阅读说明：本技术 一种具有防水功能的温度传感器 (Temperature sensor with waterproof function ) 是由 夏贤冲 颜天宝 于 2021-01-18 设计创作，主要内容包括：本发明提供了一种具有防水功能的温度传感器,包括中心处理部、感应部、连接杆、伸缩模块和防水模块,所述防水模块包括防水外壳、避震单元和散热单元,所述防水外壳套接于所述温度传感器外侧,所述防水外壳内部通过隔板分隔为第一腔体和第二腔体,所述中心处理部和伸缩模块位于所述第一腔体,所述感应部设置于第二腔体,所述感应部可伸出至所述第二腔体外,所述第二腔体上设有用于所述感应部伸出的通孔,所述第二腔体设有防水组件,所述中心处理部通过所述连接杆与所述伸缩模块的一端连接,所述伸缩模块的另一端与所述感应部连接,所述中心处理部与所述感应部信号连接,所述避震单元设置于所述防水外壳内,所述散热模块设置于所述防水外壳外壁。(The invention provides a temperature sensor with a waterproof function, which comprises a central processing part, an induction part, a connecting rod, a telescopic module and a waterproof module, wherein the waterproof module comprises a waterproof shell, a shock absorption unit and a heat dissipation unit, the waterproof shell is sleeved outside the temperature sensor, the interior of the waterproof shell is divided into a first cavity and a second cavity by a partition plate, the central processing part and the telescopic module are positioned in the first cavity, the induction part is arranged in the second cavity, the induction part can extend out of the second cavity, a through hole for extending the induction part is arranged on the second cavity, the second cavity is provided with a waterproof assembly, the central processing part is connected with one end of the telescopic module through the connecting rod, the other end of the telescopic module is connected with the induction part, and the central processing part is in signal connection with the induction part, the shock absorption unit is arranged in the waterproof shell, and the heat dissipation module is arranged on the outer wall of the waterproof shell.)

1. A temperature sensor with a waterproof function is characterized by comprising a central processing part, a sensing part, a connecting rod, a telescopic module and a waterproof module, wherein the waterproof module comprises a waterproof shell, a shock absorption unit and a heat dissipation unit, the waterproof shell is sleeved outside the temperature sensor, the interior of the waterproof shell is divided into a first cavity and a second cavity through a partition plate, the central processing part and the telescopic module are positioned in the first cavity, the sensing part is arranged in the second cavity, the sensing part can extend out of the second cavity, a through hole for extending the sensing part is formed in the second cavity, the second cavity is provided with a waterproof assembly, the central processing part is connected with one end of the telescopic module through the connecting rod, the other end of the telescopic module is connected with the sensing part, and the central processing part is in signal connection with the sensing part, the shock absorption unit is arranged in the waterproof shell, and the heat dissipation module is arranged on the outer wall of the waterproof shell.

2. The temperature sensor with waterproof function according to claim 1, wherein the waterproof component comprises a water-absorbing sponge, and the water-absorbing sponge is disposed in the second cavity.

3. The temperature sensor of claim 1, wherein the heat dissipation module comprises a plurality of heat dissipation holes, the heat dissipation holes are disposed in the housing of the first cavity, and inner holes of the heat dissipation holes are provided with waterproof air-permeable films.

4. The temperature sensor of claim 3, wherein the waterproof breathable film comprises a PP spunbonded nonwoven fabric and a PE polymer breathable film, and the PP spunbonded nonwoven fabric is arranged on both the front and rear end faces of the PE polymer breathable film.

5. The temperature sensor with waterproof function of claim 1, wherein the shock absorption unit comprises a shock absorption spring, the shock absorption spring is arranged in the first cavity, one end of the shock absorption spring is connected with the inner wall of the first cavity, and the other end of the shock absorption spring is connected with the central processing part.

6. The temperature sensor with the waterproof function according to claim 1, wherein the telescopic module comprises a fixed seat and a driving cylinder, the fixed seat is fixedly connected with the connecting rod, the driving cylinder is fixed on the fixed seat, and a power output shaft of the driving cylinder is connected with the sensing part.

7. The temperature sensor with waterproof function according to claim 1, wherein a waterproof gasket is provided at a joint of the partition plate and the sensing portion.

8. The temperature sensor with waterproof function according to claim 2, wherein the second chamber is provided with a side door.

9. The temperature sensor with waterproof function of claim 1, wherein the waterproof component comprises a latex sleeve disposed in the through hole.

10. The temperature sensor with waterproof function of claim 9, wherein the thickness of the latex sleeve is 0.05-0.09 mm.

Technical Field

The invention relates to the technical field of electric cooker sensors, in particular to a temperature sensor with a waterproof function.

Background

A temperature sensor (temperature transducer) refers to a sensor that senses temperature and converts it into a usable output signal. The temperature sensor is the core part of a temperature measuring instrument, has various varieties and can be divided into two types of contact type and non-contact type according to the measuring mode;

the sensor of the electric cooker mostly adopts a contact temperature sensor which reaches heat balance through conduction or convection, so that the indication value of the thermometer can directly represent the temperature of the measured object. Generally, the measurement precision is higher. The thermometer can also measure the temperature distribution inside the object within a certain temperature measuring range. However, a large measurement error occurs in a moving body, a small target, or an object having a small heat capacity, and commonly used thermometers include a bimetal thermometer, a glass liquid thermometer, a pressure type thermometer, a resistance thermometer, a thermistor, a thermocouple, and the like. They are widely used in industrial, agricultural, commercial, etc. sectors. These thermometers are also commonly used by people in everyday life. With the widespread application of cryogenic technology in the departments of national defense engineering, space technology, metallurgy, electronics, food, medicine, petrochemical industry and the like and the research of superconducting technology, cryothermometers for measuring temperatures below 120K, such as low-temperature gas thermometers, vapor pressure thermometers, acoustic thermometers, paramagnetic salt thermometers, quantum thermometers, low-temperature thermal resistors, low-temperature thermocouples and the like, have been developed. The low temperature thermometer requires the temperature sensing element to be small in size, high in accuracy, good in reproducibility and stability. A carburized glass thermal resistor formed by carburizing and sintering porous high silica glass is a temperature sensing element of a low-temperature thermometer and can be used for measuring the temperature within the range of 1.6-300K.

Contact temperature sensor can often receive the influence of the water smoke in the electric rice cooker when the external use in the in-service use, forms the damage to temperature sensor's inside components and parts, and life is short, and water-proof effects is poor, still can lead to taking place temperature sensor damage or detect the precision and descend scheduling problem simultaneously.

Disclosure of Invention

Based on the technical scheme, the invention provides a temperature sensor with a waterproof function in order to solve the problem of water resistance of the temperature sensor in an electric cooker, and the specific technical scheme is as follows:

a temperature sensor with a waterproof function comprises a central processing part, a sensing part, a connecting rod, a telescopic module and a waterproof module, wherein the waterproof module comprises a waterproof shell, a shock absorption unit and a heat dissipation unit, the waterproof shell is sleeved outside the temperature sensor, the interior of the waterproof shell is divided into a first cavity and a second cavity through a partition plate, the central processing part and the telescopic module are positioned in the first cavity, the sensing part is arranged in the second cavity, the sensing part can extend out of the second cavity, a through hole for extending out of the sensing part is arranged on the second cavity, the second cavity is provided with a waterproof assembly, the central processing part is connected with one end of the telescopic module through the connecting rod, the other end of the telescopic module is connected with the sensing part, and the central processing part is in signal connection with the sensing part, the shock absorption unit is arranged in the waterproof shell, and the heat dissipation module is arranged on the outer wall of the waterproof shell.

In the above scheme, the central processing part is arranged in the first cavity of the waterproof shell to be sealed and waterproof, so that components and the telescopic module in the central processing part can be effectively protected, the sensing part is arranged in the second cavity of the waterproof shell, and after the sensing part extends out of the second cavity for temperature measurement, the water contacted on the sensing part is absorbed in time through the waterproof component, so that the sensing part is effectively prevented from being corroded by water; the shock absorption unit is used for improving the stability of the sensor and preventing the temperature sensor from colliding with the waterproof shell; the heat dissipation module is used for reducing the temperature in the waterproof shell; the product has simple structure and convenient and fast use.

Further, waterproof component includes the sponge that absorbs water, the sponge that absorbs water set up in the second cavity.

Further, the heat dissipation module comprises a plurality of heat dissipation holes, the heat dissipation holes are formed in the shell of the first cavity, and waterproof breathable films are arranged in inner holes of the heat dissipation holes.

Further, waterproof ventilated membrane includes that PP glues non-woven fabrics and PE polymer ventilated membrane, two terminal surfaces all are equipped with around the PE polymer ventilated membrane PP glues the non-woven fabrics.

Furthermore, the shock absorption unit comprises a shock absorption spring, the shock absorption spring is arranged in the first cavity, one end of the shock absorption spring is connected with the inner wall of the first cavity, and the other end of the shock absorption spring is connected with the central processing part.

Further, the telescopic module comprises a fixed seat and a driving cylinder, the fixed seat is fixedly connected with the connecting rod, the driving cylinder is fixed on the fixed seat, and a power output shaft of the driving cylinder is connected with the induction part.

Furthermore, a waterproof gasket is arranged at the joint of the partition board and the induction part.

Further, the second cavity is provided with a side door.

Further, the waterproof assembly comprises a latex sleeve arranged in the through hole.

Further, the thickness of the latex sleeve is 0.05-0.09 mm.

Drawings

The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate corresponding parts throughout the different views.

Fig. 1 is a schematic structural diagram of a temperature sensor with waterproof function according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a waterproof and breathable film of a temperature sensor with waterproof function according to an embodiment of the present invention;

FIG. 3 is a partial schematic view of a temperature sensor with water-resistant features in accordance with an embodiment of the present invention;

FIG. 4 is a second partial schematic view of a temperature sensor with waterproof function according to an embodiment of the present invention;

fig. 5 is a second schematic structural diagram of a temperature sensor with waterproof function according to an embodiment of the present invention;

description of reference numerals: 1. a central processing unit; 2. a sensing part; 3. a connecting rod; 4. a waterproof housing; 5. a water-absorbing sponge; 6. heat dissipation holes; 7. a waterproof breathable film; 8. PP spun-bonded non-woven fabric; 9. a PE high-molecular breathable film; 10. a cushioning spring; 11. a fixed seat; 12. a driving cylinder; 13. a waterproof gasket; 14. a partition plate; 15. a first cavity; 16. a second cavity; 17. heat preservation cotton; 18. a latex sleeve.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to embodiments thereof. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The terms "first" and "second" used herein do not denote any particular order or quantity, but rather are used to distinguish one element from another.

As shown in fig. 1, a temperature sensor with waterproof function in an embodiment of the present invention includes a central processing portion 1, a sensing portion 2, a connecting rod 3, a telescopic module and a waterproof module, where the waterproof module includes a waterproof housing 4, a shock absorbing unit and a heat dissipating unit, the waterproof housing 4 is sleeved outside the temperature sensor, the interior of the waterproof housing 4 is divided into a first cavity 15 and a second cavity 16 by a partition 14, the central processing portion 1 and the telescopic module are located in the first cavity 15, the sensing portion 2 is disposed in the second cavity 16, the sensing portion 2 can extend out of the second cavity 16, the second cavity 16 is provided with a through hole for the sensing portion 2 to extend out of the waterproof housing 4, the second cavity 16 is provided with a waterproof component, the central processing portion 1 is connected with one end of the telescopic module through the connecting rod 3, the other end of the telescopic module is connected with the induction part 2, the central processing part 1 is in signal connection with the induction part 2, the shock absorption unit is arranged in the waterproof shell 4, and the heat dissipation module is arranged on the outer wall of the waterproof shell 4.

In the above scheme, the central processing part 1 is arranged in the first cavity 15 of the waterproof housing 4 for sealing and waterproofing, so that components and the telescopic module in the central processing part 1 can be effectively protected, the sensing part 2 is arranged in the second cavity 16 of the waterproof housing 4, and after the sensing part 2 extends out of the second cavity 16 for temperature measurement, moisture contacting the sensing part 2 is absorbed in time through the waterproof assembly, so that the sensing part 2 is effectively prevented from being corroded by the moisture; the shock absorption unit is used for improving the stability of the sensor and preventing the temperature sensor from colliding with the waterproof shell 4; the heat dissipation module is used for reducing the temperature in the waterproof shell 4; the product has simple structure and convenient and fast use.

In one of them thing example, waterproof component includes the sponge 5 that absorbs water, the sponge 5 that absorbs water set up in the second cavity 16, response portion 2 is in stretch out the second cavity 16 under the drive of flexible module, responds to the environment that needs the temperature measurement, after the response finishes, in the drive of flexible module is withdrawn down, the sponge 5 that absorbs water at this moment in time with moisture absorption on the response portion 2 prevents that moisture from corroding response portion 2.

In one embodiment, the heat dissipation module includes a plurality of heat dissipation holes 6, the heat dissipation holes 6 are disposed on the outer shell of the first cavity 15, and inner holes of the heat dissipation holes 6 are provided with waterproof breathable films 7. The heat generated in the waterproof shell 4 can be dissipated through the heat dissipation holes 6, and meanwhile, external moisture cannot enter the waterproof shell 4 through the waterproof breathable film 7.

The working principle of the waterproof breathable film 7 is as follows: the gas particles are very fine, and can smoothly permeate into the waterproof breathable film to the other side according to the principle of capillary motion, so that the vapor permeation phenomenon is generated. When the gas is condensed into water drops, the particles become bigger, and due to the action of the surface tension of the water drops (mutual 'pull-up and counter-balance' among water molecules), the water molecules can not smoothly separate from the water drops and permeate to the other side, namely, the water permeation is prevented, so that the waterproof and breathable film 7 has a waterproof function.

As shown in fig. 2, in one embodiment, the waterproof breathable film 7 includes a PP spunbonded nonwoven fabric 8 and a PE polymeric breathable film 9, and the PP spunbonded nonwoven fabric 8 is disposed on both front and rear end faces of the PE polymeric breathable film 9. The PP spunbonded nonwoven fabric 8 mainly has the effects of enhancing the tensile force and the hydrostatic pressure and protecting the PE high-molecular breathable film 9 in the middle layer, and the PE high-molecular breathable film 9 is used for ventilation.

In one embodiment, the PE polymer breathable film 9 is made of polytetrafluoroethylene, and the material has the characteristics of acid resistance, alkali resistance and various organic solvents resistance and is almost insoluble in all solvents; meanwhile, the waterproof breathable film has the characteristic of high temperature resistance.

In one embodiment, the shock absorbing unit includes a shock absorbing spring 10, the shock absorbing spring 10 is disposed in the first cavity 15, one end of the shock absorbing spring 10 is connected to the inner wall of the first cavity 15, and the other end of the shock absorbing spring 10 is connected to the central processing portion 1. The cushioning spring 10 is used to improve the stability of the sensor and prevent the temperature sensor from colliding with the waterproof case 4.

In one embodiment, the telescopic module comprises a fixed seat 11 and a driving cylinder 12, the fixed seat 11 is fixedly connected with the connecting rod 3, the driving cylinder 12 is fixed on the fixed seat 11, and a power output shaft of the driving cylinder 12 is connected with the sensing part 2. The driving cylinder 12 drives the sensing part 2 to extend or retract.

In one embodiment, a waterproof gasket 13 is arranged at the joint of the partition 14 and the sensing part 2. The air tightness in the first cavity 15 is improved; moisture in the water absorption sponge 5 in the second cavity 16 is prevented from entering the first cavity 15.

In one embodiment, the second cavity 16 is provided with a side door. The water absorption foam is convenient to take out for replacement.

As shown in FIG. 3, in one embodiment, the waterproof assembly includes a latex sleeve 18 disposed within the through-hole; in this embodiment, it need not set up the sponge 5 that absorbs water in the second cavity 16, when drive actuating cylinder 12 and drive sensing portion 2 stretches out, emulsion cover 18 cup joints in the 2 outsides of sensing portion, sensing portion 2 need not be with the object direct contact of temperature measurement, emulsion cover 18 adopts ultra-thin design, can not produce great influence to measuring result, ensures sensing portion 2 simultaneously and keeps dry.

In one embodiment, the latex sleeve 18 has a thickness of 0.05 mm to 0.09 mm.

As shown in fig. 4, in one embodiment, the waterproof component includes a water-absorbing sponge 5 and a latex sleeve 18 disposed in the through hole, the water-absorbing sponge 5 is disposed in the second cavity 16, and in a normal case, when the driving cylinder 12 drives the sensing portion 2 to extend out, the latex sleeve 18 is sleeved outside the sensing portion 2, the sensing portion 2 does not need to directly contact with an object for measuring temperature, since the latex sleeve 18 is thin and easy to break, when the latex sleeve 18 breaks, and the sensing portion 2 contacts moisture, the sensing portion 2 retracts, and moisture on the sensing portion 2 is absorbed by the water-absorbing sponge 5.

As shown in fig. 5, in one embodiment, the waterproof housing 4 further comprises a heating assembly, and the heating assembly comprises heat insulation cotton 17 arranged in the first cavity 15 and a heating unit arranged outside the waterproof housing 4.

When the temperature is required to be measured in an extremely low environment, the central processing part 1 may not work when the temperature is too low, at the moment, the heat dissipation module is cancelled, the heating assembly is added, the heat preservation cotton 17 is filled in the first cavity 15 to prevent freezing, and meanwhile, the heating unit is arranged at one end, far away from the induction part 2, of the shell of the first cavity 15, so that the central processing part can keep the temperature to normally run.

In one embodiment, the heating unit includes a power supply 19 and a heating resistor 20, the power supply 19 is disposed on the waterproof housing 4, and the heating resistor 20 is disposed on an end of the waterproof housing 4 away from the sensing portion 2.

In one embodiment, the thermal insulation cotton 17 comprises high-purity clay clinker, alumina powder, silica powder and chrome sand, and the thermal insulation cotton 17 is formed into a fluid by high-temperature melting of the high-purity clay clinker, alumina powder, silica powder and chrome sand in an industrial electric furnace. Then, compressed air is adopted for blowing or a throwing machine is used for throwing the silk into a fibrous shape, and the cotton is collected by a cotton collector to form the heat preservation cotton 17.

In one embodiment, the waterproof housing 4 is made of a transparent polycarbonate plate, and the transparent polycarbonate plate belongs to an ultra-high molecular amorphous polymer material, has the advantages of high strength, high toughness, explosion resistance, smashing resistance, high temperature and high pressure resistance and V0-grade monomer flame retardance, and can effectively protect an internal temperature sensor.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.