NTC temperature sensor for intelligent air supply system

Abstract

The utility model relates to the technical field of intelligent air supply systems, in particular to an NTC (Negative Temperature Coefficient) temperature sensor for an intelligent air supply system. The NTC temperature sensor for the intelligent air supply system comprises a detection probe, a mounting sleeve, a bayonet socket and a metal contact piece, the rear side of the detection probe is fixedly connected with the mounting sleeve, the rear side of the detection probe is fixedly connected with the bayonet socket, the bayonet socket is located in the mounting sleeve, and the metal contact piece is fixedly connected with the mounting sleeve. Metal contact pieces are fixedly connected to the upper end and the lower end in the bayonet socket, the connector is arranged at the end, away from the detection probe, of the installation sleeve in a pluggable mode, and the wire is connected to the end, away from the installation sleeve, of the connector. Through the arrangement of the mounting sleeve, the joint, the fastening nut and the like, the NTC temperature sensor can be detached, local replacement can be carried out according to a damaged part, the whole NTC temperature sensor does not need to be replaced, the maintenance efficiency is improved, and the production cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of intelligent air supply system technology, and in particular to an NTC temperature sensor used in an intelligent air supply system. Background Technology

[0002] An NTC temperature sensor is a temperature sensing device based on a negative temperature coefficient thermistor. Its core characteristic is that the resistance decreases as the temperature increases, and this characteristic can be used to accurately measure temperature.

[0003] Patent publication number CN220568287U discloses a waterproof NTC temperature sensor for air conditioners, comprising a metal casing, an NTC thermistor, lead wires, and lead wires. The closed end of the metal casing is hemispherical, with a limiting structure inside and a fixing structure within the limiting structure. One end of the NTC thermistor, lead wires, and lead wires are all fixed in the fixing structure. The NTC thermistor is connected to the lead wire, and one end of the lead wire is connected to the lead wire. The other end of the lead wire extends out of the open end of the metal casing and connects to a pin terminal. Although the above patent has a waterproof structure at the open end of the metal casing, giving the sensor good waterproof, sealing, and insulation performance, when the NTC temperature sensor is partially damaged, due to the integrated design of the sensor, the damaged part cannot be replaced individually; the entire sensor must be replaced. This not only reduces repair efficiency but also increases production costs.

[0004] Therefore, an NTC temperature sensor that can be detached for use in intelligent air supply systems is needed. Utility Model Content

[0005] To overcome the shortcomings of existing patents where, when an NTC temperature sensor suffers partial damage, the integrated design of the sensor prevents individual replacement of the damaged part, necessitating the replacement of the entire sensor, which reduces maintenance efficiency and increases production costs, this utility model provides a detachable NTC temperature sensor for intelligent air supply systems.

[0006] The technical implementation scheme of this utility model is as follows: An NTC temperature sensor for an intelligent air supply system includes a detection probe, a mounting sleeve, a connector, and metal contact pieces. The mounting sleeve is fixedly connected to the rear side of the detection probe, and the connector is also fixedly connected to the rear side of the detection probe. The connector is located inside the mounting sleeve, and metal contact pieces are fixedly connected to both the upper and lower ends inside the connector. The sensor also includes a connector, a wire, a terminal block, a plug, and a fastening nut. A connector is pluggable at the end of the mounting sleeve away from the detection probe. A wire is connected to the end of the connector away from the mounting sleeve, and a terminal block is provided at the end of the wire away from the connector. The terminal block is connected to the control panel of the air conditioner. A plug is fixedly connected to the middle position of the end of the connector near the mounting sleeve. The plug is close to the inner wall of the connector and electrically connected to the metal contact pieces. A fastening nut is fixedly connected to the end of the connector near the mounting sleeve, and the fastening nut is threadedly connected to the mounting sleeve.

[0007] Furthermore, it also includes an internal threaded sleeve and an external threaded sleeve. The detection probe is fixedly connected to the outside of the internal threaded sleeve, and the internal threaded sleeve is threadedly connected to the external threaded sleeve.

[0008] Furthermore, it also includes a mounting plate, a rotating shaft, a first connecting plate, fixing bolts, a second connecting plate, and a fixing nut. The bottom of the detection probe is fixedly connected to the mounting plate, and the bottom of the mounting plate is rotatably equipped with a rotating shaft. The end of the rotating shaft away from the mounting plate is fixedly connected to the first connecting plate. The first connecting plate has two symmetrical sliding grooves on its left and right sides, and fixing bolts are inserted into the sliding grooves. The lower ends of the two fixing bolts are jointly equipped with the second connecting plate, and the lower ends of the fixing bolts are threaded with fixing nuts.

[0009] Furthermore, it also includes a limiting ring and a rubber ring. The limiting ring is fixedly connected to one end of the fastening nut near the plug-in seat. The limiting ring is in close contact with the plug-in seat. A rubber ring is embedded on the side of the limiting ring near the fastening nut. The rubber ring is in close contact with the connector.

[0010] Furthermore, it also includes rubber pads, with rubber pads adhered to the inner sides of both the first and second connecting plates.

[0011] Furthermore, the metal contact piece is elastic.

[0012] Compared with the prior art, this utility model provides an NTC temperature sensor for an intelligent air supply system, which has the following advantages: 1. By setting up a sleeve, connector and fastening nut, the NTC temperature sensor can be disassembled, so that it can be partially replaced according to the damaged part, without replacing the entire NTC temperature sensor, thereby improving maintenance efficiency and saving production costs.

[0013] 2. The external threaded sleeve is fixed to the outside of the internal threaded sleeve, thereby protecting the detection probe and preventing the detection probe from directly contacting high-speed airflow or condensate, thus ensuring the accuracy of temperature measurement.

[0014] 3. By screwing the fixing nut into the lower end of the fixing bolt, the fixing nut pushes the second connecting plate upward, making it fit tightly against the air conditioner surface, thus fixing the detection probe, making the installation of the detection probe more convenient and stable. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional cross-sectional view of the detection probe, plug, and fastening nut of this utility model.

[0017] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.

[0018] Figure 4 This is a three-dimensional sectional view of the connector, wire, and limiting ring of this utility model.

[0019] Figure 5 This is an exploded view of the connector, wire, and fastening nut of this utility model.

[0020] Figure 6 This is a three-dimensional sectional view of the mounting sleeve, mounting plate, and rotating shaft of this utility model.

[0021] In the above attached diagram: 1: detection probe, 2: mounting sleeve, 3: plug socket, 301: metal contact piece, 4: connector, 5: wire, 501: terminal block, 6: plug, 7: fastening nut, 8: internal thread sleeve, 9: external thread sleeve, 10: mounting plate, 11: rotating shaft, 12: first connecting plate, 13: slide groove, 14: fixing bolt, 1401: second connecting plate, 15: fixing nut, 16: limit ring, 17: rubber ring, 18: rubber pad. Detailed Implementation

[0022] References to embodiments herein mean that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0023] Example 1: An NTC temperature sensor for an intelligent air supply system. Please refer to [link / reference]. Figures 1-6The device includes a detection probe 1, a mounting sleeve 2, a connector 3, and metal contact pieces 301. The mounting sleeve 2 is fixedly connected to the rear side of the detection probe 1, and the connector 3 is also fixedly connected to the rear side of the detection probe 1. The connector 3 is located inside the mounting sleeve 2, and metal contact pieces 301 are fixedly connected to both its upper and lower ends inside the connector 3. A connector 4 is pluggably installed at the end of the mounting sleeve 2 away from the detection probe 1. A wire 5 is connected to the end of the connector 4 away from the mounting sleeve 2. A terminal block 501 is installed at the end of the wire 5 away from the connector 4, and the terminal block 501 connects to the air conditioner's control panel. The connector 4 is located near the mounting sleeve 2. A plug 6 is fixedly connected to the middle of one end of the connector 4. The plug 6 is close to the inner wall of the socket 3 and is electrically connected to the metal contact piece 301. A fastening nut 7 is fixedly connected to the end of the connector 4 near the mounting sleeve 2. The fastening nut 7 is threadedly connected to the mounting sleeve 2. A limit ring 16 is fixedly connected to the end of the fastening nut 7 near the socket 3. The limit ring 16 is close to the socket 3. A rubber ring 17 is embedded on the side of the limit ring 16 near the fastening nut 7. The rubber ring 17 is close to the connector 4 and plays a sealing role. The metal contact piece 301 is elastic to ensure tight contact with the plug 6 and improve the reliability of signal transmission.

[0024] When an NTC temperature sensor is needed, first insert connector 4 into the end of the mounting sleeve 2 and rotate the fastening nut 7 to move it to the left along the thread on the mounting sleeve 2 until the fastening nut 7 is tightly against the mounting sleeve 2. At this time, ensure that the limit ring 16 is tightly against the plug socket 3, ensuring that the connection between connector 4 and the mounting sleeve 2 is tight and not easy to loosen. At the same time, plug 6 is in close contact with plug socket 3, and metal contact piece 301 is in contact with the surface of plug 6, thereby connecting connector 4 to detection probe 1. Next, fix detection probe 1 at the air outlet of the air conditioner and connect terminal 501 to the control of the air conditioner. When the air conditioner is in use, detection probe 1 senses the ambient temperature around the air outlet and transmits the temperature signal through metal contact piece 301, plug 6, and wire. 5 and terminal 501 transmit the signal to the air conditioning control system. The control system adjusts the air conditioning operation status according to the temperature signal. When the NTC temperature sensor is damaged, it can be replaced locally according to the damaged part. If the detection probe 1 and its upper parts are damaged: rotate the mounting sleeve 2 to disengage it from the fastening nut 7, and then pull the detection probe 1 to the left to separate the connector 4 from the detection probe 1, so that the detection probe 1 can be replaced. If the connector 4 and its upper parts are damaged: rotate the fastening nut 7 to disengage it from the mounting sleeve 2, and then pull the connector 4 to the right to separate the connector 4 from the detection probe 1, so that the connector 4 can be replaced. Through this modular design, the NTC temperature sensor can be disassembled and replaced without replacing the entire sensor, thereby improving maintenance efficiency and saving production costs.

[0025] Example 2: Based on Example 1, please refer to... Figure 1 and Figure 6An internal threaded sleeve 8 is fixedly connected to the outside of the detection probe 1, and an external threaded sleeve 9 is threadedly connected to the internal threaded sleeve 8.

[0026] After connecting the connector 4 to the detection probe 1, put the external threaded sleeve 9 on the front end of the detection probe 1 so that it contacts the internal threaded sleeve 8. Rotate the external threaded sleeve 9 to fix it on the outside of the thread of the internal threaded sleeve 8, so that the external threaded sleeve 9 protects the detection probe 1 and prevents the detection probe 1 from directly contacting the high-speed airflow or condensate, thereby ensuring the accuracy of temperature measurement.

[0027] Please see Figure 1 and Figure 6 The bottom of the detection probe 1 is fixedly connected to a mounting plate 10. A rotating shaft 11 is rotatably installed at the bottom of the mounting plate 10. A first connecting plate 12 is fixedly connected to the end of the rotating shaft 11 away from the mounting plate 10. The first connecting plate 12 has two symmetrical sliding grooves 13. Fixing bolts 14 are inserted into the sliding grooves 13. A second connecting plate 1401 is provided at the lower end of the two fixing bolts 14. The second connecting plate 1401 has two symmetrical limiting grooves to ensure that the second connecting plate 1401 can move along the fixing bolts 14. A fixing nut 15 is threaded at the lower end of the fixing bolts 14. Rubber pads 18 are glued to the inner sides of both the first connecting plate 12 and the second connecting plate 1401. The rubber pads 18 increase the friction and further stabilize the detection probe 1.

[0028] When it is necessary to fix the detection probe 1, first move the detection probe 1 to the air outlet. Then, rotate the shaft 11 to adjust the position of the first connecting plate 12 so that it contacts the air conditioner. Next, insert the fixing bolt 14 into the slide groove 13 and put the second connecting plate 1401 on the lower end of the fixing bolt 14. Finally, screw the fixing nut 15 into the lower end of the fixing bolt 14. The fixing nut 15 pushes the second connecting plate 1401 to move upward so that it is in close contact with the surface of the air conditioner, thus fixing the detection probe 1. This makes the installation of the detection probe 1 more convenient and stable.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. An NTC temperature sensor for an intelligent air supply system, comprising a detection probe (1), a mounting sleeve (2), a connector (3), and metal contact pieces (301), wherein the mounting sleeve (2) is fixedly connected to the rear side of the detection probe (1), and the connector (3) is fixedly connected to the rear side of the detection probe (1), the connector (3) is located inside the mounting sleeve (2), and metal contact pieces (301) are fixedly connected to both the upper and lower ends inside the connector (3), characterized in that: The utility model also includes a connector (4), a wire (5), a terminal (501), a plug (6) and a fastening nut (7), the connector (4) is provided at the end of the mounting sleeve (2) away from the detection probe (1) in a plug-in manner, the wire (5) is connected to the end of the connector (4) away from the mounting sleeve (2), the terminal (501) is provided at the end of the wire (5) away from the connector (4), the terminal (501) is connected to the control panel of the air conditioner, the plug (6) is fixedly connected to the middle position of the end of the connector (4) close to the mounting sleeve (2), the plug (6) is in close contact with the inner wall of the socket (3) and is electrically connected to the metal contact piece (301), the fastening nut (7) is fixedly connected to the end of the connector (4) close to the mounting sleeve (2), and the fastening nut (7) is threadedly connected to the mounting sleeve (2).

2. An NTC temperature sensor for use in an intelligent air supply system according to claim 1, characterized in that: The utility model also includes an internally threaded sleeve (8) and an externally threaded sleeve (9), the internally threaded sleeve (8) is fixedly connected to the outer side of the detection probe (1), and the externally threaded sleeve (9) is threadedly connected to the internally threaded sleeve (8).

3. An NTC temperature sensor for use in an intelligent air supply system according to claim 2, characterized in that: The utility model also includes a mounting plate (10), a rotating shaft (11), a first connecting plate (12), a fixing bolt (14), a second connecting plate (1401) and a fixing nut (15), the mounting plate (10) is fixedly connected to the bottom of the detection probe (1), the rotating shaft (11) is rotatably arranged at the bottom of the mounting plate (10), the first connecting plate (12) is fixedly connected to the end of the rotating shaft (11) away from the mounting plate (10), the first connecting plate (12) is symmetrically provided with two sliding grooves (13) on the left and right sides, the fixing bolt (14) is inserted into the sliding groove (13), the second connecting plate (1401) is arranged at the lower ends of the two fixing bolts (14), and the fixing nut (15) is threadedly arranged at the lower ends of the fixing bolts (14).

4. An NTC temperature sensor for use in an intelligent air supply system according to claim 3, characterized in that: The utility model also includes a limiting ring (16) and a rubber ring (17), the limiting ring (16) is fixedly connected to the end of the fastening nut (7) close to the socket (3), the limiting ring (16) is in close contact with the socket (3), and the rubber ring (17) is embeddedly arranged on the side of the limiting ring (16) close to the fastening nut (7), and the rubber ring (17) is in close contact with the connector (4).

5. An NTC temperature sensor for use in an intelligent air supply system according to claim 4, characterized in that: The utility model also includes a rubber pad (18), and the rubber pad (18) is attached to the inner sides of the first connecting plate (12) and the second connecting plate (1401).

6. An NTC temperature sensor for use in an intelligent air supply system according to claim 5, characterized in that: The metal contact piece (301) has elasticity.

Images