Integrated sheet type PTC (Positive Temperature Coefficient) thermistor
By introducing heat dissipation grooves, rectangular grooves, heat absorption plates, connecting strips and fin structures into the integrated chip PTC thermistor, the problem of heat not being able to dissipate in time is solved, efficient heat dissipation and convenient maintenance are achieved, circuit fires are avoided, and the safety and reliability of the resistor are ensured.
Patent Information
- Application Number
- CN202421838317.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-07-31
AI Technical Summary
When the existing integrated chip PTC thermistor is working, the heat cannot be dissipated in time, causing the temperature to continue to rise, which can easily cause the circuit to catch fire and affect its continued use.
Heat dissipation slots, rectangular slots, heat absorption plates, connecting strips, mounting plates and fin structures are designed to quickly dissipate heat. The fins can be easily installed and removed through moving blocks and latch mechanisms for easy maintenance.
The heat dissipation efficiency of the thermistor is improved, circuit fire caused by high temperature is avoided, and the continuous use and convenient maintenance of the thermistor are ensured.
Smart Images
Figure CN223377978U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of thermistors, in particular to an integrated chip-type PTC thermistor. Background Art
[0002] Integrated chip PTC thermistors are special semiconductor resistors that are temperature-sensitive. When a certain temperature (Curie temperature) is reached, their resistance increases in a step-like manner as the temperature rises.
[0003] When the temperature of existing integrated chip PTC thermistors rises during operation, the internal electric field is destroyed, making it difficult for conductive electrons to cross the particle interface, resulting in an increase in resistance, thereby achieving the effect of blocking the circuit. However, after the circuit is blocked, the heat emitted by the thermistor cannot be discharged in time, causing the temperature of the integrated board to remain high. This is not conducive to the continued use of the thermistor and can easily cause the circuit to catch fire. Utility Model Content
[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an integrated chip PTC thermistor.
[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: an integrated chip PTC thermistor, including an integrated board, the upper surface of the integrated board is fixedly connected to an integrated shell, a rectangular groove is opened inside the integrated shell, a heat dissipation groove is opened on the inner rear surface of the integrated shell, and the number of the heat dissipation grooves is four; a mounting groove is opened on the left side of the integrated shell, and the number of the mounting grooves is two; a connecting strip is provided inside the mounting slot, a heat absorption plate is fixedly connected to the right side of the connecting strip, a mounting plate is fixedly connected to the left side of the connecting strip, and fins are fixedly connected to the left side of the mounting plate, and the number of the fins is multiple.
[0006] As a further description of the above technical solution:
[0007] The heat absorbing plate is located inside the rectangular groove, the mounting plate is located on the left side of the integrated shell, and the fin is located on the left side of the integrated shell.
[0008] As a further description of the above technical solution:
[0009] A clamping groove is provided on the inner bottom of the installation groove, a limiting groove is provided on the upper surface of the connecting strip, and a moving groove is provided on the left side of the integrated shell.
[0010] As a further description of the above technical solution:
[0011] A moving block is provided inside the moving groove, and a latch is fixedly connected to the lower surface of the moving block. The latch is located inside the limiting groove, and the latch is located inside the latch groove.
[0012] As a further description of the above technical solution:
[0013] The upper surface of the integrated board is fixedly connected to the lower thermal insulation cotton, the upper surface of the lower thermal insulation cotton is fixedly connected to a limiting block, the number of the limiting blocks is multiple, the upper surface of the lower thermal insulation cotton is fixedly connected to a high-temperature resistant shell, the number of the high-temperature resistant shells is multiple, the interior of the high-temperature resistant shell is fixedly connected to a resistor body, the front side of the high-temperature resistant shell is fixedly connected to a wire, the number of the wires is two.
[0014] As a further description of the above technical solution:
[0015] The upper surface of the limiting block is fixedly connected with upper heat insulation cotton, and the upper surface of the upper heat insulation cotton is fixedly connected with a top plate.
[0016] As a further description of the above technical solution:
[0017] A groove is formed on the outer front surface of the integrated housing. There are multiple grooves, and the wires are located inside the grooves.
[0018] As a further description of the above technical solution:
[0019] The outer surface of the wire is fixedly connected with a fixing ring, and the number of the fixing rings is multiple.
[0020] The utility model has the following beneficial effects:
[0021] Compared with the prior art, the integrated chip PTC thermistor generates heat through the heat dissipation groove, rectangular groove, heat absorbing plate, connecting strip, mounting plate and fins. When the thermistor is working, hot air is transferred to the rectangular groove through the heat dissipation groove. Part of the hot air transfers the heat to the outside through the rectangular groove, and more heat is absorbed by the heat absorbing plate. The heat is then transferred to the mounting plate through the connecting strip. The mounting plate then transfers the heat to the fins, and the fins evaporate the heat into the air, so that the heat generated by the thermistor during operation can be quickly dissipated. Compared with the existing thermistor, when the temperature rises during operation, the internal electric field is destroyed, and it is difficult for conductive electrons to cross the particle interface, resulting in an increase in resistance value, thereby achieving the effect of blocking the circuit. However, after the circuit is blocked, the heat dissipated by the thermistor cannot be discharged in time, resulting in the temperature of the integrated board being continuously high, which is not conducive to the continuous use of the thermistor and can easily cause the circuit to catch fire. The integrated chip PTC thermistor can improve the heat dissipation efficiency inside the thermistor, which is conducive to the continuous use of the thermistor and can avoid the occurrence of circuit fire hazards caused by excessively high thermistor temperature.
[0022] Compared with the existing technology, this integrated chip PTC thermistor, through the moving block, the pin, the connecting bar, the mounting groove, the limiting groove, the slot and the fin, pulls the moving block upward, thereby driving the pin to move upward, and the connecting bar can be placed inside the mounting groove. When the connecting bar moves to the rear end of the mounting groove, the moving block is released, and the moving block moves downward under the action of gravity, passes through the limiting groove, and finally falls into the slot. At this time, the installation of the connecting bar is completed, that is, the installation of the fin is completed, and the fin can be disassembled and repaired more conveniently. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is a schematic diagram of the overall structure of an integrated chip PTC thermistor proposed in the utility model;
[0024] Figure 2 This is a cross-sectional view of the overall structure of an integrated chip PTC thermistor proposed in the utility model;
[0025] Figure 3 This is a partial structural diagram of an integrated chip PTC thermistor proposed in the utility model;
[0026] Figure 4 This utility model proposes an integrated chip PTC thermistor Figure 3 A magnified view of the structure at point A;
[0027] Figure 5 This is a structural diagram of the mounting plate of an integrated chip PTC thermistor proposed in the utility model;
[0028] Figure 6 This is a schematic diagram of the moving block structure of an integrated chip PTC thermistor proposed in the utility model;
[0029] Figure 7 This is a structural diagram of the high-temperature resistant shell of an integrated chip PTC thermistor proposed in the utility model.
[0030] Legend:
[0031] 1. Integrated board; 2. Integrated shell; 3. Rectangular slot; 4. Mounting slot; 5. Card slot; 6. Moving slot; 7. Moving block; 8. Card pin; 9. Connecting strip; 10. Limiting slot; 11. Heat absorbing plate; 12. Mounting plate; 13. Fins; 14. Lower thermal insulation cotton; 15. High temperature resistant shell; 16. Resistor body; 17. Wire; 18. Fixing ring; 19. Limiting block; 20. Heat dissipation slot; 21. Upper thermal insulation cotton; 22. Top plate; 23. Groove. DETAILED DESCRIPTION
[0032] Reference Figure 1-7The utility model provides an integrated chip PTC thermistor: including an integrated board 1, the upper surface of the integrated board 1 is fixedly connected to an integrated shell 2, the interior of the integrated shell 2 is provided with a rectangular groove 3, the inner rear surface of the integrated shell 2 is provided with a heat dissipation groove 20, the thermistor generates heat, and the hot air is transferred to the rectangular groove 3 through the heat dissipation groove 20. Part of the hot air transfers the heat to the outside through the rectangular groove 3, and more heat is absorbed by the heat absorbing plate 11, and then the heat is transferred to the mounting plate 12 through the connecting strip 9. The mounting plate 12 then transfers the heat to the fins 13, and the fins 13 evaporate the heat into the air. In the air, the heat generated by the thermistor can be quickly dissipated. There are four heat dissipation slots 20. A mounting slot 4 is provided on the left side of the integrated shell 2. The number of mounting slots 4 is two. A connecting bar 9 is provided inside the mounting slot 4. The material used for the connecting bar 9 is graphene, which has good thermal conductivity. The right side of the connecting bar 9 is fixedly connected to a heat absorbing plate 11, the left side of the connecting bar 9 is fixedly connected to a mounting plate 12, and the left side of the mounting plate 12 is fixedly connected to a fin 13. The fin 13 uses a copper fin 13, which has good thermal conductivity and thermal conductivity. There are multiple fins 13.
[0033] The heat absorbing plate 11 is located inside the rectangular groove 3, the mounting plate 12 is located on the left side of the integrated shell 2, and the fin 13 is located on the left side of the integrated shell 2. A card slot 5 is provided at the inner bottom of the mounting groove 4, and a limiting groove 10 is provided on the upper surface of the connecting bar 9. A movable groove 6 is provided on the left side of the integrated shell 2. A movable block 7 is provided inside the movable groove 6. Pull the movable block 7 upward to drive the bayonet 8 to move upward. At this time, the connecting bar 9 can be placed inside the mounting groove 4. When the connecting bar 9 moves to the rear end of the mounting groove 4, release the movable block 7. The movable block 7 moves downward under the action of gravity, passes through the limiting groove 10, and finally falls into the inside of the card slot 5. At this time, the installation of the connecting bar 9 is completed, that is, the installation of the fin 13 is completed. The lower surface of the movable block 7 is fixedly connected with the bayonet 8, which is located inside the limiting groove 10 and the bayonet 8 is located inside the card slot 5.
[0034] The upper surface of the integrated board 1 is fixedly connected to the lower thermal insulation cotton 14, the upper surface of the lower thermal insulation cotton 14 is fixedly connected to the limiting block 19, the number of the limiting blocks 19 is multiple, the upper surface of the lower thermal insulation cotton 14 is fixedly connected to the high temperature resistant shell 15, the number of the high temperature resistant shell 15 is multiple, the interior of the high temperature resistant shell 15 is fixedly connected to the resistor body 16, the front side of the high temperature resistant shell 15 is fixedly connected to the wire 17, the number of the wire 17 is two, the upper surface of the limiting block 19 is fixedly connected to the upper thermal insulation cotton 21, the upper surface of the upper thermal insulation cotton 21 is fixedly connected to the top plate 22, the outer front surface of the integrated shell 2 is provided with a groove 23, the number of the grooves 23 is multiple, the wire 17 is located inside the groove 23, the outer surface of the wire 17 is fixedly connected to the fixing ring 18, the number of the fixing ring 18 is multiple.
[0035] Working principle: The thermistor generates heat during operation, and the hot air is transferred to the rectangular slot 3 through the heat dissipation slot 20. Part of the hot air transfers the heat to the outside through the rectangular slot 3, and more heat is absorbed by the heat absorbing plate 11, and then the heat is transferred to the mounting plate 12 through the connecting strip 9. The mounting plate 12 then transfers the heat to the fins 13, and the fins 13 evaporate the heat into the air, so that the heat generated by the thermistor can be quickly dissipated.
[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. An integrated chip PTC thermistor, comprising an integrated board (1), characterized in that: The upper surface of the integrated board (1) is fixedly connected to an integrated shell (2), a rectangular groove (3) is provided inside the integrated shell (2), a heat dissipation groove (20) is provided on the inner rear surface of the integrated shell (2), and the number of the heat dissipation grooves (20) is four, a mounting groove (4) is provided on the left side of the integrated shell (2), and the number of the mounting grooves (4) is two, a connecting bar (9) is provided inside the mounting groove (4), a heat absorbing plate (11) is fixedly connected to the right side of the connecting bar (9), a mounting plate (12) is fixedly connected to the left side of the connecting bar (9), a fin (13) is fixedly connected to the left side of the mounting plate (12), and the number of the fins (13) is multiple.
2. The integrated chip PTC thermistor according to claim 1, characterized in that: The heat absorption plate (11) is located inside the rectangular groove (3), the mounting plate (12) is located on the left side of the integrated shell (2), and the fin (13) is located on the left side of the integrated shell (2).
3. The integrated chip PTC thermistor according to claim 1, characterized in that: A clamping groove (5) is provided on the inner bottom of the installation groove (4), a limiting groove (10) is provided on the upper surface of the connecting strip (9), and a moving groove (6) is provided on the left side of the integrated housing (2).
4. The integrated chip PTC thermistor according to claim 3, characterized in that: A moving block (7) is provided inside the moving groove (6), and a latch (8) is fixedly connected to the lower surface of the moving block (7). The latch (8) is located inside the limiting groove (10), and the latch (8) is located inside the latch groove (5).
5. The integrated chip PTC thermistor according to claim 1, characterized in that: The upper surface of the integrated board (1) is fixedly connected to a lower heat-insulating cotton (14), the upper surface of the lower heat-insulating cotton (14) is fixedly connected to a limit block (19), the number of the limit blocks (19) is multiple, the upper surface of the lower heat-insulating cotton (14) is fixedly connected to a high-temperature resistant shell (15), the number of the high-temperature resistant shell (15) is multiple, the interior of the high-temperature resistant shell (15) is fixedly connected to a resistor body (16), the front side of the high-temperature resistant shell (15) is fixedly connected to a wire (17), the number of the wires (17) is two.
6. The integrated chip PTC thermistor according to claim 5, characterized in that: The upper surface of the limiting block (19) is fixedly connected to an upper heat-insulating cotton (21), and the upper surface of the upper heat-insulating cotton (21) is fixedly connected to a top plate (22).
7. The integrated chip PTC thermistor according to claim 5, characterized in that: A groove (23) is provided on the outer front surface of the integrated housing (2), and the grooves (23) are multiple in number. The wires (17) are located inside the grooves (23).
8. The integrated chip PTC thermistor according to claim 5, characterized in that: A fixing ring (18) is fixedly connected to the outer surface of the wire (17), and the number of the fixing rings (18) is multiple.