CN112638140A - Liquid cooling radiator and negative pressure structure, liquid cooling head, heat dissipation row thereof - Google Patents
Liquid cooling radiator and negative pressure structure, liquid cooling head, heat dissipation row thereof Download PDFInfo
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- CN112638140A CN112638140A CN202110140443.0A CN202110140443A CN112638140A CN 112638140 A CN112638140 A CN 112638140A CN 202110140443 A CN202110140443 A CN 202110140443A CN 112638140 A CN112638140 A CN 112638140A
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- 239000007788 liquid Substances 0.000 title claims abstract description 327
- 238000001816 cooling Methods 0.000 title claims abstract description 100
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims description 102
- 239000012530 fluid Substances 0.000 claims description 29
- 238000001802 infusion Methods 0.000 claims description 22
- 230000001502 supplementing effect Effects 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 12
- 230000002572 peristaltic effect Effects 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000003990 capacitor Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 239000000741 silica gel Substances 0.000 claims description 6
- 229910002027 silica gel Inorganic materials 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims description 2
- 239000000110 cooling liquid Substances 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 238000005192 partition Methods 0.000 claims description 2
- 230000008676 import Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005213 imbibition Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20281—Thermal management, e.g. liquid flow control
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The utility model provides a negative pressure structure, includes that first seal chamber locates the water pump import and installs the vacuum pump, locates the water pump exit including second seal chamber and installs the sensor, according to sensor signal control the vacuum pump opens and stops. A liquid cooling head comprises the negative pressure structure. A heat dissipation row comprises the negative pressure structure. A liquid cooling radiator comprises the negative pressure structure or the radiating heat radiator or the liquid cooling head.
Description
Technical Field
The invention relates to the technical field of liquid cooling heat dissipation for dissipating heat of electronic circuit equipment including a computer host, a power supply, a charging pile and the like, in particular to a liquid cooling radiator and a negative pressure structure, a liquid cooling head and a heat dissipation bar thereof.
Background
With the development of science and technology, the power consumption of electrified equipment such as computers, charging piles and the like is gradually increased, the heat dissipation requirement is urgent, three types of radiators with poor effects are available in the market at present, namely a passive radiator 1 with only heat dissipation fins and insufficient heat dissipation capacity is available; 2, the air-cooled radiator is additionally provided with a fan on the basis of radiating fins, so that the radiating capacity is enhanced, but the wind noise is large; 3 liquid cooling radiator, common liquid cooling radiator all is the malleation radiator in the existing market, because of the water pump to liquid cooling head pump water promptly, cold liquid is heated the thermal expansion simultaneously and leads to containing the liquid cooling head in key liquid highway section liquid way internal pressure be greater than external atmospheric pressure, in case the damage can outside weeping promptly, because present liquid cooling head interface is inside at the case again, so in case the weeping just causes serious electrical damage easily.
Disclosure of Invention
The liquid cooling radiator and the negative pressure structure, the liquid cooling head and the radiating bar thereof are provided to solve the problems of liquid leakage and derived electrical faults generated when the electronic circuit equipment adopts liquid cooling radiation.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
discloses a negative pressure structure, which comprises a first sealed cavity, a second sealed cavity and a control device, wherein the first sealed cavity is communicated with an inlet of a negative pressure device through a first outlet, the outlet of the negative pressure device is communicated with the external atmospheric pressure to form a first passage, so that gas or liquid in the first passage is discharged out of the first sealed cavity through the negative pressure device, the negative pressure device comprises a manual or electric or pneumatic negative pressure device, the manual negative pressure device comprises a needle cylinder or a gas cylinder, the electric or pneumatic negative pressure device comprises a diaphragm pump or a gear pump or a peristaltic pump,
the second sealing cavity is provided with a sensor, whether the pressure in the second sealing cavity is within a first preset pressure range or smaller than a first preset pressure value is judged according to the pressure, volume or weight of gas or liquid in the second sealing cavity, a first signal is output, the sensor comprises a capacitance, a resistance, a voltage, a current sensor, a pressure sensor or a position sensor, the first preset pressure range or the first preset pressure value is all smaller than the external atmospheric pressure,
the first sealed cavity or the second sealed cavity is a container which is made of a material capable of preventing cold liquid from leaking and can store solution without leaking and is made of silica gel or plastic or metal,
the first sealed cavity is connected in parallel through a third outlet below the liquid level of the first sealed cavity or connected in series through a second inlet and a third outlet below the liquid level of the first sealed cavity at the liquid inlet side of the liquid pump, the second sealed cavity is connected in parallel through a fifth outlet of the second sealed cavity or connected in series through a fourth inlet and a fifth outlet of the second sealed cavity at the liquid outlet side of the liquid pump, and the liquid pump is equipment for driving cold liquid to circulate in a liquid cooling radiator,
the control device comprises a manual type or an automatic type, when the negative pressure device is driven by electric energy, the control device is electrically connected with the negative pressure device, when the negative pressure device is driven by high-pressure air, the control device is connected with a pneumatic pipeline connected with the negative pressure device, the manual type comprises a switch module, the switch module comprises a touch switch, a self-locking switch, a time delay switch, a self-resetting switch, a ball valve or a liquid stopping clamp, the switch is connected in series in a circuit loop of the negative pressure device or arranged on the pneumatic pipeline to control the working state of the negative pressure device, the automatic type comprises a controller and a sensor which are electrically connected, the controller comprises an electromagnetic valve, a relay, a touch switch, a time delay switch, a diode, a triode, a pneumatic switch or a comprehensive control circuit, and the controller is connected in series or in parallel in the circuit loop of the negative pressure device or on the pneumatic pipeline, and the negative pressure device is controlled to be correspondingly opened or closed through the output signal of the sensor.
In at least one embodiment of the invention, the negative pressure structure is provided with a plurality of parallel or independent negative pressure devices.
In at least one embodiment of the present invention, the second sealed chamber is provided with a plurality of sensors.
In at least one embodiment of the present invention, the sensors are preset with different threshold values.
In at least one embodiment of the present invention, the negative pressure structure is provided with a plurality of control devices corresponding to the plurality of negative pressure devices or the plurality of sensors one by one, and the control device controls the start and the stop of the plurality of negative pressure devices simultaneously, or controls the start and the stop of different negative pressure devices respectively when the second sealing cavity is in different negative pressure ranges.
In at least one embodiment of the present invention, the plurality of control devices or the negative pressure device or the sensor are respectively provided with independent power supplies, which are not mutually affected. The risk caused by the stop of the negative pressure equipment is further reduced by the redundant arrangement or the stepped arrangement of the multiple groups of negative pressure devices, the sensors and the control device.
In at least one embodiment of the present invention, the first sealing chamber is provided with a fluid infusion port. The cold liquid replenishing problem of cold liquid evaporation after long-term operation is solved.
In at least one embodiment of the present invention, the fluid infusion port is located above the elevation of the first passage at the inner end of the first sealing chamber. The cold liquid is not easy to flow out to cause danger after being supplemented with the cold liquid.
In at least one embodiment of the present invention, the liquid replenishing port is provided with a pipeline leading to a liquid replenishing source, the pipeline is provided with a switch, the switch comprises a ball valve or a water stop clip, and the liquid replenishing source is a container for storing and containing cold replenishing liquid. The cold liquid supplementing port is constantly connected with the cold liquid supplementing port through a pipeline and is provided with a switch, so that the cold liquid supplementing port can be automatically supplemented with the cold liquid into the liquid cooling radiator through negative pressure only by turning on the switch, and then the switch is turned off. The electric appliance disaster caused by cold liquid splashing due to manual cold liquid supplement is avoided.
In at least one specific embodiment of the present invention, the first passage is provided with a one-way valve or a pipeline switch, the one-way valve is unidirectionally conducted from the first sealed cavity to the outside, the pipeline switch is conducted with the negative pressure device simultaneously or sequentially, so that gas or liquid in the first sealed cavity can only be discharged from the first sealed cavity unidirectionally under the action of the negative pressure device, and the pipeline switch includes a ball valve or an electromagnetic valve. The negative pressure device can keep the negative pressure environment for a long time without running constantly by arranging the one-way valve or the pipeline switch.
In at least one embodiment of the present invention, the negative pressure device can overcome a negative pressure generated by a liquid inlet of a liquid pump in the liquid cooling system when the liquid pump operates, and discharge gas or liquid in the first sealed cavity out of the first sealed cavity.
In at least one embodiment of the present invention, the pressure inside the second sealing chamber is within a second preset range, or between the second preset range and the outside atmospheric pressure, or above the outside atmospheric pressure, or when the accumulated starting time of the negative pressure device within a preset time reaches a preset value, the alarm includes an acoustic or optical or vibration alarm, and the second preset pressure range is between the first preset pressure range and the outside atmospheric pressure. The alarm is arranged to help judge whether the negative pressure device fails or not and whether the liquid cooling radiator is in danger or not.
In at least one embodiment of the present invention, the power-off device includes a relay, a mos switch tube, or a comprehensive control circuit, and is installed at a device power supply of the liquid cooling radiator in which the negative pressure structure is installed, and the device power supply of the liquid cooling radiator in which the negative pressure structure is installed is disconnected when the pressure in the second sealing chamber is within a second preset range, or when the pressure in the second sealing chamber is between the second preset range and the outside atmospheric pressure, or when the pressure is greater than the outside atmospheric pressure, or when the accumulated start time of the negative pressure device within a preset time reaches a preset value. The liquid cooling radiator is forcibly powered off under the dangerous condition by arranging the power-off equipment, so that electrical appliance disasters are avoided as much as possible.
In at least one embodiment of the present invention, the vacuum pump includes a safety device, the safety device is a cavity made of a liquid-proof material, an air hole is formed above a liquid level in the cavity to communicate with the outside atmosphere, and the safety device is disposed at the end of the first passage to store the liquid discharged by the negative pressure device, so as to prevent the liquid from generating an accident.
In at least one embodiment of the present invention, the energy source required by the negative pressure structure is from outside the device to be cooled. The negative pressure structure still operates after the power failure of the equipment to be cooled, and uninterrupted protection is formed.
In at least one embodiment of the present invention, the negative pressure structure is provided with a self-contained power source including a non-rechargeable battery or a super capacitor, and the self-contained power source can continue to operate after the external power source fails.
In at least one embodiment of the present invention, the liquid cooling radiator includes a liquid cooling head, a heat dissipation plate, a liquid pump, a negative pressure structure, a liquid tank, a liquid flow meter, or a pipe, wherein the liquid cooling radiator includes a first sealing cavity, the first sealing cavity includes a third sealing cavity, and the third sealing cavity includes an air hole, and/or the air hole communicates external atmosphere with cold liquid in the liquid cooling radiator.
In at least one embodiment of the present invention, the size of the air holes can be adjusted.
In at least one embodiment of the present invention, the vent may be closed.
In at least one embodiment of the present invention, a pressure difference switch is disposed inside or outside the air hole.
In at least one embodiment of the present invention, the air hole structure is located between a heat dissipation liquid outlet of the liquid-cooled heat sink and a liquid outlet of the first sealed cavity along a flow direction of the cold liquid. The liquid cooling radiator is richer in dynamic sense and more attractive in appearance when the liquid cooling radiator operates by arranging the air hole structure, and meanwhile, gas is timely supplemented when the negative pressure generated by the negative pressure device is too large, so that secondary hazards such as deformation and even water leakage of the radiator caused by too large negative pressure are avoided.
Discloses a liquid cooling head, which comprises a first sealing cavity, a second sealing cavity, a liquid pump, a heat dissipation cavity and a control device, wherein the first sealing cavity is communicated with an inlet of a negative pressure device through a first outlet, the outlet of the negative pressure device is communicated with the external atmospheric pressure to form a first passage, so that gas or liquid in the first passage is discharged out of the first sealing cavity through the negative pressure device, the negative pressure device comprises a manual or electric or pneumatic negative pressure device, the manual negative pressure device comprises a needle cylinder or a gas cylinder, the electric or pneumatic negative pressure device comprises a diaphragm pump or a gear pump or a peristaltic pump,
the second sealing cavity is provided with a sensor, whether the pressure in the second sealing cavity is within a first preset pressure range or smaller than a first preset pressure value is judged according to the pressure, volume or weight of gas or liquid in the second sealing cavity, a first signal is output, the sensor comprises a capacitance, a resistance, a voltage, a current sensor, a pressure sensor or a position sensor, the first preset pressure range or the first preset pressure value is all smaller than the external atmospheric pressure,
the first sealed cavity or the second sealed cavity is a container which is made of a material capable of preventing cold liquid from leaking and can store solution without leaking and is made of silica gel or plastic or metal,
the first sealed cavity is connected in parallel through a third outlet positioned below the liquid level of the first sealed cavity or connected in series through a second inlet and a third outlet positioned below the liquid level of the first sealed cavity at the liquid inlet side of the liquid pump, the second sealed cavity is connected in parallel through a fifth outlet of the second sealed cavity or connected in series through a fourth inlet and a fifth outlet of the second sealed cavity at the liquid outlet side of the liquid pump,
the heat dissipation cavity is formed by sealing and attaching the inner surface of a heat conduction plate and a cover plate, cooling liquid can flow in the heat dissipation cavity, a liquid inlet and a liquid outlet are formed, the heat dissipation cavity and the liquid pump are connected in series to form a liquid inlet path, the outer surface of the heat conduction plate is in thermal contact with a surface to be dissipated, the heat dissipation cavity can be combined with the first sealing cavity or the second sealing cavity,
the control device comprises a manual type or an automatic type, when the negative pressure device is driven by electric energy, the control device is electrically connected with the negative pressure device, when the negative pressure device is driven by high-pressure air, the control device is connected with a pneumatic pipeline connected with the negative pressure device, the manual type comprises a switch module, the switch module comprises a touch switch, a self-locking switch, a time delay switch, a self-resetting switch, a ball valve or a liquid stopping clamp, the switch is connected in series in a circuit loop of the negative pressure device or arranged on the pneumatic pipeline to control the working state of the negative pressure device, the automatic type comprises a controller and a sensor which are electrically connected, the controller comprises an electromagnetic valve, a relay, a touch switch, a time delay switch, a diode, a triode, a pneumatic switch or a comprehensive control circuit, and the controller is connected in series or in parallel in the circuit loop of the negative pressure device or on the pneumatic pipeline, and the negative pressure device is controlled to be correspondingly opened or closed through the output signal of the sensor. Thereby reduce the equipment volume through with negative pressure structure integration in the liquid cooling head, reduce the installation degree of difficulty, improve the security, simultaneously more succinct pleasing to the eye.
In at least one embodiment of the invention, the liquid cooling head is provided with a plurality of parallel or independent negative pressure devices,
in at least one embodiment of the present invention, the second capsule is provided with a plurality of sensors,
in at least one embodiment of the present invention, the sensors are preset with different threshold values,
in at least one embodiment of the present invention, the negative pressure structure is provided with a plurality of control devices corresponding to the plurality of negative pressure devices or the plurality of sensors one by one, and the control device controls the start and stop of a plurality of negative pressure devices simultaneously, or controls the start and stop of different negative pressure devices respectively when the second sealing cavity is in different negative pressure ranges,
in at least one embodiment of the present invention, the control devices or the negative pressure devices or the sensors are independently powered without affecting each other,
in at least one embodiment of the present invention, the first sealing chamber is provided with a fluid infusion port,
in at least one embodiment of the present invention, the fluid infusion port is located above the altitude of the first passage at the inner end of the first sealing chamber,
in at least one embodiment of the present invention, the liquid replenishing port is provided with a pipeline leading to a liquid replenishing source, the pipeline is provided with a switch, the switch comprises a ball valve or a water stop clip, and the liquid replenishing source is a container for storing and containing cold replenishing liquid.
In at least one specific embodiment of the present invention, the first passage is provided with a one-way valve or a pipeline switch, the one-way valve is unidirectionally conducted from the first sealed cavity to the outside, the pipeline switch is conducted with the negative pressure device simultaneously or sequentially, so that gas or liquid in the first sealed cavity can only be discharged from the first sealed cavity unidirectionally under the action of the negative pressure device, and the pipeline switch includes a ball valve or an electromagnetic valve.
In at least one embodiment of the present invention, the negative pressure device can overcome a negative pressure generated by a liquid inlet of a liquid pump in the liquid cooling system when the liquid pump operates, and discharge gas or liquid in the first sealed cavity out of the first sealed cavity.
In at least one embodiment of the present invention, the pressure inside the second sealing chamber is within a second preset range, or between the second preset range and the outside atmospheric pressure, or above the outside atmospheric pressure, or when the accumulated starting time of the negative pressure device within a preset time reaches a preset value, the alarm includes an acoustic or optical or vibration alarm, and the second preset pressure range is between the first preset pressure range and the outside atmospheric pressure.
In at least one embodiment of the present invention, the power-off device includes a relay, a mos switch tube, or a comprehensive control circuit, and is installed at a device power supply of the liquid cooling radiator in which the negative pressure structure is installed, and the device power supply of the liquid cooling radiator in which the liquid cooling head is installed is disconnected when the pressure in the second sealing chamber is within a second preset range, or between the second preset range and the outside atmospheric pressure, or greater than the outside atmospheric pressure, or when the accumulated start time of the negative pressure device within a preset time reaches a preset value.
In at least one embodiment of the present invention, the vacuum pump includes a safety device, the safety device is a cavity made of a liquid-proof material, an air hole is formed above a liquid level in the cavity to communicate with the outside atmosphere, and the safety device is disposed at the end of the first passage to store the liquid discharged by the negative pressure device, so as to prevent the liquid from generating an accident.
In at least one embodiment of the present invention, the energy source required by the negative pressure device or the control device is from outside the device to be cooled.
In at least one embodiment of the present invention, the negative pressure device or the control device is provided with a self-contained power source including a non-rechargeable battery or a super capacitor, and the self-contained power source can continue to operate after the external power source fails.
In at least one embodiment of the present invention, the liquid cooling radiator includes a third sealing cavity, the third sealing cavity includes an air hole, and/or the air hole communicates external atmosphere with cold liquid in the liquid cooling radiator.
In at least one embodiment of the present invention, the size of the air holes can be adjusted.
In at least one embodiment of the present invention, the vent may be closed.
In at least one embodiment of the present invention, a pressure difference switch is disposed inside or outside the air hole.
In at least one embodiment of the present invention, the air hole structure is located between a heat dissipation liquid outlet of the liquid-cooled heat sink and a liquid outlet of the first sealed cavity along a flow direction of the cold liquid.
Discloses a heat dissipation bar, which comprises a first sealing cavity, a second sealing cavity, a liquid pump, a heat exchange device and a control device, wherein the first sealing cavity is communicated with an inlet of a negative pressure device through a first outlet, the outlet of the negative pressure device is communicated with the external atmospheric pressure to form a first passage, so that gas or liquid in the first passage is discharged out of the first sealing cavity through the negative pressure device, the negative pressure device comprises a manual or electric or pneumatic negative pressure device, the manual negative pressure device comprises a needle cylinder or a gas cylinder, the electric or pneumatic negative pressure device comprises a diaphragm pump or a gear pump or a peristaltic pump,
the second sealing cavity is provided with a sensor, whether the pressure in the second sealing cavity is within a first preset pressure range or smaller than a first preset pressure value is judged according to the pressure, volume or weight of gas or liquid in the second sealing cavity, a first signal is output, the sensor comprises a capacitance, a resistance, a voltage, a current sensor, a pressure sensor or a position sensor, the first preset pressure range or the first preset pressure value is all smaller than the external atmospheric pressure,
the first sealed cavity or the second sealed cavity is a container which is made of a material capable of preventing cold liquid from leaking and can store solution without leaking and is made of silica gel or plastic or metal,
the first sealed cavity is connected in parallel through a third outlet positioned below the liquid level of the first sealed cavity or connected in series through a second inlet and a third outlet positioned below the liquid level of the first sealed cavity at the liquid inlet side of the liquid pump, the second sealed cavity is connected in parallel through a fifth outlet of the second sealed cavity or connected in series through a fourth inlet and a fifth outlet of the second sealed cavity at the liquid outlet side of the liquid pump,
the heat exchange device comprises a pipe group which is arranged in parallel, the pipe group is composed of heat conducting materials including copper or aluminum, one end of the pipe group is completely communicated with the first sealed cavity in a sealing mode, the other end of the pipe group is completely communicated with the second sealed cavity in a sealing mode, the first sealed cavity is isolated by a partition plate to form a first inlet sealed cavity and a first outlet sealed cavity to enable part of the pipe group to be communicated with the first inlet sealed cavity, the pipe group is remained to be communicated with the first outlet sealed cavity, the first inlet sealed cavity is provided with a first inlet, the first outlet sealed cavity is provided with a first outlet, cold liquid enters the first inlet sealed cavity from the first inlet and flows through part of the pipe group, the second sealed cavity is reached by the pipe group and finally flows out from the first outlet, and the first sealed cavity or the second sealed cavity can be combined with the first inlet sealed cavity or the first outlet sealed cavity or the second,
the control device comprises a manual type or an automatic type, when the negative pressure device is driven by electric energy, the control device is electrically connected with the negative pressure device, when the negative pressure device is driven by high-pressure air, the control device is connected with a pneumatic pipeline connected with the negative pressure device, the manual type comprises a switch module, the switch module comprises a touch switch, a self-locking switch, a time delay switch, a self-resetting switch, a ball valve or a liquid stopping clamp, the switch is connected in series in a circuit loop of the negative pressure device or arranged on the pneumatic pipeline to control the working state of the negative pressure device, the automatic type comprises a controller and a sensor which are electrically connected, the controller comprises an electromagnetic valve, a relay, a touch switch, a time delay switch, a diode, a triode, a pneumatic switch or a comprehensive control circuit, and the controller is connected in series or in parallel in the circuit loop of the negative pressure device or on the pneumatic pipeline, and the negative pressure device is controlled to be correspondingly opened or closed through the output signal of the sensor. Thereby reduce the equipment volume through with negative pressure structure integration in the liquid cooling head, reduce the installation degree of difficulty, improve the security, simultaneously more succinct pleasing to the eye.
In at least one embodiment of the invention, the heat dissipation bank is provided with a plurality of parallel or independent negative pressure devices.
In at least one embodiment of the present invention, the second sealed chamber is provided with a plurality of sensors.
In at least one embodiment of the present invention, the sensors are preset with different threshold values.
In at least one embodiment of the present invention, the negative pressure structure is provided with a plurality of control devices corresponding to the plurality of negative pressure devices or the plurality of sensors one by one, and the control device controls the start and the stop of the plurality of negative pressure devices simultaneously, or controls the start and the stop of different negative pressure devices respectively when the second sealing cavity is in different negative pressure ranges.
In at least one embodiment of the present invention, the plurality of control devices or the negative pressure device or the sensor are respectively provided with independent power supplies, which are not mutually affected.
In at least one embodiment of the present invention, the first sealing chamber is provided with a fluid infusion port.
In at least one embodiment of the present invention, the fluid infusion port is located above the elevation of the first passage at the inner end of the first sealing chamber.
In at least one embodiment of the present invention, the liquid replenishing port is provided with a pipeline leading to a liquid replenishing source, the pipeline is provided with a switch, the switch comprises a ball valve or a water stop clip, and the liquid replenishing source is a container for storing and containing cold replenishing liquid.
In at least one specific embodiment of the present invention, the first passage is provided with a one-way valve or a pipeline switch, the one-way valve is unidirectionally conducted from the first sealed cavity to the outside, the pipeline switch is conducted with the negative pressure device simultaneously or sequentially, so that gas or liquid in the first sealed cavity can only be discharged from the first sealed cavity unidirectionally under the action of the negative pressure device, and the pipeline switch includes a ball valve or an electromagnetic valve.
In at least one embodiment of the present invention, the negative pressure device can overcome a negative pressure generated by a liquid inlet of a liquid pump in the liquid cooling system when the liquid pump operates, and discharge gas or liquid in the first sealed cavity out of the first sealed cavity.
In at least one embodiment of the present invention, the pressure inside the second sealing chamber is within a second preset range, or between the second preset range and the outside atmospheric pressure, or above the outside atmospheric pressure, or when the accumulated starting time of the negative pressure device within a preset time reaches a preset value, the alarm includes an acoustic or optical or vibration alarm, and the second preset pressure range is between the first preset pressure range and the outside atmospheric pressure.
In at least one embodiment of the present invention, the power-off device includes a relay, a mos switch tube, or a comprehensive control circuit, and is installed at a device power supply of the liquid cooling radiator in which the negative pressure structure is installed, and the device power supply of the liquid cooling radiator in which the heat dissipation bar is installed is disconnected when the pressure in the second sealing chamber is within a second preset range, or between the second preset range and the outside atmospheric pressure, or greater than the outside atmospheric pressure, or when the accumulated start time of the negative pressure device within a preset time reaches a preset value.
In at least one embodiment of the present invention, the vacuum pump includes a safety device, the safety device is a cavity made of a liquid-proof material, an air hole is formed above a liquid level in the cavity to communicate with the outside atmosphere, and the safety device is disposed at the end of the first passage to store the liquid discharged by the negative pressure device, so as to prevent the liquid from generating an accident.
In at least one embodiment of the present invention, the energy source required by the negative pressure device or the control device is from outside the device to be cooled.
In at least one embodiment of the present invention, the negative pressure device or the control device is provided with a self-contained power source including a non-rechargeable battery or a super capacitor, and the self-contained power source can continue to operate after the external power source fails.
In at least one embodiment of the present invention, the liquid cooling radiator includes a third sealing cavity, the third sealing cavity includes an air hole, and/or the air hole communicates external atmosphere with cold liquid in the liquid cooling radiator.
In at least one embodiment of the present invention, the size of the air holes can be adjusted.
In at least one embodiment of the present invention, the vent may be closed.
In at least one embodiment of the present invention, a pressure difference switch is disposed inside or outside the air hole.
In at least one embodiment of the present invention, the air hole structure is located between a heat dissipation liquid outlet of the liquid-cooled heat sink and a liquid outlet of the first sealed cavity along a flow direction of the cold liquid.
A liquid-cooled radiator is disclosed, which comprises a negative pressure structure or a liquid-cooled head or a radiating bar.
The invention has the beneficial effects that:
the first sealing cavity is provided with a negative pressure structure to enable the liquid cooling radiator to form negative pressure so as to avoid damage of the liquid cooling radiator and further avoid damage of an electric appliance caused by liquid leakage. Through setting up the sensor in water pump delivery port department to need not to consider the water pump parameter and set up different thresholds for different water pumps, only need unify and establish the sensor threshold and just can make whole liquid cooling system keep the negative pressure state through the negative pressure device for being less than external atmospheric pressure, obtain very big commonality. The control device is arranged to automatically control the negative pressure device to start or stop according to the pressure condition in the liquid cooling radiator. The starting times of the negative pressure device are reduced by arranging the time delay device, the noise is reduced, and the reliability is improved. The air hole structure enables air bubbles to appear in liquid path circulation, the system is more dynamic and beautiful, the negative pressure device recovers to a preset pressure range as soon as possible after being started to cause overlarge negative pressure, and meanwhile, the starting times of the negative pressure device are increased, and the negative pressure device is prevented from being continuously damaged and unknown. Through locating water pump water inlet department with the fluid infusion mouth, make cold liquid can pass through among the negative pressure device imbibition liquid cooling radiator and flow to the centrifugal pump in, make the centrifugal pump move smoothly and form cold liquid circulation, further improve the security through setting up alarm or outage equipment or self-contained power. The reliability of the equipment is improved through the redundancy arrangement. The negative pressure structure is integrated on the liquid cooling head or the radiating bar, so that the attractiveness of the equipment is improved, and the installation difficulty is reduced.
Drawings
Fig. 1 is a structure diagram of a preferred negative pressure structure.
Figure 2 is a schematic diagram of a preferred liquid-cooled head.
Description of the main reference numerals:
1-negative pressure structure, 11-first sealed cavity, 111-first outlet, 112-second inlet, 113-third outlet, 114-fluid infusion port, 12-second sealed cavity, 121-fourth inlet, 122-fifth outlet, 13-negative pressure device, 131-negative pressure device inlet, 132-negative pressure device outlet, 133-electromagnetic valve, 14-sensor, 15-control device, 2-liquid cooling head, 21-heat dissipation cavity, 22-liquid cooling head inlet, 23-liquid cooling head outlet and 3-liquid pump.
Detailed Description
In order to more clearly illustrate the technical solutions of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings or embodiments can be obtained according to the drawings or the embodiments without any inventive step. All other embodiments obtained by a person skilled in the art without making any inventive step are within the scope of protection of the present invention.
At least one embodiment of the present invention is shown in fig. 1, where the negative pressure structure 1 includes a first sealed cavity 11, a second sealed cavity 12, a negative pressure device 13, a sensor 14, and a control device 15, the first sealed cavity 11 includes a first outlet 111 communicated with an inlet 131 of the negative pressure device to form a first passage, the first passage is provided with a solenoid valve 133, the first sealed cavity includes a second inlet 112 communicated with a water outlet of other components of the liquid-cooled radiator and a third outlet 113 located below a liquid level and communicated with an inlet of a liquid pump in the radiator, the second sealed cavity 12 includes a fourth inlet 121 communicated with an outlet of the liquid pump in the liquid-cooled radiator, the fifth outlet 122 communicated with an inlet of other components in the liquid-cooled radiator to form a cold-liquid circulation passage, and the sensor 14 is electrically connected with the negative pressure device 13, the control device 15, and the solenoid valve 133 and connected with an external power supply, so that the sensor 14 sends a start signal to the control device when detecting that a negative pressure in the second sealed 15, after receiving the start signal, the control device 15 controls the negative pressure device 13 to switch on the power supply for starting and makes the electromagnetic valve 133 conduct, so as to discharge the gas or liquid in the first sealed cavity 11 out of the first sealed cavity 11, until the sensor 14 detects that the pressure in the second sealed cavity 12 reaches the preset negative pressure, a stop signal is sent to the controller 15, and the controller 15 immediately or with a delay cuts off the power supply of the negative pressure device 13 to stop the operation thereof and makes the electromagnetic valve 133 close and cut off the first passage.
Preferably, the negative pressure device 13 may be a diaphragm pump or a peristaltic pump, the sensor 14 may be a differential pressure switch or a pressure transmitter, the control device 15 may be a time delay relay or a comprehensive control circuit, the number of times of starting and stopping the negative pressure device may be reduced by the time delay device when the sensor 14 has only one threshold, and the negative pressure may be controlled within a preset range by setting a start or stop command for the plurality of thresholds respectively when the sensor 14 has the plurality of thresholds.
Preferably, the fluid infusion port 114 is disposed in the first sealed cavity 11, and the height of the fluid infusion port is higher than that of the first path at the inner end of the first sealed cavity 11, when the fluid in the first sealed cavity 11 is insufficient, that is, the height of the fluid level in the first sealed cavity 11 is lower than that of the first path, and fluid infusion is required at the inner end of the first sealed cavity 11, the fluid infusion port 114 on the fluid level can be safely opened to avoid leakage of the fluid during normal operation of the fluid-cooled radiator, and meanwhile, because the fluid in the fluid-cooled radiator maintains a negative pressure state, after the fluid infusion port 114 is opened, the hydraulic pressure rises to start the negative pressure device 13, and after the fluid infusion tube is hermetically mounted and the prepared fluid infusion is immersed at the tail end of the fluid-cooled radiator, the fluid can be sucked into the first sealed cavity 11 through the negative pressure device 13, so as to realize automatic filling of the fluid.
Preferably, the liquid cooling radiator comprises an air hole structure in a cold liquid channel, the air hole structure is provided with an air hole so that cold liquid is communicated with external atmosphere, and the external atmosphere enters cold liquid circulation under the action of negative pressure
Preferably, the vent may be sized until closed.
Preferably, the air hole structure is provided with a pressure difference switch, when the pressure in the air hole is too small, part of air is conducted and supplemented, so that the negative pressure in the liquid cooling radiator is in a normal range, and the phenomenon that the negative pressure in the liquid cooling radiator is too strong to cause deformation of parts or pipelines so as to cause damage or failure is avoided.
At least one embodiment of the invention is shown in fig. 2, the liquid cooling head 2 integrates the negative pressure structure 1, the heat dissipation cavity 21 and the liquid pump 3, cold liquid enters from the liquid cooling head inlet 22 and then flows through the first sealing cavity 11, the heat dissipation cavity 21, the liquid pump 3 and the second sealing cavity 12 in sequence, and finally flows out of the liquid cooling head 2 through the liquid cooling head outlet 23 and flows into other parts of the liquid cooling radiator to form circulation.
After the scheme is adopted, the negative pressure of the cold liquid in the liquid cooling radiator is kept, so that the cold liquid in the liquid cooling system is prevented from leaking outwards. Through setting up the sensor in water pump delivery port department to need not to consider the water pump parameter and set up different thresholds for different water pumps, only need unify and establish the sensor threshold and just can make whole liquid cooling system keep the negative pressure state through the negative pressure device for being less than external atmospheric pressure, obtain very big commonality. The control device is arranged to automatically control the negative pressure device to start or stop according to the pressure condition in the liquid cooling radiator. The control device has a time delay function so as to reduce the starting times of the negative pressure device, reduce noise and improve reliability. The air hole structure enables air bubbles to appear in liquid path circulation, the system is more dynamic and beautiful, the negative pressure device recovers to a preset pressure range as soon as possible after being started to cause overlarge negative pressure, and meanwhile, the starting times of the negative pressure device are increased, and the negative pressure device is prevented from being continuously damaged and unknown. Through locating water pump water inlet department with the fluid infusion mouth, make cold liquid can pass through among the negative pressure device imbibition liquid cooling radiator and flow to the centrifugal pump in, make the centrifugal pump move smoothly and form cold liquid circulation, further improve the security through setting up alarm or outage equipment or self-contained power.
Although the present invention has been described in detail with reference to the foregoing embodiments, other modifications, equivalents, and improvements can be made by those skilled in the art without departing from the spirit and scope of the invention.
Claims (10)
1. A negative pressure structure is characterized in that: the device comprises a first sealed cavity, a second sealed cavity and a control device, wherein the first sealed cavity is communicated with an inlet of a negative pressure device through a first outlet, the outlet of the negative pressure device is communicated with external atmospheric pressure to form a first passage, so that gas or liquid in the first passage is discharged out of the first sealed cavity through the negative pressure device, the negative pressure device comprises a manual or electric or pneumatic negative pressure device, the manual negative pressure device comprises a needle cylinder or a gas cylinder, the electric or pneumatic negative pressure device comprises a diaphragm pump or a gear pump or a peristaltic pump,
the second sealing cavity is provided with a sensor, whether the pressure in the second sealing cavity is within a first preset pressure range or smaller than a first preset pressure value is judged according to the pressure, volume or weight of gas or liquid in the second sealing cavity, a first signal is output, the sensor comprises a capacitance, a resistance, a voltage, a current sensor, a pressure sensor or a position sensor, the first preset pressure range or the first preset pressure value is all smaller than the external atmospheric pressure,
the first sealed cavity or the second sealed cavity is a container which is made of a material capable of preventing cold liquid from leaking and can store solution without leaking and is made of silica gel or plastic or metal,
the first sealed cavity is connected in parallel through a third outlet below the liquid level of the first sealed cavity or connected in series through a second inlet and a third outlet below the liquid level of the first sealed cavity at the liquid inlet side of the liquid pump, the second sealed cavity is connected in parallel through a fifth outlet of the second sealed cavity or connected in series through a fourth inlet and a fifth outlet of the second sealed cavity at the liquid outlet side of the liquid pump, and the liquid pump is equipment for driving cold liquid to circulate in a liquid cooling radiator,
the control device comprises a manual type or an automatic type, when the negative pressure device is driven by electric energy, the control device is electrically connected with the negative pressure device, when the negative pressure device is driven by high-pressure air, the control device is connected with a pneumatic pipeline connected with the negative pressure device, the manual type comprises a switch module, the switch module comprises a touch switch, a self-locking switch, a time delay switch, a self-resetting switch, a ball valve or a liquid stopping clamp, the switch is connected in series in a circuit loop of the negative pressure device or arranged on the pneumatic pipeline to control the working state of the negative pressure device, the automatic type comprises a controller and a sensor which are electrically connected, the controller comprises an electromagnetic valve, a relay, a touch switch, a time delay switch, a diode, a triode, a pneumatic switch or a comprehensive control circuit, and the controller is connected in series or in parallel in the circuit loop of the negative pressure device or on the pneumatic pipeline, the negative pressure device is controlled to be correspondingly opened or closed through the output signal of the sensor,
and/or the negative pressure structure is provided with a plurality of parallel or independent negative pressure devices,
and/or the second sealed chamber is provided with a plurality of sensors,
and/or the sensors are preset with mutually different threshold values,
and/or the negative pressure structure is provided with a plurality of control devices which are in one-to-one correspondence with the plurality of negative pressure devices or the plurality of sensors and simultaneously control the start and stop of the plurality of negative pressure devices, or respectively control the start and stop of different negative pressure devices when the second sealing cavity is in different negative pressure ranges,
and/or the control devices or the negative pressure devices or the sensors are respectively provided with independent power supplies and do not influence each other.
2. A negative pressure structure according to claim 1, wherein: the first sealing cavity is provided with a fluid infusion port,
and/or the fluid infusion port is positioned above the altitude of the first passage at the inner end of the first sealing cavity,
and/or the liquid supplementing port is provided with a pipeline leading to a liquid supplementing source, the pipeline is provided with a switch, the switch comprises a ball valve or a water stop clamp, and the liquid supplementing source is a container for storing and containing cold supplementing liquid.
3. A negative pressure structure according to claim 1, wherein: the first passage is provided with a one-way valve or a pipeline switch, the one-way valve is conducted from the first sealing cavity to the outside in a one-way, the pipeline switch is conducted with the negative pressure device simultaneously or sequentially, so that gas or liquid in the first sealing cavity can be discharged out of the first sealing cavity in a one-way only under the action of the negative pressure device, the pipeline switch comprises a ball valve or an electromagnetic valve,
and/or the negative pressure device can overcome the negative pressure generated by the liquid inlet of the liquid pump in the liquid cooling system when the liquid pump runs and discharge the gas or liquid in the first sealing cavity out of the first sealing cavity,
and/or comprises an alarm, the alarm starts to alarm when the pressure in the second sealing cavity is within a second preset range, or between the second preset range and the outside atmospheric pressure, or is greater than the outside atmospheric pressure, or when the accumulated starting time of the negative pressure device within a preset time reaches a preset value, the alarm comprises an acoustic or optical or vibration alarm, the second preset pressure range is between the first preset pressure range and the outside atmospheric pressure,
and/or comprises a power-off device, wherein the power-off device comprises a relay or a mos switch tube or a comprehensive control circuit, is arranged at a device power supply of the liquid cooling radiator provided with the negative pressure structure, and is used for disconnecting the device power supply of the liquid cooling radiator provided with the negative pressure structure when the pressure in the second sealing cavity is within a second preset range or between the second preset range and the external atmospheric pressure or is greater than the external atmospheric pressure or when the accumulated starting time of the negative pressure device within preset time reaches a preset value,
and/or comprises a safety device, the safety device is a cavity made of a liquid leakage-proof material, an air hole communicated with the outside atmosphere is arranged above the liquid level in the cavity, the safety device is arranged at the tail end of the first passage to store the liquid discharged by the negative pressure device, so that the liquid is prevented from generating accidents,
and/or the energy required by the negative pressure structure comes from the outside of the equipment to be radiated,
and/or the negative pressure structure is provided with a self-contained power supply which comprises a non-rechargeable battery or a super capacitor, and can continue to work through the self-contained power supply after the external power supply fails,
and/or comprises an air hole structure, the air hole structure is connected in series or in parallel in a liquid path of the liquid cooling radiator or integrated on any component of the liquid cooling radiator, including a liquid cooling head, a heat dissipation exhaust or liquid pump, a negative pressure structure, a liquid tank, a liquid flow meter or a pipeline, the air hole structure comprises a third sealing cavity, an air hole is arranged on the third sealing cavity, and/or the air hole is communicated with the outside atmosphere and the cold liquid in the liquid cooling radiator,
and/or the air holes may be adjustable in size,
and/or the air vent may be closed,
and/or the inner side or the outer side of the air hole is provided with a pressure difference switch,
and/or the air hole structure is positioned between a heat dissipation liquid outlet in the liquid cooling radiator along the flowing direction of the cold liquid and a liquid outlet of the first sealing cavity.
4. A liquid cooling head, characterized in that: the device comprises a first sealed cavity, a second sealed cavity, a liquid pump, a heat dissipation cavity and a control device, wherein the first sealed cavity is communicated with an inlet of a negative pressure device through a first outlet, the outlet of the negative pressure device is communicated with the external atmospheric pressure to form a first passage, so that gas or liquid in the first passage is discharged out of the first sealed cavity through the negative pressure device, the negative pressure device comprises a manual or electric or pneumatic negative pressure device, the manual negative pressure device comprises a needle cylinder or a gas cylinder, the electric or pneumatic negative pressure device comprises a diaphragm pump or a gear pump or a peristaltic pump,
the second sealing cavity is provided with a sensor, whether the pressure in the second sealing cavity is within a first preset pressure range or smaller than a first preset pressure value is judged according to the pressure, volume or weight of gas or liquid in the second sealing cavity, a first signal is output, the sensor comprises a capacitance, a resistance, a voltage, a current sensor, a pressure sensor or a position sensor, the first preset pressure range or the first preset pressure value is all smaller than the external atmospheric pressure,
the first sealed cavity or the second sealed cavity is a container which is made of a material capable of preventing cold liquid from leaking and can store solution without leaking and is made of silica gel or plastic or metal,
the first sealed cavity is connected in parallel through a third outlet positioned below the liquid level of the first sealed cavity or connected in series through a second inlet and a third outlet positioned below the liquid level of the first sealed cavity at the liquid inlet side of the liquid pump, the second sealed cavity is connected in parallel through a fifth outlet of the second sealed cavity or connected in series through a fourth inlet and a fifth outlet of the second sealed cavity at the liquid outlet side of the liquid pump,
the heat dissipation cavity is formed by sealing and attaching the inner surface of a heat conduction plate and a cover plate, cooling liquid can flow in the heat dissipation cavity, a liquid inlet and a liquid outlet are formed, the heat dissipation cavity and the liquid pump are connected in series to form a liquid inlet path, the outer surface of the heat conduction plate is in thermal contact with a surface to be dissipated, the heat dissipation cavity can be combined with the first sealing cavity or the second sealing cavity,
the control device comprises a manual type or an automatic type, when the negative pressure device is driven by electric energy, the control device is electrically connected with the negative pressure device, when the negative pressure device is driven by high-pressure air, the control device is connected with a pneumatic pipeline connected with the negative pressure device, the manual type comprises a switch module, the switch module comprises a touch switch, a self-locking switch, a time delay switch, a self-resetting switch, a ball valve or a liquid stopping clamp, the switch is connected in series in a circuit loop of the negative pressure device or arranged on the pneumatic pipeline to control the working state of the negative pressure device, the automatic type comprises a controller and a sensor which are electrically connected, the controller comprises an electromagnetic valve, a relay, a touch switch, a time delay switch, a diode, a triode, a pneumatic switch or a comprehensive control circuit, and the controller is connected in series or in parallel in the circuit loop of the negative pressure device or on the pneumatic pipeline, and the negative pressure device is controlled to be correspondingly opened or closed through the output signal of the sensor.
5. A liquid cooling head according to claim 4, wherein: the liquid cooling head is provided with a plurality of parallel or independent negative pressure devices,
and/or the second sealed chamber is provided with a plurality of sensors,
and/or the sensors are preset with mutually different threshold values,
and/or the negative pressure structure is provided with a plurality of control devices which are in one-to-one correspondence with the plurality of negative pressure devices or the plurality of sensors and simultaneously control the start and stop of the plurality of negative pressure devices, or respectively control the start and stop of different negative pressure devices when the second sealing cavity is in different negative pressure ranges,
and/or the control devices or the negative pressure devices or the sensors are respectively provided with independent power supplies without mutual influence,
and/or the first sealing cavity is provided with a fluid infusion port,
and/or the fluid infusion port is positioned above the altitude of the first passage at the inner end of the first sealing cavity,
and/or the liquid supplementing port is provided with a pipeline leading to a liquid supplementing source, the pipeline is provided with a switch, the switch comprises a ball valve or a water stop clamp, and the liquid supplementing source is a container for storing and containing cold supplementing liquid.
6. A liquid cooling head according to claim 4, wherein: the first passage is provided with a one-way valve or a pipeline switch, the one-way valve is conducted from the first sealing cavity to the outside in a one-way, the pipeline switch is conducted with the negative pressure device simultaneously or sequentially, so that gas or liquid in the first sealing cavity can be discharged out of the first sealing cavity in a one-way only under the action of the negative pressure device, the pipeline switch comprises a ball valve or an electromagnetic valve,
and/or the negative pressure device can overcome the negative pressure generated by the liquid inlet of the liquid pump in the liquid cooling system when the liquid pump runs and discharge the gas or liquid in the first sealing cavity out of the first sealing cavity,
and/or comprises an alarm, the alarm starts to alarm when the pressure in the second sealing cavity is within a second preset range, or between the second preset range and the outside atmospheric pressure, or is greater than the outside atmospheric pressure, or when the accumulated starting time of the negative pressure device within a preset time reaches a preset value, the alarm comprises an acoustic or optical or vibration alarm, the second preset pressure range is between the first preset pressure range and the outside atmospheric pressure,
and/or comprises a power-off device, wherein the power-off device comprises a relay or a mos switch tube or a comprehensive control circuit, is arranged at a device power supply of the liquid cooling radiator provided with the negative pressure structure, and is used for disconnecting the device power supply of the liquid cooling radiator provided with the liquid cooling head when the pressure in the second sealing cavity is within a second preset range or between the second preset range and the external atmospheric pressure or is greater than the external atmospheric pressure or when the accumulated starting time of the negative pressure device within preset time reaches a preset value,
and/or comprises a safety device, the safety device is a cavity made of a liquid leakage-proof material, an air hole communicated with the outside atmosphere is arranged above the liquid level in the cavity, the safety device is arranged at the tail end of the first passage to store the liquid discharged by the negative pressure device, so that the liquid is prevented from generating accidents,
and/or the energy source required by the negative pressure device or the control device is from the outside of the device to be radiated,
and/or the negative pressure device or the control device is provided with a self-contained power supply which comprises a non-rechargeable battery or a super capacitor, and can continue to work through the self-contained power supply after the external power supply fails,
and/or comprises an air hole structure, the air hole structure is connected in series or in parallel in a liquid path of the liquid cooling radiator or integrated on any component of the liquid cooling radiator, including a liquid cooling head, a heat dissipation exhaust or a liquid pump, a liquid tank, a liquid flow meter or a pipeline, the air hole structure comprises a third sealing cavity, an air hole is arranged on the third sealing cavity, and/or the air hole is communicated with the outside atmosphere and the cold liquid in the liquid cooling radiator,
and/or the air holes may be adjustable in size,
and/or the air vent may be closed,
and/or the inner side or the outer side of the air hole is provided with a pressure difference switch,
and/or the air hole structure is positioned between a heat dissipation liquid outlet in the liquid cooling radiator along the flowing direction of the cold liquid and a liquid outlet of the first sealing cavity.
7. A heat dissipation row is characterized in that: the device comprises a first sealed cavity, a second sealed cavity, a liquid pump, a heat exchange device and a control device, wherein the first sealed cavity is communicated with an inlet of a negative pressure device through a first outlet, the outlet of the negative pressure device is communicated with the external atmospheric pressure to form a first passage, so that gas or liquid in the first passage is discharged out of the first sealed cavity through the negative pressure device, the negative pressure device comprises a manual or electric or pneumatic negative pressure device, the manual negative pressure device comprises a needle cylinder or a gas cylinder, the electric or pneumatic negative pressure device comprises a diaphragm pump or a gear pump or a peristaltic pump,
the second sealing cavity is provided with a sensor, whether the pressure in the second sealing cavity is within a first preset pressure range or smaller than a first preset pressure value is judged according to the pressure, volume or weight of gas or liquid in the second sealing cavity, a first signal is output, the sensor comprises a capacitance, a resistance, a voltage, a current sensor, a pressure sensor or a position sensor, the first preset pressure range or the first preset pressure value is all smaller than the external atmospheric pressure,
the first sealed cavity or the second sealed cavity is a container which is made of a material capable of preventing cold liquid from leaking and can store solution without leaking and is made of silica gel or plastic or metal,
the first sealed cavity is connected in parallel through a third outlet positioned below the liquid level of the first sealed cavity or connected in series through a second inlet and a third outlet positioned below the liquid level of the first sealed cavity at the liquid inlet side of the liquid pump, the second sealed cavity is connected in parallel through a fifth outlet of the second sealed cavity or connected in series through a fourth inlet and a fifth outlet of the second sealed cavity at the liquid outlet side of the liquid pump,
the heat exchange device comprises a pipe group which is arranged in parallel, the pipe group is composed of heat conducting materials including copper or aluminum, one end of the pipe group is completely communicated with the first sealed cavity in a sealing mode, the other end of the pipe group is completely communicated with the second sealed cavity in a sealing mode, the first sealed cavity is isolated by a partition plate to form a first inlet sealed cavity and a first outlet sealed cavity to enable part of the pipe group to be communicated with the first inlet sealed cavity, the pipe group is remained to be communicated with the first outlet sealed cavity, the first inlet sealed cavity is provided with a first inlet, the first outlet sealed cavity is provided with a first outlet, cold liquid enters the first inlet sealed cavity from the first inlet and flows through part of the pipe group, the second sealed cavity is reached by the pipe group and finally flows out from the first outlet, and the first sealed cavity or the second sealed cavity can be combined with the first inlet sealed cavity or the first outlet sealed cavity or the second,
the control device comprises a manual type or an automatic type, when the negative pressure device is driven by electric energy, the control device is electrically connected with the negative pressure device, when the negative pressure device is driven by high-pressure air, the control device is connected with a pneumatic pipeline connected with the negative pressure device, the manual type comprises a switch module, the switch module comprises a touch switch, a self-locking switch, a time delay switch, a self-resetting switch, a ball valve or a liquid stopping clamp, the switch is connected in series in a circuit loop of the negative pressure device or arranged on the pneumatic pipeline to control the working state of the negative pressure device, the automatic type comprises a controller and a sensor which are electrically connected, the controller comprises an electromagnetic valve, a relay, a touch switch, a time delay switch, a diode, a triode, a pneumatic switch or a comprehensive control circuit, and the controller is connected in series or in parallel in the circuit loop of the negative pressure device or on the pneumatic pipeline, and the negative pressure device is controlled to be correspondingly opened or closed through the output signal of the sensor.
8. A heat dissipation bar as set forth in claim 1, wherein: the heat dissipation row is provided with a plurality of parallel or independent negative pressure devices,
and/or the second sealed chamber is provided with a plurality of sensors,
and/or the sensors are preset with mutually different threshold values,
and/or the negative pressure structure is provided with a plurality of control devices which are in one-to-one correspondence with the plurality of negative pressure devices or the plurality of sensors and simultaneously control the start and stop of the plurality of negative pressure devices, or respectively control the start and stop of different negative pressure devices when the second sealing cavity is in different negative pressure ranges,
and/or the control devices or the negative pressure devices or the sensors are respectively provided with independent power supplies without mutual influence,
and/or the first sealing cavity is provided with a fluid infusion port,
and/or the fluid infusion port is positioned above the altitude of the first passage at the inner end of the first sealing cavity,
and/or the liquid supplementing port is provided with a pipeline leading to a liquid supplementing source, the pipeline is provided with a switch, the switch comprises a ball valve or a water stop clamp, and the liquid supplementing source is a container for storing and containing cold supplementing liquid.
9. A heat dissipation bar as set forth in claim 1, wherein: the first passage is provided with a one-way valve or a pipeline switch, the one-way valve is conducted from the first sealing cavity to the outside in a one-way, the pipeline switch is conducted with the negative pressure device simultaneously or sequentially, so that gas or liquid in the first sealing cavity can be discharged out of the first sealing cavity in a one-way only under the action of the negative pressure device, the pipeline switch comprises a ball valve or an electromagnetic valve,
and/or the negative pressure device can overcome the negative pressure generated by the liquid inlet of the liquid pump in the liquid cooling system when the liquid pump runs and discharge the gas or liquid in the first sealing cavity out of the first sealing cavity,
and/or comprises an alarm, the alarm starts to alarm when the pressure in the second sealing cavity is within a second preset range, or between the second preset range and the outside atmospheric pressure, or is greater than the outside atmospheric pressure, or when the accumulated starting time of the negative pressure device within a preset time reaches a preset value, the alarm comprises an acoustic or optical or vibration alarm, the second preset pressure range is between the first preset pressure range and the outside atmospheric pressure,
and/or comprises a power-off device, wherein the power-off device comprises a relay or a mos switch tube or a comprehensive control circuit, is arranged at a device power supply of the liquid cooling radiator provided with the negative pressure structure, and is used for disconnecting the device power supply of the liquid cooling radiator provided with the heat dissipation bar when the pressure in the second sealing cavity is within a second preset range or between the second preset range and the external atmospheric pressure or is greater than the external atmospheric pressure or when the accumulated starting time of the negative pressure device within preset time reaches a preset value,
and/or comprises a safety device, the safety device is a cavity made of a liquid leakage-proof material, an air hole communicated with the outside atmosphere is arranged above the liquid level in the cavity, the safety device is arranged at the tail end of the first passage to store the liquid discharged by the negative pressure device, so that the liquid is prevented from generating accidents,
and/or the energy source required by the negative pressure device or the control device is from the outside of the device to be radiated,
and/or the negative pressure device or the control device is provided with a self-contained power supply which comprises a non-rechargeable battery or a super capacitor, and can continue to work through the self-contained power supply after the external power supply fails,
and/or comprises an air hole structure, the air hole structure is connected in series or in parallel in a liquid path of the liquid cooling radiator or integrated on any component of the liquid cooling radiator, including a liquid cooling head, a heat dissipation exhaust or a liquid pump, a liquid tank, a liquid flow meter or a pipeline, the air hole structure comprises a third sealing cavity, an air hole is arranged on the third sealing cavity, and/or the air hole is communicated with the outside atmosphere and the cold liquid in the liquid cooling radiator,
and/or the air holes may be adjustable in size,
and/or the air vent may be closed,
and/or the inner side or the outer side of the air hole is provided with a pressure difference switch,
and/or the air hole structure is positioned between a heat dissipation liquid outlet in the liquid cooling radiator along the flowing direction of the cold liquid and a liquid outlet of the first sealing cavity.
10. A liquid cooling radiator is characterized in that: comprising a negative pressure structure or a liquid cooling head or a heat sink as claimed in any one of claims 1 to 9.
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| CN113382617A (en) * | 2021-07-21 | 2021-09-10 | 程嘉俊 | Liquid cooling radiator and negative pressure pump box and negative pressure structure thereof |
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