Distributed power air inlet system and automobile

Abstract

The utility model discloses a distributed power air inlet system and an automobile, and relates to the technical field of automobiles, the distributed power air inlet system comprises an air filter and a plurality of range extenders; the air filter is provided with an air outlet, each range extender is respectively communicated with the air outlet, and a one-way valve is arranged between each range extender and the air outlet so as to control a passage from the air filter to the range extender. According to the technical scheme, the structure of the distributed power air inlet system can be simplified.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile, especially relates to a distributed power intake system and automobile. BACKGROUND

[0002] The current new energy vehicle adopts the technology of distributed power system, the power source adopts the range extender, and the air intake system meets the use requirement of the range extender. The air intake system includes an air inlet pipeline and an air filter, and provides the air required for combustion during the operation of the range extender.

[0003] The air intake system structure of the distributed power system in the current market is complex and has great technical difficulty. UTILITY MODEL CONTENT

[0004] The utility model discloses a distributed power intake system, which aims to simplify the structure of the distributed power intake system.

[0005] To achieve the above-mentioned purpose, the utility model provides a distributed power intake system, which comprises:

[0006] A plurality of range extenders; and

[0007] An air filter is provided with an air outlet, each range extender is communicated with the air outlet, and a one-way valve is arranged between each range extender and the air outlet to control the passage of the air filter to the range extender.

[0008] In an embodiment, the distributed power intake system further comprises an expander, the expander is provided with an expansion cavity corresponding to each range extender, and the air outlet is communicated with a plurality of expansion cavities, and each range extender is communicated with an expansion cavity.

[0009] In an embodiment, the expander is provided with an air inlet joint, the air inlet joint is provided with an air inlet channel corresponding to the expansion cavity, and a plurality of air inlet channels are communicated with the air outlet.

[0010] In an embodiment, the one-way valve is arranged in the air inlet channel.

[0011] In an embodiment, the one-way valve is arranged on one side of the air inlet channel close to the expansion cavity.

[0012] In an embodiment, the air inlet joint is sealingly connected with the air outlet.

[0013] In an embodiment, the air inlet joint is sealingly connected with the air outlet through a clamp.

[0014] In an embodiment, each of the expansion cavities is provided with an air outlet communication port for communicating with the corresponding range extender, and the air outlet communication ports are arranged away from the air inlet joint.

[0015] In an embodiment, a pressure booster is arranged on the pipeline through which the air outlet communicates with the corresponding range extender.

[0016] The utility model also provides a kind of automobile, including the distributed power air intake system of above.

[0017] The technical scheme of the utility model is provided with a one-way valve between each range extender and air outlet, so that when a certain range extender is running, the range extender being operated will generate a certain suction, which will open the corresponding one-way valve, so that the air passing through the air cleaner enters the range extender being operated, thereby providing the range extender with the air required for combustion during operation. If a certain range extender stops running, i.e. the range extender does not generate suction, therefore, it will not generate suction on the corresponding one-way valve, at this time, the one-way valve is in a closed state. It can be understood that the one-way valve of the present scheme is in a normally closed state, and only when the range extender is running and suction is generated on the one-way valve, the one-way valve will be opened. Moreover, the opening degree of the one-way valve is also related to the suction of the range extender, if the suction of the range extender is large, the opening degree of the one-way valve will also be large, if the suction of the range extender is small, the opening degree of the one-way valve will also be small, therefore, the one-way valve can adjust the opening degree of the valve according to the working condition of the range extender, thereby realizing the independent air intake function of the distributed range extender without complex electronic flow divider development and calibration work, simplifying the structure and control strategy of the distributed power air intake system, greatly reducing the system development difficulty and cycle, and relatively improving the system reliability. Secondly, since the present scheme only needs to arrange a one-way valve on the communication channel between each range extender and air outlet, the remaining parts can use the parts of traditional single-power vehicles, therefore, the universal rate of parts of distributed power vehicles and traditional single-power vehicles can also be improved, and the management cost of parts is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings from the structures shown in these drawings without creating labor.

[0019] Figure 1 The structure diagram of the distributed power air intake system provided by the utility model is shown.

[0020] Figure 2 isFigure 1 A schematic diagram of the expander structure of the provided distributed power intake system.

[0021] Explanation of icon numbers:

[0022] 10. Distributed power intake system; 100. Range extender; 200. Air filter; 300. One-way valve; 400. Expander; 410. Expansion chamber; 411. Exhaust port; 420. Intake connector; 421. Intake passage;

[0023] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] 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 scope of protection of the present utility model.

[0025] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0026] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0027] Currently, new energy vehicles adopt distributed powertrain technology, with range extenders as their power source and intake systems meeting the requirements of the range extenders. The intake system includes intake pipes and an air filter, providing the range extender with the air needed for combustion during operation.

[0028] The intake system of the distributed power system on the market is complex in structure and difficult in technology.

[0029] In order to solve the above problems, the utility model provides a kind of distributed power intake system 10.

[0030] Please refer to Figure 1 And Figure 2 In an embodiment of the utility model, the distributed power intake system 10 includes air cleaner 200 and multiple range extenders 100;The air cleaner 200 is equipped with air outlet, every range extender 100 is communicated with air outlet respectively, and one-way valve 300 is equipped between every range extender and air outlet to control the passage of air cleaner 200 to range extender.

[0031] The technical scheme of the utility model is equipped with one-way valve 300 between every range extender and air outlet, so when a certain range extender 100 is running, the range extender being running will generate a certain suction, and the suction will open the corresponding one-way valve 300, so that the air passing through air cleaner 200 passes through the one-way valve 300 and then enters the range extender 100 being running, thereby providing the range extender 100 with the air required for combustion when working.If a certain range extender 100 stops running, that is, the range extender 100 does not generate suction, so it will not generate suction on the corresponding one-way valve 300, at this time, one-way valve 300 is in closed state.It can be understood that the one-way valve 300 of the present scheme is in normally closed state, and only when the range extender runs and generates suction on the one-way valve 300, the one-way valve 300 will open.Moreover, the opening degree of one-way valve 300 is also related to the suction of range extender 100, if the suction of range extender 100 is large, the opening degree of one-way valve 300 will also be large, if the suction of range extender 100 is small, the opening degree of one-way valve 300 will also be small, so one-way valve 300 can adjust the opening degree of valve according to the working condition of range extender;So the distributed range extender 100 independent air intake function can be realized without complex electronic flow divider development and calibration work, the structure and control strategy of distributed power intake system 10 are simplified, the system development difficulty and cycle are greatly reduced, and the system reliability is relatively improved, and the production cost of distributed power intake system 10 is also reduced.

[0032] Secondly, since the present scheme only needs to set one-way valve 300 on the communication channel between every range extender 100 and air outlet, the remaining parts can use the parts of traditional single power vehicle, so the universal rate of parts of distributed power vehicle and traditional single power vehicle can be improved, and the management cost of parts is reduced.

[0033] In the embodiment, the range expander 100 is provided with two, i.e. a first range expander and a second range expander, a first one-way valve is provided between the first range expander and the air outlet, a second one-way valve is provided between the second range expander and the air outlet, the first one-way valve and the second one-way valve are in a default closed state, and the specific working principle is as follows:

[0034] When the first range expander is started alone, the first one-way valve is opened, the second one-way valve is closed, the first range expander starts to inhale through the air outlet, and the air filter 200 supplies air to the first range expander alone.

[0035] When the second range expander is started alone, the first one-way valve is closed, the second one-way valve is opened, the second range expander starts to inhale through the air outlet, and the air filter 200 supplies air to the second range expander alone.

[0036] When the first range expander and the second range expander are started at the same time, the first one-way valve and the second one-way valve are opened at the same time, and the air filter 200 supplies air to the first range expander and the second range expander at the same time.

[0037] In other embodiments, the range expander 100 can be provided with three, four, etc., and the specific number of the range expander 100 is not limited here. One one-way valve 300 is provided for each range expander 100, so as to control the air flow path of the corresponding range expander 100.

[0038] Optionally, in the embodiment, the distributed power intake system 10 further comprises an expander 400, the expander 400 is provided with an expansion cavity 410 corresponding to each range expander, the air outlet is in communication with a plurality of expansion cavities 410 respectively, and each range expander 100 is in communication with an expansion cavity 410. It can be understood that the airflow after passing through the air filter 200 usually contains high-frequency pulsation and turbulence (especially when the air filter 200 has large resistance). The present scheme sets an expansion cavity 410 between each range expander 100 and the air outlet. The flow channel of the expansion cavity 410 can force the airflow to decelerate and reorganize, convert the turbulence into more stable laminar flow, thereby reducing the high-frequency aerodynamic noise generated when the turbulent airflow passes through the narrow pipeline, eliminating the intake surge under different working conditions, and improving the intake efficiency. Moreover, the smooth flow channel and deceleration effect of the expansion cavity 410 can also disperse sound wave energy, reduce the vibration excitation of the shell caused by airflow pulsation, reduce the intake flow rate of each range expander 100 during operation, reduce intake noise, and improve the NVH experience in the cockpit. Of course, the present scheme is not limited to this. In other embodiments, the distributed power intake system 10 can also not be provided with the expander 400, but a one-way valve 300 is directly arranged in the communication pipeline between the air outlet and the range expander 100.

[0039] The scheme corresponds to each range extender 100 and sets an expansion cavity 410, which can realize the independent air intake function of each range extender 100 of the distributed power air intake system 10.

[0040] Further, in the embodiment, the expander 400 is provided with an air intake joint 420, the air intake joint 420 is provided with an air intake passage 421 corresponding to each expansion cavity 410, and the plurality of air intake passages 421 are in communication with the air outlet; it can be understood that the air intake joint 420 can facilitate the connection of the air cleaner 200 and the expander 400, thereby improving the installation efficiency of the distributed power air intake system 10. Of course, the scheme is not limited to this, and in other embodiments, the air intake joint 420 can also not be provided on the expander 400.

[0041] Further, the air cleaner 200 can also be provided with an air outlet joint, and the air outlet is shaped in the air outlet joint; in this way, the installation efficiency of the distributed power air intake system 10 can also be improved.

[0042] Among them, in an embodiment, the air outlet joint is provided with an air outlet passage corresponding to each air intake passage 421, an air intake passage 421 is in communication with an air outlet passage, and the air outlet is shaped at the air intake end of the air outlet joint. Of course, the scheme is not limited to this, and in other embodiments, the air outlet joint can also have and be provided with one air outlet passage, and the air outlet passage is in communication with the plurality of air intake passages 421, respectively.

[0043] Optionally, the one-way valve 300 is arranged in the air intake passage 421; specifically, one one-way valve 300 is arranged in each air intake passage 421, so that the one-way valve 300 is arranged in the air intake passage 421, which can prevent the reverse flow of the airflow and optimize the air intake stability of the range extender 100 under low-speed working conditions. Of course, the scheme is not limited to this, and in other embodiments, the one-way valve 300 can also be arranged at the air inlet of the range extender 100; or the one-way valve 300 is arranged at the air outlet communication port 411 of the expansion cavity 410.

[0044] Optionally, the one-way valve 300 is arranged at one side of the air intake passage 421 close to the expansion cavity 410. Of course, the scheme is not limited to this, and in other embodiments, the one-way valve 300 can also be arranged at one side of the air intake passage 421 away from the expansion cavity 410.

[0045] Further, the air inlet joint 420 is sealingly connected with the air outlet, so that unfiltered air cannot enter the air inlet channel 421 from the gap between the air inlet joint 420 and the air outlet, thereby providing clean air required for combustion for the engine. If hard particles such as sand, dust, metal debris, etc. carried in the unfiltered air, the hard particles will impact the wall of the air inlet channel 421, the expansion chamber 410, the range extender 100, etc. at a high speed under the flow rate of the air flow, causing abrasive wear. Secondly, if soot particles (PM) carried in the unfiltered air, the soot particles (PM) will oxidize and polymerize with oil vapor in the high-temperature combustion chamber (> 1500℃), forming stubborn carbon deposits, thereby blocking the fuel injection nozzle hole, and thus causing poor fuel atomization and incomplete combustion.

[0046] It can be understood that all connections of the distributed power air intake system 10 are sealingly connected, so that unfiltered air cannot enter the air flow channel of the distributed power air intake system 10 from the gap between the connections, thereby providing clean air required for combustion for the engine. Further, the hard particles such as sand, dust, metal debris, etc. carried in the unfiltered air are prevented from causing abrasive wear. Also, the soot particles (PM) carried in the unfiltered air are prevented from oxidizing and polymerizing with oil vapor in the high-temperature combustion chamber, forming stubborn carbon deposits, thereby reducing the probability of poor fuel atomization and incomplete combustion.

[0047] Optionally, the air inlet joint 420 is sealingly connected with the air outlet by a clamp; it can be understood that the clamp is fastened by bolts or hydraulic tools, without welding or threading, and the air inlet joint 420 and the air outlet can be directly fixed, and only a wrench or a hydraulic clamp is required to complete the fastening, which has low skill requirement for the operator. Such a fastening and sealing method is simple to operate, and is conducive to improving the installation efficiency of the distributed power air intake system 10. Secondly, the clamp is usually matched with a rubber O-ring or a polytetrafluoroethylene (PTFE) gasket to form a double-sealing barrier, which can improve the sealing performance of the distributed power air intake system 10. Furthermore, the clamp connection can be disassembled at any time, which is convenient for adjusting the pipeline layout of the distributed power air intake system 10. Of course, the present scheme is not limited thereto, and in other embodiments, a gasket can also be arranged at the connection between the air inlet joint 420 and the air outlet, thereby increasing the sealing performance of the air inlet joint 420 and the air outlet.

[0048] Optionally, each expansion chamber 410 is provided with an air outlet communication port 411 for communicating with the corresponding range extender, and the air outlet communication port 411 is arranged away from the air inlet joint 420; in this way, the mutual interference of the air inlet and air outlet of the expansion chamber 410 can be reduced, and the air flow can enter the expansion chamber 410 more uniformly.

[0049] Optionally, in the scheme, the gas outlet is provided with a supercharger on the pipeline in communication with the corresponding range extender 100; the supercharger can compress the intake air, so that the intake air density in the range extender 100 is increased, the fuel molecule concentration is increased, and the combustion is more sufficient.

[0050] The utility model discloses still a kind of car, the car includes distributed power air intake system, the specific structure of the distributed power air intake system refers to above-mentioned embodiment, since the car has adopted all technical solutions of above-mentioned all embodiments, thus at least have all beneficial effects brought by the technical scheme of above-mentioned embodiment, here no longer repeat.

[0051] The above-mentioned is only the exemplary embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure transformation made by using the utility model specification and drawing contents, or direct / indirect application in other related technical fields is included in the patent protection range of the utility model.

Claims

1. A distributed power intake system, characterized by, The distributed power intake system comprises: a plurality of range extenders; and an air cleaner provided with an air outlet, each of the range extenders being in communication with the air outlet, and a one-way valve being provided between each of the range extenders and the air outlet to control the passage of the air cleaner to the range extenders. The distributed power intake system further comprises an expander, the expander being provided with an expansion cavity corresponding to each of the range extenders, the air outlet being in communication with a plurality of the expansion cavities, and each of the range extenders being in communication with one of the expansion cavities.

2. The distributed power intake system of claim 1, wherein, The expander is provided with an air inlet connector, the air inlet connector being provided with an air inlet passage corresponding to one of the expansion cavities, and a plurality of the air inlet passages being in communication with the air outlet.

3. The distributed power intake system of claim 2, wherein, The one-way valve is arranged in the air inlet passage.

4. The distributed power intake system of claim 3, wherein, The one-way valve is arranged on a side of the air inlet passage close to the expansion cavity.

5. The distributed power intake system of claim 4, wherein, The air inlet connector is in sealed connection with the air outlet.

6. The distributed power intake system of claim 3, wherein, The air inlet connector is in sealed connection with the air outlet by a clamp.

7. The distributed power intake system of claim 6, wherein, Each of the expansion cavities is provided with an air outlet communication port for communication with the corresponding range extender, and the air outlet communication port is arranged away from the air inlet connector.

8. The distributed power intake system of claim 3, wherein, A pressure booster is arranged on a pipeline through which the air outlet is in communication with the corresponding range extender.

9. The distributed power intake system of any of claims 1 to 8, wherein, The distributed power intake system as claimed in any one of claims 1 to 9.

10. An automobile characterized by comprising: ​

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