Magnetic fluid sealing device for brake shell of brake disc

By introducing a cooling circulation system and a refrigerator into the magnetic fluid sealing device of the brake disc and brake housing, the problem of high temperature affecting the stability of the magnetic fluid is solved, and the cooling effect of the magnetic fluid sealing device is achieved.

CN223344681UActive Publication Date: 2025-09-16上海铭峥科技有限公司
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Patent Information

Application Number
CN202423016911.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-09
Publication Date
2025-09-16
Estimated Expiration
2034-12-09

AI Technical Summary

Technical Problem

The existing brake disc brake housing magnetic fluid sealing device lacks a cooling function, resulting in high temperature affecting the magnetic and rheological properties of the magnetic fluid.

Method used

A magnetic fluid sealing device with a cooling circulation system is designed, which includes an annular cooling tank, a coolant storage tank, a pump, a refrigerator and a liquid level sensor. The temperature is reduced by the coolant circulation and the refrigerator to ensure that the magnetic fluid operates within an appropriate temperature range.

Benefits of technology

It effectively removes the heat during the operation of the sealing device, maintains the stability of the magnetic and rheological properties of the magnetic fluid, and avoids the cooling effect affected by excessive coolant temperature.

✦ Generated by Eureka AI based on patent content.

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Abstract

The magnetic fluid sealing device comprises a shell body, an annular cooling groove is formed in an inner cavity of the shell body, box bodies are fixedly connected to the left side and the right side of the shell body, cooling liquid storage grooves are formed in inner cavities of the box bodies, and cooling liquid is arranged in the cooling liquid storage grooves. The bottom of an inner cavity of the cooling liquid storage groove is fixedly connected with a pump, and a water outlet of the pump is fixedly connected with a second connecting pipe. Cooling liquid in the cooling liquid storage tank can be fed into the second connecting pipe through the pump machine, the cooling liquid can be fed into the annular cooling tank through the second connecting pipe, and the cooling liquid in the annular cooling tank can flow back into the cooling liquid storage tank through the first connecting pipe, so that a cooling circulation system can be formed, and the cooling efficiency is improved. Heat generated in the operation process of the sealing device can be taken away, it is guaranteed that the magnetofluid is always in the proper working temperature range, and the magnetism and rheological property stability of the magnetofluid is guaranteed.
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Description

Technical Field

[0001] The utility model relates to the technical field of magnetic fluid sealing devices, in particular to a magnetic fluid sealing device for a brake disc brake housing. Background Art

[0002] In automotive braking systems, the brake disc and housing play a crucial role in protecting internal brake components and ensuring a stable braking process. However, due to the harsh operating conditions generated by brake discs during braking, such as high temperatures, dust, and complex mechanical vibrations, traditional sealing methods, such as rubber seals, often struggle to meet long-term sealing requirements. High temperatures can cause rubber to age and deform, resulting in a loss of sealing performance; dust easily intrudes into the seals, exacerbating seal wear; and mechanical vibration can loosen or create gaps in the seals, causing lubricant leakage within the housing. This can affect the proper functioning of the braking system, reduce braking efficiency, and even pose a safety hazard. Therefore, a magnetic fluid sealing device is required. Magnetic fluid sealing technology is based on magnetic fluid. When magnetic fluid is injected into a gap in a magnetic field, it fills the gap, forming a "liquid O-ring." However, existing magnetic fluid sealing devices for brake disc and housings lack cooling capabilities, resulting in the high temperatures generated during braking, which can affect the magnetic and rheological properties of the magnetic fluid. To address this issue, we propose a magnetic fluid sealing device for brake disc and housings. Utility Model Content

[0003] The purpose of the utility model is to provide a magnetic fluid sealing device for a brake disc brake housing, which has the advantage of a cooling and temperature reduction function, and solves the problem that the existing magnetic fluid sealing device for a brake disc brake housing does not have a cooling and temperature reduction function, resulting in the high temperature generated during brake disc braking affecting the stability of the magnetic and rheological properties of the magnetic fluid.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a magnetic fluid sealing device for a brake disc brake housing, comprising a housing body, an inner cavity of the housing body being provided with an annular cooling groove, the left and right sides of the housing body being fixedly connected to a box body, an inner cavity of the box body being provided with a coolant storage tank, a pump being fixedly connected to the bottom of the inner cavity of the coolant storage tank, a water outlet of the pump being fixedly connected to a second connecting pipe, the other end of the second connecting pipe being fixedly connected to the front end of the top of the annular cooling groove, a first connecting pipe being fixedly connected to the top of the annular cooling groove, the other end of the first connecting pipe being fixedly connected to the top of the box body, a cooling groove being provided at the lower part of the inner cavity of the box body, and a refrigerator being installed in the inner cavity of the cooling groove.

[0005] Preferably, a liquid level sensor is fixedly connected to the bottom of the inner cavity of the coolant storage tank, a wireless transmitter is fixedly connected to the side of the box body, the output end of the liquid level sensor is electrically connected to the input end of the wireless transmitter, and the output end of the wireless transmitter is electrically connected to the input end of the external display.

[0006] Preferably, hydraulic grooves are provided on both ends of the inner cavity of the shell body, splints are provided on the sides of the shell body, annular grooves are provided on both sides of the inner cavity of the shell body, a magnet is fixedly connected to the inner cavity of the annular groove, and a magnetic fluid body is provided in the inner cavity of the shell body.

[0007] Preferably, the heat dissipation surface of the refrigerator extends to the lower end of the bottom of the box body, and the heat dissipation surface of the refrigerator is provided with a radiator.

[0008] Preferably, a liquid filling port is provided on the top of the box body, and a threaded cover is provided on the top of the liquid filling port.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0010] 1. The utility model can deliver the coolant in the coolant storage tank into the second connecting pipe through the pump, and the coolant can be delivered to the annular cooling tank by the second connecting pipe. The coolant in the annular cooling tank can be made to flow back to the coolant storage tank by the first connecting pipe, thereby forming a cooling circulation system, which can take away the heat generated by the sealing device during operation, ensure that the magnetic fluid is always within its appropriate operating temperature range, ensure that the magnetic and rheological properties of the magnetic fluid are stable, and utilize the refrigerator to power on for cooling, thereby reducing the temperature of the coolant in the coolant storage tank and preventing the coolant temperature from being too high and affecting the cooling effect.

[0011] 2. The utility model can detect the liquid level height in the coolant storage tank through the liquid level sensor and transmit the detection data to the wireless transmitter. The wireless transmitter can transmit the detection data to the external display, making it convenient for people to view the liquid level height and add coolant in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0014] Figure 3 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0015] Figure 4 This is an enlarged structural diagram of point A of the present invention.

[0016] In the figure: 1. Shell body; 2. Box body; 3. Wireless transmitter; 4. First connecting pipe; 5. Second connecting pipe; 6. Threaded cover; 7. Clamp; 8. Refrigerator; 9. Coolant storage tank; 10. Liquid level sensor; 11. Refrigeration tank; 12. Pump; 13. Liquid filling port; 14. Annular cooling tank; 15. Annular groove; 16. Magnet; 17. Magnetic fluid body; 18. Hydraulic tank. DETAILED DESCRIPTION

[0017] 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 embodiments described are only 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 making creative efforts are within the scope of protection of the present invention.

[0018] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments. Example

[0019] See also Figure 1-4 As shown, the utility model provides a magnetic fluid sealing device for a brake disc brake housing, comprising a housing body 1, an inner cavity of the housing body 1 is provided with an annular cooling groove 14, the left and right sides of the housing body 1 are fixedly connected to a box body 2, the inner cavity of the box body 2 is provided with a coolant storage tank 9, the bottom of the inner cavity of the coolant storage tank 9 is fixedly connected to a pump 12, the water outlet of the pump 12 is fixedly connected to a second connecting pipe 5, the other end of the second connecting pipe 5 is fixedly connected to the front end of the top of the annular cooling groove 14, the top of the annular cooling groove 14 is fixedly connected to a first connecting pipe 4, the other end of the first connecting pipe 4 is fixedly connected to the top of the box body 2 The outer shell 1 is fixedly connected to the outer shell 1, and a refrigeration groove 11 is provided at the lower part of the inner cavity of the box body 2. The inner cavity of the refrigeration groove 11 is installed with a refrigerator 8. Hydraulic grooves 18 are provided at both ends of the inner cavity of the outer shell body 1. A splint 7 is provided on the side of the outer shell body 1. An annular groove 15 is provided on both sides of the inner cavity of the outer shell body 1. The inner cavity of the annular groove 15 is fixedly connected with a magnet 16. A magnetic fluid body 17 is provided in the inner cavity of the outer shell body 1. The heat dissipation surface of the refrigerator 8 extends to the lower end of the bottom of the box body 2. The heat dissipation surface of the refrigerator 8 is provided with a radiator. A liquid filling port 13 is provided at the top of the box body 2, and a threaded cover 6 is provided at the top of the liquid filling port 13.

[0020] The present technical solution can deliver the coolant in the coolant storage tank 9 into the second connecting pipe 5 through the pump 12, and the coolant can be delivered to the annular cooling tank 14 by the second connecting pipe 5. The coolant in the annular cooling tank 14 can be made to flow back into the coolant storage tank 9 by the first connecting pipe 4, thereby forming a cooling circulation system, which can take away the heat generated by the sealing device during operation, ensure that the magnetic fluid is always within its appropriate operating temperature range, and ensure that the magnetic and rheological properties of the magnetic fluid are stable. The refrigerator 8 can be powered on for cooling, thereby reducing the temperature of the coolant in the coolant storage tank 9 and avoiding the cooling effect being affected by excessively high coolant temperature. Example

[0021] On the basis of embodiment 1, the present invention is as follows Figure 1-4 As shown, a liquid level sensor 10 is fixedly connected to the bottom of the inner cavity of the coolant storage tank 9, a wireless transmitter 3 is fixedly connected to the side of the box body 2, the output end of the liquid level sensor 10 is electrically connected to the input end of the wireless transmitter 3, and the output end of the wireless transmitter 3 is electrically connected to the input end of the external display.

[0022] This technical solution can detect the liquid level height in the coolant storage tank 9 through the liquid level sensor 10, and transmit the detection data to the wireless transmitter 3. The wireless transmitter 3 can be used to transmit the detection data to an external display, making it convenient for people to view the liquid level height and add coolant in time.

[0023] The working principle of the present utility model is: the coolant in the coolant storage tank 9 can be sent to the second connecting pipe 5 by the pump 12, and the coolant can be sent to the annular cooling tank 14 by the second connecting pipe 5. The coolant in the annular cooling tank 14 can be made to flow back to the coolant storage tank 9 by the first connecting pipe 4, thereby forming a cooling circulation system, which can take away the heat generated by the sealing device during operation, ensure that the magnetic fluid is always within its appropriate operating temperature range, and ensure that the magnetic and rheological properties of the magnetic fluid are stable. The refrigerator 8 can be powered on for cooling, thereby reducing the temperature of the coolant in the coolant storage tank 9 and avoiding the coolant temperature being too high to affect the cooling effect. The liquid level height in the coolant storage tank 9 can be detected by the liquid level sensor 10, and the detection data can be transmitted to the wireless transmitter 3. The wireless transmitter 3 can be used to transmit the detection data to an external display, making it convenient for people to view the liquid level height and to add coolant in time.

[0024] It is important to note that the configuration and arrangement of the present application, as shown in various exemplary embodiments, are illustrative only. Although only a few embodiments are described in detail in this disclosure, those reading this disclosure will readily appreciate that numerous modifications are possible (e.g., variations in the size, dimensions, structure, shape, and proportions of various components, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without materially departing from the novel teachings and advantages of the subject matter described herein. For example, components shown as integrally formed may be constructed from multiple parts or components, the positions of components may be inverted or otherwise altered, and the nature, number, or position of discrete components may be modified or changed. Therefore, all such modifications are intended to be encompassed within the scope of this invention. The order or sequence of any process or method steps may be altered or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover structures described herein that perform the function described, and not only structural equivalence but also equivalent structures. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0025] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the scope of protection of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A magnetic fluid sealing device for a brake disc brake housing, comprising a housing body (1), characterized in that: The inner cavity of the shell body (1) is provided with an annular cooling groove (14), the left and right sides of the shell body (1) are fixedly connected to the box body (2), the inner cavity of the box body (2) is provided with a coolant storage groove (9), the bottom of the inner cavity of the coolant storage groove (9) is fixedly connected to a pump (12), the water outlet of the pump (12) is fixedly connected to a second connecting pipe (5), the other end of the second connecting pipe (5) is fixedly connected to the front end of the top of the annular cooling groove (14), the top of the annular cooling groove (14) is fixedly connected to a first connecting pipe (4), the other end of the first connecting pipe (4) is fixedly connected to the top of the box body (2), the lower part of the inner cavity of the box body (2) is provided with a cooling groove (11), and the inner cavity of the cooling groove (11) is installed with a refrigerator (8).

2. The magnetic fluid sealing device for a brake disc brake housing according to claim 1, characterized in that: A liquid level sensor (10) is fixedly connected to the bottom of the inner cavity of the coolant storage tank (9), and a wireless transmitter (3) is fixedly connected to the side of the box body (2). The output end of the liquid level sensor (10) is electrically connected to the input end of the wireless transmitter (3), and the output end of the wireless transmitter (3) is electrically connected to the input end of the external display.

3. The magnetic fluid sealing device for a brake disc brake housing according to claim 1, characterized in that: The left and right ends of the inner cavity of the shell body (1) are provided with hydraulic grooves (18), the side of the shell body (1) is provided with a clamping plate (7), the left and right sides of the inner cavity of the shell body (1) are provided with an annular groove (15), the inner cavity of the annular groove (15) is fixedly connected to a magnet (16), and the inner cavity of the shell body (1) is provided with a magnetic fluid body (17).

4. The magnetic fluid sealing device for a brake disc brake housing according to claim 1, characterized in that: The heat dissipation surface of the refrigerator (8) extends to the lower end of the bottom of the box body (2), and a radiator is provided on the heat dissipation surface of the refrigerator (8).

5. The magnetic fluid sealing device for a brake disc brake housing according to claim 1, characterized in that: A liquid injection port (13) is provided on the top of the box body (2), and a threaded cover (6) is provided on the top of the liquid injection port (13).