CN1963319A - Outdoor machine of air conditioner - Google Patents

Outdoor machine of air conditioner Download PDF

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Publication number
CN1963319A
CN1963319A CNA200610139650XA CN200610139650A CN1963319A CN 1963319 A CN1963319 A CN 1963319A CN A200610139650X A CNA200610139650X A CN A200610139650XA CN 200610139650 A CN200610139650 A CN 200610139650A CN 1963319 A CN1963319 A CN 1963319A
Authority
CN
China
Prior art keywords
mentioned
circuit board
support component
foregoing circuit
air conditioner
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
CNA200610139650XA
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Chinese (zh)
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CN100529557C (en
Inventor
梅下贵明
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.)
Hitachi Johnson Controls Air Conditioning Inc
Original Assignee
Hitachi Appliances Inc
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Publication date
Application filed by Hitachi Appliances Inc filed Critical Hitachi Appliances Inc
Publication of CN1963319A publication Critical patent/CN1963319A/en
Application granted granted Critical
Publication of CN100529557C publication Critical patent/CN100529557C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F24F1/20—Electric components for separate outdoor units
    • F24F1/22—Arrangement or mounting thereof
    • 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
    • F24F1/20—Electric components for separate outdoor units
    • F24F1/24—Cooling of electric components
    • 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
    • F24F1/46—Component arrangements in separate 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
    • 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
    • F24F1/56—Casing or covers of separate outdoor units, e.g. fan guards

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Inverter Devices (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

The aim of the invention is to provide an miniaturization outdoor machine of air conditioner which protects the electric components from physical load of the exterior. The electric components include: a circuit board back case; a circuit board for the electric components making the circuit board back fixed opposite to the circuit board back case while in the another region of the circuit board is disposed with accumbent frequency converter module etc.; a supporting part fixed on the circuit board back case, namely, a supporting part for supporting and fixing another end side of the circuit board through a way of connecting the circuit board back case and the circuit board using the bridge, supporting a part disposed with frequency converter module; and a circuit board top case for covering the top side of the circuit board. The electric component box is fixed on the clapboard, thereby the gauge of another side for the circuit board top case is smaller than that in the nearer side, and the part with smaller gauge is faced with the blower.

Description

Outdoor machine of air conditioner
Technical field
The present invention relates to the off-premises station of air conditioner.
Background technology
General split type air conditioner is made of indoor set and off-premises station.Be mounted with the minimal equipment that is used to carry the set air behind air-conditioning on the indoor set, be mounted with heat exchanger, pressure fan on the off-premises station, be used for the compressor of refrigerant conveying and be used to move the electrical box (electric components housing) of control.
Be arranged on the frequency converter module in the electrical box, because its caloric value is especially big, therefore, it is vital making module heat dissipating, also have, and also be vital for AC power being converted to galvanic rectification with other parts heat radiations such as diodes.As the method for heat radiation, extensively adopt or install fin or ventilation to improve the method for radiating effect.
As having implemented this prior art example of the electrical box of the countermeasure that temperature rises that prevents patent documentation 1-Japanese kokai publication hei 09-060928 communique is arranged, patent documentation 2-Japanese kokai publication hei 11-230583 communique, patent documentation 3-Japanese kokai publication hei 06-147555 communique etc.In the technology that patent documentation 1 is put down in writing, to be provided with the back of circuit board of circuit pattern as upside, to be provided with circuit board top of various electric components as downside, and will be as the heating the frequency converter module bigger electric components perpendicular circuit board face be arranged on the end of circuit board.Also have, this circuit board is assemblied on the peucinous installation supporter, and constitutes electrical box by its folding and unfolding is covered in housing (circuit board top housing) and with lid (back of circuit board housing).On the installation supporter of resin manufacture, thereunder, strengthen the rib of usefulness and the column sections up that the support circuit plate is used and be arranged to one.
In addition, with radiator with screw from crosswise fixed on vertical electrical control parts face, in order to realize this structure, supporter is installed also on correspondence position, is provided with longitudinal opening portion.That is, by the part of setting is set in the side that supporter is installed, and further assemblage gap encapsulant, thereby constitute longitudinal opening portion, radiator is installed on the vertical electrical control parts face with screw by means of the longitudinal opening portion that constitutes framework.This radiator is in the face of being provided with the heat exchange plenum chamber of refrigerant heat exchanger with pressure fan.
Figure 16 is from the sketch of the front view of the direction observed off-premises station identical with Fig. 4, represents above-mentioned prior art constructions.Here, label 4 expression pressure fans, 13 expression electrical boxs, 14 indication circuit plates, dotted line is represented electric components.Though in off-premises station 1, also heat exchanger and compressor etc. must be set, the size of off-premises station 1, in the drawings transversely mainly by the size of pressure fan 4 and the size and relation decision of the positions between these of electrical box 13.In the drawings vertically on, though the size of pressure fan 4 plays a decisive role, the thickness of electrical box 13 (above-below direction size) is also associated.Also have,, in the electric components on being arranged at circuit board, play a decisive role from the height (perpendicular to the size on the direction of circuit board) of circuit board 14 for the thickness of electrical box 13.
In the drawings, though pressure fan 4 and electrical box 13 are almost wanted state of contact near being configured to say large, keep the safe distance that can never contact as product needed.Therefore, for this electrical box 13, there is boundary in the distance that shorten between pressure fan 4 and the electrical box 13, and then makes off-premises station 1 miniaturization that boundary also be arranged.
Also have, shown in Figure 16 (a), if the frequency converter module vertically is installed on the circuit board 14, and fin is when being installed in here, then becomes the structure that terminal (1 row) with the frequency converter module supports fin.
When assembling in this case etc., if casing of off-premises station 1 etc. and the fin that exposes from electrical box 13 contact, then the load that produces by its contact also is added on the terminal of frequency converter module.The horizontal load of (perpendicular to the direction of frequency converter module or be parallel to the direction of circuit board), though can bear by supporter is installed, but vertically the load of (be parallel to the direction of frequency converter module or perpendicular to the direction of circuit board) must bear by a terminal by the frequency converter module.This may not be certain favourable aspect product.
Summary of the invention
The present invention proposes in order to address the above problem, and its purpose is the outdoor machine of air conditioner that provides small-sized.In addition, the present invention also aims to provide and make electric components not be vulnerable to outdoor machine of air conditioner from the miniaturization of the physical loads of outside.
Purpose of the present invention is mainly by adopting following structures to realize.
Outdoor machine of air conditioner of the present invention possesses: dispose the plenum chamber of pressure fan and dispose the electrical box of top configuration of dividing plate of the Machine Room of compressor across separation, it is characterized in that above-mentioned electrical box has: the back of circuit board housing; Circuit board, on one side its when being fixed into the back side that makes circuit board in the face of foregoing circuit backboard face-piece body, the electric components of frequency converter module etc. is disposed in accumbency in the zone of the another side of circuit board top; Support component is the support component that is fixed on the foregoing circuit backboard face-piece body, have the part of above-mentioned frequency converter module to support and the fixing other end of foregoing circuit plate by supported configurations, thereby bridge company connects above-mentioned back of circuit board housing and foregoing circuit plate; And the circuit board top housing that covers a top side of foregoing circuit plate; Above-mentioned electrical box is fixed on the aforementioned barriers, thereby the gauge that makes above-mentioned another avris of foregoing circuit plate top shell is made also littler than the gauge near an above-mentioned avris, and makes this part with little gauge in the face of above-mentioned pressure fan.
In addition, on the basis of said structure, can also adopt by the above-mentioned electric components that the input of above-mentioned frequency converter module is required to be configured in than above-mentioned frequency converter module, thereby will be configured in the structure of an above-mentioned avris as the filter condenser of above-mentioned electric components also by above-mentioned another avris.
In addition, on the basis of said structure, above-mentioned support component can also adopt the structure on an inclined-plane with two planes parallel to each other and relative these planes formation inclinations.
Also have, on the basis of said structure, above-mentioned support component can also adopt has two planes parallel to each other and perpendicular to the structure on the plane on these planes.
Also have, on the basis of said structure, can also adopt and utilize support fixation the structure by from the screw thread of foregoing circuit plate top shell one side fixedly realize of above-mentioned support component the foregoing circuit plate.
Also have, on the basis of said structure, can also adopt when the metal thin plate that will be provided with screw hole is fixed on the foregoing circuit plate, this thin plate of configuration between foregoing circuit plate and above-mentioned frequency converter module, the above-mentioned frequency converter module that has screwing through hole is set between above-mentioned support component and above-mentioned thin plate, fixes the structure of foregoing circuit plate and above-mentioned support component by fixing above-mentioned thin plate of screw thread and above-mentioned support component.
Also have, on the basis of said structure, above-mentioned support component can also adopt is using the metal while with above-mentioned support component, fin is arranged on the structure on the above-mentioned support component of the outer surface that is exposed to above-mentioned electrical box.
Also have, on the basis of said structure, can also adopt the shape of the foregoing circuit plate top shell of above-mentioned another avris is made the stair-stepping while, fin is arranged on the structure on the planar portions of above-mentioned support component of the outer surface that is exposed to above-mentioned electrical box.
Also have, on the basis of said structure, can also adopt, blinds type window is set, the structure that above-mentioned Machine Room and above-mentioned plenum chamber are communicated with on foregoing circuit plate top shell in the face of when on the above-mentioned electrical box of above-mentioned Machine Room peristome being set.
Also have, on the basis of said structure, can also adopt in above-mentioned electric components to comprise diode (led) module, above-mentioned supporter has the part of above-mentioned frequency converter module and above-mentioned diode (led) module by supported configurations, to support and fixing another distolateral structure of foregoing circuit plate.
Also have, on the basis of said structure, can also adopt foregoing circuit backboard face-piece body to have the flange surface parallel that is used to install above-mentioned support component with the foregoing circuit plate, above-mentioned support component has the planar portions parallel with the foregoing circuit plate that is used to be installed on the above-mentioned back housing, foregoing circuit plate top shell has and is used for the support component clamping face of above-mentioned planar portions to the extruding of above-mentioned back housing direction, and the above-mentioned planar portions of above-mentioned support component is by the structure of the above-mentioned support component clamping face clamping of the above-mentioned flange surface of foregoing circuit backboard face-piece body and foregoing circuit plate top shell.
Also have, on the basis of said structure, can also adopt the structure of configuration seal member between foregoing circuit plate and foregoing circuit backboard face-piece body.
According to the present invention, can make the outdoor machine of air conditioner miniaturization.Also have, can realize making electric components not to be vulnerable to outdoor machine of air conditioner from the miniaturization of the physical loads of outside.
Description of drawings
Fig. 1 is the stereoscopic figure of off-premises station.
Fig. 2 is the internal structure of expression off-premises station and the stereogram of the state when pulling down electrical box.
Fig. 3 is the vertical view of the structure of off-premises station.
Fig. 4 is the front view of the structure of off-premises station.
Fig. 5 is the vertical view that electric components is provided with face one side.
Fig. 6 is the side view of Fig. 5.
Fig. 7 is the stereogram that the expression electric components is provided with the inner face structure of face and back of circuit board housing.
Fig. 8 is the stereogram of the confined state of the whole electrical box of expression.
Fig. 9 is the stereoscopic figure after the assembling of whole electrical box.
Figure 10 is the upward view after the assembling of whole electrical box.
Figure 11 is the side view of Figure 10.
Figure 12 is the cutaway view along the P-P line of Figure 10.
Figure 13 is that circuit board is fixing with near the amplification view the support component.
Figure 14 has been to use the fixing cutaway view of using other embodiment of support component of circuit board.
Figure 15 is that the circuit board of Figure 14 is fixing with near the amplification view the support component.
Figure 16 is the sketch of existing off-premises station.
The specific embodiment
Below with reference to Fig. 1-Figure 13 embodiments of the invention are described.
Fig. 1 is the stereoscopic figure of off-premises station.Fig. 2 is the internal structure of expression off-premises station and the stereogram of the state when pulling down electrical box.Fig. 3 is the vertical view of the structure of off-premises station.Fig. 4 is the front view of the structure of off-premises station.Fig. 5 is the vertical view that electric components is provided with face one side.Fig. 6 is the side view of Fig. 5.Fig. 7 is the stereogram that the expression electric components is provided with the inner face structure of face and back of circuit board housing.Fig. 8 is the stereogram of the confined state of the whole electrical box of expression.Fig. 9 is the stereoscopic figure after the assembling of whole electrical box.Figure 10 is the upward view after the assembling of whole electrical box.Figure 11 is the side view of Figure 10.Figure 12 is the cutaway view along the P-P line of Figure 10.Figure 13 is that circuit board is fixing with near the amplification view the support component.
At first, use Fig. 1～Fig. 4 that off-premises station is described.
Label 1 is an off-premises station, and (end face 2a and right flank 2b) covers by casing 2.Side in the front is provided with the wind that is used for having passed through the heat exchanger 5 of air conditioner and passes out to outside grid 3.On the depth direction of the position relative, dispose pressure fan 4, dispose in depths more and intersect the heat exchanger 5 of fin tubulose with grid 3.Pressure fan 4 be positioned at heat exchanger 5 in face of, grid 3 is positioned at more front.Heat exchanger 5 disposes around roughly be L font ground to the back side from the side of off-premises station 1, to guarantee big as far as possible area and to improve heat-exchange capacity.Pressure fan 4 has also used big as far as possible bore.Also have, in principle, in the explanation of whole figure, up and down before and after (reaching depth in front) etc. towards shown in the reference axis of Fig. 2.
Close right side at left and right directions is provided with dividing plate 6, uses plenum chamber 7 and Machine Room 8 to separate heat exchange.In heat exchange usefulness plenum chamber 7, as mentioned above, dispose pressure fan 4 and heat exchanger 5.In Machine Room 8, dispose compressor 9, cold-producing medium adjusting jar 10, conveying pipe of refrigerant 11,12 etc.In order to make compressor 9 high speed rotating by Frequency Converter Control, be necessary to strengthen the electric current that flows through circuit.For this reason, normally strengthen the capacity and the size of electric components, the corresponding electrical box 13 that also strengthens the holding electric parts.Thus, flat though the space of pressure fan 4 and compressor 9 tops is limited spaces as if electrical box 13 is made, then be to be contained in the wider space.In other words, electrical box 13 should be flat casing.
The " loaded " position of electrical box 13 is at the epimere near the top panel 2a of off-premises station 1.Circuit board top housing 36 is across plenum chamber 7 and Machine Room 8 and be fixed in the top of dividing plate 6.Therefore, 13 of electrical boxs are fixed on the dividing plate 6.Though will narrate below for electrical box 13, in Fig. 2, the state after having represented half assembling part (13x) of circuit board and back of circuit board housing and circuit board top housing 36 pulled down.Electrical box 13 is installed on the circuit board top housing 36 that is fixed on the dividing plate 6 by this half assembling part 13x that will finish various distributions etc. and is assembled.
Below, with Fig. 5 and Fig. 6 circuit board is described.
Label 14 is circuit boards, and Fig. 5 represents that electric components is provided with face (circuit board top), is the upward view of observing from bottom to top when in off-premises station electrical box 13 being installed.Circuit board 14, circuit board top promptly electric components be provided with various electric components are set on the face in, have the circuit pattern (Copper Foil wiring pattern) of having implemented distribution in advance with Copper Foil etc. at back of circuit board.Back of circuit board for example uses green etc. painted, is the face that the terminal (foot of electric components) to electric components carries out solder.Also have, be illustrated, also can implement the Copper Foil wiring pattern across circuit board top (a plurality of layer) though be primarily aimed at the so-called single face circuit board of only having implemented above-mentioned Copper Foil wiring pattern overleaf here.
Label 15 is frequency converter modules, is mounted to make its face be parallel to circuit board 14.Being equipped with to compressor 9 usefulness motor circuits in inside modules and supply with rotating thyristor that electric power is electric energy and input and output drive circuit thereof etc., is the part of caloric value maximum.Therefore, must cool off frequency converter module 15 energetically.Also have, be crab pin shape ground at its right and left and respectively be provided with a row terminal.Wherein, a row terminal on the left side is mainly relevant with input, and a row terminal on the right is mainly relevant with output, and, diode 15b and capacitor 15c are configured in this input terminal row one side.
Label 15b is the finding diode, and 15c is the finding capacitor, be disposed near the frequency converter module 15 and the circuit board end between promptly near zone on one side.For example, with two parts of 15b, 15c as one group and constitute boostrap circuits with 3 groups the last branch switch elements in the frequency converter module 15 are moved.Also have, can also be with the space of the top (below when in off-premises station 1, electrical box 13 being housed being) of these findings, effectively utilize as the allocation position of support component 35 described later.
By adopting this structure, owing to the bigger frequency converter module 15 of heating can be configured near the central authorities of circuit board, therefore, and even have the aperture that a plurality of terminals insert usefulness, intensity that also can holding circuit plate 14.Label 16 is the diode (led) modules that are used for rectification, with frequency converter module 15 face is installed on the circuit board 14 abreast.Be equipped with in diode (led) module 16 inside and convert commercial ac power source to galvanic voltage doubling rectifing circuit, this diode (led) module 16 is the big parts of heating that are only second to frequency converter module 15.Therefore, diode (led) module 16 also must cool off energetically.
Label the 18, the 19th, filter condenser is used for and will makes smooth dc waveform with the voltage waveform of diode (led) module 16 rectifications, erect be arranged at diode (led) module 16 near.Height dimension maximum in the electric components of filter condenser 18,19 on being disposed at circuit board 14, thus, the height dimension of restriction electrical box.
The height of electrical box 13 (thickness) is subjected to the restriction that vertical direction at circuit board 14 has the filter condenser 18,19 etc. of large-size.If more smooth parts such as frequency converter module 15, diode (led) module 16, though with the thickness of electrical box 13 do less also no problem.Therefore, as long as frequency converter module 15 grades are configured in the zone near one side of circuit board 14, and filter condenser 18,19 is configured in the inboard of more leaning on circuit board 14 than the position of such configuration, what just can make circuit board 14 is the end size attenuate of electrical box 13 near zone on one side.Label 20 is power relays, action when instruction such as operation from indoor set is arranged, stop.This instruction is transmitted from mixing IC21.Since mix IC21 be used to control reception from the signal of indoor set or and circuit board 14 in part between signal exchange, therefore, be disposed at the substantial middle position that helps circuit structure.Label 22 is to mix the power supply (5V) that IC21 uses, and is used for it is driven.
Label 27 is the noise filter coils that constitute the major part of noise filter circuit, is used for preventing that the noise that comprises the power-supply circuit of frequency converter module 15 grades from outwards spreading out of.Thus, prevent the misoperation of the peripheral product of electric components on the circuit board 14 or relevant device and air conditioner etc.Label 24 is switch transformers, is used for supplying with according to the action of the switch I C25 being positioned near the DC low-voltage (15V) of pressure fan 4 usefulness motors etc.
Label 26 is the filter condensers that are used to make the commercial ac power source planarization and become DC voltage waveform.The DC voltage that filter condenser 26 generates in order to make sends switch I C25 to, is arranged near it.Label 28 is current detectors, is used to maximum constraints electric current that detects by air conditioner etc.Label 29 is that coil use in communication, and generation is used to receive and dispatch the signal voltage of the signal of indoor set and off-premises station 1 operation conditions.Label 30 is fixed heads, is the thin plate across two modules, is fixed on the circuit board 14.
Be that the structure of electrical box 13 describes with Fig. 7, Fig. 8 to critical piece below.Fig. 7 is the upward view of upwards observing from downside, and Fig. 8 is the vertical view of observing downwards from upside.
Label 31 is back housing of metal circuit board.It at one end is the left side, have at the side plate lower end of left plate and the circuit board 14 outside flange surface A of bending abreast, on this flange surface A, be provided be used for being screwed into hole Aa with the fixing two place's screws of support component 35 and be positioned at the hole Aa of this two place the outside be used for be screwed into hole Ca with the fixing two place's screws of circuit board top housing 36.
At the other end is the right side, have will in face of the part of a side (front side) plate and inboard (rear side) plate be fraction, each flange surface B that bends inwards separately abreast at side plate lower end and circuit board 14, and, be respectively equipped with and be used for and the fixing screw insertion hole Ba of place of circuit board 14 at each flange surface B.
On the bight of circuit board 14 1 ends, have the fixedly hole Bb of usefulness of back of circuit board housing.Be disposed at the most of electric components on the circuit board 14, make the terminal (foot) of its root penetrate into back of circuit board, and setting is arranged at circuit board top.Circuit structure is printed on the back of circuit board, and makes the terminal solder that has connected on the set circuit part.Therefore, because the solder part that is disposed at the various electric components on the circuit board 14 is between the top panel of flange surface B and back of circuit board housing 31,, therefore, must guarantee to make the non-touching enough distances of these parts.
Be used for support component 35 is fixed on that two places on the circuit board 14 are fixing use through hole 15a being provided with on the frequency converter module 15, on diode (led) module 16, be provided with a place similarly and fix and use through hole 15b.On fixed head 30 (with reference to Fig. 5 etc.), be provided with to be used to allow and connect the screw hole that said fixing is screwed into the screw of through hole 15a, 15b.
Support component 35 has the 35a of outerplanar portion, the 35b of inner plane portion and the inclined plane part 35c between these two planar portions.Planar portions 35a is provided with and is used for and the fixing hole Ab of two places of back of circuit board housing 31 outside, is provided with to be used for and the fixing hole Db of three places of the fixed head 30 of circuit board 14 on the 35b of inner plane portion.Support component 35 is the good alumiaum articles of thermal conductivity, and a side below the reaching foremost of the 35a of its outerplanar portion is at vertical integrally formed multi-disc fin 35d.Therefore support component 35, has the function that will be distributed by the heat of two modules generations, and has further improved heat sinking function by the multi-disc fin is set owing to be metal.
It is on the circuit board 14 that support component 35 is fixed in fixed head 30 with screw, makes two modules between support component 35 and fixed head 30.Were it not for fixed head 30, when support component 35 being directly installed on two modules, service load in the portion of terminal of two modules or solder portion then, thereby unsatisfactory.Can take place when serious that foot fractures or solder portion peels off etc., become the reason of loose contact.Therefore, solved this problem by being fixed on the thin plate.
If circuit board 14 and the support component 35 that will so fix are made the unit, then this unit is installed on the back of circuit board housing 31.Also have, support component 35 also can be regarded as and be used for fixing on back of circuit board housing 31, and as middleware fixing circuit board 14 and back of circuit board housing 31.
Support component 35 also has and is installed on the back of circuit board housing 31 the one-sided of circuit board 14 and the effect of being supported.This is because it possesses inclined plane part 35c, has given full play to the support function that utilizes elastic force.Also having, why make two modules close like this, is because not only realize the simplification of cooling mechanism, also improves electrical box 13 heat sinking function on the whole.
Label 32 is resinous seal members, be disposed at circuit board 14 around.Can not finish electrical box 13 even do not use these parts yet, but from the sealing in the gap between circuit board 14 and the back of circuit board housing 31, the convenience equal angles that prevents to be disposed at electric components on the circuit board 14 and contact between the circuit board top housing 36 and assembling is necessary part.
On seal member 32, be provided with a plurality of position gib blocks 33 that protrude in the circuit board 14 of inner circumferential surface a little, guide 34 and seal member 32 formation one are inserted in the location that is used for mounting circuit boards top shell 36.Also have, the height of the above-below direction of this position gib block 33 also has and makes circuit board 14 and back of circuit board housing 31 mutually near the character that are no more than this height, therefore, must they not contacted mutually this height setting one-tenth.Though illustrated right side is subjected to the restriction of flange surface B, because the left side has no particular limits, therefore, this height setting is most important.
Label 36 is circuit board top housings.Though electrical box 13 is positioned at the below when being loaded on the off-premises station 1, because of the top circuit board top housing that is referred to as of covering board 14.Circuit board top housing 36 usefulness steel plates are made, and make the partly container-like of part breach.This barbed portion is to have the peristome 39 that the suction air of big opening is used, and when being loaded into electrical box 13 in the off-premises station 1, is exposed in the Machine Room.
Be provided with side plate 37 at fore-and-aft direction (in front-depth direction), on side plate 37, be provided with the blinds type window 37a of sucking-off air.So-called sucking-off air refers to delivers to heat exchange with the plenum chamber 7 with air from this window sucking-off, when electrical box 13 is loaded on the off-premises station 1, and pressure fan 4 sucking-offs of the air in the electrical box 13.Also have, in Fig. 4,, therefore, can consider the situation that water droplet etc. disperses, with blinds type window 37a downwardly facing opening, with entering of preventing that water from dripping etc. because pressure fan 4 rotates along clockwise direction.If be necessary, can be not yet under to blinds type window opening and at the lower right of Fig. 4 opening.But consider and utilize equilibrium problem between the air sucking-off of negative pressure of pressure fan.
Also have, though the position of filter condenser 18,19 should with above-mentioned two modules near configuration, by being configured in as much as possible within the circuit board 14, thereby make the height dimension (thickness) of end 37b shorten also attenuation upward.
Fail to make the size up and down of the said circuit board top housing 36 of present embodiment and reduce attenuation to the size up and down of electrical box from this point prior art.This be because, or be, or be the top back side of circuit board and the structure (with reference to Figure 16) of present embodiment formation inverse relationship in structures on end such as the end of circuit board frequency converter modules.
In the present embodiment, many effort have been done in the configuration of module and other electric components, make the size up and down (thickness) of circuit board top housing 36 and reduce attenuation and constitute stepped (, also can be inclined-plane etc.) to the size up and down of electrical box though be stepped among the figure.
Specifically, 15 accumbency of frequency converter module are configured on the circuit board.Have, having adopted terminal supportor as frequency converter module 15 is the module of biserial type (dual inline type) again.Between the left terminal row of the end of circuit board and frequency converter module 15, be equipped with the part 15b, the 15c that are used to constitute drive circuits such as boostrap circuit.By taking these measures, can make end attenuation across the part of facing plenum chamber 7 in the electrical box 13 of dividing plate 6.
If filter condenser 18,19 accumbency can be configured on the circuit board 14, then can make thinner and non-stair-stepping plane, but as shown in Figure 3, off-premises station 1 in, strengthen the shared area of electrical box 13, and to make circuit board 14 maximizations be difficult.Aforesaid at the dual inline type part employing and configuration on the effort made, be useful not changing on the whole big or small this point of circuit board.Certainly, be that the part of single-column type also can obtain the effect identical with the dual inline type part with fixed head 30 by terminal.
With peristome 39 opposite sides (among Fig. 8 left side), be formed with and be used for the support component clamping face 40 to the direction pushing of back of circuit board housing 31 the planar portions 35a of foreign side of the planar portions of support component 35.Have again, on this face from the foreign side end to the right in the scope in the middle of facial, if the forniciform zone that the below in the digraph reduces so that the planar portions 35a of foreign side of the planar portions of support component 35 embeds, and makes it to have the function of the watertight barrier that enters as anti-sealing.Because the width of support component 35 is also littler than the width of circuit board top housing 36, therefore, partly be zone curved on remainder specially is not provided with in the difference of width, to prevent entering of water.Also have, have and align, be provided with the fixedly hole Cb of usefulness of back of circuit board housing that what is called makes conplane prolongation flange 40a with watertight barrier in the direction both ends of departing from forwards, backwards from support component clamping face 40.
The order of the assembling work of electrical box 13 then, is described according to Fig. 7, Fig. 8.
At first, back of circuit board housing 31 is turned over and top surface side is placed on the workbench downwards.Secondly, make electric components configuration plane (circuit board top) up, aligned position gib block 33, with seal member 32 be assemblied in circuit board 14 around.Under this state, wiring harness backboard face-piece body 31.Thus, because seal member 32 becomes the gap between the inner face of the surrounding edge portion of stopping up circuit board 14 and back of circuit board housing 31, therefore, can suppress dust etc. and enter into circuit pattern one side of exposing conductive part.
Secondly, two place's back of circuit board housings 31 of alignment circuit plate end fixedly the hole Bb of usefulness and back of circuit board housing 31 circuit board fixedly usefulness hole Ba and be screwed.Around this screw standing part, but make the part of circuit board be in the state of conducting, on back of circuit board housing 31, to implement product casing ground connection (ground connection).In addition, also carry out by the lead-in wire ground connection.
Then, fixing by the fixing support component of the circuit board on the interior side's planar portions 35b that is arranged at support component 35 with hole 15a, 15b with two module faces on hole Db and the circuit board, be screwed support component 35 and fixed head 30.
Subsequently, make two place's back of circuit board housings of the planar portions 35a of foreign side of planar portions of support component 35 other ends fixedly the support component of hole Ab and the flange surface A of back of circuit board housing 31 of usefulness is fixing and aim at, and be screwed with hole Aa.Therefore, the planar portions 35a of foreign side and the flange surface A of planar portions become with the face state of contact.
Thus, finish the half assembling part 13x that comprises back of circuit board housing 31, circuit board 14, support component 35 and seal member 32.At this moment, seal member 32 is clamped by circuit board 14 and back of circuit board housing 31, and fixes by the screw thread of flange surface A, B part, is fastened between these parts.But if knockout screw, seal member 32 also can be pulled down.
Below, as shown in Figure 2, circuit board top housing 36 makes opening one side up, and is pre-assembled on the dividing plate 6 of off-premises station 1.Under this state, make electric components configuration plane (circuit board top) down and along the plug-in unit guide 34 of seal member 32, half assembling part 13x and circuit board top housing 36 are assembled together.
When assembling half assembling part 13x and circuit board top housing 36, make the insertion guide 34 of seal member 32 be positioned at inside and (vertically) covering along the vertical direction of the side plate 37,38 of circuit board top housing 36, and side plate 37,38 is positioned on the side plate of back of circuit board housing 31.And, assembling proceed to up to insert that guide 34 contacts with the base plate of circuit board top housing 36 or side plate 37,38 with till the end face of back of circuit board housing 31 contacts.
Prolongation flange 40a by making circuit board top housing 36 and foreign side's planar portions 35a face of the planar portions of support component 35 contact, the fixing hole Ca of using of the fixing circuit board top housing with hole Cb and back of circuit board housing 31 of the back of circuit board housing that prolongs flange 40a is aimed at, and fix, thereby finish electrical box 13 with screw thread.Therefore, the planar portions 35a of foreign side of the planar portions of support component 35 becomes the state between two planes of support component clamping face 40 of the flange surface A that is sandwiched in back of circuit board housing 31 and circuit board top housing 36.Perhaps, though different with said method, assembled in advance half assembling part 13x and circuit board top housing 36 are also arranged, after finishing electrical box 13, again electrical box 13 is fixed on the method on the dividing plate 6.Even in this case, also the situation with above-mentioned assembling is the same, and is fixing behind mating holes.
Fig. 9～Figure 11 represents is outward appearance after the assembling of electrical box 13.As shown in Figure 9, electrical box 13 top by back of circuit board housing 31 sealing, and the 35d of fin portions foremost of support component that makes illustrated left surface is to exposing outside.Though exposed division is the left side in diagram, also has below.Perhaps, also can only be arranged on either party.
Also have, be provided with blinds type window 37a on the side in face of the circuit board top housing 36.The right side is a peristome 39, as among Figure 10,11 as can be known, electric components right half part towards below expose.Air and the air in the electrical box 13 of making the Machine Room 8 of off-premises station 1 can ventilate to plenum chamber 7.
In the electrical box 13 in being loaded in off-premises station 1, blinds type window 37a is to plenum chamber 7 one side openings at pressure fan 4 places, Machine Room 8 openings that the big opening portion that electric components exposes is divided towards the dividing plate 6 that has anti-flammability with steel plate etc.Therefore, the large space that electrical box 13 and Machine Room 8 lump together is communicated with plenum chamber 7, can ventilate with lower resistance by big opening.For this reason, can be fixed on the dividing plate 6 as long as the base plate size of circuit board top housing 36 made, and can prevent that water droplet from entering in the electrical box 13, and can get final product with whole size that circuit board top shell 36 covers the part of exposing to plenum chamber 7.Therefore, the size of circuit board top housing 36 can make electrical box 13 size roughly half.At this moment, the peripheral wall of electrical box 13 also can be considered with the peripheral wall of Machine Room 8 public.
Why roughly half and the enlarged opening part of the size by the base plate size of circuit board top housing 36 being made electrical box 13 like this, thus can ventilate with lower resistance, be because supported circuit board 14 from the top with electrical box 13.Conversely, shown in Figure 16 (b), if circuit board 14 below, size that can opening, the size up and down (thickness) with electrical box 13 is the upper limit at most.Also have, the size up and down (thickness) that is not limited to electrical box 13 becomes conclusive resistance, also can consider to make the gap between the right flank of the right flank of electrical box 13 and off-premises station 1 to become conclusive resistance.With reference to Fig. 3, Fig. 4 as can be known, this is because these faces are very approaching.
If pressure fan 4 operations, then the suction function of hot-air by being caused by pressure fan 4 in the electrical box 13 forcibly is sucked into plenum chamber 7 from blinds type window 37a.And the air of Machine Room 8 also sucks also from peristome 39 and similarly is sucked into plenum chamber 7 from blinds type window 37a.
Effect below in conjunction with the enlarged drawing explanation support component 35 of the cutaway view of Figure 12 and Figure 13.
Support component 35 is fixed between circuit board 14 and the back of circuit board housing 31 with the state of middleware, because two contacts of fixed part are plane contact each other, therefore, driving fit well.Because circuit board 14 and support component 35 are supported by two faces of flange surface A, B, therefore, become the structure of central part because of easy deflections such as deadweights.Can also produce distortion because of heat.Here, interior side's planar portions 35b pushes circuit board 14 near the middle body of easy deflection and easy deformation to back of circuit board housing 31 1 sides.In addition, because the inclined plane part 35c of support component 35 also has elastic force, therefore, be favourable as the structure of support circuit plate 14.
In addition, support component 35 has the planar portions 35a of foreign side and two planes of Nei Fang planar portions 35b of planar portions, and the planar portions 35a of foreign side of planar portions is clamped between two planes of support component clamping face 40 of the flange surface A of back of circuit board housing 31 and circuit board top housing 36.Therefore, even the planar portions 35a of foreign side of the planar portions of exposing as the profile of electrical box 13 is subjected to physical force, physical force is also absorbed by the two sides of clamping and disperses, and is difficult for being delivered to the inside of electrical box 13.That is to say that active force is difficult for being delivered on interior square planar portions 35b or the connected frequency converter module 15 etc.
Conversely, the heat of coming from biographies such as frequency converter modules 15 is delivered on two planes of this planar portions of clamping by the planar portions 35a of foreign side of planar portions, also can dispel the heat to housing.Therefore, fin not necessarily being set on support component 35 also can dispel the heat.
In addition,, close, can prevent entering of sealing by plane honey with watertight barrier (with reference to the circuit board top housing of Figure 10) at contact site support component 35 and the back of circuit board housing 31 electrical box outlet.Also have because support component 35 uses the good metal of heat conductivilitys, and can make fin portions 35d be exposed to outside the housing the side and below, therefore, can strengthen area of dissipation, improve radiating effect.
Also have, in the present embodiment, by making great efforts position configuration with the filter condenser 18,19 that height dimension is the highest in the electric components more than the position of frequency converter module 15 that rises by the central authorities of circuit board 14 or diode (led) module 16 (with reference to Fig. 5), thereby the height dimension of the circuit board top housing 36 of support component 35 1 sides can be reduced to position near the side height of back of circuit board housing 31.That is to say, can be near the position (territories, a lateral areas of circuit edges of boards) the terminal row on the left side of filter condenser 18,19 non-existent frequency converter modules 15, with 36 attenuation of circuit board top housing.This part can be made stepped or inclined plane shape.
Stepped by circuit board top housing 36 is made, can make electrical box 13 and pressure fan 4 near and make it in abutting connection with configuration.If make it to be positioned as close to, because the possibility that contacts with each other is arranged, therefore, make it face pressure fan 4 with the position relation configuration electrical box 13 of discontiguous degree.As mentioned above, owing to can improve the relation of electrical box 13 and pressure fan 4, therefore, can realize the miniaturization of off-premises station 1.
Also have, with support component 35 from frequency converter module 15 or diode (led) module 16 when draw the outside, can this step-like part towards below configuration multi-disc fin 35d or towards landscape configuration multi-disc fin 35d.If can guarantee horizontal fin or below fin in any one party sufficient heat-conducting area is arranged, though needn't be arranged on both sides, if be arranged on both sides and then can guarantee heat-conducting area more fully.
Also have, this step-like part is because the movement disorder of air can be thought to be in so-called turbulent condition.Therefore, by in the face of pressure fan 4 ground configuration electrical box 13, can utilize turbulent flow to improve radiating effect.The closer to these, improve the air quantity that can be used in heat radiation more.Also having, because the bridging effect of support component 35 has effectively utilized the lower space of findings such as boostrap circuit, therefore, can also obtain bigger heat-dissipating space, is the structure that can contribute to the miniaturization of circuit board 14.
Below with other embodiment of the sectional views support component shape of Figure 14 and Figure 15.What the figure shows is that embodiment has been carried out the support component 43 that changes, is equivalent to the cutaway view of Figure 12 part.This support component 43 constitutes its cross section and is crank-like, and at one end possesses the fixing planar portions 43a that uses of back of circuit board housing, possesses the fixing planar portions 43b that uses of circuit board at the other end.Owing to do the left and right directions width of planar portions 43a also wideer, and a side has disposed more fin 43d below its broad, therefore, has the feature that can improve radiating effect than the planar portions 35a of foreign side.Also have, owing to there is not rake on the cross section, therefore, the making of support component 43 is easy.As for other effect, can obtain and have the same effect of embodiment of Figure 12 of inclined plane part.Other example as the form of support component, though it is that zigzag or cross section are linear (is independent plate as support component) etc. that the cross section is arranged, but so long as the shape that can put up a bridge between circuit board 14 and back of circuit board housing 31 then is not limited to above-mentioned form.Also have, support component is being made under the situation of independent plate, be necessary to adjust the height dimension of circuit board top housing or back of circuit board housing.

Claims (12)

1. outdoor machine of air conditioner possesses: disposes the plenum chamber of pressure fan and disposes the electrical box of top configuration of dividing plate of the Machine Room of compressor across separation, it is characterized in that,
Above-mentioned electrical box has:
The back of circuit board housing;
Circuit board, on one side its when being fixed into the back side that makes circuit board in the face of foregoing circuit backboard face-piece body, the electric components of frequency converter module etc. is disposed in accumbency in the zone of the another side of circuit board top;
Support component is the support component that is fixed on the foregoing circuit backboard face-piece body, have the part of above-mentioned frequency converter module to support and the fixing other end of foregoing circuit plate by supported configurations, thereby bridge company connects above-mentioned back of circuit board housing and foregoing circuit plate; And
Cover the circuit board top housing of a top side of foregoing circuit plate;
Above-mentioned electrical box is fixed on the aforementioned barriers, thereby the gauge that makes above-mentioned another avris of foregoing circuit plate top shell is made also littler than the gauge near an above-mentioned avris, and makes this part with little gauge in the face of above-mentioned pressure fan.
2. outdoor machine of air conditioner according to claim 1 is characterized in that,
Be configured in than above-mentioned frequency converter module also by above-mentioned another avris by the above-mentioned electric components that the input of above-mentioned frequency converter module is required, thereby will be configured in an above-mentioned avris as the filter condenser of above-mentioned electric components.
3. outdoor machine of air conditioner according to claim 1 is characterized in that,
Above-mentioned support component has the inclined-plane that two planes parallel to each other and relative these planes have tilted.
4. outdoor machine of air conditioner according to claim 1 is characterized in that,
Above-mentioned support component has two planes parallel to each other and perpendicular to the plane on these planes.
5. outdoor machine of air conditioner according to claim 1 is characterized in that,
Utilize above-mentioned support component to the support fixation of foregoing circuit plate by fixedly realizing from the screw thread of foregoing circuit plate top shell one side.
6. outdoor machine of air conditioner according to claim 5 is characterized in that,
When the metal thin plate that will be provided with screw hole is fixed on the foregoing circuit plate, this thin plate of configuration between foregoing circuit plate and above-mentioned frequency converter module,
The above-mentioned frequency converter module that has screwing through hole is set between above-mentioned support component and above-mentioned thin plate,
Fix foregoing circuit plate and above-mentioned support component by fixing above-mentioned thin plate of screw thread and above-mentioned support component.
7. outdoor machine of air conditioner according to claim 1 is characterized in that,
Above-mentioned support component is being used the metal while, fin is being arranged on the above-mentioned support component of the outer surface that is exposed to above-mentioned electrical box.
8. outdoor machine of air conditioner according to claim 1 is characterized in that,
The shape of the foregoing circuit plate top shell of above-mentioned another avris is made the stair-stepping while, fin is arranged on the planar portions of above-mentioned support component of the outer surface that is exposed to above-mentioned electrical box.
9. air conditioner according to claim 1 is characterized in that,
In the face of when on the above-mentioned electrical box of above-mentioned Machine Room peristome being set, blinds type window is set on foregoing circuit plate top shell, above-mentioned Machine Room and above-mentioned plenum chamber are communicated with.
10. outdoor machine of air conditioner according to claim 1 is characterized in that,
In above-mentioned electric components, comprise diode (led) module,
Above-mentioned supporter has the part of above-mentioned frequency converter module and above-mentioned diode (led) module by supported configurations, to support and fixedly another of foregoing circuit plate is distolateral.
11. outdoor machine of air conditioner according to claim 1 is characterized in that,
Foregoing circuit backboard face-piece body has the flange surface parallel with the foregoing circuit plate that is used to install above-mentioned support component,
Above-mentioned support component has the planar portions parallel with the foregoing circuit plate that is used to be installed on the above-mentioned back housing,
Foregoing circuit plate top shell has and is used for the support component clamping face of above-mentioned planar portions to the extruding of above-mentioned back housing direction,
The above-mentioned planar portions of above-mentioned support component is by the above-mentioned support component clamping face clamping of the above-mentioned flange surface of foregoing circuit backboard face-piece body and foregoing circuit plate top shell.
12. outdoor machine of air conditioner according to claim 1 is characterized in that,
Between foregoing circuit plate and foregoing circuit backboard face-piece body, dispose seal member.
CNB200610139650XA 2005-11-11 2006-09-28 Outdoor machine of air conditioner Expired - Fee Related CN100529557C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005326818 2005-11-11
JP2005326818A JP4951233B2 (en) 2005-11-11 2005-11-11 Outdoor unit for air conditioner

Publications (2)

Publication Number Publication Date
CN1963319A true CN1963319A (en) 2007-05-16
CN100529557C CN100529557C (en) 2009-08-19

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Application Number Title Priority Date Filing Date
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KR (1) KR100747946B1 (en)
CN (1) CN100529557C (en)

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US8047013B2 (en) 2006-03-17 2011-11-01 Toshiba Carrier Corporation Outdoor unit of air conditioner
CN101595349B (en) * 2007-09-28 2012-07-18 东芝开利株式会社 Outdoor unit for air conditioner
CN102759151A (en) * 2011-04-28 2012-10-31 三洋电机株式会社 Outdoor unit for air conditioner
CN103423816A (en) * 2012-05-16 2013-12-04 珠海格力电器股份有限公司 Electric appliance box of air conditioner outdoor unit and air conditioner outdoor unit with same

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JP5573601B2 (en) * 2010-10-29 2014-08-20 アイシン・エィ・ダブリュ株式会社 Board condensation prevention structure
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JP3162845B2 (en) * 1992-11-14 2001-05-08 三洋電機株式会社 Outdoor unit of air conditioner
KR0118790Y1 (en) * 1995-06-19 1998-07-15 김광호 Out door machine of air conditioner
JP3322778B2 (en) * 1995-08-22 2002-09-09 東芝キヤリア株式会社 Outdoor unit of air conditioner
JP3862847B2 (en) * 1998-02-13 2006-12-27 東芝キヤリア株式会社 Air conditioner electrical parts box
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JP4660130B2 (en) * 2003-09-30 2011-03-30 三洋電機株式会社 Air conditioner outdoor unit

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Publication number Priority date Publication date Assignee Title
US8047013B2 (en) 2006-03-17 2011-11-01 Toshiba Carrier Corporation Outdoor unit of air conditioner
CN101595349B (en) * 2007-09-28 2012-07-18 东芝开利株式会社 Outdoor unit for air conditioner
CN102759151A (en) * 2011-04-28 2012-10-31 三洋电机株式会社 Outdoor unit for air conditioner
CN102759151B (en) * 2011-04-28 2016-01-13 三洋电机株式会社 The outdoor unit of aircondition
CN103423816A (en) * 2012-05-16 2013-12-04 珠海格力电器股份有限公司 Electric appliance box of air conditioner outdoor unit and air conditioner outdoor unit with same
CN103423816B (en) * 2012-05-16 2016-08-31 珠海格力电器股份有限公司 Electric appliance box of air conditioner outdoor unit and air conditioner outdoor unit with same

Also Published As

Publication number Publication date
KR100747946B1 (en) 2007-08-08
KR20070050807A (en) 2007-05-16
JP2007132606A (en) 2007-05-31
JP4951233B2 (en) 2012-06-13
CN100529557C (en) 2009-08-19

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Effective date of registration: 20160818

Address after: Hongkong, China

Patentee after: Johnson Controls Hitachi air conditioning technology (Hong Kong) Co.,Ltd.

Address before: Tokyo, Japan

Patentee before: Hitachi Appliances, Inc.

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Effective date of registration: 20180615

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Patentee after: HITACHI-JOHNSON CONTROLS AIR CONDITIONING, Inc.

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Patentee before: Johnson Controls Hitachi air conditioning technology (Hong Kong) Co.,Ltd.

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