High-protection-grade permanent magnet driving motor for vehicle
By introducing an intercepting mesh and an adjustable shell structure into the permanent magnet drive motor, the problems of permanent magnet detachment and thermal expansion are solved, achieving safe protection and stable operation of the motor, and improving the motor's protection level and service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-11
- Publication Date
- 2026-03-27
AI Technical Summary
When a permanent magnet drive motor is subjected to a violent impact, the internal permanent magnets are prone to detachment, leading to secondary damage and failure of surrounding components, posing a safety hazard. At the same time, the difference in thermal expansion under high temperature conditions causes uneven air gaps inside the motor, affecting operational stability and lifespan.
It adopts an interception net and adjustable shell structure. The interception net consists of an elastic net and magnetic strips. The elastic net intercepts detached parts, and the magnetic strips attract permanent magnets. The adjustable shell adjusts the internal space of the motor through limit blocks and springs to adapt to changes in thermal expansion.
It effectively prevents flying parts from damaging surrounding components, limits the range of motion, buffers thermal expansion forces, ensures stable motor operation, extends lifespan, and reduces maintenance costs.
Smart Images
Figure CN224053986U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the motor field, more specifically, especially relate to high protection level car -used permanent magnet drive motor. BACKGROUND
[0002] Permanent magnet drive motor is the core component of the vehicle drive system, has the function of self -regulation temperature control according to the temperature of self -operation, can real -time adaptation temperature demand under different working conditions of motor, avoids the running state of motor to appear over -cooling or over -heating, effectively maintains the stable performance of motor work, prolongs the overall service life of permanent magnet motor simultaneously, is the key device that new energy car realizes efficient, reliable drive.
[0003] When the motor is broken by violent impact of external force, the internal permanent magnet is easy to fall off and scatter, and the fallen permanent magnet is easy to be adsorbed on other parts around the vehicle due to its strong magnetic force, which not only causes secondary damage to the permanent magnet itself, but also interferes with or damages the normal work of the surrounding parts, causes the fault of the whole vehicle drive system, and there is significant use safety hazard. UTILITY MODEL CONTENTS
[0004] In order to solve the above technical problems, the purpose and effect of the high protection level car -used permanent magnet drive motor of the utility model are achieved by the following specific technical means:
[0005] Its structure includes base, cover shell, intercepting net, mounting rod, temperature control permanent magnet motor and adjustable shell, the cover shell is connected with the base, the intercepting net is installed between the two bases, the mounting rod is auxiliary base fixed installation, the temperature control permanent magnet motor is installed in the adjustable shell;
[0006] The intercepting net includes elastic net, connecting seat and magnetic attraction strip, the elastic net is connected between the magnetic attraction strips, the connecting seat is fixed to the outer surface of the base, the magnetic attraction strip is buckled between the two connecting seats, and the magnetic attraction strip realizes quick butt joint with the connecting seat through buckle cooperation.
[0007] As a further improvement of the utility model, the magnetic attraction strip includes a mounting seat, an elastic strip, a magnetic attraction block and an elastic joint, the magnetic attraction block is fixed to the outer surface of the elastic joint, the elastic strip is installed in the elastic joint, the elastic joint is connected with the mounting seat at both ends, and the elastic strip supports the elastic joint.
[0008] As a further improvement of the utility model, the temperature control permanent magnet motor is a permanent magnet motor that can intelligently control temperature, the cover shell and the adjustable shell play a protective role on the temperature control permanent magnet motor, and the cover shell plays an external dustproof protection on the temperature control permanent magnet motor.
[0009] As a further improvement of the utility model, the magnetic attraction strips are evenly distributed in a circular shape in groups of two, the elastic net is connected and fixed in a net shape by rubber material, the auxiliary magnetic attraction strips are fixed to the outer surface of the base by the connecting seat, and the group distribution of the magnetic attraction strips makes the elastic net bear force evenly.
[0010] As a further improvement of the utility model, the elastic joint is made of rubber material, the magnetic attraction blocks have a magnetic attraction effect, the elastic strip is made of elastic steel plate material, the magnetic attraction blocks are evenly and spacedly distributed on the outer surface of the elastic joint, and the elastic strip can drive the elastic joint to reset after the external force is removed.
[0011] As a further improvement of the utility model, the adjustable shell comprises a limiting block, a limiting groove, a protective shell and a spring, the limiting block and the protective shell are in an integrated structure, the limiting block is located in the limiting groove and is movable, the spring is installed between the limiting block and the inner side surface of the limiting groove, and the limiting groove plays a guiding and limiting role on the movement track of the limiting block.
[0012] As a further improvement of the utility model, the protective shell is divided into three sections and movably connected, the spring is provided in two groups, the limiting block is in an inverted T-shaped structure, and the multi-section structure of the protective shell is suitable for the adjustment requirement of different extension amplitudes.
[0013] Compared with the prior art, the utility model has the following beneficial effects:
[0014] Firstly, when the permanent magnet motor is impacted by external force, the elastic net in the interception net can rely on the flexibility and net structure of the rubber material to realize large-area and overall interception of the disintegrated and fallen parts in the motor, effectively block the fallen parts from splashing to other key parts around the motor, avoid secondary damage, meanwhile, the magnetic attraction blocks on the magnetic attraction strips can precisely adsorb and assist in fixing the fallen permanent magnet material parts through the magnetic attraction characteristics, prevent the fallen parts from loosening, moving and colliding to cause secondary wear, limit the activity range, further improve the reliability of interception and protection, ensure the operation safety of the parts around the motor and the whole vehicle, and reduce the subsequent maintenance cost.
[0015] Secondly, when the motor is in a high-temperature environment such as summer noon outdoor exposure, and continuously runs at high speed to generate a large amount of heat, form a thermal expansion difference and a thermal expansion gas, through the self-adaptive adjusting structure of the adjustable shell, the limiting block is driven by the protective shell to smoothly slide along the limiting groove, and then the installation space in the temperature control permanent magnet motor is flexibly adjusted, the thermal expansion force is effectively buffered and released, the thermal expansion force is prevented from being inwardly extruded to the temperature control permanent magnet motor body, not only the air gap in the motor body can be uniformly guaranteed, the problems such as motor vibration, sudden increase of noise, bearing wear and even stator rotor scraping caused by air gap deviation can be prevented, but also the damage of high-temperature thermal stress to core components such as a coil and a permanent magnet in the motor body can be reduced, the service life of the motor is prolonged, and meanwhile, the stable operation performance and temperature control precision of the motor under high-temperature and high-load working conditions can be ensured. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a structure schematic view of the high-protection-grade vehicle permanent magnet drive motor.
[0017] Figure 2 It is a local structure schematic view of the high-protection-grade vehicle permanent magnet drive motor.
[0018] Figure 3 It is a structure schematic view of the intercepting net.
[0019] Figure 4 It is a local structure schematic view of the intercepting net.
[0020] Figure 5 It is a structure schematic view of the magnetic attraction strip.
[0021] Figure 6 It is a structure schematic view of the adjustable shell.
[0022] Figure 7 It is a sectional structure schematic view of the adjustable shell.
[0023] In the figure: base-1, cover shell-2, intercepting net-3, mounting rod-4, temperature control permanent magnet motor-5, adjustable shell-6, elastic net-31, connection seat-32, magnetic attraction strip-33, mounting seat-21, elastic strip-22, magnetic attraction block-23, elastic joint-24, limiting block-61, limiting groove-62, protective shell-63, spring-64. DETAILED DESCRIPTION
[0024] The utility model will be further described below in combination with the drawings:
[0025] Example 1: as shown in the accompanying drawings Figure 1 to the accompanying drawings: Figure 5
[0026] The utility model provides a high protection level car uses permanent magnet drive motor, its structure includes base 1, machine cover shell 2, intercept net 3, installation rod 4, temperature control permanent magnet motor 5, adjustable shell 6, machine cover shell 2 is connected with base 1, intercept net 3 is installed between two bases 1, installation rod 4 assists base 1 fixed mounting, temperature control permanent magnet motor 5 is installed in adjustable shell 6 inside,
[0027] Intercept net 3 includes elastic net 31, link seat 32, magnetic attraction strip 33, elastic net 31 is connected between magnetic attraction strip 33, link seat 32 is fixed on the outer surface of base 1, magnetic attraction strip 33 is buckled and connected between two link seats 32, magnetic attraction strip 33 realizes quick butt joint with link seat 32 through buckle cooperation, elastic net 31 stretches and contracts adaptively along with the deformation of magnetic attraction strip 33.
[0028] Among them, magnetic attraction strip 33 includes mounting seat 21, elastic strip 22, magnetic attraction block 23, elastic section 24, magnetic attraction block 23 is fixed on the outer surface of elastic section 24, elastic strip 22 is installed in the inside of elastic section 24, elastic section 24 is connected with mounting seat 21 at both ends, elastic strip 22 plays a supporting role to elastic section 24, and the two elastic strips 22 are a group and symmetrically distributed.
[0029] Among them, temperature control permanent magnet motor 5 is the permanent magnet motor of intelligent temperature control, machine cover shell 2 and adjustable shell 6 play the protection function to temperature control permanent magnet motor 5, machine cover shell 2 plays the external dustproof protection to temperature control permanent magnet motor 5, adjustable shell 6 can adjust the internal space adaptively along with the thermal expansion and cold shrink of temperature control permanent magnet motor 5.
[0030] Among them, magnetic attraction strip 33 is uniformly distributed in a circular shape and is a group of eight, elastic net 31 is connected and fixed in a net shape with rubber material, link seat 32 assists magnetic attraction strip 33 to be fixed on the outer surface of base 1, the grouping distribution of magnetic attraction strip 33 makes elastic net 31 force evenly, and the net structure of elastic net 31 realizes the double functions of ventilation and interception.
[0031] Among them, elastic section 24 is rubber material, magnetic attraction block 23 has magnetic attraction effect, elastic strip 22 is elastic steel plate material, magnetic attraction block 23 is uniformly and intervally distributed on the outer surface of elastic section 24, elastic strip 22 can drive elastic section 24 to reset after external force is cancelled, and the interval distribution of magnetic attraction block 23 ensures that the magnetic attraction effect is uniform.
[0032] The specific use mode and effect of the embodiment are as follows:
[0033] The utility model discloses a flexible deformation of the elastic net 31 can be adapted to the deformation trend of the machine base 1 and the adjustable shell 6 synchronously, avoids causing self damage due to rigid resistance and collision, if the impact is bigger, when the internal temperature control permanent magnet motor 5 breaks open and the parts fall off, the elastic net 31 can rely on the flexibility and net structure of the rubber material to realize the large area interception of the falling parts, prevent it from penetrating the interception structure and splashing outward, and the elastic section 24 can assist the impact force of the falling parts by the elastic deformation characteristics of the rubber material, further improve the interception effect, in the process, the elastic strip 22 always plays the rigid support and deformation reset effect to the elastic section 24, guarantees the structural integrity and interception stability of the magnetic attraction strip 33, and the magnetic attraction block 23 on the magnetic attraction strip 33 can be fixed by the magnetic attraction characteristics, effectively limit the activity range of the falling parts, ensure that all falling parts are intercepted in the controllable area, avoid the impact and damage of other parts around the motor or cause safety hazards.
[0034] Example 2: as shown in the accompanying Figure 6 to the accompanying Figure 7 , as shown:
[0035] Among them, the adjustable shell 6 includes limiting block 61, limiting groove 62, protective shell 63, spring 64, the limiting block 61 and the protective shell 63 are integrated structure, the limiting block 61 is located inside the limiting groove 62 and can move, the spring 64 is installed between the limiting block 61 and the inner side surface of the limiting groove 62, the limiting groove 62 plays a guiding and limiting role to the activity track of the limiting block 61, and the spring 64 provides elastic buffer force for the movement of the limiting block 61.
[0036] Among them, the protective shell 63 is divided into three sections and is movably connected, the spring 64 is provided with two groups, the limiting block 61 is in inverted T-shaped structure, the multi-section structure of the protective shell 63 is adapted to the adjustment requirement of different expansion amplitudes, and the movement of the limiting block 61 drives the protective shell 63 to realize expansion adjustment.
[0037] The specific use mode and effect of the embodiment are as follows:
[0038] In the utility model, when the permanent magnet motor is in the summer noon open-air sun exposure working condition and continues high-speed operation, the thermal expansion difference of each part of the motor is caused due to the difference of thermal expansion coefficient, at this moment, the limiting block 61 is driven to slide along the limiting groove 62 by the expansion force of the protective shell 63, the spring 64 is synchronously formed flexible extrusion, the internal space of the protective shell 63 is adjusted adaptively through the elastic contraction and reset of the spring 64, the size change caused by the thermal expansion difference is effectively compensated, the machine base is prevented from pressing the motor body inward, the uniformity of the air gap in the motor is guaranteed, and stable operation of the motor under high temperature and high load working condition is ensured.
[0039] The technical scheme of the utility model, or the technical scheme inspired by the technical scheme of the utility model, designs similar technical scheme, and achieves the above technical effect, and falls into the protection range of the utility model.
Claims
1. A high protection level vehicle permanent magnet drive motor, which structure comprises a base (1), a cover shell (2), an intercept net (3), a mounting rod (4), a temperature control permanent magnet motor (5), an adjustable shell (6), the cover shell (2) is connected with the base (1), the intercept net (3) is installed between two bases (1), the mounting rod (4) assists the base (1) to be fixedly installed, the temperature control permanent magnet motor (5) is installed inside the adjustable shell (6), characterized in that: the intercept net (3) comprises an elastic net (31), a connecting seat (32), and a magnetic attraction strip (33), the elastic net (31) is connected between the magnetic attraction strips (33), the connecting seat (32) is fixed to the outer surface of the base (1), and the magnetic attraction strip (33) is buckled between two connecting seats (32).
2. The high protection level permanent magnet drive motor for vehicle according to claim 1, characterized in that: The magnetic attraction strip (33) comprises a mounting seat (21), an elastic strip (22), a magnetic attraction block (23), and an elastic joint (24), the magnetic attraction block (23) is fixed to the outer surface of the elastic joint (24), the elastic strip (22) is installed inside the elastic joint (24), and the elastic joint (24) is connected with the mounting seat (21) at both ends.
3. The high protection level permanent magnet drive motor for vehicle according to claim 1, characterized in that: The temperature control permanent magnet motor (5) is a permanent magnet motor capable of intelligently controlling temperature, and the cover shell (2) and the adjustable shell (6) protect the temperature control permanent magnet motor (5).
4. The high protection level permanent magnet drive motor for automotive vehicles according to claim 1, characterized in that: The magnetic attraction strip (33) is provided with eight magnetic attraction strips, two of which are a group and are evenly distributed in a circular shape, the elastic net (31) is connected and fixed in a net shape made of rubber material, and the connecting seat (32) assists the magnetic attraction strip (33) to be fixed to the outer surface of the base (1).
5. The high protection level permanent magnet drive motor for automotive applications according to claim 2, characterized in that: The elastic joint (24) is made of rubber material, the magnetic attraction block (23) has a magnetic attraction effect, the elastic strip (22) is made of elastic steel plate material, and the magnetic attraction blocks (23) are evenly and spacedly distributed on the outer surface of the elastic joint (24).
6. The high protection level permanent magnet drive motor for automotive applications according to claim 1, characterized in that: The adjustable shell (6) comprises a limiting block (61), a limiting groove (62), a protective shell (63), and a spring (64), the limiting block (61) and the protective shell (63) are an integrated structure, the limiting block (61) is located inside the limiting groove (62) and is movable, and the spring (64) is installed between the inner side surfaces of the limiting block (61) and the limiting groove (62).
7. The high protection level permanent magnet drive motor for automotive vehicles according to claim 6, characterized in that: The protective shell (63) is divided into three sections and is movably connected, the spring (64) is provided with two groups, and the limiting block (61) is a reverse T-shaped structure.