Metal hollow constant-temperature billiard table top plate

Abstract

The invention provides a metal hollow constant-temperature billiard table panel, and relates to the technical field of billiard tables, the metal hollow constant-temperature billiard table panel comprises a panel body and panel cloth, the panel cloth covers the upper surface of the panel body, and the panel body is composed of a plurality of groups of metal plates; the metal plate has a heating function, a temperature sensor is arranged on the metal plate, the metal plate is electrically connected with the power supply controller, and the power supply controller is matched with the temperature sensor to control the metal plate to be heated at a constant temperature; the metal plate is composed of a plurality of groups of metal plates, the metal plates have a heating function, the power supply controller is matched with the temperature sensor to control heating and constant temperature of the metal plates, condensate water is prevented from being generated, normal use is prevented from being affected, the multiple closed holes are formed in the metal plates so that the interior of each metal plate can be of a hollow structure, light weight is facilitated, and the weight of the plate body is reduced; the carrying is convenient, and the material cost is also saved.

Description

Technical Field

[0001] The invention relates to the technical field of billiard tables, in particular to a hollow metal billiard table top with a constant temperature. Background Art

[0002] A pool table is a table designed for playing billiards, mainly for competition and entertainment. It is usually made of high-quality wood (such as maple or oak), with excellent elasticity and wear resistance. A complex support structure is set under the table to ensure its stability. The size and shape of the pool table vary depending on the type of billiards, such as snooker table, American pool table, Chinese pool table, etc. They each have their own standard size and unique rules of play. Snooker table is famous for its long and wide table, which provides players with a wide space to play; American pool table is loved by the majority of enthusiasts for its simplicity, practicality and diverse playing methods; Chinese pool table combines the characteristics of Chinese and Western billiards, suitable for both professional competitions and leisure entertainment. In addition, the surface of the pool table is covered with a special fabric, which has excellent friction and durability, and can ensure that the rolling trajectory of the ball on the table is stable and controllable, providing an ideal competition and entertainment venue for billiards. The current mainstream billiard table adopts a jade plate splicing structure (such as inkstone slabs, marble and other natural stones) as the core support surface. The jade plate has high thermal conductivity due to its natural mineral composition. It is easy to quickly conduct heat when the ambient temperature changes, resulting in the table temperature being significantly lower than the ambient temperature. This characteristic is easy to cause condensation water to form on the contact surface between the table and the air under high humidity scenes, causing the table fabric to be deformed due to moisture and the rolling trajectory of the ball to deviate. Therefore, the present invention proposes a hollow metal billiard table panel with a constant temperature to solve the problems existing in the prior art. Summary of the invention

[0003] In view of the above problems, the present invention proposes a hollow metal constant temperature billiard table top panel, which is composed of a plurality of metal plates. The metal plates have a heating function. The power supply controller cooperates with the temperature sensor to control the heating and constant temperature of the metal plates to avoid the generation of condensed water and prevent it from affecting normal use.

[0004] To achieve the purpose of the present invention, the present invention is implemented by the following technical scheme: a metal hollow temperature-controlled billiard table top panel, comprising a plate body and a panel cloth, wherein the panel cloth covers the upper surface of the plate body, and the plate body is composed of a plurality of groups of metal plates; The metal plate has a heating function, and a temperature sensor is arranged on the metal plate. The metal plate is electrically connected to a power supply controller, and the power supply controller cooperates with the temperature sensor to control the heating of the metal plate to maintain a constant temperature.

[0005] A further improvement is that the metal plate is an integrated die-cast plate body, and the surface of the metal plate is a smooth surface.

[0006] A further improvement is that when the metal plate is used as a resistor, the power supply controller includes a low-voltage adjustable DC power supply, a first PID temperature controller, a first solid-state relay, a leakage protection circuit breaker and an overcurrent protection fuse.

[0007] Further improvements are: the positive pole of the low-voltage adjustable DC power supply is connected to the overcurrent protection fuse, and the overcurrent protection fuse is connected to the positive pole of the metal plate, the negative pole of the low-voltage adjustable DC power supply is connected to the leakage protection circuit breaker, and the leakage protection circuit breaker is connected to the negative pole of the metal plate, the signal output end of the temperature sensor is connected to the first PID temperature controller, and the output end of the first PID temperature controller is connected to the first solid-state relay to output a control signal, and the control end of the first solid-state relay is connected to the enable end of the low-voltage adjustable DC power supply to perform power regulation.

[0008] Further improvements are: the low-voltage adjustable DC power supply is connected to the mains, the output safety voltage is ≤36V, and the current is regulated by linear voltage reduction technology; the first PID temperature controller integrates a temperature feedback algorithm, collects metal plate temperature data and compares it with the set value, and dynamically adjusts the output power; the first solid-state relay is based on optocoupler isolation technology to separate and control strong and weak electricity.

[0009] A further improvement is that the leakage protection circuit breaker is connected in series with the input end of the low-voltage adjustable DC power supply, and automatically cuts off the circuit when the leakage current is detected to be ≥30mA. The overcurrent protection fuse matches the fusing current according to the resistance value of the metal plate for overcurrent disconnection.

[0010] A further improvement is that when the surface of the metal plate is inlaid with a heating wire, the power supply controller includes a second PID temperature controller, a second solid-state relay, an isolation transformer and an overcurrent protector.

[0011] Further improvements are: the output end of the isolation transformer is connected to the second solid-state relay, and the control end of the second solid-state relay is connected to the heating wire, the heating wire is connected to the overcurrent protector, and the overcurrent protector is connected to the ground terminal, the signal output end of the temperature sensor is connected to the second PID temperature controller, and the output end of the second PID temperature controller is connected to the second solid-state relay to output a control signal.

[0012] Further improvements are as follows: the surface of the heating wire is covered with heat-resistant insulating sealant, and the heating wire is embedded in the surface of the metal plate in a serpentine or wavy arrangement; the second PID temperature controller dynamically adjusts the heating power through a PID algorithm; the second solid-state relay controls the on and off of the heating wire according to the output signal of the second PID temperature controller; the isolation transformer is connected to the mains and uses a 220V to 24V safe voltage isolation power supply; the overcurrent protector is equipped with a self-recovering fuse for overcurrent disconnection. A further improvement is that a plurality of closed holes (15) are provided in the metal plate so that the interior of the metal plate (2) presents a hollow structure.

[0013] The beneficial effects of the present invention are: 1. The present invention is composed of several groups of metal plates, which have a heating function. The power supply controller cooperates with the temperature sensor to control the heating and constant temperature of the metal plates to avoid the generation of condensed water and prevent it from affecting normal use.

[0014] 2. The metal plate of the present invention is provided with a plurality of closed holes so that the interior of the metal plate presents a hollow structure, which is conducive to lightweighting, reducing the weight of the plate body, facilitating transportation, and saving material costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of three metal plates of the present invention; Figure 2 It is a schematic diagram of five metal plates of the present invention; Figure 3 It is a schematic diagram of the panel cloth of the present invention; Figure 4 This is a schematic diagram of a metal plate in accordance with an embodiment of the present invention; Figure 5 This is a schematic diagram of a power supply controller according to a first embodiment of the present invention; Figure 6 This is a schematic diagram of a metal plate according to a second embodiment of the present invention; Figure 7 This is a schematic diagram of a power supply controller according to a second embodiment of the present invention; Figure 8 It is a schematic diagram of the honeycomb hole of the present invention.

[0016] Among them: 1. Panel cloth; 2. Metal plate; 3. Power supply controller; 4. Temperature sensor; 5. Low voltage adjustable DC power supply; 6. First PID temperature controller; 7. First solid-state relay; 8. Leakage protection circuit breaker; 9. Overcurrent protection fuse; 10. Heating wire; 11. Second PID temperature controller; 12. Second solid-state relay; 13. Isolation transformer; 14. Overcurrent protector; 15. Closed hole. DETAILED DESCRIPTION

[0017] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with examples. The examples are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0018] Embodiment 1 according to Figure 1 , 2 As shown in , 3, 4, 5, and 8, this embodiment proposes a metal hollow structure with a constant temperature billiard table top, including a plate body and a panel cloth 1, the panel cloth 1 covers the upper surface of the plate body, and the plate body is composed of a plurality of groups of metal plates 2; the metal plates 2 can be three groups or five groups; The metal plate 2 has a heating function, and a temperature sensor 4 is provided on the metal plate 2. The metal plate 2 is electrically connected to the power supply controller 3, and the power supply controller 3 cooperates with the temperature sensor 4 to control the heating and constant temperature of the metal plate 2. The plate body is composed of a plurality of groups of metal plates 2, and the surface is covered with an insulating panel cloth 1. The metal plate 2 has a heating function, and the power supply controller 3 cooperates with the temperature sensor 4 to control the heating and constant temperature of the metal plate 2 to avoid the generation of condensed water and prevent normal use from being affected.

[0019] The metal plate 2 is an integrated die-cast plate body, and the surface of the metal plate 2 is a smooth surface, which is more durable, light, high in strength, and has a smooth surface and good flatness.

[0020] When the metal plate 2 is used as a resistor, the power supply controller 3 includes a low-voltage adjustable DC power supply 5, a first PID temperature controller 6, a first solid-state relay 7, a leakage protection circuit breaker 8 and an overcurrent protection fuse 9. The positive pole of the low-voltage adjustable DC power supply 5 is connected to the overcurrent protection fuse 9, and the overcurrent protection fuse 9 is connected to the positive pole of the metal plate 2. The negative pole of the low-voltage adjustable DC power supply 5 is connected to the leakage protection circuit breaker 8, and the leakage protection circuit breaker 8 is connected to the negative pole of the metal plate 2. The signal output end of the temperature sensor 4 is connected to the first PID temperature controller 6, and the output end of the first PID temperature controller 6 is connected to the first solid-state relay 7 to output a control signal. The control end of the first solid-state relay 7 is connected to the enable end of the low-voltage adjustable DC power supply 5 for power regulation. The low-voltage adjustable DC power supply 5 is connected to the mains, and the output safety voltage is ≤36V. The current is regulated by the linear step-down technology. The first PID temperature controller 6 integrates a temperature feedback algorithm, collects the temperature data of the metal plate 2 and compares it with the set value, and dynamically adjusts the output power. The first solid-state relay 7 is based on the optical coupling isolation technology to separate and control the strong and weak electricity. The leakage protection circuit breaker 8 is connected in series to the input end of the low-voltage adjustable DC power supply 5, and automatically cuts off the circuit when the leakage current is detected to be ≥30mA. The overcurrent protection fuse 9 matches the fusing current according to the resistance value of the metal plate 2 for overcurrent disconnection.

[0021] Low voltage adjustable DC power supply 5: outputs safe voltage (≤36V), and achieves precise current control through PWM or linear step-down technology to ensure that there is no risk of electric shock to human body 13. As the main power supply unit of the system, the output end is connected to the two poles of the metal plate 2. The first PID temperature controller 6: integrates temperature feedback algorithm, collects metal plate temperature data in real time and compares it with the set value, dynamically adjusts the output power, receives the temperature sensor 4 signal at the input end, and controls the first solid-state relay 7 on and off at the output end. Temperature sensor 4: select K-type thermocouple or PT100 platinum resistance, directly adhere to the surface of the metal plate for multi-point temperature monitoring. The first solid-state relay 7 is based on optocoupler isolation technology to achieve separation control of strong and weak electricity, with fast response speed and no risk of mechanical contact sparks; the leakage protection circuit breaker 8 is connected in series at the power input end, and automatically cuts off the circuit when the leakage current is detected to be ≥30mA; the overcurrent protection fuse matches the fusing current according to the resistance value of the metal plate (R=ρL / S needs to be calculated) to prevent overheating caused by short circuit. In summary, the metal plate 2 is energized and the metal plate 2 itself is used as a resistor to heat the metal plate 2 to a constant temperature. The current is very small, ensuring that there is no safety hazard to human contact. The metal plate 2 is provided with a plurality of closed holes 15 so that the interior of the metal plate 2 is a hollow structure. The cross-section of the plurality of closed holes 15 can be circular or triangular or a combination of circular and triangular, or can be other shapes. Preferably, the plurality of closed holes 15 are a plurality of strip-shaped holes arranged at intervals to facilitate processing and forming. The hollow structure of the metal plate 2 is conducive to the lightweight of the metal plate, reduces the weight of the plate body, facilitates handling, and saves material costs.

[0022] Embodiment 2 according to Figure 1 , 2 As shown in , 3, 6, 7, and 8, this embodiment proposes a metal hollow temperature-controlled billiard table top, including a plate body and a panel cloth 1, wherein the panel cloth 1 covers the upper surface of the plate body, and the plate body is composed of a plurality of groups of metal plates 2; the metal plates 2 may be three groups or five groups; The metal plate 2 has a heating function, and a temperature sensor 4 is provided on the metal plate 2. The metal plate 2 is electrically connected to the power supply controller 3, and the power supply controller 3 cooperates with the temperature sensor 4 to control the heating and constant temperature of the metal plate 2. The plate body is composed of a plurality of groups of metal plates 2, and the surface is covered with an insulating panel cloth 1. The metal plate 2 has a heating function, and the power supply controller 3 cooperates with the temperature sensor 4 to control the heating and constant temperature of the metal plate 2 to avoid the generation of condensed water and prevent normal use from being affected.

[0023] The metal plate 2 is an integrated die-cast plate body, and the surface of the metal plate 2 is a smooth surface, which is more durable, light, high in strength, and has a smooth surface and good flatness.

[0024] When the surface of the metal plate 2 is inlaid with a heating wire 10, the power supply controller 3 includes a second PID temperature controller 11, a second solid-state relay 12, an isolation transformer 13 and an overcurrent protector 14. The output end of the isolation transformer 13 is connected to the second solid-state relay 12, and the control end of the second solid-state relay 12 is connected to the heating wire 10, the heating wire 10 is connected to the overcurrent protector 14, and the overcurrent protector 14 is connected to the ground terminal, the signal output end of the temperature sensor 4 is connected to the second PID temperature controller 11, and the output end of the second PID temperature controller 11 is connected to the second solid-state relay 12 to output a control signal. The surface of the heating wire 10 is covered with temperature-resistant insulating sealant to ensure insulation performance and improve safety. The heating wire 10 is embedded in the surface of the metal plate 2 in a serpentine or wavy arrangement. The second PID temperature controller 11 dynamically adjusts the heating power through a PID algorithm. The second solid-state relay 12 controls the on and off of the heating wire 10 according to the output signal of the second PID temperature controller 11. The isolation transformer 13 is connected to the mains and uses 220V to 24V safe voltage isolation power supply. The overcurrent protector 14 is equipped with a self-recovery fuse for overcurrent disconnection.

[0025] Nickel-chromium alloy heating wire: embedded in the groove on the surface of the metal plate 2 in a serpentine or wavy arrangement to ensure uniform heat diffusion; Temperature sensor 4: K-type thermocouples or PT100 platinum resistors are arranged on the surface and edge of the metal plate 2 to monitor the temperature distribution of the heating area in real time; Second PID temperature controller 11: Dynamically adjust the heating power through the PID algorithm to achieve a constant temperature accuracy of ±1°C, and support RS485 / Modbus communication protocol to access the host computer system. Second solid-state relay 12: As a power switching element, it controls the on and off of the heating wire according to the output signal of the thermostat. The response speed must be ≤10ms to reduce temperature fluctuations. Isolation transformer 13: Use 220V to 24V safe voltage isolation power supply to reduce the risk of electric shock. Overcurrent protector 14: Configure a self-recovery fuse (such as PPTC) or circuit breaker to prevent overload accidents caused by short circuit of the heating wire; In summary, the metal plate 2 is heated to a constant temperature to ensure that there are no safety hazards for human contact. The metal plate 2 has a plurality of closed holes 15 arranged at intervals, and the cross section of the closed holes 15 is circular or triangular or a combination of circular and triangular. The metal plate 2 has a plurality of closed holes 15, which is conducive to lightweighting of the metal plate, reducing the weight of the plate body, facilitating transportation, and saving material costs.

[0026] The metal hollow thermostatic pool table top is composed of a plurality of metal plates 2. The metal plates 2 have a heating function. The power supply controller 3 cooperates with the temperature sensor 4 to control the heating and constant temperature of the metal plates 2 to avoid the generation of condensed water and prevent the normal use from being affected. At the same time, the metal plates 2 are built with closed holes 15, which is conducive to the lightweight of the metal plates, reduces the weight of the plates, facilitates transportation, and saves material costs.

[0027] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A metal hollow temperature-controlled billiard table top, comprising a plate body and a panel cloth (1), characterized in that: The panel cloth (1) covers the upper surface of the plate body, and the plate body is composed of a plurality of groups of metal plates (2); The metal plate (2) has a heating function, and a temperature sensor (4) is provided on the metal plate (2). The metal plate (2) is electrically connected to a power supply controller (3), and the power supply controller (3) cooperates with the temperature sensor (4) to control the heating of the metal plate (2) to maintain a constant temperature.

2. The metal hollow temperature-controlled billiard table top according to claim 1, characterized in that: The metal plate (2) is an integrated plate body, and the surface of the metal plate (2) is a smooth surface.

3. The metal hollow temperature-controlled billiard table top according to claim 1, characterized in that: When the metal plate (2) is used as a resistor, the power supply controller (3) comprises a low-voltage adjustable DC power supply (5), a first PID temperature controller (6), a first solid-state relay (7), a leakage protection circuit breaker (8) and an overcurrent protection fuse (9).

4. The metal hollow temperature-controlled billiard table top according to claim 3, characterized in that: The positive electrode of the low-voltage adjustable DC power supply (5) is connected to an overcurrent protection fuse (9), and the overcurrent protection fuse (9) is connected to the positive electrode of the metal plate (2); the negative electrode of the low-voltage adjustable DC power supply (5) is connected to a leakage protection circuit breaker (8), and the leakage protection circuit breaker (8) is connected to the negative electrode of the metal plate (2); the signal output end of the temperature sensor (4) is connected to a first PID temperature controller (6), and the output end of the first PID temperature controller (6) is connected to a first solid-state relay (7) to output a control signal; the control end of the first solid-state relay (7) is connected to an enable end of the low-voltage adjustable DC power supply (5) to perform power regulation.

5. The metal hollow temperature-controlled billiard table top according to claim 4, characterized in that: The low voltage adjustable DC power supply (5) is connected to the mains, outputs a safe voltage of ≤36V, and regulates the current through a linear step-down technology. The first PID temperature controller (6) integrates a temperature feedback algorithm, collects temperature data of the metal plate (2) and compares it with a set value, and dynamically adjusts the output power. The first solid-state relay (7) is based on an optical coupling isolation technology to separate and control strong and weak electricity.

6. The metal hollow temperature-controlled billiard table top according to claim 5, characterized in that: The leakage protection circuit breaker (8) is connected in series to the input end of the low voltage adjustable DC power supply (5), and automatically cuts off the circuit when a leakage current ≥ 30 mA is detected. The overcurrent protection fuse (9) matches the fusing current according to the resistance value of the metal plate (2) and is used for overcurrent disconnection.

7. The metal hollow temperature-controlled billiard table top according to claim 1, characterized in that: When a heating wire (10) is embedded on the surface of the metal plate (2), the power supply controller (3) comprises a second PID temperature controller (11), a second solid-state relay (12), an isolation transformer (13) and an overcurrent protector (14).

8. The metal hollow temperature-controlled billiard table top according to claim 7, characterized in that: The output end of the isolation transformer (13) is connected to the second solid-state relay (12), and the control end of the second solid-state relay (12) is connected to the heating wire (10), the heating wire (10) is connected to the overcurrent protector (14), and the overcurrent protector (14) is connected to the ground terminal, the signal output end of the temperature sensor (4) is connected to the second PID temperature controller (11), and the output end of the second PID temperature controller (11) is connected to the second solid-state relay (12) to output a control signal.

9. The metal hollow temperature-controlled billiard table top according to claim 8, characterized in that: The surface of the heating wire (10) is covered with a heat-resistant insulating sealant, and the heating wire (10) is embedded in the surface of the metal plate (2) in a serpentine or wavy arrangement. The second PID temperature controller (11) dynamically adjusts the heating power through a PID algorithm. The second solid-state relay (12) controls the on and off of the heating wire (10) according to the output signal of the second PID temperature controller (11). The isolation transformer (13) is connected to the mains and uses a 220V to 24V safe voltage isolation power supply. The overcurrent protector (14) is configured with a self-recovery fuse for overcurrent disconnection.

10. The metal hollow temperature-controlled billiard table top according to any one of claims 1 to 9, characterized in that: A plurality of closed holes (15) are provided in the metal plate (2) so that the interior of the metal plate (2) presents a hollow structure.

Images