CN110118176A - A kind of screw compressor with delivery temperature protection - Google Patents
A kind of screw compressor with delivery temperature protection Download PDFInfo
- Publication number
- CN110118176A CN110118176A CN201910494428.9A CN201910494428A CN110118176A CN 110118176 A CN110118176 A CN 110118176A CN 201910494428 A CN201910494428 A CN 201910494428A CN 110118176 A CN110118176 A CN 110118176A
- Authority
- CN
- China
- Prior art keywords
- thermistor
- motor
- fixed scroll
- screw compressor
- temperature protection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- 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
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/008—Hermetic pumps
-
- 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
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
-
- 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
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/06—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids specially adapted for stopping, starting, idling or no-load operation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Rotary Pumps (AREA)
Abstract
本发明提供一种带排气温度保护的涡旋压缩机，涉及涡旋压缩机技术领域。该压缩机包括壳体、电机和静涡旋盘，还包括设置于壳体外的电机保护器，静涡旋盘的上部设置有安装孔，安装孔内设置有第一热敏电阻以使第一热敏电阻靠近静涡旋盘的排气口，电机内设置有第二热敏电阻，第一与第二热敏电阻连接并通过壳体上的密封接线端子与电机保护器连接，电机保护器的输出线连接至电机的电源接触器，在压缩机运行时，响应于第一与第二热敏电阻的总阻值超出预设范围，断开电机保护器的输出线，从而使电源接触器断开。通过设置感测排气口温度的第一热敏电阻，电机保护器响应于阻值变化使电源接触器断开，从而实现压缩机的排气温度保护，提高了压缩机的可靠性。
The invention provides a scroll compressor with discharge temperature protection and relates to the technical field of scroll compressors. The compressor includes a casing, a motor and a fixed scroll, and also includes a motor protector arranged outside the casing. An installation hole is arranged on the upper part of the fixed scroll, and a first thermistor is arranged in the installation hole so that the first The thermistor is close to the exhaust port of the fixed scroll, and a second thermistor is installed in the motor. The first and second thermistors are connected and connected to the motor protector through the sealed terminal on the housing. The motor protector The output line of the motor protector is connected to the power contactor of the motor. When the compressor is running, in response to the total resistance of the first and second thermistors exceeding the preset range, the output line of the motor protector is disconnected, so that the power contactor disconnect. By setting the first thermistor for sensing the temperature of the discharge port, the motor protector disconnects the power contactor in response to the change of the resistance value, thereby realizing the protection of the discharge temperature of the compressor and improving the reliability of the compressor.
Description
技术领域technical field
本发明涉及涡旋压缩机技术领域，具体涉及一种带排气温度保护的涡旋压缩机。The invention relates to the technical field of scroll compressors, in particular to a scroll compressor with discharge temperature protection.
背景技术Background technique
随着经济与技术的发展，涡旋压缩机广泛用于各个行业中。涡旋压缩机在对冷媒进行压缩时，冷媒温度会升高，过高的排气温度会降低润滑油的黏度，甚至造成润滑油碳化，使润滑油失去润滑能力。With the development of economy and technology, scroll compressors are widely used in various industries. When the scroll compressor compresses the refrigerant, the temperature of the refrigerant will rise. Excessively high discharge temperature will reduce the viscosity of the lubricating oil, and even cause the lubricating oil to carbonize, making the lubricating oil lose its lubricating ability.
为避免排气温度过高，压缩机系统通常在系统的排气管路上安装有温度传感器，当温度超过设定温度时，系统控制板对压缩机进行断电。但是，在这种情况下，系统必须配置系统控制板，从而限制了使用范围；另外，由于传热的限制，排气管路安装的温度传感器所感测到的温度通常与实际温度之间存在温差，造成不能及时保护。In order to prevent the exhaust temperature from being too high, the compressor system is usually equipped with a temperature sensor on the exhaust pipeline of the system. When the temperature exceeds the set temperature, the system control board will cut off the power of the compressor. However, in this case, the system must be equipped with a system control board, which limits the scope of use; in addition, due to the limitation of heat transfer, there is usually a temperature difference between the temperature sensed by the temperature sensor installed in the exhaust pipe and the actual temperature , resulting in failure to protect in time.
为此，专利CN1286358中公开了一种涡旋压缩机，其中在涡旋顶部设置有双金属热敏碟片，当排气区域温度过高时，热敏碟片变形，打开旁通气孔，通过热气通道将热气泄入压缩机内部，双金属型马达保护器感受到的温度超过设定值时，断开电机，实现保护。然而，热敏碟片在正常工作时应堵住旁通孔，但因热敏碟片为冲压件，精度不高，很难保证密封性，从而容易导致泄漏。对于大功率电机(例如，20KW以上)，通常没有内置排气温度保护器，该方案无法实现大功率压缩机的排气温度保护。For this reason, the patent CN1286358 discloses a scroll compressor, in which a bimetal thermal disc is arranged on the top of the scroll. The hot gas passage leaks the hot gas into the compressor, and when the temperature sensed by the bimetallic motor protector exceeds the set value, the motor is disconnected to realize protection. However, the heat-sensitive disc should block the bypass hole during normal operation, but because the heat-sensitive disc is a stamped part, the precision is not high, and it is difficult to ensure the sealing, which easily leads to leakage. For high-power motors (for example, above 20KW), there is usually no built-in discharge temperature protector, and this solution cannot realize the protection of discharge temperature of high-power compressors.
发明内容Contents of the invention
本发明的目的在于，针对上述现有技术中的不足，提供一种带排气温度保护的涡旋压缩机，以解决大功率压缩机的涡旋排气温度保护的问题。The purpose of the present invention is to provide a scroll compressor with discharge temperature protection to solve the problem of scroll discharge temperature protection of high-power compressors, aiming at the above-mentioned shortcomings in the prior art.
为实现上述目的，本发明采用的技术方案如下：To achieve the above object, the technical scheme adopted in the present invention is as follows:
本发明提供了一种带排气温度保护的涡旋压缩机，该涡旋压缩机包括：壳体、电机和静涡旋盘，电机和静涡旋盘设置于壳体内，涡旋压缩机还包括设置于壳体外的电机保护器，静涡旋盘的上部设置有安装孔，安装孔内设置有第一热敏电阻以使得第一热敏电阻靠近静涡旋盘的排气口，电机内设置有第二热敏电阻，第一热敏电阻与第二热敏电阻连接并且通过设置在壳体上的密封接线端子与电机保护器连接，电机保护器的输出线连接至电机的电源接触器，在涡旋压缩机运行时，电机保护器响应于第一热敏电阻与第二热敏电阻的总阻值超出预设范围，断开电机保护器的输出线，从而使得电机的电源接触器断开。The present invention provides a scroll compressor with discharge temperature protection. The scroll compressor includes: a casing, a motor and a fixed scroll, the motor and the fixed scroll are arranged in the casing, and the scroll compressor also Including the motor protector arranged outside the casing, the upper part of the fixed scroll is provided with a mounting hole, and the first thermistor is arranged in the mounting hole so that the first thermistor is close to the exhaust port of the fixed scroll, and the motor inside A second thermistor is provided, the first thermistor is connected to the second thermistor and is connected to the motor protector through a sealed terminal provided on the casing, and the output line of the motor protector is connected to the power contactor of the motor , when the scroll compressor is running, the motor protector disconnects the output line of the motor protector in response to the total resistance value of the first thermistor and the second thermistor exceeding the preset range, so that the power contactor of the motor disconnect.
可选地，第一热敏电阻与第二热敏电阻串联连接。Optionally, the first thermistor is connected in series with the second thermistor.
可选地，第一热敏电阻和第二热敏电阻均为正温度系数(PTC)热敏电阻，并且在涡旋压缩机运行时，电机保护器响应于第一热敏电阻与第二热敏电阻的总阻值大于预设值，断开电机保护器的输出线，从而使得电机的电源接触器断开。Optionally, both the first thermistor and the second thermistor are positive temperature coefficient (PTC) thermistors, and the motor protector responds to the first thermistor and the second thermistor when the scroll compressor is running. If the total resistance of the sensitive resistor is greater than the preset value, disconnect the output wire of the motor protector, thereby disconnecting the power contactor of the motor.
可选地，安装孔为在静涡旋盘的上部沿平行于静涡旋盘的盘体所在平面并且朝向盘体中心延伸的横孔。Optionally, the installation hole is a horizontal hole extending in the upper part of the fixed scroll parallel to the plane of the disk body of the fixed scroll and extending toward the center of the disk body.
可选地，静涡旋盘的排气口区域处还设置有竖孔，竖孔被设置成沿垂直于横孔的延伸方向延伸。Optionally, a vertical hole is further provided at the exhaust port area of the fixed scroll, and the vertical hole is arranged to extend along a direction perpendicular to the extending direction of the horizontal hole.
可选地，竖孔使得静涡旋盘的排气口与横孔流体连通。Optionally, the vertical hole fluidly communicates the discharge port of the fixed scroll with the horizontal hole.
可选地，在将第一热敏电阻设置在安装孔中之后，在安装孔的靠近静涡旋盘的外边缘处设置有密封件以及固定件，以对静涡旋盘的排气侧的高压冷媒和静涡旋盘的吸气侧的低压冷媒进行隔离。Optionally, after the first thermistor is arranged in the installation hole, a sealing member and a fixing member are provided at the outer edge of the installation hole close to the fixed scroll, so as to protect the exhaust side of the fixed scroll. The high-pressure refrigerant is isolated from the low-pressure refrigerant on the suction side of the fixed scroll.
可选地，第二热敏电阻设置在电机的线包内。Optionally, the second thermistor is arranged in the wire wrap of the motor.
可选地，电机为三相电机，并且三相电机中的每一相对应设置有一个第二热敏电阻。Optionally, the motor is a three-phase motor, and each of the three-phase motors is correspondingly provided with a second thermistor.
可选地，线包包括上线包和下线包，第二热敏电阻设置在当涡旋压缩机运行时上线包和下线包中温度较高的一个线包内。Optionally, the wire pack includes an upper wire pack and a lower wire pack, and the second thermistor is arranged in a wire pack with a higher temperature among the upper wire pack and the lower wire pack when the scroll compressor is running.
本发明的有益效果包括：The beneficial effects of the present invention include:
本发明提供的涡旋压缩机包括壳体、电机和静涡旋盘，电机和静涡旋盘设置于壳体内，涡旋压缩机还包括设置于壳体外的电机保护器，静涡旋盘的上部设置有安装孔，安装孔内设置有第一热敏电阻以使得第一热敏电阻靠近静涡旋盘的排气口，电机内设置有第二热敏电阻，第一热敏电阻与第二热敏电阻连接并且通过设置在壳体上的密封接线端子与电机保护器连接，电机保护器的输出线连接至电机的电源接触器，在涡旋压缩机运行时，电机保护器响应于第一热敏电阻与第二热敏电阻的总阻值超出预设范围，断开电机保护器的输出线，从而使得电机的电源接触器断开。通过设置感测静涡旋盘的排气口温度的第一热敏电阻，并且电机保护器响应于阻值变化断开输出线，进而使得电机的电源接触器断开，从而实现了涡旋压缩机的排气温度保护，提高了涡旋压缩机的可靠性。The scroll compressor provided by the present invention includes a casing, a motor and a fixed scroll, the motor and the fixed scroll are arranged in the casing, the scroll compressor also includes a motor protector arranged outside the casing, and the fixed scroll The upper part is provided with a mounting hole, and a first thermistor is provided in the mounting hole so that the first thermistor is close to the exhaust port of the fixed scroll, and a second thermistor is provided in the motor, and the first thermistor is connected to the second thermistor. The two thermistors are connected and connected to the motor protector through the sealed terminal provided on the shell, and the output line of the motor protector is connected to the power contactor of the motor. When the scroll compressor is running, the motor protector responds to the first When the total resistance of the first thermistor and the second thermistor exceeds the preset range, the output line of the motor protector is disconnected, so that the power contactor of the motor is disconnected. Scroll compression is achieved by setting the first thermistor to sense the temperature of the exhaust port of the fixed scroll, and the motor protector disconnects the output line in response to the resistance change, thereby disconnecting the power contactor of the motor. The exhaust temperature protection of the machine improves the reliability of the scroll compressor.
附图说明Description of drawings
为了更清楚地说明本发明实施例的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，应当理解，以下附图仅示出了本发明的某些实施例，因此不应被看作是对范围的限定，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相关的附图。In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and thus It should be regarded as a limitation on the scope, and those skilled in the art can also obtain other related drawings based on these drawings without creative work.
图1示出了本发明一实施例提供的带排气温度保护的涡旋压缩机的结构示意图；Fig. 1 shows a schematic structural view of a scroll compressor with discharge temperature protection provided by an embodiment of the present invention;
图2示出了PTC热敏电阻温度阻值曲线图；Fig. 2 shows the temperature resistance curve of PTC thermistor;
图3是本发明另一实施例提供的带排气温度保护的涡旋压缩机的局部结构示意图。Fig. 3 is a partial structural schematic diagram of a scroll compressor with discharge temperature protection provided by another embodiment of the present invention.
附图标记：1-壳体；2-电机；3-静涡旋盘；4-电机保护器；5-安装孔；6-第一热敏电阻；7-排气口；8-第二热敏电阻；9-密封接线端子；10-竖孔；11-密封件；12-固定件。Reference signs: 1-housing; 2-motor; 3-fixed scroll; 4-motor protector; 5-installation hole; 6-first thermistor; 7-exhaust port; 8-second heat Sensitive resistance; 9-sealed terminal; 10-vertical hole; 11-seal; 12-fixer.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
图1是本发明一实施例提供的带排气温度保护的涡旋压缩机的结构示意图，如图1所示，该涡旋压缩机包括：壳体1、电机2和静涡旋盘3，电机2和静涡旋盘3设置于壳体1内，涡旋压缩机还包括设置于壳体1外的电机保护器4，静涡旋盘3的上部设置有安装孔5，安装孔5内设置有第一热敏电阻6以使得第一热敏电阻6靠近静涡旋盘3的排气口7，电机2内设置有第二热敏电阻8，第一热敏电阻6与第二热敏电阻8连接并且通过设置在壳体1上的密封接线端子9与电机保护器4连接，电机保护器4的输出线连接至电机2的电源接触器，在涡旋压缩机运行时，电机保护器4响应于第一热敏电阻6与第二热敏电阻8的总阻值超出预设范围，断开电机保护器4的输出线，从而使得电机2的电源接触器断开。Fig. 1 is a structural schematic diagram of a scroll compressor with discharge temperature protection provided by an embodiment of the present invention. As shown in Fig. 1, the scroll compressor includes: a casing 1, a motor 2 and a fixed scroll 3, The motor 2 and the fixed scroll 3 are arranged in the casing 1, and the scroll compressor also includes a motor protector 4 arranged outside the casing 1. The upper part of the fixed scroll 3 is provided with a mounting hole 5, and inside the mounting hole 5 A first thermistor 6 is provided so that the first thermistor 6 is close to the exhaust port 7 of the fixed scroll 3, and a second thermistor 8 is arranged in the motor 2, and the first thermistor 6 and the second thermistor The sensitive resistor 8 is connected and connected with the motor protector 4 through the sealed terminal 9 arranged on the housing 1, and the output line of the motor protector 4 is connected to the power contactor of the motor 2. When the scroll compressor is running, the motor protector In response to the total resistance of the first thermistor 6 and the second thermistor 8 exceeding the preset range, the protector 4 disconnects the output line of the motor protector 4 , so that the power contactor of the motor 2 is disconnected.
具体地，由于第一热敏电阻6靠近静涡旋盘3的排气口7设置，因此当排气温度过高时，第一热敏电阻6的阻值会发生变化；同样，由于第二热敏电阻8设置在电机2内，因此当电机2工作异常而导致温度过高时，第二热敏电阻8的阻值也会发生变化。第一热敏电阻6与第二热敏电阻8连接后通过密封接线端子9与电机保护器4连接，因此当静涡旋盘3的排气温度或电机2的温度超过预设范围时，电机保护器4感受到该阻值变化，从而断开输出线，进而电机2的输入电源的接触器断开，使得电机2停止工作，在实现电机温度保护的同时，还实现了涡旋压缩机的排气温度保护，提高了涡旋压缩机的可靠性。Specifically, since the first thermistor 6 is arranged close to the exhaust port 7 of the fixed scroll 3, when the exhaust temperature is too high, the resistance value of the first thermistor 6 will change; The thermistor 8 is arranged in the motor 2, so when the motor 2 works abnormally and the temperature is too high, the resistance value of the second thermistor 8 will also change. After the first thermistor 6 is connected to the second thermistor 8, it is connected to the motor protector 4 through the sealed terminal 9, so when the exhaust temperature of the fixed scroll 3 or the temperature of the motor 2 exceeds the preset range, the motor The protector 4 senses the resistance change, thereby disconnecting the output line, and then the contactor of the input power supply of the motor 2 is disconnected, so that the motor 2 stops working. While realizing the temperature protection of the motor, it also realizes the protection of the scroll compressor. Exhaust temperature protection improves the reliability of the scroll compressor.
由于常规大功率压缩机具有电机保护器，采用本发明实施例提供的排气温度保护结构，可以有效利用常规大功率压缩机的电机保护器，在实现涡旋排气温度保护的同时，更加经济。Since the conventional high-power compressor has a motor protector, the discharge temperature protection structure provided by the embodiment of the present invention can effectively use the motor protector of the conventional high-power compressor, and it is more economical while realizing the scroll discharge temperature protection .
可选地，第一热敏电阻6与第二热敏电阻8串联连接。通过将第一热敏电阻6与第二热敏电阻8串联，相对于并联而言，可以提高总阻值对温度的敏感性。例如，第一热敏电阻6和第二热敏电阻8均为正温度系数(PTC)热敏电阻，图2示出了PTC热敏电阻温度阻值曲线图。当静涡旋盘3的排气温度或电机2的温度超过设定值时，PTC热敏电阻的阻值急剧增加，电机保护器4感受到的阻值超过设定值时，断开输出线，进而电机2的输入电源的接触器断开，使得电机2停止工作，在实现电机温度保护的同时，实现了涡旋压缩机的排气温度保护，提高了涡旋压缩机的可靠性。在常规工作温度范围内，由于PTC热敏电阻的阻值随温度变化剧烈，因此，通过本发明实施例提供的排气温度保护结构比常规技术的精度更高。Optionally, the first thermistor 6 and the second thermistor 8 are connected in series. By connecting the first thermistor 6 and the second thermistor 8 in series, compared with parallel connection, the sensitivity of the total resistance to temperature can be improved. For example, both the first thermistor 6 and the second thermistor 8 are positive temperature coefficient (PTC) thermistors, and FIG. 2 shows a temperature resistance curve of the PTC thermistors. When the exhaust temperature of the fixed scroll 3 or the temperature of the motor 2 exceeds the set value, the resistance of the PTC thermistor increases sharply, and when the resistance felt by the motor protector 4 exceeds the set value, the output line is disconnected , and then the contactor of the input power supply of the motor 2 is disconnected, so that the motor 2 stops working. While realizing the temperature protection of the motor, the discharge temperature protection of the scroll compressor is realized, and the reliability of the scroll compressor is improved. In the normal working temperature range, since the resistance of the PTC thermistor changes drastically with temperature, the exhaust gas temperature protection structure provided by the embodiment of the present invention has higher precision than the conventional technology.
可选地，安装孔5为在静涡旋盘3的上部沿平行于静涡旋盘3的盘体所在平面并且朝向盘体中心延伸的横孔。另外，如图3所示，静涡旋盘3的排气口7区域处还设置有竖孔10，竖孔10被设置成沿垂直于横孔的延伸方向延伸。竖孔10使得静涡旋盘3的排气口7与横孔流体连通。通过设置竖孔10，可以将排气口7排出的热气导入到第一热敏电阻6处，使得第一热敏电阻6感测到的温度更接近排气温度。在将第一热敏电阻6设置在安装孔5中之后，在安装孔5的靠近静涡旋盘3的外边缘处设置有密封件11以及固定件12，以对静涡旋盘3的排气侧的高压冷媒和静涡旋盘3的吸气侧的低压冷媒进行隔离。在图3中，第一热敏电阻6与第二热敏电阻8串联连接后接入电机保护器4。Optionally, the installation hole 5 is a horizontal hole extending in the upper part of the fixed scroll 3 along the plane parallel to the disk body of the fixed scroll 3 and extending toward the center of the disk body. In addition, as shown in FIG. 3 , a vertical hole 10 is provided at the area of the exhaust port 7 of the fixed scroll 3 , and the vertical hole 10 is set to extend along a direction perpendicular to the extension of the horizontal hole. The vertical hole 10 puts the exhaust port 7 of the fixed scroll 3 in fluid communication with the horizontal hole. By setting the vertical hole 10, the hot gas discharged from the exhaust port 7 can be introduced to the first thermistor 6, so that the temperature sensed by the first thermistor 6 is closer to the exhaust temperature. After the first thermistor 6 is arranged in the installation hole 5, a sealing member 11 and a fixing member 12 are provided at the outer edge of the installation hole 5 close to the fixed scroll 3 to prevent the displacement of the fixed scroll 3. The high-pressure refrigerant on the gas side is separated from the low-pressure refrigerant on the suction side of the fixed scroll 3 . In FIG. 3 , the first thermistor 6 and the second thermistor 8 are connected in series and connected to the motor protector 4 .
可选地，第二热敏电阻8设置在电机2的线包内。此时，第二热敏电阻8感测到的是线包的温度。可以在线包内埋入一个或多个PTC热敏电阻。例如，电机2为三相电机，在该情况下，三相电机中的每一相对应设置有一个PTC热敏电阻，避免三相不平衡造成的感温误差。可选地，线包包括上线包和下线包，第二热敏电阻8可以设置在上线包或下线包中，例如，设置在当涡旋压缩机运行时上线包和下线包中温度较高的一个线包内。Optionally, the second thermistor 8 is arranged in the wire wrap of the motor 2 . At this moment, what the second thermistor 8 senses is the temperature of the wire package. One or more PTC thermistors can be embedded within the wire pack. For example, the motor 2 is a three-phase motor. In this case, each of the three-phase motors is provided with a PTC thermistor to avoid temperature sensing errors caused by unbalanced three-phases. Optionally, the wire bag includes an upper wire bag and a lower wire bag, and the second thermistor 8 can be arranged in the upper wire bag or the lower wire bag, for example, the temperature in the upper wire bag and the lower wire bag can be set when the scroll compressor is running. Inside the higher one wire package.
上述实施例只为说明本发明的技术构思及特点，其目的在于让本领域普通技术人员能够了解本发明的内容并加以实施，并不能以此限制本发明的保护范围，凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围内。The above-described embodiments are only to illustrate the technical concept and characteristics of the present invention, and its purpose is to allow those of ordinary skill in the art to understand the content of the present invention and implement it, and cannot limit the protection scope of the present invention with this. All equivalent changes or modifications shall fall within the protection scope of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910494428.9A CN110118176A (en) | 2019-06-06 | 2019-06-06 | A kind of screw compressor with delivery temperature protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910494428.9A CN110118176A (en) | 2019-06-06 | 2019-06-06 | A kind of screw compressor with delivery temperature protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110118176A true CN110118176A (en) | 2019-08-13 |
Family
ID=67523958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910494428.9A Pending CN110118176A (en) | 2019-06-06 | 2019-06-06 | A kind of screw compressor with delivery temperature protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110118176A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113700649A (en) * | 2021-06-23 | 2021-11-26 | 上海海立新能源技术有限公司 | Compressor with built-in exhaust temperature protection system and control method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4820130A (en) * | 1987-12-14 | 1989-04-11 | American Standard Inc. | Temperature sensitive solenoid valve in a scroll compressor |
| US5368446A (en) * | 1993-01-22 | 1994-11-29 | Copeland Corporation | Scroll compressor having high temperature control |
| CN103267017A (en) * | 2013-06-06 | 2013-08-28 | 苏州英华特涡旋技术有限公司 | Scroll compressor with novel exhaust port structure and exhaust valve component |
| CN103573601A (en) * | 2012-07-27 | 2014-02-12 | 艾默生环境优化技术有限公司 | Compressor protection module |
| CN210087605U (en) * | 2019-06-06 | 2020-02-18 | 苏州英华特涡旋技术有限公司 | Scroll compressor with exhaust temperature protection |
-
2019
- 2019-06-06 CN CN201910494428.9A patent/CN110118176A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4820130A (en) * | 1987-12-14 | 1989-04-11 | American Standard Inc. | Temperature sensitive solenoid valve in a scroll compressor |
| US5368446A (en) * | 1993-01-22 | 1994-11-29 | Copeland Corporation | Scroll compressor having high temperature control |
| CN103573601A (en) * | 2012-07-27 | 2014-02-12 | 艾默生环境优化技术有限公司 | Compressor protection module |
| CN103267017A (en) * | 2013-06-06 | 2013-08-28 | 苏州英华特涡旋技术有限公司 | Scroll compressor with novel exhaust port structure and exhaust valve component |
| CN210087605U (en) * | 2019-06-06 | 2020-02-18 | 苏州英华特涡旋技术有限公司 | Scroll compressor with exhaust temperature protection |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113700649A (en) * | 2021-06-23 | 2021-11-26 | 上海海立新能源技术有限公司 | Compressor with built-in exhaust temperature protection system and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3278111A (en) | Device for detecting compressor discharge gas temperature | |
| US6454538B1 (en) | Motor protector in pocket on non-orbiting scroll and routing of wires thereto | |
| US6406266B1 (en) | Motor protector on non-orbiting scroll | |
| US5118260A (en) | Scroll compressor protector | |
| CN113701307B (en) | Refrigerant shortage protection control method for variable frequency air conditioner and air conditioner | |
| EP1733174A1 (en) | Monitoring refrigerant charge | |
| JP2008170052A (en) | Air conditioner | |
| JP3859976B2 (en) | Hermetic compressor and scroll compressor | |
| US4955795A (en) | Scroll apparatus control | |
| CN110118176A (en) | A kind of screw compressor with delivery temperature protection | |
| CN210087605U (en) | Scroll compressor with exhaust temperature protection | |
| CN1172413C (en) | Sealed compressor with temp. feed-back provided to motor protector | |
| US6171064B1 (en) | Reverse rotation detection for scroll compressor utilizing suction temperature | |
| CN101344082B (en) | Sealed compressor and freezing circulating device having the sealed compressor | |
| US6418740B1 (en) | External high pressure to low pressure valve for scroll compressor | |
| CN103362819A (en) | Compressor with temperature protecting device | |
| US7808363B1 (en) | Overheat protection for pump | |
| CN209838663U (en) | Soft starting device of compressor | |
| CN206801835U (en) | A kind of compressor protector | |
| CN218565150U (en) | Arrange damp system | |
| US7322806B2 (en) | Scroll compressor with externally installed thermostat | |
| JPH0634636Y2 (en) | Compressor protector | |
| JPH06159869A (en) | Air conditioner | |
| CN222910277U (en) | Scroll compressor | |
| JPH03279694A (en) | Vacuum unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 215500, No. 68, Southeast Avenue, Southeast Economic Development Zone, Suzhou, Jiangsu, Changshu Applicant after: Suzhou yinghuate Vortex Technology Co.,Ltd. Address before: 215500, No. 68, Southeast Avenue, Southeast Economic Development Zone, Suzhou, Jiangsu, Changshu Applicant before: SUZHOU INVOTECH SCROLL TECHNOLOGIES Co.,Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190813 |