CN219624928U

CN219624928U - Thermistor structure sensor

Info

Publication number: CN219624928U
Application number: CN202320518463.1U
Authority: CN
Inventors: 雷克和; 颜天宝
Original assignee: Chuandong Magnetic Electronic Co Ltd
Current assignee: Chuandong Magnetic Electronic Co Ltd
Priority date: 2023-03-17
Filing date: 2023-03-17
Publication date: 2023-09-01
Anticipated expiration: 2033-03-17

Abstract

The utility model discloses a thermistor structure sensor, which comprises a heat conduction cover, wherein a detection mechanism is fixedly arranged at the bottom of the inner side of the heat conduction cover, a pipe body is fixedly arranged at the top of the detection mechanism, a wire harness is inserted into the inner side of the pipe body, an outer collecting clamp is arranged at the outer end of the wire harness, and a spring is arranged at the top of the outer collecting clamp; the detection mechanism comprises an insulation small gasket, the insulation small gasket is arranged at the inner bottom of the heat conduction cover, a patch thermistor is fixedly arranged at the top of the insulation small gasket, and electrode plates are arranged at two sides of the top of the patch thermistor; therefore, the technical scheme adopts the patch type thermistor to replace the diode-shaped thermistor, and is used as a sensor of the bottom of the electric cooker of the household appliance for temperature control. Wherein, cancelled internally mounted thermistor's fixed hardware and inside insulating tube, cancelled the installation base, the cost is reduced, and production is more convenient, stable performance.

Description

Thermistor structure sensor

Technical Field

The utility model relates to the technical field of thermosensitive sensors, in particular to a thermosensitive resistor structure sensor.

Background

The electric cooker is a modern cooker capable of performing various processing such as steaming, boiling, stewing and stewing. The temperature-keeping device not only can cook food, but also can keep the temperature, is clean and sanitary to use, has no pollution, saves time and labor, is one of the tools necessary for modernization of household labor, and the temperature-sensitive resistor is one type of sensitive element and is divided into a Positive Temperature Coefficient (PTC) and a Negative Temperature Coefficient (NTC) according to different temperature coefficients. A typical characteristic of a thermistor is that it is temperature sensitive, exhibiting different resistance values at different temperatures;

the thermistor structure of the existing electric cooker bottom sensor is a diode-shaped structure, an insulating sleeve sleeved on the thermistor needs to be added by adopting the structure, and the hardware for fixing the thermistor is complex in design and has no cost advantage in market competition.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems existing in the prior art, the utility model aims to provide a thermistor structure sensor, which eliminates fixed hardware and an internal insulating sleeve of an internally mounted thermistor, eliminates an installation base, reduces cost and is more convenient to produce. Wherein key element paster type thermistor installs inside the heat conduction lid, the heat conduction lid places the thermistor position and puts an insulating gasket, during the assembly, the pencil welding is fixed on the welding electrode of paster type thermistor, the outer card of collection design has the jack catch, the jack catch blocks the sleeve pipe of pencil and fixes, the outer card of collection is cold riveting fixed with the heat conduction lid, the spring is placed on the outer card of collection, during the complete machine installation, the outer card of collection design has the fixing clip post, compress the spring and block and fix with the stationary blade of machine, its principle: the resistance value is rapidly reduced with the temperature rise under a certain measurement power by using the patch type thermistor. By utilizing the characteristic, the chip thermistor can determine the corresponding temperature by measuring the resistance value, thereby achieving the purpose of detecting and controlling the temperature.

2. Technical proposal

In order to solve the problems, the utility model adopts the following technical scheme.

The thermistor structure sensor comprises a heat conduction cover, wherein a detection mechanism is fixedly arranged at the bottom of the inner side of the heat conduction cover, a pipe body is fixedly arranged at the top of the detection mechanism, a wire harness is inserted into the inner side of the pipe body, an outer collecting clamp is arranged at the outer end of the wire harness, and a spring is arranged at the top of the outer collecting clamp;

the detection mechanism comprises an insulation small gasket, the insulation small gasket is arranged at the inner bottom of the heat conduction cover, a patch thermistor is fixedly arranged at the top of the insulation small gasket, electrode plates are arranged on two sides of the top of the patch thermistor, and the top of the electrode plates is fixedly connected with the bottom of the wire harness.

Further, the insulating small gasket is arranged as a heat-resistant gasket, and the insulating small gasket is composed of an aluminum nitride ceramic substrate.

Further, the cross section shape of the heat conduction cover is in a step shape, and the side surface shape of the heat conduction cover is in a convex shape.

Further, the outer assembly card comprises a substrate, the right side of the substrate is provided with a claw, the left side of the substrate is provided with a fixed card column, the substrate is connected with the pipe body through the claw, and the bottom of the spring is fixedly connected with the top of the substrate.

Further, the base plate is composed of a heat-resistant mica plate, and the bottom of the fixing clip column is provided with a convex groove.

Furthermore, the pipe body is formed by a fluoroplastic pipe sleeve, and a plug is fixedly arranged at the top of the wire harness.

Further, the left side of the top of the plug is provided with an elastic clamping plate, the right side of the top of the plug is provided with two groups of electric connecting slots, and copper guide sheets are arranged in the electric connecting slots.

Furthermore, the top view shape of the clamping jaw is concave, the clamping jaw and the fixing clamping column are both composed of manganese silicon heat-resistant spring steel, and the inner sides of the fixing clamping columns on the inner sides of the clamping jaw are connected with each other.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages that:

(1) The fixed hardware and the internal insulating sleeve of the internal installation thermistor are canceled, the installation base is canceled, the cost is reduced, the production is more convenient, and the technical structure scheme consists of a heat conduction cover, a patch type thermistor, an insulating small gasket, an assembly outer clamp, a spring, a wire harness, a connector and the like. Wherein key element paster type thermistor installs inside the heat conduction lid, the heat conduction lid places the thermistor position and puts an insulating gasket, during the assembly, the pencil welding is fixed on the welding electrode of paster type thermistor, the outer card of collection design has the jack catch, the jack catch blocks the sleeve pipe of pencil and fixes, the outer card of collection is cold riveting fixed with the heat conduction lid, the spring is placed on the outer card of collection, during the complete machine installation, the outer card of collection design has the fixing clip post, compress the spring and block and fix with the stationary blade of machine, its principle: the resistance value is rapidly reduced with the temperature rise under a certain measurement power by using the patch type thermistor. By utilizing the characteristic, the chip thermistor can determine the corresponding temperature by measuring the resistance value, thereby achieving the purpose of detecting and controlling the temperature.

(2) During the use, place insulating little gasket with the inside of heat conduction lid, then adopt claw and the fixed card post on the base plate to cooperate, the pencil welding is fixed on paster type thermistor both ends electrode this moment, the sleeve pipe of pencil is fixed to the claw blocking, fixed card post mainly is fixed use when assembling with electric rice cooker bottom, after whole installation, through with the collection outside card with heat conduction lid cold riveting fixed can, from this, this technical scheme adopts paster type thermistor, replace diode shape's thermistor, as the sensor at the bottom of the household electrical apparatus electric rice cooker, for temperature control. Wherein, cancelled internally mounted thermistor's fixed hardware and inside insulating tube, cancelled the installation base, the cost is reduced, and production is more convenient, stable performance.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an exploded view of the present utility model;

FIG. 3 is a cross-sectional view of the present utility model;

FIG. 4 is a top view of the present utility model;

FIG. 5 is a block diagram of an aggregate outer card of the present utility model;

fig. 6 is a right-side view of the assembled outer card of the utility model.

The reference numerals in the figures illustrate:

1. a heat conductive cover; 2. the device comprises a detection mechanism 21, an insulating small gasket 22, a patch thermistor 23 and an electrode plate; 3. a tube body; 4. a wire harness; 5. the outer clamp, 51, the base plate, 52, the clamping jaw, 53, the fixed clamp column, 54 and the convex groove are assembled; 6. a spring; 7. a plug; 8. an elastic clamping plate; 9. a slot; 10. copper guide.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Examples:

referring to fig. 1-6, a thermistor structure sensor comprises a heat conducting cover 1, wherein a detection mechanism 2 is fixedly arranged at the bottom of the inner side of the heat conducting cover 1, a pipe body 3 is fixedly arranged at the top of the detection mechanism 2, a wire harness 4 is inserted into the inner side of the pipe body 3, an outer collecting card 5 is arranged at the outer end of the wire harness 4, and a spring 6 is arranged at the top of the outer collecting card 5;

the detection mechanism 2 comprises an insulation small gasket 21, the insulation small gasket 21 is arranged at the inner bottom of the heat conduction cover 1, a patch thermistor 22 is fixedly arranged at the top of the insulation small gasket 21, electrode plates 23 are arranged on two sides of the top of the patch thermistor 22, and the top of the electrode plates 23 is fixedly connected with the bottom of the wire harness 4.

Referring to fig. 1 to 6, the insulating small gasket 21 is a heat-resistant gasket, the insulating small gasket 21 is composed of an aluminum nitride ceramic substrate, the cross section of the heat conduction cover 1 is in a step shape, and the side surface of the heat conduction cover 1 is in a convex shape; the sensor can be conveniently installed and used by arranging the cross section shape of the stepped heat conduction cover 1, and the insulating small gasket 21 formed by the aluminum nitride ceramic substrate can play a good heat conduction and insulation role.

Referring to fig. 1-6, the outer assembly card 5 comprises a base plate 51, a claw 52 is arranged on the right side of the base plate 51, a fixing card column 53 is arranged on the left side of the base plate 51, the base plate 51 is connected with the pipe body 3 through the claw 52, the bottom of the spring 6 is fixedly connected with the top of the base plate 51, the base plate 51 is composed of a heat-resistant mica plate, and a convex groove 54 is formed at the bottom of the fixing card column 53; through setting up the card and the cooperation of fixed card post 53, can be convenient for connect the body 3 of pencil 4 surface and supplementary this sensor of installation, improved the practicality of this sensor, set up the base plate 51 that comprises heat-resisting mica board, can improve the holistic stability in use of this thermistor, set up protruding groove 54, can be used to supplementary fixed card post 53 and install.

Referring to fig. 1-6, the tube body 3 is composed of a fluoroplastic pipe sleeve, a plug 7 is fixedly installed at the top of the wire harness 4, an elastic clamping plate 8 is arranged at the left side of the top of the plug 7, two groups of electric connection slots 9 are arranged at the right side of the top of the plug 7, copper guide sheets 10 are arranged in the electric connection slots 9, the top view shape of a claw 52 is concave, the claw 52 and a fixing clamp column 53 are composed of manganese silicon heat-resistant spring 6 steel, and the inner sides of the fixing clamp columns 53 at the inner sides of the claw 52 are connected with each other; through setting up elastic clamping plate 8 and electric connection slot 9, can assist the installation this sensor, through copper guide piece 10 auxiliary connection power in the use, make things convenient for this sensor to use to have claw 52 and the fixed card post 53 that manganese silicon heat-resisting spring 6 steel constitutes, can improve the elasticity of claw 52 and fixed card post 53, conveniently install

The use principle and the advantages of the utility model are that; the utility model eliminates the fixed hardware and the internal insulating sleeve of the internal installation thermistor, eliminates the installation base, reduces the cost and is more convenient to produce, and the technical structure scheme comprises a heat conduction cover 1, a patch type thermistor, an insulating small gasket 21, an external collecting card 5, a spring 6, a wire harness 4, a connector and the like. Wherein key element paster type thermistor installs inside heat conduction lid 1, heat conduction lid 1 places the thermistor position and puts an insulating gasket 21, during the assembly, pencil 4 welding is fixed on paster type thermistor's welding electrode, outer card of collection 5 designs has jack catch 52, jack catch 52 blocks the sleeve pipe of pencil 4 and fixes, outer card of collection 5 is fixed with heat conduction lid 1 cold riveting, spring 6 places on outer card of collection 5, during the complete machine installation, outer card of collection 5 designs has fixing clip post 53, compress spring 6 and block and fix with the stationary blade of machine, its principle: the resistance value is rapidly reduced with the temperature rise under a certain measurement power by using the patch type thermistor. By utilizing the characteristic, the chip thermistor can determine the corresponding temperature by measuring the resistance value, thereby achieving the purpose of detecting and controlling the temperature.

The above description is only of the preferred embodiments of the present utility model; the scope of the utility model is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.

Claims

1. A thermistor structure sensor, includes heat conduction lid, its characterized in that: the detection mechanism is fixedly arranged at the bottom of the inner side of the heat conduction cover, the pipe body is fixedly arranged at the top of the detection mechanism, a wire harness is inserted into the inner side of the pipe body, the outer end of the wire harness is provided with an outer collecting clamp, and a spring is arranged at the top of the outer collecting clamp;

2. The thermistor structure sensor according to claim 1, characterized in that: the insulating small gasket is arranged to be a heat-resistant gasket, and is composed of an aluminum nitride ceramic substrate.

3. The thermistor structure sensor according to claim 2, characterized in that: the cross section shape of the heat conduction cover is in a step shape, and the side surface shape of the heat conduction cover is in a convex shape.

4. A thermistor structure sensor according to claim 3, characterized in that: the outer assembly clamp comprises a substrate, wherein a clamping jaw is arranged on the right side of the substrate, a fixed clamping column is arranged on the left side of the substrate, the substrate is connected with a pipe body through the clamping jaw, and the bottom of the spring is fixedly connected with the top of the substrate.

5. The thermistor structure sensor according to claim 4, characterized in that: the base plate is composed of a heat-resistant mica plate, and a convex groove is formed at the bottom of the fixing clamp column.

6. The thermistor structure sensor according to claim 5, characterized in that: the pipe body comprises fluoroplastic pipe sleeve, the top fixed mounting of pencil has the plug.

7. The thermistor structure sensor according to claim 6, characterized in that: the left side of the top of the plug is provided with an elastic clamping plate, the right side of the top of the plug is provided with two groups of electric connecting slots, and copper guide sheets are arranged in the electric connecting slots.

8. The thermistor structure sensor of claim 7, wherein: the overlook shape of jack catch is the concave shape, jack catch and fixed card post are by manganese silicon heat-resisting spring steel constitution, the inboard interconnect of the inboard fixed card post of jack catch.