Mobile terminal anti-seismic remote monitoring frequency converter
By designing anti-vibration brackets on the frequency converter and using a combination of connectors and damping rubber, nonlinear absorption of vibrations at different frequencies is achieved, solving the problem of poor absorption of vibrations in all directions by traditional anti-vibration pads, improving the vibration damping effect on mobile devices, and supporting remote operation and status display.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG LUOKA ELECTRIC CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-07-21
AI Technical Summary
When frequency converters are subjected to vibration on mobile devices, the components are prone to fatigue and performance degradation. Traditional anti-vibration pads have limited absorption effect on vibrations in all directions and are difficult to achieve good vibration reduction effect.
The design employs an anti-seismic bracket, which includes parallel front and rear fixed ears connected by connectors. The connectors are covered with damping rubber, and the expansion joints are filled with damping rubber. The connectors have a 1/4 circular arc cross-section with unequal radii at both ends. Combined with the damping effect of the damping rubber material, nonlinear absorption of vibrations at different frequencies is achieved.
It effectively absorbs vibrations of different frequencies, improves shock absorption, maintains uniform stress on the anti-seismic bracket, has a compact structure, and supports remote operation of the frequency converter and real-time display of status parameters.
Smart Images
Figure CN224538039U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of frequency converters, specifically to a mobile-terminal anti-vibration remote monitoring frequency converter. Background Technology
[0002] A frequency converter is a power control device that uses frequency conversion technology and microelectronics to control an AC motor by changing the frequency of the motor's power supply. It is used in various mechanical equipment. When applied to mobile equipment, it is inevitably affected by vibration. Components in the frequency converter, such as integrated circuits and capacitors, are prone to fatigue under prolonged vibration, leading to performance degradation, poor contact in the frequency converter connectors, and abnormal electrical signal transmission, affecting the normal operation of the equipment. Currently, adding anti-vibration pads around the frequency converter can absorb vibration and reduce impact, minimizing the impact of vibration on the frequency converter. However, since mobile equipment (such as mining machinery) vibrates from all directions during movement or operation, traditional anti-vibration pads have limited absorption effect on vibrations from all directions, making it difficult to achieve a good vibration reduction effect. Utility Model Content
[0003] Based on the above problems, the purpose of this utility model is to provide a mobile anti-vibration remote monitoring frequency converter that is suitable for mobile machinery, easy to install, and has a good shock absorption effect.
[0004] To address the above issues, the following technical solution is provided: a mobile-terminal anti-vibration remote monitoring frequency converter, comprising a frequency converter body, a heat dissipation bracket / device located at the rear of the frequency converter body, the heat dissipation bracket / device having diagonally arranged mounting portions, the mounting portions having mounting holes; further comprising an anti-vibration bracket, the anti-vibration bracket including front and rear fixed ears arranged parallel to each other and spaced apart, the front and rear fixed ears being connected by a connector, the connector having a plurality of expansion joints arranged from the front fixed ears to the rear fixed ears, the connector being covered with shock-absorbing rubber and the shock-absorbing rubber filling the expansion joints; the rear fixed ear being fixedly connected to the mounting holes, the front fixed ear being located on the vertical plane of the sum of the centers of gravity of the frequency converter body and the heat dissipation bracket / device in the front-rear direction.
[0005] The present invention is further configured such that the cross-sectional shape of the connector is arc-shaped; the radius of the arc at the end of the connector connected to the front fixing ear is r1, and the radius of the arc at the end of the connector connected to the rear fixing ear is r2, wherein the radius of r1 is greater than that of r2; and the centers of r1 and r2 are coaxial with the center of the connector.
[0006] The present invention is further configured such that the front fixing ear, the rear fixing ear, the connecting piece and its expansion joint are integrally stamped from metal.
[0007] The present invention is further configured such that the front fixing ear and the rear fixing ear correspond to the two ends of the connector; the expansion joint is divided into two groups, the first group is opened from the first side of the connector towards the second side, and the second group is opened from the second side of the connector towards the first side; the expansion joint of the second group is located between the adjacent expansion joints of the first group.
[0008] The present invention is further configured such that the end of the expansion joint has an arc-shaped transition; the sidewall of the connector between adjacent expansion joints transitions through a rounded surface.
[0009] The present invention is further configured such that the shock-absorbing adhesive is fixed to the outer wall of the connector and the inner wall of the expansion joint by integral vulcanization molding.
[0010] The present invention is further configured such that the heat sink bracket / device is provided with a clearance groove at a diagonal position, and the mounting part is located on the rear wall of the heat sink bracket / device; the rear fixing ear is located in the clearance groove and is fixedly connected to the mounting part by a first bolt; the end of the connector with the front fixing ear extends forward of the inverter body or the heat sink bracket / device while gradually moving away from the clearance groove.
[0011] The present invention is further configured such that the screw head of the first bolt abuts against and is interference-fitted with the damping rubber.
[0012] The present invention is further configured such that the rear fixing ear is located inside the connector and is circular in shape, and the rear fixing ear is provided with a rear fixing hole; the front fixing ear is located outside the connector and is arranged in a fan shape, and both ends of the front fixing ear in the fan shape direction are provided with front fixing holes.
[0013] The present invention is further configured to include a mounting base plate, wherein the mounting base plate is provided with an accommodating opening through which the heat sink bracket / device and / or the inverter body passes, and a buffer gap is left between the inner wall of the accommodating opening and the outer wall of the heat sink bracket / device and / or the inverter body; a screw hole adapted to the front fixing hole is provided on the mounting base plate corresponding to the diagonal position of the accommodating opening, and the front fixing ear is located in front of the mounting base plate and is fixed to the screw hole by a second bolt.
[0014] The present invention is further configured such that the inverter body is provided with a control signal transmitting module, a receiving module and a power conversion module.
[0015] The beneficial effects of this utility model are: 1. The rear mounting lug is used to connect the heat sink bracket / heat sink mounting part. Through the connection of the connector, the front mounting lug is made to reach the vertical plane of the center of gravity of the inverter body and the heat sink bracket / heat sink in the front-rear direction, so that the stress of the anti-vibration bracket corresponding to each mounting part is kept the same. The expansion joint allows the two ends of the connector to form a movement in the XYZ spatial direction. When the vibration is transmitted from the front mounting lug to the rear mounting lug through the connector, it can be effectively filtered by the expansion and compression of the expansion joint. Considering that the vibration types are divided into high frequency, medium frequency and low frequency, it is difficult for the connector itself and the expansion joint to effectively absorb various types of frequencies. Therefore, the connector is covered with damping rubber, and the damping rubber enters into the expansion joint. The damping effect is achieved by the asymmetry between the damping rubber material and the connector material, which improves the absorption effect of vibration of different frequencies. 2. The cross-section of the connector is a 1 / 4 circular arc. When it is located at the upper left corner of the heat sink bracket / device, the connector is in the second quadrant; when it is located at the upper right corner of the heat sink bracket / device, the connector is in the first quadrant; when it is located at the lower left corner of the heat sink bracket / device, the connector is in the third quadrant; and when it is located at the lower right corner of the heat sink bracket / device, the connector is in the fourth quadrant. The unequal radii at both ends of the connector allow for different opening lengths of the expansion joint at each location, thereby achieving nonlinear absorption of vibration frequencies and better filtering vibrations of different frequencies. 3. The damping rubber is vulcanized and molded with the connector, and then bonded and fixed to the outer wall of the connector and the inner wall of the expansion joint to ensure the connection strength between the two materials. 4. The recessed groove allows the heat sink bracket / device to be recessed at the diagonal position, providing installation space for the rear fixing ear of the anti-vibration bracket and effectively reducing the overall outline size, making the overall structure more compact; as the end of the connector with the front fixing ear gradually moves away from the recessed groove, its inner sidewall just avoids the top corner of the inverter body and retains a certain gap to provide shock absorption space. 5. The damping rubber penetrates into the head of the first bolt after it has been tightened, so that the head of the first bolt comes into contact with and is squeezed by the damping rubber after it has been tightened, which can help prevent the first bolt from loosening. 6. Through RS485 network or wireless communication technology, remote operation of frequency converters in industrial scenarios can be realized. This device supports the start-stop, speed regulation, forward and reverse rotation of the frequency converter and can display status parameters such as operating frequency, output voltage, and current in real time. Attached Figure Description
[0016] Figure 1 This is a first-person perspective three-dimensional structural diagram of the present invention in its installed state.
[0017] Figure 2 This is a second-view three-dimensional structural diagram of the present invention in its installed state.
[0018] Figure 3This is a first-view three-dimensional structural diagram of the present invention before installation.
[0019] Figure 4 This is a schematic diagram of the overall three-dimensional structure of the present invention from a second perspective before installation.
[0020] Figure 5 This is a first-view three-dimensional structural diagram of the seismic bracing of this utility model.
[0021] Figure 6 This is a two-dimensional structural diagram of the seismic bracing of this utility model from a second perspective.
[0022] Figure 7 This is a three-dimensional structural diagram of the earthquake-resistant support of this utility model.
[0023] Figure 8 This is a full-section three-dimensional structural diagram of the seismic bracing of this utility model.
[0024] The labels in the diagram have the following meanings: 10-Inverter body; 11-Heat sink bracket / device; 111-Mounting part; 112-Mounting hole; 113-Leaning groove; 20-Anti-vibration bracket; 21-Front mounting ear; 211-Front mounting hole; 22-Rear mounting ear; 221-Rear mounting hole; 23-Connector; 231-Expansion joint; 2311-Curved surface; 2312-Rounded surface; 24-Shock damping rubber; 30-First bolt; 31-Screw head; 40-Mounting base plate; 41-Accommodation opening; 42-Buffer gap; 43-Screw hole; 50-Second bolt. Detailed Implementation
[0025] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.
[0026] refer to Figures 1 to 8 ,like Figures 1 to 8The illustrated mobile anti-vibration remote monitoring frequency converter includes a frequency converter body 10, with a heat dissipation bracket / device 11 at the rear of the frequency converter body 10. The heat dissipation bracket / device 11 has diagonally arranged mounting portions 111, and the mounting portions 111 have mounting holes 112. It also includes an anti-vibration bracket 20, which includes a front fixing ear 21 and a rear fixing ear 22 arranged parallel to each other and spaced apart. The front fixing ear 21 and the rear fixing ear 22 are connected by a connector 23. The connector 23 has a plurality of expansion joints 231 arranged from the front fixing ear 21 to the rear fixing ear 22. The connector 23 is covered with shock-absorbing rubber 24 and the shock-absorbing rubber 24 fills the expansion joints 231. The rear fixing ear 22 is fixedly connected to the mounting hole 112. The front fixing ear 21 is located on the vertical plane of the sum of the centers of gravity of the frequency converter body 10 and the heat dissipation bracket / device 11 in the front-rear direction (corresponding to the position of the mounting base plate 40).
[0027] In the above structure, the rear mounting ear 22 is used to connect the mounting part 111 of the heat sink bracket / device 11. The connection via the connector 23 allows the front mounting ear 21 to reach the vertical plane of the center of gravity of both the inverter body 10 and the heat sink bracket / device 11 in the front-rear direction. This ensures that the anti-vibration brackets 20 corresponding to each mounting part 111 experience the same force. (For example, if the front mounting ear 21 is located behind the vertical plane of the center of gravity, meaning the weight of the entire front end of the inverter is greater than the rear end, the front end of the inverter sinks, causing the upper anti-vibration bracket 20 to experience tensile force, while the lower anti-vibration bracket 20 experiences compressive force, resulting in inconsistent force on the upper and lower anti-vibration brackets 20 in the height direction; if the front mounting ear 21 is located in front of the vertical plane of the center of gravity, meaning the weight of the entire front end of the inverter is less than the rear end, the rear ....) The 0 has compressive force, while the lower seismic support 20 has tensile force, resulting in inconsistent force on the upper and lower seismic support 20 in the height direction. The expansion joint 231 allows for movement in the XYZ spatial direction between the two ends of the connector 23. When vibration is transmitted from the front fixed ear 21 to the rear fixed ear 22 through the connector 23, it can be effectively filtered by the expansion and compression of the expansion joint 231. Considering that vibrations are divided into high frequency, medium frequency, and low frequency, it is difficult for the connector 23 and the expansion joint 231 alone to effectively absorb various types of frequencies. Therefore, the connector 23 is wrapped with damping rubber 24, and the damping rubber 24 enters the expansion joint 231. The damping effect is achieved by the asymmetry between the material of the damping rubber 24 and the material of the connector 23, thereby improving the absorption effect of vibrations of different frequencies.
[0028] In this embodiment, the cross-sectional shape of the connector 23 is arc-shaped; the radius of the arc at the end of the connector 23 connected to the front fixing ear 21 is r1, and the radius of the arc at the end of the connector 23 connected to the rear fixing ear 22 is r2, and the radius of r1 is greater than that of r2; the centers of r1 and r2 are coaxial with the center of the connector 23.
[0029] In the above structure, the cross-section of the connector 23 is a 1 / 4 circular arc. When it is located at the upper left corner of the heat sink bracket / device 11, the connector 23 is located in the second quadrant; when it is located at the upper right corner of the heat sink bracket / device 11, the connector 23 is located in the first quadrant; when it is located at the lower left corner of the heat sink bracket / device 11, the connector 23 is located in the third quadrant; and when it is located at the lower right corner of the heat sink bracket / device 11, the connector 23 is located in the fourth quadrant. The unequal radii at both ends of the connector 23 allow the expansion joints 231 at each position to form different opening lengths, thereby achieving nonlinear absorption of vibration frequencies and better filtering vibrations of different frequencies.
[0030] In this embodiment, the front fixing ear 21, the rear fixing ear 22, the connector 23, and the expansion joint 231 are integrally stamped metal.
[0031] The above structure is easy to mold and has the advantage of simple process.
[0032] In this embodiment, the front fixing ear 21 and the rear fixing ear 22 correspond to the two ends of the connector 23; the expansion joint 231 is divided into two groups, the first group is opened from the first side of the connector 23 towards the second side, and the second group is opened from the second side of the connector 23 towards the first side; the expansion joint 231 of the second group is located between the adjacent expansion joints 231 of the first group.
[0033] In the above structure, the two sets of expansion joints 231 are interwoven to make the connecting member 23 present an S-shaped shock-absorbing structure.
[0034] In this embodiment, the end of the expansion joint 231 is transitioned by an arc-shaped surface 2311; the sidewall of the connector 23 between adjacent expansion joints 231 is transitioned by a rounded surface 2312.
[0035] The above structure effectively avoids stress concentration at the end of expansion joint 231.
[0036] In this embodiment, the shock-absorbing rubber 24 is fixed to the outer wall of the connector 23 and the inner wall of the expansion joint 231 by integral vulcanization molding.
[0037] In the above structure, the material is bonded and fixed to the outer wall of the connector 23 and the inner wall of the expansion joint 231 through vulcanization molding, thus ensuring the connection strength between the two materials.
[0038] In this embodiment, the heat sink bracket / device 11 is provided with a relief groove 113 at a diagonal position, and the mounting part 111 is located on the rear wall of the heat sink bracket / device 11; the rear fixing ear 22 is located in the relief groove 113 and is fixedly connected to the mounting part 111 by the first bolt 30; the end of the connector 23 with the front fixing ear 21 extends forward of the inverter body 10 or the heat sink bracket / device 11 while gradually moving away from the relief groove 113.
[0039] In the above structure, the recess 113 allows the heat sink bracket / device 11 to be recessed at the diagonal position, providing installation space for the rear fixing ear 22 of the anti-vibration bracket 20, and effectively reducing the overall outline size, making the overall structure more compact; as the end of the connector 23 with the front fixing ear 21 gradually moves away from the recess 113, its inner sidewall just avoids the top corner of the inverter body 10 and retains a certain gap to provide shock absorption space.
[0040] In this embodiment, the screw head 31 of the first bolt 30 abuts against and is interference-fitted with the damping rubber 24.
[0041] In the above structure, the damping adhesive 24 penetrates to the position of the screw head 31 of the first bolt 30 after it is tightened, so that the screw head 31 of the first bolt 30 comes into contact with and is squeezed by the damping adhesive 24 after it is tightened, which can play an auxiliary role in preventing the first bolt 30 from loosening.
[0042] In this embodiment, the rear fixing ear 22 is located inside the connector 23 and is circularly arranged, and the rear fixing ear 22 is provided with a rear fixing hole 221; the front fixing ear 21 is located outside the connector 23 and is arranged in a fan shape, and both ends of the front fixing ear 21 in the fan-shaped direction are provided with front fixing holes 211.
[0043] In the above structure, the front fixing ear 21 is provided with two front fixing holes 211, which can effectively improve the fixing stability.
[0044] In this embodiment, a mounting base plate 40 is also included. The mounting base plate 40 is provided with a receiving opening 41 through which the heat sink bracket / device 11 and / or the inverter body 10 pass. A buffer gap 42 is left between the inner wall of the receiving opening 41 and the outer wall of the heat sink bracket / device 11 and / or the inverter body 10. A screw hole 43 adapted to the front fixing hole 211 is provided on the mounting base plate 40 at a diagonal position corresponding to the receiving opening 41. The front fixing ear 21 is located in front of the mounting base plate 40 and is fixed to the screw hole 43 by a second bolt 50.
[0045] In the above structure, the screw hole 43 is formed by stamping and stretching followed by tapping or by hot-melt drilling followed by tapping, or by welding a nut to the mounting base plate 40 to form the screw hole 43.
[0046] In this embodiment, the inverter body 10 is provided with a control signal transmitting module, a receiving module and a power conversion module (existing technology, not shown in the figure).
[0047] In the above structure, remote operation of frequency converters in industrial scenarios can be realized through RS485 network or wireless communication technology. The device supports operation control of frequency converters such as start-stop, speed adjustment, forward and reverse rotation, and can display status parameters such as operating frequency, output voltage, and current in real time.
[0048] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model. These improvements and modifications assumed above should also be considered within the protection scope of the present utility model.
Claims
1. A mobile anti-vibration remote monitoring frequency converter, comprising a frequency converter body, wherein a heat dissipation bracket / device is provided at the rear of the frequency converter body, characterized in that: The heat dissipation bracket / unit is provided with diagonally arranged mounting portions, each with mounting holes; it also includes a seismic support, which includes front and rear fixed ears arranged parallel to each other and spaced apart. The front and rear fixed ears are connected by a connector, which has several expansion joints arranged from the front to the rear fixed ears. The connector is covered with damping rubber, which fills the expansion joints; the rear fixed ear is fixedly connected to the mounting holes, and the front fixed ear is located on the vertical plane of the sum of the centers of gravity of the inverter body and the heat dissipation bracket / unit in the front-rear direction.
2. The mobile-terminal anti-seismic remote monitoring frequency converter according to claim 1, characterized in that: The cross-sectional shape of the connector is arc-shaped; the radius of the arc at the end of the connector connected to the front fixing ear is r1, and the radius of the arc at the end of the connector connected to the rear fixing ear is r2, wherein the radius of r1 is greater than that of r2; the centers of r1 and r2 are coaxial with the center of the connector.
3. The mobile-terminal anti-seismic remote monitoring frequency converter according to claim 2, characterized in that: The front fixing lug, rear fixing lug, connector, and expansion joint are integrally stamped metal.
4. A mobile-terminal anti-seismic remote monitoring frequency converter according to claim 2, characterized in that: The front fixing lug and the rear fixing lug correspond to the two ends of the connector; the expansion joint is divided into two groups, the first group is opened from the first side of the connector towards the second side, and the second group is opened from the second side of the connector towards the first side; the expansion joint of the second group is located between the adjacent expansion joints of the first group.
5. A mobile-terminal anti-seismic remote monitoring frequency converter according to claim 4, characterized in that: The ends of the expansion joints are curved; the sidewalls of the connectors between adjacent expansion joints are rounded.
6. A mobile-terminal anti-seismic remote monitoring frequency converter according to claim 1, characterized in that: The shock-absorbing adhesive is fixed to the outer wall of the connector and the inner wall of the expansion joint by integral vulcanization molding.
7. A mobile-terminal anti-seismic remote monitoring frequency converter according to claim 2, characterized in that: The heat sink bracket / device has a relief groove at a diagonal position, and the mounting part is located on the rear wall of the heat sink bracket / device; the rear fixing ear is located in the relief groove and is fixedly connected to the mounting part by the first bolt; the end of the connector with the front fixing ear extends towards the front of the inverter body or the heat sink bracket / device while gradually moving away from the relief groove.
8. A mobile-terminal anti-seismic remote monitoring frequency converter according to claim 7, characterized in that: The head of the first bolt abuts against the damping rubber and is in an interference fit.
9. A mobile-terminal anti-seismic remote monitoring frequency converter according to claim 1, characterized in that: The rear fixing ear is located inside the connector and is circular in shape, and the rear fixing ear is provided with a rear fixing hole; the front fixing ear is located outside the connector and is arranged in a fan shape, and both ends of the front fixing ear in the fan shape direction are provided with front fixing holes.
10. A mobile-terminal anti-seismic remote monitoring frequency converter according to claim 9, characterized in that: It also includes a mounting base plate, which has an accommodating opening through which the heat sink bracket / device or / and the inverter body passes, and a buffer gap is left between the inner wall of the accommodating opening and the outer wall of the heat sink bracket / device or / and the inverter body; the mounting base plate is provided with screw holes adapted to the front fixing holes at the diagonal position corresponding to the accommodating opening, and the front fixing ears are located at the front of the mounting base plate and are fixed to the screw holes by a second bolt.