JP2008151494A - Outdoor unit base plate and air conditioner including the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an outdoor unit base plate and an air conditioner including the outdoor unit base plate improving installation stability by increasing bonding power between the outdoor unit base plate and a refrigerant container part such as a compressor or an accumulator mounted in an indoor unit. <P>SOLUTION: The air conditioner comprises an outdoor unit casing; the refrigerant container provided inside the casing; a support base provided at a lower part of the refrigerant container part; a base plate provided at a lower part of the casing; and a support part projected upward from the base plate to support the refrigerant container part. The support part comprises a first support part separated from the support base and fastened to the support base by a special fastening member, and a second support part brought into contact with the support base to support the support base. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an outdoor unit base plate and an air conditioner including the outdoor unit base plate, and more specifically, a compressor, an accumulator provided inside the outdoor unit, or a refrigerant container part that receives a refrigerant, such as a refrigerant storage tank, and an outdoor unit. The present invention relates to an invention capable of increasing the coupling force with a base plate at the bottom of a machine.

  In general, an air conditioner is divided into an indoor unit and an outdoor unit. The indoor air is provided with an indoor heat exchanger and an indoor fan, and the outdoor unit includes an outdoor heat exchanger, an outdoor fan, a compressor and an accumulator, and A refrigerant storage tank and the like are provided.

  A base plate is provided on the bottom surface of the outdoor unit, and various devices inside the outdoor unit described above are provided on such a base plate. The base plate has an upper portion so that such a device can be installed. A support portion projecting upward from the base plate is provided. The structure of the support portion serves to reinforce the strength of the base plate itself, and the structure of the support portion is shown in detail in FIG.

  As shown in FIG. 1, a support base 3 is provided at a lower portion of a refrigerant container 1 such as a compressor, an accumulator, and a refrigerant tank, and a base plate 5 supports a bottom surface of the support base 3. First and second fastening holes 10 and 11 are provided in the peripheral portion of the support base 3 and the edge portion of the support portion 7 corresponding to the support portion 3 so as to be screw-fastened.

  Since the bottom surface of the support base 3 is fixed to the upper surface of the support portion 7 and the upper surface of the support portion 7 is formed flat, it is formed between the support portion 7 and the center of the lower surface of the support base 3. It can be seen that the supporting force formed between the supporting portion 7 and the peripheral portion of the lower surface of the supporting base 3 is substantially the same.

  However, conventionally, when the outdoor unit is moved with the support 7, the support base 3 and the screw 9 being fastened together, the vibrations continuously generated during the movement process carried by the vehicle or the train. As a result, torque (T) is generated with respect to the screw 9 and the screw 9 can be unwound, which causes a problem of damaging a structure that is vulnerable to impact, such as piping inside the outdoor unit. .

  The present invention is for solving the above-described problems, and is a support structure that can improve the installation stability of the refrigerant container part by increasing the fastening force of the refrigerant container part provided inside the outdoor unit. The purpose is to provide.

  The present invention for achieving such an object is provided in an outdoor unit casing, a refrigerant container part provided in the casing, a support provided in a lower part of the refrigerant container part, and a lower part of the casing. A base plate and a support portion that protrudes upward from the base plate and supports the refrigerant container portion, the support portion being spaced apart from the support base and fastened to the support base by a separate fastening member. An air conditioner comprising a first support and a second support that contacts the support and supports the support is provided.

  In addition, the fastening member is a screw, and a first fastening portion and a second fastening hole through which the screw passes are provided in a peripheral portion of the support base and the first support portion, respectively, and are spaced apart from each other by a certain distance. The second support part is screw-coupled and is provided so as to be in contact with a central part of the lower surface of the support base.

  The second support part may be formed to protrude higher than the first support part.

  The lower surface of the peripheral portion of the support base may be disposed higher than the lower surface of the central portion of the support base and spaced apart from the first support portion.

  The first support part and the second support part are spaced apart from each other.

  Further, the refrigerant container part includes a compressor and an accumulator connected to the compressor.

  A first support portion that protrudes upward from the base plate and is fastened by a fastening member in a state of being spaced apart from a support base of a refrigerant container provided inside the outdoor unit, and protrudes upward from the base plate; And a second support part that supports the refrigerant container part in contact with the lower surface of the support base of the refrigerant container part.

  The first support part may be formed higher than the height of the upper surface.

  The lower surface of the peripheral portion of the support base may be formed higher than the lower surface of the center portion of the support base.

  The first support part and the second support part may be formed to be spaced apart from each other and to be spaced apart from the first support part.

  According to the present invention, since the fastening force between the support portion and the fastening member is remarkably increased, even if torque is applied to the fastening member due to vibration generated during movement by a vehicle or the like, the resistance against such torque is increased. Power increases.

  Therefore, since the installation stability of heavy refrigerant containers such as compressors and accumulators is improved, the risk of movement of such refrigerant containers is reduced, and damage to vulnerable parts such as refrigerant pipes or Damage can be prevented.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

  FIG. 2 illustrates an outdoor unit of an air conditioner according to the present invention. The outdoor unit casing 20 includes an upper plate 21, a side plate 23, and a base plate 25, and is disposed inside the outdoor unit casing 20. The outdoor heat exchanger 33 and the blower fan 30 are provided, and the refrigerant container part 35 composed of the compressor 36 and the accumulator 37 is provided, but the refrigerant container part 35, the blower fan 30 and the outdoor fan are provided. The heat exchanger 33 is partitioned by a partition plate 26.

  The upper plate 21 is provided with a discharge port 22 for guiding air discharged to the outside by the blower fan 30, and a suction port 24 through which external air is sucked is provided in a part of the side plate 23. .

  The base plate 25 is formed with a support portion 40 to which the outdoor heat exchanger 33 and the refrigerant container portion 35 are fixed, and in particular, the support portion 40 to which the refrigerant container portion 35 is fixed and supported. Are in contact with the peripheral portions of the support bases 38, 39 provided in the refrigerant container portion 35 and the first support portion 41 fastened by a fastening member, and the bottom surfaces of the central portions of the support bases 38, 39. And a second support portion 42 for supporting the.

  Here, the fastening member is preferably composed of a screw 45.

  On the other hand, the reason why the first support part 41 and the second support part 42 are separately provided is that the support bases 38 and 39 and the first support part 41 are fastened by a screw 45 as a fastening member. This is because the second support portion 42 slightly lifts the center of the lower surface of the support bases 38 and 39 to increase the fastening force between the peripheral portions of the support bases 38 and 39 and the first support portion 41. is there.

  FIG. 3 is a side sectional view showing that the refrigerant container portion 35 and the support bases 38 and 39 are fixed to the first and second support portions 41 and 42, and the height of the second support portion 42 is the height of the second support portion 42. It is formed higher than the height of the first support portion 41, and the difference in height is displayed as G.

  In this state, if the support bases 38 and 39 are placed on the first and second support parts 41 and 42, the lower surface of the center part of the support bases 38 and 39 comes into contact with the second support part 42. In other words, the lower surfaces of the peripheral parts of the support bases 38 and 39 are spaced apart from the first support part 41 by a certain distance (G). However, the first support part 41 and the support bases 38, Since the first fastening holes 38a, 39a and the second fastening holes 41a are provided in the peripheral portion of 39, the first support portion 41 is provided by the screw 45 penetrating the first and second fastening holes 38a, 39a, 41a. The support bases 38 and 39 are fastened.

  Here, a separate fastening member such as a nut is not required at the end of the screw 45, but this is because the size of the first fastening hole 41a formed in the first support part 41 is initially set. Since the screw 45 is formed to be smaller than the diameter of the screw 45, when the screw 45 passes through the second fastening holes 38a and 39a and is inserted into the first fastening hole 41a, the inner diameter of the first fastening hole 41a is increased. However, this is because the first fastening hole 41a and the screw 45 are coupled.

  With the second support part 42 supporting the central part of the support bases 38 and 39, a constant distance is maintained between the first support part 41 and the peripheral parts of the support bases 38 and 39. In addition, when these are fastened by the screw 45, surface contact is made between the support bases 38 and 39 and the second support part 42 on the periphery of the support bases 38 and 39 by the fastening force of the screw 45. A moment centering on the portion is generated, and the direction of the moment is indicated by a thick arrow illustrated on the lower surface of the peripheral portion of the support base.

  However, since the peripheral portions of the support bases 38 and 39 are made of an iron plate that is much thicker than the thickness of the first support portion 41, almost no deformation occurs. Rather, the first support portion is rotated by the rotation of the screw 45. A portion around the first fastening hole 41a of 41 slightly protrudes upward.

  Due to such deformation, the fastening force between the first fastening hole 41a and the screw 45 increases, and the fastening of the screw 45 is released even if a certain degree of torque (T ′) due to vibration is applied to the screw 45. Can be prevented.

  FIG. 4 shows another embodiment of the present invention, wherein the height of the second support part 42 is equal to or lower than the height of the first support part 41. The first support portion 41 is separated from the lower surface of the peripheral portion of the support bases 38, 39, and the second support portion 42 is in surface contact with the lower surface of the central portion of the support bases 38, 39. The height of the lower surface of the peripheral portion is formed higher than the height of the lower surface of the central portion.

  Such a difference in height is expressed as G ″, but with such an arrangement, the fastening force between the first support portion 41 and the screw 45 can be increased by the mechanism as in the first embodiment. In the second embodiment, even if a certain degree of torque (T ″) due to the vibration of the outdoor unit generated by the external force is applied to the screw 45, the screw 45 cannot be fastened.

  FIG. 5a shows the measurement of the unwinding torque in the compressor which is one of the refrigerant container parts. Here, the unwinding torque is necessary for releasing the fastening of the fastening hole and the screw. Is the minimum torque.

  When four support portions are formed in one compressor and a fastening hole is provided in each support portion, the average value of the conventional melting torque is 59.5 kgf · cm. An average value of .75 kgf · cm was calculated, and the average melting torque in the compressor increased by about 13%.

  FIG. 5b shows data obtained by measuring the unwinding torque in the accumulator. When there are four fastening holes, the conventional technique is compared with the unraveling torque value in the present invention. Although 25 kgf · cm was shown, in the case of the present invention, a melting torque of 65.5 kgf · cm was measured, and it can be seen that it increased by about 8.7%.

It is side sectional drawing which shows the support part by a prior art. It is a separation perspective view of an outdoor unit according to the present invention. It is a sectional side view which shows 1st Embodiment of this invention. It is a sectional side view which shows 2nd Embodiment of this invention. It is the comparison table | surface which measured the melting torque by a prior art and this invention. It is the comparison table | surface which measured the melting torque by a prior art and this invention.

Explanation of symbols

25 Base plate 35 Refrigerant containers 38, 39 Support base 41 First support portion 42 Second support portion 45 Screw

Claims (10)

An outdoor unit casing;
A refrigerant container provided inside the casing;
A support provided at a lower portion of the refrigerant container,
A base plate provided at a lower portion of the casing;
A support part that protrudes upward from the base plate and supports the refrigerant container part;
Including
The support part is spaced apart from the support base, and a first support part fastened to the support base by a separate fastening member;
A second support part that contacts the support and supports the support;
The air conditioner characterized by including. The fastening member comprises a screw;
In the peripheral part of the support base and the first support part, there are provided first and second fastening holes through which the screws pass, respectively, and are screw-coupled in a state of being spaced apart from each other by a certain distance,
The air conditioner according to claim 1, wherein the second support part is provided so as to come into contact with a center part of a lower surface of the support base.   The air conditioner according to claim 2, wherein the second support part is formed to protrude higher than the first support part.   3. The air conditioner according to claim 2, wherein a lower surface of a peripheral portion of the support base is formed to be higher than a lower surface of a central portion of the support base and is spaced apart from the first support portion. .   The air conditioner according to claim 1, wherein the first support part and the second support part are spaced apart from each other.   The air conditioner according to claim 1, wherein the refrigerant container part includes a compressor and an accumulator coupled to the compressor. In the base plate for outdoor unit,
A first support portion protruding upward from the base plate and fastened by a fastening member in a state of being spaced apart from a support base of a refrigerant container portion provided inside the outdoor unit;
A second support part protruding upward from the base plate and contacting the lower surface of the support base of the refrigerant container part to support the refrigerant container part;
The base plate for outdoor units characterized by including. The base plate for an outdoor unit according to claim 7, wherein the base plate is formed higher than a height of an upper surface of the first support part.   The base plate for an outdoor unit according to claim 7, wherein a lower surface of a peripheral portion of the support base is formed higher than a lower surface of a central portion of the support base.   The base plate for an outdoor unit according to claim 7, wherein the first support part and the second support part are formed to be spaced apart from each other and to be spaced apart from the first support part.

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