Braking particle collector, automobile braking system and vehicle

Abstract

The present invention relates to a brake particle trap, an automobile braking system, and a vehicle. The brake particle trap comprises: a cavity with a built-in 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. The cavity is configured to provide a guide path for the movement of brake particles; the first and second magnetic field generating devices are disposed on either side of the cavity to provide magnetic fields for the cavity; the first and second particle adsorption layers are configured to adsorb brake particles in the cavity; the first particle adsorption layer is disposed between the first magnetic field generating device and the cavity; and the second particle adsorption layer is disposed between the second magnetic field generating device and the cavity. Compared with existing technologies, the present invention has the advantages of reduced environmental pollution, improved particle capture efficiency, reduced brake load, simple structure, and ease of installation.

Description

Technical Field

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

[0002] Brake particulate matter emissions refer to tiny particles produced by the friction between the brake pads (brake pads) and the brake discs (or drums) during braking, leading to material wear. These particles primarily consist of metal particles, wear particles, and dust, which are released into the environment through airflow, impacting air quality. Currently, with the exception of a few high-end models, most vehicles use cast iron brake discs, resulting in a high concentration of ferromagnetic particles in brake particulate matter.

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

[0004] Currently, most vehicles don't capture brake particulate matter, leaving a significant amount of it directly released into the atmosphere, polluting the environment. Existing technologies for capturing brake particulate matter are inefficient and cannot fully meet future emissions regulations and environmental protection requirements. 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 braking 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 particulate matter trap is provided, comprising: a cavity with a built-in 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, wherein:

[0008] The cavity is used to provide a guide 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 both 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; 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 braking particulate matter collector further includes: a collector moving mechanism, which is used to drive the cavity, the first particulate matter adsorption layer, the second particulate matter 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 particulate matter adsorption layer, the second particulate matter 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 braking particulate matter 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 energized when the automobile braking mechanism is converted from a non-braking state to a braking state; and to control the electromagnet to be de-energized 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 particulate matter collector further includes:

[0018] The housing 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 concave in shape.

[0020] According to a second aspect of the present invention, there is provided an automobile braking system, comprising at least one brake particle collector provided by the first aspect or any possible implementation of the first aspect and an automobile braking mechanism; the automobile braking mechanism comprises a brake disc and a brake; when the automobile 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 brake particle collector covers part or all of the brake disc.

[0021] As an optimal 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 braking force is generated, which reduces 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. Improved particle capture efficiency: The brake particle collector provided by the present invention combines the characteristics of brake particle emissions with the high content of ferromagnetic particles 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 particulate matter collector provided by the present invention has a simple structure, is easy to install and maintain, and can be installed separately on the disc brake system of an existing fuel vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is an axial schematic diagram of a brake particulate matter 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 in a working state;

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

[0031] Figure 4 This is 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 clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts 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 those skilled in the art 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" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0036] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0037] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, 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 particulate matter collector. On the one hand, the collector uses a cavity to provide a guide path for the brake particulate matter, so that the particulate matter adsorption layer can effectively adsorb the brake particulate matter; 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 particulate matter flowing through the cavity can be more effectively adsorbed by the particulate matter adsorption layer, thereby further improving the adsorption effect of the brake particulate matter collector.

[0039] See Figure 1 、 Figure 2 and Figure 3 The structure of a brake particle trap 100 provided in an embodiment of the present application is shown. The brake particle trap 100 can be applied to a vehicle braking system. The brake particle trap 100 can include: a cavity 110 with a built-in 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 guide 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 particulate matter trap 100, the application scenario of the above-mentioned brake particulate matter trap 100 in the automobile brake system 200 is introduced. Figures 1 to 3 The aforementioned vehicle braking system 200 includes a vehicle braking mechanism and at least one brake particle trap 100. The vehicle braking mechanism includes a brake disc 210, a brake 220, and a brake pad 230. The brake 220 is connected to the brake pad 230. When the vehicle braking mechanism is in the braking state, the brake 220 controls the brake pad 230 to press against the brake disc 210, thereby braking the vehicle. When the vehicle braking mechanism is in the braking state, the brake particle trap 100 is arranged on one or both sides of the brake disc 210 along the circumference of the brake disc 210. The cavity 110 of at least one brake particle trap 100 partially or entirely covers the brake disc 210.

[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 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 understood 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. 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. When the vehicle's brake mechanism is in the braking state, the Lenz braking force will assist the vehicle's brake mechanism in braking. However, when the vehicle's brake mechanism is in the non-braking state, the aforementioned Lenz braking force will affect the normal power of the vehicle and have a certain impact on the vehicle's acceleration. Based on this, the embodiments of the present application provide the following solutions:

[0049] See Figure 4 Optionally, when both the first magnetic field generating device 140 and the second magnetic field generating device 150 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, it drives 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 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 both the first magnetic field generating device 140 and the second magnetic field generating device 150 include electromagnets, the braking particulate matter 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 energized when the automobile braking mechanism is converted from a non-braking state to a braking state; and to control the electromagnet to be deenergized 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 brake particulate matter collector 100 can be driven by the collector moving mechanism 160 to separate from the brake disc 210.

[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 may also be adsorption resins, nanomaterials, polymer carriers loaded with adsorbents, and the like.

[0060] Optionally, the brake particulate 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 concave in 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 this application, it should be understood that the disclosed devices 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 separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across 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 each embodiment of the present application can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0067] The above description is merely an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, various modifications and variations of the present application are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A brake particulate matter 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 guide 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 both 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; 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.

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

3. The brake particulate matter collector according to claim 1, 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.

4. The brake particulate matter 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 braking particulate matter trap further includes: The electromagnet power on / off control device is connected to the electromagnet and is used to control the electromagnet to be energized when the automobile braking mechanism is converted from a non-braking state to a braking state; and to control the electromagnet to be de-energized when the automobile braking mechanism is converted from a braking state to a non-braking state.

5. The brake particulate matter collector according to any one of claims 1 to 4, characterized in that: The first particle adsorption layer and the second particle adsorption layer are both made of porous materials.

6. The brake particulate matter collector according to any one of claims 1 to 4, characterized in that: The brake particle trap further comprises: 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.

7. An automobile braking system, characterized in that: The invention comprises at least one brake particle collector according to any one of claims 1 to 6 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 brake particle collector covers part or all of the brake disc.

8. The automobile braking system according to claim 7, 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. According to Lenz's law, additional Lenz braking force is generated, which reduces the friction brake load, thereby assisting automobile braking and reducing the generation of brake particles.

9. A vehicle, characterized in that: The vehicle brake system comprises at least one vehicle brake system according to claim 7.

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