CN219627525U - Quick diversion sealing piece for high-rotation-speed shaft of new energy automobile motor - Google Patents

Quick diversion sealing piece for high-rotation-speed shaft of new energy automobile motor Download PDF

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Publication number
CN219627525U
CN219627525U CN202320264986.8U CN202320264986U CN219627525U CN 219627525 U CN219627525 U CN 219627525U CN 202320264986 U CN202320264986 U CN 202320264986U CN 219627525 U CN219627525 U CN 219627525U
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ring
shaft
conductive
arc
new energy
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王华利
陆红华
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Woogi New Materials Shanghai Co ltd
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Woogi New Materials Shanghai Co ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/64Electric machine technologies in electromobility

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Abstract

The utility model discloses a quick flow guide sealing piece of a high-rotation-speed shaft of a new energy automobile motor, which comprises an outer framework, a gasket, a sealing component and a flow guide component, wherein the sealing component comprises an inner framework and a lip which are at least attached to one side of the flow guide component and are made of metal materials, the flow guide component comprises a conductive ring and conductive silica gel, the conductive silica gel is filled between the conductive ring and the inner framework, the outer framework outer ring is tightly matched with a motor shell, the inner ring of the outer framework is tightly matched with the gasket to form electric conduction, the inner ring of the conductive ring is provided with an arc-shaped electric brush which contacts the outer ring of the shaft, and both side surfaces of the conductive ring are provided with flow guide ring grooves for injecting liquid conductive silica gel.

Description

Quick diversion sealing piece for high-rotation-speed shaft of new energy automobile motor
Technical Field
The utility model relates to the technical field of new energy automobile accessories, in particular to a fast flow guiding sealing piece of a high-rotation-speed shaft of a new energy automobile motor.
Background
At present, the development progress of the three-electricity of the new energy automobile is rapid, and the research and development investment of a plurality of new energy automobile enterprises for motors, batteries and electric control is continuously increased, wherein the most important motor technology becomes the technical problem to be overcome when the current technology is urgent, and the new energy automobile motors are divided into water-cooled motors and oil-cooled motors in principle.
The structure of the water-cooled motor is very similar to that of an internal combustion engine, and cooling liquid is circulated to a water channel in the motor shell, so that heat of the motor is taken away, cost can be effectively saved, and the motor and a battery can share a water-cooled system.
The oil cooling motor adopts the gearbox oil of the traditional fuel oil vehicle, the oil is non-conductive and non-magnetic, and can be directly poured into the motor to perform more efficient heat exchange with the rotor and the stator winding of the motor, and the heat dissipation effect is better than that of a water cooling system.
Because the motor technical obstacle of the current new energy automobile exists in motor power, torque and rotating speed limits, the highest power mastered at present is difficult to break through 300KW, and the maximum torque is difficult to break through 500Nm, wherein the technical difficulty to be broken through is stability, reliability and safety of a motor main shaft at high rotating speed.
The technical problem that we have grasped is that the motor spindle at high rotational speeds can generate shaft currents due to static and dynamic friction of various stator and rotor components inside the motor. In particular to a high-voltage 800V new energy automobile power assembly, and the shaft current is particularly obvious. The generation of shaft current can corrode peripheral parts, and the stability of the working state of a bearing sleeved on the main shaft is directly affected, so that the working condition stability of the motor under high rotating speed, high power and high torque is affected. The higher the power, the greater the shaft current and the more dangerous.
For solving the problem of shaft current, various schemes are discussed, designed and demonstrated by a plurality of vehicle enterprises, namely, a metal electric brush is matched at a bearing position to guide out the current generated by a shaft at a high rotating speed and release the current, but the actual flow guiding effect of the metal electric brush can be limited by a water cooling scheme or an oil cooling scheme adopted by a motor, and the metal electric brush can play a role only by being isolated from water or oil; the metal brush can also wear the shaft, and the larger the pressing contact force is, the more the rotating speed of the shaft is affected; and the shaft can quickly heat, so that the heat in the whole motor power assembly is increased, the heat exchange of the power assembly is affected, and the working condition is unstable.
Disclosure of Invention
The purpose of the utility model is that: in order to solve the problems that the shaft current generated by a motor of a new energy automobile can corrode peripheral parts of the shaft, influence the stability of the working state of accessories such as bearings sleeved on a main shaft and the like, and further influence the stability, reliability and safety of the working condition of the motor under high rotation speed, high power and high torque, a steam fitting capable of rapidly guiding and releasing the shaft current is required to be designed, and water or oil in a water-cooling or oil-cooling system can be blocked, so that a sealing effect is achieved; when the motor is electrically connected with the shaft in a contact manner, a tiny external force is applied to the periphery of the shaft, the sliding friction force is greatly reduced, the rotating speed of the shaft is not affected, the energy consumption of the motor is effectively reduced, the working stability and the safety of the motor are ensured, the motor power can be increased by the power supply of the motor enterprise, and the rotating speed, the power and the torque technical parameters of the motor of the new energy automobile can be released by one step.
The technical scheme adopted for solving the problems is as follows:
the utility model provides a fast water conservancy diversion sealing member of high rotational speed axle of new energy automobile motor, includes the ectoskeleton of being prepared by the metal material, the packing ring of being prepared by the metal material, by ectoskeleton and packing ring closely seal assembly and water conservancy diversion subassembly that compress tightly, seal assembly includes inner skeleton and lip of being prepared by the metal material at least laminating in water conservancy diversion subassembly one side, water conservancy diversion subassembly includes conducting ring, liquid conductive silica gel after solidifying, conductive silica gel packs and encapsulates between conducting ring and inner skeleton to increase the area of contact of electric conduction, improves the conductivity,
the outer framework, the gasket, the inner framework, the lip edge and the conducting ring are all annular and sleeved on the high-rotation-speed shaft,
the outer ring of the outer framework is tightly matched with the motor shell, the inner ring of the outer framework is tightly matched with the gasket in an interference fit manner, and the outer ring and the gasket are electrically conducted,
the other side of the inner framework is closely attached to the inner wall of the outer framework or the inner wall of the gasket, the current guided by the conducting ring is rapidly conducted to the outer framework or the gasket, the shaft current is rapidly grounded and released by the outer framework and the gasket,
the inner framework and the lip are integrally formed by compression molding, the cross section of the innermost ring of the lip is in a folded shape, the position of the folded point is a lip tip, the lip tip is attached to the outer ring of the shaft to seal water of a water cooling system or oil of an oil cooling system outside the lip,
the conducting ring inner ring is provided with an arc-shaped electric brush which contacts with the shaft outer ring, the arc-shaped electric brush contacts with the shaft in an inclined posture and keeps a tiny clamping force so as to keep electric conduction, at least one circle of flow guiding ring groove for injecting liquid conducting silica gel is formed in two side surfaces of the conducting ring, the flow guiding ring groove is arranged on the conducting ring inner ring, and the electric conduction distance between the conducting ring and the shaft is shortened in a mode of being closer to a lip edge.
Further, the lip edge is made of rubber or silica gel.
Further, the arc-shaped electric brush is made of resin conductive materials, has the functions of wear resistance, high temperature resistance and self lubrication when in direct contact with the shaft, and has certain elasticity, so that the arc-shaped electric brush is kept in contact with the shaft.
Further, an annular groove is formed in the outermost ring of the lip edge, a spring ring is sleeved in the annular groove and used for applying radial pressing force to the lip edge, the lip tip is firmly attached to the shaft, and external water or oil is effectively prevented from entering the diversion assembly.
Further, the guide ring grooves on the two sides of the conductive ring are communicated with each other, so that conductivity is further improved.
Further, the multiple rings of guide ring grooves on the same side of the conductive ring are mutually communicated so as to further improve conductivity.
Further, the arc-shaped contact rings are arranged in an annular array on the contact cambered surfaces of the arc-shaped electric brushes and the shaft, and the sections of the arc-shaped contact rings are semicircular and are used for directly contacting the shaft and directly guiding shaft current.
Preferably, a communication groove is arranged between the arc-shaped electric brush and the flow guiding ring groove, a plurality of conducting holes are arranged on the arc-shaped electric brush and the shaft in an annular array, the conducting holes are communicated with the communication groove, and liquid conducting silica gel is filled in the conducting holes and the communication groove, so that the conducting holes, the communication groove and the flow guiding ring groove are filled with the liquid conducting silica gel, and the whole body is formed after heating and curing, thereby being beneficial to guiding shaft current to the inner framework directly through the conducting holes of the arc-shaped electric brush, and guiding the shaft current to the motor shell through the inner framework and the outer framework which are made of metal materials to be grounded and released.
The beneficial effects of the utility model are as follows:
1. the rapid diversion sealing piece of the high-rotation-speed shaft of the new energy automobile motor solves the problems that shaft current generated by the new energy automobile motor at high rotation speed corrodes peripheral parts of the shaft, the stability of the working state of accessories such as a bearing sleeved on a main shaft is affected, and the stability, the reliability and the safety of the working condition of the motor at high rotation speed, high power and high torque are further affected; solving the technical problems of front edges of various global large power assembly vehicle enterprises at present, belonging to the problems which need to be solved in a short time, otherwise, the mass production is difficult and the potential safety hazard exists;
2. the sealing element can separate water or oil in a water-cooling or oil-cooling system to play a sealing effect;
3. the designed arc-shaped electric brush contacts the shaft in an inclined posture, and keeps a tiny clamping force so as to keep electrical conduction, a tiny external force is applied to the periphery of the shaft, the sliding friction force is greatly reduced, the rotating speed of the shaft is not influenced, the energy consumption of the motor is effectively reduced, the working stability and the safety of the motor are ensured, and the power can be safely increased by a vehicle enterprise so as to increase the power of the motor;
4. the liquid conductive silica gel is adopted to make up for the defect of larger resistivity of the resin conductive material, so that the conductive contact area between the conductive ring and the inner skeleton is increased, the current is more easily led out, the technical requirement on the conductive ring resin conductive material is reduced, and the cost is reduced;
5. the mode of shortening the electric conduction distance between the liquid solidified conductive silica gel and the shaft as much as possible is utilized, so that the shaft current can be quickly guided and released, the shaft current is instantly released, and the working stability of the motor under high power can be improved;
6. in a motor which does not need oil sealing and water sealing, the diversion component can be singly adopted to be in contact fit with a high-rotation-speed shaft, so that the shaft current can be quickly released, and the diversion component can be used for quickly radiating;
7. the arc-shaped contact rings are arranged on the arc-shaped electric brush and the contact arc surface of the shaft in an annular array, can be directly contacted with the shaft, directly guide shaft current, reduce dragging torque and reduce energy consumption of the shaft at high rotating speed.
Drawings
FIG. 1 is a cross-sectional view of a fast flow guiding seal for a high speed shaft of a new energy automobile motor of example 1;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a cross-sectional view of a fast deflector seal for a high speed shaft of a new energy automobile motor of example 2;
FIG. 4 is a cross-sectional view of a fast deflector seal for a high speed shaft of a new energy automobile motor of example 3;
FIG. 5 is a cross-sectional view of a fast deflector seal for a high speed shaft of a new energy automobile motor of example 4;
FIG. 6 is a cross-sectional view of a fast deflector seal for a high speed shaft of a new energy automobile motor of example 5;
FIG. 7 is a partial enlarged view at B in FIG. 6;
FIG. 8 is a cross-sectional view of a fast deflector seal for a high speed shaft of a new energy automobile motor of example 6;
FIG. 9 is a perspective view of the conductive ring of example 6;
FIG. 10 is an enlarged view of a portion of FIG. 9 at C;
FIG. 11 is a cross-sectional view of a fast deflector seal for a high speed shaft of a new energy automobile motor of example 7;
the device comprises a 1-outer framework, a 2-gasket, a 3-spring ring, a 4-right lip edge, a 5-right inner framework, a 6-conducting ring, 7-conducting silica gel, an 8-left lip edge, a 9-left inner framework, a 10-lip edge, an 11-arc brush, a 12-conducting hole, a 13-communication groove, a 14-arc contact ring, a 15-through hole, a 16-flow guiding ring groove and a 17-shaft.
Detailed Description
The technical solution of the present utility model will be clearly and completely described in a plurality of embodiments by way of description with reference to the accompanying drawings.
Example 1
Referring to fig. 1 and 2, the embodiment discloses a motor especially suitable for new energy automobilesDouble-sided oil cooling systemThe quick diversion sealing piece of the oil sealing high-rotation-speed shaft 17 comprises an outer framework 1 made of a metal material, a gasket 2 made of the metal material, a sealing component and a diversion component, wherein the sealing component and the diversion component are tightly pressed by the outer framework 1 and the gasket 2, and the sealing component comprises an inner framework and lips which are symmetrically attached to two sides of the diversion component and made of the metal material, and comprises a left inner framework 9, a left lip 8, a right inner framework 5 and a right lip 4; the flow guide assembly comprises a conductive ring 6 and conductive silica gel 7 after liquid curing, wherein the conductive silica gel 7 is filled and packaged between the conductive ring 6 and the inner framework to increase the contact area of electrical conduction, realize conductive bonding, reduce contact impedance and improve conductivity, and has a bonding function, so that displacement is not easy to occur under the working condition of high rotation speed of the shaft.
The outer framework 1, the gasket 2, the inner framework, the lip edge and the conducting ring 6 are all annular and sleeved on the high-rotation-speed shaft 17, the outer ring of the outer framework 1 is tightly matched with the motor casing, and the inner ring of the outer framework 1 is tightly matched with the gasket 2 in an interference manner, so that electric conduction is formed.
The other side of the inner framework is closely attached to the inner wall of the outer framework 1 or the inner wall of the gasket 2, current guided by the conducting ring 6 is rapidly conducted to the outer framework 1 or the gasket 2, and shaft current is rapidly grounded and released by the outer framework 1 and the gasket 2.
The inner framework and the lip are integrally formed through compression molding, the lip is made of rubber materials, the cross section of the innermost ring of the lip is in a folded shape, the position of a folding point is a lip tip 10, the lip tip 10 is attached to the outer ring of the shaft 17 so as to seal oil of an oil cooling system outside the lip, an annular groove is formed in the outermost ring of the lip, a spring ring 3 is sleeved in the annular groove and used for applying radial pressing force to the lip, the lip tip 10 is firmly attached to the shaft 17, and external oil is effectively prevented from entering the diversion assembly.
The inner ring of the conducting ring 6 is provided with an arc-shaped electric brush 11 which contacts with the outer ring of the shaft 17, the arc-shaped electric brush 11 contacts with the shaft 17 in an inclined posture, and a tiny clamping force is kept, so that electrical conduction is kept, a larger sliding friction force is not generated, and the heating value is extremely small; the two side surfaces of the conducting ring 6 are provided with the flow guiding ring grooves 16 for injecting the liquid conducting silica gel 7, the flow guiding ring grooves 16 on the two side surfaces are mutually communicated by virtue of the through holes 15, and the flow guiding ring grooves 16 are arranged on the inner ring of the conducting ring 6, so that the electric conduction distance between the conducting ring 6 and the shaft 17 is shortened in a mode of being closer to a lip edge, and under the condition of basically constant temperature, the flow guiding ring comprises the following formula:
R=ρL/S (1-1)
wherein: ρ is the resistivity, L is the length of the material, and S is the area. It can be seen that the resistance of the material is proportional to the length L of the material and inversely proportional to the cross-sectional area S thereof, so that the shorter the length L of the conductive silicone 7, the lower the resistance, further improving the conductivity as the guide ring groove 16 is closer to the shaft 17.
In a further embodiment, the arc-shaped electric brush 11 is made of a resin conductive material, has the functions of wear resistance, high temperature resistance and self lubrication when being in direct contact with the shaft 17, and has certain elasticity, so that the arc-shaped electric brush 11 is kept in contact with the shaft 17.
The preferred implementation scheme is that a communication groove 13 is arranged between the arc-shaped electric brush 11 and the diversion ring groove 16, a plurality of conducting holes 12 are annularly arranged on the arc-shaped electric brush 11 and the shaft 17 in a contact arc surface, the conducting holes 12 are communicated with the communication groove 13, and the conducting holes 12 and the communication groove 13 are filled with liquid conducting silica gel 7, so that the conducting holes 12, the communication groove 13 and the diversion ring groove 16 are filled with the liquid conducting silica gel 7 and are formed into a whole after being heated and solidified, the liquid conducting silica gel 7 is adopted to make up for the defect of larger resistivity of the resin conducting material, the conducting contact area between the conducting ring 6 and the inner framework is increased, the current is led out more easily, the technical requirement on the resin conducting material of the conducting ring 6 is reduced, and the cost is reduced; the shaft current is directly guided to the inner framework through the conducting holes 12 of the arc-shaped electric brush 11 and is guided to the motor shell by the inner framework and the outer framework 1 made of metal to be grounded and released, so that the problems that the shaft current generated under the high rotating speed of the motor of the new energy automobile corrodes peripheral parts of the shaft 17, the stability of the working state of accessories such as a bearing 17 sleeved on the main shaft 17 is affected, and the stability, the reliability and the safety of the working condition of the motor under the high rotating speed, high power and high torque are further affected are solved.
Example 2
Referring to FIG. 3, the embodiment discloses a motor especially suitable for new energy automobilesDouble-sided oil cooling systemThe difference between the fast guiding sealing element of the high rotation speed shaft 17 for sealing oil and the technical scheme disclosed in the embodiment 1 is that: the two side surfaces of the conductive ring 6 are provided with the guide ring grooves 16 for injecting the liquid conductive silica gel 7, the guide ring grooves 16 on the two side surfaces are not communicated with each other, the guide ring grooves 16 are arranged on the inner ring of the conductive ring 6, the electric conduction distance between the conductive ring 6 and the shaft 17 is shortened in a mode of being closer to a lip, the conductivity can be improved, and the technical effect after implementation is equivalent to that of the embodiment 1.
Example 3
Referring to FIG. 4, the embodiment discloses a motor especially suitable for new energy automobilesOil sealing of single-side oil cooling systemThe only difference from the technical solution disclosed in example 2 is that: the sealing assembly comprises an inner framework and a lip edge which are attached to the right side of the diversion assembly and are made of metal materials, the sealing assembly comprises a right inner framework 5 and a right lip edge 4, liquid conductive silica gel 7 is filled between a conductive ring 6 and an outer framework 1, a communication groove 13 is arranged between an arc-shaped electric brush 11 and a diversion ring groove 16 of the embodiment, a plurality of conductive holes 12 are annularly arranged in a contact arc surface annular array of the arc-shaped electric brush 11 and a shaft 17, all the conductive holes 12 and the communication groove 13 are filled with the liquid conductive silica gel 7, the conductive holes 12, the communication groove 13 and the diversion ring groove 16 are filled with the liquid conductive silica gel 7, and the sealing assembly is heated and solidified to form a whole, so that shaft current is directly and quickly guided to the inner framework through the conductive holes 12 of the arc-shaped electric brush 11, and is guided to a motor shell by the inner framework of the metal materials and the outer framework 1 to be grounded and released, the implemented technical effect is equivalent to that of the embodiment 2, and the space outside the arc-shaped electric brush 11 is favorable for circulation of heat dissipationPreventing the increase of resistance and improving conductivity.
Example 4
Referring to FIG. 5, the embodiment discloses a motor especially suitable for new energy automobilesNo water cooling or oil cooling systemThe only difference from the technical solution disclosed in example 3 is that: there is not seal assembly, and conducting ring 6 both sides face and outer skeleton 1 and packing ring 2 closely laminate, and the laminating face all is filled with liquid conductive silica gel 7 after solidifying, direct conducting hole 12 through arc brush 11 with the axle electric current is directed to the inner skeleton fast to guide motor shell ground release by inner skeleton, the outer skeleton 1 of metal material, and arc brush 11 both sides space circulation is favorable to the heat dissipation, improves the conductivity.
Example 5
Referring to FIGS. 6 and 7, the present embodiment discloses a motor particularly suitable for a new energy automobileDouble-sided oil cooling systemThe difference between the fast guiding sealing element of the high rotation speed shaft 17 for sealing oil and the technical scheme disclosed in the embodiment 1 is that: the communication groove 13 is not arranged between the arc-shaped electric brush 11 and the flow guide ring groove 16, the conductive holes 12 are not arranged in an annular array of the contact cambered surfaces of the arc-shaped electric brush 11 and the shaft 17, but the arc-shaped contact rings 14 are arranged in an annular array of the contact cambered surfaces of the arc-shaped electric brush 11 and the shaft 17, and referring to fig. 9 and 10, the cross section of each arc-shaped contact ring 14 is semicircular and is used for directly contacting the shaft 17 to directly guide shaft current, drag torque is reduced, heat is reduced, and loss of output power of a motor is reduced. In the high-speed rotation state of the shaft 17, the arc-shaped contact ring 14 always keeps contact with the shaft 17, the electric connection is stable and reliable, the guiding release of shaft current can be kept at any time, and the conductivity is still good.
Example 6
Referring to FIG. 8, the embodiment discloses a motor especially suitable for new energy automobilesSingle-side oil cooling systemThe difference between the fast guiding sealing element of the high rotation speed shaft 17 for sealing oil and the technical scheme disclosed in the embodiment 5 is that: the sealing component comprises an inner framework and a lip which are attached to the right side of the flow guiding component and are made of metal materials, and comprises a right inner framework 5 and a right lip4, the technical effect after implementation is equivalent to that of the embodiment 5, and the space outside the arc-shaped electric brush 11 is circulated, so that the heat dissipation is facilitated, and the electric conductivity is still good.
Example 7
Referring to FIG. 11, the present embodiment discloses a motor particularly suitable for new energy automobilesDouble-sided oil cooling systemThe difference between the fast guiding sealing element of the high rotation speed shaft 17 for sealing oil and the technical scheme disclosed in the embodiment 1 is that: the arc-shaped electric brush 11 is different from the rest of the conducting ring 6 in material, and the rest is made of rubber, so that the requirement for resin conducting materials can be greatly reduced, and the cost is reduced. The metal support ring 18 is further arranged on the outermost ring, under the condition that the liquid conductive silica gel 7 is filled and packaged in the communication groove 13, the conductive hole 12, the flow guiding ring groove 16 and the through hole 15, the metal support ring 18, the conductive ring 6, the arc-shaped electric brush 11 and the liquid cured conductive silica gel 7 are pressed into a whole by using a compression molding process, when the arc-shaped electric brush 11 is in contact with the high-rotating-speed shaft 17, the conductive silica gel 7 in the conductive hole 12 rapidly guides shaft current and is transmitted and released to an outer framework, the electric connection is stable and reliable, the guiding and the releasing of the shaft current are facilitated to be kept constantly, and the electric conductivity is still good.
The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the embodiments described above, and various changes, modifications, substitutions and alterations can be made therein by those having ordinary skill in the art without departing from the spirit of the present utility model, the scope of which is defined by the appended claims and their equivalents.

Claims (10)

1. The utility model provides a new energy automobile motor high rotational speed axle's fast water conservancy diversion sealing member, includes the outer skeleton of being prepared by metal material, the packing ring of being prepared by metal material, by the tight seal assembly and the water conservancy diversion subassembly that compress tightly of outer skeleton and packing ring, its characterized in that: the sealing component comprises an inner framework and a lip edge which are at least attached to one side of the flow guiding component and are made of metal materials, the flow guiding component comprises a conductive ring and conductive silica gel which is solidified in liquid state and is used for increasing the contact area to improve the conductivity, the conductive silica gel is filled between the conductive ring and the inner framework,
the other side of the inner framework is closely attached to the inner wall of the outer framework or the inner wall of the gasket, the current guided by the conducting ring is rapidly conducted to the outer framework or the gasket, the shaft current is rapidly grounded and released by the outer framework and the gasket,
the conducting ring inner ring is provided with an arc-shaped electric brush which contacts with the shaft outer ring, the arc-shaped electric brush contacts with the shaft in an inclined posture, a tiny clamping force is kept, the conducting ring is kept electrically conductive, at least one circle of flow guiding ring groove for injecting liquid conducting silica gel is formed in two side surfaces of the conducting ring, and the flow guiding ring groove is arranged on the conducting ring and is close to the inner ring of the shaft.
2. The rapid diversion seal for a high-speed shaft of a new energy automobile motor according to claim 1, wherein: the outer framework, the gasket, the inner framework, the lip edge and the conducting ring are all annular and sleeved on the high-rotation-speed shaft, the outer framework outer ring is tightly matched with the motor casing, and the outer framework inner ring is tightly matched with the gasket in an interference manner to form electric conduction.
3. The rapid diversion seal for a high-speed shaft of a new energy automobile motor according to claim 1, wherein: the inner framework and the lip are integrally formed through compression molding, the cross section of the innermost ring of the lip is in a folded line shape, the position of a folding point is a lip tip, and the lip tip is attached to the shaft outer ring.
4. The rapid diversion seal for a high-speed shaft of a new energy automobile motor according to claim 1, wherein: the lip edge is made of rubber or silica gel materials, and the arc-shaped electric brush is made of resin conductive materials.
5. The rapid diversion seal for a high-speed shaft of a new energy automobile motor according to claim 1, wherein: the outermost ring of the lip edge is provided with an annular groove, and a spring ring is sleeved in the annular groove.
6. The rapid diversion seal for a high-speed shaft of a new energy automobile motor according to claim 1, wherein: the guide ring grooves on the two sides of the conductive ring are mutually communicated.
7. The rapid diversion seal for a high-speed shaft of a new energy automobile motor according to claim 1, wherein: and the multiple diversion ring grooves on the same side of the conducting ring are mutually communicated.
8. The rapid diversion seal for a high-speed shaft of a new energy automobile motor according to claim 1, wherein: the arc-shaped electric brush and the contact cambered surface of the shaft are annularly arrayed and provided with arc-shaped contact rings, and the section of each arc-shaped contact ring is semicircular.
9. The rapid diversion seal for a high-speed shaft of a new energy automobile motor according to claim 1, wherein: a communication groove is formed between the arc-shaped electric brush and the flow guide ring groove, a plurality of conductive holes are formed in the arc-shaped electric brush and the shaft in an annular array manner, the conductive holes are communicated with the communication groove, and liquid conductive silica gel is filled in the conductive holes and the communication groove.
10. The utility model provides a new energy automobile motor high rotational speed axle's quick water conservancy diversion sealing member, includes outer skeleton, water conservancy diversion subassembly and the packing ring of being prepared by metal material by the preparation of metal material of closely laminating in proper order, its characterized in that:
the flow guiding component comprises a conductive ring and conductive silica gel which is solidified in liquid state and is used for increasing the contact area to improve the conductivity, the conductive silica gel is filled on two side surfaces of the conductive ring,
the current guided by the conducting ring is rapidly conducted to the outer skeleton or the gasket, and the shaft current is rapidly grounded and released by the outer skeleton and the gasket,
the conducting ring inner ring is provided with an arc-shaped electric brush which contacts with the shaft outer ring, the arc-shaped electric brush contacts with the shaft in an inclined posture, a tiny clamping force is kept, the conducting ring is kept electrically conductive, the two side surfaces of the conducting ring are provided with guide ring grooves for injecting liquid conducting silica gel, and the guide ring grooves are arranged on the conducting ring and close to the inner ring of the shaft.
CN202320264986.8U 2023-02-20 2023-02-20 Quick diversion sealing piece for high-rotation-speed shaft of new energy automobile motor Active CN219627525U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320264986.8U CN219627525U (en) 2023-02-20 2023-02-20 Quick diversion sealing piece for high-rotation-speed shaft of new energy automobile motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320264986.8U CN219627525U (en) 2023-02-20 2023-02-20 Quick diversion sealing piece for high-rotation-speed shaft of new energy automobile motor

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Publication Number Publication Date
CN219627525U true CN219627525U (en) 2023-09-01

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