Detection device and compressor

Abstract

The application provides a detection device and a compressor. The detection device comprises a shell and a detection assembly. The shell comprises a liquid level cabin and an insulation cabin. The detection assembly is arranged in the liquid level cabin. The detection assembly comprises a triggering part and a conducting part which is connected to the top of the triggering part in an isolated manner. The triggering part is communicated with the liquid level cabin. One end of the conducting part is electrically connected with a display device. The conducting part is communicated with the insulation cabin and is filled with insulation liquid. Liquid refrigerant enters the liquid level cabin. The triggering part is triggered and the circuit of the conducting part is conducted. Thus, the liquid level information is fed back to the display device. The liquid level cabin and the insulation cabin are arranged. The detection assembly is arranged in the liquid level cabin. The detection assembly comprises the triggering part and the conducting part. The circuit of the conducting part is conducted through the triggering part to feed back the liquid level information to the display device outside. Thus, the liquid level height in the compressor can be detected in real time in a high-temperature and high-pressure environment. The detection is convenient. The detection device has a simple and reliable structure and high anti-interference performance.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, and in particular to a detection device and a compressor. Background Technology

[0002] With the trend towards miniaturization and higher power requirements in compressors, the size of compressors for the same cooling capacity is decreasing, while the amount of refrigerant and refrigeration oil remains the same or increases, causing the liquid level inside the compressor to rise continuously. This rise in liquid level leads to the compressor motor coming into contact with the refrigerant. Liquid refrigerant has strong conductivity, which affects the insulation resistance of the motor. As contact with motor components increases, the leakage current increases significantly, exceeding the standard value, placing higher demands on the motor's insulation withstand voltage. Therefore, detecting the liquid level inside the compressor is essential during the development and design phase. However, the compressor interior is a closed, high-pressure, high-temperature environment with high-pressure gas flow, making the internal environment quite harsh. Ordinary liquid level sensors are not suitable for use inside compressors. Summary of the Invention

[0003] The embodiments of the present invention provide a detection device and a compressor to achieve real-time detection and feedback of the liquid level inside the compressor, with a simple and reliable structure.

[0004] This invention provides a detection device, comprising:

[0005] The outer shell includes a liquid level chamber and an insulation chamber;

[0006] A detection component is provided inside the liquid level tank. The detection component includes a trigger part and a conductive part that is isolated and connected to the upper part of the trigger part. The trigger part is connected to the liquid level tank. One end of the conductive part is electrically connected to a display device. The conductive part is connected to the insulating tank and both are filled with insulating liquid.

[0007] When liquid refrigerant enters the liquid level chamber, the triggering unit is activated and the circuit of the conductive unit is connected, thereby feeding back liquid level information to the display device.

[0008] In the detection device provided by the present invention, the triggering part includes a base, the base includes a lower through hole and a side through hole, the lower through hole is located below the side through hole and both are in communication with the liquid level tank.

[0009] In the detection device provided by the present invention, the outer shell further includes a fixing hole that connects the liquid level chamber and the insulating chamber; the conductive part includes an upper cover that is fixedly connected to the base, the upper cover includes an outward protrusion that is embedded in the fixing hole and connects the interior of the insulating chamber and the upper cover.

[0010] In the detection device provided by the present invention, the triggering part further includes a float located inside the base; the conducting part further includes a conductive element fixed inside the upper cover; wherein, the liquid refrigerant causes the float to float so that the float conducts the circuit of the conductive element.

[0011] In the detection device provided by the present invention, the conductive element includes an upper contact and a lower contact located below the upper contact, the upper contact and the lower contact extending toward each other; wherein, the float rises to connect the upper contact and the lower contact.

[0012] In the detection device provided by the present invention, the detection component further includes an insulating diaphragm, which is fixed to the upper end of the base along the circumference of the base to isolate the base from the upper cover.

[0013] In the detection device provided by the present invention, the upper cover includes an insulating cavity, which is formed by an inward recess on the side of the upper cover that is connected to the base, and the insulating cavity has a hemispherical structure.

[0014] In the detection device provided by the present invention, the outer shell further includes a sealing liquid pipe communicating with the insulating chamber, one end of the sealing liquid pipe being connected to the insulating chamber and the other end being communicating with the inside of the compressor; wherein, the insulating liquid flows from the conductive part to the insulating chamber and is discharged to the sealing liquid pipe.

[0015] In the detection device provided by the present invention, there are multiple detection components, and the multiple detection components are spaced apart in the liquid level tank along the height direction of the liquid level tank.

[0016] The present invention also provides a compressor comprising:

[0017] case;

[0018] A detection device, wherein the detection device is any of the detection devices described above, and the detection device is fixed inside the housing.

[0019] This invention provides a detection device and a compressor. The detection device includes a housing and a detection component. The housing includes a liquid level chamber and an insulating chamber. The detection component is disposed inside the liquid level chamber and includes a trigger part and a conductive part that is isolated and connected to the upper part of the trigger part. The trigger part is connected to the liquid level chamber, and one end of the conductive part is electrically connected to a display device. The conductive part is connected to the insulating chamber and both are filled with insulating liquid. When liquid refrigerant enters the liquid level chamber, the trigger part is triggered and the circuit of the conductive part is connected, thereby feeding back liquid level information to the display device. This application provides a liquid level chamber and an insulation chamber within the outer casing, and a detection component within the liquid level chamber. The liquid level chamber is connected to the interior of the compressor. The detection component includes a triggering part and a conductive part. The triggering part is connected to the liquid level chamber to detect the refrigerant level, and the conductive part is used to feed the liquid level information back to the outside. The liquid refrigerant triggers the triggering part to open the circuit of the conductive part, thereby feeding the liquid level information back to an external display device. This enables real-time detection and feedback of the liquid level inside the compressor in a high-temperature and high-pressure environment. The detection is convenient, and the detection device has a simple and reliable structure with high anti-interference capabilities. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a cross-sectional view of the detection device in an embodiment of the present invention;

[0022] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0023] Figure 3 This is a structural diagram of the outer shell in an embodiment of the present invention;

[0024] Figure 4 This is a cross-sectional view of the outer casing in an embodiment of the present invention;

[0025] Figure 5 This is another structural diagram of the outer casing in an embodiment of the present invention;

[0026] Figure 6 This is a structural diagram of the detection component in an embodiment of the present invention;

[0027] Figure 7 This is another structural diagram of the detection component in an embodiment of the present invention;

[0028] Figure 8 This is a structural diagram of the base in an embodiment of the present invention;

[0029] Figure 9 This is a structural diagram of the upper cover in an embodiment of the present invention;

[0030] Figure 10 This is a structural diagram of the compressor in an embodiment of the present invention;

[0031] Figure 11 This is a circuit diagram of the detection device in an embodiment of the present invention;

[0032] The labels for the attached figures are as follows:

[0033] 10. Detection device; 100. Housing; 110. Liquid level chamber; 120. Insulation chamber; 130. Fixing hole; 140. Sealing pipe; 150. Fixing plate; 200. Detection assembly; 210. Trigger; 211. Base; 2111. Lower through hole; 2112. Side through hole; 212. Float; 220. Conducting part; 221. Top cover; 2211. Outer protrusion; 2212. Insulation cavity; 222. Upper contact piece; 223. Lower contact piece; 230. Insulating diaphragm; 20. Compressor; 300. Housing. Detailed Implementation

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0035] Reference Figures 1 to 10 The diagram illustrates an embodiment of the detection device 10 and compressor 20 of the present invention. The detection device 10 includes a housing 100 and a detection component 200. The housing 100 includes a liquid level chamber 110 and an insulating chamber 120. The detection component 200 is disposed inside the liquid level chamber 110 and includes a trigger part 210 and a conductive part 220 connected and isolated above the trigger part 210. The trigger part 210 communicates with the liquid level chamber 110, and one end of the conductive part 220 is electrically connected to a display device. The conductive part 220 communicates with the insulating chamber 120 and is filled with insulating liquid. When liquid refrigerant enters the liquid level chamber 110, the trigger part 210 is triggered, and the circuit of the conductive part 220 is opened, thereby feeding back liquid level information to the display device.

[0036] Specifically, the detection device 10 is used to detect the liquid level of the liquid refrigerant inside the compressor 20. The detection device 10 includes a housing 100 and a detection component 200. The detection component 200 is fixed inside the housing 100. The housing 100 includes a liquid level chamber 110 and an insulation chamber 120. The liquid level chamber 110 is in communication with the interior of the compressor 20, so that the liquid refrigerant can be poured into the liquid level chamber 110 to keep the liquid level inside the liquid level chamber 110 consistent with the liquid level inside the compressor 20. The liquid level chamber 110 is used to fix the detection component 200, so that the detection component 200 can detect the liquid level inside the compressor 20 based on the liquid level of the liquid refrigerant inside the liquid level chamber 110. The insulation chamber 120 is filled with insulating liquid. In this embodiment, the insulating liquid is refrigeration oil to keep the insulation chamber 120 in an insulating state. The liquid level chamber 110 and the insulation chamber 120 are two non-conductive chambers, which can effectively reduce interference from the external environment.

[0037] The detection component 200 includes a triggering part 210 and a conducting part 220. The triggering part 210 is used to detect the liquid level of the refrigerant inside the compressor 20. The conducting part 220 is used to feed back the liquid level information from the triggering part 210 to a display device outside the compressor 20. The liquid level information indicates whether the liquid level of the refrigerant inside the compressor 20 reaches the height of the detection component 200. The conducting part 220 is located above the triggering part 210 and is isolated from the triggering part 210, i.e., the conducting part 220 is not connected to the triggering part 210. The triggering part 210 is connected to the liquid level chamber 110, allowing the liquid refrigerant to enter the triggering part 210 so that the liquid level of the refrigerant inside the triggering part 210 is consistent with the liquid level inside the compressor 20, thus realizing the detection of the liquid level of the refrigerant inside the compressor 20. One side of the conducting part 220... The terminal is electrically connected to a display device, which can be a multimeter. The conductive part 220 can then feed back liquid level information to the display device. The conductive part 220 can also feed back the result of whether it is conductive to the display device. If the display device shows conductivity, it indicates that the conductive part 220 is conductive, meaning the liquid refrigerant level inside the compressor 20 has reached the height of the detection component 200. If the display device shows no conductivity, it indicates that the conductive part 220 is de-energized, meaning the liquid refrigerant level inside the compressor 20 has not reached the height of the detection component 200. The conductive part 220 is connected to the insulating chamber 120 and both are filled with insulating liquid to prevent the liquid refrigerant from entering the conductive part 220 and causing it to become conductive. Connecting the conductive part 220 and the insulating chamber 120 and filling both with insulating liquid improves the anti-interference capability of the detection component 200.

[0038] When the liquid refrigerant inside the compressor 20 enters the liquid level chamber 110, the refrigerant enters the triggering part 210, thereby triggering the triggering part 210. The triggering part 210 squeezes the insulating liquid in the conducting part 220 into the insulating chamber 120. At the same time, the triggering part 210 opens the circuit of the conducting part 220, so that the conducting part 220 feeds back the liquid level information to the display device, thereby realizing real-time detection and feedback of the liquid refrigerant level inside the compressor 20.

[0039] This application provides a liquid level chamber 110 and an insulation chamber 120 within the outer casing 100. A detection component 200 is installed within the liquid level chamber 110, which is connected to the interior of the compressor 20. The detection component 200 includes a trigger part 210 and a conductive part 220. The trigger part 210 is connected to the liquid level chamber 110 to detect the refrigerant level. The conductive part 220 is used to feed back the liquid level information to the outside. The trigger part 210 connects the circuit of the conductive part 220 to feed back the liquid level information to an external display device. This allows for real-time detection and feedback of the liquid level inside the compressor 20 in a high-temperature, high-pressure environment. The detection is convenient, and the detection device 10 has a simple and reliable structure with high anti-interference capabilities.

[0040] Specifically, the liquid refrigerant inside the compressor 20 enters the liquid level chamber 110 from the lower end, thereby reducing the fluctuation of the liquid level caused by the airflow inside the compressor 20; and the bottom of the insulating chamber 120 is sealed, while the upper end is in unidirectional communication with the inside of the compressor 20, thereby improving the anti-interference capability of the detection device 10.

[0041] In one embodiment, reference is made to Figures 6 to 8 As shown, the triggering part 210 includes a base 211, the base 211 includes a lower through hole 2111 and a side through hole 2112, the lower through hole 2111 is located below the side through hole 2112, and both are connected to the liquid level tank 110. Specifically, the triggering part 210 is connected to the liquid level tank 110, meaning that the liquid refrigerant can enter the triggering part 210 from the liquid level tank 110. The triggering part 210 includes a base 211, the interior of which is a hollow structure used to house the structural components of the triggering part 210. The bottom wall and side wall of the base 211 are provided with a lower through hole 2111 and a side through hole 2112, the side through hole 2112 being located above the lower through hole 2111. The liquid refrigerant enters the interior of the base 211 through the lower through hole 2111, and the air inside the base 211 is discharged through the side through hole 2112, thereby improving the anti-interference capability of the base 211. At the same time, the structure of the base 211 is simple. The base 211 is connected to the liquid level tank 110, thus serving as a liquid level detection device.

[0042] In a specific embodiment, refer to Figures 1 to 2 , Figure 4 , Figures 6 to 9As shown, the outer casing 100 also includes a fixing hole 130 that connects the liquid level chamber 110 and the insulation chamber 120; the conductive part 220 includes an upper cover 221 that is fixedly connected to the base 211, the upper cover 221 includes an outward protrusion 2211, the outward protrusion 2211 is embedded in the fixing hole 130 and connects the interior of the insulation chamber 120 and the upper cover 221. Specifically, the detection component 200 is fixedly disposed within the liquid level chamber 110. In this embodiment, the liquid level chamber 110 and the insulating chamber 120 are arranged adjacent to each other, and a fixing hole 130 is provided between the liquid level chamber 110 and the insulating chamber 120, the fixing hole 130 connecting the liquid level chamber 110 and the insulating chamber 120; the conductive part 220 includes an upper cover 221, the upper cover 221 is fixedly connected to the base 211 and located above the base 211, the base 211 and the upper cover 221 are isolated from each other, that is, the base 211 and the upper cover 221 are not connected, thereby isolating the liquid refrigerant and the insulating liquid; the upper cover 221 is provided with an outward protrusion 2211, the outward protrusion 2211 is formed by one side wall of the upper cover 221 protruding outward, the outward protrusion 2211 and the fixed part 2211 are connected to the base 211 and the insulating chamber 120. The upper cover 221 is fitted into the fixing hole 130, and the protrusion 2211 is embedded in the fixing hole 130 to fix the upper cover 221 in the liquid level tank 110, thereby fixing the detection component 200 in the liquid level tank 110. The protrusion 2211 also communicates with the insulating tank 120, so that the interior of the upper cover 221 is connected to the insulating tank 120 through the protrusion 2211. When the interior of the upper cover 221 and the insulating tank 120 are filled with insulating liquid, the trigger part 210 squeezes the interior space of the upper cover 221, so that the insulating liquid inside the upper cover 221 is discharged towards the insulating tank 120, realizing the conduction of the structural components inside the upper cover 221 and playing a role in liquid level data feedback. The upper cover 221 has a simple and reliable structure, and the steps of installing the detection component 200 into the liquid level tank 110 are simple and convenient.

[0043] Specifically, both the base 211 and the upper cover 221 are cylindrical structures. The upper end of the base 211 is provided with a stepped ring to be embedded and connected with the bottom recess of the upper cover 221. The upper cover 221 and the base 211 are sealed with adhesive to improve the connection and fixation between the base 211 and the upper cover 221. At the same time, the outer protrusion 2211 of the upper cover 221 is provided with a connecting hole that connects the interior of the upper cover 221 and the insulating chamber 120. After the outer protrusion 2211 is embedded in the fixing hole 130, the outer protrusion 2211 and the fixing hole 130 are sealed with adhesive to improve the fixation between the upper cover 221 and the fixing hole 130 and prevent the liquid refrigerant in the liquid level chamber 110 from flowing into the insulating chamber 120 through the fixing hole 130. This improves the structural stability of the detection device 10 and enhances its anti-interference capability.

[0044] In one embodiment, reference is made to Figures 1 to 2 As shown, the triggering part 210 further includes a float 212 located inside the base 211; the conducting part 220 further includes a conductive element fixed inside the upper cover 221; wherein, the liquid refrigerant causes the float 212 to float so that the float 212 conducts the circuit of the conductive element. Specifically, when the liquid refrigerant enters the liquid level chamber 110, it enters the base 211 through the lower through-hole 2111. A float 212 is installed inside the base 211. As the liquid level of the refrigerant inside the base 211 rises, the float 212 rises accordingly. A conductive element is installed inside the upper cover 221. Initially, the conductive element is not conductive. When the float 212 rises to the inside of the upper cover 221, the insulating liquid inside the upper cover 221 is squeezed into the insulating chamber 120, thus making the space inside the upper cover 221 non-insulated. The float 212 can connect the conductive element's circuit when it rises to the position of the conductive element inside the upper cover 221, thereby feeding back the liquid level of the refrigerant inside the compressor 20 to the display device outside the compressor 20.

[0045] In this embodiment, the float 212 is set to rise as the liquid level of the liquid refrigerant rises. The float 212 squeezes the insulating liquid inside the upper cover 221 and conducts the circuit of the conductive component, so as to realize the real-time detection of the liquid level of the liquid refrigerant inside the compressor 20. This structure is simple and has low production cost.

[0046] In a specific embodiment, refer to Figures 1 to 2As shown, the conductive element includes an upper contact 222 and a lower contact 223 located below the upper contact 222, with the upper contact 222 and the lower contact 223 extending toward each other; wherein, the float 212 rises to connect the upper contact 222 and the lower contact 223 to conduct electricity. Specifically, the conductive element is used to feed back liquid level information to the external display device. The conductive element is fixed inside the upper cover 221. The conductive element includes an upper contact 222 and a lower contact 223. The upper contact 222 is located above the lower contact 223, and the upper contact 222 and the lower contact 223 are respectively located on both sides inside the upper cover 221. One end of the upper contact 222 is fixedly connected to one side of the inner wall of the upper cover 221, and the other end extends toward the center inside the upper cover 221. One end of the lower contact 223 is fixedly connected to the other side of the inner wall of the upper cover 221, and the other end extends toward the center inside the upper cover 221. That is, the upper contact 222 and the lower contact 223 extend towards each other, and the other end of the lower contact 223 is located below the other end of the upper contact 222. Therefore, when the float 212 moves with the liquid level... As the liquid refrigerant level rises, the float 212 moves toward the upper cover 221. When the float 212 floats to the inside of the upper cover 221, it squeezes the insulating liquid inside the upper cover 221 into the insulating chamber 120, so that the inside of the upper cover 221 is not in an insulating state. When the float 212 continues to float to the position of the conductive element, the float 212 touches the lower contact 223 and squeezes the other end of the lower contact 223 toward the upper contact 222 until the lower contact 223 and the upper contact 222 are connected and conductive, thereby making the circuit of the conductive element conductive and feeding back the liquid level information to the display device outside the compressor 20. The display device shows that the detection device 10 is in a conductive state, so as to determine that the liquid refrigerant level inside the compressor 20 has reached the position of the detection device 10.

[0047] The conductive component has a simple structure and low production cost. The upper contact 222 and the lower contact 223 are lightweight, which facilitates the float 212 to push the lower contact 223 toward the upper contact 222, thereby ensuring the detection accuracy of the detection device 10.

[0048] Specifically, the upper cover 221 has openings on both the left and right sides, which connect the outside and inside of the upper cover 221. The upper contact piece 222 and the lower contact piece 223 are respectively inserted into the inside of the upper cover 221 through the openings, and seal and fix the upper contact piece 222 and the opening, and the lower contact piece 223 and the opening, so as to fix the upper contact piece 222 and the lower contact piece 223 on both sides inside the upper cover 221 and prevent the upper cover 221 from communicating with the liquid level tank 110.

[0049] At the same time, refer to Figure 11 As shown, a wire is led out from the side of the upper contact 222 and the lower contact 223 located outside the upper cover 221. One of the wires is connected in parallel with one of the wires of the other detection component 200 as a common terminal, and the other wire is connected to a separate port. When the lower contact 223 is connected to the upper contact 222, a multimeter is used outside the compressor 20 to check the continuity of the circuit of the detection component 200. An open circuit indicates that the liquid level has not yet reached the height of the detection component 200, and a closed circuit indicates that the liquid level has reached the height of the detection component 200. The detection circuit of the detection component 200 has a simple and reliable structure and is not affected by the high temperature, high pressure and strong magnetic field conditions inside the compressor 20, thus making the detection device 10 highly resistant to interference.

[0050] In a specific embodiment, refer to Figures 1 to 2As shown, the detection component 200 further includes an insulating diaphragm 230, which is fixed circumferentially to the upper end of the base 211 to isolate the base 211 from the upper cover 221. Specifically, the liquid refrigerant is conductive. To enable the conductive part 220 to accurately reflect the liquid level inside the compressor 20, the trigger part 210 and the conductive part 220 need to be isolated from each other. The base 211 is fixedly connected to the upper cover 221 and communicates with the liquid level chamber 110. The liquid refrigerant flowing into the liquid level chamber 110 enters the interior of the base 211, causing the float 212 to rise as the liquid level of the refrigerant rises. The upper cover 221 communicates with the insulating chamber 120, and the upper cover 221 and the insulating chamber... 120 is filled with the insulating liquid to keep the conductive parts in an insulating state. To prevent the liquid refrigerant inside the base 211 from entering the interior of the top cover 221, an insulating diaphragm 230 is fixed at the top of the base 211. The insulating diaphragm 230 has the function of insulating and isolating the base 211 and the top cover 221. The insulating diaphragm 230 is fixed at the top of the base 211 along the circumference of the base 211 and isolates and seals the base 211 and the top cover 221, thereby ensuring the conductivity of the conductive part 220 and improving the structural stability and anti-interference ability of the detection component 200.

[0051] Specifically, the insulating diaphragm 230 has a hemispherical structure, which allows the insulating diaphragm 230 to fit into the insulating cavity 2212, so that the float 212 can float into the insulating cavity 2212 and ensure the movement of the float 212.

[0052] In one embodiment, reference is made to Figures 1 to 2As shown, the upper cover 221 includes an insulating cavity 2212, which is formed by an inward recess on the side where the upper cover 221 is connected to the base 211. The insulating cavity 2212 has a hemispherical structure. Specifically, the upper cover 221 is fixedly connected to the base 211, and the upper cover 221 is located above the base 211. The insulating cavity 2212 is formed by a recess on the side where the upper cover 221 is connected to the base 211 towards the top of the upper cover 221. The insulating cavity 2212 is a structural component for housing the conductive part 220, that is, the conductive component is fixed in the insulating cavity 2212, and the insulating cavity 2212 is filled with insulating liquid to keep the insulating cavity 2212 in an insulating state. The insulating cavity 2212 is connected to the outward protrusion 2211, thereby allowing the insulating cavity 2212 to communicate with the insulating chamber 120, thus achieving the insulation. The insulating fluid can flow between the insulating cavity 2212 and the insulating chamber 120; the insulating cavity 2212 is set as a hemispherical structure, which facilitates the production of the upper cover 221 and improves the structural stability of the upper cover 221; at the same time, the float 212 inside the base 211 rises with the increase of the liquid level of the liquid refrigerant, and the float 212 can float into the insulating cavity 2212 of the upper cover 221. When the float 212 floats into the insulating cavity 2212, the structure of the insulating cavity 2212 is adapted to the structure of the float 212, thereby further improving the structural stability of the detection component 200 and ensuring that the float 212 can conduct the conductive element.

[0053] In a specific embodiment, refer to Figures 1 to 5As shown, the outer casing 100 also includes a sealing liquid pipe 140 communicating with the insulating chamber 120. One end of the sealing liquid pipe 140 is connected to the insulating chamber 120, and the other end is connected to the inside of the compressor 20. The insulating liquid flows from the conductive part 220 to the insulating chamber 120 and is discharged to the sealing liquid pipe 140. Specifically, the outer casing 100 includes the liquid level chamber 110 and the insulating chamber 120, which are two non-conductive chambers. One end of the insulating chamber 120 is connected to the conductive part 220, and the other end is connected to the sealing pipe 140. The sealing pipe 140 is located adjacent to the insulating chamber 120 on the other side relative to the liquid level chamber 110. The sealing pipe 140 is fixed to the upper end of the insulating chamber 120 and communicates with the interior of the compressor 20. The insulating chamber 120 is only connected to the conductive part 220 and the sealing pipe 140. The insulating chamber 120 is filled with insulating liquid to prevent the conductive part 220 from conducting electricity prematurely. When the float 212 of the trigger part 210 rises with the liquid level of the liquid refrigerant, the float 212 squeezes the insulating liquid in the insulating cavity 2212 of the conductive part 220. The insulating liquid in the conductive part 220 flows from the conductive part 220 to the insulating chamber 120, and from the insulating chamber 120 to the sealing pipe 140, thereby preventing excess insulating liquid from overflowing from the insulating chamber 120 and affecting the structure of the detection device 10 and the compressor 20, and improving the structural stability of the detection device 10.

[0054] Specifically, the sealing tube 140 has a "U" shaped structure and is connected to the top of the insulating chamber 120, thereby ensuring that the sealing tube 140 can hold more insulating liquid and further improving the structural stability of the detection device 10.

[0055] In one embodiment, reference is made to Figure 1 and Figure 10As shown, multiple detection components 200 are provided, and these multiple detection components 200 are spaced apart within the liquid level tank 110 along its height direction. Specifically, the outer shell 100 is elongated to adapt to the height of the compressor 20. The liquid level tank 110 and the insulation tank 120 are arranged adjacent to each other on both sides of the outer shell 100 along its height direction. Multiple detection components 200 can be arranged at different heights of the outer shell 100 according to different detection requirements. These multiple detection components 200 are spaced apart within the liquid level tank 110 along its height direction, thereby meeting the liquid level testing requirements at different heights under different detection conditions. When the liquid refrigerant level inside the compressor 20 reaches the designated position of the detection component 200, the detection component 200 is triggered to transmit the liquid level information to the outside of the compressor 20 via a wire.

[0056] Reference Figure 10 As shown, this embodiment also provides a compressor 20, which includes a housing 300 and a detection device 10. The detection device 10 can be any type of detection device 10 provided by the present invention. Since the specific structure and working principle of the detection device 10 have been described in detail in the previous specification, they will not be repeated here for the sake of brevity. The detection device 10 is fixed inside the housing 300.

[0057] Specifically, the compressor 20 includes a housing 300 and a detection device 10. The detection device 10 is fixed inside the housing 300 and located on one side of the housing 300. The user can fix the detection device 10 at different heights on the inner circle of the housing 300 as needed. The lead wire of the detection device 10 is transmitted to the outside through the terminal of the upper cover 221 of the compressor 20. The liquid level information inside the compressor 20 is detected and judged through the external collection terminal, so as to achieve the effect of real-time confirmation of the liquid level inside the compressor 20.

[0058] In this embodiment, the detection device 10 further includes a fixing piece 150, which is fixedly disposed on the top of the outer shell 100 and used for fixed connection with the interior of the shell 300, and the connection method is spot welding connection.

[0059] In this embodiment, the compressor 20 employs the detection device 10 provided by the present invention. The detection device 10 is suitable for the high-temperature and high-pressure environment inside the compressor 20, and can detect and provide feedback on the liquid level inside the compressor 20 in real time. It can also directly collect the liquid level data inside the compressor 20 from the outside, and has the advantages of being simple, reliable, and convenient to detect. At the same time, the detection device 10 uses the height of the rise of the liquid refrigerant surface by the float 212 as the signal source to trigger the circuit switching of the detection component 200. The circuit structure is simple and effective, does not use complex electronic components, has strong anti-interference ability against the high-temperature and high-pressure environment inside the compressor 20 and the magnetic field of the motor, has high reliability, and can be reused.

[0060] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A detection device, characterized in that, include: The outer casing includes a liquid level chamber and an insulation chamber; A detection component is provided inside the liquid level tank. The detection component includes a trigger part and a conductive part that is isolated and connected to the upper part of the trigger part. The trigger part is connected to the liquid level tank. One end of the conductive part is electrically connected to a display device. The conductive part is connected to the insulating tank and both are filled with insulating liquid. The triggering part includes a base, which includes a lower through hole and a side through hole. The lower through hole is located below the side through hole and both are connected to the liquid level tank. The outer shell further includes a fixing hole connecting the liquid level chamber and the insulating chamber; the conductive part includes an upper cover fixedly connected to the base, the upper cover including an outward protrusion, the outward protrusion being embedded in the fixing hole and connecting the interior of the insulating chamber and the upper cover; Liquid refrigerant enters the liquid level chamber, triggering the trigger unit and activating the circuit of the activation unit, thereby feeding back liquid level information to the display device; The triggering part further includes a float located inside the base; the conducting part further includes a conductive element fixed inside the upper cover; wherein the liquid refrigerant causes the float to float so that the float conducts the circuit of the conductive element; The detection component further includes an insulating diaphragm, which is fixed to the upper end of the base along the circumference of the base to isolate the base from the upper cover.

2. The detection device according to claim 1, characterized in that, The conductive element includes an upper contact and a lower contact located below the upper contact, with the upper and lower contact extending towards each other; wherein, the float rises to connect the upper and lower contact.

3. The detection device according to any one of claims 1-2, characterized in that, The top cover includes an insulating cavity, which is formed by an inward recess on the side of the top cover that connects to the base, and the insulating cavity has a hemispherical structure.

4. The detection device according to claim 1, characterized in that, The outer casing also includes a sealing liquid pipe communicating with the insulating chamber. One end of the sealing liquid pipe is connected to the insulating chamber, and the other end is connected to the inside of the compressor. The insulating liquid flows from the conductive part to the insulating chamber and is discharged into the sealing liquid pipe.

5. The detection device according to claim 1, characterized in that, The detection components are provided in multiple ways, and the multiple detection components are spaced apart in the liquid level tank along the height direction of the liquid level tank.

6. A compressor, characterized in that, include: case; A detection device, wherein the detection device is the detection device according to any one of claims 1-5, and the detection device is fixed inside the housing.

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