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CN-122014620-A - Swing type oil level alarm for rotor compressor

CN122014620ACN 122014620 ACN122014620 ACN 122014620ACN-122014620-A

Abstract

The invention provides a swing type oil level alarm for a rotor compressor, which comprises a base, an oil level detection assembly and an external sensor, wherein the base is arranged in the compressor, the oil level detection assembly is arranged on the base in a deflectable way and is used for detecting the oil level in the compressor, and the external sensor is arranged outside the compressor and is matched with the oil level detection assembly to transmit the oil level in the compressor. The base of the invention can be arranged on the inner peripheral surface of the side wall of the compressor shell, or on the top end surface of the lower shell cover of the compressor, and the external sensor is arranged on the outer peripheral surface of the side wall of the shell of the compressor, or on the bottom end surface of the lower shell cover of the compressor, so that the space of the lower part and the side surface of the rotor compressor can be effectively utilized, the height of the compressor shell is not required to be increased, the cost control is better, and the compressor can keep the original appearance unchanged, is more beneficial to the system matching of a client, is more beneficial to the use of clients and reduces the transformation cost of air conditioner manufacturers.

Inventors

  • PAN JIN
  • WANG YANZHEN

Assignees

  • 上海海立电器有限公司

Dates

Publication Date
20260512
Application Date
20260224

Claims (10)

  1. 1. The swing type oil level alarm for the rotor compressor is characterized by comprising a base (3), an oil level detection assembly and an external sensor (5), wherein the base (3) is arranged inside the compressor, the oil level detection assembly is arranged on the base (3) in a deflectable mode and used for detecting the oil level inside the compressor, the external sensor (5) is arranged outside the compressor, and the external sensor (5) is matched with the oil level detection assembly and used for transmitting the oil level inside the compressor.
  2. 2. The swing type oil level alarm for a rotor compressor according to claim 1, wherein the oil level detection assembly comprises a connecting rod (2), a floating ball (1) and an internal sensor (6), the connecting rod (2) is connected with the base (3) in a deflection mode, the end portion, far away from the base (3), of the connecting rod (2) is fixedly connected with the floating ball (1), and the internal sensor (6) is arranged at one end, far away from the floating ball (1), of the connecting rod (2) or on the floating ball (1).
  3. 3. The wobble-type oil level alarm for use in a rotor compressor as set forth in claim 2, wherein the connecting rod (2) has a curvature along an extending direction of the rod body.
  4. 4. The swing type oil level alarm for a rotor compressor according to claim 2, wherein the connecting rod (2) is integrated with the floating ball (1) or is a separate piece.
  5. 5. The wobble oil level alarm for use in a rotor compressor as set forth in claim 2, further comprising a deflection limiting assembly (4), wherein the deflection limiting assembly (4) is configured to limit an angle of deflection of the connecting rod (2) about the base (3).
  6. 6. The wobble oil level warning apparatus for use in a rotor compressor as claimed in claim 5, wherein said connecting rod (2) is deflected around the base (3) by an angle in the range of 30 ° to 180 °.
  7. 7. The swing type oil level alarm for the rotor compressor according to claim 5, wherein the connecting rod (2) is provided with a connecting rod through hole, the connecting rod through hole is sleeved on the outer side of the outer peripheral surface of the base (3), and the deflection limiting assembly (4) is externally arranged and is arranged between the base (3) and the connecting rod through hole and used for limiting the deflection angle of the connecting rod (2) around the base (3).
  8. 8. The swing type oil level alarm for a rotor compressor according to claim 5, wherein a deflection connecting component (7) is further arranged between the connecting rod (2) and the base (3), the connecting rod (2) deflects around the base (3) through the deflection connecting component (7), the deflection limiting component (4) is fixedly arranged on the base (3) and used for limiting the deflection angle of the connecting rod (2) around the base (3), or the deflection limiting component (4) is fixedly arranged on the connecting rod (2) and used for limiting the deflection angle of the connecting rod (2) around the base (3), or the deflection limiting component (4) is simultaneously arranged on the connecting rod (2) and the base (3) and used for limiting the deflection angle of the connecting rod (2) around the base (3).
  9. 9. A wobble oil level alarm for use in a rotor compressor as claimed in claim 1, wherein the external inductor (5) is provided on the outer peripheral surface of the side wall of the housing (9) of the compressor, or on the outer end surface of the bottom of the lower shell cover (8) of the compressor, or on the outer peripheral surface of the side wall of the lower shell cover (8) of the compressor.
  10. 10. A wobble oil level alarm for use in a rotor compressor as claimed in claim 1, wherein the base (3) is provided on an inner peripheral surface of a side wall of a casing (9) of the compressor, or on an inner end surface of a bottom of a lower casing cover (8) of the compressor, or on an inner peripheral surface of a side wall of the lower casing cover (8) of the compressor.

Description

Swing type oil level alarm for rotor compressor Technical Field The invention relates to the technical field of refrigeration equipment, in particular to a swing type oil level alarm used in a rotor compressor. Background In the prior art, a magnetic float of an oil level sensor for a compressor is generally made of polytetrafluoroethylene (PTFE, also called teflon) material, and a certain amount of magnet is fixed on the float body to form a solid magnetic float. Since the density of the polytetrafluoroethylene material is about 2.3 g/cm3, the volume occupied by the magnet in the magnetic float is relatively small, and the density is about 6g/cm3. The density of the lubricating oil in the compressor is generally 0.85-0.95 g/cm < 3 >, so that the magnetic floater cannot follow the fluctuation of the oil surface only by the buoyancy of the magnetic floater, and the effect of external force is obviously required. For this reason, current oil level sensors generally add a buoyancy spring under the magnetic float to push the magnetic float to act. Because the buoyancy spring needs to be perpendicular to the lower part of the compressor, and meanwhile, because the bimetallic strip in the buoyancy spring needs a fixed space at two sides, a motion space of the bimetallic strip and a packaging space of the bimetallic strip, the whole oil level alarm needs to have a certain height in the longitudinal direction of the lower part of the compressor. Secondly, because the floating ball needs to work on the guide rod stably, and the internal magnet needs to have certain precision to cooperate with the bimetallic strip in the buoyancy spring, the floating ball needs to have certain volume to ensure the influence caused by shaking, fluttering and the like in view of the fluctuation and bubbles on the oil surface, and therefore, the whole oil level alarm needs to have certain space in the transverse direction of the lower part of the compressor. To sum up, in order to adopt the magnetic-levitation ball type oil level alarm at present, the compressor needs to additionally increase lower space to place, and when increasing the cost, the longitudinal space of the compressor is increased, and the longitudinal space requirement of the compressor on an air conditioning system is also increased. Part of customers cannot match because the outer casing of the air conditioning system is a standard component. Disclosure of Invention In view of the above-described drawbacks of the prior art, an object of the present invention is to provide a swing type oil level alarm for use in a rotor compressor, which is intended to solve the problems of the prior art using a floating ball type oil level alarm. To achieve the above and other related objects, the present invention provides a swing type oil level alarm for use in a rotor compressor, comprising a base, an oil level detecting assembly, and an external sensor, wherein the base is disposed inside the compressor, the oil level detecting assembly is deflectable on the base for detecting an oil level inside the compressor, and the external sensor is disposed outside the compressor, and the external sensor is matched with the oil level detecting assembly for transmitting the oil level inside the compressor. Preferably, the oil level detection assembly comprises a connecting rod, a floating ball and an internal inductor, wherein the connecting rod is connected with the base in a deflection way, the end, far away from the base, of the connecting rod is fixedly connected with the floating ball, and the internal inductor is arranged at one end, far away from the floating ball, of the connecting rod or on the floating ball. Preferably, the connecting rod has a curvature along the extending direction of the rod body. Preferably, the connecting rod and the floating ball are integrated or separated. Preferably, the device further comprises a deflection limiting assembly, wherein the deflection limiting assembly is used for limiting the deflection angle of the connecting rod around the base. Preferably, the angle range of deflection of the connecting rod around the base is 30-180 degrees. Preferably, the connecting rod is provided with a connecting rod through hole, the connecting rod through hole is sleeved on the outer side of the outer peripheral surface of the base, and the deflection limiting assembly is externally arranged and is arranged between the base and the connecting rod through hole and used for limiting the deflection angle of the connecting rod around the base. The deflection limiting assembly is fixedly arranged on the base and used for limiting the deflection angle of the connecting rod around the base, or the deflection limiting assembly is fixedly arranged on the connecting rod and used for limiting the deflection angle of the connecting rod around the base, or the deflection limiting assembly is simultaneously arranged on the connecting rod and the base and used for limiting the d