Splicing type NTC (Negative Temperature Coefficient) thermistor

Abstract

The utility model discloses a splicing piece type NTC (Negative Temperature Coefficient) thermistor and aims to solve the technical problem that in the prior art, the NTC thermistor is spliced by adopting a manner of matching a mounting frame with a bolt and matching with thermistor pin welding, and the splicing manner is relatively slow. The NTC thermistor comprises an NTC thermistor body, pins, spiral wires, splicing boxes, pressing blocks, bending strips, stand columns, a base, inserting holes and through holes, the two pins are installed in the NTC thermistor body, the spiral wires are installed on the outer surfaces of the pins in an embedded mode, the splicing boxes are fixedly connected to the outer surfaces of the pins, the spiral wires are located in the splicing boxes, and the pressing blocks are located in the splicing boxes. The inner wall of the splicing box is fixedly connected with a base, a pressing block is installed in the splicing box in a sliding mode, a bending strip is installed on the outer surface of the pressing block, and the NTC thermistor solves the technical problem that an existing NTC thermistor is assembled in the mode that a mounting frame is matched with a bolt and then matched with thermistor pin welding, and splicing is slow through the design.

Description

Technical Field

[0001] The utility model belongs to the technical field of NTC thermistors, and in particular relates to a splicable chip-type NTC thermistor. Background Art

[0002] NTC is the abbreviation of Negative Temperature Coefficient, which means negative temperature coefficient. It generally refers to semiconductor materials or components with large negative temperature coefficient. The so-called NTC thermistor is a negative temperature coefficient thermistor, which is made of metal oxides such as manganese, cobalt, nickel and copper as the main materials and is made by ceramic technology. These metal oxide materials have semiconductor properties because they are completely similar to semiconductor materials such as germanium and silicon in terms of conductivity. When multiple NTC thermistors are needed in a circuit, multiple NTC thermistors need to be assembled and spliced. The existing splicing method usually uses a mounting frame with bolts and then the thermistor pin welding for assembly. However, this method is slow to splice and subsequent disassembly is also inconvenient. Therefore, a new type of splicable chip NTC thermistor is designed to change the above technical defects. Utility Model Content

[0003] (1) Technical issues to be solved

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a splicable chip-type NTC thermistor, which aims to solve the technical problem that the NTC thermistor in the prior art is assembled by using a mounting frame with bolts and then welding the thermistor pins, and this method of splicing is relatively slow.

[0005] (2) Technical solution

[0006] In order to solve the above technical problems, the utility model provides a splicable chip-type NTC thermistor, which includes an NTC thermistor, a pin, a spiral wire, a splicing box, a pressing block, a bending strip, a column, a base, a jack and a through hole. Two pins are installed inside the NTC thermistor, and the outer surfaces of the pins are inlaid with spiral wires. The outer surfaces of the pins are fixedly connected to the splicing box, and the spiral wire is located inside the splicing box. The inner wall of the splicing box is fixedly connected to the base, the inside of the splicing box is slidably installed with a pressing block, and the outer surface of the pressing block is installed with a bending strip, the top surface of the splicing box is provided with a through hole, the inside of the through hole is slidably installed with a column, and the bottom end of the column is fixedly connected to the top surface of the pressing block, and the outer surface of the splicing box is provided with a jack.

[0007] When using the NTC thermistor of the present technical solution, the NTC thermistor to be spliced ​​is held and the pins are inserted into the splicing box from the jack. The jack is inserted into the splicing box and penetrates from the inside of the spiral wire until it touches the inner wall of the splicing box. Then, the column is pressed to move the pressure block and the bending strip toward the base. The pressure block descends to squeeze the spiral wire to flatten it. The spiral wire flattens the pins of the NTC thermistor to be spliced ​​and binds them for installation, thereby installing the pins of the NTC thermistor. The pressure block descends and presses the bending strip downward. The bending strip presses down and bends the pins of the NTC thermistor to be spliced ​​that extend out of the base. The pins are pressed down and bent against the surface of the base, thereby reinforcing the pins of the NTC thermistor, thereby realizing rapid splicing of the NTC thermistor, thereby avoiding the traditional NTC thermistor assembly method of using a mounting frame with bolts and then welding the thermistor pins, which is relatively slow.

[0008] Preferably, a rotating handle is installed on the top of the column, and two L-shaped fixing strips are fixedly connected to the top surface of the splicing box. Through the arrangement of the rotating handle and the L-shaped fixing strips, the rotating handle rotates its two ends to enter under the two L-shaped fixing strips for fixing, thereby fixing the column and increasing its stability in use.

[0009] Furthermore, a spring is fixedly connected to the top surface of the pressing block, the top of the spring is fixedly connected to the inner wall of the splicing box, and the spring is sleeved inside the column. Through the setting of the spring, the pressing block is pushed down under the action of the spring elastic force to prevent the pressing block from loosening during use.

[0010] Furthermore, a groove is formed on the top surface of the base, and the spiral wire is located inside the groove. The setting of the groove can limit the position of the spiral wire and prevent the spiral wire from rolling during extrusion to affect the extrusion effect.

[0011] Furthermore, a limiting groove is provided on the outer surface of the base. By setting the limiting groove, the bending part of the pin is fixed, thereby increasing the fixing effect of the pin.

[0012] Furthermore, an anti-skid groove is provided on the outer surface of the pin away from the NTC thermistor. Through the provision of the anti-skid groove, the spiral wire is flattened and enters the anti-skid groove, thereby increasing the contact effect between the spiral wire and the pin and ensuring the stability of the connection.

[0013] (3) Beneficial effects

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model holds the NTC thermistor to be spliced ​​and inserts the pins from the jack into the interior of the splicing box. The jack is inserted into the interior of the splicing box and penetrates from the inside of the spiral wire until it hits the inner wall of the splicing box. Then, the column is pressed to move the pressure block and the bending strip toward the base. The pressure block descends to squeeze the spiral wire to flatten it. The spiral wire flattens the pins of the NTC thermistor to be spliced ​​and binds them for installation, thereby installing the pins of the NTC thermistor. The pressure block descends and presses the bending strip downward. The bending strip presses the pins of the NTC thermistor to be spliced ​​that extend out of the base and bends them downward. The pins are pressed and bent against the surface of the base, thereby reinforcing the pins of the NTC thermistor, thereby realizing the rapid splicing of the NTC thermistor, thereby avoiding the traditional NTC thermistor being assembled by using a mounting frame in combination with bolts and then welding the thermistor pins, which is a relatively slow splicing method. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the NTC thermistor of the utility model;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the pins of the NTC thermistor of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the NTC thermistor splicing box of the utility model;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the NTC thermistor base of the utility model;

[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the NTC thermistor block of the utility model;

[0021] Figure 6 This utility model NTC thermistor Figure 1 Enlarged structural diagram at A in the middle.

[0022] The markings in the attached figure are: 1. NTC thermistor; 2. pin; 3. anti-slip groove; 4. spiral wire; 5. splicing box; 6. pressure block; 7. rotating handle; 8. bending strip; 9. column; 10. base; 11. spring; 12. jack; 13. groove; 14. limit slot; 15. L-shaped fixing strip; 16. through hole. DETAILED DESCRIPTION

[0023] This specific implementation is a splicable chip-type NTC thermistor, and its structural schematic diagram is as follows Figure 1-Figure 6As shown, the NTC thermistor includes an NTC thermistor 1, a pin 2, a spiral wire 4, a splicing box 5, a pressing block 6, a bending strip 8, a column 9, a base 10, a jack 12 and a through hole 16. Two pins 2 are installed inside the NTC thermistor 1, and the outer surface of the pin 2 is inlaid with a spiral wire 4, the outer surface of the pin 2 is fixedly connected with a splicing box 5, and the spiral wire 4 is located inside the splicing box 5, the inner wall of the splicing box 5 is fixedly connected with the base 10, the inside of the splicing box 5 is slidably installed with a pressing block 6, and the outer surface of the pressing block 6 is installed with a bending strip 8, the top surface of the splicing box 5 is provided with a through hole 16, the inside of the through hole 16 is slidably installed with a column 9, and the bottom end of the column 9 is fixedly connected to the top surface of the pressing block 6, and the outer surface of the splicing box 5 is provided with a jack 12.

[0024] Among them, a rotating handle 7 is installed on the top of the column 9, and two L-shaped fixing strips 15 are fixedly connected to the top surface of the splicing box 5. Through the setting of the rotating handle 7 and the L-shaped fixing strip 15, the rotating handle 7 rotates its two ends to enter the bottom of the two L-shaped fixing strips 15 for fixing, so as to fix the column 9 and increase its stability in use. The top surface of the pressing block 6 is fixedly connected with a spring 11, and the top of the spring 11 is fixedly connected to the inner wall of the splicing box 5, and the spring 11 is sleeved inside the column 9. Through the setting of the spring 11, the pressing block 6 is pushed down under the action of the elastic force of the spring 11 to prevent the pressing block 6 from loosening during use. A groove 13 is provided on the top surface of the base 10, and the spiral wire 4 is located inside the groove 13. Through the setting of the groove 13, the spiral wire 4 is limited to prevent the spiral wire 4 from rolling during extrusion and affecting the extrusion effect. The outer surface of the base 10 is provided with a limiting groove 14. Through the setting of the limiting groove 14, the bending part of the pin 2 is fixed to increase the fixing effect of the pin 2.

[0025] In addition, an anti-skid groove 3 is provided on the outer surface of the end of the pin 2 away from the NTC thermistor 1. Through the provision of the anti-skid groove 3, the spiral wire 4 is flattened and enters the interior of the anti-skid groove 3, thereby increasing the contact effect between the spiral wire 4 and the pin 2 and ensuring the stability of the connection.

[0026] Working principle: When using the NTC thermistor of this technical solution, hold the NTC thermistor 1 to be spliced ​​and insert the pin 2 from the jack 12 into the splicing box 5. The jack 12 is inserted into the splicing box 5 and penetrates from the inside of the spiral wire 4 until it hits the inner wall of the splicing box 5. Then press the column 9 to move the pressing block 6 and the bending strip 8 toward the base 10. The pressing block 6 descends and squeezes the spiral wire 4 to flatten it. The spiral wire 4 flattens the pin 2 of the NTC thermistor 1 to be spliced ​​and is installed. Now the pin 2 of the NTC thermistor 1 is installed, the pressing block 6 descends and presses down with the bending strip 8, and the bending strip 8 presses down to bend the pin 2 of the NTC thermistor 1 that extends out of the base 10 and needs to be spliced, and the pin 2 is pressed down and bent against the surface of the base 10, so that the pin 2 of the NTC thermistor 1 is reinforced, and then the NTC thermistor 1 is quickly spliced, avoiding the traditional NTC thermistor 1 using the installation frame with bolts and then the thermistor pin 2 welding for assembly, which is relatively slow.

[0027] All technical features in this embodiment can be freely combined according to actual needs.

[0028] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A splicable chip-type NTC thermistor, the NTC thermistor comprising an NTC thermistor (1), a pin (2), a spiral wire (4), a splicing box (5), a pressing block (6), a bending strip (8), a column (9), a base (10), a jack (12) and a through hole (16), characterized in that: Two pins (2) are installed inside the NTC thermistor (1), and the outer surfaces of the pins (2) are inlaid with spiral wires (4), the outer surfaces of the pins (2) are fixedly connected to a splicing box (5), and the spiral wire (4) is located inside the splicing box (5), the inner wall of the splicing box (5) is fixedly connected to a base (10), a pressing block (6) is slidably installed inside the splicing box (5), and a bending strip (8) is installed on the outer surface of the pressing block (6), a through hole (16) is provided on the top surface of the splicing box (5), a column (9) is slidably installed inside the through hole (16), and the bottom end of the column (9) is fixedly connected to the top surface of the pressing block (6), and a plug hole (12) is provided on the outer surface of the splicing box (5).

2. The splicable chip NTC thermistor according to claim 1, characterized in that: A rotating handle (7) is installed on the top of the column (9), and two L-shaped fixing strips (15) are fixedly connected to the top surface of the splicing box (5).

3. The splicable chip NTC thermistor according to claim 2, characterized in that: A spring (11) is fixedly connected to the top surface of the pressing block (6), the top end of the spring (11) is fixedly connected to the inner wall of the splicing box (5), and the spring (11) is sleeved inside the column (9).

4. The splicable chip NTC thermistor according to claim 3, characterized in that: The top surface of the base (10) is provided with a groove (13), and the spiral wire (4) is located inside the groove (13).

5. The splicable chip NTC thermistor according to claim 4, characterized in that: A limiting groove (14) is provided on the outer surface of the base (10).

6. The splicable chip NTC thermistor according to claim 5, characterized in that: An anti-slip groove (3) is provided on the outer surface of one end of the pin (2) away from the NTC thermistor (1).

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