CN208924125U - A kind of electronic equipment and its photovoltaic DC-to-AC converter - Google Patents
A kind of electronic equipment and its photovoltaic DC-to-AC converter Download PDFInfo
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- CN208924125U CN208924125U CN201821493661.2U CN201821493661U CN208924125U CN 208924125 U CN208924125 U CN 208924125U CN 201821493661 U CN201821493661 U CN 201821493661U CN 208924125 U CN208924125 U CN 208924125U
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- power device
- circuit substrate
- photovoltaic
- shell radiator
- container
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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Abstract
The utility model relates to photovoltaic DC-to-AC converter technical fields, disclose a kind of electronic equipment and its photovoltaic DC-to-AC converter, wherein photovoltaic DC-to-AC converter includes: circuit substrate；Power device is welded in circuit substrate；Non-power device is welded in circuit substrate, and is located at the same side of circuit substrate with power device；Shell radiator, circuit substrate are installed on shell radiator, and shell radiator includes fitting surface, and fitting surface offers the non-power container for accommodating non-power device, and power device is installed on fitting surface, so that power device can transmit heat to shell radiator.By the above-mentioned means, can realize that power device and non-power device are located at the same side of circuit substrate, power device and non-power device can cross wave soldering together, avoid power device and need independent repair welding, lead to the problem that production efficiency is lower.
Description
[technical field]
The utility model relates to photovoltaic DC-to-AC converter technical field more particularly to a kind of electronic equipment and its photovoltaic DC-to-AC converters.
[background technique]
Small-power inverter is mainly used in the photovoltaic DC-to-AC converter of solar energy power generating.Self cooling or air-cooled inverse
Become in device product, configured with for boost and the components such as the power device of Converting Unit, IGBT device and magnetic device, these portions
The heat that part is distributed enables product to work normally by conducting to shell radiator.
In traditional self cooling or air-cooled inverter, power device reverse molding is generally first preloaded onto the back side of PCB, so
It is installed on shell radiator together with PCB afterwards, then passes through the hole held successfully in advance on PCB, function is fixed by press strip with screw
Rate device so that power device radiating surface by insulating trip or ceramic substrate close on shell radiator, finally by craft
By the pin repair welding of power device on PCB, by insulating trip or ceramic substrate by the heat transfer of power device radiating surface
To shell radiator, the heat conducting and radiating of power device is realized.
But inventor is in the process of implementing the utility model, discovery: since shell radiator is for being bonded insulating trip
Or the surface of ceramic substrate is generally planar, and the height of power device is generally below the height of the non-power device on PCB
Degree causes power device and non-power device that cannot be laid out the same face in PCB, and wave-soldering can not be crossed together with non-power device
It connects, and needs independent repair welding, production efficiency is lower.Therefore, the prior art needs to improve.
[summary of the invention]
In order to solve the above-mentioned technical problem, the utility model embodiment provides a kind of electronic equipment and its photovoltaic DC-to-AC converter,
Wherein, the power device of photovoltaic DC-to-AC converter and non-power device are located at the same surface of circuit substrate, and power device can be with
Heat is transmitted to shell radiator, it can be achieved that power device mistake wave soldering together with non-power device, avoids power device
Independent repair welding is needed, the problem that production efficiency is lower is caused.
In order to solve the above-mentioned technical problem, the embodiment of the present invention the following technical schemes are provided:
On the one hand, a kind of photovoltaic DC-to-AC converter is provided, comprising: circuit substrate；Power device is welded in the circuit substrate；
Non-power device is welded in the circuit substrate, and is located at the same side of the circuit substrate with the power device；Shell
Radiator, the circuit substrate are installed on the shell radiator, and the shell radiator includes fitting surface, and the fitting surface is opened
Equipped with the non-power container for accommodating the non-power device, the power device is installed on the fitting surface, so that institute
Heat can be transmitted to the shell radiator by stating power device.
In some embodiments, the direction of the fitting surface towards the circuit substrate is convexly equipped with support portion；The circuit base
Plate is installed on one end that the support portion deviates from the fitting surface；The support portion and the shell radiator integrated form.
In some embodiments, the fitting surface is additionally provided with the first heat carrier；First heat carrier is installed on described
Between fitting surface and the radiating surface of the power device.
In some embodiments, first heat carrier is made by isolation material.
In some embodiments, the power device is arranged close to the edge of the circuit substrate.
In some embodiments, the non-power device includes magnetic device；The magnetic device is welded in the circuit
Substrate, and it is located at the power device the same side of the circuit substrate；The non-power container includes for accommodating
First container of the magnetic device；The magnetic device is contained in first container, and the magnetic device with
The cell wall of first container is connected, so that the magnetic device can transmit heat to the shell radiator.
In some embodiments, the cell wall of first container is provided with the second heat carrier；Second heat carrier connects
It is connected between the cell wall of first container and the radiating surface of the magnetic device.
In some embodiments, second heat carrier is heat-conducting pad or casting glue.
In some embodiments, the shell radiator is made by metal material.
On the other hand, a kind of electronic equipment, including photovoltaic DC-to-AC converter as described above are provided.
Compared with prior art, in the electronic equipment of the utility model embodiment and its photovoltaic DC-to-AC converter, the light
Lying prostrate inverter includes: circuit substrate；Power device is welded in the circuit substrate；Non-power device is welded in the circuit base
Plate, and it is located at the power device the same side of the circuit substrate；Shell radiator, the circuit substrate are installed on institute
Shell radiator is stated, the shell radiator includes fitting surface, and the fitting surface is offered for accommodating the non-power device
Non-power container, the power device is installed on the fitting surface, so that the power device can transmit heat to described
Shell radiator.By the above-mentioned means, the fitting surface of shell radiator is provided with the receipts of the non-power for accommodating non-power device
Tank, power device are installed on the fitting surface of shell radiator, and can transmit heat to shell radiator, it can be achieved that power device
Part and non-power device can be located at the same side of circuit substrate, and power device and non-power device can cross wave soldering together, keep away
Exempt from power device and needed independent repair welding, leads to the problem that production efficiency is lower.
[Detailed description of the invention]
One or more embodiments are illustrated by corresponding attached drawing, these exemplary illustrations not structure
The restriction of pairs of embodiment, the element with same reference numbers label is expressed as similar element in attached drawing, unless there are special
It declares, composition does not limit the figure in attached drawing.
Fig. 1 is a kind of structural schematic diagram of the utility model photovoltaic DC-to-AC converter that wherein an embodiment provides, wherein view
Direction is top view；
Fig. 2 is the diagrammatic cross-section of an angle of photovoltaic DC-to-AC converter shown in FIG. 1, and wherein view direction is left view；
Fig. 3 is the partial enlarged view at I shown in Fig. 2；
Fig. 4 is the partial enlarged view at II shown in Fig. 2；
Fig. 5 is the diagrammatic cross-section of another angle of photovoltaic DC-to-AC converter shown in FIG. 1, and wherein view direction is right view
Figure.
[specific embodiment]
For the ease of understanding the utility model, in the following with reference to the drawings and specific embodiments, the utility model is carried out more detailed
Thin explanation.It should be noted that it can be directly in another element when element is expressed " being fixed on " another element
Upper or placed in the middle there may be one or more therebetween elements.When an element is expressed " connection " another element, it can
To be directly to another element or elements placed in the middle there may be one or more therebetween.This specification is used
Term "vertical", "horizontal", "left" and "right", "inner", "outside" and similar statement for illustrative purposes only.
Unless otherwise defined, technical and scientific term all used in this specification and the skill for belonging to the utility model
The normally understood meaning of the technical staff in art field is identical.Term used in the description of the utility model is intended merely to
The purpose for describing specific embodiment is not intended to limitation the utility model.Term "and/or" used in this specification includes
Any and all combinations of one or more related listed items.
Referring to Fig. 1, being a kind of the utility model photovoltaic DC-to-AC converter 100 that wherein an embodiment provides, including shell dissipates
Hot device 10, circuit substrate 20, power device 30 and non-power device (figure does not indicate).Wherein, the power device 30 and non-
Power device is welded in the circuit substrate 20, and the power device 30 and the non-power device are located at the circuit
The same side of substrate 20, the circuit substrate 20 is installed on the shell radiator 10, so that the power device 30 and NOT function
Rate device is respectively positioned in the shell radiator 10.
The circuit substrate 20 is PCB (Printed circuit board) wiring board, is in the present embodiment multilayer wire
Road plate, it is to be understood that according to the actual situation, circuit substrate 20 or single sided board.
The power device 30 can be IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar
Transistor npn npn device), high power transistor, bidirectional transistor, thyristor, (Gate Turn-Off Thyristor, can break GTO
Thyristor) device, MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor, MOSFET,
Metal-oxide half field effect transistor is a kind of field-effect transistor that can be widely used in analog circuit and digital circuit) device etc., institute
Power device 30 is stated to be arranged close to the edge of the circuit substrate 20.
The non-power device includes magnetic device 40, common mode inductance 50, bus capacitor 60 and other components, such as
Resistor, filter, overcurrent/short circuit protection device, overheat protector device, lightning protection device etc..
The magnetic device 40 can be made of winding and magnetic core, be used for energy storage, energy conversion or electrical in circuit
Isolation etc..
The common mode inductance 50 can be made of skeleton, winding, magnetic core or iron core, shielding case, encapsulating material etc., in electricity
Being mainly used for EMI in road, (Electromagnetic Interference refers to that electronic product work can be to other electronics on periphery
Product interferes) filter action, avoid the normal work for influencing non-power device under power grid and same electromagnetic environment.
The bus capacitor 60 can be DC bus capacitance.
Referring to Figure 2 together, the shell radiator 10 can be made by metal material, such as the shell radiator 10 is
Aluminium material, can form the shell radiator 10 by integrated die-cast aluminum, and the shell radiator 10 includes fitting surface 11.
The power device 30 is installed on the fitting surface 11, so that the power device 30 can transmit heat to described outer
Shell radiator 10.
Also referring to Fig. 3, specifically, the fitting surface 11 is provided with the first heat carrier 110 and described for accommodating
The groove (figure does not indicate) of first heat carrier 110, first heat carrier 110 can be made by isolation material, such as described first
Heat carrier 110 is ceramic substrate, and first heat carrier 110 is located at the radiating surface of the fitting surface 11 and the power device 30
Between, the power device 30, the first heat carrier 110 and the shell are worn by the bolt column of a bolt 70 respectively and radiated
Device 10, and be threadedly coupled with a nut (not shown), so that the nut is abutted against with the shell radiator 10, and described
The bolt head of bolt 70 is abutted against with the power device 30, and 110 held tight of the first heat carrier is in the power device
Between 30 radiating surface and the fitting surface 11, first heat carrier 110 can be by the heat transfer of the power device 30 extremely
The shell radiator 10.
The fitting surface 11 of the shell radiator 10 is additionally provided with non-power container (figure does not indicate), and the non-power is received
Tank is for accommodating the non-power device.
The non-power container includes the first container (figure does not indicate), the second container (figure does not indicate) and third
Container (figure does not indicate).
First container is for accommodating the magnetic device 40, and the magnetic device 40 and first receiving
The cell wall of slot is connected, so that the magnetic device 40 can transmit heat to the shell radiator 10.
Referring to Figure 4 together, specifically, the cell wall of first container is provided with the second heat carrier 111.Described second
Heat carrier 111 can be heat-conducting pad or casting glue, and second heat carrier 111 is connected to the cell wall of first container
Between the radiating surface of the magnetic device 40, second heat carrier 111 is used for the heat transfer of the magnetic device 40
To the shell radiator 10.
Second container is for accommodating the common mode inductance 50, and the common mode inductance 50 and second receiving
The cell wall of slot is connected, so that the common mode inductance 50 can transmit heat to the shell radiator 10.
Please refer to fig. 5, specifically, the cell wall of second container is provided with third heat carrier 112.The third
Heat carrier 112 can be heat-conducting pad or casting glue, and the third heat carrier 112 is connected to the cell wall of second container
Between the radiating surface of the common mode inductance 50, the third heat carrier 112 is used for the heat transfer of the magnetic device 50
To the shell radiator 10.
The third container is for accommodating the bus capacitor 60.
It can be arbitrarily connected between first container, the second container and third container.
The fitting surface 11 of the shell radiator 10 is also extended with support portion 113.The support portion 113 is from the fitting surface
11 extend to the direction of the circuit substrate 20, and the circuit substrate 20 is installed on the support portion 113 far from the fitting surface
11 one end.The support portion 113 is integrally formed with the shell radiator 10.
Specifically, the support portion 113 is provided with threaded hole (not shown), the spiral shell far from the end face of the fitting surface 11
Pit can wear the circuit substrate by a screw (not shown) by the drilling of the end face of support portion 113 and tapping and forming
20 and with the corresponding threaded holes close, the circuit substrate 20 can be fixedly installed in the support portion 113.
Another embodiment of the utility model also provides a kind of electronic equipment, the photovoltaic DC-to-AC converter 100 including above-described embodiment.
Compared with prior art, the utility model embodiment provides a kind of electronic equipment and its photovoltaic DC-to-AC converter 100,
Described in photovoltaic DC-to-AC converter 100 include: circuit substrate 20；Power device 30 is welded in the circuit substrate 20；Non-power device
Part is welded in the circuit substrate 20, and is located at the same side of the circuit substrate 20 with the power device 30；Shell dissipates
Hot device 10, the circuit substrate 20 are installed on the shell radiator 10, and the shell radiator 10 includes fitting surface 11, described
Fitting surface 11 offers the non-power container for accommodating the non-power device, and the power device 30 is installed on the dress
With face 11, so that the power device 30 can transmit heat to the shell radiator 10.By the above-mentioned means, shell radiator
10 fitting surface 11 is provided with the non-power container for accommodating non-power device, and power device 30 is installed on shell radiator
10 fitting surface 11, and heat can be transmitted to shell radiator 10, it can be achieved that power device 30 can be located at non-power device
The same side of circuit substrate 20, power device 30 and non-power device can cross wave soldering together, and avoiding power device 30 needs
Independent repair welding is wanted, the problem that production efficiency is lower is caused.
In addition, shell radiator 10 is integrated compression moulding structure, support portion 113 and 10 one of shell radiator are melted into
Type, sound construction and compact.
In addition, magnetic device 40 is welded on circuit substrate 20, connecting cable and relevant connection terminal are eliminated, is mentioned simultaneously
The high inner space utilization rate of shell radiator 10.
In addition, the layout of power device 30 is avoided opening up mounting hole on circuit substrate 20, greatly be mentioned at 20 edge of circuit substrate
The high utilization rate of circuit substrate 20.
Finally, power device 30 and non-power device are welded in the same surface of circuit substrate 20, circuit substrate 20 is pacified
Loaded on shell radiator 10, so that power device 30 and non-power device are located in shell radiator 10, space utilization rate is high.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Under the thinking of the utility model, it can also be combined between the technical characteristic in above embodiments or different embodiments,
Step can be realized with random order, and there are many other variations of the different aspect of the utility model as described above, be
Simplicity, they do not provide in details；Although the utility model is described in detail with reference to the foregoing embodiments, this
The those of ordinary skill in field it is understood that it is still possible to modify the technical solutions described in the foregoing embodiments,
Or equivalent replacement of some of the technical features；And these are modified or replaceed, and do not make the sheet of corresponding technical solution
Matter departs from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. a kind of photovoltaic DC-to-AC converter characterized by comprising
Circuit substrate；
Power device is welded in the circuit substrate；
Non-power device is welded in the circuit substrate, and is located at the same side of the circuit substrate with the power device；
Shell radiator, the circuit substrate are installed on the shell radiator, and the shell radiator includes fitting surface, described
Fitting surface offers the non-power container for accommodating the non-power device, and the power device is installed on the assembly
Face, so that the power device can transmit heat to the shell radiator.
2. photovoltaic DC-to-AC converter according to claim 1, which is characterized in that
The direction of the fitting surface towards the circuit substrate is convexly equipped with support portion；
The circuit substrate is installed on one end that the support portion deviates from the fitting surface；
The support portion and the shell radiator integrated form.
3. photovoltaic DC-to-AC converter according to claim 2, which is characterized in that the fitting surface is additionally provided with the first heat carrier；
First heat carrier is installed between the fitting surface and the radiating surface of the power device.
4. photovoltaic DC-to-AC converter according to claim 3, which is characterized in that first heat carrier is made by isolation material.
5. photovoltaic DC-to-AC converter according to any one of claims 1 to 4, which is characterized in that the power device is close to described
The edge of circuit substrate is arranged.
6. photovoltaic DC-to-AC converter according to any one of claims 1 to 4, which is characterized in that the non-power device includes magnetic
Property device；
The magnetic device is welded in the circuit substrate, and is located at the same of the circuit substrate with the power device
Side；
The non-power container includes the first container for accommodating the magnetic device；
The magnetic device is contained in first container, and the cell wall phase of the magnetic device and first container
Even, so that the magnetic device can transmit heat to the shell radiator.
7. photovoltaic DC-to-AC converter according to claim 6, which is characterized in that the cell wall of first container is provided with second
Heat carrier；
Second heat carrier is connected between the cell wall of first container and the radiating surface of the magnetic device.
8. photovoltaic DC-to-AC converter according to claim 7, which is characterized in that second heat carrier is heat-conducting pad or filling
Sealing.
9. photovoltaic DC-to-AC converter according to any one of claims 1 to 4, which is characterized in that the shell radiator is by metal
Material is made.
10. a kind of electronic equipment, which is characterized in that including the described in any item photovoltaic DC-to-AC converters of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821493661.2U CN208924125U (en) | 2018-09-12 | 2018-09-12 | A kind of electronic equipment and its photovoltaic DC-to-AC converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821493661.2U CN208924125U (en) | 2018-09-12 | 2018-09-12 | A kind of electronic equipment and its photovoltaic DC-to-AC converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208924125U true CN208924125U (en) | 2019-05-31 |
Family
ID=66705264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821493661.2U Active CN208924125U (en) | 2018-09-12 | 2018-09-12 | A kind of electronic equipment and its photovoltaic DC-to-AC converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208924125U (en) |
-
2018
- 2018-09-12 CN CN201821493661.2U patent/CN208924125U/en active Active
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