Generator frequency converter module

Abstract

The utility model discloses a generator frequency converter module, and relates to the technical field of motor frequency converters. The frequency converter comprises a frequency converter body and a shell installed outside the frequency converter body. The bottom of the housing is provided with supporting legs which are in spacing plugging cooperation with four corners of a terminal box at the top of the permanent magnet synchronous generator, and the upper part of the support is provided with a baffle plate which is used for abutting against a top cover of the terminal box after the support is plugged so as to realize spacing. According to the utility model, the generator frequency converter module and the permanent magnet synchronous generator which are originally arranged at intervals in a scattered manner are combined to form a detachable whole, thereby greatly shortening the wiring distance, facilitating the installation and disassembly, and reducing the occupied space; due to the design of the heat dissipation air outlet groove with the downward groove opening, dust adhesion is reduced, and the dustproof effect is greatly improved; and adaptability is good, practicability is excellent, and market application and popularization are facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor frequency converters, in particular to a generator frequency converter module. Background Art

[0002] A generator is a mechanical device that converts mechanical energy into electrical energy. Among them, a permanent magnet synchronous generator is also called a brushless synchronous generator, which is a synchronous generator whose rotor is excited by permanent magnet poles. Since the rotor has no electric excitation winding, it does not require a DC excitation power supply, a collector ring, and a brush device. It has a simple structure and reliable operation. It is widely used in aerospace high-speed generators, auxiliary exciters of large steam turbine generators, and wind turbines for renewable energy. The generator inverter can stabilize the voltage frequency output by the generator within a specified value and can dynamically adjust the voltage frequency. Under different working conditions, the generator inverter can adjust the voltage frequency output by the generator as needed, thereby improving the power generation efficiency.

[0003] like Fig. 9 As shown, the inverter module of the existing permanent magnet synchronous generator is independently placed or installed on a bracket, and there is a gap between it and the permanent magnet synchronous generator; and the inverter module adopts a standardized structure, including a shell with heat dissipation holes and a display on the outer peripheral side, a built-in control device, a fixed installation hole on the back, and a terminal connected to the generator terminal at the bottom. The existing technology of the above-mentioned inverter module has the following disadvantages: (1) The inverter is independently placed and installed, connected by wire routing, the wiring distance is long, the installation and disassembly convenience is poor, and it occupies a large space; (2) The heat dissipation holes on the surface are arranged on the outer peripheral side, and dust is easily adhered to the inside, and the dustproof effect is poor; Therefore, in view of the above problems, a generator inverter module is proposed. Utility Model Content

[0004] The utility model provides a generator inverter module, which includes a shell and four brackets at the bottom that are plugged into the upper part of the terminal box, and combines the generator inverter module that was originally arranged at intervals and dispersedly with the permanent magnet synchronous generator to form a detachable whole, which greatly shortens the wiring distance, is convenient for installation and disassembly, and reduces the occupied space; through the springs connected to the two adjacent brackets, the generator inverter module can be well clamped on the permanent magnet synchronous generator, and the stability is good; the generator inverter module includes a built-in inverter body and an external shell with a heat dissipation air outlet slot, and a heat dissipation fan is provided at the bottom, and the heat dissipation fan blows wind into the shell, and takes away the heat from the heat dissipation holes and heat dissipation fins on the inverter body through the heat dissipation channel, thereby realizing efficient cooling, and the heat dissipation air outlet slot design downward from the notch reduces the adhesion of dust, and the dustproof effect is greatly improved; the generator inverter module is installed on the permanent magnet synchronous generator and combined with it, does not destroy the original structure and does not affect the normal operation of the permanent magnet synchronous generator, has good adaptability, excellent practicality, and is convenient for market promotion and application; in summary, the problems in the background technology are solved.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses a generator inverter module, comprising an inverter body and a shell installed outside the inverter body;

[0007] The bottom of the housing is provided with a bracket that is plugged and matched with the four corners of the terminal box on the top of the permanent magnet synchronous generator, and a baffle is provided on the upper part of the bracket, which is used to contact with the top cover of the terminal box after the bracket is plugged in to limit the position;

[0008] The side of the shell is provided with a heat dissipation outlet slot with a notch facing downward, and a heat dissipation fan is installed at the bottom of the shell; the outer wall of the inverter body and the inner wall of the shell, as well as the upper part of the heat dissipation fan and the bottom of the inverter body are all arranged with a spacing, and the formed cavity constitutes a heat dissipation channel;

[0009] The front of the inverter body and the front of the shell are arranged in the same plane, and the wiring port at the lower part of the front of the inverter body is connected to the wiring terminal at the side of the terminal box through a wire.

[0010] Furthermore, the bracket adopts a support foot with an L-shaped cross-section, and a spring for tensioning is connected between two adjacent brackets.

[0011] Furthermore, heat dissipation holes are opened on the outer peripheral side of the inverter body and heat dissipation fins are evenly installed.

[0012] Furthermore, a handle is installed on the top of the shell.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] (1) The generator inverter module includes a housing and four brackets at the bottom that are plugged into the upper part of the terminal box. The generator inverter module that was originally arranged in a dispersed manner is combined with the permanent magnet synchronous generator to form a detachable whole, which greatly shortens the wiring distance, facilitates installation and disassembly, and reduces the occupied space;

[0015] (2) The generator inverter module can be well clamped on the permanent magnet synchronous generator through the springs connected to the two adjacent brackets, and the stability is good;

[0016] (3) The generator inverter module includes a built-in inverter body and an external shell with a heat dissipation air outlet slot. A heat dissipation fan is provided at the bottom. The heat dissipation fan blows air into the shell and takes away the heat from the heat dissipation holes and heat dissipation fins on the inverter body through the heat dissipation channel, thereby achieving efficient cooling. The heat dissipation air outlet slot design from the notch downward reduces dust adhesion and greatly improves the dust prevention effect.

[0017] (4) The generator inverter module is installed on the permanent magnet synchronous generator and combined with it, without destroying the original structure and without affecting the normal operation of the permanent magnet synchronous generator. It has good adaptability and practicality, and is easy to market and apply.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a structural schematic diagram of a combination of a generator inverter module and a permanent magnet synchronous generator of the utility model;

[0021] Figure 2 for Figure 1 Structural diagram from perspective A;

[0022] Figure 3 for Figure 1 The right side view of the structure;

[0023] Figure 4 This is a structural schematic diagram of a generator inverter module of the utility model;

[0024] Figure 5 for Figure 4 Schematic diagram of the structure from the perspective of middle B;

[0025] Figure 6 for Figure 4 The main view of the structure;

[0026] Figure 7 This is a schematic diagram of the structure after removing the bottom plate and cooling fan from the housing;

[0027] Figure 8 for Figure 6 Middle CC section;

[0028] Fig. 9 The figure is a layout relationship diagram of an existing permanent magnet synchronous generator and a frequency converter module;

[0029] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0030] 1-housing, 101-heat dissipation slot, 102-bracket, 103-baffle, 104-spring, 105-handle, 106-heat dissipation fin, 107-inverter body, 108-cooling fan, 2-permanent magnet synchronous generator, 201-terminal box. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] In the description of the present invention, it should be understood that terms such as "outside", "bottom", "top", "upper", "side", and "front" indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limitations on the present invention.

[0033] See also Figure 1-8 As shown, a generator inverter module of the utility model includes an inverter body 107 and a housing 1 installed outside the inverter body 107; the inverter body 107 adopts the existing inverter body structure for controlling the permanent magnet synchronous generator 2, and the internal components are consistent and can be purchased directly. The specific principles and contents are not within the protection scope of this technical solution, and will not be described in detail in this specification;

[0034] The bottom of the housing 1 is provided with a bracket 102 that is plugged and matched with the four corners of the terminal box 201 on the top of the permanent magnet synchronous generator 2. A baffle 103 is provided on the upper part of the bracket 102. The baffle 103 is used to contact with the top cover of the terminal box 201 after the bracket 102 is plugged in to limit the position; the bracket 102 is specifically four groups, which are relatively arranged. The bracket 102 adopts a support foot with an L-shaped cross-section, and a spring 104 for tightening is connected between two adjacent brackets 102; when plugged into the terminal box 201, it can be tightened by the spring 104, reducing the vibration of the generator and thus loosening the internal structure, avoiding the risk of loosening and falling;

[0035] The side of the housing 1 is provided with a heat dissipation outlet slot 101 with a notch downward, and a heat dissipation fan 108 is installed at the bottom of the housing 1; the outer wall of the inverter body 107 and the inner wall of the housing 1 and the upper part of the heat dissipation fan 108 and the bottom of the inverter body 107 are all arranged at a distance, and the formed cavity constitutes a heat dissipation channel; the outer peripheral side of the inverter body 107 is provided with heat dissipation holes and evenly installed with heat dissipation fins 106; the heat dissipation fan 108 rotates at the bottom, sucks the bottom air in and passes through the heat dissipation channel, takes away the heat of the heat dissipation fins 106 and the heat dissipation holes, and emits from the heat dissipation outlet slot 101;

[0036] The front of the inverter body 107 is coplanar with the front of the housing 1 , and the wiring port at the lower part of the front of the inverter body 107 is connected to the wiring terminal at the side of the terminal box 201 through a wire.

[0037] A handle 105 is installed on the top of the housing 1 to facilitate the insertion and removal of the generator inverter module.

[0038] The generator inverter module of the technical solution includes a shell and four brackets at the bottom that are plugged into the upper part of the terminal box. The generator inverter module that was originally arranged at intervals and dispersedly is combined with the permanent magnet synchronous generator to form a detachable whole, which greatly shortens the wiring distance, facilitates installation and disassembly, and reduces the occupied space; through the springs connected to the two adjacent brackets, the generator inverter module can be well clamped on the permanent magnet synchronous generator, and the stability is good; the generator inverter module includes a built-in inverter body and an external shell with a heat dissipation air outlet slot, and a cooling fan is provided at the bottom. The cooling fan blows air into the shell, and takes away the heat from the heat dissipation holes and heat dissipation fins on the inverter body through the heat dissipation channel, thereby achieving efficient cooling, and the heat dissipation air outlet slot design from the notch downward reduces the adhesion of dust, and the dustproof effect is greatly improved; the generator inverter module is installed on the permanent magnet synchronous generator and combined with it, without destroying the original structure and does not affect the normal operation of the permanent magnet synchronous generator, has good adaptability, excellent practicality, and is convenient for market promotion and application.

[0039] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A generator inverter module, comprising an inverter body (107) and a housing (1) mounted outside the inverter body (107), characterized in that: The bottom of the housing (1) is provided with a bracket (102) which is plugged and matched with the four corners of the terminal box (201) at the top of the permanent magnet synchronous generator (2), and a baffle (103) is provided on the upper part of the bracket (102). The baffle (103) is used to contact with the top cover of the terminal box (201) after the bracket (102) is plugged, thereby limiting the position; The side of the housing (1) is provided with a heat dissipation outlet slot (101) with a notch facing downward, and a heat dissipation fan (108) is installed at the bottom of the housing (1); a spacing is arranged between the outer wall of the inverter body (107) and the inner wall of the housing (1), and between the upper part of the heat dissipation fan (108) and the bottom of the inverter body (107), and the formed cavity constitutes a heat dissipation channel; The front of the inverter body (107) and the front of the housing (1) are arranged coplanarly, and the wiring port at the lower part of the front of the inverter body (107) is connected to the wiring terminal at the side of the terminal box (201) through a wire.

2. A generator inverter module according to claim 1, characterized in that: The bracket (102) adopts a support foot with an L-shaped cross section, and a spring (104) for tensioning is connected between two adjacent brackets (102).

3. A generator inverter module according to claim 1, characterized in that: The outer peripheral side of the inverter body (107) is provided with heat dissipation holes and heat dissipation fins (106) are evenly installed.

4. A generator inverter module according to claim 1, characterized in that: A handle (105) is installed on the top of the housing (1).

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