CN209731056U - A kind of novel assembling structure of electric generator frequency-converter - Google Patents
A kind of novel assembling structure of electric generator frequency-converter Download PDFInfo
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- CN209731056U CN209731056U CN201920909700.0U CN201920909700U CN209731056U CN 209731056 U CN209731056 U CN 209731056U CN 201920909700 U CN201920909700 U CN 201920909700U CN 209731056 U CN209731056 U CN 209731056U
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Abstract
The utility model provides a kind of novel assembling structure of electric generator frequency-converter, including radiating machine casing and circuit board, the concave inner bottom surface of radiating machine casing is extended with multiple heat transfer convex surfaces to top, each heat transfer convex surface is equipped with insulating heat-conductive gasket, circuit board upper surface is equipped with multiple welding sections, each welding section patch is welded with including silicon-controlled, a high-power electric appliance element including diode or IGBT, several via holes are offered on the corresponding circuit board in each welding section, the heat transfer medium for conduction and high power electric elements bottom surface own metal layer heat is filled in each via hole, it is respectively corresponded on the concave inner bottom surface and circuit board of radiating machine casing equipped with multiple threaded holes, threaded hole internal screw thread is connected with bolt, the insulating heat-conductive gasket being arranged on each corresponding circuit board lower surface in welding section and a heat transfer convex surface is close under bolt effect Contact.It is more time saving and energy saving that the application assembles on the basis of guaranteeing silicon-controlled, diode and IGBT high-power electric appliance element radiating effect.
Description
Technical field
The utility model relates to electric generator frequency-converter technical fields, and in particular to a kind of novel assembly knot of electric generator frequency-converter
Structure.
Background technique
Currently, electric generator frequency-converter has had been widely used with the continuous improvement of industrial automatization,
It is able to satisfy domestic civilian power generation and commonly uses/non-firm power demand.Electric generator frequency-converter is mainly by radiating machine casing, rectification unit and inversion
The composition such as unit, rectification unit are mainly used for the three-phase alternating-current supply that generator generates being transformed into DC power supply, inversion unit
It is mainly used for the DC voltage that rectification unit exports being transformed into two-phase alternating current pressure, with for users to use.Wherein, rectification unit
Rectification mainly is realized by three silicon-controlled and three diodes composition three-phase full wave rectifier circuits, and inversion unit is main
It is the H bridge being made up of four IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar transistor)
To adjust the voltage and frequency of out-put supply, supply voltage required for providing it according to the actual needs of motor, Jin Erda
To the purpose of energy conservation and speed regulation.
The utility model inventor has found that silicon-controlled and diode and inversion in existing rectification unit
IGBT in unit is welded on the circuit board of electric generator frequency-converter using inserting mode, i.e., first by silicon-controlled, diode
Intert in via hole preset on circuit boards with the electrode pin of IGBT, later back to silicon-controlled, diode and IGBT ontology
Another surface of circuit board welded；However the mode that this first grafting is welded again takes time and effort very much, often has rosin joint, connects
The bad welding phenomena such as weldering occurs, and due to needing on another surface of circuit board back to silicon-controlled, diode and IGBT ontology
It is welded, thus welding operates very inconvenient while silicon-controlled, diode and IGBT belongs to high-power electric appliance member again
Part, thus how on the basis of guaranteeing high-power electric appliance element radiating effect innovative development one kind is silicon-controlled, diode and
The novel mounting structure of IGBT just seems very necessary.
Utility model content
For in existing electric generator frequency-converter silicon-controlled, diode and IGBT high-power electric appliance element using grafting
The mode of welding, thus exist and take time and effort, often there are rosin joint, the even bad welding phenomena appearance such as weldering, welds inconvenient for operation
The technical issues of, the utility model provides a kind of novel assembling structure of electric generator frequency-converter.
In order to solve the above-mentioned technical problem, the utility model uses the following technical solution:
A kind of novel assembling structure of electric generator frequency-converter, including radiating machine casing and circuit board, the concave of the radiating machine casing
Inner bottom surface is extended with multiple heat transfer convex surfaces to radiating machine casing top-direction, is provided with insulating heat-conductive pad on each heat transfer convex surface
Piece, the upper surface of the circuit board are equipped with the multiple welding sections for being suitable for welding high-power electric appliance element, and each welding section is logical
Cross the high-power electric appliance element that scolding tin patch is welded with including silicon-controlled, diode or IGBT, each welding
Several via holes of perforation circuit board upper and lower surface are offered on the corresponding circuit board in area, are filled with and are used in each via hole
The heat transfer medium of conduction and high power electric elements bottom surface own metal layer heat, the concave inner bottom surface and circuit of the radiating machine casing
It is respectively corresponded on plate equipped with multiple threaded holes, the threaded hole internal screw thread is connected with bolt, the corresponding electricity in each welding section
The insulating heat-conductive gasket being arranged on road plate lower surface and a convex surface of conducting heat is in close contact under bolt effect.
Compared with prior art, the novel assembling structure of electric generator frequency-converter provided by the utility model will be wrapped by scolding tin
It includes multiple high-power electric appliance elements including silicon-controlled, diode and IGBT and the multiple of circuit board is welded on patch welding manner
On welding section, i.e., patch welding manner can guarantee that the ontology of high-power electric appliance element and electrode pin are located at the same of circuit board
A surface, thus it is highly convenient for patch welding operation, probability that is time saving and energy saving, and rosin joint occurring, connect the bad welding phenomenas such as weldering
It substantially reduces；Meanwhile the multiple heat transfer convex surfaces extended to radiating machine casing top-direction are equipped in the inside of radiating machine casing, it conducts heat convex
It is equipped with insulating heat-conductive gasket on face, and offers several for penetrating through circuit board upper and lower surface on the corresponding circuit board in welding section
Via hole is filled with the heat transfer medium for conduction and high power electric elements bottom surface own metal layer heat in each via hole, thus
The insulating heat-conductive gasket being arranged on each corresponding circuit board lower surface in welding section and a heat transfer convex surface is tight under bolt effect
After touch, the heat that high-power electric appliance element generates can sequentially pass through high-power electric appliance element bottom surface own metal layer, heat transfer to contiguity
Medium and heat transfer convex surface are transferred to radiating machine casing and radiate, and the heat dissipation effect of each high-power electric appliance element has thus been effectively ensured
Fruit.
Further, the insulating heat-conductive gasket selects insulating heat-conductive silica gel piece.
Further, multiple mistakes of perforation circuit board upper and lower surface are offered on the corresponding circuit board in each welding section
Hole, the via hole are the soldering hole that scolding tin heat transfer medium is filled in hole, and the aperture of the soldering hole is 0.5~1.2mm.
Further, a mistake of perforation circuit board upper and lower surface is offered on the corresponding circuit board in each welding section
Hole, the via hole are the suit hole that copper post heat transfer medium is plugged in hole, and the aperture of the suit hole is 8.0~14.0mm.
Detailed description of the invention
Fig. 1 is the novel assembling structure schematic diagram of the first electric generator frequency-converter provided by the utility model.
Fig. 2 is the Via Design structural schematic diagram in Fig. 1 on circuit board.
Fig. 3 is the novel assembling structure schematic diagram of second of electric generator frequency-converter provided by the utility model.
Fig. 4 is the Via Design structural schematic diagram in Fig. 3 on circuit board.
In figure, 1, radiating machine casing；11, heat transfer convex surface；2, circuit board；21, high-power electric appliance element；22, via hole；23, it passes
Thermal medium；3, insulating heat-conductive gasket；4, threaded hole；5, bolt.
Specific embodiment
In order to be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, under
Face combines and is specifically illustrating, and the utility model is further described.
In the description of the present invention, it should be understood that term " longitudinal direction ", " radial direction ", " length ", " width ", " thickness
The side of the instructions such as degree ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside"
Position or positional relationship are to be based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description the utility model and simplification is retouched
It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it should not be understood as limiting the present invention.In the description of the present invention, unless otherwise indicated, " multiple " contain
Justice is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
It please refers to shown in Fig. 1, the utility model provides a kind of novel assembling structure of electric generator frequency-converter, including radiating machine casing
1 and circuit board 2, the radiating machine casing 1 preferably uses aluminum shell, and the concave inner bottom surface of the radiating machine casing 1 is to radiating machine casing top
Portion direction is extended with multiple heat transfer convex surfaces 11, i.e., multiple heat transfer convex surfaces 11 are integrally formed in the concave of radiating machine casing 1 bottom simultaneously
Extend to 1 top-direction of radiating machine casing, is provided with insulating heat-conductive gasket 3 on each heat transfer convex surface 11, the circuit board 2
Upper surface is equipped with the multiple welding sections for being suitable for welding high-power electric appliance element 21, and each welding section is welded by scolding tin patch
There is a high-power electric appliance element including silicon-controlled, diode or IGBT, the corresponding circuit board in each welding section
On offer several via holes 22 of perforation circuit board upper and lower surface, be filled with for conduction and high power in each via hole 22
The heat transfer medium 23 of electric elements bottom surface own metal layer heat, on the concave inner bottom surface and circuit board 2 of the radiating machine casing 1 point
It is not correspondingly provided with multiple threaded holes 4,4 internal screw thread of threaded hole is connected with bolt 5, the corresponding circuit board in each welding section
The insulating heat-conductive gasket 3 being arranged on lower surface and a convex surface 11 of conducting heat is in close contact under the effect of bolt 5, i.e., the described heat dissipation machine
After shell 1 and circuit board 2 are fixedly connected by bolt 5, the corresponding circuit board lower surface in the welding section will be with insulating heat-conductive gasket 3
Contact, with the heat transfer that generates high-power electric appliance element by the heat transfer medium 23 and insulating heat-conductive gasket 3 to radiating
Casing 1 radiates, and specific heat transfer direction is as shown in the arrow direction in Fig. 1 and Fig. 3.
Compared with prior art, the novel assembling structure of electric generator frequency-converter provided by the utility model will be wrapped by scolding tin
It includes multiple high-power electric appliance elements including silicon-controlled, diode and IGBT and the multiple of circuit board is welded on patch welding manner
On welding section, i.e., patch welding manner can guarantee that the ontology of high-power electric appliance element and electrode pin are located at the same of circuit board
A surface, thus it is highly convenient for patch welding operation, probability that is time saving and energy saving, and rosin joint occurring, connect the bad welding phenomenas such as weldering
It substantially reduces；Meanwhile the multiple heat transfer convex surfaces extended to radiating machine casing top-direction are equipped in the inside of radiating machine casing, it conducts heat convex
It is equipped with insulating heat-conductive gasket on face, and offers several for penetrating through circuit board upper and lower surface on the corresponding circuit board in welding section
Via hole is filled with the heat transfer medium for conduction and high power electric elements bottom surface own metal layer heat in each via hole, thus
The insulating heat-conductive gasket being arranged on each corresponding circuit board lower surface in welding section and a heat transfer convex surface is tight under bolt effect
After touch, the heat that high-power electric appliance element generates can sequentially pass through high-power electric appliance element bottom surface own metal layer, heat transfer to contiguity
Medium and heat transfer convex surface are transferred to radiating machine casing and radiate, and the heat dissipation effect of each high-power electric appliance element has thus been effectively ensured
Fruit.
As specific embodiment, the insulating heat-conductive gasket 3 selects existing insulating heat-conductive silica gel piece, the insulating heat-conductive
Silica gel piece is the various auxiliary materials such as addition metal oxide using silica gel as substrate, a kind of heat-conducting medium synthesized by special process
Material, the effects of being mainly used for the heat transmitting of completion heating position and radiating part interdigit, while also acting as insulation, damping, sealing,
The design requirement that can satisfy device miniaturization and ultrathin is a kind of splendid conductive filler material.
It as the first specific embodiment, please refers to shown in Fig. 1 and Fig. 2, on the corresponding circuit board 2 in each welding section
Multiple via holes 22 of perforation circuit board upper and lower surface are offered, the via hole 22 is the soldering that scolding tin heat transfer medium is filled in hole
Hole, i.e. the interior heat transfer medium 23 loaded of the via hole 22 is scolding tin, and the aperture of the soldering hole is 0.5~1.2mm, thus every
Several tiny via holes can be formed on the corresponding circuit board in a welding section, by being coated with scolding tin in via hole, can be realized logical
Scolding tin is crossed as a heat transfer medium to transmit the heat that high-power electric appliance element generates.
It as second of specific embodiment, please refers to shown in Fig. 3 and Fig. 4, on the corresponding circuit board 2 in each welding section
A via hole 22 of perforation circuit board upper and lower surface is offered, the via hole 22 is the suit that copper post heat transfer medium is plugged in hole
Hole, i.e. the interior heat transfer medium 23 being socketed of the via hole 22 is a copper post, and the aperture of the suit hole is 8.~14.0mm, thus
Compared to the first aforementioned specific embodiment, small number of via hole can be formed on the corresponding circuit board in each welding section, led to
Suit or grafting copper post in via hole are crossed, can be realized and generated as a heat transfer medium to transmit high-power electric appliance element by copper post
Heat, and due to the thermal conductivity of copper post height, the heat that can preferably generate high-power electric appliance element, which is oriented to, to be dissipated
Heat engine shell.
Finally, it is stated that above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, although ginseng
The utility model is described in detail according to preferred embodiment, those skilled in the art should understand that, it can be to this
The technical solution of utility model is modified or replaced equivalently, without departing from the objective and model of technical solutions of the utility model
It encloses, should all cover in the scope of the claims of the utility model.
Claims (4)
1. a kind of novel assembling structure of electric generator frequency-converter, including radiating machine casing and circuit board, which is characterized in that the heat dissipation machine
The concave inner bottom surface of shell is extended with multiple heat transfer convex surfaces to radiating machine casing top-direction, is provided on each heat transfer convex surface absolutely
Edge heat-conducting pad, the upper surface of the circuit board is equipped with the multiple welding sections for being suitable for welding high-power electric appliance element, each described
Welding section is welded with a high-power electric appliance element including silicon-controlled, diode or IGBT by scolding tin patch, each
Several via holes of perforation circuit board upper and lower surface are offered on the corresponding circuit board in the welding section, each via hole is built-in
It is filled with the heat transfer medium for conduction and high power electric elements bottom surface own metal layer heat, bottom in the concave of the radiating machine casing
It is respectively corresponded on face and circuit board equipped with multiple threaded holes, the threaded hole internal screw thread is connected with bolt, each welding section
The insulating heat-conductive gasket being arranged on corresponding circuit board lower surface and a convex surface of conducting heat is in close contact under bolt effect.
2. the novel assembling structure of electric generator frequency-converter according to claim 1, which is characterized in that the insulating heat-conductive gasket
Select insulating heat-conductive silica gel piece.
3. the novel assembling structure of electric generator frequency-converter according to claim 1, which is characterized in that each welding section pair
Multiple via holes of perforation circuit board upper and lower surface are offered on the circuit board answered, the via hole is to be filled with scolding tin heat transfer in hole to be situated between
The soldering hole of matter, the aperture of the soldering hole are 0.5~1.2mm.
4. the novel assembling structure of electric generator frequency-converter according to claim 1, which is characterized in that each welding section pair
A via hole of perforation circuit board upper and lower surface is offered on the circuit board answered, the via hole is to be plugged with copper post heat transfer in hole to be situated between
The suit hole of matter, the aperture of the suit hole are 8.0~14.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920909700.0U CN209731056U (en) | 2019-06-17 | 2019-06-17 | A kind of novel assembling structure of electric generator frequency-converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920909700.0U CN209731056U (en) | 2019-06-17 | 2019-06-17 | A kind of novel assembling structure of electric generator frequency-converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209731056U true CN209731056U (en) | 2019-12-03 |
Family
ID=68675425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920909700.0U Active CN209731056U (en) | 2019-06-17 | 2019-06-17 | A kind of novel assembling structure of electric generator frequency-converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209731056U (en) |
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2019
- 2019-06-17 CN CN201920909700.0U patent/CN209731056U/en active Active
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