New energy automobile exhaust pipe assembly

Abstract

The utility model discloses an exhaust pipe assembly of a new energy automobile, which belongs to the technical field of exhaust pipes of new energy automobiles and comprises a first connecting pipe, an exhaust corrugated pipe and a second connecting pipe which are connected in sequence, a heat shield is sleeved outside the exhaust corrugated pipe, hoops are mounted on two sides of the outside of the heat shield, and the first connecting pipe is connected with the second connecting pipe. A limiting assembly is installed on the inner side of the heat insulation cover and comprises a spring and an arc-shaped plate connected to the end of the spring. The heat insulation cover is arranged, the heat insulation cover is arranged on the outer side of the exhaust corrugated pipe in a sleeved mode, and the heat insulation cover is fixed through the hoop, so that the exhaust corrugated pipe is isolated from the outside, the aging speed of the exhaust corrugated pipe is reduced, in addition, the spring and the arc-shaped plate are arranged in the heat insulation cover, and the arc-shaped plate is attached to the exhaust corrugated pipe. On one hand, the exhaust corrugated pipe is fixed, on the other hand, the exhaust corrugated pipe moves within a certain range when bent, and the installation stability of the exhaust corrugated pipe is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of exhaust pipes for new energy vehicles, and in particular relates to an exhaust pipe assembly for a new energy vehicle. Background Art

[0002] New energy vehicles refer to vehicles that use unconventional automotive fuels as their power source or use conventional automotive fuels and adopt new on-board power devices. New energy vehicles include pure electric vehicles, extended-range electric vehicles, hybrid vehicles, fuel cell electric vehicles, hydrogen engine vehicles, etc. Hybrid vehicles and fuel cell electric vehicles are usually equipped with exhaust pipes. The automobile exhaust bellows is also called the automobile exhaust pipe hose. It is installed in the exhaust pipe between the engine exhaust branch pipe and the muffler, making the entire exhaust system flexibly connected, thereby reducing vibration and noise, facilitating installation and extending the life of the exhaust muffler system.

[0003] The existing exhaust bellows of new energy vehicles are exposed to the outside and cannot play a role in fire prevention and heat insulation. When the engine equipment inside the car is working, the heat inside the car is very high. Under long-term high temperature conditions, the bellows are prone to aging, affecting the normal exhaust of the car. In addition, the mounting bracket of the existing exhaust pipe is fixed with bolts, which is not convenient for disassembly and installation during maintenance. Utility Model Content

[0004] The purpose of the present utility model is to provide an exhaust pipe assembly for a new energy vehicle to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: an exhaust pipe assembly for a new energy vehicle, comprising a first connecting pipe, an exhaust bellows, and a second connecting pipe connected in sequence, wherein the exhaust bellows is sheathed with a heat shield, clamps are installed on both sides of the heat shield, and a limit assembly is installed on the inside of the heat shield, wherein the limit assembly comprises a spring and an arc-shaped plate connected to the end of the spring, wherein the arc-shaped plate matches the exhaust bellows;

[0006] The outer side of the heat insulation cover is also provided with a mounting sleeve, and a detachable mounting assembly is installed on one side of the mounting sleeve. The mounting assembly includes a bracket, a clamping plate and a fixing plate clamped with the clamping plate. The clamping plate is installed at the bottom of the bracket.

[0007] Preferably, the installation assembly also includes a fixing groove opened on the fixing plate and a card block and a card slot that cooperate with each other, the fixing groove cooperates with the clamping plate, the card block is installed at both ends of the clamping plate, and a return spring is installed at the end of the card block, and the card slot is opened on the inner walls on both sides of the fixing groove.

[0008] Preferably, at least two second bolts are installed on the fixing plate.

[0009] Preferably, a push rod corresponding to the block is movably installed in the fixed plate, and a movable groove for the push rod to move is provided in the fixed plate.

[0010] Preferably, a fixing ring is installed between the exhaust bellows and the first connecting pipe and the second connecting pipe, and the exhaust bellows, the first connecting pipe and the second connecting pipe are all screwed together with the fixing ring via threads.

[0011] Preferably, the clamp comprises two half rings, and a first bolt is connected between the two half rings.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] (1) The utility model provides a heat insulation cover, which is put on the outside of the exhaust bellows and fixed by a clamp, so that the exhaust bellows is isolated from the outside and the aging speed of the exhaust bellows is slowed down. In addition, a spring and an arc plate are provided in the heat insulation cover, and the arc plate fits the exhaust bellows. On the one hand, the exhaust bellows is fixed, and on the other hand, the exhaust bellows can move within a certain range when bent, thereby ensuring the stability of its installation.

[0014] (2) The utility model provides a detachable installation component, in which a clamping block and a clamping slot cooperate to fix the clamping plate in the fixing slot. A return spring is connected to the inner side of the clamping block. When disassembling, the clamping block can be pushed out by a push rod, which makes disassembly and assembly easier during maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 It is a side view of the heat shield of the utility model;

[0017] Figure 3 It is a cross-sectional view of the utility model;

[0018] Figure 4 It is a top view of the utility model;

[0019] Figure 5 This is a front view of the installation assembly of the utility model;

[0020] Figure 6 for Figure 5 A magnified view of area A.

[0021] In the figure: 1-first connecting pipe; 2-clamp; 21-first bolt; 3-mounting sleeve; 4-second connecting pipe; 5-heat insulation cover; 51-spring; 52-arc plate; 6-exhaust bellows; 7-bracket; 8-second bolt; 9-fixing plate; 10-clamping plate; 11-block; 12-slot; 13-fixing ring; 14-fixing slot; 15-push rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figures 1-6 As shown, the utility model provides the following technical solutions: an exhaust pipe assembly for a new energy vehicle, comprising a first connecting pipe 1, an exhaust bellows 6, and a second connecting pipe 4 connected in sequence, the exhaust bellows 6 being sheathed with a heat shield 5 on the outside, the heat shield 5 being made of an aluminized plate or a hot-dip aluminized plate, clamps 2 being installed on both sides of the outside of the heat shield 5, and a limit assembly being installed on the inside of the heat shield 5, the limit assembly comprising a spring 51 and an arc-shaped plate 52 connected to the end of the spring 51, the arc-shaped plate 52 being matched with the exhaust bellows 6;

[0024] The outer side of the heat insulation cover 5 is also provided with a mounting sleeve 3, and a detachable mounting assembly is installed on one side of the mounting sleeve 3. The mounting assembly includes a bracket 7, a clamping plate 10 and a fixing plate 9 clamped and connected to the clamping plate 10. The clamping plate 10 is installed at the bottom of the bracket 7. At least two second bolts 8 are installed on the fixing plate 9. The bracket 7 serves to support the mounting sleeve 3.

[0025] In view of the above, when using the exhaust pipe assembly of the new energy vehicle, first put the heat insulation cover 5 on the outside of the exhaust bellows 6, so that the arc plate 52 fits the exhaust bellows 6, which can limit the exhaust bellows 6. During the operation of the new energy vehicle, when the exhaust bellows 6 bends or moves, the exhaust bellows 6 presses the spring 51 inward, so that the exhaust bellows 6 can move within a certain range to ensure its installation stability. Then put the installation sleeve 3 on the outside of the heat insulation cover 5, and fix the heat insulation cover 5 with the clamp 2, and then connect the first connecting pipe 1 and the second connecting pipe 4 to the two ends of the exhaust bellows 6. After fixing, use the second bolt 8 to install the fixing plate 9 of the installation assembly on the vehicle mounting plate. After installation, connect the first connecting pipe 1 and the second connecting pipe 4 to the muffler and the exhaust branch pipe respectively. When inspecting and disassembling, just remove the clamping plate 10 from the fixing plate 9.

[0026] Specifically, such as Figure 4-Figure 6 As shown, in one embodiment, regarding the above-mentioned installation components:

[0027] The mounting assembly further includes a fixing groove 14 formed on the fixing plate 9 and a clamping block 11 and a clamping groove 12 that cooperate with each other. The fixing groove 14 cooperates with the clamping plate 10. The clamping blocks 11 are mounted at both ends of the clamping plate 10. Return springs are mounted on the ends of the clamping blocks 11. The clamping grooves 12 are formed on the inner walls of both sides of the fixing groove 14.

[0028] A push rod 15 corresponding to the clamping block 11 is movably mounted in the fixing plate 9 , and a movable groove for the push rod 15 to move is provided in the fixing plate 9 .

[0029] In view of the above, when installing the mounting assembly, first align one of the clamping blocks 11 with the clamping slot 12. After locking one side, push the clamping plate 10 from the other side, so that the spring on one side of the clamping block 11 is pressed inward. At this time, the other clamping block 11 is squeezed so that the clamping block 11 can enter the fixing groove 14, thereby locking the other clamping block 11 into the clamping slot 12, thereby completing the installation of the mounting assembly;

[0030] During disassembly, the user pushes the push rod 15 inward so that one end of the push rod 15 rests against the block 11, and pushes the block 11 inward. The spring is then squeezed, allowing the block 11 to be pushed out of the slot 12. At this time, the bracket 7 is pulled upward to pull the locking plate 10 out of the fixing slot 14, thereby completing the disassembly of the installation assembly.

[0031] Specifically, such as Figure 3 As shown, in the present invention, a fixing ring 13 is installed between the exhaust bellows 6 and the first connecting pipe 1 and the second connecting pipe 4. There are two fixing rings 13. The inner wall of the fixing ring 13 is provided with an internal thread, and the outer walls of the exhaust bellows 6, the first connecting pipe 1 and the second connecting pipe 4 are provided with an external thread. The exhaust bellows 6, the first connecting pipe 1 and the second connecting pipe 4 are all connected to the fixing ring 13 by screwing. The connection by screwing is more convenient for disassembly and assembly.

[0032] In addition, if Figure 2 As shown, in the present invention, in order to facilitate the stable installation of the heat shield 5, the clamp 2 includes two half rings, and a first bolt 21 is connected between the two half rings. During installation, the two half rings are clamped on the heat shield 5, and the two half rings are tightened by the first bolt 21, thereby fixing the heat shield 5.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new energy vehicle exhaust pipe assembly, characterized by: The invention comprises a first connecting pipe (1), an exhaust bellows (6) and a second connecting pipe (4) connected in sequence, wherein the exhaust bellows (6) is provided with a heat shield (5) on the outside, clamps (2) are installed on both sides of the outside of the heat shield (5), and a limiting assembly is installed on the inside of the heat shield (5), wherein the limiting assembly comprises a spring (51) and an arc plate (52) connected to the end of the spring (51), and the arc plate (52) matches the exhaust bellows (6); The outer side of the heat shield (5) is also provided with a mounting sleeve (3), and a detachable mounting assembly is installed on one side of the mounting sleeve (3). The mounting assembly includes a bracket (7), a snap-fit plate (10), and a fixing plate (9) snap-fitted to the snap-fit plate (10), and the snap-fit plate (10) is installed at the bottom of the bracket (7).

2. The exhaust pipe assembly for a new energy vehicle according to claim 1, characterized in that: The mounting assembly further comprises a fixing groove (14) provided on the fixing plate (9) and a clamping block (11) and the clamping groove (12) which cooperate with each other. The fixing groove (14) cooperates with the clamping plate (10). The clamping block (11) is installed at both ends of the clamping plate (10), and a return spring is installed at the end of the clamping block (11). The clamping groove (12) is provided on the inner walls on both sides of the fixing groove (14).

3. The exhaust pipe assembly for a new energy vehicle according to claim 1, characterized in that: At least two second bolts (8) are installed on the fixing plate (9).

4. The exhaust pipe assembly for a new energy vehicle according to claim 2, characterized in that: A push rod (15) corresponding to the clamping block (11) is movably mounted in the fixing plate (9), and a movable groove for the push rod (15) to move is provided in the fixing plate (9).

5. The exhaust pipe assembly for a new energy vehicle according to claim 1, characterized in that: A fixing ring (13) is installed between the exhaust bellows (6), the first connecting pipe (1), and the second connecting pipe (4), and the exhaust bellows (6), the first connecting pipe (1), the second connecting pipe (4), and the fixing ring (13) are all screwed together via threads.

6. The exhaust pipe assembly for a new energy vehicle according to claim 1, characterized in that: The clamp (2) comprises two half rings, and a first bolt (21) is connected between the two half rings.

Images