WO2024001516A1 - 压缩机后壳组件及包括其的涡旋压缩机 - Google Patents

压缩机后壳组件及包括其的涡旋压缩机 Download PDF

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Publication number
WO2024001516A1
WO2024001516A1 PCT/CN2023/092484 CN2023092484W WO2024001516A1 WO 2024001516 A1 WO2024001516 A1 WO 2024001516A1 CN 2023092484 W CN2023092484 W CN 2023092484W WO 2024001516 A1 WO2024001516 A1 WO 2024001516A1
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WO
WIPO (PCT)
Prior art keywords
compressor
rear housing
mounting plate
heat dissipation
housing assembly
Prior art date
Application number
PCT/CN2023/092484
Other languages
English (en)
French (fr)
Inventor
邢冠东
黄志刚
牟英涛
Original Assignee
上海海立新能源技术有限公司
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Application filed by 上海海立新能源技术有限公司 filed Critical 上海海立新能源技术有限公司
Publication of WO2024001516A1 publication Critical patent/WO2024001516A1/zh

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Classifications

    • 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
    • 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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
    • 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
    • F04C29/04—Heating; Cooling; Heat insulation
    • F04C29/042—Heating; Cooling; Heat insulation by injecting a fluid
    • 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
    • F04C29/04—Heating; Cooling; Heat insulation
    • F04C29/047—Cooling of electronic devices installed inside the pump housing, e.g. inverters
    • 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
    • F04C2240/00—Components
    • F04C2240/30—Casings or housings

Definitions

  • the present invention relates to the field of compressors, and specifically to a compressor rear housing assembly and a scroll compressor including the same.
  • Inverter compressors control the motor through a controller for variable frequency operation.
  • the controller emits high heat because it has a voltage conversion crystal.
  • the inverter and compressor of household air conditioning equipment are separated from each other. Fans and metal heat sinks can be used to cool down the controller.
  • In automotive electric scroll compressors usually the controller and the compressor are designed as one.
  • the patent discloses a scroll compressor, which includes a casing, a suction pipe, a cold rod and a controller.
  • the casing is divided into an electronic control area and a high-pressure area.
  • the suction pipe is set on the side of the casing, and the cold rod enters.
  • the electrical control area is connected to the suction pipe and is fixed to the shell wall of the high-pressure area.
  • the cold rod has internal channels for circulation of refrigerant.
  • the controller is set on the outer surface of the cold rod, and the waste heat generated by the controller is dissipated by the cold rod. That is, the above-mentioned patent adds a cold rod structure and sets the controller on the outer surface of the cold rod.
  • the waste heat generated by the controller is transferred to the suction refrigerant through the cold rod.
  • This solution has two limitations: first, the cold rod is installed in the controller cavity, which will occupy a large space in the cavity, but the area that can contact the controller is small, and it can only dissipate heat locally; second, Since the internal channel of the cold rod is linear and directly connected to the suction port, the position of the suction port is determined by the position of the controller and the cold rod, which limits the position of the compressor suction port.
  • the patent discloses a scroll compressor with a heat dissipation structure, including a casing.
  • the two ends of the casing are respectively provided with a top cover and a bottom cover, and a circuit board is connected to one end of the bottom cover.
  • PCB printed Circuit Board
  • the shell is connected to the bottom cover and has an air suction port on one side for absorbing refrigerant; the air suction port is provided with a hole corresponding to the bearing seat in the bottom cover for guiding the refrigerant.
  • Fin-shaped baffle When the refrigerant enters the housing through the suction port, the refrigerant is guided into the bearing of the bearing seat through the baffle, and is finally transferred to the PCB controller through thermal conductive silicone grease.
  • This patent diverts part of the refrigerant to the PCB controller by adding fin-shaped baffles in the bottom cover.
  • this solution has three limitations: First, the refrigerant guided by the fin-shaped baffles can only affect the bearing seat. The outer area is cooled, and the cooling effect on the controller in the corresponding area of the bearing seat is poor; secondly, more of the refrigerant entering the compressor from the suction port flows toward the exhaust port, and only a small part flows along the fin baffle Flow participates in cooling; third, the controller and the low-temperature refrigerant are separated by a thick bottom cover. This design will increase the thermal resistance between them and affect the cooling effect.
  • the object of the present invention is to provide a compressor rear housing assembly and a scroll compressor including the same.
  • the scroll compressor including the rear housing assembly has a controller cooling function and utilizes the sucked low-temperature refrigerant.
  • the heat exchange with the heat dissipation surface of the controller power module is enhanced, and the low-temperature refrigerant lubricates the auxiliary bearing area at the same time, improving the reliability and durability of the compressor.
  • a first aspect of the present invention provides a compressor rear housing assembly, including a rear housing body and a mounting plate sealingly connected to the rear housing body;
  • the rear shell body is provided with an air suction port, an air flow channel and at least one first air flow hole;
  • one side of the rear housing body is a refrigerant chamber, and the other side forms a heat dissipation chamber with the mounting plate.
  • the heat dissipation chamber communicates with the air flow channel through the air flow channel.
  • the suction ports are connected;
  • the heat dissipation cavity is connected to the refrigerant cavity through the at least one first air flow hole.
  • the rear shell body is further provided with at least a second air flow hole
  • At least one of the second air flow holes is connected with the auxiliary bearing cavity of the compressor.
  • the rear housing body and the mounting plate form a sealed connection through a sealing component and a connecting component
  • the sealing assembly includes a sealing ring and a sealing groove for positioning the sealing ring.
  • the sealing groove is provided on an end surface of the rear housing body facing the mounting plate, or the sealing groove is provided on the mounting plate. Towards one end surface of the rear shell body.
  • the sealing ring is made of elastic rubber material.
  • connection component includes: a plurality of bolt holes provided on an end surface of the rear housing body facing the mounting plate;
  • a plurality of bolt through holes are provided on the edge of the mounting plate
  • a plurality of bolts each bolt passes through one of the bolt through holes and is bolted to the bolt hole.
  • the mounting plate is made of aluminum alloy material or copper alloy material.
  • At least one slot for accommodating at least one power module is provided on a side of the mounting plate facing away from the heat dissipation cavity.
  • a second aspect of the present invention provides a scroll compressor, including the compressor rear housing assembly.
  • the scroll compressor further includes at least one power module, and the heat dissipation surface of the power module conflicts with the mounting plate.
  • the scroll compressor further includes a controller box electrically connected to the at least one power module;
  • the controller box is disposed on the side of the compressor rear cover facing the rear housing body.
  • the compressor rear shell assembly of the present invention makes reasonable use of its internal space without changing the external structure of the compressor and adding additional cooling pipelines, and by adding a heat dissipation cavity connected to the suction port.
  • the heat dissipation cavity is equipped with There is an oil and gas channel leading to the auxiliary bearing, and an air flow hole directly connected to the low-pressure refrigerant chamber.
  • the scroll compressor including the above-mentioned rear shell assembly guides the low-temperature refrigerant entering from the suction port to the heat dissipation of the rear shell assembly.
  • the low-temperature refrigerant fully exchanges heat with the mounting plate of the controller power module, thereby taking away the waste heat generated by the controller power module; at the same time, the heat dissipation cavity is also connected to the auxiliary bearing cavity, and the refrigerant flows through The secondary bearing chamber can play a
  • the cooling and heat dissipation effect on the auxiliary bearing improves the controller's capability range and the reliability of the bearing.
  • the compressor of the present invention does not need to change its external structure and add additional cooling pipelines.
  • the suction refrigerant participates in the cooling of the controller and takes into account the cooling and lubrication of the auxiliary bearing. It has the advantages of simple cooling structure and sealing structure and high reliability.
  • Figure 1 is a schematic structural diagram of the side of the rear housing body facing the mounting plate according to an embodiment of the present invention
  • Figure 2 is a schematic structural diagram of a mounting plate according to an embodiment of the present invention.
  • Figure 3 is a schematic structural diagram of a compressor rear housing assembly according to an embodiment of the present invention.
  • Example embodiments will now be described more fully with reference to the accompanying drawings.
  • Example embodiments may, however, be embodied in various forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concepts of the example embodiments. To those skilled in the art.
  • the described features, structures or characteristics may be combined in any suitable manner in one or more embodiments.
  • first, second, etc. are used herein to refer to various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element.
  • first interface and the second interface are represented.
  • singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context indicates otherwise.
  • the terms “comprising” and “including” indicate the presence of stated features, steps, operations, elements, components, items, categories, and/or groups, but do not exclude one or more other features, steps, operations, The presence, occurrence, or addition of elements, components, items, categories, and/or groups.
  • the present invention provides a compressor rear housing assembly and a compressor rear housing assembly including the same.
  • the scroll compressor, the compressor rear housing assembly includes a rear housing body and a mounting plate sealingly connected to the rear housing body; the rear housing body is provided with an air suction port, an air flow channel and at least a first air flow hole ;
  • the compressor rear shell assembly is used in a compressor, one side of the rear shell body is a refrigerant cavity, and the other side and the mounting plate form a heat dissipation cavity, and the heat dissipation cavity communicates with the air flow channel through the air flow channel.
  • the suction port is connected; the heat dissipation cavity is connected with the refrigerant cavity through the at least one first air flow hole.
  • the compressor rear shell assembly of the present invention makes reasonable use of its internal space without changing the external structure of the compressor and adding additional cooling pipelines, and by adding a heat dissipation cavity connected to the suction port.
  • the heat dissipation cavity is equipped with There is an oil and gas channel leading to the auxiliary bearing, and an air flow hole directly connected to the low-pressure refrigerant chamber.
  • the scroll compressor including the above-mentioned rear shell assembly guides the low-temperature refrigerant entering from the suction port to the heat dissipation of the rear shell assembly.
  • the low-temperature refrigerant fully exchanges heat with the mounting plate of the controller power module, thereby taking away the waste heat generated by the controller power module; at the same time, the heat dissipation cavity is also connected to the auxiliary bearing cavity, and the refrigerant flows through
  • the secondary bearing chamber can cool and dissipate the heat of the secondary bearing, which improves the controller's capability range and the reliability of the bearing.
  • the compressor of the present invention does not need to change its external structure and add additional cooling pipelines.
  • the suction refrigerant participates in the cooling of the controller and takes into account the cooling and lubrication of the auxiliary bearing. It has the advantages of simple cooling structure and sealing structure and high reliability.
  • FIG. 1 is a schematic structural diagram of the side of the rear housing body facing the mounting plate according to an embodiment of the present invention.
  • the rear housing body 1 is provided with an air suction port 8 and an air flow channel 81 connected with the air suction port 8.
  • the rear case body 1 is also provided with a plurality of first air flow holes 11 .
  • the back shell body is provided with two first air flow holes 11 in the upper and lower parts for communicating with the refrigerant chamber; at the same time, a second air flow hole is also provided in the middle of the back shell body 1 Hole 12 is used to communicate with the auxiliary bearing cavity of the compressor.
  • FIG 2 is a schematic structural diagram of a mounting plate according to an embodiment of the present invention.
  • the mounting plate 2 can be a flat plate.
  • a compressor rear shell assembly is formed.
  • the structure of the rear housing assembly of the compressor is as shown in Figure 3.
  • One side of the rear housing body 1 is the refrigerant chamber 83, and the other side is connected to the refrigerant chamber 83.
  • the mounting plate 2 forms a heat dissipation cavity 82, which is connected to the suction port 8 through the air flow channel 81; the heat dissipation cavity 82 is connected to the refrigerant chamber 83 through the first air flow hole 11. Pass.
  • Parameters such as the number and shape of the first air flow holes 11 can be set according to the compressor model, so that the airflow from the suction port 8 can be set.
  • the side of the mounting plate 2 facing away from the heat dissipation cavity 82 can be equipped with the power module of the controller. At this time, the low-temperature and low-pressure refrigerant takes away the heat through strong convection heat exchange with the mounting plate. Therefore, the mounting plate can use a thermal conductivity coefficient comparison Made of high-quality aluminum alloy materials or copper alloy materials.
  • the side of the mounting plate 2 facing away from the heat dissipation cavity can be provided with multiple card slots for accommodating multiple power modules.
  • the structure of the card slots is not limited. It should be noted that, When the power module of the controller is inserted into the card slot, its heat dissipation surface should conflict with the mounting plate 2 so as to better dissipate heat through the heat dissipation cavity.
  • the auxiliary bearing cavity 71 is connected with the heat dissipation cavity 82 through the second air flow hole 12 , so that the refrigerant sucked from the suction hole flows to the low-pressure refrigerant cavity of the compressor while cooling the auxiliary bearing 7 and lubrication.
  • the rear housing body 1 and the mounting plate 2 are sealedly connected.
  • the rear shell body 1 and the mounting plate 2 can form a sealed connection through a sealing component and a connecting component.
  • the sealing component can include a sealing ring and a seal for positioning the sealing ring. Groove.
  • the sealing groove 13 is provided on an end surface of the rear housing body 1 facing the mounting plate 2 .
  • the sealing groove may also be provided on an end surface of the edge 2 of the mounting plate facing the rear case body 1 .
  • the sealing ring may be made of elastic rubber material, such as an O-ring or a sealing gasket. The sealing component and the connecting component cooperate to seal and fix the rear housing body 1 and the mounting plate 2 .
  • the connection assembly may include: a plurality of bolt holes 14, provided on an end surface of the rear housing body 1 facing the mounting plate 2; a plurality of bolt through holes 21, provided on the edge of the mounting plate 2; Bolts 212 , each bolt 212 passes through one of the bolt through holes 21 and is bolted to the bolt hole 14 .
  • the sealing connection between the rear shell body 1 and the mounting plate 2 is not limited to the above method, and can be a sealing connection method such as welding.
  • one end of the airflow channel 81 on the rear shell body 1 is connected to the compressor suction port 8, and the other end is structurally connected to the heat dissipation cavity 82 of the rear shell body 1, and the airflow channel 81 will be sucked in from the air suction port 8.
  • the refrigerant is directed into the heat dissipation cavity 82.
  • the heat dissipation cavity 82 is a relatively closed cavity formed by the cooperation of the rear shell body 1 and the mounting plate 2 through the sealing assembly and the connecting assembly.
  • the heat dissipation cavity 82 is provided with There is a second air flow hole leading to the auxiliary bearing chamber, and a necessary first air flow hole directly connected to the low-pressure refrigerant chamber. There may be one or more first air flow holes.
  • the present invention also provides a scroll compressor, including the compressor rear housing assembly.
  • the above-mentioned scroll compressor may also include a front housing, a motor, a fixed scroll, an orbiting scroll, an auxiliary bearing 7 and a rear cover. Board 9 and other parts.
  • Figure 3 is a schematic structural diagram of the rear shell assembly of the compressor according to an embodiment of the present invention.
  • the scroll compressor further includes at least one power module 51.
  • the power module 51 is disposed on the mounting plate 2 away from the heat dissipation device. side of the cavity.
  • the power module 51 may be an IGBT (Insulated Gate Bipolar Transistor) power module.
  • the IGBT power module has the characteristics of large input impedance, small driving power, simple control circuit, small switching loss, fast on-off speed, and good working efficiency. High frequency, large component capacity and other advantages.
  • the power module has a heat dissipation surface.
  • the heat dissipation surface of the power module 51 needs to conflict with the mounting plate.
  • the scroll compressor also includes a heat dissipation surface electrically connected to the at least one power module 51.
  • the controller box 52, at least one power module and the controller box and other components constitute a controller for controlling the compressor motor.
  • the controller box 52 can be disposed on the side of the rear cover 9 facing the rear shell body 1, that is, Set inside the cavity of the compressor.
  • the refrigerant sucked into the suction port 8 enters the heat dissipation cavity 82 through the air flow channel 81.
  • the heat generated by the power module of the controller is transferred to the installation plate 2 through thermal conduction.
  • the low-temperature and low-pressure refrigerant passes through and is installed.
  • the plate 2 carries out strong convection heat exchange to take away the heat, and then the refrigerant gas after the heat exchange is completed enters the low-pressure refrigerant chamber 83 of the compressor through the first gas through hole 11 of the rear shell body.
  • the refrigerant gas enters the auxiliary bearing cavity 71 connected with the auxiliary bearing 7 through the second gas through hole 12 of the rear housing body, so that the refrigerant cools and lubricates the auxiliary bearing while flowing to the compressor refrigerant cavity 83 .
  • the scroll compressor of the present invention provides a cooling method for the power module of the controller without changing the external structure of the compressor and without adding additional cooling pipelines; the inhaled refrigerant participates in the cooling of the power module of the controller, while taking into account Cooling and lubrication of auxiliary bearings; it has the advantages of simple structure, controllable operating temperature, low probability of compressor failure, and high overall performance reliability, and is suitable for use as a vehicle compressor.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary Pumps (AREA)

Abstract

一种压缩机后壳组件及包括其的涡旋压缩机，压缩机后壳组件包括后壳本体（1）和与后壳本体（1）密封连接的安装板（2）；后壳本体（1）设置有一吸气口（8）、气流通道（81）和至少一第一气流通孔（11）；当后壳组件用于压缩机时，后壳本体（1）的一侧为冷媒腔（83），另一侧与安装板（2）构成散热腔（82），散热腔（82）通过气流通道（81）与吸气口（8）相连通；散热腔（82）通过至少一第一气流通孔（11）与冷媒腔（83）相连通。这种涡旋压缩机具有控制器冷却功能，利用吸入的低温冷媒对与控制器功率模块的散热面进行强化换热，低温冷媒同时润滑副轴承区域，提高压缩机的可靠性和耐久能力；这种压缩机无需改变其外形结构和增加额外冷却管路，具有冷却结构和密封结构简单，可靠性高等优点。

Description

压缩机后壳组件及包括其的涡旋压缩机 技术领域
本发明涉及压缩机领域，具体地说，涉及一种压缩机后壳组件及包括其的涡旋压缩机。
背景技术
变频压缩机通过控制器控制马达以进行变频运转，控制器因为具有电压转换晶体而会发出高热。家用空调设备的变频器与压缩机相互分离，其中，可利用风扇引流与金属散热片执行控制器的降温。而在车用电动涡旋压缩机中，通常，控制器和压缩机为一体设计。
车用电动涡旋压缩机的发展趋势为宽转速范围，压缩机在高转速运转时会使得控制器的发热量增加，另外，较低的转速意味着冷媒流量的降低，对控制器的冷却效果也会变差，这对控制器的散热能力都是极大的考验，压缩机在实际运转过程中，极容易触发控制器的过温保护甚至出现控制器烧毁停机的情况。
专利(CN113404668A)公开了一种涡旋压缩机，包括壳体、吸入管、冷棒以及控制器，壳体区分为电控区域和高压区域，吸入管设置在壳体的侧边，冷棒进入电控区域以连接该吸入管，并且固定在高压区域的壳壁。冷棒具有内部通道，用来供冷媒流通。控制器设置在冷棒的外表面，控制器产生的废热利用冷棒进行散逸。即上述专利通过增设冷棒结构，将控制器设置在冷棒的外表面，控制器产生的废热通过冷棒传递至吸入冷媒。该方案有两点局限性：一是冷棒安装在控制器腔内，会占据腔内较大的空间，但能与控制器接触的面积较小，只能对控制器局部进行散热；二是由于冷棒内部通道为直线形式且直接与吸气口相连，相当于吸气口的位置由控制器和冷棒的位置决定，限制了压缩机吸气口的位置。
专利(CN214617019U)公开一种具有散热结构的涡旋压缩机，包括壳体，壳体的两端分别设有顶盖和底盖，在底盖的一端连接有电路板 (Printed Circuit Board，PCB)控制器，壳体与底盖相连一侧开有吸气口，用于吸取冷媒；吸气口上与底盖内的轴承座相对应处设有用于对冷媒进行导向的翅片状挡板，当冷媒通过吸气口进入到壳体内时，冷媒通过挡板导向进入到轴承座的轴承内，最后通过导热硅脂传递至PCB控制器处，散热作用好，提升了涡旋压缩机的使用寿命，同时还能减少气体流动从而提高压缩机的效率，并且还能减少部分的噪音。该专利通过在底盖内增加翅片状挡板，将部分冷媒导流至PCB控制器处，但该方案的局限性有三点：一是翅片状挡板导流的冷媒只能对轴承座外侧区域进行冷却，对轴承座对应区域的控制器冷却效果较差；二是从吸气口进入压缩机内的冷媒更多的是向排气口方向流动，只有少部分会沿翅片挡板流动参与冷却；三是控制器与低温冷媒之间由较厚的底盖分隔，该设计会使得其之间的热阻变大，影响冷却效果。
现有技术中针对控制器的冷却问题在压缩机上增加散热结构，提高了控制器的可靠性，但是这些方案同时也带来了其他很多问题。
需要说明的是，在上述背景技术部分公开的信息仅用于加强对本发明的背景的理解，因此可以包括不构成对本领域技术人员已知的现有技术的信息。
发明内容
针对现有技术中的问题，本发明的目的在于提供一种压缩机后壳组件及包括其的涡旋压缩机，包括后壳组件的涡旋压缩机具有控制器冷却功能，利用吸入的低温冷媒对与控制器功率模块的散热面进行强化换热，低温冷媒同时润滑副轴承区域，提高压缩机的可靠性和耐久能力。本发明的第一方面提供了一种压缩机后壳组件，包括后壳本体和与所述后壳本体密封连接的安装板；
所述后壳本体设置有一吸气口、气流通道和至少一第一气流通孔；
当所述压缩机后壳组件用于压缩机时，所述后壳本体的一侧为冷媒腔，另一侧与所述安装板构成散热腔，所述散热腔通过所述气流通道与所述吸气口相连通；
所述散热腔通过所述至少一第一气流通孔与所述冷媒腔相连通。
根据本发明的第一方面，所述后壳本体还设置有至少第二气流通孔；
至少一所述第二气流通孔与压缩机的副轴承腔相连通。
根据本发明的第一方面，所述后壳本体和所述安装板通过密封组件和连接组件形成密封连接；
所述密封组件包括一密封圈和一定位所述密封圈的密封槽，所述密封槽设置于所述后壳本体朝向所述安装板的一端面，或所述密封槽设置于所述安装板朝向所述后壳本体的一端面。
根据本发明的第一方面，所述密封圈由弹性橡胶材料制成。
根据本发明的第一方面，所述连接组件包括：多个螺栓孔，设置于所述后壳本体朝向所述安装板的一端面；
多个螺栓通孔，设置于所述安装板的边缘；
多个螺栓，每一螺栓贯穿一所述螺栓通孔并与所述螺栓孔螺栓连接。
根据本发明的第一方面，所述安装板由铝合金材料或铜合金材料制成。
根据本发明的第一方面，所述安装板背离所述散热腔的一侧设置有容置至少一功率模块的至少一卡槽。
本发明的第二方面提供了一种涡旋压缩机，包括所述压缩机后壳组件。
根据本发明的第二方面，所述涡旋压缩机还包括至少一功率模块，所述功率模块的散热面与所述安装板相抵触。
根据本发明的第二方面，所述涡旋压缩机还包括与所述至少一功率模块电连接的控制器箱体；
所述控制器箱体设置于压缩机后盖板朝向所述后壳本体的一侧。
本发明的压缩机后壳组件在不改变压缩机外形结构和不增加额外冷却管路的情况下，通过合理利用其内部空间，通过增设一个与吸气口相连通的散热腔，该散热腔设有通往副轴承的油气通道，以及设置有与低压冷媒腔直接连接的气流通孔，包括上述后壳组件的涡旋压缩机将从吸气口进入的低温冷媒导流至后壳组件的散热腔内，此时低温的冷媒与控制器功率模块的安装板发生充分的对流换热，进而将控制器功率模块产生的废热带走；同时，散热腔还与副轴承腔室相连，冷媒流经副轴承腔室时可以起到 对副轴承的冷却和散热作用，提高了控制器的能力范围，以及轴承的可靠性。本发明的压缩机无需改变其外形结构和增加额外冷却管路，吸气冷媒参与控制器冷却，且兼顾副轴承的冷却和润滑；具有冷却结构和密封结构简单，可靠性高等优点。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本申请的实施例，并与说明书一起用于解释本申请的原理，通过阅读参照以下附图对非限制性实施例所作的详细描述，本发明的其它特征、目的和优点将会变得更明显。显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。此外，附图仅为本公开的示意性图解，并非一定是按比例绘制。图中相同的附图标记表示相同或类似的部分，因而将省略对它们的重复描述。附图中所示的一些方框图是功能实体，不一定必须与物理或逻辑上独立的实体相对应。
图1为本发明的一实施例的后壳本体朝向安装板一侧的结构示意图；
图2为本发明的一实施例的安装板的结构示意图；
图3为本发明的一实施例的压缩机后壳组件的结构示意图。
具体实施方式
现在将参考附图更全面地描述示例实施方式。然而，示例实施方式能够以多种形式实施，且不应被理解为限于在此阐述的范例；相反，提供这些实施方式使得本公开将更加全面和完整，并将示例实施方式的构思全面地传达给本领域的技术人员。所描述的特征、结构或特性可以以任何合适的方式结合在一个或更多实施方式中。
在本说明书的表示中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的表示意指结合该实施例或示例表示的具体特征、结构、材料或者特点包括于本说明书的至少一个实施例或示例中。而且，表示的具体特征、结构、材料或者特点可以在任一个或 多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中表示的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
在通篇说明书中，当说某器件与另一器件“连接”时，这不仅包括“直接连接”的情形，也包括在其中间把其它元件置于其间而“间接连接”的情形。表示“下”、“上”等相对空间的术语可以为了更容易地说明在附图中图示的一器件相对于另一器件的关系而使用。这种术语是指，不仅是在附图中所指的意义，还包括使用中的装置的其它意义或作业。例如，如果翻转附图中的装置，曾说明为在其它器件“下”的某器件则说明为在其它器件“上”。因此，所谓“下”的示例性术语，全部包括上与下方。装置可以旋转90°或其它角度，代表相对空间的术语也据此来解释。
虽然在一些实例中术语第一、第二等在本文中用来表示各种元件，但是这些元件不应当被这些术语限制。这些术语仅用来将一个元件与另一个元件进行区分。例如，第一接口及第二接口等表示。再者，如同在本文中所使用的，单数形式“一”、“一个”和“该”旨在也包括复数形式，除非上下文中有相反的指示。应当进一步理解，术语“包含”、“包括”表明存在所述的特征、步骤、操作、元件、组件、项目、种类、和/或组，但不排除一个或多个其他特征、步骤、操作、元件、组件、项目、种类、和/或组的存在、出现或添加。此处使用的术语“或”和“和/或”被解释为包括性的，或意味着任一个或任何组合。因此，“A、B或C”或者“A、B和/或C”意味着“以下任一个：A；B；C；A和B；A和C；B和C；A、B和C”。仅当元件、功能、步骤或操作的组合在某些方式下内在地互相排斥时，才会出现该定义的例外。
虽然未不同地定义，但包括此处使用的技术术语及科学术语，所有术语均具有与本说明书所属技术领域的技术人员一般理解的意义相同的意义。普通使用的字典中定义的术语追加解释为具有与相关技术文献和当前提示的内容相符的意义，只要未进行定义，不得过度解释为理想的或非常公式性的意义。
针对现有技术中的问题，本发明提供了一种压缩机后壳组件及包括其 的涡旋压缩机，该压缩机后壳组件包括后壳本体和与所述后壳本体密封连接的安装板；所述后壳本体设置有一吸气口、气流通道和至少一第一气流通孔；当所述压缩机后壳组件用于压缩机时，所述后壳本体的一侧为冷媒腔，另一侧与所述安装板构成散热腔，所述散热腔通过所述气流通道与所述吸气口相连通；所述散热腔通过所述至少一第一气流通孔与所述冷媒腔相连通。
本发明的压缩机后壳组件在不改变压缩机外形结构和不增加额外冷却管路的情况下，通过合理利用其内部空间，通过增设一个与吸气口相连通的散热腔，该散热腔设有通往副轴承的油气通道，以及设置有与低压冷媒腔直接连接的气流通孔，包括上述后壳组件的涡旋压缩机将从吸气口进入的低温冷媒导流至后壳组件的散热腔内，此时低温的冷媒与控制器功率模块的安装板发生充分的对流换热，进而将控制器功率模块产生的废热带走；同时，散热腔还与副轴承腔室相连，冷媒流经副轴承腔室时可以起到对副轴承的冷却和散热作用，提高了控制器的能力范围，以及轴承的可靠性。本发明的压缩机无需改变其外形结构和增加额外冷却管路，吸气冷媒参与控制器冷却，且兼顾副轴承的冷却和润滑；具有冷却结构和密封结构简单，可靠性高等优点。
下面结合附图以及具体的实施例进一步阐述本发明的排气阀组件的结构和使用方法，可以理解的是，各个具体实施例不作为本发明的保护范围的限制。
图1为本发明的一实施例的后壳本体朝向安装板一侧的结构示意图，具体地，所述后壳本体1设置有一吸气口8和与所述吸气口8连通的气流通道81，所述后壳本体1还设置有多个第一气流通孔11。该实施例中，所述后壳本体设置有上部和下部的两个第一气流通孔11，用于与冷媒腔相连通；同时，所述后壳本体1的中部还设置有一第二气流通孔12，用于与压缩机的副轴承腔相连通。
图2为本发明的一实施例的安装板的结构示意图，在此实施例中，安装板2可以是一平板，安装板2与所述后壳本体1密封连接后，形成压缩机后壳组件，当所述压缩机后壳组件用于压缩机时，压缩机的后壳组件处的结构如图3所示，所述后壳本体1的一侧为冷媒腔83，另一侧与所述 安装板2形成散热腔82，所述散热腔82通过所述气流通道81与所述吸气口8相连通；所述散热腔82通过所述第一气流通孔11与所述冷媒腔83相连通。第一气流通孔11数量和形状等参数可以根据压缩机型号设定，使得从吸气口8。安装板2背离散热腔82的一侧可以装配控制器的功率模块，此时，低温低压的冷媒通过与安装板进行强对流换热的方式将热量带走，因此，安装板可以采用热传导系数比较高的铝合金材料或铜合金材料等金属制成。为了便于插装控制器的功率模块，所述安装板2背离所述散热腔的一侧可以设置有容置多个功率模块的多个卡槽，卡槽的结构不限，需注意的是，控制器的功率模块插入卡槽时，其散热面应与所述安装板2相抵触从能起到更好地起到通过散热腔散热的作用。
此实施例中，副轴承腔71通过所述第二气流通孔12与所述散热腔82相连通，使得从吸气孔吸入的冷媒在向压缩机低压冷媒腔流动同时对副轴承7进行冷却和润滑。
本发明压缩机后壳组件中，后壳本体1与安装板2密封连接。在一些实施例中，所述后壳本体1和所述安装板2可以通过密封组件和连接组件形成密封连接，具体地，所述密封组件可以包括一密封圈和一定位所述密封圈的密封槽，图3的实施例中，所述密封槽13设置于所述后壳本体1朝向所述安装板2的一端面。同样地，所述密封槽也可以设置于所述安装板的边缘2朝向所述后壳本体1的一端面。所述密封圈可以由弹性橡胶材料制成，如可以是为O型圈或者密封垫片等。密封组件和连接组件配合对后壳本体1与安装板2起到密封和固定的作用。
所述连接组件可以包括：多个螺栓孔14，设置于所述后壳本体1朝向所述安装板2的一端面；多个螺栓通孔21，设置于所述安装板2的边缘；多个螺栓212，每一螺栓212贯穿一所述螺栓通孔21并与所述螺栓孔14螺栓连接。后壳本体1与安装板2密封连接不限于上述方式，可以是焊接等密封连接方式。
本发明的压缩机后壳组件，后壳本体1上的气流通道81的一端与压缩机吸气口8相连，另一端与后壳本体1的散热腔82结构相连，将从吸气口8吸入的冷媒导流至散热腔82内，散热腔82是后壳本体1与安装板2通过密封组件和连接组件配合形成相对封闭的腔体，同时散热腔82设 有通往副轴承腔的第二气流通孔，以及必要的与低压冷媒腔直连的第一气流通孔，第一气流通孔可以是一个或者多个。
本发明还提供了一种涡旋压缩机，包括所述压缩机后壳组件，当然，上述涡旋压缩机还可以包括前壳、电机、静涡盘、动涡盘、副轴承7和后盖板9等零部件。图3为本发明的一实施例的压缩机后壳组件处的结构示意图，所述涡旋压缩机还包括至少一功率模块51，所述功率模块51设置于所述安装板2背离所述散热腔的一侧。功率模块51可以是一种IGBT(Insulated Gate Bipolar Transistor，绝缘栅双极型晶体管)功率模块，IGBT功率模块具有输入阻抗大，驱动功率小，控制电路简单，开关损耗小，通断速度快，工作频率高，元件容量大等优点。通常，功率模块具有一散热面，本发明的压缩机中，功率模块51的散热面需与所述安装板相抵触，所述涡旋压缩机还包括与所述至少一功率模块51电连接的控制器箱体52，至少一功率模块和控制器箱体等部件构成控制压缩机电机的控制器，控制器箱体52可以设置于后盖板9朝向所述后壳本体1的一侧，即设置于压缩机的腔体内。
当涡旋压缩机开始工作时，吸气口8吸入的冷媒通过气流通道81进入散热腔82，控制器的功率模块产生的热量通过热传导的方式传递至安装板2，低温低压的冷媒通过与安装板2进行强对流换热的方式将热量带走，之后换热完成的冷媒气体通过后壳本体的第一气体通孔11进入到压缩机的低压冷媒腔83中，在一些优选的实施例中，冷媒气体通过后壳本体的第二气体通孔12进入与副轴承7相连通的副轴承腔71，使得冷媒在向压缩机冷媒腔83流动的同时对副轴承进行冷却和润滑。
本发明的涡旋压缩机在不改变压缩机外形结构和不增加额外冷却管路的情况下，提供一种控制器的功率模块的冷却方法；吸入的冷媒参与控制器功率模块的冷却，且兼顾副轴承的冷却和润滑；具有结构简单、可控制器工作温度、压缩机失效概率低、整体性能可靠性高等优点，适用于作为车用压缩机使用。
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明，不能认定本发明的具体实施只局限于这些说明。对于本领域技术人员 而言，显然本申请不限于上述示范性实施例的细节，而且在不背离本申请的精神或基本特征的情况下，能够以其他的具体形式实现本申请。因此，无论从哪一点来看，均应将实施例看作是示范性的，而且是非限制性的，本申请的范围由所附权利要求而不是上述说明限定，因此旨在将落在权利要求的等同要件的含义和范围内的所有变化涵括在本申请内。不应将权利要求中的任何附图标记视为限制所涉及的权利要求。

Claims (10)

  1. 一种压缩机后壳组件，其特征在于，包括后壳本体和与所述后壳本体密封连接的安装板；
    所述后壳本体设置有一吸气口、气流通道和至少一第一气流通孔；
    当所述压缩机后壳组件用于压缩机时，所述后壳本体的一侧为冷媒腔，另一侧与所述安装板构成散热腔，所述散热腔通过所述气流通道与所述吸气口相连通；
    所述散热腔通过所述至少一第一气流通孔与所述冷媒腔相连通。
  2. 根据权利要求1所述的压缩机后壳组件，其特征在于，所述后壳本体还设置有至少一个第二气流通孔；
    至少一所述第二气流通孔与压缩机的副轴承腔相连通。
  3. 根据权利要求1所述的压缩机后壳组件，其特征在于，所述后壳本体和所述安装板通过密封组件和连接组件形成密封连接；
    所述密封组件包括一密封圈和一定位所述密封圈的密封槽，所述密封槽设置于所述后壳本体朝向所述安装板的一端面，或所述密封槽设置于所述安装板朝向所述后壳本体的一端面。
  4. 根据权利要求1所述的压缩机后壳组件，其特征在于，所述密封圈由弹性橡胶材料制成。
  5. 根据权利要求1所述的压缩机后壳组件，其特征在于，所述连接组件包括：多个螺栓孔，设置于所述后壳本体朝向所述安装板的一端面；
    多个螺栓通孔，设置于所述安装板的边缘；
    多个螺栓，每一螺栓贯穿一所述螺栓通孔并与所述螺栓孔螺栓连接。
  6. 根据权利要求1所述的压缩机后壳组件，其特征在于，所述安装板由铝合金材料或铜合金材料制成。
  7. 根据权利要求1所述的压缩机后壳组件，其特征在于，所述安装板背离所述散热腔的一侧设置有容置至少一功率模块的至少一卡槽。
  8. 一种涡旋压缩机，其特征在于，包括如权利要求1至7中任意一项所述的压缩机后壳组件。
  9. 根据权利要求8所述的涡旋压缩机，其特征在于，还包括至少一 功率模块，所述功率模块的散热面与所述安装板相抵触。
  10. 根据权利要求9所述的涡旋压缩机，其特征在于，还包括与所述至少一功率模块电连接的控制器箱体；
    所述控制器箱体设置于压缩机后盖板朝向所述后壳本体的一侧。
PCT/CN2023/092484 2022-06-28 2023-05-06 压缩机后壳组件及包括其的涡旋压缩机 WO2024001516A1 (zh)

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CN115324898A (zh) * 2022-09-20 2022-11-11 上海海立新能源技术有限公司 压缩机后壳体及包括其的涡旋压缩机
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