Self-adaptive oil temperature control compressor and working method

Abstract

The invention provides a self-adaptive oil temperature control compressor and a working method, relates to the field of compressor temperature control, and aims to solve the problem that the oil temperature of refrigerator oil in a compressor is difficult to adapt to the running state of a refrigerator at present, the temperature of an internal refrigerator oil pool is measured through a built-in temperature control wire harness of a compressor body, and corresponding heating is performed according to set parameters. The superheated state is cooled in combination with the cooling box installed outside the compressor body, the oil temperature is adjusted in a real-time and self-adaptive mode, it is guaranteed that the viscosity and the lubricating performance of refrigerating machine oil meet the requirements, and the compressor can keep a good lubricating state under various working conditions.

Description

Technical Field

[0001] The invention relates to the field of compressor temperature control, and in particular to an adaptive oil temperature control compressor and a working method thereof. Background Art

[0002] During the operation of the refrigerator compressor, the oil temperature has an important impact on the performance and life of the compressor. The traditional refrigerator compressor oil temperature control method is relatively simple, and it is usually unable to make flexible adjustments according to the changes in the actual operating conditions of the refrigerator. When the refrigerator is in different ambient temperatures and different load conditions (such as frequent opening and closing of doors, large amounts of food storage), the working intensity and heat generated by the compressor vary greatly. If the oil temperature is too high, the viscosity of the refrigeration oil will decrease, the lubrication performance will deteriorate, the wear of the compressor parts will increase, and the efficiency and reliability of the compressor will be reduced; if the oil temperature is too low, the viscosity of the refrigeration oil will increase, the flow resistance will increase, and it will also affect the starting performance and operating efficiency of the compressor.

[0003] In the field of refrigerator compressors, there are also some relatively improved oil temperature control technologies, but they also have certain shortcomings: some improved technologies try to compensate the oil temperature control to a certain extent according to the ambient temperature. The principle is to detect the ambient temperature through the ambient temperature sensor. When the ambient temperature rises, the oil temperature setting value is appropriately lowered; when the ambient temperature decreases, the oil temperature setting value is appropriately increased. However, this solution only considers the single factor of ambient temperature, and does not comprehensively consider other key factors in the operation of the refrigerator, such as the working time of the compressor, the frequency of refrigerator door switching, and the load condition. For example, even if the ambient temperature is the same, the heat generation of the compressor and the demand for oil temperature are different in the two different situations of long-term continuous operation of the compressor and short-term intermittent operation of the compressor, but this solution cannot distinguish and effectively control this. Another similar technology is to simply divide the operating conditions of the refrigerator into several fixed stages, such as the startup stage, the normal operation stage, the defrost stage, etc., and set different oil temperature control target values ​​for each stage. For example, the oil temperature is quickly raised to 40°C in the startup stage, the oil temperature is kept between 45°C-50°C in the normal operation stage, and the oil temperature is appropriately lowered in the defrost stage to avoid excessive heat loss. However, this segmented control strategy relies too much on pre-set stage divisions and fixed target values, and lacks the ability to perceive and dynamically adjust the actual operating conditions in real time and accurately. The actual operation of the refrigerator is complex and changeable, and it is difficult to operate completely according to the pre-set stage mode. Once the actual operating conditions do not match the preset stage, the optimal oil temperature control effect cannot be achieved. In some special usage scenarios, such as frequent storage and retrieval of large quantities of food causing drastic temperature fluctuations inside the refrigerator, the working state of the compressor cannot be simply mapped to the preset stage, and this control strategy is difficult to deal with effectively. Summary of the invention

[0004] The purpose of the present invention is to provide an adaptive oil temperature control compressor and a working method to address the defects of the prior art. The temperature of the internal refrigeration oil pool is measured by a temperature control harness built into the compressor body, and corresponding heating is performed according to the set parameters. The overheated state is cooled in combination with a cooling box installed outside the compressor body, so as to achieve real-time and adaptive adjustment of the oil temperature, ensure that the viscosity and lubrication performance of the refrigeration oil meet the requirements, and enable the compressor to maintain a good lubrication state under various working conditions.

[0005] The first object of the present invention is to provide an adaptive oil temperature control compressor, which adopts the following scheme:

[0006] It includes a compressor body, a temperature control wiring harness and a cooling box. The cooling box exchanges heat with the compressor body shell. The temperature control wiring harness includes terminals, a temperature control switch and a heating element connected in sequence. The temperature control switch and the heating element are immersed in the refrigeration oil inside the compressor body. The temperature control switch is connected to the motor of the compressor body through the motor lead, and the terminal is connected to the sealed terminal of the compressor body. The temperature control switch is used to obtain the temperature of the refrigeration oil at the immersed position, and judge whether to start the motor or start the heating element based on the temperature value.

[0007] Furthermore, the temperature control switch and the heating element are distributed in the refrigeration oil pool at the bottom of the compressor body shell, and the terminals are connected to the temperature control switch through a connecting wire.

[0008] Furthermore, the heating element is an electric heating coil, which is sleeved outside the oil suction pipe of the compressor body and spaced apart from the oil suction pipe.

[0009] Furthermore, the cooling box includes an outer shell, and a partition is installed in the internal cavity of the outer shell to form a flow channel. One end of the flow channel is connected to an inlet, and the other end is connected to an outlet. The inlet and the outlet are connected to an external cold source to obtain cooling medium and discharge it after heat exchange with the compressor body shell. The external cold source is equipped with a cooling fan.

[0010] Furthermore, the cooling box is provided with a matching portion adapted to the top of the compressor body shell, and the cooling box is installed on the compressor body through the matching portion.

[0011] A second object of the present invention is to provide a working method of the adaptive oil temperature control compressor as described in the first object, comprising:

[0012] After the compressor control board outputs the start signal, it reaches the temperature control switch through the terminal on the temperature control harness;

[0013] The temperature control switch obtains the measured temperature of the refrigeration oil inside the compressor body, and makes judgments and executes according to the measured temperature;

[0014] When the measured temperature is lower than the first set temperature, the temperature control switch transmits current to the heating element to heat the refrigeration oil until the measured temperature is not lower than the first set temperature, and the heating element stops operating;

[0015] When the measured temperature is not lower than the first set temperature and not higher than the second set temperature, the temperature control switch transmits current to the motor of the compressor body to start the motor;

[0016] When the measured temperature is higher than the second set temperature, the temperature control switch sends a control signal to the control board, and the control board controls the cooling box to operate to cool the compressor body until the measured temperature is no higher than the second set temperature.

[0017] Furthermore, when the measured temperature is lower than / not lower than the first set temperature and continues for a set time, the heating element starts / stops running; when the measured temperature is higher than / not higher than the second set temperature and continues for a set time, the cooling box starts / stops running.

[0018] Furthermore, when the heating element is in operation, the heating element heats the refrigeration oil pool at the bottom of the compressor body shell until it reaches a set temperature.

[0019] Furthermore, the cooling box is connected to an external cold source. When the cooling box is running, the cooling medium enters the cooling box to perform heat exchange with the compressor body, thereby cooling the compressor body from the outside.

[0020] Furthermore, according to the operating environment of the compressor body, the first set temperature and the second set temperature are selected and adjusted.

[0021] Compared with the prior art, the present invention has the following advantages and positive effects:

[0022] In view of the current problem that the refrigeration oil temperature in the compressor is difficult to adapt to the operating status of the refrigerator, the temperature of the internal refrigeration oil pool is measured through the temperature control harness built into the compressor body, and corresponding heating is performed according to the set parameters. The overheating state is cooled by the cooling box installed outside the compressor body, and the oil temperature is adjusted in real time and adaptively to ensure that the viscosity and lubrication performance of the refrigeration oil meet the requirements, so that the compressor can maintain a good lubrication state under various working conditions.

[0023] The heat transfer medium circulates in the cooling box, which is installed on the top of the compressor body. Its internal structure (such as the exchange channel formed by the partition and the shell) provides a path for heat exchange. The heat generated by the compressor is transferred to the cooling box through heat exchange with the heat transfer medium. Corresponding heat dissipation elements such as fans are configured for the external cold source to realize air-cooled circulation. The air-cooled circulation increases the circulating air volume by increasing the fan speed, thereby accelerating the dissipation of heat to the surrounding environment. Through the synergistic effect of heat circulation and air-cooled circulation, the heat of the compressor can be quickly taken away, thereby reducing the temperature of the refrigeration oil inside the compressor, keeping the oil temperature within a reasonable range, avoiding problems such as decreased viscosity of the lubricating oil, deterioration of lubrication performance, and increased wear of compressor parts due to excessively high oil temperature, effectively ensuring the performance, reliability and service life of the compressor.

[0024] The present invention adopts the method of measuring temperature and heating by the temperature control harness inside the compressor body shell and cooling the outside of the compressor body shell to control the temperature. The temperature control switch can be immersed in the refrigeration oil to directly measure the temperature. The internal temperature measurement can obtain the temperature information of the refrigeration oil inside the compressor more directly and accurately, avoiding the errors and delays that may exist in the external temperature measurement, so that the oil temperature can be controlled more accurately. By arranging a heating element inside the compressor, the heating can be more directly and quickly applied to the refrigeration oil, reducing the loss during the heat transfer process and improving the heating efficiency. The heat cycle utilizes the external input heat transfer medium to flow in the cooling box to dissipate heat. The heat generated by the compressor can be quickly taken away through the heat exchange between the external cooling box and the compressor body shell, thereby effectively reducing the temperature of the refrigeration oil inside the compressor, and controlling the oil temperature in real time and adaptively to ensure that the compressor is well lubricated under various working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0026] Figure 1 Schematic diagram of the internal structure of an adaptive oil temperature control compressor in one or more embodiments of the present invention.

[0027] Figure 2 Schematic diagram of a temperature control harness in one or more embodiments of the present invention.

[0028] Figure 3 Schematic diagram of a cooling box in one or more embodiments of the present invention.

[0029] Figure 4 Schematic diagram of the structure of an adaptive oil temperature control compressor in one or more embodiments of the present invention.

[0030] Among them, 1. compressor body; 2. temperature control wiring harness; 3. cooling box; 21. terminal; 22. connecting wire; 23. heating element; 24. motor lead; 25. temperature control switch; 31. inlet; 32. outlet; 33. partition; 34. outer shell. DETAILED DESCRIPTION

[0031] Example 1

[0032] In a typical embodiment of the present invention, Figure 1-Figure 4 As shown, an adaptive oil temperature control compressor is given.

[0033] There are deficiencies in the existing refrigerator compressor oil temperature control technology. For example, the solution based on ambient temperature compensation only considers a single factor and cannot distinguish the differences in oil temperature requirements due to different compressor working hours, refrigerator door opening and closing frequencies, and load conditions; the segmented control strategy relies on fixed stage divisions and target values, lacks the ability to accurately perceive and dynamically adjust the actual complex and changeable operating conditions in real time, and cannot achieve optimal oil temperature control under special conditions, making it difficult to ensure that the compressor is well lubricated under various conditions. Based on this, an adaptive oil temperature control compressor is provided in this embodiment, which uses the temperature control harness inside the compressor body 1 shell to measure and heat the temperature, and the compressor body 1 shell is cooled externally to control the temperature, so as to achieve real-time and adaptive control of the oil temperature and ensure that the compressor is well lubricated under various conditions.

[0034] It should be noted that most traditional refrigerator compressor oil temperature control relies on fixed temperature set points. For example, it is common to control the oil temperature near a single temperature point, such as 50°C. This method does not take into account the huge differences in the operating conditions of refrigerators in different usage scenarios. The use environment of refrigerators varies greatly, and the ambient temperature can vary greatly from low temperatures in cold winter to high temperatures in hot summer. In hot summer, the ambient temperature may be as high as 35°C or even higher. At this time, the refrigerator compressor needs to work harder to maintain a low temperature environment, and the heat generated increases significantly. If it is still controlled according to the fixed 50°C oil temperature, the actual oil temperature of the compressor can easily exceed this temperature due to untimely heat dissipation, resulting in deterioration of lubricating oil performance, reduced lubrication effect, increased wear between compressor parts, and seriously affecting the service life and performance of the compressor. In cold winter, the ambient temperature may be as low as 0°C or below, and the oil temperature is low when the compressor starts, the lubricating oil has high viscosity and poor fluidity. The fixed oil temperature control method cannot quickly raise the oil temperature to the appropriate range during the startup phase, making it difficult to start the compressor, and the starting current is too large, which not only increases energy consumption, but also may cause damage to the compressor motor.

[0035] During the use of the refrigerator, the frequency of opening and closing the door has a significant impact on the internal temperature stability and the working state of the compressor. When the user frequently opens and closes the refrigerator door, a large amount of cold air in the refrigerator is lost, and the compressor needs to start more frequently and run for a long time to restore the low temperature environment. However, the traditional oil temperature control method does not take the key factor of the frequency of opening and closing the door into consideration. In addition, the different quantities and types of food stored in the refrigerator will also lead to different load conditions of the refrigerator. When storing a large amount of food with large heat capacity, such as fresh meat, a large amount of fruits and vegetables, etc., the compressor needs to consume more energy to cool, and the heat generated will also increase accordingly. However, the traditional oil temperature control method cannot make targeted adjustments based on these load changes, and it is difficult to ensure that the compressor can be in the best operating state under various load conditions.

[0036] In this embodiment, Figure 1 As shown, the adaptive oil temperature control compressor includes a compressor body 1, a temperature control harness and a cooling box 3. The temperature control harness consists of a terminal 21, a temperature control switch 25 and a heating element, and the temperature control switch 25 and the heating element are immersed in the refrigeration oil, the terminal 21 is connected to the sealed terminal, and the temperature control switch 25 is connected to the motor through the motor lead 24. Through this structure, the temperature of the refrigeration oil is directly obtained by using the temperature control switch 25, and it is determined whether to start the motor or the heating element according to the temperature value, so as to achieve preliminary control of the oil temperature; in terms of cooling, the cooling box 3 exchanges heat with the shell of the compressor body 1, and cools the compressor when the oil temperature is too high, thereby adjusting the oil temperature.

[0037] The temperature control harness has its terminal 21 connected to the sealed terminal of the compressor body 1, which serves to connect the external control signal with the internal components; the temperature control switch 25 and the heating element are immersed in the refrigeration oil inside the compressor body 1. The temperature control switch 25 can directly sense the temperature change of the refrigeration oil and provide a data basis for controlling the entire oil temperature regulation process. When the temperature is in different ranges, the temperature control switch 25 can control the flow of current as a controller. Under the control of the temperature control switch 25, the heating element heats the refrigeration oil to increase the oil temperature. The temperature control switch 25 is also connected to the motor of the compressor body 1 through the motor lead 24. When the oil temperature reaches the appropriate range, it can start the motor to make the compressor run normally.

[0038] like Figure 4 As shown, the cooling box 3 exchanges heat with the shell of the compressor body 1. When the oil temperature is higher than a certain temperature (such as 50°C, 60°C, etc.), the cooling box 3 will start working under the control of the external controller. A heat transfer medium flows inside the cooling box 3, which takes away the heat of the compressor through heat exchange, cools the compressor and the internal refrigeration oil, ensures that the oil temperature is kept within a reasonable range, and prevents the compressor from being damaged by excessive oil temperature.

[0039] This embodiment can adjust the oil temperature in real time and adaptively, ensuring that the viscosity and lubrication performance of the refrigeration oil meet the requirements of the compressor under various working conditions, so that the compressor remains in a good lubrication state, and effectively solves the problem of poor oil temperature control under different working conditions in the prior art affecting the performance of the compressor, thereby improving the reliability and service life of the compressor, and thus helping to improve the overall performance and stability of the refrigerator.

[0040] like Figure 1 and Figure 2 As shown, the temperature control switch 25 and the heating element are located in the refrigeration oil pool at the bottom of the compressor body 1, so that the heating element and the temperature control switch 25 can directly contact the refrigeration oil. Since the bottom of the shell is the area where the refrigeration oil gathers, the oil temperature change can be more accurately sensed here, and the oil temperature can be quickly affected.

[0041] The terminal 21 is connected to the temperature control switch 25 via the connecting line 22, which ensures that the external control signal can be stably transmitted to the temperature control switch 25, so that the temperature control switch 25 can control the heating element and the motor according to the set logic.

[0042] like Figure 1 As shown, the heating element adopts an electric heating ring 23 and is sleeved outside the oil suction pipe of the compressor body 1, and is spaced apart from the oil suction pipe. The space around the oil suction pipe is utilized, and when heating, the heat can be quickly diffused through the refrigeration oil around the oil suction pipe. At the same time, the spacing distribution with the oil suction pipe can avoid affecting the normal operation of the oil suction pipe or causing local overheating due to excessive proximity, ensuring the uniformity and safety of the heating process, and effectively raising the oil temperature, especially in the initial stage of compressor startup or in a low temperature environment, and can quickly make the oil temperature reach a suitable working range.

[0043] like Figure 3 As shown, a partition 33 is installed in the inner cavity of the outer shell 34 of the cooling box 3 to form a flow channel, one end of the flow channel is connected to the inlet 31, and the other end is connected to the outlet 32, and the inlet 31 and the outlet 32 ​​are connected to an external cold source. The cooling medium (such as water or refrigerant, etc.) provided by the external cold source flows in the flow channel, exchanges heat with the shell of the compressor body 1, takes away the heat generated by the compressor, and realizes cooling.

[0044] The external cold source can adopt a structure of a water tank combined with a water pump. One end of the water pump is connected to the water tank, and the other end is connected to the inlet 31. One end of the outlet 32 ​​is connected to the water tank through a water pipe to realize the reflux of the cooling medium. In order to improve the heat dissipation efficiency, a radiator can be connected in series on the water pipe, or a cooling fan can be installed on the water tank to accelerate the heat dissipation of the cooling medium and improve the cooling efficiency, ensuring that the cooling box 3 can respond to the overheating of the compressor in a timely and effective manner and maintain the oil temperature within a reasonable range.

[0045] Specifically, Figure 1 and Figure 4As shown, the cooling box 3 is provided with a matching portion adapted to the top of the compressor body 1 shell, and is installed on the compressor body 1 through the matching portion, which facilitates the installation and removal of the cooling box 3, and is convenient for maintenance and repair. At the same time, installing it on the top is conducive to the natural rise of heat into the cooling box 3 for exchange, which conforms to the principle of heat transfer and improves the overall performance of the cooling system.

[0046] It should be pointed out that the temperature is controlled by measuring the temperature and heating the temperature control harness inside the shell of the compressor body 1 and cooling the outside of the shell of the compressor body 1. The temperature control switch 25 can be immersed in the refrigeration oil to directly measure the temperature. The internal temperature measurement can more directly and accurately obtain the temperature information of the refrigeration oil inside the compressor, avoiding the errors and delays that may exist in the external temperature measurement, so that the oil temperature can be controlled more accurately; by arranging a heating element inside the compressor, the heating can be more directly and quickly applied to the refrigeration oil, reducing the loss during the heat transfer process and improving the heating efficiency; the heat cycle utilizes the external input heat transfer medium to flow in the cooling box 3 to dissipate heat, and the heat generated by the compressor can be quickly taken away by exchanging heat with the shell of the compressor body 1 through the external cooling box 3, thereby effectively reducing the temperature of the refrigeration oil inside the compressor, and controlling the oil temperature in real time and adaptively to ensure that the compressor is well lubricated under various working conditions.

[0047] In addition, after the temperature control harness is integrated into the compressor body 1, in terms of temperature detection accuracy, the internal integration can directly contact the refrigeration oil, avoiding the interference of external environmental factors on temperature measurement, such as external temperature changes, thermal radiation, etc., and can more accurately reflect the actual temperature of the refrigeration oil, providing a reliable basis for subsequent control. In addition, in terms of response timeliness, internal integration shortens the signal transmission path. When the oil temperature changes, the temperature control switch 25 can sense and respond more quickly, quickly start heating or stop heating and other operations. Compared with external installation, the oil temperature can be adjusted more timely to ensure the stable operation of the compressor under various working conditions. Furthermore, from the perspective of system stability, external connection components and lines are reduced, the risk of failure caused by external factors (such as vibration, moisture, electromagnetic interference, etc.) is reduced, the stability and reliability of the entire oil temperature control system are improved, and it helps to extend the service life of the compressor.

[0048] Example 2

[0049] In another typical embodiment of the present invention, Figure 1-Figure 4 As shown, a working method of an adaptive oil temperature control compressor is provided, using the adaptive oil temperature control compressor as in Example 1.

[0050] A working method of a self-adaptive oil temperature control compressor, comprising:

[0051] After the compressor control board outputs the start signal, it reaches the temperature control switch 25 through the terminal 21 on the temperature control harness;

[0052] The temperature control switch 25 obtains the measured temperature of the refrigeration oil inside the compressor body 1, and makes judgments and executes according to the measured temperature;

[0053] When the measured temperature is lower than the first set temperature, the temperature control switch 25 transmits current to the heating element to heat the refrigeration oil until the measured temperature is not lower than the first set temperature, and the heating element stops operating;

[0054] When the measured temperature is not lower than the first set temperature and not higher than the second set temperature, the temperature control switch 25 transmits current to the motor of the compressor body 1 to start the motor;

[0055] When the measured temperature is higher than the second set temperature, the temperature control switch 25 sends a control signal to the control board, and the control board controls the cooling box 3 to operate to cool the compressor body 1 until the measured temperature is no higher than the second set temperature.

[0056] The whole working method starts the control process around the judgment of the temperature of the refrigeration oil measured by the temperature control switch 25. When the compressor control board outputs the start signal, it can be quickly transmitted to the temperature control switch 25 through the temperature control harness to ensure the rapid response of the system.

[0057] In the temperature judgment link, two key temperature thresholds are set, the first set temperature and the second set temperature, to form different working ranges. In the low temperature range below the first set temperature, the temperature control switch 25 starts the heating element, heats the refrigeration oil pool at the bottom of the compressor body 1 shell, and utilizes the fluidity and thermal conductivity of the refrigeration oil in the bottom oil pool to evenly diffuse the heat and increase the oil temperature. When in a suitable temperature range not lower than the first set temperature and not higher than the second set temperature, the temperature control switch 25 switches the current to the motor to start the compressor, thereby achieving an effective connection between the oil temperature and the start of the compressor. In the high temperature range above the second set temperature, the temperature control switch 25 sends a signal to the control panel to start the cooling box 3, and the cooling box 3 is connected to the external cold source. The cooling medium exchanges heat with the compressor body 1, effectively reducing the compressor temperature from the outside, forming a complete temperature control closed loop.

[0058] In this embodiment, taking the first set temperature as 40°C and the second set temperature as 60°C as an example, when the control board of the compressor outputs a start signal, it reaches the temperature control switch 25 through the terminal 21 and the connecting wire 22 on the temperature control harness 2, and the temperature control switch 25 determines and controls the temperature of the refrigeration oil.

[0059] If the temperature is between 40°C and 60°C, the electrical signal flows to the motor lead 24 to the motor, and the compressor starts to run; if the temperature is below 40°C, the electrical signal flows to the heating element, and the heating element heats the refrigeration oil until the refrigeration oil temperature is above 40°C;

[0060] When the oil temperature is higher than 60°C, the temperature control switch 25 transmits a signal to the external controller of the compressor using the temperature control harness 2. The external controller can control the water pump or the refrigerant switch to make the heat transfer medium run in the cooling box 3. Specifically, when the switch is turned on, the heat transfer medium enters from the inlet 31 and flows in the heat exchange channel formed by the partition 33 and the shell 34. The heat of the compressor is cooled and reduced through heat exchange, and the fan speed is increased to increase the circulating air volume.

[0061] When the oil temperature is lower than 60° C., the cooling box 3 stops running, the heat exchange of the cooling box 3 stops, and the fan speed decreases.

[0062] In this embodiment, in order to avoid frequent start and stop of the heating element or the cooling box 3, a delay judgment mechanism is set. When the measured temperature is lower than / not lower than the first set temperature and lasts for a set time, the heating element starts / stops; when the measured temperature is higher than / not higher than the second set temperature and lasts for a set time, the cooling box 3 starts / stops.

[0063] Specifically, when the measured temperature is decreasing from a state greater than a first set temperature, the measured temperature is lower than the first set temperature and continues for a set time, the heating element starts to operate; when the measured temperature is rising from a state less than the first set temperature, the measured temperature is not lower than the first set temperature and continues for a set time, the heating element stops operating.

[0064] When the measured temperature decreases from a state greater than the second set temperature, the measured temperature is lower than the second set temperature and continues for a set time, the cooling box 3 stops running; when the measured temperature rises from a state less than the second set temperature, the measured temperature is not lower than the second set temperature and continues for a set time, the cooling box 3 runs.

[0065] In this embodiment, the delayed judgment mechanism is used to avoid frequent misoperations caused by instantaneous temperature fluctuations. For example, when the temperature is close to the threshold, the temperature may fluctuate slightly due to a short-term change in the working condition of the compressor. If there is no delayed judgment, the heating element or the cooling box 3 will start and stop frequently, which will not only affect the life of the equipment, but also cause energy waste and unstable oil temperature control. By setting the continuous judgment of the time, it is ensured that the operation is performed only when the temperature is indeed stable in the corresponding range, thereby improving the stability and reliability of the system.

[0066] According to the operating environment of the compressor body 1, select and adjust the first set temperature and the second set temperature. Keep the second set temperature greater than the first set temperature. The first set temperature can be 40°C, 45°C, 50°C, etc., and the second set temperature can be 55°C, 60°C, 65°C, etc., which fully considers the needs of the compressor under different working conditions. In high temperature environment or high load operation, the first set temperature can be appropriately increased to reduce the heating frequency, and the second set temperature can be lowered at the same time to start cooling in advance to prevent the oil temperature from being too high. In low temperature environment or low load, the first set temperature can be lowered to ensure the smooth start of the compressor, and the second set temperature can be increased to reduce unnecessary start-up of the cooling box 3, thereby realizing the adaptability and precision of oil temperature control and improving the performance and efficiency of the compressor under various complex working conditions.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An adaptive oil temperature control compressor, characterized in that: It includes a compressor body, a temperature control wiring harness and a cooling box. The cooling box exchanges heat with the compressor body shell. The temperature control wiring harness includes terminals, a temperature control switch and a heating element connected in sequence. The temperature control switch and the heating element are immersed in the refrigeration oil inside the compressor body. The temperature control switch is connected to the motor of the compressor body through the motor lead, and the terminal is connected to the sealed terminal of the compressor body. The temperature control switch is used to obtain the temperature of the refrigeration oil at the immersed position, and judge whether to start the motor or start the heating element based on the temperature value.

2. The adaptive oil temperature control compressor according to claim 1, characterized in that: The temperature control switch and the heating element are distributed in the refrigerator oil pool at the bottom of the compressor body shell, and the terminals are connected to the temperature control switch through connecting wires.

3. The adaptive oil temperature control compressor according to claim 2, characterized in that: The heating element is an electric heating coil, which is sleeved outside the oil suction pipe of the compressor body and spaced apart from the oil suction pipe.

4. The adaptive oil temperature control compressor according to claim 1, characterized in that: The cooling box includes an outer shell, and a partition is installed in the inner cavity of the outer shell to form a flow channel. One end of the flow channel is connected to an inlet, and the other end is connected to an outlet. The inlet and the outlet are connected to an external cold source to obtain cooling medium and discharge it after heat exchange with the compressor body shell.

5. The adaptive oil temperature control compressor according to claim 1 or 4, characterized in that: The cooling box is provided with a matching portion adapted to the top of the compressor body shell, and the cooling box is installed on the compressor body through the matching portion.

6. A method for operating an adaptive oil temperature control compressor, using the adaptive oil temperature control compressor as claimed in any one of claims 1 to 5, characterized in that: include: After the compressor control board outputs the start signal, it reaches the temperature control switch through the terminal on the temperature control harness; The temperature control switch obtains the measured temperature of the refrigeration oil inside the compressor body, and makes judgments and executes according to the measured temperature; When the measured temperature is lower than the first set temperature, the temperature control switch transmits current to the heating element to heat the refrigeration oil until the measured temperature is not lower than the first set temperature, and the heating element stops operating; When the measured temperature is not lower than the first set temperature and not higher than the second set temperature, the temperature control switch transmits current to the motor of the compressor body to start the motor; When the measured temperature is higher than the second set temperature, the temperature control switch sends a control signal to the control board, and the control board controls the cooling box to operate to cool the compressor body until the measured temperature is no higher than the second set temperature.

7. The operating method of the adaptive oil temperature control compressor according to claim 6, characterized in that: When the measured temperature is lower than / not lower than the first set temperature and lasts for a set time, the heating element starts / stops running; when the measured temperature is higher than / not higher than the second set temperature and lasts for a set time, the cooling box starts / stops running.

8. The operating method of the adaptive oil temperature control compressor according to claim 7, characterized in that: When the heating element is running, the heating element heats the refrigeration oil pool at the bottom of the compressor body shell until it reaches the set temperature.

9. The operating method of the adaptive oil temperature control compressor according to claim 7, characterized in that: The cooling box is connected to an external cold source. When the cooling box is running, the cooling medium enters the cooling box to exchange heat with the compressor body, thereby cooling the compressor body from the outside.

10. The operating method of the adaptive oil temperature control compressor according to claim 6, characterized in that: According to the operating environment of the compressor body, the first set temperature and the second set temperature are selected and adjusted.

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