WO2015165129A1 - 一种hvac系统及其应用的中间连接装置 - Google Patents

一种hvac系统及其应用的中间连接装置 Download PDF

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Publication number
WO2015165129A1
WO2015165129A1 PCT/CN2014/077346 CN2014077346W WO2015165129A1 WO 2015165129 A1 WO2015165129 A1 WO 2015165129A1 CN 2014077346 W CN2014077346 W CN 2014077346W WO 2015165129 A1 WO2015165129 A1 WO 2015165129A1
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WIPO (PCT)
Prior art keywords
lead
hvac system
terminal
motor
relay
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
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PCT/CN2014/077346
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English (en)
French (fr)
Inventor
胡戈
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhongshan Broad Ocean Motor Co Ltd
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Zhongshan Broad Ocean Motor Co Ltd
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Publication date
Application filed by Zhongshan Broad Ocean Motor Co Ltd filed Critical Zhongshan Broad Ocean Motor Co Ltd
Priority to US14/394,441 priority Critical patent/US9614468B2/en
Publication of WO2015165129A1 publication Critical patent/WO2015165129A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P6/00Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/08Arrangements for controlling the speed or torque of a single motor

Definitions

  • the utility model relates to an intermediate connection device for an HVAC system and an application thereof.
  • the motor in the traditional domestic central air conditioner generally uses a single-phase AC motor PSC, a single-phase AC motor, which is inefficient, relatively energy-intensive, and has a large noise. Controllability is low in intelligence.
  • ECM motors have been developed to directly replace the original PSC motors without changing the circuit structure of the original application system of the PSC motor (such as HVAC air conditioning control system).
  • the installation and commissioning is simple and the development cost is reduced.
  • the ECM motor motor has a single function and cannot be used in different working situations.
  • the ECM motor driven by the thermostat THERMOSTAT as shown in Figure 1, because the output port (Wl, Yl, Y2, G) of the thermostat THERMOSTAT is output.
  • the T3, T4, and ⁇ 5 inputs are 24 VAC signals, while the original HVAC system using the PSC fan motor outputs 115 VAC or 230 VAC.
  • the two are not compatible. Therefore, it is necessary to propose a solution to broaden the existing HVAC system.
  • the scope of use of ECM motors avoids duplication of development, reduces R&D costs and shortens the development cycle, and facilitates management.
  • the purpose of the utility model is to provide an HVAC system, which replaces the HVAC system PSC fan motor with an ECM motor, and the ECM motor uses a gear input signal of 24 VAC, and the output of the HVAC system is controlled by a simple installation connection of the intermediate connection device.
  • the signal is matched with the 24VAC gear input signal of the ECM motor to avoid re-development, reduce R&D costs and shorten the development cycle, reduce the product model, and facilitate management.
  • Another object of the present invention is to provide an intermediate connection device by which the output high voltage control signal of the HVAC system can be matched with the 24VAC gear input signal of the ECM motor, and the structure is simple, avoiding re-development of the ECM motor, reducing development cost and shortening R & D cycle, reduce product models, and facilitate management purposes.
  • the HVAC system controller has several output ports connected to the motor and two AC input ports; one of the AC input ports is respectively connected to the output port through a plurality of relays inside the HVAC system, and one of the several output ports is connected to 115V or 230V AC signal; the ECM motor is provided with several gear input lines, only one of the gear input lines is selected to be in the on state, and the other channels are selected to be in the off state without power, and the ECM is based on the Select the on-position gear input line to select the operating parameters of the motor, and control the motor to operate according to the selected operating parameters.
  • the gear input line is connected with a 24V low-voltage AC signal; it also includes an intermediate connection device.
  • the intermediate connection device is connected between the HVAC system controller and the ECM motor, and the intermediate connection device converts the 115V or 230V AC signal of several output ports of the HVAC system controller into a plurality of gear input lines that can be recognized by the ECM motor. 24V low voltage AC signal.
  • the intermediate connection device described above comprises a plurality of relays, one terminal of each induction coil of the relay is connected to one of a plurality of HVAC system output ports, and the other terminal of each induction coil of the relay is connected in parallel to the HVAC Another AC input port of the system, one terminal of each relay switch is connected to one gear input line of ECM motor, and the other terminal of each relay switch is connected in parallel to connect 24V low voltage AC signal.
  • the intermediate connection device described above comprises a control circuit board, and the control circuit board is provided with a plurality of optocoupler isolation units, and the two input ends of each optical isolation unit are respectively connected to one output port of the HVAC system and another communication of the HVAC system.
  • Input port, one output of each optical isolation unit is connected to 24V low voltage AC signal, and the other output of each optocoupler isolation unit is connected to one gear input of ECM motor.
  • the ECM motor described above includes a motor and a motor controller, and the motor controller includes a control box and a control circuit board installed in the control box.
  • the control circuit board is integrated with a microprocessor, an inverter circuit, a gear position detecting circuit, and a power supply.
  • the power supply part is connected to the external AC power input, and the output end of the power supply part supplies power to each part of the circuit
  • the gear position detection circuit is connected to a plurality of gear position input lines, and only one of the gear position input lines is selected to be in a conducting state, and the remaining paths are
  • the gear position detecting circuit includes a plurality of current sensing units, and each gear input line is respectively connected to a first input end of a current sensing unit, and the output end of the current sensing unit is connected to the micro terminal.
  • the microprocessor selects the operating parameter of the motor according to the detected power-on state signal of each gear position input line, and controls the motor to operate according to the selected operating parameter, and the current sensing unit detects the input line of several gear positions. 24V low voltage AC signal.
  • the HVAC system controller described above has 4 dry output ports connected to the motor, and a plurality of relays refer to 4, each relay is connected to the socket through a lead wire, and the plurality of independent plug holes are inserted.
  • the connection hole is provided with a connection terminal, and the connection terminal is connected to one end of the lead wire.
  • One of the terminals described above is connected to the end of one lead, the other end of one lead is connected to 24VAC, and the three terminals of the socket are connected to the two outputs of the power supply in the HVAC system and the ground through three leads.
  • the socket described above has two upper and lower rows of insertion holes, each of which has five insertion holes.
  • the HVAC system controller described above has 4 dry output ports connected to the motor, and the control circuit
  • the board is provided with a plurality of light vehicle isolation units, each of which is connected to the socket by a wire.
  • the socket has a plurality of independent insertion holes, the insertion holes are provided with connection terminals, and the connection terminals are connected with one end of the lead wires.
  • One of the terminals described above is connected to the end of one lead, the other end of one lead is connected to 24VAC, and the three terminals of the socket are connected to the two outputs of the power supply in the HVAC system and the ground through three leads.
  • the socket described above has two upper and lower rows of insertion holes, each of which has five insertion holes.
  • connection lead includes a power lead, a relay first connection lead, a relay second connection lead, a 24V AC power lead, and a ground line
  • connection socket is provided with a plurality of insertion holes
  • the connection holes are internally provided with the connection terminals
  • the partial connection terminals are respectively connected with the power lead wires
  • some of the connection terminals are connected with one end of the first connection lead of the relay, and the other end of the first connection lead of the relay
  • One terminal of the switch connected to the relay, the other terminal of the switch of the relay is connected to one end of the second connecting lead of the relay, one terminal is connected to one end of the 24V AC power lead, and one terminal is connected to one end of the grounding wire.
  • the connecting lead mentioned above further comprises a third connecting lead of the relay and a fourth connecting lead of the relay, one end of the third connecting lead of the relay is connected to one terminal of the induction coil of the relay, and one end of the fourth connecting lead of the relay is connected to the induction coil of the relay Another terminal.
  • connection socket described above uses the upper and lower rows of the plug hole structure, each row has 5 plug holes, a plurality of relays refer to 4, the relay first connection lead is 4, and the relay second connection lead is 4 Strip, the power lead has 2 strips.
  • the intermediate connection device for the HVAC system comprises a connection socket, a connection lead, a connection terminal and a control circuit board, and the control circuit board is provided with a plurality of optocoupler isolation units, wherein the connection lead comprises a power lead, a light first connection lead, an optocoupler a second connecting lead, a 24V AC power lead and a grounding wire, the connecting socket is provided with a plurality of plug holes, the plug hole is provided with a connecting terminal, and some of the connecting terminals are respectively connected with the power lead, and some of the connecting terminals and the light first One end of the connecting lead is connected, and the first connecting lead of the light The other end of the line is connected to one output end of the optical isolation unit, and the other output end of the optical isolation unit is connected to one end of the second connection lead of the optocoupler, one terminal is connected to one end of the 24V AC power lead, one terminal and the ground line Connected at one end.
  • the connection lead comprises a power lead, a light first connection lead, an opt
  • the connecting lead mentioned above further comprises an optocoupler third connecting lead and an optocoupler fourth connecting lead.
  • One end of the optocoupler third connecting lead is connected to one input end of the optocoupler isolation unit, and one end of the fourth connecting lead of the optical unit is connected to the optical unit for isolation. The other input of the unit.
  • connection socket described above uses the upper and lower rows of the plug hole structure, each row has 5 plug holes, a plurality of optocoupler isolation units refer to 4, and the optocoupler first connection leads are 4, optocoupler The two connection leads are four, and the power leads have two.
  • the HVAC system of the present invention replaces the HVAC system PSC fan motor with an ECM motor, and the ECM motor uses a gear input signal of 24 VAC, and the HVAC system outputs a high-voltage control signal and ECM through a simple installation connection of the intermediate connection device.
  • the 24VAC gear input signal of the motor is matched to avoid re-development, reduce R&D costs and shorten the development cycle, reduce the product model, and facilitate management purposes;
  • the intermediate connection device includes several relays, one terminal of each induction coil is connected to one of several HVAC system output ports, and the other terminal of each relay's induction coil is connected in parallel to HVAC Another AC input port of the system, one terminal of each relay switch is connected to one gear input line of ECM motor, and the other terminal of each relay switch is connected in parallel to connect 24V low-voltage AC signal, which is simple in structure and realized. Convenience;
  • the intermediate connecting device includes a connecting socket, a connecting lead, a connecting terminal and a control circuit board, and the control circuit board is provided with a plurality of optical vehicle isolation units, which has a simple structure, is convenient to implement, has small volume, and has lower cost;
  • Figure 1 is a schematic view showing the connection between a conventional thermostat and an ECM motor
  • Figure 2 is a schematic diagram of the principle of the utility model
  • Figure 3 is a circuit block diagram of further refinement of Figure 2;
  • Figure 4 is another circuit block diagram of further refinement of Figure 2;
  • FIG. 5 is a perspective view of the ECM motor of the present invention.
  • FIG. 6 is an exploded view of the ECM motor of the present invention.
  • FIG. 7 is a block diagram of the circuit principle of the present invention.
  • Figure 8 is a specific circuit diagram of the gear position detecting circuit of the present invention.
  • Figure 9 is a specific circuit diagram of the intermediate connecting device of the present invention.
  • Figure 10 is a schematic structural view of the intermediate connecting device of the present invention.
  • Figure 11 is another specific circuit diagram of the intermediate connecting device of the present invention.
  • Figure 12 is a schematic view showing another structure of the intermediate connecting device of the present invention.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • an HVAC system originally uses a PSC fan motor, including an HVAC system controller, and now replaces the PSC fan motor with an ECM motor, where:
  • the HVAC system controller has several connections to the motor.
  • the ECM motor is equipped with several gear input lines.
  • the gear input line is connected with a 24V low-voltage AC signal; characterized in that: it also includes an intermediate connection device, The inter-connecting device is connected between the HVAC system controller and the ECM motor, and the intermediate connecting device converts the 115V or 230V AC signal of several output ports of the HVAC system controller into a plurality of gear input lines that can be recognized by the ECM motor. 24V low voltage AC signal.
  • the intermediate connection is provided with a plurality of voltage conversion units, and the voltage conversion unit converts the 115V or 230V AC signals of the plurality of output ports of the HVAC system controller into a plurality of gear input lines that can be recognized by the ECM motor. 24V low voltage AC signal.
  • the intermediate connection device includes four dry relays JK1, JK2, JK3, and JK4, and four relays JK1, JK2, JK3, and 4 are respectively provided with induction coils L1, L2, L3, L4 and switches.
  • One terminal of the induction coil of each relay is connected to one of several HVAC system output ports W1, W2, Yl, ⁇ 2, and the other terminals of the induction coil of each relay are connected in parallel Connect to another AC input port N/L2 of the HVAC system.
  • One terminal of each relay switch is connected to one gear input line of the ECM motor, and the other terminal of each relay switch is connected in parallel to connect 24V low voltage AC.
  • the ECM motor has 4 gear input lines T2, ⁇ 3, ⁇ 4, ⁇ 5, and the gear input line ⁇ 1 is suspended.
  • the intermediate connection device includes a control circuit board, and the control circuit board is provided with four dry optocoupler isolation units U1, U2, U3, and U4, and the two input ends of each optical isolation unit are respectively connected.
  • the other output is connected to a gear input of the ECM motor.
  • the ECM motor has four gear input lines T2, ⁇ 3, ⁇ 4, ⁇ 5, and the gear input line ⁇ 1 is suspended.
  • the utility model is a multifunctional ECM motor, comprising a motor 1 and a motor controller 2.
  • the motor controller 2 comprises a control box 21 and is installed in the control box 21.
  • the control circuit board 22, the control circuit board 22 is integrated with a microprocessor, an inverter circuit, a gear position detecting circuit, a rotor position detecting circuit and a power supply part, the power part is connected to an external AC power input, and the output part of the power part is each part
  • the circuit is powered, the rotor position detecting circuit detects the rotor position signal of the motor through the Hall element HALL and sends it to the microprocessor.
  • the microprocessor controls the motor operation through the inverter circuit, and the gear position detecting circuit is connected to the 5-position gear input lines Tl, T2. , ⁇ 3, ⁇ 4, ⁇ 5, only one of the gear input lines is selected to be in the on state, and the remaining channels are selected to be in the off state without power, and it also includes the first AC input lead, the second AC input lead L, A common lead C0M1, a ground lead E, the gear position detecting circuit comprises a plurality of current sensing units, each of which is connected to a current sensing unit An input end, the output of the current sensing unit is connected to the input end of the microprocessor, and the microprocessor is based on the detected The power status signal of each gear position input line selects the operating parameters of the motor, and controls the motor to run according to the selected operating parameters.
  • the current sensing unit is a Hall current sensor chip, which can be found in the market.
  • a number of gear position input lines may be 5-position gear input lines ⁇ 1, ⁇ 2, ⁇ 3, ⁇ 4, ⁇ 5, or may only be 3-position gear input lines Tl, ⁇ 2, ⁇ 3. Operating parameters can be used to make speed or torque.
  • the output of the gear position detecting circuit is connected to the microprocessor through a filter circuit.
  • the 4-way gear input lines ⁇ 2, ⁇ 3, ⁇ 4, ⁇ 5 are respectively connected to the four output ports Wl, W2 of the HVAC system controller through the intermediate connection device.
  • Yl, ⁇ 2, gear input line ⁇ 5 is suspended;
  • ECM motor several gear input lines T2, ⁇ 3, ⁇ 4, ⁇ 5 one of them is connected to 24V low-voltage AC, and leads from the common lead C0M1 to form a loop.
  • Embodiment 2 :
  • the intermediate connection device for the HVAC system includes a connection socket 1, a connection lead 2, a connection terminal 3, and a plurality of relays 4, wherein the connection lead 2 includes power supply leads 21L, 21N, and a relay first.
  • the connecting lead 21, the second connecting lead 22 of the relay, the 24V AC power lead 23 and the grounding line 24, the connecting socket 1 is provided with a plurality of plug holes 11, and the connecting holes 11 are provided with the connecting terminals 3, and the partial connecting terminals 3 respectively Connected to the power leads 21L, 21N, the part of the terminal 3 is connected to one end of the first connecting lead 21 of the relay 4, the other end of the first connecting lead 21 of the relay is connected to one terminal of the switch of the relay 4, and the other of the switch of the relay
  • the terminal is connected to one end of the second connecting lead 22 of the relay, one terminal 3 is connected to the end of the 24V AC power lead 23, and one terminal 3 is connected to the end of the grounding line 24.
  • the connecting lead further includes a relay third connecting lead 25, 27, 28, 29 and a relay fourth connecting lead 26, and one end of the third connecting lead 25, 27, 28, 29 of the relay is connected to a terminal of the induction coil of the relay, the relay One end of the four connecting leads 26 is connected to the other terminal of the induction coil of the relay, and the connecting socket 1 is configured by the upper and lower rows of the plug holes 11, each row having five plug holes 11, and the plurality of relays 4 refer to four
  • the first connecting lead 21 of the relay is four
  • the second connecting lead 22 of the relay is four
  • the power lead has two.
  • terminal blocks 3 are provided in the insertion hole 11 and are respectively coded: TO T02, ⁇ 03, T04, T05, L0, N0, E0, CO, wherein the T01 terminal passes through a connecting lead.
  • terminals T02, ⁇ 03, ⁇ 04, ⁇ 05 are respectively connected with four relay first connecting leads 21, terminals L0, NO are respectively connected with power leads 21L, 21N, terminal E0 is connected with grounding line 24, terminals CO and 24V
  • the AC power lead 23 is connected, and the 5-channel gear input lines T1, ⁇ 2, ⁇ 3, ⁇ 4, ⁇ 5, the second AC input lead L, the first AC input lead N, a common lead C0M1, and a ground lead E of the ECM motor are respectively connected with Inside the plug hole 11, nine terminals T01, ⁇ 02, ⁇ 03, ⁇ 04, ⁇ 05, L0, ⁇ 0, ⁇ 0, and CO are electrically connected.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • the intermediate connection device 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 a plurality of optocoupler isolation units U1, U2.
  • the connecting lead 2 comprises a power lead 21L, 21N, an optocoupler first connecting lead 210, a second connecting lead 220, a 24V AC power lead 23 and a grounding line 24, and the connecting socket 1 is provided with a plurality of
  • the insertion hole 11 is provided with a connection terminal 2, and the partial connection terminal 2 is respectively connected with the power lead connection 21L, 21N, and the partial connection terminal 2 is connected with one end of the first connection lead 210 of the light, and the first connection of the light is connected.
  • the other end of the lead 210 is connected to one output end of the optical isolation unit, and the other output end of the optical isolation unit is connected to one end of the second connection lead 220 of the optical unit.
  • One terminal 3 is connected to the end of the 24V AC power lead 23, one The terminal 3 is connected to the grounding terminal 24, and the connecting lead 2 further includes a third connecting lead 250, 270, 280, 290 and a fourth unit of the light.
  • the lead wire 260 is connected to one end of the optical coupling isolating unit, and one end of the optical fourth connecting lead 260 is connected to the other input end of the optical isolation unit.
  • the connection socket 1 structure adopts the structure of the upper and lower rows of the insertion holes 11, each row has 5 insertion holes, a plurality of light isolation units mean 4, and the optical coupling first connection leads 210 are 4, the light vehicle The two connection leads 220 are four, and the power leads have two.
  • terminal blocks 3 are provided in the insertion hole 11 and are respectively coded: TO T02, ⁇ 03, T04, T05, L0, N0, E0, CO, wherein the T01 terminal passes through a connecting lead.
  • terminals T02, ⁇ 03, ⁇ 04, ⁇ 05 are respectively connected to the four light first connecting leads 210, the terminals L0, NO are respectively connected to the power leads 21L, 21N, and the terminal E0 is connected to the ground line 24,
  • the terminal CO is connected to the 24V AC power lead 23, the 5-channel gear input line T1, ⁇ 2, ⁇ 3, ⁇ 4, ⁇ 5, the second AC input lead L, the first AC input lead N, a common lead C0M1, and a ground of the ECM motor.
  • the lead wires E are electrically connected to the inside of the insertion hole 1 1 with nine terminals T01, ⁇ 02, ⁇ 03, ⁇ 04, ⁇ 05, L0, ⁇ 0, ⁇ 0, and CO.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Air Conditioning Control Device (AREA)
  • Control Of Ac Motors In General (AREA)
  • Control Of Multiple Motors (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

一种HVAC系统及用于该系统的中间连接装置,该HVAC系统用ECM电机替换PSC电机,该HVAC系统包括HVAC系统控制器,HVAC系统控制器具有若干个与电机连接的115V或者230V的交流输出端口(W1, W2, Y1, Y2)和一个公共端口,该ECM电机设置若干条24V低压交流档位输入线,并根据被选定处于导通状态的档位输入线来选择电机的运行参数;该HVAC系统还包括一中间连接装置,中间连接装置连接在HVAC系统控制器与ECM电机之间,中间连接装置将HVAC系统控制器的若干个输出端口的115V或者230V的交流电信号转换成可以被ECM电机的若干条档位输入线识别的24V低压交流信号,避免重新开发,降低研发成本,减少产品型号,方便管理。

Description

一种 H VAC系统及其应用的中间连接装置 技术领域:
本实用新型涉及一种 HVAC系统及其应用的中间连接装置。
背景技术:
近几年, 随着电器领域竟争日趋激烈, 对产品技术要求不断提高, 如要求 产品节能环保、 可控性智能化程度高、 开发周期短、 噪音小等。 作为核心部件 一一电机, 无疑成为解决上述技术问题的关键部件, 传统的家用中央空调里面 的电机普遍釆用单相交流电机 PSC, 单相交流电机, 效率低, 比较耗能、 噪音也 大, 可控性智能程度低。
随着电机技术的发展, 出现了永磁同步电机, 该种电机带有电机控制器, 利用电机控制器实现电流的电子换向的目的, 所以行业里也有人简称 ECM电机 ( e lec t ron i ca l ly commuta ted motor ), 7 磁同步电机具有节能环保、 可靠' )·生 和可控性都比较高、 噪音小、 容易实现智能化等特点, 可以解决单向交流电机 的不足, 因此, 现有的家用中央空调里面的单向交流电机逐渐被永磁同步电机 所取替。 但是由于单相交流电机与永磁同步电机的电路接口存在较大差别, 电 机难以兼容两种不同的电路接口。 当用永磁同步电机替换现有家用中央空调里 面的单向交流电机时, 需要更换电机的电路接口、 修改电机电路等, 更换不方 便, 更换成本高。
有鉴于此, 目前已经开发出 ECM电机可以直接替换原来的 PSC电机, 而无 须改变 PSC电机原来应用系统(例如 HVAC空调控制系统) 的电路结构, 安装调 试简单, 降低开发成本。
而且目前替换单相交流电机的 ECM电机还普遍存在如下问题:
ECM 电机电机功能单一, 不能适用于不同的工作场合, 例如用恒温器 THERMOSTAT驱动的 ECM电机 , 如图 1所示, 由于恒温器 THERMOSTAT的输出端 口 (Wl、 、 Yl、 Y2、 G )输出的是 24VAC信号, ECM电机的 5条档位线 Tl、 T2、 T3、 T4、 Τ5输入的是 24VAC信号, 而原来使用 PSC风机电机的的 HVAC系统输出 的是 115VAC或者 230VAC , 两者不兼容 , 由此, 有必要提出一种解决方案, 拓 宽现有 HVAC系统的 ECM电机的使用范围, 避免重复开发, 降低研发成本和缩短 研发周期, 方便管理的目的。
发明内容 :
本实用新型的目的是提供一种 HVAC系统, 用 ECM电机替换 HVAC系统 PSC 风机电机, 而 ECM电机釆用档位输入信号是 24VAC, 通过中间连接装置的简单安 装连接, 使 HVAC系统的输出高压控制信号与 ECM电机的 24VAC档位输入信号匹 配, 避免重新开发, 降低研发成本和缩短研发周期, 减少产品型号, 方便管理 的目的。
本实用新型的另一个目的是提供中间连接装置, 通过该装置可以使 HVAC系 统的输出高压控制信号与 ECM电机的 24VAC档位输入信号匹配, 结构简单, 避 免重新开发 ECM 电机, 降低研发成本和缩短研发周期, 减少产品型号, 方便管 理的目的。
本实用新型的目的是通过下述技术方案予以实现的。
一种 HVAC系统, 所述的 HVAC系统原来是使用 PSC风机电机, 包括 HVAC系 统控制器, 现在用 ECM电机替换 PSC风机电机, 其中:
HVAC 系统控制器具有若干个与电机连接的输出端口和两个交流输入端口; 其中一个交流输入端口分别通过若干的 HVAC系统内部的继电器分别与输出端口 连接, 若干个输出端口中有一个通 115V或者 230V的交流电信号; 所述的 ECM 电机设置若干条档位输入线, 档位输入线只有一路被选定处于导通状态, 其余 各路被选定处于断开状态没有电, ECM根据该被选定处于导通状态档位输入线来 选择电机的运行参数, 并控制电机按选择的运行参数运行, 档位输入线釆用 24V 低压交流信号来接通;另外它还包括一中间连接装置,中间连接装置连接在 HVAC 系统控制器与 ECM电机之间,中间连接装置将 HVAC系统控制器的若干个输出端 口的 115V或者 230V的交流电信号转换成可以被 ECM电机的若干条档位输入线 识别的 24V低压交流信号。 上述所述的中间连接装置包括若干个继电器, 每个继电器的感应线圈的一个 接线端连接若干个 HVAC系统输出端口中有的一个,每个继电器的感应线圈的另 一个接线端并联起来连接到 HVAC系统的另一个交流输入端口, 每个继电器的开 关的一个接线端连接 ECM电机的一根档位输入线, 每个继电器的开关的另一个 接线端并联起来连接 24V低压交流信号。
上述所述的中间连接装置包括有一个控制线路板, 控制线路板设置若干个光 耦隔离单元,每个光辆隔离单元的两输入端分别连接 HVAC系统的一个输出端口 和 HVAC系统的另一个交流输入端口, 每个光辆隔离单元的一个输出端连接 24V 低压交流信号, 每个光耦隔离单元的另一个输出连接 ECM电机的一条档位输入。
上述所述的 ECM电机包括电机和电机控制器, 电机控制器包括控制盒和安 装在控制盒里面的控制线路板, 控制线路板上集成有微处理器、 逆变电路、 档 位检测电路和电源部分, 电源部分连接外部交流电源输入, 电源部分的输出端 为各部分电路供电, 档位检测电路连接若干路档位输入线, 档位输入线只有一 路被选定处于导通状态, 其余各路被选定处于断开状态没有电, 档位检测电路 包括若干块电流传感单元, 每路档位输入线分别连接一块电流传感单元的第一 输入端, 电流传感单元的输出端连接微处理器的输入端, 微处理器根据检测到 的各路档位输入线通电状态信号选择电机的运行参数, 并控制电机按选择的运 行参数运行, 电流传感单元检测若干路档位输入线的 24V低压交流信号。
上述所述的 HVAC系统控制器具有 4干个与电机连接的输出端口, 若干个继 电器是指 4个, 每个继电器通过引线连接到插座中, 所述的具有若干个独立的 插接孔, 插接孔安装有接线端子, 接线端子与引线一端连接。
上述所述的插座中的一个端子连接一根引线的端部, 一根引线的另一端连 接 24VAC, 插座中的 3个端子通过三根引线连接到 HVAC系统中电源的两个输出 端和接地端。
上述所述的插座具有上下两排的插接孔, 每排具有 5个插接孔。
上述所述的 HVAC系统控制器具有 4干个与电机连接的输出端口,控制线路 板设置若干个光辆隔离单元, 每个光耦隔离单元通过引线连接到插座中, 所述 的具有若干个独立的插接孔, 插接孔安装有接线端子, 接线端子与引线一端连 接。
上述所述的插座中的一个端子连接一根引线的端部, 一根引线的另一端连 接 24VAC, 插座中的 3个端子通过三根引线连接到 HVAC系统中电源的两个输出 端和接地端。
上述所述的插座具有上下两排的插接孔, 每排具有 5个插接孔。
用于 HVAC系统的中间连接装置, 包括连接插座、 连接引线、 接线端子和若 干个继电器, 其中连接引线包括电源引线、 继电器第一连接引线、 继电器第二 连接引线、 24V交流电源引线和接地线, 连接插座上设置有若干个插接孔, 插接 孔里面安装有接线端子, 部分接线端子分别与电源引线连接, 部分接线端子与 继电器第一连接引线的一端连接, 继电器第一连接引线的另一端连接继电器的 开关的一个接线端, 继电器的开关的另一个接线端连接继电器第二连接引线的 一端, 一个接线端子与 24V交流电源引线一端连接, 一个接线端子与接地线一 端连接。
上述所述的连接引线还包括继电器第三连接引线和继电器第四连接引线, 继电器第三连接引线的一端连接继电器的感应线圈的一个接线端, 继电器第四 连接引线的一端连接继电器的感应线圈的另一个接线端。
上述所述的连接插座釆用上下两排的插接孔结构, 每排具有 5个插接孔, 若 干个继电器是指 4个, 继电器第一连接引线是 4条, 继电器第二连接引线是 4 条, 电源引线具有 2条。
用于 HVAC系统的中间连接装置, 包括连接插座、 连接引线、 接线端子和控 制线路板, 控制线路板设置若干个光耦隔离单元, 其中连接引线包括电源引线、 光辆第一连接引线、 光耦第二连接引线、 24V交流电源引线和接地线, 连接插座 上设置有若干个插接孔, 插接孔里面安装有接线端子, 部分接线端子分别与电 源引线连接, 部分接线端子与光辆第一连接引线的一端连接, 光辆第一连接引 线的另一端连接光辆隔离单元的一个输出端, 光辆隔离单元的另一个输出端连 接光耦第二连接引线的一端, 一个接线端子与 24V交流电源引线一端连接, 一 个接线端子与接地线一端连接。
上述所述的连接引线还包括 光耦第三连接引线和光耦第四连接引线, 光耦 第三连接引线的一端连接光耦隔离单元一个输入端, 光辆第四连接引线的一端 连接光辆隔离单元的另一个输入端。
上述所述的连接插座釆用上下两排的插接孔结构, 每排具有 5个插接孔, 若干个光耦隔离单元是指 4个, 光耦第一连接引线是 4条, 光耦第二连接引线 是 4条, 电源引线具有 2条。
本实用新型与现有技术相比, 具有如下效果:
1 )本实用新型的 HVAC系统, 用 ECM电机替换 HVAC系统 PSC风机电机, 而 ECM电机釆用档位输入信号是 24VAC,通过中间连接装置的简单安装连接,使 HVAC 系统的输出高压控制信号与 ECM电机的 24VAC档位输入信号匹配, 避免重新开 发, 降低研发成本和缩短研发周期, 减少产品型号, 方便管理的目的;
2 ) 中间连接装置的, 包括若干个继电器, 每个继电器的感应线圈的一个接 线端连接若干个 HVAC系统输出端口中有的一个,每个继电器的感应线圈的另一 个接线端并联起来连接到 HVAC系统的另一个交流输入端口, 每个继电器的开关 的一个接线端连接 ECM 电机的一根档位输入线, 每个继电器的开关的另一个接 线端并联起来连接 24V低压交流信号, 结构简单, 实现方便;
3 ) 中间连接装置的, 包括连接插座、 连接引线、 接线端子和控制线路板, 控制线路板设置若干个光辆隔离单元, 结构简单, 实现方便, 体积小, 成本更 加低;
附图说明:
图 1 是传统的恒温器与 ECM电机的连接示意图;
图 2 是本实用新型原理示意图;
图 3 是图 2进一步的细化的一种电路方框图; 图 4 是是图 2进一步的细化的另一种电路方框图;
图 5 是本实用新型 ECM电机的立体图;
图 6 是本实用新型 ECM电机的分解图;
图 7 是本实用新型的电路原理方框图;
图 8 是本实用新型档位检测电路的具体电路图;
图 9 是本实用新型中间连接装置的一种具体电路图;
图 10是本实用新型中间连接装置的一种结构示意图;
图 11 是本实用新型中间连接装置的另一种具体电路图;
图 12是本实用新型中间连接装置的另一种结构示意图。
具体实施方式:
实施例一:
如图 1所示,一种 HVAC系统,所述的 HVAC系统原来是使用 PSC风机电机, 包括 HVAC系统控制器, 现在用 ECM电机替换 PSC风机电机, 其中: HVAC系统控 制器具有若干个与电机连接的输出端口 W1、W2、Y1、Y2和两个交流输入端口 L/L1、 N\L2; ,其中一个交流输入端口 L/L1分别通过若干的 HVAC系统内部的继电器 Rl、 R2、 R3、 R4分别与输出端口 Wl、 W2、 Yl、 Υ2连接, 控制若干的继电器 Rl、 R2、 R3、 R4使若干个输出端口 Wl、 W2、 Yl、 Υ2中有一个通 115V或者 230V的交流电 信号; 所述的 ECM电机设置若干条档位输入线, 档位输入线只有一路被选定处 于导通状态, 其余各路被选定处于断开状态没有电, ECM根据该被选定处于导通 状态档位输入线来选择电机的运行参数, 并控制电机按选择的运行参数运行, 档位输入线釆用 24V低压交流信号来接通; 其特征在于: 它还包括一中间连接 装置, 中间连接装置连接在 HVAC系统控制器与 ECM电机之间, 中间连接装置将 HVAC系统控制器的若干个输出端口的 115V或者 230V的交流电信号转换成可以 被 ECM电机的若干条档位输入线识别的 24V低压交流信号。 所述的中间连接装 若干个电压转换单元, 电压转换单元将 HVAC系统控制器的若干个输出端口的 115V或者 230V的交流电信号转换成可以被 ECM电机的若干条档位输入线识别的 24V低压交流信号。
如图 3所示, 所述的中间连接装置包括 4干个继电器 JK1、 JK2、 JK3、 JK4 , 4个继电器 JK1、 JK2、 JK3、 4里面分别设置有感应线圈 Ll、 L2、 L3、 L4和开 关 Kl、 K2、 K3、 k4 ; 每个继电器的感应线圈的一个接线端连接若干个 HVAC系 统输出端口 Wl、 W2、 Yl、 Υ2中有的一个, 每个继电器的感应线圈的另一个接线 端并联起来连接到 HVAC系统的另一个交流输入端口 N/L2,每个继电器的开关的 一个接线端连接 ECM电机的一根档位输入线, 每个继电器的开关的另一个接线 端并联起来连接 24V低压交流信号, ECM电机具有 4根档位输入线 T2、 Τ3、 Τ4、 Τ5, 档位输入线 Τ1悬空。
如图 4所示, 所述的中间连接装置包括有一个控制线路板, 控制线路板设 置 4干个光耦隔离单元 Ul、 U2、 U3、 U4, 每个光辆隔离单元的两输入端分别连 接 HVAC系统的一个输出端口 、 W2、 Yl、 Υ2和公共端口 C0MHVAC系统的另一 个交流输入端口 N/L2,每个光辆隔离单元的一个输出端连接 24V低压交流信号, 每个光辆隔离单元的另一个输出连接 ECM电机的一条档位输入, ECM电机具有 4 根档位输入线 T2、 Τ3、 Τ4、 Τ5, 档位输入线 Τ1悬空。
如图 5、 图 6、 图 7和图 8所示, 本实用新型是一种多功能 ECM电机, 包括 电机 1和电机控制器 2,电机控制器 2包括控制盒 21和安装在控制盒 21里面的 控制线路板 22, 控制线路板 22上集成有微处理器、 逆变电路、 档位检测电路、 转子位置检测电路和电源部分, 电源部分连接外部交流电源输入, 电源部分的 输出端为各部分电路供电, 转子位置检测电路通过霍尔元件 HALL检测电机的转 子位置信号并送到微处理器, 微处理器通过逆变电路控制电机运行, 档位检测 电路连接 5路档位输入线 Tl、 T2、 Τ3, Τ4, Τ5, 档位输入线只有一路被选定处 于导通状态, 其余各路被选定处于断开状态没有电, 它还包括第一交流输入引 线 、 第二交流输入引线 L、 一公共引线 C0M1、 一接地引线 E,档位检测电路包 括若干块电流传感单元, 每路档位输入线分别连接一块电流传感单元的第一输 入端, 电流传感单元的输出端连接微处理器的输入端, 微处理器根据检测到的 各路档位输入线通电状态信号选择电机的运行参数, 并控制电机按选择的运行 参数运行, 电流传感单元是霍尔电流传感器芯片, 在市场上都可以找到。 若干 路档位输入线可以是 5路档位输入线 Τ1、 Τ2、 Τ3, Τ4, Τ5, 也可以只是 3路档 位输入线 Tl、 Τ2、 Τ3。 运行参数可以使转速或者力矩。 档位检测电路的输出端 通过滤波电路与微处理器连接。
当用 ECM电机要替换市场上相应的 HVAC系统使用的 PSC电机时, 将 4路档 位输入线 Τ2、 Τ3、 Τ4, Τ5通过中间连接装置分别连接在 HVAC系统控制器 4个 输出端口 Wl、 W2、 Yl、 Υ2, 档位输入线 Τ5悬空; ECM电机的若干条档位输入线 T2、 Τ3、 Τ4, Τ5其中一路通入 24V低压交流, 从公共引线 C0M1引出形成回路。 实施例二:
如图 9、 图 10所示, 用于 HVAC系统的中间连接装置, 包括连接插座 1、 连 接引线 2、 接线端子 3和若干个继电器 4, 其中连接引线 2包括电源引线 21L、 21N、 继电器第一连接引线 21、 继电器第二连接引线 22、 24V交流电源引线 23 和接地线 24, 连接插座 1上设置有若干个插接孔 11, 插接孔 11里面安装有接 线端子 3, 部分接线端子 3分别与电源引线 21L、 21N连接, 部分接线端子 3与 继电器 4第一连接引线 21的一端连接, 继电器第一连接引线 21的另一端连接 继电器 4的开关的一个接线端, 继电器的开关的另一个接线端连接继电器第二 连接引线 22的一端, 一个接线端子 3与 24V交流电源引线 23—端连接, 一个 接线端子 3与接地线 24—端连接。连接引线还包括继电器第三连接引线 25、 27、 28、 29和继电器第四连接引线 26, 继电器第三连接引线 25、 27、 28、 29的一 端连接继电器的感应线圈的一个接线端, 继电器第四连接引线 26的一端连接 继电器的感应线圈的另一个接线端,连接插座 1釆用上下两排的插接孔 11结构, 每排具有 5个插接孔 11, 若干个继电器 4是指 4个, 继电器第一连接引线 21是 4条, 继电器第二连接引线 22是 4条, 电源引线具有 2条。
如图 9所示, 假设插接孔 11里面设置有 9个接线端子 3, 分别用代号编写: TO T02、 Τ03 , T04、 T05、 L0、 N0、 E0、 CO , 其中 T01端子通过一根连接引线 2引出并悬空, 端子 T02、 Τ03、 Τ04, Τ05分别与 4根继电器第一连接引线 21连 接, 端子 L0、 NO分别与电源引线 21L、 21N连接, 端子 E0与接地线 24连接, 端子 CO与 24V交流电源引线 23连接, ECM电机的 5路档位输入线 Tl、 Τ2、 Τ3, Τ4, Τ5、 第二交流输入引线 L、 第一交流输入引线 N、 一公共引线 C0M1、 一接地 引线 E分别与插接孔 11里面设置有 9个接线端子 T01、 Τ02、 Τ03, Τ04、 Τ05、 L0、 Ν0、 Ε0、 CO电连接起来。
实施例三:
如图 11、 图 12所示, 用于 HVAC系统的中间连接装置, 包括连接插座 1、 连接引线 2、 接线端子 3和控制线路板 100, 控制线路板 100设置若干个光耦隔 离单元 Ul、 U2、 U3和 U4, 其中连接引线 2包括电源引线 21L、 21N、 光耦第一 连接引线 210、 光辆第二连接引线 220、 24V交流电源引线 23和接地线 24, 连 接插座 1上设置有若干个插接孔 11, 插接孔 11里面安装有接线端子 2, 部分接 线端子 2分别与电源引线连接 21L、 21N, 部分接线端子 2与光辆第一连接引线 210的一端连接,光辆第一连接引线 210的另一端连接光辆隔离单元的一个输出 端, 光辆隔离单元的另一个输出端连接光辆第二连接引线 220的一端, 一个接 线端子 3与 24V交流电源引线 23—端连接, 一个接线端子 3与接地线 24—端 连接, 连接引线 2还包括光辆第三连接引线 250、 270、 280、 290和光辆第四连 接引线 260, 光辆第三连接引线 250、 270、 280、 290的一端连接光耦隔离单元 一个输入端, 光辆第四连接引线 260的一端连接光辆隔离单元的另一个输入端。 连接插 1座釆用上下两排的插接孔 11结构, 每排具有 5个插接孔, 若干个光辆 隔离单元是指 4个, 光耦第一连接引线 210是 4条, 光辆第二连接引线 220是 4 条, 电源引线具有 2条。
如图 11所示,假设插接孔 11里面设置有 9个接线端子 3,分别用代号编写: TO T02、 Τ03, T04、 T05、 L0、 N0、 E0、 CO, 其中 T01端子通过一根连接引线 2引出并悬空, 端子 T02、 Τ03、 Τ04, Τ05分别与 4根光辆第一连接引线 210连 接, 端子 L0、 NO分别与电源引线 21L、 21N连接, 端子 E0与接地线 24连接, 端子 C O与 24V交流电源引线 23连接, ECM电机的 5路档位输入线 Tl、 Τ2、 Τ3, Τ4, Τ5、 第二交流输入引线 L、 第一交流输入引线 N、 一公共引线 C0M1、 一接地 引线 E分别与插接孔 1 1里面设置有 9个接线端子 T01、 Τ02、 Τ03 , Τ04、 Τ05、 L0、 Ν0、 Ε 0、 CO电连接起来。
以上实施例为本发明的较佳实施方式, 但本发明的实施方式不限于此, 其 他任何未背离本发明的精神实质与原理下所作的改变、 修饰、 替代、 组合、 简 化, 均为等效的置换方式, 都包含在本发明的保护范围之内。

Claims

权利要求
1、 一种 HVAC系统, 所述的 HVAC系统原来是使用 PSC风机电机, 包括 HVAC 系统控制器, 现在用 ECM电机替换 PSC风机电机, 其中:
HVAC系统控制器具有若干个与电机连接的输出端口 (Wl、 、 Yl、 Υ2 )和 两个交流输入端口 (L/L1、 N\L2 );其中一个交流输入端口 (L/L1 )分别通过若 干的 HVAC系统内部的继电器(Rl、 R2、 R3、 R4 )分别与输出端口 (Wl、 W2、 Yl、 Υ2 )连接, 若干个输出端口 (Wl、 W2、 Yl、 Υ2 ) 中有一个通 115V或者 230V的 交流电信号;
所述的 ECM电机设置若干条档位输入线, 档位输入线至少一路被选定处于 导通状态, 其余各路被选定处于断开状态没有电, ECM根据该被选定处于导通状 态档位输入线来选择电机的运行参数, 并控制电机按选择的运行参数运行, 档 位输入线釆用 24V低压交流信号来接通;
其特征在于: 它还包括一中间连接装置, 中间连接装置连接在 HVAC系统控 制器与 ECM电机之间, 中间连接装置将 HVAC系统控制器的若干个输出端口的 115V或者 230V的交流电信号转换成可以被 ECM电机的若干条档位输入线识别的 24V低压交流信号。
2、 根据权利要求 1所述的一种 HVAC系统, 其特征在于: 所述的中间连接 装置包括若干个继电器, 每个继电器的感应线圈的一个接线端连接若干个 HVAC 系统输出端口 ( Ψί、 W2、 Yl、 Υ2 ) 中有的一个, 每个继电器的感应线圈的另一 个接线端并联起来连接 HVAC系统的另一个交流输入端口 (N/L2 ), 每个继电器 的开关的一个接线端连接 ECM电机的一根档位输入线, 每个继电器的开关的另 一个接线端并联起来连接 24V低压交流信号。
3、 根据权利要求 1所述的一种 HVAC系统其特征在于: 所述的中间连接装 置包括有一个控制线路板, 控制线路板设置若干个光耦隔离单元, 每个光耦隔 离单元的两输入端分别连接 HVAC系统的一个输出端口 (Wl、 W2、 Yl、 Υ2 )和 HVAC系统的另一个交流输入端口(N/L2 ),每个光辆隔离单元的一个输出端连接 24V低压交流信号,每个光辆隔离单元的另一个输出连接 ECM电机的一条档位输 入。
4、 根据权利要求 1或 2或 3所述的一种 HVAC系统其特征在于: 所述的 ECM 电机包括电机和电机控制器, 电机控制器包括控制盒和安装在控制盒里面的控 制线路板, 控制线路板上集成有微处理器、 逆变电路、 档位检测电路和电源部 分, 电源部分连接外部交流电源输入, 电源部分的输出端为各部分电路供电, 档位检测电路连接若干路档位输入线, 档位输入线只有一路被选定处于导通状 态, 其余各路被选定处于断开状态没有电, 档位检测电路包括若干块电流传感 单元, 每路档位输入线分别连接一块电流传感单元的第一输入端, 电流传感单 元的输出端连接微处理器的输入端, 微处理器根据检测到的各路档位输入线通 电状态信号选择电机的运行参数, 并控制电机按选择的运行参数运行, 电流传 感单元检测若干路档位输入线的 24V低压交流信号。
5、 根据权利要求 1或 2所述的一种 HVAC系统其特征在于: HVAC系统控制 器具有 4干个与电机连接的输出端口 (Wl、 W2、 Yl、 Υ2 ), 若干个继电器是指 4 个, 每个继电器通过引线连接到插座中, 所述的具有若干个独立的插接孔, 插 接孔安装有接线端子, 接线端子与引线一端连接。
6、 根据权利要求 5所述的一种 HVAC系统其特征在于: 插座中的一个端子 ( C )连接一根引线的端部, 一根引线的另一端连接 24VAC , 插座中的 3个端子 ( L、 N、 G )通过三根引线连接到 HVAC系统中电源的两个输出端和接地端。
7、 根据权利要求 6所述的一种 HVAC系统其特征在于: 插座具有上下两排 的插接孔, 每排具有 5个插接孔。
8、 根据权利要求 1或 3所述的一种 HVAC系统其特征在于: HVAC系统控制 器具有 4干个与电机连接的输出端口 (Wl、 W2、 Yl、 Υ2 ), 控制线路板设置若干 个光耦隔离单元, 每个光辆隔离单元通过引线连接到插座中, 所述的具有若干 个独立的插接孔, 插接孔安装有接线端子, 接线端子与引线一端连接。
9、 根据权利要求 8所述的一种 HVAC系统其特征在于: 插座中的一个端子 ( C )连接一根引线的端部, 一根引线的另一端连接 24VAC , 插座中的 3个端子 ( L、 N、 G )通过三根引线连接到 HVAC系统中电源的两个输出端和接地端。
10、 根据权利要求 8所述的一种 HVAC系统其特征在于: 插座具有上下两排 的插接孔, 每排具有 5个插接孔。
11、 用于权利要求 2所述的 HVAC系统的中间连接装置, 其特征在于: 包括 连接插座、 连接引线、 接线端子和若干个继电器, 其中连接引线包括电源引线、 继电器第一连接引线、 继电器第二连接引线、 24V交流电源引线和接地线, 连接 插座上设置有若干个插接孔, 插接孔里面安装有接线端子, 部分接线端子分别 与电源引线连接, 部分接线端子与继电器第一连接引线的一端连接, 继电器第 一连接引线的另一端连接继电器的开关的一个接线端, 继电器的开关的另一个 接线端连接继电器第二连接引线的一端, 一个接线端子与 24V交流电源引线一 端连接, 一个接线端子与接地线一端连接。
12、 根据权利要求 11所述的中间连接装置, 其特征在于: 连接引线还包括 继电器第三连接引线和继电器第四连接引线, 继电器第三连接引线的一端连接 继电器的感应线圈的一个接线端, 继电器第四连接引线的一端连接继电器的感 应线圈的另一个接线端。
13、 根据根据权利要求 11或 12所述的中间连接装置, 其特征在于: 连接 插座釆用上下两排的插接孔结构, 每排具有 5个插接孔, 若干个继电器是指 4 个, 继电器第一连接引线是 4条, 继电器第二连接引线是 4条, 电源引线具有 2 条。
14、 用于权利要求 3所述的 HVAC系统的中间连接装置, 其特征在于: 包 括连接插座、 连接引线、 接线端子和控制线路板, 控制线路板设置若干个光辆 隔离单元, 其中连接引线包括电源引线、 光辆第一连接引线、 光辆第二连接引 线、 24V交流电源引线和接地线, 连接插座上设置有若干个插接孔, 插接孔里面 安装有接线端子, 部分接线端子分别与电源引线连接, 部分接线端子与光辆第 一连接引线的一端连接, 光耦第一连接引线的另一端连接光辆隔离单元的一个 输出端, 光耦隔离单元的另一个输出端连接光辆第二连接引线的一端, 一个接 线端子与 24V交流电源引线一端连接, 一个接线端子与接地线一端连接。
15、 根据权利要求 14所述的中间连接装置, 其特征在于: 连接引线还包括 光耦第三连接引线和光耦第四连接引线, 光耦第三连接引线的一端连接光耦隔 离单元一个输入端, 光耦第四连接弓 I线的一端连接光耦隔离单元的另一个输入 端。
16、 根据权利要求 15所述的中间连接装置, 其特征在于: 连接插座釆用上 下两排的插接孔结构, 每排具有 5个插接孔, 若干个光耦隔离单元是指 4个, 光辆第一连接引线是 4条, 光辆第二连接引线是 4条, 电源引线具有 2条。
PCT/CN2014/077346 2014-04-30 2014-05-13 一种hvac系统及其应用的中间连接装置 Ceased WO2015165129A1 (zh)

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