A connector for a CGM sensor

Abstract

The utility model relates to connector technical field especially relates to a kind of connector of CGM sensor, the connector is provided with the extension section extending outward in the lower part of the two symmetrical sides of plastic part, and the accommodating hole for accommodating sensor is centrally provided, the upper portion of extension section is correspondingly provided with circuit board, spring piece includes connecting section and the contact section connected with connecting section, contact section is in abutment with sensor, connecting section protrudes plastic part, and connecting section is placed between extension section and circuit board, connecting section and circuit board are connected using patch technology, so that connecting section is placed below circuit board, realize the use of circuit board bottom surface patch, when installing, the direction of plastic part carrying spring piece patch is opposite to the direction of sensor insertion plastic part, can satisfy the individualized demand of user whole machine board.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a connector for a CGM sensor. Background Technology

[0002] As people's living standards improve, they are paying more and more attention to their personal health. As a result, many families are equipped with blood glucose meters. In order to obtain accurate data when conducting blood glucose tests, continuous blood glucose monitoring is generally used. The blood glucose sensor is inserted into the body through a device, and the sensor transmits the data back to the meter.

[0003] Currently, an existing Chinese utility model patent (application number: CN202421695146.8) discloses a compact connector, including a housing and a cover disposed on the upper side of the housing. The housing has a placement part for accommodating a sensor. Two rows of end bullet pieces are fixedly connected in the placement part by in-mold forming. The end bullet pieces are staggered to separate the placement part into several cavities. Several positioning posts for clamping the sensor are staggered and fixedly connected to the lower surface of the cover. When the cover and the housing are assembled, the positioning posts are precisely inserted into the cavities. The housing has an upward-facing slot for cooperating with the sensor, and the slots are respectively disposed on opposite sides of the housing.

[0004] However, the inventors discovered that during actual assembly, the connector has a soldering section on the bottom surface of the housing, which can only be soldered to the top surface of the circuit board from top to bottom using surface mount technology. That is, the housing is placed on top of the circuit board, which makes it impossible to meet the user's personalized needs for the overall board layout. Utility Model Content

[0005] The purpose of this utility model is to provide a connector for a CGM sensor, addressing the shortcomings of the existing technology by solving the technical problem that the inner end bullet piece of the housing is soldered to the top surface of the circuit board in the existing connector, causing the housing to be placed on top of the circuit board, which makes it impossible to meet the personalized needs of the overall board layout.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a connector for a CGM sensor, comprising a plastic part and a plurality of spring pieces fixedly connected to the plastic part. The lower part of the two symmetrical sides of the plastic part is provided with an outwardly extending extension section and a receiving hole for accommodating the sensor in the center. A circuit board is correspondingly provided above the extension section. The spring pieces include a connecting section and a contact section connected to the connecting section. The connecting section extends out of the plastic part and is placed between the extension section and the circuit board, and the contact section extends into the receiving hole and abuts against the sensor.

[0007] Furthermore, the circuit board is provided with U-shaped mounting holes, and the plastic parts are embedded in the mounting holes so that the bottom surface of the circuit board is connected to the surface of the connecting section.

[0008] Furthermore, the circuit board is also provided with a positioning groove that communicates with the receiving hole, and the extension section is provided with an upwardly protruding positioning post that is embedded in the positioning groove.

[0009] Furthermore, the extension section is also equipped with clearance slots that are spaced apart from the connecting section.

[0010] Furthermore, the other two symmetrical sides of the plastic part are provided with slots with upward openings, which are connected to receiving holes, and the sensors are inserted into the slots.

[0011] Furthermore, the spring sheet is provided in two rows and is staggered so that the contact section extends into the receiving hole and is spaced out in multiple cavities. The plastic part is covered with a cover, and the lower surface of the cover is provided with multiple staggered limiting posts. The limiting posts are inserted into the cavities so that the fixing posts clamp the sensor and separate the contact section.

[0012] Furthermore, the spring also includes a fixed section and an elastic section connected together. The fixed section is connected to the connecting section, and the elastic section is connected to the contact section. The front end of the contact section is bent inward.

[0013] Furthermore, the fixed section has two symmetrical arc segments on its two sides, and one end of each arc segment has a concave arc surface.

[0014] Furthermore, a connecting hole is provided between the fixed section and the connecting section, and a Z-shaped landslide is provided on the inner wall of one end of the connecting hole, with the front end of the landslide positioned below the connecting hole.

[0015] Compared with the prior art, the beneficial effects of this application are as follows: The present invention has an extension section extending outward from the lower part of the two symmetrical sides of the plastic part, and a receiving hole for accommodating the sensor in the center. A circuit board is correspondingly arranged above the extension section. The spring includes a connecting section and a contact section connected to the connecting section. The contact section abuts against the sensor. The connecting section extends out of the plastic part and is placed between the extension section and the circuit board. The connecting section and the circuit board are connected by a patch technology, so that the connecting section is placed below the circuit board, realizing the application of patch on the bottom surface of the circuit board. During installation, the direction of the plastic part carrying the spring patch is opposite to the direction of the sensor being inserted into the plastic part, which can meet the user's personalized needs for the overall circuit board layout. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1This is one of the schematic diagrams of the three-dimensional structure of this utility model; Figure 2 This is the second schematic diagram of the three-dimensional structure of this utility model; Figure 3 This is a schematic diagram of the assembly structure of the plastic parts and the spring sheet in this utility model; Figure 4 This is a schematic diagram of the structure of the spring clip in this utility model; Figure 5 This is a schematic diagram of the circuit board structure in this utility model; Figure 6 This is a schematic diagram of the structure of the cover in this utility model.

[0018] The details of the reference numerals used in the above figures are as follows: 1-Plastic part, 11-Extension section, 12-Accommodation hole, 13-Positioning post, 14-Allowing groove, 15-Slot, 16-Cavity; 2-Spring piece, 21-Connecting section, 22-Contact section, 23-Fixing section, 24-Elastic section, 25-Circular arc section, 26-Arc surface, 27-Connecting hole, 28-Slide slope; 3-Circuit board, 31-Mounting hole, 32-Positioning groove; 4-Hood, 41-Limit post; 5-Sensors. Detailed Implementation

[0019] In the description of this application, the term "multiple" refers to two or more (including two). The terms "installation," "connection," and "linking," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0020] In the description of this application, the technical terms "upper", "lower", "front", "rear", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and 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. Therefore, they should not be construed as limitations on the embodiments of this application.

[0021] In order to better understand the above-mentioned objectives, technical solutions and advantages of this application, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings, and to understand in detail how to solve the problems raised in the background art.

[0022] like Figures 1 to 6As shown, a connector for a CGM sensor 5 includes a plastic part 1 and a plurality of spring pieces 2 fixedly connected to the plastic part 1. The lower part of the two symmetrical sides of the plastic part 1 is provided with an outwardly extending extension section 11 and a receiving hole 12 for accommodating the sensor 5 is provided in the center. A circuit board 3 is correspondingly provided above the extension section 11. The spring piece 2 includes a connecting section 21 and a contact section 22 connected to the connecting section 21. The connecting section 21 extends out of the plastic part 1 and is placed between the extension section 11 and the circuit board 3. The contact section 22 extends into the receiving hole 12 and abuts against the sensor 5.

[0023] With the above solution, after the connecting segment 21 extends out of the plastic part 1, the connecting segment 21 is placed between the extension segment 11 and the circuit board 3, that is, the top surface of the connecting segment 21 is exposed and connected to the circuit board 3, and the surface mount technology is used to achieve welding, so that the connecting segment 21 is placed under the circuit board 3, thereby realizing the application of the connecting segment 21 on the bottom surface of the circuit board 3. During installation, the direction of the plastic part 1 carrying the spring 2 for surface mounting is opposite to the direction of the sensor 5 being inserted into the plastic part 1, which can meet the user's personalized needs for the overall circuit board layout.

[0024] In this embodiment, the plastic part 1 is formed by in-mold injection molding, which fixes the plastic part 1 and the spring piece 2, enhancing the connection strength and shock resistance of the two and effectively extending the service life of the connector. The plastic part 1 can be composed of a rectangular block and two extension sections 11 arranged along the lower part of the two symmetrical sides of the rectangular block. The receiving hole 12 is opened on the rectangular block, and the connecting section 21 extends out of the rectangular block and is placed above the extension section 11. In the actual assembly process, after the spring piece 2 and the plastic part 1 are fixedly connected, the plastic part 1 and the circuit board 3 are snapped together and then the patch is applied. Then the sensor 5 is inserted into the slot 15, and finally the cover 4 is placed on top of the plastic part 1. It is simple and efficient.

[0025] like Figure 2 , Figure 3 and Figure 5 As shown, in one specific embodiment of the improvement, the circuit board 3 is provided with a U-shaped mounting hole 31, and the plastic part 1 is embedded in the mounting hole 31 so that the bottom surface of the circuit board 3 is connected to the surface of the connecting section 21. Specifically, the bottom surface of the circuit board 3 is provided with a surface mount area. In actual installation, the rectangular block of the plastic part 1 is inserted into the mounting hole 31 from bottom to top, so that the top surface of the extension section 11 abuts against the bottom surface of the circuit board 3. At this time, the connecting section 21 corresponds to the surface mount area. In some embodiments, the circuit board 3 can also be inverted first, with the surface mount area facing upward, and the plastic part 1 is also inverted so that the rectangular block enters the mounting hole 31 from top to bottom. At this time, the connecting section 21 exposed in the extension section 11 faces downward, which facilitates surface mount and assembly.

[0026] like Figure 1 , Figure 3 and Figure 5As shown, in one specific embodiment of the improvement, the circuit board 3 is further provided with a positioning groove 32 communicating with the receiving hole 12, and the extension section 11 is provided with an upwardly protruding positioning post 13, which is embedded in the positioning groove 32. Specifically, both the positioning groove 32 and the positioning post 13 are U-shaped structures. When the circuit board 3 is installed with the plastic part 1, the positioning post 13 can be embedded in the positioning groove 32, which on the one hand enables precise installation of the circuit board 3 and the plastic part 1, and on the other hand helps the connecting section 21 to align with the above-mentioned patch area, thereby improving installation efficiency and accuracy.

[0027] like Figure 2 and Figure 3 As shown, in one specific embodiment of the improvement, the extension section 11 is also provided with clearance grooves 14 spaced apart from the connecting section 21. Specifically, the design of the clearance grooves 14 is such that the extension section 11 has a boss at the position corresponding to the connecting section 21, that is, one boss corresponds to one connecting section 21. Therefore, there is a gap between the surface of the clearance groove 14 and the circuit board 3, which can improve the surface mount effect, and the connecting section 21 continues to extend outward from the boss to ensure the surface mount area.

[0028] like Figure 2 and Figure 3 As shown, in one specific embodiment of the improvement, the other two symmetrical sides of the plastic part 1 are provided with slots 15 with upward openings. The slots 15 are connected to the receiving hole 12, and the sensor 5 is inserted into the slots 15. Specifically, the extension section 11 is located on the lower part of the left and right symmetrical sides of the rectangular block, while the slot 15 is located on the upper part of the front and rear symmetrical sides of the rectangular block, and the slot 15 extends through the symmetrical sides, so that the receiving hole 12 and the slot 15 are connected, and the sensor 5 is extended. The contact section 22 extends into the slot 15 from the receiving hole 12, so that the contact section 22 and the slot 15 intersect when viewed from the front. The sensor 5 has a T-shaped structure with a protrusion at the bottom. The depth of the protrusion is greater than the depth of the slot 15. The sensor 5 is inserted into the slot 15 from top to bottom, so that the protrusion is embedded in the receiving hole 12. The protrusion abuts against the inner wall of the side of the rectangular block below the slot 15, which helps the contact section 22 and the sensor 5 to connect accurately. At the same time, the plastic part 1 limits the front and rear of the sensor 5 to prevent loosening after installation, thereby improving installation efficiency and accuracy.

[0029] like Figure 2 , Figure 3 and Figure 6As shown, in one specific embodiment of the improvement, the spring piece 2 is provided in two rows and is staggered so that the contact section 22 extends into the receiving hole 12 and is spaced out in multiple cavities 16. The plastic part 1 is covered with a cover 4, and the lower surface of the cover 4 is provided with multiple staggered limiting posts 41. The limiting posts 41 are inserted into the cavity 16 so that the fixing post clamps the sensor 5 and the separating contact section 22. Specifically, there are three spring pieces 2, with two columns forming a triangular structure of two on the left and one on the right, thus separating the rectangular receiving holes 12 to create cavities 16. The cover 4 consists of a cover plate and three limiting posts 41 arranged in a triangular shape on the bottom surface of the cover plate. During installation, after inserting the sensor 5 into the slot 15, the limiting posts 41 are aligned with the cavity 16 and inserted from top to bottom, so that the cover plate covers the rectangular block of the plastic part 1. This clamps the sensor 5 and limits its left and right movement, while also separating the spring pieces 2 to prevent them from shifting, thus improving the accuracy and compactness of the installation.

[0030] like Figure 3 and Figure 4 As shown, in one specific embodiment of the improvement, the spring 2 also includes a fixed section 23 and an elastic section 24 connected together. The fixed section 23 is connected to the connecting section 21, and the elastic section 24 is connected to the contact section 22. The front end of the contact section 22 is bent inward. Specifically, the spring 2 has a Z-shaped structure. The fixed section 23 is fixedly connected to the plastic part 1, so that both the elastic section 24 and the contact section 22 extend into the receiving hole 12. The elastic section 24 and the contact section 22 cooperate to provide good elastic force. The contact section 22 is formed by continuously bending downward and inward relative to the elastic section 24. During installation, the elastic section 24 can undergo elastic deformation and springback reset. After the sensor 5 is inserted, it achieves a precise connection with the spring 2. The contact section 22 undergoes elastic deformation to clamp the sensor 5, enhancing the stability, accuracy, and firmness of the connection between the two. When the sensor 5 needs to be replaced later, it can simply be pulled out, ensuring the convenience of later maintenance.

[0031] like Figure 3 and Figure 4 As shown, in one specific embodiment of the improvement, the fixed segment 23 is provided with arc segments 25 on both symmetrical sides, and one end of the arc segment 25 is provided with a concave arc surface 26. Specifically, the arc segment 25 is a semi-circular protruding structure designed on the side of the fixed segment 23. At the same time, the width of the fixed segment 23 is greater than the width of the elastic segment 24, which increases the bonding area between the spring 2 and the plastic part 1. An arc-shaped notch is provided between one end of the arc segment 25 and the side of the fixed segment 23. The concave surface of the arc segment 25 at this notch is the arc surface 26. When the plastic part 1 is injected, the molten plastic material can flow into this notch, which can enhance the bonding strength between the spring 2 and the plastic part 1.

[0032] like Figure 3 and Figure 4As shown, in one specific embodiment of the improvement, a connecting hole 27 is provided between the fixed section 23 and the connecting section 21. A Z-shaped slope 28 is provided on the inner wall of one end of the connecting hole 27, and the front end of the slope 28 is positioned below the connecting hole 27. Specifically, based on the fact that the extension section 11 forms a boss corresponding to the connecting section 21, and the top surface of the connecting section 21 is coplanar with the top surface of the boss, when the plastic part 1 is injection molded, the molten plastic material can enter and pass through the connecting hole 27, thereby connecting the plastic parts 1 above and below the fixed section 23. At the same time, the slope 28 extends in the direction from the connecting section 21 toward the elastic section 24. The design of the slope 28 can further enhance the bonding strength between the spring sheet 2 and the plastic part 1.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of this utility model, and the protection scope of this utility model is not limited to the above embodiments. All technical solutions within the scope of this utility model's concept are within the protection scope of this utility model. It should be pointed out that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A connector for a CGM sensor, comprising a plastic component and a plurality of spring contacts fixedly connected to the plastic component, characterized in that, The plastic part has an outwardly extending extension section on the lower part of its two symmetrical sides, and a receiving hole in the center for accommodating a sensor. A circuit board is correspondingly arranged above the extension section. The spring includes a connecting section and a contact section connected to the connecting section. The connecting section extends out of the plastic part and is placed between the extension section and the circuit board. The contact section extends into the receiving hole and abuts against the sensor.

2. The connector for a CGM sensor according to claim 1, characterized in that, The circuit board is provided with a U-shaped mounting hole, and the plastic part is embedded in the mounting hole so that the bottom surface of the circuit board is connected to the surface of the connecting section.

3. The connector for a CGM sensor according to claim 2, characterized in that, The circuit board is also provided with a positioning groove communicating with the receiving hole, and the extension section is provided with an upwardly protruding positioning post, which is embedded in the positioning groove.

4. The connector for a CGM sensor according to claim 1, characterized in that, The extension section is also provided with clearance slots that are spaced apart from the connecting section.

5. The connector for a CGM sensor according to claim 1, characterized in that, The plastic part has two other symmetrical sides with upward-facing slots, which are connected to the receiving hole, and the sensor is inserted into the slot.

6. The connector for a CGM sensor according to claim 1, characterized in that, The spring sheet is arranged in two rows and is staggered so that the contact section extends into the receiving hole and is spaced out in multiple cavities. The plastic part is covered with a machine cover, and the lower surface of the machine cover is provided with multiple staggered limiting posts. The limiting posts are inserted into the cavities so that the fixing posts clamp the sensor and separate the contact section.

7. The connector for a CGM sensor according to claim 1, characterized in that, The spring sheet also includes a fixed section and an elastic section connected together. The fixed section is connected to the connecting section, and the elastic section is connected to the contact section. The front end of the contact section is bent inward.

8. The connector for a CGM sensor according to claim 7, characterized in that, The fixed section has two symmetrical arc segments on its two sides, and one end of each arc segment has a concave arc surface.

9. The connector for a CGM sensor according to claim 7, characterized in that, A connecting hole is provided between the fixed section and the connecting section. A Z-shaped landslide is provided on the inner wall of one end of the connecting hole, and the front end of the landslide is located below the connecting hole.

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