EP2366957A2 - Core assembly for air conditioner and air conditioner having the same - Google Patents
Core assembly for air conditioner and air conditioner having the same Download PDFInfo
- Publication number
- EP2366957A2 EP2366957A2 EP11157057A EP11157057A EP2366957A2 EP 2366957 A2 EP2366957 A2 EP 2366957A2 EP 11157057 A EP11157057 A EP 11157057A EP 11157057 A EP11157057 A EP 11157057A EP 2366957 A2 EP2366957 A2 EP 2366957A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- core
- pipe
- air conditioner
- connection portion
- connection
- 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
Links
- 239000003507 refrigerant Substances 0.000 claims abstract description 47
- 238000004891 communication Methods 0.000 claims abstract description 13
- 238000003466 welding Methods 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000004308 accommodation Effects 0.000 description 11
- 239000007788 liquid Substances 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 238000000638 solvent extraction Methods 0.000 description 4
- 230000002708 enhancing effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000012778 molding material Substances 0.000 description 2
- 230000009897 systematic effect Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
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- 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
- F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
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- 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
- F24F1/26—Refrigerant piping
- F24F1/34—Protection means thereof, e.g. covers for refrigerant pipes
Definitions
- the present invention relates to an air conditioner capable of transmitting a signal by using pipes between an indoor unit and an outdoor unit, and particularly, to a core assembly capable of implementing an impedance with respect to an electric signal and an air conditioner having the same.
- an air conditioner is classified into an indoor unit and an outdoor unit, and the indoor unit and the outdoor unit are electrically connected to each other so that an electric signal can be transmitted therebetween.
- the indoor unit and the outdoor unit are electrically connected to each other so that an electric signal can be transmitted therebetween.
- an electric insulation device is provided at a gas side refrigerant pipe (hereinafter, will be referred to as 'gas pipe') and a liquid side refrigerant pipe (hereinafter, will be referred to as 'liquid pipe') of each of an indoor unit side and an outdoor unit side.
- a control board is connected to the gas pipe and the liquid pipe of the indoor unit, and a control board is connected to the gas pipe and the liquid pipe of the outdoor unit.
- the gas pipe and the liquid pipe are used as communication means for transmitting control signals between the indoor units and the outdoor unit.
- the refrigerant pipe is provided with a core assembly implementing an impedance with respect to an alternating current electric signal.
- the core assembly is implemented such that a pair of cores having a hemispherical sectional surface are accommodate in a core holder, and are coupled to the core holder so as to encompass the refrigerant pipe.
- Signal terminals for electrically connecting the refrigerant pipe and the respective control boards are coupled to the core holder so as to contact the refrigerant pipe.
- the signal terminal consists of a contact metallic portion having an inner circumferential surface of one side end contacting the pipe, and a signal transmitting connection portion connected to a signal line by being integrally extending from the contact metallic portion.
- the conventional air conditioner may have the following problems.
- the core assembly is installed at the refrigerant pipe so as to have an impedance when transmitting and receiving an electric signal through the refrigerant pipe.
- the core is preferably formed to have a consecutive shape in a circumferential direction, i.e., a cylindrical shape.
- the core assembly is later coupled to the refrigerant pipe in a fitting manner in a state that the outdoor unit and the indoor unit are connected to each other by the refrigerant pipe, the core is formed to have a hemispheric shape. This may reduce an impedance of the core assembly.
- an object of the present invention is to provide a core assembly for an air conditioner capable of enhancing an impedance by forming a core of the core assembly in a cylindrical shape, and an air conditioner having the same.
- Another object of the present invention is to provide a core assembly for an air conditioner capable of enhancing a communication performance by preventing changes of an impedance by allowing a position of a core not to be changed even if a refrigerant pipe vibrates, and an air conditioner having the same.
- a core assembly for an air conditioner comprising: a connection pipe for connecting to a refrigerant pipe that passes refrigerant between an outdoor unit and an indoor unit of an air conditioner; a core encompassing an outer circumferential surface of the connection pipe, wherein the core is configured to implement an impedance with respect to an electric signal transmitted through the refrigerant pipe; and a core holder configured to accommodate the core therein, wherein the core holder is integrally coupled to the connection pipe.
- a core assembly for an air conditioner comprising: a connection pipe connected to an intermediate part of a pipe which connects an outdoor unit and an indoor unit with each other; and a core disposed to encompass an outer circumferential surface of the connection pipe, and implementing an impedance with respect to an electric signal transmitted and received through the pipe, wherein the core is formed to have a ring shape.
- an air conditioner comprising: an outdoor unit having an outdoor unit side heat exchanger; an indoor unit having an indoor unit side heat exchanger; a pipe configured to connect the outdoor unit side heat exchanger and the indoor unit side heat exchanger to each other; and a core assembly implementing an impedance with respect to an electric signal transmitted and received through the pipe, wherein a first connection portion to which the outdoor unit side heat exchanger or the indoor unit side heat exchanger is connected is provided at the outdoor unit or the indoor unit, a second connection portion connected to the first connection portion is provided at the core assembly, and a fourth connection portion is provided at the pipe so as to be connected to a third connection portion disposed at an opposite side to the second connection portion.
- FIG. 1 is a systematic view of an air conditioner having a signal transmission device according to the present invention.
- the air conditioner according to the present invention largely comprises an outdoor unit 10 and an indoor unit 20.
- the outdoor unit 10 and the indoor unit 20 are arranged in a state that an external wall of a building is disposed therebetween, and are connected to each other through a gas pipe 30 and a liquid pipe 40.
- the outdoor unit 10 includes an outdoor unit side heat exchanger 11, an outdoor unit controller 12, and an outdoor unit signal coupler 13.
- the outdoor unit controller 12 exchanges a control signal with the outdoor unit side heat exchanger 11 by using an alternating current as a medium. And, the alternating current control signal outputted from the outdoor unit controller 12 is transmitted to the indoor unit 20 via the outdoor unit signal coupler 13, through one of the gas pipe 30 and the liquid pipe 40, or through both of the two pipes 30 and 40.
- the indoor unit 20 includes an indoor unit side heat exchanger 21, an indoor unit controller 22, and an indoor unit signal coupler 23.
- the indoor unit controller 22 exchanges a control signal with the indoor unit side heat exchanger 21 by using an alternating current as a medium. And, the alternating current control signal outputted from the indoor unit controller 22 is transmitted to the outdoor unit 10 via the indoor unit signal coupler 23, through one of the gas pipe 30 and the liquid pipe 40, or through both of the two pipes 30 and 40.
- the outdoor unit signal coupler 13 and the indoor unit signal coupler 23 have cores formed of a magnetic material and having an inductance corresponding to a winding number of 1, and are coupled to the gas pipe 30 and the liquid pipe 40 so as to encompass them, respectively.
- the outdoor unit side heat exchanger 11 has a transmission line implementing an impedance of 2*Z.
- the alternating current is decreased according to a distance due to a transmission line impedance (Zo) of the pipes.
- the transmission line impedance (Zo) is proportional to a distance, and an alternating current signal used to detect lengths of the refrigerant pipes 30 and 40 has a strength decreased by the transmission line impedance (Zo) and the signal couplers 13 and 23. That is, based on the impedance of the signal couplers 13 and 23 and the strength of the alternating current signal of the transmission/reception terminals, distance information may be calculated.
- the refrigerant pipes may be used as a transmission line for a distance detecting signal. This may allow a pipe length between the indoor unit and the outdoor unit used to calculate a refrigerant amount to be automatically calculated.
- the outdoor unit signal coupler 13 includes a core assembly 100 implementing an impedance.
- the core assembly 100 is implemented as a modularized connection pipe so as to be screw-coupled or welded to the refrigerant pipe 40 disposed between the outdoor unit side heat exchanger provided at the outdoor unit 10 and the indoor unit side heat exchanger provided at the indoor unit 20.
- a connection portion to be connected to a connection pipe 110 of the core assembly 100 which will be later explained has to be formed at a position where the core assembly 100 is to be coupled, i.e., near the outdoor unit 10 or the indoor unit 20 (near the indoor unit 20 in the preferred embodiment).
- connection portion consists of a first connection portion 25 and a fourth connection portion 41.
- the first connection portion 25 is formed at the end of the indoor unit side heat exchanger exposed to one side of an indoor unit case, and is connected to a second connection portion 111 of the connection pipe 110 to be later explained.
- the fourth connection portion 41 is formed at the end of the refrigerant pipe 40 to be connected to the indoor unit side heat exchanger, and is connected to a third connection portion 112 of the connection pipe 110 to be later explained in a state that the connection pipe 110 of the core assembly 100 is disposed therebetween.
- Both of the first connection portion 25 and the fourth connection portion 41 may be implemented as flare nuts or flare bolts for screw-coupling, or may be provided with a flange for coupling in a welding manner.
- one of the first connection portion 25 and the fourth connection portion 41 may be formed so as to be screw-coupled, and another thereof may be formed so as to be coupled in a welding manner.
- the first connection portion 25 and the fourth connection portion 41 may be implemented as any means to be hermetically connected to the second connection portion 111 and the third connection portion 112, respectively.
- the core assembly 100 comprises a connection pipe 110 connected to the refrigerant pipe 40, a core 120 formed to encompass the connection pipe 110 and having magnetism, and a core holder 130 having the core 120 accommodated therein and integrally coupled to the connection pipe 110 so that the core 120 can be fixed in a state to encompass the connection pipe 110.
- connection pipe 110 is formed of the same material and formed to have the same size as the refrigerant pipe 40. At one end of the connection pipe 110, formed is the second connection portion 111 connected to the first connection portion 25 of the indoor unit 20. At another end of the connection pipe 110, formed is the third connection portion 112 connected to the fourth connection portion 41 of the refrigerant pipe 40.
- the second connection portion 111 and the third connection portion 112 may be formed to have shapes for coupling to the first connection portion 25 and the fourth connection portion 41, respectively. Namely, the second connection portion 111 and the third connection portion 112 may be formed to have shapes of press nuts or press bolts, or flanges for welding.
- the core 120 is formed to have a ring shape so as to be inserted into the connection pipe 110.
- the core 120 may be formed to have an inner diameter approximately equal to or a little larger than an outer diameter of the connection pipe 110. If the inner diameter of the core 120 is larger than the outer diameter of the connection pipe 110, molding liquid may be introduced between the connection pipe 110 and the core 120 thus to be hardened when molding the core holder 130.
- the core 120 may be arranged in plurality in number in a lengthwise direction of the connection pipe 110.
- the core 120 may be implemented as partial core pieces divided from each other into two based on a central axial line and assembled to each other as a cylindrical shape having a predetermined length.
- the core having an arc shape may have an impedance reduced by 30 ⁇ 40% than that of a core having a ring shape. Accordingly, it is not preferable to form the core in an arc shape.
- the core holder 130 may be formed of an insulating material such as plastic or rubber.
- the material of the core holder 130 may become different according to a coupling method of the connection pipe 110.
- the core holder 130 may be formed of either plastic or rubber.
- the core holder 130 may be formed of plastic having large resistance against heat, rather than rubber having small resistance against heat, since the core holder 130 may be melted by heat generated during the welding.
- the core holder 130 may be formed in a molding manner by injecting a molding material on an outer circumferential surface of the core 120.
- the molding material of the core holder 130 may be disposed between the connection pipe 110 and the core 120, thereby more stably fixing the core 120.
- Signal terminals 141 and 142 configured to transmit and receive signals transmitted through the refrigerant pipe 40 by contacting the connection pipe 110 may be coupled to both sides of the connection pipe 110, i.e., outside the core holder 130.
- the signal terminals 141 and 142 may be implemented as any means to be assembled to the connection pipe 110, for example, clips.
- Terminal portions may be extending from both ends of the core holder 130, and the signal terminals 141 and 142 may be provided on inner circumferential surfaces of the terminal portions.
- Connectors having the signal terminals may be provided on outer circumferential surfaces of the terminal portions.
- the connectors having signal lines may be simply connected to the core assembly after connecting the core assembly to the pipe.
- the core assembly for an air conditioner according to the present invention may have the following effects.
- the core 120 having been inserted into the connection pipe 110 is put into a metallic cavity (not shown), and a melting material formed of plastic or rubber is injected into the metallic cavity. While being introduced into the metallic cavity, the melting material encompasses the core 120 thus to be adhered to the connection pipe 110.
- the melting material is hardened to form the core holder 130 which encompasses the core 120, and the core holder 130 is integrally coupled to the connection pipe 110. Accordingly, the core holder 130 supports the core 120, and the core 120 is integrally coupled to the connection pipe 110.
- connection portion 111 and the third connection portion 112 are formed according to connection types to the first connection portion 25 and the fourth connection portion 41, respectively.
- the core assembly 100 Before connecting the refrigerant pipe 40 connected to the outdoor unit side heat exchanger to the indoor unit side heat exchanger, the core assembly 100 is connected between the refrigerant pipe 40 and the indoor unit side heat exchanger.
- the second connection portion 111 of the core assembly 100 is connected to the first connection portion 25 provided at an outer periphery of the indoor unit case, and the third connection portion 112 of the core assembly 100 is connected to the fourth connection portion 41 provided at the end of the refrigerant pipe 40.
- Signal lines or connectors are connected to the signal terminals 141 and 142 so that an electric signal transmitted through the refrigerant pipe 40 can be transmitted to a control board.
- An impedance with respect to the electric signal transmitted through the refrigerant pipe 40 is implemented by the core 120, thereby enhancing a communication performance.
- an impedance is more enhanced by approximately 30 ⁇ 40% than the case that the core is formed in an arc shape. This may enhance a communication performance through the refrigerant pipe.
- the refrigerant pipe is prevented from vibrating or moving by installation circumstances. This may enhance a communication performance much more.
- an additional melting material is injected into an outer circumferential surface of the core, thereby forming the core holder which encompasses the core.
- the core holder is not additionally formed, but the core is integrally formed at the connection pipe.
- the core assembly 200 comprises a connection pipe 210, and a core 220 formed on an outer circumferential surface of the connection pipe 210 by a powder metallurgical method.
- the core 220 may be formed of a powder type-soft magnetic substance.
- the core 220 is formed in a ring shape for enhanced impedance.
- the core 220 may be formed in an arc shape.
- connection portions 211 and 212 denote connection portions
- 241 and 242 denote signal terminals.
- the core assembly according to another embodiment of the present invention will be explained in more detail as follows.
- each core holder is formed by using a metallic cavity, or the core is coupled to the connection pipe by removing the core holder.
- the core is coupled to the connection pipe by removing the core holder.
- one pair of hemicyclic holder pieces are coupled to each other to form a cylindrical shape.
- the core assembly 100 comprises a connection pipe 110, a core 120 encompassing the connection pipe and formed of magnetic material, a core holder 130 accommodating the core 120 therein and allowing the core 120 to encompass the connection pipe 110, a first signal terminal 141 and a second signal terminal 142 provided on two inner circumferential surfaces of the core holder 130 and configured to transmit a signal transmitted through the connection pipe (refrigerant pipe) 110 to the outdoor unit controller 12, and a connector 150 configured to electrically connect the first signal terminal 141 and the second signal terminal 142 to a pipe communication control board.
- the core 120 consists of a plurality of partial cores 121, 122, 123 and 124 divided from each other based on a central axial line in a lengthwise direction (divided into two in the drawings), and assembled to each other in a cylindrical shape having a predetermined length.
- the partial cores 121,122, 123 and 124 are consecutively arranged in a lengthwise direction as a plurality of pairs of partial cores, processes are more facilitated than the case that the partial cores are long formed as one pair of partial cores. This may reduce the fabrication costs. However, implementing a plurality of pairs of partial cores may have impedance effects lower than those when implementing one pair of partial cores.
- the core 120 is formed to have an inner diameter larger than an outer diameter of the connection pipe 110, so as to be universally applied to the connection pipe 110 having various sizes.
- the core holder 130 consists of partial holders 131 and 132 divided from each other into two based on a central axial line in a lengthwise direction, and assembled to each other in a cylindrical shape having a length long enough to accommodate the core 120 therein.
- hinge recesses 1311 and hinge protrusions 1321 are formed so that the partial holders 131 and 132 can be rotatably coupled thereto.
- a plurality of detachable recesses 1312 and detachable protrusions 1322 are formed so that the partial holders 131 and 132 can be detachably coupled thereto.
- the partial holders 131 and 132 are provided therein with hemicyclic accommodation spaces 1313, 1314 and 1323, 1324, respectively.
- the accommodation spaces 1313,1314 and 1323,1324 may be implemented as a single space, respectively.
- the accommodation spaces 1313,1314 and 1323,1324 may be implemented as a plurality of spaces divided from each other in a lengthwise direction according to the shapes of the partial holders 131 and 132.
- at least one partitioning protrusion 315 and 1325 may be formed between the accommodation spaces 1313 and 1314, and between the accommodation spaces 1323 and 1324 of the partial holders 131 and 132 in a lengthwise direction.
- the partitioning protrusions 1315 and 1325 may be formed to have a height high enough to be interposed between the partial cores 121 and 123, and between the partial cores 122 and 124, respectively, so as to divide the partial cores 121 and 123 from each other, and so as to divide the partial cores 122 and 124 from each other. That is, the partitioning protrusions 1315 and 1325 may be formed to have the same shape and size as edges of both sides of the partial holders 131 and 132.
- the partitioning protrusions 1315 and 1325 may be formed to have a height high enough for corresponding surfaces of the partial cores 121, 123 and 122, 124 to partially contact, i.e., a height less than a thickness of the partial cores 121, 123 and 122, 124.
- locking protrusions 1316 and 1326 configured to prevent the partial cores 121,122, 123 and 124 from sliding in a circumferential direction during an assembly process are formed at both sides of the respective accommodation spaces 1313,1314 and 1323,1324.
- the locking protrusions 1316 and 1326 may be evenly formed in a circumferential direction of the partial holders 131 and 132. However, in order to prevent separation of the partial cores 121,122, 123 and 124, the locking protrusions 1316 and 1326 are preferably formed at an opposite side based on an insertion direction of the partial cores 121,122, 123 and 124, i.e., at a lower side when assembling the two partial holders 131 and 132.
- the locking protrusions 1316 and 1326 are preferably formed towards a hinge side where the partial holders 131 and 132 are rotatably coupled to each other, because the partial cores 121,122, 123 and 124 are inserted from the sides of the detachable recess 1312 and the detachable protrusion 1322 which are later assembled when assembling the partial holders 131 and 132.
- Stepped portions 1211, 1221, 1231 and 1241 configured to lock the locking protrusions 1316 and 1326 may be formed at edges of the partial cores 121,122, 123 and 124.
- a first terminal recess 1317 and a second terminal recess 1318 having a predetermined depth so as to fix the first signal terminal 141 and the second signal terminal 142, respectively may be formed at both ends of the partial holders 131 and 132.
- a first terminal pin 1417 and a second terminal pin 1427 configured to electrically connect the signal terminals 141 and 142 to the connector 150 respectively are connected to the first signal terminal 141 and the second signal terminal 142.
- the first terminal pin 1417 and the second terminal pin 1427 may be provided at the first terminal recess 1317 and a second terminal recess 1318, respectively. However, as shown in FIGS.
- the first terminal pin 1417 and the second terminal pin 1427 may be buried at one terminal recess (the second terminal recess 1318 in the drawings) of the two terminal recesses 1317 and 1318, and a conductive wire 143 may be withdrawn from the other terminal recess (the first terminal recess 1317 in the drawings) thus to be connected to the first terminal pin 1417.
- a conductive wire recess (not shown) configured to bury the conductive wire 143 may be preferably formed at the first partial holder 131 along an edge surface of the first partial holder 131.
- a protrusion 1319 configured to prevent shortening between the first terminal pin 1417 and the second terminal pin 1427 may be preferably formed at the second terminal recess 1318.
- the first terminal pin 1417 and the second terminal pin 1427 are formed in a cylindrical shape for inserting connection pins 1521 and 1522 of the connector 150 to be later explained, and are coupled to the second terminal recess 1318 of the core holder 130 in a penetrating manner from an inner circumferential surface to an outer circumferential surface of the second terminal recess 1318.
- the connector 150 includes a connector body 151 formed at the end of a signal line of the controller, and a plurality of connection pins 1521 and 1522 formed of a conductive material, and having a predetermined length long enough to be protruding from the connector body 151 thus to be inserted into the first terminal pin 1417 and the second terminal pin 1427.
- the plurality of connection pins 1521 and 1522 consist of a signal side connection pin 1521 and a ground side connection pin 1522.
- the core assembly for an air conditioner, and the air conditioner having the same according to the present invention have the following advantages.
- the cores 121,122, 123 and 124 are inserted into the accommodation spaces 1313, 1314, 1323 and 1324 of the partial holders 131 and 132.
- the cores 121,122, 123 and 124 are inserted into one opened ends of the partial holders 131 and 132, i.e., the hinge protrusions or the hinge recesses, from the detachable protrusions or the detachable recesses, thereby being inserted into the accommodation spaces 1313,1314, 1323 and 1324 by sliding toward a circumferential direction.
- the cores 121,122, 123 and 124 are slid to two side surfaces of the accommodation spaces 1313,1314, 1323 and 1324 of the core holders 131 and 132, the ends of the cores 121,122, 123 and 124 are locked by the locking protrusions 1316 and 1326 provided at inner ends of the accommodation spaces 1313,1314, 1323 and 1324. Accordingly, the insertion of the cores 121,122, 123 and 124 to the accommodation spaces 1313,1314, 1323 and 1324 is completed.
- the core holders 131 and 132 of the core assembly 100 are widened to two sides, and the core assembly 100 is inserted into the refrigerant pipe 40. Then, the detachable protrusion 1322 is fitted into the detachable recess 1312 of the core holder 130, thereby fixing the core holder 130 to the connection pipe 110.
- signal lines are connected to the first signal terminal 141 and the second signal terminal 142 provided at the core holder 130 or the connection pipe 110, so that electric signals transmitted through the connection pipe 110 can be transmitted to the outdoor unit controller 12.
- the first terminal pin 1417 and the second terminal pin 1427 are buried at the second terminal recess 1318 of the core holder 130 for inserting the second signal terminal 142, in a penetrating manner toward a radius direction. Accordingly, the connection pins 1521 and 1522 of the connector 150 provided at the ends of the signal line are inserted into the first terminal pin 1417 and the second terminal pin 1427, thereby connecting the signal line to the signal terminals.
- the core assembly according to this preferred embodiment has similar effects to those of the core assembly according to the aforementioned embodiment.
- the connector since the connector is provided at the core holder or the signal line, detachable mounting of the connector to the signal line may be facilitated. This may simplify the assembly processes and maintenance procedures, thereby reducing the costs.
- the core holder is provided with a plurality of terminal pins at one end thereof.
- a first terminal pin 2417 and a second terminal pin 2427 individually contacting the first signal terminal 241 and the second signal terminal 242 are provided at both ends of the core holder 231.
- the first terminal pin 2417 and the second terminal pin 2427 are individually connected to a first connector 251 and a second connector 252.
- the shapes of the terminal pins 2417 and 2427, or the connectors 251 and 252 are same as those of the aforementioned embodiment, and thus their detailed explanations will be omitted.
- the core assembly according to this preferred embodiment has the same effects as the core assembly according to the aforementioned embodiment.
- a first terminal pin 3417 and a second terminal pin 3427 may be formed at an intermediate part of a core holder 331, such that a first signal terminal 341 and a second signal terminal 342 provided at both ends of the core holder 331 are electrically connected to the first terminal pin 3417 and the second terminal pin 3427 through a conductive wire 343 buried at a conductive wire recess.
- one connector 340 may be formed to integrate a plurality of signal lines with each other.
- the first terminal pin and the second terminal pin are provided at the core holder.
- the signal line may be directly connected to the terminal pins without an additional connector.
- the signal transmission device for an air conditioner according to the present invention may be variously applied to a multi-type air conditioner having a refrigerant pipe buried at a building.
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- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
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Abstract
Description
- The present invention relates to an air conditioner capable of transmitting a signal by using pipes between an indoor unit and an outdoor unit, and particularly, to a core assembly capable of implementing an impedance with respect to an electric signal and an air conditioner having the same.
- Generally, an air conditioner is classified into an indoor unit and an outdoor unit, and the indoor unit and the outdoor unit are electrically connected to each other so that an electric signal can be transmitted therebetween. However, in a case that a plurality of indoor units are connected to one outdoor unit in parallel, or in a case that a refrigerant pipe is installed in a wall of a building and a plurality of indoor units are connected to the refrigerant pipe in parallel, it is difficult to electrically connect the indoor units to the outdoor units having a smaller number than the indoor units.
- To solve this problem, has been proposed a technique for transmitting and receiving an electric signal by using a refrigerant pipe which connects a plurality of indoor units to outdoor units having a smaller number than the indoor units. For instance, an electric insulation device is provided at a gas side refrigerant pipe (hereinafter, will be referred to as 'gas pipe') and a liquid side refrigerant pipe (hereinafter, will be referred to as 'liquid pipe') of each of an indoor unit side and an outdoor unit side. A control board is connected to the gas pipe and the liquid pipe of the indoor unit, and a control board is connected to the gas pipe and the liquid pipe of the outdoor unit. The gas pipe and the liquid pipe are used as communication means for transmitting control signals between the indoor units and the outdoor unit.
- In order to enhance a communication function, the refrigerant pipe is provided with a core assembly implementing an impedance with respect to an alternating current electric signal. The core assembly is implemented such that a pair of cores having a hemispherical sectional surface are accommodate in a core holder, and are coupled to the core holder so as to encompass the refrigerant pipe. Signal terminals for electrically connecting the refrigerant pipe and the respective control boards are coupled to the core holder so as to contact the refrigerant pipe.
- The signal terminal consists of a contact metallic portion having an inner circumferential surface of one side end contacting the pipe, and a signal transmitting connection portion connected to a signal line by being integrally extending from the contact metallic portion.
- However, the conventional air conditioner may have the following problems.
- Firstly, the core assembly is installed at the refrigerant pipe so as to have an impedance when transmitting and receiving an electric signal through the refrigerant pipe. In order to enhance an impedance of the core assembly, the core is preferably formed to have a consecutive shape in a circumferential direction, i.e., a cylindrical shape. However, since the core assembly is later coupled to the refrigerant pipe in a fitting manner in a state that the outdoor unit and the indoor unit are connected to each other by the refrigerant pipe, the core is formed to have a hemispheric shape. This may reduce an impedance of the core assembly.
- Secondly, since the core of the core assembly is separated from the core assembly little by little due to vibration of the refrigerant pipe, an impedance may be changed. This may cause lowering of a communication performance.
- Therefore, an object of the present invention is to provide a core assembly for an air conditioner capable of enhancing an impedance by forming a core of the core assembly in a cylindrical shape, and an air conditioner having the same.
- Another object of the present invention is to provide a core assembly for an air conditioner capable of enhancing a communication performance by preventing changes of an impedance by allowing a position of a core not to be changed even if a refrigerant pipe vibrates, and an air conditioner having the same.
- To achieve these and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described herein, there is provided a core assembly for an air conditioner, comprising: a connection pipe for connecting to a refrigerant pipe that passes refrigerant between an outdoor unit and an indoor unit of an air conditioner; a core encompassing an outer circumferential surface of the connection pipe, wherein the core is configured to implement an impedance with respect to an electric signal transmitted through the refrigerant pipe; and a core holder configured to accommodate the core therein, wherein the core holder is integrally coupled to the connection pipe.
- According to another aspect of the present invention, there is provided a core assembly for an air conditioner, comprising: a connection pipe connected to an intermediate part of a pipe which connects an outdoor unit and an indoor unit with each other; and a core disposed to encompass an outer circumferential surface of the connection pipe, and implementing an impedance with respect to an electric signal transmitted and received through the pipe, wherein the core is formed to have a ring shape.
- To achieve these and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described herein, there is also provided an air conditioner, comprising: an outdoor unit having an outdoor unit side heat exchanger; an indoor unit having an indoor unit side heat exchanger; a pipe configured to connect the outdoor unit side heat exchanger and the indoor unit side heat exchanger to each other; and a core assembly implementing an impedance with respect to an electric signal transmitted and received through the pipe, wherein a first connection portion to which the outdoor unit side heat exchanger or the indoor unit side heat exchanger is connected is provided at the outdoor unit or the indoor unit, a second connection portion connected to the first connection portion is provided at the core assembly, and a fourth connection portion is provided at the pipe so as to be connected to a third connection portion disposed at an opposite side to the second connection portion.
- The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings.
- The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention.
- In the drawings:
-
FIG. 1 is a systematic view of an air conditioner having a signal transmission device according to the present invention; -
FIG. 2 is a perspective view showing a state that a core assembly has been separated from an outdoor unit in a signal coupler ofFIG. 1 ; -
FIG. 3 is a perspective view of the core assembly ofFIG. 2 ; -
FIG. 4 is a sectional view taken along line 'I-I' inFIG. 3 ; -
FIG. 5 is a sectional view of a core and a core holder of the core assembly ofFIG. 3 ; -
FIG. 6 is a perspective view of a core assembly according to another embodiment of the present invention; -
FIG. 7 is a perspective view of a core assembly according to still another embodiment of the present invention; -
FIG. 8 is a sectional view of a core of the core assembly ofFIG. 7 ; -
FIG. 9 is a disassembled perspective view of the core assembly ofFIG. 2 according to another embodiment of the present invention; -
FIG. 10 is a perspective view of a part of a core holder of the core assembly ofFIG. 9 ; -
FIG. 11 is a sectional view showing a state that a connector ofFIG. 10 has been coupled to the core holder; and -
FIGS. 12 and13 are perspective views showing positions of terminal pins of the core assembly ofFIG. 9 . - Description will now be given in detail of the present invention, with reference to the accompanying drawings.
- Hereinafter, a core assembly for an air conditioner, and an air conditioner having the same according to the present invention will be explained in more detail with reference to the attached drawings.
-
FIG. 1 is a systematic view of an air conditioner having a signal transmission device according to the present invention. - As shown, the air conditioner according to the present invention largely comprises an
outdoor unit 10 and anindoor unit 20. Theoutdoor unit 10 and theindoor unit 20 are arranged in a state that an external wall of a building is disposed therebetween, and are connected to each other through agas pipe 30 and aliquid pipe 40. - The
outdoor unit 10 includes an outdoor unitside heat exchanger 11, anoutdoor unit controller 12, and an outdoorunit signal coupler 13. Theoutdoor unit controller 12 exchanges a control signal with the outdoor unitside heat exchanger 11 by using an alternating current as a medium. And, the alternating current control signal outputted from theoutdoor unit controller 12 is transmitted to theindoor unit 20 via the outdoorunit signal coupler 13, through one of thegas pipe 30 and theliquid pipe 40, or through both of the twopipes - The
indoor unit 20 includes an indoor unitside heat exchanger 21, anindoor unit controller 22, and an indoorunit signal coupler 23. Theindoor unit controller 22 exchanges a control signal with the indoor unitside heat exchanger 21 by using an alternating current as a medium. And, the alternating current control signal outputted from theindoor unit controller 22 is transmitted to theoutdoor unit 10 via the indoorunit signal coupler 23, through one of thegas pipe 30 and theliquid pipe 40, or through both of the twopipes - The outdoor
unit signal coupler 13 and the indoorunit signal coupler 23 have cores formed of a magnetic material and having an inductance corresponding to a winding number of 1, and are coupled to thegas pipe 30 and theliquid pipe 40 so as to encompass them, respectively. - For instance, in case of a toroidal core having an inner radius (R1), an outer radius (R2), a height (h) and magnetic permeability (µ), an inductance (L) satisfies a following formula, L =(µh/2π)In(R2/R1), and an impedance (Z) with respect to an alternating current control signal of a frequency (f) satisfies a following formula, Z=j2πfL. Accordingly, with respect to the alternating current control signal transmitted by the
outdoor unit controller 12, the outdoor unitside heat exchanger 11 has a transmission line implementing an impedance of 2*Z. Once an alternating current signal flows to therefrigerant pipes outdoor unit 10 and theindoor unit 20, the alternating current is decreased according to a distance due to a transmission line impedance (Zo) of the pipes. The transmission line impedance (Zo) is proportional to a distance, and an alternating current signal used to detect lengths of therefrigerant pipes signal couplers signal couplers - Under the above configurations, the refrigerant pipes may be used as a transmission line for a distance detecting signal. This may allow a pipe length between the indoor unit and the outdoor unit used to calculate a refrigerant amount to be automatically calculated.
- Hereinafter, the outdoor unit signal coupler installed at the liquid pipe will be explained in more detail.
- As shown in
FIG. 2 , the outdoorunit signal coupler 13 includes acore assembly 100 implementing an impedance. Thecore assembly 100 is implemented as a modularized connection pipe so as to be screw-coupled or welded to therefrigerant pipe 40 disposed between the outdoor unit side heat exchanger provided at theoutdoor unit 10 and the indoor unit side heat exchanger provided at theindoor unit 20. To this, a connection portion to be connected to aconnection pipe 110 of thecore assembly 100 which will be later explained has to be formed at a position where thecore assembly 100 is to be coupled, i.e., near theoutdoor unit 10 or the indoor unit 20 (near theindoor unit 20 in the preferred embodiment). - The connection portion consists of a
first connection portion 25 and afourth connection portion 41. Thefirst connection portion 25 is formed at the end of the indoor unit side heat exchanger exposed to one side of an indoor unit case, and is connected to asecond connection portion 111 of theconnection pipe 110 to be later explained. Thefourth connection portion 41 is formed at the end of therefrigerant pipe 40 to be connected to the indoor unit side heat exchanger, and is connected to athird connection portion 112 of theconnection pipe 110 to be later explained in a state that theconnection pipe 110 of thecore assembly 100 is disposed therebetween. - Both of the
first connection portion 25 and thefourth connection portion 41 may be implemented as flare nuts or flare bolts for screw-coupling, or may be provided with a flange for coupling in a welding manner. Here, one of thefirst connection portion 25 and thefourth connection portion 41 may be formed so as to be screw-coupled, and another thereof may be formed so as to be coupled in a welding manner. Alternatively, thefirst connection portion 25 and thefourth connection portion 41 may be implemented as any means to be hermetically connected to thesecond connection portion 111 and thethird connection portion 112, respectively. - As shown in
FIGS. 2 to 5 , thecore assembly 100 comprises aconnection pipe 110 connected to therefrigerant pipe 40, acore 120 formed to encompass theconnection pipe 110 and having magnetism, and acore holder 130 having the core 120 accommodated therein and integrally coupled to theconnection pipe 110 so that thecore 120 can be fixed in a state to encompass theconnection pipe 110. - Preferably, the
connection pipe 110 is formed of the same material and formed to have the same size as therefrigerant pipe 40. At one end of theconnection pipe 110, formed is thesecond connection portion 111 connected to thefirst connection portion 25 of theindoor unit 20. At another end of theconnection pipe 110, formed is thethird connection portion 112 connected to thefourth connection portion 41 of therefrigerant pipe 40. - The
second connection portion 111 and thethird connection portion 112 may be formed to have shapes for coupling to thefirst connection portion 25 and thefourth connection portion 41, respectively. Namely, thesecond connection portion 111 and thethird connection portion 112 may be formed to have shapes of press nuts or press bolts, or flanges for welding. - The
core 120 is formed to have a ring shape so as to be inserted into theconnection pipe 110. Thecore 120 may be formed to have an inner diameter approximately equal to or a little larger than an outer diameter of theconnection pipe 110. If the inner diameter of thecore 120 is larger than the outer diameter of theconnection pipe 110, molding liquid may be introduced between theconnection pipe 110 and thecore 120 thus to be hardened when molding thecore holder 130. Thecore 120 may be arranged in plurality in number in a lengthwise direction of theconnection pipe 110. Alternatively, thecore 120 may be implemented as partial core pieces divided from each other into two based on a central axial line and assembled to each other as a cylindrical shape having a predetermined length. However, the core having an arc shape may have an impedance reduced by 30∼40% than that of a core having a ring shape. Accordingly, it is not preferable to form the core in an arc shape. - The
core holder 130 may be formed of an insulating material such as plastic or rubber. Here, the material of thecore holder 130 may become different according to a coupling method of theconnection pipe 110. For instance, as shown inFIG. 3 , when theconnection pipe 110 is screw-coupled to therefrigerant pipe 40, thecore holder 130 may be formed of either plastic or rubber. However, as shown inFIG. 6 , when theconnection pipe 110 is coupled to therefrigerant pipe 110 by welding, thecore holder 130 may be formed of plastic having large resistance against heat, rather than rubber having small resistance against heat, since thecore holder 130 may be melted by heat generated during the welding. - The
core holder 130 may be formed in a molding manner by injecting a molding material on an outer circumferential surface of thecore 120. In this case, the molding material of thecore holder 130 may be disposed between theconnection pipe 110 and thecore 120, thereby more stably fixing thecore 120. -
Signal terminals refrigerant pipe 40 by contacting theconnection pipe 110 may be coupled to both sides of theconnection pipe 110, i.e., outside thecore holder 130. Thesignal terminals connection pipe 110, for example, clips. - Terminal portions may be extending from both ends of the
core holder 130, and thesignal terminals - Connectors having the signal terminals may be provided on outer circumferential surfaces of the terminal portions. The connectors having signal lines may be simply connected to the core assembly after connecting the core assembly to the pipe.
- The core assembly for an air conditioner according to the present invention may have the following effects.
- The
core 120 having been inserted into theconnection pipe 110 is put into a metallic cavity (not shown), and a melting material formed of plastic or rubber is injected into the metallic cavity. While being introduced into the metallic cavity, the melting material encompasses the core 120 thus to be adhered to theconnection pipe 110. - As a predetermined time lapses, the melting material is hardened to form the
core holder 130 which encompasses thecore 120, and thecore holder 130 is integrally coupled to theconnection pipe 110. Accordingly, thecore holder 130 supports thecore 120, and thecore 120 is integrally coupled to theconnection pipe 110. - Then, the
core assembly 100 having thecore holder 130 is separated from the metallic cavity, thereby forming thesecond connection portion 111 and thethird connection portion 112 at both ends of the connection pipe, respectively. When thefirst connection portion 25 and thefourth connection portion 41 are implemented as flare bolts and flare nuts, flare nuts and flare bolts are coupled to both ends of theconnection pipe 110. Thesecond connection portion 111 and thethird connection portion 112 are formed according to connection types to thefirst connection portion 25 and thefourth connection portion 41, respectively. - Before connecting the
refrigerant pipe 40 connected to the outdoor unit side heat exchanger to the indoor unit side heat exchanger, thecore assembly 100 is connected between therefrigerant pipe 40 and the indoor unit side heat exchanger. - More concretely, the
second connection portion 111 of thecore assembly 100 is connected to thefirst connection portion 25 provided at an outer periphery of the indoor unit case, and thethird connection portion 112 of thecore assembly 100 is connected to thefourth connection portion 41 provided at the end of therefrigerant pipe 40. - Signal lines or connectors are connected to the
signal terminals refrigerant pipe 40 can be transmitted to a control board. An impedance with respect to the electric signal transmitted through therefrigerant pipe 40 is implemented by thecore 120, thereby enhancing a communication performance. - In the case that the core is formed in a ring shape, an impedance is more enhanced by approximately 30∼40% than the case that the core is formed in an arc shape. This may enhance a communication performance through the refrigerant pipe.
- Furthermore, as the core or the core holder is integrally formed at the connection pipe, the refrigerant pipe is prevented from vibrating or moving by installation circumstances. This may enhance a communication performance much more.
- Hereinafter, a core assembly for an air conditioner according to another embodiment of the present invention will be explained in more detail.
- In the aforementioned embodiment, an additional melting material is injected into an outer circumferential surface of the core, thereby forming the core holder which encompasses the core. However, in the preferred embodiment, the core holder is not additionally formed, but the core is integrally formed at the connection pipe.
- As shown in
FIGS. 7 and8 , thecore assembly 200 according to this preferred embodiment comprises aconnection pipe 210, and acore 220 formed on an outer circumferential surface of theconnection pipe 210 by a powder metallurgical method. - The
core 220 may be formed of a powder type-soft magnetic substance. Preferably, thecore 220 is formed in a ring shape for enhanced impedance. However, thecore 220 may be formed in an arc shape. - Other configurations and effects of the
core assembly 200 are similar to those of the aforementioned embodiment, and their detailed explanations will be omitted. In this preferred embodiment, since an additional core holder is not required, the entire fabrication processes are simplified to reduce the fabrication costs. Furthermore, since deformation of the connection pipe due to heat does not occur when connecting the connection pipe to the refrigerant pipe, various connection methods may be selected according to operation conditions.Unexplained reference numerals - The core assembly according to another embodiment of the present invention will be explained in more detail as follows.
- In the aforementioned core assembly, each core holder is formed by using a metallic cavity, or the core is coupled to the connection pipe by removing the core holder. However, in this preferred embodiment, as shown in
FIGS. 9 to 13 , one pair of hemicyclic holder pieces are coupled to each other to form a cylindrical shape. - As shown in
FIGS. 9 to 11 , thecore assembly 100 comprises aconnection pipe 110, acore 120 encompassing the connection pipe and formed of magnetic material, acore holder 130 accommodating the core 120 therein and allowing thecore 120 to encompass theconnection pipe 110, afirst signal terminal 141 and asecond signal terminal 142 provided on two inner circumferential surfaces of thecore holder 130 and configured to transmit a signal transmitted through the connection pipe (refrigerant pipe) 110 to theoutdoor unit controller 12, and aconnector 150 configured to electrically connect thefirst signal terminal 141 and thesecond signal terminal 142 to a pipe communication control board. - The
core 120 consists of a plurality ofpartial cores - In the case that the partial cores 121,122, 123 and 124 are consecutively arranged in a lengthwise direction as a plurality of pairs of partial cores, processes are more facilitated than the case that the partial cores are long formed as one pair of partial cores. This may reduce the fabrication costs. However, implementing a plurality of pairs of partial cores may have impedance effects lower than those when implementing one pair of partial cores.
- The
core 120 is formed to have an inner diameter larger than an outer diameter of theconnection pipe 110, so as to be universally applied to theconnection pipe 110 having various sizes. - Like the
core 120, thecore holder 130 consists ofpartial holders core 120 therein. At one side of the twopartial holders protrusions 1321 are formed so that thepartial holders partial holders detachable recesses 1312 anddetachable protrusions 1322 are formed so that thepartial holders - The
partial holders hemicyclic accommodation spaces accommodation spaces accommodation spaces partial holders FIG. 9 , at least onepartitioning protrusion 315 and 1325 may be formed between theaccommodation spaces accommodation spaces partial holders - The
partitioning protrusions partial cores partial cores partial cores partial cores partitioning protrusions partial holders partitioning protrusions partial cores partial cores - Preferably, locking
protrusions respective accommodation spaces - The locking
protrusions partial holders protrusions partial holders protrusions partial holders detachable recess 1312 and thedetachable protrusion 1322 which are later assembled when assembling thepartial holders portions protrusions - A
first terminal recess 1317 and asecond terminal recess 1318 having a predetermined depth so as to fix thefirst signal terminal 141 and thesecond signal terminal 142, respectively may be formed at both ends of thepartial holders - A
first terminal pin 1417 and asecond terminal pin 1427 configured to electrically connect thesignal terminals connector 150 respectively are connected to thefirst signal terminal 141 and thesecond signal terminal 142. Thefirst terminal pin 1417 and thesecond terminal pin 1427 may be provided at thefirst terminal recess 1317 and asecond terminal recess 1318, respectively. However, as shown inFIGS. 10 and11 , thefirst terminal pin 1417 and thesecond terminal pin 1427 may be buried at one terminal recess (thesecond terminal recess 1318 in the drawings) of the twoterminal recesses conductive wire 143 may be withdrawn from the other terminal recess (thefirst terminal recess 1317 in the drawings) thus to be connected to thefirst terminal pin 1417. In this case, a conductive wire recess (not shown) configured to bury theconductive wire 143 may be preferably formed at the firstpartial holder 131 along an edge surface of the firstpartial holder 131. And, aprotrusion 1319 configured to prevent shortening between thefirst terminal pin 1417 and thesecond terminal pin 1427 may be preferably formed at thesecond terminal recess 1318. - The
first terminal pin 1417 and thesecond terminal pin 1427 are formed in a cylindrical shape for insertingconnection pins connector 150 to be later explained, and are coupled to thesecond terminal recess 1318 of thecore holder 130 in a penetrating manner from an inner circumferential surface to an outer circumferential surface of thesecond terminal recess 1318. - The
connector 150 includes aconnector body 151 formed at the end of a signal line of the controller, and a plurality ofconnection pins connector body 151 thus to be inserted into thefirst terminal pin 1417 and thesecond terminal pin 1427. The plurality ofconnection pins side connection pin 1521 and a groundside connection pin 1522. - The core assembly for an air conditioner, and the air conditioner having the same according to the present invention have the following advantages.
- The cores 121,122, 123 and 124 are inserted into the
accommodation spaces partial holders partial holders accommodation spaces - While the cores 121,122, 123 and 124 are slid to two side surfaces of the
accommodation spaces core holders protrusions accommodation spaces accommodation spaces - Then, the
core holders core assembly 100 are widened to two sides, and thecore assembly 100 is inserted into therefrigerant pipe 40. Then, thedetachable protrusion 1322 is fitted into thedetachable recess 1312 of thecore holder 130, thereby fixing thecore holder 130 to theconnection pipe 110. - Under these configurations, signal lines are connected to the
first signal terminal 141 and thesecond signal terminal 142 provided at thecore holder 130 or theconnection pipe 110, so that electric signals transmitted through theconnection pipe 110 can be transmitted to theoutdoor unit controller 12. - Here, the
first terminal pin 1417 and thesecond terminal pin 1427 are buried at thesecond terminal recess 1318 of thecore holder 130 for inserting thesecond signal terminal 142, in a penetrating manner toward a radius direction. Accordingly, the connection pins 1521 and 1522 of theconnector 150 provided at the ends of the signal line are inserted into thefirst terminal pin 1417 and thesecond terminal pin 1427, thereby connecting the signal line to the signal terminals. - The core assembly according to this preferred embodiment has similar effects to those of the core assembly according to the aforementioned embodiment. In this preferred embodiment, since the connector is provided at the core holder or the signal line, detachable mounting of the connector to the signal line may be facilitated. This may simplify the assembly processes and maintenance procedures, thereby reducing the costs.
- The core holder for an air conditioner according to the another embodiment of the present invention will be explained as follows.
- In the aforementioned embodiment, the core holder is provided with a plurality of terminal pins at one end thereof. However, in this preferred embodiment, as shown in
FIG. 12 , afirst terminal pin 2417 and asecond terminal pin 2427 individually contacting thefirst signal terminal 241 and thesecond signal terminal 242 are provided at both ends of thecore holder 231. And, thefirst terminal pin 2417 and thesecond terminal pin 2427 are individually connected to afirst connector 251 and asecond connector 252. In this case, the shapes of theterminal pins connectors - Referring to
FIG. 13 , afirst terminal pin 3417 and asecond terminal pin 3427 may be formed at an intermediate part of acore holder 331, such that afirst signal terminal 341 and asecond signal terminal 342 provided at both ends of thecore holder 331 are electrically connected to thefirst terminal pin 3417 and thesecond terminal pin 3427 through aconductive wire 343 buried at a conductive wire recess. In this case, one connector 340 may be formed to integrate a plurality of signal lines with each other. - Although not shown, the first terminal pin and the second terminal pin are provided at the core holder. Here, the signal line may be directly connected to the terminal pins without an additional connector.
- The signal transmission device for an air conditioner according to the present invention may be variously applied to a multi-type air conditioner having a refrigerant pipe buried at a building.
- The foregoing embodiments and advantages are merely exemplary and are not to be construed as limiting the present disclosure. The present teachings can be readily applied to other types of apparatuses. This description is intended to be illustrative, and not to limit the scope of the claims. Many alternatives, modifications, and variations will be apparent to those skilled in the art. The features, structures, methods, and other characteristics of the exemplary embodiments described herein may be combined in various ways to obtain additional and/or alternative exemplary embodiments.
- As the present features may be embodied in several forms without departing from the characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, unless otherwise specified, but rather should be construed broadly within its scope as defined in the appended claims, and therefore all changes and modifications that fall within the metes and bounds of the claims, or equivalents of such metes and bounds are therefore intended to be embraced by the appended claims.
Claims (14)
- A core assembly for an air conditioner, comprising:a connection pipe for connecting to a refrigerant pipe that passes refrigerant between an outdoor unit and an indoor unit of an air conditioner;a core encompassing an outer circumferential surface of the connection pipe, wherein the core is configured to implement an impedance with respect to an electric signal transmitted through the refrigerant pipe; anda core holder configured to accommodate the core therein, wherein the core holder is integrally coupled to the connection pipe.
- The core assembly of claim 1, wherein the connection pipe includes a first connector at a first end the connection pipe and a second connector at a second end of the connection pipe, wherein the first and second connector are configured to connect to the refrigerant pipe by screw-coupling or by bonding.
- The core assembly for an air conditioner of claim 1 or 2, wherein the core is formed in a ring shape.
- The core assembly for an air conditioner of one of claims 1 to 3, wherein the core is arranged in at least one in number along a lengthwise direction of the connection pipe.
- The core assembly for an air conditioner of one of claims 1 to 4, wherein a signal terminal configured to transmit and receive an electric signal through the pipe by contacting the pipe is coupled to the connection pipe, and the signal terminal is individually coupled to the core holder.
- The core assembly for an air conditioner of one of claims 1 to 4, wherein terminal portions are extending from both sides of the core holder,
wherein signal terminals configured to transmit and receive an electric signal through the pipe by contacting the pipe are provided on inner side surfaces of the terminal portions,
wherein terminal pins configured to electrically connect the signal terminals to connectors extending from a pipe communication control board are penetratingly formed at an inner circumferential surface of the terminal portions towards an outer circumferential surface. - The core assembly for an air conditioner of one of claims 1 to 4, wherein terminal portions are extending from both sides of the core holder,
wherein signal terminals configured to transmit and receive an electric signal through the pipe by contacting the pipe are provided on inner side surfaces of the terminal portions,
wherein terminal pins configured to electrically connect the signal terminals to connectors extending from a pipe communication control board are provided between the terminal portions in a penetrating manner from an inner circumferential surface to an outer circumferential surface of the core holder,
wherein the terminal pins are connected to the signal terminals by a conductive wire. - The core assembly for an air conditioner of one of claims 1 to 7, wherein the core is formed of a powder type-soft magnetic substance.
- An air conditioner, comprising:an outdoor unit having an outdoor unit side heat exchanger;an indoor unit having an indoor unit side heat exchanger;a pipe configured to connect the outdoor unit side heat exchanger and the indoor unit side heat exchanger to each other; anda core assembly implementing an impedance with respect to an electric signal transmitted and received through the pipe,wherein a first connection portion to which the outdoor unit side heat exchanger or the indoor unit side heat exchanger is connected is provided at the outdoor unit or the indoor unit, a second connection portion connected to the first connection portion is provided at the core assembly, and a fourth connection portion is provided at the pipe so as to be connected to a third connection portion disposed at an opposite side to the second connection portion.
- The air conditioner of claim 9, wherein either the first connection portion and the second connection portion, or the third connection portion and the fourth connection portion, or both of them are connected to each other by bolts and nuts.
- The air conditioner of claim 9, wherein either the first connection portion and the second connection portion, or the third connection portion and the fourth connection portion, or both of them are connected to each other by welding.
- The air conditioner of claim 9, wherein the core assembly comprises:a connection pipe connected to an intermediate part of a pipe which connects an outdoor unit and an indoor unit with each other;signal terminals configured to transmit and receive an electric signal through the pipe by contacting the pipe; anda core disposed to encompass an outer circumferential surface of the connection pipe, and implementing an impedance with respect to an electric signal transmitted and received through the signal terminals.
- The air conditioner of claim 12, further comprising a core holder configured to accommodate the core therein, and integrally coupled to the connection pipe.
- The air conditioner of claim 13, wherein the signal terminal is provided at the core holder, a terminal pin is penetratingly formed at the core holder, and a connector extending from a pipe communication control board is detachably coupled to the terminal pin.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020100021466A KR101257081B1 (en) | 2010-03-10 | 2010-03-10 | Core assembly for air conditionner and air conditionner having the same |
KR1020100021469A KR101257084B1 (en) | 2010-03-10 | 2010-03-10 | Signal transmission device for air conditionner |
Publications (3)
Publication Number | Publication Date |
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EP2366957A2 true EP2366957A2 (en) | 2011-09-21 |
EP2366957A3 EP2366957A3 (en) | 2018-04-18 |
EP2366957B1 EP2366957B1 (en) | 2023-05-24 |
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Family Applications (1)
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EP11157057.8A Active EP2366957B1 (en) | 2010-03-10 | 2011-03-04 | Core assembly for air conditioner and air conditioner having the same |
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US (1) | US20110219795A1 (en) |
EP (1) | EP2366957B1 (en) |
CN (1) | CN102195172B (en) |
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KR102137020B1 (en) | 2013-11-11 | 2020-07-23 | 엘지전자 주식회사 | Signal transmission device for air conditionner |
BR112017024348A2 (en) * | 2015-05-12 | 2018-07-31 | Alliance Sustainable Energy | split cooling and heating systems |
CN106440103B (en) * | 2016-11-09 | 2022-04-19 | 广东美的制冷设备有限公司 | Air condensing units and have its air conditioner |
CN112747388A (en) * | 2021-02-03 | 2021-05-04 | 珠海格力电器股份有限公司 | Air conditioner pipeline device and air conditioner |
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-
2011
- 2011-02-02 US US13/019,428 patent/US20110219795A1/en not_active Abandoned
- 2011-02-15 CN CN201110039414.1A patent/CN102195172B/en not_active Expired - Fee Related
- 2011-03-04 EP EP11157057.8A patent/EP2366957B1/en active Active
Non-Patent Citations (1)
Title |
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None |
Also Published As
Publication number | Publication date |
---|---|
CN102195172A (en) | 2011-09-21 |
CN102195172B (en) | 2014-07-09 |
EP2366957B1 (en) | 2023-05-24 |
US20110219795A1 (en) | 2011-09-15 |
EP2366957A3 (en) | 2018-04-18 |
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