Aluminum-nickel-cobalt magnetic steel for power-assisted steering machine

Abstract

The utility model relates to the technical field of annular magnetic steel, in particular to aluminum-nickel-cobalt magnetic steel for a power-assisted steering machine, which comprises a motor shaft and is characterized in that a rotary connecting block is mounted on the outer wall of the motor shaft, a rotary connecting block is mounted on the outer wall of the rotary connecting block, a rotor structural body is mounted on the outer wall of the rotary connecting block, and a rotor is mounted on the outer wall of the rotor structural body. A magnetic steel mounting groove is formed in an outer disc of the outer circle of the rotor structure body, annular clamping grooves are formed in the two ends of the magnetic steel mounting groove, a magnetic steel block is mounted in the magnetic steel mounting groove, heat conduction silica gel sheets are mounted on the upper side and the lower side of the magnetic steel block, and heat conduction cooling assemblies are mounted in notches. According to the utility model, the structure is simple, the practicability is high, the installation and disassembly of the magnetic steel block are more convenient through the arrangement of the annular clamping groove, the magnetic steel block can be effectively cooled through the dual heat conduction and cooling of the heat conduction and cooling assembly and the heat conduction silica gel sheet, and the service life of the magnetic steel block is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of annular magnetic steel, in particular to an aluminum-nickel-cobalt magnetic steel for a power steering machine. Background Art

[0002] The magnets used in power steering are mainly made of permanent magnetic materials, generally including NdFeB magneto magnets, samarium-cobalt motor magnets and AlNiCo motor magnets. NdFeB magnets are divided into sintered NdFeB and bonded NdFeB. Generally, motors use sintered NdFeB magnets, which have extremely high magnetic properties and can absorb objects six hundred and forty times their own weight. Due to their excellent magnetic properties, they are called the king of magnets. However, the existing power steering magnets have defects in their heat dissipation structure and heat dissipation function, and the heat dissipation effect is not ideal. After a period of use, local overheating will occur, affecting the normal operation of the power steering motor and reducing the practicality of the motor magnets.

[0003] A Chinese patent discloses a magnetic steel structure and a motor including the magnetic steel structure (publication number: CN 217063398 U), which includes a weak magnetic steel having an outer arc surface for fixing to the inner wall of a casing, and an inner arc surface of the weak magnetic steel is embedded with a strong magnetic steel. However, the heat dissipation structure and heat dissipation function of this magnetic steel structure are defective, and the heat dissipation effect is not ideal. After being used for a period of time, local overheating will occur, affecting the normal operation of the power steering motor and reducing the practicality of the motor magnetic steel. Therefore, an aluminum nickel cobalt magnet for a power steering machine is needed. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the existing magnetic steel structure heat dissipation structure and heat dissipation function in the prior art, the heat dissipation effect is not ideal, and local overheating will occur after a period of use, affecting the normal operation of the power steering motor and reducing the practicality of the motor magnetic steel. An aluminum nickel cobalt magnet for a power steering machine is proposed.

[0005] The technical solution adopted by the utility model to solve its technical problems is: the aluminum-nickel-cobalt magnet for a power steering machine described in the utility model includes a motor shaft, characterized in that: the motor shaft is characterized in that: both ends of the top and bottom of the motor shaft are provided with flat key grooves, the outer wall of the motor shaft is installed with a rotating connection block, the outer wall of the rotating connection block is installed with a rotor structure, the motor shaft, the rotating connection block and the rotor structure are all coaxially and concentrically arranged, the outer circle and outer disk of the rotor structure are installed with magnetic steel installation grooves, and the number of the magnetic steel installation grooves There are 8 to 10 of them and they are all arranged adjacent to each other at equal intervals. Annular grooves are provided at both ends of the magnetic steel installation groove. A magnetic steel block is installed in the magnetic steel installation groove. Thermal conductive silicone sheets are installed on the upper and lower sides of the magnetic steel block. A stator structure is installed on the outer wall of the rotor structure. A stator slot is provided on the inner disk of the inner circle of the stator structure. The number of stator slots is 8 to 10 and they are all arranged adjacent to each other at equal intervals. The stator slot is a trapezoidal structure and one end is connected with a notch. The number of the notches is 8 to 10, and a thermal conductive cooling component is installed in each of the notches.

[0006] Preferably, the heat-conducting cooling component includes a heat-conducting ring, which has 8 to 10 segments and is in an annular structure. The heat-conducting rings are evenly distributed in the slots at equal intervals. Both ends of the heat-conducting rings penetrate part of the stator structure and are connected to the magnetic steel blocks at adjacent ends. By setting the heat-conducting rings, heat can be circulated and conducted to the heat-conducting copper tube.

[0007] Preferably, a heat-conducting copper tube is connected to one end at the center of the bottom of the heat-conducting ring. The interior of the heat-conducting copper tube is a hollow structure. A water-cooling liquid pipe is connected to the bottom of the heat-conducting copper tube. A clamping sleeve is installed on the outer wall of the water-cooling liquid pipe. The clamping sleeve cooperates with the slot. By setting an interference fit between the clamping sleeve and the slot, the water-cooling liquid pipe can be fixed in the slot.

[0008] Preferably, the magnetic steel block is made of aluminum-nickel-cobalt alloy and has a ring structure.

[0009] Preferably, the outer wall of the stator structure is provided with an anti-oxidation layer and a wear-resistant coating associated with the anti-oxidation layer. The service life of the stator structure can be effectively extended by providing the anti-oxidation layer and the wear-resistant coating.

[0010] Preferably, the outer disk of the outer ring of the stator structure body is provided with a U-shaped groove, the number of the U-shaped grooves is 6 to 8, and mounting holes are provided between each adjacent U-shaped groove, and the mounting holes are arranged at equal intervals on the edge of the outer disk of the stator structure body. By providing the mounting holes, it is convenient to install the stator structure in the supporting equipment.

[0011] The utility model is beneficial in that:

[0012] The utility model has a simple structure and high practicality. The annular slot is provided to facilitate the installation and disassembly of the magnetic steel block. The dual thermal conductivity and cooling of the thermal conductivity and cooling component and the thermal conductivity silicone sheet can effectively cool the magnetic steel block and extend the service life of the magnetic steel block. The anti-oxidation layer and the wear-resistant coating can effectively extend the service life of the stator structure and protect its surface from damage. The aluminum nickel cobalt magnet with this technical indicator is used as a power steering machine, which has a small size and light weight, saves electricity, and saves non-ferrous metals such as copper. The aluminum nickel cobalt magnet for the power steering machine has the advantages of saving resources, high efficiency, small size, low noise, etc., which meets customer needs and expands the market competitiveness of the company's products. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 It is a schematic diagram of the structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the rotor structure of the utility model.

[0016] Figure 3 For this utility model Figure 2 Enlarged view of I.

[0017] Figure 4 For this utility model Figure 2 Enlarged view of II.

[0018] Figure 5 For this utility model Figure 2 Enlarged view of middle III.

[0019] Figure 6 This is a top view of the structure of the utility model.

[0020] Figure 7 This is a diagram of the internal structure of the wear-resistant coating and anti-oxidation layer of the utility model.

[0021] In the figure: 1. motor shaft; 2. flat keyway; 3. stator slot; 4. mounting hole; 5. rotating connection block; 6. stator structure; 7. U-shaped slot; 8. notch; 9. rotor structure; 10. magnetic steel mounting slot; 11. thermal conductive silicone sheet; 12. magnetic steel block; 13. annular slot; 14. thermal conductive ring; 15. thermal conductive copper tube; 16. water cooling liquid tube; 17. clamping sleeve; 100. anti-oxidation layer; 101. wear-resistant coating. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0023] See also Figure 1-7 As shown, an aluminum-nickel-cobalt magnet for a power steering machine includes a motor shaft 1, characterized in that: the motor shaft 1 is characterized in that: both ends of the top and bottom of the motor shaft 1 are provided with flat keyways 2, a rotating connection block 5 is installed on the outer wall of the motor shaft 1, a rotor structure 9 is installed on the outer wall of the rotating connection block 5, the motor shaft 1, the rotating connection block 5 and the rotor structure 9 are all coaxially and concentrically arranged, a magnetic steel installation groove 10 is installed on the outer circle and outer disk of the rotor structure 9, the number of the magnetic steel installation grooves 10 is 8 to 10 and they are all arranged adjacent to each other at equal intervals, and an annular clamp is provided at both ends of the magnetic steel installation groove 10 Slot 13, a magnetic steel block 12 is installed in the magnetic steel installation slot 10, and thermal conductive silicone sheets 11 are installed on the upper and lower sides of the magnetic steel block 12. The thermal conductive silicone sheets 11 are common products on the market, have good thermal conductivity, and can be purchased directly. The outer wall of the rotor structure 9 is installed with a stator structure 6, and the inner circle and inner disk of the stator structure 6 are provided with stator slots 3. The number of the stator slots 3 is 8 to 10 and they are adjacently arranged at equal intervals. The stator slot 3 is a trapezoidal structure and one end is connected with a slot 8. The number of the slots 8 is 8 to 10, and the slots 8 are all installed with thermal conductive cooling components.

[0024] In this embodiment, the heat-conducting cooling component includes a heat-conducting ring 14, which is an annular metal body or metal ring. The heat-conducting ring 14 has 8 to 10 segments and is in an annular structure. The heat-conducting ring 14 is evenly distributed in the slot 8 at equal intervals. Both ends of the heat-conducting ring 14 penetrate part of the stator structure 6 and are connected to the magnetic steel blocks 12 at the adjacent two ends. By setting the heat-conducting ring 14, heat can be circulated and conducted to the heat-conducting copper tube 15.

[0025] In this embodiment, a heat-conducting copper tube 15 is connected to one end of the bottom center of the heat-conducting ring 14. The interior of the heat-conducting copper tube 15 is a hollow structure. The heat-conducting copper tube 15 is a common product on the market and can be purchased directly. The inner tube of the heat-conducting copper tube 15 is a pure water vacuum environment created by boiling water. The heat-conducting copper tube 15 is made of a copper tube, and the inner tube is a pure water vacuum environment created by boiling water. As long as there is a temperature difference between the inside and the outside of an object, heat will spontaneously transfer from the high temperature to the low temperature, thereby quickly changing the pressure and adjusting the drop. At low temperatures, a water-cooling liquid pipe 16 is connected to the bottom of the heat-conducting copper tube 15. The water-cooling liquid pipe 16 is a common product on the market and can be purchased directly. A clamping sleeve 17 is installed on the outer wall of the water-cooling liquid pipe 16. By connecting the heat-conducting copper tube 15 with the water-cooling liquid pipe 16 and introducing heat into the water-cooling liquid pipe 16, the water-cooling liquid pipe 16 cools the heat-conducting copper tube 15 to maintain balance and prevent overheating. The clamping sleeve 17 cooperates with the slot 8. By setting the clamping sleeve 17 to have an interference fit with the slot 8, the water-cooling liquid pipe 16 can be fixed in the slot 8.

[0026] In this embodiment, the magnetic steel block 12 is made of aluminum-nickel-cobalt alloy and has a ring structure. The technical indicators of the aluminum-nickel-cobalt alloy are as follows:

[0027] (1) Chemical composition: (%)

[0028] Al: 8.1~8.3, Ni:14.1~14.3, Co:25.2~25.5, Cu:2.0~2.1 and the rest Fe

[0029] Trace elements: Ti: 0.21~0.25, S: 0.15~0.18, C: 0.11~0.15;

[0030] (2) Magnetic properties: Br = 12300-12800Gs, (BH) max ≥ 5.5MGOe

[0031] Hcb>670 Oe Hcj>680 Oe;

[0032] By using the AlNiCo magnets with this technical indicator as power steering gear, which is small in size and light in weight, saves electricity, and saves copper and other non-ferrous metals, the AlNiCo magnets for power steering gear have the advantages of saving resources, high efficiency, small size, and low noise, which can meet customer needs and expand the market competitiveness of the company's products.

[0033] In this embodiment, the outer wall of the stator structure 6 is provided with an anti-oxidation layer 100 and a wear-resistant coating 101 associated with the anti-oxidation layer 100. The anti-oxidation layer 100 and the wear-resistant coating 101 are both common coating materials on the market and can be purchased directly. By providing the anti-oxidation layer 100 and the wear-resistant coating 101, the service life of the stator structure 6 can be effectively extended.

[0034] In this embodiment, the outer ring and outer disk of the stator structure 6 are provided with U-shaped grooves 7, the number of the U-shaped grooves 7 is 6 to 8, and a mounting hole 4 is provided between each adjacent U-shaped groove 7. The mounting holes 4 are arranged at equal intervals on the edge of the outer disk of the stator structure 6. By providing the mounting holes 4, it is convenient to install the stator structure 6 in the supporting equipment.

[0035] The implementation principle of this embodiment is as follows: first, install a number of magnetic steel blocks 12 into the magnetic steel installation groove 10. When the equipment motor rotates, the heat generated can be conducted to the bottom heat-conducting copper tube 15 through each section of the heat-conducting ring 14. The inner tube of the heat-conducting copper tube 15 is a pure water vacuum environment created by boiling water. As long as there is a temperature difference between the inside and the outside of an object, heat will spontaneously transfer from the high temperature to the low temperature, which will quickly change the pressure and adjust the temperature to reduce the temperature, thereby introducing the generated heat into the water-cooling liquid pipe 16. The water-cooling liquid pipe 16 absorbs and balances the heat of the heat-conducting copper tube 15 through its own cooling characteristics, thereby cooling the magnetic steel block 12 and extending the service life of the overall structure.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An AlNiCo magnet for a power steering machine, comprising a motor shaft (1), characterized in that: The motor shaft (1) is characterized in that: both ends of the top and bottom of the motor shaft (1) are provided with flat key grooves (2); a rotating connection block (5) is installed on the outer wall of the motor shaft (1); a rotor structure (9) is installed on the outer wall of the rotating connection block (5); the motor shaft (1), the rotating connection block (5) and the rotor structure (9) are all coaxially and concentrically arranged; a magnetic steel installation groove (10) is installed on the outer circle and outer disk of the rotor structure (9); the number of the magnetic steel installation grooves (10) is 8 to 10 and they are all arranged adjacent to each other at equal intervals; and both ends of the magnetic steel installation groove (10) are provided with An annular clamping groove (13), a magnetic steel block (12) is installed in the magnetic steel installation groove (10), and thermal conductive silicone sheets (11) are installed on both the upper and lower sides of the magnetic steel block (12); a stator structure (6) is installed on the outer wall of the rotor structure (9), and stator slots (3) are provided on the inner circle inner disk of the stator structure (6), the number of the stator slots (3) is 8 to 10 and they are all arranged adjacent to each other at equal intervals, the stator slots (3) are of a trapezoidal structure and one end is connected to a notch (8), the number of the notches (8) is 8 to 10, and a thermal conductive cooling component is installed in each of the notches (8).

2. The AlNiCo magnet for power steering according to claim 1, characterized in that: The heat conduction and cooling component comprises a heat conduction ring (14), the heat conduction ring (14) has 8 to 10 segments and is in an annular structure, the heat conduction ring (14) is evenly distributed in the slot (8) at equal intervals, and both ends of the heat conduction ring (14) penetrate part of the stator structure (6) and are connected to the magnetic steel blocks (12) at the adjacent two ends.

3. The AlNiCo magnet for power steering according to claim 2, characterized in that: A heat-conducting copper tube (15) is connected to one end at the center of the bottom of the heat-conducting ring (14); the interior of the heat-conducting copper tube (15) is a hollow structure; the bottom of the heat-conducting copper tube (15) is connected to a water-cooling liquid tube (16); a clamping sleeve (17) is installed on the outer wall of the water-cooling liquid tube (16); the clamping sleeve (17) cooperates with the notch (8).

4. The AlNiCo magnet for power steering according to claim 1, characterized in that: The magnetic steel block (12) is made of aluminum-nickel-cobalt alloy and has a ring structure.

5. The AlNiCo magnet for power steering according to claim 1, characterized in that: The outer wall of the stator structure (6) is provided with an anti-oxidation layer (100) and a wear-resistant coating (101) associated with the anti-oxidation layer (100).

6. The AlNiCo magnet for power steering according to claim 1, characterized in that: The outer ring and outer disk of the stator structure (6) are provided with U-shaped grooves (7), the number of the U-shaped grooves (7) is 6 to 8, and mounting holes (4) are provided between each adjacent U-shaped groove (7), and the mounting holes (4) are arranged at equal intervals on the edge of the outer disk of the stator structure (6).

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