Detachable thermistor

Abstract

The utility model relates to the technical field of thermistors, and discloses a detachable thermistor, which comprises a mounting piece, a circuit is arranged in the mounting piece, a connecting piece is fixedly connected in the mounting piece, the outer wall of the circuit is fixedly connected in the connecting piece, and the outer wall of the circuit is fixedly connected in the connecting piece. An insulating fixing plate and two insulating inserting rods are slidably connected into the connecting piece, pins are installed in the two insulating inserting rods, a thermistor body is fixedly connected to one ends of the pins, positioning holes are formed in the insulating inserting rods, a clamping assembly is arranged in the connecting piece, and the thermistor body is fixedly connected to the other ends of the pins. And the clamping assembly is used for limiting the insulating inserting rod and the insulating fixing plate. According to the utility model, the problem that the thermistor is difficult to replace quickly and then is difficult to adapt to flexible use requirements is solved, and the resistor can be quickly and conveniently assembled and disassembled, the downtime of equipment is reduced, the maintenance efficiency is improved, and the resistor is further adapted to more application scenes.

Description

Technical Field

[0001] This utility model relates to the field of thermistor technology, and in particular to a detachable thermistor. Background Technology

[0002] A thermistor is a resistor that is sensitive to temperature changes; its resistance changes significantly with temperature. It is widely used in temperature measurement, monitoring, and control. The main reason for using detachable thermistors is their convenience and flexibility: the detachable design allows the sensor to be quickly installed, maintained, or replaced without damaging the equipment, making it particularly suitable for scenarios requiring regular calibration or switching between multiple devices. At the same time, this design improves maintenance efficiency, reduces downtime, and ensures the long-term reliability and accuracy of the temperature measurement system in complex industrial environments.

[0003] Traditional thermistors are typically connected to circuits via direct soldering or fixed mounting, utilizing the characteristic of their resistance changing with temperature for temperature detection. They are usually integrated into voltage divider circuits, bridge circuits, or connected to the ADC interface of a microcontroller to convert temperature changes into an electrical signal output. These thermistors are mostly used in stationary applications and generally do not require frequent disassembly or replacement after installation. However, they require periodic calibration during long-term use to ensure the accuracy of temperature measurements. Furthermore, their relatively fixed installation method makes them suitable for applications with stable environments and low equipment maintenance requirements, such as embedded temperature control systems in household appliances or industrial equipment.

[0004] In order to provide a stable connection, traditional thermistors are usually welded, glued or directly embedded in the equipment. This setup makes it difficult to quickly replace the thermistor. Once a fault occurs or replacement is needed, the equipment may need to be shut down for a long time, which makes it difficult to adapt to the needs of flexible use. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a detachable thermistor, which aims to improve the problem that traditional thermistors are difficult to replace quickly. Once a fault occurs or replacement is needed, the equipment may need to be shut down for a long time, making it difficult to adapt to flexible usage requirements.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a detachable thermistor, including a mounting component, wherein a circuit is provided inside the mounting component, a connector is fixedly connected inside the mounting component, the outer wall of the circuit is fixedly connected inside the connector, an insulating fixing plate and two insulating plug rods are slidably connected inside the connector, each of the two insulating plug rods has a pin installed inside, one end of the pin is fixedly connected to the thermistor body, a positioning hole is opened inside the insulating plug rod, and a snap-fit ​​component is provided inside the connector, the snap-fit ​​component is used to limit the position of the insulating plug rod and the insulating fixing plate;

[0007] The snap-fit ​​assembly includes a first spring sheet, one end of which is fixedly connected to the inside of the connector, and the other end of which is fixedly connected to a recessed spring piece. A second spring sheet is fixedly connected inside the insulating fixing plate, and one end of the second spring sheet is fixedly connected to a protruding spring piece.

[0008] Furthermore, a limiting plate is fixedly connected to the outer wall of the insulating fixing plate, a sliding groove is provided inside the connector, a limiting sleeve is slidably connected to the outer wall of the connector, recessed limiting plates are fixedly connected to both the upper and lower sides of the limiting sleeve, and a slider is fixedly connected to the inner wall of the limiting sleeve.

[0009] Furthermore, the outer wall of the insulating plug rod is fixedly connected to both sides of the outer wall of the insulating fixing plate, and the insulating plug rod, the insulating fixing plate and the pre-set slot inside the connector are matched.

[0010] Furthermore, the end of the circuit is slidably connected inside the positioning hole, and one end of the circuit is in contact with the pin.

[0011] Furthermore, the outer wall of the slider is slidably connected to the inside of the groove, and the outer wall of the recessed limiting plate is slidably connected to the outer wall of the spring sheet.

[0012] Furthermore, the outer wall of the recessed limiting plate is slidably connected to the outer wall of the recessed spring piece, and the protrusion of the recessed limiting plate is engaged with the recess of the recessed spring piece.

[0013] Furthermore, the first spring sheet and the second spring sheet are attached to each other, and the concave spring sheet and the convex spring sheet are attached to each other.

[0014] Furthermore, the outer wall of the limiting plate is slidably connected to the inside of the connecting member, and the limiting plate is used to position the insulating fixing plate.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, the insulating plug rod and the insulating fixing plate are first inserted into the interior of the connector, so that the line is inserted into the interior of the positioning hole and makes contact with the pin. Then, the spring plate 2 drives the protruding spring to lock on one side of the recessed spring, thereby achieving the limit. During this process, the limit plate is used to limit the position, which solves the problem that it is difficult to quickly replace the thermistor and thus difficult to adapt to the flexible use requirements. It achieves quick and convenient disassembly and assembly of the resistor, reduces equipment downtime, improves maintenance efficiency, and thus adapts to more application scenarios.

[0017] 2. In this utility model, when installing the thermistor body, the limiting plate positions the insulating plug rod and the insulating fixing plate. At the same time, it can also prevent the insulating plug rod and the insulating fixing plate from shifting during use. Then, pulling the limiting sleeve moves the protrusion of the recessed limiting plate to the recess of the recessed spring, thereby limiting the recessed spring and preventing it from falling off. This achieves a stable connection and avoids signal noise or errors caused by loosening or poor contact, thus ensuring the accuracy and reliability of temperature measurement results. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a detachable thermistor proposed in this utility model.

[0019] Figure 2 This is a schematic diagram of the internal structure of the connector of a detachable thermistor proposed in this utility model.

[0020] Figure 3 This is a schematic diagram of one side of the insulating plug-in rod of a detachable thermistor proposed in this utility model.

[0021] Figure 4 This is a schematic diagram of one side of the recessed limiting plate structure of a detachable thermistor proposed in this utility model.

[0022] Legend:

[0023] 1. Mounting component; 2. Wiring; 3. Connector; 4. Spring sheet one; 5. Insulating plug rod; 6. Pin; 7. Insulating fixing plate; 8. Spring sheet two; 9. Raised spring sheet; 10. Limiting plate; 11. Positioning hole; 12. Thermistor body; 13. Slide groove; 14. Limiting sleeve; 15. Recessed limiting plate; 16. Slider; 17. Recessed spring sheet. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figure 1 - Figure 4 This utility model provides an embodiment of a detachable thermistor, including a mounting component 1. A circuit 2 is disposed inside the mounting component 1. A connector 3 is fixedly connected inside the mounting component 1, positioning the insulating plug rod 5, pin 6, and the thermistor body 12 via the connector 3. The outer wall of the circuit 2 is fixedly connected inside the connector 3. An insulating fixing plate 7 and two insulating plug rods 5 are slidably connected inside the connector 3. Pins 6 are installed inside each of the two insulating plug rods 5, and one end of the pin 6 is fixedly connected to the thermistor body 12. Positioning the pins 6 inside the insulating plug rods 5 facilitates contact and connection between the pins 6 and the circuit 2 during installation. A positioning hole 11 is opened inside the insulating plug rod 5. The pins 6 are shorter than a portion of the insulating plug rod 5, facilitating the movement of the circuit 2 into the positioning hole 11 and connection with the pins 6. A snap-fit ​​assembly is disposed inside the connector 3, limiting the movement of the insulating plug rod 5 and the insulating fixing plate 7.

[0026] The snap-fit ​​assembly includes a spring sheet 4, one end of which is fixedly connected to the inside of the connector 3, and the other end of which is fixedly connected to a recessed spring sheet 17. A spring sheet 8 is fixedly connected inside the insulating fixing plate 7, and one end of the spring sheet 8 is fixedly connected to a protruding spring sheet 9. The elasticity of the spring sheet 8 and the spring sheet 4 can drive the protruding spring sheet 9 and the recessed spring sheet 17 to snap together, thereby facilitating the limiting of the insulating plug rod 5 and the insulating fixing plate 7.

[0027] Reference Figure 1 and Figure 4A limiting plate 10 is fixedly connected to the outer wall of the insulating fixing plate 7. The limiting plate 10 positions the insulating plug rod 5 and the insulating fixing plate 7 and prevents the insulating plug rod 5 and the insulating fixing plate 7 from shifting arbitrarily. A sliding groove 13 is provided inside the connector 3. A limiting sleeve 14 is slidably connected to the outer wall of the connector 3. Recessed limiting plates 15 are fixedly connected to both the upper and lower sides of the limiting sleeve 14. A slider 16 is fixedly connected to the inner wall of the limiting sleeve 14. Pulling the limiting sleeve 14 causes the slider 16 to slide inside the sliding groove 13, thereby moving the recessed limiting plate 15 to one side of the recessed spring piece 17. The protrusion of the recessed limiting plate 15 engages with the recess of the recessed spring piece 17, thereby limiting the recessed spring piece 17 and preventing the recessed spring piece 17 from loosening and the insulating plug rod 5 from shifting. The outer wall of the connecting rod 5 is fixedly connected to both sides of the outer wall of the insulating fixing plate 7. The insulating plug rod 5, the insulating fixing plate 7 and the pre-set slot inside the connector 3 are matched. The end of the line 2 is slidably connected to the inside of the positioning hole 11. One end of the line 2 is attached to the pin 6. The outer wall of the slider 16 is slidably connected to the inside of the slide groove 13. The outer wall of the recessed limiting plate 15 is slidably connected to the outer wall of the spring sheet 4. The outer wall of the recessed limiting plate 15 is slidably connected to the outer wall of the recessed spring sheet 17. The protrusion of the recessed limiting plate 15 is engaged with the recess of the recessed spring sheet 17. The spring sheet 4 and the spring sheet 8 are attached to each other. The recessed spring sheet 17 and the protruding spring sheet 9 are attached to each other. The outer wall of the limiting plate 10 is slidably connected to the inside of the connector 3. The limiting plate 10 is used to position the insulating fixing plate 7.

[0028] Working principle: When a detachable thermistor is needed, the insulating plug rod 5 and the insulating fixing plate 7 are first inserted into the connector 3 by the positioning of the limiting plate 10. At this time, the inner wall of the connector 3 applies pressure to the protruding spring 9, causing the protruding spring 9 to deform and shift the spring plate 8 inward. When the insulating plug rod 5 and the insulating fixing plate 7 have completely moved into the connector 3, the circuit 2 moves into the preset positioning hole 11 inside the insulating plug rod 5 and is in contact with the pin 6. At the same time, when the protruding spring 9 moves to the middle of the connector 3, it is no longer under force and causes the spring plate 8 to reset, so that the protruding part of the protruding spring 9 is stuck on one side of the recessed spring 17, thus fixing the insulating plug rod 5 and the insulating fixing plate 7. Pull the limiting sleeve 14 to slide on the outer wall of the connector 3, thereby moving the recessed limiting plate 15 to the recessed part of the recessed spring piece 17. At this time, the protrusion of the recessed limiting plate 15 moves to the recessed part of the recessed spring piece 17, which just limits the recessed spring piece 17 to prevent accidental dislodgement. When disassembling, just apply a certain force to pull the limiting sleeve 14 to separate the recessed limiting plate 15 from the recessed spring piece 17. Then pull the recessed spring piece 17 to separate the recessed spring piece 17 from the protruding spring piece 9. Then the insulating plug rod 5 and the insulating fixing plate 7 can be removed, thereby realizing the disassembly and assembly of the pin 6 and the thermistor body 12. In addition, after installation, the pin 6 and the line 2 are stably connected by the limiting of the recessed limiting plate 15 and the limiting plate 10, preventing them from falling off.

[0029] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A detachable thermistor, comprising a mounting component (1), characterized in that: The mounting component (1) has a circuit (2) inside. The mounting component (1) is fixedly connected to a connector (3). The outer wall of the circuit (2) is fixedly connected to the inside of the connector (3). The connector (3) has an insulating fixing plate (7) and two insulating plug rods (5) slidably connected inside. The two insulating plug rods (5) are each equipped with a pin (6). One end of the pin (6) is fixedly connected to a thermistor body (12). The insulating plug rod (5) has a positioning hole (11) inside. The connector (3) has a snap-fit ​​assembly inside. The snap-fit ​​assembly is used to limit the position of the insulating plug rod (5) and the insulating fixing plate (7). The snap-fit ​​assembly includes a spring sheet (4), one end of which is fixedly connected to the inside of the connector (3), and the other end of which is fixedly connected to a recessed spring sheet (17). A spring sheet (8) is fixedly connected inside the insulating fixing plate (7), and one end of which is fixedly connected to a protruding spring sheet (9).

2. A detachable thermistor according to claim 1, characterized in that: The outer wall of the insulating fixing plate (7) is fixedly connected to a limiting plate (10), the inside of the connecting member (3) is provided with a sliding groove (13), the outer wall of the connecting member (3) is slidably connected to a limiting sleeve (14), the upper and lower sides of the limiting sleeve (14) are fixedly connected to recessed limiting plates (15), and the inner wall of the limiting sleeve (14) is fixedly connected to a slider (16).

3. A detachable thermistor according to claim 1, characterized in that: The outer wall of the insulating plug rod (5) is fixedly connected to both sides of the outer wall of the insulating fixing plate (7), and the insulating plug rod (5), the insulating fixing plate (7) and the pre-set slot inside the connector (3) are matched.

4. A detachable thermistor according to claim 1, characterized in that: The end of the line (2) is slidably connected inside the positioning hole (11), and one end of the line (2) is in contact with the pin (6).

5. A detachable thermistor according to claim 2, characterized in that: The outer wall of the slider (16) is slidably connected to the inside of the groove (13), and the outer wall of the recessed limiting plate (15) is slidably connected to the outer wall of the spring sheet (4).

6. A detachable thermistor according to claim 2, characterized in that: The outer wall of the recessed limiting plate (15) is slidably connected to the outer wall of the recessed spring piece (17), and the protrusion of the recessed limiting plate (15) is engaged with the recess of the recessed spring piece (17).

7. A detachable thermistor according to claim 2, characterized in that: The first spring sheet (4) is attached to the second spring sheet (8), and the recessed spring sheet (17) is attached to the raised spring sheet (9).

8. A detachable thermistor according to claim 2, characterized in that: The outer wall of the limiting plate (10) is slidably connected to the inside of the connector (3), and the limiting plate (10) is used to position the insulating fixing plate (7).

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