An easy-to-install RV air handling unit

By using an embedded installation with a spring-buffered structure in the RV air handling unit, the safety hazards and equipment damage caused by loose bolts and high-frequency vibrations are solved, achieving stable installation and extended lifespan of the device.

CN224276778UActive Publication Date: 2026-05-26FOSHAN SANSHUI COLKU ELECTRICAL APPLIANCE

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHAN SANSHUI COLKU ELECTRICAL APPLIANCE
Filing Date
2025-07-02
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Traditional RV air handling units suffer from safety hazards, equipment damage, and high maintenance costs due to loose bolts and high-frequency vibrations.

Method used

The embedded installation method adopts a spring buffer structure, which is connected by a fixing plate and a bushing. The springs buffer the vibration of the RV while it is moving, and the spring force can be adjusted to adapt to different vibration intensities and equipment weights.

Benefits of technology

It effectively reduces vibration and impact, extends the service life of air handling units, and reduces safety hazards and maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model provides an easily embeddable air handling unit for RVs, comprising: an air handling unit fixing part, the air handling unit fixing part including a first fixing plate for connecting to an indoor unit and / or an outdoor unit, the first fixing plate having a fixing shaft on one side; and an RV fixing part: the RV fixing part including a second fixing plate for fixing to the vehicle body, the second fixing plate having a bushing on one side; a spring disposed within the bushing, the fixing shaft passing through the spring and inserted into the bushing, the upper and lower parts of the spring respectively abutting against the fixing shaft and the bottom of the bushing. This technical solution achieves convenient installation of the air handling unit and effectively reduces the vibration impact of RV driving on the air handling unit, extending the service life of the air handling unit.
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Description

Technical Field

[0001] This utility model relates to an air handling device, and more particularly to an air handling device based on a motorhome. Background Technology

[0002] Traditional RV air handling units (such as air conditioners) are often rigidly fixed to the roof or side wall with bolts, which can easily lead to continuous vibrations during driving.

[0003] 1. Loose Bolts and Safety Hazards: Continuous vibrations during vehicle operation, especially the superposition of low-frequency large amplitude and high-frequency small amplitude vibrations, act like an invisible "disassembly wrench," constantly acting on the fixing bolts. This causes the bolt preload to gradually decrease, eventually leading to loosening. More seriously, continuous vibration loads can cause bolt material fatigue, and in extreme cases, even breakage. Once the air conditioning unit or key bracket fails to be fixed, the air conditioning equipment, weighing several kilograms or even tens of kilograms, could become a "falling object" at high speeds or on bumpy roads, causing catastrophic consequences for the vehicle itself and traffic behind.

[0004] 2. The compressor, filled with precision moving parts (pistons, crankshaft, valves, bearings), is rigidly mounted, directly transmitting high-frequency vibrations from the chassis (especially engine vibrations and minor road bumps) to the compressor without any buffering. This high-frequency "hard impact" accelerates bearing wear, causes valve fatigue deformation or breakage, and leads to cracks in refrigerant pipe welds or leaks at connection points. The end result is a sharp drop in compressor efficiency, increased abnormal noise, and even complete failure resembling "cardiac arrest," resulting in high repair and replacement costs.

[0005] 3. Cracks at the mounting interface: The rigid connection points between the air conditioner housing (usually engineering plastic or thin metal) and the vehicle's steel frame are the areas of highest stress concentration. Continuous, especially torsional, vibration loads repeatedly apply alternating stress to these connection points. Under countless stress cycles, the material's microstructure gradually suffers fatigue damage, eventually leading to visible cracks at the interface edges and around bolt holes. These cracks not only compromise the equipment's sealing (leading to water and dust leaks) and weaken structural strength, but also further amplify vibrations, creating a vicious cycle that may ultimately cause partial or complete tearing failure of the mounting base or air conditioner housing. Therefore, there is an urgent need for a vehicle air handling unit that can alleviate the above-mentioned technical problems. Utility Model Content

[0006] This invention provides an air handling unit for RVs that is easy to embed and install. It is convenient to install and can effectively reduce the vibration impact of RV driving vibration on the air handling unit (such as an air conditioner), thereby extending the service life of the air handling unit.

[0007] This technical solution specifically refers to: an air handling unit for RVs that is easy to embed and install, comprising: an air conditioner fixing part, the air handling unit fixing part including a first fixing plate for connecting to an indoor unit and / or an outdoor unit, the first fixing plate having a fixing shaft on one side; and an RV fixing part: the RV fixing part including a second fixing plate for fixing to the vehicle body, the second fixing plate having a bushing on one side; a spring is provided inside the bushing, the fixing shaft passes through the spring and is inserted into the bushing, the upper and lower parts of the spring respectively abutting against the fixing shaft and the bottom of the bushing. The first fixing plate and the second fixing plate can be fixed by drilling holes and bolting according to the structure of the air conditioner indoor / outdoor unit / RV, or by other methods such as welding.

[0008] Preferably, in the RV air treatment device that is easy to embed and install, a limit protrusion is provided on the upper part of the fixed shaft to limit the position of the upper part of the spring.

[0009] Preferably, in the RV air treatment device that is easy to embed and install, the bottom of the bushing is provided with an inwardly extending inner edge to limit the lower position of the spring.

[0010] Preferably, the lower part of the fixed shaft is provided with a limiting hole and a shaft pin, and the bottom of the fixed shaft passes through the inner edge of the bushing and is limited by the shaft pin. Multiple limiting holes with different spacing can be provided at the bottom of the fixed shaft. This design allows for adjustment of the spring buffer force to cope with vibrations of different intensities and the weight of different air handling devices, achieving optimal buffering effect.

[0011] Preferably, there are at least two sets of the fixed shaft and the corresponding bushing. This makes the air treatment device more secure and requires less material.

[0012] Preferably, the first fixing plate and the second fixing plate are welded and fixed to the fixing shaft and the bushing, respectively.

[0013] Preferably, the air handling device is an air conditioner.

[0014] The technical solution of this utility model enables the embedded installation of the air handling unit, and the springs buffer the vibrations during the RV's operation, thus extending the service life of the air handling unit. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the fixing part of the air handling device of this utility model.

[0016] Figure 2 This utility model provides a structural schematic diagram of the RV fixing part.

[0017] Figure 3Top view of the bushing of this utility model.

[0018] Figure 4 This utility model presents a structural diagram illustrating the installation and assembly of the fixed shaft and bushing.

[0019] Legend: Air handling unit fixing part 100, first fixing part 101, fixing shaft 102, RV fixing part 200, bushing 202, spring 203, limiting protrusion 103, limiting hole 104, shaft pin 105. Detailed Implementation

[0020] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0021] like Figure 1 , Figure 2 As shown, a motorhome air handling unit that is easy to embed and install includes: an air handling unit fixing part 100, the air handling unit fixing part 100 including a first fixing plate 101 for connecting to an indoor unit and / or an outdoor unit, and a fixing shaft 102 provided on one side of the first fixing plate 101; and a motorhome fixing part 200: the motorhome fixing part 200 includes a second fixing plate 201 for fixing to the vehicle body, and a bushing 202 provided on one side of the second fixing plate 201; a spring 203 is provided inside the bushing 202, the fixing shaft 102 passes through the spring 203 and is inserted into the bushing 202, and the upper and lower parts of the spring 203 abut against the fixing shaft 102 and the bottom of the bushing 202, respectively. The first fixing plate 101 and the second fixing plate 201 can be fixed by drilling holes and bolts according to the structure of the air conditioner indoor / outdoor unit / motorhome, or they can be fixed by other methods such as welding. A limit protrusion 103 is provided on the upper part of the fixing shaft 102 to limit the upper position of the spring 203.

[0022] like Figure 3 As shown, the bushing 202 has an inwardly extending inner edge at its bottom to limit the lower position of the spring 203. The fixed shaft 102 has a limiting hole 104 and a pin 105 at its lower part. The bottom of the fixed shaft 102 passes through the inner edge of the bushing 202 and is limited by the pin 105. Multiple limiting holes 104 with different spacing can be provided at the bottom of the fixed shaft 102. The higher the pin 105 is, the more compressed the spring 203 is, resulting in a stronger elastic force, stronger vibration cancellation, and smaller vibration displacement of the air handling unit. This design allows for adjustment of the spring buffering force to cope with vibrations of different intensities and the weight of different air handling units, achieving optimal buffering effect.

[0023] It should be noted that the upper part of the fixed shaft 102 and the upper part of the bushing 202 should maintain a suitable distance to achieve gradient adjustment of the pin 105 in the multiple limiting holes 104. The pin 105 not only adjusts the spring force but also ensures that the fixed shaft 102 is always embedded in the bushing 202.

[0024] There are at least two sets of the fixed shaft 102 and the corresponding bushing 202. This makes the air treatment device more secure and requires less material. The first fixing plate 101 and the second fixing plate 201 are welded and fixed to the fixed shaft 102 and the bushing 202, respectively.

[0025] The air handling unit can be an air conditioner, air purifier, or other electrical equipment that needs to be fixed on the RV.

[0026] The preferred embodiments of this utility model have been described in detail above with reference to the accompanying drawings. However, this utility model is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this utility model, various simple modifications can be made to the technical solution of this utility model, and these simple modifications all fall within the protection scope of this utility model. It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0027] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. An air handling unit for RVs that is easy to embed and install, characterized in that... include: An air handling unit mounting part, the air handling unit mounting part including a first mounting plate for connecting with an indoor unit and / or an outdoor unit, and a mounting shaft is provided on one side of the first mounting plate; The RV fixing part includes a second fixing plate for fixing to the vehicle body, and a bushing is provided on one side of the second fixing plate; A spring is provided inside the bushing, and the fixed shaft passes through the spring and is inserted into the bushing. The upper and lower parts of the spring abut against the fixed shaft and the bottom of the bushing, respectively.

2. The RV air treatment device as described in claim 1, characterized in that, The upper part of the fixed shaft is provided with a limit protrusion.

3. The RV air treatment device as described in claim 1, characterized in that, The bottom of the bushing has an inwardly extending inner edge.

4. The RV air treatment device as described in claim 1, characterized in that, The lower part of the fixed shaft is provided with a limiting hole and a shaft pin.

5. The RV air treatment device as described in claim 4, characterized in that, The bottom of the fixed shaft passes through the inner edge of the bushing and is limited by the shaft pin.

6. The RV air treatment device as described in claim 5, characterized in that, The bottom of the fixed shaft can be provided with multiple limiting holes with different spacing.

7. The RV air treatment device as described in claim 1, characterized in that, There are at least two sets of the fixed shaft and the corresponding bushing.

8. The RV air treatment device as described in claim 1, characterized in that, The first fixing plate and the second fixing plate are respectively welded and fixed to the fixing shaft and the bushing.

9. A mobile home air treatment device for easy embedding installation as described in claim 1, characterized in that, The air handling unit is an air conditioner.