Braking particulate matter catcher, automobile braking system and automobile

Abstract

The invention relates to a braking particulate matter catcher, an automobile braking system and a vehicle, the braking particulate matter catcher comprises a cavity internally provided with a magnetic field, a first particulate matter adsorption layer, a second particulate matter adsorption layer, a first magnetic field generating device and a second magnetic field generating device, the cavity is used for providing a guide path for movement of braking particulate matter; the first magnetic field generating device and the second magnetic field generating device are respectively arranged on two sides of the cavity and are used for providing a magnetic field for the cavity; the first particulate matter adsorption layer and the second particulate matter adsorption layer are used for adsorbing braking particulate matters in the cavity; wherein the first particulate matter adsorption layer is arranged between the first magnetic field generation device and the cavity; and the second particulate matter adsorption layer is arranged between the second magnetic field generation device and the cavity. Compared with the prior art, the device has the advantages of reducing environmental pollution, improving the particulate matter trapping efficiency, reducing the load of the brake, being simple in structure, easy to install and the like.

Description

Technical Field

[0001] The invention relates to the technical field of automobile braking and air pollution prevention and control, and in particular to a brake particle collector, an automobile braking system and a vehicle. Background Art

[0002] Braking particulate matter emissions refer to the tiny particles produced by the friction between the brake pads (brake pads) and the brake discs (or brake drums) during the braking process of the vehicle, which causes material wear. These particles mainly include metal particles, wear particles and dust, etc. They will be discharged into the environment with the airflow, affecting the air quality. At present, except for a small number of high-end models, most models use cast iron brake discs, so the braking particulate matter contains a large number of ferromagnetic particles.

[0003] Particulate matter emitted by vehicles is one of the sources of PM2.5. With the strengthening of control over engine exhaust particulate matter emissions and the promotion of electric vehicles, the relative contribution of non-exhaust emission sources (such as brake wear and tire wear) to automobile particulate matter emissions has increased. According to research, under urban conditions, non-exhaust particulate emissions account for about 50% of traffic-related particulate emissions, while brake wear particulate emissions account for 16% to 55% of non-exhaust emissions.

[0004] At present, most cars do not capture brake particulate matter, and a large amount of brake particulate matter is directly discharged into the atmosphere, thereby polluting the environment. In the existing technology, the capture efficiency of brake particulate matter by vehicles is not high, and cannot fully meet the requirements of future emission regulations and environmental protection. Summary of the invention

[0005] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide a brake particulate matter collector, automobile brake system and vehicle that reduce environmental pollution, improve particle capture efficiency, reduce brake load, have a simple structure and are easy to install.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] According to a first aspect of the present invention, a brake particle trap is provided, the brake particle trap comprising: a cavity with a magnetic field, a first particle adsorption layer, a second particle adsorption layer, a first magnetic field generating device and a second magnetic field generating device, wherein:

[0008] The cavity is used to provide a guiding path for the movement of the braking particles;

[0009] The first magnetic field generating device and the second magnetic field generating device are respectively arranged on two sides of the cavity, and are used to provide a magnetic field for the cavity;

[0010] The first particle adsorption layer and the second particle adsorption layer are used to adsorb the braking particles in the cavity; wherein the first particle adsorption layer is arranged between the first magnetic field generating device and the cavity; and the second particle adsorption layer is arranged between the second magnetic field generating device and the cavity.

[0011] As a preferred technical solution, the first magnetic field generating device and the second magnetic field generating device both include at least one of a permanent magnet and an electromagnet.

[0012] As a preferred technical solution, when both the first magnetic field generating device and the second magnetic field generating device include permanent magnets, the brake particle collector also includes: a collector moving mechanism, which is used to drive the cavity, the first particle adsorption layer, the second particle adsorption layer, the first magnetic field generating device and the second magnetic field generating device to move toward the brake disc in the automobile braking mechanism when the automobile braking mechanism is converted from a non-braking state to a braking state, so that the cavity covers the brake disc; and, when the automobile braking mechanism is converted from a braking state to a non-braking state, drive the cavity, the first particle adsorption layer, the second particle adsorption layer, the first magnetic field generating device and the second magnetic field generating device to separate from the brake disc.

[0013] As a preferred technical solution, the collector moving mechanism includes at least one of a connecting rod transmission device, a screw transmission device and a hydraulic transmission device.

[0014] As a preferred technical solution, when both the first magnetic field generating device and the second magnetic field generating device include electromagnets, the brake particle collector further includes:

[0015] The electromagnet power on / off control device is connected to the electromagnet and is used to control the electromagnet to be powered on when the automobile braking mechanism is converted from a non-braking state to a braking state; and to control the electromagnet to be powered off when the automobile braking mechanism is converted from a braking state to a non-braking state.

[0016] As a preferred technical solution, both the first particle adsorption layer and the second particle adsorption layer are made of porous materials.

[0017] As a preferred technical solution, the brake particle collector further includes:

[0018] The shell is used to accommodate the cavity, the first particle adsorption layer, the second particle adsorption layer, the first magnetic field generating device and the second magnetic field generating device.

[0019] As a preferred technical solution, the shell is in a concave shape.

[0020] According to a second aspect of the present invention, a vehicle braking system is provided, comprising at least one brake particle collector provided by the first aspect or any possible implementation of the first aspect and a vehicle braking mechanism; the vehicle braking mechanism comprises a brake disc and a brake; when the vehicle braking mechanism is in a braking state, the brake particle collector is arranged on one side or both sides of the brake along the circumferential direction of the brake disc, and the cavity of at least one of the brake particle collectors covers part or all of the brake disc.

[0021] As a preferred technical solution, when the automobile braking mechanism is in the braking process, the metal brake disc moves in the magnetic field formed by the brake particle collector. According to Lenz's law, additional Lenz's braking force is generated to reduce the friction brake load, thereby assisting the automobile braking and reducing the generation of brake particles.

[0022] According to a third aspect of the present invention, a vehicle is provided, comprising at least one vehicle braking system provided by the second aspect or any possible implementation of the second aspect.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. Reduce environmental pollution: The brake particle collector provided by the present invention can effectively capture brake particles generated during the braking process, reducing pollution to the environment;

[0025] 2. Improvement of particle capture efficiency: The brake particle collector provided by the present invention combines the characteristics of a large number of ferromagnetic particles in brake particle emissions, and improves the particle capture efficiency through the adsorption effect of the magnetic field;

[0026] 3. Reduce brake load: The brake particle collector provided by the present invention can provide Lenz braking force, reduce brake load, and thus reduce the generation of brake particles;

[0027] 4. Simple structure and easy installation: The brake particle collector provided by the present invention has a simple structure, is easy to install and maintain, and can be separately installed on the disc brake system of an existing fuel vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 An axial schematic diagram of a brake particle collector provided in an embodiment of the present application;

[0029] Figure 2 A cross-sectional schematic diagram of the brake particulate matter collector provided in an embodiment of the present application when in a working state;

[0030] Figure 3 A front view of the brake particle collector provided in an embodiment of the present application when in a working state;

[0031] Figure 4 A schematic diagram of the arrangement of the brake particulate matter collector provided in an embodiment of the present application when it is in a non-working state.

[0032] The numbers in the figure show:

[0033] 100. Braking particle collector, 110. Cavity, 120. First particle adsorption layer, 130. Second particle adsorption layer, 140. First magnetic field generating device, 150. Second magnetic field generating device, 160. Collector moving mechanism, 170. Housing, 200. Automobile braking system, 210. Brake disc, 220. Brake, 230. Brake pad. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0036] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0037] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0038] An embodiment of the present application provides a brake particle collector. On the one hand, the collector uses a cavity to provide a guide path for the brake particles, so that the particle adsorption layer can effectively adsorb the brake particles. On the other hand, the collector also uses a magnetic field generating device to provide a magnetic field for the cavity, so that the ferromagnetic particles in the brake particles flowing through the cavity can be more effectively adsorbed by the particle adsorption layer, thereby further improving the adsorption effect of the brake particle collector.

[0039] See also Figure 1 , Figure 2 and Figure 3 The schematic diagram of the structure of the brake particle trap 100 provided in the embodiment of the present application is shown, and the brake particle trap 100 can be applied to the automobile braking system. The brake particle trap 100 can include: a cavity 110 with a magnetic field, a first particle adsorption layer 120, a second particle adsorption layer 130, a first magnetic field generating device 140 and a second magnetic field generating device 150, wherein:

[0040] The cavity 110 is used to provide a guiding path for the movement of the braking particles;

[0041] The first magnetic field generating device 140 and the second magnetic field generating device 150 are respectively arranged on both sides of the cavity 110 to provide a magnetic field for the cavity 110;

[0042] The first particle adsorption layer 120 and the second particle adsorption layer 130 are used to adsorb braking particles in the cavity 110; wherein the first particle adsorption layer 120 is arranged between the first magnetic field generating device 140 and the cavity 110, and the second particle adsorption layer 130 is arranged between the second magnetic field generating device 150 and the cavity 110.

[0043] For ease of understanding, before introducing the above-mentioned brake particle trap 100, the application scenario of the above-mentioned brake particle trap 100 in the automobile brake system 200 is first introduced. Figures 1 to 3 The above-mentioned automobile braking system 200 includes an automobile braking mechanism and at least one brake particle collector 100. The automobile braking mechanism includes: a brake disc 210, a brake 220 and a brake pad 230. Among them, the brake 220 is connected to the brake pad 230. When the automobile braking mechanism is in a braking state, the brake 220 controls the brake pad 230 to press the brake disc 210, thereby braking the vehicle. When the automobile braking mechanism is in a braking state, the brake particle collector 100 is arranged on one side or both sides of the brake 220 along the circumferential direction of the brake disc 210, and the cavity 110 of at least one brake particle collector 100 covers part or all of the brake disc 220.

[0044] It is understandable that when the brake pad 230 presses the brake disc 210, brake particles are generated due to the friction between the brake pad 230 and the brake disc 210, and the brake particle collector 100 arranged in the circumferential direction of the brake disc 210 can capture the brake particles.

[0045] It is understandable that the above-mentioned braking particles include ferromagnetic particles and non-ferromagnetic particles. The particle adsorption layer can adsorb some non-ferromagnetic particles, and under the action of the magnetic field, some or even all of the ferromagnetic particles will also be adsorbed by the particle adsorption layer.

[0046] The first magnetic field generating device 140 and the second magnetic field generating device 150 can be implemented in at least the following three ways:

[0047] Implementation method 1: both the first magnetic field generating device 140 and the second magnetic field generating device 150 use permanent magnets;

[0048] It is understandable that if the magnetic field generating device uses a permanent magnet, the brake disc will rotate in the magnetic field generated by the permanent magnet, and according to Lenz's law, the rotation of the brake disc 210 in the magnetic field generated by the permanent magnet will generate a Lenz braking force, and when the automobile braking mechanism is in a braking state, the Lenz braking force will assist the automobile braking mechanism in braking. However, when the automobile braking mechanism is in a non-braking state, the above-mentioned Lenz braking force will affect the normal power of the automobile and have a certain impact on the acceleration of the automobile. Based on this, the embodiment of the present application provides the following solution:

[0049] See also Figure 4 Optionally, when the first magnetic field generating device 140 and the second magnetic field generating device 150 both include permanent magnets, the braking particle trap 100 further includes:

[0050] The collector moving mechanism 160 is used to drive the cavity 110, the first particle adsorption layer 120, the second particle adsorption layer 130, the first magnetic field generating device 140 and the second magnetic field generating device 150 to move toward the brake disc 210 in the automobile braking mechanism when the automobile braking mechanism is converted from a non-braking state to a braking state, so that the cavity 110 covers the brake disc 210; and when the automobile braking mechanism is converted from a braking state to a non-braking state, the cavity 110, the first particle adsorption layer 120, the second particle adsorption layer 130, the first magnetic field generating device 140 and the second magnetic field generating device 150 are driven to separate from the brake disc 210.

[0051] Optionally, the collector moving mechanism 160 includes at least one of a connecting rod transmission device, a screw transmission device and a hydraulic transmission device.

[0052] Implementation method 2: both the first magnetic field generating device 140 and the second magnetic field generating device 150 are electromagnets;

[0053] Optionally, when the first magnetic field generating device 140 and the second magnetic field generating device 150 both include electromagnets, the brake particle trap 100 further includes:

[0054] The electromagnet power on / off control device is connected to the electromagnet and is used to control the electromagnet to be powered on when the automobile braking mechanism is converted from a non-braking state to a braking state; and to control the electromagnet to be powered off when the automobile braking mechanism is converted from a braking state to a non-braking state.

[0055] Implementation method three: the first magnetic field generating device 140 includes a permanent magnet and an electromagnet, and the second magnetic field generating device 150 includes a permanent magnet and an electromagnet;

[0056] In this implementation, the electromagnet can enhance the magnetic field generated by the permanent magnet, thereby enhancing the capture effect of the brake particle trap 100 on ferromagnetic brake particles.

[0057] In addition, it can be understood that when the magnetic field generating device adopts a permanent magnet and an electromagnet, the above-mentioned brake particle collector 100 can drive the collector moving mechanism 160 to separate from the brake disc 210 through the above-mentioned collector moving mechanism 160.

[0058] Optionally, the first particle adsorption layer 120 and the second particle adsorption layer 130 are both made of porous materials, such as activated carbon, molecular sieve, etc.

[0059] It is understandable that the materials used for the first particle adsorption layer 120 and the second particle adsorption layer 130 are not limited to porous materials, and adsorption resins, nanomaterials, polymer carriers loaded with adsorbents, etc. may also be used.

[0060] Optionally, the brake particle filter also includes:

[0061] The housing 170 is used to accommodate the cavity 110 , the first particle adsorption layer 120 , the second particle adsorption layer 130 , the first magnetic field generating device 140 and the second magnetic field generating device 150 .

[0062] Optionally, the housing 170 is in a concave shape.

[0063] Based on the same inventive concept, an embodiment of the present application also provides a vehicle, which includes at least one of the above-mentioned automobile braking systems 200.

[0064] In the embodiments provided in the present application, it should be understood that the disclosed device can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interface, the indirect coupling or communication connection of the device or unit can be electrical, mechanical or other forms.

[0065] In addition, the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0066] Furthermore, the functional modules in the various embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.

[0067] The above description is only an embodiment of the present application and is not intended to limit the protection scope of the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A brake particle collector, characterized in that: The brake particle trap comprises: a cavity with a magnetic field, a first particle adsorption layer, a second particle adsorption layer, a first magnetic field generating device, and a second magnetic field generating device, wherein: The cavity is used to provide a guiding path for the movement of the braking particles; The first magnetic field generating device and the second magnetic field generating device are respectively arranged on two sides of the cavity, and are used to provide a magnetic field for the cavity; The first particle adsorption layer and the second particle adsorption layer are used to adsorb the braking particles in the cavity; wherein the first particle adsorption layer is arranged between the first magnetic field generating device and the cavity; and the second particle adsorption layer is arranged between the second magnetic field generating device and the cavity.

2. The brake particle collector according to claim 1, characterized in that: The first magnetic field generating device and the second magnetic field generating device both include at least one of a permanent magnet and an electromagnet.

3. The brake particle collector according to claim 2, characterized in that: When both the first magnetic field generating device and the second magnetic field generating device include permanent magnets, the braking particle trap further includes: The collector moving mechanism is used to drive the cavity, the first particle adsorption layer, the second particle adsorption layer, the first magnetic field generating device and the second magnetic field generating device to move toward the brake disc in the automobile braking mechanism when the automobile braking mechanism is converted from a non-braking state to a braking state, so that the cavity covers the brake disc; and, when the automobile braking mechanism is converted from a braking state to a non-braking state, drive the cavity, the first particle adsorption layer, the second particle adsorption layer, the first magnetic field generating device and the second magnetic field generating device to separate from the brake disc.

4. The brake particle collector according to claim 3, characterized in that: The collector moving mechanism includes at least one of a connecting rod transmission device, a screw transmission device and a hydraulic transmission device.

5. The brake particle collector according to claim 2, characterized in that: When both the first magnetic field generating device and the second magnetic field generating device include electromagnets, the brake particle trap further includes: The electromagnet power on / off control device is connected to the electromagnet and is used to control the electromagnet to be powered on when the automobile braking mechanism is converted from a non-braking state to a braking state; and to control the electromagnet to be powered off when the automobile braking mechanism is converted from a braking state to a non-braking state.

6. The brake particle collector according to any one of claims 1 to 5, characterized in that: The first particle adsorption layer and the second particle adsorption layer are both made of porous materials.

7. The brake particle collector according to any one of claims 1 to 5, characterized in that: The brake particle collector also includes: A housing for accommodating the cavity, the first particle adsorption layer, the second particle adsorption layer, the first magnetic field generating device, and the second magnetic field generating device; The shell is in a concave shape.

8. An automobile braking system, characterized in that: It comprises at least one brake particle collector as described in any one of claims 1 to 7 and an automobile brake mechanism; the automobile brake mechanism comprises a brake disc and a brake; when the automobile brake mechanism is in a braking state, the brake particle collector is arranged on one side or both sides of the brake along the circumferential direction of the brake disc, and the cavity of at least one of the brake particle collectors covers part or all of the brake disc.

9. The automobile braking system according to claim 8, characterized in that: When the automobile brake mechanism is in the braking process, the metal brake disc moves in the magnetic field formed by the brake particle collector, and according to Lenz's law, additional Lenz braking force is generated to reduce the friction brake load, thereby assisting the automobile braking and reducing the generation of brake particles.

10. A vehicle, characterized in that: Comprising at least one vehicle braking system as claimed in claim 8.

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