CN102914038B - Air conditioner indoor unit rear shell, mold thereof, air conditioner and air conditioner indoor unit - Google Patents

Air conditioner indoor unit rear shell, mold thereof, air conditioner and air conditioner indoor unit Download PDF

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Publication number
CN102914038B
CN102914038B CN201110224379.0A CN201110224379A CN102914038B CN 102914038 B CN102914038 B CN 102914038B CN 201110224379 A CN201110224379 A CN 201110224379A CN 102914038 B CN102914038 B CN 102914038B
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air conditioner
indoor apparatus
reinforcement
back cover
air
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CN102914038A (en
Inventor
张辉
陈绍林
高旭
熊军
杨检群
王平
刘明
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Abstract

The embodiment of the invention discloses a rear shell of an air conditioner indoor unit, a mold of the rear shell, an air conditioner and the air conditioner indoor unit, and is applied to the technical field of air conditioners. In the rear shell of the air-conditioning indoor unit, at least two reinforcing ribs are respectively arranged in the first direction and the second direction of the back plate of the air-conditioning indoor unit, so that the strength of the rear shell of the air-conditioning indoor unit is enhanced; and because there is the intersect at least two strengthening ribs of first direction and at least two strengthening ribs of second direction, wherein first direction and second direction are the angle that is greater than 0, like this when the electromagnetic noise that arouses by the motor in the air conditioner is propagated in every strengthening rib, the electromagnetic noise amplitude of two directions can offset correspondingly in the intersect department of strengthening rib, has weakened the electromagnetic noise radiation that arouses because of the motor in the air conditioner.

Description

Indoor apparatus of air conditioner back cover and mould, air-conditioner and indoor apparatus of air conditioner
Technical field
The present invention relates to air-conditioning technical field, particularly indoor apparatus of air conditioner back cover and mould, air-conditioner and indoor apparatus of air conditioner.
Background technology
Along with living standard improve, the functional requirement of people to air-conditioner is more and more higher, and when air-conditioner is run produce noise especially indoor set noisy environment requirement also more and more higher.The noise source complexity of general indoor apparatus of air conditioner is various, and the performance of such as motor, the position of air intake grid and indoor unit casing structure etc., wherein the electromagnetic noise of motor attracts much attention most.
The single mode by rubber damping pad had in more existing air-conditioners thoroughly cannot solve the electromagnetic noise problem of motor, and the design list of existing indoor apparatus of air conditioner is from structural strength, and does not consider electromagnetic noise aspect.In addition, when reducing costs, the phenomenon electromagnetic noises of motor that cause all in various degree such as thinning indoor apparatus of air conditioner back cover material increase, and affect the acoustical quality of air-conditioner.
As Fig. 1 shows the structural scheme of mechanism of existing a kind of indoor apparatus of air conditioner back cover, indoor apparatus of air conditioner backboard 1 ' is provided with and connects pore 2 ' and reinforcement 3 ', the first half of backboard 1 ' is provided with cross reinforcing 3 (1) ', vertical strengthening ribs 3 (2) ', lower portion is provided with square reinforcement 3 (3) ', this square reinforcement 3 (3) ' adjacent limit disconnects mutually, every one side of square reinforcement is all stretched out a reinforcement and is connected a sphere of movements for the elephants shape reinforcement, and this kind of indoor apparatus of air conditioner electromagnetic noise is larger.
Summary of the invention
The embodiment of the present invention provides indoor apparatus of air conditioner back cover and mould, air-conditioner and indoor apparatus of air conditioner, can weaken in air-conditioner because of electromagnetic noise radiation that motor causes.
The embodiment of the present invention provides a kind of indoor apparatus of air conditioner back cover, comprising: indoor apparatus of air conditioner backboard;
The first direction and second direction of described indoor apparatus of air conditioner backboard are respectively arranged with at least two reinforcements, and at least two reinforcements of at least two reinforcements of described first direction and second direction there is intersection point; Wherein said first direction and second direction are in the angle being greater than 0.
Further, the mounting position of motor of described indoor apparatus of air conditioner backboard is provided with the reinforcement be square, the limit that this square reinforcement is adjacent is connected, and the reinforcement that a reinforcement connects a sphere of movements for the elephants shape is stretched out on three limits of described square reinforcement respectively.
Further, the reinforcement of described sphere of movements for the elephants shape is made up of " annulus " shape reinforcement of its outside and two reinforcements intersected of its inside.
Further, the reinforcement that described mounting position of motor is arranged, has intersection point with at least one reinforcement of described first direction and/or second direction.
Further, the square reinforcement arranged at described mounting position of motor is connected with another three reinforcements, and the square reinforcement of described another three reinforcements and mounting position of motor is while combine and form "mouth" shape.
Further, described first direction is laterally, and second direction is longitudinally, be then 2 to 5 at the reinforcement of described second direction, be 3 to 6 at the reinforcement of described first direction.
Further, described cross reinforcing is near the edge of described indoor apparatus of air conditioner back cover.
Further, float within the scope of about 28 millimeters 0.5 millimeter of the width of described reinforcement, float within the scope of about 2 millimeters 0.5 millimeter of the height of described reinforcement.
The embodiment of the present invention provides a kind of mould of indoor apparatus of air conditioner back cover, for the manufacture of above-mentioned indoor apparatus of air conditioner back cover.
The embodiment of the present invention also provides a kind of indoor apparatus of air conditioner, and this indoor apparatus of air conditioner comprises above-mentioned indoor apparatus of air conditioner back cover.
The embodiment of the present invention also provides a kind of air-conditioner, comprises indoor apparatus of air conditioner and air-conditioner outdoor unit, and described indoor apparatus of air conditioner comprises above-mentioned indoor apparatus of air conditioner back cover.
In the indoor apparatus of air conditioner back cover of the embodiment of the present invention, owing to being respectively arranged with at least two reinforcements on the first direction and second direction of indoor apparatus of air conditioner backboard, make the intensity enhancing of indoor apparatus of air conditioner back cover; And owing to having intersection point at least two reinforcements of first direction and at least two reinforcements of second direction, wherein first direction and second direction are in the angle being greater than 0, like this when the electromagnetic noise caused by motor in air-conditioner is propagated in every bar reinforcement, the electromagnetic noise amplitude of both direction can in the corresponding counteracting of the point of intersection of reinforcement.
In addition, the superstructure due to indoor apparatus of air conditioner backboard is strengthened being conducive to stoping vibrational energy to structure upper transmission, and that avoids vibrational energy to go up largely on direction of vibration is exaggerated and the larger noise energy of radiation.Therefore the top of the indoor apparatus of air conditioner backboard of the embodiment of the present invention is provided with the reinforcement of first direction and second direction, strengthen rigidity and the intensity on back cover backboard top, vibrational energy is made to be transmitted to cabinet-type air conditioner chassis, and then consumption vibrational energy, reduce in air-conditioner because of electromagnetic noise radiation that motor causes.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural scheme of mechanism of existing indoor apparatus of air conditioner back cover;
Fig. 2 is the structural representation of a kind of indoor apparatus of air conditioner back cover that the embodiment of the present invention provides;
Fig. 3 is the structural representation of the another kind of indoor apparatus of air conditioner back cover that the embodiment of the present invention provides;
Fig. 4 is the reinforcement profile of indoor apparatus of air conditioner back cover in the embodiment of the present invention;
Fig. 5 is in voltage stabilizing electrical testing situation, the noise pattern that existing indoor apparatus of air conditioner records when low windscreen (L);
Fig. 6 is in voltage stabilizing electrical testing situation, the noise pattern that the indoor apparatus of air conditioner of the embodiment of the present invention records when low windscreen (L);
Fig. 7 is in voltage stabilizing electrical testing situation, the noise pattern that existing indoor apparatus of air conditioner records when middle windscreen (M);
Fig. 8 is in voltage stabilizing electrical testing situation, the noise pattern that the indoor apparatus of air conditioner of the embodiment of the present invention records when middle windscreen (M);
Fig. 9 is in voltage stabilizing electrical testing situation, the noise pattern that existing indoor apparatus of air conditioner records when high windscreen (H);
Figure 10 is in voltage stabilizing electrical testing situation, the noise pattern that the indoor apparatus of air conditioner of the embodiment of the present invention records when high windscreen (H);
Figure 11 is under civil power test case, the noise pattern that existing indoor apparatus of air conditioner records when low windscreen (L);
Figure 12 is under civil power test case, the noise pattern that the indoor apparatus of air conditioner of the embodiment of the present invention records when low windscreen (L);
Figure 13 is under civil power test case, the noise pattern that existing indoor apparatus of air conditioner records when middle windscreen (M);
Figure 14 is under civil power test case, the noise pattern that the indoor apparatus of air conditioner of the embodiment of the present invention records when middle windscreen (M);
Figure 15 is under civil power test case, the noise pattern that existing indoor apparatus of air conditioner records when high windscreen (H);
Figure 16 is under civil power test case, the noise pattern that the indoor apparatus of air conditioner of the embodiment of the present invention records when high windscreen (H).
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention provides a kind of indoor apparatus of air conditioner back cover, and structural representation as shown in Figure 2, comprising: indoor apparatus of air conditioner backboard 1, wherein:
Indoor apparatus of air conditioner backboard 1 is provided with and connects pore 2 and reinforcement 3, the first direction and second direction of indoor apparatus of air conditioner backboard 1 are respectively arranged with at least two reinforcements 3, and at least two of first direction reinforcements 3 (1) there is intersection point with at least two reinforcements 3 (2) of second direction.
Be appreciated that, above-mentioned first direction and second direction are in the angle being greater than 0, be 90 degree for first direction and second direction in Fig. 2, and have intersection point for arbitrary the reinforcement 3 (1) at first direction with arbitrary the reinforcement 3 (2) of second direction.
Visible, in the indoor apparatus of air conditioner back cover of the embodiment of the present invention, the first direction and second direction of indoor apparatus of air conditioner backboard 1 are respectively arranged with at least two reinforcements 3, make the intensity enhancing of indoor apparatus of air conditioner back cover; And owing to having intersection point at least two reinforcements 3 (1) of first direction and at least two reinforcements 3 (2) of second direction, wherein first direction and second direction are in the angle being greater than 0, like this when the electromagnetic noise caused by motor in air-conditioner is propagated in every bar reinforcement 3, the electromagnetic noise amplitude of both direction can in the corresponding counteracting of the point of intersection of reinforcement 3, reduces in air-conditioner because of electromagnetic noise radiation that motor causes.
Shown in figure 2 or 3, in a specific embodiment, the mounting position of motor of the indoor apparatus of air conditioner backboard 1 in indoor apparatus of air conditioner back cover is provided with the reinforcement 3 (3) be square, the limit that this square reinforcement is adjacent is connected, and the reinforcement that a reinforcement connects a sphere of movements for the elephants shape is stretched out respectively on three limits of square reinforcement 3 (3).Here mounting position of motor refers to after indoor apparatus of air conditioner back cover is installed to indoor apparatus of air conditioner, facing to the position of motor in indoor apparatus of air conditioner on back cover, because the noise in other places of noise ratio at this place is larger.Therefore, the reinforcement 3 (3) to this place's indoor apparatus of air conditioner backboard 1 is arranged is needed to strengthen, particularly mounting position of motor is provided with the reinforcement 3 (3) be square in the present embodiment, and stretches out the reinforcement that a reinforcement connects a sphere of movements for the elephants shape on three limits of square reinforcement 3 (3) respectively.The reinforcement of this sphere of movements for the elephants shape is made up of " annulus " shape reinforcement of its outside and two reinforcements intersected of its inside.
Shown in figure 3, in another specific embodiment, at the reinforcement 3 (3) that mounting position of motor is arranged, intersection point can be had with at least one reinforcement 3 (2) of at least one reinforcement 3 (1) of first direction and/or second direction.Particularly, a reinforcement can be stretched out in the reinforcement of sphere of movements for the elephants shape as shown in Figure 3 on limit and be connected with a cross reinforcing of close lower end, and waling all with being connected of square reinforcement 3 (3).And be not limited to the shape shown in Fig. 3 at the reinforcement of motor position process and the reinforcement of first direction and second direction, can also be other arbitrary shapes.
In addition, the square reinforcement 3 (3) arranged at mounting position of motor in the present embodiment is while can also be connected with another three reinforcements 3 (4), and the square reinforcement 3 (3) of these another three reinforcements 3 (4) and mounting position of motor combines and forms "mouth" shape.
In the indoor apparatus of air conditioner back cover of the invention described above embodiment, reinforcement 3 is the bossings on indoor apparatus of air conditioner backboard 1, be illustrated in figure 4 the profile of the reinforcement on indoor apparatus of air conditioner backboard 1, the width k of reinforcement 3 can float within the scope of 28 millimeters (mm) upper and lower 0.5 millimeter, and its height h can float within the scope of 0.5 millimeter about 2 millimeters.If first direction is transverse direction and horizontal direction, second direction is longitudinally, can be 2 to 5 at the reinforcement of second direction, can be 3 to 6 at the reinforcement of second direction, and cross reinforcing 3 (1) is as far as possible in the edge of energy near indoor apparatus of air conditioner back cover.At this moment can make weakening of the electromagnetic noise radiation that motor in air-conditioner causes more obvious.
In addition, superstructure due to air-conditioning internal machine back cover is strengthened being conducive to stoping vibrational energy to structure upper transmission, if test confirms that vibrational energy upwards transmits, due to the problem such as constraint of structure, top is equivalent to cantilever position, the amplification that vibrational energy will be gone up largely, thus the noise energy that radiation is larger.Therefore need rigidity and the intensity of strengthening indoor apparatus of air conditioner backboard top, make vibrational energy be transmitted to cabinet-type air conditioner chassis as far as possible, and then consume vibrational energy.Indoor apparatus of air conditioner back cover in the embodiment of the present invention had both enhanced rigidity and the intensity on backboard top, also enhance rigidity and the intensity of motor mounting part simultaneously, therefore the indoor apparatus of air conditioner back cover of the embodiment of the present invention makes vibrational energy be transmitted to chassis, and then consume vibrational energy, thus reduce electromagnetic noise.
Result of the test shows that carrying out reinforcement for weakness zone has good effect, and vibrational energy is decayed to some extent, and the noise energy given off obtains certain control, and city's electric noise test result is good; For backboard sheet metal component, by the mode of reinforcement not easily by the two frequency multiplication 100Hzs of the intrinsic frequency of backboard away from supply frequency, therefore need from the rigidity strengthening structure, intensity aspect is considered, make structure under the instigating being subject to same load, the response amplitude such as displacement, speed, acceleration produced reduces, and then solves the problem by vibrating outside radiated noise energy.
If adopt sound pick-up to existing indoor apparatus of air conditioner, and adopt the noise radiation of the regulation and control indoor set of indoor apparatus of air conditioner back cover in the embodiment of the present invention to test, sound pick-up is placed on 1m place before indoor apparatus of air conditioner, and sound pick-up is apart from ground level 1m; And be provided with voltage stabilizing electricity and civil power respectively to indoor apparatus of air conditioner, and indoor apparatus of air conditioner is tested respectively under the pattern of low wind shelves (L), middle windscreen (M) and high wind shelves (H), then:
(1) in voltage stabilizing electrical testing situation, the noise pattern that existing indoor apparatus of air conditioner records when low windscreen (L) is illustrated in figure 5; The noise pattern that the indoor apparatus of air conditioner being illustrated in figure 6 the embodiment of the present invention records when low windscreen (L);
Be illustrated in figure 7 the noise pattern that existing indoor apparatus of air conditioner records when middle windscreen (M); The noise pattern that the indoor apparatus of air conditioner being illustrated in figure 8 the embodiment of the present invention records when middle windscreen (M);
Be illustrated in figure 9 the noise pattern that existing indoor apparatus of air conditioner records when high windscreen (H); Be the noise pattern that the indoor apparatus of air conditioner of the embodiment of the present invention records when high windscreen (H) as shown in Figure 10;
Wherein the abscissa of the spectrogram of Fig. 5 to Figure 10 is frequency noise, and ordinate is noise amplitude.
Contrast then through spectrogram can draw following data and conclusion: the noise total value test number of two kinds of indoor apparatus of air conditioner is as shown in table 1 below, noise peak test data is as shown in table 2 below, then relative to existing indoor apparatus of air conditioner, can reduce after adopting the noise total value of the indoor apparatus of air conditioner of the indoor apparatus of air conditioner back cover of the embodiment of the present invention and peak value.Wherein in table 1, the noise total value of each windscreen is under corresponding windscreen, and in the noise pattern recorded, noise amplitude envelope line is to the area of reference axis.
Table 1
Wind shelves L (decibel dB) M(dB) H(dB)
The indoor apparatus of air conditioner of the embodiment of the present invention 32.7 35.6 39.3
Existing indoor apparatus of air conditioner 37.6 38.2 40.1
Table 2
(2) under civil power test case, the noise pattern recorded when low windscreen (L) for existing indoor apparatus of air conditioner as shown in figure 11; Be the noise pattern that the indoor apparatus of air conditioner of the embodiment of the present invention records when low windscreen (L) as shown in figure 12;
The noise pattern recorded when middle windscreen (M) for existing indoor apparatus of air conditioner as shown in figure 13; Be the noise pattern that the indoor apparatus of air conditioner of the embodiment of the present invention records when middle windscreen (M) as shown in figure 14;
The noise pattern recorded when high windscreen (H) for existing indoor apparatus of air conditioner as shown in figure 15; Be the noise pattern that the indoor apparatus of air conditioner of the embodiment of the present invention records when high windscreen (H) as shown in figure 16;
Wherein the abscissa of the spectrogram of Figure 11 to Figure 16 is frequency noise, and ordinate is noise amplitude.
Contrast then through spectrogram can draw following data and conclusion:
The noise total value test number of two kinds of indoor apparatus of air conditioner is as shown in table 3 below, noise peak test data is as shown in table 4 below, relative to existing indoor apparatus of air conditioner, can reduce after adopting the noise total value of the indoor apparatus of air conditioner of the indoor apparatus of air conditioner back cover of the embodiment of the present invention and peak value.Wherein in table 3, the noise total value of each windscreen is under corresponding windscreen, and in the noise pattern recorded, noise amplitude envelope line is to the area of reference axis.
Table 3
Wind shelves L (decibel dB) M(dB) H(dB)
The indoor apparatus of air conditioner of the embodiment of the present invention 33.7 36.5 39.3
Existing indoor apparatus of air conditioner 35.7 36.8 40.2
Table 4
As from the foregoing, the indoor apparatus of air conditioner back cover of the embodiment of the present invention solves the electromagnetic noise problem caused by motor under voltage stabilizing electricity, civil power test case.
The embodiment of the present invention also provides a kind of mould of indoor apparatus of air conditioner back cover, for the manufacture of indoor apparatus of air conditioner back cover as shown in figures 2 and 3, does not repeat at this.
The embodiment of the present invention also provides a kind of indoor apparatus of air conditioner, comprising indoor apparatus of air conditioner back cover as shown in figures 2 and 3, does not repeat at this.
The embodiment of the present invention also provides a kind of air-conditioner, comprises indoor apparatus of air conditioner and air-conditioner outdoor unit, and wherein indoor apparatus of air conditioner comprises indoor apparatus of air conditioner back cover as shown in figures 2 and 3, does not repeat at this.
The indoor apparatus of air conditioner the back cover above embodiment of the present invention provided and mould, air-conditioner and indoor apparatus of air conditioner, be described in detail, apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.

Claims (10)

1. an indoor apparatus of air conditioner back cover, is characterized in that, comprising: indoor apparatus of air conditioner backboard;
The first direction and second direction of described indoor apparatus of air conditioner backboard are respectively arranged with at least two reinforcements, and at least two reinforcements of at least two reinforcements of described first direction and second direction there is intersection point; Wherein said first direction and second direction are in the angle being greater than 0;
The mounting position of motor of described indoor apparatus of air conditioner backboard is provided with the reinforcement be square, and the limit that this square reinforcement is adjacent is connected, and the reinforcement that a reinforcement connects a sphere of movements for the elephants shape is stretched out on three limits of described square reinforcement respectively.
2. indoor apparatus of air conditioner back cover as claimed in claim 1, is characterized in that, the reinforcement of described sphere of movements for the elephants shape is made up of " annulus " shape reinforcement of its outside and two reinforcements intersected of its inside.
3. indoor apparatus of air conditioner back cover as claimed in claim 1, is characterized in that, the reinforcement of the reinforcement be square that described mounting position of motor is arranged and sphere of movements for the elephants shape, has intersection point with at least one reinforcement of described first direction and/or second direction.
4. indoor apparatus of air conditioner back cover as claimed in claim 1, it is characterized in that, the square reinforcement arranged at described mounting position of motor is while be connected with another three reinforcements, and the square reinforcement of described another three reinforcements and mounting position of motor combines and forms "mouth" shape.
5. the indoor apparatus of air conditioner back cover as described in any one of Claims 1-4, is characterized in that, described first direction is laterally, and second direction is longitudinally, be then 2 to 5 at the reinforcement of described second direction, be 3 to 6 at the reinforcement of described first direction.
6. indoor apparatus of air conditioner back cover as claimed in claim 5, it is characterized in that, described cross reinforcing is near the edge of described indoor apparatus of air conditioner back cover.
7. the indoor apparatus of air conditioner back cover as described in any one of Claims 1-4, is characterized in that, floats within the scope of about 28 millimeters 0.5 millimeter of the width of described reinforcement, floats within the scope of about 2 millimeters 0.5 millimeter of the height of described reinforcement.
8. a mould for indoor apparatus of air conditioner back cover, is characterized in that, the mould of described indoor apparatus of air conditioner back cover, for the manufacture of the indoor apparatus of air conditioner back cover as described in any one of claim 1 to 7.
9. an indoor apparatus of air conditioner, is characterized in that, comprises the indoor apparatus of air conditioner back cover as described in any one of claim 1 to 7.
10. an air-conditioner, is characterized in that, comprises indoor apparatus of air conditioner and air-conditioner outdoor unit, and described indoor apparatus of air conditioner comprises the indoor apparatus of air conditioner back cover as described in any one of claim 1 to 7.
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