KR20020006944A - heat-exchanger mounting structure for air conditioner - Google Patents

Abstract

PURPOSE: Mounting structure of a heat exchanger for an air conditioner is provided to assemble an outdoor heat exchanger simply and to reduce components necessary for mounting the heat exchanger by connecting the outdoor heat exchanger integrally with an outer case and a base fan. CONSTITUTION: A sidewall(31) is formed at the edge of a base fan(30), and plural guide slits(34,34') are formed on a rear sidewall(32). The guide slits are bent vertically to the rear sidewall. A screw hole(35) is punched on a side of the rear sidewall. An outdoor heat exchanger(40) is mounted at the rear of the base fan. A refrigerant tube(42) is bent several times in the outdoor heat exchanger. The refrigerant tube has plural radiating fins(43) to maximize the radiating area. End plates(44) are mounted at both ends of the outdoor heat exchanger to support both ends of the refrigerant tube. A couple of support legs(46,46') are formed on a fixing piece(45), and an inserting leg(47) is formed therebetween. The support legs are inserted into the rear sidewall, and the inserting leg is inserted to the outside of the rear sidewall between the guide slits. If the outer case is connected by screws, the outdoor heat exchanger is connected. Thereby, the outer case, the outdoor heat exchanger and the base fan are fixed integrally.

Description

Heat-exchanger mounting structure for air conditioner

The present invention relates to an air conditioner, and more particularly, to a mounting structure of a heat exchanger for heat exchange with an outdoor side in an air conditioner.

1 is an exploded perspective view showing a main configuration of an integrated air conditioner according to the prior art. Looking at the internal structure of the integrated air conditioner with reference to this, the base fan (1) forms the bottom of the air conditioner. The front grill 3 is installed on the indoor front surface of the base fan 1.

In the front grill 3, a suction part 3i, which is a passage through which air in the room is introduced, is formed at a lower side thereof, and an upper part of the front grill 3 has a discharge grill 3e for discharging the air heat-exchanged inside the air conditioner back into the room. Is formed. Although not shown in the drawings, a suction grill (not shown) is installed in the suction unit 3i, and a filter (not shown) is installed between the suction grill and the suction unit 3i.

An indoor heat exchanger 5 is installed inside the front grill 3, more precisely at the tip of the air guide 7 to be described below. The indoor heat exchanger (5) is for heat exchange between the air sucked through the suction unit (3i) and the working fluid of the heat exchange cycle, more precisely installed in the air guide (7) to be described below.

An air guide 7 is installed on the base fan 1 at the rear of the indoor heat exchanger 5. The air guide 7 serves to partition the air conditioner into the indoor side and the outdoor side as a whole. Therefore, the indoor side and the outdoor side are blocked by the air guide 7 to block the flow of air therebetween. The motor seat 8 is formed to be recessed from the outdoor side to the indoor side of the air guide 7.

A scroll 9 is installed inside the air guide 7. The scroll 9 has a flow guide surface 9g formed therein with a predetermined curvature from one side to the other side.

An orifice 11 is installed to correspond to the front surface of the scroll 9, that is, the indoor heat exchanger 5. The orifice 11 is perforated with an orifice hole 12 which guides the air flowing through the indoor heat exchanger 5 to the sirocco fan 13 which will be described below. A discharge guide 11e for guiding the air heat-exchanged with the discharge grill 3e is integrally formed at the upper end of the orifice 11.

Meanwhile, a sirocco fan 13 is installed inside the scroll 9 to allow indoor air to flow through the suction unit 3i, the indoor heat exchanger 5, and the orifice hole 12. The sirocco fan 13 sucks air through the orifice hole 12 and blows it in the centrifugal direction. The blown air is guided along the flow guide surface 9g to the discharge guide 11e. Flows.

The part described so far is the indoor side of the integrated air conditioner, and now describes the configuration of the outdoor side partitioned from the indoor side by the air guide 7.

As shown in FIG. 2, a motor 15 for rotating the sirocco fan 13 and a blower fan 17 to be described below is mounted on the motor seating part 8 of the air guide 7. The motor 15 protrudes in a direction in which the rotation shafts face each other. One of the rotating shafts extends through the air guide 7 to the center of the scroll 9 to rotate the sirocco fan 13. A plurality of fastening pieces 16 are formed on the outer circumferential surface of the motor 15, and fastened to the rear surface of the air guide 7 by screws 16 ′.

And the blower fan 17 is installed on the outdoor rotating shaft of the motor (15). The blower fan 17 serves to exchange heat by sucking outside air to the outdoor side of the air conditioner and passing the outdoor heat exchanger 19 to be described below. The blower fan 17 is provided with a ring 17r that connects the wing tip to splash the condensate into the outdoor heat exchanger 19.

Next, a shroud 18 for guiding the air flow formed by the blowing fan 17 is installed on the base fan 1. The shroud 18 is formed with a through hole 18 ′ communicating with the outdoor heat exchanger 19 side such that the blowing fan 17 is located.

The outdoor heat exchanger 19 is installed on the outdoor side of the base fan 1 so as to face the shroud 18. The outdoor heat exchanger 19 allows the air sucked from the outside and the working fluid of the heat exchange cycle to exchange heat. End plates 19 'are provided at both ends of the outdoor heat exchanger 19, respectively. As the outdoor heat exchanger 19 is well illustrated in FIG. 2, the lower end of the end plate 19 ′ is closely attached to one side of the rear end of the base fan 1 and fastened with a screw 19S. Although not shown in the drawings, the outdoor side is provided with a compressor, an expansion valve, and the like, which are components of an air conditioning cycle.

Finally, the outer case 20 shields the various parts forming the air conditioner as described above from the outside. The outcase 20 as described above constitutes the appearance of the air conditioner. And the outer case 20 is formed so as to shield the edge portion of the outdoor heat exchanger 19 from the rear, it is fastened to the base fan 1 with a screw 20S through the portion.

The integrated air conditioner having such a configuration is used in such a way that the part corresponding to the indoor side is installed in the space for air conditioning and the part corresponding to the outdoor side is outdoors.

However, the integrated air conditioner according to the prior art as described above has the following problems.

In order to install the outdoor heat exchanger 19 to the base fan 1, the end plates 19 'at both ends thereof are fastened using screws 19S. After assembling other parts, the outer case 20 is finally assembled. At this time, the screw 20S is fastened to fasten the rear end of the outer case 20 to the base pan 1 at a position adjacent to the position at which the screw 19S is fastened. Therefore, since the plurality of screws (19S, 20S) is fastened to the adjacent position of the base pan (1), a plurality of screw holes for him should be drilled, and also the assembly of the screws (19S, 20S) must be fastened respectively during assembly There is a problem that the workability of the work is poor.

In the installation of the outdoor heat exchanger 19, if the fastening of the screw 19S is not correct, the position of the outdoor heat exchanger 19 is displaced, and the outdoor heat exchanger 19 can be moved left and right during use. In particular, there is no configuration that can guide the installation position of the outdoor heat exchanger 19, and is fastened only by the screw 19S, so that the screw 19S is not fastened correctly, the fastening state of the outdoor heat exchanger 19 Will not be accurate.

Accordingly, an object of the present invention is to solve the problems of the prior art as described above, and to easily assemble the outdoor heat exchanger in a more accurate position.

1 is an exploded perspective view showing a main configuration of an air conditioner according to the prior art.

Figure 2 is a cross-sectional view showing the main portion of the heat exchanger mounting structure of the air conditioner according to the prior art.

Figure 3 is an exploded perspective view showing the configuration of a preferred embodiment of the heat exchanger mounting structure of the air conditioner according to the present invention.

Figure 4 is a sectional view showing the main portion of the embodiment of the present invention.

5 is an exploded perspective view showing another configuration of an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

30: base pan 31: side wall

32: rear wall 34,34 ': guide slit

35: screw hole 40: outdoor heat exchanger

42: refrigerant pipe 43: heat dissipation fin

44: end plate 45: insertion fixing piece

46,46 ': Support leg 47: Insertion leg

48: screwdriver

According to a feature of the present invention for achieving the object as described above, the present invention is a base fan which is installed various parts and forms the bottom of the air conditioner, and installed on one side end of the base fan to exchange heat with external air And a fixing part provided in the base fan and the heat exchanger to fix the heat exchanger and the heat exchanger by inserting the heat exchanger into the base pan.

The fixing part is provided at both ends of the base pan, and a pair of guide slits formed by bending one side of the base fan, respectively, and a pair of guide slits integrally provided at the heat exchanger and corresponding to the guide slits of the base fan from above. It is configured to include an insertion fixing piece that is inserted and part of which is located between the guide slit.

The fixing parts are provided at both ends of the base pan, and each of the recess inserts formed by bending one side of the base fan is integrally provided with the heat exchanger and inserted from the top at a position corresponding to the recess insert of the base fan. And a part of which includes an insertion fixing piece positioned inside the recessed insert.

A screw hole for fixing the outer case is further formed on the insertion fixing piece and the base pan corresponding thereto.

At least one side of the inner surface of the recess insert is formed in parallel with both end surfaces of the heat exchanger.

According to the heat exchanger mounting structure according to the present invention having such a configuration, there is an advantage that the mounting of the heat exchanger is simple and accurate, and does not flow during use.

Hereinafter, a preferred embodiment of a heat exchanger mounting structure of an air conditioner according to the present invention as described above will be described in detail with reference to the accompanying drawings. The same thing as that of the prior art will be described using the same reference numeral.

3 is an exploded perspective view showing the configuration of a preferred embodiment of the present invention, Figure 4 is a cross-sectional view of the embodiment shown in FIG.

As shown in these figures, side walls 31 of a predetermined height are formed surrounding the edges of the base pan 30 forming the bottom surface of the air conditioner. Guide slits 34 and 34 ′ are formed on the rear wall 32 formed at the rear end of the base pan 30 among the side walls 31.

The guide slits 34 and 34 'are formed at both ends of the rear wall 32, and more specifically, are formed at positions corresponding to both ends of the outdoor heat exchanger 40 to be described below. , 34 ') is bent vertically to the rear wall 32 by cutting one side of the rear wall (32).

A screw hole 35 into which a screw for fastening the outer case 20 is inserted is drilled in one side of the rear wall 32 which is lowered downward between the guide slits 34 and 34 '. Meanwhile, the rear wall 32 on which the guide slits 34 and 34 'are formed may be slightly recessed inward or protrude outward depending on the installation condition of the outer case 20.

Next, the outdoor heat exchanger 40 is installed at the rear end of the base fan 30. The outdoor heat exchanger (40) is bent in the transverse direction a plurality of refrigerant pipes (42) through which a refrigerant, which is a working fluid of a heat exchange cycle, is bent in the horizontal direction. Maximize. An end plate 44 supporting both ends of the refrigerant pipe 42, which is bent a plurality of times, is installed at both ends of the outdoor heat exchanger 40.

On the other hand, the lower end of the end plate 44 is formed with an insertion fixing piece 45 for fixing the outdoor heat exchanger (40). The insertion fixing piece 45 is formed to protrude in a direction perpendicular to the n-plate 44, that is, in both ends of the outdoor heat exchanger 40.

The insertion fixing piece 45 is inserted into the rear wall 32 of the base pan 30, and supporting legs 46 and 46 'are provided at both ends thereof downward. An insertion leg 47 is formed between the support legs 46 and 46 ′. Here, the support legs 46 and 46 'are fitted in close contact with the inside of the rear surface 32, and the insertion leg 47 is the rear wall 32 corresponding to the guide slits 34 and 34'. Is inserted into the outer surface. The structure in which the support legs 46 and 46 'and the insertion leg 47 are inserted into the rear wall 32 of the base pan 30 is shown in FIG.

On the other hand, Figure 5 shows another embodiment of the present invention. According to this, the rear wall 32 is formed with an insertion groove 36 extending from the top to the bottom. The insertion groove 36 is formed by recessing the rear side wall 32 into the base fan 30.

At this time, one side wall of the insertion groove 36 formed to be recessed to form the guide surface 38 as a plane. The end plate 44 side of the outdoor heat exchanger 40 is positioned in the base fan 30 corresponding to the inside of the guide surface 38.

And the end plate 44 of the outdoor heat exchanger 40 is provided with an insertion fixing piece 45 as described in the embodiment. At this time, the support legs 46, 46 'of the insertion fixing piece 45 is configured to be installed in a position corresponding to the rear surface of the insertion groove 36, the insertion leg 47 is the insertion groove 36 It is configured to be located inside of. Reference numeral 39 is a screw hole for fastening the outer case 20.

Hereinafter will be described the operation of the embodiments of the present invention having the configuration as described above. The operation will be described once based on the preferred embodiment of the present invention.

In assembling the air conditioner, the air guide 7 and its surroundings are assembled, and the outdoor heat exchanger 40 is assembled to the base fan 30. At this time, when the insertion fixing piece 45 is inserted into the rear wall 32 of the base fan 30, the assembly of the outdoor heat exchanger 40 is completed.

That is, the insertion leg 47 of the insertion fixing piece 45 is positioned between the guide slits 34 and 34 'of the rear wall 32, and the support legs 46 and 46' are positioned on the rear wall. The outdoor heat exchanger 40 is inserted from the upper part of the base fan 30 to the lower part so as to be located at the inner surface of the 32.

In this case, as shown in FIG. 4, the insertion fixing piece 45 is inserted into and fixed to the rear wall 32, and the left and right flow of the outdoor heat exchanger 40 is controlled by the guide slits 34 and 34 ′. ), And forward and backward flow of the outdoor heat exchanger (40) is prevented by cooperation between the support legs (46, 46 ') and the insertion leg (47).

Next, after covering the outer case 20, the screw is screwed through the screw holes (48, 35). In this case, the outdoor heat exchanger 40 is once again fastened by a screw that fastens the outer case 20. Accordingly, the outer case 20, the outdoor heat exchanger 40, and the base fan 30 are simultaneously fixed by the screws. At this time, the outer case 20 is configured to shield the edge portion of the outdoor heat exchanger 40 installed at the rear end of the air conditioner to a certain degree, and is fastened by the screw. In this case, the outer case 20 should be provided with a configuration for avoiding interference with the guide slits 34 and 34 '.

In another embodiment of the present invention, the insertion leg 47 is inserted into the insertion groove 36, and the insertion leg 47 is guided to the guide surface 38 while the left and right sides of the outdoor heat exchanger 40 are guided. The directional flow is prevented, and the front and rear flow is prevented by the cooperation of the insertion fixing piece 45 and the rear wall 32.

The outdoor heat exchanger mounting structure according to the present invention as described in detail above is fixed by inserting one side of the outdoor heat exchanger into the base fan and fastening the outer case, base fan, and outdoor heat exchanger into one by using screws for fastening the outer case. It was configured to be. Therefore, the fixing of the outdoor heat exchanger is relatively simple, and the parts for mounting are reduced.

In addition, since the position at which the outdoor heat exchanger is installed is automatically set by the configuration for fixing the outdoor heat exchanger, the outdoor heat exchanger can be installed at a more accurate position.

Claims (5)

A base fan having various parts installed thereon and forming the bottom of the air conditioner, A heat exchanger installed at one end of the base fan to exchange heat with external air; And a fixing part provided in the base pan and the heat exchanger to fix the heat exchanger by inserting the heat exchanger into the base pan. The method of claim 1, wherein the fixing portion is provided at both ends of the base fan, A pair of guide slits formed by bending one side of the base pan, respectively, The heat exchanger of the air conditioner is integrally provided with the heat exchanger and is inserted from the top in a position corresponding to the guide slit of the base fan and a part of the fixing piece positioned between the guide slit. Mounting structure. The method of claim 1, wherein the fixing portion is provided at both ends of the base fan, Recess inserts formed by bending one side of the base pan, respectively, The heat exchanger of the air conditioner is integrally provided with the heat exchanger, and includes an insertion fixing piece which is inserted from the top in a position corresponding to the recessed insertion portion of the base fan, and a part of which is positioned inside the recessed insertion portion. Mounting structure. The heat exchanger mounting structure of claim 2 or 3, wherein a screw hole for fixing the outer case is further formed on the insertion fixing piece and the base pan corresponding thereto. 4. The heat exchanger mounting structure of claim 3, wherein at least one side of the inner surface of the recess insertion portion is formed in parallel with both end surfaces of the heat exchanger.