Heating device, exhaust gas treatment system and vehicle

Abstract

The application discloses a heating device, an exhaust treatment system and a vehicle. The heating device comprises a first shell, a heating element and a second shell, the first shell is provided with a first inlet, a first outlet and a first channel, the heating element is used for heating the gas flowing into the first channel, the second shell is provided with a second inlet, a second outlet and a second channel, the first outlet and the second outlet are suitable for being connected with a gas treatment device, the first shell and the second shell are in a split structure, and the gas can selectively flow into the gas treatment device through at least one of the first channel and the second channel. According to the heating device, the first shell and the second shell are in a split structure, the physical separation of the first channel and the second channel is realized, only a single channel exists in each of the first shell and the second shell, the structure is simple, the manufacturing is convenient, the manufacturing can be completed only by simple machining and assembling, the production efficiency of the heating device is improved, the production cost is reduced, and the large-scale production is facilitated.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more specifically, to a heating device, an exhaust gas treatment system, and a vehicle. Background Technology

[0002] In related technologies, only gases that have reached the temperature threshold can react with substances such as catalysts in the gas processing device when they flow through it, in order to reduce harmful substances in the gas. Usually, a heating device is required to heat the gas that does not meet the temperature requirements. However, the heating device has a complex structure, is difficult to manufacture, and has a high manufacturing cost. Utility Model Content

[0003] This application aims to at least partially address one of the aforementioned technical problems in the prior art. To this end, this application proposes a heating device that helps reduce the processing difficulty and save manufacturing costs.

[0004] This application also proposes an exhaust gas treatment system having the above-mentioned heating device.

[0005] This application also proposes a vehicle having the above-described exhaust gas treatment system or the above-described heating device.

[0006] The heating device according to an embodiment of this application includes a first housing, a heating element, and a second housing. The first housing has a first inlet and a first outlet, and a first channel is formed between the first inlet and the first outlet. The first outlet is adapted to be connected to a gas processing device. The heating element is used to heat the gas flowing into the first channel. The second housing has a second inlet and a second outlet, and a second channel is formed between the second inlet and the second outlet. The second outlet is adapted to be connected to a gas processing device. The first housing and the second housing are separate structures, and the gas can selectively flow into the gas processing device through at least one of the first channel and the second channel.

[0007] The heating device according to the embodiments of this application achieves physical separation of the first channel and the second channel by adopting a split structure between the first shell and the second shell. Since there is only a single channel in each of the first shell and the second shell, the structure is simple and easy to manufacture. It can be manufactured with only simple processing and assembly, which significantly improves the production efficiency of the heating device, reduces the production cost, and facilitates mass production.

[0008] According to some embodiments of this application, the heating device further includes a first valve structure, which has at least a first state and a second state. When the first valve structure is in the first state, the first inlet is opened and the second inlet is closed, and the first channel can be connected to the gas outside the first channel through the first inlet. When the first valve structure is in the second state, the first inlet is closed and the second inlet is opened, and the second channel can be connected to the gas outside the second channel through the second inlet.

[0009] According to some embodiments of this application, the first valve structure is rotatably disposed at one end of the first channel facing the first inlet and at one end of the second channel facing the second inlet.

[0010] According to some embodiments of this application, the heating device further includes a second valve structure, which has at least a third state and a fourth state. When the second valve structure is in the third state, the first outlet is opened and the second outlet is closed, and the first channel can be connected to the gas outside the first channel through the first outlet. When the second valve structure is in the fourth state, the first outlet is closed and the second outlet is opened, and the second channel can be connected to the gas outside the second channel through the second outlet.

[0011] According to some embodiments of this application, the second valve structure is rotatably disposed at one end of the first channel facing the first outlet and at one end of the second channel facing the second outlet.

[0012] According to some embodiments of this application, the first valve structure and the second valve structure are configured to move synchronously, and when the first valve structure is in the first state, the second valve structure is in the third state; when the first valve structure is in the second state, the second valve structure is in the fourth state.

[0013] According to some embodiments of this application, the first valve structure has a first valve port and a second valve port. When the first valve structure rotates, the first valve port selectively connects to the first inlet, and the second valve port selectively connects to the second inlet.

[0014] According to some embodiments of this application, the second valve structure has a third valve port and a fourth valve port. When the second valve structure rotates, the third valve port selectively connects to the first outlet, and the fourth valve port selectively connects to the second outlet.

[0015] According to some embodiments of this application, both the first valve structure and the second valve structure are constructed as a double-spherical structure, and the double-spherical structure is an integral structure.

[0016] According to some embodiments of this application, the heating device further includes a driving device, which is drivenly connected to the first valve structure and also drivenly connected to the second valve structure. The driving device is used to drive the first valve structure and the second valve structure to move.

[0017] According to some embodiments of this application, the driving device includes a transmission mechanism and a driving member, the driving member and the transmission mechanism are drivenly connected, the transmission mechanism is drivenly connected to the first valve structure, the transmission mechanism is also drivenly connected to the second valve structure, and the driving member drives the first valve structure and the second valve structure to rotate through the transmission mechanism.

[0018] According to some embodiments of this application, the transmission mechanism is a gear transmission mechanism and includes at least a first gear, a second gear and a third gear. The first valve structure is provided with a first shaft, the second valve structure is provided with a second shaft, the first gear is fixedly connected to the first shaft, the second gear is fixedly connected to the second shaft, and the third gear is connected to the output shaft of the driving member. The first gear and the second gear are both meshed with the third gear.

[0019] According to some embodiments of this application, the first valve structure includes a first valve and a second valve, the first valve and the second valve are separate structures, the first valve is used to control the opening or closing of the first inlet, and the second valve is used to control the opening or closing of the second inlet.

[0020] According to some embodiments of this application, the second valve structure includes a third valve and a fourth valve, the third valve and the fourth valve being a separate structure, the third valve being used to control the opening or closing of the first outlet, and the fourth valve being used to control the opening or closing of the second outlet.

[0021] According to some embodiments of this application, the heating device further includes a driving device for driving the first valve, the second valve, the third valve, and the fourth valve to rotate.

[0022] According to some embodiments of this application, the first valve, the second valve, the third valve, and the fourth valve are all plate-shaped structures.

[0023] According to some embodiments of this application, the heating device further includes a first connector structure and / or a second connector structure. One end of the first housing and one end of the second housing are both connected to the first connector structure. The first connector structure has a first transition cavity and a total inlet. The first inlet and the second inlet are both connected to the total inlet through the first transition cavity. The first valve structure is disposed in the first transition cavity. The other end of the first housing and the other end of the second housing are both connected to the second connector structure. The second connector structure has a second transition cavity and a total outlet. The first outlet and the second outlet are both connected to the total outlet through the second transition cavity. The total outlet is adapted to be connected to a gas processing device. The second valve structure is disposed in the second transition cavity.

[0024] According to some embodiments of this application, the first connector structure includes a first half and a second half, which are engaged to enclose the main inlet and the first transition cavity.

[0025] According to some embodiments of this application, the second connector structure includes a third half and a fourth half, which are engaged to enclose the main outlet and the second transition cavity.

[0026] According to some embodiments of this application, the first transition cavity is at least partially constructed as a first double-spherical cavity, the first valve structure is disposed within the first double-spherical cavity, and the second transition cavity is at least partially constructed as a second double-spherical cavity, the second valve structure is disposed within the second double-spherical cavity.

[0027] According to some embodiments of this application, the heating element includes a heating wire, and the heating device further includes a mounting base, the mounting base being fixed to the first housing, and the heating wire being wound around the mounting base.

[0028] According to some embodiments of this application, the mounting base includes a winding frame and a fixing part. The winding frame is an insulating frame, the heating wire is wound on the winding frame, and the fixing part is connected to the winding frame and fixed to the first housing.

[0029] According to some embodiments of this application, the heating device further includes a first electrode post and a second electrode post. The first housing has a first electrode post hole and a second electrode post hole. The first electrode post passes through the first electrode post hole and is connected to one end of the heating element. The first electrode post is also adapted to be connected to the positive terminal of the power supply element. The second electrode post passes through the second electrode post hole and is connected to the other end of the heating element. The second electrode post is also adapted to be connected to the negative terminal of the power supply element.

[0030] According to some embodiments of this application, the heating device further includes a first fixing sleeve and a second fixing sleeve. The first fixing sleeve is fixedly connected to the first housing. The first fixing sleeve has a first mounting hole that communicates with the first electrode post hole. The first electrode post passes through the first mounting hole. A first insulating sleeve is provided between the outer peripheral surface of the first electrode post and the hole wall of the first mounting hole. The second fixing sleeve is fixedly connected to the first housing. The second fixing sleeve has a second mounting hole that communicates with the second electrode post hole. The second electrode post passes through the second mounting hole. A second insulating sleeve is provided between the outer peripheral surface of the second electrode post and the hole wall of the second mounting hole.

[0031] According to another embodiment of the present application, the exhaust gas treatment system includes the heating device described above.

[0032] According to another embodiment of the exhaust gas treatment system of this application, the heating device adopts a split structure of the first housing and the second housing, realizing the physical separation of the first channel and the second channel. Since there is only a single channel in each of the first housing and the second housing, the structure is simple and easy to manufacture. It can be manufactured with only simple processing and assembly, which significantly improves the production efficiency of the heating device, reduces the production cost, and facilitates mass production.

[0033] According to some embodiments of this application, the exhaust gas treatment system further includes an engine and a gas treatment device, the heating device having a total inlet and a total outlet, the exhaust end of the engine being connected to the total inlet, and the total outlet being connected to the gas treatment device.

[0034] According to some embodiments of this application, the gas processing device has an air inlet, and the total outlet is adapted to be connected to the air inlet.

[0035] A vehicle according to another aspect of this application includes the heating device described above, or the exhaust gas treatment system described above.

[0036] According to another aspect of the present application, the heating device of the vehicle adopts a split structure of the first housing and the second housing, which realizes the physical separation of the first channel and the second channel. Since there is only a single channel in each of the first housing and the second housing, the structure is simple and easy to manufacture. It can be manufactured with only simple processing and assembly, which significantly improves the production efficiency of the heating device, reduces the production cost, and facilitates mass production.

[0037] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0038] Figure 1 This is a perspective view of the heating device according to the first embodiment of this application after the driving device has been removed;

[0039] Figure 2 This is an exploded view of the heating device according to the first embodiment of this application after the driving device has been removed;

[0040] Figure 3 This is a cross-sectional view of the gas flow through the first channel of the heating device according to the first embodiment of this application;

[0041] Figure 4 It is based on Figure 3 A magnified view of a section at point A in the middle;

[0042] Figure 5 This is a cross-sectional view of the gas flow through the second channel in the heating device according to the first embodiment of this application;

[0043] Figure 6 This is a perspective view of the heating device according to the first embodiment of this application when it includes a driving device;

[0044] Figure 7 This is a perspective view of the heating device according to the second embodiment of this application after the driving device has been removed;

[0045] Figure 8 This is an exploded view of the heating device according to the second embodiment of this application after the driving device has been removed;

[0046] Figure 9 This is a cross-sectional view of the gas flowing through the first channel in the heating device according to the second embodiment of this application;

[0047] Figure 10 This is a cross-sectional view of the gas flow through the second channel in the heating device according to the second embodiment of this application;

[0048] Figure 11 This is a schematic diagram of an exhaust gas treatment system according to an embodiment of this application;

[0049] Figure 12 This is a schematic diagram of a vehicle according to the first embodiment of this application;

[0050] Figure 13 This is a schematic diagram of a vehicle according to the second embodiment of this application.

[0051] Figure label:

[0052] Vehicle 1000, exhaust gas treatment system 100, heating device 10, first housing 1, first inlet 11, first outlet 12, first electrode post hole 13, second electrode post hole 14, second housing 2, second inlet 21, second outlet 22, heating element 31, mounting base 32, winding frame 321, fixing part 322, first electrode post 331, second electrode post 332, first fixing sleeve 341, second fixing sleeve 342, first insulating sleeve 351, second insulating sleeve 352, drive device 4, transmission mechanism 41, first gear 411, second gear 412 413, third gear, 42, drive component, 423, first connector structure, 5, first transition cavity, 51, main inlet, 52, first half, 53, second half, 54, second connector structure, 6, second transition cavity, 61, main outlet, 62, third half, 63, fourth half, 64, first valve structure, 71, first valve hole, 711, second valve hole, 712, first shaft, 713, first valve, 714, second valve, 715, second valve structure, 72, third valve hole, 721, fourth valve hole, 722, second shaft, 723, third valve, 724, fourth valve, 725. Detailed Implementation

[0053] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0054] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0055] The following is combined Figures 1-13 This application describes in detail a heating device 10, an exhaust gas treatment system 100 having the heating device 10, and a vehicle 1000 having the exhaust gas treatment system 100 or the heating device 10 according to embodiments of the present application.

[0056] See Figures 1-5 , Figures 7-10As shown, the heating device 10 according to an embodiment of this application may include a first housing 1, a heating element 31, and a second housing 2. The first housing 1 has a first inlet 11 and a first outlet 12, forming a first channel between the first inlet 11 and the first outlet 12. The first outlet 12 is adapted to be connected to a gas processing device. The heating element 31 is used to heat the gas flowing into the first channel. The second housing 2 has a second inlet 21 and a second outlet 22, forming a second channel between the second inlet 21 and the second outlet 22. The second outlet 22 is adapted to be connected to a gas processing device. The first housing 1 and the second housing 2 are separate structures, and the gas can selectively flow into the gas processing device through at least one of the first channel and the second channel.

[0057] Specifically, the gas needs to reach a certain temperature threshold to react with the catalyst and other substances in the gas treatment device, thereby converting harmful substances in the gas and reducing their concentration. When the gas temperature is insufficient, it first flows through the first channel and is heated by the heating element 31, thus increasing the gas temperature and solving the problem of insufficient reaction with the catalyst when the gas temperature is below the threshold. When the gas temperature is sufficient to react with the catalyst and other substances in the gas treatment device, the gas does not need to flow through the first channel but can directly flow through the second channel and into the gas treatment device, directly treating the gas. In this case, the heating element 31 can be inactive, reducing energy consumption. Furthermore, it prevents the heating element 31 from contacting the high-temperature gas, avoiding corrosion caused by prolonged exposure to high temperatures.

[0058] The first housing 1 and the second housing 2 adopt a split structure, which realizes the physical separation of the first channel and the second channel. This avoids the complex housing structure caused by the arrangement of the first channel and the second channel in a single housing. Since there is only a single channel in each of the first housing 1 and the second housing 2, the structure is simple and easy to manufacture. The heating device 10 can be manufactured with only simple processing and assembly, which significantly improves the production efficiency of the heating device 10, reduces the production cost, and facilitates mass production.

[0059] In some embodiments, the first housing 1 and the second housing 2 do not share a common pipe wall and are not integrally formed. The first outlet 12 is adapted to be directly or indirectly connected to the gas processing device, and the second outlet 22 is adapted to be directly or indirectly connected to the gas processing device.

[0060] The first shell 1 and the second shell 2 can be separated from each other in space, or they can be attached together.

[0061] In related technologies, only gases that have reached the temperature threshold can react with substances such as catalysts in the gas processing device when they flow through it, in order to reduce harmful substances in the gas. Usually, a heating device is required to heat the gas that does not meet the temperature requirements. However, the heating device has a complex structure, is difficult to manufacture, and has a high manufacturing cost.

[0062] The heating device 10 according to the embodiments of this application adopts a split structure of the first housing 1 and the second housing 2, which realizes the physical separation of the first channel and the second channel. Since there is only a single channel in each of the first housing 1 and the second housing 2, the structure is simple and easy to manufacture. It can be manufactured with only simple processing and assembly, which significantly improves the production efficiency of the heating device 10, reduces the production cost, and facilitates mass production.

[0063] In some embodiments of this application, see Figures 2-3 , Figures 8-10 As shown, the heating device 10 also includes a first valve structure 71, which has at least a first state and a second state. When the first valve structure 71 is in the first state, the first inlet 11 is opened and the second inlet 21 is closed, and the first channel can be connected to the gas outside the first channel through the first inlet 11. When the first valve structure 71 is in the second state, the first inlet 11 is closed and the second inlet 21 is opened, and the second channel can be connected to the gas outside the second channel through the second inlet 21.

[0064] Specifically, when the gas requires heating (e.g., the exhaust gas from a cold-start vehicle 1000 has not reached the catalytic ignition temperature), the first valve structure 71 switches to the first state, allowing all the gas to flow through the first channel. After being heated by the heating element 31 within the first channel, the gas temperature meets the requirements of the gas treatment device, thus achieving gas treatment. When the gas does not require heating (e.g., the exhaust gas temperature of a vehicle 1000 during normal operation has reached the standard), the first valve structure 71 switches to the second state, allowing all the gas to pass through the second channel, preventing the heating element 31 from contacting the high-temperature gas and fundamentally avoiding the corrosion problem caused by the heating element 31 being exposed to a high-temperature environment for a long time.

[0065] In some embodiments of this application, see Figures 2-3 , Figures 8-10As shown, the first valve structure 71 is rotatably disposed at one end of the first channel facing the first inlet 11 and at one end of the second channel facing the second inlet 21. Specifically, the first valve structure 71 can switch between the first and second states through its own rotation. Compared with translation, insertion, and other methods, the rotational switching has a shorter stroke, occupies less space, and has a more continuous action, enabling rapid response to changes in operating conditions. For example, when the vehicle is cold-started at 1000 rpm, it needs to switch to the first channel immediately. Rotating the first valve structure 71 can complete the switch in a short time, reducing the delay in heating the exhaust gas.

[0066] In some embodiments, the first valve structure 71 contacts the end of the first channel facing the first inlet 11.

[0067] In some embodiments, the first valve structure 71 is spaced apart from the end of the first channel facing the first inlet 11.

[0068] In some embodiments, the first valve structure 71 may be located at least partially inside the first channel (not shown in the figure). For example, when the first valve structure 71 is rotated, the first valve structure 71 extends partially into the interior of the first channel.

[0069] In some embodiments, the first valve structure 71 may be located outside the first channel.

[0070] In some embodiments, the first valve structure 71 is spaced apart from the end of the second channel facing the second inlet 21.

[0071] In some embodiments, the first valve structure 71 contacts the end of the second channel facing the second inlet 21.

[0072] In some embodiments, the first valve structure 71 may be located at least partially inside the second channel (not shown in the figure). For example, when the first valve structure 71 rotates, the first valve structure 71 extends partially into the interior of the second channel.

[0073] In some embodiments, the first valve structure 71 may be located outside the second channel. See also some embodiments of this application. Figures 2-3 , Figures 8-10As shown, the heating device 10 also includes a second valve structure 72, which has at least a third state and a fourth state. When the second valve structure 72 is in the third state, the first outlet 12 is opened and the second outlet 22 is closed, allowing the first channel to communicate with gas outside the first channel through the first outlet 12. When the second valve structure 72 is in the fourth state, the first outlet 12 is closed and the second outlet 22 is opened, allowing the second channel to communicate with gas outside the second channel through the second outlet 22. Specifically, when either the first or second channel does not require gas flow, the second valve structure 72 can block the channel, effectively preventing gas from flowing into it, thus allowing the gas to flow normally into the gas processing device.

[0074] For example, when the first valve structure 71 is in the second state and the second valve structure 72 is in the fourth state, the gas flows into the gas processing device through the second channel. At this time, the gas temperature is high. The second valve structure 72 can effectively prevent the high-temperature gas from entering the first channel, thus avoiding corrosion and aging of the heating element 31 due to long-term contact with high-temperature gas, and significantly extending the service life of the heating element 31.

[0075] In some embodiments of this application, see Figures 2-3 , Figures 8-10 As shown, the second valve structure 72 is rotatably disposed at one end of the first channel facing the first outlet 12 and at one end of the second channel facing the second outlet 22. Specifically, the second valve structure 72 achieves the transition between the third and fourth states through its own rotation. Compared with translation, insertion, and other methods, the rotational switching has a shorter stroke, occupies less space, and provides more continuous action, enabling rapid response to changes in operating conditions. For example, if the vehicle 1000 needs to switch to the second channel during normal driving, rotating the second valve structure 72 can complete the switch in a short time.

[0076] In some embodiments, the second valve structure 72 contacts the end of the first channel facing the first outlet 12.

[0077] In some embodiments, the second valve structure 72 is spaced apart from the end of the first channel facing the first outlet 12.

[0078] In some embodiments, the second valve structure 72 may be located at least partially inside the first channel (not shown in the figure). For example, when the second valve structure 72 rotates, the second valve structure 72 extends partially into the interior of the first channel.

[0079] In some embodiments, the second valve structure 72 may be located outside the first channel.

[0080] In some embodiments, the second valve structure 72 is spaced apart from one end of the second channel facing the second outlet 22.

[0081] In some embodiments, the second valve structure 72 contacts one end of the second channel facing the second outlet 22.

[0082] In some embodiments, the second valve structure 72 may be located at least partially inside the second channel (not shown in the figure). For example, when the second valve structure 72 rotates, the second valve structure 72 extends partially into the interior of the second channel.

[0083] In some embodiments, the second valve structure 72 may be located outside the second channel.

[0084] In some embodiments of this application, see Figures 2-3 , Figures 8-10 As shown, the first valve structure 71 and the second valve structure 72 are configured to move synchronously, and when the first valve structure 71 is in the first state, the second valve structure 72 is in the third state; when the first valve structure 71 is in the second state, the second valve structure 72 is in the fourth state.

[0085] Specifically, when the gas temperature in the first transition chamber 51 has not reached the temperature threshold, the first valve structure 71 moves to the first state, and the second valve structure 72 moves to the third state simultaneously. The gas can then pass through the first channel and be heated by the heating element 31 to reach the temperature threshold. The heated gas then flows to the gas processing device. When the gas temperature before the first valve structure 71 reaches the temperature threshold, the first valve structure 71 moves to the second state, and the second valve structure 72 moves to the fourth state simultaneously. The gas then flows through the second channel and the second transition chamber 61 to the gas processing device.

[0086] The first valve structure 71 controls the opening and closing of the first inlet 11 and the second inlet 21. The second valve structure 72 works synchronously with the first valve structure 71 to form a double seal at the inlet and outlet ends of the corresponding channels, effectively preventing gas from flowing into the channels and allowing the gas to flow normally into the gas processing device. For example, when the first inlet 11 is blocked, the first outlet 12 is also blocked, preventing gas from flowing into the first channel through the second outlet 22. At this time, both the second inlet 21 and the second outlet 22 are open. When the first inlet 11 is open, the first outlet 12 is also open, and both the second inlet 21 and the second outlet 22 are blocked, preventing gas from flowing into the second channel through the second outlet 22.

[0087] In some embodiments, the heating device 10 further includes a temperature sensor for detecting the gas temperature in the first transition chamber 51.

[0088] In some embodiments of this application, see Figures 1-5As shown, the first valve structure 71 has a first valve hole 711 and a second valve hole 712. When the first valve structure 71 rotates, the first valve hole 711 selectively connects to the first inlet 11, and the second valve hole 712 selectively connects to the second inlet 21.

[0089] Specifically, the positions of the first valve hole 711 and the second valve hole 712 can be precisely designed according to the layout of the first channel and the second channel. When the first valve structure 71 is in the first state, the first valve hole 711 is connected to the first channel and offset from the second channel. At the same time, the second valve hole 712 is offset from the second channel and is not connected, ensuring that the first channel is open. When the first valve structure 71 is in the second state, the second valve hole 712 is connected to the second channel, and the first valve hole 711 is offset from the first channel and is not connected, realizing that the second channel is open. Compared with the baffle-type valve structure without a clear valve hole, the on / off state is clearer and the boundary is more defined, which can completely avoid cross-flow between the first channel and the second channel. For example, the valve hole-free area of ​​the first valve structure 71 can be tightly fitted to the inner wall of the heating device 10 to form a seal. The inner wall of the heating device 10 can be the inner wall of the second transition cavity 61 described below.

[0090] It should be understood that in this application, "conducting" means that gas can pass through. For example, "conducting" the first channel means that the gas in the first valve structure 71 can flow through the first channel to the gas processing device. Similarly, "conducting" the second channel means that the gas in the first valve structure 71 can flow through the second channel to the gas processing device. In this application, "misaligned" valve orifice and channel refer to the valve orifice and channel not being connected.

[0091] In some embodiments of this application, see Figures 1-5 As shown, the second valve structure 72 has a third valve hole 721 and a fourth valve hole 722. When the second valve structure 72 rotates, the third valve hole 721 selectively connects to the first outlet 12, and the fourth valve hole 722 selectively connects to the second outlet 22.

[0092] Specifically, the positions of the third valve hole 721 and the fourth valve hole 722 can be precisely designed according to the layout of the first channel and the second channel. When the second valve structure 72 is in the third state, the third valve hole 721 is connected to the first channel and offset from the second channel, while the fourth valve hole 722 is offset from the second channel and not connected, ensuring that the first channel is independently connected. When the second valve structure 72 is in the second state, the fourth valve hole 722 is connected to the second channel, and the third valve hole 721 is offset from the first channel and not connected, achieving independent connection of the second channel. Compared with the baffle-type valve structure without clearly defined valve holes, the on / off state is clearer and the boundary is more defined, which can completely avoid cross-contamination between the first channel and the second channel. For example, the valve hole-free area of ​​the second valve structure 72 can be tightly fitted to the inner wall of the heating device 10 to form a seal. The inner wall of the heating device 10 can be the inner wall of the second transition cavity 61 described below.

[0093] In some embodiments of this application, see Figures 2-5 As shown, both the first valve structure 71 and the second valve structure 72 are constructed as a double-spherical structure, which is an integral structure. Specifically, the integral structure eliminates the need for separate positioning and calibration of the two spherical components; only one unit needs to be fixed during assembly, reducing assembly steps. The integral molding enhances the overall strength of the double-spherical structure, enabling it to withstand airflow impact and mechanical stress during valve switching, thus avoiding fatigue fracture at the connection points in a split structure.

[0094] In some embodiments of this application, see Figures 2-6 As shown, the heating device 10 also includes a driving device 4, which is connected to the first valve structure 71 and the second valve structure 72. The driving device 4 is used to drive the first valve structure 71 and the second valve structure 72 to move.

[0095] Specifically, the drive device 4 simultaneously drives the first valve structure 71 and the second valve structure 72 to move, and the consistency of the actions of the first valve structure 71 and the second valve structure 72 can be strictly controlled through mechanical structures (such as gear transmission and linkage transmission).

[0096] When the gas in the first transition chamber 51 needs to be heated, the drive device 4 drives the first valve structure 71 to move to the first state (the first valve hole 711 is connected to the first channel, and the second valve hole 712 is not connected to the second channel), and at the same time drives the second valve structure 72 to move synchronously to the third state (the third valve hole 721 is connected to the first channel, and the fourth valve hole 722 is not connected to the fourth channel), ensuring that the gas can flow through the first channel. The heating element 31 in the first channel heats the gas, and after the gas is heated, it further enters the gas processing device through the second transition chamber 61.

[0097] When the gas in the first transition chamber 51 does not require heating, the drive device 4 drives the first valve structure 71 to move to the second state (the first valve hole 711 is not connected to the first channel, and the second valve hole 712 is connected to the second channel), and at the same time drives the second valve structure 72 to move synchronously to the fourth state (the third valve hole 721 is not connected to the first channel, and the fourth valve hole 722 is connected to the fourth channel), ensuring that the gas can flow from the first transition chamber 51 to the second transition chamber 61 and even the gas processing device through the second channel.

[0098] In some embodiments of this application, see Figure 6 As shown, the drive device 4 includes a transmission mechanism 41 and a drive member 42. The drive member 42 and the transmission mechanism 41 are connected in a transmission manner. The transmission mechanism 41 is also connected in a transmission manner to the first valve structure 71 and the second valve structure 72. The drive member 42 drives the first valve structure 71 and the second valve structure 72 to rotate through the transmission mechanism 41. Specifically, the transmission mechanism 41 can strictly control the rotation angle of the first valve structure 71 and the second valve structure 72 through mechanical matching, ensuring that the rotation angles of the first valve structure 71 and the second valve structure 72 are completely consistent. Compared with the drive member 42 directly driving the first valve structure 71 and the second valve structure 72, the transmission mechanism 41 can eliminate the fluctuation of the output of the drive member 42 or the asynchronous rotation caused by the resistance difference between the first valve structure 71 and the second valve structure 72 (for example, the second valve structure 72 over-rotates due to the first valve structure 71 being stuck), ensuring the accuracy of switching between the individual conduction and individual non-conduction of the first channel and the second channel.

[0099] For example, after the drive unit 42 outputs power, the transmission mechanism 41 synchronously transmits torque to the first valve structure 71 and the second valve structure 72. When the first valve structure 71 rotates 90° to switch to the first state, the second valve structure 72 also rotates 90° synchronously to switch to the third state, ensuring that the first channel is open and the second channel is closed. After the first valve structure 71 and the second valve structure 72 rotate 90° in opposite directions, when the first valve structure 71 switches to the second state, the second valve structure 72 switches to the fourth state, ensuring that the first channel is closed and the second channel is open.

[0100] It should be understood that the rotation angle between the first valve structure 71 and the second valve structure 72 can also be 45°, 90°, 135°, 180°, etc.

[0101] In some embodiments, the transmission mechanism 41 may be a gear set mechanism, a linkage shaft mechanism, a synchronous belt mechanism, a multi-link mechanism, etc.

[0102] In some embodiments, the drive unit 42 may be a motor, a motor, a combination of a motor and a reducer, etc.

[0103] For example, see Figure 6As shown, the transmission mechanism 41 is a gear transmission mechanism and includes at least a first gear 411, a second gear 412 and a third gear 413. The first valve structure 71 is provided with a first shaft 713, and the second valve structure 72 is provided with a second shaft 723. The first gear 411 is fixedly connected to the first shaft 713, the second gear 412 is fixedly connected to the second shaft 723, and the third gear 413 is connected to the output shaft 423 of the drive member 42. The first gear 411 and the second gear 412 are both meshed with the third gear 413.

[0104] Specifically, the third gear 413 is connected to the output shaft 423 of the drive member 42. At the same time, the third gear 413 also meshes with the first gear 411 and the second gear 412, forming a transmission relationship where one driving gear drives two driven gears. By designing a reasonable gear ratio, the rotation angle can be precisely controlled. For example, the first gear 411 and the second gear 412 have the same number of teeth. When the drive member 42 drives the third gear 413 to rotate, the first gear 411 and the second gear 412 are driven by the third gear 413, and their speed and direction are completely synchronized. When the first valve structure 71 rotates to switch states, the second valve structure 72 also rotates synchronously, ensuring that the first channel and the second channel can switch smoothly to conduction states, avoiding abnormal pressure or air leakage in the first channel and the second channel due to asynchrony.

[0105] In some embodiments of this application, the first valve structure 71 and the first shaft 713 can be an integral part; or, the first valve structure 71 and the first shaft 713 can be separate parts, with the first valve structure 71 mounted on the first shaft 713, and the first valve structure 71 and the first shaft 713 can be connected by a key such as a flat key or a spline.

[0106] In some embodiments of this application, the second valve structure 72 and the second shaft 723 can be an integral part; or, the second valve structure 72 and the second shaft 723 can be separate parts, with the second valve structure 72 mounted on the second shaft 723, and the second valve structure 72 and the second shaft 723 connected by a key such as a flat key or spline.

[0107] In some embodiments of this application, the first gear 411 and the first shaft 713 can be connected by a key such as a flat key or a spline.

[0108] In some embodiments of this application, the second gear 412 and the second shaft 723 can be connected by a key such as a flat key or a spline.

[0109] In some embodiments of this application, the transmission mechanism 41 is a speed reduction transmission mechanism. The transmission mechanism 41 can transmit the power of the driving member 42 to the first valve structure 71 and the second valve structure 72 after speed reduction, thereby reducing the rotation speed of the first valve structure 71 and the second valve structure 72 and preventing the first valve structure 71 and the second valve structure 72 from being damaged due to high-speed rotation.

[0110] In some embodiments of this application, see Figures 7-10 As shown, the first valve structure 71 includes a first valve 714 and a second valve 715. The first valve 714 and the second valve 715 are separate structures. The first valve 714 is used to control the opening or closing of the first inlet 11, and the second valve 715 is used to control the opening or closing of the second inlet 21.

[0111] Specifically, the first valve 714 and the second valve 715 are linked. This linked design prevents the first and second valves from moving independently, ensuring that one of the first inlet 11 and the second inlet 21 is always open while the other is closed. This avoids blockages in the ventilation pipes caused by channel switching. For example, in the exhaust gas treatment system 100 of vehicle 1000, when the first valve structure 71 switches from the first state to the second state, the first inlet 11 closes and the second inlet 21 opens, ensuring that one of the two channels is open and gas can pass through normally.

[0112] In some embodiments of this application, see Figures 7-10 As shown, the second valve structure 72 includes a third valve 724 and a fourth valve 725. The third valve 724 and the fourth valve 725 are separate structures. The third valve 724 is used to control the opening or closing of the first outlet 12, and the fourth valve 725 is used to control the opening or closing of the second outlet 22.

[0113] Specifically, the third valve 724 and the fourth valve 725 are linked. This linked design ensures that the third valve 724 and the fourth valve 725 cannot move independently, guaranteeing that one of the first outlet 12 and the second outlet 22 is always open while the other is closed. This prevents blockage of the ventilation pipe due to channel switching. For example, in the exhaust gas treatment system 100 of vehicle 1000, when the second valve structure 72 switches from the third state to the fourth state, the first outlet 12 closes and the second outlet 22 opens, ensuring that one of the two channels is open and gas can pass through normally.

[0114] In some embodiments of this application, see Figures 7-10As shown, the heating device 10 also includes a driving device 4, which drives the first valve 714, the second valve 715, the third valve 724, and the fourth valve 725 to rotate. Specifically, when the first valve structure 71 switches from the second state to the first state, the driving device 4 drives the first valve 714 and the third valve 724 to open, and the second valve 715 and the fourth valve 725 to close, so that only the first channel is open, completely blocking the gas flow path of the second channel. Similarly, when the first valve structure 71 switches from the first state to the second state, the driving device 4 drives the second valve 715 and the fourth valve 725 to open, and the first valve 714 and the third valve 724 to close, so that only the second channel is open, completely blocking the gas flow path of the first channel. By reasonably designing the driving logic of the driving device 4, it can be ensured that the first channel and the second channel always maintain only one channel open.

[0115] In some embodiments of this application, see Figures 7-10 As shown, the first valve 714, the second valve 715, the third valve 724 and the fourth valve 725 are all plate-shaped structures.

[0116] In some embodiments, the driving device 4 includes a driving member 42 and a transmission mechanism 41. When the driving member 42 drives the transmission mechanism 41 to move, the transmission mechanism 41 drives the first valve 714, the second valve 715, the third valve 724 and the fourth valve 725 to rotate respectively.

[0117] The transmission mechanism 41 can be a gear set mechanism, a linkage shaft mechanism, a synchronous belt mechanism, a multi-link mechanism, etc.

[0118] In some optional embodiments, the drive device 4 includes four motors, with the first valve 714, the second valve 715, the third valve 724, and the fourth valve 725 each driven to rotate by one motor. The first valve 714, the second valve 715, the third valve 724, and the fourth valve 725 can be fixedly connected to the output shaft of the corresponding motor.

[0119] In some embodiments not shown in the figures, one of the first valve structure 71 and the second valve structure 72 is an integrated structure, while the other is a separate structure. Specifically, the integrated structure has higher integration, reduces the number of parts, and has lower cost, while the separate structure can more precisely control the opening and closing of the first and second channels, with higher adjustment accuracy. The structural features of the first valve structure 71 and the second valve structure 72 can be flexibly adjusted for different application scenarios, selecting the more suitable solution between the integrated and separate structures to achieve a balance between performance and cost, avoiding design redundancy. For example, the first valve structure 71 is a double-spherical structure, and the second valve structure 72 includes two separate valves; or, the second valve structure 72 is a double-spherical structure, and the first valve structure 71 includes two separate valves.

[0120] In some embodiments of this application, see Figure 1 , Figure 2 , Figure 7 , Figure 8 As shown, the heating device 10 also includes a first connector structure 5. One end of the first housing 1 and one end of the second housing 2 are both connected to the first connector structure 5. The first connector structure 5 has a first transition cavity 51. The first connector structure 5 is provided with a total inlet 52. The first inlet 11 and the second inlet 21 are both connected to the total inlet 52 through the first transition cavity 51. The first valve structure 71 is disposed in the first transition cavity 51.

[0121] Specifically, the first connector structure 5 connects the main inlet 52 to the first inlet 11 and the second inlet 21 simultaneously through the first transition cavity 51, so that the entire heating device 10 only needs to be connected to the external air source through the main inlet 52. Compared with connecting to the external air source separately through the first housing 1 and the second housing 2, the number of connection points of the external pipeline is reduced (from two connection points to one connection point), avoiding pipeline clutter and reducing the risk of sealing failure at each connection point. At the same time, it also reduces the space occupied by the heating device 10 and the external structure during installation (such as the exhaust gas treatment system 100, small industrial equipment system, etc.).

[0122] In some embodiments of this application, see Figure 1 , Figure 2 , Figure 7 , Figure 8 As shown, the heating device 10 also includes a second connector structure 6. The other end of the first housing 1 and the other end of the second housing 2 are both connected to the second connector structure 6. The second connector structure 6 has a second transition cavity 61. The second connector structure 6 is provided with a total outlet 62. The first outlet 12 and the second outlet 22 are both connected to the total outlet 62 through the second transition cavity 61. The total outlet 62 is suitable for connection to a gas processing device. The second valve structure 72 is disposed in the second transition cavity 61.

[0123] Specifically, the second connector structure 6 connects the total outlet 62 to the first outlet 12 and the second outlet 22 simultaneously through the second transition cavity 61, so that the entire heating device 10 only needs to be connected to the external gas treatment device through the total outlet 62. Compared with connecting to the external gas treatment device separately through the first housing 1 and the second housing 2, this reduces the number of connection points of the external pipeline (from two connection points to one connection point), avoids pipeline clutter, reduces the risk of sealing failure at each connection point, and also reduces the space occupied by the heating device 10 and the external structure during installation (such as the exhaust gas treatment system 100, small industrial equipment system, etc.).

[0124] In some embodiments of this application, see Figure 1 , Figure 2 , Figure 7 , Figure 8 As shown, the heating device 10 includes both a first connector structure 5 and a second connector structure 6.

[0125] In some embodiments not shown in the figures, the heating device 10 includes only the first connector structure 5.

[0126] In some other embodiments not shown in the figures, the heating device 10 includes only the second connector structure 6.

[0127] In some embodiments, the first valve structure 71 controls the opening and closing of the first transition chamber 51 and the first channel, and the first transition chamber 51 and the second channel. The second valve structure 72 works synchronously with the first valve structure 71 to form a double seal at the inlet and outlet of the corresponding channel, which can effectively prevent gas from flowing into the second transition chamber 61, thereby allowing the gas to flow normally into the gas processing device. For example, when the first inlet 11 is blocked, the first outlet 12 is also blocked to prevent gas from flowing into the first channel from the second transition chamber 61. At this time, the second inlet 21 and the second outlet 22 are both opened. When the first inlet 11 is opened, the first outlet 12 is also opened. At this time, the second inlet 21 and the second outlet 22 are both blocked to prevent gas from flowing into the second channel from the second transition chamber 61.

[0128] In some embodiments of this application, see Figure 1 , Figure 2 , Figure 7 , Figure 8 As shown, the first connector structure 5 includes a first half 53 and a second half 54, which are interlocked to enclose the main inlet 52 and the first transition cavity 51. Specifically, the first connector structure 5 adopts a split design, dividing the complex cavity into two relatively simple structures, the first half 53 and the second half 54. Each half can be machined separately (e.g., by casting to form a half-cavity structure, or by milling the flow channel groove), and then assembled into a complete cavity by interlocking. This avoids problems such as tool interference and chip removal difficulties during overall machining, reduces production difficulty, improves production efficiency, and reduces the scrap rate.

[0129] In some embodiments of this application, see Figure 1 , Figure 2 , Figure 7 , Figure 8As shown, the second connector structure 6 includes a third half 63 and a fourth half 64, which interlock to enclose the main outlet 62 and the second transition cavity 61. Specifically, the second connector structure 6 adopts a split design, dividing the complex cavity into two relatively simple structures, the third half 63 and the fourth half 64. Each half can be machined individually (e.g., by casting to form a half-cavity structure, or by milling the flow channel groove), and then assembled into a complete cavity by interlocking. This avoids problems such as tool interference and chip removal difficulties during overall machining, reduces production difficulty, improves production efficiency, and reduces the scrap rate.

[0130] In some embodiments, the heating element may be a heating wire, a heating plate, or a heating mesh. For example... Figure 2 As shown, the heating element is a heating wire.

[0131] In some embodiments of this application, the first transition cavity 51 is at least partially constructed as a first double spherical cavity, the first valve structure 71 is disposed within the first double spherical cavity, the second transition cavity 61 is at least partially constructed as a second double spherical cavity, and the second valve structure 72 is disposed within the second double spherical cavity.

[0132] exist Figures 1-3 , Figure 5 In the example shown, the first transition cavity 51 is at least partially constructed as a first double-spherical cavity, and the second transition cavity 61 is at least partially constructed as a second double-spherical cavity. Both the first valve structure 71 and the second valve structure 72 are constructed as double-spherical structures. These double-spherical structures are suitable for spherical mating with the corresponding double-spherical cavities, enabling high-precision surface contact sealing. They provide a larger contact area and a tighter fit, maintaining stable sealing under high-temperature and vibration conditions (e.g., the exhaust gas treatment system 100 of a vehicle 1000 engine). The double-spherical cavities provide precise rotational guidance for the double-spherical structures. The spherical mating restricts the radial offset of the first valve structure 71 and the second valve structure 72 (allowing only rotation about the axis), ensuring that the first valve hole 711, the second valve hole 712, the third valve hole 721, and the fourth valve hole 722 accurately connect to their corresponding channels during rotation.

[0133] exist Figures 7-10In the example shown, the first transition cavity 51 is at least partially constructed as a first double-spherical cavity, and the second transition cavity 61 is at least partially constructed as a second double-spherical cavity. The first valve structure 71 includes a first valve 714 and a second valve 715, which are separate structures and are disposed within the first double-spherical cavity. The second valve structure 72 includes a third valve 724 and a fourth valve 725, which are also separate structures and are disposed within the second double-spherical cavity. The first valve 714, the second valve 715, the third valve 724, and the fourth valve 725 are all plate-like structures. The first and second double-spherical cavities provide space for the rotation of the plate-like structures. When the outer edge of the valve contacts and engages with the spherical surface of the corresponding double-spherical cavity, the valve cuts off the airflow path. When the outer edge of the valve separates from the spherical surface of the corresponding double-spherical cavity, airflow can pass through the valve.

[0134] In some embodiments of this application, see Figures 2-5 , Figures 8-10 As shown, the heating element 31 includes a heating wire, and the heating device 10 also includes a mounting base 32, which is fixed to the first housing 1. The heating wire is wound around the mounting base 32. Specifically, the heating wire wound around the mounting base 32 can form a dense and uniform heating area. The mounting base 32 provides a regular winding carrier for the heating wire, allowing the heating wire to be distributed at a preset interval (such as spiral winding), avoiding local over-dense (leading to overheating) or over-sparse (leading to insufficient heating), and allowing the gas flowing through the first channel to fully contact the heating wire, resulting in more uniform heat exchange.

[0135] In some embodiments of this application, see Figures 2-5 , Figures 8-10 As shown, the mounting base 32 includes a winding frame 321 and a fixing part 322. The winding frame 321 is an insulating frame, and the heating wire is wound on the winding frame 321. The fixing part 322 is connected to the winding frame 321 and fixed to the first housing 1. Specifically, the winding frame 321, as an insulating frame, is in direct contact with the heating wire but does not conduct electricity. It can fundamentally block the conductive path between the heating wire and the first housing 1 (made of metal), avoiding contact between the heating wire and the first housing 1 and preventing safety hazards caused by the first housing 1 becoming electrified.

[0136] In some embodiments, the winding frame may be made of ceramic, mica, or other high-temperature resistant insulating materials.

[0137] In some embodiments, the fixing part 322 and the first housing 1 can be fixed by welding or by interference fit.

[0138] In some embodiments, both the fixing part 322 and the first housing 1 are high-temperature resistant metal parts, such as high-temperature resistant stainless steel (which may be 310s stainless steel), so that the fixing part 322 and the first housing 1 have high strength and are not easily deformed or damaged.

[0139] In some embodiments of this application, see Figures 1-5 , Figures 7-10 As shown, the heating device 10 also includes a first electrode post 331 and a second electrode post 332. The first housing 1 has a first electrode post hole 13 and a second electrode post hole 14. The first electrode post 331 passes through the first electrode post hole 13 and is connected to one end of the heating element 31. The first electrode post 331 is also adapted to be connected to the positive terminal of the power supply element. The second electrode post 332 passes through the second electrode post hole 14 and is connected to the other end of the heating element 31. The second electrode post 332 is also adapted to be connected to the negative terminal of the power supply element.

[0140] Specifically, the first electrode post 331 and the second electrode post 332 are respectively connected to the two ends of the heating element 31, and are fixed to the first housing 1 through the first electrode post hole 13 and the second electrode post hole 14, forming a complete closed loop of "positive terminal of power supply component → first electrode post 331 → heating element 31 → second electrode post 332 → negative terminal of power supply component". When the power supply component supplies power, the heating element 31 heats up to heat the gas in the first channel. The first electrode post 331 and the second electrode post 332 are made of materials with excellent conductivity (such as copper alloy, brass, etc.), which can reduce contact resistance, reduce energy loss during current transmission, and avoid local heating and reduced heating efficiency caused by poor contact.

[0141] In some embodiments of this application, see Figures 2-5 , Figures 8-10 As shown, the heating device 10 also includes a first fixing sleeve 341 and a second fixing sleeve 342. The first fixing sleeve 341 is fixedly connected to the first housing 1. The first fixing sleeve 341 has a first mounting hole that communicates with the first electrode post hole 13. The first electrode post 331 passes through the first mounting hole. A first insulating sleeve 351 is provided between the outer peripheral surface of the first electrode post 331 and the hole wall of the first mounting hole. The second fixing sleeve 342 is fixedly connected to the first housing 1. The second fixing sleeve 342 has a second mounting hole that communicates with the second electrode post hole 14. The second electrode post 332 passes through the second mounting hole. A second insulating sleeve 352 is provided between the outer peripheral surface of the second electrode post 332 and the hole wall of the second mounting hole.

[0142] Specifically, the first insulating sleeve 351 tightly fills the gap between the outer peripheral surface of the first electrode post 331 and the wall of the first mounting hole, using the high resistance characteristics of the insulating material to block the conductive path between the first electrode post 331 and the first fixing sleeve 341 (usually made of metal). The second insulating sleeve 352 tightly fills the gap between the outer peripheral surface of the second electrode post 332 and the wall of the second mounting hole, using the high resistance characteristics of the insulating material to block the conductive path between the second electrode post 332 and the second fixing sleeve 342 (usually made of metal).

[0143] The first fixing sleeve 341 can also fix the first electrode post 331 to prevent the first electrode post 331 from tilting relative to the first housing 1. The second fixing sleeve 342 can also fix the second electrode post 332 to prevent the second electrode post 332 from tilting relative to the first housing 1.

[0144] In some embodiments, the first insulating sleeve 351 and the second insulating sleeve 352 may be high-temperature resistant ceramics, mica or other high-temperature resistant insulating materials.

[0145] See Figure 11 As shown, the exhaust gas treatment system 100 according to another embodiment of this application includes the heating device 10 described above.

[0146] According to another embodiment of the exhaust gas treatment system 100 of this application, the heating device 10 adopts a split structure through the first housing 1 and the second housing 2, realizing the physical separation of the first channel and the second channel. Since there is only a single channel in each of the first housing 1 and the second housing 2, the structure is simple and easy to manufacture. It can be manufactured with only simple processing and assembly, which significantly improves the production efficiency of the heating device 10, reduces the production cost, and facilitates mass production.

[0147] In some embodiments of this application, see Figure 11 As shown, the exhaust gas treatment system 100 also includes an engine and a gas treatment device. The heating device 10 has a total inlet 52 and a total outlet 62. The exhaust end of the engine is connected to the total inlet 52, and the total outlet 62 is connected to the gas treatment device.

[0148] Specifically, during the engine cold start phase (such as when a car is first started), the exhaust gas temperature is usually low. Gas treatment devices (such as three-way catalytic converters and DPF particulate filters) require sufficient gas temperature to activate their purification functions (catalytic ignition and particulate oxidation). After receiving the low-temperature exhaust gas through the first channel, the heating device 10 can quickly activate the heating element 31 (such as a heating wire) to heat the exhaust gas to the target temperature. The heated exhaust gas is then sent to the gas treatment device through the main outlet 62, significantly reducing the direct emission of untreated low-temperature exhaust gas and improving the purification efficiency of the exhaust gas treatment system 100.

[0149] In some embodiments of this application, see Figure 11 As shown, the gas treatment device has an air inlet, and a total outlet 62 is adapted and connected to the air inlet. Specifically, the total outlet 62 is adapted and connected to the air inlet, meaning the diameter of the total outlet 62 is the same as the diameter of the air inlet. This ensures that when the exhaust gas flows from the total outlet 62 of the heating device 10 into the air inlet of the gas treatment device, the flow cross-sectional area remains constant, avoiding airflow expansion, turbulence, or eddies caused by diameter differences. Furthermore, since the diameter of the total outlet 62 is the same as the diameter of the air inlet, it can also be directly connected to existing gas treatment devices without requiring modifications to the gas treatment device structure.

[0150] See Figure 12 , Figure 13 As shown, a vehicle 1000 according to another aspect of this application includes the heating device 10 described above, or the exhaust gas treatment system 100 described above.

[0151] According to another aspect of the present application, the vehicle 1000 has a heating device 10 with a split structure of a first housing 1 and a second housing 2, which realizes the physical separation of the first channel and the second channel. Since there is only a single channel in each of the first housing 1 and the second housing 2, the structure is simple and easy to manufacture. It can be manufactured with only simple processing and assembly, which significantly improves the production efficiency of the heating device 10, reduces the production cost, and facilitates mass production.

[0152] The following is an example of a specific embodiment.

[0153] like Figures 1-5 As shown, the heating device 10 has a split dual-channel structure. The heating device 10 is connected to the exhaust end of the engine (e.g., tailpipe) through the first transition chamber 51 composed of the first half 53 and the second half 54 via the total inlet 52. The first valve structure 71 (e.g., double spherical rotor) with the first shaft 713 and the second valve structure 72 (e.g., double spherical rotor) with the second shaft 723 are connected to the drive component 42 (e.g., motor) through the first gear 411, the second gear 412, and the third gear 413. The second transition chamber 61 composed of the third half 63 and the fourth half 64 is connected to the gas treatment device (e.g., three-way catalytic converter) through the total outlet 62.

[0154] When the vehicle starts cold, the cooler exhaust gas enters the heating device 10 through the main inlet 52. At this time, the drive component 42 controls the first valve structure 71 and the second valve structure 72 to rotate, causing the first valve structure 71 to rotate to the first state and the second valve structure 72 to rotate to the third state (e.g., ...). Figure 3When the power supply to the power unit is turned on, the heating element 31 (e.g., a heating wire) starts working, generating a large amount of heat in a short time. This heat is used to heat the exhaust gas through convection and radiation. The heated exhaust gas then flows through the first channel into the gas treatment device, where harmful substances in the exhaust gas are converted. After the vehicle 1000 has been running for a period of time, the temperature of the generated exhaust gas rises to directly reach the ignition temperature of the catalyst in the gas treatment device. At this point, the power supply to the power unit is turned off, the heating element 31 stops working, and the drive element 42 controls the rotation of the first valve structure 71 and the second valve structure 72. The first valve structure 71 rotates to the second state, and the second valve structure 72 rotates to the fourth state (e.g., ...). Figure 5 As shown, the high-temperature exhaust gas flows into the gas treatment device through the second channel. Since the first channel is closed, the first valve structure 71 and the second valve structure 72 can prevent the high-temperature exhaust gas from contacting the heating element 31, preventing the heating element 31 from being corroded by high temperature, thereby extending the service life of the heating element 31.

[0155] like Figure 3 As shown, the positive terminal of the power supply component - the first electrode post 331 - the heating element 31 - the second electrode post 332 - the negative terminal of the power supply component constitute a complete power supply circuit. The first insulating sleeve 351 (e.g., an electrode insulating component) insulates the first electrode post 331, and the second insulating sleeve 352 (e.g., an electrode insulating component) insulates the second electrode post 332. The first fixing sleeve 341 (e.g., a steel sleeve) and the second fixing sleeve 342 (e.g., a steel sleeve) are welded to the first housing 1 to fix the first electrode post 331 and the second electrode post 332. The winding frame 321 (e.g., a ceramic support) is clamped onto the fixing parts 322 (e.g., fixing plates) on both sides of the first channel, and the fixing parts 322 are welded and fixed to the channel wall of the first channel.

[0156] like Figure 2 As shown, both the first valve structure 71 and the second valve structure 72 are formed by two spheres with openings (i.e., the first valve hole 711, the second valve hole 712, the third valve hole 721, and the fourth valve hole 722). The first valve hole 711 and the second valve hole 712 are perpendicular to each other, and the third valve hole 721 and the fourth valve hole 722 are perpendicular to each other. When the opening is parallel to the channel, the channel is open; when the opening is perpendicular to the channel, the channel is closed. The first shaft 713 and the second shaft 723 are connected to the driving member 42, which drives the first valve structure 71 and the second valve structure 72 to rotate. The open / closed state changes once every 90° rotation. The first transition cavity 51 and the second transition cavity 61 have spherical cavities that restrict the rotational freedom of the first valve structure 71 and the second valve structure 72, so that the first valve structure 71 and the second valve structure 72 can only rotate in a fixed direction.

[0157] like Figures 7 to 10As shown, the first valve structure 71 has a first valve 714 and a second valve 715, and the second valve structure 72 has a third valve 724 and a fourth valve 725. The valves can be discs. When the first valve 714 and the third valve 724 are parallel to the first channel, and the second valve 715 and the fourth valve 725 are perpendicular to the second channel, the first channel is open, as shown. Figure 9 As shown. When the first valve 714 and the third valve 724 are perpendicular to the first channel, and the second valve 715 and the fourth valve 725 are parallel to the second channel, the second channel is open, as shown. Figure 10 As shown.

[0158] The heating device 10 of this application adopts a separate design of the first channel and the second channel, which is simple in circuit design and low in manufacturing cost.

[0159] The heating device 10 of this application uses a first valve structure 71 and a second valve structure 72 to control the switching of the first channel and the second channel, which can effectively prevent the heating element 31 from being corroded by the high temperature of the exhaust gas when it is not working, and extend the service life of the heating element 31.

[0160] In the description of this application, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0161] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0162] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0163] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A heating device (10), characterized in that, include: A first housing (1) having a first inlet (11) and a first outlet (12) forming a first channel between the first inlet (11) and the first outlet (12), the first outlet (12) being adapted to be connected to a gas processing device; A heating element (31) is used to heat the gas flowing into the first channel; A second housing (2) having a second inlet (21) and a second outlet (22) forming a second channel between the second inlet (21) and the second outlet (22), the second outlet (22) being adapted to be connected to a gas processing device; The first housing (1) and the second housing (2) are separate structures, and the gas can flow into the gas processing device through at least one of the first channel and the second channel.

2. The heating device (10) according to claim 1, characterized in that, The heating device (10) further includes a first valve structure (71), which has at least a first state and a second state. When the first valve structure (71) is in the first state, the first inlet (11) is opened and the second inlet (21) is closed, and the first channel can be connected to the gas outside the first channel through the first inlet (11). When the first valve structure (71) is in the second state, the first inlet (11) is closed and the second inlet (21) is opened, and the second channel can be connected to the gas outside the second channel through the second inlet (21).

3. The heating device (10) according to claim 2, characterized in that, The first valve structure (71) is rotatably disposed at one end of the first channel facing the first inlet (11) and at one end of the second channel facing the second inlet (21).

4. The heating device (10) according to claim 2, characterized in that, The heating device (10) further includes a second valve structure (72), which has at least a third state and a fourth state. When the second valve structure (72) is in the third state, the first outlet (12) is opened and the second outlet (22) is closed, and the first channel can be connected to the gas outside the first channel through the first outlet (12). When the second valve structure (72) is in the fourth state, the first outlet (12) is closed and the second outlet (22) is opened, and the second channel can be connected to the gas outside the second channel through the second outlet (22).

5. The heating device (10) according to claim 4, characterized in that, The second valve structure (72) is rotatably disposed at one end of the first channel facing the first outlet (12) and at one end of the second channel facing the second outlet (22).

6. The heating device (10) according to claim 4, characterized in that, The first valve structure (71) and the second valve structure (72) are configured to move synchronously, and when the first valve structure (71) is in the first state, the second valve structure (72) is in the third state; when the first valve structure (71) is in the second state, the second valve structure (72) is in the fourth state.

7. The heating device (10) according to any one of claims 4-6, characterized in that, The first valve structure (71) has a first valve hole (711) and a second valve hole (712). When the first valve structure (71) rotates, the first valve hole (711) selectively connects to the first inlet (11), and the second valve hole (712) selectively connects to the second inlet (21).

8. The heating device (10) according to claim 7, characterized in that, The second valve structure (72) has a third valve hole (721) and a fourth valve hole (722). When the second valve structure (72) rotates, the third valve hole (721) selectively connects to the first outlet (12), and the fourth valve hole (722) selectively connects to the second outlet (22).

9. The heating device (10) according to claim 8, characterized in that, Both the first valve structure (71) and the second valve structure (72) are constructed as double spherical structures, and the double spherical structures are integral structures.

10. The heating device (10) according to claim 8, characterized in that, The heating device (10) further includes a driving device (4), which is connected to the first valve structure (71) and is also connected to the second valve structure (72). The driving device (4) is used to drive the first valve structure (71) and the second valve structure (72) to move.

11. The heating device (10) according to claim 10, characterized in that, The driving device (4) includes a transmission mechanism (41) and a driving member (42). The driving member (42) and the transmission mechanism (41) are connected in a transmission manner. The transmission mechanism (41) is connected in a transmission manner to the first valve structure (71). The transmission mechanism (41) is also connected in a transmission manner to the second valve structure (72). The driving member (42) drives the first valve structure (71) and the second valve structure (72) to rotate through the transmission mechanism (41).

12. The heating device (10) according to claim 11, characterized in that, The transmission mechanism (41) is a gear transmission mechanism and includes at least a first gear (411), a second gear (412) and a third gear (413). The first valve structure (71) is provided with a first shaft (713), and the second valve structure (72) is provided with a second shaft (723). The first gear (411) is fixedly connected to the first shaft (713), the second gear (412) is fixedly connected to the second shaft (723), and the third gear (413) is connected to the output shaft (423) of the drive member (42). The first gear (411) and the second gear (412) are both meshed with the third gear (413).

13. The heating device (10) according to claim 4 or 6, characterized in that, The first valve structure (71) includes a first valve (714) and a second valve (715). The first valve (714) and the second valve (715) are separate structures. The first valve (714) is used to control the opening or closing of the first inlet (11), and the second valve (715) is used to control the opening or closing of the second inlet (21).

14. The heating device (10) according to claim 13, characterized in that, The second valve structure (72) includes a third valve (724) and a fourth valve (725). The third valve (724) and the fourth valve (725) are separate structures. The third valve (724) is used to control the opening or closing of the first outlet (12), and the fourth valve (725) is used to control the opening or closing of the second outlet (22).

15. The heating device (10) according to claim 14, characterized in that, The heating device (10) further includes a driving device (4) for driving the first valve (714), the second valve (715), the third valve (724) and the fourth valve (725) to rotate.

16. The heating device (10) according to claim 14, characterized in that, The first valve (714), the second valve (715), the third valve (724) and the fourth valve (725) are all plate-shaped structures.

17. The heating device (10) according to any one of claims 4-6, characterized in that, The heating device (10) further includes: A first connector structure (5) is provided, wherein one end of the first housing (1) and one end of the second housing (2) are connected to the first connector structure (5), the first connector structure (5) has a first transition cavity (51), and a main inlet (52) is provided on the first connector structure (5). The first inlet (11) and the second inlet (21) are both connected to the main inlet (52) through the first transition cavity (51), and the first valve structure (71) is disposed in the first transition cavity (51); and / or, The second connector structure (6) is connected to the other end of the first housing (1) and the other end of the second housing (2). The second connector structure (6) has a second transition cavity (61) and a total outlet (62). The first outlet (12) and the second outlet (22) are connected to the total outlet (62) through the second transition cavity (61). The total outlet (62) is suitable for connection to a gas processing device. The second valve structure (72) is disposed in the second transition cavity (61).

18. The heating device (10) according to claim 17, characterized in that, The first connector structure (5) includes a first half (53) and a second half (54), which are engaged to enclose the main inlet (52) and the first transition cavity (51).

19. The heating device (10) according to claim 17, characterized in that, The second connector structure (6) includes a third half (63) and a fourth half (64), which are engaged to enclose the main outlet (62) and the second transition cavity (61).

20. The heating device (10) according to claim 17, characterized in that, The first transition cavity (51) is at least partially constructed as a first double spherical cavity, the first valve structure (71) is disposed in the first double spherical cavity, the second transition cavity (61) is at least partially constructed as a second double spherical cavity, and the second valve structure (72) is disposed in the second double spherical cavity.

21. The heating device (10) according to claim 1, characterized in that, The heating element (31) includes a heating wire, and the heating device (10) also includes a mounting base (32). The mounting base (32) is fixed to the first housing (1), and the heating wire is wound around the mounting base (32).

22. The heating device (10) according to claim 21, characterized in that, The mounting base (32) includes a winding frame (321) and a fixing part (322). The winding frame (321) is an insulating frame. The heating wire is wound on the winding frame (321). The fixing part (322) is connected to the winding frame (321) and fixed to the first housing (1).

23. The heating device (10) according to any one of claims 1, 21 or 22, characterized in that, The heating device (10) further includes a first electrode post (331) and a second electrode post (332). The first housing (1) has a first electrode post hole (13) and a second electrode post hole (14). The first electrode post (331) passes through the first electrode post hole (13) and is connected to one end of the heating element (31). The first electrode post (331) is also adapted to be connected to the positive terminal of the power supply element. The second electrode post (332) passes through the second electrode post hole (14) and is connected to the other end of the heating element (31). The second electrode post (332) is also adapted to be connected to the negative terminal of the power supply element.

24. The heating device (10) according to claim 23, characterized in that, The heating device (10) further includes: The first fixing sleeve (341) is fixedly connected to the first housing (1). The first fixing sleeve (341) has a first mounting hole, which communicates with the first electrode post hole (13). The first electrode post (331) passes through the first mounting hole. A first insulating sleeve (351) is provided between the outer peripheral surface of the first electrode post (331) and the hole wall of the first mounting hole. The second fixing sleeve (342) is fixedly connected to the first housing (1). The second fixing sleeve (342) has a second mounting hole, which communicates with the second electrode post hole (14). The second electrode post (332) passes through the second mounting hole. A second insulating sleeve (352) is provided between the outer peripheral surface of the second electrode post (332) and the hole wall of the second mounting hole.

25. An exhaust gas treatment system (100), characterized in that, include: The heating device (10) according to any one of claims 1-24.

26. The exhaust gas treatment system (100) according to claim 25, characterized in that, The exhaust gas treatment system (100) also includes an engine and a gas treatment device. The heating device (10) has a total inlet (52) and a total outlet (62). The exhaust end of the engine is connected to the total inlet (52), and the total outlet (62) is connected to the gas treatment device.

27. The exhaust gas treatment system (100) according to claim 26, characterized in that, The gas processing device has an air inlet, and the total outlet (62) is adapted to be connected to the air inlet.

28. A vehicle (1000), characterized in that, include: The heating device (10) according to any one of claims 1-24, or the exhaust gas treatment system (100) according to any one of claims 25-27.

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