CN216746501U

CN216746501U - Electronic thermometer capable of quickly measuring temperature

Info

Publication number: CN216746501U
Application number: CN202123285567.2U
Authority: CN
Inventors: 林丹龙; 张佳; 许超; 赵冉; 崔灿; 赵帅
Original assignee: Jiangsu Yuyue Medical Equipment and Supply Co Ltd; Jiangsu Yuyue Information System Co Ltd; Nanjing Yuyue Software Technology Co Ltd
Current assignee: Jiangsu Yuyue Medical Equipment and Supply Co Ltd; Jiangsu Yuyue Information System Co Ltd; Nanjing Yuyue Software Technology Co Ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-06-14
Anticipated expiration: 2031-12-24

Abstract

A rapid temperature measurement electronic thermometer comprises a sensor assembly, a movement assembly and a shell assembly; the sensor assembly is combined with the shell assembly in an injection molding mode, and a thermistor in the sensor assembly is fixedly arranged and exposed out of the head of the shell assembly; the movement assembly is embedded into the shell assembly for positioning, and the thermistor is electrically connected with a PCB in the movement assembly. Compared with the prior art, the temperature measurement device is ingenious in structural design, not only is beneficial to reducing production difficulty and production cost, but also is more beneficial to improving the speed of temperature measurement and the accuracy of temperature measurement, and has better practical progress.

Description

Electronic thermometer capable of quickly measuring temperature

Technical Field

The utility model relates to medical instruments, in particular to a rapid temperature measurement electronic thermometer.

Background

The electronic thermometer is a convenient and quick temperature measuring device, has the advantages of no mercury pollution, high measuring speed and accurate reading display compared with the traditional mercury thermometer, has a memory function partially, and is widely used in the environments of families, hospitals and the like.

The existing electronic thermometer mainly comprises a temperature sensor, a steel cap, a shell, a temperature measuring circuit and the like, wherein the sensor is fixed in the steel cap through glue. However, this solution has the following drawbacks:

firstly, when actual temperature is measured, the surface of a measured object is in direct contact with a steel cap, the temperature needs to be transmitted to the steel cap, then to glue, and then to a temperature sensor from the glue, so that the transmission rate is low, and a large amount of heat loss is generated in the process, so that the thermometer cannot truly reflect the actual temperature of the measured object;

secondly, the assembly process of the thermometer is complicated, the thermistor needs to penetrate through the hole cavity of the shell of the electronic thermometer during installation and is exposed out of the head of the shell, then the thermistor is fixed on the steel cap by using glue, and the next process can be carried out after the installation of the thermistor and the glue are solidified generally after waiting for 8-12 hours, so that the production efficiency and the production cost are greatly influenced, and the thermometer is not suitable for the requirement of mass low-cost rapid production;

thirdly, the steel cap and the plastic part are bonded and fixed through glue in the installation process, but the conditions that the sealing is not in place and the sensor is filled with water, so that the temperature measurement is inaccurate, often exist in the actual process;

fourthly, in the actual installation process, because the sensor needs to be bonded in the steel cap by glue, the sensor can not be ensured to be tightly attached to the steel cap, even an air gap exists between the sensor and the steel cap, the temperature measuring speed of the electronic thermometer is seriously reduced, and the product production process has great defects.

Therefore, how to solve the above-mentioned deficiencies of the prior art is a problem to be solved by the present invention.

Disclosure of Invention

The utility model aims to provide a rapid temperature measurement electronic thermometer.

In order to achieve the purpose, the utility model adopts the technical scheme that:

a rapid temperature measurement electronic thermometer comprises a sensor assembly, a core assembly and a shell assembly;

the sensor assembly is combined with the shell assembly in an injection molding mode, and a thermistor in the sensor assembly is fixedly arranged and exposed out of the head of the shell assembly;

the core assembly is embedded into the shell assembly for positioning, and the thermistor is electrically connected with a PCB in the core assembly.

The relevant content in the above technical solution is explained as follows:

1. in the above scheme, the housing assembly can provide the accommodating space and the fixed mounting position of the sensor assembly and the movement assembly, and can be a plastic part formed by injection molding. In the injection molding process, the sensor assembly needs to be placed into the reserved slot position, then the shell is subjected to injection molding, the sensor assembly is wrapped by the molten plastic particles, the sensor assembly is fixed in the shell assembly in the molding process of the shell assembly, and finally, the sensor assembly and the shell assembly are cooled into an integral component.

2. In the above scheme, the sensor assembly is connected to the temperature measuring loop of the core assembly and used for sensing the surface temperature of the measured object, and the sensed temperature is transmitted to the core assembly in a mode of causing circuit signal change in the core assembly through resistance change.

3. In the above scheme, the two pins of the thermistor are electrically connected with the PCB of the core assembly through conducting strips or wires respectively. A temperature measuring loop is arranged in the PCB and is electrically connected with the PCB of the movement assembly through a pin of the thermistor, so that the sensor assembly is electrically connected with the temperature measuring loop of the movement assembly.

The core assembly receives the temperature value sensed by the sensor assembly, converts the temperature value into an electric signal, processes the electric signal and informs information such as the temperature value to a user.

4. In the above scheme, the sensor assembly further comprises a fixing block, and the thermistor is fixedly assembled with the fixing block.

The two fixing blocks are both conductive fixing blocks, and the two fixing blocks are assembled with the two pins of the thermistor in a one-to-one correspondence mode. The fixing block can be provided with pin through holes, the thermistor is ensured to be fixed on the fixing block in a mode that each pin penetrates through one pin through hole and is welded, and the thermistor is generally provided with a high-temperature-resistant protective layer.

Or one fixing block is arranged and is a non-conductive fixing block, and two pins of the thermistor extend out of the fixing block.

5. In the above scheme, the movement assembly may include a metal spring, an inner bracket, positive and negative power supply plates, a key, a liquid crystal screen, a conductive adhesive tape, a PCB, and a buzzer conductor, but is not limited to the above structure, and the specific structure of the movement assembly may adopt the prior art, and is not the utility model point of the present application, so the present application is not described in detail;

one end of the metal elastic sheet is electrically connected with the pin of the thermistor, and the other end of the metal elastic sheet is connected with a circuit on the PCB.

6. In the above scheme, an installation limiting part is further arranged in the shell assembly, and the core assembly is detachably assembled at the installation limiting part of the shell assembly.

In the installation, only need with the inner bracket of each part installation of core assembly, again with inner bracket installation in the fixed position of the integrative component of sensor subassembly and casing constitution, metal shrapnel on the core assembly and the conducting strip on the sensor subassembly alright with the contact, accomplish necessary subassemblies such as surplus casing and battery and can accomplish the equipment process, carry out the circular telegram and detect. Compared with the existing electronic thermometer, the electronic thermometer is only required to be assembled, the glue fixing and other processing procedures cannot be used, and the processing efficiency is greatly improved.

7. In the above scheme, the head cover of casing subassembly is equipped with the disposable protective film of detachable, and this disposable protective film covers thermistor. The probe (thermistor) of the sensor assembly can be prevented from being polluted in the measuring process, and meanwhile, different testees cannot repeatedly contact the same surface, so that cross infection is avoided.

The working principle and the advantages of the utility model are as follows:

1. the sensor assembly and the shell assembly are integrated by injection molding, the movement assembly can be directly and electrically connected with the thermistor of the sensor assembly, the thermistor does not need to be welded, and processes such as threading, gluing and the like are omitted;

2. the thermistor is exposed, so that direct contact with a measured object can be realized, the temperature measurement speed is increased, the heat loss is reduced, and the temperature measurement accuracy is improved;

3. a heat conduction medium between the thermistor and the measured object is not needed, so that the heat loss in the heat conduction process is reduced, and the temperature measurement speed and the temperature measurement accuracy are improved;

4. the product can be directly produced in a mode of injection molding and assembly without waiting for glue solidification, so that the assembly time is shortened, the assembly efficiency is improved, the automatic assembly is easy, and the mass production with low cost is convenient and rapid;

5. the appearance of the thermistor does not need to fix the steel cap by glue, so that the air gap between the sensor and the steel cap cannot be generated in the production process of the thermistor, and the problem of reduction of the waterproof performance caused by poor sealing performance cannot be caused.

Compared with the prior art, the temperature measurement device is ingenious in structural design, not only is beneficial to reducing production difficulty and production cost, but also is more beneficial to improving the speed of temperature measurement and the accuracy of temperature measurement, and has better practical progress.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a first cross-sectional view (in elevation) of an embodiment of the present invention;

FIG. 3 is a second cross-sectional view (top view) of an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a sensor assembly according to an embodiment of the present invention;

FIG. 5 is a schematic view of a thermistor associated with a mounting block in a sensor assembly according to an embodiment of the present invention;

fig. 6 is an exploded view of a cartridge assembly in accordance with an embodiment of the present invention;

fig. 7 is a reference diagram of a use state of the embodiment of the present invention.

In the above drawings: 1. a sensor assembly; 2. a movement assembly; 3. a housing assembly; 4. a thermistor; 5, PCB board; 6. a pin; 7. a conductive sheet; 8. a fixed block; 9. punching a pin; 10. a metal spring sheet; 11. an inner bracket; 12. positive and negative pole pieces of a power supply; 13. pressing a key; 14. a liquid crystal screen; 15. a conductive adhesive tape; 16. a buzzer conductor; 17. installing a limiting part; 18. a disposable protective film; 19. a buzzer.

Detailed Description

The utility model is further described with reference to the following figures and examples:

example (b): the present disclosure will be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the disclosure may be shown and described, and which, when modified and varied by the techniques taught herein, can be made by those skilled in the art without departing from the spirit and scope of the disclosure.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms "a", "an", "the" and "the", as used herein, also include the plural forms.

As used herein, "connected" or "positioned" refers to two or more elements or devices being in direct physical contact with each other or in indirect physical contact with each other, and may also refer to two or more elements or devices being in operation or acting on each other.

As used herein, the terms "comprising," "including," "having," and the like are open-ended terms that mean including but not limited to.

As used herein, the term (terms), unless otherwise indicated, shall generally have the ordinary meaning as commonly understood by one of ordinary skill in the art, in this written description and in the claims. Certain terms used to describe the disclosure are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the disclosure.

Referring to the attached drawings 1-7, the electronic thermometer for rapid temperature measurement comprises a sensor assembly 1, a movement assembly 2 and a shell assembly 3.

The sensor assembly 1 and the housing assembly 3 are combined by injection molding, and the thermistor 4 in the sensor assembly 1 is fixedly arranged and exposed out of the head of the housing assembly 3.

The movement assembly 2 is embedded into the shell assembly 3 for positioning, and the thermistor 4 is electrically connected with a PCB (printed circuit board) 5 in the movement assembly 2. A temperature measuring loop is arranged in the PCB 5, and the pin 6 of the thermistor 4 is electrically connected with the PCB 5 of the movement assembly 2, so that the sensor assembly 1 is electrically connected with the temperature measuring loop of the movement assembly 2.

The sensor assembly 1 is connected to the temperature measuring loop of the movement assembly 2 and used for sensing the surface temperature of a measured object and transmitting the sensed temperature to the movement assembly 2 in a mode that the resistance changes to cause circuit signals in the movement assembly 2 to change. The core assembly 2 receives the temperature value sensed by the sensor assembly 1, converts the temperature value into an electric signal, processes the electric signal and informs information such as the temperature value to a user.

Preferably, the housing component 3 can provide the accommodating space and the fixed mounting position for the sensor component 1 and the movement component 2, and can be a plastic part formed by injection molding. In the process of moulding plastics, need put into the trench of reserving good with sensor assembly 1, then carry out the moulding plastics of casing subassembly 3, fused plastic pellet wraps up sensor assembly 1, and then realizes being fixed in casing subassembly 3 with sensor assembly 1 in casing subassembly 3's the forming process, and finally after the cooling, sensor assembly 1 and casing subassembly 3 become integrative component.

Preferably, the two pins 6 of the thermistor 4 are electrically connected to the PCB board 5 of the movement assembly 2 through conductive sheets 7 (or conductive wires), respectively.

Preferably, the sensor assembly 1 further comprises a fixing block 8, the thermistor 4 is fixedly assembled with the fixing block 8, wherein two fixing blocks 8 are arranged and are conductive fixing blocks, and the two fixing blocks 8 are assembled with the two pins 6 of the thermistor 4 in a one-to-one correspondence manner. Specifically, the fixing block 8 may be provided with pin through holes 9, the thermistor 4 is secured to the fixing block 8 by means of each pin 6 passing through one pin through hole 9 and welding, and the thermistor 4 is generally provided with a high temperature resistant protective layer.

Alternatively, only one fixing block 8 may be provided, and the fixing block is a non-conductive fixing block, and both the pins 6 of the thermistor 4 extend out of the fixing block 8 (not shown).

The core assembly 2 may include a metal spring 10, an inner bracket 11, positive and negative power plates 12, a key 13, a liquid crystal screen 14, a conductive adhesive tape 15, a PCB 5, and a buzzer conductor 16, but the core assembly is not limited to the above structure, and the specific structure of the core assembly 2 may be the prior art.

One end of the metal elastic sheet 10 is electrically connected with the pin 6 of the thermistor 4, and the other end of the metal elastic sheet is connected with a circuit on the PCB 5.

Preferably, an installation limiting part 17 is further arranged in the housing component 3, and the movement component 2 is detachably assembled at the installation limiting part 17 of the housing component 3.

In the installation process, all parts of the movement assembly 2 are only required to be installed on the inner bracket 11, then the inner bracket 11 is installed at the fixed position of the integrated component formed by the sensor assembly 1 and the shell assembly 3, the metal elastic sheet 10 on the movement assembly 2 can be contacted with the conducting strip 7 on the sensor assembly 1, the assembly process can be completed by completing necessary assemblies such as the residual shell, the battery and the like, and the electrifying detection is carried out. Compared with the existing electronic thermometer, the electronic thermometer is only required to be assembled, the glue fixing and other processing procedures cannot be used, and the processing efficiency is greatly improved.

Preferably, the head of the housing assembly 3 is sleeved with a detachable disposable protective film 18, and the disposable protective film 18 covers the thermistor 4. The probe (thermistor 4) of the sensor assembly 1 can be prevented from being contaminated in the measurement process, and meanwhile, different testees cannot repeatedly contact the same surface, so that cross infection is avoided.

When the temperature measuring device is used, the temperature of a human body in a household or hospital environment is generally measured, the armpit temperature is taken as an example, the thermistor 4 can be ensured to be in direct contact with the skin surface of the human body only by clamping the head of the electronic thermometer under the armpit, the measured temperature can be ensured to be completely consistent with the actual temperature, and the temperature measuring speed is extremely high because other media are not passed through in the heat conduction process.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A rapid temperature measurement electronic thermometer is characterized in that:

the sensor comprises a sensor assembly, a movement assembly and a shell assembly;

2. The rapid temperature measurement electronic thermometer according to claim 1, characterized in that: and two pins of the thermistor are electrically connected with the PCB of the movement assembly through conducting strips or conducting wires respectively.

3. The rapid temperature measurement electronic thermometer according to claim 1, characterized in that: the sensor assembly further comprises a fixing block, and the thermistor is fixedly assembled with the fixing block.

4. The rapid temperature measurement electronic thermometer according to claim 3, characterized in that: the two fixing blocks are both conductive fixing blocks, and the two fixing blocks are assembled with the two pins of the thermistor in a one-to-one correspondence mode.

5. The rapid temperature measurement electronic thermometer according to claim 3, characterized in that: the fixing block is a non-conductive fixing block, and two pins of the thermistor extend out of the fixing block.

6. The rapid temperature measurement electronic thermometer according to claim 1, characterized in that: the movement assembly comprises a metal elastic sheet, an inner bracket, positive and negative pole pieces of a power supply, a key, a liquid crystal screen, a conductive adhesive tape, a PCB and a buzzer conductor;

7. The rapid temperature measurement electronic thermometer according to claim 1, characterized in that: the shell assembly is also internally provided with an installation limiting part, and the movement assembly is detachably assembled at the installation limiting part of the shell assembly.

8. The rapid temperature measurement electronic thermometer according to claim 1, characterized in that: the head cover of casing subassembly is equipped with the disposable protective film of detachable, and this disposable protective film covers thermistor.