Chassis and overhead air conditioner

Abstract

The utility model provides a chassis and an overhead air conditioner. The chassis comprises a left beam, a right beam, a front partition plate, a middle partition plate, a rear partition plate, a front bottom plate and a rear bottom plate. The front partition plate, the middle partition plate and the rear partition plate are vertically arranged at intervals in the front-back direction; the front bottom plate and the rear bottom plate are horizontally arranged in a front-back spaced mode. The front partition plate, the middle partition plate and the rear partition plate are connected between the left beam and the right beam, the front bottom plate is connected among the left beam, the front partition plate, the right beam and the middle partition plate, and the rear bottom plate is connected among the left beam, the middle partition plate, the right beam and the rear partition plate. The left beam, the right beam, the front partition plate, the middle partition plate, the rear partition plate, the front bottom plate and the rear bottom plate are mainly connected in a riveting mode and auxiliary in a welding mode, welding tools are reduced, the structure is simple, positioning can be achieved through riveting by a single person, the structural strength is guaranteed, the labor intensity of workers can be reduced, the production efficiency can be improved, and the weight of the chassis can be reduced.

Description

Technical Field

[0001] This utility model belongs to the field of air conditioning technology, and in particular relates to a chassis and roof-mounted air conditioner. Background Technology

[0002] In the field of bus air conditioning, with the development and technological changes in the bus industry, roof-mounted bus air conditioners have become increasingly popular due to their advantages such as convenient installation and effective space saving. Driven by market demand, their application has become more and more widespread, gradually occupying an important position in mainstream bus air conditioning systems. However, current roof-mounted bus air conditioning technology is not perfect, generally suffering from drawbacks such as large weight and excessive size. This not only affects the overall weight distribution and load-bearing capacity of the bus, but also limits the further optimization and utilization of the bus's interior space to some extent.

[0003] Meanwhile, the manufacturing process of bus chassis involves multiple complex steps, including sheet metal processing, welding, and grinding. Welding and grinding, in particular, require significant human and material resources due to their demanding nature and large workload. The chassis assembly process, in particular, often requires two workers working together. This labor-intensive operation severely restricts production efficiency, increases production costs, and struggles to meet the demands of increasing bus production scale and delivery cycles. Therefore, improvements and innovations in technology and processes are urgently needed. Utility Model Content

[0004] In view of this, the present invention provides a chassis and a roof-mounted air conditioner to solve the problems of complex chassis production processes, high manpower and material resources required, high production costs and low production efficiency in the prior art.

[0005] This utility model provides a chassis for a roof-mounted air conditioner; the roof-mounted air conditioner includes an evaporator assembly, a compressor assembly, and a condenser assembly; the chassis includes a left beam, a right beam, a front partition, a middle partition, a rear partition, a front bottom plate, and a rear bottom plate;

[0006] The left and right beams are arranged opposite each other and spaced apart; the front, middle and rear partitions are arranged vertically and spaced apart; the front and rear bottom plates are arranged horizontally and spaced apart.

[0007] The front partition, middle partition, and rear partition are all connected between the left beam and the right beam. The front bottom plate is connected between the left beam, the front partition, the right beam, and the middle partition. The rear bottom plate is connected between the left beam, the middle partition, the right beam, and the rear partition. The front partition, middle partition, left beam, right beam, and front bottom plate form a front cavity, which is used to house the evaporator assembly. The middle partition, rear partition, left beam, right beam, and rear bottom plate form a middle cavity, which is used to house the compressor assembly. The rear partition, left beam, and right beam form a rear cavity, which is used to house the condenser assembly.

[0008] The connection methods between the partition and the corresponding beam and the corresponding bottom plate include at least riveting.

[0009] Alternatively, on the front of the chassis, the left beam, right beam, and front floor plate are connected by riveting; on the back of the chassis, the left beam, right beam, and front floor plate are connected by intermittent welding.

[0010] Further optionally, on the front side of the chassis, the left beam is bent to form a first vertical wall and a left beam overlap on the side near the front floor plate, and the front floor plate is bent to form a left vertical wall and a left overlap on the side near the left beam; the first vertical wall of the left beam and the left vertical wall of the front floor plate cooperate, and the left beam overlap and the left overlap of the front floor plate cooperate and are connected by riveting;

[0011] On one side of the front of the chassis, the right beam is bent near the front floor plate to form a first vertical wall and a right beam overlap. The front floor plate is bent near the right beam to form a right vertical wall and a right overlap. The first vertical wall of the right beam and the right vertical wall of the front floor plate are fitted together, and the right beam overlap and the right overlap of the front floor plate are fitted together and connected by riveting.

[0012] Further optionally, a left through-hole is formed on the left vertical wall of the front base plate, and a right through-hole is formed on the right vertical wall of the front base plate; both the left and right through-holes are used to fix the drain pipe, and the drain pipe is used to discharge the condensate generated by the evaporator assembly inside the front base plate;

[0013] The left vertical wall of the front base plate also has a left lifting lug hole, and the right vertical wall of the front base plate also has a right lifting lug hole; both the left and right lifting lug holes are used for lifting the chassis.

[0014] Further optionally, the front sidewall of the front partition is connected to the left beam, right beam and front bottom plate by intermittent welding, and the rear sidewall of the front partition is connected to the left beam, right beam and front bottom plate by riveting.

[0015] The front sidewall of the partition plate is connected to the left beam, right beam, and front bottom plate by intermittent welding, and the rear sidewall of the partition plate is connected to the left beam, right beam, and rear bottom plate by riveting.

[0016] The front sidewall of the rear partition is connected to the left beam, right beam, and rear bottom plate by intermittent welding, and the rear sidewall of the front partition is connected to the left beam and right beam by riveting.

[0017] Further optionally, the left beam has a second vertical wall on the side away from the front bottom plate, and the right beam has a second vertical wall on the side away from the front bottom plate;

[0018] The rear sidewall of the front partition is bent to form a front partition overlap. The left end of the front partition overlap mates with the second vertical wall of the left beam and is connected by riveting. The right end of the front partition overlap mates with the second vertical wall of the right beam and is connected by riveting. The middle part of the front partition overlap mates with the front end of the front bottom plate and is connected by riveting.

[0019] The rear sidewall of the partition plate is bent to form a partition plate overlap. The left end of the partition plate overlap is engaged with the second vertical wall of the left beam and connected by riveting. The right end of the partition plate overlap is engaged with the second vertical wall of the right beam and connected by riveting. The middle part of the partition plate overlap is engaged with the front end of the rear bottom plate and connected by riveting.

[0020] The rear sidewall of the rear partition is bent to form a rear partition overlap. The left end of the rear partition overlap mates with the second vertical wall of the left beam and is connected by riveting. The right end of the rear partition overlap mates with the second vertical wall of the right beam and is connected by riveting.

[0021] Further optionally, the evaporator assembly includes a left evaporator fan and a right evaporator fan; the chassis also includes a left bracket and a right bracket, both of which are disposed within the front cavity;

[0022] The left support is mounted on the left beam and is used to mount the left evaporator fan; the right support is mounted on the right beam and is used to mount the right evaporator fan.

[0023] Further optionally, the evaporator assembly includes an evaporator, the evaporator including a left evaporator and a right evaporator; the front base plate is arc-shaped and forms a return air vent; the left evaporator is located to the left of the return air vent, and the right evaporator is located to the right of the return air vent;

[0024] The roof-mounted air conditioner also includes a fresh air device; the front partition forms a fresh air inlet, which is used to house the fresh air device.

[0025] This utility model also provides a top-mounted air conditioner, including an evaporator assembly, a compressor assembly, a condenser assembly, and a chassis as described in any one of the above; the evaporator assembly is disposed in the front cavity and on the front base plate; the compressor assembly is disposed in the middle cavity and on the rear base plate; and the condenser assembly is disposed in the rear cavity.

[0026] Further optionally, the evaporator assembly includes an evaporator on which a PTC heater is disposed;

[0027] The evaporator includes a left evaporator and a right evaporator; the left evaporator and the right evaporator are connected by a connecting bracket and are arranged opposite each other; the left evaporator is located on the left side of the return air vent of the front bottom plate, and the right evaporator is located on the right side of the return air vent of the front bottom plate.

[0028] The heat exchange surfaces of the left and right evaporators are both inclined relative to the vertical plane, and the upper ends of the left and right evaporators are close to each other, while the lower ends of the left and right evaporators are far apart.

[0029] Further optionally, the roof-mounted air conditioner also includes an electronic control component; an air duct is formed between the left evaporator and the right evaporator, and the air duct is connected to the return air vent; the electronic control component is disposed within the air duct.

[0030] Further optionally, a left through-hole is formed at both the front and rear ends of the left vertical wall of the front base plate, and a right through-hole is formed at both the front and rear ends of the right vertical wall of the front base plate.

[0031] The top-mounted air conditioner also includes a drain pipe, which includes two left drain pipes and two right drain pipes. One end of the left drain pipe is fixed in the left through-hole, and the other end of the left drain pipe is fixed on the left bracket. One end of the right drain pipe is fixed in the right through-hole, and the other end of the right drain pipe is fixed on the right bracket.

[0032] Alternatively, the roof-mounted air conditioner is an air conditioner for new energy buses.

[0033] Compared with the prior art, the main advantages of this utility model are:

[0034] The connection of the left beam, right beam, front partition, middle partition, rear partition, front bottom plate, and rear bottom plate is mainly riveting, supplemented by welding. This reduces welding tooling, simplifies the structure, and allows a single person to position the components by riveting. This ensures structural strength while reducing the labor intensity of workers, improving production efficiency, and reducing the weight of the chassis. It also solves the problems of complex chassis production processes, high manpower and material resources, high production costs, and low production efficiency in existing technologies. Attached Figure Description

[0035] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0036] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0037] Figure 1a A schematic diagram of the front structure of the chassis embodiment provided by this utility model;

[0038] Figure 1b This is a schematic diagram of the reverse side structure of the chassis embodiment provided by this utility model;

[0039] Figure 2a and Figure 2b A schematic diagram of the axle-side front structure of the chassis embodiment provided by this utility model;

[0040] Figure 2c A schematic diagram of the reverse side structure of the chassis embodiment provided by this utility model;

[0041] Figure 2d for Figure 2a Enlarged view of a portion of the image;

[0042] Figure 2e for Figure 2b Enlarged view of a portion of the image;

[0043] Figure 3 This is an exploded structural diagram of a chassis embodiment provided by this utility model;

[0044] Figure 4 A schematic diagram of the evaporator embodiment provided by this utility model;

[0045] Figure 5a A top view of an embodiment of the roof-mounted air conditioner provided by this utility model;

[0046] Figure 5b A schematic diagram of the axial structure of an embodiment of the roof-mounted air conditioner provided by this utility model;

[0047] In the picture:

[0048] 1-Chassis; 11-Left beam; 111-First vertical wall of left beam; 112-Second vertical wall of left beam; 113-Left beam edge; 12-Right beam; 121-First vertical wall of right beam; 122-Second vertical wall of right beam; 123-Right beam edge; 13-Front partition; 131-Front partition edge; 132-Fresh air inlet; 14-Middle partition; 141-Middle partition edge; 15-Rear partition; 151-Rear partition edge; 1 6-Front base plate; 161-Left vertical wall of front base plate; 162-Left edge of front base plate; 163-Right vertical wall of front base plate; 164-Right edge of front base plate; 165-Left through-hole; 166-Right through-hole; 167-Left lifting lug hole; 168-Right lifting lug hole; 169-Return air vent; 17-Rear base plate; 181-Front cavity; 182-Middle cavity; 183-Rear cavity; 191-Left bracket; 192-Right bracket;

[0049] 2-Evaporator assembly; 21-Left evaporator fan; 22-Right evaporator fan; 23-Left evaporator; 24-Right evaporator; 25-Connecting bracket; 26-PTC heater; 27-Air duct;

[0050] 31-Compressor assembly; 32-Condenser assembly; 33-Fresh air unit; 34-Electrical control components; 351-Left drain pipe; 352-Right drain pipe; 36-Power electrical box. Detailed Implementation

[0051] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0052] The terminology used in the embodiments of this utility model is for the purpose of describing particular embodiments only and is not intended to limit the utility model. The singular forms “a,” “said,” and “the” used in the embodiments of this utility model and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise; “multiple” generally includes at least two, but does not exclude the inclusion of at least one.

[0053] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0054] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0055] In the field of bus air conditioning, roof-mounted bus air conditioners are becoming increasingly popular and the mainstream choice due to their convenient installation and space-saving advantages. However, they also have drawbacks such as large weight and size, which affect the weight distribution and interior space utilization of buses. At the same time, bus chassis production involves many complex processes, with welding and grinding consuming a lot of manpower and resources, and chassis assembly requiring two people to work together. This labor-intensive model restricts the improvement of production efficiency and makes it difficult to meet the needs of bus production, thus requiring urgent technological and process improvements and innovations.

[0056] This utility model creatively provides a chassis including a left beam, a right beam, a front partition, a middle partition, a rear partition, a front bottom plate, and a rear bottom plate. The front partition, middle partition, and rear partition are all connected between the left beam and the right beam. The front bottom plate is connected between the left beam, the front partition, the right beam, and the middle partition. The rear bottom plate is connected between the left beam, the middle partition, the right beam, and the rear partition. The connection method of the left beam, the right beam, the front partition, the middle partition, the rear partition, the front bottom plate, and the rear bottom plate is mainly riveting, supplemented by welding, which reduces welding tooling, simplifies the structure, and allows a single person to position the chassis by riveting. This ensures structural strength, reduces the labor intensity of workers, improves production efficiency, and reduces the weight of the chassis.

[0057] Example 1

[0058] like Figures 1a to 3 As shown, this embodiment provides a chassis 1 for roof-mounted air conditioning, especially for roof-mounted air conditioning in new energy buses; the roof-mounted air conditioning includes an evaporator assembly 2, a compressor assembly 31 and a condenser assembly 32; the chassis 1 includes a left beam 11, a right beam 12, a front partition 13, a middle partition 14, a rear partition 15, a front floor plate 16 and a rear floor plate 17;

[0059] The left beam 11 and right beam 12 are arranged opposite each other and spaced apart. The front partition 13, middle partition 14 and rear partition 15 are arranged vertically with space between them, that is, the main surface of the front partition 13, the main surface of the middle partition 14 and the main surface of the rear partition 15 are all parallel to the vertical plane. The front bottom plate 16 and rear bottom plate 17 are arranged horizontally with space between them, that is, the main surface of the front bottom plate 16 and the main surface of the rear bottom plate 17 are all parallel to the horizontal plane.

[0060] The front partition 13, middle partition 14, and rear partition 15 are all connected between the left beam 11 and the right beam 12. The front bottom plate 16 is connected between the left beam 11, the front partition 13, the right beam 12, and the middle partition 14. The rear bottom plate 17 is connected between the left beam 11, the middle partition 14, the right beam 12, and the rear partition 15. The front partition 13, the middle partition 14, the left beam 11, the right beam 12, and the front bottom plate 16 form a front cavity 181, which is used to house the evaporator assembly 2. The middle partition 14, the rear partition 15, the left beam 11, the right beam 12, and the rear bottom plate 17 form a middle cavity 182, which is used to house the compressor assembly 31. The rear partition 15, the left beam 11, and the right beam 12 form a rear cavity 183, which has a hollow bottom and is used to house the condenser assembly 32.

[0061] The connection methods between the partition and the corresponding beam and the corresponding bottom plate include at least riveting;

[0062] The connection between the partition plate and the corresponding beam and the corresponding bottom plate is mainly riveting, supplemented by welding, which reduces welding tooling, simplifies the structure, processing technology and assembly process, reduces the labor intensity of workers and improves production efficiency.

[0063] The connection method between each beam and the corresponding base plate is further explained below; On the front of the chassis 1, the left beam 11, the right beam 12 and the front base plate 16 are connected by riveting, specifically by rivets, to form a positioning; On the back of the chassis 1, the left beam 11, the right beam 12 and the front base plate 16 are connected by intermittent welding, that is, the welding points are set at intervals, and each partition, each beam and each base plate are assembled and spliced ​​and fixed by riveting and welding.

[0064] Furthermore, on the front side of the chassis 1, the left beam 11 is bent near the front floor plate 16 to form a first vertical wall 111 and a left beam edge 113, and the front floor plate 16 is bent near the left beam 11 to form a left vertical wall 161 and a left edge 162; the first vertical wall 111 and the left vertical wall 161 of the left beam cooperate, and the left beam edge 113 and the left edge 162 of the front floor plate cooperate and are connected by riveting;

[0065] On one side of the front of the chassis 1, the right beam 12 is bent near the front floor plate 16 to form a first vertical wall 121 and a right beam edge 123. The front floor plate 16 is bent near the right beam 12 to form a right vertical wall 163 and a right edge 164. The first vertical wall 121 and the right vertical wall 163 of the right beam cooperate, and the right edge 123 and the right edge 164 of the front floor plate cooperate and are connected by riveting.

[0066] In addition, a left through-hole 165 is formed on the left vertical wall 161 of the front base plate, and a right through-hole 166 is formed on the right vertical wall 163 of the front base plate; both the left through-hole 165 and the right through-hole 166 are used to fix the drain pipe 35, and the drain pipe 35 is used to drain the condensate generated by the evaporator assembly 2 inside the front base plate 16.

[0067] The left vertical wall 161 of the front base plate also forms a left lifting lug hole 167, and the right vertical wall 163 of the front base plate also forms a right lifting lug hole 168; both the left lifting lug hole 167 and the right lifting lug hole 168 are used for lifting the chassis 1; integrating the lifting lug holes and the front base plate 16 into one piece increases structural reliability, reduces the amount of welding work on the chassis 1, and improves safety.

[0068] In addition, in order to adapt to the structure of the bus roof, the front floor plate 16 is designed with an arc shape to fit the structure of the bus roof and fit snugly against the roof.

[0069] The connection methods between each partition and the corresponding beam and the corresponding bottom plate are further explained below; the front side wall of the front partition 13 is connected to the left beam 11, the right beam 12 and the front bottom plate 16 by intermittent welding, and the rear side wall of the front partition 13 is connected to the left beam 11, the right beam 12 and the front bottom plate 16 by riveting, specifically by rivets, to form a positioning.

[0070] The front sidewall of the partition plate 14 is connected to the left beam 11, the right beam 12, and the front bottom plate 16 by intermittent welding, and the rear sidewall of the partition plate 14 is connected to the left beam 11, the right beam 12, and the rear bottom plate 17 by riveting.

[0071] The front sidewall of the rear partition 15 is connected to the left beam 11, the right beam 12, and the rear bottom plate 17 by intermittent welding, and the rear sidewall of the front partition 13 is connected to the left beam 11 and the right beam 12 by riveting.

[0072] Furthermore, the left beam 11 has a second vertical wall 112 on the side away from the front bottom plate 16, and the right beam 12 has a second vertical wall 122 on the side away from the front bottom plate 16.

[0073] The rear sidewall of the front partition 13 is bent to form a front partition edge 131. The left end of the front partition edge 131 is engaged with the second vertical wall 112 of the left beam and connected by riveting. The right end of the front partition edge 131 is engaged with the second vertical wall 122 of the right beam and connected by riveting. The middle part of the front partition edge 131 is engaged with the front end of the front bottom plate 16 and connected by riveting.

[0074] The rear side wall of the partition plate 14 is bent to form a partition plate overlap 141. The left end of the partition plate overlap 141 is engaged with the second vertical wall 112 of the left beam and connected by riveting. The right end of the partition plate overlap 141 is engaged with the second vertical wall 122 of the right beam and connected by riveting. The middle part of the partition plate overlap 141 is engaged with the front end of the rear bottom plate 17 and connected by riveting.

[0075] The rear sidewall of the rear partition 15 is bent to form a rear partition edge 151. The left end of the rear partition edge 151 is engaged with the second vertical wall 112 of the left beam and connected by riveting. The right end of the rear partition edge 151 is engaged with the second vertical wall 122 of the right beam and connected by riveting.

[0076] The following is a further explanation of the specific method of the evaporator; the evaporator assembly 2 includes a left evaporator fan 21 and a right evaporator fan 22; the chassis 1 also includes a left bracket 191 and a right bracket 192, both of which are located in the front cavity 181;

[0077] The left bracket 191 is mounted on the left beam 11 and is used to mount the left evaporator fan 21; the right bracket 192 is mounted on the right beam 12 and is used to mount the right evaporator fan 22.

[0078] Furthermore, the evaporator assembly 2 includes an evaporator, which includes a left evaporator 23 and a right evaporator 24; the front base plate 16 is arc-shaped and has a return air inlet 169; the left evaporator 23 is located on the left side of the return air inlet 169, and the right evaporator 24 is located on the right side of the return air inlet 169.

[0079] In addition, the roof-mounted air conditioner also includes a fresh air device 33; the front partition 13 forms a fresh air inlet 132, which is used to install the fresh air device 33.

[0080] In summary, by assembling the various components of chassis 1 together and fixing them with rivets, the amount of welding and grinding is reduced. The lightweight design improves production efficiency and reduces processing costs. The integrated lifting lug design facilitates the installation of the air conditioning unit and reduces the probability of safety hazards.

[0081] Example 2

[0082] like Figure 1a As shown in Figure 5, this embodiment provides a roof-mounted air conditioner, which is an air conditioner for new energy buses. The roof-mounted air conditioner includes an evaporator assembly 2, a compressor assembly 31, a condenser assembly 32, a fresh air device 33, and a chassis 1 as described above. The evaporator assembly 2 is disposed in the front cavity 181 and on the front floor plate 16. The compressor assembly 31 is disposed in the middle cavity 182 and on the rear floor plate 17. The condenser assembly 32 is disposed in the rear cavity 183.

[0083] Evaporator assembly 2 includes an evaporator, a connecting frame 25 and an evaporation fan. The evaporator includes a left evaporator 23 and a right evaporator 24, which are connected by the connecting frame 25. The evaporation fan includes a left evaporation fan 21 and a right evaporation fan 22. The left evaporation fan 21 is mounted on the left support 191 and the right evaporation fan 22 is mounted on the right support 192.

[0084] The condenser assembly 32 includes a condenser and a condenser fan, with the condenser fan positioned above the condenser for outdoor heat exchange in the air conditioner.

[0085] The compressor assembly 31 includes a compressor and refrigerant pipes. The compressor is connected to the evaporator and condenser via refrigerant pipes for controlling the battery and regulating the vehicle interior temperature. A power supply box 36 is located on the left side of the compressor, and power is supplied from the power supply box 36.

[0086] The fresh air device 33 is installed at the fresh air inlet 132 of the front partition 13 to improve the air cleanliness inside the vehicle.

[0087] Evaporator assembly 2, compressor assembly 31, condenser assembly 32, and fresh air unit 33 are all integrated on chassis 1.

[0088] Furthermore, both the left evaporator 23 and the right evaporator 24 are equipped with PTC heaters 26;

[0089] The left evaporator 23 and the right evaporator 24 are connected by a connecting bracket 25 and are arranged opposite each other. The left evaporator 23 is located on the left side of the return air vent 169 of the front base plate 16, and the right evaporator 24 is located on the right side of the return air vent 169 of the front base plate 16.

[0090] The heat exchange surfaces of the left evaporator 23 and the right evaporator 24 are both inclined relative to the vertical plane. The upper ends of the left evaporator 23 and the right evaporator 24 are close to each other, while the lower ends of the left evaporator 23 and the right evaporator 24 are far apart. The left evaporator 23 and the right evaporator 24 are symmetrically arranged and inclined, which reduces the height of the whole unit, improves the return air efficiency, improves the standardization of the air conditioning, and makes the overall appearance of the vehicle more integrated.

[0091] In addition, the top-mounted air conditioner also includes an electronic control component 34; an air passage 27 is formed between the left evaporator 23 and the right evaporator 24, and the air passage 27 is connected to the return air vent 169. The flow area of ​​the air passage gradually decreases from bottom to top; the electronic control component 34 is set in the air passage 27 to improve heat dissipation efficiency.

[0092] The following further explains the installation method of the drain pipe 35. The front end and rear end of the left vertical wall 161 of the front base plate are both formed with left through-holes 165, and the front end and rear end of the right vertical wall 163 of the front base plate are both formed with right through-holes 166.

[0093] The top-mounted air conditioner also includes drain pipes 35, which include two left drain pipes 351 and two right drain pipes 352. One end of the left drain pipe 351 is fixed in the left through-hole 165, and the other end of the left drain pipe 351 is fixed on the left bracket 191. One end of the right drain pipe 352 is fixed in the right through-hole 166, and the other end of the right drain pipe 352 is fixed on the right bracket 192. Thus, two left drain pipes 351 are respectively provided at the two left corners of the front base plate 16, with one end of the left drain pipe 351 fixed in the corresponding left through-hole 165 and the other end set at the corresponding position of the left bracket 191. Two right drain pipes 352 are respectively provided at the two right corners of the front base plate 16, with one end of the right drain pipe 352 fixed in the corresponding right through-hole 166 and the other end set at the corresponding position of the right bracket 192.

[0094] Exemplary embodiments of this disclosure have been specifically shown and described above. It should be understood that this disclosure is not limited to the detailed structures, arrangements, or implementations described herein; rather, this disclosure is intended to cover various modifications and equivalent arrangements contained within the spirit and scope of the appended claims.

Claims

1. A chassis (1) for a rooftop air conditioner; said rooftop air conditioner comprising an evaporator assembly (2), a compressor assembly (31), and a condenser assembly (32); characterized in that, The chassis (1) includes a left beam (11), a right beam (12), a front partition (13), a middle partition (14), a rear partition (15), a front floor plate (16), and a rear floor plate (17); The left beam (11) and right beam (12) are arranged opposite each other and spaced apart; the front partition (13), middle partition (14) and rear partition (15) are spaced apart and vertically arranged; the front bottom plate (16) and rear bottom plate (17) are spaced apart and horizontally arranged. The front partition (13), middle partition (14), and rear partition (15) are all connected between the left beam (11) and the right beam (12). The front bottom plate (16) is connected between the left beam (11), the front partition (13), the right beam (12), and the middle partition (14). The rear bottom plate (17) is connected between the left beam (11), the middle partition (14), the right beam (12), and the rear partition (15). 6) A front cavity (181) is formed, which is used to house the evaporator assembly (2); the middle partition (14), the rear partition (15), the left beam (11), the right beam (12) and the rear bottom plate (17) are formed to form a middle cavity (182), which is used to house the compressor assembly (31); the rear partition (15), the left beam (11) and the right beam (12) are formed to form a rear cavity (183), which is used to house the condenser assembly (32); The connection methods between the partition and the corresponding beam and the corresponding bottom plate include at least riveting.

2. The chassis (1) according to claim 1, characterized in that, On the front of the chassis (1), the left beam (11), the right beam (12) and the front bottom plate (16) are connected by riveting; on the back of the chassis (1), the left beam (11), the right beam (12) and the front bottom plate (16) are connected by intermittent welding.

3. The chassis (1) according to claim 2, characterized in that, On one side of the front of the chassis (1), the left beam (11) is bent near the front bottom plate (16) to form a first vertical wall (111) and a left beam edge (113), and the front bottom plate (16) is bent near the left beam (11) to form a left vertical wall (161) and a left edge (162); the first vertical wall (111) and the left vertical wall (161) of the left beam cooperate, and the left edge (113) and the left edge (162) of the front bottom plate cooperate and are connected by riveting; On one side of the front of the chassis (1), the right beam (12) is bent near the front base plate (16) to form a right beam first vertical wall (121) and a right beam overlap (123), and the front base plate (16) is bent near the right beam (12) to form a front base plate right vertical wall (163) and a front base plate right overlap (164); the right beam first vertical wall (121) and the front base plate right vertical wall (163) are fitted together, and the right beam overlap (123) and the front base plate right overlap (164) are fitted together and connected by riveting.

4. The chassis (1) according to claim 3, characterized in that, The left vertical wall (161) of the front base plate has a left through-hole (165), and the right vertical wall (163) of the front base plate has a right through-hole (166); the left through-hole (165) and the right through-hole (166) are both used to fix the drain pipe (35), and the drain pipe (35) is used to discharge the condensate generated by the evaporator assembly (2) in the front base plate (16); The left vertical wall (161) of the front base plate is also provided with a left lifting lug hole (167), and the right vertical wall (163) of the front base plate is also provided with a right lifting lug hole (168); the left lifting lug hole (167) and the right lifting lug hole (168) are both used to lift the chassis (1).

5. The chassis (1) according to claim 1, characterized in that, The front sidewall of the front partition (13) is connected to the left beam (11), the right beam (12), and the front bottom plate (16) by intermittent welding, and the rear sidewall of the front partition (13) is connected to the left beam (11), the right beam (12), and the front bottom plate (16) by riveting. The front sidewall of the partition plate (14) is connected to the left beam (11), the right beam (12), and the front bottom plate (16) by intermittent welding, and the rear sidewall of the partition plate (14) is connected to the left beam (11), the right beam (12), and the rear bottom plate (17) by riveting. The front sidewall of the rear partition (15) is connected to the left beam (11), the right beam (12), and the rear bottom plate (17) by intermittent welding, and the rear sidewall of the front partition (13) is connected to the left beam (11) and the right beam (12) by riveting.

6. The chassis (1) according to claim 5, characterized in that, The left beam (11) has a second vertical wall (112) on the side away from the front bottom plate (16), and the right beam (12) has a second vertical wall (122) on the side away from the front bottom plate (16). The rear sidewall of the front partition (13) is bent to form a front partition edge (131). The left end of the front partition edge (131) is engaged with the second vertical wall (112) of the left beam and connected by riveting. The right end of the front partition edge (131) is engaged with the second vertical wall (122) of the right beam and connected by riveting. The middle part of the front partition edge (131) is engaged with the front end of the front bottom plate (16) and connected by riveting. The rear sidewall of the partition plate (14) is bent to form a partition plate overlap (141). The left end of the partition plate overlap (141) is engaged with the second vertical wall (112) of the left beam and connected by riveting. The right end of the partition plate overlap (141) is engaged with the second vertical wall (122) of the right beam and connected by riveting. The middle part of the partition plate overlap (141) is engaged with the front end of the rear bottom plate (17) and connected by riveting. The rear sidewall of the rear partition (15) is bent to form a rear partition edge (151). The left end of the rear partition edge (151) is engaged with the second vertical wall (112) of the left beam and connected by riveting. The right end of the rear partition edge (151) is engaged with the second vertical wall (122) of the right beam and connected by riveting.

7. The chassis (1) according to claim 4, characterized in that, The evaporator assembly (2) includes a left evaporator fan (21) and a right evaporator fan (22); the chassis (1) also includes a left bracket (191) and a right bracket (192), both of which are disposed within the front cavity (181); The left support (191) is mounted on the left beam (11) and is used to mount the left evaporator fan (21); the right support (192) is mounted on the right beam (12) and is used to mount the right evaporator fan (22).

8. The chassis (1) according to claim 1, characterized in that, The evaporator assembly (2) includes an evaporator, which includes a left evaporator (23) and a right evaporator (24); the front base plate (16) is arc-shaped and has a return air inlet (169); the left evaporator (23) is located to the left of the return air inlet (169), and the right evaporator (24) is located to the right of the return air inlet (169); The roof-mounted air conditioner also includes a fresh air device (33); the front partition (13) forms a fresh air inlet (132), which is used to house the fresh air device (33).

9. A roof-mounted air conditioner, characterized in that, The system includes an evaporator assembly (2), a compressor assembly (31), a condenser assembly (32), and a chassis (1) as described in any one of claims 1 to 8; the evaporator assembly (2) is disposed in the front cavity (181) and on the front base plate (16); the compressor assembly (31) is disposed in the middle cavity (182) and on the rear base plate (17); and the condenser assembly (32) is disposed in the rear cavity (183).

10. The roof-mounted air conditioner according to claim 9, characterized in that, The evaporator assembly (2) includes an evaporator on which a PTC heater (26) is provided; The evaporator includes a left evaporator (23) and a right evaporator (24); the left evaporator (23) and the right evaporator (24) are connected by a connecting bracket (25) and are arranged opposite each other; the left evaporator (23) is located on the left side of the return air inlet (169) of the front base plate (16), and the right evaporator (24) is located on the right side of the return air inlet (169) of the front base plate (16); The heat exchange surfaces of the left evaporator (23) and the right evaporator (24) are both inclined relative to the vertical plane, and the upper ends of the left evaporator (23) and the right evaporator (24) are close to each other, while the lower ends of the left evaporator (23) and the right evaporator (24) are far apart.

11. The roof-mounted air conditioner according to claim 10, characterized in that, The roof-mounted air conditioner also includes an electronic control component (34); an air duct (27) is formed between the left evaporator (23) and the right evaporator (24), and the air duct (27) is connected to the return air vent (169); the electronic control component (34) is disposed in the air duct (27).

12. The roof-mounted air conditioner according to claim 9, characterized in that, The front end and rear end of the left vertical wall (161) of the front base plate are both provided with left through-holes (165), and the front end and rear end of the right vertical wall (163) of the front base plate are both provided with right through-holes (166). The top-mounted air conditioner also includes a drain pipe (35), which includes two left drain pipes (351) and two right drain pipes (352). One end of the left drain pipe (351) is fixed in the left through hole (165), and the other end of the left drain pipe (351) is fixed on the left bracket (191). One end of the right drain pipe (352) is fixed in the right through hole (166), and the other end of the right drain pipe (352) is fixed on the right bracket (192).

13. The roof-mounted air conditioner according to claim 9, characterized in that, The roof-mounted air conditioner is for new energy buses.

Images