CN219553777U - Electronic device and insulin pen - Google Patents

Abstract

The utility model relates to an electronic device and an insulin pen, wherein the electronic device comprises a circuit board, a conductive metal piece and a pole piece assembly; the circuit board is provided with a first electrode connecting part and a second electrode connecting part; a clamping position is formed between the conductive metal piece and the circuit board, the clamping position is used for loading the button battery, and when the button battery is loaded in the clamping position, the conductive metal piece electrically connects the button battery with the circuit board; the pole piece assembly is used for conducting the first electrode connecting part and the second electrode connecting part so that the button battery supplies power for the circuit board. According to the electronic device and the insulin pen, the battery capacity of the button battery can be free from the influence of components on the circuit board, so that the enough battery capacity can be maintained, the wiring of the circuit board is free from the influence of the arrangement position of the power pole piece, and the limitation on the wiring of the circuit board is reduced.

Description

Electronic device and insulin pen

Technical Field

The utility model relates to the technical field of medical equipment, in particular to an electronic device and an insulin pen.

Background

Currently, most of the battery designs on the PCBA board still adopt direct welding of a power pole piece on the PCB board (hereinafter referred to as a circuit board) to fix the button battery. Such conventional designs, although simple, have to sacrifice battery capacity to some extent in many occasions, such as electronic devices like electric toothbrushes, electronic cigarettes, floor sweeping robots, insulin pens, etc., considering wiring limitations of circuit boards and planar space requirements, or have to re-plan wiring of circuit boards to make the power pole pieces meet button cell setup requirements, so that the wiring of circuit boards is limited.

Disclosure of Invention

Based on this, an electronic device is provided for the problem of reducing the limitation of wiring of a circuit board while maintaining the battery capacity.

In one aspect, the present utility model provides an electronic device, including:

a circuit board having a first electrode connection portion and a second electrode connection portion spaced apart from each other and not conductive to each other;

the clamping position is used for loading the button battery, and when the button battery is loaded on the clamping position, the conductive metal piece electrically connects the button battery with the circuit board;

and the pole piece assembly is used for conducting the first electrode connecting part and the second electrode connecting part so that the button battery supplies power for the circuit board.

In some embodiments, the pole piece assembly includes a first electrode electrically connected to the first electrode connection, a second electrode electrically connected to the second electrode connection, and a third electrode for conducting the first electrode connection and the second electrode connection.

In some embodiments, the third electrode is fixed relative to the circuit board and is held in contact with the first electrode and the second electrode.

In some embodiments, the pole piece assembly further comprises a base, the third electrode is disposed on the base, and the base is movable to a first position and a second position relative to the circuit board, wherein when the base is in the first position relative to the circuit board, the first electrode and the second electrode are both in contact with the third electrode, and when the base is in the second position relative to the circuit board, at least one of the first electrode and the second electrode is separated from the third electrode.

In some embodiments, the electronic device further comprises a support plate connected with the circuit board, and the base is movably arranged on one side of the support plate, which is opposite to the circuit board, so as to move to a first position and a second position relative to the circuit board; the support plate is provided with a through hole, and the first electrode and the second electrode are at least partially positioned in the through hole; when the base is in a first position relative to the circuit board, the third electrode at least partially enters the through hole and is in contact with the first electrode and the second electrode.

In some embodiments, a socket part is arranged on one side of the support plate, which is opposite to the circuit board, and the socket part is arranged around the periphery of the through hole in a cylindrical shape; the base is rotatably arranged on the sleeving part.

In some embodiments, the base is provided with a back-off on the peripheral side, and the inner wall of the socket is provided with a buckle, and the buckle cooperates with the back-off to limit the base from being separated from the support plate.

In some embodiments, a spring is disposed between the support plate and the base for urging relative movement of the support plate and the base to return the base relative to the circuit board from a first position to a second position.

In some embodiments, at least one of the support plate and the base is provided with an annular groove for receiving an end of the spring.

In some embodiments, the base is provided with a protrusion, and the third electrode has an annular structure with a central hole, and the protrusion is matched with the central hole.

In some embodiments, the first electrode and/or the second electrode includes a flat plate portion and a circular arc sheet portion connected to each other, the flat plate portion being connected to the support plate, the circular arc sheet portion being disposed in the through hole.

In some embodiments, the electronic device further comprises a positioning buckle for connecting the circuit board to the support plate, and forming a heat dissipation gap between the circuit board and the support plate.

In some embodiments, the positioning buckle is a conductive member and is used for electrically connecting the first electrode connection portion with the first electrode; or, the positioning buckle is made of an insulating material, and the positioning buckle is provided with a wiring groove, and the electric connecting piece for connecting the first electrode connecting part and the first electrode is at least partially accommodated in the wiring groove.

In some embodiments, the electronic device comprises a housing connected to the support plate by the positioning buckle and covering the circuit board and the button cell.

In some embodiments, a side of the button cell facing the circuit board is supported by components on the circuit board.

On the other hand, the utility model provides electronic equipment, which comprises a pen body and the electronic device, wherein the electronic device is used for controlling the pen body to infuse insulin or recording the infusion quantity of the pen body when the button battery supplies power for the circuit board.

In some embodiments, the pen further comprises a rotator rotatably disposed on the pen body; the rotary body is used for adjusting the injection quantity of the pen body by rotating different angles; the electronic device is connected with the end part of the rotating body and is used for measuring and/or recording the rotation angle of the rotating body relative to the pen body.

The beneficial effects are that:

above-mentioned electron device and insulin pen forms the dress clamping position between electrically conductive metalwork and the circuit board to satisfy button cell installation needs, utilize the pole piece subassembly to switch on first electrode connecting portion and second electrode connecting portion, make button cell for the circuit board power supply, from this, satisfied button cell and carried out the switching on needs of the return circuit of supplying power to the circuit board, because button cell stacks in this kind of structure of circuit board through the clamping position, button cell's battery capacity can not receive the influence of components and parts on the circuit board, in order to maintain sufficient battery capacity. Moreover, based on the conductive metal piece, the button cell is electrically connected with the circuit board, and a clamping position for clamping the button cell is formed between the circuit boards, so that the button cell is fixed without directly welding a power pole piece on the circuit board, the wiring of the circuit board is not influenced by the setting position of the power pole piece, namely, the limitation on the wiring of the circuit board is reduced.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other embodiments of the drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic side view of an electronic device according to an embodiment;

FIG. 2 is a schematic cross-sectional view of an electronic device according to an embodiment;

FIG. 3 is a schematic cross-sectional view of an electronic device according to another embodiment;

FIG. 4 is an enlarged partial schematic view of the encircled portion of FIG. 3;

FIG. 5 is a partially enlarged schematic illustration of a connection position between a support plate and a base in an electronic device according to an embodiment;

FIG. 6 is a schematic structural diagram of first and second electrodes of an electronic device according to an embodiment;

FIG. 7 is a schematic side view of the first and second electrodes shown in FIG. 6;

FIG. 8 is a schematic top view of the first and second electrodes shown in FIG. 6;

FIG. 9 is a schematic side view of a third electrode of an electronic device according to an embodiment;

fig. 10 is a schematic top view of a third electrode of an electronic device according to an embodiment.

Reference numerals illustrate:

10. an electronic device; 10a, button cell; 11. a support plate; 11a, through holes; 11b, a sleeving part; 11c, a buckle; 11d, an annular groove; 11e, grooves; 12. a circuit board; 13. a conductive metal member; 13a, clamping positions; 131. a support part; 132. a bending part; 14. a pole piece assembly; 141. a first electrode; 142. a second electrode; 143. a third electrode; 144. a base; 1441. a disc; 1442. a cylindrical pin; 144a, back-off; 144b, protrusions; 15. positioning buckle; 16. a housing; 17. a buckling pin; 18. a spring; p, a flat plate part; s, an arc sheet part; K. positioning holes; J. contact pins.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Preferred embodiments of the present utility model are shown in the drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

In the description of the present utility model, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Referring to fig. 1 to 3, the present utility model provides an electronic device 10, which can be applied to electronic equipment such as an electric toothbrush, an electronic cigarette, a sweeping robot, an insulin pen, and the like.

The electronic device 10 includes a circuit board 12, a conductive metal 13, and a pole piece assembly 14. The circuit board 12 has a first electrode connection portion and a second electrode connection portion. A clamping position 13a is formed between the conductive metal piece 13 and the circuit board 12. The clamping position 13a is used for loading the button cell 10a, and when the button cell 10a is loaded on the clamping position 13a, the conductive metal piece 13 electrically connects the button cell 10a with the circuit board 12. What is needed here is a technical solution for electrically connecting the button cell 10a and the circuit board 12 by the conductive metal member 13, including but not limited to, electrically connecting two ends of the conductive metal member 13 to the electrode of the button cell 10a and the circuit board 12, respectively. For example, the conductive metal member 13 is electrically contacted with one of the electrodes of the button cell 10a and is electrically connected with the circuit board 12, and the other electrode of the button cell 10a may be electrically connected with the circuit board 12 by the other conductive metal member 13 or directly abutted against the electrical contact extending from the circuit board 12 so as to realize the electrical contact of the members.

In some embodiments, the conductive metal piece 13 is electrically connected to the first electrode connection portion, specifically, the conductive metal piece 13 may be welded to the first electrode connection portion to achieve electrical connection therebetween, or the conductive metal piece 13 may be welded to a circuit board, and the wiring of the circuit board is used to achieve electrical connection between the conductive metal piece 13 and the first electrode connection portion.

Regardless of the form of the conductive metal member 13 for electrically connecting the button cell 10a with the circuit board 12, the structure of stacking the button cell 10a on the circuit board 12 by using the clamping position 13a can make the cell capacity of the button cell 10a not affected by components on the circuit board 12 so as to maintain enough cell capacity, and the power pole piece is not required to be directly welded on the circuit board 12 to fix the button cell 10a, so that the wiring of the circuit board 12 is not affected by the setting position of the power pole piece, namely, the limitation on the wiring of the circuit board 12 is reduced. Therefore, compared with the related art, the flat layout of each module in a smaller space will sacrifice the space of the battery, resulting in only matching the battery with smaller capacitance, while the electronic device 10 of the present utility model is adopted to make the button battery 10a possess enough space, thereby being able to match the button battery 10a with larger capacitance, so as to obtain longer service life and durability. In addition, the button battery 10a is used in the embodiment of the utility model, which is more convenient for replacing the battery when the power is insufficient compared with the traditional embodiment of directly welding the power module to the circuit board, and is beneficial to the repeated use of the electronic device 10 so as to reduce the use cost.

The pole piece assembly 14 is used for conducting the first electrode connecting part and the second electrode connecting part, and when the first electrode connecting part and the second electrode connecting part are conducted, the button cell 10a positioned at the clamping position 13a supplies power to the circuit board 12. The button cell 10a can supply power to the circuit board 12 only when the circuit between the first electrode connection portion and the second electrode connection portion is turned on. That is, if the pole piece assembly 14 does not turn on the first electrode connection and the second electrode connection, the loop of the button cell 10a for supplying power to the circuit board 12 is disconnected, i.e., the button cell 10a cannot supply power to the circuit board 12 at this time. The technical scheme of the utility model can be applied to small electronic equipment with an opening and closing function, and the pole piece assembly 14 is independently arranged relative to the circuit board 12, so that on one hand, the space of the circuit board 12 is saved, the limitation on wiring of the circuit board 12 is reduced, and on the other hand, the pole piece assembly 14 can synchronously respond with the opening and closing function, and the operation is convenient and the energy consumption is reduced.

The first electrode connection portion and the second electrode connection portion may be pads on the circuit board 12, or may be connection terminals soldered on the circuit board 12, which is not limited herein.

In some embodiments, the conductive metal member 13 includes a support portion 131 and a bent portion 132 that are vertically connected, and the support portion 131 is vertically connected with the circuit board 12 such that the bent portion 132 and the circuit board 12 are spaced apart from each other to form the clamping position 13a. After the button cell 10a is loaded to the clamping position 13a, one electrode of the button cell 10a is propped against the bending part 132, and the propping force exerted by the bending part 132 on the button cell 10a is also beneficial to maintaining the stability of the button cell 10a, so that the button cell 10a is not easy to separate from the clamping position 13a. The size of the clamping position 13a may be preset as needed, and specifically, 1 button cell 10a may be mounted, or 2 or more button cells 10a may be mounted, which is not limited herein.

In some embodiments, the electronic device 10 includes a support plate 11, and the pole piece assembly 14 is disposed on the support plate 11, such that the support plate 11 is used as a mounting carrier for the pole piece assembly 14, so as to complete the assembly of the pole piece assembly 14 and the circuit board 12 when the support plate 11 is connected to the circuit board 12.

For example, referring to fig. 1, the supporting board 11 is provided with positioning buckles 15, and the circuit board 12 is connected with the supporting board 11 through the positioning buckles 15, and the number of the positioning buckles 15 may be 2 or more. For example, in some embodiments, 4 positioning buckles 15 are provided on the supporting board 11 to respectively position different positions on the periphery of the circuit board 12, so as to improve the connection stability between the circuit board 12 and the supporting board 11.

The circuit board 12 may also be connected to the support plate 11 by screws, which are not limited herein.

In other embodiments, the circuit board 12 is directly connected to the support plate 11, and the bottom of the circuit board 12 abuts against the support plate 11, so that the circuit board 12 and the support plate 11 are not easy to loose and tilt to one side.

It should be noted that, in some embodiments, the positioning buckle 15 may keep a space between the circuit board 12 and the support board 11, and in particular, after the circuit board 12 is connected to the support board 11 by the positioning buckle 15, a heat dissipation gap is formed between the circuit board 12 and the support board 11, so as to facilitate heat dissipation of components on the circuit board 12.

In some embodiments, the positioning buckle 15 is a conductive member and is used for electrically connecting the circuit board 12 and the pole piece assembly 14, so that the arrangement avoids trouble in wiring, avoids messy wires and is easy to scratch. It should be noted that, the material of the positioning buckle 15 is not limited to a conductive material, for example, the positioning buckle 15 is an insulating material, the positioning buckle 15 is provided with a wiring groove for connecting the circuit board 12 and at least part of the electrical connector of the pole piece assembly 14 to be accommodated in the wiring groove, so that the positioning buckle 15 can also meet the wiring requirement, and the wire is prevented from being scratched easily due to disorder. It should be noted that the wires mentioned in the present utility model include, but are not limited to, wires for electrically connecting the circuit board and the pole piece assembly 14.

As shown in fig. 1 and 3, in some embodiments, a casing 16 is connected to the supporting board 11, and the casing 16 covers the circuit board 12, the button cell 10a, and other structures, so as to maintain the integrity of the appearance of the electronic device 10, and the casing 16 may also be used as a force application point during pressing, so that the pressing operation feel is good.

The shell 16 may be connected to the support plate 11 by the positioning buckle 15, or may be connected to the support plate 11 by other structures. For example, the support plate 11 is provided with a latch 17, and the housing 16 is fixed to the latch 17 on the support plate 11.

The latch 17 may be provided on the positioning buckle 15, in other words, the positioning buckle 15 achieves positioning installation of the circuit board 12 on one hand, and can meet the installation requirement of the housing cover 16 on the other hand. Further, the latch 17 and the positioning buckle 15 are integrally formed, so that the number of structural members can be reduced.

The circuit board 12 is provided with components, and one side of the button cell 10a facing the circuit board 12 abuts against the components, so that the lamination between the button cell 10a and the components can be more compact, and the overall miniaturization of the electronic device 10 is facilitated. Moreover, due to the lamination arrangement of the button cell 10a and the components, the battery capacity of the button cell 10a can be free from the restriction of the components on the circuit board 12, and accordingly, the problem that the components and the button cell 10a interfere with each other to limit the wiring space can not occur when the circuit board 12 is wired.

In some embodiments, as shown in fig. 2-3, the pole piece assembly 14 includes a first electrode 141, a second electrode 142, and a third electrode 143, the first electrode 141 is electrically connected to the first electrode connection portion, and the second electrode 142 is electrically connected to the second electrode connection portion. Schemes for achieving electrical connection include, but are not limited to, electrical connection with each other through conductive elements such as wires, FPC boards, etc. The third electrode 143 is configured to electrically connect the first electrode 141 and the second electrode 142, so that the first electrode connection portion and the second electrode connection portion are electrically connected. In this embodiment, since the first electrode 141, the second electrode 142 and the third electrode 143 in the pole piece assembly 14 are independent from the circuit board 12, and precisely, the pole pieces are not welded to the circuit board 12, the arrangement of the pole pieces does not destroy the routing layout of the circuit board 12, and only the first electrode connecting portion and the second electrode connecting portion need to be reserved on the circuit board 12 so as to be electrically connected with the first electrode 141 and the second electrode 142 respectively through wires. Thus, the wiring of the circuit board 12 is more flexible, and the problem of limited wiring of the circuit board 12 caused by directly welding the power pole piece to fix the button cell 10a in the related art can be avoided.

It should be noted that, the third electrode 143 may be in contact with the first electrode 141 and the second electrode 142, so that the first electrode 141 and the second electrode 142 are maintained in a conductive state, and at this time, the button cell 10a mounted on the clamping position 13a will continuously supply power to the circuit board 12. In some embodiments, the third electrode 143 may be only contacted with the first electrode 141 and the second electrode 142 when operated by a user, so as to controllably conduct the power supply circuit between the button cell 10a and the circuit board 12, so that the button cell 10a is not required to continuously supply power to the circuit board 12, and the button cell 10a only supplies power to the circuit board 12 when required, so as to effectively prolong the service life of the button cell 10 a.

For example, as shown in connection with fig. 2 and 3, in some embodiments, the pole piece assembly 14 includes a base 144, the base 144 being movable to a first position and a second position relative to the circuit board 12. It should be noted that, the base 144 may be movably connected to the circuit board 12 through the support board 11, and specifically, the base 144 may be movably connected to the support board 11, so that when the support board 11 is connected to the circuit board 12, the movement of the base 144 relative to the support board 11 may be regarded as the movement of the base 144 relative to the circuit board 12. Of course, in some embodiments, the base 144 may be movably connected to the electronic board 12 by a structure other than the supporting board 11.

When the base 144 is at the first position relative to the circuit board 12, the first electrode 141 and the second electrode 142 are both in contact with the third electrode 143, so that the third electrode 143 conducts the first electrode 141 and the second electrode 142, and based on the first electrode 141 and the second electrode 142 being respectively electrically connected with the first electrode connection portion and the second electrode connection portion of the circuit board 12, the third electrode 143 conducts the first electrode connection portion and the second electrode connection portion.

When the base 144 is at the second position with respect to the circuit board 12, at least one of the first electrode 141 and the second electrode 142 is separated from the third electrode 143 to disconnect the electrical connection between the first electrode connection portion and the second electrode connection portion.

In some embodiments, the insulin pen includes a pen body and the electronic device 10 is configured to control the pen body to infuse insulin or to record the amount of infusion of the pen body.

For ease of understanding, the following examples are given by way of example of insulin therapy pen or pen cap, but the practical application is not limited thereto. In some embodiments, the third electrode 143 conducts the first electrode 141 and the second electrode 142 by pressing the electronic device 10 such that the base 144 moves relative to the support plate 11. In this push-activated version, the button cell 10a only powers the circuit board 12 when the insulin pen or pen cap is pushed to maintain the electrical requirements of the circuit board 12 to perform the corresponding function. The functions of the circuit board 12 include, but are not limited to, controlling the insulin pump to infuse insulin, controlling an associated monitoring assembly to monitor the flow rate of the insulin pump, or recording the infusion rate of the insulin pump. It will be appreciated that in embodiments where the third electrode 143 is in constant contact with the first and second electrodes 141, 142, the button cell 10a may continue to power the circuit board 12 without pressing until the charge is exhausted, which may be understood as a normally closed connection, with the insulin pen or cap continuously operating.

The insulin pen also comprises a rotary body which is rotatably arranged on the pen body and used for adjusting the injection quantity of the pen body by rotating at different angles. The electronic device 10 is connected to the end of the rotator and is used to measure and/or record the rotation angle of the rotator relative to the pen body, so that the infusion amount can be known according to the rotation angle of the rotator relative to the pen body. For example, the process of rotating the rotating body relative to the pen body by 1 turn (i.e. rotating the rotating body by 360 °) is equally divided into 24 dosage units, and when the rotating body shell 110 is operated to rotate the rotating body by 15 °, one dosage unit is obtained. It will be appreciated that for each subsequent 15 deg. rotation, the dose of one dosage unit is incremented, e.g. operating the rotation housing 110 to rotate the rotation body 45 deg., the rotation body adjusts the dose of 3 dosage units. Correspondingly, after the injection quantity is adjusted, when insulin corresponding to the injection quantity is pushed out from the pen body, the reset rotation angle of the rotating body is equal to the rotation angle in the process of adjusting the injection quantity in size and opposite in direction. When the electronic device 10 is pressed to perform injection, the rotating body rotates relative to the pen body, so that the electronic device 10 measures and/or records the rotation angle of the rotating body relative to the pen body, and the reset rotation angle of the rotating body can be known, and then the injection quantity corresponding to the angle is obtained. For example, in this embodiment, when the rotator rotates 15 ° with respect to the pen body during the pushing of insulin from the pen body, the electronic device 10 converts the detected rotation angle of the rotator with respect to the pen body into an injection amount of one dosage unit.

As further shown in fig. 2 and 3, in some embodiments, the support plate 11 is provided with a through hole 11a, at least a part of the first electrode 141 and the second electrode 142 are disposed in the through hole 11a, and the third electrode 143 is connected to the base 144 and is opposite to the through hole 11 a.

The base 144 is movably connected to a side of the support plate 11 facing away from the circuit board 12 to move to a first position and a second position relative to the circuit board 12. In this embodiment, when the base 144 is at the first position relative to the circuit board 12, at least a portion of the third electrode 143 enters the through hole 11a and contacts the first electrode 141 and the second electrode 142 to conduct the first electrode connection portion and the second electrode connection portion.

Further, the support plate 11 has a socket 11b on a side facing away from the circuit board 12, the socket 11b is disposed around a circumference of the through hole 11a in a cylindrical shape, and the base 144 is rotatably disposed on the socket 11b. In this embodiment, the base 144 is rotatably disposed on the socket 11b, which can meet the rotation requirement in some cases. For example, in the embodiment of the electronic device 10 applied to an insulin pen or a pen cap, the electronic device 10 can be used as a pressing switch to receive a pressing force to perform insulin injection, and in the pressing operation, even if the finger is pressed, the support plate 11 and the finger cannot rotate, the base 144 can also rotate relative to the support plate 11 to adapt to the requirement of the insulin pen or the pen cap for measuring the injection amount by adopting a rotation angle. For example, the base 144 is fixed to the rotating body of the insulin pen such that, when insulin is infused by pressing the electronic device 10, the rotating body rotates relative to the pen body and the base 144 rotates relative to the support plate 11. When the insulin pen is operated to infuse insulin, the thumb of the operator presses the electronic device 10 (e.g., presses the housing 16), and the other fingers are held on the pen body, so that the rotation angle of the rotator with respect to the pen body coincides with the rotation angle of the base 144 with respect to the support plate 11. Thus, the electronic device 10 can learn the rotation angle of the rotating body relative to the pen body by detecting the rotation angle of the base 144 relative to the supporting plate 11 or the rotation angle of the base 144 relative to the housing 16, so as to learn the pouring amount. It should be noted that, the technical solution of the electronic device 10 for detecting the relative rotation angle of the base 144 and the support plate 11 includes, but is not limited to, providing an angle detection assembly on the base 144 and the support plate 11. The angle detection component can be implemented by adopting giant magnetoresistance (Giant Magneto Resistanc, GMR) technology or tunnel magnetoresistance (Tunnel Magneto Resistance, TMR) technology, or can be implemented by using a 3D chip (such as a 3D acceleration sensor). The type of angle detection assembly is not limited herein. Further, in some embodiments, the first and second electrodes 141 and 142 may have a structure including a flat plate portion P and a circular arc sheet portion S vertically connected to the flat plate portion P, and may have an overall L-shape. The flat plate part P is connected with the supporting plate 11, the circular arc sheet part S is arranged in the through hole 11a, the circular arc sheet part S keeps in contact with the third electrode 143 in the process that the third electrode 143 rotates along with the base 144, that is, the electrode assembly keeps on in the process that the base 144 rotates along with the rotating body, so that the detection of the infusion quantity is not interrupted, and the insulin quantity infused by the pen body or the recorded infusion quantity is ensured to have higher accuracy.

Referring to fig. 2 to 4, the base 144 includes a circular disk 1441 and a cylindrical pin 1442 connected to the circular disk 1441, an inverted buckle 144a is disposed on a peripheral side of the cylindrical pin 1442, a buckle 11c is disposed on an inner wall of the socket portion 11b, and the buckle 11c cooperates with the inverted buckle 144a to limit the separation of the base 144 from the support plate 11, so that the connection stability between the base 144 and the support plate 11 can be maintained.

The shape of the base 144 is not limited to the circular disk 1441 and the cylindrical pin 1442, and the back-off 144a is not limited to the cylindrical pin 1442, and may be provided on the circumference of the base 144 to be engaged with the buckle 11 c.

As shown in connection with fig. 5, in some embodiments, a spring 18 is disposed between the support plate 11 and the base 144, the spring 18 being configured to urge the base 144 from the first position to the second position relative to the circuit board 12. Since the first electrode 141 and the second electrode 142 are both in contact with the third electrode 143 when the base 144 is in the first position with respect to the circuit board 12, the first electrode 141 and the second electrode 142 are both separated from the third electrode 143 when the base 144 is in the second position with respect to the circuit board 12. Therefore, only in the pressing operation, the elastic force of the spring 18 is overcome, so that the base 144 drives the third electrode 143 to move to contact with the first electrode 141 and the second electrode 142, and the button cell 10a supplies power to the circuit board 12, so that the service life of the button cell 10a is effectively prolonged.

The spring 18 may be a cylindrical compression spring with both ends closed, when the casing 16 is pressed down, an external force is transferred to the supporting plate 11 through the casing 16, the spring 18 is compressed, the supporting plate 11 moves down along the cylindrical pin 1442 of the base 144 until the first electrode 141 and the second electrode 142 contact the third electrode 143, so that the first electrode 141 and the second electrode 142 are conducted by the third electrode 143, and the button cell 10a supplies power to the circuit board 12.

As shown in fig. 2 and 5, in some embodiments, the support plate 11 is provided with an annular groove 11d, the spring 18 is disposed in the socket portion 11b, and one end of the spring 18 is received in the annular groove 11d, and the other end abuts against the base 144. The annular groove 11d can have a positioning effect on the spring 18 on one hand, and the installation stability of the spring 18 is improved; on the other hand, in the process of compressing the spring 18, the annular groove 11d also provides a containing space for the spring 18, so that the structure is compact, and the space utilization rate is high.

It should be noted that, the base 144 may also be provided with an annular groove 11d to accommodate the other end of the spring 18, so as to have a positioning effect on the spring 18. In some embodiments, the support plate 11 and the base 144 are provided with annular grooves 11d, so that two ends of the spring 18 are respectively received in the annular grooves 11d of the support plate 11 and the base 144, so as to further improve the positioning effect of the spring 18, and improve the space utilization rate by receiving the ends of the spring 18, so as to facilitate miniaturization of the electronic device 10.

In some embodiments, the first electrode 141 and the second electrode 142 are identical in structure. As shown in fig. 6 and 7, the first electrode 141 and the second electrode 142 may have a structure including a flat plate portion P and a circular arc sheet portion S vertically connected to each other, and may have an overall L-shape. The flat plate portion P is connected to the support plate 11, and the circular arc sheet portion S is provided in the through hole 11 a. The flat plate portion P is electrically connected to the electrode connection portion on the circuit board 12 through a wire. The arc sheet portion S serves as a portion electrically contacting the third electrode 143, so that the third electrode 143 turns on the first electrode 141 and the second electrode 142 when the third electrode 143 contacts the arc sheet portion S of the first electrode 141 and the second electrode 142. Further, a plurality of contact pins J may be provided at the end positions of the circular arc thin portion S, and the electrical connection stability when the third electrode 143 is in contact with the plurality of contact pins J may be improved. The number of the contact pins J may be 1, or may be 2 or more, and is not limited herein.

As shown in fig. 8, the arc angle α of the arc thin portion S is smaller than 180 °, and thus, when the first electrode 141 and the second electrode 142 are attached to the through hole 11a of the support plate 11, the first electrode 141 and the second electrode 142 are not connected by mistake, which would result in a short circuit.

As shown in connection with fig. 9 and 10, in some embodiments, the third electrode 143 is ring-shaped with a central hole.

As shown in fig. 5, a protrusion 144b is provided on the cylindrical pin 1442 of the base 144 to be engaged with the center hole by the protrusion 144b, so that the third electrode 143 is stably mounted on the base 144. The third electrode 143 may also be connected to the base 144 by glue or screws, which are not limited herein.

As shown in fig. 2, 3 and 5, the support plate 11 is provided with a groove 11e, and the flat plate portion P is positioned in the groove 11e, so that not only is the stacking volume of the structure reduced to facilitate miniaturization, but also the mounting stability of the first electrode 141 and the second electrode 142 on the support plate 11 can be improved by using the groove 11 e.

Further, positioning protrusions (not shown) may be appropriately provided at positions corresponding to the grooves 11e on the support plate 11, and accordingly, positioning holes K (shown in fig. 6) are provided on the first and second electrodes 141 and 142 to be matched with the positioning protrusions, so that connection stability between the first and second electrodes 141 and 142 and the support plate 11 is improved by using the positioning protrusions and the positioning holes K.

In some embodiments, the supporting plate 11 is provided with a wiring groove (not shown) for accommodating the wires, so that the wires are not easily disordered. The wire grooves may be perpendicular to the grooves so as to weld one end of the wire with the side of the flat plate portion P located in the grooves.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (17)

1. An electronic device, comprising:

a circuit board having a first electrode connection portion and a second electrode connection portion spaced apart from each other and not conductive to each other;

the clamping position is used for loading the button battery, and when the button battery is loaded on the clamping position, the conductive metal piece electrically connects the button battery with the circuit board;

and the pole piece assembly is used for conducting the first electrode connecting part and the second electrode connecting part so that the button battery supplies power for the circuit board.

2. The electronic device of claim 1, wherein the pole piece assembly comprises a first electrode, a second electrode, and a third electrode, the first electrode is electrically connected to the first electrode connection portion, the second electrode is electrically connected to the second electrode connection portion, and the third electrode is configured to electrically connect the first electrode connection portion and the second electrode connection portion.

3. The electronic device of claim 2, wherein the third electrode is fixed relative to the circuit board and is held in contact with the first electrode and the second electrode.

4. The electronic device of claim 2, wherein the pole piece assembly further comprises a base, the third electrode is disposed on the base, and the base is movable to a first position and a second position relative to the circuit board, wherein when the base is in the first position relative to the circuit board, the first electrode and the second electrode are each in contact with the third electrode, and when the base is in the second position relative to the circuit board, at least one of the first electrode and the second electrode is separated from the third electrode.

5. The electronic device of claim 4, further comprising a support plate coupled to the circuit board, the base being movably disposed on a side of the support plate facing away from the circuit board for movement relative to the circuit board to a first position and a second position;

the support plate is provided with a through hole, and the first electrode and the second electrode are at least partially positioned in the through hole;

when the base is in a first position relative to the circuit board, the third electrode at least partially enters the through hole and is in contact with the first electrode and the second electrode.

6. The electronic device according to claim 5, wherein a side of the support plate facing away from the circuit board is provided with a socket part, and the socket part is cylindrically arranged around a peripheral side of the through hole; the base is rotatably arranged on the sleeving part.

7. The electronic device of claim 6, wherein the base has a back-off on a peripheral side thereof, and the inner wall of the socket portion has a buckle, the buckle cooperating with the back-off to limit the base from being separated from the support plate.

8. The electronic device of claim 5, wherein a spring is disposed between the support plate and the base, the spring being configured to urge relative movement of the support plate and the base to return the base relative to the circuit board from a first position to a second position.

9. The electronic device of claim 8, wherein at least one of the support plate and the base is provided with an annular groove for receiving an end of the spring.

10. The electronic device of claim 8, wherein the base is provided with a protrusion, and the third electrode has a ring-shaped structure with a central hole, and the protrusion is matched with the central hole.

11. The electronic device of claim 5, wherein the first electrode and/or the second electrode comprises a flat plate portion and a circular arc sheet portion connected to each other, the flat plate portion being connected to the support plate, the circular arc sheet portion being provided in the through hole.

12. The electronic device of claim 5, further comprising a positioning buckle for connecting the circuit board to the support plate and forming a heat dissipation gap between the circuit board and the support plate.

13. The electronic device of claim 12, wherein the positioning buckle is a conductive member and is configured to electrically connect the first electrode connection portion with the first electrode; or, the positioning buckle is made of an insulating material, and the positioning buckle is provided with a wiring groove, and the electric connecting piece for connecting the first electrode connecting part and the first electrode is at least partially accommodated in the wiring groove.

14. The electronic device of claim 12, comprising a housing connected to the support plate by the positioning buckle and covering the circuit board and the button cell.

15. The electronic device of claim 1, wherein a side of the button cell facing the circuit board is supported by components on the circuit board.

16. An insulin pen comprising a pen body and an electronic device as claimed in any one of claims 1-15 for controlling the pen body to infuse insulin or to record the amount of infusion of the pen body when the button cell is powering the circuit board.

17. The insulin pen of claim 16, further comprising a rotator rotatably disposed to the pen body; the rotary body is used for adjusting the injection quantity of the pen body by rotating different angles; the electronic device is connected with the end part of the rotating body and is used for measuring and/or recording the rotation angle of the rotating body relative to the pen body.