Convenient-to-install machine core structure for frequency converter

Abstract

The utility model discloses a convenient-to-install machine core structure for a frequency converter, which relates to the technical field of frequency converter installation structures and comprises a case and a machine core plate, an installation substrate is fixedly installed inside the case, an installation mechanism is arranged between the machine core plate and the installation substrate, and a machine core element body and a wiring terminal are respectively installed on the upper surface of the machine core plate. And a circuit fixing mechanism is arranged on the upper surface of the machine core plate. Through the arrangement of the installation mechanism, the insertion plate on the lower surface of the machine core plate is inserted into the insertion opening of the installation base plate, the limiting toothed plate is pushed to be connected with the clamping groove of the insertion plate in a clamped mode under the action of the spring, the machine core plate can be fixed to the installation base plate under the limitation of the limiting toothed plate, and then the assembly work can be completed; the push rod is pushed to drive the limiting toothed plate to retract into the limiting groove, so that the limiting toothed plate is separated from the clamping groove, at the moment, the machine core plate and the installation base plate can be detached and separated, the machine core does not need to be installed in a bolt fastening mode, and convenience is provided for assembly work of the machine core.

Description

Technical Field

[0001] This utility model relates to the field of inverter installation structure technology, and in particular to an inverter core structure that is easy to install. 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. A frequency converter mainly consists of a rectification (AC to DC) unit, a filtering unit, an inverter (DC to AC) unit, a braking unit, a drive unit, a detection unit, and a microprocessor unit. Among these, the motor mechanism is one of the main components of the frequency converter.

[0003] Patent document CN217135357U discloses a frequency converter chassis, including a mounting plate, a capacitor assembly, a main power board, and a heat sink. The mounting plate comprises a first region and a second region. The capacitor assembly is located in the first region and includes a capacitor plate and a bus capacitor. The capacitor plate is positioned on one side of the mounting plate, and a clearance hole adapted to accommodate the bus capacitor is provided on the mounting plate. The bus capacitor extends through the clearance hole to the other side of the mounting plate. The main power board is located on the side of the capacitor plate opposite to the mounting plate, so that the capacitor plate is positioned between the mounting plate and the main power board. The heat sink is mounted on the side of the mounting plate opposite to the capacitor plate and located in the second region. This rational layout of the frequency converter chassis structure saves space, enables modular installation, reduces maintenance costs, and can meet the needs of multiple applications.

[0004] In actual use, the above solution involves fastening the core mechanism to the mounting base plate with bolts. This installation method requires workers to carry a large number of bolts and screwdrivers, making the operation cumbersome and causing inconvenience to the assembly of the core mechanism and the frequency converter. Utility Model Content

[0005] This utility model discloses a core structure for a frequency converter that is easy to install, aiming to solve the technical problem of inconvenient installation of existing frequency converter installation structures.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A frequency converter core structure that is easy to install includes a chassis and a core plate. A mounting base plate is fixedly installed inside the chassis. A mounting mechanism is provided between the core plate and the mounting base plate. Core component bodies and wiring terminals are respectively installed on the upper surface of the core plate. A wiring fixing mechanism is provided on the upper surface of the core plate.

[0008] The mounting mechanism includes two symmetrical insert plates fixedly mounted on the lower surface of the core plate. The surface of the mounting base plate has two slots corresponding to the positions of the two insert plates. The inner wall of the slot has a limiting groove. A spring is fixedly installed on the inner wall of the limiting groove. A limiting tooth plate is fixedly installed on the end of the spring away from the inner wall of the limiting groove. The surface of the insert plate has a slot that matches the limiting tooth plate. The front of the mounting base plate has a sliding strip opening that extends into the limiting groove. A push rod that is fixedly connected to the front of the limiting tooth plate is slidably connected to the inner wall of the sliding strip opening.

[0009] In a preferred embodiment, a limiting slider is provided on the back of the limiting tooth plate, and a limiting groove is provided on the inner rear wall of the limiting groove for the limiting slider to slide.

[0010] By setting a limit slider, the limit toothed plate can move smoothly within the limit groove under the guidance of the limit slider.

[0011] In a preferred embodiment, the line fixing mechanism includes a mounting groove formed on the upper surface of the core plate and adjacent to the terminal block position. A rotating opening extending through the mounting groove is formed on the right side surface of the core plate. An operating rod is rotatably connected to the inner wall of the rotating opening. The left end of the operating rod extends into the mounting groove and is fixedly connected to a bidirectional threaded rod. Two symmetrical threaded blocks are threadedly connected to the surface of the bidirectional threaded rod. A first moving plate and a second moving plate are fixedly installed on the upper surfaces of the two threaded blocks, respectively. A wire placement groove is formed on the surface of both the first moving plate and the second moving plate.

[0012] In a preferred embodiment, the lower surface of the threaded block is provided with a guide slider, and the inner bottom wall of the mounting groove is provided with a guide groove for the guide slider to slide.

[0013] By setting a guide slider, under the guidance of the guide slider, the two threaded blocks can drive the first moving plate and the second moving plate to move closer or in opposite directions respectively through the rotation of the bidirectional threaded rod.

[0014] In a preferred embodiment, the number of the wire placement slots is the same as the number of the terminal block slots, and the positions of the wire placement slots and the terminal block slots correspond to each other.

[0015] In a preferred embodiment, the lower surface of the mounting substrate is provided with a heat dissipation opening, the inner wall of the heat dissipation opening is embedded with a heat-conducting plate, and the lower surface of the heat-conducting plate is equipped with a plurality of equidistant arrayed heat dissipation fins.

[0016] By using heat-conducting plates and heat dissipation fins, heat can be conducted and dissipated from the core board on the mounting base plate.

[0017] In a preferred embodiment, a number of fans are embedded on the left side of the chassis, and the fans are equidistantly embedded on the left side of the chassis.

[0018] As can be seen from the above, the inverter core structure provided by this utility model, which is easy to install, has the following technical effects.

[0019] Firstly, when installing the movement board, insert the insert plate on the lower surface of the movement board into the slot of the mounting base plate. Under the action of the spring, push the limiting tooth plate to engage with the slot of the insert plate. Under the restriction of the limiting tooth plate, the movement board can be fixed on the mounting base plate, thus completing the assembly work. When disassembling, push the push rod to drive the limiting tooth plate to retract into the limiting groove, so that the limiting tooth plate separates from the slot. At this time, the movement board can be disassembled and separated from the mounting base plate. There is no need to install the movement by tightening bolts, which provides convenience for its assembly work.

[0020] Secondly, after the connected wires are placed in the wire placement groove, the operating lever is rotated to drive the bidirectional threaded rod to rotate. Under the guidance of the guide slider, the two threaded blocks can drive the first and second moving plates to move closer or in opposite directions through the rotation of the bidirectional threaded rod, until the wire placement grooves of the first and second moving plates intersect, clamping and fixing the wires in the wire placement groove. This can improve the stability of the wires after they are connected to the terminals and prevent the wires from coming off due to external pulling. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of a frequency converter core structure that is easy to install, as proposed in this utility model.

[0022] Figure 2 This is a front cross-sectional view of a frequency converter core structure that is easy to install, as proposed in this utility model.

[0023] Figure 3 This is a top sectional view of a frequency converter core structure that is easy to install, as proposed in this utility model.

[0024] Figure 4 This is a front cross-sectional view of the core plate of a frequency converter core structure that is easy to install, as proposed in this utility model.

[0025] Figure 5 This is a top-section schematic diagram of a frequency converter core structure that is easy to install, as proposed in this utility model.

[0026] Figure 6 This invention presents a three-dimensional structural diagram of the first and second sliding plates of a frequency converter core structure that is easy to install.

[0027] In the attached diagram: 1. Chassis; 2. Core board; 3. Mounting base plate; 4. Component body; 5. Terminal block; 6. Insert plate; 7. Spring; 8. Limiting tooth plate; 9. Push rod; 10. Limiting slider; 11. Operating lever; 12. Bidirectional threaded rod; 13. Threaded block; 14. First moving plate; 15. Second moving plate; 16. Wire placement groove; 17. Guide slider; 18. Heat conduction plate; 19. Heat dissipation fins; 20. Fan. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Reference Figures 1-6 A frequency converter core structure that is easy to install includes a chassis 1 and a core plate 2. A mounting base plate 3 is fixedly installed inside the chassis 1. A mounting mechanism is provided between the core plate 2 and the mounting base plate 3. Core component bodies 4 and wiring terminals 5 are respectively installed on the upper surface of the core plate 2. A wiring fixing mechanism is provided on the upper surface of the core plate 2.

[0030] The mounting mechanism includes two symmetrical insert plates 6 fixedly mounted on the lower surface of the core plate 2. The surface of the mounting base plate 3 has two slots corresponding to the positions of the two insert plates 6. The inner wall of the slot has a limiting groove. A spring 7 is fixedly mounted on the inner wall of the limiting groove. A limiting tooth plate 8 is fixedly mounted on the end of the spring 7 away from the inner wall of the limiting groove. The surface of the insert plate 6 has a slot that matches the limiting tooth plate 8. The front of the mounting base plate 3 has a sliding strip opening that extends into the limiting groove. The inner wall of the sliding strip opening is slidably connected to a push rod 9 that is fixedly connected to the front of the limiting tooth plate 8.

[0031] The back of the limiting tooth plate 8 is provided with a limiting slider 10, and the inner rear wall of the limiting groove is provided with a limiting groove for the limiting slider 10 to slide. Under the guidance of the limiting slider 10, the limiting tooth plate 8 can move smoothly in the limiting groove.

[0032] Reference Figure 4 , Figure 5 and Figure 6In a preferred embodiment, the wiring fixing mechanism includes a mounting groove formed on the upper surface of the core plate 2 and adjacent to the terminal 5. A rotating opening extending through the mounting groove is formed on the right side surface of the core plate 2. An operating rod 11 is rotatably connected to the inner wall of the rotating opening. The left end of the operating rod 11 extends into the mounting groove and is fixedly connected to a bidirectional threaded rod 12. Two symmetrical threaded blocks 13 are threadedly connected to the surface of the bidirectional threaded rod 12. A first moving plate 14 and a second moving plate 15 are fixedly installed on the upper surfaces of the two threaded blocks 13, respectively. A wire placement groove 16 is formed on the surface of both the first moving plate 14 and the second moving plate 15.

[0033] The lower surface of the threaded block 13 is provided with a guide slider 17, and the inner bottom wall of the mounting groove is provided with a guide groove for the guide slider 17 to slide. Under the guidance of the guide slider 17, the two threaded blocks 13 can drive the first moving plate 14 and the second moving plate 15 to move closer or in opposite directions through the rotation of the bidirectional threaded rod 12.

[0034] The number of wire placement grooves 16 is the same as the number of wiring grooves of terminal block 5, and the positions of wire placement grooves 16 and wiring grooves of terminal block 5 correspond to each other.

[0035] Reference Figure 1 and Figure 2 In a preferred embodiment, a heat dissipation opening is provided on the lower surface of the mounting substrate 3, and a heat-conducting plate 18 is embedded in the inner wall of the heat dissipation opening. A plurality of equidistant array heat dissipation fins 19 are mounted on the lower surface of the heat-conducting plate 18.

[0036] The heat-conducting plate 18 and the heat dissipation fins 19 can conduct heat and dissipate heat to the core plate 2 on the mounting base plate 3.

[0037] Fans 20 are embedded on the left side of the chassis 1. There are several fans 20, and the fans 20 are equidistantly embedded on the left side of the chassis 1.

[0038] Working principle: When installing the mechanism board 2, insert the insert plate 6 on the lower surface of the mechanism board 2 into the socket of the mounting base plate 3. Under the action of the spring 7, push the limiting tooth plate 8 to engage with the slot of the insert plate 6. Under the restriction of the limiting tooth plate 8, the mechanism board 2 can be fixed on the mounting base plate 3, thus completing the assembly. When disassembling, push the push rod 9 to drive the limiting tooth plate 8 to retract into the limiting groove, so that the limiting tooth plate 8 separates from the slot. At this time, the mechanism board 2 can be disassembled from the mounting base plate 3. When the external circuit and the wiring terminal 5 are tightened... After fixing, the connected wire is placed in the wire placement groove 16. At this time, rotating the operating lever 11 drives the bidirectional threaded rod 12 to rotate. Under the guidance of the guide slider 17, the two threaded blocks 13 can drive the first moving plate 14 and the second moving plate 15 to move closer or in opposite directions through the rotation of the bidirectional threaded rod 12, until the wire placement groove 16 of the first moving plate 14 and the wire placement groove 16 of the second moving plate 15 intersect, clamping and fixing the wire in the wire placement groove 16, which can improve the stability of the wire after it is connected to the terminal 5.

[0039] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A mechanism structure for a frequency converter that is easy to install, characterized in that, It includes a chassis (1) and a core board (2). The chassis (1) is fixedly installed with a mounting base (3). A mounting mechanism is provided between the core board (2) and the mounting base (3). The upper surface of the core board (2) is respectively equipped with a core component body (4) and a terminal block (5). A circuit fixing mechanism is provided on the upper surface of the core board (2). The mounting mechanism includes two symmetrical insert plates (6) fixedly installed on the lower surface of the core plate (2). The surface of the mounting base plate (3) is provided with two sockets corresponding to the positions of the two insert plates (6). The inner wall of the socket is provided with a limiting groove. A spring (7) is fixedly installed on the inner wall of the limiting groove. A limiting tooth plate (8) is fixedly installed on the end of the spring (7) away from the inner wall of the limiting groove. The surface of the insert plate (6) is provided with a slot that matches the limiting tooth plate (8). The front of the mounting base plate (3) is provided with a sliding strip opening that extends into the limiting groove. The inner wall of the sliding strip opening is slidably connected to a push rod (9) that is fixedly connected to the front of the limiting tooth plate (8).

2. The inverter core structure for easy installation according to claim 1, characterized in that, The back of the limiting tooth plate (8) is provided with a limiting slider (10), and the inner rear wall of the limiting groove is provided with a limiting groove for the limiting slider (10) to slide.

3. The inverter core structure for easy installation according to claim 1, characterized in that, The line fixing mechanism includes a mounting groove on the upper surface of the core plate (2) and adjacent to the terminal (5). A rotating opening is provided on the right side surface of the core plate (2) and extends into the mounting groove. An operating rod (11) is rotatably connected to the inner wall of the rotating opening. The left end of the operating rod (11) extends into the mounting groove and is fixedly connected to a bidirectional threaded rod (12). Two symmetrical threaded blocks (13) are threadedly connected to the surface of the bidirectional threaded rod (12). A first moving plate (14) and a second moving plate (15) are fixedly installed on the upper surface of the two threaded blocks (13). A wire placement groove (16) is provided on the surface of both the first moving plate (14) and the second moving plate (15).

4. The inverter core structure for easy installation according to claim 3, characterized in that, The lower surface of the threaded block (13) is provided with a guide slider (17), and the inner bottom wall of the mounting groove is provided with a guide groove for the guide slider (17) to slide.

5. The inverter core structure for easy installation according to claim 3, characterized in that, The number of the wire placement grooves (16) is the same as the number of the wiring grooves of the terminal block (5), and the positions of the wire placement grooves (16) and the wiring grooves of the terminal block (5) correspond to each other.

6. The inverter core structure for easy installation according to claim 1, characterized in that, The mounting base plate (3) has a heat dissipation opening on its lower surface. A heat-conducting plate (18) is embedded in the inner wall of the heat dissipation opening. A number of heat dissipation fins (19) in an equidistant array are installed on the lower surface of the heat-conducting plate (18).

7. The inverter core structure for easy installation according to claim 1, characterized in that, A fan (20) is embedded on the left side of the chassis (1). There are several fans (20), and several fans (20) are equidistantly embedded on the left side of the chassis (1).

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