Communication connection assembly of sensor and refrigerant sensor

By designing a removable connected sensor communication connection component, the problems of inconvenient disassembly and difficult to adjust the length of the communication line are solved, and convenient maintenance and high-quality communication are achieved.

CN222896892UActive Publication Date: 2025-05-23QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD +2
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Patent Information

Application Number
CN202421751253.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-23
Publication Date
2025-05-23
Estimated Expiration
2034-07-23

AI Technical Summary

Technical Problem

The existing refrigerant sensors are inconvenient during disassembly and assembly, and the communication line length is not easy to adjust, resulting in high maintenance costs, poor signal quality and insufficient system aesthetics.

Method used

A communication connection component of a sensor is designed, including a socket part and a plug slot. Combined with the plug part and socket of the communication cable, the removable connection between the communication module and the communication cable is realized, making it easy to disassemble and adjust the wire length.

Benefits of technology

It realizes convenient disassembly and assembly of refrigerant sensors and flexible adjustment of communication cables, reduces maintenance costs, improves signal strength and system aesthetics, and improves overall communication quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of sensors, in particular to a communication connection assembly of a sensor and a refrigerant sensor. The communication connection assembly comprises a socket part which is arranged on a shell of the refrigerant sensor, the socket part is provided with a plug-in groove which is open towards the outer side, and the plug-in groove is internally provided with a contact pin which is connected to a communication module of the refrigerant sensor; the end part of the communication cable is provided with a plug part matched with the shape of the plugging groove, and the plug part is provided with a jack corresponding to the pin; and in a connection state of the communication connection assembly, the plug part of the communication cable is matched with the plug slot of the socket part in a plug-in manner, and the pin is matched with the jack in a plug-in manner, so that the communication module is communicated with the communication cable. According to the scheme, the defects that in the prior art, a refrigerant sensor is inconvenient to disassemble and assemble, and the length of a communication cable is not easy to adjust are overcome, convenient disassembly, assembly and replacement of the communication cable are achieved, and maintenance difficulty is reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of sensors, and in particular to a communication connection component of a sensor and a refrigerant sensor. Background Art

[0002] Technological progress has promoted the popularization of air conditioning systems, especially in residential and commercial areas. With the emphasis on environmental protection, new refrigerants have been widely adopted, but the flammability of environmentally friendly refrigerants has brought new safety issues.

[0003] Refrigerant sensors have therefore become an important technical means to ensure system safety. They are responsible for monitoring refrigerant leaks and maintaining the stability of the air-conditioning system. The design trend of sensors is moving towards easier installation and maintenance, while emphasizing compatibility with existing communication architectures to support real-time data transmission and effective monitoring, thereby improving overall safety and energy efficiency.

[0004] At present, sensors on the market have deficiencies in terms of ease of assembly and disassembly and adjustment of communication line length. In small devices, the complex assembly and disassembly process increases maintenance costs; the fixed length of the communication line limits installation flexibility, which may affect signal quality and system aesthetics, and is difficult to adjust, resulting in signal attenuation and affecting communication effects. Utility Model Content

[0005] The utility model provides a communication connection component of a sensor and a refrigerant sensor, which are used to solve the defects in the prior art that the refrigerant sensor is inconvenient to disassemble and assemble and the length of the communication line is difficult to adjust, thereby realizing convenient disassembly and replacement of the communication cable and reducing the difficulty of maintenance.

[0006] The utility model provides a communication connection component of a sensor, comprising: a socket part, which is arranged on the shell of the refrigerant sensor, the socket part is provided with a plug-in slot open to the outside, and a pin of a communication module connected to the refrigerant sensor is arranged in the plug-in slot; a communication cable, the end of the communication cable is provided with a plug part adapted to the shape of the plug-in slot, and the plug part is provided with a jack corresponding to the pin; in the connected state of the communication connection component, the plug part of the communication cable is plugged and matched with the plug-in slot of the socket part, and the pin is plugged and matched with the jack, so that the communication module is connected to the communication cable.

[0007] According to a communication connection component of a sensor of the utility model, the plug part includes a wiring terminal and an insertion end; the wiring terminal is connected to the communication cable, and the jack is arranged at the insertion end; a sealing ring is arranged between the wiring terminal and the insertion end; in the connected state, the sealing ring is sealed and matched with the plug-in slot.

[0008] According to a communication connection component of a sensor of the utility model, a plurality of the sealing rings are evenly distributed in the length direction of the plug part; or, the sealing ring has a progressive layered structure, and in the length direction of the plug part, the sealing ring is provided with a plurality of annular protrusions for sealingly cooperating with the plug slot.

[0009] According to a communication connection assembly of a sensor of the utility model, the inner side wall of the plug-in slot is formed with a step structure; in the connected state, the insertion end is inserted between the step structures, and the step structure stops at one side of the sealing ring.

[0010] According to a communication connection assembly of a sensor of the utility model, a guide ridge is arranged on the inner surface of at least one side of the step structure; and a guide groove adapted to the guide ridge is arranged on the insertion end.

[0011] According to a communication connection assembly of a sensor of the utility model, a chamfered structure is provided at the opening end of the plug slot, and the chamfered structure forms a wide-angle shape at the opening end of the plug slot.

[0012] According to a communication connection assembly of a sensor of the utility model, the socket part is provided with a limiting protrusion, and the plug part is provided with a press buckle, and the press buckle has a locking groove adapted to the limiting protrusion; in the connected state, the locking groove of the press buckle forms a limiting fit with the limiting protrusion.

[0013] According to a communication connection component of a sensor of the utility model, the buckle is connected to the plug part through an elastic arm, and the limiting protrusion is arranged on the outer surface of the socket part; in the connected state, the buckle forms a limiting fit with the limiting protrusion on the outer side of the socket part.

[0014] The utility model also provides a refrigerant sensor, which is provided with a communication connection component of the sensor described in any one of the above embodiments.

[0015] According to a refrigerant sensor of the utility model, a power module is provided; the power module includes a battery assembly integrated in the refrigerant sensor, or the power module includes a power supply line independent of the communication connection assembly.

[0016] The communication connection assembly and refrigerant sensor of the sensor provided by the utility model can be conveniently disassembled and replaced. The design ensures the detachable connection between the communication module and the communication cable through the cooperation of the socket part and the plug slot with the plug part and the plug hole of the communication cable, effectively solving the problems of the inconvenient disassembly and assembly of the refrigerant sensor and the difficulty in adjusting the length of the communication line in the prior art, reducing maintenance costs, taking into account both signal strength and aesthetic requirements, and improving the overall communication quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a structural schematic diagram of the communication connection component of the sensor and the refrigerant sensor provided by the utility model.

[0019] Figure 2 It is a side structural schematic diagram of the refrigerant sensor provided by the utility model.

[0020] Figure 3 It is a partial enlarged structural schematic diagram of the socket part of the communication connection component of the sensor provided by the utility model.

[0021] Figure 4 It is a schematic cross-sectional structural diagram of the socket portion of the communication connection component of the sensor.

[0022] Reference numerals:

[0023] 100. Shell; 110. Socket part; 111. Plug slot; 112. Pin; 113. Step structure; 114. Guide ridge; 115. Chamfer structure; 116. Limiting protrusion; 120. Communication cable; 121. Plug part; 122. Socket; 123. Sealing ring; 124. Annular protrusion; 125. Guide slot; 126. Snap buckle; 127. Locking slot; 128. Elastic arm. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. It should also be noted that in the description of the present utility model, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0026] Combine the following Figure 1-Figure 4 The specific implementation manner of the communication connection component of the sensor and the refrigerant sensor of the utility model is described.

[0027] like Figure 1 and Figure 2 As shown, the utility model provides a communication connection assembly of a sensor, comprising: a socket part 110, which is arranged on the housing 100 of the refrigerant sensor, the socket part 110 is provided with a plug slot 111 open to the outside, and a plug pin 112 connected to the communication module of the refrigerant sensor is arranged in the plug slot 111; a communication cable 120, the end of the communication cable 120 is provided with a plug part 121 adapted to the shape of the plug slot 111, and the plug part 121 is provided with a jack 122 corresponding to the pin 112; in the connected state of the communication connection assembly, the plug part 121 of the communication cable 120 is plugged and matched with the plug slot 111 of the socket part 110, and the pin 112 is plugged and matched with the jack 122, so that the communication module is connected to the communication cable 120. Through the matching of the socket part 110 and the plug slot 111 with the plug part 121 of the communication cable 120 and its jack 122, the detachable connection between the communication module and the communication cable 120 is realized.

[0028] Specifically, the socket part 110 is arranged on the refrigerant sensor housing 100, and has a plug slot 111 open to the outside. The plug slot 111 is provided with pins 112, which are directly connected to the communication module in the refrigerant sensor. The function of the socket part 110 is to provide a physical interface for the communication cable 120 so as to realize the communication connection between the communication module and the external line. The communication cable 120 is used to transmit data, and one end of the communication cable 120 is provided with a plug part 121, and the shape of the plug part 121 matches the plug slot 111 of the socket part 110. The end of the plug part 121 is provided with a jack 122, and the position and number of the jack 122 correspond to the pins 112 in the socket part 110, ensuring that the two can be accurately connected. When the communication connection assembly is in a connected state, the plug portion 121 of the communication cable 120 is inserted into the plug slot 111 of the socket portion 110 on the refrigerant sensor housing 100, and the plug hole 122 of the plug portion 121 is precisely aligned with the pin 112 of the socket portion 110 to form a plug-in fit.

[0029] Through the above communication connection assembly, the disassembly and replacement of the communication cable 120 is relatively simple and quick, and can be completed without complex tools or professional knowledge. It is also convenient for maintenance personnel to quickly diagnose and repair faults, reducing maintenance costs. In addition, this connection method of independently setting plug-in communication connections also allows the length of the communication cable 120 to be flexibly adjusted, improving the adaptability of the installation and the overall performance of the system.

[0030] According to a communication connection assembly of a sensor of the utility model, the plug part 121 of the communication cable 120 is further refined to enhance the reliability and environmental adaptability of the connection. The plug part 121 preferably includes a wiring terminal and an insertion terminal; the wiring terminal is connected to the communication cable 120, and the jack 122 is arranged at the insertion terminal; a sealing ring 123 is arranged between the wiring terminal and the insertion terminal; in the connected state, the sealing ring 123 is sealed and matched with the plug slot 111.

[0031] Specifically, in order to improve the protection level of waterproof and dustproof, a sealing ring 123 is provided between the wiring terminal and the insertion end. When the plug part 121 is plugged into the socket part 110, the sealing ring 123 will be in close contact with the plug slot 111 of the socket part 110 to form a sealed fit. This sealing design can effectively prevent the influence of external factors such as water vapor and dust on the communication connection, ensuring that the communication connection can maintain good stability and reliability even in harsh environments.

[0032] For better sealing performance, it is preferred to set a multiple sealing structure. According to a communication connection assembly of a sensor of the utility model, multiple sealing rings 123 are evenly distributed in the length direction of the plug part 121. When the plug part 121 is matched with the plug slot 111 of the socket part 110, the multiple sealing rings 123 will form multiple sealing barriers at different positions, significantly improving the waterproof and dustproof capabilities.

[0033] Or in another embodiment, the sealing ring 123 has a progressive layered structure, and in the length direction of the plug part 121, the sealing ring 123 is provided with a plurality of annular protrusions 124 for sealingly cooperating with the plug slot 111. The sealing ring 123 itself has a plurality of annular protrusions 124, and these protrusions are arranged along the length direction of the plug part 121. Each annular protrusion 124 can form an independent sealing cooperation with the inner wall of the plug slot 111, which is similar to the effect of multiple sealing rings 123, but is achieved by a single sealing ring 123, reducing the number of components and simplifying the assembly process.

[0034] In order to enhance the stability between the plug portion 121 and the socket portion 110, as shown in FIG. Figure 2 , Figure 3 and Figure 4 As shown, according to a communication connection assembly of a sensor of the utility model, a stepped structure 113 is formed on the inner side wall of the plug slot 111. In the connected state, the insertion end is inserted between the stepped structures 113, and the stepped structure 113 stops at one side of the sealing ring 123. When the plug part 121 and the socket part 110 form a connected state, the insertion end of the plug part 121 can be accurately embedded between these stepped structures 113. When the insertion end is fully inserted, one side of the stepped structure 113 will be in close contact with the sealing ring 123, forming a physical stop, thereby ensuring that the plug part 121 will not go too deep.

[0035] In order to improve the accuracy and convenience of the connection between the plug part 121 and the socket part 110, according to a communication connection component of a sensor of the utility model, the inner surface of at least one side of the step structure 113 is provided with a guide ridge 114; the insertion end is provided with a guide slot 125 adapted to the guide ridge 114. The cooperation between the guide ridge 114 and the guide slot 125 can help automatically calibrate the position of the pin 112 and the socket 122 during the insertion of the plug part 121 into the socket part 110, ensuring that the two can be accurately docked. Moreover, the specific shape and position relationship between the guide ridge 114 and the guide slot 125 can also assist the operator in determining the correct insertion direction of the plug part 121. In actual operation, only when the plug part 121 is inserted at the correct angle and direction, the guide slot 125 can slide smoothly along the guide ridge 114, thereby avoiding the situation of reverse or wrong direction insertion, simplifying the installation steps, and reducing the difficulty of maintenance.

[0036] like Figure 3 and Figure 4 As shown, according to a communication connection assembly of a sensor of the present invention, a chamfered structure 115 is provided at the open end of the plug slot 111, and the chamfered structure 115 forms a wide-angle shape at the open end of the plug slot 111. The chamfered structure 115 at the open end of the plug slot 111 not only simplifies the installation process of the plug part 121 and improves the convenience and efficiency of the operation, but also reduces the potential risks of the sealing ring 123 during the docking process, thereby enhancing the overall performance and reliability of the communication connection assembly.

[0037] Specifically, the sealing ring 123 needs to form a tight fit with the inner wall of the plug slot 111 to achieve the best sealing effect. The guiding effect of the chamfered structure 115 ensures that the sealing ring 123 can easily enter the sealing area of ​​the plug slot 111 when the plug part 121 is inserted. In addition, since the sealing ring 123 is usually made of a material with a certain elasticity, the friction during the insertion process may cause unnecessary pressure or damage to it, thereby affecting the integrity and sealing performance of the sealing ring 123. The chamfered structure 115 reduces the friction resistance of the sealing ring 123 during the installation process through its smooth transition surface, protecting the sealing ring 123 from damage. The wide-angle transition surface formed by the chamfered structure 115 at the open end of the plug slot 111 can be a wedge-shaped surface or an arc-shaped surface as shown in the figure.

[0038] like Figure 1 and Figure 4 As shown, according to a communication connection assembly of a sensor of the present invention, the socket part 110 is provided with a limiting protrusion 116, and the plug part 121 is provided with a buckle 126, and the buckle 126 has a locking groove 127 adapted to the limiting protrusion 116. In the connected state, the locking groove 127 of the buckle 126 forms a limiting fit with the limiting protrusion 116, thereby ensuring the stability of the connection and preventing the plug part 121 from being loosened due to external forces (such as vibration or accidental collision). The limiting fit ensures the stability of the connection. When disassembly is required, the operator only needs to apply appropriate force to release the buckle 126 to easily separate the plug part 121 from the socket part 110.

[0039] In the above structure, the limiting protrusion 116 can be arranged on the inner side wall of the plug slot 111 of the socket part 110, and when the plug part 121 is inserted into the plug slot 111, the buckle 126 will enter the plug slot 111 together with the plug part 121. During the connection process, the locking groove 127 on the buckle 126 is naturally aligned with the limiting protrusion 116 and forms a limiting fit, ensuring that the plug part 121 and the socket part 110 are firmly combined.

[0040] According to a preferred communication connection assembly of a sensor of the utility model, the buckle 126 can be connected to the plug part 121 through the elastic arm 128, and the limiting protrusion 116 is arranged on the outer surface of the socket part 110. In the connected state, the buckle 126 forms a limiting fit with the limiting protrusion 116 on the outer side of the socket part 110. Specifically, when the plug part 121 is inserted into the socket part 110, the buckle 126 can be temporarily deformed due to the elastic characteristics of the elastic arm 128 until the plug part 121 is fully in place. At this time, the buckle 126 forms a limiting fit with the limiting protrusion 116 on the outer side of the socket part 110, the elastic arm 128 returns to its original state, and the locking groove 127 of the buckle 126 is in close contact with the limiting protrusion 116, thereby locking the position of the plug part 121.

[0041] Preferably, limiting baffles may be provided on both sides of the limiting protrusion 116 to assist the locking groove 127 of the buckle 126 to align with the limiting protrusion 116 and prevent the buckle 126 from shaking. In addition, a ramp structure is preferably provided on the outer side of the limiting protrusion 116 so that the buckle 126 can be automatically lifted along the ramp structure during the insertion process of the plug part 121.

[0042] The refrigerant sensor provided by the present invention is described below. The refrigerant sensor described below and the communication connection assembly of the sensor described above can be referenced to each other.

[0043] The utility model also provides a refrigerant sensor, which is provided with a communication connection component of the sensor of any of the above embodiments. Preferably, a socket portion 110 is provided on the housing 100 of the refrigerant sensor, and the socket portion 110 has a plug slot 111 open to the outside, and is internally equipped with a pin 112 connected to the sensor communication module, providing a stable basis for the connection of the communication cable 120. A plug portion 121 matching the plug slot 111 of the socket portion 110 is designed at one end of the communication cable 120, and the plug portion 121 contains a jack 122 corresponding to the pin 112 of the socket portion 110, ensuring the accuracy and stability of the electrical connection. At the connection between the plug portion 121 and the socket portion 110, a sealing ring 123 with a progressive layered sealing structure is adopted to effectively prevent interference from external factors such as moisture and dust, and ensure the environmental adaptability of the connection component and the continuity of signal transmission. According to the cooperation between the guide ridge 114 and the guide groove 125 as well as the locking design of the limiting protrusion 116 and the buckle 126 as described above, not only the connection process is simplified and the assembly accuracy is improved, but also the firmness of the connection is ensured, avoiding loose connection due to external vibration or impact.

[0044] According to a refrigerant sensor of the utility model, a power module is provided; the power module includes a battery assembly integrated in the refrigerant sensor, or the power module includes a power supply line independent of the communication connection assembly. Specifically, in one embodiment, the power module includes a battery assembly integrated in the refrigerant sensor. This design means that the sensor itself carries a power supply and does not require external power supply, making the deployment of the sensor more flexible and not restricted by the location of the power supply. The battery assembly is preferably a 5V power module. In another embodiment, the power module includes a power supply line independent of the communication connection assembly. The separate power supply method avoids possible interference caused by the integration of the power supply line and the communication line, such as the influence of voltage fluctuations or electromagnetic interference on signal transmission. Independent power supply makes the length selection of the communication cable 120 more free and not constrained by power supply requirements, thereby optimizing the installation layout, reducing signal attenuation, and improving communication quality.

[0045] Through the above implementation, the refrigerant sensor of the utility model not only provides diversity in power supply mode, but also solves the limitations of power supply and communication integration in traditional sensors. Whether it is a self-sufficient mode with a built-in battery component or a separate power supply through an independent power supply line, it can ensure that the performance of the communication connection component is not affected by power supply factors, providing users with a more stable, efficient and adaptable sensor solution.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "mode", "specific mode", or "some modes" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or mode are included in at least one embodiment or mode of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or mode. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or modes in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or modes described in this specification and the features of the different embodiments or modes, without contradiction.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A communication connection component of a sensor, characterized in that: include: A socket portion (110) is arranged on the housing (100) of the refrigerant sensor, the socket portion (110) being provided with a plug slot (111) open toward the outside, and a plug pin (112) connected to a communication module of the refrigerant sensor being arranged in the plug slot (111); A communication cable (120), wherein the end of the communication cable (120) is provided with a plug portion (121) adapted to the shape of the plug slot (111), and the plug portion (121) is provided with a socket (122) corresponding to the plug pin (112); When the communication connection assembly is in a connected state, the plug portion (121) of the communication cable (120) is plugged into and matched with the plug slot (111) of the socket portion (110), and the plug pin (112) is plugged into and matched with the plug hole (122), so that the communication module is connected to the communication cable (120).

2. The communication connection assembly of the sensor according to claim 1, characterized in that: The plug part (121) comprises a connection terminal and an insertion terminal; The connection terminal is connected to the communication cable (120), and the jack (122) is arranged at the insertion end; A sealing ring (123) is provided between the wiring terminal and the insertion end; In the connected state, the sealing ring (123) is in sealing cooperation with the plug-in slot (111).

3. The communication connection assembly of the sensor according to claim 2, characterized in that: A plurality of sealing rings (123) are evenly distributed along the length direction of the plug portion (121); Alternatively, the sealing ring (123) has a progressive layered structure, and in the length direction of the plug portion (121), the sealing ring (123) is provided with a plurality of annular protrusions (124) for sealingly cooperating with the plug slot (111).

4. The communication connection assembly of the sensor according to claim 2, characterized in that: The inner side wall of the plug-in slot (111) is formed with a stepped structure (113); In the connected state, the insertion end is inserted between the step structures (113), and the step structure (113) is stopped at one side of the sealing ring (123).

5. The communication connection assembly of the sensor according to claim 4, characterized in that: The inner surface of at least one side of the stepped structure (113) is provided with a guide ridge (114); The insertion end is provided with a guide groove (125) adapted to the guide ridge (114).

6. The communication connection assembly of the sensor according to claim 4, characterized in that: The opening end of the plugging slot (111) is provided with a chamfered structure (115), and the chamfered structure (115) forms a wide-angle shape at the opening end of the plugging slot (111).

7. The communication connection assembly of the sensor according to any one of claims 1 to 6, characterized in that: The socket portion (110) is provided with a limiting protrusion (116), and the plug portion (121) is provided with a pressing buckle (126), and the pressing buckle (126) has a locking groove (127) adapted to the limiting protrusion (116); In the connected state, the locking groove (127) of the buckle (126) forms a limiting fit with the limiting protrusion (116).

8. The communication connection assembly of the sensor according to claim 7, characterized in that: The pressing buckle (126) is connected to the plug portion (121) via an elastic arm (128), and the limiting protrusion (116) is arranged on the outer surface of the socket portion (110); In the connected state, the buckle (126) forms a limiting fit with the limiting protrusion (116) on the outer side of the socket portion (110).

9. A refrigerant sensor, characterized in that: A communication connection component of the sensor according to any one of claims 1 to 8 is provided.

10. The refrigerant sensor according to claim 9, characterized in that: A power supply module is provided; The power module includes a battery assembly integrated in the refrigerant sensor, or the power module includes a power supply circuit independent of the communication connection assembly.