Energy-saving forced convection device

Abstract

The utility model provides an energy-saving forced convection device, which belongs to the technical field of heat dissipation devices and comprises a cooling water circulating water inlet pipeline, a water inlet joint is arranged at the water inlet end of the cooling water circulating water inlet pipeline, and the water outlet end of the cooling water circulating water inlet pipeline is communicated with a fluid actuator. The power output end of the fluid actuator is in transmission connection with a passive external cooling fan, the water outlet end of the fluid actuator is communicated with a middle pipeline, the water outlet end of the middle pipeline is communicated with a water cooling radiator, the water outlet end of the water cooling radiator is communicated with a cooling water circulation water outlet pipeline, and the water outlet end of the cooling water circulation water outlet pipeline is provided with a water outlet connector. The beneficial effects of the utility model lie in that the problem of fan power supply cable assembly can be reduced, the space of a fan circuit board can be reduced, the situation of voltage conversion required by the fan does not need to be considered, the size of a server case can be reduced, and the energy-saving benefit can be increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat dissipation devices, and in particular relates to an energy-saving forced convection device. Background Art

[0002] To ensure the stability and safety of the server, the server needs to use heat dissipation equipment or heat dissipation structure to protect itself from heat dissipation. At present, some servers use open water cooling devices to dissipate heat for the server, and at this time, on the one hand, the working fluid will be transported to the liquid cooling radiator through the CDU (cooling distribution unit) to cool high-power components such as CPU or GPU, and on the other hand, the cooling fan will be used to generate forced convection to cool other lower-power components.

[0003] However, since the power source of the cooling fan mainly relies on external electricity, that is, it needs to first be provided to the system through a power supply, and then the voltage of the system circuit board is converted into a corresponding voltage for the fan motor to rotate, thereby driving the fan blades to rotate and generate forced convection; existing servers often have the following problems when using an open water cooling device and a cooling fan: (1) The cost of electronic materials is relatively high, and the life of electronic components must also be considered; (2) Because the DC voltage conversion power supply requires a fan DC voltage circuit board and a fan cable connector, it will also occupy the space on the circuit board that can be used to place electronic components, as well as the space inside the chassis, and consider the problem of winding and assembling the fan cable. Utility Model Content

[0004] The technical problem solved by the utility model is to propose and design an energy-saving forced convection device that does not need to provide additional electric energy to the cooling fan, so as to solve the above-mentioned problems existing in the existing server when an open water-cooling heat dissipation device is used in combination with a cooling fan for heat dissipation treatment, namely, reducing the problem of fan power cable assembly, reducing the space of the fan circuit board, and not considering the voltage conversion required by the fan, thereby reducing the size of the server chassis and increasing energy-saving benefits.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is: an energy-saving forced convection device, which includes a cooling water circulation inlet pipeline, a water inlet joint is provided at the water inlet end of the cooling water circulation inlet pipeline, a water outlet end of the cooling water circulation inlet pipeline is connected to a fluid actuator, a power output end of the fluid actuator is connected to a passive external cooling fan, the water outlet end of the fluid actuator is connected to an intermediate pipeline, the water outlet end of the intermediate pipeline is connected to a water-cooled radiator, the water outlet end of the water-cooled radiator is connected to a cooling water circulation outlet pipeline, and a water outlet joint is provided at the water outlet end of the cooling water circulation outlet pipeline. At this time, when the working fluid enters the cooling water circulation inlet pipeline, the working fluid in the pipe will first flow through the fluid actuator and drive the passive external cooling fan to generate forced convection. At this time, the forced convection can reduce the temperature of the components with lower power consumption, and then the working fluid will flow through the water-cooled radiator with higher heat dissipation requirements and reduce the temperature of the components with high power consumption; finally, it will flow out through the cooling water circulation outlet pipeline. Moreover, based on this, since the utility model does not need to design an additional power system to provide power to the passive external cooling fan at the low-power component, it can also reduce the problem of fan power cable assembly, reduce the space of the fan circuit board, do not need to consider the voltage conversion required by the fan, reduce the size of the server chassis, and increase energy saving benefits.

[0006] Furthermore, a fluid energy recovery pipeline is connected between the water outlet end of the cooling water circulation outlet pipeline and the water inlet end of the cooling water circulation inlet pipeline. At this time, when the working fluid flows out of the water-cooled radiator, if the temperature of the working fluid still has low-temperature energy, this part of the working fluid can be returned to the cooling water circulation inlet pipeline through the fluid energy recovery pipeline, and this part of the working fluid can be recycled and reused to increase energy-saving benefits.

[0007] Furthermore, the fluid energy recovery pipeline is provided with a backflow valve, and the backflow valve is used to prevent the working fluid from flowing back.

[0008] Furthermore, the fluid energy recovery pipeline is provided with a flow valve, and the flow rate of the working fluid is adjusted by the flow valve.

[0009] Furthermore, the cooling water circulation outlet pipeline is provided with a temperature sensor, and the temperature of the working fluid in the cooling water circulation outlet pipeline can be monitored in real time by the temperature sensor.

[0010] Furthermore, the temperature sensor is connected to the flow valve for communication, and the opening and closing state of the flow valve can be determined according to the value monitored by the temperature sensor.

[0011] Furthermore, the fluid actuator is a contact type fluid actuator.

[0012] Furthermore, the fluid actuator includes a housing, a circulation channel is arranged inside the housing, the water inlet end of the circulation channel is connected to the cooling water circulation water inlet pipeline, the water outlet end of the circulation channel is connected to the intermediate pipeline, an impeller is rotatably installed inside the circulation channel, and the rotating shaft of the impeller is transmission-connected to the rotating shaft of the passive external cooling fan. At this time, when the working fluid flows through the circulation channel of the fluid actuator, the working fluid can drive the impeller to rotate, and the impeller can drive the passive external cooling fan to rotate, forming forced convection.

[0013] Furthermore, the fluid actuator is a non-contact fluid actuator.

[0014] Furthermore, the fluid actuator includes a housing, a circulation channel is arranged inside the housing, the water inlet end of the circulation channel is connected to the cooling water circulation water inlet pipeline, the water outlet end of the circulation channel is connected to the intermediate pipeline, an impeller is rotatably installed inside the circulation channel, the rotation center of the impeller is embedded with an active permanent magnet; the rotation center of the passive external cooling fan is embedded with a passive permanent magnet, and the passive permanent magnet is arranged opposite to the active permanent magnet. At this time, when the working fluid flows through the circulation channel of the fluid actuator, the working fluid can drive the impeller to rotate, the impeller can drive the active permanent magnet to rotate, and at this time, the active permanent magnet and the passive permanent magnet can drive the passive permanent magnet and the passive external cooling fan to rotate by means of magnetic induction, thereby generating forced convection.

[0015] It can be seen from the above technical solutions that the utility model has the following advantages: since the utility model does not need to additionally design a power system to provide electrical energy to the passive external cooling fan at the low-power components, it can also reduce the problem of fan power cable assembly, reduce the space of the fan circuit board, and do not need to consider the voltage conversion required by the fan, thereby reducing the size of the server chassis and increasing energy-saving benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of a specific implementation method of the utility model;

[0018] Figure 2 Schematic diagram of the structure of the passive external cooling fan and the fluid actuator in the present invention (the direction of the dotted arrow in the figure is the flow direction of the working fluid in the fluid actuator).

[0019] In the figure: 1. Chassis; 2. Water-cooled radiator; 3. Passive external cooling fan; 4. Fluid energy recovery pipeline; 5. Cooling water circulation inlet pipeline; 6. Water outlet joint; 7. Intermediate pipeline; 8. Cooling water circulation outlet pipeline; 9. Fluid actuator. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figure 1 , Figure 2 As shown, the utility model provides an energy-saving forced convection device, which includes a cooling water circulation inlet pipeline 5, a fluid actuator 9, an intermediate pipeline 7, a water-cooled radiator 2, and a cooling water circulation outlet pipeline 8 which are connected in sequence.

[0022] Among them, the water inlet end of the cooling water circulation inlet pipeline 5 is provided with a water inlet joint, the water outlet end of the cooling water circulation outlet pipeline 8 is provided with a temperature sensor and a water outlet joint 6, and the water outlet end of the cooling water circulation outlet pipeline 8 and the water inlet end of the cooling water circulation inlet pipeline 5 are connected with a fluid energy recovery pipeline 4, and the fluid energy recovery pipeline 4 is provided with a reverse flow valve and a flow valve, and the reverse flow valve and the flow valve can be communicatively connected with the temperature sensor. At this time, after the working fluid flows out of the water-cooled radiator 2, if the temperature of the working fluid still has low-temperature energy, this part of the working fluid can be refluxed to the cooling water circulation inlet pipeline 5 again through the fluid energy recovery pipeline 4, and this part of the working fluid can be recycled and reused to increase energy-saving benefits. Moreover, during the flow of the working fluid, the utility model can adjust the flow of the working fluid through the flow valve, and prevent the working fluid from backflowing through the reverse flow valve.

[0023] The power output end of the fluid actuator 9 is connected to the passive external cooling fan 3 by transmission, and it can drive the passive external cooling fan 3 to generate forced convection when the working fluid flows through the fluid actuator 9, so as to reduce the temperature of the components with lower power consumption. Specifically, the fluid actuator 9 can adopt any one of the contact fluid actuator and the non-contact fluid actuator, and when it adopts the contact fluid actuator, the fluid actuator 9 includes a shell, a circulation channel is arranged inside the shell, the water inlet end of the circulation channel is connected with the cooling water circulation water inlet pipeline 5, the water outlet end of the circulation channel is connected with the intermediate pipeline 7, and an impeller is installed inside the circulation channel for rotation, and the rotating shaft of the impeller is connected to the rotating shaft of the passive external cooling fan 3 by a transmission connection structure such as a coupling and a gear transmission. At this time, when the working fluid flows through the circulation channel of the fluid actuator 9, the working fluid can drive the impeller to rotate, and the impeller can drive the passive external cooling fan 3 to rotate to form forced convection. In addition, it can also adopt other contact fluid actuator structures commonly seen on the market.

[0024] When a non-contact fluid actuator is used, the fluid actuator 9 includes a housing, a circulation channel is provided inside the housing, and the water inlet end of the circulation channel is connected to the cooling water circulation water inlet pipeline 5, and the water outlet end of the circulation channel is connected to the intermediate pipeline 7. An impeller is rotatably installed inside the circulation channel, and an active permanent magnet is embedded in the rotation center of the impeller; a passive permanent magnet is embedded in the rotation center of the passive external cooling fan 3, and the passive permanent magnet is arranged opposite to the active permanent magnet. At this time, when the working fluid flows through the circulation channel of the fluid actuator 9, the working fluid can drive the impeller to rotate, and the impeller can drive the active permanent magnet to rotate, and at this time, the active permanent magnet and the passive permanent magnet can drive the passive permanent magnet and the passive external cooling fan 3 to rotate by means of magnetic induction, thereby generating forced convection. In addition, other non-contact fluid actuator structures commonly found on the market can also be used.

[0025] Based on this, when the utility model is used to cool the components in the chassis 1 of the server, it can control the working fluid to enter the cooling water circulation inlet pipeline 5, and at this time the working fluid in the pipe will first flow through the fluid actuator 9 and drive the passive external cooling fan 3 to generate forced convection. At this time, the forced convection can be used to reduce the temperature of the components with lower power consumption, and then the working fluid will flow through the water-cooled radiator 2 with higher heat dissipation requirements and reduce the temperature of the components with high power consumption; finally, the working fluid flows into the cooling water circulation inlet pipeline 5 again through the fluid energy recovery pipeline 4 for reflux and reuse, or flows out through the cooling water circulation outlet pipeline 8.

[0026] Furthermore, since the utility model does not need to design an additional power system to provide power to the passive external cooling fan 3 at the low-power component, it can also reduce the problem of fan power cable assembly, reduce the space of the fan circuit board, and do not need to consider the voltage conversion required by the fan, thereby reducing the chassis size of the server and increasing energy-saving benefits.

[0027] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions.

[0028] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An energy-saving forced convection device, comprising a cooling water circulation inlet pipeline, wherein the water inlet end of the cooling water circulation inlet pipeline is provided with a water inlet joint; characterized in that: The water outlet end of the cooling water circulation inlet pipeline is connected to a fluid actuator, the power output end of the fluid actuator is transmission-connected to a passive external cooling fan, the water outlet end of the fluid actuator is connected to an intermediate pipeline, the water outlet end of the intermediate pipeline is connected to a water-cooled radiator, the water outlet end of the water-cooled radiator is connected to the cooling water circulation outlet pipeline, and the water outlet end of the cooling water circulation outlet pipeline is provided with a water outlet joint.

2. The energy-saving forced convection device according to claim 1, characterized in that: A fluid energy recovery pipeline is connected between the water outlet end of the cooling water circulation outlet pipeline and the water inlet end of the cooling water circulation inlet pipeline.

3. The energy-saving forced convection device according to claim 2, characterized in that: The fluid energy recovery pipeline is provided with a reverse flow valve.

4. The energy-saving forced convection device according to claim 2, characterized in that: The fluid energy recovery pipeline is provided with a flow valve.

5. The energy-saving forced convection device according to claim 4, characterized in that: The cooling water circulation outlet pipeline is provided with a temperature sensor.

6. The energy-saving forced convection device according to claim 5, characterized in that: The temperature sensor is communicatively connected with the flow valve.

7. The energy-saving forced convection device according to any one of claims 1 to 6, characterized in that: The fluid actuator is a contact type fluid actuator.

8. The energy-saving forced convection device according to claim 7, characterized in that: The fluid actuator includes a shell, a circulation channel is arranged inside the shell, the water inlet end of the circulation channel is connected to the cooling water circulation inlet pipeline, the water outlet end of the circulation channel is connected to the intermediate pipeline, an impeller is rotatably installed inside the circulation channel, and the rotating shaft of the impeller is transmission-connected to the rotating shaft of the passive external cooling fan.

9. The energy-saving forced convection device according to any one of claims 1 to 6, characterized in that: The fluid actuator is a non-contact fluid actuator.

10. The energy-saving forced convection device according to claim 9, characterized in that: The fluid actuator includes a shell, a circulation channel is arranged inside the shell, the water inlet end of the circulation channel is connected to the cooling water circulation inlet pipeline, the water outlet end of the circulation channel is connected to the intermediate pipeline, an impeller is rotatably installed inside the circulation channel, and an active permanent magnet is embedded in the rotation center of the impeller; a passive permanent magnet is embedded in the rotation center of the passive external cooling fan, and the passive permanent magnet is arranged opposite to the active permanent magnet.

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