Direct-mounted non-standard frequency converter

Abstract

The utility model discloses a direct installation type non-standard frequency converter, which comprises an installation bottom plate, a cast aluminum shell and a plastic shell cover, the bottom of the installation bottom plate is provided with an installation column used for fixing, the installation bottom plate is formed by bending a metal plate, and the installation bottom plate and the cast aluminum shell are installed in a multi-direction threaded locking mode through bolts. The plastic shell cover is fixedly installed on the cast aluminum shell in a threaded mode, a heat dissipation cavity and an installation cavity are further formed among the installation bottom plate, the cast aluminum shell and the plastic shell cover, a control panel fixed to the cast aluminum shell is arranged in the installation cavity, and an external wiring assembly and a direct installation wiring assembly are arranged on the cast aluminum shell and used for electric connection wiring of the motor. The frequency conversion controller is provided with two installation structures, can adapt to installation of non-standard-type motor shells, and the installation of the non-standard-type motor shells not only meets stronger protection and stability through fitting of the shells, but also can adapt to a common motor shell to be fixed and used through replacement of the installation bottom plate, and is convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to frequency converter technical field, concretely relates to a direct mounting type non-standard frequency converter. BACKGROUND

[0002] Frequency converter is application frequency conversion and microelectronic technology, through the way of changing motor working power frequency to control the electric power control equipment of AC motor, has good speed regulation performance, energy saving high efficiency, in recent years in fan, water pump, compressor and fluid machinery equipment, textile, chemical fiber, plastic, chemical industry equipment field application widely. And motor is a kind of equipment that converts electric energy into mechanical energy. It is that the electric coil generates rotating magnetic field and acts on the rotor to form magnetic electric power rotation torque. Motor is divided into DC motor and AC motor according to the different power supply, and the motor in power system is mostly AC motor, which can be synchronous motor or asynchronous motor. Motor is mainly composed of stator and rotor, and the direction of force movement of energized wire in magnetic field is related to current direction and magnetic induction line direction. In the process of motor use, often need to adjust motor speed according to actual needs, which requires the use of frequency converter. SUMMARY

[0003] In view of the prior art, the utility model aims at providing a direct mounting type non-standard frequency converter, which meets the requirements of model-specific installation, reduces the assembly volume and difficulty, and can be used for the installation of ordinary motors.

[0004] In order to achieve the above purpose, the utility model adopts the technical scheme that a direct mounting type non-standard frequency converter, including installation bottom plate, cast aluminum shell and plastic shell cover, the installation bottom plate bottom is equipped with the installation column for fixed, the installation bottom plate is bent by metal plate, and the installation bottom plate is installed by bolt and cast aluminum shell multidirectional thread locking, the plastic shell cover is fixedly installed on the cast aluminum shell, the installation bottom plate, cast aluminum shell and plastic shell cover are also equipped with heat dissipation cavity and installation cavity, the installation cavity is equipped with control panel fixed on the cast aluminum shell, and the cast aluminum shell is equipped with external connection line assembly and direct mounting connection line assembly for motor electric connection wiring.

[0005] As a further setting of the above scheme, the cast aluminum shell is also provided with a capacitor groove and a communication port, the communication port is used for communication between the installation cavity and the heat dissipation cavity, the control panel abuts against the heat dissipation block through the communication port, the cast aluminum shell is also provided with a heat dissipation fan in the heat dissipation cavity, the heat dissipation fan is attached to one side of the gap of the heat dissipation block fin, and the cast aluminum shell is provided with a heat dissipation port for the heat dissipation fan.

[0006] As a further setting of the above scheme, the plastic shell cover is provided with a wiring groove, a wiring cover and a key groove, the wiring cover is installed relative to the plastic shell cover by screws, for opening or closing the wiring groove, and the key groove is also provided with a gap for closing the key groove by the front film.

[0007] As a further arrangement of the above scheme, the external wiring assembly is provided with a waterproof wire lock head, the direct wiring assembly is provided with a mounting seat for docking with the motor shell, the mounting seat is fixed on the mounting bottom plate by screws, and a sealing ring pad is arranged between the cast aluminum shell and the mounting seat.

[0008] Beneficial effects: the frequency converter of the utility model, setting two kinds of installation structure, can adapt to the installation of non-standard motor shell, the installation of standard type is through the adhesion of the shell, not only meet stronger protection and stability, but also can be through the replacement of the mounting bottom plate to adapt to the fixed use of ordinary motor shell, convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is a schematic diagram of the frequency converter structure of the utility model.

[0010] Figure 2 It is a schematic diagram of the frequency converter assembly structure of the embodiment.

[0011] Figure 3 It is a schematic diagram of the frequency converter installation cavity structure of the embodiment.

[0012] Figure 4 It is a schematic diagram of the frequency converter heat dissipation cavity structure of the embodiment.

[0013] Figure 5 It is a schematic diagram of the cast aluminum shell structure of the embodiment.

[0014] Figure 6 It is a schematic diagram of the wiring groove structure of the embodiment.

[0015] Reference signs: 1, mounting bottom plate; 13, mounting column; 14, mounting seat; 15, bolt; 16, sealing ring pad; 2, cast aluminum shell; 20, heat dissipation cavity; 21, installation cavity; 22, external wiring assembly; 23, direct wiring assembly; 24, capacitor groove; 28, waterproof wire lock head; 3, plastic shell cover; 32, wiring groove; 38, wiring cover; 37, button groove; 39, front film; 4, control panel; 5, heat dissipation port; 6, heat dissipation block; 7, heat dissipation fan. DETAILED DESCRIPTION

[0016] In order to enable the above-mentioned purpose, features and advantages of the utility model to be more clearly understood, the utility model will be further described in detail below in combination with the drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0017] For example, Figures 1-6As shown in one kind directly mounted non-standard frequency converter, including installation base plate 1, cast aluminum shell 2 and plastic shell cover 3, the installation base plate 1 bottom is equipped with the fixed mounting column 13, the installation base plate 1 is made by bending the metal plate, installation base plate 1 is locked and installed in multiple directions by bolt 15 and cast aluminum shell 2, as Figure 2 And Figure 4 As shown, the installation base plate 1 has a ninety-degree angle plate, and the fixing bolt 15 is not only locked with the cast aluminum shell on the main surface of the installation base plate 1, but also locked on the side wing, thereby achieving connection with the cast aluminum shell 2 from multiple angles, ensuring the installation strength, and further improving the connection strength when the installation base plate 1 is connected and fixed with the motor, the plastic shell cover 3 is threadedly fixed on the cast aluminum shell 2, and the installation base plate 1, the cast aluminum shell 2 and the plastic shell cover 3 are also provided with a heat dissipation cavity 20 and an installation cavity 21, as shown, the heat dissipation cavity 20 and the installation cavity 21 are relatively sealed and isolated in the installation state, avoiding the entry of water vapor from the heat dissipation cavity 20 into the installation cavity 21 where the control panel 4 is installed, and the heat generating components on the control panel 4 are attached to the heat dissipation block 6 through the communication port, which can quickly transfer heat to the heat dissipation cavity 20 for heat dissipation and cooling, the installation cavity 21 is provided with a control panel 4 fixed on the cast aluminum shell 2, and the cast aluminum shell 2 is provided with an external wiring assembly 22 and a directly mounted wiring assembly 23 for motor electrical connection.

[0018] As a further arrangement of the above scheme, the cast aluminum shell 2 is also provided with a capacitor slot 24 and a communication port, the communication port is used to communicate the installation cavity 21 and the heat dissipation cavity 20, the control panel 4 abuts against the heat dissipation block 6 through the communication port, the cast aluminum shell 2 is also provided with a heat dissipation fan 7 in the heat dissipation cavity 20, the heat dissipation fan 7 is attached to the gap side of the fin of the heat dissipation block 6, and the cast aluminum shell 2 is provided with a heat dissipation port 5 for the heat dissipation fan 7.

[0019] As a further arrangement of the above scheme, the plastic shell cover 3 is provided with a wiring slot 32, a wiring cover 38 and a key slot 37, the wiring cover 38 is installed relative to the plastic shell cover 3 by screw, for opening or closing the wiring slot 32, the key slot 37 is also provided with a front film 39 to close the gap of the key slot 37.

[0020] As a further arrangement of the above scheme, the external wiring assembly 22 is provided with a waterproof wire lock head 28, the directly mounted wiring assembly 23 is provided with a mounting seat 14 for butt joint with the motor shell, the mounting seat 14 is screw-fixed on the installation base plate 1, and the cast aluminum shell 2 and the mounting seat 14 are provided with a sealing ring pad 16, as Figure 2As shown, the sealing ring pad 16 is used to seal the gap between the cast aluminum shell 2 and the mounting seat 14 after the deformation and butt joint of the two, and the mounting seat 14 is also provided with a sealing ring at the joint with the motor (no motor in the figure, so it is not shown), which is used to ensure the protective sealing of the cable extending from the mounting seat 14 into the mounting cavity 21 of the direct-wired assembly 23.

[0021] The direct-wired non-standard frequency converter of the utility model, the installation shell main body is composed of three parts, including installation bottom plate 1, cast aluminum shell 2 and plastic shell cover 3, three constitute installation cavity 21 and heat dissipation cavity 20, and the cast aluminum shell 2 is left with a communication port, and the heat dissipation assembly and the control assembly are arranged in the heat dissipation cavity 20 and the installation cavity 21 respectively, and the heat dissipation block 6 is attached to the control panel 4 through the communication port, and the heat of the control panel 4 is discharged outward through the heat dissipation block 6 and the heat dissipation fan 7 in the heat dissipation cavity 20, further, the cast aluminum shell 2 and the installation bottom plate 1 of the embodiment are provided with external wiring assembly 22 and direct-wired assembly 23, as shown in Figure 2 and Figure 5 As shown, the frequency converter of the embodiment is provided with two sets of connection wiring schemes, which can be connected with the motor through the direct-wired assembly 23 when used for the motor of a certain type, as shown in Figure 4 The direct-wired assembly 23 is directly connected from the motor shell, and the wire is connected into the installation cavity 21 through the heat dissipation cavity 20, which can be directly connected and assembled with the control panel 4, which not only avoids the exposure of the cable, but also reduces the size of the wire and protects the cable, and the external wiring assembly 22 is connected and assembled by using the waterproof connector, and after the cable is connected into the wiring groove 32 through the external wiring assembly 22, the cable can be connected and installed by opening the wiring cover 38 on the plastic shell cover 3.

[0022] Obviously, those skilled in the art can make various modifications and variations to the utility model without departing from the spirit and scope of the utility model. Thus, if these modifications and variations of the utility model belong to the scope of the utility model scheme and its equivalent technology, the utility model also intends to include these modifications and variations.

Claims

1. A direct-mounted non-standard frequency converter, characterized in that: The device includes a mounting base plate (1), a cast aluminum housing (2), and a plastic cover (3). The mounting base plate (1) has a mounting post (13) for fixing at the bottom. The mounting base plate (1) is made by bending a metal plate. The mounting base plate (1) is installed on the cast aluminum housing (2) by bolts (15) with multi-directional thread locking. The plastic cover (3) is threadedly fixed on the cast aluminum housing (2). A heat dissipation cavity (20) and a mounting cavity (21) are also provided between the mounting base plate (1), the cast aluminum housing (2), and the plastic cover (3). A control plate (4) fixed on the cast aluminum housing (2) is provided in the mounting cavity (21). An external wiring assembly (22) and a direct wiring assembly (23) are provided on the cast aluminum housing (2) for motor electrical connection wiring.

2. The direct-mount non-standard frequency converter according to claim 1, characterized in that: The cast aluminum housing (2) is also provided with a capacitor slot (24) and a connection port. The connection port is used to connect the mounting cavity (21) and the heat dissipation cavity (20). The control board (4) abuts against the heat dissipation block (6) through the connection port.

3. A direct-mounted non-standard frequency converter according to claim 2, characterized in that: The cast aluminum housing (2) is also provided with a heat dissipation fan (7) in the heat dissipation cavity (20). The heat dissipation fan (7) is attached to one side of the gap between the fins of the heat dissipation block (6), and the cast aluminum housing (2) is provided with a heat dissipation port (5) for the heat dissipation fan (7).

4. A direct-mounted non-standard frequency converter according to claim 1, characterized in that: The plastic shell cover (3) is provided with a wiring groove (32), a wiring cover (38) and a button groove (37). The wiring cover (38) is installed relative to the plastic shell cover (3) by screws and is used to open or close the wiring groove (32). The button groove (37) is also provided with a front film (39) to close the gap of the button groove (37).

5. A direct-mounted non-standard frequency converter according to claim 1, characterized in that: The external wiring assembly (22) is provided with a waterproof wire lock head (28), and the direct-mount wiring assembly (23) is provided with a mounting base (14) that connects to the motor housing. The mounting base (14) is screwed onto the mounting base plate (1), and a sealing ring gasket (16) is provided between the cast aluminum housing (2) and the mounting base (14).

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