CN114008390B

CN114008390B - Indoor unit of air conditioner

Info

Publication number: CN114008390B
Application number: CN201980097592.4A
Authority: CN
Inventors: 小泽哲朗; 镰田贤治; 长谷川巽
Original assignee: Toshiba Carrier Corp
Current assignee: Toshiba Carrier Corp
Priority date: 2019-06-21
Filing date: 2019-06-21
Publication date: 2023-04-28
Anticipated expiration: 2039-06-21
Also published as: CN114008390A; JPWO2020255380A1; WO2020255380A1; EP3988857A1; JP7209087B2; EP3988857A4

Abstract

An indoor unit of an air conditioner according to the present embodiment includes: a mounting plate fixed to an inner wall surface of the chamber; and an indoor unit mounted on the mounting plate, wherein the mounting plate is provided with a linear part protruding to the indoor side and extending linearly along the horizontal direction, and the indoor unit is provided with a clamping part clamping the linear part from the up-down direction.

Description

Indoor unit of air conditioner

Technical Field

Embodiments of the present invention relate to an indoor unit of an air conditioner.

Background

For example, patent document 1 discloses an indoor unit of an air conditioner in which an indoor unit constituting an indoor unit main body is mounted on a mounting plate fixed to an indoor wall surface. As disclosed in patent document 1, a linear portion protruding toward the indoor side and extending linearly in the horizontal direction is formed on the lower side of the mounting plate. Further, the linear portion is attached along the lower surface of the cover portion of the indoor unit, so that the lower surface of the cover portion can be prevented from being deformed or buckled, and the appearance can be enhanced.

Prior art literature

Patent literature

Patent document 1: japanese patent laid-open No. 5-312349

Disclosure of Invention

Technical problem to be solved by the invention

According to the structure of patent document 1, the outer cover portion of the indoor unit is in contact with the linear portion of the mounting plate only from below. Therefore, when an upward force is applied to the outer cover portion of the indoor unit, the linear portion can suppress the applied force. Therefore, the lower surface of the cover portion can be sufficiently restrained from being deformed or buckled. However, for example, when a downward force acts on the outer cover portion of the indoor unit due to the influence of a pipe or the like housed in the lower portion of the rear portion of the indoor unit, the linear portion cannot suppress the downward force. Therefore, the lower surface of the cover portion cannot be sufficiently restrained from being deformed or warped such as waves.

Accordingly, the present embodiment provides an indoor unit of an air conditioner that can suppress deformation or warpage of the indoor unit when an upward force is applied thereto, and can also suppress deformation or warpage of the indoor unit when a downward force is applied thereto, thereby increasing the appearance.

Technical proposal adopted for solving the technical problems

Drawings

Fig. 1 is a longitudinal cross-sectional side view schematically showing an example of the structure of an indoor unit of an air conditioner according to the present embodiment.

Fig. 2 is a perspective view schematically showing a structural example of the mounting plate according to the present embodiment.

Fig. 3 is a front view schematically showing a structural example of the mounting plate according to the present embodiment.

Fig. 4 is an enlarged view schematically showing a configuration example of the clamp portion and the peripheral portion thereof according to the present embodiment.

Fig. 5 is an enlarged view schematically showing a configuration example of the holding state maintaining unit and the peripheral portion thereof according to the present embodiment.

Detailed Description

Next, an embodiment of an indoor unit of an air conditioner will be described with reference to the drawings. The indoor unit 10 of the air conditioner illustrated in fig. 1 and an outdoor unit not shown provided outdoors together constitute the air conditioner, and includes a mounting plate 100 and an indoor unit 200. The mounting plate 100 is made of metal and is firmly fixed to the wall surface of the room by, for example, bolts or the like. The indoor unit 200 is attached to the front side, i.e., the indoor side, of the attachment plate 100 fixed to the indoor wall surface by, for example, screws or bolts.

Next, a configuration example of the indoor unit 200 will be described. The indoor unit 200 includes a unit main body 201 and a unit cover 202. The unit main body 201 constitutes a main body of the indoor unit 200, and is directly fixed to the front side of the mounting plate 100 by, for example, screws or bolts. The unit cover 202 covers the indoor side surface of the unit main body 201 fixed to the front side of the mounting plate 100, and in the present embodiment, the front, upper, lower, left side, and right side surfaces, and the unit cover 202 is configured as a substantially box-shaped cover.

An air inlet 203 is provided at an upper portion of the indoor unit 200, and an air outlet 204 is provided at a lower portion of the indoor unit 200. The indoor unit 200 further includes an air supply path 205 from the air inlet 203 to the air outlet 204. In the air blowing path 205, an air filter 206, a heat exchanger 207, a cross flow fan 208, a louver 209, and the like are provided from the upstream side, which is the air suction port 203, to the downstream side, which is the air discharge port 204.

The air filter 206 is used to capture foreign matter contained in the air sucked from the air suction port 203. The heat exchanger 207 exchanges heat with air sucked from the air suction port 203 to heat or cool the air. The cross flow fan 208 forms an air flow, and sucks in indoor air from the air suction port 203 and blows the air into the room from the air blowing port 204 through the air blowing path 205. The louver 209 adjusts the direction of the air blown out from the air outlet 204.

Next, a structural example of the mounting board 100 will be described. As illustrated in fig. 2 and 3, the mounting plate 100 has a substantially rectangular elongated plate shape. In this case, the mounting plate 100 has a shape with a longer dimension in the lateral direction than in the vertical direction in a state of being fixed to the inner wall surface of the chamber. The lower portions of the left and right end portions of the mounting plate 100 are provided with cut portions 101 through which piping and the like can be inserted. Further, a linear portion 102 is provided between the cutout portions 101 at both left and right ends at the lower portion of the mounting plate 100. The linear portion 102 includes a plurality (2 in the case of the present embodiment) of

sub-linear portions

102A, 102B.

Each of the

sub-linear portions

102A and 102B is protruded to the indoor side and linearly extends in the horizontal direction, i.e., the left-right direction. The

sub-linear portions

102A and 102B are bent to gradually incline downward from the lower side of the mounting plate 100 toward the indoor side. The distal ends of the

sub-linear portions

102A and 102B are folded back from above to behind.

The length LA of the sub-linear portion 102A is different from the length LB of the sub-linear portion 102B, and in the case of the present embodiment, the length LA of the sub-linear portion 102A is shorter than the length LB of the sub-linear portion 102B. The length LA of the sub-linear portion 102A and the length LB of the sub-linear portion 102B may be the same length. The total length of the length LA of the sub-linear portion 102A and the length LB of the sub-linear portion 102B may be at least 30% or more of the total length of the mounting plate 100 in the lateral direction or the total length of the indoor unit 10 in the lateral direction.

In the case of the present embodiment, the entire sub-linear portion 102A is positioned on the left side of the center line CL of the mounting plate 100 when viewed from the indoor side, i.e., the front side. On the other hand, when viewed from the indoor side, i.e., the front side, the left end side of the sub-linear portion 102B is positioned on the left side of the center line CL of the mounting plate 100, and the center portion other than the left end side and the right end side are positioned on the right side of the center line CL of the mounting plate 100. Therefore, the mounting plate 100 has a structure in which at least a portion of the linear portion 102 (in the case of the present embodiment, the left end portion of the sub-linear portion 102B) is provided at the center portion in the lateral direction thereof. The mounting plate 100 has a structure in which all of the sub-linear portions 102A and a part of the sub-linear portions 102B are provided on the left side of the central portion in the left-right direction, and the other parts of the sub-linear portions 102B are provided on the right side of the central portion in the left-right direction.

The mounting plate 100 includes a plurality (2 in the case of the present embodiment) of through-

hole portions

103A and 103B. The through-

holes

103A and 103B are each substantially elliptical long-strip-shaped extending in the longitudinal direction of the mounting plate 100. The length of the through hole 103A in the lateral direction is shorter than the length of the through hole 103B in the lateral direction. The length of the through-hole 103A in the lateral direction may be the same as the length of the through-hole 103B in the lateral direction. The vertical length of the through hole 103A is the same as the vertical length of the through hole 103B. The vertical length of the through-hole 103A may be different from the vertical length of the through-hole 103B.

In the case of the present embodiment, the opening area of the through hole 103A is smaller than the opening area of the through hole 103B. The opening area of the through hole 103A may be the same as the opening area of the through hole 103B. The through hole 103A is located above the sub-linear portion 102A. In the case of the present embodiment, the center portion in the left-right direction of the through hole 103A substantially or completely coincides with the center portion in the left-right direction of the sub-linear portion 102A. The through hole 103B is located above the sub-linear portion 102B. In the case of the present embodiment, the center portion of the through hole 103B is offset to the left by a predetermined amount with respect to the center portion of the sub-linear portion 102B, and the left end portion of the through hole 103A is located to the left of the left end portion of the sub-linear portion 102B. The amount of offset between the center portion of the through hole 103B and the center portion of the sub-linear portion 102B may be appropriately changed.

The mounting plate 100 further includes a plurality of (3 in the case of the present embodiment)

screw stoppers

104A, 104B, 104C. The distal ends of the

screw stopper portions

104A, 104B, 104C are bent downward, and the bent distal ends have screw holes. The unit main body 201 constituting the main body of the indoor unit 200 is firmly fixed by screws, not shown, through the

screw stoppers

104A, 104B, 104C.

The

screw stoppers

104A, 104B, 104C are disposed below the mounting plate 100, for example, as follows. That is, the

screw stopper portions

104A, 104B are provided separately at both end portions of the sub-linear portion 102A in the left-right direction.

Screw stopper portions

104B, 104C are provided separately at both end portions of the sub-linear portion 102B in the left-right direction. When the entire linear portion 102 is viewed, the

screw stopper portions

104A, 104C are provided separately at both end portions of the linear portion 102 in the left-right direction. The screw stopper 104B is provided in the middle portion of the linear portion 102 in the lateral direction, and in the present embodiment, is located between the sub-linear portion 102A and the sub-linear portion 102B. The screw stopper 104B may be located at a middle portion of the linear portion 102 in the lateral direction, for example, at a middle portion of the linear portion 102 in the lateral direction, or may be located at a left side or a right side of the middle portion of the linear portion 102 in the lateral direction.

The mounting plate 100 further includes a plurality (4 in the case of the present embodiment) of recessed

shape portions

105A, 105B, 105C, and 105D. The recessed

shape portions

105A, 105B, 105C, and 105D are arranged below the mounting plate 100, for example. That is, the

tapered portions

105A and 105B are provided at both lateral end portions of the sub-linear portion 102A. The

tapered portions

105C and 105D are provided at both lateral ends of the sub-linear portion 102B. The screw stopper 104A is provided on the outer side, i.e., the left side, of the retracted shape portion 105A. The screw stopper 104B is located between the retracted shape portion 105B and the retracted shape portion 105C. The screw stopper 104C is provided on the outer side, i.e., the right side, of the retracted shape portion 105D.

As illustrated in fig. 1, the indoor unit 200 having the above-described structure further includes a clip portion 300. Next, a structural example of the clip portion 300 will be described. As illustrated in fig. 4, the clamping portion 300 has a structure for clamping the linear portion 102 of the mounting plate 100 from the up-down direction, and in the case of the present embodiment, includes an upper clamping portion 301 and a lower clamping portion 302. The plurality of the clamping portions 300 are provided in the left-right direction of the indoor unit 200 at the lower portion of the rear portion of the indoor unit 200. The number of the clamping portions 300 may be appropriately changed. The intervals between the plurality of clamping portions 300 may be changed as appropriate.

The upper clamp 301 is an example of a first clamp, and in the present embodiment, is provided at a lower portion of the rear portion of the unit main body 201 and protrudes downward. In the case of the present embodiment, the upper clamp 301 is provided integrally with the rear portion of the member constituting the rear wall surface of the air outlet 204 in the unit main body portion 201 of the indoor unit 200. A linearly inclined portion 301a gradually rising from the front side to the rear side is provided at a lower portion of the rear portion of the upper clamp portion 301. The inclined portion 301a is not limited to a linear shape, and may be inclined in a curved shape, for example.

The lower clamp 302 is an example of a second clamp, and in the case of the present embodiment, the rear end portion of the lower surface of the unit cover 202 functions as the lower clamp 302. The upper and lower surfaces of the lower clamp 302 are both substantially horizontal planes.

In a state where the unit cover 202 is attached to the unit main body 201, the upper clamp 301 and the lower clamp 302 face each other in the vertical direction. A gap is formed between the upper clamping portion 301 and the lower clamping portion 302 by providing the inclined portion 301a. Thus, in a state where the indoor unit 200 is attached to the front side of the attachment plate 100, the linear portion 102 of the attachment plate 100 is sandwiched between the upper side sandwiching portion 301 and the lower side sandwiching portion 302. That is, the linear portion 102 of the mounting plate 100 is sandwiched by the sandwiching portion 300 of the indoor unit 200 from the up-down direction.

As illustrated in fig. 1, the indoor unit 200 further includes a clamp state maintaining unit 400. As illustrated in fig. 5, in the case of the present embodiment, the clamping state maintaining portion 400 is provided on the front side of the clamping portion 300. The holding state maintaining unit 400 is provided in plural at a lower portion of the rear portion of the indoor unit 200 in the left-right direction of the indoor unit 200. The number of the holding state maintaining units 400 may be changed as appropriate according to, for example, the number of the holding units 300. The intervals between the plurality of holding state maintaining portions 400 may be changed as appropriate according to, for example, the intervals between the plurality of holding portions 300. The clamping state maintaining portion 400 may be disposed near the clamping portion 300. The number and intervals of the holding state maintaining parts 400 may be the same as or different from those of the holding parts 300.

The clamp state maintaining portion 400 includes a claw hole portion 401 provided on the unit main body portion 201 side and a claw portion 402 provided on the unit housing portion 202 side. In the case of the present embodiment, the claw hole portion 401 is provided integrally with the rear portion of the member constituting the rear wall surface of the air outlet 204 in the unit main body portion 201 of the indoor unit 200. The claw hole portion 401 is a rectangular hole portion that opens on the front side in the front-rear direction. The claw 402 is provided integrally with the upper surface of the rear end portion of the lower surface of the unit housing 202. The claw 402 is a claw extending linearly rearward in the front-rear direction.

In a state where the unit housing portion 202 is attached to the unit main body portion 201, the claw portion 402 is inserted into the claw hole portion 401 from the front side to the rear side. Thus, the rear end portion of the lower surface of the unit housing portion 202, that is, the portion provided with the lower side clamping portion 302 is firmly fixed to the lower portion of the rear portion of the unit main body portion 201, that is, the portion provided with the upper side clamping portion 301. This can stably maintain the state in which the upper clamping portion 301 and the lower clamping portion 302 face each other in the vertical direction, and further stably maintain the state in which the linear portion 102 of the mounting plate 100 is clamped by the upper clamping portion 301 and the lower clamping portion 302 from the vertical direction.

According to the indoor unit 10 of the air conditioner of the present embodiment, the indoor unit 200 is configured to clamp the linear portion 102 of the mounting plate 100 from the up-down direction by the upper clamp 301 and the lower clamp 302 of the clamp 300. According to this configuration, when the indoor unit 200 is acted upon by an upward force, the lower clamp 302 abuts against the lower surface of the linear portion 102, and the upward force can be received by the linear portion 102. On the other hand, when the indoor unit 200 is acted on by a downward force, the upper clamping portion 301 abuts on the upper surface of the linear portion 102, and the downward force can be received by the linear portion 102. Accordingly, not only when the indoor unit 200 is acted upon by an upward force, but also when the indoor unit 200 is acted upon by a downward force, the deformation or warpage of the lower surface of the unit cover portion can be sufficiently suppressed, and the appearance can be enhanced.

According to the indoor unit 10, the linear portion 102 is provided at least in the center portion of the mounting plate 100 in the lateral direction. According to this structure, the deformation or warpage of the indoor unit 200 can be sufficiently suppressed in the central portion in the lateral direction of the indoor unit 200, which is easily deformed or warped on the lower surface of the unit cover 202.

Further, according to the indoor unit 10, the linear portions 102 are also provided on the left and right sides of the left-right direction central portion of the mounting plate 100. According to this structure, the occurrence of deformation or warpage can be sufficiently suppressed not only in the central portion in the left-right direction of the lower surface of the unit housing portion 202 but also in a wide range including the left and right sides thereof.

Further, according to the indoor unit 10, the mounting plate 100 is provided with

screw stoppers

104A, 104B, 104C at the center of the linear portion 102 and at the ends of the linear portion 102 in the lateral direction. According to this configuration, by tightening the screws at the plurality of

screw stoppers

104A, 104B, 104C, the indoor unit 200 can be mounted to the mounting plate 100 at the correct position. Accordingly, the position of the unit cover portion 200 on the mounting plate 100 can be made more accurate, and further, deformation or warpage of the appearance of the indoor unit 10 can be suppressed.

Further, according to the indoor unit 10, the mounting plate 100 is provided with the

tapered portions

105A, 105B, 105C, 105D at the left and right ends of the linear portion 102. With this configuration, the strength of the linear portion 102 and the vicinity thereof can be improved, and deformation or warpage of the linear portion 102 and, further, deformation or warpage of the appearance of the indoor unit 10 can be sufficiently suppressed.

According to the indoor unit 10, the holding state maintaining unit 400 is provided for maintaining the state in which the linear portion 102 is held by the upper holding portion 301 and the lower holding portion 302 from the up-down direction. With this configuration, the state in which the linear portion 102 of the mounting plate 100 is sandwiched by the sandwiching portion 300 from the up-down direction can be stably maintained, and deformation or warpage of the appearance of the indoor unit 200 can be further effectively suppressed.

Even in a configuration in which the upper clamp 301 is provided on the unit main body 201 side and the lower clamp 302 is provided on the unit cover 202 side, that is, in a configuration in which the upper clamp 301 and the lower clamp 302 are provided on different members, the clamp state maintaining unit 400 can stably maintain a state in which the upper clamp 301 and the lower clamp 302 face each other in the vertical direction, and further can stably maintain a state in which the linear portion 102 of the mounting plate 100 is clamped by the upper clamp 301 and the lower clamp 302. Thus, deformation or warpage of the appearance of the indoor unit 200 can be further effectively suppressed.

The present embodiment is not limited to the above-described embodiment, and various modifications and extensions can be made without departing from the gist thereof.

For example, the number of sub-linear portions constituting the linear portion 102 is not limited to 2, but may be 1, or may be 3 or more. The protruding length and the inclined angle of the linear portion 102 protruding from the lower side of the mounting plate 100 may be appropriately changed. The projecting length and the inclination angle of each of the plurality of sub-linear portions may be the same or different.

The linear portion 102 is preferably provided at least at the center portion of the mounting plate 100 in the lateral direction, but the indoor unit 200 may be configured so that the linear portion 102 is not provided at the center portion of the mounting plate 100 in the lateral direction. The linear portion 102 may be provided on at least one of a left side portion and a right side portion of the left-right direction center portion of the mounting plate 100.

The number of the screw stopper portions is not limited to 3, and may be 1 or 2, or may be 4 or more. The number of screw stops may be the same or different on the left and right sides of the mounting plate 100. The plurality of screw stops may be identical in shape and size or may be different.

The number of the recessed shape portions is not limited to 4, and may be 1, 2, or 3, or may be 5 or more. The number of the recessed shape portions may be the same or different in the left and right portions of the central portion of the mounting plate 100 in the left-right direction. The plurality of concave shape portions may have the same shape or different shape and size. The recessed shape portions may be provided at both ends of the linear portion 102 in the left-right direction, or may be provided only at one end side thereof.

The clamp state maintaining portion 400 may be configured to provide a claw hole portion 401 on the unit housing portion 202 side and a claw portion 402 on the unit main body portion 201 side. The clamped state maintaining portion is not limited to the configuration having the claw hole portion 401 and the claw portion 402, and may be applied to various configurations capable of maintaining the state in which the linear portion 102 is clamped by the upper clamping portion 301 and the lower clamping portion 302 from the up-down direction, such as a pin or a pin hole.

While the above description has been made of one embodiment of the present invention, this embodiment is given by way of example only and is not meant to limit the scope of the present invention. The novel embodiment described above may be implemented in various other modes, and various omissions, substitutions, and changes may be made without departing from the scope of the invention. The present embodiment and its modifications are included in the scope and spirit of the invention, and are also included in the invention described in the scope of the claims and their equivalents.

Claims

1. An indoor unit of an air conditioner, comprising:

a mounting plate fixed to an inner wall surface of the chamber; and

an indoor unit installed on the installation plate,

the mounting plate is provided with a linear part protruding to the indoor side and extending linearly along the horizontal direction,

the indoor unit comprises a clamping part for clamping the linear part from up and down direction and a unit main body part fixed on the mounting plate; and a unit cover part covering the indoor side surface of the unit main body part,

the clamping part includes:

a first clamping part arranged on the unit main body part; and

a second clamping part arranged on the unit housing part,

the apparatus further includes a clamping state maintaining unit configured to maintain a state in which the linear portion is clamped by the first clamping unit and the second clamping unit from the vertical direction.

2. The indoor unit of an air conditioner according to claim 1, wherein,

the linear portion is provided at least at a central portion in the left-right direction of the mounting plate.

3. The indoor unit of an air conditioner according to claim 2, wherein,

the linear portion is also provided on the left and right sides of the left-right direction central portion of the mounting plate.

4. An indoor unit of an air conditioner according to any one of claims 1 to 3,

the mounting plate is provided with a screw stop part for fastening the screw of the indoor unit,

the screw stopper is provided at a middle portion of the linear portion and at an end portion of the linear portion in a left-right direction.

5. An indoor unit of an air conditioner according to any one of claims 1 to 3,

the mounting plate includes a recessed shape portion at an end portion of the linear portion in a lateral direction.