阅读说明：本技术 一种基于电磁吸引以及悬浊液限位的电机用保护装置 (Motor protection device based on electromagnetic attraction and suspension limitation ) 是由 朱凤梅 于 2020-05-11 设计创作，主要内容包括：一种基于电磁吸引以及悬浊液限位的电机用保护装置,涉及电动机技术领域,包括壳体,所述壳体的左侧活动连接有齿轮,齿轮的右侧啮合有滑筒,滑筒的左侧内壁固定连接有两个对称的正极板,滑筒的右侧内壁固定连接有两个互相对称的负极板。该基于电磁吸引以及悬浊液限位的电机用保护装置,通过电介质板与正极板和负极板的配合使用,当玻璃升降至极限状态时,滑筒滑动至顶部或者底部,并且此时与滑筒相同方向的电磁体产生磁性,通过与磁块吸引将活动块向电磁体方向移动,当移动至相同方向后,电介质板将正极板和负极板的相对面积减小至最小,这时电路电压小于电阻的最小通路电压,导致电路处于断路状态有效保护电机,避免电机超负荷工作。(The utility model provides a protection device for motor based on electromagnetism is attracted and turbid liquid is spacing, relates to motor technical field, including the casing, the left side swing joint of casing has the gear, and the right side meshing of gear has a slide cartridge, the positive plate of two symmetries of left side inner wall fixedly connected with of slide cartridge, the negative plate of two symmetries of each other of right side inner wall fixedly connected with of slide cartridge. This protection device for motor based on electromagnetism attracts and turbid liquid is spacing, use through the cooperation of dielectric plate with positive plate and negative plate, when glass goes up and down to extreme condition, the slide cartridge slides to top or bottom, and produce magnetism with the electromagnet of slide cartridge equidirectional this moment, move the movable block to the electromagnet direction through attracting with the magnetic path, after moving to the equidirectional direction, the relative area of dielectric plate with positive plate and negative plate reduces to the minimum, at this moment circuit voltage is less than the minimum passageway voltage of resistance, lead to the circuit to be in the effective protection motor of the state of opening circuit, avoid motor overload work.)

1. The utility model provides a protection device for motor based on electromagnetism is attracted and turbid liquid is spacing, includes casing (1), its characterized in that: the left side of the shell (1) is movably connected with a gear (2), the right side of the gear (2) is meshed with a sliding cylinder (3), the left side inner wall of the sliding cylinder (3) is fixedly connected with two symmetrical positive plates (4), the right side inner wall of the sliding cylinder (3) is fixedly connected with two symmetrical negative plates (5), the inner top wall and the inner bottom wall of the shell (1) are fixedly connected with a first conducting block (6) matched with the sliding cylinder (3), the inner walls of the top and the bottom of the shell (1) are fixedly connected with a resistor (7) respectively electrically connected with the two negative plates (5), the inner walls of the top and the bottom of the shell (1) are fixedly connected with an electromagnet (8), the middle part of the shell (1) is provided with a sliding groove (9), the inner top wall and the inner bottom wall of the sliding groove (9) are fixedly connected with a spring (10), the inner side of the spring (10) is close to the middle part of the shell (1) and is, the middle part of the movable block (11) is fixedly connected with a dielectric plate (12), the top inner wall and the bottom inner wall of the movable block (11) are fixedly connected with magnetic blocks (13), the middle part of the sliding groove (9) is fixedly connected with a rubber ring (14), and the inner wall of the rubber ring (14) is fixedly connected with a second conducting block (15) electrically connected with the resistor (7).

2. The motor protection device based on electromagnetic attraction and suspension limiting as claimed in claim 1, wherein: the material of casing (1) is stereoplasm high strength material and the inner wall of casing (1) is seted up with gear (2) and slide cartridge (3) looks adaptation's groove.

3. The motor protection device based on electromagnetic attraction and suspension limiting as claimed in claim 1, wherein: the gear (3) is fixedly connected with an output shaft of the motor, and the left side of the sliding barrel (3) is fixedly connected with teeth matched with the gear (2).

4. The motor protection device based on electromagnetic attraction and suspension limiting as claimed in claim 1, wherein: the size of the positive plate (4) is the same as that of the negative plate (5), and the shape of the positive plate (4) is arc-shaped plate-shaped.

5. The motor protection device based on electromagnetic attraction and suspension limiting as claimed in claim 1, wherein: the first conductive block (6) is made of copper materials, and the diameter of the first conductive block (6) is smaller than the thickness of the sliding cylinder (3).

6. The motor protection device based on electromagnetic attraction and suspension limiting as claimed in claim 1, wherein: the minimum path voltage of the resistor (7) is greater than the minimum voltage of the circuit, the resistor (7) is a piezoresistor, the magnetism of the inner side of the electromagnet (8) is opposite to that of the outer side of the magnetic block (13), and the width of the electromagnet (8) is greater than that of the magnetic block (13).

7. The motor protection device based on electromagnetic attraction and suspension limiting as claimed in claim 1, wherein: the width of spout (9) is the same with the width of movable block (11) and the height that highly is less than casing (1) of spout (9), spring (10) are less than the width of movable block (11) for the diameter of compression spring and spring (10), the equal swing joint in both sides of material for stereoplasm high strength material and movable block (11) of movable block (11) has the ball.

8. The motor protection device based on electromagnetic attraction and suspension limiting as claimed in claim 1, wherein: the size of the dielectric plate (12) is the same as that of the positive plate (4), the magnetic block (13) is made of a rubidium magnet material, the size of the magnetic block (13) is smaller than that of the movable block (11), and suspension is filled in the middle of the rubber ring (14).

Technical Field

The invention relates to the technical field of motors, in particular to a motor protection device based on electromagnetic attraction and suspension limiting.

Background

The motor is an electromagnetic device for realizing electric energy conversion or transmission according to the electromagnetic induction law, has the main function of generating driving torque, is used as a power source of electrical appliances or various machines, effectively reduces labor force, can also greatly improve productivity, and is widely applied in daily life.

For example, there is the motor in present car, like the glass of car door window is mostly driven through the motor, make the process of lifting glass more convenient, however, present glass elevator motor is when using, often can meet the condition of overload work, this is because when glass goes up and down to extreme position, glass can't continue to move, but the motor still is in the on-state, but the motor can't rotate, lead to the inside heat of motor to rise, thereby lead to the motor to be in overload motion, can make the motor wearing and tearing serious after long-time use, greatly reduced the life of motor.

Therefore, we have provided a protection device for motor based on electromagnetism attracts and the turbid liquid is spacing to solve above problem, uses through the cooperation of dielectric medium board and positive plate and negative plate, and circuit voltage is less than the minimum pass voltage of resistance, leads to the circuit to be in the state of opening a circuit, makes the motor inoperative, effectively protects the motor, avoids motor overload work, uses through the cooperation of rubber circle and electromagnet, effectively prevents the movable block removal, has guaranteed outage protection device's sensitivity, ensures steady operation.

Disclosure of Invention

The invention adopts the following technical scheme for realizing the technical purpose: a protection device for a motor based on electromagnetic attraction and suspension limiting comprises a shell, wherein a gear is movably connected to the left side of the shell, a sliding cylinder is meshed to the right side of the gear, two symmetrical positive plates are fixedly connected to the left inner wall of the sliding cylinder, two symmetrical negative plates are fixedly connected to the right inner wall of the sliding cylinder, a first conductive block matched with the sliding cylinder is fixedly connected to the inner top wall and the inner bottom wall of the shell, resistors electrically connected with the two negative plates respectively are fixedly connected to the inner walls of the top and the bottom of the shell, electromagnets are fixedly connected to the inner walls of the top and the bottom of the shell, a sliding groove is formed in the middle of the shell, springs are fixedly connected to the inner top wall and the inner bottom wall of the sliding groove, a movable block movably connected with the inner walls of the sliding groove is fixedly connected to the inner side of each spring and close, the top inner wall and the bottom inner wall of the movable block are fixedly connected with magnetic blocks, the middle of the sliding groove is fixedly connected with a rubber ring, and the inner wall of the rubber ring is fixedly connected with a second conducting block electrically connected with a resistor.

The invention has the following beneficial effects:

1. this protection device for motor based on electromagnetism attraction and turbid liquid are spacing, use through the cooperation of dielectric plate and positive plate and negative plate, when glass goes up and down to extreme condition, the slide cartridge slides to top or bottom, and produce magnetism with the electromagnet of slide cartridge equidirectional this moment, through attracting with the magnetic path with the movable block to electromagnet direction removal, after removing to the equidirectional, the relative area of positive plate and negative plate is reduced to the minimum to the dielectric plate, at this moment circuit voltage is less than the minimum passageway voltage of resistance, lead to the circuit to be in the state of opening circuit, make the motor inoperative, effectively protect the motor, avoid motor overload work.

2. This protection device for motor based on electromagnetism attracts and turbid liquid is spacing, use through the cooperation of rubber circle with the electromagnet, when the slide cartridge removes to the other end from one end, the electrical contact and the conducting block separation of slide cartridge this moment, the electromagnet outage of near-end this moment, do not produce magnetism, and turbid liquid outage in the rubber circle, turbid liquid is soft attitude, deformation can take place, when the slide cartridge removes to the other end, the electromagnet circular telegram of the other end and production magnetism, think the other end with the movable block through the magnetic path and attract, and when the slide cartridge contacted with the conducting block of the other end, turbid liquid circular telegram becomes solid-state, effectively prevent the movable block and remove, the sensitivity of outage protection device has been guaranteed, ensure the steady operation.

Further, the material of casing is stereoplasm high strength material and the inner wall of casing sets up the groove with gear and smooth section of thick bamboo looks adaptation, the gear is connected with the output shaft fixed connection of motor, the left side fixedly connected with of smooth section of thick bamboo and the tooth of gear looks adaptation.

Further, the positive plate is the same with the negative plate in size and the shape of positive plate is arc platelike, the material of conducting block one is copper material and the diameter of conducting block one is less than the thickness of slide cartridge.

Further, the minimum path voltage of the resistor is larger than the minimum voltage of the circuit, the resistor is a piezoresistor, the magnetism of the inner side of the electromagnet is opposite to that of the outer side of the magnetic block, and the width of the electromagnet is larger than that of the magnetic block.

Further, the width of spout is the same with the width of movable block and the height that highly is less than the casing of spout, the diameter that the spring is compression spring and spring is less than the width of movable block, the equal swing joint in both sides that the material of movable block is stereoplasm high strength material and movable block has the ball.

Further, the size of dielectric plate is the same with the positive plate size, the material of magnetic path is that the size of rubidium magnet material and magnetic path is less than the size of movable block, the middle part of rubber circle is filled with turbid liquid.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged partial view of portion A of FIG. 1;

FIG. 3 is a schematic diagram of a moving structure of the movable block according to the present invention;

FIG. 4 is an enlarged partial view of the portion B in FIG. 3 according to the present invention.

In the figure: 1. a housing; 2. a gear; 3. a slide cylinder; 4. a positive plate; 5. a negative plate; 6. a first conductive block; 7. a resistance; 8. an electromagnet; 9. a chute; 10. a spring; 11. a movable block; 12. a dielectric plate; 13. a magnetic block; 14. a rubber ring; 15. and a second conductive block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a motor protection device based on electromagnetic attraction and suspension limiting comprises a housing 1, the housing 1 plays a role in fixing various components, the housing 1 is made of hard high-strength material, a groove matched with a gear 2 and a sliding cylinder 3 is formed in the inner wall of the housing 1, the gear 2 is fixedly connected with an output shaft of a motor, teeth matched with the gear 2 are fixedly connected to the left side of the sliding cylinder 3, the gear 2 is movably connected to the left side of the housing 1 and plays a role in transmission, the sliding cylinder 3 is meshed to the right side of the gear 2 and plays a role in transmission, two symmetrical positive plates 4 are fixedly connected to the inner wall of the left side of the sliding cylinder 3, the positive plates 4 and the negative plates 5 play a role in changing the circuit voltage, the size of the positive plates 4 is the same as that of the negative plates 5, and the positive plates 4 are arc-shaped plates, the conductive block I6 is made of copper materials, the diameter of the conductive block I6 is smaller than the thickness of the sliding cylinder 3, and the right inner wall of the sliding cylinder 3 is fixedly connected with two symmetric negative plates 5.

The inner top wall and the inner bottom wall of the shell 1 are fixedly connected with a first conductive block 6 matched with the sliding cylinder 3, the first conductive block 6 plays a role of communicating a circuit, the inner walls of the top and the bottom of the shell 1 are fixedly connected with resistors 7 respectively electrically connected with the two negative plates 5, the resistors 7 play a role of controlling the circuit to be communicated, the minimum access voltage of the resistors 7 is greater than the minimum voltage of the circuit, the resistors 7 are piezoresistors, the magnetism of the inner side of the electromagnet 8 is opposite to that of the outer side of the magnetic block 13, the width of the electromagnet 8 is greater than that of the magnetic block 13, the inner walls of the top and the bottom of the shell 1 are fixedly connected with the electromagnet 8, the electromagnet 8 plays a role of transmission, the middle part of the shell 1 is provided with a sliding groove 9, the sliding groove 9 plays a role of limiting the sliding direction of the movable block 11, the width of the sliding groove 9 is the same, spring 10 is compression spring and spring 10's diameter is less than the width of movable block 11, the equal swing joint in both sides that the material of movable block 11 is stereoplasm high strength material and movable block 11 has the ball, the equal fixedly connected with spring 10 of the interior roof of spout 9 and interior diapire, spring 10 plays the effect that the movable block 11 of being convenient for removed, the inboard of spring 10 just is close to the middle part fixedly connected with of casing 1 and the inner wall swing joint's of spout 9 movable block 11, movable block 11 plays driven effect.

The middle part fixedly connected with dielectric plate 12 of movable block 11, dielectric plate 12 plays the effect that changes the circuit voltage size, the size of dielectric plate 12 is the same with the size of positive plate 4, the material of magnetic path 13 is rubidium magnet material and the size of magnetic path 13 is less than the size of movable block 11, the middle part of rubber circle 14 is filled with the turbid liquid, the equal fixedly connected with magnetic path 13 of top inner wall and bottom inner wall of movable block 11, magnetic path 13 plays driven effect, the middle part fixedly connected with rubber circle 14 of spout 9, the turbid liquid is solid-state under the on-state, be liquid under the off-state, the principal ingredients of turbid liquid include gypsum etc., the inner wall fixedly connected with of rubber circle 14 and resistance 7 electric connection's conducting block two 15.

The working principle is as follows: when the glass is lifted to one of the limit states, as shown in fig. 1, at this time, the sliding barrel 3 moves to the bottom, the dielectric plate 12 reduces the relative area of the positive plate 4 and the negative plate 5 to the minimum, at this time, the circuit voltage is smaller than the minimum path voltage of the resistor 7, the motor cannot continue to rotate towards the limit state direction, the motor stops working, and meanwhile, because the conductive block I6 is communicated with the circuit at the bottom of the sliding barrel 3 and current passes through, the suspension in the rubber ring 14 is electrified to be solid, the movement of the movable block 11 is effectively limited, and the stability of the protection device is effectively improved.

When the glass moves from one limit state to another limit state, the process is shown in fig. 3, at this time, the sliding cylinder 3 moves to the top and is typically connected with the top conductive block 6, but at this time, the relative area of the positive plate 4 and the negative plate 5 is large, the circuit voltage is larger than the minimum path voltage of the resistor 7, the top electromagnet 8 is electrified and generates magnetism, the top electromagnet 8 is mutually attracted with the magnetic block 13 in the movable block 11, the movable block 11 is attracted to the top and moves, the movable block 11 enables the rubber ring 14 to change into the nature, finally, the rubber ring 14 penetrates through the rubber ring 14 and moves to the top, after the magnetism passes, the suspension in the rubber ring 14 becomes solid, and the position of the movable block 11 is effectively limited.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.