Automobile three-way catalyst with efficient heat dissipation function

Abstract

The utility model discloses an efficient radiating automobile three-way catalyst, which relates to the field of automobile exhaust and comprises an exhaust purifier, one end of the exhaust purifier is connected with an air inlet, the other end of the exhaust purifier is connected with an exhaust port, the end of a radiating pipe is connected with a second communicating pipe, and a water inlet of a micro pump is connected with a third communicating pipe. And the third communicating pipe and the second communicating pipe are both connected into the cooling box in a penetrating mode, and the top and the inner side of the special-shaped block are both connected with placement grooves in a penetrating mode. When the efficient heat dissipation automobile three-way catalytic converter and an automobile engine are in load operation, the micro pump can be started to extract cooling liquid from the cooling box through centrifugal force, the cooling liquid is fed into the heat dissipation pipe in the tail gas purifier through the communicating pipe, and the cooling liquid flows back to the cooling box to be circulated after absorbing heat of tail gas; the temperature of tail gas entering the tail gas purifier is proper, and the service life of the tail gas purifier is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of automotive exhaust technology, specifically to a high-efficiency heat dissipation automotive three-way catalytic converter. Background Technology

[0002] Vehicle exhaust is the waste gas emitted after a car engine burns fuel. This exhaust gas pollutes the environment, so a three-way catalytic converter is needed for purification. The three-way catalytic converter uses a catalytic reaction to convert harmful gases emitted by the engine into harmless substances, thus reducing environmental pollution.

[0003] Currently, three-way catalytic converters still have some shortcomings, such as the inconvenience in cooling exhaust gases.

[0004] To overcome the problem of excessively high exhaust temperature in catalytic converters, a Chinese patent (publication number: CN206035601U) discloses a prior art technology. This technology incorporates turbine blades within the intake duct, which rotate when exhaust gas is introduced, accelerating the internal airflow without interruption. A guide vane evenly distributes the intake exhaust gas at different angles into various ducts of the catalyst carrier, ensuring uniform utilization of all parts of the carrier. Filter screens are installed on both sides of the catalyst carrier to remove particles generated by incomplete combustion in the engine, preventing blockage of internal passages. Heat sinks are installed on the outside of the exhaust duct to dissipate heat and cool the catalytically treated exhaust gas, reducing temperature pollution to the surrounding environment.

[0005] However, the currently used three-way catalytic converter still has certain shortcomings. The aforementioned document describes a catalytic converter with a filter screen to filter particulates. Over time, particulates on the filter screen can cause exhaust blockage. Furthermore, it cools the exhaust gas after catalysis. As we all know, exhaust gas must reach a certain temperature to react with the catalytic converter. However, the vehicle's load can cause the generator temperature to rise sharply, and the emitted gas will also be quite hot, far exceeding the temperature required for the catalytic reaction, which will affect the catalytic effect. Therefore, compared to the environmental pollution caused by heat, the degree of catalytic reaction of the exhaust gas is more important. The gas before catalysis should be cooled to ensure that it is within a certain temperature range. Therefore, the existing structure needs to be improved. Utility Model Content

[0006] The purpose of this invention is to provide a high-efficiency heat dissipation automotive three-way catalytic converter to solve the problem mentioned in the background art where excessively high catalytic converter temperature affects its lifespan.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency heat dissipation automotive three-way catalytic converter, including an exhaust gas purifier, one end of which is connected to an air inlet, and the other end of which is connected to an exhaust outlet.

[0008] The exhaust gas purifier has a symmetrically connected mounting bracket on its side. The mounting bracket includes a circular ring and a square frame. The circular ring is connected to the surface of the exhaust gas purifier, and a cooling box is connected inside the square frame. A micro pump is installed on the side of the cooling box near the air inlet. The micro pump is connected to the vehicle's electrical circuit. The exhaust gas purifier is provided with a heat dissipation mechanism on its side to improve the heat dissipation effect of the catalytic converter.

[0009] Furthermore, the heat dissipation mechanism includes a connecting pipe connected to the outlet of the micro pump, and a heat dissipation pipe is connected to one end of the connecting pipe. The heat dissipation pipe is installed inside the exhaust gas purifier near the air inlet.

[0010] Furthermore, the end of the heat dissipation pipe is connected to a second connecting pipe, and the inlet of the micro pump is connected to a third connecting pipe. Both the third connecting pipe and the second connecting pipe are connected through the inside of the cooling box.

[0011] Furthermore, the side of the cooling box is provided with an auxiliary mechanism to accelerate the evaporation of heat from the catalyst. The auxiliary mechanism includes a shaped block connected to the side of the cooling box.

[0012] Furthermore, the irregularly shaped block is located between two fixed frames, and multiple fins are connected to the side of the irregularly shaped block.

[0013] Furthermore, the top and inner side of the irregular block are both connected by mounting grooves, and the inner sides of the two mounting grooves are connected by metal foils. The two mounting grooves are respectively sealed to the exhaust gas purifier and the cooling box through the two metal foils.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This high-efficiency heat dissipation automotive three-way catalytic converter can start a micro pump when the car engine is under load. The pump uses centrifugal force to draw coolant from the cooling box and sends it through a connecting pipe into the heat dissipation pipe inside the exhaust gas purifier. After absorbing the heat of the exhaust gas, it flows back to the cooling box for circulation. Because the heat dissipation pipe is inside the exhaust gas purifier, the exhaust gas is cooled by the coolant as it passes by its side, ensuring that the temperature of the exhaust gas entering the exhaust gas purifier is suitable and guaranteeing the service life of the exhaust gas purifier.

[0016] 2. Equipped with heat dissipation pipes, which are installed inside the exhaust gas purifier, the excessively hot exhaust gas can be cooled in advance to prevent the exhaust gas from becoming too hot after entering the exhaust gas purifier and affecting the service life of the catalytic converter.

[0017] 3. A cooling box is provided, which contains coolant to effectively absorb the heat of the exhaust gas. However, since the cooling box is located at the bottom of the exhaust gas purifier, it is affected by the heat inside the purifier, and the temperature of the coolant will also be relatively high. Therefore, the heat dissipation effect is limited, but it will prevent the exhaust gas temperature from becoming too low to react with the exhaust gas purifier.

[0018] 4. It is equipped with metal foil, which can fill the gap between the exhaust gas purifier and the mounting slot, so that the metal foil can effectively and quickly transfer heat to the fins, achieving a rapid heat dissipation effect. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall frontal three-dimensional structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the overall disassembled three-dimensional structure of this utility model;

[0021] Figure 3 This is an enlarged three-dimensional structural diagram of the heat dissipation pipe of this utility model;

[0022] Figure 4 This is an enlarged three-dimensional structural diagram of the micro pump of this utility model;

[0023] Figure 5 This is an enlarged three-dimensional structural diagram of the cooling box of this utility model;

[0024] Figure 6 This is an enlarged three-dimensional structural diagram of the metal foil sheet of this utility model.

[0025] In the diagram: 1. Exhaust gas purifier; 2. Air inlet; 3. Exhaust outlet; 101. Fixing frame; 102. Cooling box; 103. Micro pump; 104. Connecting pipe one; 105. Heat dissipation pipe; 106. Connecting pipe two; 107. Connecting pipe three; 201. Irregular block; 202. Fin; 203. Mounting slot; 204. Metal foil. Detailed Implementation

[0026] 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.

[0027] Example 1, such as Figure 1 , Figure 2 , Figure 3 and Figure 4The technical solution shown is provided by this utility model as follows: To solve the problem of excessively high catalyst temperature affecting its lifespan, a heat dissipation mechanism is disclosed: including an exhaust gas purifier 1, one end of which is connected to an air inlet 2, and the other end of which is connected to an exhaust outlet 3; symmetrically connected to the side of the exhaust gas purifier 1 are fixing frames 101, which include a circular ring and a square frame, with the circular ring connected to the surface of the exhaust gas purifier 1, and a cooling box 102 connected inside the square frame; a micro pump 103 is installed on the side of the cooling box 102 near the air inlet 2. The micro pump 103 is connected to the vehicle's electrical circuit. The exhaust gas purifier 1 has a heat dissipation mechanism on its side to improve the heat dissipation effect of the catalytic converter. The heat dissipation mechanism includes a connecting pipe 104 connected to the outlet of the micro pump 103. The end of the connecting pipe 104 is connected to a heat dissipation pipe 105. The heat dissipation pipe 105 is installed inside the exhaust gas purifier 1 near the air inlet 2. The end of the heat dissipation pipe 105 is connected to a connecting pipe 2 106. The inlet of the micro pump 103 is connected to a connecting pipe 3 107. The connecting pipe 3 107 and the connecting pipe 2 106 are both connected inside the cooling box 102.

[0028] When a car's engine is running under load, the exhaust gas temperature is very high before it enters the exhaust gas purifier 1. This can affect the reaction efficiency between the exhaust gas purifier 1 and the exhaust gas, and can also cause the exhaust gas purifier 1 to overheat, affecting its service life. Figure 3 As shown, the operator can start the micro pump 103 when the vehicle is under load. The micro pump 103 can use centrifugal force to draw coolant from the coolant tank 102 through the inlet and connecting pipe 3 107. Then, the micro pump 103 can deliver the coolant through the outlet to the connecting pipe 1 104. The coolant can then be delivered through the connecting pipe 1 104 to the radiator pipe 105 and then to the connecting pipe 2 106, and finally back to the coolant tank 102 for recycling. Since the radiator pipe 105 is inside the exhaust gas purifier 1 and the exhaust gas passes through from the side, the temperature of the exhaust gas will be absorbed by the flowing coolant, achieving a certain degree of cooling. After cooling, the exhaust gas will reach a suitable temperature when it enters the exhaust gas purifier 1 for reaction, and there will be no abnormal high temperature, thus ensuring the service life of the exhaust gas purifier 1.

[0029] Example 2, as follows Figure 1 , Figure 2 , Figure 5 and Figure 6The present invention provides the following technical solution to address the problem of insufficient heat dissipation in the catalytic converter's heat dissipation mechanism. Based on Embodiment 1, an auxiliary mechanism is disclosed: an auxiliary mechanism to accelerate the evaporation of heat from the catalytic converter is provided on the side of the cooling box 102. The auxiliary mechanism includes a shaped block 201 connected to the side of the cooling box 102. The shaped block 201 is located between two fixed frames 101. Multiple fins 202 are connected to the side of the shaped block 201. A mounting groove 203 is connected through the top and inner side of the shaped block 201. Metal foils 204 are connected to the inner side of both mounting grooves 203. The two mounting grooves 203 are respectively sealed to the exhaust gas purifier 1 and the cooling box 102 through the two metal foils 204.

[0030] During the operation of the catalytic converter, the exhaust gas purifier 1 reacts with the exhaust gas and generates heat. The exhaust gas purifier 1 and the mounting bracket 101 are respectively located inside the two mounting slots 203, such as... Figure 6 As shown, a metal foil 204 is added between the exhaust gas purifier 1 and the mounting slot 203, so there is no gap between the exhaust gas purifier 1 and the mounting slot 203, and there is also no gap between the mounting bracket 101 and the mounting slot 203. Since the metal foil 204 is thermally conductive, the heat from the exhaust gas purifier 1 and the mounting bracket 101 will be transferred to the irregular block 201 through the metal foil 204. The heat of the mounting bracket 101 is caused by the long-term operation of the heat dissipation mechanism. The temperature of the exhaust gas purifier 1 will be transferred to the interior of the irregular block 201 through the metal foil 204. The irregular block 201 will then dissipate heat through the fins 202 on the side. When the vehicle is running, the airflow will pass quickly through the fins 202, achieving rapid cooling of the irregular block 201 and further improving the heat dissipation effect of the exhaust gas purifier 1.

[0031] 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 high-efficiency heat dissipation automotive three-way catalytic converter, comprising an exhaust gas purifier (1), wherein one end of the exhaust gas purifier (1) is connected to an air inlet (2), and the other end of the exhaust gas purifier (1) is connected to an exhaust outlet (3), characterized in that: The exhaust gas purifier (1) is symmetrically connected to a mounting bracket (101) on its side. The mounting bracket (101) includes a ring and a square frame. The ring is connected to the surface of the exhaust gas purifier (1), and a cooling box (102) is connected inside the square frame. A micro pump (103) is installed on the side of the cooling box (102) near the air inlet (2). The micro pump (103) is connected to the vehicle circuit. The exhaust gas purifier (1) is provided with a heat dissipation mechanism on its side to improve the heat dissipation effect of the catalytic converter.

2. The high-efficiency heat dissipation automotive three-way catalytic converter according to claim 1, characterized in that: The heat dissipation mechanism includes a connecting pipe (104) connected to the outlet of the micro pump (103), and a heat dissipation pipe (105) is connected to the end of the connecting pipe (104). The heat dissipation pipe (105) is installed inside the exhaust gas purifier (1) near the air inlet (2).

3. The high-efficiency heat dissipation automotive three-way catalytic converter according to claim 2, characterized in that: The end of the heat dissipation pipe (105) is connected to a connecting pipe two (106), and the inlet of the micro pump (103) is connected to a connecting pipe three (107). The connecting pipe three (107) and the connecting pipe two (106) are both connected through the inside of the cooling box (102).

4. The high-efficiency heat dissipation automotive three-way catalytic converter according to claim 1, characterized in that: The side of the cooling box (102) is provided with an auxiliary mechanism to accelerate the evaporation of heat from the catalyst. The auxiliary mechanism includes a shaped block (201) connected to the side of the cooling box (102).

5. The high-efficiency heat dissipation automotive three-way catalytic converter according to claim 4, characterized in that: The irregular block (201) is located between two fixed frames (101), and multiple fins (202) are connected to the side of the irregular block (201).

6. The high-efficiency heat dissipation automotive three-way catalytic converter according to claim 4, characterized in that: The top and inner side of the irregular block (201) are connected by a mounting groove (203), and the inner side of the two mounting grooves (203) is connected by a metal foil (204). The two mounting grooves (203) are respectively connected to the exhaust gas purifier (1) and the cooling box (102) through the two metal foils (204).

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