A power electronic waterway system

Abstract

The utility model discloses a kind of power electronic waterway systems, including at least two cooling branches, with each cooling branch corresponding cooled device and an expansion tank, the cooling branch includes water pump and water-air heat exchanger;In each cooling branch: the water outlet of the water-air heat exchanger is connected with the water inlet of corresponding water pump, the water inlet of the water-air heat exchanger is the water inlet of cooling branch, the water outlet of the water pump is the water outlet of cooling branch, the outlet of the water pump is connected with the water inlet of corresponding cooled device, the water outlet of the cooled device is connected with the water inlet of corresponding water-air heat exchanger;Water-air heat exchanger water outlet and water pump water inlet between each cooling branch are all provided with an interface;The expansion tank is shared by each cooling branch of the power electronic waterway system, only keep the key device of heat exchanger, water pump, simplify system, make maintenance process more efficient, effectively reduce the risk and cost of entire system.

Description

TECHNICAL FIELD

[0001] The utility model relates to power electronic heat dissipation technical field especially relates to a power electronic water system. BACKGROUND

[0002] The prior art water cooling system is usually composed of a water cooling machine and a water-air heat exchanger, and the system is complex and has a high cost. During the operation of the water cooling system, problems such as evaporation and leakage of the cooling liquid inevitably occur, which leads to a decrease in the system pressure and the water cooling system cannot be used normally. In order to maintain the stability of the internal pressure of the system, the water cooling machine adopts a closed water system scheme, and each cooling branch of the scheme needs to be provided with an expansion tank, a liquid supplement pump, a temperature sensor, a pressure sensor, a check valve and many other devices. These devices not only increase the risk points of the system, but also need to be regularly maintained, which greatly increases the system risk points and operation and maintenance costs. SUMMARY

[0003] The utility model solves the technical problem of providing a power electronic water system, and each cooling branch of the power electronic water system shares an expansion water tank, only the key devices of the heat exchanger and the water pump are retained, the system is simplified, the maintenance process is more efficient, and the risk and cost of the entire system are effectively reduced.

[0004] To solve the above technical problems, the utility model provides a kind of power electronic water system, including at least two cooling branches, the cooled device corresponding with each cooling branch and one expansion water tank, the cooling branch includes water pump and water-air heat exchanger;In each cooling branch: the water outlet of the water-air heat exchanger is connected to the water inlet of the corresponding water pump, the water inlet of the water-air heat exchanger is the water inlet of the cooling branch, the water outlet of the water pump is the water outlet of the cooling branch, the outlet of the water pump is connected to the water inlet of the corresponding cooled device, and the water outlet of the cooled device is connected to the water inlet of the corresponding water-air heat exchanger;An interface is provided between the water outlet of the water-air heat exchanger and the water inlet of the water pump of each cooling branch, and the interface is connected to the liquid supplement port of the expansion water tank;The exhaust port of the water-air heat exchanger of each cooling branch is connected to the gas collecting pipe of the expansion water tank by pipeline.

[0005] Preferably, in each cooling branch, the interface is a three-way liquid collector or a multi-way liquid collector, the pipeline connected to the liquid supplement port of the expansion water tank is first connected to the liquid collector, and then connected to the water inlet of the water pump and the water outlet of the water-air heat exchanger through one connector of the liquid collector.

[0006] Preferably, the expansion water tank is provided with a liquid adding cover, a pressure cover and a liquid level switch, the liquid adding cover and the pressure cover are arranged at the highest position of the expansion water tank, the gas collecting pipe is arranged at more than two-thirds of the horizontal height of the expansion water tank, and the liquid level switch and the liquid supplementing port are arranged at the lowest position of the expansion water tank.

[0007] Preferably, the material of the expansion water tank is engineering plastic.

[0008] Preferably, the connecting pipe of the pipeline in the water system comprises a nylon pipeline and a connecting piece.

[0009] Preferably, the nylon pipeline is made of PA12 material resistant to ultraviolet rays, the outer surface of the nylon pipeline is wrapped with a cloth-based adhesive tape resistant to ultraviolet rays, and the outermost layer of the outer surface of the nylon pipeline is further sleeved with a wear-resistant ribbed sleeve.

[0010] Preferably, the water pump is an electronic water pump.

[0011] Preferably, the water-air heat exchanger is a micro-channel heat exchanger.

[0012] Preferably, the water outlets of the cooling branches are combined to form a water outlet of the power electronic water system, the water inlets of the cooling branches are combined to form a water inlet of the power electronic water system, the water outlet of the power electronic water system is connected with the water inlet of the cooled device, and the water inlet of the power electronic water system is connected with the water outlet of the cooled device.

[0013] After the system is used, the power electronic water system comprises at least two cooling branches, corresponding cooled devices and an expansion water tank, the cooling branch comprises a water pump and a water-air heat exchanger; in each cooling branch, the water outlet of the water-air heat exchanger is connected with the water inlet of the corresponding water pump, the water inlet of the water-air heat exchanger is the water inlet of the cooling branch, the water outlet of the water pump is the water outlet of the cooling branch, the outlet of the water pump is connected with the water inlet of the corresponding cooled device, and the water outlet of the cooled device is connected with the water inlet of the corresponding water-air heat exchanger; an interface is arranged between the water outlet of the water-air heat exchanger and the water inlet of the water pump of each cooling branch, and the interfaces are commonly connected to the liquid supplementing port of the expansion water tank; the exhaust port of the water-air heat exchanger of each cooling branch is connected to the gas collecting pipe of the expansion water tank through a pipeline; the cooling branches of the power electronic water system share one expansion water tank, only the key devices of the heat exchanger and the water pump are reserved, the system is simplified, the maintenance process is more efficient, and the risk and cost of the entire system are effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole system diagram of the power electronic water system according to the first or fifth embodiment of the utility model;

[0015] Figure 2 The whole system diagram of the power electronic waterway system of the sixth embodiment of the utility model;

[0016] Figure 3 The whole system diagram of the power electronic waterway system of the seventh embodiment of the utility model;

[0017] Figure 4 The whole system diagram of the power electronic waterway system of the eighth embodiment of the utility model. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further explained in detail by combining with the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0019] Embodiment one

[0020] Please refer to Figure 1 , Figure 1 The whole system diagram of the power electronic waterway system of the first or fifth embodiment of the utility model;

[0021] The embodiment discloses a kind of power electronic waterway system, including at least two cooling branch 1, with each cooling branch corresponding cooled device 10 and one expansion tank 50, the cooling branch 1 includes water pump 14 and water-air heat exchanger 120;In each cooling branch 1: the water outlet 122 of water-air heat exchanger 120 is connected with the water inlet of corresponding water pump 14, the water inlet 121 of water-air heat exchanger 120 is the water inlet 101 of cooling branch 1, the water outlet of water pump 14 is the water outlet 102 of cooling branch 1, the outlet of the water pump is connected with the water inlet of corresponding cooled device 10, the water outlet of the cooled device 10 is connected with the water inlet of corresponding water-air heat exchanger 120;The water outlet 122 of water-air heat exchanger of each cooling branch 1 and the water inlet of water pump 14 are all provided with an interface 131, the interface 131 is connected to the liquid supplementing port 502 of the expansion tank 50;The exhaust port 123 of water-air heat exchanger 120 of each cooling branch 1 is connected to the gas collecting pipe 505 of the expansion tank by pipeline.

[0022] Embodiment two

[0023] The embodiment is based on embodiment one, in each cooling branch, the interface 131 is three-way liquid collector or multi-way liquid collector, the pipeline of liquid supplementing port of expansion tank is first connected with liquid collector, and then the water inlet of water pump and the water outlet of water-air heat exchanger are connected with one connector and another connector of liquid collector respectively.

[0024] Embodiment three

[0025] The embodiment is based on the embodiment one, in the embodiment, the expansion tank 50 is provided with a liquid filling cover 504, a pressure cover 503 and a liquid level switch 501, the liquid filling cover 504 and the pressure cover 503 are arranged at the highest position of the expansion tank 50, the gas collecting pipe 505 is arranged above two-thirds of the horizontal height of the expansion tank 50, and the liquid level switch 501 and the liquid supplementing port are arranged at the lowest position of the expansion tank 50.

[0026] Embodiment four

[0027] The embodiment is based on the embodiment one, in the embodiment,

[0028] The connecting pipe fittings of the pipelines in the water system include nylon pipelines and connecting fittings;

[0029] The nylon pipeline is made of PA12 material resistant to ultraviolet rays, the outer surface of the nylon pipeline is wrapped with a cloth-based adhesive tape resistant to ultraviolet rays, and the outermost layer of the outer surface of the nylon pipeline is further sleeved with a wear-resistant ribbed sleeve;

[0030] The water pump 14 is an electronic water pump;

[0031] The water-air heat exchanger 120 is a micro-channel heat exchanger.

[0032] Embodiment five

[0033] The embodiment is based on the embodiment one, please refer to Figure 1 , in the embodiment,

[0034] The embodiment discloses a power electronic water system, the system includes two cooling branches, the high-temperature cooling liquid passing through the cooled device 10 enters the cooling branch 1 through the water inlet 101 of the cooling branch 1, exchanges heat with the outside in the water-air heat exchanger 120, at this time, the gas carried in the cooling branch 1 will be gathered to the upper part of the expansion tank 50 through the exhaust port 123 of the water-air heat exchanger 120 and the gas collecting pipe 505 of the expansion tank, and the low-temperature cooling liquid after sufficient heat exchange in the water-air heat exchanger 120 is pressurized by the electronic water pump 14 after the three-way liquid collector, and is transported to the cooled device 10 from the water outlet 102 of the cooling branch 1, forming the circulation of the entire water system; the water circulation of other cooling branches is completely consistent with the cooling branch 1, and will not be described here.

[0035] The three-way joint is connected to the liquid supplementing port 502 of the expansion tank 50, when the pressure of the water system decreases, the expansion tank 50 automatically supplements the two cooling branches through the liquid supplementing port 502. When the liquid level continuously decreases and is lower than one-third of the height of the tank, the liquid level switch 501 will output an alarm signal, and when the liquid level continuously decreases and the system pressure is lower than the design range, the pressure cover 503 of the expansion tank will automatically open and communicate with the atmosphere, maintaining the system pressure.

[0036] Only by opening the liquid filling cover 504 of the expansion tank, the liquid supplement operation can be performed on the whole water circuit system.

[0037] Embodiment six

[0038] This embodiment is based on embodiment one, please refer to Figure 2 In this embodiment, the water pump 14 in the cooling branch 1 is connected in the form of double pump parallel connection, which improves the flow of a single cooling branch.

[0039] Embodiment seven

[0040] This embodiment is based on embodiment one, please refer to Figure 3 In this embodiment, the water outlets 102 of each cooling branch 1 are merged to form the water outlet 12 of the power electronic water circuit system, the water inlets 101 of each cooling branch 1 are merged to form the water inlet 11 of the power electronic water circuit system, the water outlet 12 of the power electronic water circuit system is connected with the water inlet of the cooled device 10, and the water inlet 11 of the power electronic water circuit system is connected with the water outlet of the cooled device 10.

[0041] Embodiment eight

[0042] This embodiment is based on embodiment one, please refer to Figure 4 In this embodiment, multiple cooling branches 1 share one expansion tank.

[0043] The cooling branches of the power electronic water circuit system share one expansion tank, only the key devices of the heat exchanger and the water pump are retained, the system is simplified, the maintenance process is more efficient, and the risk and cost of the whole system are effectively reduced.

[0044] The preferred embodiments of the present application are described above with reference to the accompanying drawings, and the scope of the right of the present application is not limited thereto. Any modification, equivalent replacement and improvement made by those skilled in the art without departing from the scope and essence of the present application shall be within the scope of the right of the present application.

Claims

1. A power electronic waterway system, characterized by, The application relates to a water cooling system for power electronic devices, which comprises at least two cooling branches, corresponding cooled devices and an expansion tank, wherein each cooling branch comprises a water pump and a water-air heat exchanger; in each cooling branch, the water outlet of the water-air heat exchanger is connected to the water inlet of the corresponding water pump, the water inlet of the water-air heat exchanger is the water inlet of the cooling branch, the water outlet of the water pump is the water outlet of the cooling branch, the outlet of the water pump is connected to the water inlet of the corresponding cooled device, and the water outlet of the cooled device is connected to the water inlet of the corresponding water-air heat exchanger; an interface is arranged between the water outlet of the water-air heat exchanger and the water inlet of the water pump in each cooling branch, and the interfaces are connected to the liquid supplementing port of the expansion tank; and the exhaust port of the water-air heat exchanger of each cooling branch is connected to the gas collecting pipe of the expansion tank through a pipeline.

2. The power electronic waterway system of claim 1, wherein, In each cooling branch, the interface is a three-way liquid collector or a multi-way liquid collector, the pipeline connected to the liquid supplementing port of the expansion tank is connected to the liquid collector first, and then connected to the water inlet of the water pump and the water outlet of the water-air heat exchanger through a joint and another joint of the liquid collector.

3. The power electronic waterway system of claim 1, wherein, The expansion tank is provided with a liquid supplementing cover, a pressure cover and a liquid level switch, the liquid supplementing cover and the pressure cover are arranged at the highest position of the expansion tank, the gas collecting pipe is arranged at more than two-thirds of the horizontal height of the expansion tank, and the liquid level switch and the liquid supplementing port are arranged at the lowest position of the expansion tank.

4. The power electronic waterway system of claim 1, wherein, The material of the expansion tank is engineering plastic.

5. The power electronic waterway system of claim 1, wherein, The connecting pipe of the pipeline in the water system comprises a nylon pipeline and a connecting piece.

6. The power electronic waterway system of claim 5, wherein, The nylon pipeline is made of PA12 material resistant to ultraviolet rays, the outer surface of the nylon pipeline is wrapped with a cloth-based adhesive tape resistant to ultraviolet rays, and the outermost layer of the outer surface of the nylon pipeline is further sleeved with a wear-resistant ribbed sleeve.

7. The power electronic waterway system of claim 1, wherein, The water pump is an electronic water pump.

8. The power electronic waterway system of claim 1, wherein, The water-air heat exchanger is a micro-channel heat exchanger.

9. The power electronic waterway system of claim 1, wherein, The water outlets of the cooling branches are combined to form the water outlet of the power electronic water system, the water inlets of the cooling branches are combined to form the water inlet of the power electronic water system, the water outlet of the power electronic water system is connected to the water inlet of the cooled device, and the water inlet of the power electronic water system is connected to the water outlet of the cooled device.

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