KR102269626B1 - High performance inverter module - Google Patents

Abstract

Provided is an inverter module. The inverter module comprises: an arrangement unit in which a conversion unit is accommodated; ascending and descending units connected to both sides of the arrangement unit and configured to move the arrangement unit in a vertical direction; a damping unit located inside the arrangement unit, wherein an upper end thereof is connected to a lower surface of the conversion unit and a lower end thereof is connected to an inner surface of the arrangement unit so that vertical movement of the conversion unit is dampened; and a photographing unit formed in an outward direction of a support unit and configured to photograph a disk-shaped marking unit formed on the lower surface of the conversion unit. In accordance with the present invention, the conversion unit moves vertically by external force. However, the conversion unit is buffered so that a moving distance and a reciprocating distance of the conversion unit are reduced through the damping unit and the ascending and descending units. Therefore, shock can be easily absorbed and distributed so as to prevent damage to the conversion unit. In addition, based on a first magnetic force unit, a second magnetic force unit, and a third magnetic force unit, the excessive vertical movement of the second magnetic force unit can be suppressed separately in accordance with the magnitude of the magnetic force and whether there is an attractive or repulsive force. Therefore, the damping effect and the vibration blocking effect can be maximized.

Description

High performance inverter module

The present invention relates to a high-performance inverter module. More particularly, it relates to an inverter module capable of maximizing the buffering performance and easily switching the power supply direction according to external environmental conditions.

In general, an inverter is a component that converts and boosts DC and AC voltages for a portable mobile device or a device operated by a battery. Recently, as research to commercialize electric vehicles using electricity, which is pollution-free energy, as a power source has been actively conducted, the development of inverters for electric vehicles is also progressing at the same time.

Here, the inverter for an electric vehicle is located in the lower body of the vehicle in order to prevent unnecessary space waste and power loss in the switching operation process, and is generally disposed between wheels located in both directions, or a separate inverter as in Prior Document 1 A method for completely integrating a housing and a driving motor is disclosed.

However, it is difficult to buffer the movement of the inverter itself due to the characteristics of a vehicle that reciprocates up and down or is pressed in a specific direction during the driving process. In addition, when an external force is extremely applied to the inverter, a solution such as minimizing vibration and preventing damage is not provided. Therefore, it is necessary to develop an inverter module that can protect the inverter while not fixing the position, allowing a more flexible response to external forces and maximizing the buffering performance according to the external environment.

Prior Document 1: Republic of Korea Patent Registration No. 10-2171845 (Registered on October 23, 2020)

An object of the present invention is to solve the above problems, and to provide an inverter module that can be buffered by absorbing and dispersing shock without being damaged by external force.

In addition, an object of the present invention is to provide an inverter module capable of quickly detecting and attenuating the movement of the wheel in the vertical direction.

In addition, the problem to be solved by the present invention is to easily perform buffering without using damping through the existing oil movement in the damping process for reducing the vertical movement of the inverter.

In addition, an object of the present invention is to omit the use of oil by performing damping using a combination of restoring force and electromagnetic force.

To this end, the present invention is a placement unit in which the conversion unit is accommodated, an elevating unit that is connected to both directions of the placement unit to move the placement unit up and down, and is located inside the placement unit so that the upper end is connected to the lower surface of the conversion unit, and the lower end is connected to the inner surface of the arrangement unit And it provides an inverter module including an imaging unit for photographing a disc-shaped marking formed on the lower surface of the damping unit and the support portion and formed in the outer direction of the support to attenuate the movement in the vertical direction of the conversion unit.

According to the present invention, since the switching unit moves in the vertical direction by external force, but is buffered to reduce the moving distance and the reciprocating distance through the damping unit and the elevating unit, it is possible to easily absorb and disperse the shock, thereby preventing damage. .

In addition, since the degree of approach between the upper and lower parts is double grasped based on the magnetic force between the rod and the first shock absorber and the magnetic force change per reference time, the accuracy in locating the vehicle body and the wheel can be significantly improved.

In addition, in the case of the present invention, it is possible to further suppress the excessive vertical movement of the second magnetic force unit according to the magnitude of the magnetic force and the presence of attractive or repulsive force based on the first magnetic force unit, the second magnetic force unit, and the third magnetic force unit. , the damping effect and the vibration generation blocking effect can be maximized.

1 is a view showing an overall high-performance inverter module according to an embodiment of the present invention.
2 is a cut-away perspective view of a high-performance inverter module according to an embodiment of the present invention.
3 is a view showing a marking unit photographed by an imaging unit according to an embodiment of the present invention.
4 is a view showing the overall elevating unit according to an embodiment of the present invention.
5 is a view showing the external shape of the elevating unit according to an embodiment of the present invention.
6 is a cross-sectional view of the elevating unit according to an embodiment of the present invention.
7 is a view showing the first cushioning unit, the disk unit, and the expansion and contraction unit according to an embodiment of the present invention.
8 is a view showing a lower end according to an embodiment of the present invention.
9 is a view showing the primary attenuation according to the upward movement of the lower end of the present invention.
10 is a view showing the secondary damping by the stretching unit according to an embodiment of the present invention.
11 is a view showing the third-order attenuation by the first magnetic force unit of the present invention.
12 is a view showing a first magnetic force unit, a second magnetic force unit, and a third magnetic force unit according to an embodiment of the present invention.
13 is a view showing the fourth damping according to the downward movement of the lower end according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those of ordinary skill in the art can easily implement them. However, the present invention may be embodied in various different forms and is not limited to the embodiments described below or illustrated in the drawings. In addition, in order to clearly explain the present invention in the drawings, parts irrelevant to the present invention are omitted, and the same or similar symbols in the drawings indicate the same or similar components.

Objects and effects of the present invention can be naturally understood or made clearer by the following description, and the objects and effects of the present invention are not limited only by the following description.

Before describing the present invention in detail, the downward direction is a downward direction in the drawing as a direction toward the wheels when the inverter module according to the present invention is installed in a vehicle. In addition, the upward direction means an upward direction in the drawing as a direction opposite to the downward direction. In addition, the bilateral direction refers to a direction toward both sides with respect to the front and rear, and means a left direction and a right direction.

In addition, the switching unit and the elevating unit to be described later in this specification may be formed to be vertical from the ground, or provided so that the upper end is inclined backward by a predetermined angle from the ground in order to maximize the cushioning performance, and in the case of the above-mentioned predetermined angle, the designer It can be changed according to the convenience of the user and the required cushioning performance.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing a high-performance inverter module according to an embodiment of the present invention as a whole, Figure 2 is a cut-away perspective view of the high-performance inverter module according to an embodiment of the present invention. In addition, FIG. 3 is a view showing the marking unit 230 photographed by the imaging unit 240 according to an embodiment of the present invention.

The high-performance inverter module according to the present invention includes a switching unit 100 , an arrangement unit 200 , and an elevating unit 300 .

The conversion unit 100 is a component that controls the supply of power to rotate the wheel, and in detail, receives and transmits the power supplied from the battery, and serves to vary the voltage and frequency so as to maximize the transmission efficiency. It is provided as a conversion means such as an inverter.

The arrangement unit 200 protects the conversion unit 100 and at the same time provides a space so that the conversion unit 100 can be buffered. The arrangement unit 200 is provided in the form of a box in which the upper surface is opened and the switching unit 100 is inserted, and separate connecting means connected to the elevating unit 300 and formed in the form of a rod are arranged in both directions, and the connecting means may be connected to the wheel. To this end, guide grooves 201 for exposing the connecting means to the outside of the arrangement unit 200 are further provided on both sides of the arrangement unit 200 . Through this, the switching unit 100 can perform a damping motion in response to the vertical movement of the wheel in a state connected to the elevating unit 300 in the inner space of the arrangement unit 200, so that the switching unit 100 from an external force. can be prevented from being directly impacted.

The elevating unit 300 is configured to perform a buffer by reciprocating by moving the connected arrangement unit 200 in the vertical direction in a state in which the arrangement unit 200 is fixed in position. To this end, the elevating unit 300 includes an upper end, a lower end, and a body portion. A more detailed description thereof will be provided later with reference to FIG. 4 .

Referring to FIG. 2 , the damping part 210 , the support part 220 , the marking part 230 and the scratch part are further provided inside the placement part 200 .

At the same time, the damping unit 210 assists the switching unit 100 to be positioned within the arrangement unit 200 and prevents the switching unit 100 from being excessively directed downward. To this end, the damping unit 210 is provided in the form of a spring so that both ends are connected to the inner surface of the arrangement unit 200 and the lower surface of the conversion unit 100 , respectively. In detail, the upper end facing the upper direction of the damping unit 210 is connected to the lower surface of the switching unit 100, and the lower end facing the lower direction is connected to the inner surface of the arrangement unit 200 located in the lower direction. Through this, the damping unit 210 uses the restoring force, thereby limiting the excessive downward movement of the switching unit 100 .

As a more preferred embodiment, a support 220 is further provided in the lower direction of the switching unit 100 to prevent excessive movement in the downward direction of the switching unit 100 together with the damping unit 210 . To this end, the support unit 220 is provided as a shock absorbing means such as a sponge that is deformed when pressed, the upper surface may be provided in the shape of a pile in contact with the lower surface of the conversion unit (100).

The marking unit 230 is configured to allow the position of the switching unit 100 to be identified. In detail, the marking unit 230 is photographed by the imaging unit 240 to calculate the area, and through this, the switching unit 100 assists in identifying where the position is located inside the arrangement unit 200 . To this end, the marking unit 230 is attached to the lower surface of the conversion unit 100 and is provided toward the inner surface of the arrangement unit 200 . In addition, the marking unit 230 is provided in the shape of a disk having a predetermined diameter.

The imaging unit 240 is configured to photograph the above-described marking unit 230 and calculate the area. In detail, the imaging unit 240 includes a preset time stored in a state arranged to correspond to the marking unit 230 , and the imaging unit 240 for each preset time stored in advance takes a picture of the marking unit 230 . to measure the width. In addition, the imaging unit 240 forms marking information for the measured area of the marking unit 230, and transmits the marking information to the control unit.

The control unit includes the reference area (a0) stored in advance as a configuration for controlling the driving of the switching unit 100 in response to the area (a1) of the marking unit 230 in the marking information, and the reference area (a0) and the received The area a1 of the marking unit 230 in the marking information is compared. In addition, the control unit receives sensing information from a measurement unit, which will be described later, and receives magnetic force information from a recognition unit.

4 is a view showing the elevating unit 300 according to an embodiment of the present invention as a whole, and Figure 5 is a view showing the external form of the elevating unit 300 according to an embodiment of the present invention.

The elevating unit 300 according to an embodiment of the present invention is connected to the vehicle body in the upper direction and the wheel in the lower direction, and is located in the upper direction of the body portion 310 and the body portion 310 with an open inside. The upper part 320, the lower part 330 disposed in the lower direction of the body part 310, the first buffer part 311 positioned inside the body part 310, and the body part 310 while positioned inside The second shock absorber 316, which is provided so that the lower end 330 passes through and attenuates the movement of the lower end 330 using magnetic force, is located in the lower direction of the upper end 320 and in the inner direction of the first shock absorber 311. and a measuring unit 315 disposed in an outer direction of the positioned rod 314 and the first shock-absorbing unit 311 to measure a change in magnetic force between the first shock-absorbing unit 311 and the bar unit 314 .

The body part 310 provides a space for the upper part 320 and the lower part 330 to move in the vertical direction, and a space for the first shock absorber 311 and the second shock absorber 316 to be described later. provides To this end, the body portion 310 is provided in the form of a hollow cylinder, and the upper and lower surfaces are opened so that the upper end 320 and the lower end 330 are inserted in the upper and lower directions, respectively. As a more preferred embodiment, as the body 310 is provided with an insulator, the control unit 400, which will be described later, unintentionally removes power from the first magnetic force unit m1 and the second magnetic force unit m2 in the process of applying power. 2 It is possible to prevent the shock absorber 316 from moving inside the body 310 in advance.

The upper end 320 is inserted into the body 310 to be positioned above the body 310 , and the exposed upper end is connected to the vehicle body. On the other hand, in the lower direction of the upper end 320 is provided with a disk portion 312 and a telescopic portion 313 for moving the disk portion 312 .

The lower end 330 is connected to the wheel and performs vertical movement in response to the vibration of the vehicle. To this end, the lower end 330 is inserted into the lower direction of the body portion 310 so that the lower end is exposed in the lower direction, and the upper end is located inside the body portion 310 but provided in the form of a flange.

6 is a cross-sectional view of the elevating unit 300 according to an embodiment of the present invention, and FIG. 7 is a first cushioning part 311, a disc part 312, and an expansion/contraction part 313 according to an embodiment of the present invention. It is a drawing showing

A chin 321 inserted in the lower direction of the upper end 320 is provided. In detail, the upper end 320 is provided with a jaw portion 321 fitted to be inserted into the body portion 310 , and the jaw portion 321 is provided in the form of a disk to seal the internal space of the body portion 310 . do. That is, since the outer circumferential surface of the chin portion 321 is in contact with the inner circumferential surface of the body portion 310 , it is possible to prevent the upper end portion 320 from being distorted with respect to the central axis of the body portion 310 in the vertical movement process.

The first buffer part 311 performs a buffer between the upper part 320 and the lower part 330 . In detail, the first shock absorber 311 is disposed inside the body 310 to be positioned between the upper end 320 and the lower end 330 , and is provided as a three-dimensional spiral-shaped expansion and contraction means. In more detail, the first shock absorber 311 is provided with a spring and has elastic and restoring force, and the lower end is connected to the lower end 330 , and the upper end is connected to the lower end 330 . As a more preferred embodiment, the upper end of the first cushioning part 311 is connected to the disc part 312 located in the lower direction of the upper end part 320, thereby preventing distortion in the expansion/contraction process by external force in advance, and external force is applied to the upper end part. It is possible to block direct application to 320 . Through the first cushioning unit 311 provided in the form of a coil, it is possible to prevent excessive movement of the lower end 330 in the upward direction and at the same time to prevent excessive movement in the downward direction.

The disc part 312 provides a space for arranging the bar part 314 and the measuring part 315, which will be described later, and is connected to the upper end of the first buffer part 311 to press the lower end part 330 upward. dissipate the force generated by To this end, the disk portion 312 is formed in the form of a disk, the outer peripheral surface is provided to be in contact with the inner peripheral surface of the body portion 310, the bar portion 314 and the measuring portion 315 are arranged in the lower direction. In addition, the lower surface of the disc part 312 is connected to the upper end of the first shock absorber 311 described above, and the upper surface is connected to the expansion and contraction part 313 . Here, in response to the expansion and contraction of the expansion and contraction part 313 , the disk part 312 integrally moves in the vertical direction, and the bar part 314 and the measurement part 315 are equally positionally changed in response thereto, and the lower part 330 is moved in the same direction. ), when the vertical position is fixed, the first shock absorber 311 is extended or contracted.

The stretchable part 313 is configured to move the disk part 312 in the vertical direction. In detail, the stretchable part 313 is provided as an elevating means whose lower end is connected to the upper surface of the disk unit 312, and the position of the lower end is moved by receiving a communication signal from the control unit 400 to be described later. In more detail, the stretchable portion 313 is located between the upper end 320 and the disk portion 312, but the lower end and the disk portion 312 are integral with the upper end connected to the jaw portion 321 and fixed in a fixed state. to move up and down. Here, it is preferable that the expansion and contraction unit 313 has a hydraulic lifting configuration therein or must be able to move the position of the lower end in the vertical direction through a power lifting configuration receiving power. Since the expansion and contraction part 313 is provided, additional buffering and damping are possible in addition to the damping through the above-described first buffering part 311 , so that it is possible to effectively prevent a decrease in durability against an external force acting with the same size. .

The bar portion 314 is provided for the purpose of easily grasping the degree of approach between the upper end 320 and the lower end 330 through interaction with the first cushioning portion 311 . To this end, the bar portion 314 is electrically connected to the control unit 400 located on the lower surface of the disk portion 312 to receive power, or is connected to a separate power supply means such as a battery and applied to power, It is provided with an electromagnet with magnetism. In addition, the rod portion 314 is connected to the lower surface of the disk portion 312 and protrudes downwardly, is formed in a three-dimensional spiral shape, and has an upper end connected to the disk portion 312. The inner side of the first cushioning portion 311 located in the direction Here, when the first shock absorber 311 is reduced, the number of windings of the first shock absorber 311 positioned between the upper end and the lower end of the rod portion 314 increases and the magnetic force increases accordingly. The measurement unit 315 may easily calculate the magnetic force value and the magnetic force change amount between the rod unit 314 and the first buffer unit 311 .

The protrusion 3141 is formed in the downward direction of the bar 314 and is provided to recognize excessive access between the upper end 320 and the lower end 330 . To this end, the protrusion 3141 is provided to protrude from the lower surface of the bar 314 and to be inserted into the recognition groove 332 engraved on the upper surface of the lower end 330 .

The measuring unit 315 calculates the magnetic force and the magnetic force change amount between the first shock absorber 311 and the bar 314 . In detail, the measurement unit 315 is provided to easily determine the degree to which the upper end 320 and the lower end 330 approach each other, and to quickly perform buffering and damping based on this. To this end, the measuring part 315 is located in the lower direction of the disk part 312 . In detail, the measuring unit 315 is disposed to be attached to the lower surface of the disk unit 312 , and is located in the outer direction of the first cushioning unit 311 provided in the form of a coil. This is to obtain a more accurate magnetic force measurement value. The measuring unit 315 includes a preset and stored reference time, and at the same time measures the magnetic force for each reference time and calculates the magnetic force change amount. Here, the reference time may be variously provided such as 0.5 second, 1 second, 2 seconds, and the like, and magnetic force information including the measured magnetic force and magnetic force change amount is formed by the measuring unit 315 . Meanwhile, the magnetic force information formed through the above process is transferred from the measurement unit 315 to the control unit 400 . For this purpose, it is preferable that the measurement unit 315 includes a separate communication means so as to be connected to the control unit 400 in communication.

The second shock absorber 316 is configured to damp the excessive movement of the lower end 330 in the vertical direction, and is located inside the body 310 but is disposed in the lower direction of the upper end 320 . In detail, the second cushioning unit 316 has a tube shape through which the upper and lower surfaces are opened and the lower end 330 passes, and the first magnetic force unit m1 and the second magnetic force unit m2 are installed inside.

8 is a view showing the lower end 330 according to an embodiment of the present invention.

As described above, the lower end 330 is connected to the wheel and moves in the vertical direction according to the road surface condition to provide a buffer. To this end, the lower end 330 includes a third magnetic force part m3 , an insertion groove 331 , a recognition groove 332 , and a recognition part 333 .

The third magnetic force part m3 is configured to prevent excessive vertical movement of the lower end part 330 through interaction with the second buffer part 316 . To this end, the third magnetic force part m3 is located in the upper direction of the lower end 330, and is formed in a ring shape along the outer circumferential surface of the upper end. As a more preferred embodiment, the third magnetic force portion m3 is formed in the outer direction of the upper end of the lower end portion 330 provided in the form of a flange, and is provided and disposed to be spaced apart from the inner peripheral surface of the second buffer portion 316 . can be

The insertion groove 331 is designed so that the rod portion 314 can be inserted, and protects the rod portion 314 when the lower portion 330 moves excessively upward. To this end, the insertion groove 331 is engraved downward from the upper surface of the lower end 330 to correspond to the shape of the rod portion 314 . Through this, when an external force is applied to continue moving in the upward direction of the second connection part, the rod part 314 is inserted into the insertion groove 331 .

The recognition groove 332 provides a space for the protrusion 3141 to be disposed when the rod portion 314 is inserted into the insertion groove 331 . To this end, the recognition groove 332 is engraved from the lower surface of the insertion groove 331 and is formed to correspond to the shape of the protrusion 3141 . A recognition unit 333 is inserted and disposed inside the recognition groove 332 , and the recognition unit 333 is provided in the form of a pressure sensor for recognizing pressure. Here, when the rod part 314 and the protrusion 3141 are respectively inserted into the insertion groove 331 and the recognition groove 332 , the recognition part 333 comes into contact with the protrusion 3141 , and the recognition part 333 is the protrusion Sensing information on contact with the 3141 is formed and transmitted to the control unit 400 .

12 is a diagram illustrating a first magnetic force unit m1, a second magnetic force unit m2, and a third magnetic force unit m3 according to an embodiment of the present invention.

The first magnetic force part m1 and the second magnetic force part m2 attenuate the movement of the lower end part 330 through interaction with the aforementioned third magnetic force part m3. To this end, both the first magnetic force unit m1 and the second magnetic force unit m2 are installed in the second buffer unit 316 . The first magnetic force part m1 is provided in a ring shape, the second magnetic force part m2 is provided in a circular arc cross-sectional shape, and the first magnetic force part m1 is disposed in an upper direction of the second magnetic force part m2. In addition, the second magnetic force portion (m2) is formed in plurality, located in the lower direction so as to be spaced apart from the first magnetic force portion (m1) is provided to be spaced apart from each of the second magnetic force portion (m2) in the vertical direction as well. Here, the first thickness of the first magnetic force part m1 in the vertical direction is greater than the second thickness of the second magnetic force part m2 in the vertical direction. As such, the size of the first magnetic unit m1 is provided to be larger than that of the second magnetic unit m2, so that the first magnetic force, which is the magnetic force of the first magnetic unit m1, is the second magnetic force, which is the magnetic force of the second magnetic force unit m2. greater than 2 magnetism. In addition, the first magnetic part m1 and the second magnetic part m2 have opposite magnetism.

As a preferred embodiment of the present invention, the first magnetic force unit m1 and the second magnetic force unit m2 are supplied with power from the control unit 400 or supplied with power through a separate power supply means to have a magnetic configuration. can be Accordingly, in response to the control of the controller 400 , the first magnetic force unit m1 and the second magnetic force unit m2 may or may not have magnetism.

As described above, the control unit 400 applies power to the rod unit 314, the first magnetic force unit m1, and the second magnetic force unit m2, and moves the stretchable unit 313 in the vertical direction, and the measurement unit ( The magnetic force information is received from the 315 and sensing information is received from the recognition unit 333 . That is, the control unit 400 supplies power to a component requiring power supply, and controls the power supply and cutoff by grasping the degree of access between the upper part 320 and the lower part 330 based on magnetic force information and sensing information. To this end, the control unit 400 is composed of an assembly of a communication module and a calculation module and is formed to be attached to the lower surface of the disk unit 312 , but the location is not limited thereto. A detailed description of the power supply control based on the sensing information and the magnetic force information will be described later with reference to FIGS. 9 to 13 .

9 is a view showing the primary attenuation according to the upward movement of the lower end 330 of the present invention.

The primary attenuation is carried out for the lower end 330 directed in the upward direction, and prevents excessive rise. The first cushioning unit 311 located in the upper direction of the lower end 330 is compressed and reduced, and in this process, the measuring unit 315 determines the magnetic force between the bar 314 and the first cushioning unit 311 and the amount of change in magnetic force. to form magnetic force information by measuring and calculating respectively, and transmitting the magnetic force information to the control unit 400 .

The control unit 400 includes a prestored reference magnetic force value and a reference magnetic force change value per reference time, and compares the magnetic force and magnetic force change amount included in the received magnetic force information with the reference magnetic force value and the reference magnetic force change value per reference time, respectively.

When the magnetic force change amount included in the magnetic force information is greater than the reference magnetic force change value, the lower end 330 moves in the upper direction quickly, and the control unit 400 moves the lower end of the stretchable and contractible part 313 in the lower direction. Power is supplied to perform differential attenuation.

On the other hand, when the magnetic force change amount is greater than the reference magnetic force change value, the control unit 400 receives the updated magnetic force information from the measuring unit 315 again for each preset and stored reference time, and uses the magnetic force included in the magnetic force information as the reference magnetic force. Compare with value.

When the magnetic force in the magnetic force information is greater than the reference magnetic force value, the control unit 400 supplies power to perform secondary attenuation by moving the lower end of the stretching unit 313 in the downward direction. On the other hand, when the magnetic force is smaller than the reference magnetic force value, the control unit 400 induces the primary damping to continue through the restoring force of the first shock absorber 311 without performing the secondary damping, so that the movement of the lower end 330 is reduced. is fully charged

As a more preferred embodiment, when the protrusion 3141 is inserted into the recognition groove 332 to generate sensing information during the primary attenuation process, the control unit 400 drives the expansion and contraction unit 313 so that the secondary attenuation is immediately performed. to control

10 is a view showing the secondary attenuation by the stretchable portion 313 according to an embodiment of the present invention.

The secondary attenuation is performed when the lower end 330 excessively moves upward in spite of the primary attenuation through the first shock absorber 311 . To this end, in the secondary attenuation, the control unit 400 supplies power to the expansion and contraction unit 313 to induce the lower end to move downward. Accordingly, the disk portion 312 connected to the lower end of the expansion and contraction portion 313 and the upper end of the first cushioning portion 311 connected to the lower surface of the disk portion 312 move in the downward direction together. In this process, since the first cushioning unit 311 is further reduced, the time required for stretching using the restoring force is shortened, and the separation distance between the upper end portion 320 and the lower end portion 330 is increased. Through this, it is possible to prevent additional movement of the lower end 330 in the upward direction.

11 is a view showing the third-order attenuation by the first magnetic force unit m1 of the present invention.

The tertiary damping and the fourth damping according to FIG. 10 to be described later are damping performed when the lower end 330 excessively moves in the downward direction, and the fourth damping is performed after the third damping.

Third-order attenuation is implemented through the second buffer 316 . In detail, the tertiary damping is performed when the lower end 330 integrally connected with the wheel moves in the lower direction in a normal state where the upper end is positioned in the upper direction of the second shock absorber 316 . In the third damping, the upper end of the lower end portion 330 moves downward along the open interior of the lower end portion 330 in the upper direction of the second buffer unit 316, and in this process, the first magnetic force unit m1 and The third magnetic units m3 are positioned to correspond to each other to control the downward movement of the lower end 330 .

As the first magnetic force part m1 and the third magnetic force part m3 have the same magnetism, the third magnetic force part m3 and the second The first magnetic force unit m1 in the buffer unit 316 is stopped moving or the moving speed is reduced by the repulsive force.

Even after the first magnetic force part m1 and the third magnetic force part m3 are positioned to correspond to each other by repulsive force, when the lower end part 330 moves in the downward direction, the position of the third magnetic force part m3 is moved downward. It is seated in a position corresponding to the second magnetic force part m2. Here, as the first magnetic part m1 and the second magnetic part m2 have the same magnetism, the second magnetic part m2 and the third magnetic part m3 have different magnetism. Accordingly, the movement of the second magnetic force unit m2 and the third magnetic force unit m3 is stopped by the attractive force.

As described above, the tertiary attenuation through the first magnetic force unit m1, the second magnetic force unit m2, and the third magnetic force unit m3 is caused by the double magnetic force attenuation sequentially, so the downward movement It is possible to maximize the damping effect on the wheel.

On the other hand, in the third attenuation process, the measuring unit 315 measures the magnetic force between the rod unit 314 and the first buffer unit 311 in the same way as in the case of the above-described first attenuation to form magnetic force information, and the control unit ( 400) is forwarded. Here, the control unit 400 includes a predetermined and stored minimum magnetic force value, and compares the magnetic force and the minimum magnetic force value in the magnetic force information. It is preferable that the minimum magnetic force value be equal to or smaller than the aforementioned reference magnetic force value.

When the magnitude of the measured magnetic force is smaller than the minimum magnetic force value, the number of turns of the first buffer part 311 existing in the region between the upper and lower ends of the rod part 314 is small, and the magnitude of the magnetic force is small. It means that the lower end 330 moves downward so that the 311 is excessively extended. Accordingly, the control unit 400 induces the fourth-order attenuation to be described later.

On the other hand, when the magnitude of the magnetic force in the magnetic force information is greater than the minimum magnetic force value, the control unit 400 considers that the position of the lower end 330 is not excessively lower, and measures the magnetic force information that is updated every reference time as described above. It is supplied from (315) and compared with the minimum magnetic force value again.

13 is a view showing the fourth-order attenuation according to the downward movement of the lower end 330 according to an embodiment of the present invention.

The fourth damping is carried out when the lower end 330 excessively moves in the downward direction even after the third damping, and is implemented by the first shock absorber 311 and the expansion and contraction part 313 .

The control unit 400 supplies power to the expansion and contraction unit 313 to move the lower end in the upward direction. In this process, the upper ends of the disc part 312 , the rod part 314 , and the first shock absorber 311 move upwardly together, and in response to this, the first shock absorber 311 is reduced by using the restoring force. Accordingly, the lower end 330 connected to the lower end of the first shock absorber 311 moves upward by the first shock absorber 311 .

That is, the fourth damping is achieved by moving the lower end 330 in the upper direction by adding the force in which the elastic unit 313 drags the lower end 330 in the upward direction and the restoring force of the first shock absorber 311 to move the lower side of the wheel. Further movement in the direction is blocked in advance, and the magnitude of vibration in the vertical direction is minimized.

As a more preferred embodiment of the present invention, the control unit 400 based on the marking information transmitted by the imaging unit 240 described above in the implementation process of the first attenuation, the second attenuation, the third attenuation and the fourth attenuation 2 After the differential damping and the fourth damping, the first special damping and the second special damping may be performed, respectively. That is, the control unit 400 adjusts the length by additionally driving the expansion and contraction unit 313 based on the marking information as well as the reception of the above-described magnetic force information and sensing information.

As described above, the control unit 400 compares the area (a1) of the marking unit 230 in the marking information with the reference area (a0) stored in advance. In detail, while the first to fourth attenuation according to FIGS. 9 to 13 is in progress, the imaging unit 240 is a marking unit 230 based on a picture taken at each preset time stored in the marking unit 230 . Calculates the area (a1) of , forms marking information for it, and transmits it to the control unit 400 . Thereafter, the control unit 400 compares the area a1 of the marking unit 230 with the pre-stored reference area a0. Here, the reference area (a0) includes the minimum reference area (a01) and the maximum reference area (a02), and the minimum reference area (a01) is a reference for determining whether the switching unit 100 is pressed in the upward direction, and the maximum The reference width a02 is a criterion for determining whether the switching unit 100 is pressed in the downward direction.

When the width a1 of the marking unit 230 is smaller than or equal to the minimum reference area a01 as shown in FIG. 3A , it means that the switching unit 100 is excessively pressed to be located in the upward direction. That is, FIG. 3A shows a case in which the switching unit 100 also moves upward in the same manner as the wheel is lifted upward in contact with an object such as an obstacle. Accordingly, the control unit 400 performs the primary special attenuation that simultaneously performs the primary attenuation and the secondary attenuation regardless of whether the sensing information and the magnetic force information are received. That is, when the area of the marking unit 230 in the marking information is smaller than the minimum standard area a01 so that the requirement of the first special attenuation is satisfied, the control unit 400 reduces the first buffer unit 311 and expands and contracts at the same time The first special damping is performed to move the part 313 in the downward direction.

As shown in Fig. 3b, when the width a1 of the marking unit 230 is greater than or equal to the maximum reference width a02, it means a situation in which the switching unit 100, which is connected to the wheel and whose position is changed, is excessively located on the lower side. do. In detail, FIG. 3B shows a case in which the switching unit 100 moves excessively in the downward direction as the wheel enters the downward direction in contact with a hole such as a pit. At this time, the control unit 400 performs the second special attenuation that simultaneously performs the third and fourth attenuation regardless of whether the sensing information and the magnetic force information are received. In detail, the second special damping is performed by driving the third damping and expansion/contraction unit 313 that moves the lower end in the upward direction through the magnetic force between the first magnetic force unit, the second magnetic force unit and the third magnetic force unit and moving it in the upper direction. The fourth damping for further moving the lower end 330 upward through the restoring force of the generated first shock absorber 311 is simultaneously performed.

On the other hand, when the width (a1) of the marking unit 230 is larger than the minimum reference area (a01) or smaller than the maximum reference area (a02), the height in the vertical direction of the switching unit 100 is appropriate and the impact is caused by an external force. As a small thing that can be received, the control unit 400 normally performs the above-described first to fourth attenuation.

Through the first special attenuation and the second special attenuation of the control unit 400 corresponding to the width a1 of the marking unit 230 measured as described above, it is flexibly attenuated even when the wheel rapidly moves excessively in the vertical direction. And it is possible to perform a buffer, it is possible to block in advance the situation in which the switching unit 100 is impacted or damaged by an external force.

In addition, since the degree of approach between the upper end 320 and the lower end 330 is double grasped based on the magnetic force between the bar 314 and the first shock absorber 311 and the magnetic force change per reference time, the position of the vehicle body and the wheel is determined. Accuracy can be significantly improved in identification.

In addition, based on the first magnetic force unit (m1), the second magnetic force unit (m2), and the third magnetic force unit (m3), the excessive vertical movement of the second magnetic force unit according to the magnitude of the magnetic force and whether there is an attractive or repulsive force It can be further suppressed, so that the damping effect and the vibration generation blocking effect can be maximized.

Although the present invention has been described with reference to a preferred embodiment, this is only an embodiment, and those of ordinary skill in the art may be able to make various modifications and equivalent other embodiments therefrom. Accordingly, the scope of the present invention is not limited by the above embodiments and the accompanying drawings.

Claims (11)

an arrangement unit 200 in which the switching unit 100 is accommodated; and
Including; is connected to both directions of the arrangement unit 200, the elevating unit 300 for moving the arrangement unit 200 in the vertical direction;
Inside the arrangement unit 200,
The upper end is connected to the lower surface of the conversion unit 100, the lower end is connected to the inner surface of the arrangement unit 200, the damping unit 210 for damping the movement in the vertical direction of the conversion unit 100;
It is formed in the outer direction of the attenuation unit 210, the imaging unit 240 for photographing the disc-shaped marking unit 230 formed on the lower surface of the conversion unit 100; further comprising,
In response to the vertical movement of the switching unit (100), the high-performance inverter module, characterized in that the width of the marking unit (230) photographed by the imaging unit (240) is variable.
The method of claim 1,
It further includes; the support part 220 located in the lower direction of the conversion part 100,
The support part 220 supports a portion of the lower surface of the conversion part 100 in the vertical direction, but does not come into contact with the damping part 210 and the marking part 230 .
3. The method of claim 2,
Further comprising a control unit connected to the imaging unit 240,
The imaging unit 240 measures the area of the marking unit 230 for each preset time stored in advance to form marking information,
The control unit receives the marking information, and compares the pre-stored reference area with the area of the marking unit (230).
4. The method of claim 3,
The elevating unit 300 is,
The body portion 310 of a cylindrical shape with an opening inside;
an upper end 320 positioned in the upper direction of the body 310;
a lower end portion 330 positioned in a lower direction of the body portion 310; and
Located inside the body portion 310, both ends of the first buffer portion 311 in the form of a three-dimensional spiral connected to the upper end 320 and the lower end 330, respectively; includes;
High-performance inverter module, characterized in that when the lower end 330 is pressed in the upward direction, the first shock absorber 311 stops the movement of the lower end 330 in the upward direction by using a restoring force.
5. The method of claim 4,
a disk portion 312 positioned below the upper end portion 320 and connected to the upper end of the first buffer portion 311; and
The high-performance inverter module further comprising a; located between the upper end 320 and the disk portion 312, the expansion and contraction portion 313 for moving the disk portion 312 in the vertical direction.
6. The method of claim 5,
The high-performance inverter module according to claim 1, further comprising: a second shock absorber (316) located inside the body (310), the upper and lower surfaces of which are opened, and the lower end (330) passes through.
7. The method of claim 6,
The second buffer unit 316,
A first magnetic force unit (m1) that is provided in the form of a ring; and
Further comprising; a second magnetic force portion (m2) in the form of an arc cross-section located in the lower direction of the first magnetic force portion (m1);
The second magnetic force part (m2) is provided in plurality and arranged to be spaced apart in the vertical direction,
The high-performance inverter module, characterized in that the first magnetic force unit (m1) and the second magnetic force unit (m2) have different magnetism.
8. The method of claim 7,
The first magnetic force part m1 is provided with a first thickness in the vertical direction,
The second magnetic force part m2 is provided with a second thickness smaller than the first thickness, so that the first magnetic force of the first magnetic force part m1 is greater than the second magnetic force of the second magnetic force part m2. Features a high-performance inverter module.
8. The method of claim 7,
It is formed in the outer direction of the upper end of the lower end 330, and further comprises a ring-shaped third magnetic force portion (m3) disposed to be spaced apart from the inner peripheral surface of the second buffer portion (316),
In the process in which the third magnetic force part m3 approaches the first magnetic force part m1 and the second magnetic force part m2, using magnetic force to stop the movement in the vertical direction of the lower end part 330 Features a high-performance inverter module.
10. The method according to any one of claims 5 to 9,
a rod portion 314 formed on a lower surface of the disk portion 312 and positioned in an inner direction of the first buffer portion 311; and
It further includes; a measuring part 315 located in the outer direction of the first buffer part 311;
The measuring unit 315 measures the magnetic force between the first cushioning unit 311 and the rod unit 314 in response to the vertical expansion and contraction of the first cushioning unit 311, and the magnetic force per predetermined reference time. A high-performance inverter module, characterized in that it calculates the amount of change.
11. The method of claim 10,
An insertion groove 331 is formed on the upper surface of the lower end 330 to correspond to the shape of the rod portion 314,
a protrusion 3141 protruding from a lower surface of the bar 314;
a recognition groove 332 engraved from the insertion groove 331 to correspond to the protrusion 3141; and
The high-performance inverter module, characterized in that it further comprises; the recognition part (333) inserted into the recognition groove (332) and corresponding to the protrusion (3141).

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