Blood glucose monitor with zero-power-consumption switching circuit

Abstract

The present disclosure describes a blood glucose monitor having a zero power consumption switching circuit, the blood glucose monitor comprising an application device configured to apply the transmitter to a host, and a transmitter detachably fitted with the application device, the application device comprising a magnetic device, the zero-power-consumption switching circuit comprises a power supply, an elastic piece switch and a functional circuit module which are arranged on the transmitter, the power supply, the elastic piece switch and the functional circuit module are sequentially connected, and when the transmitter and the applying device are assembled, the magnetic force applied to the elastic piece switch by the magnetic device is larger than a separation threshold value, and the elastic piece switch is in an off state; when the emitter is separated from the applying device, the magnetic force applied to the elastic piece switch by the magnetic device is smaller than a separation threshold value, and the elastic piece switch is in a closed state, so that the power supply, the elastic piece switch and the functional circuit module form a loop. As a result, it is possible to provide a blood glucose monitor having a zero-power-consumption switching circuit, the blood glucose monitor being capable of maintaining zero power consumption in a non-activated state.

Description

Technical Field

[0001] The present disclosure relates generally to the field of medical device technology, and more particularly to a blood glucose monitor with a zero-power switching circuit. Background Art

[0002] A blood glucose monitor is a device used to continuously monitor the glucose concentration in the human body. In general, the blood glucose monitor includes an application device and a transmitter. The transmitter can be picked up by the application device and then applied to the surface of the human skin, thereby enabling continuous dynamic monitoring of the glucose concentration in the human tissue fluid. The power supply system of the blood glucose monitor generally uses a small button battery, which has a low capacity density and a limited battery capacity. Therefore, the blood glucose monitor should not consume or consume as little battery power as possible when it is not enabled. In this way, when the blood glucose monitor is enabled, the button battery can support the normal operation of the blood glucose monitor for a long time.

[0003] The prior art discloses a control method and circuit for turning a blood glucose meter on and off. The reed switch circuit outputs a first electrical signal when an external magnetic field approaches, and the first electrical signal is used to cut off the switch circuit, thereby powering off the blood glucose meter and the system control module, thereby reducing the power loss of the blood glucose meter product during inventory. At the same time, the reed switch circuit outputs a second electrical signal when the external magnetic field moves away, and the second electrical signal is used to turn on the switch circuit, thereby powering on the blood glucose meter and the system control module.

[0004] However, the reed switch circuit involved in the above-mentioned prior art includes active electronic components such as NMOS semiconductor devices. The reed switch circuit needs to be connected to a power supply in order to output an electrical signal under the action of an external magnetic field to control the cutoff and conduction of the switch circuit. That is, when the blood glucose meter involved in the prior art is not enabled, its internal reed switch circuit still needs to consume the power of the power supply system (such as a battery) of the blood glucose monitor. This may cause insufficient battery power, making it difficult to support the normal operation of the blood glucose monitor for a long time. In addition, it may also affect the preservation (or storage) time of the blood glucose monitor. Summary of the invention

[0005] The present disclosure is proposed in view of the above situation, and aims to provide a blood glucose monitor with a zero-power consumption switch circuit, which can maintain zero power consumption in an inactive state.

[0006] To this end, the present disclosure provides a blood glucose monitor with a zero-power switching circuit, the blood glucose monitor comprising an application device and a transmitter detachably assembled from the application device, the application device being configured to apply the transmitter to a host, the application device comprising a magnetic device, the zero-power switching circuit comprising a power supply, a spring switch and a functional circuit module arranged on the transmitter, wherein the power supply, the spring switch and the functional circuit module are interconnected in sequence, when the transmitter is assembled with the application device, the magnetic force applied by the magnetic device to the spring switch is greater than a separation threshold, and the spring switch is in an open state; when the transmitter is separated from the application device, the magnetic force applied by the magnetic device to the spring switch is less than the separation threshold, and the spring switch is in a closed state, so that the power supply, the spring switch and the functional circuit module form a loop, wherein the separation threshold is a threshold at which the spring switch is disconnected from the functional circuit module or the power supply under the action of the magnetic force of the magnetic device.

[0007] In the present disclosure, since the transmitter can be detachably assembled to the application device, when the blood glucose monitor is not enabled, the transmitter and the application device are assembled together; when the blood glucose monitor is enabled, the application device can apply the transmitter to the host (e.g., human body) to separate the transmitter from the application device. In addition, by arranging the power supply, the spring switch and the functional circuit module on the transmitter, and interconnecting the power supply, the spring switch and the functional circuit module in sequence to form a power supply line, the spring switch can be used to control the conduction and disconnection of the power supply line between the power supply and the functional circuit module, so that the power supply and power failure of the functional circuit module can be controlled. In addition, since the application device has a magnetic device, when the blood glucose monitor is not enabled, the transmitter and the application device are assembled together, and the transmitter is in the magnetic field generated by the magnetic device, so that the magnetic field of the magnetic device can be used to apply a magnetic force to the spring switch, and the magnetic force is greater than the separation threshold, and the spring switch is in a disconnected state to disconnect the power supply line between the functional circuit module and the power supply, so that the functional circuit module no longer consumes the power of the power supply. Thus, the blood glucose monitor can maintain zero power consumption in the disabled state. In addition, when the blood glucose monitor is enabled, the application device is separated from the transmitter, and the transmitter is away from the magnetic field generated by the magnetic device, so that the magnetic force applied by the magnetic device to the spring switch is less than the separation threshold, and the spring switch is in a closed state to connect the power supply line between the power supply and the functional circuit module, so that the power supply can provide power to the functional circuit module to enable the functional circuit module to operate normally.

[0008] In addition, in the blood glucose monitor involved in the present disclosure, optionally, the shrapnel switch includes a first end, a second end, and a main body portion for connecting the first end and the second end and having elasticity, the first end being fixedly connected to any pole of the power supply, and the main body portion being configured to drive the second end portion to abut against the power supply contact of the functional circuit module to form the loop. In this case, the power supply line formed by the power supply, the shrapnel switch and the functional circuit module can be turned on, and the power supply can supply power to the functional circuit module so that the functional circuit module can work normally. In addition, since the main body portion is elastic, the main body portion can be easily deformed under the action of an external force, thereby facilitating the change of the state of the shrapnel switch by the action of an external force.

[0009] In addition, in the blood glucose monitor involved in the present disclosure, optionally, the main body is in the shape of a long plate, the first end is a frame structure, the second end is a protrusion structure, the protrusion structure includes a bottom and an arc-shaped portion protruding from the bottom, the main body is respectively connected to the bottom and any surface of the frame structure, and the arc-shaped portion and the frame structure are located on the same side of the main body. In this case, when the second end abuts against the power supply contact of the functional circuit module, the arc-shaped portion abuts against the power supply contact, thereby improving the firmness and tightness of the contact between the second end and the power supply contact.

[0010] In addition, in the blood glucose monitor involved in the present disclosure, optionally, the frame structure is a four-frame structure, the four-frame structure includes a top surface and a bottom surface opposite to the top surface, the main body is connected to the top surface of the four-frame structure, and the bottom is flush with the bottom surface of the four-frame structure. In this case, since the bottom of the protruding structure is flush with the bottom surface of the four-frame structure, when the bottom surface of the four-frame structure is fixed, since the bottom surface of the four-frame structure and the arc-shaped portion are in the same plane, the arc-shaped portion will naturally be driven by the main body so that the arc-shaped portion is firmly pressed against the power supply contact. Thereby, the tightness of the contact between the second end and the power supply contact can be improved.

[0011] In addition, in the blood glucose monitor involved in the present disclosure, optionally, there is a preset angle between the main body and the bottom, and the preset angle ranges from 10 degrees to 20 degrees. In this case, within the range of the preset angle, the contact stability between the arc portion and the power supply contact can be improved, thereby improving the stability of the conduction between the second end and the functional circuit module.

[0012] In addition, in the blood glucose monitor involved in the present disclosure, optionally, the shrapnel switch is made of a magnetic conductive material, and the first end, the main body, and the second end are integrally formed. In this case, when the power supply line is turned on, the shrapnel switch can conduct electricity, and the shrapnel switch can change state under the action of magnetic force. In addition, by means of integral molding, the firmness of the connection between the first end, the main body, and the second end can be improved.

[0013] In addition, in the blood glucose monitor involved in the present disclosure, optionally, the first end and the main body are made of conductive materials, and the second end is made of magnetic conductive materials, so that the second end can be subjected to magnetic force to cause elastic deformation of the main body.

[0014] In addition, in the blood glucose monitor involved in the present disclosure, optionally, the functional circuit module is arranged on a printed circuit board, the printed circuit board has a pad connected to any pole of the power supply and independent of the functional circuit module, the first end is fixedly connected to the pad by welding, and the power supply contact is a copper contact arranged on the printed circuit board and connected to the functional circuit module. In this case, the various components inside the functional circuit module can be easily modularized and integrated through the printed circuit board; in addition, the firmness of the connection between the first end and the power supply can be improved by welding; in addition, the conductivity between the second end and the functional circuit module can be improved by the copper contact.

[0015] In addition, in the blood glucose monitor involved in the present disclosure, optionally, the transmitter includes a housing having a storage space, the power supply, the spring switch and the functional circuit module are arranged in the storage space, and the housing is made of a non-magnetic material. In this case, the power supply, the spring switch and the functional circuit module can be better sealed and protected by the housing; in addition, since the housing is made of a non-magnetic material, when the magnetic device applies a magnetic force to the spring switch, the interference of the housing on the magnetic force can be better reduced.

[0016] In addition, in the blood glucose monitor of the present disclosure, optionally, when the transmitter is assembled with the application device, the magnetic pole of the magnetic device is aligned with the second end. In this case, since the magnetic pole is usually a region with a strong magnetic field, by aligning the magnetic pole with the second end, the magnetic force applied by the magnetic device to the second end can be enhanced, thereby improving the agility of the second end to disconnect from the power supply contact.

[0017] According to the present disclosure, a blood glucose monitor having a zero-power consumption switch circuit can be provided, and the blood glucose monitor can maintain zero power consumption in an inactive state. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present disclosure will now be explained in further detail by way of examples with reference to the accompanying drawings, in which:

[0019] Figure 1 is a schematic diagram showing an application scenario of the blood glucose monitor involved in the example of the present disclosure.

[0020] Figure 2 is a schematic diagram showing a blood glucose monitor according to an example of the present disclosure.

[0021] Figure 3 is a block diagram showing the composition of a zero-power switching circuit involved in an example of the present disclosure.

[0022] Figure 4 Schematic diagram showing a power supply line involved in the example of the present disclosure.

[0023] Figure 5A It is a schematic diagram showing that the dome switch involved in the example of the present disclosure is in an off state.

[0024] Figure 5B is a schematic diagram showing that the dome switch involved in the example of the present disclosure is in a closed state.

[0025] Fig. 6A is an overall schematic diagram showing the dome switch involved in the example of the present disclosure.

[0026] Figure 6B is a side schematic diagram showing the dome switch involved in the example of the present disclosure.

[0027] Figure 6C is a bottom view schematic diagram showing the dome switch involved in the example of the present disclosure.

[0028] Description of reference numerals:

[0029] 1……host, 100……blood glucose monitor, 10……applying device, 20……transmitter, 30……zero power switch circuit, 12……magnetic device, 32……power supply, 34……spring switch, 36……functional circuit module, 341……first end, 342……second end, 343……main body, 3420……protrusion structure, 3421……bottom, 3422……arc-shaped portion, 3410……frame structure, 3410a……top surface, 3410b……bottom surface, 40……printed circuit board, 42……solder pad, 44……power supply contact, α……preset angle, d……gap. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0031] It should be noted that the terms "first", "second", "third" and "fourth" etc. in the specification and claims of the present disclosure and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or devices. In the following description, the same symbols are given to the same components, and repeated descriptions are omitted. In addition, the drawings are only schematic diagrams, and the ratio of the sizes of the components to each other or the shapes of the components may be different from the actual ones.

[0032] The present disclosure relates to a blood glucose monitor with a zero-power consumption switch circuit. The blood glucose monitor can maintain zero power consumption in an unactivated state, thereby effectively reducing the power consumption of a power supply.

[0033] The blood glucose monitor involved in the present disclosure is described below with reference to the accompanying drawings.

[0034] Figure 1 Schematic diagram showing an application scenario of the blood glucose monitor 100 involved in the example of the present disclosure. Figure 2 is a schematic diagram showing a blood glucose monitor 100 according to an example of the present disclosure.

[0035] The blood glucose monitor 100 of the present disclosure may include an application device 10 and a transmitter 20 (see Figure 1 or Figure 2 ). The emitter 20 may be detachably assembled from the application device 10. In other words, the emitter 20 may be detachably provided to the application device 10.

[0036] In some examples, the application device 10 can be configured to apply the emitter 20 to the host 1. Specifically, see Figure 1 When the transmitter 20 is mounted on the application device 10, the application device 10 can separate the transmitter 20 from the application device 10 by, for example, ejection to apply the transmitter 20 to the host 1. In some examples, the host 1 may represent a human body whose glucose concentration needs to be monitored.

[0037] In some examples, after the transmitter 20 is applied to the host 1, the transmitter 20 can be configured to continuously monitor the glucose concentration of the host 1. In some examples, enabling the blood glucose monitor 100 can mean applying the transmitter 20 to the host 1 by the application device 10 to continuously monitor the glucose concentration of the host 1 using the transmitter 20.

[0038] In some examples, when the blood glucose monitor 100 is not enabled (for example, the blood glucose monitor 100 is in a standby state or a storage state), the transmitter 20 can be assembled with the application device 10. Thus, it is convenient to package or store the blood glucose monitor 100. Figure 2 When the blood glucose monitor 100 is activated, the application device 10 can apply the transmitter 20 to the host 1 (eg, human body) to separate the application device 10 from the transmitter 20. In other words, the transmitter 20 can be separated from the application device 10 after being applied to the host 1.

[0039] Figure 3 is a block diagram showing the composition of the zero-power consumption switching circuit 30 involved in the example of the present disclosure. Figure 4 Schematic diagram showing a power supply line involved in the example of the present disclosure. Figure 5A is a schematic diagram showing that the dome switch 34 involved in the example of the present disclosure is in an off state. Figure 5B is a schematic diagram showing that the dome switch 34 involved in the example of the present disclosure is in a closed state.

[0040] In some examples, the blood glucose monitor 100 may include a zero power switch circuit 30. The zero power switch circuit 30 may be provided in the transmitter 20. In addition, the transmitter 20 may continuously monitor the glucose concentration of the host 1 through the zero power switch circuit 30.

[0041] For some examples, see Figure 3 The zero-power switch circuit 30 may include a functional circuit module 36 , and the functional circuit module 36 may be configured to collect subcutaneous glucose concentration information of a human body.

[0042] For some examples, see Figure 3 The zero-power switch circuit 30 may include a power supply 32 , and the power supply 32 may be configured to provide power to the functional circuit module 36 so that the functional circuit module 36 can work normally.

[0043] For some examples, see Figure 3 The zero-power switch circuit 30 may include a spring switch 34 , and the spring switch 34 is configured to control the power supply provided by the power supply 32 to the functional circuit module 36 .

[0044] For some examples, see Figure 3The zero power switch circuit 30 may include a power supply 32, a spring switch 34, and a functional circuit module 36. The power supply 32, the spring switch 34, and the functional circuit module 36 may be interconnected in sequence. Figure 4 One pole of the power supply 32 can be connected to the functional circuit module 36 via the spring switch 34, and the functional circuit module 36 can be connected to the other pole of the power supply 32 via the power supply line. Thus, the power supply 32, the spring switch 34 and the functional circuit module 36 can be interconnected in sequence to form a power supply line.

[0045] For some examples, see Figure 5A or Figure 5B , the power supply 32, the spring switch 34 and the functional circuit module 36 can be arranged in the transmitter 20. The transmitter 20 can use the functional circuit module 36 to continuously monitor the glucose concentration of the host 1. Specifically, the functional circuit module 36 can include a sensor, and the sensor can be partially or completely placed under the skin of the host 1. In some examples, after being placed under the skin, the sensor can react with glucose in the subcutaneous tissue fluid, thereby generating glucose concentration information of the host 1.

[0046] In some examples, the functional circuit module 36 may include a processing circuit, which may acquire glucose concentration information collected by the sensor and process the glucose concentration information.

[0047] In some examples, the functional circuit module 36 may include a wireless communication circuit. The wireless communication circuit may be configured to transmit the glucose concentration information to a reading device (e.g., a smart mobile terminal) via, for example, Bluetooth communication or near field communication (NFC). Thus, the host 1 can read and monitor its own glucose concentration.

[0048] In some examples, the power supply 32 can provide power to the functional circuit module 36 so that the functional circuit module 36 can work normally, that is, when the power supply line is turned on, the power supply 32 can provide power to the functional circuit module 36 so that the functional circuit module 36 can collect and transmit the subcutaneous glucose concentration information of the human body.

[0049] In some examples, the power source 32 may be a button battery, which can be conveniently installed in the transmitter 20 by utilizing the small size of the button battery.

[0050] In some examples, the power of the power source 32 can be considered to be mainly consumed when the functional circuit module 36 is working. In this case, when the blood glucose monitor 100 is not enabled (that is, when the functional circuit module 36 is not working), by cutting off the power supply line between the power source 32 and the functional circuit module 36, the power consumption of the power source 32 can be reduced, so that the blood glucose monitor 100 can be in a zero power consumption state when it is not enabled.

[0051] In some examples, the spring switch 34 can be used to control the on / off of the power supply line between the power source 32 and the functional circuit module 36 , thereby controlling the power supply and power off of the functional circuit module 36 .

[0052] In some examples, the application device 10 may include a magnetic device 12, which may be used to generate a magnetic field (see Figure 5A ). When the transmitter 20 and the applying device 10 are assembled together, the transmitter 20 can be located in the magnetic field generated by the magnetic device 12. At this time, the magnetic device 12 can apply magnetic force to the spring switch 34.

[0053] In some examples, the magnetic force applied to the spring switch 34 by the magnetic device 12 can change the state of the spring switch 34, thereby controlling the on or off of the power supply circuit. For example, the spring switch 34 can be switched to the off state under the action of the magnetic force, thereby disconnecting the power supply circuit between the power supply 32 and the functional circuit module 36.

[0054] For some examples, see Figure 5A When the transmitter 20 is assembled with the application device 10, the magnetic force applied by the magnetic device 12 to the spring switch 34 is greater than the separation threshold, and the spring switch 34 can be in an off state, thereby disconnecting the power supply line between the functional circuit module 36 and the power supply 32, so that the functional circuit module 36 no longer consumes the power of the power supply 32. In this way, the blood glucose monitor 100 can maintain zero power consumption when not enabled.

[0055] In some examples, the dome switch 34 being in the off state may indicate that the dome switch 34 is disconnected from the functional circuit module 36. In addition, the separation threshold may indicate a threshold at which the dome switch 34 is disconnected from the functional circuit module 36 under the magnetic force of the magnetic device 12.

[0056] In other examples, the dome switch 34 being in the off state may also indicate that the dome switch 34 is disconnected from the power source 32. In addition, the separation threshold may indicate a threshold at which the dome switch 34 is disconnected from the power source 32 under the magnetic force of the magnetic device 12.

[0057] In addition, in some examples, the dome switch 34 being in an off state may indicate that the dome switch 34 is disconnected from the power source 32 and the functional circuit module 36 , respectively.

[0058] In some examples, the disconnected state of the spring switch 34 may indicate that the power supply circuit is disconnected, no current flows through the power supply circuit, the power supply 32 no longer provides power to the functional circuit module 36, and the processing circuit and wireless communication circuit in the functional circuit module 36 stop operating.

[0059] Furthermore, when the spring switch 34 is in the off state, it can be considered that the functional circuit module 36 stops working due to power failure, the power supply 32 is in a state where no power is consumed, and the blood glucose monitor is in a power-off state. Thus, the power of the power supply 32 can be saved to the maximum extent.

[0060] For some examples, see Figure 5B When the transmitter 20 is separated from the application device 10, the magnetic force applied by the magnetic device 12 to the spring switch 34 is less than the separation threshold, and the spring switch 34 can be in a closed state, so that the power supply 32, the spring switch 34 and the functional circuit module 36 form a loop. In this case, when the blood glucose monitor 100 is activated, the application device 10 is separated from the transmitter 20, and the transmitter 20 is away from the magnetic field generated by the magnetic device 12, so that the magnetic force applied by the magnetic device 12 to the spring switch 34 is less than the separation threshold, and the spring switch 34 is in a closed state to connect the power supply line between the power supply 32 and the functional circuit module 36, so that the power supply 32 can provide power to the functional circuit module 36 so that the functional circuit module 36 can work normally.

[0061] In some examples, the dome switch 34 being in a closed state may mean that the dome switch 34 is in contact with the functional circuit module 36 and the power supply 32 at the same time, that is, the power supply 32, the dome switch 34 and the functional circuit module 36 form a loop, thereby enabling the power supply line to be turned on.

[0062] In some examples, the transmitter 20 may include a housing, the housing may have a storage space, and the power supply 32, the spring switch 34, and the functional circuit module 36 may be disposed in the storage space. In this case, the power supply 32, the spring switch 34, and the functional circuit module 36 can be better sealed and protected by the housing.

[0063] In some examples, the housing may be made of a non-magnetic material. That is, the power supply 32, the spring switch 34, and the functional circuit module 36 may be disposed within a housing made of a non-magnetic material. In this case, since the housing is made of a non-magnetic material, when the magnetic device 12 applies a magnetic force to the spring switch 34, the interference of the housing with the magnetic force can be reduced.

[0064] In some examples, the magnetic device 12 may be a permanent magnet, in which case the magnetic device 12 may have constant magnetism, thereby generating a relatively stable magnetic field.

[0065] For some examples, see Figure 5A or Figure 5B The spring switch 34 may include a first end 341, a second end 342, and a main body 343. The main body 343 may be used to connect the first end 341 and the second end 342. In addition, the main body 343 may be elastic. In this case, the main body 343 can be easily deformed under the action of an external force, so that the state of the spring switch 34 can be easily changed by the action of an external force.

[0066] In some examples, the main body 343 may be elastically deformed under the action of the magnetic field of the magnetic device 12 .

[0067] For some examples, see Figure 5A or Figure 5B The first end 341 can be fixedly connected to any pole of the power source 32, and the second end 342 can be detachably connected to the functional circuit module 36. Figure 5B The main body 343 can be configured to drive the second end 342 to abut against the power supply contact 42 of the functional circuit module 36 so that the second end 342 is connected to the functional circuit module 36.

[0068] Furthermore, when the first end 341 is fixedly connected to any pole of the power source 32, the main body 343 can be configured to drive the second end 342 to abut against the power supply contact 42 of the functional circuit module 36 to form a loop. In this case, the power supply line formed by the power source 32, the spring switch 34 and the functional circuit module 36 can be turned on, and the power source 32 can supply power to the functional circuit module 36 so that the functional circuit module 36 works normally.

[0069] See also Figure 4 , the loop can indicate that the power supply circuit formed by the power supply 32, the spring switch 34 and the functional circuit module 36 is in a conducting state. Thus, the power supply 32 can supply power to the functional circuit module 36.

[0070] However, the present disclosure is not limited thereto, and in other examples, the first end 341 can be detachably connected to any pole of the power source 32, and the second end 342 can be fixedly connected to the functional circuit module 36. Thus, the main body 343 drives the first end 342 to abut against any pole of the power source 32 to enable the power supply line to be turned on.

[0071] In addition, the first end 341 can be fixedly connected to any pole of the power source 32, and the second end 342 can also be fixedly connected to the functional circuit module 36. In this case, by dividing the main body 343 into two sections (for example, the first section and the second section), the first section and the second section are in contact and connected, and the first section and the second section are separated by the magnetic force of the magnetic device 12, so that the spring switch 34 is in an open state. In addition, after removing the magnetic force of the magnetic device 12, the first section and the second section can form contact, so that the spring switch 34 is in a closed state.

[0072] In addition, the first end 341 can be detachably connected to any pole of the power source 32, and the second end 342 can also be detachably connected to the functional circuit module 36. In this case, by providing an elastic element in the main body 343 and applying an elastic effect to the main body 343 by the elastic element, the first end 341 can be abutted against any pole of the power source 32 and the second end 342 can be abutted against the functional circuit module 36, so that the spring switch 34 is in a closed state. In addition, by using the magnetic force of the magnetic device 12 to overcome the elastic effect applied by the elastic element to the main body 343, the first end 341 can be disconnected from any pole of the power source 32 and the second end 342 can be disconnected from the functional circuit module 36, so that the spring switch 34 is in an open state.

[0073] For some examples, see Figure 5B The state in which the main body 343 drives the second end 342 to abut against the power supply contact 42 can be called the initial state of the main body 343 .

[0074] In some examples, when the main body 343 or the second end 342 is subjected to an external force, the main body 343 may be elastically deformed, and the initial state of the main body 343 may change accordingly. For example, the main body 343 may drive the second end 342 to move away from the power supply contact 42 of the functional circuit module 36, so that the main body 343 may drive the second end 342 to break away from the contact with the power supply contact 42. For example, see Figure 5A When the magnetic force applied by the magnetic device 12 to the spring switch 34 is greater than the separation threshold, the main body 343 is elastic and thus deforms elastically, thereby using the magnetic force to change the initial state of the main body 343, so that the main body 343 can drive the second end 342 to break away from the contact with the power supply contact 42. In this case, the spring switch 34 can be in the disconnected state, thereby disconnecting the power supply line between the functional circuit module 36 and the power supply 32, and the power supply 32 no longer supplies power to the functional circuit module 36.

[0075] In other words, the disconnected state of the spring switch 34 can be: the main body 343 of the spring switch 34 undergoes elastic deformation under the action of magnetic force, and the main body 343 can drive the second end 342 to break away from the contact with the power supply contact 42 of the functional circuit module 36.

[0076] For some examples, see Figure 5B When the magnetic force applied by the magnetic device 12 to the spring switch 34 is less than the separation threshold, the main body 343 can be restored to the initial state under the action of mechanical stress due to the elasticity of the main body 343, so that the main body 343 can drive the second end 342 to abut against the power supply contact 42 again. In this case, the spring switch 34 can be in a closed state, so that the power supply line between the functional circuit module 36 and the power supply 32 can be connected, and the power supply 32 can supply power to the functional circuit module 36.

[0077] In other words, the closed state of the spring switch 34 can be: after the spring switch 34 is away from the magnetic field, the main body 343 can be restored to the initial state to drive the second end 264 to abut against the power supply contact 42 of the functional circuit module 36 .

[0078] From the above, it can be seen that due to the structure and elasticity of the spring switch 34 itself, when the spring switch 34 is in the initial state, the second end 342 can have a certain fitting force with the power supply contact 42 under the drive of the main body 343, and this fitting force can represent the separation threshold.

[0079] In other words, when the transmitter 20 is assembled with the applying device 10 and the magnetic force applied by the magnetic device 12 to the spring switch 34 is greater than the fitting force, the second end 342 can be separated from the contact with the power supply contact 42, so that the spring switch 34 can be in an open state. In addition, when the transmitter 20 is separated from the applying device 10 and the magnetic force applied by the magnetic device 12 to the spring switch 34 is less than the fitting force, the second end 342 can abut against the power supply contact 42 under the mechanical stress of the main body 343, so that the spring switch 34 can be in a closed state.

[0080] Fig. 6A is an overall schematic diagram showing the dome switch 34 involved in the example of the present disclosure. Figure 6B is a side view of a dome switch 34 according to an example of the present disclosure, and Figure 6B It also shows a schematic diagram of the dome switch 34 in a natural state. Figure 6C 1 is a bottom view schematically showing the dome switch 34 involved in the example of the present disclosure.

[0081] For some examples, see Fig. 6AThe first end 341 may be a frame structure 3410, and the frame structure 3410 may represent a frame formed by connecting a plurality of surfaces to each other. Any surface of the frame structure 3410 may be fixedly connected to any pole of the power source 32.

[0082] For some examples, see Figure 6B , the second end portion 342 may be a protruding structure 3420. In addition, the protruding structure 3420 may include a bottom portion 3421 and an arc portion 3422, wherein the arc portion 3422 may protrude from the bottom portion 3421. In this case, when the second end portion 342 abuts against the power supply contact 42 of the functional circuit module 36, the arc portion 3422 abuts against the power supply contact 42, thereby improving the firmness and tightness of the contact between the second end portion 342 and the power supply contact 42.

[0083] In some examples, the bottom 3421 of the protrusion structure 3420 may be in the shape of a flat plate, and the arc portion 3422 of the protrusion structure 3420 may be in the shape of a semi-ellipsoid.

[0084] In some examples, the main body 343 may be in the shape of a long plate. One end of the main body 343 may be connected to the protrusion structure 3420, and the other end may be connected to the frame structure 3410. Figure 6B , the main body 343 can be connected to any surface of the bottom 3421 and the frame structure 3410, and the arc portion 3422 and the frame structure 3410 can be located on the same side of the main body 343. In this case, since the arc portion 3422 and the frame structure 3410 are located on the same side of the main body 343, it is convenient to set the power supply 32 and the power supply contact 42 on the same printed circuit board 40 (described later) and form a conductive connection on the printed circuit board 40.

[0085] In some examples, the frame structure 3410 may be a four-frame structure, which may include four interconnected surfaces. For example, the four-frame structure may include a top surface 3410a and a bottom surface 3410b opposite to the top surface 3410a (see Fig. 6A or Figure 6B ), in addition, the four-frame structure may further include a left side and a right side opposite to the left side.

[0086] In some examples, the main body 343 may be connected to the top surface 3410a of the four-frame structure. Figure 6B, the main body 343 can be connected to the top surface 3410a of the four-frame structure and the bottom 3421 of the protruding structure respectively, and the bottom 3421 can be flush with the bottom surface 3410b of the four-frame structure. In other words, when the spring switch 34 is in a natural state, the bottom 3421 can be in the same plane with the bottom surface 3410b of the four-frame structure. In this case, since the bottom 3421 of the protruding structure 3420 is flush with the bottom surface 3410b of the four-frame structure, when the bottom surface 3410b of the four-frame structure is fixed to the plane where the printed circuit board 40 (described later) is located, since the bottom surface 3410b of the four-frame structure is to be in the same plane with the arc-shaped portion 3422, the arc-shaped portion 3422 will naturally be driven by the main body 343 so that the arc-shaped portion 3422 is firmly pressed on the power supply contact 42. As a result, the tightness of the contact between the second end 342 and the power supply contact 42 can be improved.

[0087] For some examples, see Figure 6B , a preset angle α may be formed between the main body 343 and the bottom 3421, and the preset angle α may range from 10 to 20 degrees. In this case, within the range of the preset angle, the contact stability between the arc portion 3422 and the power supply contact 42 can be improved, thereby improving the stability of the conduction between the second end portion 342 and the functional circuit module 36.

[0088] In some examples, the preset angle α may be 10 degrees, 12 degrees, 14 degrees, 16 degrees, 18 degrees, or 20 degrees. Preferably, the preset angle α may be 12 degrees. Thus, the contact stability between the arc portion 3422 and the power supply contact 42 can be improved.

[0089] In some examples, the spring switch 34 can be made of a magnetic conductive material. In this case, when the power supply line is turned on, the spring switch 34 can conduct electricity, and the spring switch 34 can be changed in state by the magnetic force.

[0090] In some examples, the first end portion 341, the main body portion 343, and the second end portion 342 may be integrally formed. In this case, the integrally formed manner can improve the firmness of the connection between the first end portion 341, the main body portion 343, and the second end portion 342.

[0091] However, the present disclosure is not limited thereto, and in other examples, the first end 341 and the main body 343 may be made of a conductive material (e.g., a conductive non-magnetic material), and the second end 342 may be made of a magnetic conductive material. Thus, the second end 342 may be subjected to a magnetic force to cause the main body 343 to undergo elastic deformation.

[0092] In some examples, when the transmitter 20 is assembled with the application device 10, the magnetic pole of the magnetic device 12 can be aligned with the second end 342. In this case, since the magnetic pole is usually a region with a strong magnetic field, by aligning the magnetic pole with the second end 342, the magnetic force applied by the magnetic device 12 to the second end 342 can be enhanced, thereby improving the agility of the second end 342 to disconnect from the power supply contact 42.

[0093] In some examples, the transmitter 20 may include a printed circuit board 40, and the functional circuit module 36 may be disposed on the printed circuit board 40. In this case, the printed circuit board 40 can facilitate modularization and integration of various components inside the functional circuit module 36.

[0094] For some examples, see Figure 4 The printed circuit board 40 may have a pad, which may be connected to any pole of the power source 32, and the pad may be independent of the functional circuit module 36. In some examples, the first end 341 of the spring switch 34 may be fixedly connected to the pad by welding. Thus, the firmness of the fixed connection between the first end 341 and the power source 32 can be improved.

[0095] In some examples, when the first end 341 is a four-frame structure, the bottom surface 3410b of the four-frame structure can be fixedly connected to the pad by welding, thereby further improving the firmness of the fixed connection between the first end 341 and the power source 32.

[0096] Furthermore, the first end portion 341 can be attached to the pad by SMT process. That is, the bottom surface 3410b of the four-frame structure can be attached to the pad by SMT process. In this case, a strong weld can be formed between the first end portion 341 and the pad; in addition, the welding process between the first end portion 341 and the pad can be easily automated and mass-produced by SMT process.

[0097] In addition, SMT process can represent SMT technology, that is, surface mount technology (Surface Mounted Technology, SMT).

[0098] For some examples, see Figure 6C , the bottom surface 3410b of the four-frame structure may have a gap d, and the gap d may be located in the middle of the bottom surface 3410b. In this case, when soldering the bottom surface 3410b, the solder can be filled in the gap d, thereby helping to improve the firmness of the soldering between the bottom surface 3410b and the pad. In some examples, the gap d may extend along the length direction of the main body 343 (see Figure 6C ).

[0099] In some examples, the power supply contact 42 may be a copper contact disposed on the printed circuit board 40 and connected (ie, conductively connected) to the functional circuit module 36 , thereby improving the conductivity between the second end 342 and the functional circuit module 36 .

[0100] According to the present disclosure, a blood glucose monitor 100 having a zero-power consumption switch circuit 30 can be provided, and the blood glucose monitor 100 can maintain zero power consumption in an inactive state.

[0101] Although the present disclosure is specifically described above in conjunction with the accompanying drawings and examples, it is to be understood that the above description does not limit the present disclosure in any form. Those skilled in the art may modify and change the present disclosure as needed without departing from the essential spirit and scope of the present disclosure, and these modifications and changes all fall within the scope of the present disclosure.

Claims

1. A blood glucose monitor with a zero-power switching circuit, the blood glucose monitor comprising an application device and a transmitter detachably assembled from the application device, the application device being configured to apply the transmitter to a host, the application device comprising a magnetic device, characterized in that: The zero-power switch circuit includes a power supply, a spring switch and a functional circuit module arranged in the transmitter, wherein the power supply, the spring switch and the functional circuit module are interconnected in sequence. When the transmitter is assembled with the applying device, the magnetic force applied by the magnetic device to the spring switch is greater than the separation threshold, and the spring switch is in a disconnected state; When the transmitter is separated from the applying device, the magnetic force applied by the magnetic device to the spring switch is less than the separation threshold, and the spring switch is in a closed state, so that the power supply, the spring switch and the functional circuit module form a loop. The separation threshold is a threshold at which the spring switch is disconnected from the functional circuit module or the power supply under the action of the magnetic force of the magnetic device.

2. The blood glucose monitor according to claim 1, characterized in that: The spring switch includes a first end, a second end, and an elastic main body for connecting the first end and the second end. The first end is fixedly connected to any pole of the power supply, and the main body is configured to drive the second end to abut against the power supply contact of the functional circuit module to form the loop.

3. The blood glucose monitor according to claim 2, characterized in that: The main body is in the shape of a long plate, the first end is a frame structure, the second end is a protrusion structure, the protrusion structure includes a bottom and an arc-shaped portion protruding from the bottom, the main body is respectively connected to the bottom and any one surface of the frame structure, and the arc-shaped portion and the frame structure are located on the same side of the main body.

4. The blood glucose monitor according to claim 3, characterized in that: The frame structure is a four-frame structure, which includes a top surface and a bottom surface opposite to the top surface, the main body is connected to the top surface of the four-frame structure, and the bottom is flush with the bottom surface of the four-frame structure.

5. The blood glucose monitor according to claim 3, characterized in that: A preset angle is formed between the main body and the bottom, and the preset angle ranges from 10 degrees to 20 degrees.

6. The blood glucose monitor according to claim 2, characterized in that: The spring switch is made of magnetically conductive and electrically conductive material, and the first end, the main body, and the second end are integrally formed.

7. The blood glucose monitor according to claim 2, characterized in that: The first end portion and the main body portion are made of conductive material, and the second end portion is made of magnetic conductive material.

8. The blood glucose monitor according to claim 2, characterized in that: The functional circuit module is arranged on a printed circuit board, and the printed circuit board has a pad connected to any pole of the power supply and independent of the functional circuit module, the first end is fixedly connected to the pad by welding, and the power supply contact is a copper contact arranged on the printed circuit board and connected to the functional circuit module.

9. The blood glucose monitor according to claim 1, characterized in that: The transmitter comprises a shell having a containing space, the power supply, the spring switch and the functional circuit module are arranged in the containing space, and the shell is made of non-magnetic conductive material.

10. The blood glucose monitor according to claim 2, characterized in that: When the transmitter is assembled with the application device, the magnetic poles of the magnetic device are aligned with the second end.

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