WO2019205666A1 - 压缩机及空调器及压缩机的控制方法 - Google Patents

压缩机及空调器及压缩机的控制方法 Download PDF

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Publication number
WO2019205666A1
WO2019205666A1 PCT/CN2018/121537 CN2018121537W WO2019205666A1 WO 2019205666 A1 WO2019205666 A1 WO 2019205666A1 CN 2018121537 W CN2018121537 W CN 2018121537W WO 2019205666 A1 WO2019205666 A1 WO 2019205666A1
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Prior art keywords
oil
compressor
liquid level
operating frequency
pool
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PCT/CN2018/121537
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English (en)
French (fr)
Inventor
张仕强
黄文豪
李立民
冯涛
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珠海格力电器股份有限公司
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Publication of WO2019205666A1 publication Critical patent/WO2019205666A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/021—Control systems for the circulation of the lubricant

Definitions

  • the present invention relates to the field of air conditioning technology, and in particular to a compressor, an air conditioner, and a control method for the compressor.
  • This pipe is the press drain pipe, and its main function is to prevent the oil volume of the compressor oil pool from being too high.
  • the principle of the use of this press drain pipe is mainly to use the siphon phenomenon, the so-called siphon phenomenon is that the pressure near the high-speed fluid will be lower than the normal pressure.
  • the position of the discharge pipe of the press is lower than the highest warning line of the oil level, so that the oil level is always in the safe oil level range.
  • the embodiment of the invention provides a control method for a compressor, an air conditioner and a compressor, so as to solve the technical problem that the high operating frequency of the compressor in the prior art is prone to lack of oil.
  • An embodiment of the present application provides a compressor including: a main casing; an oil pool formed in the main casing; an exhaust port disposed on the main casing; an oil discharge pipe connecting the oil pool and the exhaust port; and flow regulation
  • the device is arranged on the oil drain pipe for adjusting the flow rate of the oil drain pipe.
  • the compressor further includes: an operating component disposed in the main housing; a controller electrically connected to the flow regulator, the controller is configured to obtain an operating frequency of the operating component, and control the flow regulation inversely proportional to the operating frequency Adjusted flow.
  • the compressor further includes a liquid level viewer disposed at a position on the main casing corresponding to the oil sump, and the liquid level observer is configured to observe the liquid level of the oil in the oil sump.
  • the level observer is marked with a scale that corresponds to the level in the oil sump.
  • the liquid level includes a highest alert level, and the interface of the drain tube to the oil sump is below the highest alert level.
  • the oil sump is formed at the bottom of the main housing.
  • the flow regulator is an adjustable opening size device.
  • the application also provides an air conditioner comprising a compressor, the compressor being the compressor described above.
  • the application also provides a control method of the compressor, comprising: obtaining an operating frequency of the compressor; controlling a flow rate of the oil discharge pipe between the oil pool of the compressor and the exhaust port thereof according to the operating frequency, and the flow rate is inversely proportional to the operating frequency.
  • control method controls the flow rate of the drain pipe by controlling the opening degree of the drain pipe.
  • the flow rate of the drain pipe is regulated by the flow regulator.
  • the flow rate of the oil drain pipe is increased by the flow regulator, so that even if the pressure difference between the air pressure of the compressor exhaust port and the oil pool is small, the oil discharge pipe can obtain sufficient oil supply from the oil pool.
  • Exhaust port when the operating frequency of the compressor is high, the flow rate of the oil drain pipe is adjusted by the flow regulator, so that even if the pressure difference between the air pressure of the compressor exhaust port and the oil pool is large, excessive oil will not be allowed.
  • the exhaust port is supplied through the oil drain pipe to prevent the oil supply in the oil pool from falling too fast, and the oil supply is not timely, thereby ensuring the performance of the compressor and preventing the compressor from being burnt due to lack of oil.
  • Figure 1 is a schematic view showing the entire structure of an embodiment of a compressor according to the present invention.
  • FIG. 1 shows an embodiment of a compressor of the present invention including a main housing 10, an oil sump 20, an exhaust port, an oil drain tube 30, and a flow regulator 40.
  • the oil pool 20 is formed in the main casing 10, the exhaust port is disposed on the main casing 10, the oil discharge pipe 30 is connected to the oil pool 20 and the exhaust port, and the flow regulator 40 is disposed on the oil discharge pipe 30.
  • the flow rate of the oil discharge pipe 30 is adjusted by the flow regulator 40.
  • the flow rate of the oil discharge pipe 30 is increased by the flow regulator 40, so that even if the pressure difference between the air pressure of the compressor exhaust port and the oil pool 20 is small, the oil discharge pipe 30 can be from the oil pool 20.
  • the oil pool 20 is formed at the bottom of the main casing 10.
  • the compressor further includes an operating component 50 and a controller.
  • the operating component 50 is disposed in the main casing 10, and the controller is electrically connected to the flow regulator 40.
  • the operating frequency of the running component 50 is obtained by the controller, after which the controller controls the flow rate adjusted by the flow regulator 40 inversely proportional to the operating frequency, that is, when the operating frequency is low, the flow rate of the oil drain pipe 30 is increased, and when the operating frequency is high The flow rate of the oil drain pipe 30 is adjusted.
  • the compressor further includes a liquid level observer 60 disposed at a position on the main casing 10 corresponding to the oil pool 20.
  • the liquid level of the oil in the oil pool 20 is observed by the liquid level observer 60 to replenish the oil in time when the liquid level of the oil in the oil pool 20 is too low.
  • a scale is identified on the level observer 60, the scale corresponding to the level in the oil sump 20. By means of the scale, the user can more easily know the level in the oil sump 20 in order to add the oil at the right time.
  • the liquid level includes the highest warning liquid level 70, and the interface of the oil discharge pipe 30 and the oil pool 20 is lower than the highest warning liquid level 70, so that the oil level is always in the safe oil level interval.
  • the flow regulator 40 is an adjustable opening size device, that is, the present invention adjusts the flow rate of the oil discharge pipe 30 by adjusting the opening degree of the oil discharge pipe 30.
  • the present invention also provides an air conditioner including the above-described compressor.
  • the air conditioner using the above compressor can avoid the problem of damage to the whole system caused by the oil supply in the compressor at a high frequency.
  • the invention also provides a control method of a compressor, the control method of the compressor comprising:
  • the flow rate of the oil discharge pipe 30 between the oil pool 20 of the compressor and its exhaust port is controlled according to the operating frequency, and the flow rate is inversely proportional to the operating frequency. That is, as the operating frequency of the compressor increases, the flow rate of the oil discharge pipe 30 is adjusted; as the operating frequency of the compressor decreases, the flow rate of the oil discharge pipe 30 is increased.
  • the control method of the present invention when the operating frequency of the compressor is low, the flow rate of the oil discharge pipe 30 is increased, so that even if the pressure difference between the air pressure of the compressor discharge port and the oil pool 20 is small, the oil discharge pipe 30 can be oiled.
  • the pool 20 obtains sufficient oil to supply the exhaust port; when the operating frequency of the compressor is high, the flow rate of the oil drain pipe 30 is adjusted, so that even if the pressure difference between the air pressure of the compressor exhaust port and the oil pool 20 is large, Excess oil is supplied to the exhaust port through the oil discharge pipe 30, and the oil supply in the oil pool 20 is prevented from falling too fast, and the oil supply is not timely, thereby ensuring the performance of the compressor and preventing the compressor from being burnt due to lack of oil.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

一种压缩机、空调器及压缩机的控制方法，其中，压缩机包括主壳体（10）、油池（20）、排气口、排油管（30）和流量调节器（40）。油池（20）形成在主壳体（10）内，排气口设置在主壳体（10）上，排油管（30）连通油池（20）和排气口，流量调节器（40）设置在排油管（30）上，通过流量调节器（40）调节排油管（30）的流量。当压缩机的运行频率高时，通过流量调节器（40）调小排油管（30）的流量。

Description

压缩机及空调器及压缩机的控制方法
本申请要求于2018年4月23日提交中国专利局、申请号为201810367347.8、发明名称为“压缩机及空调器及压缩机的控制方法”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及空调技术领域，具体而言，涉及一种压缩机及空调器及压缩机的控制方法。
背景技术
目前，大部分压缩机在压机排气口与压机底部油池之间会设置一条连接管，这条管就是压机排油管，其主要作用是防止压缩机油池油量过高。这个压机排油管的使用原理主要是利用了虹吸现象，所谓虹吸现象就是在高速流体附近的压力会比正常压力低。压机排油管位置比油位最高警戒线低，从而实现了油位始终在安全油位区间。
当压缩机运行时，压缩机排气口的高速气体流速较高，此时排气管附近的压力较低，油池的压力相比较高，连接管在油池与排气口压差作用下，把高于压缩机排油管位置的油排出到压缩机排气口。
然而，当压缩机运行频率高时候，压缩机排气口的排油量巨大，压缩机底部油位会快速下降，此时若无法保证有效供油，压缩机会因为无法足够润滑从而烧毁，这对于整机系统是摧毁性的破坏。
发明内容
本发明实施例提供了一种压缩机及空调器及压缩机的控制方法，以解决现有技术中压缩机存在的高运行频率容易缺油的技术问题。
本申请实施方式提供了一种压缩机，包括：主壳体；油池，形成在主壳体内；排气口，设置在主壳体上；排油管，连通油池和排气口；流量调节器，设置在排油管上，用于调节排油管的流量。
在一个实施方式中，压缩机还包括：运行部件，设置在主壳体内；控 制器，与流量调节器电连接，控制器用于获取运行部件的运行频率，并根据运行频率呈反比地控制流量调节器调节的流量。
在一个实施方式中，压缩机还包括液位观察器，液位观察器设置在主壳体上与油池相对应地位置处，液位观察器用于观察油池内油液的液位。
在一个实施方式中，液位观察器上标识有刻度，刻度与油池中的液位相对应。
在一个实施方式中，液位包括最高警示液位，排油管与油池相连通的接口低于最高警示液位。
在一个实施方式中，油池形成在主壳体的底部。
在一个实施方式中，流量调节器为可调开度大小装置。
本申请还提供了一种空调器，包括压缩机，压缩机为上述的压缩机。
本申请还提供了一种压缩机的控制方法，包括：获取压缩机的运行频率；根据运行频率控制压缩机的油池与其排气口之间的排油管的流量，流量与运行频率成反比。
在一个实施方式中的控制方法，通过控制排油管的开度方式控制排油管的流量。
在上述实施例中，通过流量调节器调节排油管的流量。当压缩机的运行频率低时，通过流量调节器调大排油管的流量，这样即使压缩机排气口的气压与油池的压差较小，排油管也可以从油池获取足够的油供给排气口；当压缩机的运行频率高时，通过流量调节器调小排油管的流量，这样即使压缩机排气口的气压与油池的压差较大，也不会让过多的油通过排油管供给排气口，避免油池中的油位下降太快所导致的供油不及时，保证了压缩机的使用性能，防止压缩机因缺油烧毁。
附图说明
构成本申请的一部分的附图用来提供对本发明的进一步理解，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1是根据本发明的压缩机的实施例的整体结构示意图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚明白，下面结合实施方式和附图，对本发明做进一步详细说明。在此，本发明的示意性实施方式及其说明用于解释本发明，但并不作为对本发明的限定。
图1示出了本发明的压缩机的实施例，该压缩机包括主壳体10、油池20、排气口、排油管30和流量调节器40。其中，油池20形成在主壳体10内，排气口设置在主壳体10上，排油管30连通油池20和排气口，流量调节器40设置在排油管30上。
应用本发明的技术方案，通过流量调节器40调节排油管30的流量。当压缩机的运行频率低时，通过流量调节器40调大排油管30的流量，这样即使压缩机排气口的气压与油池20的压差较小，排油管30也可以从油池20获取足够的油供给排气口；当压缩机的运行频率高时，通过流量调节器40调小排油管30的流量，这样即使压缩机排气口的气压与油池20的压差较大，也不会让过多的油通过排油管30供给排气口，避免油池20中的油位下降太快所导致的供油不及时，保证了压缩机的使用性能，防止压缩机因缺油烧毁。
可选的，如图1所示，油池20形成在主壳体10的底部。
如图1所示，在本实施例的技术方案中，压缩机还包括运行部件50和控制器，运行部件50设置在主壳体10内，控制器与流量调节器40电连接。在使用时，通过控制器获取运行部件50的运行频率，之后控制器根据运行频率呈反比地控制流量调节器40调节的流量，即运行频率低时调大排油管30的流量，运行频率高时调小排油管30的流量。
作为一种优选的实施方式，如图1所示，压缩机还包括液位观察器60，液位观察器60设置在主壳体10上与油池20相对应地位置处。在使用时，通过液位观察器60观察油池20内油液的液位，以在油池20内油液的液位过低时及时补充油液。更为优选的，在液位观察器60上标识有刻度，刻度与油池20中的液位相对应。通过刻度，使用者可以更为便捷地得知油池20中的液位，以预期在合适的时间添加油液。如图1所示，液位包括最高警示液位70，排油管30与油池20相连通的接口低于最高警示液位70，以实现油位始终在安全油位区间。
在上述实施方式中，流量调节器40为可调开度大小装置，即本发明通过调节排油管30的开度的方式调节排油管30的流量。
本发明还提供了一种空调器，该空调器包括上述的压缩机。采用上述压缩机的空调器，可以避免空调器在高频率时压缩机中供油不及时所导致的整机系统损坏的问题。
本发明还提供了一种压缩机的控制方法，该压缩机的控制方法包括：
获取压缩机的运行频率；
根据运行频率控制压缩机的油池20与其排气口之间的排油管30的流量，流量与运行频率成反比。即，随着压缩机的运行频率的升高，而调小排油管30的流量；随着压缩机的运行频率的降低，而调大排油管30的流量。
采用本发明的控制方法，当压缩机的运行频率低时，调大排油管30的流量，这样即使压缩机排气口的气压与油池20的压差较小，排油管30也可以从油池20获取足够的油供给排气口；当压缩机的运行频率高时，调小排油管30的流量，这样即使压缩机排气口的气压与油池20的压差较大，也不会让过多的油通过排油管30供给排气口，避免油池20中的油位下降太快所导致的供油不及时，保证了压缩机的使用性能，防止压缩机因缺油烧毁。
在上述控制方法中，通过控制排油管30的开度方式控制排油管30的流量，方便快捷。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明实施例可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种压缩机，其特征在于，包括：
    主壳体(10)；
    油池(20)，形成在所述主壳体(10)内；
    排气口，设置在所述主壳体(10)上；
    排油管(30)，连通所述油池(20)和所述排气口；
    流量调节器(40)，设置在所述排油管(30)上，用于调节所述排油管(30)的流量。
  2. 根据权利要求1所述的压缩机，其特征在于，所述压缩机还包括：
    运行部件(50)，设置在所述主壳体(10)内；
    控制器，与所述流量调节器(40)电连接，所述控制器用于获取所述运行部件(50)的运行频率，并根据所述运行频率呈反比地控制所述流量调节器(40)调节的流量。
  3. 根据权利要求1所述的压缩机，其特征在于，压缩机还包括液位观察器(60)，所述液位观察器(60)设置在所述主壳体(10)上与所述油池(20)相对应地位置处，所述液位观察器(60)用于观察所述油池(20)内油液的液位。
  4. 根据权利要求3所述的压缩机，其特征在于，所述液位观察器(60)上标识有刻度，所述刻度与所述油池(20)中的液位相对应。
  5. 根据权利要求4所述的压缩机，其特征在于，所述液位包括最高警示液位(70)，所述排油管(30)与所述油池(20)相连通的接口低于所述最高警示液位(70)。
  6. 根据权利要求1所述的压缩机，其特征在于，所述油池(20)形成在所述主壳体(10)的底部。
  7. 根据权利要求1至6中任一项所述的压缩机，其特征在于，所述流量调节器(40)为可调开度大小装置。
  8. 一种空调器，包括压缩机，其特征在于，所述压缩机为权利要求1至7中任一项所述的压缩机。
  9. 一种压缩机的控制方法，其特征在于，包括：
    获取所述压缩机的运行频率；
    根据所述运行频率控制所述压缩机的油池(20)与其排气口之间的排油管(30)的流量，所述流量与所述运行频率成反比。
  10. 根据权利要求9所述的压缩机的控制方法，其特征在于，通过控制所述排油管(30)的开度方式控制所述排油管(30)的流量。
PCT/CN2018/121537 2018-04-23 2018-12-17 压缩机及空调器及压缩机的控制方法 WO2019205666A1 (zh)

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