CN212969412U - Power module - Google Patents
Power module Download PDFInfo
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- CN212969412U CN212969412U CN202021104671.XU CN202021104671U CN212969412U CN 212969412 U CN212969412 U CN 212969412U CN 202021104671 U CN202021104671 U CN 202021104671U CN 212969412 U CN212969412 U CN 212969412U
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Abstract
The utility model discloses a power module, including power board and generating line electric capacity board, power board and generating line electric capacity board are female to be connected through two at least power bars and are realized the power conduction. Among this power module, power board and bus capacitor plate are female to be connected through two at least power and realize power conduction, compare the copper post among the prior art, and the female flexibility of warping of arranging of power is higher, can be female not simultaneously through self warp realization each power of arranging with power board and bus capacitor plate reliably, well be connected through a plurality of power female sizes, avoid contact resistance too big, prevent serious heating, improve power module's reliability.
Description
Technical Field
The utility model relates to a mechanical industry technical field, more specifically say, relate to a power module.
Background
Referring to fig. 1, the conventional power module includes a power board 2 and a bus capacitor board 1, and the power board 2 and the bus capacitor board 1 are connected by at least 2 copper pillars 3 to achieve power conduction. However, due to the machining precision and the dimensional tolerance, the height dimensions of the plurality of copper pillars 3 cannot be completely consistent, so that when each copper pillar 3 is installed between the power board 2 and the bus capacitor board 1, one or more copper pillars 3 are in poor contact with the bus capacitor board 1, the contact resistance is too large, heat is generated seriously, and the whole power module is damaged.
In addition, when the conventional power module is assembled, firstly, the copper columns 3 are fastened on the power plate 2, then, the power plate 2 with the assembled copper columns 3 is fastened on the radiator 4, and then, the bus capacitor plate 1 and the copper columns 3 are fastened in sequence, so that it is often found that holes in the bus capacitor plate 1 cannot be aligned with mounting holes in the copper columns 3 at the same time, brute force adjustment is needed, hidden dangers are generated on the power plate 2 at the bottom, and product failure is easily caused.
In summary, how to connect the connecting member between the power board and the bus capacitor board in the power module well with the power board and the bus capacitor board, so as to avoid the overlarge contact resistance, prevent serious heat generation, and improve the reliability of the power module is a problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a power module, including power board and generating line electric capacity board, power board and generating line electric capacity board are through female the connection realization power conduction of arranging of two at least power, compare in the copper post among the prior art, the female deformation flexibility of arranging of power is higher, can be at the female size of arranging of a plurality of power not simultaneously through self warp realize that each power is female to be arranged respectively with power board and generating line electric capacity board reliably, well to be connected, avoid contact resistance too big, prevent seriously generating heat, improve power module's reliability.
In order to achieve the above object, the utility model provides a following technical scheme:
a power module comprises a power board and a bus capacitor board, wherein the power board and the bus capacitor board are connected through at least two power busbars to achieve power conduction.
Preferably, in the power module, the bus capacitor plate is provided with a first power terminal; a second power terminal is arranged on the power board; and two ends of the power busbar are fixedly connected with the first power terminal and the second power terminal respectively.
Preferably, in the power module, the first power terminal is connected with the power busbar through a screw, and the first power terminal is provided with a first mounting hole matched with the screw; and the axial direction of the screw is parallel to the plate surface of the bus capacitor plate after the screw is assembled.
Preferably, in the power module, the second power terminal is connected with the power busbar through a screw, and the second power terminal is provided with a second mounting hole matched with the screw; and the axial direction of the screw is parallel to the plate surface of the power plate after the screw is assembled.
Preferably, in the power module, the first power terminal extends out of a plate surface of the bus capacitor plate, and the second power terminal extends out of the plate surface of the power plate; the first power terminal is located on a first side of the bus capacitor plate and the second power terminal is located on a first side of the power plate.
Preferably, in the power module, the first power terminals correspond to the power busbars one to one; the second power terminals correspond to the power busbars one to one.
Preferably, in the power module, the power bus bar is in flexible connection with at least one of the power board and the bus capacitor board.
Preferably, in the power module, the power board is mounted on a heat sink of the power module; the bus capacitor plate is assembled on the radiator.
Preferably, in the power module, the heat sink is provided with a support plate, the support plate is used for erecting a tray, and the bus capacitor plate is fixed on the tray.
Preferably, in the power module, the power board is first mounted on the heat sink, then the support plates on two sides are respectively mounted on the heat sink, and the bus capacitor board is mounted on the tray; then mounting the tray on the support plate, but not fastened; and the two ends of the power busbar are respectively arranged on the power board and the bus capacitor board, and finally the tray is fastened on the supporting board, so that the power module is formed.
The utility model provides a power module, including power board and generating line electric capacity board, power board and generating line electric capacity board are female to be connected through two at least power bars and are realized the power conduction.
The utility model provides an among the power module, power board and generating line electric capacity board are female arranging through two at least powers and are connected and realize power conduction, compare the copper post in prior art, and the female deformation flexibility of arranging of power is higher, can arrange the size of arranging through self when a plurality of powers and realize that each power is female to be arranged respectively with power board and generating line electric capacity board reliably, well to be connected, avoid contact resistance too big, prevent to generate heat seriously, improve power module's reliability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a power module according to the prior art;
fig. 2 is a schematic structural diagram of a power module according to an embodiment of the present invention when a power bus bar is not assembled;
fig. 3 is a schematic structural diagram of a power module according to an embodiment of the present invention;
fig. 4 is an assembly view of the power bus bar, the first power terminal and the second power terminal provided by the embodiment of the present invention;
fig. 5 is a schematic structural diagram of a power bus bar provided in an embodiment of the present invention;
wherein, in fig. 2-5:
a bus capacitor plate 1; a first power terminal 11; a power board 2; a second power terminal 21; a tray 3; a support plate 4; a heat sink 5; and a power bus bar 6.
Detailed Description
The embodiment of the utility model discloses power module, including power board and generating line electric capacity board, power board and generating line electric capacity board are female to be connected through two at least power and are realized the power conduction, compare in the copper post among the prior art, the female flexibility of deformation of arranging of power is higher, can be female not simultaneously through self deformation realization each power of arranging of a plurality of power arrange the size reliably, well be connected with power board and generating line electric capacity board respectively, avoid contact resistance too big, prevent seriously generating heat, improve power module's reliability.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 2-5, an embodiment of the present invention provides a power module, which includes a power board 2 and a bus capacitor board 1, wherein the power board 2 and the bus capacitor board 1 are connected by at least two power busbars 6 to implement power conduction.
The embodiment of the utility model provides an among the power module, power board 2 and generating line electric capacity board 1 are female arranging 6 through at least two powers and are connected and realize the power conduction, compare the copper post in prior art, the female flexibility of deformation of arranging 6 of power is higher, can arrange 6 sizes of a plurality of powers and warp through self and realize that each power is female arranges 6 and reliably, well be connected with power board 2 and generating line electric capacity board 1 respectively not simultaneously, avoid contact resistance too big, prevent seriously generating heat, improve power module's reliability.
Specifically, in the power module provided in the above embodiment, the bus capacitor plate 1 is provided with the first power terminal 11; the power board 2 is provided with a second power terminal 21; two ends of the power bus bar 6 are respectively fixedly connected with the first power terminal 11 and the second power terminal 21. In this embodiment, set up power terminal on bus capacitor plate 1 and the power board 2 respectively, make things convenient for the female 6 installations of arranging of power, also improve security in the assembling process, avoid installed part or mounting tool to damage bus capacitor plate 1, power board 2.
Specifically, in the power module, a first power terminal 11 and a power bus bar 6 are connected by a screw, the first power terminal 11 is provided with a first mounting hole matched with the screw, and the screw is axially parallel to the plate surface of the bus capacitor plate 1 after being assembled; the second power terminal 21 is connected with the power busbar 6 through a screw, the second power terminal 21 is provided with a second installation matched with the screw, and the axial direction of the screw is parallel to the plate surface of the power plate 2 after the screw is assembled.
In this embodiment, the screws at the two ends of the power busbar 6 are respectively parallel to the surfaces of the bus capacitor board 1 and the power board 2 after being assembled, which is not only convenient for installation, but also convenient for adjusting the installation position, and is beneficial to avoiding the misalignment of the holes.
In the power module, the first power terminal 11 extends out of the plate surface of the bus capacitor plate 1, and the second power terminal 21 extends out of the plate surface of the power plate 2; the first power terminal 11 is located on a first side of the bus capacitor plate 1 (i.e. the side of the bus capacitor plate 1 facing away from the heat sink 5 in the power module), and the second power terminal 21 is located on a first side of the power plate 2 (i.e. the side of the power plate 2 facing away from the heat sink 5 in the power module).
The power busbar 6 can also be set to be in a bent state, specifically, the power busbar is in an L shape as shown in fig. 4, correspondingly, the first power terminal 11 is parallel to the plate surface of the bus capacitor plate 1, and the second power terminal 21 extends out of the plate surface of the power plate 2 towards the bus capacitor plate 1 so as to be matched with the L-shaped power busbar 6 in installation.
In addition, the two ends of the power bus bar 6 are respectively provided with an assembly hole matched with a screw, and the assembly holes at the two ends can be round holes, preferably waist-shaped holes, as shown in fig. 5, so as to adjust the installation position of the power bus bar 6. The waist-shaped holes at one end of the power bus bar 6 may be arranged in a transverse direction (i.e., a direction perpendicular to an extending direction of the power bus bar 6) or a longitudinal direction (i.e., an extending direction of the power bus bar 6), and the waist-shaped holes at the other end may also be arranged in a transverse direction or a longitudinal direction, which is not limited in this embodiment.
As in the power module, the first power terminals 11 correspond to the power busbars 6 one to one (that is, the number of the first power terminals 11 is the same as that of the power busbars 6, and each first power terminal 11 is connected to a different power busbar 6); the second power terminals 21 correspond to the power busbars 6 one to one (that is, the number of the second power terminals 21 is the same as that of the power busbars 6, and each first power terminal 11 is connected to a different power busbar 6 respectively).
Besides the manner of screw connection, the power busbar 6 can be flexibly connected with at least one of the power board 2 and the bus capacitor board 1, so as to better solve the problem of product failure caused by poor contact. In addition, if the positive and negative electrodes of the two adjacent power busbars 6 are arranged to be laminated busbars, parasitic inductance is reduced.
Specifically, in the power module, the power board 2 is mounted on the heat sink 5 of the power module; the bus capacitor plate 1 is mounted on the heat sink 5. A supporting plate 4 is installed on the radiator 5, the supporting plate 4 is used for erecting the tray 3, and the bus capacitor plate 1 is fixed on the tray 3.
The power module is characterized in that a power plate 2 is arranged on a radiator 5, supporting plates 4 on two sides are arranged on the radiator 5 respectively, and a bus capacitor plate 1 is arranged on a tray 3; the tray 3 is then mounted on the support plate 4, but not fastened; the two ends of the power busbar 6 are respectively arranged on the power board 2 and the bus capacitor board 1 (namely, the two ends of each power busbar 6 are respectively fixed on the corresponding first power terminal 11 and second power terminal 21), and finally the tray 3 is fastened on the support plate 4, so that the power module is formed.
The power bus bar 6 for the power module that this embodiment provided replaces the copper post, and the fastening mode is installed power board 2 and bus capacitor board 1 earlier by preinstall copper post at assembly power board 2 and bus capacitor board 1 earlier by first, installs power bus bar 6 again, and the tray 3 is fastened at last, can not produce the uneven problem of pore pair, avoids using brute force because of the adjustment counterpoint in the assembling process, prevents that power board 2, bus capacitor board 1 from impaired, convenient maintenance simultaneously.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. The power module is characterized by comprising a power board and a bus capacitor board, wherein the power board and the bus capacitor board are connected through at least two power busbars to realize power conduction.
2. The power module of claim 1, wherein a first power terminal is provided on said bus capacitor plate; a second power terminal is arranged on the power board; and two ends of the power busbar are fixedly connected with the first power terminal and the second power terminal respectively.
3. The power module according to claim 2, wherein the first power terminal and the power bus bar are connected through a screw, and the first power terminal is provided with a first mounting hole matched with the screw; and the axial direction of the screw is parallel to the plate surface of the bus capacitor plate after the screw is assembled.
4. The power module according to claim 2, wherein the second power terminal and the power bus bar are connected through a screw, and the second power terminal is provided with a second mounting hole matched with the screw; and the axial direction of the screw is parallel to the plate surface of the power plate after the screw is assembled.
5. The power module of any of claims 2-4, wherein the first power terminal extends out of a plane of the bus capacitor plate and the second power terminal extends out of a plane of the power plate; the first power terminal is located on a first side of the bus capacitor plate and the second power terminal is located on a first side of the power plate.
6. The power module of claim 2, wherein the first power terminals are in one-to-one correspondence with the power busbars; the second power terminals correspond to the power busbars one to one.
7. The power module of claim 1, wherein the power bus bar is in flexible connection with at least one of the power board and the bus capacitor board.
8. The power module of claim 1, wherein the power board is mounted on a heat sink of the power module; the bus capacitor plate is assembled on the radiator.
9. The power module of claim 8, wherein a support plate is mounted to the heat sink, the support plate being configured to mount a tray to which the bus capacitor plate is secured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021104671.XU CN212969412U (en) | 2020-06-15 | 2020-06-15 | Power module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021104671.XU CN212969412U (en) | 2020-06-15 | 2020-06-15 | Power module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212969412U true CN212969412U (en) | 2021-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021104671.XU Active CN212969412U (en) | 2020-06-15 | 2020-06-15 | Power module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212969412U (en) |
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2020
- 2020-06-15 CN CN202021104671.XU patent/CN212969412U/en active Active
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