CN211122897U

CN211122897U - Installation device of thermistor on blood glucose meter and blood glucose meter

Info

Publication number: CN211122897U
Application number: CN201921602443.2U
Authority: CN
Inventors: 丁建林; 韩剑翠; 吴龙; 沈宏波
Original assignee: Vivachek Biotech Hangzhou Co ltd
Current assignee: Hangzhou Weice Biotechnology Co.,Ltd.
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-07-28
Anticipated expiration: 2029-09-25

Abstract

The utility model provides a thermistor's installation device on blood glucose meter and blood glucose meter thereof belongs to blood glucose meter detection device field. The mounting device for the thermistor on the blood glucose meter comprises a shell and the thermistor arranged in the shell, wherein the thermistor comprises a lead and a sensing head arranged at one end of the lead, and the shell is provided with a fixing plate used for fixing the lead. The utility model has the advantages of the source and the thermistor that generate heat of blood glucose meter self carry out abundant isolation to reduce blood glucose meter self and generate heat and carry out the error of rectifying to thermistor and instrument all ring edge border temperature.

Description

Installation device of thermistor on blood glucose meter and blood glucose meter

Technical Field

The utility model belongs to blood glucose meter detection device field, in particular to thermistor's installation device on blood glucose meter and blood glucose meter thereof.

Background

The blood glucose meter is an electronic instrument for measuring blood glucose level, and the detection method of blood glucose test products in the current market mainly comprises an electrochemical method and a photochemical method, wherein the electrochemical method or the photochemical method is adopted, and an enzyme reaction is the basis of the test. The enzyme reaction is greatly influenced by the temperature, so that the temperature sensor arranged in the glucometer can automatically correct the temperature, and the test result is not influenced by the temperature during the test. The thermistor is a built-in temperature sensor in the blood glucose meter for temperature correction.

The blood glucose meter also begins to develop towards multifunctional intellectualization, so the power consumption of the meter is also increased more and more, the self heating of the meter is higher than that of the traditional blood glucose meter, and errors are brought to the test and correction of the thermistor.

Therefore, the thermistor on the existing blood glucose meter is often changed into a lead-type device from a patch-type device, mainly in order to enable the thermistor to be far away from a heating source of the blood glucose meter as far as possible, and some multifunctional intelligent blood glucose meter products are provided with a flexible lead-type NTC thermistor for temperature calibration during blood glucose detection, but most lead-type NTC thermistors are instable in installation and positioning in the blood glucose meter, and leads are easy to shift.

Disclosure of Invention

The first purpose of the utility model is to provide a mounting device of a thermistor on a blood glucose meter, which aims at the above problems in the prior art; the second objective of the utility model is to provide a blood glucose meter.

The first objective of the present invention can be achieved by the following technical solutions: the mounting device for the thermistor on the blood glucose meter is characterized by comprising a shell and the thermistor arranged in the shell, wherein the thermistor comprises a lead and a sensing head arranged at one end of the lead, and the shell is provided with a fixing plate for fixing the lead.

In the above mounting device for the thermistor on the blood glucose meter, a cavity for accommodating the sensor head is arranged between the fixing plate and the housing.

In the above installation device for the thermistor on the blood glucose meter, the housing includes a front housing and a rear housing, and the front housing and the rear housing are connected in a snap-fit manner.

In the above-mentioned thermistor's installation device on blood glucose meter, the fixed plate include with preceding shell fixed connection's front bezel and with backshell fixed connection's back plate, the front bezel be provided with the bayonet socket, the back plate be provided with wire casing apron, the bayonet socket is used for supplying the lead wire card to go into, wire casing apron is used for the butt bayonet socket in order to form the through-hole, makes the lead wire fix in the through-hole that bayonet socket and wire casing apron formed.

In the above-mentioned mounting device for the thermistor on the blood glucose meter, the bayonet is located at the bottom end of the sensing head.

In the above mounting device for the thermistor on the blood glucose meter, the sensing head is connected with the circuit board through a lead, and at least one isolation plate is arranged between the circuit board and the sensing head.

In the above-mentioned thermistor's installation device on blood glucose meter, the division board include with preceding shell fixed connection the preceding baffle and with backshell fixed connection's back baffle, preceding baffle be provided with and be used for supplying the positioning channel groove that the lead wire card was gone into, work as preceding shell and backshell lock connect, preceding baffle and back baffle butt.

In the above mounting device for the thermistor on the blood glucose meter, at least one isolation cavity is arranged between the isolation plate and the fixing plate, and the isolation cavity is provided with a vent hole.

In the above mounting device for the thermistor on the blood glucose meter, a supporting plate for supporting the sensing head is arranged in the cavity, and the cavity is provided with an air vent.

The second objective of the present invention can be achieved by the following technical solutions: a blood glucose meter is characterized by comprising a blood glucose meter body and the mounting device of the thermistor on the blood glucose meter.

The utility model discloses a theory of operation: thermistor sets up in the casing, and thermistor's lead wire is fixed through the fixed plate, and sensing head is used for the induction temperature, the utility model discloses a fixed lead wire of fixed plate has been set up to prevent that the lead wire from shifting.

Compared with the prior art, the utility model has the advantages of it is following:

1. the utility model discloses thermistor sets up in the casing, and thermistor's lead wire is fixed through the fixed plate, and sensing head is used for the induction temperature, the utility model discloses a fixed lead wire of fixed plate has been set up to prevent that the lead wire from shifting.

2. The utility model discloses a bayonet socket is located the bottom of sensing head, and the bayonet socket is located the top of lead wire promptly, and the wire casing apron is used for the butt bayonet socket in order to form the through-hole, makes the lead wire fix in the through-hole that bayonet socket and wire casing apron formed to the position of fixed sensing head is unchangeable, because the bayonet socket is located the bottom of sensing head, prevents and reduces the swing of sensing head.

3. The utility model discloses a positioning channel section and bayonet socket all can be used to the location of lead wire, during the installation, directly go into the lead wire card can in positioning channel section and bayonet socket.

4. The utility model discloses a division board and isolation chamber are used for fully keeping apart the source and the thermistor that generate heat of blood glucose meter self to reduce blood glucose meter self and generate heat and carry out the error of rectifying to thermistor and instrument all ring edge border temperature.

5. The utility model discloses an keep apart chamber and cavity and all be provided with the air vent, the air vent makes to keep apart chamber and cavity and external environment intercommunication, lets keep apart chamber and thermistor sensing head and instrument all ring edge borders simultaneously and has better heat transfer effect. Thereby reducing the error of the blood glucose meter which generates heat to correct the thermistor and the ambient temperature around the meter.

Drawings

Fig. 1 is a schematic diagram of the explosion structure of the present invention;

FIG. 2 is a schematic structural view of the interior of the front shell of the present invention;

fig. 3 is a schematic structural view of the inside of the rear case of the present invention;

FIG. 4 is a schematic sectional view of the present invention;

FIG. 5 is a front view of a blood glucose meter with a thermistor mounting device;

FIG. 6 is a rear view of the blood glucose meter with thermistor attachment.

In the figure, 1, a housing; 2. a thermistor; 3. a lead wire; 4. a sensor head; 5. a fixing plate; 6. a cavity; 7. a front housing; 8. a rear housing; 9. a front plate; 10. a back plate; 11. a bayonet; 12. a trunking cover plate; 13. a circuit board; 14. a separator plate; 15. a front bulkhead; 16. a rear bulkhead; 17. positioning the clamping groove; 18. an isolation chamber; 19. a vent hole; 20. and a support plate.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1-6, a mounting device for a thermistor on a blood glucose meter comprises a housing 1 and a thermistor 2 arranged in the housing 1, wherein the thermistor 2 comprises a lead 3 and a sensing head 4 arranged at one end of the lead 3, and the housing 1 is provided with a fixing plate 5 for fixing the lead 3.

In further detail, a cavity 6 for accommodating the sensor head 4 is provided between the fixing plate 5 and the housing 1. The shell 1 comprises a front shell 7 and a rear shell 8, and the front shell 7 and the rear shell 8 are buckled and connected. The fixing plate 5 comprises a front plate 9 fixedly connected with the front shell 7 and a rear plate 10 fixedly connected with the rear shell 8, the front plate 9 is provided with a bayonet 11, the rear plate 10 is provided with a wire slot cover plate 12, the bayonet 11 is used for clamping a lead wire 3, the wire slot cover plate 12 is used for abutting against the bayonet 11 to form a through hole, and the lead wire 3 is fixed in the through hole formed by the bayonet 11 and the wire slot cover plate 12.

Bayonet 11 is located sensing head 4's bottom, and bayonet 11 is located the top of lead wire 3 promptly to through wire casing apron 12 butt bayonet 11 in order to form the through-hole, make lead wire 3 fix in the through-hole that bayonet 11 and wire casing apron 12 formed, thereby fixed sensing head 4's position is unchangeable, because bayonet 11 is located sensing head 4's bottom, prevents and reduces sensing head 4's swing.

To elaborate, the sensor head 4 is connected to a circuit board 13 through leads 3, and at least one isolation plate 14 is disposed between the circuit board 13 and the sensor head 4. At least one separation chamber 18 is provided between the separation plate 14 and the fixing plate 5. The isolation plate 14 and the isolation cavity 18 are used for sufficiently isolating the heat source of the blood glucose meter from the thermistor 2, so that errors caused by the self-heating of the blood glucose meter in correcting the thermistor 2 and the ambient temperature of the blood glucose meter are reduced.

In further detail, the isolation plate 14 includes a front isolation plate 15 fixedly connected with the front shell 7 and a rear isolation plate 16 fixedly connected with the rear shell 8, the front isolation plate 15 is provided with a positioning clamping groove 17 for the lead 3 to be clamped in, when the front shell 7 and the rear shell 8 are buckled and connected, the front isolation plate 15 abuts against the rear isolation plate 16. Positioning slot 17 and bayonet 11 all can be used to the location to lead wire 3, during the installation, directly can with lead wire 3 card go into positioning slot 17 and bayonet 11 in.

In further detail, the isolation chamber 18 is provided with a vent hole 19. A support plate 20 for supporting the sensor head 4 is arranged in the cavity 6, and the cavity 6 is provided with a vent hole 19. The vent hole 19 allows the isolation chamber 18 and the cavity 6 to communicate with the external environment, and allows the isolation chamber 18 and the sensor head 4 of the thermistor 2 to have a good heat transfer effect with the surrounding environment of the instrument. Thereby reducing the error of the blood glucose meter which generates heat to correct the thermistor 2 and the ambient temperature around the meter.

During the installation, open casing 1 after, install circuit board and thermistor 2 on preceding shell 7, during the top embedding bayonet 11 of lead wire 3, division board 14 can be 1 also can be a plurality of, for example the quantity of division board 14 is 2, during the middle part of lead wire 3 and the lower extreme card of lead wire 3 go into positioning slot 17, then with rear housing 8 and preceding shell 7 lid lock connection together. The slot cover plate 12 is abutted against the bayonet 11 to form a through hole, and the edge of the rear partition plate 16 is abutted against the edge of the front partition plate 15, namely, the thermistor 2 is fixedly installed in the shell 1.

Bayonet 11 and positioning slot 17 are both used for fixing lead wire 3, and bayonet 11 is located the bottom of sensing head 4, prevents and reduces the swing of sensing head 4 that leads to because lead wire 3 removes.

Isolation plate 14 and isolation chamber 18 isolate sensor head 4 from the instrument's own heat source, thereby reducing the effect of the instrument's own heat source on sensor head 4.

The vent hole 19 enables the isolation cavity 18 and the cavity 6 to be communicated with the surrounding environment, improves the heat transfer effect of the isolation cavity 18 and the cavity 6 with the surrounding environment, and reduces the error of the self-heating of the blood glucose meter in correcting the temperature of the thermistor 2 and the surrounding environment of the meter.

The isolation chamber 18 may also be filled with an insulating material such as insulating cotton to isolate the heat source from the sensor head 4.

The distance between the sensor head 4 and the heat source is changed to affect the speed and the effect of heat transfer, so that the sensor head 4 of the thermistor 2 is fixed at a position, the distance between the sensor head 4 and the heat source of the instrument is kept unchanged relatively, and the influence of the heat source of the instrument on the heat transfer of the sensor head 4 of the thermistor 2 due to the change of the distance can be reduced.

A blood glucose meter comprises a blood glucose meter body and the mounting device of the thermistor on the blood glucose meter.

The lead 3 can also be fixed on the mounting device by glue or a pressing plate screw, so that the swinging of the thermistor sensing head is prevented and reduced, and the influence of the heat source of the instrument on the heat transfer of the thermistor 2 sensing head 4 due to the distance change is reduced.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the housing 1, the thermistor 2, the lead wire 3, the sensor head 4, the fixing plate 5, the cavity 6, the front case 7, the rear case 8, the front plate 9, the rear plate 10, the bayonet 11, the slot cover plate 12, the circuit board 13, the isolation plate 14, the front partition plate 15, the rear partition plate 16, the positioning slot 17, the isolation cavity 18, the vent hole 19, the support plate 20, etc. are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The mounting device for the thermistor on the blood glucose meter is characterized by comprising a shell (1) and the thermistor (2) arranged in the shell (1), wherein the thermistor (2) comprises a lead (3) and a sensing head (4) arranged at one end of the lead (3), and the shell (1) is provided with a fixing plate (5) for fixing the lead (3).

2. A thermistor mounting device on a blood glucose meter according to claim 1, characterized in that a cavity (6) is provided between the fixing plate (5) and the housing (1) for accommodating the sensor head (4).

3. The mounting device for the thermistor on the blood glucose meter according to claim 1, characterized in that the housing (1) comprises a front shell (7) and a rear shell (8), and the front shell (7) and the rear shell (8) are connected in a snap-fit manner.

4. The mounting device for the thermistor on the blood glucose meter is characterized in that the fixing plate (5) comprises a front plate (9) fixedly connected with the front shell (7) and a rear plate (10) fixedly connected with the rear shell (8), the front plate (9) is provided with a bayonet (11), the rear plate (10) is provided with a wire slot cover plate (12), the bayonet (11) is used for clamping the lead (3), the wire slot cover plate (12) is used for abutting against the bayonet (11) to form a through hole, and the lead (3) is fixed in the through hole formed by the bayonet (11) and the wire slot cover plate (12).

5. A thermistor mounting device on a blood glucose meter according to claim 4, characterized in that the bayonet (11) is located at the bottom end of the sensor head (4).

6. A thermistor mounting device on a blood glucose meter according to claim 3, characterized in that the sensor head (4) is connected to a circuit board (13) by means of leads (3), and at least one spacer (14) is arranged between the circuit board (13) and the sensor head (4).

7. The mounting device for the thermistor on the blood glucose meter as claimed in claim 6, wherein the isolation plate (14) comprises a front isolation plate (15) fixedly connected with the front housing (7) and a rear isolation plate (16) fixedly connected with the rear housing (8), the front isolation plate (15) is provided with a positioning slot (17) for the lead (3) to be clamped in, and when the front housing (7) and the rear housing (8) are buckled and connected, the front isolation plate (15) is abutted against the rear isolation plate (16).

8. A thermistor mounting device on a blood glucose meter according to claim 6, characterized in that at least one separation chamber (18) is arranged between the separation plate (14) and the fixing plate (5), and the separation chamber (18) is provided with a vent (19).

9. A thermistor mounting device for blood glucose meters according to claim 2, characterized in that the cavity (6) is provided with a support plate (20) for supporting the sensor head (4), and the cavity (6) is provided with a vent (19).

10. A blood glucose meter comprising a blood glucose meter body and a thermistor mounting device as claimed in any one of claims 1 to 9.