Rear-mounted vehicle air conditioner

Abstract

The utility model discloses a back type vehicle air conditioner, including the cab body, the backboard outside of cab body is equipped with air conditioning assembly, and the evaporative box on air conditioning assembly is connected with the wind box for realizing back air and three side air outlet, and the wind box is arranged in the cab, back air structure on the wind box is connected with the back air chamber formed between air conditioning assembly shell and evaporative box, and back air chamber is also connected with the fan chamber in evaporative box, in use, air conditioning assembly is installed on the backboard of cab body, will not increase the height of vehicle, has guaranteed the passability, the fan in evaporative box will directly blow cool wind or hot air into the wind box, and through three directions to enter the cab, has improved the distribution uniformity and use comfort, and the space occupancy of wind box is small, through the communication of wind box and evaporative box, back air structure and back air chamber on the wind box, back air chamber and fan chamber, has realized the circulating flow of the wind in the cab, need not to set up the pipeline, has guaranteed the normal continuous use of the back type vehicle air conditioner.

Description

Technical Field

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

[0002] Currently, to ensure the comfort of driving construction machinery, refrigeration and heating equipment is often installed on these machines (including forklifts and excavators). The most common equipment is a household air conditioner, with the outdoor unit mounted on the roof and the indoor unit installed in the cab. Pipes connect the outdoor and indoor units. This method has the following drawbacks:

[0003] 1. The outdoor unit is installed on the roof, which increases the overall height of the vehicle and affects its passability;

[0004] 2. The indoor unit is large in size and occupies a lot of space in the driver's cab;

[0005] 3. The working environment of construction machinery is harsh, and there is a risk that the pipeline between the outdoor and indoor units may be damaged, affecting its use. Utility Model Content

[0006] This utility model provides a rear-mounted vehicle air conditioner that reduces the space occupancy rate inside the driver's cabin while ensuring normal use and maneuverability.

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is: a rear-mounted vehicle air conditioner, including a cab body, an air conditioning assembly is installed on the outer side of the back panel of the cab body, the evaporator on the air conditioning assembly is connected to a wind box for realizing return air and three-sided air outlet, and the wind box is arranged in the cab.

[0008] The return air structure on the air box is connected to the return air chamber formed between the air conditioning assembly housing and the evaporator, and the return air chamber is also connected to the fan chamber inside the evaporator.

[0009] As an improvement, the air box includes an air box body installed inside the back panel of the cab body. The air box body has an air outlet chamber that communicates with the evaporator. Both sides of the air outlet chamber have return air chambers that communicate with the return air chamber. The return air chambers and the air outlet chambers are independent of each other.

[0010] An air outlet is provided on the air box body at the position corresponding to the air outlet cavity, and an air outlet pipe is provided on the air box body located on both sides of the air outlet cavity. The air outlet pipe communicates with the air outlet cavity and passes through the return air cavity; a return air hole is provided on the air box body at the position corresponding to the return air cavity.

[0011] As a further improvement, a shroud covering the air box body is installed inside the cab.

[0012] As a further improvement, the hood includes a panel, which is provided with a hole to accommodate the air box body, corresponding to the air outlet; and the panel is provided with a plurality of strip-shaped air outlets at the position corresponding to the air outlet end of the air outlet pipe.

[0013] It also includes a base plate assembled with the panel, the base plate having a partition located below the air box body, the base plate, the partition, the air box body and the cab body back panel forming a sealed chamber, the sealed chamber communicating with the return air hole, and the base plate corresponding to the sealed chamber also having multiple through holes.

[0014] As an improvement, the evaporator includes a fan chamber and an installation chamber that are independent of each other, and both ends of the fan chamber are provided with communication holes that communicate with the return air chamber;

[0015] Positioning guide frames are installed in the evaporators at both ends of the installation chamber, and each positioning guide frame is provided with a guide support groove for installing the evaporator.

[0016] The bottom of the evaporator is equipped with an integrated baffle and drainage sealing plate.

[0017] As a further improvement, the integrated baffle and drainage sealing plate includes an inclined drainage section, the lower side of which is close to the fan room and connected to a drain pipe, and both sides of the drainage section are bent into baffle sections.

[0018] As a further improvement, both of the water-blocking parts are inclined, with the water-blocking part on the side away from the drain pipe being higher than the bottom of the positioning guide frame, and the other water-blocking part being lower than the bottom of the positioning guide frame;

[0019] A support plate is provided between the integrated baffle and drainage sealing plate and the positioning guide frame at the position corresponding to the drainage pipe.

[0020] As a further improvement, mounting brackets are installed on both sides of the outer wall of the air conditioning assembly housing. The mounting brackets are also installed on the back panel of the cab body, and the mounting brackets are provided with multiple mounting adjustment holes.

[0021] After adopting the above technical solution, the effect of this utility model is:

[0022] Because this rear-mounted vehicle air conditioner includes the driver's cab body, with the air conditioning assembly installed on the outer side of the back panel of the driver's cab body, and the evaporator on the air conditioning assembly connected to a fan box for realizing return air and three-way air outlet, the fan box is located in the driver's cab; the return air structure on the fan box is connected to the return air chamber formed between the air conditioning assembly shell and the evaporator, and the return air chamber is also connected to the fan chamber inside the evaporator. Based on the above structure, when using this rear-mounted vehicle air conditioner, the air conditioning assembly is installed on the back panel of the driver's cab body without increasing the overall height of the vehicle, ensuring passability; at the same time, the fan in the evaporator directly blows cool or hot air into the fan box, and then enters the driver's cab through three directions, improving the uniformity of distribution and user comfort, and the fan box occupies little space in the driver's cab; moreover, through the connection between the fan box and the evaporator, the connection between the return air structure on the fan box and the return air chamber, and the connection between the return air chamber and the fan chamber inside the evaporator, the air circulation in the driver's cab is realized. Compared with the traditional method, there is no need to set up duct connections, ensuring the normal and continuous use of this rear-mounted vehicle air conditioner.

[0023] Because the air box includes an air box body installed inside the back panel of the cab, the air box body has an air outlet chamber that communicates with the evaporator, and return air chambers that communicate with the return air chamber on both sides of the air outlet chamber. The return air chamber and the air outlet chamber are independent of each other. The air box body has an air outlet at the position corresponding to the air outlet chamber, and an air outlet pipe is provided on the air box body located on both sides of the air outlet chamber. The air outlet pipe communicates with the air outlet chamber and passes through the return air chamber. The air box body has a return air hole at the position corresponding to the return air chamber. Thus, through the air box with the above structure, not only is the air circulation in the cab realized, but the air intake and return air do not affect each other. Moreover, the air is discharged from three sides, which facilitates the rapid and uniform distribution of air in the cab. At the same time, the structure is compact, which lays the foundation for a small occupancy rate in the cab.

[0024] Because the cab body is equipped with a shroud that covers the air box, the airflow is not affected, and the aesthetics of the cab are improved.

[0025] The wind hood includes a panel with holes for accommodating the air box body located on the panel corresponding to the air outlet; multiple strip-shaped air outlet holes on the panel corresponding to the air outlet end of the air duct; and a base plate assembled with the panel. The base plate has a partition located below the air box body. A sealed chamber is formed between the base plate, the partition, the air box body, and the back panel of the cab body. The sealed chamber is connected to the return air hole. Multiple through holes are also provided on the base plate corresponding to the sealed chamber. Thus, through the wind hood with the above structure, the air intake and return air on the wind hood are connected to the air intake and return air structures on the air box respectively, and they do not affect each other. The wind hood is composed of a plate structure, which is simple in structure and does not occupy too much additional indoor space.

[0026] Because the evaporator includes an independent fan chamber and an installation chamber, both ends of the fan chamber have connecting holes that communicate with the return air chamber; positioning guide frames are installed inside the evaporator at both ends of the installation chamber, and the positioning guide frames have guide support grooves for installing the evaporator; the bottom of the evaporator is equipped with an integrated baffle and drainage sealing plate. Thus, through this structure of the evaporator, the fan blows into the installation chamber, where the evaporator or PTC electric heater generates cool or hot air, which is then blown into the air box. The return air enters the fan chamber through the return air chamber and the connecting holes, forming a circulation; the positioning guide frame and the guide support groove work together to quickly install the evaporator in a plug-in manner; the integrated baffle and drainage sealing plate blocks and diverts the condensate produced by the evaporator, and this integrated baffle and drainage sealing plate is seamless and leak-proof.

[0027] Because the integrated baffle and drainage sealing plate includes an inclined drainage section with its lower side close to the fan chamber and connected to a drain pipe, and both sides of the drainage section are bent into water-blocking sections, when the fan blows towards the evaporator (so that cool air is blown into the air box), the condensate will be blown down. The water-blocking section prevents the condensate from being blown to other areas. At the same time, the condensate can be collected through the drainage section and discharged through the drain pipe. The structure is simple and highly practical.

[0028] Because both water-blocking sections are inclined, the water-blocking section on the side away from the drain pipe is higher than the bottom of the positioning guide frame, while the other water-blocking section is lower than the bottom of the positioning guide frame. A support plate is provided between the integrated water-blocking and draining sealing plate corresponding to the drain pipe and the positioning guide frame. Thus, the inclined arrangement of the two water-blocking sections increases the coverage area of ​​the water-blocking sections, which is beneficial for blocking the condensate blown down by the fan. At the same time, the support plate enhances the support strength of the positioning guide frame for the evaporator.

[0029] Because mounting brackets are installed on both sides of the outer wall of the air conditioning assembly housing, and the mounting brackets are also installed on the back panel of the cab body, the mounting brackets are provided with multiple mounting adjustment elongated holes, so that the installation position of the air conditioning assembly can be adjusted by adjusting the elongated holes, effectively ensuring the reliability and smoothness of the cooperation between the air conditioning assembly and the cab body. Attached Figure Description

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0031] Figure 1 This is a schematic diagram of the structure of this utility model;

[0032] Figure 2 yes Figure 1 A schematic diagram of the internal structure of the central air conditioning assembly;

[0033] Figure 3 yes Figure 1 A structural diagram from another angle;

[0034] Figure 4 yes Figure 1 A structural diagram showing the location of the air conditioning assembly installed in the middle cab.

[0035] Figure 5 yes Figure 1 Schematic diagram of the central air conditioning assembly;

[0036] Figure 6 yes Figure 5 A sectional view;

[0037] The components are as follows: 1-Cab body; 101-Avoidance hole; 102-Panel; 103-Hole; 104-Strip air outlet; 105-Bottom plate; 106-Partition plate; 107-Sealed chamber; 108-Through hole; 2-Air conditioning assembly; 201-Return air chamber; 3-Evaporator box; 301-Fan room; 302-Installation chamber; 303-Fan; 304-Connecting hole; 305-Positioning guide frame; 306-Evaporator; 4-Air box; 401-Air box body; 402-Air outlet cavity; 403-Return air cavity; 404-Air outlet flap; 405-Air outlet pipe; 406-Return air hole; 5-PTC electric heater; 6-Integrated baffle and drainage sealing plate; 601-Drainage section; 602-Drain pipe; 603-Water baffle; 604-Support plate; 7-Mounting bracket; 701-Installation adjustment elongated hole. Detailed Implementation

[0038] The present invention will be further described in detail below through specific embodiments.

[0039] like Figures 1 to 3 ,as well as Figure 5 and Figure 6 As shown in the figure, a rear-mounted vehicle air conditioner includes a driver's cab body 1. An air conditioning assembly 2 is installed on the outer side of the back panel of the driver's cab body 1 (the structure and working principle of the air conditioning assembly 2 can be found in the invention patent application with application number: 202311643435.3, publication number CN 117445622 A, and invention title: An air conditioning host for a new energy vehicle, so it will not be described in detail here). The evaporator box 3 on the air conditioning assembly 2 is connected to a fan box 4 for realizing return air and three-sided air outlet. The fan box 4 is arranged in the driver's cab. The return air structure on the fan box 4 is connected to the return air chamber 201 formed between the outer shell of the air conditioning assembly 2 and the evaporator box 3. The return air chamber 201 is also connected to the fan chamber 301 inside the evaporator box 3.

[0040] The air box 4 includes an air box body 401 installed inside the back panel of the cab body 1. Correspondingly, the back panel of the cab body 1 is provided with a clearance hole 101 for accommodating the air box 4 (see [reference]). Figure 4The bellows body 401 has an air outlet 402 that communicates with the evaporator 3. Both sides of the air outlet 402 have return air chambers 403 that communicate with the return air chamber 201. The return air chambers 403 are independent of the air outlet 402. The bellows body 401 at the position corresponding to the air outlet 402 has an air outlet with an air outlet flap 404 installed on it. The bellows body 1 at the two sides of the air outlet 402 has an air outlet pipe 405 that communicates with the air outlet 402 and passes through the return air chamber 403. The bellows body 401 at the position corresponding to the return air chamber 403 has a return air hole 406.

[0041] The cab body 1 is equipped with a hood that covers the air box body 401. The hood includes a panel 102, and the panel 102, which is arranged corresponding to the air outlet, is provided with a hole 103 for accommodating the air box body 401 (see...). Figure 4 The panel 102, corresponding to the air outlet end of the air outlet duct 405, is provided with a plurality of strip-shaped air outlet holes 104; it also includes a base plate 105 assembled with the panel 402, on which a partition 106 is provided located below the air box body 401, and a sealed chamber 107 is formed between the base plate 105, the partition 106, the air box body 401 and the back panel of the cab body 1, the sealed chamber 107 is connected to the return air hole 406, and a plurality of through holes 108 are also provided on the base plate 105 corresponding to the sealed chamber 107.

[0042] The evaporator 3 includes an independent fan chamber 301 and an installation chamber 302. A fan 303 is installed in the fan chamber 301, and both ends of the fan chamber 301 are provided with connecting holes 304 that communicate with the return air chamber 201. Positioning guide frames 305 are installed in the evaporator 3 at both ends of the installation chamber 302. Each positioning guide frame 305 is provided with a guide support groove (not shown in the figure) for installing the evaporator 306. The guide support groove is U-shaped. A PTC electric heater 5 is also installed in the installation chamber 302. The installation chamber 302 on the side with the PTC electric heater 5 communicates with the air box 4 (specifically the air outlet chamber 402). The bottom of the evaporator 3 is provided with an integrated baffle and drainage sealing plate 6.

[0043] like Figure 6 As shown, the integrated baffle and drainage sealing plate 6 includes an inclined drainage section 601. The lower side of the drainage section 601 is close to the fan room 301 and is connected to the drain pipe 602. Both sides of the drainage section 601 are bent into water-blocking sections 603. The two water-blocking sections 603 are inclined and their inclination directions are far apart from each other. The water-blocking section 603 on the side away from the drain pipe 602 is higher than the bottom of the positioning guide frame 305, and the other water-blocking section 603 is lower than the bottom of the positioning guide frame 305. A support plate 604 is provided between the integrated baffle and drainage sealing plate 6 and the positioning guide frame 305 at the position corresponding to the drain pipe 602.

[0044] In this design, T-shaped mounting brackets 7 are installed on both sides of the outer wall of the air conditioning assembly 2. These mounting brackets 7 are also installed together with the back panel of the cab body 1. The mounting brackets 7 are provided with multiple mounting and adjustment elongated holes 701 (see...). Figure 4 ).

[0045] The above-described embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Any modifications and alterations to the technical solution of the present utility model without departing from its design spirit shall fall within the protection scope defined by the claims of the present utility model.

Claims

1. A rear-mounted vehicle air conditioner, comprising a driver's cab body, characterized in that; An air conditioning assembly is installed on the outer side of the back panel of the cab body. The evaporator on the air conditioning assembly is connected to a wind box for realizing return air and three-sided air outlet. The wind box is arranged in the cab. The return air structure on the air box is connected to the return air chamber formed between the air conditioning assembly housing and the evaporator, and the return air chamber is also connected to the fan chamber inside the evaporator.

2. A rear-mounted vehicle air conditioner as described in claim 1, characterized in that: The air box includes an air box body installed inside the back panel of the cab body. The air box body has an air outlet chamber that communicates with the evaporator. Both sides of the air outlet chamber have return air chambers that communicate with the return air chamber. The return air chambers are independent of the air outlet chambers. An air outlet is provided on the air box body at the position corresponding to the air outlet cavity, and an air outlet pipe is provided on the air box body located on both sides of the air outlet cavity. The air outlet pipe communicates with the air outlet cavity and passes through the return air cavity; a return air hole is provided on the air box body at the position corresponding to the return air cavity.

3. A rear-mounted vehicle air conditioner as described in claim 2, characterized in that: The cab body is equipped with a hood that covers the air box body.

4. A rear-mounted vehicle air conditioner as described in claim 3, characterized in that: The wind hood includes a panel, and the panel is provided with a hole to accommodate the wind box body, which is provided on the panel corresponding to the air outlet; the panel is provided with a plurality of strip-shaped air outlet holes at the position corresponding to the air outlet end of the air outlet pipe; It also includes a base plate assembled with the panel, the base plate having a partition located below the air box body, the base plate, the partition, the air box body and the cab body back panel forming a sealed chamber, the sealed chamber communicating with the return air hole, and the base plate corresponding to the sealed chamber also having multiple through holes.

5. A rear-mounted vehicle air conditioner as described in claim 1, characterized in that: The evaporator includes a fan chamber and an installation chamber that are independent of each other. Both ends of the fan chamber are provided with communication holes that communicate with the return air chamber. Positioning guide frames are installed in the evaporators at both ends of the installation chamber, and each positioning guide frame is provided with a guide support groove for installing the evaporator. The bottom of the evaporator is equipped with an integrated baffle and drainage sealing plate.

6. A rear-mounted vehicle air conditioner as described in claim 5, characterized in that: The integrated baffle and drainage sealing plate includes an inclined drainage section. The lower side of the drainage section is close to the fan room and connected to a drain pipe. Both sides of the drainage section are bent into water-blocking sections.

7. A rear-mounted vehicle air conditioner as described in claim 6, characterized in that: Both of the water-blocking parts are inclined, with the water-blocking part on the side away from the drain pipe being higher than the bottom of the positioning guide frame, and the other water-blocking part being lower than the bottom of the positioning guide frame; A support plate is provided between the integrated baffle and drainage sealing plate and the positioning guide frame at the position corresponding to the drainage pipe.

8. A rear-mounted vehicle air conditioner as described in any one of claims 1 to 7, characterized in that: Mounting brackets are installed on both sides of the outer wall of the air conditioning assembly housing. The mounting brackets are also installed on the back panel of the cab body. The mounting brackets are provided with multiple mounting and adjustment elongated holes.

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