阅读说明：本技术 水冷系统的水箱水位感测装置 (Water tank water level sensing device of water cooling system ) 是由 孙颂贤 于 2020-05-22 设计创作，主要内容包括：本发明提供一种水冷系统的水箱水位感测装置,包括一水箱本体、一浮动单元、一设有一磁感应器的水位感测单元与一控制单元,该水箱本体具有一容水腔室、一入水口及一出水口,该浮动单元设于该容水腔室内,且设有一浮筒、一转动部与一连接该浮筒与该转动部的连接部,该转动部枢设于该容水腔室内,且外侧设有一磁性区,该磁感应器设于对应该转动部磁性区的水箱本体的一外侧,该控制单元根据该磁感应器感测该磁性区的一转动角度传送的一感测信号做处理,并产生一水位信息,通过本发明此设计使得可达到感测水箱内水位高度的效果。(The invention provides a water tank water level sensing device of a water cooling system, which comprises a water tank body, a floating unit, a water level sensing unit provided with a magnetic inductor and a control unit, wherein the water tank body is provided with a water containing cavity, a water inlet and a water outlet, the floating unit is arranged in the water containing cavity and is provided with a floating drum, a rotating part and a connecting part for connecting the floating drum and the rotating part, the rotating part is pivoted in the water containing cavity, the outer side of the rotating part is provided with a magnetic area, the magnetic inductor is arranged on the outer side of the water tank body corresponding to the magnetic area of the rotating part, and the control unit processes a sensing signal transmitted by the magnetic inductor according to a rotating angle of the magnetic area and generates water level information.)

1. A water tank level sensing apparatus of a water cooling system, comprising:

the water tank body is provided with a water containing cavity, a water inlet and a water outlet, and the water containing cavity is used for storing and supplying working liquid introduced by the water inlet;

the floating unit is arranged in the water containing cavity and is provided with a floating drum which floats along with the height of the water level in the water containing cavity, a rotating part and a connecting part for connecting the floating drum and the rotating part, the rotating part is pivoted in the water containing cavity, and the outer side of the rotating part is provided with a magnetic area;

the water level sensing unit comprises a magnetic inductor which is arranged on the outer side of the water tank body corresponding to the magnetic area of the rotating part and is used for sensing a rotating angle of the magnetic area floating up and down along with the floating cylinder and generating a sensing signal; and

and the control unit is electrically connected with the magnetic inductor and processes the sensing signal according to the sensing signal and generates water level information.

2. The water tank level sensing apparatus of a water cooling system as claimed in claim 1, wherein: the outer side of the rotating part is provided with a non-magnetic area, the magnetic area is positioned on the outer side surface of the rotating part corresponding to the magnetic inductor, and the outer side surface of the rotating part not corresponding to the magnetic inductor is the non-magnetic area.

3. The water tank level sensing apparatus of a water cooling system as claimed in claim 1, wherein: the rotating part or the magnetic area is a magnet.

4. The water tank level sensing apparatus of a water cooling system as claimed in claim 1, wherein: a combining rod is arranged in the water containing chamber, one end of the combining rod is pivoted with the rotating part, and the other end of the combining rod is fixedly arranged on an inner wall of the water tank body.

5. The water tank level sensing apparatus of a water cooling system as claimed in claim 1, wherein: the magnetic sensor is an angle sensor.

6. The water tank level sensing apparatus of a water cooling system as claimed in claim 1, wherein: the water inlet and the water outlet are connected and communicated with a water cooling system through a plurality of water guide pipes.

7. The water tank level sensing apparatus of a water cooling system as claimed in claim 1, wherein: the float bowl, the rotating part and the connecting part are integrally formed or non-integrally formed.

Technical Field

The present invention relates to a water level sensing device for a water tank of a water cooling system, and more particularly, to a water level sensing device for a water tank of a water cooling system, which can sense the height of the water level in the water tank.

Background

Generally, industrial computers, server computers and high heat dissipation components are mostly operated in 24 hours, the server of the computer generates high heat during the operation process, although a heat dissipation fan is installed in the computer, the heat source of computer equipment is continuously generated, the air convection effect of the installed heat dissipation fan is poor, and the heat dissipation effect is limited, so that in order to effectively cool down, a water cooling system is developed by manufacturers, which is installed on the heating component of electronic equipment, and can utilize the continuous circulation of water cooling liquid to adjust the working temperature of the computer server.

The existing water cooling system is composed of a water cooling head, a pump, a water tank filled with working fluid (such as pure water), a water cooling row and a plurality of water pipes, the water cooling head, the pump, the water tank and the water cooling row are connected in series and communicated together through the plurality of water pipes, the water cooling head is contacted with a heating element (such as a CPU (central processing unit), a GPU (graphic processing unit) or other chips or elements) to absorb heat on the heating element, the working fluid in the water cooling row is driven by the pump to flow through the water cooling head, the water cooling row and the water tank in sequence, and finally the working fluid circulates back to the pump to continuously dissipate heat in a water circulation manner, but another problem is extended, namely the working fluid in the water tank is lost after being used for a period of time, for example, the original liquid level height (or called water level height) of the working fluid in the water tank is 5 centimeters (such as the capacity of the working, after a period of use, the liquid level of the working fluid in the water tank gradually and slowly loses and decreases to 4 cm (such as 160 ml of working fluid capacity), 3 cm (such as 120 ml of working fluid capacity) to 0 cm (such as 0 ml of working fluid capacity), so that no working fluid or insufficient working fluid in the water cooling system can provide a heating element for water cooling and heat dissipation, and further heat of the heating element cannot be rapidly dissipated and damaged, and the heating element can also affect the operation efficiency and insufficient heat dissipation along with gradual loss and decrease of the working fluid in the water tank.

At present, whether the working liquid in the water tank is reduced or not is checked in a manual mode, for example, after a user uses the water cooling system for a period of time, the water tank needs to be disassembled to check whether the working liquid in the water tank is reduced or not, and the working liquid in the water tank is supplemented to a standard liquid level scale position (for example, the liquid level height of the working liquid is 5 centimeters) in the water tank at any time in a manual mode, so that the problem that the water cooling system cannot normally operate to cause inconvenience and trouble in use can be avoided.

Disclosure of Invention

An object of the present invention is to provide a water level sensing apparatus for a water cooling system, which can achieve the effect of sensing the height of the water level in the water tank.

Another object of the present invention is to provide a tank water level sensing apparatus of a water cooling system with reduced cost.

Another object of the present invention is to provide a water level sensing device for a water tank of a water cooling system, in which a magnetic sensor of a water level sensing unit is disposed outside the water tank, and the rotation angle of a magnetic region disposed outside a rotating part corresponding to the water tank is sensed in a non-contact manner, so as to achieve the effect of high accuracy of water level sensing.

In order to achieve the purpose, the invention adopts the technical scheme that:

a water tank level sensing apparatus of a water cooling system, comprising:

the water tank body is provided with a water containing cavity, a water inlet and a water outlet, and the water containing cavity is used for storing and supplying working liquid introduced by the water inlet;

the floating unit is arranged in the water containing cavity and is provided with a floating drum which floats along with the height of the water level in the water containing cavity, a rotating part and a connecting part for connecting the floating drum and the rotating part, the rotating part is pivoted in the water containing cavity, and the outer side of the rotating part is provided with a magnetic area;

the water level sensing unit comprises a magnetic inductor which is arranged on the outer side of the water tank body corresponding to the magnetic area of the rotating part and is used for sensing a rotating angle of the magnetic area floating up and down along with the floating cylinder and generating a sensing signal; and

and the control unit is electrically connected with the magnetic inductor and processes the sensing signal according to the sensing signal and generates water level information.

The water tank water level sensing device of the water cooling system, wherein: the outer side of the rotating part is provided with a non-magnetic area, the magnetic area is positioned on the outer side surface of the rotating part corresponding to the magnetic inductor, and the outer side surface of the rotating part not corresponding to the magnetic inductor is the non-magnetic area.

The water tank water level sensing device of the water cooling system, wherein: the rotating part or the magnetic area is a magnet.

The water tank water level sensing device of the water cooling system, wherein: a combining rod is arranged in the water containing chamber, one end of the combining rod is pivoted with the rotating part, and the other end of the combining rod is fixedly arranged on an inner wall of the water tank body.

The water tank water level sensing device of the water cooling system, wherein: the magnetic sensor is an angle sensor.

The water tank water level sensing device of the water cooling system, wherein: the water inlet and the water outlet are connected and communicated with a water cooling system through a plurality of water guide pipes.

The water tank water level sensing device of the water cooling system, wherein: the float bowl, the rotating part and the connecting part are integrally formed or non-integrally formed.

The water level sensing device of the water tank can achieve the effect of sensing the height of the water level in the water tank and reducing the cost, and can achieve high accuracy of sensing the water level, and the water tank does not need to be drilled with pull wires so as to effectively avoid the problem of water leakage.

Drawings

Fig. 1 is a schematic diagram illustrating a water level state of a water receiving chamber of a water level sensing apparatus of a water tank according to an embodiment of the present invention.

Fig. 2 is another schematic diagram of the water level state of the water containing chamber of the water level sensing device of the water tank according to the embodiment of the invention.

Fig. 3 is another schematic diagram of the water level state of the water containing chamber of the water level sensing device of the water tank according to the embodiment of the invention.

Fig. 4 is a schematic diagram of a water cooling system according to an embodiment of the invention.

Description of reference numerals: a water tank level sensing device 1; a water tank body 10; a water-containing chamber 101; a water inlet 102; a water outlet 103; a floating unit 11; a float 111; a connecting portion 112; a rotating portion 113; magnetic region 1131; a non-magnetic region 1132; a coupling rod 114; a water level sensing unit 12; a magnetic inductor 123; a magnetic induction element 1231; a control unit 13; a water cooling system 2; a water cooling head 21; a pump 22; a water introduction pipe 23; a working liquid 3; an electronic device 4; a main board 41.

Detailed Description

The above objects, together with the structural and functional features thereof, are accomplished by the preferred embodiments according to the accompanying drawings.

The present invention provides a water level sensing device for a water tank of a water cooling system, please refer to fig. 1, which is a schematic diagram of a water level state of a water containing chamber of the water level sensing device for the water tank according to an embodiment of the present invention; FIG. 2 is a schematic view illustrating another water level state of the water chamber of the water level sensing apparatus of the water tank according to the embodiment of the present invention; FIG. 3 is a schematic view illustrating another water level state of the water chamber of the water level sensing apparatus of the water tank according to the embodiment of the present invention; fig. 4 is a schematic diagram of a water cooling system according to an embodiment of the invention. As shown in fig. 1 and 2, the water level sensing device 1 of the present invention is applied to a water cooling system 2, and the water cooling system 2 is used for performing water cooling heat dissipation on a heating element (such as a CPU (central processing unit), a GPU (graphic processing unit) or other chips or elements or heating sources) of an electronic device 4 (such as an industrial computer, a server computer, a communication chassis or other devices). The water tank level sensing device 1 comprises a water tank body 10, a floating unit 11, a water level sensing unit 12 and a control unit 13, wherein the water tank body 10 is provided with a water containing chamber 101, a water inlet 102 and a water outlet 103, the water outlet 103 is used for guiding the working liquid 3 in the water containing chamber 101 to flow out, and the water containing chamber 101 is used for storing and supplying the working liquid 3 (such as pure water) guided and introduced by the water inlet 102; the floating unit 11 is disposed in the water containing cavity 101, the floating unit 11 is provided with a float 111 floating with the water level in the water containing cavity 101, a rotating portion 113 and a connecting portion 112, two ends of the connecting portion 112 (such as a connecting rod) are respectively connected to one end of the float 111 and the outer periphery of the rotating portion 113, so that the float 111 floats upwards or downwards along with the change of the water level (or called liquid level) of the working liquid 3 in the water containing cavity 101, and the rotating portion 113 is driven by the connecting portion 112 to rotate in a counterclockwise direction or in a clockwise direction. In one embodiment, the float 111, the rotating portion 113 and the connecting portion 112 are integrally formed, such as by plastic injection molding or 3D printing, or are non-integrally formed by connecting means such as screwing, embedding or gluing.

The outer side of the rotating portion 113 is provided with a magnetic region 1131, and the magnetic region 1131 is shown to be located on the whole rotating portion 113 in this embodiment, that is, the rotating portion 113 is a magnet, but is not limited thereto. The rotating portion 113 is pivoted in the water containing chamber 101, in this embodiment, the rotating portion 113 is pivoted with a connecting rod 114 disposed in the water containing chamber, that is, one end of the connecting rod 1134 is pivoted with the rotating portion 113 and serves as a pivot point for rotation, and the other end of the connecting rod 1134 is fixedly disposed on an inner wall of the water tank body 10. In another embodiment, referring to fig. 3, the rotating portion 113 is made of plastic or metal, a magnetic area 1131 and a non-magnetic area 1132 are disposed outside the rotating portion 113, the magnetic area 1131 is a magnet or a magnetic part disposed on the outer surface of the rotating portion 113 corresponding to the magnetic sensor 123, the remaining outer surface of the rotating portion 113 not corresponding to the magnetic sensor 123 is the non-magnetic area 1132, and the non-magnetic area 1132 is an area (position) not corresponding to the outer surface of the rotating portion 113 of the magnetic sensor 123 and not being magnetic and not being induced by the magnetic sensor 123.

The magnetic sensor 123 is disposed on an outer side of the tank body 10 corresponding to the magnetic region 1131, and the magnetic sensor 123 is separated from the working liquid 3 and the rotating part 113 by the tank body 10, the magnetic sensor 123 in this embodiment is an angle sensor (e.g. a non-contact angle sensor is a hall angle sensor) composed of one or more magnetic sensing elements 1231, and is disposed on the outer side of the tank body 10, and the magnetic sensor 123 and the magnetic region 1131 of the rotating portion 113 corresponding to the inner wall of the water containing space are non-contact sensing, the magnetic sensor 123 is used to sense a rotation angle of the magnetic region 1131 floating up and down with the float bowl of the floating unit 11, and generates a sensing signal, that is, the magnetic sensor 123 senses the change of the magnetic field direction caused by the rotation of the magnetic region 1131 and converts the change to generate a sensing signal corresponding to the rotation angle of the magnetic region 1131.

And the magnetic sensor 123 in this practical implementation is electrically connected (e.g. wired or wireless) to the control unit 13, the control unit 13 can be a Central Processing Unit (CPU), a Micro Controller (MCU) or a Digital Signal Processor (DSP), and the control unit 13 is illustrated as a CPU on a motherboard 41 of the electronic device 4 in this embodiment, but not limited thereto, the control unit 13 is located outside the water tank body 10 and is not in contact with the working liquid 3, the control unit 13 knows the rotation angle of the magnetic area 1131 according to the sensing signal, processes the swing angle of the connection part 112 relatively to the rotation angle, further calculates the water level (or liquid level) inside the water tank body 10, and generates a water level information to be transmitted to a reminding component (e.g. LED lamp, speaker or display; not shown) to display (or dial) the water level information, the user can immediately know the water level information in the water tank, and can immediately (or timely) supplement new working liquid 3 to be filled into the water containing cavity 101 of the water tank body 10, so as to ensure that the working liquid 3 in the water tank body 10 can be maintained at a fixed water level. The water level information is information of the water level height (or the volume of the current working liquid 3) of the working liquid 3 in the water containing cavity 101 of the tank body 10 and the position of the float 111, for example, the highest water level height in the water containing cavity 101 is 5 cm (as shown in fig. 1), the volume of the relative working liquid 3 is 200 ml, at this time, the magnetic sensor 123 senses that the water level height (or the liquid level height) of the current working liquid 3 in the water containing cavity 101 is 2.5 cm (as shown in fig. 2), the volume of the relative working liquid 3 is 100 ml, and so on.

In an alternative embodiment, the control unit 13 may also be an independent control chip disposed on the same circuit board as the magnetic sensor 123, and transmits the water level information to the reminding element in a wired or wireless manner to display (or dial or warn) the water level information.

In addition, referring to fig. 1, 2 and 4, the water inlet 102 and the water outlet 103 of the water tank body 10 are connected and communicated with the water cooling system 2 through a plurality of water conduits 23, the water cooling system 2 in this embodiment includes at least one water cooling head 21, at least one pump 22 and the water tank body 10, the bottom side of the water cooling head 21 is attached and contacted to the heating element for absorbing heat on the heating element, the water outlet 103 guides the flowing working liquid 3 to flow into the pump 22 through a first water conduit 23, the pump 22 is connected and communicated with an inlet of the water cooling head 21 through a second water conduit 23, the pump 22 is used for driving the working liquid 3 in the pump 22 to flow into the water cooling head 21 through the second water conduit 23, the water inlet 102 of the water tank body 10 is connected and communicated with an outlet of the water cooling head 21 through a third water conduit 23, the working fluid 3 after heat exchange is guided to flow out from the outlet of the water cooling head 21 and flows through the water inlet 102 to the inside of the tank body 10 through the third water conduit 23, so as to achieve the effect of water cooling and heat dissipation by continuously circulating water.

When the water cooling system 2 performs water cooling heat dissipation on the heating element for a period of time, the original volume of the working fluid 3 in the water containing cavity 101 of the water tank body 10 is, for example, 200 ml (i.e. the height of the water surface is 5 cm; as shown in fig. 1) gradually lost and reduced, so that the volume of the working fluid 3 is reduced to, for example, 100 ml (as shown in fig. 2), meanwhile, the float 111 will float downward as the working liquid 3 gradually descends, and at this time, the magnetic sensor 123 senses that the magnetic region 1131 is driven by the connecting portion 112 to rotate clockwise and the rotation angle is as 45 degrees, and generates a sensing signal corresponding to the rotation angle of the magnetic region 1131 and transmits the sensing signal to the control unit 13, so that the control unit 13 can know the rotation angle of the magnetic region 1131 and the swing angle (e.g. 45 degrees) of the connecting portion 112 according to the sensing signal and process the rotation angle and the swing angle to generate the water level information, so as to display (or play) the water level information through the reminding element.

Therefore, by the design of the water level sensing device 1 of the present invention, the effect of sensing the height of the water level (water level) in the water tank body 10 in real time can be achieved, the accuracy of sensing the water level is high, and the cost is reduced. In addition, the user can know the current water level information in real time, which is beneficial to timely supplement new working liquid 3 to be filled into the water tank body 10, so as to effectively achieve the purpose of good use convenience and maintain the water cooling system 2 in the optimal state for water cooling heat dissipation.

In addition, the magnetic sensor 123 is fixed outside the tank body 10 to sense the angle of the magnetic area 1131 of the rotating part 113 in the water containing chamber 101 in a non-contact manner, so the present invention has no problem of wire passing from the inner hole (or drilling hole) of the tank body 10 to the outside of the tank body 10, and the remaining wall surfaces of the tank body 10 except the water inlet 102 and the water outlet 103 have no through holes, so that the tank body 10 has better sealing performance and high reliability, and effectively achieves no problem of water leakage. And only the mechanism components (such as the floating unit 11) are arranged in the water tank body 10, but no electronic components (such as the magnetic inductor 123) are arranged in the water tank body 10, so that the problem of corrosion of the electronic components is avoided.