Chassis assembly and air conditioner outdoor unit

Abstract

The utility model discloses a bottom pan assembly and air conditioner outdoor unit, bottom pan assembly includes bottom pan and heating device, bottom pan is used for air conditioner outdoor unit, heating device includes electric heating tube, and electric heating tube sets up on bottom pan, and electric heating tube includes a plurality of heating pipe sections of parallel extension. According to the bottom pan assembly of the utility model, through the possibility of reducing local overheating or edge regional icing efficiency low etc. of heating pipe section parallel extension can reduce the possibility of occurrence, promotes the overall icing efficiency, a plurality of heating pipe sections parallel can disperse total power to a plurality of heating pipe sections, reduce the surface load of each heating pipe section, reduce the overheating risk of electric heating tube, prolong the service life of electric heating tube, improve the reliability of electric heating tube.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and in particular to a chassis assembly and an outdoor unit of an air conditioner. Background Technology

[0002] In related technologies, the heat exchanger of the outdoor unit of an air conditioner will frost over, and the water produced during defrosting will drip onto the chassis and freeze. Therefore, an electric heating element is installed on the chassis of the outdoor unit of the air conditioner. However, the defrosting efficiency of the electric heating element is low and it is easily damaged, resulting in poor reliability. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention provides a chassis assembly that can improve the de-icing efficiency and reliability of the electric heating element.

[0004] This utility model also proposes an outdoor unit for an air conditioner having the aforementioned chassis assembly.

[0005] According to a first aspect of the present invention, a chassis assembly includes a chassis and a heating device, the chassis being used for an outdoor unit of an air conditioner; the heating device includes an electric heating tube disposed on the chassis, the electric heating tube including a plurality of parallel extending heating tube segments.

[0006] According to the chassis assembly of this utility model embodiment, the parallel extension of heating tube segments can reduce the possibility of problems such as local overheating or low de-icing efficiency in edge areas, thereby improving the overall de-icing efficiency; the parallel extension of multiple heating tube segments can distribute the total power to multiple heating tube segments, reduce the surface load of each heating tube segment, reduce the risk of overheating of the electric heating tube, extend the service life of the electric heating tube, and improve the reliability of the electric heating tube.

[0007] In some embodiments, the electric heating tube includes two heating tube segments, namely a first tube segment and a second tube segment, wherein the second tube segment is located on one side of the width direction of the first tube segment and is higher than the first tube segment.

[0008] In some embodiments, the angle between the line connecting the center of the first pipe segment and the center of the second pipe segment and the horizontal line is 30°-70°; and / or, the first pipe segment and the second pipe segment have the same diameter, and the projection distance between the first pipe segment and the second pipe segment in the horizontal plane is 0.5-1 times the diameter of the first pipe segment.

[0009] In some embodiments, the chassis has an upwardly convex structure, at least a portion of which is located below the second pipe segment.

[0010] In some embodiments, both the first pipe segment and the second pipe segment are formed as rectangular rings with one side open, and the second pipe segment is offset toward the enclosure area of ​​the first pipe segment.

[0011] In some embodiments, the chassis is rectangular, and each heating tube segment includes a first extension segment, a second extension segment, and a third extension segment connected in sequence. The first extension segment and the third extension segment extend along the width direction of the chassis, and the second extension segment extends along the length direction of the chassis. The first extension segment and the third extension segment are respectively arranged near the two short sides of the chassis relative to the center of the chassis, and the second extension segment is arranged near the one long side of the chassis relative to the center of the chassis.

[0012] In some embodiments, the electric heating tube is a single tube and includes a bend, with one adjacent end of two adjacent heating tube segments connected by the bend.

[0013] In some embodiments, the electric heating element is a single tube and includes a bend, wherein adjacent ends of the first tube segment and the second tube segment are connected by the bend.

[0014] In some embodiments, the top of the bend is higher than the second pipe section; and / or, the diameters of the first pipe section and the second pipe section are the same, and the turning radius of the bend is greater than or equal to 2.5-5 times the diameter of the first pipe section.

[0015] In some embodiments, the heating device includes a first electrical contact connected to one end of the first pipe segment away from the bend, and a second electrical contact connected to one end of the second pipe segment away from the bend, the first electrical contact extending upward relative to the first pipe segment and the second electrical contact extending upward relative to the second pipe segment.

[0016] In some embodiments, the chassis assembly includes a plurality of dual pipe clamps spaced apart along the extension direction of the first pipe segment, the dual pipe clamps engaging with the first pipe segment and the second pipe segment respectively to restrict the relative positions of the first pipe segment and the second pipe segment.

[0017] In some embodiments, the second pipe segment is higher than the first pipe segment, and the chassis assembly further includes a plurality of single pipe clamps spaced apart along the extension direction of the first pipe segment. The single pipe clamps cooperate with the first pipe segment and are fixedly installed on the chassis to limit the relative position of the first pipe segment and the chassis.

[0018] In some embodiments, the chassis includes a water collection tank, the electric heating tube is disposed in the water collection tank, the chassis has a drain hole communicating with the water collection tank, and the chassis has an upward convex structure that helps to define the water collection tank.

[0019] According to the second aspect of the present invention, the outdoor unit of the air conditioner includes the chassis assembly of any embodiment of the first aspect of the present invention.

[0020] According to the embodiments of the present invention, by setting the chassis assembly described in the first aspect, the operational reliability of the outdoor unit of the air conditioner can be improved.

[0021] In some embodiments, the outdoor unit of the air conditioner includes a heat exchanger and a fan, and the electric heating element is located below the heat exchanger and / or the fan.

[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of a chassis assembly according to an embodiment of the present invention; Figure 2 yes Figure 1 A schematic diagram of the electric heating element shown; Figure 3 yes Figure 1 The front view of the electric heating element shown; Figure 4 yes Figure 1 A top view of the electric heating element shown; Figure 5 yes Figure 1 A top view of the chassis components shown; Figure 6 yes Figure 1 A side view of the electric heating element shown; Figure 7 This is a schematic diagram of an outdoor unit of an air conditioner according to an embodiment of the present invention.

[0025] Figure label: Air conditioner outdoor unit 1000; heat exchanger 200; fan 300; Chassis component 100; chassis width direction F1; chassis length direction F2; Chassis 1; Convex structure 11; Water collection trough 12; Drainage hole 13; Heating device 2; electric heating element 21; Heating pipe section 211; First pipe section 211a; Second pipe section 211b; First extension segment 2111; Second extension segment 2112; Third extension segment 2113; Bend section 212; Top 2121; First power connection part 22; Second power connection part 23; 3. Double pipe clamp; 4. Single pipe clamp. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0027] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0028] Hereinafter, with reference to the accompanying drawings, a chassis assembly 100 according to a first aspect embodiment of the present invention will be described.

[0029] Reference Figure 1 The chassis assembly 100 includes a chassis 1 and a heating device 2. The chassis 1 is used for the outdoor unit 1000 of the air conditioner. The heating device 2 includes an electric heating tube 21, which is disposed on the chassis 1. The electric heating tube 21 includes a plurality of parallel heating tube segments 211.

[0030] The heating device 2 refers to a device that converts electrical energy into heat energy to melt the ice accumulated on the chassis 1. For example, the electric heating element 21 is mainly used to prevent water from accumulating, freezing, or frosting on the chassis 1 of the outdoor unit 1000 of the air conditioner in winter.

[0031] For example, the heating device 2 may include components such as an electric heating element 21, a thermostat, and electrical connectors. For example, the electric heating element 21 is a tubular heating element with a resistance wire as the heating element, and an outer insulating material and a metal sheath. For example, the electric heating element 21 may be a metal electric heating element composed of a metal shell, a resistance wire, an insulating filler (such as magnesium oxide), a sealed end cap, a power cord, etc.

[0032] The electric heating element 21 includes multiple heating tube segments 211 extending in parallel. "Extended in parallel" means that the multiple heating tube segments 211 extend in the same direction and are arranged at approximately equal intervals. The multiple heating tube segments 211 extending in parallel may be unconnected, with each segment 211 being independently arranged; alternatively, the multiple heating tube segments 211 extending in parallel may be connected to form a long and meandering electric heating element 21. For example, the number of heating tube segments 211 is not limited, and can be 2, 3, 4, 5, etc.

[0033] In the above technical solution, by extending multiple heating tube segments 211 in parallel, on the one hand, the contact area between the heating device 2 and the ice on the chassis 1 is increased, making the heat distribution more uniform. Compared with heating a single tube segment, extending the heating tube segments 211 in parallel can reduce the possibility of problems such as local overheating or low ice-melting efficiency in the edge area, and improve the overall ice-melting efficiency. On the other hand, the parallel extension of multiple heating tube segments 211 can distribute the total power to multiple heating tube segments 211, reduce the surface load (power density) of each heating tube segment 211, reduce the risk of overheating of the electric heating tube 21, extend the service life of the electric heating tube 21, and improve the reliability of the electric heating tube 21. In addition, the number of parallel extending heating tube segments 211 can be adjusted according to the area on the chassis 1 that needs to be ice-melted, etc., to meet the needs of air conditioner outdoor units 1000 of different specifications and sizes, and improve the adaptability of chassis assembly 100.

[0034] Reference Figure 2 In some embodiments, the electric heating tube 21 includes two heating tube segments 211, namely a first tube segment 211a and a second tube segment 211b, wherein the second tube segment 211b is located on one side of the width direction of the first tube segment 211a.

[0035] In the above technical solution, by setting the second pipe segment 211b on one side of the width direction of the first pipe segment 211a, the height occupied by the heating pipe segment 211 in the vertical direction can be reduced; when the second pipe segment 211b is parallel to the first pipe segment 211a, by adjusting the distance between the first pipe segment 211a and the second pipe segment 211b, the heat coverage range of the heating pipe segment 211 can be adjusted, reducing the damage to the electric heating pipe 21 caused by local heat concentration due to excessively close spacing, or insufficient de-icing in the edge area of ​​the heating pipe segment 211 due to excessively far spacing.

[0036] Reference Figure 2 In some embodiments, the electric heating tube 21 includes two heating tube segments 211, namely a first tube segment 211a and a second tube segment 211b, wherein the second tube segment 211b is higher than the first tube segment 211a.

[0037] In the above technical solution, the second pipe section 211b is higher than the first pipe section 211a, which can reduce the projected area of ​​the electric heating tube 21 in the horizontal direction, that is, reduce the width occupied by the electric heating tube 21 in the horizontal direction, and improve the structural compactness of the chassis assembly 100; in addition, it also allows the heat to diffuse simultaneously in the vertical and horizontal directions, forming a three-dimensional heat field distribution, which accelerates the melting speed of ice.

[0038] Reference Figure 2 In some embodiments, the electric heating element 21 includes two heating element segments 211, namely a first segment 211a and a second segment 211b. The second segment 211b is located on one side of the width direction of the first segment 211a and is higher than the first segment 211a. Thus, the second segment 211b being located above one side of the width direction of the first segment 211a reduces both the horizontal width and vertical height occupied by the electric heating element 21 compared to two heating element segments 211 extending horizontally at the same height or two heating element segments 211 arranged only vertically. This arrangement, with one segment located diagonally above the other, reduces both the horizontal width and vertical height occupied by the electric heating element 21, thereby satisfying the limitations of both horizontal width and vertical height within the limited space of the chassis 1 of the outdoor unit 1000 of the air conditioner. Furthermore, the location of the second segment 211b above one side of the width direction of the first segment 211a also reduces interference with other structural reinforcements on the chassis 1 (such as the upward-protruding structure 11), making the integration of the heating device 2 with the chassis 1 more flexible.

[0039] Reference Figure 2 and Figure 3 In some embodiments, the angle α between the line connecting the center of the first pipe segment 211a and the center of the second pipe segment 211b and the horizontal line is 30°-70°. For example, the angle α can be 30°, 35°, 40°, 45°, 50°, 55°, 60°, 65°, 70°, etc. Thus, the second pipe segment 211b is located above one side of the first pipe segment 211a in the width direction, allowing the heat emitted by the electric heating tube 21 to diffuse in both the horizontal and vertical directions, forming a three-dimensional heat field distribution. This increases the heat coverage area of ​​the heating tube segment 211 and reduces the possibility of interference with other structural reinforcements on the chassis 1 (e.g., the upward-convex structure 11).

[0040] Reference Figure 2 and Figure 4In some embodiments, the first pipe segment 211a and the second pipe segment 211b have the same diameter, and the projection distance L between the first pipe segment 211a and the second pipe segment 211b in the horizontal plane is 0.5 to 1 times the diameter D of the first pipe segment 211a. Wherein, the projection distance L is the distance between the edges of the projections of the first pipe segment 211a and the second pipe segment 211b in the horizontal plane, that is, the minimum distance between the projections of the first pipe segment 211a and the second pipe segment 211b in the horizontal plane. For example, the projection distance between the first pipe segment 211a and the second pipe segment 211b in the horizontal plane can be 0.5 times, 0.6 times, 0.7 times, 0.8 times, 0.9 times, 1.0 times, etc., the diameter D of the first pipe segment 211a. For example, the first pipe segment 211a and the second pipe segment 211b have the same diameter. The diameter D of the first pipe segment 211a is 10mm, and the projection distance L between the first pipe segment 211a and the second pipe segment 211b in the horizontal plane can be 5mm-10mm.

[0041] In the above technical solution, the projected distance L between the first pipe segment 211a and the second pipe segment 211b in the horizontal plane is 0.5-1 times the diameter D of the first pipe segment 211a. This allows the heat fields formed by the heat emitted by the first pipe segment 211a and the second pipe segment 211b to partially overlap but not completely cover each other. This reduces the risk of local overheating caused by complete overlap of heat fields in a side-by-side layout, or insufficient heating in the area between the first pipe segment 211a and the second pipe segment 211b due to excessive spacing. Furthermore, when the temperature of the first pipe segment 211a and the second pipe segment 211b rises during operation, the projected distance L in the horizontal plane can also serve as a reserved space for the expansion of the electric heating tube 21, reducing the possibility of the pipe segments squeezing each other due to the expansion of the electric heating tube 21.

[0042] Reference Figure 1 In some embodiments, the chassis 1 has an upwardly projecting structure 11, at least a portion of which is located below the second pipe segment 211b. Exemplarily, the upwardly projecting structure 11 may be a reinforcing rib formed on the chassis 1 to enhance the structural strength of the chassis 1, or it may be a raised structure formed on the chassis 1 for connection and fixation with components (such as heat exchanger 200, fan 300, etc.) disposed on the chassis 1.

[0043] In the above technical solution, at least a portion of the convex structure 11 is located below the second pipe segment 211b, that is, the convex structure 11 and the second pipe segment 211b overlap at least partially in the vertical direction, thereby reducing the size of the chassis assembly 100; the second pipe segment 211b avoids the convex structure 11, so that the second pipe segment 211b and the convex structure 11 will not interfere with each other, thereby improving the space utilization of the chassis assembly 100.

[0044] Reference Figure 4 In some embodiments, both the first pipe segment 211a and the second pipe segment 211b are formed as rectangular rings with one side open, and the second pipe segment 211b is offset toward the area enclosed by the first pipe segment 211a. That is, both the first pipe segment 211a and the second pipe segment 211b are formed in a U-shape or C-shape, and the second pipe segment 211b is located inside the space enclosed by the first pipe segment 211a.

[0045] In the above technical solution, the heat exchanger 200 of the outdoor unit 1000 of the air conditioner is usually arranged in a "U" shape. The first pipe section 211a and the second pipe section 211b are both formed as rectangular rings with one side open, which can better fit the shape of the heat exchanger 200, thereby facilitating the removal of ice formed by water dripping from the heat exchanger 200 (such as defrosting water from the heat exchanger 200) and improving the defrosting efficiency of the electric heating tube 21. The second pipe section 211b is located inside the space enclosed by the first pipe section 211a, and the second pipe section 211b is higher than the first pipe section 211a. This allows the second pipe section 211b to avoid other structural reinforcements on the chassis 1 (such as the upward convex structure 11), reducing the possibility of interference between the second pipe section 211b and other structural reinforcements on the chassis 1 (such as the upward convex structure 11), and improving the space utilization of the chassis assembly 100.

[0046] Reference Figure 5 In some embodiments, the chassis 1 is rectangular, and each heating tube segment 211 includes a first extension segment 2111, a second extension segment 2112, and a third extension segment 2113 connected in sequence. The first extension segment 2111 and the third extension segment 2113 extend along the width direction F1 of the chassis 1, and the second extension segment 2112 extends along the length direction F2 of the chassis 1. The first extension segment 2111 and the third extension segment 2113 are respectively arranged relative to the center of the chassis 1 and close to the two short sides of the chassis 1. That is, the first extension segment 2111 is arranged relative to the center of the chassis 1 and close to one short side of the chassis 1, the third extension segment 2113 is arranged relative to the center of the chassis 1 and close to the other short side of the chassis 1, and the second extension segment 2112 is arranged relative to the center of the chassis 1 and close to one long side of the chassis 1.

[0047] In the above technical solution, the chassis 1 is rectangular. The first extension segment 2111 and the third extension segment 2113 extend along the width direction F1 of the chassis 1, and the second extension segment 2112 extends along the length direction F2 of the chassis 1, forming a rectangular ring with one side open. This allows for a better fit to the shape of the heat exchanger 200, which is beneficial for de-icing the ice formed by the water dripping from the heat exchanger 200 and improving the de-icing efficiency of the electric heating tube 21. The first extension segment 2111 and the third extension segment 2113 are respectively positioned close to the two short sides of the chassis 1, while the second extension segment 2112 is positioned close to one long side, making good use of the space near the edge of the chassis 1, which is especially suitable for the relatively compact chassis 1 structure.

[0048] Reference Figure 2 In some embodiments, the electric heating tube 21 is a single tube and includes a bent section 212. One of the adjacent ends of two adjacent heating tube sections 211 is connected through the bent section 212. That is, the electric heating tube 21 can extend in a serpentine manner. For example, the two ends of the electric heating tube 21 are respectively connected to a first power connection part 22 and a second power connection part 23. Multiple heating tube sections 211 are arranged sequentially along the direction from the first power connection part 22 to the second power connection part 23. The adjacent ends of two adjacent heating tube sections 211 along the extension direction of the electric heating tube 21 are connected through the bent section 212.

[0049] In the above technical solution, the electric heating tube 21 is a single tube connected to adjacent heating tube sections 211 via a bend section 212. This facilitates the arrangement of the electric heating tube 21 on the chassis 1 and makes the overall structure of the chassis assembly 100 more compact. The bend section 212 can be flexibly arranged according to the space of the chassis 1, and the bent portion of the bend section 212 can increase the heat radiation area. For example, as... Figure 1 As shown, the bend section 212 can radiate heat in multiple directions, which can enhance local heating. The drainage hole 13 is set near the bend section 212, which can improve the drainage reliability of the drainage hole 13.

[0050] Reference Figure 2 In some embodiments, the electric heating tube 21 is a single tube and includes a bent section 212, with adjacent ends of the first tube section 211a and the second tube section 211b connected by the bent section 212.

[0051] In the above technical solution, the electric heating tube 21 is a single tube, which is connected to the first tube segment 211a and the second tube segment 211b through the bent tube segment 212. This facilitates the arrangement of the electric heating tube 21 on the chassis 1 and makes the overall structure of the chassis assembly 100 more compact. In addition, the bending structure of the bent tube segment 212 can also disperse the stress generated by the electric heating tube 21 during thermal expansion and contraction, thereby improving the reliability of the electric heating tube 21.

[0052] Reference Figure 2 and Figure 3In some embodiments, the top 2121 of the bend 212 is higher than the second pipe section 211b. That is, the maximum height H1 of the top 2121 of the bend 212 from the first pipe section 211a is greater than the maximum height H2 of the second pipe section 211b from the first pipe section 211a, thereby making the turning radius of the bend 212 larger. After leaving the first pipe section 211a, the bend 212 extends upward and then downward to connect with the second pipe section 211b. Therefore, the metal casing of the electric heating tube 21 at the bend section 212 is not easily bent excessively, which would cause the tube wall to thin or crack easily. In addition, the distance between the second tube section 211b and the first tube section 211a is more reasonable, which can achieve partial overlap but not complete coverage of the heat field formed by the heat emitted by the first tube section 211a and the second tube section 211b. This can reduce the insufficient heating in the area between the first tube section 211a and the second tube section 211b caused by the excessive distance between the second tube section 211b and the first tube section 211a, and help improve the de-icing effect of the electric heating tube 21.

[0053] Reference Figure 4 In some embodiments, the first pipe segment 211a and the second pipe segment 211b have the same diameter, and the turning radius R of the bend segment 212 is greater than or equal to 2.5-5 times the diameter D of the first pipe segment 211a. The turning radius R of the bend segment 212 refers to the turning radius of the centerline of the bend segment 212. For example, R can be 2.5, 2.6, 2.7, 2.8, 2.9, 3, 3.5, 4, or 5 times D, etc. For example, the diameter D of the first pipe segment 211a is 10 mm, and the turning radius R of the bend segment 212 is greater than or equal to 25 mm. Of course, the larger the turning radius R of the bend segment 212, the less likely the pipe wall of the bend segment 212 is to bend and crack. Due to the space limitations of the chassis 1, the turning radius R of the bend segment 212 can be less than or equal to 5 times the diameter D of the first pipe segment 211a.

[0054] Therefore, the metal casing of the electric heating element 21 is less prone to wall thinning or cracking due to excessive bending at the bend section 212. At the bend section 212, the outer wall of the electric heating element 21 is subjected to tensile stress, while the inner wall is subjected to compressive stress. If the bending radius R is too small, the tensile stress will exceed the yield strength of the metal casing of the electric heating element 21, leading to wall thinning or even cracking. A larger bending radius R can disperse the stress and ensure the structural integrity of the metal casing of the electric heating element 21.

[0055] Reference Figure 6In some embodiments, the heating device 2 includes a first electrical contact 22 connected to one end of the first pipe section 211a away from the bend section 212, and a second electrical contact 23 connected to one end of the second pipe section 211b away from the bend section 212. The first electrical contact 22 extends upward relative to the first pipe section 211a, and the second electrical contact 23 extends upward relative to the second pipe section 211b.

[0056] In the above technical solution, both the first electrical connection part 22 and the second electrical connection part 23 extend upwards and are arranged in parallel, thus eliminating the need for operators to adjust the electrical connection direction or angle, reducing the complexity of electrical connection for the electric heating element 21. Furthermore, both the first electrical connection part 22 and the second electrical connection part 23 are located at the end furthest from the bend section 212, meaning the electrical connections are concentrated on one side. This reduces the impact of electrical connection of the electric heating element 21 on other pipeline installations and makes maintenance of the electric heating element 21 more convenient. During maintenance of the electric heating element 21, operators do not need to check multiple electrical connections; they only need to complete electrical status checks and wiring replacements on one side, shortening maintenance time and reducing maintenance costs.

[0057] Reference Figure 4 In some embodiments, the chassis assembly 100 includes a plurality of double pipe clamps 3 spaced apart along the extension direction of the first pipe segment 211a. The double pipe clamps 3 cooperate with the first pipe segment 211a and the second pipe segment 211b respectively to restrict the relative position of the first pipe segment 211a and the second pipe segment 211b. The specific structure of the double pipe clamps 3 is not limited. For example, the double pipe clamps 3 can be made of metal or engineering plastic and have clamping holes that match the outer diameter of the first pipe segment 211a and the second pipe segment 211b. Thus, the double pipe clamps 3 can simultaneously clamp the first pipe segment 211a and the second pipe segment 211b, restricting the movement of the first pipe segment 211a and the second pipe segment 211b in both horizontal and vertical directions, thereby ensuring the stability of the relative position of the first pipe segment 211a and the second pipe segment 211b.

[0058] In the above technical solution, multiple double-tube clamps 3 are spaced apart along the extension direction of the first tube segment 211a, thereby providing multiple fixing points at different positions of the electric heating tube 21. This multi-point fixing method can reduce the deformation or damage of the electric heating tube 21 caused by local stress concentration, thereby improving the reliability of the electric heating tube 21. In addition, the double-tube clamps 3 can maintain the relative position of the first tube segment 211a and the second tube segment 211b, thereby achieving partial overlap but not complete coverage of the heat field formed by the heat emitted by the first tube segment 211a and the second tube segment 211b. This can reduce local overheating caused by complete overlap of the heat field in the side-by-side layout, or insufficient heating in the area between the first tube segment 211a and the second tube segment 211b due to excessive spacing.

[0059] Reference Figure 5In some embodiments, the second pipe segment 211b is higher than the first pipe segment 211a. The chassis assembly 100 also includes a plurality of single pipe clamps 4 spaced apart along the extension direction of the first pipe segment 211a. The single pipe clamps 4 cooperate with the first pipe segment 211a and are fixedly installed on the chassis 1 to limit the relative position of the first pipe segment 211a and the chassis 1. The specific structure of the single pipe clamps 4 is not limited. For example, the single pipe clamps 4 can be made of metal or engineering plastic and have clamping holes that match the outer diameter of the first pipe segment 211a. The single pipe clamps 4 can be installed on the chassis 1 by bolts, clips, or other fixing methods, and can limit the movement of the first pipe segment 211a in the horizontal and vertical directions, thereby ensuring the stability of the relative position of the first pipe segment 211a and the chassis 1.

[0060] In the above technical solution, multiple single-pipe clamps 4 are spaced apart along the extension direction of the first pipe segment 211a, providing multiple support and fixing points for the electric heating tube 21. These multiple support and fixing points can effectively disperse stress and reduce the bending or deformation of the first pipe segment 211a due to excessive local stress. The single-pipe clamps 4 are fixedly installed on the chassis 1, providing fixed support for the entire electric heating tube 21. Combined with the double-pipe clamps 3, they restrict the relative position of the first pipe segment 211a and the second pipe segment 211b, avoiding over-limiting problems. This allows the entire electric heating tube 21 to be well fixed and makes it easy to maintain the distance between the first pipe segment 211a and the second pipe segment 211b, thereby improving the de-icing effect of the electric heating tube 21.

[0061] Reference Figure 1 In some embodiments, the chassis 1 includes a water collection tank 12, an electric heating tube 21 is disposed in the water collection tank 12, and a drain hole 13 communicating with the water collection tank 12 is provided on the chassis 1. The chassis 1 has an upward convex structure 11, which helps to define the water collection tank 12. The number and distribution of the drain holes 13 are not limited.

[0062] In the above technical solution, the electric heating tube 21 is located in the water collection tank 12, which facilitates the melting of ice in the water collection tank 12. The chassis 1 is provided with a drain hole 13 that communicates with the water collection tank 12, which reduces the flow path length of the water formed by the melting ice and makes it easier to drain the water formed by the melting ice. The chassis 1 has an upward convex structure 11, and the upward convex structure 11 participates in defining the water collection tank 12. Combined with the fact that the second pipe section 211b is higher than the first pipe section 211a, the second pipe section 211b can avoid the upward convex structure 11 that participates in defining the water collection tank 12, reducing the possibility of interference between the second pipe section 211b and the upward convex structure 11, and improving the space utilization of the chassis assembly 100.

[0063] Reference Figure 7 According to the second aspect of the present invention, the outdoor unit 1000 of the air conditioner includes the chassis assembly 100 of any embodiment of the first aspect of the present invention.

[0064] According to the embodiment of the present utility model, by providing the chassis assembly 1000 of the first aspect, the operational reliability of the outdoor unit 1000 of the air conditioner can be improved.

[0065] Reference Figure 1 and Figure 7 In some embodiments, the outdoor unit 1000 of the air conditioner includes a heat exchanger 200 and a fan 300, with an electric heating element 21 located below the heat exchanger 200 and / or the fan 300. The heat exchanger 200 of the outdoor unit 1000 is prone to frost formation. When the ambient temperature is below 0°C, the water generated during defrosting may freeze on the chassis 1, potentially clogging the drain hole 13 or forming ice that can compress the fan blades of the fan 300. Therefore, installing the electric heating element 21 on the chassis 1 of the outdoor unit 1000 reduces the likelihood of the water generated during defrosting freezing or allows for timely melting of accumulated ice, preventing ice buildup from affecting the normal operation of the outdoor unit 1000. The electric heating element 21 is located below the heat exchanger 200 and / or the fan 300. This helps the electric heating element 21 to remove ice formed by water dripping from the heat exchanger 200, improves the reliability of drainage from the drain hole 13, and reduces the possibility of the fan blades of the fan 300 colliding with ice, thereby improving the reliability of the fan 300 operation.

[0066] Other components of the chassis assembly 100 according to the present invention, such as reinforcing ribs and mounting holes, as well as its operation, are known to those skilled in the art and will not be described in detail here.

[0067] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0068] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0069] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0070] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0071] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0072] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A chassis assembly, characterized in that, include: Chassis, the chassis being used for the outdoor unit of the air conditioner; and A heating device, comprising an electric heating tube disposed on the chassis, the electric heating tube comprising multiple heating tube segments extending in parallel.

2. The chassis assembly according to claim 1, characterized in that, The electric heating tube includes two heating tube segments, namely a first tube segment and a second tube segment, wherein the second tube segment is located on one side of the width direction of the first tube segment and is higher than the first tube segment.

3. The chassis assembly according to claim 2, characterized in that, The angle between the line connecting the center of the first pipe segment and the center of the second pipe segment and the horizontal line is 30°-70°. And / or, the first pipe segment and the second pipe segment have the same diameter, and the projection distance between the first pipe segment and the second pipe segment in the horizontal plane is 0.5-1 times the diameter of the first pipe segment.

4. The chassis assembly according to claim 2, characterized in that, The chassis has an upwardly convex structure, at least a portion of which is located below the second pipe section.

5. The chassis assembly according to claim 2, characterized in that, Both the first pipe segment and the second pipe segment are formed as rectangular rings with one side open, and the second pipe segment is offset toward the area enclosed by the first pipe segment.

6. The chassis assembly according to claim 1, characterized in that, The chassis is rectangular, and each heating tube segment includes a first extension segment, a second extension segment, and a third extension segment connected in sequence. The first extension segment and the third extension segment extend along the width direction of the chassis, and the second extension segment extends along the length direction of the chassis. The first extension segment and the third extension segment are respectively located near the two short sides of the chassis relative to the center of the chassis, and the second extension segment is located near the one long side of the chassis relative to the center of the chassis.

7. The chassis assembly according to claim 1, characterized in that, The electric heating tube is a single tube and includes a bend, with one of the adjacent ends of two adjacent heating tube segments connected through the bend.

8. The chassis assembly according to claim 2, characterized in that, The electric heating element is a single tube and includes a bent section, with the adjacent ends of the first and second tube sections connected by the bent section.

9. The chassis assembly according to claim 8, characterized in that, The top of the bend is higher than the second pipe section; And / or, the first pipe segment and the second pipe segment have the same diameter, and the turning radius of the bend is greater than or equal to 2.5-5 times the diameter of the first pipe segment.

10. The chassis assembly according to claim 8, characterized in that, The heating device includes a first electrical contact connected to the end of the first pipe segment away from the bend, and a second electrical contact connected to the end of the second pipe segment away from the bend. The first electrical contact extends upward relative to the first pipe segment, and the second electrical contact extends upward relative to the second pipe segment.

11. The chassis assembly according to claim 2, characterized in that, The chassis assembly includes a plurality of double pipe clamps spaced apart along the extension direction of the first pipe segment. The double pipe clamps cooperate with the first pipe segment and the second pipe segment respectively to restrict the relative positions of the first pipe segment and the second pipe segment.

12. The chassis assembly according to claim 11, characterized in that, The second pipe segment is higher than the first pipe segment. The chassis assembly also includes a plurality of single pipe clamps spaced apart along the extension direction of the first pipe segment. The single pipe clamps cooperate with the first pipe segment and are fixedly installed on the chassis to limit the relative position of the first pipe segment and the chassis.

13. The chassis assembly according to any one of claims 1-12, characterized in that, The chassis includes a water collection tank, the electric heating tube is disposed in the water collection tank, the chassis is provided with a drain hole communicating with the water collection tank, and the chassis has an upward convex structure, which participates in defining the water collection tank.

14. An outdoor unit for an air conditioner, characterized in that, include: The chassis assembly according to any one of claims 1-13.

15. The outdoor unit of the air conditioner according to claim 14, characterized in that, The outdoor unit of the air conditioner includes a heat exchanger and a fan, and the electric heating element is located below the heat exchanger and / or the fan.

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