sensor.

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