Connector structure of blood glucose monitoring system

Abstract

The utility model relates to the technical field of electronic connectors, in particular to a connector structure of a blood glucose monitoring system, which is used for electrical connection of a sensor and a circuit board, replaces a traditional conductive silica gel connection mode and can avoid interference of external environmental factors, and a plastic part and a terminal are integrally formed in an injection molding mode. The contact sections of the plurality of terminals abut against the two sides of the sensor to form an elastic abutting clamping structure, and the welding sections of the terminals are fixedly connected with the convex columns and the circuit board respectively, so that the stability of the structure is improved, the connection performance of the sensor and the circuit board is ensured, and the connector is also beneficial to subsequent automatic production and assembly.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic connector technical field especially, it relates to a connector structure of blood sugar monitoring system. BACKGROUND

[0002] With the progress of science and technology, the measurement accuracy and portability of the dynamic blood sugar monitoring system have been significantly improved, which facilitates real-time collection of blood sugar data, and the sensor is usually inserted into the subcutaneous tissue of the upper arm or abdomen to continuously measure the glucose level.

[0003] However, when the connecting end of the sensor is connected with the circuit board, conductive silicone is usually used for connection, and the connection mode of the conductive silicone needs to pass through gluing and curing process, which is easily disturbed by external environmental factors such as temperature and time, and the conductive silicone is not completely cured, which leads to the decline of the connection performance between the sensor and the circuit board. SUMMARY

[0004] The utility model discloses a connector structure of blood sugar monitoring system, aiming at the deficiency of prior art, it is in the sensor and circuit board of dynamic blood sugar monitoring system traditional conductive silica gel connection mode is used, and the technical problem that the connection performance between the sensor and the circuit board is easily reduced is solved.

[0005] In order to achieve the above object, the utility model adopts the technical scheme: a connector structure of blood sugar monitoring system is used for the electrical connection of sensor and circuit board, including integrally injection molded plastic part and multiple terminals;The top surface center of plastic part is provided with connecting groove, and multiple containing grooves distributed in two rows are arranged below connecting groove, containing groove and connecting groove are communicated, and the convex column is arranged on both sides of connecting groove corresponding to each containing groove;The terminal includes the contact section for being connected with the sensor elastically arranged at the front end and the welding section for being fixedly connected with the circuit board arranged at the tail end;Wherein, the contact section is placed in containing groove, and the contact section is inserted into connecting groove upwards, the sensor is placed between two rows of containing grooves, so that multiple contact sections and the sensor are in abutment, and the welding section is fixedly connected with the convex column and the circuit board respectively.

[0006] The utility model is further provided with: the terminal still includes straight section, and the straight section is connected with the welding section and the contact section respectively at both ends, so that the terminal forms U-shaped structure, the straight section is integrally formed with the plastic part, and the straight section part is inserted into containing groove.

[0007] The utility model is further provided with: the contact section includes first bending part, abutting part and inclined part that are connected in sequence and bent towards the welding section, the first bending part is perpendicular to the straight section, and the inclined part is bent and extends in the direction away from the welding section.

[0008] The utility model further sets up: the welding section includes the second bending part and the plane department of the bending of back contact section that connect gradually, the second bending part is perpendicular with the flat section, the plane department is pasted with the convex column top surface.

[0009] The utility model further sets up: the plastic part is provided with the clamping groove along the width direction through the top surface, the clamping groove is arranged at the center line of the length direction of the connecting groove, so that the clamping groove and the connecting groove are communicated, and the clamping groove is used for accommodating the sensor.

[0010] The utility model further sets up: the plastic part directly below the clamping groove forms the placement section, and the two rows of accommodating grooves are arranged on the left and right sides of the placement section, so that the contact section and the sensor are in abutment.

[0011] The utility model further sets up: the limiting opening of penetrating the plastic part is arranged below the front end of the placement section, the limiting opening is communicated with the clamping groove, so as to form the stepped positioning structure.

[0012] The utility model further sets up: the positioning column is arranged on the length edge of the both sides of the connecting groove, the top surface of the positioning column is higher than the top surface of the plastic part, and the positioning column is used for clamping with the circuit board.

[0013] Compared with the prior art, the beneficial effects of the present application are: the utility model discloses a connector for the electrical connection of the sensor and the circuit board, which can replace the connection mode of the traditional conductive silica gel, avoid the interference of external environmental factors, integrally injection mold the plastic part and the terminal, the contact section of the multiple terminals is in abutment on the two sides of the sensor, so as to form the elastic connection clamping structure, the welding section of the terminal is fixedly connected with the convex column and the circuit board respectively, the stability of the structure is improved, the connection performance of the sensor and the circuit board is guaranteed, and the connector is also beneficial to subsequent automatic production and assembly. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description, and obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0015] Figure 1 It is the overall structure schematic diagram of the connector of the utility model;

[0016] Figure 2 It is the structure schematic diagram of the plastic part in the utility model;

[0017] Figure 3 It is the structure schematic diagram of the terminal in the utility model;

[0018] Figure 4is a perspective view of the structure of connecting the sensor and the circuit board of the utility model;

[0019] Figure 5 is another perspective view of the structure of connecting the sensor and the circuit board of the utility model;

[0020] Figure 6 is a structure schematic view of the sensor;

[0021] Figure 7 is a structure schematic view of the circuit board.

[0022] The label details involved in the above drawing are as follows:

[0023] 1-connector;

[0024] 2-plastic part, 21-connecting groove, 22-receiving groove, 23-protruding column, 24-clamping groove, 25-placing section, 26-limiting port, 27-positioning column;

[0025] 3-terminal, 31-contact section, 311-first bending part, 312-abutting part, 313-inclined part, 32-straight section, 33-welding section, 331-second bending part, 332-flat part;

[0026] 4-sensor, 41-contact patch, 42-protruding section;

[0027] 5-circuit board, 51-contact point, 52-gap, 53-arc-shaped port. DETAILED DESCRIPTION

[0028] In the description of the present application, the term "a plurality of" refers to two or more (including two). The technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. The terms "mounting", "connecting", "connecting" and the like should be interpreted broadly, for example: "connecting" can be fixed connection, or detachable connection, or integral connection; "connected" can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] In the description of the present application, the technical terms "upper", "lower", "front", "rear", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore cannot be understood as a limitation on the embodiments of the present application.

[0030] In order to more clearly understand the above-mentioned purposes, technical solutions and advantages of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application, and detailed understanding of how to solve the problems raised in the above-mentioned background art.

[0031] It should be noted that, as shown in Figure 6 In the present embodiment, the sensor 4 is in a rectangular sheet structure, and three contact pads 41 are arranged on the two side surfaces of the front end of the sensor 4, the contact pads 41 being used to form elastic contact with the abutting portion 312, and a protruding section 42 is arranged at the rear end of the sensor 4, so that the sensor 4 is in an L-shaped structure; as shown in Figure 7 In the present embodiment, the circuit board 5 is in a rectangular shape, a plurality of contact points 51 are arranged on the bottom of the circuit board 5, the contact points 51 being used to tightly fit with the planar portion 332 of the soldering section 33, and the circuit board 5 is further provided with a notch 52, the notch 52 corresponding to the connecting groove 21, and the length of the notch 52 being greater than the width of the plastic part 2, when the circuit board 5 is arranged on the top surface of the plastic part 2, the sensor 4 is accommodated in the notch 52, and two arc-shaped openings 53 are further arranged on the two side edges of the notch 52, the arc-shaped openings 53 being used to be clamped with the plastic part 2.

[0032] As shown in Figures 1 to 5 A connector structure of a blood glucose monitoring system for electrical connection of the sensor 4 and the circuit board 5, comprising a plastic part 2 and a plurality of terminals 3 which are integrally injection molded; a connecting groove 21 is arranged on the top surface of the plastic part 2, a plurality of accommodating grooves 22 are arranged in two rows below the connecting groove 21, the accommodating grooves 22 being in communication with the connecting groove 21, and a protruding column 23 is arranged on each of the two sides of the connecting groove 21 corresponding to each of the accommodating grooves 22; the terminal 3 comprises a contact section 31 arranged at the front end for elastic connection with the sensor 4, and a soldering section 33 arranged at the tail end for fixed connection with the circuit board 5; wherein the contact section 31 is arranged in the accommodating groove 22, and the contact section 31 extends upward into the connecting groove 21, the sensor 4 is arranged between the two rows of accommodating grooves 22, so that the plurality of contact sections 31 abut against the sensor 4, and the soldering section 33 is fixedly connected with the protruding column 23 and the circuit board 5, respectively.

[0033] Specifically, but not only limited to, the terminal 3 is provided with 3, 3 terminals 3 and the fixed mode of the plastic part 2 adopts in-mold integrated injection molding to improve the structural strength; 3 terminals 3 correspondingly set 3 accommodation grooves 22, one accommodation groove 22 is on the left side, two accommodation grooves 22 are on the right side, so that the three accommodation grooves 22 form a triangular structure after being distributed in two rows, so that the three terminals 3 are staggered and distributed with a spacing, the accommodation groove 22 penetrates to the bottom surface of the plastic part 2, at this time the contact section 31 of the terminal 3 is placed in the accommodation groove 22; Correspondingly, the convex column 23 is also provided with 3, two convex columns 23 are arranged on the left end edge of the plastic part 2, and one convex column 23 is arranged on the right side edge of the plastic part 2; The convex column 23 and the accommodation groove 22 are coaxially arranged, the bottom surface and the top surface of the convex column 23 are flat surfaces, at this time the bottom surface of the welding section 33 of the terminal 3 and the convex column 23 are attached, and the top surface of the welding section 33 and the contact 51 of the circuit board 5 are fixed by welding.

[0034] Through the above scheme, in the embodiment, the connector 1 can be used first. The circuit board 5 cover is arranged above the plastic part 2, and the contact 51 on the bottom surface of the circuit board 5 and the top surface of the welding section 33 are attached and fixed by welding after the contact 51 on the bottom surface of the circuit board 5 and the top surface of the welding section 33 are attached. The sensor 4 can be inserted into the connecting groove 21 from top to bottom through the gap 52, and arranged between the three accommodation grooves 22 distributed in two rows, so that the three contact sections 31 abut on the two side surfaces of the sensor 4. On the one hand, the abutting portion 312 and the contact patch 41 form elastic contact to ensure electrical performance connection. On the other hand, the contact section 31 can clamp the sensor 4 left and right under the action of the elastic force, so as to fix the sensor 4, which is also helpful for the maintenance and replacement of the sensor 4 in the later period. The connection mode of the connector 1 is used instead of the traditional conductive silicone connection mode, which avoids the interference of external environmental factors, improves the stability of the structure, ensures the electrical performance connection of the sensor 4 and the circuit board 5, and is conducive to subsequent automatic production and assembly. The connector 1 has strong practicability and low cost.

[0035] As shown in Figure 1 and Figure 3 , as an improved specific embodiment, the terminal 3 further comprises a flat section 32, the two ends of the flat section 32 are connected with the welding section 33 and the contact section 31 respectively, so as to form a U-shaped structure of the terminal 3, the flat section 32 is integrally formed with the plastic part 2, and part of the flat section 32 extends into the accommodation groove 22. Specifically, the two ends of the flat section 32 are respectively connected with the welding section 33 and the connecting section, and a fillet is designed between them to ensure the stability of the structure, and at the same time, the terminal 3 is arranged in a U-shaped structure. When the plastic part 2 is injection molded, the flat section 32 will extend into the accommodation groove 22, which can ensure the elastic effect of the contact section 31; The distance between the bottom surface of the connecting groove 21 and the bottom surface of the plastic part 2 is greater than the thickness of the flat section 32.

[0036] As shown in Figure 1 and Figure 3As shown, as an improved embodiment, the contact section 31 comprises a first bending section 311, an abutting section 312 and an inclined section 313 connected in sequence, the first bending section 311 is perpendicular to the flat section 32, and the inclined section 313 extends in a direction away from the welding section 33. Specifically, the first bending section 311 is bent upward relative to the flat section 32, and the height of the connection between the first bending section 311 and the abutting section 312 is less than the top surface of the connection groove 21, and the connection between the first bending section 311, the abutting section 312 and the inclined section 313 is provided with a rounded corner design, and the inclined section 313 extends downward in a direction away from the welding section 33, so as to ensure that the surface of the abutting section 312 is in contact with the contact patch 41 on the side of the sensor 4, and avoid scratching or damaging the contact patch 41, and at the same time, the first bending section 311 and the abutting section 312 form an elastic structure, and the force arm is long and the elasticity is good.

[0037] As shown in Figure 1 and Figure 3 , as an improved embodiment, the welding section 33 comprises a second bending section 331 and a flat section 332 connected in sequence, the second bending section 331 is perpendicular to the flat section 32, and the flat section 332 is in contact with the top surface of the convex column 23. Specifically, the flat section 332 and the flat section 32 are parallel to each other, the flat section 332 is a rectangular structure, the second bending section 331 is bent upward relative to the flat section 32, and when the plastic part 2 is injection molded, part of the top end of the second bending section 331 protrudes relative to the top surface of the plastic part 2, and a rounded corner design is also provided between the second bending section 331 and the flat section 332, so that the flat section 332 can be closely attached to the contact 51 of the circuit board 5.

[0038] As shown in Figure 1 , Figure 2 and Figure 4 , as an improved embodiment, the plastic part 2 is provided with a clamping groove 24 along the width direction through the top surface, the clamping groove 24 is arranged at the center line of the length direction of the connection groove 21, so that the clamping groove 24 and the connection groove 21 are connected in communication, and the clamping groove 24 is used to accommodate the sensor 4. Specifically, the depth of the clamping groove 24 is the same as the depth of the connection groove 21, and the clamping groove 24 is connected in communication after passing through the connection groove 21, so that the clamping groove 24 and the connection groove 21 overlap, and after the sensor 4 is embedded in the clamping groove 24, the sensor 4 is partially embedded in the connection groove 21, so as to ensure the electrical connection between the terminal 3 and the sensor 4, and the end surface of the sensor 4 after installation is flush with the side surface of the plastic part 2, and the other end surface protrudes relative to the plastic part 2, which is conducive to the quick disassembly and assembly of the sensor 4.

[0039] As shown in Figure 2 , Figure 4 and Figure 5As shown, as an improved embodiment, the plastic part 2 directly below the card slot 24 forms a placement section 25, and two rows of accommodation slots 22 are arranged on the left and right sides of the placement section 25 to make the contact section 31 abut against the sensor 4. Specifically, the placement section 25 and the card slot 24 correspond to each other in up-down direction, and the width of the placement section 25 is the same as the length and width of the card slot 24. The card slot 24 is a rectangular slot, and the surface of the placement section 25 is a flat surface to ensure that the sensor 4 is placed flat and can avoid shaking or tilting of the sensor 4. At this time, one accommodation slot 22 is on the left side of the placement section 25, and two accommodation slots 22 are on the right side of the placement section 25. The abutting part 312 of the contact section 31 extends towards the placement section 25, thereby realizing elastic connection of the contact patch 41 of the sensor 4.

[0040] As shown in Figure 2 , Figures 4 to 6 As an improved embodiment, a limiting opening 26 penetrating through the plastic part 2 is arranged at the front end of the placement section 25, and the limiting opening 26 is in communication with the card slot 24 to form a stepped positioning structure. Specifically, the width of the limiting opening 26, the card slot 24 and the sensor 4 is the same. The protruding section 42 of the sensor 4 can be inserted into the limiting opening 26. The communication structure of the card slot 24 and the limiting slot corresponds to the structure of the sensor 4, so that the stepped positioning structure and the sensor 4 are embedded, thereby realizing positioning of the contact patch 41 at the front end of the sensor 4 and ensuring accurate connection of the abutting part 312 and the contact patch 41.

[0041] As shown in Figure 2 , Figure 4 and Figure 7 As an improved embodiment, a positioning column 27 is arranged at the length edge on both sides of the connecting slot 21. The top surface of the positioning column 27 is higher than the top surface of the plastic part 2, and the positioning column 27 is used for clamping with the circuit board 5. Specifically, the positioning column 27 protrudes after extending upwards along the top surface of the plastic part 2. The top surface of the positioning column 27 is flush with the top surface of the circuit board 5. The positioning column 27 corresponds to the arc-shaped opening 53, so that when the circuit board 5 is arranged on the top surface of the plastic part 2, the positioning column 27 can be embedded in the arc-shaped opening 53, thereby realizing clamping of the plastic part 2 and the circuit board 5 and ensuring accurate lamination of the planar part 332 and the contact 51 and improving welding precision.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present application, and the protection scope of the present application is not limited to the above embodiment. Any technical solution falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principle of the present application shall also be considered as the protection scope of the present application.

Claims

1. A connector structure of a blood glucose monitoring system for electrical connection of a sensor and a circuit board, characterized by, The plastic part and the plurality of terminals are integrally injection molded; The plastic part is provided with a connecting groove in the center of the top surface, and a plurality of accommodating grooves are arranged in two rows below the connecting groove, the accommodating grooves and the connecting groove are in communication, and a protruding column is arranged on both sides of the connecting groove corresponding to each of the accommodating grooves; The terminal includes a contact section arranged at the front end for elastic connection with the sensor, and a welding section arranged at the tail end for fixed connection with the circuit board; The contact section is arranged in the accommodating groove, and the contact section extends upward into the connecting groove, the sensor is arranged between the two rows of accommodating grooves, so that the plurality of contact sections abut against the sensor, and the welding section is fixedly connected with the protruding column and the circuit board, respectively.

2. The connector structure of a blood glucose monitoring system according to claim 1, wherein The terminal further includes a flat section, both ends of the flat section are connected with the welding section and the contact section, respectively, so that the terminal forms a U-shaped structure, the flat section is integrally formed with the plastic part, and the flat section partially extends into the accommodating groove.

3. The connector structure of a blood glucose monitoring system according to claim 2, wherein The contact section includes a first bending part, an abutting part bent toward the welding section, and an inclined part connected in sequence, the first bending part is perpendicular to the flat section, and the inclined part is bent and extends in a direction away from the welding section.

4. The connector structure of a blood glucose monitoring system according to claim 3, wherein The welding section includes a second bending part and a flat part bent away from the contact section connected in sequence, the second bending part is perpendicular to the flat section, and the flat part is in contact with the top surface of the protruding column.

5. The connector structure of a blood glucose monitoring system according to claim 1, wherein The plastic part is provided with a clamping groove along the width direction through the top surface, the clamping groove is arranged at the center line of the length direction of the connecting groove, so that the clamping groove and the connecting groove are in communication, and the clamping groove is used for accommodating the sensor.

6. The connector structure of a blood glucose monitoring system according to claim 5, wherein The plastic part below the clamping groove forms a placement section, and two rows of accommodating grooves are arranged on the left and right sides of the placement section, so that the contact section abuts against the sensor.

7. The connector structure of a blood glucose monitoring system according to claim 6, wherein A limiting opening penetrating through the plastic part is arranged below the front end of the placement section, the limiting opening is in communication with the clamping groove to form a stepped positioning structure.

8. The connector structure of a blood glucose monitoring system according to claim 1, wherein The length edges on both sides of the connecting groove are provided with positioning columns, the top surface of the positioning column is higher than the top surface of the plastic part, and the positioning column is used for clamping with the circuit board.

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