EP2665976A2 - Piping communication system - Google Patents

Piping communication system

Info

Publication number
EP2665976A2
EP2665976A2 EP12736455.2A EP12736455A EP2665976A2 EP 2665976 A2 EP2665976 A2 EP 2665976A2 EP 12736455 A EP12736455 A EP 12736455A EP 2665976 A2 EP2665976 A2 EP 2665976A2
Authority
EP
European Patent Office
Prior art keywords
piping
unit case
communication system
unit
outdoor
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.)
Granted
Application number
EP12736455.2A
Other languages
German (de)
French (fr)
Other versions
EP2665976A4 (en
EP2665976B1 (en
Inventor
Chisun Ahn
Sangchul Youn
Seungtae Ko
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.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of EP2665976A2 publication Critical patent/EP2665976A2/en
Publication of EP2665976A4 publication Critical patent/EP2665976A4/en
Application granted granted Critical
Publication of EP2665976B1 publication Critical patent/EP2665976B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/26—Refrigerant piping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/26—Refrigerant piping
    • F24F1/32—Refrigerant piping for connecting the separate outdoor units to indoor units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/40—Vibration or noise prevention at outdoor units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers
    • F24F2013/207—Casings or covers with control knobs; Mounting controlling members or control units therein

Definitions

  • the present invention relates to a piping communication system and, more particularly, to a piping communication system in which a signal transmission unit is installed within an outdoor unit or an indoor unit.
  • an air-conditioner is divided into an indoor unit and an outdoor unit, and the indoor unit and the outdoor unit are electrically connected to transfer an electrical signal.
  • the indoor unit and the outdoor unit are electrically connected to transfer an electrical signal.
  • a technique of transmitting and receiving an electrical signal by using a refrigerant piping connecting a plurality of indoor units and a smaller number of outdoor units than that of the indoor units has been introduced.
  • a gas refrigerant piping referred to as a gas piping , hereinafter
  • a liquid refrigerant piping referred to as a liquid piping , hereinafter
  • a signal transmission unit is installed at the refrigerant piping and a signal line of the signal transmission unit electrically connects the respective control boards and the refrigerating piping.
  • the signal transmission unit may be installed at an outer side of an outdoor unit case or an indoor unit case, and according to circumstances, the signal transmission unit is installed within the outdoor unit case or the indoor unit case and the assembling state may be desirably maintained.
  • the signal transmission unit in case in which the signal transmission unit is installed within the outdoor unit case or the indoor unit case, when the refrigerant piping vibrates, the signal transmission unit may be brought into contact with a neighboring different conductor to cause a short.
  • an object of the present invention is to provide a piping communication system capable of restraining a refrigerant piping from vibrating to thus prevent a signal transmission unit coupled to the refrigerating piping from being shorted.
  • a piping communication system including: a refrigerant piping connecting an outdoor heat exchanger and an indoor heat exchanger through an outdoor unit case and an indoor unit case; a signal transmission unit electrically connected to the refrigerant piping to transfer a signal transmitted or received through the refrigerant piping to a microcomputer; and a vibration preventing member installed between the outdoor unit case or the indoor unit case and the refrigerant piping to support the refrigerant piping with respect to the outdoor unit case or the indoor unit case.
  • the vibration preventing member covering the refrigerant piping is provided between the outdoor unit case or the indoor unit case and the refrigerant piping, although vibration is transferred to the refrigerant piping, the vibration is absorbed or suppressed by the vibration preventing member fixed to the outdoor unit case or the indoor unit case, thus reducing the amplitude of the refrigerant piping, whereby although the signal transmission unit is installed within the outdoor unit case of the indoor unit case, the signal transmission unit can be prevented from being brought into contact with neighboring components and shorted.
  • FIG. 1 is a distribution diagram of an air-conditioner having a piping communication system according to an embodiment of the present invention
  • FIG. 2 is a perspective view showing an assembling state of a refrigerant piping and an outdoor unit case when a signal transmission unit is installed within an outdoor unit in the air-conditioner according to FIG. 1;
  • FIG. 3 is an enlarged view of a portion A in FIG. 2 and exploded perspective view of a vibration preventing member
  • FIG. 4 is a vertical sectional view showing an embodiment of a method for assembling a vibration preventing member according to FIG. 3;
  • FIG. 5 is a vertical sectional view showing another embodiment of a method for assembling a vibration preventing member according to FIG. 3;
  • FIG. 6 is a front view showing another embodiment of a support portion of the vibration preventing member according to FIG. 3.
  • FIG. 1 is a distribution diagram of an air-conditioner having a piping communication system according to an embodiment of the present invention.
  • FIG. 2 is a perspective view showing an assembling state of a refrigerant piping and an outdoor unit case when a signal transmission unit is installed within an outdoor unit in the air-conditioner according to FIG. 1.
  • an indoor unit 10 and an outdoor unit 20 are disposed with an outer wall of a building interposed therebetween and connected such that an electrical signal is transmitted and received between the outdoor unit 10 and the indoor unit 20 through a liquid piping 40 or a gas piping 30.
  • An outdoor heat exchanger 11 of the outdoor unit 10 and an indoor heat exchanger 21 of the indoor unit 20 are connected to both ends of the gas piping 30 and the liquid piping 40, and an outdoor signal transmission unit 13 and an indoor signal transmission unit 23 are installed between the outdoor heat exchanger 11 and the indoor heat exchanger 21 in order to transfer a transferred electric signal to the outdoor control unit 12 of the outdoor unit 10 and the indoor control unit 22 of the indoor unit 20.
  • the outdoor signal transmission unit 13 (here, the outdoor signal transmission unit and the indoor signal transmission unit have the same configuration, so, hereinafter, the outdoor signal transmission unit will be described as a representative example) includes a core assembly 50 coupled to the refrigerant piping 40 (here, the refrigerant piping may correspond to a gas piping or a liquid piping, and hereinafter, a liquid piping will be described) and making impedance with respect to an AC electrical signal, and a plurality of signal terminals 61 and 62 separated from the core assembly 50 and coupled to the liquid piping 40 and electrically connecting the liquid piping 40 and the outdoor control unit 12.
  • a pair of cores generally formed to have a hemispherical section are accommodated in a core holder and coupled to cover up the liquid piping 40.
  • the core assembly 50 has magnetism to make inductance corresponding to one time of winding and is coupled to cover up the gas piping 30 or the liquid piping 40.
  • the AC signal when an AC signal flows through the refrigerant pipings 30 and 40 installed between the outdoor unit 10 and the indoor unit 20, the AC signal has attenuation characteristics according to a distance by the transmission line impedance Z 0 of the pipings themselves.
  • the impedance Z 0 of the transmission line is proportional to the distance, and the signal strength of the AC signal used for detecting the distance of the refrigerant pipings 30 and 40 is reduced by the transmission line impedance Z 0 and the core.
  • the impedance value of the core and the strength of the AC control signal of the transmitter and the receiver are known, inversely, the distance information can be known.
  • the refrigerant pipings may be used as a transmission path of a distance detection signal, whereby a piping distance between the outdoor unit and the indoor unit used for calculating an amount of a refrigerant can be automatically calculated.
  • the refrigerant pipings 30 and 40 are connected to the outdoor heat exchanger 11 through an outdoor unit case 14 (the indoor unit case is the same and, here, the outdoor unit case will be described as an example), and the core assembly 50 and the signal terminals 61 and 62 may be installed outside the outdoor unit case 14 or may be installed within the outdoor unit case 14.
  • the liquid piping 40 When the core assembly 50 and the signal terminals 61 and 62 are installed outside the outdoor unit case 14, although the liquid piping 40 is slightly shaken by a surrounding environment, it does not generate a short with components in the vicinity of the outdoor unit 10, but when the door assembly 50 and the signal terminals 61 and 62 are installed within the outdoor unit case 14, when the liquid piping 40 vibrates, the liquid piping 40 comes into contact with the neighboring components to generate a short.
  • FIG. 3 is an enlarged view of a portion A in FIG. 2 and exploded perspective view of a vibration preventing member.
  • FIG. 4 is a vertical sectional view showing an embodiment of a method for assembling a vibration preventing member according to FIG. 3.
  • FIG. 5 is a vertical sectional view showing another embodiment of a method for assembling a vibration preventing member according to FIG. 3.
  • a vibration preventing member 100 is provided between the refrigerant piping 40 (hereinafter, the liquid piping will be described as an example) and the outdoor unit case or the indoor unit case 14 (hereinafter, the outdoor unit case will be described as an example) and coupled to support the liquid piping 40 with respect to the outdoor unit case 11.
  • the vibration preventing member 100 may include a support unit 110 in which the liquid piping 40 is insertedly supported and a fixed unit 120 formed to extend from an outer circumferential surface of the support unit 110 and fixed to the outdoor unit case 14.
  • the vibration preventing member 100 is made of a material having an elastic modulus greater than that of the outdoor unit case 14.
  • the support unit 110 is formed to have a cylindrical shape having a predetermined length, namely, a length which is longer than the thickness of the outdoor unit case 14 and protruded than one side of the fixing unit 110, and inserted into a piping hole 14a of the outdoor unit case 14.
  • the outer circumferential surface of the support unit 110 may not necessarily have the circular shape but may be formed to have a quadrangular shape or any other shapes.
  • the support unit 110 may have the cylindrical shape as shown in FIG. 3, or according to circumstances, the support unit 110 may be formed to have a cutout face 111 as shown in FIG. 6.
  • the support unit 110 when the vibration preventing member 100 is coupled to the liquid piping 40, the support unit 110 can be open to both sides to insert the liquid piping 40 in a radial direction.
  • the vibration preventing member 100 can be coupled even in a state in which the core assembly is already assembled or the liquid piping is already connected.
  • the fixed unit 120 may be formed to be protruded from both sides or protruded from only one side, and three or more fixed units 120 may be formed.
  • the fixed unit 120 may be formed to be protruded from the entire outer circumferential surface of the support unit 110 in an annular manner.
  • the fixed units 120 may include a through hole 121, respectively, and screw-fastened to a fastening hole 14b provided on the outdoor unit case 14. However, as shown in FIG. 5, the fixed unit 120 may have a hook projection 122 and hook-coupled in a hook hole 14c provided in the outdoor unit case 14.
  • the piping communication system according to the present invention as described above has the following operational effects.
  • the vibration preventing member 100 is installed between the piping hole 14a of the outdoor unit case 14 and the liquid piping 40 inserted into the piping hole 14a.
  • the vibration preventing member 100 includes the support unit 110 in which the liquid piping 40 is inserted and the fixed unit 120 fixed to the outdoor unit case 14 in order to support the liquid piping 40.
  • the vibration is absorbed or suppressed by the vibration preventing member 100 fixed to the outdoor unit case 14, thus reducing amplitude of the liquid piping 40.
  • the core assembly and the signal terminals are coupled to be positioned within the outdoor unit case 14, the core assembly and the signal terminals can be prevented from being in contact with neighboring outdoor unit components, thereby preventing the piping communication system from being shorted.
  • the vibration preventing member is installed between the outdoor unit case and the liquid piping
  • the vibration preventing member may also be installed between the indoor unit case and the liquid piping, between the outdoor unit case and the gas piping, or between the indoor unit case and the gas piping.
  • the basic configuration and operational effect are similar to those of the foregoing embodiment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Pipe Accessories (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The present invention relates to a piping communication system. A vibration preventing member covering the refrigerant piping is provided between an outdoor unit case or an indoor unit case and a refrigerant piping. Thus, although vibration is transferred to the refrigerant piping, the vibration is absorbed or suppressed by the vibration preventing member fixed to the outdoor unit case or the indoor unit case, thus reducing the amplitude of the refrigerant piping, whereby although the signal transmission unit is installed within the outdoor unit case of the indoor unit case, the signal transmission unit can be prevented from being brought into contact with neighboring components and shorted.

Description

    PIPING COMMUNICATION SYSTEM
  • The present invention relates to a piping communication system and, more particularly, to a piping communication system in which a signal transmission unit is installed within an outdoor unit or an indoor unit.
    •
  • In general, an air-conditioner is divided into an indoor unit and an outdoor unit, and the indoor unit and the outdoor unit are electrically connected to transfer an electrical signal. However, when a plurality of indoor units are connected in parallel to a single outdoor unit or when a refrigerant piping is installed within a wall body of a building and a plurality of indoor units are connected in parallel to the refrigerant piping, it is difficult to electrically connect the respective indoor units to a smaller number of outdoor units in many cases.
  • Thus, a technique of transmitting and receiving an electrical signal by using a refrigerant piping connecting a plurality of indoor units and a smaller number of outdoor units than that of the indoor units has been introduced. For example, a gas refrigerant piping (referred to as a gas piping , hereinafter) and a liquid refrigerant piping (referred to as a liquid piping , hereinafter) are electrically connected to a control board of an outdoor unit and a control board of an indoor unit, respectively, so as to be used as communication mediums for transferring a control signal between the indoor units and the outdoor unit. To this end, a signal transmission unit is installed at the refrigerant piping and a signal line of the signal transmission unit electrically connects the respective control boards and the refrigerating piping.
  • The signal transmission unit may be installed at an outer side of an outdoor unit case or an indoor unit case, and according to circumstances, the signal transmission unit is installed within the outdoor unit case or the indoor unit case and the assembling state may be desirably maintained.
  • However, in the related art piping communication system, in case in which the signal transmission unit is installed within the outdoor unit case or the indoor unit case, when the refrigerant piping vibrates, the signal transmission unit may be brought into contact with a neighboring different conductor to cause a short.
    •
  • Therefore, an object of the present invention is to provide a piping communication system capable of restraining a refrigerant piping from vibrating to thus prevent a signal transmission unit coupled to the refrigerating piping from being shorted.
  • In order to achieve the above object, there is provided a piping communication system including: a refrigerant piping connecting an outdoor heat exchanger and an indoor heat exchanger through an outdoor unit case and an indoor unit case; a signal transmission unit electrically connected to the refrigerant piping to transfer a signal transmitted or received through the refrigerant piping to a microcomputer; and a vibration preventing member installed between the outdoor unit case or the indoor unit case and the refrigerant piping to support the refrigerant piping with respect to the outdoor unit case or the indoor unit case.
  • According to the piping communication system of the embodiments of the present invention, since the vibration preventing member covering the refrigerant piping is provided between the outdoor unit case or the indoor unit case and the refrigerant piping, although vibration is transferred to the refrigerant piping, the vibration is absorbed or suppressed by the vibration preventing member fixed to the outdoor unit case or the indoor unit case, thus reducing the amplitude of the refrigerant piping, whereby although the signal transmission unit is installed within the outdoor unit case of the indoor unit case, the signal transmission unit can be prevented from being brought into contact with neighboring components and shorted.
  • FIG. 1 is a distribution diagram of an air-conditioner having a piping communication system according to an embodiment of the present invention;
  • FIG. 2 is a perspective view showing an assembling state of a refrigerant piping and an outdoor unit case when a signal transmission unit is installed within an outdoor unit in the air-conditioner according to FIG. 1;
  • FIG. 3 is an enlarged view of a portion A in FIG. 2 and exploded perspective view of a vibration preventing member;
  • FIG. 4 is a vertical sectional view showing an embodiment of a method for assembling a vibration preventing member according to FIG. 3;
  • FIG. 5 is a vertical sectional view showing another embodiment of a method for assembling a vibration preventing member according to FIG. 3; and
  • FIG. 6 is a front view showing another embodiment of a support portion of the vibration preventing member according to FIG. 3.
  • Hereinafter, a piping communication system according to embodiments of the present invention will be described in detail with reference to the accompanying drawings.
  • FIG. 1 is a distribution diagram of an air-conditioner having a piping communication system according to an embodiment of the present invention. FIG. 2 is a perspective view showing an assembling state of a refrigerant piping and an outdoor unit case when a signal transmission unit is installed within an outdoor unit in the air-conditioner according to FIG. 1.
  • As illustrated, in the air-conditioner having a piping communication system according to an embodiment of the present invention, an indoor unit 10 and an outdoor unit 20 are disposed with an outer wall of a building interposed therebetween and connected such that an electrical signal is transmitted and received between the outdoor unit 10 and the indoor unit 20 through a liquid piping 40 or a gas piping 30.
  • An outdoor heat exchanger 11 of the outdoor unit 10 and an indoor heat exchanger 21 of the indoor unit 20 are connected to both ends of the gas piping 30 and the liquid piping 40, and an outdoor signal transmission unit 13 and an indoor signal transmission unit 23 are installed between the outdoor heat exchanger 11 and the indoor heat exchanger 21 in order to transfer a transferred electric signal to the outdoor control unit 12 of the outdoor unit 10 and the indoor control unit 22 of the indoor unit 20.
  • The outdoor signal transmission unit 13 (here, the outdoor signal transmission unit and the indoor signal transmission unit have the same configuration, so, hereinafter, the outdoor signal transmission unit will be described as a representative example) includes a core assembly 50 coupled to the refrigerant piping 40 (here, the refrigerant piping may correspond to a gas piping or a liquid piping, and hereinafter, a liquid piping will be described) and making impedance with respect to an AC electrical signal, and a plurality of signal terminals 61 and 62 separated from the core assembly 50 and coupled to the liquid piping 40 and electrically connecting the liquid piping 40 and the outdoor control unit 12.
  • In the core assembly 50, a pair of cores generally formed to have a hemispherical section are accommodated in a core holder and coupled to cover up the liquid piping 40. The core assembly 50 has magnetism to make inductance corresponding to one time of winding and is coupled to cover up the gas piping 30 or the liquid piping 40.
  • For example, in case of a troidal core having an inner diameter R1, an outer diameter R2, a height h, and magnetic permeability m, self-inductance (L) is L= (mh/2p) In (R2/R1), and it has impedance of Z=j2pfL with respect to an AC signal of a frequency f. Thus, with respect to an AC control signal transmitted by the outdoor control unit 12, a transmission line terminated with impedance of 2*Z is formed at the outer heat exchanger 11 according to the operation of the core through which the gas piping 30 and the liquid piping 40 penetrates.
  • Thus, when an AC signal flows through the refrigerant pipings 30 and 40 installed between the outdoor unit 10 and the indoor unit 20, the AC signal has attenuation characteristics according to a distance by the transmission line impedance Z0 of the pipings themselves. The impedance Z0 of the transmission line is proportional to the distance, and the signal strength of the AC signal used for detecting the distance of the refrigerant pipings 30 and 40 is reduced by the transmission line impedance Z0 and the core. Namely, when the impedance value of the core and the strength of the AC control signal of the transmitter and the receiver are known, inversely, the distance information can be known. The refrigerant pipings may be used as a transmission path of a distance detection signal, whereby a piping distance between the outdoor unit and the indoor unit used for calculating an amount of a refrigerant can be automatically calculated.
  • Here, the refrigerant pipings 30 and 40 are connected to the outdoor heat exchanger 11 through an outdoor unit case 14 (the indoor unit case is the same and, here, the outdoor unit case will be described as an example), and the core assembly 50 and the signal terminals 61 and 62 may be installed outside the outdoor unit case 14 or may be installed within the outdoor unit case 14.
  • When the core assembly 50 and the signal terminals 61 and 62 are installed outside the outdoor unit case 14, although the liquid piping 40 is slightly shaken by a surrounding environment, it does not generate a short with components in the vicinity of the outdoor unit 10, but when the door assembly 50 and the signal terminals 61 and 62 are installed within the outdoor unit case 14, when the liquid piping 40 vibrates, the liquid piping 40 comes into contact with the neighboring components to generate a short.
  • Thus, when the core assembly 50 and the signal terminals 61 and 62 are installed within the outdoor unit case 14, a vibration preventing member for preventing vibration of the liquid piping 40 is required.
  • FIG. 3 is an enlarged view of a portion A in FIG. 2 and exploded perspective view of a vibration preventing member. FIG. 4 is a vertical sectional view showing an embodiment of a method for assembling a vibration preventing member according to FIG. 3. FIG. 5 is a vertical sectional view showing another embodiment of a method for assembling a vibration preventing member according to FIG. 3.
  • As illustrated, a vibration preventing member 100 is provided between the refrigerant piping 40 (hereinafter, the liquid piping will be described as an example) and the outdoor unit case or the indoor unit case 14 (hereinafter, the outdoor unit case will be described as an example) and coupled to support the liquid piping 40 with respect to the outdoor unit case 11.
  • The vibration preventing member 100 may include a support unit 110 in which the liquid piping 40 is insertedly supported and a fixed unit 120 formed to extend from an outer circumferential surface of the support unit 110 and fixed to the outdoor unit case 14. Preferably, the vibration preventing member 100 is made of a material having an elastic modulus greater than that of the outdoor unit case 14.
  • The support unit 110 is formed to have a cylindrical shape having a predetermined length, namely, a length which is longer than the thickness of the outdoor unit case 14 and protruded than one side of the fixing unit 110, and inserted into a piping hole 14a of the outdoor unit case 14. However, the outer circumferential surface of the support unit 110 may not necessarily have the circular shape but may be formed to have a quadrangular shape or any other shapes.
  • The support unit 110 may have the cylindrical shape as shown in FIG. 3, or according to circumstances, the support unit 110 may be formed to have a cutout face 111 as shown in FIG. 6. When the support unit 110 has the cutout face 111, when the vibration preventing member 100 is coupled to the liquid piping 40, the support unit 110 can be open to both sides to insert the liquid piping 40 in a radial direction. Thus, the vibration preventing member 100 can be coupled even in a state in which the core assembly is already assembled or the liquid piping is already connected.
  • As illustrated, the fixed unit 120 may be formed to be protruded from both sides or protruded from only one side, and three or more fixed units 120 may be formed. The fixed unit 120 may be formed to be protruded from the entire outer circumferential surface of the support unit 110 in an annular manner.
  • The fixed units 120 may include a through hole 121, respectively, and screw-fastened to a fastening hole 14b provided on the outdoor unit case 14. However, as shown in FIG. 5, the fixed unit 120 may have a hook projection 122 and hook-coupled in a hook hole 14c provided in the outdoor unit case 14.
  • The piping communication system according to the present invention as described above has the following operational effects.
  • Namely, the vibration preventing member 100 is installed between the piping hole 14a of the outdoor unit case 14 and the liquid piping 40 inserted into the piping hole 14a. The vibration preventing member 100 includes the support unit 110 in which the liquid piping 40 is inserted and the fixed unit 120 fixed to the outdoor unit case 14 in order to support the liquid piping 40. Thus, although vibration is transferred to the liquid piping 40, the vibration is absorbed or suppressed by the vibration preventing member 100 fixed to the outdoor unit case 14, thus reducing amplitude of the liquid piping 40.
  • Accordingly, even when the core assembly and the signal terminals are coupled to be positioned within the outdoor unit case 14, the core assembly and the signal terminals can be prevented from being in contact with neighboring outdoor unit components, thereby preventing the piping communication system from being shorted.
  • Meanwhile, in the present embodiment, the case in which the vibration preventing member is installed between the outdoor unit case and the liquid piping has been described, but the vibration preventing member may also be installed between the indoor unit case and the liquid piping, between the outdoor unit case and the gas piping, or between the indoor unit case and the gas piping. In these cases, the basic configuration and operational effect are similar to those of the foregoing embodiment.

Claims (10)

  1. A piping communication system comprising:
    a refrigerant piping connecting an outdoor heat exchanger and an indoor heat exchanger through an outdoor unit case and an indoor unit case;
    a signal transmission unit electrically connected to the refrigerant piping to transfer a signal transmitted or received through the refrigerant piping to a microcomputer; and
    a vibration preventing member installed between the outdoor unit case or the indoor unit case and the refrigerant piping to support the refrigerant piping with respect to the outdoor unit case or the indoor unit case.
  2. The piping communication system of claim 1, wherein the vibration preventing member comprises:
    a support unit allowing the piping to be inserted therethrough and supported; and
    a fixed unit formed to extend from an outer circumferential surface of the support unit and fixed to the outdoor unit case or the indoor unit case.
  3. The piping communication system of claim 2, wherein at least one side of the support unit is protruded than one side of the fixed unit and inserted into a piping hole provided in the outdoor unit case or the indoor unit case.
  4. The piping communication system of any one of claim 1 to claim 3, wherein one side of the support unit is cut out so as to be opened to both sides to allow the piping to be inserted therethrough.
  5. The piping communication system of any one of claim 1 to claim 3, wherein one half and another half of the support unit are paired to be coupled to face the piping.
  6. The piping communication system of claim 2, wherein the fixed unit is screw-fastened to the outdoor unit case or the indoor unit case.
  7. The piping communication system of claim 2, wherein the fixed unit is hook-coupled to the outdoor unit case or the indoor unit case.
  8. The piping communication system of claim 6 or 7, wherein one or more fixed units are formed to be protruded radially from a portion of the support unit in a circumferential direction.
  9. The piping communication system of claim 6 or 7, wherein the fixed unit is formed and coupled in an annular manner along the circumferential direction of the support unit.
  10. The piping communication system of claim 1, wherein the vibration preventing member is made of a material having elastic modulus greater than that of the outdoor unit case or the indoor unit case.
EP12736455.2A 2011-01-21 2012-01-13 Piping communication system Not-in-force EP2665976B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020110006551A KR101257095B1 (en) 2011-01-21 2011-01-21 Piping cummunition system
PCT/KR2012/000333 WO2012099362A2 (en) 2011-01-21 2012-01-13 Piping communication system

Publications (3)

Publication Number Publication Date
EP2665976A2 true EP2665976A2 (en) 2013-11-27
EP2665976A4 EP2665976A4 (en) 2018-01-03
EP2665976B1 EP2665976B1 (en) 2019-01-02

Family

ID=46516207

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12736455.2A Not-in-force EP2665976B1 (en) 2011-01-21 2012-01-13 Piping communication system

Country Status (4)

Country Link
US (1) US20130333856A1 (en)
EP (1) EP2665976B1 (en)
KR (1) KR101257095B1 (en)
WO (1) WO2012099362A2 (en)

Families Citing this family (3)

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KR20130090250A (en) * 2012-02-03 2013-08-13 삼성전자주식회사 Outdoor unit and air conditioner having the same
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EP2665976A4 (en) 2018-01-03
US20130333856A1 (en) 2013-12-19
WO2012099362A2 (en) 2012-07-26
KR20120085123A (en) 2012-07-31
EP2665976B1 (en) 2019-01-02
KR101257095B1 (en) 2013-04-19
WO2012099362A3 (en) 2012-11-22

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