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an hvac system

A system controller and gear technology, applied in the field of HVAC systems, can solve the problems of single function, incompatibility, and inapplicability of ECM motors and motors, and achieve the effect of reducing product models, facilitating management, and reducing R&D costs.

Active Publication Date: 2018-04-06
ZHONGSHAN BROAD OCEAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The ECM motor motor has a single function and cannot be applied to different workplaces, such as an ECM motor driven by a thermostat THERMOSTAT, such as figure 1 As shown, since the output ports (W1, W2, Y1, Y2, G) of the thermostat THERMOSTAT output 24VAC signals, the 5 gear lines T1, T2, T3, T4, T5 of the ECM motor input 24VAC signals, However, the original HVAC system using PSC fan motors outputs 115VAC or 230VAC, which are not compatible. Therefore, it is necessary to propose a solution to broaden the scope of use of ECM motors in existing HVAC systems, avoid repeated development, and reduce R & D costs and shorten the R & D cycle, the purpose of convenient management

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Such as figure 2 As shown, a kind of HVAC system, described HVAC system originally used PSC fan motor, including HVAC system controller, now replaces PSC fan motor with ECM motor, wherein: HVAC system controller has several output ports connected with the motor W1, W2, Y1, Y2 and two AC input ports L / L1, N\L2, one of the AC input ports L / L1 is respectively connected to the output port W1 through several relays R1, R2, R3, R4 inside the HVAC system , W2, Y1, and Y2 are connected to control a number of relays R1, R2, R3, and R4 so that one of the output ports W1, W2, Y1, and Y2 has an AC signal of 115V or 230V; the ECM motor is set to several There are only one gear input line, only one of the gear input lines is selected to be in the on state, and the rest are selected to be in the off state without power, and the ECM selects the motor according to the gear input line that is selected to be in the on state. operating parameters, and control the motor to run according t...

Embodiment 2

[0049] Such as Figure 9 , Figure 10 As shown, the intermediate connecting device used for HVAC system includes connecting socket 1, connecting lead 2, connecting terminal 3 and several relays 4, wherein connecting lead 2 includes power lead 21L, 21N, first connecting lead 21 of relay, relay second Two connection lead wires 22, 24V AC power lead wire 23 and grounding wire 24, several socket holes 11 are arranged on the connection socket 1, and connection terminals 3 are installed inside the connection socket 11, and some connection terminals 3 are respectively connected with power lead wires 21L, 21N Connection, part of the connection terminal 3 is connected to one end of the first connection lead 21 of the relay 4, the other end of the first connection lead 21 of the relay is connected to one terminal of the switch of the relay 4, and the other terminal of the switch of the relay is connected to the second connection of the relay One end of the lead wire 22 is connected to ...

Embodiment 3

[0052] Such as Figure 11 , Figure 12 As shown, the intermediate connection device used for the HVAC system includes a connection socket 1, a connection lead 2, a connection terminal 3 and a control circuit board 100. The control circuit board 100 is provided with several optocoupler isolation units U1, U2, U3 and U4, wherein The connection leads 2 include power supply leads 21L, 21N, optocoupler first connection leads 210, optocoupler second connection leads 220, 24V AC power supply leads 23 and grounding wires 24. The connection socket 1 is provided with several insertion holes 11. Connecting terminals 2 are installed inside the connecting hole 11, some of the connecting terminals 2 are respectively connected to the power leads 21L and 21N, some of the connecting terminals 2 are connected to one end of the first connecting lead 210 of the optocoupler, and the other end of the first connecting lead 210 of the optocoupler is connected to One output end of the optocoupler iso...

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Abstract

The invention discloses an HVAC system. The HVAC system originally used a PSC fan motor, including an HVAC system controller, and now replaces the PSC fan motor with an ECM motor, wherein: the HVAC system controller has several 115V motors connected to the motor. Or a 230V AC output port and a common port, the ECM motor is provided with several 24V low-voltage AC gear input lines, and the ECM selects the operating parameters of the motor according to the selected gear input lines in the conduction state; it also It includes an intermediate connection device, which is connected between the HVAC system controller and the ECM motor, and the intermediate connection device converts the 115V or 230V AC signals of several output ports of the HVAC system controller into several The 24V low-voltage AC signal identified by the gear position input line avoids redevelopment, reduces R&D costs and shortens the R&D cycle, reduces product models, and facilitates management.

Description

Technical field: [0001] The present invention relates to an HVAC system. Background technique: [0002] In recent years, with the increasingly fierce competition in the field of electrical appliances, the technical requirements for products have been continuously improved, such as energy saving and environmental protection, high controllability, intelligent controllability, short development cycle, and low noise. As the core component—the motor, it will undoubtedly become the key component to solve the above technical problems. The motors in traditional household central air conditioners generally use single-phase AC motors PSC, single-phase AC motors, low efficiency, relatively energy consumption, and large noise. Controlling intelligence is low. [0003] With the development of motor technology, permanent magnet synchronous motors have appeared. This kind of motor has a motor controller, which uses the motor controller to achieve the purpose of electronic commutation of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P6/00
CPCH02P6/08
Inventor 胡戈
Owner ZHONGSHAN BROAD OCEAN
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