Auxiliary device of frequency converter
The conductive plate and pressure plate structure of the inverter auxiliary device automatically compresses the cables, solving the time-consuming, labor-intensive and loose connection problems in the existing technology and achieving stable and safe cable connection.
Patent Information
- Application Number
- CN202422695288.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-06
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-11-06
AI Technical Summary
The existing inverter cable access method requires additional compression terminals, which are time-consuming and labor-intensive to install. The cable stability relies on the tightening of bolts, which can easily cause loose connections, heat, or burning, and is difficult to visually inspect.
The inverter auxiliary device is used to automatically compress the cables through the cooperation of the conductive plate and the pressure plate. The combination of the insulating seat and the spring structure avoids false connection and friction loss, and the limit strip and bolt design ensures a stable connection.
It simplifies the cable installation process, avoids false connections and heat generation, reduces friction loss, improves connection stability and safety, and is easy and convenient to operate.
Smart Images
Figure CN223321492U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of frequency converters, in particular to a frequency converter auxiliary device. Background Art
[0002] The frequency converter is an electric power control device that applies frequency conversion technology and microelectronics technology to control AC motors by changing the frequency of the motor's working power supply. It is widely used in equipment used on motors, such as fans and water pumps. Various auxiliary devices are used when using the frequency converter, some of which are convenient for heat dissipation and some for easy disassembly and assembly.
[0003] Existing inverters need to be connected with cables after installation. There are two main methods for connecting cables. One is to expose the core wire and install it directly through bolts and pressure plates. The other is to expose the core wire and connect it to the cold-pressed terminal. Then, the cold-pressed terminal is pressed into the inverter through bolts and pressure plates.
[0004] If cold-pressed terminals are used for wiring, workers need to carry additional pliers for tightening the terminals and multiple cold-pressed terminals. Making joints is time-consuming and labor-intensive. Regardless of whether cold-pressed terminals are used for wiring, the stability of the subsequent cables depends on whether the bolts are tightened. If they are not tightened, the cables without cold-pressed terminals are prone to falling off. Regardless of whether cold-pressed terminals are installed or not, the joints are prone to false connections, heating, or even burning. It is difficult to visually detect whether the cables are installed tightly, and workers need to pull them, which is not only labor-intensive and cumbersome, but also easily causes damage to the wire core. Utility Model Content
[0005] Based on this, the purpose of the present invention is to provide a frequency converter auxiliary device to solve the technical problems mentioned in the above background technology.
[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an inverter auxiliary device, comprising an inverter main body and a shell, two pressure plates connected to one side of the interior of the shell, an insulating seat connected to the lower interior of the shell, a conductive plate passing through one side of the insulating seat, and a mounting hole provided on one side of the top of the conductive plate; two abutment plates are fixed on one side of the top of the insulating seat, a sliding groove is provided on the inner wall of the shell, an insulating plate is connected to the upper interior of the shell through a spring, and sliding rods are fixed to the outer surface and back of the insulating plate; a conductive seat is connected to the bottom of the insulating plate, and a connecting wire passes through one side of the conductive seat.
[0007] By adopting the above technical solution, after the cable is stripped to expose the core, the core is bent and hooked into the mounting hole, and then the conductive plate is pushed to allow the conductive plate and cable to enter the housing. At the same time, the slope of the pressure plate gradually reduces the gap between the cable and the pressure plate, thereby pressing the cable and the conductive plate tightly to avoid the occurrence of false connection. After power is turned on, the cable is connected to the inverter body through the conductive plate, the conductive seat and the connecting line to connect the current or electrical signal. At the same time, the material of the insulating seat and the pressure plate plays an insulating protection role to prevent the current from being transmitted to the housing; while the insulating seat follows the displacement of the conductive plate, the push plate will lift the slide rod and guide the slide rod through the slide groove, so that the insulating plate and the conductive seat move up, and the insulating plate compresses the spring to avoid large friction loss between the conductive plate and the conductive seat. When the conductive plate slides under the conductive seat and corresponds to the conductive seat, the push plate is also separated from the slide rod. At this time, the insulating plate and the conductive seat are driven downward by the spring, so that the conductive seat and the conductive plate are in close contact to transmit current or electrical signals, and the insulating plate prevents the current from being transmitted to the spring and the housing.
[0008] Furthermore, one side of the pressing plate is sloped, and the two pressing plates are arranged in a mirror image.
[0009] By adopting the above technical solution, the conductive plate retracts into the housing and carries the cable into the housing; at the same time, the slope of the pressure plate gradually reduces the gap between the cable and the pressure plate, and finally the pressure plate presses the cable and the conductive plate tightly to avoid the occurrence of false connection.
[0010] Furthermore, the conductive plate abuts against the conductive seat, and both the conductive plate and the conductive seat are made of copper material.
[0011] By adopting the above technical solution, one side of the top of the conductive plate is displaced to the bottom of the conductive seat and corresponds to the conductive seat. At this time, the abutment plate is separated from the slide rod, and then the insulating plate and the conductive seat are driven downward by the spring, so that the conductive seat and the conductive plate are in close contact to transmit current or electrical signals.
[0012] Furthermore, the abutment plate abuts against the slide bar, and one side of the abutment plate is sloped.
[0013] By adopting the above technical solution, the staff pulls the limit bar to make the insulating seat drive the conductive plate and the resisting plate to move outward. The resisting plate will lift the slide rod and guide the slide rod through the slide groove, so that the insulating plate and the conductive seat move upward. At the same time, the insulating plate compresses the spring to avoid large friction loss between the conductive plate and the conductive seat.
[0014] Furthermore, the insulating plate is slidably connected to the shell through a sliding rod and a sliding groove, and the pressing plate, the insulating seat and the insulating plate are all made of PC plastic.
[0015] By adopting the above technical solution, the push plate will lift the slide rod and guide the slide rod through the slide groove, so that the insulating plate and the conductive seat move upward. At the same time, the material of the insulating seat and the pressure plate plays an insulating protection role to prevent the current from being transmitted to the shell, and the insulating plate prevents the current from being transmitted to the spring and the shell.
[0016] Furthermore, the pressure plate, insulating seat, conductive plate, mounting hole, abutment plate, sliding rod, slide groove, insulating plate, spring, conductive seat and connecting line are provided in multiple groups, and the multiple groups of pressure plates, insulating seat, conductive plate, mounting hole, abutment plate, sliding rod, slide groove, insulating plate, spring, conductive seat and connecting line are distributed at equal distances.
[0017] By adopting the above technical solution, multiple groups of pressure plates, insulating seats, conductive plates, mounting holes, abutment plates, slide bars, slide grooves, insulating plates, springs, conductive seats and connecting wires are provided to facilitate the connection of multiple cables.
[0018] Furthermore, a display screen is installed above one side of the inverter body, a plurality of control buttons are installed below one side of the inverter body, and the housing is connected to the bottom of the inverter body.
[0019] By adopting the above technical solution, the staff can manually control the inverter through the control button, and the display screen can show the current current status.
[0020] Furthermore, the connecting line and the display screen are both electrically connected to the control button.
[0021] By adopting the above technical solution, after power is turned on, the cable is connected to the inverter body through the conductive plate, the conductive seat and the connecting line to connect the current or electrical signal.
[0022] Furthermore, a limiting hole is provided on one side of the top of the shell, a limiting strip is fixed on one side of the insulating seat, and a bolt passes through one side of the top of the limiting strip.
[0023] By adopting the above technical solution, the bolt on the limit bar corresponds to the limit block, and then the staff rotates the bolt to move it downward, so that the bolt enters the limit hole and resists, preventing the limit bar, insulating seat and conductive plate from slipping out, and the movement direction of the bolt is perpendicular to the movement direction of the limit bar, so the bolt does not need to be tightened too much.
[0024] Furthermore, the bolt is threadedly connected to the limiting bar, and the bolt abuts against the limiting hole.
[0025] By adopting the above technical solution, the movement direction of the bolt is perpendicular to the movement direction of the limit bar, so the bolt does not need to be overtightened.
[0026] In summary, the present invention has the following beneficial effects:
[0027] 1. The utility model is provided with a pressing plate, an insulating seat, a conductive plate, a mounting hole, a conductive seat and a connecting wire. After the cable is stripped to reveal the wire core, the wire core is bent and hooked into the mounting hole. Then, the conductive plate is pushed to allow the conductive plate and the cable to enter the housing. At the same time, the slope of the pressing plate gradually reduces the gap between the cable and the pressing plate, thereby pressing the cable and the conductive plate tightly to avoid the occurrence of a false connection. After power is turned on, the cable is connected to the inverter body through the conductive plate, the conductive seat and the connecting wire to connect the current or electrical signal. At the same time, the material of the insulating seat and the pressing plate plays an insulating and protective role to prevent the current from being transmitted to the housing. The cable can be automatically pressed tightly to avoid the occurrence of false connection and heating, and the installation operation is simple and convenient.
[0028] 2. The utility model adopts the arrangement of the push plate, slide bar, slide groove, insulating plate and spring. When the insulating seat follows the displacement of the conductive plate, the push plate will push up the slide bar, and at the same time guide the slide bar through the slide groove, so that the insulating plate and the conductive seat move upward, and the insulating plate compresses the spring to avoid large friction loss between the conductive plate and the conductive seat. When the conductive plate slides under the conductive seat and corresponds to the conductive seat, the push plate is also separated from the slide bar. At this time, the insulating plate and the conductive seat are driven downward by the spring, so that the conductive seat and the conductive plate are in close contact to transmit current or electrical signals, and the insulating plate prevents current from being transmitted to the spring and the housing; thus, the wear of the conductive structure is reduced and the service life of the structure is extended;
[0029] 3. The utility model is provided with a limit bar, a bolt and a limit hole. Through the setting of the limit bar, firstly, the conductive plate and the insulating seat can be pushed and pulled by the limit bar to avoid electric shock to the staff; secondly, when the bolt on the limit bar corresponds to the limit block, the bolt can be rotated to move downward, so that the bolt enters the limit hole and resists, preventing the limit bar, the insulating seat and the conductive plate from sliding out, and the movement direction of the bolt is perpendicular to the movement direction of the limit bar, so the bolt does not need to be tightened too much, and the operation is simple, convenient and labor-saving; it increases stability and avoids structural loosening. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 It is a structural diagram of the utility model;
[0031] Figure 2 This is a schematic diagram of the explosion structure of the utility model;
[0032] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model after wiring;
[0033] Figure 4 This is a schematic diagram of the cross-sectional structure of the utility model during wiring.
[0034] In the figure: 1. Inverter body; 2. Display screen; 3. Control button; 4. Housing; 5. Limit strip; 6. Bolt; 7. Limit hole; 8. Pressure plate; 9. Insulation seat; 10. Conductive plate; 11. Mounting hole; 12. Abutment plate; 13. Slide rod; 14. Slide groove; 15. Insulation plate; 16. Spring; 17. Conductive seat; 18. Connecting wire. DETAILED DESCRIPTION
[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0036] The following describes an embodiment of the present invention based on its overall structure.
[0037] Example 1:
[0038] A frequency converter auxiliary device, such as Figures 1-4 As shown, it includes an inverter body 1 and a shell 4, two pressure plates 8 are connected to one side of the inside of the shell 4, one side of the pressure plate 8 is sloped, and the two pressure plates 8 are mirror-imaged. An insulating seat 9 is connected to the lower part of the inside of the shell 4, and a conductive plate 10 is passed through one side of the insulating seat 9. A mounting hole 11 is opened on one side of the top of the conductive plate 10. The staff peels the cable to expose the core, and then bends the core to hook the mounting hole 11. After that, the staff pushes the conductive plate 10 to make the insulating seat 9 drive the conductive plate 10 and the abutment plate 12 to reset. At this time, the conductive plate 10 retracts into the shell 4 and carries the cable into the shell 4; at the same time, the slope of the pressure plate 8 gradually reduces the gap between the cable and the pressure plate 8, and finally the pressure plate 8 presses the cable and the conductive plate 10 tightly to avoid the occurrence of false connection;
[0039] Two abutment plates 12 are fixed on one side of the top of the insulating seat 9, and one side of the abutment plate 12 is sloped. A slide groove 14 is provided on the inner wall of the shell 4. An insulating plate 15 is connected to the upper part of the inside of the shell 4 through a spring 16. The pressure plate 8, the insulating seat 9 and the insulating plate 15 are all made of PC plastic. The material of the insulating seat 9 and the pressure plate 8 plays an insulating protection role to prevent the current from being transmitted to the shell 4, and the insulating plate 15 prevents the current from being transmitted to the spring 16 and the shell 4; a sliding rod 13 is fixed on the outer surface and back of the insulating plate 15, and the abutment plate 12 abuts against the sliding rod 13. The insulating plate 15 is slidably connected to the shell 4 through the sliding rod 13 and the slide groove 14. The abutment plate 12 will lift the sliding rod 13 and guide the sliding rod 13 through the slide groove 14, so that the insulating plate 15 and the conductive seat 17 move upward. At the same time, the insulating plate 15 compresses the spring 16 to avoid large friction loss between the conductive plate 10 and the conductive seat 17;
[0040] A conductive seat 17 is connected to the bottom of the insulating plate 15, and the conductive plate 10 is in contact with the conductive seat 17. The conductive plate 10 and the conductive seat 17 are both made of copper material. A connecting line 18 runs through one side of the conductive seat 17. After power is turned on, the cable is connected to the inverter body 1 through the conductive plate 10, the conductive seat 17 and the connecting line 18 to connect the current or electrical signal; the pressure plate 8, the insulating seat 9, the conductive plate 10, the mounting hole 11, the abutment plate 12, the slide bar 13, the slide groove 14, the insulating plate 15, the spring 16, the conductive seat 17 and the connecting line 18 are all provided in multiple groups, and the multiple groups of pressure plates 8, the insulating seat 9, the conductive plate 10, the mounting hole 11, the abutment plate 12, the slide bar 13, the slide groove 14, the insulating plate 15, the spring 16, the conductive seat 17 and the connecting line 18 are all equidistantly distributed, which is convenient for installing multiple cables.
[0041] See Figure 1 In the above embodiment, a display screen 2 is installed above one side of the inverter main body 1, and a plurality of control buttons 3 are installed below one side of the inverter main body 1. The connecting line 18 and the display screen 2 are electrically connected to the control buttons 3. The housing 4 is connected to the bottom of the inverter main body 1. The staff can manually control the inverter through the control buttons 3, and the display screen 2 can display the current current status.
[0042] Example 2:
[0043] On the basis of the above embodiment 1, in order to prevent the cable from falling off, the following settings are now adopted.
[0044] See Figures 1-4 In the above embodiment, a limiting hole 7 is opened on one side of the top of the shell 4, and a limiting strip 5 is fixed on one side of the insulating seat 9. A bolt 6 is passed through one side of the top of the limiting strip 5. The bolt 6 is threadedly connected to the limiting strip 5, and the bolt 6 abuts against the limiting hole 7. The bolt 6 on the limiting strip 5 corresponds to the limiting block. Then the staff rotates the bolt 6 to move it downward, so that the bolt 6 enters the limiting hole 7 and abuts, preventing the limiting strip 5, the insulating seat 9 and the conductive plate 10 from sliding out, and the movement direction of the bolt 6 is perpendicular to the movement direction of the limiting strip 5, so the bolt 6 does not need to be tightened too much.
[0045] The implementation principle of the present utility model is as follows: first, when wiring is required, the staff first rotates the bolt 6 to move the bolt 6 upward and out of the limiting hole 7. Then the staff pulls the limiting bar 5 to make the insulating seat 9 drive the conductive plate 10 and the abutment plate 12 to move outward. At this time, the conductive plate 10 extends from the side of the housing 4; at the same time, the abutment plate 12 will push up the slide bar 13 and guide the slide bar 13 through the slide groove 14, so that the insulating plate 15 and the conductive seat 17 move upward. At the same time, the insulating plate 15 compresses the spring 16 to avoid large friction loss between the conductive plate 10 and the conductive seat 17.
[0046] The staff peels the cable to expose the core, and then bends the core to hook the installation hole 11; then the staff pushes the limit bar 5 to make the insulating seat 9 drive the conductive plate 10 and the abutment plate 12 to reset, at this time the conductive plate 10 retracts into the housing 4 and carries the cable into the housing 4; at the same time, the slope of the pressing plate 8 gradually reduces the gap between the cable and the pressing plate 8, and finally the pressing plate 8 presses the cable and the conductive plate 10 tightly to avoid the occurrence of false connection; then the top side of the conductive plate 10 moves to the bottom of the conductive seat 17 and corresponds to the conductive seat 17, At this time, the support plate 12 is separated from the slide rod 13, and then the spring 16 drives the insulating plate 15 and the conductive seat 17 to move downward, so that the conductive seat 17 is in close contact with the conductive plate 10 to transmit current or electrical signals; and the bolt 6 on the limit bar 5 corresponds to the limit block, and then the staff rotates the bolt 6 to move it downward, so that the bolt 6 enters the limit hole 7 and resists, preventing the limit bar 5, the insulating seat 9 and the conductive plate 10 from sliding out, and the movement direction of the bolt 6 is perpendicular to the movement direction of the limit bar 5, so the bolt 6 does not need to be tightened too much;
[0047] After power is turned on, the cable is connected to the inverter body 1 through the conductive plate 10, the conductive seat 17 and the connecting line 18 to connect the current or electrical signal. At the same time, the material of the insulating seat 9 and the pressure plate 8 plays an insulating protection role to prevent the current from being transmitted to the shell 4, and the insulating plate 15 prevents the current from being transmitted to the spring 16 and the shell 4; at the same time, the staff can manually control the inverter through the control button 3, and the display screen 2 can display the current current status.
[0048] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not limitations on the present invention. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and purpose of the present invention, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.
Claims
1. A frequency converter auxiliary device, comprising a frequency converter body (1) and a housing (4), characterized in that: Two pressure plates (8) are connected to one side of the interior of the shell (4); an insulating seat (9) is connected to the lower part of the interior of the shell (4); a conductive plate (10) is passed through one side of the insulating seat (9); and a mounting hole (11) is provided on one side of the top of the conductive plate (10); two abutment plates (12) are fixed to one side of the top of the insulating seat (9); a sliding groove (14) is provided on the inner wall of the shell (4); an insulating plate (15) is connected to the upper part of the interior of the shell (4) through a spring (16), and a sliding rod (13) is fixed to the outer surface and back of the insulating plate (15); a conductive seat (17) is connected to the bottom of the insulating plate (15), and a connecting line (18) is passed through one side of the conductive seat (17).
2. The inverter auxiliary device according to claim 1, characterized in that: One side of the pressing plate (8) is sloped, and the two pressing plates (8) are arranged in a mirror image.
3. The inverter auxiliary device according to claim 1, characterized in that: The conductive plate (10) is in contact with the conductive seat (17), and both the conductive plate (10) and the conductive seat (17) are made of copper material.
4. The inverter auxiliary device according to claim 1, characterized in that: The abutment plate (12) abuts against the slide bar (13), and one side of the abutment plate (12) is in a slope shape.
5. The inverter auxiliary device according to claim 4, characterized in that: The insulating plate (15) is slidably connected to the housing (4) via a sliding rod (13) and a sliding groove (14), and the pressing plate (8), the insulating seat (9) and the insulating plate (15) are all made of PC plastic.
6. The inverter auxiliary device according to claim 5, characterized in that: The pressing plate (8), insulating seat (9), conductive plate (10), mounting hole (11), abutting plate (12), slide bar (13), slide groove (14), insulating plate (15), spring (16), conductive seat (17) and connecting line (18) are all provided in multiple groups, and the multiple groups of pressing plates (8), insulating seat (9), conductive plate (10), mounting hole (11), abutting plate (12), slide bar (13), slide groove (14), insulating plate (15), spring (16), conductive seat (17) and connecting line (18) are all distributed at equal distances.
7. The inverter auxiliary device according to claim 1, characterized in that: A display screen (2) is installed above one side of the inverter body (1), a plurality of control buttons (3) are installed below one side of the inverter body (1), and the housing (4) is connected to the bottom of the inverter body (1).
8. The inverter auxiliary device according to claim 7, characterized in that: The connecting line (18) and the display screen (2) are both electrically connected to the control button (3).
9. The inverter auxiliary device according to claim 1, characterized in that: A limiting hole (7) is provided on one side of the top of the housing (4), a limiting strip (5) is fixed on one side of the insulating seat (9), and a bolt (6) passes through one side of the top of the limiting strip (5).
10. The inverter auxiliary device according to claim 9, characterized in that: The bolt (6) is threadedly connected to the limiting strip (5), and the bolt (6) abuts against the limiting hole (7).