CN115711170A - Heat exchange structure suitable for motor pump - Google Patents
Heat exchange structure suitable for motor pump Download PDFInfo
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- CN115711170A CN115711170A CN202211283275.1A CN202211283275A CN115711170A CN 115711170 A CN115711170 A CN 115711170A CN 202211283275 A CN202211283275 A CN 202211283275A CN 115711170 A CN115711170 A CN 115711170A
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Abstract
The invention relates to a heat exchange structure suitable for a motor pump, which comprises a motor pump shell, an outer shell, a motor heat exchange sheath, a fixed sleeve, a movable sleeve, a piston and a spring, wherein the motor pump shell is fixedly connected with the outer shell; the device leads a high-pressure fluid from the outlet of the liquid cooling pump to enter the pressurizing cavity through the spiral channel formed by the motor shell and the cylinder body, the pressurizing cavity is gradually filled with working media, and air in the pressurizing cavity is discharged through the pipeline, so that the condition that the air in the pressurizing cavity is brought into the system when the system media circulates is avoided, the system function is reduced, and the liquid cooling pump is subjected to cavitation erosion. When the gas in the pressurizing cavity is exhausted, the working medium can enter the low-pressure cavity from the high-pressure cavity through the pipeline. The medium can take away the heat that the motor work in-process produced high-efficiently at the flow in-process to avoid the motor to high temperature for a long time and reduce its reliability. Meanwhile, the high-pressure liquid in the pressurizing cavity and the elastic force of the spring are utilized to pressurize the piston at the same time, so that the pressure of the inlet of the liquid cooling pump is ensured, and the liquid cooling pump is prevented from cavitation erosion.
Description
Technical Field
The invention relates to the technical field of aircraft liquid cooling systems, and particularly discloses a heat exchange structure suitable for a motor pump, and particularly relates to a temperature self-adaptive structure capable of being realized.
Background
In recent years, with the rapid increase of the heat load of airplane electronic equipment, a liquid cooling system is more and more applied because a liquid medium of the liquid cooling system has higher heat exchange coefficient and specific heat compared with air, and the cooling efficiency and stability are higher. Liquid supply assemblies are widely used as core components of liquid cooling systems. The traditional liquid supply assembly structure mainly has the following defects:
insufficient exhaust capacity: the pressurizing cavity of the traditional liquid supply assembly structure is free of an exhaust structure, and when a product works, air in the pressurizing cavity can be brought into the system, so that the performance of the product is reduced, cavitation erosion of the liquid cooling pump can be caused, and the service life of the liquid cooling pump is shortened.
The heat dissipation capability of the motor is insufficient: when the power of the liquid cooling pump in the liquid supply assembly is larger, the heat dissipation fins are generally added on the motor of the liquid cooling pump, and the heat dissipation effect is enhanced by increasing the heat dissipation area, but the heat dissipation area also has the defect of increasing the weight and the volume.
The size is bigger: conventional liquid supply assembly liquid cooled pump configurations are typically disposed outside of the expansion tank housing (or filter housing), which can result in a liquid supply assembly that is bulky and heavy.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: 1. the pressurizing cavity exhaust structure is provided, so that air in a system is exhausted, and cavitation erosion and performance degradation of a liquid cooling pump are prevented;
2. a novel liquid-cooled pump layout mode is provided to achieve the purpose of reducing the volume and the weight of the liquid supply assembly.
3. The motor heat dissipation structure can quickly take away heat power consumption of the motor, ensure that the motor is in a proper temperature range, and improve the reliability of the liquid supply assembly.
4. The temperature self-adaptive structure is provided, and normal work of products in a full-temperature envelope range can be guaranteed.
The technical scheme of the invention is as follows:
providing a heat exchange structure suitable for a motor pump, namely a motor pump shell, an outer shell, a motor heat exchange sheath, a fixed sleeve, a movable sleeve, a piston and a spring;
the outer shell, the piston sleeve, the fixed sleeve and the motor heat exchange sheath are sequentially arranged from outside to inside; the same ends of the outer shell, the piston sleeve, the fixed sleeve and the motor heat exchange sheath are fixed with the motor pump shell into a whole;
the outer shell is positioned outside the piston sleeve, an oil return cavity is formed between the outer shell and the piston sleeve, and the oil return cavity is communicated with a low-pressure cavity of a motor pump shell; the fixed sleeve is positioned outside the motor heat exchange sheath, and a heat dissipation oil return channel is formed between the fixed sleeve and the motor heat exchange sheath; the piston sleeve is positioned outside the fixed sleeve and the movable sleeve, and a piston cavity is formed among the piston sleeve, the fixed sleeve and the movable sleeve; a pump motor is arranged in the motor heat exchange jacket;
the piston is positioned in the piston cavity and divides the piston cavity into a gas cavity and a liquid cavity, the liquid cavity is communicated with the oil return cavity, and the gas cavity is communicated with an external gas environment;
the movable sleeve is of a cylinder structure with an opening at one side, the movable sleeve is sleeved on the outer wall of the fixed sleeve and is in sliding sealing fit with the fixed sleeve, the spring is arranged in the movable sleeve, and the spring is elastically arranged between the motor heat exchange sleeve and the movable sleeve; the wall of the motor heat exchange sheath is provided with a spiral channel, one end of the spiral channel is communicated with a high-pressure cavity of the motor pump shell, the other end of the spiral channel is communicated into the movable sleeve, and the heat dissipation oil return channel is communicated with a low-pressure cavity of the motor pump in the movable sleeve;
when the motor pump runs, part of liquid in the high-pressure cavity can pass through the spiral channel flow passage movable sleeve and then return to the low-pressure cavity through the heat dissipation oil return channel; when the temperature of the low-pressure cavity rises, the liquid expands to enable the piston to slide, so that the movable sleeve is pushed to slide and the spring is compressed to realize temperature self-adaptation.
Furthermore, a sealing ring is arranged between the movable sleeve and the fixed sleeve.
Further, the piston is provided with a sealing ring.
Furthermore, the movable sleeve is in insertion guiding fit with the piston.
Furthermore, the outer shell, the piston sleeve, the fixed sleeve, the movable sleeve, the piston and the motor heat exchange sheath are coaxially arranged.
Further, the spring is a coil spring or a disc spring.
Further, the spiral channel of the motor heat exchange sheath is formed by fins.
Further, the outer shell is formed of a plurality of shells.
The invention has the advantages that: 1. the device leads a high-pressure fluid from the outlet (high-pressure end) of the liquid cooling pump to enter the pressurizing cavity through the spiral channel formed by the motor shell and the cylinder body, the pressurizing cavity is gradually filled with working media, and air in the pressurizing cavity is discharged through a pipeline, so that the air in the pressurizing cavity is prevented from being brought into the system when the system media circulates, the system function is reduced, and the liquid cooling pump is subjected to cavitation erosion. When the gas in the pressurizing cavity is exhausted, the working medium can enter the low-pressure cavity from the high-pressure cavity through the pipeline. The medium can take away the heat that the motor work in-process produced high-efficiently at the flow in-process to avoid the motor to high temperature for a long time and reduce its reliability. Meanwhile, the high-pressure liquid in the pressurizing cavity and the elastic force of the spring are utilized to pressurize the piston at the same time, so that the pressure at the inlet of the liquid cooling pump is ensured, and the liquid cooling pump is prevented from cavitation. The traditional liquid supply assembly pressurization structure mainly utilizes a spring to pressurize, and the device utilizes partial pressure generated by high-pressure liquid to pressurize a piston, so that the requirement on the elasticity of the spring can be reduced, the weight of the spring is reduced, and the weight of the whole product is reduced.
2. The liquid cooling pump motor is embedded inside the expansion tank, so that the space of the inner cavity of the piston is fully utilized, and the volume of the liquid supply assembly is reduced.
3. When the liquid cooling system is used, the liquid cooling system is filled with liquid in the ground environment, and the working environment temperature range of the liquid cooling system is generally between-55 ℃ and 70 ℃. Under the action of thermal expansion and cold contraction of a working medium, when the ambient temperature is at a low temperature, the volume of the medium shrinks, so that a cavity exists in the system, the pumping capacity of the liquid-cooled pump is reduced, and the performance of the system is influenced; when the ambient temperature is at a high temperature, the volume of the medium expands, and the system structure is burst. In order to avoid the phenomenon, the device is provided with a piston structure, when the volume of a working medium in the system is contracted, under the combined action of the elasticity of a spring and the pressure of high-pressure liquid, a small piston presses a large piston to move, and liquid stored in a liquid storage cavity is supplemented into the contracted volume of the working medium of the system, so that the pressure of an inlet of the liquid cooling pump is ensured, and the liquid cooling pump can normally work; when the volume of the working medium in the system expands, the large piston presses the small piston to move so as to increase the volume of the system and avoid the volume expansion of the working medium from bursting the structure of the system. The structure can realize the full-temperature envelope work of the system. The main purpose of decomposing the piston structure into two pistons in size is to reduce the processing difficulty and the installation stress. .
Drawings
FIG. 1 is a schematic view of the construction of the present invention (liquid volume expansion, piston to maximum position);
FIG. 2 is a schematic view of the structure of the motor heat exchange wrap;
FIG. 3 is a side view of the present invention;
FIG. 4 is a schematic of the construction of the present invention (expansion of the liquid volume, piston not reaching maximum position);
FIG. 5 is a schematic view of the structure of the present invention (liquid volume not expanded);
in the figure: the heat-exchange device comprises a motor pump shell 1, an outer shell 2, a motor heat-exchange sheath 3, a fixed sleeve 4, a movable sleeve 5, a piston sleeve 6, a piston 7, a spring 8, a low-pressure cavity 9, a high-pressure cavity 10, an oil return cavity 11, a gas cavity 12, a liquid cavity 13, a movable sleeve inner 14, a spiral channel 15 and a heat-dissipation oil return channel 16.
Detailed Description
Features and illustrative embodiments of various aspects of the invention are described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention. The present invention is in no way limited to any specific arrangement and method set forth below, but rather covers any improvements, substitutions and modifications in structure, method, and apparatus without departing from the spirit of the invention. In the drawings and the following description, well-known structures and techniques are not shown to avoid unnecessarily obscuring the present invention.
It should be noted that, in case of conflict, the embodiments and features of the embodiments of the present invention may be combined with each other, and the respective embodiments may be referred to and cited with each other. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example 1, referring to fig. 1-5, a heat exchange structure for a motor pump is provided, including a motor pump housing, an outer housing, a motor heat exchange jacket, a fixed sleeve, a movable sleeve, a piston, and a spring;
the outer shell, the piston sleeve, the fixed sleeve and the motor heat exchange sheath are sequentially arranged from outside to inside; the same ends of the outer shell, the piston sleeve, the fixed sleeve and the motor heat exchange sheath are fixed with the motor pump shell into a whole;
the outer shell is positioned outside the piston sleeve, an oil return cavity is formed between the outer shell and the piston sleeve, and the oil return cavity is communicated with a low-pressure cavity of a motor pump shell; the fixed sleeve is positioned outside the motor heat exchange sheath, and a heat dissipation oil return channel is formed between the fixed sleeve and the motor heat exchange sheath; the piston sleeve is positioned outside the fixed sleeve and the movable sleeve, and a piston cavity is formed among the piston sleeve, the fixed sleeve and the movable sleeve; a pump motor is arranged in the motor heat exchange jacket;
the piston is positioned in the piston cavity and divides the piston cavity into a gas cavity and a liquid cavity, the liquid cavity is communicated with the oil return cavity, and the gas cavity is communicated with an external gas environment;
the movable sleeve is of a cylinder structure with an opening at one side, the movable sleeve is sleeved on the outer wall of the fixed sleeve and is in sliding sealing fit with the fixed sleeve, the spring is arranged in the movable sleeve, and the spring is elastically arranged between the motor heat exchange sleeve and the movable sleeve; the wall of the motor heat exchange sheath is provided with a spiral channel, one end of the spiral channel is communicated with a high-pressure cavity of a motor pump shell, the other end of the spiral channel is communicated into the movable sleeve, and the heat dissipation oil return channel is communicated with a low-pressure cavity of the motor pump in the movable sleeve;
when the motor pump runs, part of liquid in the high-pressure cavity passes through the spiral channel flow passage movable sleeve and then returns to the low-pressure cavity through the heat dissipation oil return channel; when the temperature of the low-pressure cavity rises, the liquid expands to enable the piston to slide, so that the movable sleeve is pushed to slide and the spring is compressed to realize temperature self-adaptation.
And a sealing ring is arranged between the movable sleeve and the fixed sleeve.
The piston is provided with a sealing ring.
The movable sleeve is in insertion guiding fit with the piston.
The outer shell, the piston sleeve, the fixed sleeve, the movable sleeve, the piston and the motor heat exchange sheath are all coaxially arranged.
The spring is a spiral spring or a disc spring.
The spiral channel of the motor heat exchange sheath is formed by fins.
The outer shell is formed of a plurality of shells.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort belong to the protection scope of the present invention.
Claims (8)
1. Heat transfer structure suitable for motor pump, its characterized in that: the device comprises a motor pump shell, an outer shell, a motor heat exchange sheath, a fixed sleeve, a movable sleeve, a piston and a spring;
the outer shell, the piston sleeve, the fixed sleeve and the motor heat exchange sheath are sequentially arranged from outside to inside; the same ends of the outer shell, the piston sleeve, the fixed sleeve and the motor heat exchange sheath are fixed with the motor pump shell into a whole;
the outer shell is positioned outside the piston sleeve, an oil return cavity is formed between the outer shell and the piston sleeve, and the oil return cavity is communicated with a low-pressure cavity of a motor pump shell; the fixed sleeve is positioned outside the motor heat exchange sheath, and a heat dissipation oil return channel is formed between the fixed sleeve and the motor heat exchange sheath; the piston sleeve is positioned outside the fixed sleeve and the movable sleeve, and a piston cavity is formed among the piston sleeve, the fixed sleeve and the movable sleeve; a pump motor is arranged in the motor heat exchange jacket;
the piston is positioned in the piston cavity and divides the piston cavity into a gas cavity and a liquid cavity, the liquid cavity is communicated with the oil return cavity, and the gas cavity is communicated with an external gas environment;
the movable sleeve is of a cylinder structure with an opening at one side, the movable sleeve is sleeved on the outer wall of the fixed sleeve and is in sliding sealing fit with the fixed sleeve, the spring is arranged in the movable sleeve, and the spring is elastically arranged between the motor heat exchange sleeve and the movable sleeve; the wall of the motor heat exchange sheath is provided with a spiral channel, one end of the spiral channel is communicated with a high-pressure cavity of the motor pump shell, the other end of the spiral channel is communicated into the movable sleeve, and the heat dissipation oil return channel is communicated with a low-pressure cavity of the motor pump in the movable sleeve;
when the motor pump runs, part of liquid in the high-pressure cavity passes through the spiral channel flow passage movable sleeve and then returns to the low-pressure cavity through the heat dissipation oil return channel; when the temperature of the low-pressure cavity rises, the liquid expands to enable the piston to slide, so that the movable sleeve is pushed to slide and the spring is compressed to realize temperature self-adaptation.
2. The heat exchange structure suitable for the motor pump as claimed in claim 1, wherein a sealing ring is arranged between the movable sleeve and the fixed sleeve.
3. The heat exchange structure suitable for the motor pump is characterized in that the piston is provided with a sealing ring.
4. The heat exchange structure suitable for the motor pump as claimed in claim 1, wherein the movable sleeve is in plug-in guiding fit with the piston.
5. The heat exchange structure suitable for the motor pump as claimed in claim 1, wherein the outer casing, the piston sleeve, the fixed sleeve, the movable sleeve, the piston and the motor heat exchange sheath are coaxially arranged.
6. The heat exchange structure suitable for the motor pump as claimed in claim 1, wherein the spring is a coil spring or a disc spring.
7. The heat exchange structure suitable for the motor pump as claimed in claim 1, wherein the spiral channel of the motor heat exchange jacket is formed by fins.
8. The heat exchange structure suitable for the motor pump as claimed in claim 1, wherein the outer casing is formed by a plurality of shells.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211283275.1A CN115711170A (en) | 2022-10-20 | 2022-10-20 | Heat exchange structure suitable for motor pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211283275.1A CN115711170A (en) | 2022-10-20 | 2022-10-20 | Heat exchange structure suitable for motor pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115711170A true CN115711170A (en) | 2023-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211283275.1A Pending CN115711170A (en) | 2022-10-20 | 2022-10-20 | Heat exchange structure suitable for motor pump |
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| Country | Link |
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| CN (1) | CN115711170A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117895703A (en) * | 2024-03-15 | 2024-04-16 | 常州天安尼康达电器有限公司 | Alternating current motor with intelligent adjustable heat dissipation function |
-
2022
- 2022-10-20 CN CN202211283275.1A patent/CN115711170A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117895703A (en) * | 2024-03-15 | 2024-04-16 | 常州天安尼康达电器有限公司 | Alternating current motor with intelligent adjustable heat dissipation function |
| CN117895703B (en) * | 2024-03-15 | 2024-05-14 | 常州天安尼康达电器有限公司 | Alternating current motor with intelligent adjustable heat dissipation function |
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