A motor protection housing

Abstract

The present invention discloses a motor protective housing, which relates to the technical field of motors for electric tricycles. The motor protective housing includes: a support ring, on which the motor to be installed on the electric tricycle is fixed; arc-shaped support bars, there are a plurality of the arc-shaped support bars, and the plurality of arc-shaped support bars are all arranged on one side of the support ring; a movable rotating cylinder, the movable rotating cylinder is movably arranged on the plurality of arc-shaped support bars; a buffer cylinder, the buffer cylinder is arranged outside the movable rotating cylinder; helical tooth parts, a plurality of the helical tooth parts are arranged outside the buffer cylinder, and the plurality of helical tooth parts are circumferentially and uniformly distributed along the axis of the buffer cylinder; a torsion spring, one end of the torsion spring is fixed on the support ring, and the other end of the torsion spring is matched with the buffer cylinder; the present invention enhances the protection effect on the motor of the electric tricycle and helps to effectively reduce or avoid damage to the motor of the electric tricycle.

Description

Technical Field

[0001] The present invention relates to the technical field of electric tricycle motors, and specifically to a motor protective housing. Background Art

[0002] The motor is one of the core components of an electric tricycle. The housings of most existing electric tricycle motors can only provide a simple covering function and cannot effectively resist impacts. Although there are some protective housings such as boxes or frames provided outside the motors of electric tricycles, their buffer and energy absorption effects are average and cannot play a good protective role when being impacted. Summary of the Invention

[0003] The purpose of the present invention is to provide a motor protective housing, which can enhance the protective effect, thereby effectively reducing or avoiding damage to the electric tricycle motor.

[0004] To solve the above technical problems, the present invention provides the following technical solution: A motor protective housing includes: a support ring, on which the electric tricycle motor to be installed is fixed; a plurality of arc-shaped support bars, which are all arranged on one side of the support ring; a movable rotating cylinder, which is movably arranged on the plurality of arc-shaped support bars; a buffer cylinder, which is arranged outside the movable rotating cylinder; a helical tooth member, on the outside of the buffer cylinder, there are a plurality of the helical tooth members, and the plurality of helical tooth members are circumferentially and evenly distributed along the axis of the buffer cylinder; a torsion spring, one end of the torsion spring is fixed on the support ring, the other end of the torsion spring is matched with the buffer cylinder, and the torsion spring is sleeved outside the electric tricycle motor to be installed.

[0005] Further, the helical tooth member includes: a connecting portion, which is arranged outside the buffer cylinder and is inclined; an arc portion, which connects the connecting portion; an extending portion, one end of the arc portion away from the connecting portion extends linearly to form the extending portion.

[0006] Further, each of the arc-shaped support bars is provided with a chute, and the movable rotating cylinder is fitted in each of the chutes.

[0007] Further, one end of the buffer cylinder away from the support ring is provided with a protruding portion, and an opening groove is arranged on the protruding portion, and one end of the torsion spring is fitted in the opening groove.

[0008] Further, it further includes: a folding spring piece, each end of the arc-shaped support bar away from the support ring is provided with the folding spring piece; a support seat, each folding spring piece is provided with the support seat; a nylon contact head, each support seat is provided with the nylon contact head, and the nylon contact head contacts the outer wall of one of the arc portions.

[0009] Further, it further includes: a rear cover plate, the rear cover plate is connected to all support seats, and a plurality of through holes are evenly distributed on the rear cover plate.

[0010] Further, a plurality of first long holes are penetratingly arranged on the movable rotating cylinder.

[0011] Further, a plurality of second long holes are penetratingly arranged on the buffer cylinder, and the plurality of second long holes and the plurality of helical tooth members are alternately arranged.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows.

[0013] 1. When the helical tooth member impacts an external object, the collision impact is reduced through the deformation of the helical tooth member and the buffer cylinder; meanwhile, it is convenient to cause the buffer cylinder and the movable rotating cylinder to rotate, achieving an energy absorption effect; and when the buffer cylinder rotates, it will cause the torsion spring to deform, further enhancing the buffer energy absorption effect.

[0014] 2. The rear cover plate is provided to protect the tail end of the motor of the electric tricycle. When the rear cover plate impacts an external object, the folding spring piece deforms, facilitating the reduction of the impact; and when the nylon contact head presses against the arc portion, the nylon contact head and the arc portion can deform, and it is also easy to cause the buffer cylinder and the movable rotating cylinder to rotate, effectively reducing the collision impact.

[0015] 3. The torsion spring, the movable rotating cylinder and the buffer cylinder are all sleeved outside the motor of the electric tricycle, achieving a multi-layer protection effect on the motor of the electric tricycle; in addition, the present invention also provides a rear cover plate to effectively protect the motor of the electric tricycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification, and are used together with the embodiments of the present invention to explain the present invention, and do not constitute a limitation to the present invention.

[0017] Figure 1 It is a schematic diagram of the overall structure of Embodiment 1 of the present invention.

[0018] Figure 2 It is a schematic diagram of the overall structure of Embodiment 1 of the present invention from another angle.

[0019] Figure 3 It is a schematic diagram of the installation of the movable rotating cylinder of Embodiment 1 of the present invention.

[0020] Figure 4 It is a schematic diagram of the arrangement of the arc-shaped support bars of Embodiment 1 of the present invention.

[0021] Figure 5 It is a schematic diagram of the structure of the buffer cylinder and the helical tooth member of Embodiment 1 of the present invention.

[0022] Figure 6 It is another perspective structural schematic diagram of the buffer cylinder and the helical gear part of the first embodiment of the present invention.

[0023] Figure 7 It is the overall structural schematic diagram of the second embodiment of the present invention.

[0024] Figure 8 It is the installation schematic diagram of the support seat, folding spring piece and nylon contact head of the second embodiment of the present invention.

[0025] Figure 9 It is the cooperation schematic diagram of the nylon contact head and the helical gear part of the second embodiment of the present invention.

[0026] Figure 10 It is the layout schematic diagram of the nylon contact heads of the second embodiment of the present invention.

[0027] Figure 11 It is the cooperation schematic diagram of the rear cover and the support seat of the second embodiment of the present invention.

[0028] Explanation of reference numerals: 1, support ring; 2, arc support bar; 21, chute; 3, buffer cylinder; 31, protrusion; 311, opening groove; 32, helical gear part; 321, connecting part; 322, arc part; 323, extension part; 33, second long hole; 4, movable rotating cylinder; 41, first long hole; 5, torsion spring; 6, rear cover plate; 7, folding spring piece; 8, support seat; 9, nylon contact head. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Embodiment 1

[0031] Please refer to Figures 1 - 3, the present invention provides a technical solution: a motor protection shell, including a support ring 1, the electric tricycle motor to be installed (hereinafter referred to as the motor) is fixed on the support ring 1. Specifically, one end of the motor can be fixed on the support ring 1 by bolts or screws, and a part of the motor passes through the support ring 1; on one end face of the support ring 1, there are three arc-shaped support bars 2, and a movable rotating cylinder 4 is jointly arranged on the three arc-shaped support bars 2. The movable rotating cylinder 4 can rotate along its own axis, and the three arc-shaped support bars 2 are circumferentially evenly distributed along the axis of the movable rotating cylinder 4; an outer fixed sleeve of the buffer cylinder 3 is arranged outside the movable rotating cylinder 4. The buffer cylinder 3 and the movable rotating cylinder 4 are coaxial, and a plurality of helical tooth parts 32 are arranged on the outer ring surface of the buffer cylinder 3. The plurality of helical tooth parts 32 are circumferentially evenly distributed along the axis of the buffer cylinder 3.

[0032] The motor protection shell further includes a torsion spring 5. One end of the torsion spring 5 is fixed on the support ring 1, the other end of the torsion spring 5 is cooperatively arranged on the buffer cylinder 3, the torsion spring 5 is sleeved outside the motor, and the movable rotating cylinder 4 is sleeved outside the middle part of the torsion spring 5.

[0033] Please refer to Figures 3 - 4 , each arc-shaped support bar 2 is provided with a chute 21, and the three chutes 21 are circumferentially evenly distributed along the axis of the movable rotating cylinder 4; the movable rotating cylinder 4 is cooperatively arranged in the three chutes 21, so that the movable rotating cylinder 4 can rotate around its own axis.

[0034] Please refer to Figure 2 , Figure 5 and Figure 6 , the helical tooth part 32 includes a connecting part 321 arranged on the outer ring surface of the buffer cylinder 3. One end of the connecting part 321 away from the buffer cylinder 3 is provided with an arc part 322, and one end of the arc part 322 away from the connecting part 321 extends linearly to form an extension part 323. The helical tooth part 32 and the buffer cylinder 3 are integrally formed structures, and the materials of the buffer cylinder 3 and the helical tooth part 32 can adopt polyethylene, so that the buffer cylinder 3 and the helical tooth part 32 have good elasticity and impact resistance; the connecting part 321 is inclined, and as Figure 6 shown, the front end of the connecting part 321 at the topmost end of the buffer cylinder 3 is higher than the rear end of the connecting part 321; and, the plurality of helical tooth parts 32 that are circumferentially evenly distributed just cover the outside of the buffer cylinder 3.

[0035] One end of the buffer cylinder 3 away from the support ring 1 is provided with a protrusion 31, and an opening groove 311 is arranged on the protrusion 31. One end of the torsion spring 5 away from the support ring 1 is clamped and cooperated in the opening groove 311.

[0036] Refer to again Figure 2 and Figure 3, a plurality of first long holes 41 are provided through the movable drum 4, and the plurality of first long holes 41 are circumferentially distributed along the axis of the movable drum 4; a plurality of second long holes 33 are provided through the buffer drum 3, and the plurality of second long holes 33 and the plurality of helical members 32 are alternately arranged; by providing the first long holes 41 and the second long holes 33, the heat dissipation of the motor is not affected.

[0037] Please refer to Figures 1 - 6 , in this embodiment, by fixing the motor fixing seat support ring 1, the motor can be normally installed on the electric tricycle at the same time; since the torsion spring 5, the movable drum 4 and the buffer drum 3 are all sleeved outside the motor, a multi-layer protection effect is achieved on the motor; at the same time, when a collision occurs and the helical member 32 hits an external object, the deformation of the helical member 32 and the buffer drum 3 facilitates reducing the collision impact; at the same time, since the helical member 32 is integrally inclined, the positions of both ends of the connecting portion 321 do not correspond, and the movable drum 4 can rotate, so during the process of the helical member 32 hitting an external object, it is convenient to cause the buffer drum 3 and the movable drum 4 to rotate, and energy absorption is achieved through the rotation of the buffer drum 3 and the movable drum 4; and when the buffer drum 3 rotates, it will cause the torsion spring 5 to deform, further improving the buffer energy absorption effect, effectively reducing the collision impact, and thus reducing or avoiding damage to the motor.

[0038] Embodiment Two

[0039] Please refer to Figures 7 - 11 , based on Embodiment One, a folding spring piece 7 is fixedly provided at one end of each arc-shaped support bar 2 away from the support ring 1, a support seat 8 is provided at one end of the folding spring piece 7 away from the support base 8, a nylon contact head 9 is provided on the support seat 8, one end of the nylon contact head 9 away from the support seat 8 is in a bullet shape, and one end of the nylon contact head 9 away from the support seat 8 contacts the outer wall of one of the arc-shaped portions 322, that is, the three nylon contact heads 9 respectively contact the outer walls of the three arc-shaped portions 322; the material of the folding spring piece 7 can be copper, so that the folding copper piece has good elasticity.

[0040] A rear cover plate 6 is commonly connected to the three support seats 8, and the rear cover plate 6 and each support seat 8 can be connected by screws or other means; at the same time, a plurality of through holes 61 are also provided on the rear cover plate 6; by providing the plurality of through holes 61, the heat dissipation of the motor is not affected.

[0041] In this embodiment, the rear cover plate 6 is provided to protect the tail end of the motor. When the rear cover plate 6 impacts an external object, the rear cover plate 6 causes the folding spring piece 7 to deform, facilitating the mitigation of the impact. Moreover, when the rear cover plate 6 moves towards the motor, the nylon contact head 9 also squeezes the corresponding arc portion 322. Through the deformation of the nylon contact head 9 and the arc portion 322, the impact is further mitigated. And when the nylon contact head 9 squeezes the arc portion 322, it is likely to cause the buffer cylinder 3 and the movable rotating cylinder 4 to rotate. Through the rotation of the buffer cylinder 3 and the movable rotating cylinder 4, energy absorption is achieved. When the buffer cylinder 3 rotates, it can cause the torsion spring 5 to deform, thereby effectively mitigating the collision impact. Therefore, the motor is effectively protected, and the damage to the motor can be reduced or avoided during the impact of the entire protective shell.

[0042] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0043] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A motor protective shell, characterized in that: include: A support ring (1), the electric tricycle motor to be installed being used to be fixed on the support ring (1); An arc-shaped support bar (2), wherein the arc-shaped support bar (2) is provided in plurality, and the plurality of arc-shaped support bars (2) are all arranged on one side of the support ring (1); A movable rotating drum (4), wherein the movable rotating drum (4) is movably arranged on the plurality of arc-shaped support bars (2), and the movable rotating drum (4) can rotate along its own axis; A buffer cylinder (3), the buffer cylinder (3) being fixedly sleeved on the outside of the movable rotating cylinder (4); An oblique toothed member (32), the oblique toothed member (32) being arranged obliquely, a plurality of the oblique toothed members (32) being arranged outside the buffer cylinder (3), and the plurality of the oblique toothed members (32) being evenly distributed along the circumference of the axis of the buffer cylinder (3); A torsion spring (5), one end of the torsion spring (5) being fixed on the support ring (1), the other end of the torsion spring (5) being matched with the buffer cylinder (3), and the torsion spring (5) being sleeved on the outside of the motor of the electric tricycle to be installed; The helical gear member (32) comprises: a connecting portion (321), the connecting portion (321) being arranged outside the buffer cylinder (3) and being arranged obliquely; an arc-shaped portion (322), the arc-shaped portion (322) being connected to the connecting portion (321); and an extending portion (323), an end of the arc-shaped portion (322) away from the connecting portion (321) extending in a straight line to form the extending portion (323); A folded spring sheet (7) is provided at one end of each of the arc-shaped support strips (2) away from the support ring (1); A support seat (8) is provided on each of the folded spring leaves (7); Each of the support seats (8) is provided with a nylon contact head (9), and the nylon contact head (9) contacts the outer wall of one of the arc-shaped portions (322).

2. A motor protection case according to claim 1, characterized in that: Each of the arc-shaped support bars (2) is provided with a slide groove (21), and the movable rotating drum (4) is cooperatively arranged in each of the slide grooves (21).

3. The motor protection case according to claim 1, characterized in that: A protrusion (31) is provided at one end of the buffer cylinder (3) away from the support ring (1), an opening groove (311) is provided on the protrusion (31), and one end of the torsion spring (5) is arranged in the opening groove (311).

4. The motor protection case according to claim 1, characterized in that: Also includes: A rear cover plate (6), the rear cover plate (6) being connected to all the support seats (8), and the rear cover plate (6) having a plurality of through holes (61) evenly distributed on the rear cover plate (6).

5. The motor protection case according to claim 1, characterized in that: The movable rotating drum (4) is provided with a plurality of first elongated holes (41) extending through it.

6. The motor protection case according to claim 1, characterized in that: The buffer cylinder (3) is provided with a plurality of second elongated holes (33) penetrating therethrough, and the plurality of second elongated holes (33) and the plurality of helical gear members (32) are arranged alternately.

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