CN209627822U - A kind of half-bridge module welding structure - Google Patents
A kind of half-bridge module welding structure Download PDFInfo
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- CN209627822U CN209627822U CN201920111832.9U CN201920111832U CN209627822U CN 209627822 U CN209627822 U CN 209627822U CN 201920111832 U CN201920111832 U CN 201920111832U CN 209627822 U CN209627822 U CN 209627822U
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- circuit board
- fixed
- conductive sheet
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- top shell
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Abstract
The utility model discloses a kind of half-bridge module welding structures, more particularly to module encapsulation field, including substrate, the substrate quadrangle is equipped with fixed station, the substrate top is equipped with top shell, the top shell quadrangle is equipped with limiting slot, IGBT module component is equipped in the middle part of the top shell, the substrate top is equipped with circuit board, conductive sheet is equipped between the circuit board and IGBT module component, the conductive sheet side is equipped with fixed frame, the circuit board side is equipped with positive terminal pole, the circuit board other side is equipped with negative terminal pole, fixed station bottom end outer wall is equipped with fixing groove, the limiting slot bottom end is equipped with fixed raised line.The utility model can protect circuit board by being equipped with fixed station, top shell and fixed frame, top shell, and the service life of the device can be improved, and using ultrasonic welding mode, conductive sheet is fixed on circuit board, equipment can be reduced and production cost is low, improved and produce efficiency.
Description
Technical field
The utility model relates to module packaging technique fields, more specifically, originally practical to be related to a kind of half-bridge module welding
Structure.
Background technique
In IGBT module encapsulation field, belong to microelectronic industry, IGBT be combined by MOSFET and bipolar junction transistor and
At a kind of device, the advantages of it has merged both devices, both had that MOSFET element driving power is small and switching speed was fast
The advantages of, and having the advantages that bipolar device saturation pressure reduces and capacity is big, frequency characteristic is brilliant between MOSFET and power
Between body pipe, it can work normally in tens KHZ frequency ranges, be widely applied in modern industry electronic technology, such as frequency converter, it is empty
It adjusts, welding machine, photovoltaic, automobile and other industries.
The utility model patent of patent application publication CN208157401U discloses a kind of IGBT half-bridge module structure, left
Road DBC is equipped with left igbt chip and left FRD chip, and left igbt chip and left FRD chip are welded on by tin cream
The upper end left DBC, left igbt chip lead to the pole left G signal terminal, and left FRD chip leads to the pole left E signal end
Son；Right wing DBC is equipped with right wing igbt chip and right wing FRD chip, right wing igbt chip and right wing FRD chip and is welded by tin cream
It connects in the upper end right wing DBC, right wing igbt chip is connect with right wing FRD chip, and right wing igbt chip leads to the pole right wing G signal end
Son and the pole right wing E signal terminal.
The IGBT half-bridge module structure of above-mentioned patent is using solder pasting processes (vacuum back-flow welding machine), equipment and production cost
Height, production qualification rate is low (about 85%), quality can not control, production efficiency can not improve.
Utility model content
In order to overcome the drawbacks described above of the prior art, the embodiments of the present invention provide a kind of half-bridge module welding knot
Structure can protect circuit board by top shell, the service life of the device can be improved, pass through ultrasonic welding using ultrasonic drilling machine
Conductive sheet bottom end and circuit board junction are reinforced stability by fixed frame, can reduce equipment and production cost is low, mention by mode
High yield efficiency.
To achieve the above object, the utility model provides the following technical solutions: a kind of half-bridge module welding structure, including base
Plate, the substrate quadrangle are equipped with fixed station, and the substrate top is equipped with top shell, and the top shell quadrangle is equipped with limiting slot, institute
State and be equipped with IGBT module component in the middle part of top shell, the substrate top is equipped with circuit board, the circuit board and IGBT module component it
Between be equipped with conductive sheet, the conductive sheet side be equipped with fixed frame, the circuit board side be equipped with positive terminal pole, the circuit board
The other side is equipped with negative terminal pole, and fixed station bottom end outer wall is equipped with fixing groove, and the limiting slot bottom end is equipped with fixed raised line.
In a preferred embodiment, the conductive sheet, fixed frame and positive terminal pole are made of copper material,
The conductive sheet and fixed frame length are adapted.
In a preferred embodiment, positive terminal pole bottom end is equipped with power connecting sheet, the power connecting sheet and circuit
Conductor wire is equipped between plate.
In a preferred embodiment, between the circuit board and fixed frame and conductive sheet, positive terminal pole bottom end
Ultrasonic welding is carried out by ultrasonic drilling machine between power connecting sheet.
In a preferred embodiment, fixed hole, the limiting slot and fixed station are equipped with inside the fixed station
It is adapted, the fixed raised line and fixing groove snapping.
In a preferred embodiment, the IGBT module component includes metal-oxide half field effect transistor and PNP bipolar
Transistor npn npn, the metal-oxide half field effect transistor are set as input pole, and the PNP bipolar junction transistor is set as output stage.
The technical effect and advantage of the utility model:
The utility model can protect circuit board by being equipped with fixed station, top shell and fixed frame, top shell, this can be improved
Conductive sheet is fixed on circuit board by the service life of device using ultrasonic drilling machine by ultrasonic welding mode, then passes through fixation
Stability is reinforced in conductive sheet bottom end and circuit board junction by frame, using same ultrasonic welding mode by positive terminal pole with connect
Production qualification rate can be improved to 99%, reduce equipment and production cost is low, improve and produce effect by electric piece welding, ultrasonic welding mode
Rate.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is the top view of the utility model.
Fig. 3 is the schematic diagram of substrate structure of the utility model.
Fig. 4 is the overall structure topological diagram of the utility model.
Appended drawing reference are as follows: 1 substrate, 2 fixed stations, 3 top shells, 4 limiting slots, 5 IGBT module components, 6 circuit boards, 7 conductions
Piece, 8 fixed frames, 9 positive terminal poles, 10 negative terminal poles, 11 fixing grooves, 12 fixed raised lines.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model provides a kind of half-bridge module welding structure as shown in Figs 1-4, including substrate 1, the substrate 1
Quadrangle is equipped with fixed station 2, is equipped with top shell 3 at the top of the substrate 1,3 four jiaos of the top shell is equipped with limiting slot 4, the top shell 3
Middle part is equipped with IGBT module component 5, circuit board 6 is equipped at the top of the substrate 1, between the circuit board 6 and IGBT module component 5
Equipped with conductive sheet 7,7 side of conductive sheet is equipped with fixed frame 8, and 6 side of circuit board is equipped with positive terminal pole 9, the electricity
Plate 6 other side in road is equipped with negative terminal pole 10, and the 2 bottom end outer wall of fixed station is equipped with fixing groove 11, and 4 bottom end of limiting slot is set
There is fixed raised line 12.
Further, in the above-mentioned technical solutions, the conductive sheet 7, fixed frame 8 and positive terminal pole 9 are by copper material
Material is made, and the conductive sheet 7 and 8 length of fixed frame are adapted；
Further, in the above-mentioned technical solutions, 9 bottom end of positive terminal pole be equipped with power connecting sheet, the power connecting sheet with
It is equipped with conductor wire between circuit board 6, using ultrasonic drilling machine by ultrasonic welding mode, conductive sheet 7 is fixed on circuit board 6,
7 bottom end of conductive sheet and 6 junction of circuit board are reinforced by stability by fixed frame 8 again；
Further, in the above-mentioned technical solutions, between the circuit board 6 and fixed frame 8 and conductive sheet 7, positive terminal
Ultrasonic welding is carried out by ultrasonic drilling machine between 9 bottom end of pole and power connecting sheet, ultrasonic welding mode can improve production qualification rate
To 99%, reduces equipment and production cost is low, improve and produce efficiency；
Further, in the above-mentioned technical solutions, be equipped with fixed hole inside the fixed station 2, the limiting slot 4 with it is solid
Determine platform 2 to be adapted, the fixed raised line 12 is completed with 11 snapping of fixing groove by the snapping of fixed raised line 12 and fixing groove 11
The fixation of top shell 3 and 1 position of substrate, top shell 3 can protect circuit board 6, the service life of the device can be improved, reduction makes
Workload of the user to maintenance or the maintenance of the device；
Further, in the above-mentioned technical solutions, the IGBT module component 5 includes metal-oxide half field effect transistor and PNP
Bipolar junction transistor, the metal-oxide half field effect transistor are set as input pole, and the PNP bipolar junction transistor is set as exporting
Pole connects the circuit of circuit board 6 through positive terminal pole 9 with negative terminal pole 10, from metal-oxide half field effect transistor (MOSFET) to
6 input electrical signal of circuit board exports control signal by PNP bipolar junction transistor.
Utility model works principle:
Referring to Figure of description 1-4, the circuit of circuit board 6 is connected with negative terminal pole 10 through positive terminal pole 9, by golden oxygen
Half field effect transistor (MOSFET) exports control signal to 6 input electrical signal of circuit board, by PNP bipolar junction transistor, and logical
The snapping for crossing fixed raised line 12 and fixing groove 11, completes the fixation of top shell 3 and 1 position of substrate, and top shell 3 can carry out circuit board 6
The service life of the device can be improved in protection, reduces user to the workload of maintenance or the maintenance of the device.
The several points that should finally illustrate are: firstly, in the description of the present application, it should be noted that unless otherwise prescribed and
It limits, term " installation ", " connected ", " connection " shall be understood in a broad sense, can be mechanical connection or electrical connection, be also possible to two
Connection inside element, can be directly connected, and "upper", "lower", "left", "right" etc. are only used for indicating relative positional relationship, when
The absolute position for being described object changes, then relative positional relationship may change；
Secondly: the utility model discloses in embodiment attached drawing, relates only to the structure being related to the embodiment of the present disclosure,
His structure, which can refer to, to be commonly designed, and under not conflict situations, the utility model the same embodiment and different embodiments can be mutual
Combination；
Last: the above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, all
Within the spirit and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in practical
Within novel protection scope.
Claims (6)
1. a kind of half-bridge module welding structure, including substrate (1), it is characterised in that: substrate (1) quadrangle is equipped with fixed station
(2), top shell (3) are equipped at the top of the substrate (1), top shell (3) quadrangle is equipped with limiting slot (4), in the middle part of the top shell (3)
Equipped with IGBT module component (5), circuit board (6) are equipped at the top of the substrate (1), the circuit board (6) and IGBT module component
(5) conductive sheet (7) are equipped between, conductive sheet (7) side is equipped with fixed frame (8), and circuit board (6) side is equipped with anode
Wiring pole (9), circuit board (6) other side are equipped with negative terminal pole (10), and fixed station (2) the bottom end outer wall, which is equipped with, to be fixed
Slot (11), limiting slot (4) bottom end are equipped with fixed raised line (12).
2. a kind of half-bridge module welding structure according to claim 1, it is characterised in that: the conductive sheet (7), fixed frame
(8) it is made with positive terminal pole (9) of copper material, the conductive sheet (7) and fixed frame (8) length are adapted.
3. a kind of half-bridge module welding structure according to claim 1, it is characterised in that: positive terminal pole (9) bottom
End is equipped with power connecting sheet, and conductor wire is equipped between the power connecting sheet and circuit board (6).
4. a kind of half-bridge module welding structure according to claim 3, it is characterised in that: the circuit board (6) and fixation
Between frame (8) and conductive sheet (7), positive terminal pole (9) ultrasonic welding is carried out by ultrasonic drilling machine between bottom end and power connecting sheet.
5. a kind of half-bridge module welding structure according to claim 1, it is characterised in that: set inside the fixed station (2)
There is fixed hole, the limiting slot (4) is adapted with fixed station (2), the fixed raised line (12) and fixing groove (11) snapping.
6. a kind of half-bridge module welding structure according to claim 1, it is characterised in that: the IGBT module component (5)
Including metal-oxide half field effect transistor and PNP bipolar junction transistor, the metal-oxide half field effect transistor is set as input pole, described
PNP bipolar junction transistor is set as output stage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920111832.9U CN209627822U (en) | 2019-01-23 | 2019-01-23 | A kind of half-bridge module welding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920111832.9U CN209627822U (en) | 2019-01-23 | 2019-01-23 | A kind of half-bridge module welding structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209627822U true CN209627822U (en) | 2019-11-12 |
Family
ID=68451084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920111832.9U Active CN209627822U (en) | 2019-01-23 | 2019-01-23 | A kind of half-bridge module welding structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209627822U (en) |
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2019
- 2019-01-23 CN CN201920111832.9U patent/CN209627822U/en active Active
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