CN1140735C

CN1140735C - Condensate collection system for room air conditioner

Info

Publication number: CN1140735C
Application number: CNB971819823A
Authority: CN
Inventors: R・B・达席尔瓦; R·B·达席尔瓦
Original assignee: Carrier Corp
Current assignee: Carrier Corp
Priority date: 1997-12-30
Filing date: 1997-12-30
Publication date: 2004-03-03
Anticipated expiration: 2017-12-30
Also published as: CN1249029A

Abstract

The preset invention provides an air conditioning unit (2) which comprises an indoor part (4) and an outdoor part (6), wherein the indoor part and the outdoor part are supported by a base plate and are isolated by the baffle forming part of the base plate; the indoor part (4) comprises an indoor fan (24) and an evaporator coil pipe (22). When the air conditioning unit works, water in air to be cooled is condensed by the cold evaporator, and the condensate liquid flows down to the lower end of the evaporator (22) and is collected at the lower end; and the air conditioning unit is provided with a flowing channel penetrating through the baffle from the indoor part (4) to the outdoor part (6). The lower end of the evaporator is supported by a support surface which is basically horizontal, and condensate liquid collecting grooves (108 and 136) are respectively provided with a first part which is positioned near the horizontal support surface, is basically parallel to the support surface and is communicated with the liquid of the support surface. The first part of the condensate liquid collecting groove (108) is inclined from a high point at one end of the condensate liquid collecting groove to a lower point at the other end. The condensate liquid collecting grooves are provided with a second part communicated with the liquid of the other end of the first part, and the second part is inclined from a high point communicated with the liquid of the first part to a lower point positioned in the outdoor part (6) of the air conditioner (2).

Description

The condensate collection system that is used for room air conditioner

Technical field

The present invention generally relates to a kind of air-conditioning system, more particularly, the present invention relates to a kind of room air conditioner that the moisture of removing can be directed to the outside of described device from room air.

Background technology

Warm air all is moist usually, that is, it contains institute's entrained water vapor.When air-conditioning system was worked with refrigeration modes, the evaporimeter of described system can reduce the temperature through wherein air, makes it be lower than dew point.In this case, steam will be condensate on the described evaporimeter.Certain device must be set so that this condensate liquid is handled.In the small-sized single unit type air conditioner such as room air conditioner, a kind of conventional method that condensate liquid is handled provides one and collects and discharge-channel being communicated with the condensate liquid that gets up between the indoor section of described air-conditioner and the outdoor section.

Content of the present invention

According to the present invention, a kind of air-conditioning unit is provided, it comprises an indoor section and an outdoor section, they are supported by a basal disc, and are separated by the dividing plate of basal disc formation part.Indoor section comprises an indoor fan and an evaporator coil.At work, described cold evaporimeter carries out condensation to coming from the airborne water that is cooled, described condensate liquid flow to the lower end of evaporimeter downwards, at this place condensate liquid is collected, and is provided with one and passes the flow channel of described dividing plate to outdoor section from indoor section.The lower end of described evaporimeter is supported by the area supported of a basic horizontal.One condensate liquid collect groove have one be positioned near the described horizontal supporting face, the parallel and first that is in fluid communication with it substantially with it.The described first that described condensate liquid is collected groove from the higher point of one end tilt to its other end than low spot.Described condensate liquid is collected groove and is had the second portion that is communicated with the described other end fluid of described first.Described second portion from a higher point that is communicated with described first fluid tilt to one be positioned at air-conditioner outdoor section than low spot.

Brief Description Of Drawings

In conjunction with the following drawings, the present invention may be better understood for those skilled persons in present technique field, and for them, purpose of the present invention and its advantage will become more clear.In each accompanying drawing:

Fig. 1 one has the stereogram of the room air conditioner of each feature of the present invention;

After Fig. 2 removes loam cake, preceding grill portion and other selected member get off, the stereogram of air-conditioner shown in Figure 1;

After Fig. 3 removes described upper shell and other member get off, the vertical view of air-conditioner shown in Figure 1;

Fig. 3 A is the enlarged drawing of the left front part of Fig. 3;

Fig. 3 B is the enlarged drawing of the right front part of Fig. 3;

After Fig. 4 removes some member get off, the stereogram of the broken section of air-conditioner shown in Figure 1;

After Fig. 5 removes a lot of members get off, the described lower house of air-conditioner shown in Figure 1 and the vertical view of basal disc; And

Fig. 6 is the cutaway view along Fig. 5 center line 6-6 intercepting.

Preferred embodiment of the present invention and industrial applicability

At first see also Fig. 1, air-conditioner 2 comprises an indoor section 4 and an outdoor section 6 substantially.Air-conditioning unit 2 comprises a rectangular basically housing 12, and described housing comprises housing parts 14, a upper case portion 16 and an indoor grille section part 18.Lower house part 14 is installed in the metal support dish 20, and whole room air conditioner is suitable for being positioned in the rectangular aperture on the within the walls outer or window still in a room that needs cooling, and makes indoor grille section part 18 face described room, as conventional.

Housing parts

12,14 and grid 18 preferably are made of plastics.Can be clear that from Fig. 2 to Fig. 6 it is one integrally molded and form on the basal disc 8 of bottom of lower house 14 with lower house 14 that whole air-conditioning unit 2 is bearing in.One vertically extending dividing plate 13 extends upward from described substrate, and forms an integral body with left side wall 10 and right side wall 11 respectively, and described dividing plate separates with outdoor 6 mutually with indoor 4.

Fig. 2 shows the air-conditioning unit of having removed after upper case portion 16 and the chamber grill portion 18 2.Equally, as conventional, described unit 2 comprises indoor cold-producing medium-air heat exchanger 22 (hereinafter being called " evaporator coil ") and an inside or an evaporator fan 24.Come from the air for the treatment of the space regulated by described system with the effect of evaporator fan 24, suck, and be passed in the evaporator coil 22 that cool off air at this place by the air inlet louvers 26 that are formed in the indoor grille section part 18.Through the air of cooling drawn then get back to will space by a scroll assembly 28 cooling in, described scroll assembly can make air pass an indoor adjusting air Exhaust assembly 30 that forms a part of grid 18.

Should also be noted in that scroll assembly 28 is only illustrated in Fig. 4.In the unit that is fully assembled, evaporator fan 24 is the inside that is positioned at described volute, so that above-mentioned air flows.In other accompanying drawing, described volute is removed, so that be clearly shown that the concrete structure of condensate collection system of the present invention.

Please continue to consult Fig. 2, as conventional, described unit also comprises: one outdoor refrigerant-air heat exchanger or coil pipe 32 (being called " condenser coil 32 " hereinafter), a condenser fan 34 and a compressor 36.At work, surrounding air is positioned at the top of

housing parts

14 and 16 and the venetian blind type air inlet 38 of side enters housing 12 by many.The air that enters air inlet 38 is pumped then by outdoor fan 34, and passes condenser coil 32 before leaving by each floss hole 40 in housing 12 back sides.Can the clearlyest see that from Fig. 2 evaporator fan 24 and condenser fan 34 are to drive from two ends that are installed in the single drive shaft of the common drive motor 42 in the Outboard Sections 6 of housing 12.

Now see also Fig. 3, Fig. 3 A and Fig. 3 B, there is shown the vertical view of evaporator coil 22, described evaporator coil is bearing in the front end 44 of substrate 8 of lower house part 14.Evaporator coil 22 comprises a left tube sheet 46 and a right tube sheet 48.As conventional, extend between the described tube sheet, supply cold-producing medium from wherein flowing through thereby form a continuous flow channel by the U font turning end 52 two row heat exchanger tubes 50 that interconnect.A plurality of vertically extending heat-exchange fin 54 is carried by each pipe, and is substantially perpendicular to ground and is parallel to

tube sheet

46,48 and extend.

Below in conjunction with Fig. 2 to Fig. 6 the supporting situation of evaporator coil 22 is described.Fig. 4, Fig. 5 and Fig. 6 show evaporator coil 22 and the described air-conditioning unit after a lot other member is removed, so that described supporting structure, condensate collection system and condensate discharge passage to be described.

Each

tube sheet

46 and 48 all has an elongated U-shaped cross-section, and has the

short leg

56,58 that extends to the left side as shown in FIG. respectively.At first please look at the supporting structure of left tube sheet 46 in conjunction with Fig. 3 A, a vertically extending supporting groove 60 is molded in the described substrate and the inside of the left wall 10 of lower house part 14 integratedly.Groove 60 comprises that one forms one and is arranged essentially parallel to the first 64 that evaporator coil 22 extends with left wall 10.One second portion 66 is perpendicular to first 64 and be positioned at the front portion of first 64, and one the 3rd weak point portion 68 extends to the right, and is arranged essentially parallel to evaporator coil 22.What extend out from the right side of the lower end of second portion 66 is short wall portion 70, and described short wall portion and the 3rd wall portion 68 separate the distance of the thickness of one section back leg 58 that is substantially equal to tube sheet 48.Therefore, the back leg 58 of tube sheet 48 is suitable for and 72 being meshed to back end of the 3rd trench portions 68, and is suitable for being contained in the interior volume between described end face 72 and the shortwall portion 70.

Now see also Fig. 3 B, the back leg 58 of right tube sheet 48 is suitable for and 74 is meshed to back end, and described end face 74 is formed by a vertically extending groove 76, and the groove 60 in the supporting structure of the cross section of described groove and left tube sheet 46 is basic identical.The groove 76 that is positioned at the right side is integrally molded with the described basal disc of lower house 14.Owing to have described left tube sheet, the back leg 58 of described right tube sheet is suitable for being meshed with the rear surface 72 of groove 60.But, different with described left tube sheet, the supporting structure of right tube sheet is vertically extendingly to be criss-cross part 78 substantially and to be arranged on a lateral position and a front and back position with one, described cross partly be suitable for back leg 58 to back end and the right side of right tube sheet 48 be meshed.

The further location of evaporator coil 22 is to be meshed with the foreleg 56 that the makes left tube sheet 46 right-hand member walls 86 interior with being molded into lower house 14 front portions to provide.With a kind of similar fashion, be molded into lower house 14 anterior interior left end walls and be suitable for being meshed with the right-hand member wall of right tube sheet 48.

As can be from Fig. 2 the clearest see, the lower end of the

tube sheet

46,48 of evaporator coil 22 by one be formed on lower house part 14 basal disc 8 the front end place condensate discharge dish 92 and support.Condensate discharge dish 92 is formed by horizontal surface 94 once, and described horizontal surface down is used for supporting the lower end and a vertically extending inner peripheral portion 96 of each tube sheet.Perimeter wall 96 is included in the outward extending short portion 98,100 of its left and right side and will lack the elongated portion 102 that

portion

98 and 100 interconnects.Should also be noted in that above-described tube

sheet abutment wall

86 and 88 all is formed in the elongated wall portion 102.

Can be clearly seen that from Fig. 4 and Fig. 5 the horizontal surface 94 of condensate discharge dish 92 is provided with a plurality of less direct bearing cushion blocks 104 at its left and right side, they just be positioned at left and

right tube sheet

46 and 48 the lower end under.When with described evaporator coil installing like that as described above, the lower end of

tube sheet

46,48 is meshed with cradle 104.As a result, the lower end of the heat-exchange fin 54 of tube sheet and described coil pipe is supported to such an extent that they and horizontal surface 94 are separated.

Horizontal surface 94 stops at a trailing edge 106 places, and described horizontal surface can provide a kind of transition of collecting groove 108 to condensate liquid.Condensate liquid is collected groove 108 its right-hand members and is formed by vertically extending tube sheet supporting groove 76 parts, be to form backward, and its left end is partly formed by vertically extending tube sheet supporting groove 60 by a vertically extending wall section 110 that is molded in the basal disc 8.

As can be clearly seen that among Fig. 2, Fig. 3 and Fig. 5, basal disc 8 also is provided with a narrow condensate liquid collecting zone 112 that is positioned at the right back of evaporator coil 22.Condensate liquid collecting zone 112 is that the part that is obliquely installed 114 by dividing plate 13 forms at its back, and its right side, left side are formed by vertically extending

wall portion

116 and 118 respectively.The residing height of the lower surface of condensate liquid collecting zone 112 is identical with the height of the horizontal surface 94 of the condensate discharge dish at its front end place basically, and rises to a higher level height in it and partition part 114 intersections.

As schematically showing among Fig. 2, the right side of refrigerant pipe 122 flash-pot coil pipes 22 begins, passes the openings 124 in the next door 13 and extends to described compressor and condenser coil in the outdoor section.Refrigerant pipe 122 be positioned at above-mentioned condensate liquid collecting zone 112 directly over.In the described air-conditioning unit course of work, especially under the condition of work of high humility, condensate liquid may be formed on the refrigerant pipe 122.These condensate liquids will drip from pipe, and can be captured in the condensate liquid collecting zone 112, and condensate liquid can flow to the horizontal surface 94 of condensate discharge dish 92 from this condensate liquid collecting zone, and flow into thus in the condensate liquid collection groove 108.

Now see also Fig. 4, Fig. 5 and Fig. 6, what can see is, in horizontal plane 94, be provided with a plurality of less tapered trenches 126, near the degree of depth of these tapered trenches outer rim of condensate discharge dish 92 is more shallow, 130 places, end at trailing edge 106 places, the degree of depth of these tapered trenches reaches depth capacity, and at described trailing edge place, these tapered trenches are fluid with condensate liquid collection groove 108 and are communicated with.These grooves help to make the condensate flow that comes from surface 94 and collecting zone 112 to groove 108.

Therefore, at air-conditioning unit duration of work, come from the condensate liquid of condensate liquid collecting zone 112 and will guide to condensate liquid by tapered trenches 126 downwards and collect groove 108 from the condensate liquid that evaporator coil 22 is advanced.Condensate liquid is collected groove 108 its right-hand members 132 tilt to its left end 134 from a high height a lower height.Like this, condensate liquid will under the gravity effect from right to left (when Fig. 2 to Fig. 5 is observed) flow.

Can be clear that from Fig. 3, Fig. 4 and Fig. 5 the left end that condensate liquid is collected groove 108 is communicated with at its left end with one second condensate liquid collection groove 136.It is to be formed by a pair of upright, the substantially parallel wall 138 that is formed in the basal disc 8 that second condensate liquid is collected groove 136.Groove 136 passes the opening 138 in the baffle wall, and extends in the outdoor section 6 along the path shown in the arrow 142.

From Fig. 3 and Fig. 5, can be clear that, groove 136 extends to the left side of a wall 144, described wall forms the part of an outdoor fan sidewall, up to a horizontal-extending zone 146 that is positioned at lower house part 14 back sides, the condenser coil 32 of air-conditioning unit is stated in described horizontal-extending area supporting residence.One vertically extending wall portion 148 defines the front portion of condenser bearing-surface 146, and extends the whole width that crosses the basal disc 8 except opening 145, and second condensate liquid is collected groove 136 and is communicated with condenser bearing-surface 146 fluids at this opening part.

Condenser bearing-surface 146 is provided with the rest pad 150 of a plurality of projectioies at its left and right end, and they help condenser coil 32 is bearing in a height that is slightly higher than condenser bearing-surface 146.The opening 152 of one centralized positioning is arranged in the rear wall of lower house part 14, thereby for the unnecessary condensate liquid that may collect on the condenser bearing-surface provides a discharge-channel, as conventional.

Collect the similar mode of groove 108 with a kind of and first condensate liquid, second condensate liquid is collected groove 136 and is begun to descend from a height identical with first condensate liquid collection groove left side, and reduce to a lower height at place, the back of housing 14, at the back side of housing 14, described second condensate liquid is collected groove and is connected with described condenser bearing-surface.

Can see the most clearly that from Fig. 6 groove 136 has one and forms step 154, downward within it in a position that just is positioned at fan sidewall 144 back.Step 154 can prevent that the condensate liquid or the rainwater that may collect in the outdoor section from backflow phenomenon taking place in groove 136.Therefore, should be understood that, pass that first condensate liquid is collected groove 108 and second condensate liquid is collected groove 136 to condenser bearing-surface 146 in that condensate liquid collecting zone 112 described condensate liquid collection channels beginning, that be in maximum height are downward-sloping continuously, thus can guarantee to make come from the air-conditioning unit condensate flow front portion, collected to the rear portion of described unit to handle.

With with described evaporator coil and condenser coil being installed in like that respectively on protruding

block

104 and 150 as described above, can further help to make condensate liquid unimpededly to flow to described unit rear portion and it is handled from the evaporator coil freedom.This set and tapered trenches 126 can be destroyed the surface tension of water, and can promote flowing freely of condensate liquid.

Claims

1. room air conditioner with an indoor section and an outdoor section, it is supported by a basal disc and is separated by a dividing plate, described indoor section comprises an indoor fan and an evaporator coil, described cold evaporimeter carries out condensation to coming from the airborne water that is cooled, described condensate liquid flow to the lower end of described evaporimeter downwards, at this place condensate liquid is collected, and be provided with one and pass described dividing plate to the flow channel of described outdoor section from described indoor section;

It is characterized in that described improvements comprise:

One substantially horizontal surface, the lower end that is used for supporting described evaporimeter;

One condensate liquid is collected groove, it have one be positioned near the described horizontal surface, the parallel and first that is in fluid communication with it substantially with it, the described first that described condensate liquid is collected groove from the higher point of one end tilt to its other end than low spot;

Described condensate liquid is collected groove and is had the second portion that is communicated with the described other end fluid of described first, described second portion from a higher point that is communicated with described first fluid tilt to one be positioned at described outdoor section than low spot.

2. device as claimed in claim 1 is characterized in that it also comprises:

Extend through the refrigerant pipe of described dividing plate from described evaporator coil to described outdoor section; And

Described housing comprises that also one is positioned at the condensate liquid collecting zone of described refrigerant pipe below, described condensate liquid collecting zone is communicated with the described end fluid that described condensate liquid is collected the described first of groove, near the higher point of described condensate liquid collecting zone described dividing plate tilt to one be communicated with the described first fluid of described condensate liquid collection groove than low spot.

3. device as claimed in claim 1, it is characterized in that, described basic horizontal is provided with a plurality of tapered trenches in the surface, each described groove from a higher point of described upper horizontal surface extend to one with described condensate liquid collect that the described first fluid of groove is communicated with than low spot.

4. device as claimed in claim 1, it is characterized in that, described condensate liquid is collected in the described second portion of groove has a step, and it can provide the transition than low spot after an a kind of higher point from the most close described indoor section is leaned on to the described outdoor section.

5. device as claimed in claim 1, it is characterized in that, be provided with at least one upright projection on the left and right end on described basic horizontal surface, described projection is suitable for being meshed with the lower end of described evaporator coil and it is supported and makes it to separate with described horizontal surface.