CN111384865A

CN111384865A - Inverter

Info

Publication number: CN111384865A
Application number: CN201811611410.4A
Authority: CN
Inventors: 吴良材; 李其凤; 赵盛; 程浩; 叶见领
Original assignee: Growatt New Energy Technology Co ltd
Current assignee: SHENZHEN GROWATT NEW ENERGY Co.,Ltd.
Priority date: 2018-12-27
Filing date: 2018-12-27
Publication date: 2020-07-07

Abstract

The invention relates to the technical field of electrical appliance design, in particular to an inverter which comprises an inductance assembly, a radiator and a main board, wherein the inductance assembly is arranged at the bottom of the radiator, the main board is arranged on the upper end surface of the radiator, and the inductance assembly is electrically connected with the main board. The inductance assembly comprises a mounting shell and an inductance line terminal arranged in the mounting shell; the radiator is provided with a through hole, and the inductance line terminal passes through the through hole to be connected with the mainboard. This application sets up the inductance subassembly in the bottom of radiator, has practiced thrift the space in the inverter casing on the one hand, and on the other hand has reduced the temperature in the inverter casing, walks simultaneously neatly, has practiced thrift inductance line length to through the fixed unit on the mount with inductance line terminal fixed positioning, make inductance line terminal and mainboard wiring also very convenient.

Description

Inverter

Technical Field

The invention relates to the technical field of electrical appliance design, in particular to an inverter.

Background

The inverter is an electronic device for converting low-voltage direct current into 220V alternating current and consists of an inverter bridge, control logic and a filter circuit. People are now in a mobile era, mobile office. In the mobile state, people not only need low-voltage direct current supplied by a battery or a storage battery, but also need indispensable 220V alternating current in daily life, and the inverter can meet the requirements of people.

In the existing inverter, an inductance assembly is designed in the internal space of the inverter, but the ambient temperature in a cavity of the whole inverter is increased firstly, and in addition, the whole volume of the inverter is also increased.

Disclosure of Invention

The application provides an inverter, sets up the inductance components in the outside of inverter complete machine, aims at solving the too high and too big technical problem of occupation space of the casing internal temperature of inverter.

The utility model provides an inverter, includes inductance subassembly, radiator and mainboard, the inductance subassembly sets up the bottom of radiator, the mainboard sets up on the up end of radiator, the inductance subassembly with the mainboard electricity is connected.

The inductance assembly comprises a mounting shell and an inductance line terminal arranged in the mounting shell;

the radiator is provided with a through hole, and the inductance line terminal penetrates through the through hole to be connected with the mainboard.

The radiator is characterized by further comprising a fixing frame, wherein the fixing frame is arranged on the upper end face of the radiator and is positioned between the radiator and the main board; the fixing frame is provided with a plurality of fixing units for fixing the inductance line terminals.

The fixing frame is provided with a through hole in the middle, the through hole in the fixing frame corresponds to the through hole in the radiator, and the inductance wire terminal penetrates through the through hole and is fixed on the fixing unit.

Specifically, the fixing unit is arranged along the periphery of the through hole in the fixing frame.

The fixing frame and the radiator are correspondingly provided with threaded holes, and screws are arranged in the threaded holes and used for fixing the fixing frame on the radiator.

The fixing unit comprises a boss and a limiting groove adjacent to one end of the boss, the limiting groove is close to limiting ribs arranged on the through hole and two side walls of the through hole, a raised surrounding edge is arranged on the other end of the boss along the side wall, clamping hooks are arranged on the side walls of two sides of the middle section of the boss, and the upper end faces of the surrounding edge and the clamping hooks are higher than the upper end face of the boss.

Furthermore, the boss is located the one end of surrounding edge still is equipped with conductive nut, be equipped with on the mainboard with the mounting hole that conductive nut corresponds, the inductance line terminal is through setting up conductive screw fixation in mounting hole and the conductive nut and the mainboard electricity is connected.

Specifically, the number of the fixing units is 8.

The bottom of the radiator is provided with an installation groove, the installation shell is arranged in the installation groove, and the side wall of the installation shell is provided with cooling fins.

According to the inverter of the embodiment, the inductance assembly is arranged at the bottom of the radiator, the inverter is provided with the corresponding through hole and the fixing frame, so that the pole line terminal can penetrate through the through holes formed in the inverter and the fixing frame and is arranged on the fixing unit of the fixing frame, and the inductance line terminal is fixed with the conductive screw arranged on the main board through the conductive nut arranged on the fixing frame and is electrically connected with the main board. This application sets up the inductance subassembly in the bottom of radiator, has practiced thrift the space in the inverter casing on the one hand, and on the other hand has reduced the temperature in the inverter casing, walks simultaneously neatly, has practiced thrift inductance line length to through the fixed unit on the mount with inductance line terminal fixed positioning, make inductance line terminal and mainboard wiring also very convenient.

Drawings

Fig. 1 is an exploded view of an inverter according to an embodiment of the present application;

FIG. 2 is a schematic view of a fixing frame according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a fixing unit according to an embodiment of the present application;

fig. 4 is a schematic view illustrating an installation of an inductor assembly, a heat sink and a fixing frame in a view angle according to an embodiment of the present disclosure;

fig. 5 is a schematic view illustrating an installation of an inductor assembly, a heat sink and a fixing frame according to another view angle of the present application;

FIG. 6 is a schematic structural diagram of an inductor according to an embodiment of the present application;

FIG. 7 is a schematic diagram of a fixing unit and an inductor terminal according to an embodiment of the present disclosure;

fig. 8 is a plan view of the fixing unit and the inductor terminal according to the present invention in a fitted state.

Detailed Description

The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.

Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.

The design of current inverter is almost all with inductance assembly design in the casing of inverter, but inductance assembly can produce a large amount of heats at work, makes inverter casing internal temperature rise like this, is unfavorable for the heat dissipation of inverter, can occupy the inside space of inverter with inductance assembly design in the casing of inverter simultaneously, leads to the whole volume of inverter too big, carries inconveniently.

If the inverter is placed outside the whole machine, how to design the inductance line to be connected with the main board so as to lead the wiring to be simple, insulated and safe and the outside to be beautiful is a technical problem which can not be solved by people all the time, and just so, the inductance components of the existing inverter are all designed in the shell of the inverter.

The utility model provides a with inductance assembly design in the outside scheme of dc-to-ac converter casing, concrete setting is equipped with a mounting groove in the bottom of radiator, with inductance assembly mounting in the mounting groove, is equipped with a through-hole simultaneously on the radiator and supplies the inductance line to pass and be connected with the mainboard electricity for walk the line distance short and clean and tidy, avoided practicing thrift the inside wire rod in disorder phenomenon. Further, for the convenient wiring of pole line and fixed stable, this application has still designed the mount, and the mount is installed between radiator and mainboard for fix the inductance line terminal and be connected inductance line and mainboard electricity through conductive nut and conductive screw. Therefore, the inductance wire and the main board are convenient to wire and accurate in alignment. After the cover of the inverter cover is covered, the electric wire cannot be seen, and the whole inverter is tidy.

Example 1

The present embodiment provides an inverter, as shown in fig. 1 to 6, the inverter includes an inductance component 1, a heat sink 2 and a main board 3, wherein the inductance component 1 of the present embodiment is disposed outside a housing of the inverter, specifically, the inductance component 1 is disposed at a bottom of the heat sink 2, the main board 4 is disposed on an upper end surface of the heat sink 2, and the inductance component 1 is electrically connected to the main board 4. The inductance assembly is arranged at the bottom of the radiator, so that the space in the inverter shell is saved on one hand, and the temperature in the inverter shell is reduced on the other hand.

Specifically, in the present embodiment, a mounting groove 21 is provided at the bottom of the heat sink 2, the inductance assembly 1 is disposed in the mounting groove 21, and a plurality of heat dissipation fins are provided on the side wall of the mounting housing 11 of the inductance assembly 1 for dissipating heat.

The inductance assembly 1 comprises a mounting shell 11 and an inductance line terminal 12 arranged in the mounting shell; a through hole 22 is provided in the heat sink 2, and the inductance line terminal 12 is electrically connected to the main board 4 through the through hole 22.

Further, as shown in fig. 2, the inverter further includes a fixing frame 3, the fixing frame 3 is installed on the upper end surface of the heat sink 2 and located between the heat sink 2 and the main board 4, the fixing frame 3 is provided with a plurality of fixing units 31, the fixing units 31 are used for fixing the inductance line terminals 12, and one of the fixing units 31 fixes one of the inductance line terminals 12.

Specifically, a through hole 32 is also formed in the middle of the fixing frame 3, the through hole 32 in the fixing frame 3 corresponds to the through hole 22 in the heat sink 2, and a threaded hole 23 is formed in the heat sink 2 to fix the fixing frame 3 to the heat sink 2 by a screw, so that the inductance wire terminal 12 passes through the through hole and is fixed to the fixing unit 31. Through the wiring mode of this embodiment for the distance between inductance line terminal 12 and mainboard 4 shortens, can save a lot of wires, and the inductance line terminal that passes the through-hole simultaneously makes the wiring whole succinctly, not in disorder through fixed unit 21 location and fixed.

Further, as shown in fig. 3, fig. 7 and fig. 8, the fixing unit 31 of this embodiment includes a boss 311 and a limiting groove 316 adjacent to one end of the boss 311, the limiting groove 316 is close to the through hole 32 and has a limiting rib 312 on a sidewall thereof, the limiting rib 312 is used for limiting the backward movement of the inductance line terminal 12 along the axial direction of the boss 311, that is, the movement is toward the direction of the through hole 32; the other end of the boss 311 is provided with a raised surrounding edge 314 along the side wall, and the surrounding edge 314 can limit the forward movement of the inductance terminal 12 along the axial direction of the boss 311 and limit the transverse movement of the inductance terminal 12; furthermore, the side walls at the two sides of the middle section of the boss 311 are further provided with hooks 313, and the hooks 313 at the two sides are used for pressing the inductance line terminal 12 to prevent the inductance line terminal from tilting. The upper end surfaces of the limiting ribs 312, the surrounding edge 314 and the clamping hooks 313 are higher than the upper end surface of the boss 311. The fixing unit 31 on the fixing frame 3 of the present embodiment can accurately position and fix the inductor terminal 12, so as to prevent the inductor terminal 12 from moving, which results in messy routing.

Furthermore, a conductive nut 315 is further disposed at one end of the boss 311 located at the surrounding edge 314, a mounting hole 41 corresponding to the conductive nut 315 is disposed on the main board 4, a corresponding through hole 121 is also disposed on the inductance line terminal 12, after the inductance line terminal 12 is mounted on the fixing unit 31, the conductive nut 315 is screwed by passing a conductive screw 42 through the mounting hole 41 and the through hole 121, and the inductance line terminal 12 is pressed on the conductive nut 315, so as to be electrically connected to the inductance line terminal 12. Specifically, in this embodiment, the conductive nut 315 and the conductive screw 42 are made of copper materials, so that the conductive effect is improved.

Specifically, the fixing frame 3 in this embodiment is provided with 8 fixing units 31, and the 8 fixing units 31 are disposed around the through hole 32 on the fixing frame, and are used for positioning and fixing the inductance terminal 12.

The fixing frame 3 and the fixing unit 31 thereon of the present embodiment are made of plastic insulating material, so that the inductance line terminal 12 and the heat sink 2 are insulated from each other, and leakage current is prevented.

After the cover is covered on the inverter, wires cannot be seen, the appearance is neat, meanwhile, internal wiring is neat, and wires are saved; the inverter is small in overall size and good in heat dissipation effect.

The present invention has been described in terms of specific examples, which are provided to aid understanding of the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.

Claims

1. The utility model provides an inverter, includes inductance subassembly, radiator and mainboard, its characterized in that, the inductance subassembly sets up the bottom of radiator, the mainboard sets up on the up end of radiator, the inductance subassembly with the mainboard electricity is connected.

2. The inverter of claim 1, wherein the inductance assembly includes a mounting housing and an inductance line terminal disposed within the mounting housing;

3. The inverter of claim 2, further comprising a mount mounted on an upper end surface of the heat sink between the heat sink and a motherboard; the fixing frame is provided with a plurality of fixing units for fixing the inductance line terminals.

4. The inverter according to claim 3, wherein a through hole is formed in a middle portion of the fixing frame, the through hole of the fixing frame corresponds to the through hole of the heat sink, and the inductance line terminal is fixed to the fixing unit through the through hole.

5. The inverter of claim 4, wherein the fixing unit is disposed along a circumference of the through hole of the fixing frame.

6. The inverter according to claim 4, wherein the fixing frame and the heat sink are correspondingly provided with threaded holes, and screws are arranged in the threaded holes for fixing the fixing frame on the heat sink.

7. The inverter of claim 3, wherein the fixing unit comprises a boss and a limiting groove adjacent to one end of the boss, the limiting groove is close to the through hole and has limiting ribs on two side walls, the other end of the boss has a raised surrounding edge along the side wall, the side walls on two sides of the middle section of the boss have hooks, and the upper end surfaces of the surrounding edge and the hooks are higher than the upper end surface of the boss.

8. The inverter of claim 7, wherein a conductive nut is further disposed at one end of the boss located at the surrounding edge, a mounting hole corresponding to the conductive nut is disposed on the main board, and the inductance line terminal is fixed by a conductive screw disposed in the mounting hole and the conductive nut and electrically connected to the main board.

9. The inverter of claim 3, wherein the fixed unit comprises 8.

10. The inverter of claim 2, wherein the heat sink has a mounting groove formed in a bottom thereof, the mounting housing is disposed in the mounting groove, and the side wall of the mounting housing has a heat sink.