Cold air pipeline in new energy automobile
By setting up a tightening mechanism on the outer wall of the corrugated pipe in the air-conditioning pipeline in new energy vehicles, the corrugated pipe shrinks, solving the problems of excessive installation margin and increased vibration, reducing the occurrence of abnormal noise.
Patent Information
- Application Number
- CN202421317239.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-06-11
AI Technical Summary
During the long-term thermal expansion and contraction process of air-conditioning pipelines in new energy vehicles, the shrinking performance of the corrugated pipes is reduced, resulting in excessive installation margin and increased vibration, which may impact other parts and make abnormal noises.
A medium air conditioner pipe including corrugated pipe and connecting flange is designed. The outer wall of the corrugated pipe is equipped with a tightening mechanism, including connecting the clamp, adjusting clamp, positioning screw and synchronous nut. By rotating the worm, the synchronous nut can drive the clamp. The hoop is close to the connecting hoop, and squeeze the bellows to shrink it, shorten the effective length and reduce the installation allowance.
By shrinking the bellows, the installation margin is reduced, the vibration amplitude is reduced, and the corrugated pipe is prevented from hitting the parts next to it, reducing abnormal noise.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile accessories, in particular to a cooling air pipeline in a new energy automobile. Background Art
[0002] The air-conditioning duct in new energy vehicles is an important connecting pipe fitting in the automobile system. The air-conditioning duct is connected in the engine compartment. The air-conditioning duct is usually connected with a retractable bellows in the middle, and flanges are set at both ends for fixed connection with the engine. The bellows usually absorbs vibration and provides flexible connection. The structure in the engine compartment is compact and the installation space of the air-conditioning duct is small. In order to facilitate the connection of the air-conditioning duct, the bellows are usually provided with installation margin. The long-term thermal expansion and contraction in the engine compartment will cause the bellows to age and reduce the shrinkage performance of the bellows. The overall length of the bellows increases, resulting in excessive installation margin. When the engine vibrates, the vibration amplitude of the aged bellows increases. Excessive installation margin will cause the bellows to hit other components next to it in the engine compartment and cause abnormal noise. Utility Model Content
[0003] 1. Technical issues to be resolved
[0004] In view of the deficiencies in the prior art, the utility model provides a cooling air duct in a new energy vehicle, which solves the problems raised in the above-mentioned background technology.
[0005] (II) Technical solution
[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:
[0007] A cold air duct in a new energy vehicle comprises a bellows and connecting flanges arranged at both ends of the bellows, the bellows comprising an integrally formed connecting tube and a telescopic tube which are spaced apart, the telescopic tube being arranged as an arc-shaped tube protruding outward, a tightening mechanism being arranged on the outer wall of the bellows, the tightening mechanism comprising a connecting clamp, an adjusting clamp, a positioning screw and a synchronous nut, the connecting clamp and the adjusting clamp being both sleeved on the outer wall of the bellows, one end of the positioning screw being fixed on the connecting clamp, and the other end being slidably connected to the adjusting clamp, the synchronous nut being rotatably connected to the adjusting clamp, and the synchronous nut being threadably connected to the positioning screw.
[0008] Preferably, an adjusting worm wheel is integrally formed on the outer wall of the synchronous screw, an adjusting worm is rotatably connected to the adjusting hoop, and the adjusting worm wheel and the adjusting worm are meshed with each other.
[0009] Preferably, a limiting nut is provided at one end of the positioning screw passing through the adjusting hoop, and the limiting nut abuts against the outer wall of the adjusting hoop.
[0010] Preferably, the connecting hoop comprises symmetrically arranged connecting half hoops, a positioning bolt is connected between the two connecting half hoops, and the adjusting hoop comprises an adjusting seat and an adjusting half hoops, a positioning bolt is connected between the adjusting seat and the adjusting half hoops.
[0011] Preferably, a mounting groove is provided on the adjustment seat, the synchronous nut is rotatably connected in the mounting groove, and the adjusting worm is rotatably connected to the adjustment seat.
[0012] Preferably, a support spring is connected between the connecting hoop and the adjusting hoop, and the support spring is sleeved on the outside of the positioning screw.
[0013] Preferably, the connecting clamp and the adjusting clamp are both provided with a clamp groove, the inner wall of the clamp groove is provided with a plurality of locking grooves which match the outer wall of the corrugated pipe in a concave-convex manner, and the telescopic cylinder is clamped in the locking groove.
[0014] (III) Beneficial effects
[0015] The utility model provides a cooling air pipeline in a new energy vehicle, which has the following beneficial effects:
[0016] 1. In the utility model, the connecting hoop and the adjusting hoop can be locked on the outer wall of the bellows. Rotating the adjusting worm can rotate the adjusting worm wheel, so that the integrally formed synchronous nut rotates relative to the positioning screw, driving the adjusting hoop to approach the connecting hoop, so that the bellows shrinks, so as to shorten the effective length of the bellows, reduce the vibration amplitude caused by the installation margin, and avoid the bellows from hitting the adjacent parts. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the structure of a cooling air duct in a new energy vehicle of the utility model;
[0018] Figure 2 It is a structural schematic diagram of the tightening mechanism in the utility model;
[0019] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.
[0020] In the figure: 1. bellows; 2. connecting flange; 3. connecting tube; 4. telescopic tube; 5. connecting clamp; 6. adjusting clamp; 7. positioning screw; 8. synchronous nut; 9. positioning bolt; 10. mounting groove; 11. adjusting worm gear; 12. adjusting worm; 13. tightening groove; 14. supporting spring. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.
[0022] The utility model provides a new energy vehicle cooling air pipeline.
[0023] like Figure 1 As shown, it includes a bellows 1 and connecting flanges 2 arranged at both ends of the bellows 1, the bellows 1 includes an integrally formed connecting tube 3 and a telescopic tube 4 distributed at intervals, the telescopic tube 4 is configured as an outwardly convex arc tube, and a tightening mechanism is arranged on the outer wall of the bellows 1.
[0024] like Figure 2 As shown, the tightening mechanism includes a connecting hoop 5, an adjusting hoop 6, a positioning screw 7 and a synchronous nut 8. The connecting hoop 5 includes a symmetrically arranged connecting half hoop, and a positioning bolt 9 is connected between the two connecting half hoops. The adjusting hoop 6 includes an adjusting seat and an adjusting half hoop, and a positioning bolt 9 is connected between the adjusting seat and the adjusting half hoop. The split connecting hoop 5 and the adjusting hoop 6 can facilitate the tightening mechanism to be sleeved on the outer wall of the corrugated tube 1. Several positioning screws 7 are provided. A supporting spring 14 is connected between the connecting hoop and the adjusting hoop. The supporting spring 14 is sleeved on the outside of the positioning screw 7 for positioning the connecting hoop 5 and the adjusting hoop 6 to play a supporting and positioning role. The connecting hoop 5 and the adjusting hoop 6 are both sleeved on the outer wall of the corrugated tube 1. One end of the positioning screw 7 is fixed on the connecting hoop 5, and the other end is slidably connected to the adjusting hoop 6. Two synchronous nuts 8 are provided, and a mounting groove 10 is provided on the adjusting seat. The synchronous nut 8 is rotatably connected to the mounting groove 1 0, the thickness of the synchronous nut 8 is equal to the width of the mounting groove 10, the adjusting worm 12 is rotatably connected to the adjusting seat, and is rotatably connected to the adjusting hoop 6 respectively, the two synchronous nuts 8 are threadedly connected to the two positioning screws 7, the outer wall of the synchronous screw is integrally formed with an adjusting worm wheel 11, the adjusting hoop 6 is rotatably connected with the adjusting worm 12, the two adjusting worm wheels 11 are meshed with the adjusting worm 12, rotating the adjusting worm 12 can make the two adjusting worm wheels 11 keep rotating synchronously, the two synchronous nuts 8 rotate at the same time, and the adjusting hoop 6 keeps the force balance during the contraction process, the positioning screw 7 passes through one end of the adjusting hoop 6 and is provided with a limiting nut, the limiting nut abuts against the outer wall of the adjusting hoop 6, the initial spacing between the connecting hoop 5 and the adjusting hoop 6 can be adjusted by rotating the limiting nut, so as to adjust the number of telescopic cylinders 4 used for contraction, that is, adjust the contraction distance, maintain the tightness of the bellows 1, and reduce the overall amplitude of the bellows 1 while reducing vibration of the bellows 1.
[0025] like Figure 3As shown, the connecting clamp 5 and the adjusting clamp 6 are both provided with clamp grooves, and the inner wall of the clamp groove is provided with a plurality of locking grooves which match the outer wall of the bellows 1 concavely and convexly. The telescopic tube 4 is clamped in the locking groove, and the tightening groove 13 can lock the tightening mechanism in the axial direction of the bellows 1. When tightening the bellows 1, the connecting clamp 5 and the adjusting clamp 6 are prevented from slipping on the outer wall of the bellows 1.
[0026] Working principle:
[0027] In the utility model, the connecting hoop 5 and the adjusting hoop 6 are fixed on the outer wall of the bellows 1 at intervals by the positioning bolts 9. By rotating the adjusting worm 12, the two adjusting worm wheels 11 can rotate synchronously. Through the threaded matching relationship between the synchronous nut 8 and the positioning screw 7, the synchronous nut 8 will drive the adjusting hoop 6 to move toward the connecting hoop 5 under the action of the positioning screw 7. During the movement, the bellows 1 is squeezed to shrink the part of the bellows 1 between the connecting hoop 5 and the adjusting hoop 6, so as to adjust the overall length of the bellows 1, balance the installation margin, reduce the vibration amplitude of the bellows 1, and avoid the bellows 1 vibrating and hitting the adjacent parts to make abnormal noises.
[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A cooling air pipe in a new energy vehicle, comprising a bellows and connecting flanges arranged at both ends of the bellows, characterized in that: The bellows includes an integrally formed connecting tube and a telescopic tube that are spaced apart. The telescopic tube is configured as an outwardly protruding arc-shaped tube. A tightening mechanism is provided on the outer wall of the bellows. The tightening mechanism includes a connecting hoop, an adjusting hoop, a positioning screw and a synchronous nut. The connecting hoop and the adjusting hoop are both sleeved on the outer wall of the bellows. One end of the positioning screw is fixed to the connecting hoop, and the other end is slidably connected to the adjusting hoop. The synchronous nut is rotatably connected to the adjusting hoop, and the synchronous nut is threadedly connected to the positioning screw.
2. The air conditioning pipe in a new energy vehicle according to claim 1, characterized in that: An adjusting worm wheel is integrally formed on the outer wall of the synchronous nut, an adjusting worm is rotatably connected to the adjusting hoop, and the adjusting worm wheel and the adjusting worm are meshed with each other.
3. The air conditioning pipe in a new energy vehicle according to claim 2, characterized in that: A limiting nut is arranged at one end of the positioning screw that passes through the adjusting hoop, and the limiting nut abuts against the outer wall of the adjusting hoop.
4. The air conditioning pipe in a new energy vehicle according to claim 3, characterized in that: The connecting hoop comprises connecting half hoops which are symmetrically arranged, and a positioning bolt is connected between the two connecting half hoops. The adjusting hoop comprises an adjusting seat and an adjusting half hoops, and a positioning bolt is connected between the adjusting seat and the adjusting half hoops.
5. The air conditioning pipe in a new energy vehicle according to claim 4, characterized in that: The adjusting seat is provided with a mounting groove, the synchronous nut is rotatably connected in the mounting groove, and the adjusting worm is rotatably connected to the adjusting seat.
6. The air conditioning pipe in a new energy vehicle according to claim 5, characterized in that: A support spring is connected between the connecting hoop and the adjusting hoop, and the support spring is sleeved on the outer side of the positioning screw.
7. The air conditioning pipe in a new energy vehicle according to claim 6, characterized in that: The connecting clamp and the adjusting clamp are both provided with a clamp groove, the inner wall of the clamp groove is provided with a plurality of locking grooves which are concave-convexly matched with the outer wall of the corrugated pipe, and the telescopic cylinder is clamped in the locking groove.