Automobile three-way catalyst with heat insulation mechanism

Abstract

The utility model discloses a kind of automobile three-way catalysts with heat insulation mechanism belong to three-way catalyst technical field, including three-way catalyst body, three-way catalyst body is equipped with fender all around;Two rounds of limiting grooves are opened in the four around of three-way catalyst body, and two rounds of limiting grooves are slidably connected with radiating block inside, two rounds of radiating block top are equipped with slide, and one end of two rounds of slide top is rotatably connected with connecting rod, and the other end of two rounds of connecting rod is rotatably connected with the both ends of the bottom of a circle fender respectively, and the four around of three-way catalyst body is equipped with the buffer assembly for buffering fender, and fender is slid in limiting groove by slide and radiating block, reaches the effect of heat dissipation to three-way catalyst body by heat conduction, in sliding process, the contact position of radiating block and three-way catalyst body outer surface changes dynamically, can evenly take away different area heat, prevent local overtemperature, reduce catalyst sintering risk.

Description

Technical Field

[0001] This utility model relates to the field of three-way catalytic converter technology, specifically to an automotive three-way catalytic converter with a heat insulation mechanism. Background Technology

[0002] The three-way catalytic converter is the most important external purification device installed in the automotive exhaust system. A three-way catalytic converter with a heat insulation mechanism is an exhaust gas purification device that achieves heat management and protection functions based on the traditional three-way catalytic converter. For example, a new type of three-way catalytic converter heat insulation mechanism, with announcement number CN219672716U, uses a fixing block to push two separate heat insulation layers at the front end to adhere to the outer wall of the three-way catalytic converter. Simultaneously, a support block separates the baffle between the outer shell and the three-way catalytic converter, forming a barrier. The threaded plug can be turned to open the sealing groove and inject cold water. The cold water in the sealing groove blocks the heat conducted through the connecting pipe. By utilizing the structure that completely wraps the outside of the three-way catalytic converter to block heat and the connecting pipes on both sides to prevent further heat conduction, the heat insulation effect of the new three-way catalytic converter heat insulation mechanism is improved.

[0003] While the aforementioned technologies can improve the heat insulation effect of the three-way catalytic converter by using a structure that completely wraps the outside of the catalytic converter to block heat and a structure that connects the two sides to prevent further heat conduction, they have the problem of poor heat dissipation. Under high load conditions, unburned fuel undergoes secondary oxidation in the catalytic converter, releasing a large amount of heat. If this heat cannot be dissipated, the core temperature may exceed the optimal temperature range, causing the catalyst particles to sinter and the purification efficiency to drop sharply. Utility Model Content

[0004] The purpose of this invention is to provide a three-way catalytic converter for automobiles with a heat insulation mechanism, so as to solve the problem of poor heat dissipation of the three-way catalytic converters currently on the market as mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a three-way catalytic converter for automobiles with a heat insulation mechanism, comprising a three-way catalytic converter body, wherein protective plates are provided around the three-way catalytic converter body; two concentric grooves are provided around the three-way catalytic converter body, and heat dissipation blocks are slidably connected inside the two concentric grooves; a sliding plate is provided on the top of the two concentric heat dissipation blocks; a connecting rod is rotatably connected to one end of the top of the two concentric sliding plates; the other end of the two concentric connecting rods is rotatably connected to both ends of the bottom of a protective plate; and a buffer assembly is provided around the three-way catalytic converter body to buffer the protective plates.

[0006] Preferably, the buffer assembly includes two rings of first piston rods arranged around the three-way catalytic converter body, and a second piston rod is slidably connected inside each of the two rings of first piston rods. The ends of the two rings of second piston rods away from the first piston rods are respectively connected to the bottom of a protective plate.

[0007] Preferably, a third piston rod is provided at one end of the top of the two rings of the sliding plate, and a fourth piston rod is slidably connected inside the two rings of the third piston rod.

[0008] Preferably, one end of each of the two first piston rods and one end of each of the two third piston rods are provided with a hollow tube, and both hollow tubes are made of flexible material.

[0009] Preferably, a spring is provided between one end of each of the two rings of the second piston rod and the interior of each of the two rings of the first piston rod, and the two rings of the first piston rod are distributed at equal angles to the center point of the three-way catalytic converter body.

[0010] Preferably, both rings of limiting grooves and both rings of heat dissipation blocks are trapezoidal, the outer surface of the protective plate and the heat dissipation blocks of the first ring are made of metal, and the inner surface of the protective plate of the first ring is made of ceramic fiber.

[0011] Preferably, the ends of the two rings of fourth piston rods that are away from the third piston rod are made of flexible material, and the two rings of fourth piston rods are also distributed at an angle equal to the center point of the three-way catalytic converter body.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The protective plates surrounding the three-way catalytic converter provide protection and insulation for the converter itself. These plates can directly withstand impacts from road stones and protrusions, preventing deformation of the catalytic converter housing. They can also block the extreme high temperatures of engine exhaust, preventing the core temperature of the three-way catalytic converter from exceeding the threshold.

[0013] The protective plate drives the sliding plate and heat sink to slide inside the limiting groove, achieving the effect of heat dissipation of the three-way catalytic converter body through heat conduction. During the sliding process, the contact position between the heat sink and the outer surface of the three-way catalytic converter body changes dynamically, which can evenly remove heat from different areas, prevent local overheating, and reduce the risk of catalyst sintering.

[0014] The buffer components are designed to cushion the protective plate. When the protective plate is impacted, the buffer components can absorb the impact force, preventing the protective plate from breaking due to direct impact with hard objects. They can also reduce the probability of damage to the protective plate and increase its service life. Attached Figure Description

[0015] Figure 1 This is a front view of the structure of this utility model; Figure 2This is a front view of the structure of this utility model; Figure 3 This is a cross-sectional view of the protective plate structure of this utility model; Figure 4 This is a cross-sectional view of the structure of this utility model; Figure 5 This is a cross-sectional view of the first piston rod structure of this utility model; Figure 6 This utility model Figure 4 Enlarged view of the structure at point A in the middle.

[0016] In the diagram: 1. Three-way catalytic converter body; 2. Protective plate; 3. Limiting groove; 4. Heat sink; 5. Slide plate; 6. Connecting rod; 7. First piston rod; 8. Second piston rod; 9. Third piston rod; 10. Fourth piston rod; 11. Hollow tube; 12. Spring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] This utility model provides the following technical solution: a three-way catalytic converter for automobiles with a heat insulation mechanism. Example 1: As Figures 1-4 and Figure 6 As shown, the protective plate 2 and heat sink 4 can provide heat insulation, protection, and heat dissipation for the three-way catalytic converter body 1. The three-way catalytic converter body 1 is surrounded by protective plates 2. Two concentric grooves 3 are formed around the body, and heat sink 4 is slidably connected inside each groove 3. Each heat sink 4 has a sliding plate 5 on top, and a connecting rod 6 is rotatably connected to one end of the top of each sliding plate 5. The other ends of the connecting rods 6 are rotatably connected to the two ends of the bottom of each protective plate 2. Both the two concentric grooves 3 and the two heat sink 4 are trapezoidal (e.g., ...). Figure 6 As shown), both the outer part of the protective plate 2 and the heat sink 4 are made of metal, while the inner part of the protective plate 2 is made of ceramic fiber.

[0019] When the three-way catalytic converter body 1 is operating normally, the protective plate 2, made of external metal, can resist mechanical damage such as impacts from stones and scratches from the ground, preventing deformation of the outer shell of the three-way catalytic converter body 1. The metal material of the protective plate 2 can be stainless steel (e.g., ...). Figures 1-4(As shown) The ceramic fiber material inside the protective plate 2 effectively blocks the high temperature of the engine exhaust, ensuring that the three-way catalytic converter body 1 is within the optimal operating temperature range. When the protective plate 2 is subjected to vibration or impact and moves, it will drive the sliding plate 5 to move, thereby causing the heat sink 4 to slide inside the limiting groove 3 (as shown). Figures 1-4 and Figure 6 As shown in the figure, the heat of the three-way catalytic converter body 1 is then quickly transferred to the heat sink 4 body through the high thermal conductivity of the metal material. The heat is then dissipated through the heat sink 4, and the metal material of the heat sink 4 can be copper.

[0020] Example 2: Figures 2-6 As shown, unlike Embodiment 1, the buffer assembly can buffer the protective plate 2. The three-way catalytic converter body 1 is surrounded by a buffer assembly to buffer the protective plate 2. The buffer assembly includes two rings of first piston rods 7 arranged around the three-way catalytic converter body 1. A second piston rod 8 is slidably connected inside each of the two rings of first piston rods 7. The ends of the two rings of second piston rods 8 away from the first piston rods 7 are respectively connected to the bottom of a ring of protective plates 2. A third piston rod 9 is also provided at the top end of each of the two rings of sliding plates 5. A fourth piston rod 10 is slidably connected inside each of the two rings of third piston rods 9. A hollow tube 11 is provided at one end of each of the two rings of first piston rods 7 and one end of each of the two rings of third piston rods 9. Both hollow tubes 11 are made of flexible material. A spring 12 (e.g., ...) is provided between one end of each of the two rings of second piston rods 8 and the interior of each of the two rings of first piston rods 7. Figure 5 As shown), the two first piston rods 7 are distributed at equal angles to the center point of the three-way catalytic converter body 1, and the ends of the two fourth piston rods 10 that are away from the third piston rod 9 are made of flexible material, and the two fourth piston rods 10 are also distributed at equal angles to the center point of the three-way catalytic converter body 1.

[0021] When the protective plate 2 is impacted, it will cause the second piston rod 8 to slide inside the first piston rod 7, compressing the air inside the first piston rod 7 and the spring 12. The spring 12 first absorbs the impact energy (such as...). Figure 5 As shown), to avoid rigid transmission to the housing of the three-way catalytic converter body 1, and when the air inside the first piston rod 7 is compressed, it will also be transported to the inside of the third piston rod 9 by the action of the hollow tube 11 (as shown). Figure 3 and Figure 4 Then, the fourth piston rod 10 moves, and the flexible material on the surface of the fourth piston rod 10 comes into contact with the protective plate 2, further absorbing the impact force and thus buffering the protective plate 2. The flexible material can be silicone rubber.

[0022] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0023] The contents not described in detail in this specification are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A three-way catalytic converter for automobiles with a heat insulation mechanism, comprising a three-way catalytic converter body (1), wherein the three-way catalytic converter body (1) is provided with protective plates (2) on all four sides. Its features are: The three-way catalytic converter body (1) is provided with two rings of limiting grooves (3) around its perimeter. Heat sinks (4) are slidably connected inside the two rings of limiting grooves (3). Slide plates (5) are provided on the top of the two rings of heat sinks (4). A connecting rod (6) is rotatably connected to one end of the top of the two rings of sliding plates (5). The other end of the two rings of connecting rods (6) is rotatably connected to the two ends of the bottom of a protective plate (2). A buffer assembly is provided around the three-way catalytic converter body (1) to buffer the protective plate (2).

2. The automotive three-way catalytic converter with a heat insulation mechanism according to claim 1, characterized in that: The buffer assembly includes two rings of first piston rods (7) arranged around the three-way catalytic converter body (1). A second piston rod (8) is slidably connected inside each of the two rings of first piston rods (7). The ends of the two rings of second piston rods (8) away from the first piston rods (7) are respectively connected to the bottom of a protective plate (2).

3. A three-way catalytic converter for automobiles with a heat insulation mechanism according to claim 2, characterized in that: A third piston rod (9) is also provided at one end of the top of the two rings of the sliding plate (5), and a fourth piston rod (10) is slidably connected inside the two rings of the third piston rod (9).

4. A three-way catalytic converter for automobiles with a heat insulation mechanism according to claim 3, characterized in that: Hollow tubes (11) are provided at one end of the first piston rod (7) and at one end of the third piston rod (9) on both rings, and both hollow tubes (11) are made of flexible material.

5. A three-way catalytic converter for automobiles with a heat insulation mechanism according to claim 2, characterized in that: Springs (12) are provided between one end of the two rings of the second piston rod (8) and the inside of the two rings of the first piston rod (7), and the two rings of the first piston rod (7) are distributed at equal angles to the center point of the three-way catalytic converter body (1).

6. A three-way catalytic converter for automobiles with a heat insulation mechanism according to claim 1, characterized in that: Both the two rings of limiting grooves (3) and the two rings of heat dissipation blocks (4) are trapezoidal. The outer part of the one ring of protective plate (2) and the heat dissipation block (4) are made of metal, and the inner part of the one ring of protective plate (2) is made of ceramic fiber.

7. A three-way catalytic converter for automobiles with a heat insulation mechanism according to claim 3, characterized in that: The ends of the two rings of fourth piston rods (10) that are away from the third piston rod (9) are made of flexible material, and the two rings of fourth piston rods (10) are also distributed at the same angle as the center point of the three-way catalytic converter body (1).

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