Novel plastic magnetic sensing magnet for brake system and implementation method of novel plastic magnetic sensing magnet

A brake system and plastic magnet technology, applied in the direction of permanent magnets, magnets, magnetic objects, etc., can solve problems such as product cracking, achieve the effects of increasing product torque, avoiding loose connections, and ensuring safety

Pending Publication Date: 2022-02-01
HENGDIAN GRP DMEGC MAGNETICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing products combining plastic magnets and inserts are very prone to product cracking.

Method used

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  • Novel plastic magnetic sensing magnet for brake system and implementation method of novel plastic magnetic sensing magnet
  • Novel plastic magnetic sensing magnet for brake system and implementation method of novel plastic magnetic sensing magnet
  • Novel plastic magnetic sensing magnet for brake system and implementation method of novel plastic magnetic sensing magnet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] see Figure 1-5 , the present invention provides the following technical solutions: a new type of plastic magnetic sensor magnet for braking systems, including a gear 1, a copper ring 2 and a magnetic ring 3, wherein the gear 1 is an iron component, and the gear 1 is connected to the side of the copper ring 2 , the copper ring 2 is embedded inside the magnetic ring 3, the magnetic ring 3 is formed by injection molding, and the magnetic ring 3 is magnetized by radial multi-pole.

[0027] Specifically, one end of the gear 1 is integrally formed with a connecting shaft, and the connecting shaft is embedded in the copper ring 2 . The connecting shaft is in interference fit with the copper ring 2.

[0028] By adopting the above-mentioned technical scheme and the setting of the copper ring 2, it is effective to prevent the metal parts from being easily cracked under severe high and low temperature conditions after injection molding of the plastic magnetic material. The coppe...

Embodiment 2

[0032] The difference between this embodiment and Embodiment 1 lies in: specifically, helical teeth are provided on the circumference of the gear 1 .

[0033] By adopting the above technical solution, the helical gear cooperates with the external components to realize the transmission of the driving force of the motor.

[0034] Further, the implementation method of a novel plastic magnetic sensing magnet for a braking system according to the present invention includes the following steps:

[0035] (1), the gear 1 and the copper ring 2 are press-fitted by a press;

[0036] (2) Put the copper ring 2 into the magnetic ring 3 and connect it by injection molding.

[0037] In summary, the present invention effectively prevents the metal parts from being easily cracked under severe high and low temperature conditions through the arrangement of the copper ring 2 after injection molding, and uses the copper ring 2 as a buffer to make the magnetic ring 3 and the The gear 1 is not in d...

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Abstract

The invention discloses a novel plastic magnetic sensing magnet for a brake system. The novel plastic magnetic sensing magnet comprises a gear, a copper ring and a magnetic ring; the gear is an iron component; the gear is connected to the side surface of the copper ring;the copper ring is embedded in the magnetic ring; and the magnetic ring is formed through injection molding. According to the novel plastic magnetic sensing magnet for the brake system and the implementation method of the novel plastic magnetic sensing magnet for the brake system, through the copper ring, the situation that a metal piece and a plastic magnetic material are prone to cracking under the severe high and low temperature conditions after injection molding combination is effectively prevented; and the copper ring is used for buffering, the magnetic ring does not make direct contact with the gear the safety of the brake system is ensured; the copper ring and the magnetic ring are connected through injection molding, knurling patterns and / or grooves are formed in the outer surface of the copper ring, connection looseness between the copper ring and the magnetic ring is avoided, and the product torque is increased; and helical teeth are arranged on the circumference of the gear, and the helical teeth are matched with external parts to achieve transmission of motor driving force.

Description

technical field [0001] The invention belongs to the technical field of plastic magnetic sensing, and in particular relates to a novel plastic magnetic sensing magnet for a brake system and a realization method thereof. Background technique [0002] With the development of automobile technology, the miniaturization and precision of parts and components is an inevitable development trend. The new generation of braking system requires a transmission plastic magnetic rotor with multi-pole magnetic rings due to the compact structure layout. [0003] At present, the existing types of sensing magnets in the market have relatively single functions, only have the function of signal sensing, and cannot simultaneously transmit signals and have power output. This kind of rotor combines a metal insert in the center of the multi-pole magnetic ring, which must ensure that the magnet does not crack under the condition of high-speed rotation inside the motor. [0004] However, the existing...

Claims

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Application Information

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IPC IPC(8): H02K1/06H02K1/27H01F7/02
CPCH02K1/06H02K1/27H01F7/0231
Inventor杨龙王应扬
OwnerHENGDIAN GRP DMEGC MAGNETICS CO LTD