CN114008390A

CN114008390A - Indoor unit of air conditioner

Info

Publication number: CN114008390A
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: 2022-02-01
Anticipated expiration: 2039-06-21
Also published as: EP3988857A4; CN114008390B; JP7209087B2; EP3988857A1; WO2020255380A1; JPWO2020255380A1

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 attached to the attachment plate, the attachment plate including a linear portion that protrudes toward an indoor side and linearly extends in a horizontal direction, the indoor unit including a clamp portion that vertically clamps the linear portion.

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, as disclosed in patent document 1, an indoor unit of an air conditioner has a structure in which an indoor unit constituting an indoor unit main body is attached to an attachment plate fixed to an indoor wall surface. As disclosed in patent document 1, a linear portion that protrudes toward the indoor side and linearly extends in the horizontal direction is formed on the lower side of the attachment plate. Further, the linear portion is attached along the lower surface of the outer cover portion of the indoor unit, so that the lower surface of the outer cover portion can be prevented from being warped such as deformed or wavy, and the appearance can be enhanced.

Documents of the prior art

Patent document

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 configured to contact only the linear portion of the attachment plate from below. Therefore, when an upward force is applied to the outer cover of the indoor unit, the linear portion can suppress the applied force. Therefore, the lower surface of the cover portion can be sufficiently suppressed from being warped such as deformed or waved. However, for example, when a downward force is applied to the outer cover portion of the indoor unit due to the influence of piping or the like stored in the lower portion of the rear portion of the indoor unit, the linear portion cannot suppress the applied force. Therefore, the lower surface of the cover portion cannot be sufficiently suppressed from warping such as deformation and waves.

Therefore, 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 to the indoor unit, and can suppress deformation or warpage of the indoor unit when a downward force is applied to the indoor unit, thereby enhancing the appearance.

Technical scheme for solving technical problem

Drawings

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

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

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

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

Fig. 5 is an enlarged view schematically showing a configuration example of the sandwiched state maintaining portion and its peripheral portion 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 constitutes an air conditioner together with an outdoor unit, not shown, installed outdoors, and includes an attachment plate 100 and an indoor unit 200. The mounting plate 100 is made of metal and is firmly fixed to a wall surface in a room by, for example, bolts or the like. The indoor unit 200 is attached to the front surface side, i.e., the indoor side, of the attachment plate 100 fixed to the indoor wall surface by screws, bolts, or the like.

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 body 201 constitutes the body of the indoor unit 200, and is directly fixed to the front surface side of the attachment plate 100 by, for example, screws, bolts, or the like. The unit cover portion 202 covers an indoor side surface of the unit main body portion 201 fixed to the front surface side of the attachment plate 100, i.e., a front surface, an upper surface, a lower surface, a left side surface, and a right side surface in the present embodiment, and the unit cover portion 202 is configured as a substantially box-shaped cover portion.

An air inlet 203 is provided in the upper part of the indoor unit 200, and an air outlet 204 is provided in the lower part of the indoor unit 200. The indoor unit 200 also has an air flow path 205 extending from the air inlet 203 to the air outlet 204. In the air flow path 205, an air filter 206, a heat exchanger 207, a cross-flow fan 208, louvers 209, and the like are provided from the upstream side, which is the air inlet 203 side, to the downstream side, which is the air outlet 204 side.

The air filter 206 is used to capture foreign substances contained in the air sucked from the air suction port 203. The heat exchanger 207 exchanges heat with the air sucked from the air suction port 203, and heats or cools the air. The cross-flow fan 208 forms an air flow, 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 plate 100 will be described. As illustrated in fig. 2 and 3, the mounting plate 100 has a substantially rectangular long plate shape. In this case, the mounting plate 100 has a shape having a longer dimension in the horizontal direction than in the vertical direction in a state of being fixed to the indoor wall surface. The mounting plate 100 has notches 101 at the lower portions of the left and right ends thereof, through which pipes and the like can be inserted. Further, a linear portion 102 is provided at a lower portion of the mounting plate 100 between the notches 101 at both left and right ends. The linear portion 102 includes a plurality of (2 in the present embodiment) sub

linear portions

102A and 102B.

Each of these sub

linear portions

102A and 102B is projected toward 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 in a shape gradually declining and inclining from the lower side of the mounting plate 100 toward the indoor side. The front end portions 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 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. 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% of the total length of the attachment plate 100 in the left-right direction or the total length of the indoor unit 10 in the left-right direction.

In the present embodiment, the entire sub linear portion 102A is located 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 straight portion 102B is positioned on the left side of the center line CL of the mounting plate 100, and the center portion and the right end side other than the left 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 part of the linear portion 102 (the left end portion of the sub-linear portion 102B in the case of the present embodiment) is provided at the center portion in the left-right direction. The mounting plate 100 is provided with all of the sub-linear portions 102A and a part of the sub-linear portions 102B on the left side of the center portion in the left-right direction, and with the other part of the sub-linear portions 102B on the right side of the center portion in the left-right direction.

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

holes

103A and 103B. The through

holes

103A and 103B are both substantially elliptical elongated shapes extending in the longitudinal direction of the attachment plate 100. The length of the through hole 103A in the left-right direction is shorter than the length of the through hole 103B in the left-right direction. The length of the through hole 103A in the left-right direction may be the same as the length of the through hole 103B in the left-right 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 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 and the opening area of the through hole 103B may be the same. The through hole 103A is located above the sub linear portion 102A. In the present embodiment, the center in the left-right direction of the through hole 103A substantially or completely coincides with the center 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 present embodiment, the center of the through hole 103B is shifted to the left of the center of the sub-linear portion 102B by a predetermined amount, and the left end of the through hole 103A is located to the left of the left end of the sub-linear portion 102B. The offset between the center of the through hole 103B and the center of the sub linear portion 102B may be changed as appropriate.

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

screw stoppers

104A, 104B, and 104C. The front end portions of the

screw stoppers

104A, 104B, and 104C are bent downward, and the bent front end portions are provided with screw holes. The unit body 201 constituting the body of the indoor unit 200 is firmly fixed by screws, not shown, via the

screw stoppers

104A, 104B, and 104C.

Screw stoppers

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

screw stoppers

104A and 104B are provided separately at both ends in the left-right direction of the sub linear portion 102A. The

screw stoppers

104B and 104C are provided separately at both ends in the left-right direction of the sub linear portion 102B. When the linear portion 102 is viewed as a whole, the

screw stoppers

104A and 104C are provided separately at both ends in the left-right direction of the linear portion 102. The screw stopper 104B is provided at a left-right direction intermediate portion of the linear portion 102, 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 the center of the linear portion 102 in the left-right direction, or may be located on the left or right side of the center of the linear portion 102 in the left-right direction, for example, if it is located at the center of the linear portion 102 in the left-right direction.

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

shape portions

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

shape portions

105A, 105B, 105C, and 105D are disposed below the mounting plate 100, for example, as follows. That is, the retracted

portions

105A and 105B are provided separately at both ends in the left-right direction of the sub-linear portion 102A. The

depressed shape portions

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

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

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

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

In the state where the unit cover 202 is attached to the unit body 201, the upper holder 301 and the lower holder 302 face each other in the vertical direction. The upper clamping portion 301 and the lower clamping portion 302 form a gap therebetween by providing the inclined portion 301 a. 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 clamping portion 301 and the lower clamping portion 302. That is, the linear portion 102 of the attachment plate 100 is sandwiched in the vertical direction by the sandwiching portion 300 of the indoor unit 200.

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

The clamped state maintaining unit 400 includes claw holes 401 provided on the unit body 201 side and claw portions 402 provided on the unit cover 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 401 is a rectangular hole having a front side opening in the front-rear direction. The claw portion 402 is provided integrally with the upper surface of the rear end portion of the lower surface of the unit housing portion 202. The claw portion 402 is a claw portion linearly extending rearward in the front-rear direction.

In a state where the unit cover 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. Accordingly, the rear end portion of the lower surface of the unit cover 202, i.e., the portion provided with the lower side holding portion 302, is firmly fixed to the lower portion of the rear portion of the unit main body 201, i.e., the portion provided with the upper side holding 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, 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 in the vertical direction.

According to the indoor unit 10 of an air conditioner of the present embodiment, the indoor unit 200 is configured to vertically sandwich the linear portion 102 of the attachment plate 100 by the upper clamping portion 301 and the lower clamping portion 302 of the clamping portion 300. According to this configuration, when an upward force is applied to the indoor unit 200, the lower clamping portion 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 a downward force is applied to the indoor unit 200, the upper clamping portion 301 abuts against the upper surface of the linear portion 102, and the downward force can be received by the linear portion 102. Accordingly, not only when a force in the upward direction is applied to the indoor unit 200, but also when a force in the downward direction is applied to the indoor unit 200, 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 in the left-right direction of the attachment plate 100. According to this configuration, the deformation or warpage of the lower surface of the unit cover portion 202 can be sufficiently suppressed in the center portion in the left-right direction of the indoor unit 200, where the deformation or warpage is likely to occur.

In addition, according to the indoor unit 10, the linear portions 102 are also provided on the left and right sides of the center portion of the attachment plate 100 in the left-right direction. With this configuration, not only the center portion in the left-right direction of the lower surface of the unit cover portion 202 but also the left and right sides thereof over a wide range can be sufficiently suppressed from being deformed or warped.

In addition, according to the indoor unit 10, the attachment plate 100 is provided with the

screw stoppers

104A, 104B, and 104C at the center of the linear portion 102 and at the ends of the linear portion 102 in the left-right direction in a dispersed manner. With this configuration, the indoor unit 200 can be mounted on the mounting plate 100 at the correct position by tightening the screws at the plurality of

screw stoppers

104A, 104B, and 104C. Accordingly, the position of the unit cover 200 on the attachment plate 100 can be further accurately determined, and the deformation or warpage of the appearance of the indoor unit 10 can be further suppressed.

In addition, according to the indoor unit 10, the attachment plate 100 is provided with the recessed

portions

105A, 105B, 105C, and 105D at the left and right ends of the linear portion 102 in a dispersed manner. According to this configuration, the strength of the linear portion 102 and the portion in the vicinity thereof can be increased, deformation or warpage of the linear portion 102 can be sufficiently suppressed, and further deformation or warpage of the appearance of the indoor unit 10 can be sufficiently suppressed.

The indoor unit 10 includes a clamping state maintaining unit 400 for maintaining the state in which the linear portion 102 is clamped between the upper clamping unit 301 and the lower clamping unit 302 in the vertical direction. According to this configuration, the state in which the linear portion 102 of the attachment plate 100 is sandwiched by the sandwiching portion 300 from the vertical direction can be stably maintained, and the deformation or warpage of the appearance of the indoor unit 200 can be more effectively suppressed.

Even in the configuration in which the upper clamping portion 301 is provided on the unit body 201 side and the lower clamping portion 302 is provided on the unit cover 202 side, that is, the configuration in which the upper clamping portion 301 and the lower clamping portion 302 are provided on separate members, the clamping state maintaining portion 400 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, the state in which the linear portion 102 of the mounting plate 100 is clamped between the upper clamping portion 301 and the lower clamping portion 302. Therefore, the 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 one embodiment, and various modifications and extensions may be made without departing from the scope of the present embodiment.

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

The linear portions 102 are preferably provided at least in the center portion in the left-right direction of the attachment plate 100, but the indoor unit 200 may be configured such that the linear portions 102 are not provided in the center portion in the left-right direction of the attachment plate 100. The linear portion 102 may be provided at least one of a left side portion and a right side portion of the left-right direction central portion of the mounting plate 100.

The number of the screw stoppers 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 stoppers may be identical or different in shape and size.

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

The clamped state maintaining unit 400 may have claw holes 401 on the unit cover 202 side and claws 402 on the unit main body 201 side. The clamped state maintaining portion is not limited to the configuration including the claw hole portion 401 and the claw portion 402, and may be applied to various configurations such as a pin or a pin hole that can maintain the state in which the linear portion 102 is clamped in the vertical direction by the upper clamping portion 301 and the lower clamping portion 302.

While one embodiment of the present invention has been described above, the embodiment is given by way of example only and is not intended to limit the scope of the present invention. The novel embodiment can be implemented in other various forms, and various omissions, substitutions, and changes can be made without departing from the spirit of the invention. The present embodiment and its modifications are included in the scope and gist of the invention, and are also included in the invention described in the scope of claims and the equivalent scope thereof.

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 which protrudes towards the indoor side and extends linearly along the horizontal direction,

the indoor unit includes a clamping portion that vertically clamps the linear portion.

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

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

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

the linear portions are also provided on the left and right sides of the left-right direction center 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 stopper for fastening the indoor unit with a screw,

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

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

the mounting plate includes a retracted shape portion at an end portion in the left-right direction of the linear portion.

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

the indoor unit includes:

a unit main body fixed to the mounting plate; and

a unit cover part covering the indoor side surface of the unit main body part,

the clamping portion includes:

a first clamping portion provided to the unit main body portion; and

a second clamping part arranged on the unit housing part,

the clamping device further includes a clamping state maintaining portion for maintaining the state that the linear portion is clamped by the first clamping portion and the second clamping portion from the vertical direction.