Thermistor

Abstract

The utility model discloses a thermistor, which relates to the field of thermistors and comprises a resistor body, radiating plates are fixedly mounted on two sides of the resistor body, a plate-shaped pin is fixedly mounted at one end of the resistor body, bumps are arranged on two sides of the plate-shaped pin, and the plate-shaped pin is mounted at the top of a delay power-off module. The time-delay power-off module and the resistor main body are connected on one side through the plate-shaped pins, so that multiple functions such as a time-delay power-off function and a circuit element protection function can be realized. The problem that an existing thermistor is poor in using effect is solved, the plate-shaped pins with the rectangular cross sections are arranged on the two sides of the resistor body, and when the resistor body is fixedly installed on the common connecting end, the negative electrode connecting end and the NC connecting end on one side of the time-delay power-off module through the plate-shaped pins, the resistor body can be connected with the resistor body through the plate-shaped pins. The contact area between the plate-shaped pin and the common connecting end, the negative electrode connecting end and the NC connecting end is large.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of thermistor, concretely is a kind of thermistor. BACKGROUND

[0002] Thermistor (Thermistor) is a resistance value to temperature extremely sensitive resistor, also called semiconductor thermistor, it can be made of single crystal, polycrystalline and glass, plastic and other semiconductor materials, this resistor has a series of special electrical properties, the most basic characteristic is that its resistance changes significantly with temperature, and volt-ampere curve is nonlinear, his working principle is based on the temperature sensitivity of thermosensitive material, when temperature changes, the semiconductor material inside thermistor will produce electron migration and thermal noise, thereby causing resistance change, simply speaking, when temperature rises, the free electron in semiconductor material increases, and resistance will drop;Resistance will rise when temperature drops, this special resistance element is often used in measuring, controlling and regulating temperature equipment, thermistor is usually connected in series with time delay power-off module during use, thereby playing a protective role when circuit overload, however, with the long-term use of thermistor and time delay power-off module, problems often occur in the stability of installation, which needs to be solved by people.

[0003] The existing thermistor is usually fixed with two groups of pins at both ends of the thermistor, the pins are bent and fixed on one side of the time delay power-off module by welding, so as to play a protective role when the circuit is overloaded.

[0004] However, for the existing thermistor, the pins arranged at both ends of the thermistor are usually cylindrical, when the thermistor is welded to the time delay power-off module through the cylindrical pins, the contact area of the cylindrical pins with the time delay power-off module is small, so the stability of welding is poor, when the device shakes, the thermistor is easy to fall off from the time delay power-off module, thereby affecting the normal use of the device, and the mutual contact of the cylindrical pins on both sides when other elements are connected with the thermistor also greatly reduces the fixing effect between the elements and the thermistor, which is not conducive to the popularization and application of the device. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model aims at providing a kind of thermistor to solve the technical problem of the poor use effect of the existing thermistor.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of thermistor, including resistance main body, the both sides of the resistance main body are fixedly installed with heat sink, one end of the resistance main body is fixedly installed with plate-like pin, the both sides of the plate-like pin are provided with lug, the plate-like pin is installed at the top of time delay power-off module.

[0007] By adopting the technical scheme, the problem of poor use effect of the existing thermistor is solved, the plate-shaped pin with a rectangular cross section is arranged on both sides of the resistance main body, when the resistance main body is fixed and installed on the public connection end, the negative connection end and the NC connection end on one side of the time delay power-off module through the plate-shaped pin, the resistance main body can be more stably installed on one side of the time delay power-off module due to the large contact area of the plate-shaped pin with the public connection end, the negative connection end and the NC connection end after welding, the resistance main body is prevented from falling off due to unstable pin welding when the device shakes, the pin is arranged in a plate shape, the pin heat dissipation area is enlarged, the heat dissipation efficiency of the resistance main body is improved, and the practicability of the device is improved.

[0008] The utility model further sets up, the top of time delay power-off module is sequentially provided with public connection end, negative connection end, NC connection end, NO connection end and positive connection end, and one side of public connection end, negative connection end, NC connection end, NO connection end and positive connection end is provided with welding plate.

[0009] As preferred, by sequentially arranging the public connection end, the negative connection end, the NC connection end, the NO connection end and the positive connection end on the top of the time delay power-off module, and arranging the welding plate on one side of the public connection end, the negative connection end, the NC connection end, the NO connection end and the positive connection end, the resistance main body can be stably installed on the top of the time delay power-off module through the plate-shaped pin, thereby achieving the use effect.

[0010] The utility model further sets up, the plate-shaped pin is arranged as the special pin with rectangular cross section, and the side long edge of plate-shaped pin is welded on the welding plate on one side of the public connection end, the negative connection end and the NC connection end arranged on the top of time delay power-off module.

[0011] As preferred, by arranging the plate-shaped pin as the special pin with rectangular cross section, and welding the side long edge of the plate-shaped pin on the welding plate on one side of the public connection end, the negative connection end and the NC connection end arranged on the top of the time delay power-off module, the resistance main body connected with the time delay power-off module has the time delay power-off function and the protection circuit element function, thereby improving the practicability of the device.

[0012] The utility model further sets up, the lug is fixedly installed at the both sides short edge of plate-shaped pin, and the lug is staggered and arranged with multiple groups.

[0013] As preferred, by fixing the lug at the both sides short edge of the plate-shaped pin, and arranging the lug with multiple groups in a staggered manner, when the plate-shaped pin is welded, the lug can increase the contact area with the connection, thereby achieving better welding effect.

[0014] The utility model further sets up, the lug is constituted by rectangular plate and round plate, the diameter of round plate is greater than the length or width of rectangular plate.

[0015] As preferred, by constituting the lug by rectangular plate and round plate, the diameter of round plate is greater than the length or width of rectangular plate, when the pin of other element is installed on the plate pin, by setting the pin of other element on the lug, the contact area of the pin of other element and the plate pin can be enhanced, thus better welding effect is achieved.

[0016] The utility model further sets up, the plate pin is bent and sets up, and the plate pin and the lug of fixed installation in the one side of plate pin select the material of good conductivity.

[0017] As preferred, by bending the plate pin, the installation of the plate pin is facilitated, and the plate pin and the lug of fixed installation in the one side of plate pin select the material of good conductivity, thus better heat conduction effect is achieved, and the practicability of the device is enhanced.

[0018] To sum up, the utility model mainly has the following beneficial effects:

[0019] 1, the utility model discloses a resistance main body, plate pin, delay power-off module, lug and heat sink are set up, solve the problem that the current thermistor use effect is not good, by setting up the plate pin of the cross section of being set up as rectangle on the both sides of resistance main body, when resistance main body is fixedly installed on the public connection end, negative pole connection end and NC connection end of delay power-off module through plate pin, because the contact area of plate pin and public connection end, negative pole connection end and NC connection end is larger, after welding, resistance main body can be more stably installed on the one side of delay power-off module, avoid the phenomenon that resistance main body appears to fall off due to the unstable pin welding when the device produces the swing, and set up the pin as plate, can expand the pin heat dissipation area, thus improve the heat dissipation efficiency of resistance main body, and the practicability of the device is enhanced.

[0020] 2, the utility model discloses a resistance main body, heat sink is set up on the surface of resistance main body, through the heat sink set up, can improve the contact area of resistance main body and air, thus improve the heat dissipation effect of resistance main body, still through fixed installation multiple groups of lugs on the both sides of plate pin, one end of lug is provided with round plate, when other elements need to be welded on the plate pin of resistance main body, by setting the pin of other elements on the lug of plate pin side, the contact area of the pin of other elements and plate pin can be enhanced, thus the stability of the connection between the two is improved, and the device is more practical. DRAWINGS

[0021] Figure 1The utility model discloses a resistance main body structure schematic diagram.

[0022] Figure 2 The utility model discloses a delay power-off module structure schematic diagram.

[0023] Figure 3 The utility model discloses a partial enlarged view.

[0024] Mark explanation:

[0025] 1, resistance main body, 2, plate -shaped pin, 3, delay power-off module, 4, boss, 5, heat dissipation plate. Specific implementation

[0026] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model and can not be understood as limiting the utility model.

[0027] The embodiments will be described below according to the overall structure of the utility model.

[0028] Please refer to Figures 1-3 , including resistance main body 1, and both sides of resistance main body 1 are fixedly installed with heat dissipation plate 5, and the contact area of resistance main body 1 and air can be enhanced through the heat dissipation plate 5 arranged, thereby good heat dissipation effect can be reached, and one end of resistance main body 1 is fixedly installed with plate -shaped pin 2, and both sides of plate -shaped pin 2 are provided with boss 4, and plate -shaped pin 2 is installed at the top of delay power-off module 3, and delay power-off module 3 and resistance main body 1 are connected on one side through plate -shaped pin 2, thereby a plurality of functions such as delay power-off function and protection circuit element can be realized.

[0029] In the above embodiment, specifically, please refer to Figure 2 The top of delay power-off module 3 is sequentially provided with a common connection end, a negative connection end, an NC connection end, an NO connection end and a positive connection end, and one side of the common connection end, the negative connection end, the NC connection end, the NO connection end and the positive connection end is provided with a welding plate, by sequentially providing the common connection end, the negative connection end, the NC connection end, the NO connection end and the positive connection end on the top of delay power-off module 3, and the common connection end, the negative connection end, the NC connection end, the NO connection end and the positive connection end are provided with the welding plate on one side, resistance main body 1 can be stably installed on the top of delay power-off module 3 through plate -shaped pin 2, thereby reaching the use effect.

[0030] In the above embodiment, specifically, please refer to Figure 1 And Figure 2The plate-shaped pin 2 is a special pin with a rectangular cross section, and one side of the long edge of the plate-shaped pin 2 is welded on the welding plate on one side of the common connection end, the negative connection end and the NC connection end arranged on the top of the time delay power-off module 3. By arranging the plate-shaped pin 2 as a special pin with a rectangular cross section, and welding one side of the long edge of the plate-shaped pin 2 on the welding plate on one side of the common connection end, the negative connection end and the NC connection end arranged on the top of the time delay power-off module 3, the resistance body 1 connected with the time delay power-off module 3 has the functions of time delay power-off and protection of circuit elements, and the practicability of the device is enhanced.

[0031] In the above embodiment, please refer to the specific Figure 3 The protruding block 4 is fixedly installed at the two short edges of the plate-shaped pin 2, and a plurality of groups of the protruding block 4 are arranged alternately. When the plate-shaped pin 2 is welded, the protruding block 4 can increase the contact area with the connection, so as to achieve better welding effect.

[0032] In the above embodiment, please refer to the specific Figure 3 The protruding block 4 is composed of a rectangular plate and a circular plate, and the diameter of the circular plate is greater than the length or width of the rectangular plate. When the pins of other elements are installed on the plate-shaped pin 2, the pins of other elements are arranged on the protruding block 4, so as to increase the contact area between the pins of other elements and the plate-shaped pin 2, and better welding effect is achieved.

[0033] In the above embodiment, please refer to the specific Figure 1 The plate-shaped pin 2 is bent, and the plate-shaped pin 2 and the protruding block 4 fixedly installed on one side of the plate-shaped pin 2 are made of materials with good electrical conductivity. By bending the plate-shaped pin 2, the installation of the plate-shaped pin 2 is facilitated, and the plate-shaped pin 2 and the protruding block 4 fixedly installed on one side of the plate-shaped pin 2 are made of materials with good electrical conductivity, so as to achieve better heat conduction effect and enhance the practicability of the device.

[0034] In practical operation, this invention requires the following steps: First, the plate-shaped pins 2, which are fixedly mounted on one side of the resistor body 1, need to be bent to facilitate their installation. Then, the plate-shaped pins 2 are soldered and fixedly mounted on the common connection terminal, negative connection terminal, and NC connection terminal on one side of the time-delay power-off module 3. Because the contact area between the plate-shaped pins 2 and the common connection terminal, negative connection terminal, and NC connection terminal is large, soldering allows the resistor body 1 to be more stably mounted on one side of the time-delay power-off module 3. This prevents the resistor body 1 from detaching from the time-delay power-off module 3 due to instability in the pin soldering when the device shakes. Furthermore, setting the pins to a plate shape expands the pin distribution. The heat dissipation area is increased, thereby improving the heat dissipation efficiency of the resistor body 1 and enhancing the practicality of the device. At the same time, a heat sink 5 is provided on the surface of the resistor body 1. The heat sink 5 can increase the contact area between the resistor body 1 and the air, thereby improving the heat dissipation effect of the resistor body 1. In addition, multiple sets of bumps 4 are fixedly installed on both sides of the plate-shaped pins 2. One end of the bump 4 is provided with a circular plate. When other components need to be soldered to the plate-shaped pins 2 of the resistor body 1, the contact area between the pins of other components and the plate-shaped pins 2 can be increased by placing the pins of other components on the side of the plate-shaped pins 2 provided by the bumps 4, thereby improving the stability of the connection between the two and making the device more practical.

[0035] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A thermistor comprising a resistive body (1), characterized in that: Both sides of the resistance body (1) are fixedly installed with heat dissipation plates (5), one end of the resistance body (1) is fixedly installed with a plate-shaped pin (2), both sides of the plate-shaped pin (2) are provided with protrusions (4), and the plate-shaped pin (2) is installed on the top of the time delay power-off module (3).

2. A thermistor according to claim 1, characterised in that: The top of the time delay power-off module (3) is sequentially provided with a common connection end, a negative connection end, an NC connection end, an NO connection end and a positive connection end, and one side of the common connection end, the negative connection end, the NC connection end, the NO connection end and the positive connection end is provided with a welding plate.

3. A thermistor according to claim 1, wherein: The plate-shaped pin (2) is a special pin with a rectangular cross section, and one side of the long edge of the plate-shaped pin (2) is welded on the welding plate on one side of the common connection end, the negative connection end and the NC connection end provided on the top of the time delay power-off module (3).

4. A thermistor according to claim 1, wherein: The protrusions (4) are fixedly installed on both sides of the short edge of the plate-shaped pin (2), and the protrusions (4) are staggered and provided with multiple groups.

5. A thermistor according to claim 1, wherein: The protrusions (4) are composed of a rectangular plate and a circular plate, and the diameter of the circular plate is greater than the length or width of the rectangular plate.

6. A thermistor according to claim 1, wherein: The plate-shaped pin (2) is bent, and the plate-shaped pin (2) and the protrusions (4) fixedly installed on one side of the plate-shaped pin (2) are made of materials with good conductivity.

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