CN217873342U

CN217873342U - Automatic safety detector for High Volume Low Speed (HVLS) fan

Info

Publication number: CN217873342U
Application number: CN202123365239.3U
Authority: CN
Inventors: 陈建业
Original assignee: Zhuoyue Fengji Private Ltd
Current assignee: Zhuoyue Fengji Private Ltd
Priority date: 2021-12-21
Filing date: 2021-12-29
Publication date: 2022-11-22
Anticipated expiration: 2031-12-29

Abstract

The utility model relates to an automatic safety detector of high capacity low speed (HVLS) fan. Comprises a high-capacity low-speed fan unit; a safety detector attached to a surface of the high-capacity low-speed fan unit; a control unit for monitoring and responding to abnormal movement of the large-capacity low-speed fan; the safety detector further comprises: a first cable comprising an insulator and a copper conductor, wherein the first cable is connected at one end to a control unit; the metal ball is connected to the first cable at the other end, the metal ball hangs freely under the action of gravity, and a certain length of insulator of the first cable connected with the metal ball is removed, so that the copper conductor of the first cable can be exposed; a conductor plate connected to the second cable, wherein the conductor plate protrudes from the second cable, having a loop at one end thereof; the metal ball from the first cable hangs freely through and out of the ring so that the copper conductor of the first cable contacts the ring and automatically breaks the circuit when motion occurs.

Description

Automatic safety detector for High Volume Low Speed (HVLS) fan

Technical Field

The present invention generally relates to an automated safety detector for a High Volume Low Speed (HVLS) fan. More specifically, the safety detector is able to automatically respond to any abnormal condition of the HVLS fan.

Background

The subject matter discussed in the background should not be considered prior art merely as being referred to in the background. Similarly, the problems mentioned in the background or associated with the background subject matter should not be considered as having been previously recognized in the prior art. The subject matter in the background merely represents different approaches which may themselves be inventions.

Industrial fans are widely used today in large spatial areas, such as industrial, commercial and agricultural sites. These large fans range in size from 8 to 24 feet, provide energy efficient air movement in large open spaces, and save more energy costs. Regardless of the size of the workspace, air flow and circulation are critical to worker health and efficiency of application.

Due to the large size of HVLS fans, the fan must be robust in construction. Slight movements during operation (e.g. vibration, tilting or tilting) can be very dangerous. Often, these movements are due to natural disasters, human failures, or fan failures, which can lead to accidents and other unnecessary damage to specific areas.

CA2783897A1 provides a system and method for controlling a fan system in a facility from a central system controller, whereby the fan system may be configured to automatically shut down during an emergency or event. However, the mechanical arrangement of the device is very complex, especially in the arrangement of the components, and the pendulum is force-controlled and cannot move freely to cut off the electrical power.

US5418523 provides a seismic motion detector alarm that is securely attached to a vertical wall of a home or public building. When an earthquake occurs, the pendulum will make contact with one of three sensors on an outer ring surrounding the pendulum and activate an audio alarm and an emergency searchlight. The metal ring is mounted on the metal base plate by a magnet and can be moved to any position along the metal base plate. Even though the pendulum appears to hang freely within the outer sensor ring, it is still indirectly controlled by the magnetic force from the magnet.

Therefore, there is a need in the art to provide a simple and reliable detector for interrupting power supply when vibration occurs, not limited to natural disasters, but also in consideration of human error or malfunction of a high-capacity low-speed fan, which is simple in construction and active in operation, without requiring springs, electromagnets, gears and the like.

SUMMERY OF THE UTILITY MODEL

According to one embodiment illustrated herein, there is provided an automatic safety detector of the present invention, comprising a unit of a high-capacity low-speed fan 20; a safety detector 10 attached to a surface of the high-capacity low-speed fan 20 unit; a control unit 30 for monitoring and responding to abnormal movement of the high-capacity low-speed fan 20; the safety detector 10 further comprises: a first cable 12 including an insulator 13 and a copper conductor 14, wherein the first cable 12 is connected to a control unit 30 at one end; the metal ball 15 is connected at the other end to the first cable 12, wherein the metal ball 15 hangs freely under gravity, exposing a certain length of the insulator 13 of the first wire 12 connecting the metal ball 15, enabling the copper conductor 14 of the first cable 12 to be exposed; a conductor plate 40 connected to a second cable 41, wherein the conductor plate 40 protrudes from the second cable 41, having a ring shape 42 at one end of the conductor plate 40; the metal balls 15 from the first cable 12 hang freely through and out of the ring 42 so that the copper conductors 14 of the first cable 12 contact the ring 42 and automatically break the circuit when movement occurs.

Advantageously, the present invention provides a simple and reliable detector for interrupting power in the event of vibration, the cause of which is not limited to natural disasters, but also takes into account human error or failure of high volume, low speed fans.

Advantageously, the present invention provides a detector that is simple in construction and reliable in operation, without the need for springs, electromagnets, gears and the like.

It is a further object of the invention to provide a simple means for testing and resetting it after it has been activated.

Drawings

Various embodiments will hereinafter be described in conjunction with the appended drawings, provided to illustrate and not to limit the scope, wherein like designations denote like elements, and in which:

FIG. 1: a ceiling mounted unit of the high capacity low speed fan of the present invention is shown.

FIG. 2: a pole unit of a high-capacity low-speed fan of the present invention is shown.

FIG. 3: a side view of the detector of the present invention is shown.

FIG. 4 is a schematic view of: a control unit and a set of arrangements of each feature of the invention are shown.

FIG. 5: showing the wiring diagram of the present invention.

Detailed Description

The following description is merely exemplary of various embodiments and is not intended to limit the scope, applicability, or configuration of the disclosure in any way. Rather, the following description is intended to facilitate explanation of various embodiments for implementing the described implementations, including the best mode. As will be apparent, various changes may be made in the function and arrangement of elements described in these embodiments without departing from the scope of the appended claims. In the following figures, like reference numerals are used to identify like components in the various views and embodiments.

In a preferred embodiment of the present invention, as shown in fig. 1 and 2, the High Volume Low Speed (HVLS) fan 20 may be selected from a ceiling fan or a pole fan. The safety detector 10 of the present invention is attached to the surface of the unit, and preferably at the stem of the unit of a High Volume Low Speed (HVLS) fan 20. When abnormal movement such as a natural disaster, a human error, or a fan failure occurs during operation of the safety detector 10, the current of the circuit is automatically cut off. This feature is essential to avoid accidents and other unnecessary damage to specific areas.

Referring now to fig. 3, the safety detector 10 further comprises a first cable 12 having an insulator 13 and a copper conductor 14, wherein the first cable 12 is connected at one end to a control unit 30; the metal ball 15 is connected to the first wire 12 at the other end, wherein the metal ball 15 hangs freely under gravity, removing a certain length of the insulator 13 of the first wire 12 connecting the metal ball 15, enabling the copper conductor 14 of the first wire 12 to be exposed; a conductor plate 40 connected to a second cable 41, wherein the conductor plate 40 protrudes from the second cable 41, having a ring shape 42 at one end of the conductor plate 40; the metal balls 15 from the first cable 12 hang freely through and out of the ring 42 so that the copper conductors 14 of the first cable 12 contact the ring 42 and automatically break the circuit when movement occurs.

Preferably, the conductor plate 40 is selected from an aluminum or copper plate and the metal balls 15 are selected from Polytetrafluoroethylene (PTFE) balls. Depending on the size of the safety detector, a certain length of insulation 13 is removed from the first cable 12 to bring the copper conductor 14 inside the wire into contact with the conductor plate 40 when the detector is vibrated or tilted. This switching concept of the detector will automatically cut off the current of the circuit.

Referring to fig. 4, the control unit 30 of the High Volume Low Speed (HVLS) fan 20 further includes an indicator 31 for indicating an electrical trip during operation. The indicator 31 will inform the user or person in charge of the occurrence of the abnormal movement in order for the user or person in charge to take the necessary action. The indicator 30 may be selected from any indicator device such as a trip indicator light or any integrated device linked to a computer processor.

Referring to fig. 5, the wiring diagram shows: also in the control unit 30 is a set of monitoring means comprising a contactor 34 or control relay 32 and an accumulator counter 33. The contactor 34 is used to repeatedly break or make connections in the circuit under different conditions, the control relay 32 is used to control the contact of the control circuit due to changes in parameters or conditions in the same circuit or any other associated circuit, and the accumulator counter 33 is used for electrical break analysis, whereby the accumulator counter 33 will accept various inputs from sensors, switches, encoders and relays, incrementing the counter each time a pulse is received. Each data received from accumulator counter 33 will be analyzed and is necessary to provide proper maintenance of the HVLS fan 20.

In the case where several HVLS fans 20 units are operating in parallel, the safety detector 10 may be attached or mounted on each HVLS fan 20 so that power interruptions are only responsive to a particular unit. Furthermore, the control unit 30 may be adjusted by adding other processors, such as additional counters for any other specific analysis, adding required sensors or warning devices, and the control unit 30 may also be linked to a Building Management System (BMS) and a Human Machine Interface (HMI) system.

Claims

1. An automated safety detector for a High Volume Low Speed (HVLS) fan, comprising:

a high-capacity low-speed fan (20) unit;

a safety detector (10) attached to a surface of the high-capacity low-speed fan (20) unit;

a control unit (30) for monitoring and responding to abnormal movement of the high-capacity low-speed fan (20);

it is characterized in that the preparation method is characterized in that,

the safety detector (10) further comprises:

a first cable (12) comprising an insulator (13) and a copper conductor (14), wherein the first cable (12) is connected at one end to the control unit (30);

-a metal ball (15) is connected at the other end to the first cable (12), wherein the metal ball (15) hangs freely under gravity, removing a certain length of the insulator (13) of the first cable (12) connecting the metal ball (15) enabling the copper conductor (14) of the first cable (12) to be exposed;

a conductor plate (40) connected to a second cable (41), wherein the conductor plate (40) protrudes from the second cable (41), having a loop (42) at one end of the conductor plate (40);

the metal ball (15) from the first cable (12) hangs freely through and out of the ring (42) so that the copper conductor (14) of the first cable (12) contacts the ring (42) and automatically breaks the circuit when movement occurs.