Heat exchanger and air conditioner indoor unit having the same

Abstract

The present invention provides a heat exchanger and an air conditioner indoor unit having the same. The heat exchanger has an initial state and a bent state. When the heat exchanger is in the bent state, the angle between the first heat exchange section and the second heat exchange section is d. The heat exchanger includes a heat exchanger body and a side plate. The first heat exchange section includes a first heat exchanger body and a first side plate section. The first side plate section includes a first connecting portion and a first extending portion, and the first connecting portion is connected to a side portion of the first heat exchanger body. The second heat exchange section includes a second heat exchanger body and a second side plate section, and the second side plate section is connected to a side portion of the second heat exchanger body. The heat exchanger body includes the first heat exchanger body and the second heat exchanger body. The side plate includes a first side plate section and a second side plate section. When the heat exchanger is in the initial state, the angle between the first edge of the first connecting portion and the second edge of the second side plate section is g, where g = d. This heat exchanger solves the problem of poor sealing of the side plates of heat exchangers in the prior art.

Description

Technical Field

[0001] The present invention relates to the field of household appliances, and in particular to a heat exchanger and an air conditioner indoor unit having the same. Background Art

[0002] The evaporator assembly is the heat exchange component of an air conditioner. It comes in either flat or L-shaped shapes. Flat evaporator assemblies have a small heat exchange panel. To ensure sufficient heat exchange area, the air conditioner is often larger, increasing shipping costs and taking up more room. Therefore, air conditioners often use L-shaped evaporator assemblies to increase the heat exchange area.

[0003] The L-shaped evaporator assembly requires multiple bends, and the corresponding side panels also need to adopt corresponding shapes. Existing L-shaped evaporator assemblies generally use four or three bends. Among them, two bends need to be bent into a V shape, so that the angle between the two bends is 60° to 75°, and the bend angles between the other bends are selected between 105° and 125°. The existing L-shaped evaporator assembly has the following problems:

[0004] The integrated side plate is difficult to install on the bottom shell component after the evaporator component is bent. In the worst case, it cannot be installed at all, resulting in a loose seal (gap) between the evaporator component and the bottom shell component, which is prone to air leakage and condensation in the machine cavity, causing condensation to be blown out from the air outlet.

[0005] The sealing between the folded edges of the side panels is poor and air leakage is easy;

[0006] When the evaporator assembly is bent, the broken part of the side plate or the sharp edge of the side plate may cut the U-tube, causing refrigerant leakage;

[0007] The height of the side panels is not appropriate, and the evaporator components cannot be stacked after completion;

[0008] After the side panel is bent, it cannot be sealed with the surrounding parts, and condensation water will be generated. Summary of the Invention

[0009] The main purpose of the present invention is to provide a heat exchanger and an air conditioner indoor unit having the same, so as to solve the problem of poor sealing performance of the side plates of the heat exchanger in the prior art.

[0010] In order to achieve the above-mentioned object, according to one aspect of the present invention, a heat exchanger is provided, which has an initial state and a bent state after being bent from the initial state. The heat exchanger includes a first heat exchange section and a second heat exchange section connected to the first heat exchange section. When the heat exchanger is in the initial state, the angle between the first heat exchange section and the second heat exchange section is 180 degrees; when the heat exchanger is in the bent state, the angle between the first heat exchange section and the second heat exchange section is d; the heat exchanger includes a heat exchanger body and a side plate arranged on the side of the heat exchanger body; the first heat exchange section includes the first heat exchanger body and the first The side plate section includes a first connecting portion and a first extension portion connected to the first connecting portion, the first connecting portion is connected to the side of the first heat exchanger body; the second heat exchange section includes a second heat exchanger body and a second side plate section, the second side plate section is connected to the side of the second heat exchanger body; the heat exchanger body includes the first heat exchanger body and the second heat exchanger body, and the side plate includes the first side plate section and the second side plate section; when the heat exchanger is in an initial state, the angle between the first edge connected to the first connecting portion and the first extension portion and the second edge of the second side plate section is g; wherein g=d.

[0011] Furthermore, the heat exchanger also includes a third heat exchange section, and the first heat exchange section, the second heat exchange section and the third heat exchange section are arranged in sequence along the extension direction of the heat exchanger; when the heat exchanger is in an initial state, the angle between the second heat exchange section and the third heat exchange section is 180 degrees; when the heat exchanger is in a bent state, the angle between the second heat exchange section and the third heat exchange section is e; the third heat exchange section includes a third heat exchanger body and a third side plate section, and the third side plate section is connected to the side of the third heat exchanger body; the heat exchanger body includes the third heat exchanger body, and the side plate includes the third side plate section; when the heat exchanger is in the initial state, the angle between the third edge of the second side plate section and the fourth edge of the third side plate section is f; wherein, f=e.

[0012] Furthermore, the height of the side plate is h, and the thickness of the heat exchanger body is b; wherein, h≤3b.

[0013] Furthermore, the heat exchanger body includes a tube body; the side plate is provided with an opening portion, the tube body is provided in the opening portion, and the tube body is spaced apart from the opening surface of the opening portion.

[0014] Furthermore, the opening surface is an arc-shaped surface, and the radius of the arc-shaped surface is r1; the radius of the tube body is r2; wherein r1-r2≥2mm.

[0015] Furthermore, the side plate also includes a first side plate connecting portion and a second side plate connecting portion, the first connecting portion is connected by the first side plate connecting portion and the second side plate segment, and the second side plate segment is connected by the second side plate connecting portion and the third side plate segment; the first heat exchanger body and the second heat exchanger body break along the first rotation line when they are bent, and the second heat exchanger body and the third heat exchanger body break along the second rotation line when they are bent; when the heat exchanger is in an initial state, the side plate is an integrally formed structure; the first side plate connecting portion has a first breaking point, and the second side plate connecting portion has a second breaking point; in the extension direction of the heat exchanger, the area of the first side plate connecting portion at the first breaking point is the smallest, and the area of the second side plate connecting portion at the second breaking point is the smallest; wherein, the first breaking point is located on the first reference line, the second breaking point is located on the second reference line, the first reference line is perpendicular to the first rotation line, and the second reference line is perpendicular to the second rotation line.

[0016] According to another aspect of the present invention, an air-conditioning indoor unit is provided, comprising a heat exchanger and a bottom shell component, wherein the heat exchanger has a first connecting end and a second connecting end oppositely arranged along its extension direction, and the first connecting end and the second connecting end are both in contact with the bottom shell component, wherein the heat exchanger is the above-mentioned heat exchanger.

[0017] Furthermore, the air-conditioning indoor unit also includes: a motor, including a motor pressure plate, the side plate of the heat exchanger is connected to the motor pressure plate, the side plate includes a first plate segment, a second plate segment and a third plate segment connected in sequence, the first plate segment and the second plate segment are set at a first preset angle, and the second plate segment and the third plate segment are set at a second preset angle; the third plate segment is pressed on the pressure plate end face of the motor pressure plate, and the second plate segment is pressed on the pressure plate side wall of the motor pressure plate.

[0018] Furthermore, the third plate segment and the first plate segment are arranged on opposite sides of the second plate segment; the first preset angle is 90 degrees; and / or the second preset angle is 90 degrees.

[0019] Furthermore, a first fastening hole is provided on the side plate, and a second fastening hole is provided on the motor pressure plate. The motor pressure plate is connected by fasteners inserted into the first fastening hole and the second fastening hole.

[0020] The heat exchanger of the present invention is suitable for an air conditioner. The heat exchanger has an initial state and a bent state after being bent from the initial state. When the heat exchanger is in the bent state, the angle between the first heat exchange section and the second heat exchange section is d, and the angle between the first edge and the second edge is g. The angle d between the first heat exchange section and the second heat exchange section and the angle g between the first edge and the second edge of the heat exchanger are equal. This arrangement ensures that the first and second side plate sections overlap after the heat exchanger is bent, thereby ensuring effective sealing between the first and second side plate sections, preventing air leakage between the first and second side plate sections from causing condensation in the machine cavity and causing condensation to be blown out of the air outlet, thereby resolving the problem of poor sealing of the side plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 A schematic structural diagram of an embodiment of a heat exchanger according to the present invention in an initial state is shown;

[0023] Figure 2 A schematic structural diagram of an embodiment of a heat exchanger according to the present invention in a bent state is shown;

[0024] Figure 3 A schematic diagram showing a side plate of a heat exchanger according to the present invention is shown;

[0025] Figure 4 shows an axonometric view of an embodiment of a heat exchanger according to the invention;

[0026] Figure 5 A schematic diagram showing a stacked arrangement of heat exchangers according to the present invention is shown;

[0027] Figure 6 A schematic diagram showing the side plate and motor pressure plate of the heat exchanger according to the present invention is shown;

[0028] Figure 7 A schematic diagram showing an embodiment of an air-conditioning indoor unit according to the present invention is shown;

[0029] Figure 8 A cross-sectional view showing an embodiment of an air conditioner indoor unit according to the present invention; and

[0030] Figure 9 The figure shows the installation diagram of the heat exchanger (installed along the x direction) and the motor pressure plate of the indoor unit of the air conditioner according to the present invention.

[0031] The above drawings include the following reference numerals:

[0032] 10. First heat exchange section; 20. Second heat exchange section; 30. Third heat exchange section; 40. Heat exchanger body; 41. First heat exchanger body; 42. Second heat exchanger body; 43. Third heat exchanger body; 44. Tube; 45. First reference line; 46. Second reference line; 47. First rotation line; 48. Second rotation line; 50. Side plate; 51. First side plate section; 511. First connecting portion; 512. First extension portion; 513. First edge; 52. Second side plate section; 521. Second edge; 522. Third edge; 53. Third side plate section; 531. Fourth edge; 54. Opening; 541. Opening surface; 55. First side plate connecting portion; 551. First breaking point; 56. Second side plate connecting portion; 561. Second breaking point;

[0033] 60. Bottom shell component; 70. Motor pressure plate; 71. Pressure plate end surface; 72. Pressure plate side wall; 80. Heat exchanger; 81. First connection end; 82. Second connection end;

[0034] 57. First plate segment; 58. Second plate segment; 59. Third plate segment. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0036] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present application belongs.

[0037] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0038] The present invention provides a heat exchanger, please refer to Figures 1 to 9The heat exchanger has an initial state and a bent state after being bent from the initial state. The heat exchanger includes a first heat exchange section 10 and a second heat exchange section 20 connected to the first heat exchange section 10. When the heat exchanger is in the initial state, the angle between the first heat exchange section 10 and the second heat exchange section 20 is 180 degrees; when the heat exchanger is in the bent state, the angle between the first heat exchange section 10 and the second heat exchange section 20 is d; the heat exchanger includes a heat exchanger body 40 and a side plate 50 arranged on the side of the heat exchanger body 40; the first heat exchange section 10 includes a first heat exchanger body 41 and a first side plate section 51, the first side plate section 51 includes a first connecting portion 511 and a first connecting portion 511 connected to the first The connecting portion 511 is connected to the first extension portion 512, and the first connecting portion 511 is connected to the side of the first heat exchanger body 41; the second heat exchange section 20 includes the second heat exchanger body 42 and the second side plate segment 52, and the second side plate segment 52 is connected to the side of the second heat exchanger body 42; the heat exchanger body 40 includes the first heat exchanger body 41 and the second heat exchanger body 42, and the side plate 50 includes the first side plate segment 51 and the second side plate segment 52; when the heat exchanger is in the initial state, the angle between the first edge 513 connected to the first connecting portion 511 and the first extension portion 512 and the second edge 521 of the second side plate segment 52 is g; wherein g=d.

[0039] The heat exchanger of the present invention is suitable for air conditioners and has an initial state and a bent state after being bent from the initial state. When the heat exchanger is in the bent state, the angle between the first heat exchange section 10 and the second heat exchange section 20 is d, and the angle between the first edge 513 and the second edge 521 is g. The angle d between the first heat exchange section 10 and the second heat exchange section 20 and the angle g between the first edge 513 and the second edge 521 of the heat exchanger are equal. This arrangement ensures that the first side plate section 51 and the second side plate section 52 overlap after the heat exchanger is bent, thereby ensuring effective sealing between the first side plate section 51 and the second side plate section 52, preventing air leakage between the first side plate section 51 and the second side plate section 52 from causing condensation in the machine cavity and causing condensation to be blown out of the air outlet, thereby solving the problem of poor sealing of the side plates.

[0040] Specifically, the first connecting portion 511 is disposed opposite to the first heat exchanger body 41 , and the first extending portion 512 is disposed to protrude from the leeward side surface of the first heat exchanger body 41 .

[0041] In this embodiment, the heat exchanger also includes a third heat exchange section 30, and the first heat exchange section 10, the second heat exchange section 20 and the third heat exchange section 30 are arranged in sequence along the extension direction of the heat exchanger; when the heat exchanger is in the initial state, the angle between the second heat exchange section 20 and the third heat exchange section 30 is 180 degrees; when the heat exchanger is in the bent state, the angle between the second heat exchange section 20 and the third heat exchange section 30 is e; the third heat exchange section 30 includes a third heat exchanger body 43 and a third side plate section 53, and the third side plate section 53 is connected to the side of the third heat exchanger body 43; the heat exchanger body 40 includes the third heat exchanger body 43, and the side plate 50 includes the third side plate section 53; when the heat exchanger is in the initial state, the angle between the third edge 522 of the second side plate section 52 and the fourth edge 531 of the third side plate section 53 is f; wherein f=e. In this way, after the second side plate section 52 and the third side plate section 53 are bent, the third edge 522 and the fourth edge 531 are parallel, which can make the gap between the two a narrow and uniform gap, which can effectively prevent air leakage.

[0042] The extension direction of the heat exchanger is as follows: Figure 1 The up and down directions in .

[0043] In this embodiment, the height of the side plate 50 is h, and the thickness of the heat exchanger body 40 is b; where h ≤ 3b. In practice, the height h of the integrated side plate is also an important factor in side plate design. To facilitate stacking of evaporator assemblies (i.e., heat exchangers) and effectively conserve floor space, the side plate height h must be less than or equal to three times the thickness b of the heat exchanger body 40, provided there is sufficient overlap between the side plate and the motor platen.

[0044] In this embodiment, the heat exchanger body 40 includes a tube body 44 ; the side plate 50 is provided with an opening portion 54 , and the tube body 44 is disposed in the opening portion 54 . The tube body 44 is spaced apart from an opening surface 541 of the opening portion 54 .

[0045] Specifically, the opening surface 541 is an arc-shaped surface with a radius of r1; the radius of the tube body 44 is r2; where r1-r2 ≥ 2mm. During implementation, another consideration is whether the edge of the side plate will cut the U-tube, causing refrigerant leakage. This is especially true when the bending angle d is relatively small, meaning that the first side plate segment 51 rotates at a large angle (the complementary angle of the bending angle d). This bending process can easily cause tube cuts, so r1-r2 ≥ 2mm is required.

[0046] In this embodiment, the side plate 50 further includes a first side plate connecting portion 55 and a second side plate connecting portion 56. The first connecting portion 511 is connected to the second side plate segment 52 via the first side plate connecting portion 55, and the second side plate segment 52 is connected to the third side plate segment 53 via the second side plate connecting portion 56. When the first heat exchanger body 41 and the second heat exchanger body 42 are bent, they break along the first rotation line 47, and when the second heat exchanger body 42 and the third heat exchanger body 43 are bent, they break along the second rotation line 48. When the heat exchanger is in the initial state, the side plate 50 is an integrally formed structure. The first side plate connection portion 55 has a first breaking point 551, and the second side plate connection portion 56 has a second breaking point 561. In the extension direction of the heat exchanger, the area of the first side plate connection portion 55 is the smallest at the first breaking point 551, and the area of the second side plate connection portion 56 is the smallest at the second breaking point 561. The first breaking point 551 is located on the first reference line 45, and the second breaking point 561 is located on the second reference line 46. The first reference line 45 is perpendicular to the first rotation line 47, and the second reference line 46 is perpendicular to the second rotation line 48. The first reference line 45 intersects with the first rotation line 47, and the second reference line 46 intersects with the second rotation line 48. It should be noted that the first breaking point 551 and the second breaking point 561 refer to the breaking positions of the first side plate connection portion 55 and the second side plate connection portion 56, not to specific points.

[0047] In specific implementation, the heat exchanger body 40 is broken along a line when it is bent (which is equivalent to breaking around the rotation point in a plan view and around the line in a three-dimensional view when it is rotated). A line is made perpendicular to the heat exchanger body 40 and the rotation line when it is bent ( Figure 1 The first reference line 45 and the second reference line 46 in the figure are provided. When designing the side plate 50, the theoretical breaking point of the side plate 50 (the weak point of the side plate, i.e., the first breaking point 551 and the second breaking point 561) needs to be designed on this line ( Figure 1 The best position is when the theoretical breaking point of the side plate 50 and the rotation point of the heat exchanger body 40 are at the same position (with the first reference line 45 and the second reference line 46 in FIG). Figure 1 However, due to the arrangement of the heat exchanger pipes, the theoretical breaking point of the side plate 50 and the rotation point of the heat exchanger body 40 cannot be designed at the same position. The theoretical breaking point of the side plate 50 can be designed just below the rotation point of the heat exchanger (along the Figure 1 If the first reference line 45 and the second reference line 46 in the figure are not arranged, and the heat exchanger pipeline layout is not satisfied, the only option is to place the edge plate 50 just above the rotation point of the heat exchanger body 40, but not too far from the rotation point of the heat exchanger body 40. In short, the theoretical breaking point of the edge plate 50 needs to be arranged at Figure 1 On the first reference line 45 and the second reference line 46 in.

[0048] In order to prevent condensation from forming when hot and cold air meet inside the indoor unit of the air conditioner, the left and right sides of the indoor unit of the air conditioner need to be sealed so that the hot air in the room can only pass through the surface of the evaporator component (i.e. the heat exchanger) and then enter the machine cavity (such as Figure 7 ), that is, the indoor hot air flow needs to pass through the surface of the evaporator assembly for heat exchange and become cold air to enter the machine cavity. If the indoor hot air flow enters the machine cavity directly (without passing through the evaporator assembly for heat exchange), condensation water will be generated in the machine cavity. The side plate of the indoor unit of the air conditioner has a great influence on the sealing between the end of the evaporator assembly and the bottom shell component, and the sealing of the right side of the air conditioner (the side with the motor pressure plate) is mainly achieved by the side plate. The integrated side plate of the heat exchanger improves the bending quality and sealing of the evaporator assembly while improving production efficiency. The biggest problem with the integrated side plate is the bending quality of the evaporator assembly, that is, the evaporator assembly is difficult to install after bending, and even worse, it cannot be installed (the actual sample is very different from the theoretical design model). In both cases, the sealing between the evaporator assembly and the bottom shell component will be poor (there is a gap), which will cause condensation water in the machine cavity. The first connecting end 81 and the second connecting end 82 are used to achieve sealing with the bottom shell component (such as Figure 7 The evaporator assembly is manufactured as a flat plate (such as Figure 1 ), it needs to be bent and then installed together with the motor pressure plate through the side plate (such as Figure 6 、 8 and 9), thereby fixing it on the bottom shell component. When bending, the heat exchanger body and the side plate are bent as a whole, that is, the evaporator assembly is bent as a whole. In order to ensure the sealing between the evaporator assembly and the bottom shell component, the theoretical design uses the bending point of the heat exchanger body as the rotation center of the evaporator assembly. That is, when the evaporator assembly is bent, the heat exchanger body needs to drive the side plate to bend to ensure that the rotation center of the evaporator assembly is the bending point of the heat exchanger body. This requires that when the side plate is bent, the first breaking point 551 is located on the first reference line 45, and the second breaking point 561 is located on the second reference line 46 (such as Figure 1 ). In addition, the strength of the first breaking point 551 and the second breaking point 561 of the side plate needs to be small enough, such as Figure 3The dimension a in the figure should be less than 2mm. To ensure that the integrated side panel does not break during transportation, the dimension a cannot be too small. The empirical value is 1.5mm<a<2mm. The structures on both sides of the first breaking point 551 of the first side panel connection portion 55 must be strong enough to ensure that the first side panel connection portion 55 breaks at the first breaking point 551 when it is bent. The first side panel connection portion 55 has a V-shaped structure, which is conducive to ensuring the breaking point of the side panel when the evaporator assembly is bent, so that the side panel breaks along with the heat exchanger body, and the heat exchanger body bends at the first rotation line 47 and the second rotation line 48, so that the side panel breaks at the first breaking point 551 and the second breaking point 561 (wherein the first side panel connection portion 55 and the second side panel connection portion 56 have the same structure).

[0049] Specifically, the opening direction of the V-shaped structure is the same as the direction of the windward side surface of the evaporator assembly.

[0050] During implementation, the first, second, and third side panel sections 51, 52, and 53 must be sealed as closely as possible, minimizing the gaps between them. Because the bending angle d is relatively small, to prevent springback after bending, the lower portion of the first side panel section 51 must be placed over the second side panel section 52. The buckle of the second side panel section 52 must fit into the buckle hole of the first side panel section 51. Simultaneously, the through hole of the first side panel section 51 must be aligned with the flange hole of the second side panel section 52 (screws will then be used to secure the gap to prevent springback). During bending, the buckle of the second side panel section 52 fits into the buckle hole of the first side panel section 51, indicating that both have been bent into place. After the first side panel section 51 is bent, there is an overlapping portion with the second side panel section 52 for effective sealing. In order to make the first side panel section 51 and the second side panel section 52 have a sufficiently large overlapping portion, it is necessary to make the angle g between the first side panel section 51 and the second side panel section 52 equal to the bending angle d. This can effectively prevent air leakage from the gaps between the folded edges, causing condensation problems inside the machine cavity.

[0051] In other embodiments, the side plates are directly punched and bent into shape and then directly put on the heat exchanger body. They can be fixed with screws. However, the heat exchanger needs to be bent before tube expansion, otherwise the side plates cannot be effectively connected to the heat exchanger body.

[0052] The present invention also provides an air conditioner indoor unit, please refer to Figures 6 to 9 , including a heat exchanger 80 and a bottom shell component 60. The heat exchanger 80 has a first connecting end 81 and a second connecting end 82 that are oppositely arranged along its extension direction. The first connecting end 81 and the second connecting end 82 are both in contact with the bottom shell component 60. The heat exchanger 80 is the heat exchanger in the above embodiment.

[0053] Specifically, the air-conditioning indoor unit also includes: a motor, including a motor pressure plate 70, the side plate 50 of the heat exchanger 80 is connected to the motor pressure plate 70, the side plate 50 includes a first plate segment 57, a second plate segment 58 and a third plate segment 59 connected in sequence, the first plate segment 57 and the second plate segment 58 are arranged at a first preset angle, and the second plate segment 58 and the third plate segment 59 are arranged at a second preset angle; the third plate segment 59 is pressed on the pressure plate end face 71 of the motor pressure plate 70, and the second plate segment 58 is pressed on the pressure plate side wall 72 of the motor pressure plate 70.

[0054] In specific implementation, the side plate not only affects the sealing between the evaporator assembly and the bottom shell component, but also needs to consider the sealing between the side plate and the motor pressure plate. Since there is an assembly gap between the side plate and the motor pressure plate, in order to prevent air leakage, it is necessary to use a stopper between the side plate and the motor pressure plate (such as Figure 6 ), so that its gaps form a maze, and it is difficult for indoor air to enter the machine cavity through its gaps.

[0055] Specifically, the third plate segment 59 and the first plate segment 57 are arranged on opposite sides of the second plate segment 58; the first preset angle is 90 degrees; and / or the second preset angle is 90 degrees. Such an arrangement has a better sealing effect.

[0056] Specifically, the side plate 50 is provided with a first fastening hole, and the motor pressure plate 70 is provided with a second fastening hole. The motor pressure plate 70 is connected via fasteners inserted into the first fastening hole and the second fastening hole. This arrangement achieves a reliable fixation of the side plate 50 and the motor pressure plate 70, ensuring a tight seal.

[0057] The technical problems solved by this application are: the gap between the evaporator assembly (i.e., the heat exchanger) and the bottom shell component is very large after being bent, which makes it easy for air to leak and cause condensation in the machine cavity, causing condensation water to be blown out from the air outlet; when the evaporator assembly is bent, the broken part of its side plate or the sharp edge of the side plate causes the U-tube (i.e., the tube body) to be cut, causing refrigerant leakage; the height of the side plate is not appropriate, and the evaporator assembly cannot be stacked after it is completed; after the side plate is bent, it cannot be sealed with the surrounding parts, and condensation water will be generated.

[0058] The beneficial effects of the present application are as follows: the rotation centers of the bending of the side plates and the fins are on the same rotation center, so that the rotation center of the evaporator assembly is on the preset rotation center when it is bent and rotated, thereby ensuring that the evaporator assembly and the bottom shell component can be assembled in place, so that the evaporator assembly and the bottom shell component can be sealed, and condensation water will not be generated here. The side plate and the motor pressure plate adopt a stopper matching method and the edge angle of each folded edge of the side plate is equal to the folded angle of the evaporator assembly, which can effectively ensure its sealing; wherein, the heat exchanger body includes fins and a tube body. The height design of the side plate is reasonable, so that the evaporation assembly can be stacked, saving the occupied site area. The integrated side plate can reduce the number of parts, improve production efficiency, and save corporate costs. The side plate is far enough away from the U-tube that it will not cause tube cutting during the bending process.

[0059] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0060] The heat exchanger of the present invention is suitable for air conditioners and has an initial state and a bent state after being bent from the initial state. When the heat exchanger is in the bent state, the angle between the first heat exchange section 10 and the second heat exchange section 20 is d, and the angle between the first edge 513 and the second edge 521 is g. The angle d between the first heat exchange section 10 and the second heat exchange section 20 and the angle g between the first edge 513 and the second edge 521 of the heat exchanger are equal. This arrangement ensures that the first side plate section 51 and the second side plate section 52 overlap after the heat exchanger is bent, thereby ensuring effective sealing between the first side plate section 51 and the second side plate section 52, preventing air leakage between the first side plate section 51 and the second side plate section 52 from causing condensation in the machine cavity and causing condensation to be blown out of the air outlet, thereby solving the problem of poor sealing of the side plates.

[0061] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0062] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0063] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A heat exchanger, characterized in that: The heat exchanger has an initial state and a bent state after being bent from the initial state, the heat exchanger comprises a first heat exchange section (10) and a second heat exchange section (20) connected to the first heat exchange section (10); when the heat exchanger is in the initial state, the angle between the first heat exchange section (10) and the second heat exchange section (20) is 180 degrees; when the heat exchanger is in the bent state, the angle between the first heat exchange section (10) and the second heat exchange section (20) is d; the heat exchanger comprises a heat exchanger body (40) and a side plate (50) arranged on a side of the heat exchanger body (40); The first heat exchange section (10) includes a first heat exchanger body (41) and a first side plate section (51), the first side plate section (51) includes a first connecting portion (511) and a first extending portion (512) connected to the first connecting portion (511), the first connecting portion (511) being connected to a side portion of the first heat exchanger body (41); the second heat exchange section (20) includes a second heat exchanger body (42) and a second side plate section (52), the second side plate section (52) being connected to a side portion of the second heat exchanger body (42); the heat exchanger body (40) includes the first heat exchanger body (41) and the second heat exchanger body (42), and the side plate (50) includes the first side plate section (51) and the second side plate section; When the heat exchanger is in the initial state, the angle between the first edge (513) where the first connecting portion (511) is connected to the first extension portion (512) and the second edge (521) of the second edge plate section (52) is g; wherein g=d; The heat exchanger body (40) includes a tube body (44); the side plate (50) is provided with an opening portion (54), the tube body (44) is provided in the opening portion (54), and the tube body (44) is spaced apart from an opening surface (541) of the opening portion (54); The side plate (50) further includes a first side plate connecting portion (55), wherein the first connecting portion (511) is connected to the second side plate segment (52) via the first side plate connecting portion (55); the first heat exchanger body (41) and the second heat exchanger body (42) are broken along the first rotation line (47) when being bent; The first side plate connection portion (55) has a first breaking point (551), and in the extension direction of the heat exchanger, the area of the first side plate connection portion (55) at the first breaking point (551) is the smallest; the first breaking point (551) is located on a first reference line (45), and the first reference line (45) is perpendicular to the first rotation line (47).

2. The heat exchanger according to claim 1, characterized in that The heat exchanger further comprises a third heat exchange section (30), wherein the first heat exchange section (10), the second heat exchange section (20) and the third heat exchange section (30) are sequentially arranged along the extension direction of the heat exchanger; when the heat exchanger is in the initial state, the angle between the second heat exchange section (20) and the third heat exchange section (30) is 180 degrees; when the heat exchanger is in the bent state, the angle between the second heat exchange section (20) and the third heat exchange section (30) is e; The third heat exchange section (30) includes a third heat exchanger body (43) and a third side plate section (53), and the third side plate section (53) is connected to a side portion of the third heat exchanger body (43); the heat exchanger body (40) includes the third heat exchanger body (43), and the side plate (50) includes the third side plate section (53); When the heat exchanger is in the initial state, the angle between the third edge (522) of the second side plate segment (52) and the fourth edge (531) of the third side plate segment (53) is f; wherein f=e.

3. The heat exchanger according to claim 1, characterized in that The height of the side plate (50) is h, and the thickness of the heat exchanger body (40) is b; wherein h≤3b.

4. The heat exchanger according to claim 1, characterized in that The opening surface (541) is an arc-shaped surface, and the radius of the arc-shaped surface is r1; the radius of the tube body (44) is r2; wherein r1-r2≥2mm.

5. The heat exchanger according to claim 2, characterized in that The side plate (50) further includes a second side plate connecting portion (56), and the second side plate segment (52) is connected to the third side plate segment (53) via the second side plate connecting portion (56); The second heat exchanger body (42) and the third heat exchanger body (43) are broken along the second rotation line (48) when bent; When the heat exchanger is in the initial state, the side plate (50) is an integrally formed structure; the second side plate connecting portion (56) has a second breaking point (561); in the extension direction of the heat exchanger, the area of the second side plate connecting portion (56) at the second breaking point (561) is the smallest; wherein the second breaking point (561) is located on the second reference line (46), and the second reference line (46) is perpendicular to the second rotation line (48).

6. An air conditioner indoor unit, comprising a heat exchanger (80) and a bottom shell component (60), wherein the heat exchanger (80) has a first connecting end (81) and a second connecting end (82) arranged opposite to each other along its extension direction, and the first connecting end (81) and the second connecting end (82) are both in contact with the bottom shell component (60), characterized in that: The heat exchanger (80) is the heat exchanger according to any one of claims 1 to 5.

7. The air conditioner indoor unit according to claim 6, characterized in that: The air conditioner indoor unit also includes: The motor includes a motor pressure plate (70), a side plate (50) of the heat exchanger (80) is connected to the motor pressure plate (70), the side plate (50) includes a first plate segment (57), a second plate segment (58) and a third plate segment (59) connected in sequence, the first plate segment (57) and the second plate segment (58) are arranged at a first preset angle, and the second plate segment (58) and the third plate segment (59) are arranged at a second preset angle; the third plate segment (59) is pressed on the pressure plate end surface (71) of the motor pressure plate (70), and the second plate segment (58) is pressed on the pressure plate side wall (72) of the motor pressure plate (70).

8. The air conditioner indoor unit according to claim 7, characterized in that: The third plate segment (59) and the first plate segment (57) are arranged on opposite sides of the second plate segment (58); The first preset angle is 90 degrees; and / or the second preset angle is 90 degrees.

9. The air conditioner indoor unit according to claim 7, characterized in that: A first fastening hole is provided on the side plate (50), a second fastening hole is provided on the motor pressure plate (70), and the motor pressure plate (70) is connected via fasteners inserted into the first fastening hole and the second fastening hole.

Images