CN210167263U - Modularized water-cooling film capacitor and motor controller - Google Patents
Modularized water-cooling film capacitor and motor controller Download PDFInfo
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- CN210167263U CN210167263U CN201921244931.0U CN201921244931U CN210167263U CN 210167263 U CN210167263 U CN 210167263U CN 201921244931 U CN201921244931 U CN 201921244931U CN 210167263 U CN210167263 U CN 210167263U
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Abstract
The utility model relates to the technical field of water-cooling film capacitors for motor controllers, in particular to a modularized water-cooling film capacitor and a motor controller; the capacitor comprises a capacitor shell, wherein a plurality of capacitor bodies arranged side by side at intervals are arranged in the capacitor shell; a plurality of cooling water pipes and a plurality of IGBT connecting columns are further arranged in the capacitor shell; the inner wall of the capacitor shell, the capacitor bodies, the cooling water pipes and the IGBT connecting columns are fixed into a whole through packaging and filling rubber blocks. The utility model discloses a modularization water-cooling film electric capacity and machine controller adopts aluminum alloy die-casting casing, self structure condenser tube, and the collocation IGBT module is applied to machine controller for the electric automobile, has improved film electric capacity's operational environment, has promoted the high temperature resistant grade of electric capacity, makes the electric capacity casing become the only carrier of whole modularization machine controller simultaneously, has simplified the complete machine design, has reduced the design manufacturing cost.
Description
Technical Field
The utility model relates to a water-cooling film capacitor technical field for the machine controller especially relates to a modularization water-cooling film capacitor and machine controller.
Background
The temperature resistance of the film capacitor can only reach 105 ℃ at present, the temperature resistance of other parts of the motor controller can reach 125 ℃, and the film capacitor is the shortest plate for improving the upper limit of the power of the motor controller, so that the technology exploration which has to be done at present is to provide a good cooling environment for the film capacitor.
Chinese patent CN2018206307163 discloses a film capacitor mounting and heat dissipating structure, which comprises a controller main housing, wherein a film capacitor mounting groove is arranged at the bottom of the controller main housing, a film capacitor is placed in the film capacitor mounting groove, a water cooling plate fixedly connected with the controller main housing is arranged at the top of the film capacitor, and the water cooling plate compresses the film capacitor. And a heat-conducting silica gel pad is arranged between the water cooling plate and the thin-film capacitor. The bottom and the side of the thin film capacitor are fixed with the thin film capacitor mounting groove through pouring sealant. According to the scheme, the thin-film capacitor is directly encapsulated into the controller main shell through the encapsulation adhesive, meanwhile, the capacitor is further compressed by the top water-cooling plate to guarantee the fixing reliability, and the heat-conducting silica gel pad is arranged between the thin-film capacitor and the water-cooling plate to improve the heat conductivity coefficient; meanwhile, gaps between the rest surfaces of the capacitor and the shell are filled with pouring sealant, the heat dissipation efficiency of the whole scheme is higher, the heat dissipation effect of the capacitor is better, the working temperature of the thin-film capacitor can be effectively reduced, and the service life of the capacitor is prolonged.
However, the arrangement of the above structure in the overall structure is inconvenient for the installation of components of the motor controller, the installation speed is slow, and the working temperature of the thin film capacitor cannot be monitored; meanwhile, due to the defects of structural arrangement, the overall heat dissipation efficiency is not ideal. Therefore, in order to solve the above problems, it is urgently needed to invent a new modular water-cooling film capacitor and a motor controller.
Disclosure of Invention
The utility model aims to provide a: the modularized water-cooling film capacitor and the motor controller are simplified in structure, good in heat dissipation effect and capable of being installed quickly.
The utility model provides a following scheme:
a modularized water-cooling film capacitor comprises a capacitor shell, wherein a plurality of capacitor bodies which are arranged side by side at intervals are arranged in the capacitor shell; a plurality of cooling water pipes and a plurality of IGBT connecting columns are further arranged in the capacitor shell; the inner wall of the capacitor shell, each capacitor body, each cooling water pipe and each IGBT connecting column are fixed into a whole through a packaging and filling rubber block; the upper end pipe orifice of the cooling water pipe extends out of the packaging filling rubber block and is used for communicating a cooling water channel arranged on the IGBT module, and the lower end pipe orifice of the cooling water pipe is correspondingly communicated with a water through hole arranged at the bottom of the capacitor shell; a rubber sealing ring is arranged at the joint for ensuring the reliability of water-cooling sealing, and the upper end of the IGBT connecting column extends out of the packaging filling rubber block;
the input terminal of the capacitor body is connected with a direct-current copper bar, and the direct-current copper bar extends out of the packaging filling rubber block; the output terminal of the capacitor body extends out of the packaging filling rubber block, and the extending part is bent so as to be connected with the IGBT module.
Preferably, the capacitor shell is internally provided with an insulating terminal base, and an anti-rotation embedded nut used for supporting and insulating the switching of the three-phase alternating-current copper bar and the direct-current copper bar is embedded in the insulating terminal base.
Preferably, the upper end of the IGBT connecting column is provided with an IGBT fixing hole.
Preferably, the cooling water pipe is also provided with the IGBT fixing hole.
Preferably, the cooling water pipe is disposed in a height direction of the capacitor case.
Preferably, a temperature sensor is packaged on the capacitor body.
Preferably, the output terminal of electric capacity body includes riser and diaphragm, the one end of riser with this body coupling of electric capacity, the other end of riser stretches out encapsulation packing is glued the piece with the one end of diaphragm is connected, the other end of diaphragm is the cantilever setting, be equipped with the screw hole that is used for being connected with the IGBT module on the diaphragm.
Preferably, the insulating terminal block is made of any one of plastic and rubber.
Preferably, the capacitor shell is integrally cast and molded; the capacitor shell is made of high-voltage aluminum alloy.
Further, the utility model also provides a machine controller, include modularization water-cooling film capacitor.
The utility model discloses the beneficial effect who produces:
the utility model discloses a modular water-cooling film capacitor and a motor controller, which comprises a capacitor shell, wherein a plurality of capacitor bodies are arranged in the capacitor shell at intervals side by side; a plurality of cooling water pipes and a plurality of IGBT connecting columns are further arranged in the capacitor shell; the inner wall of the capacitor shell, each capacitor body, each cooling water pipe and each IGBT connecting column are fixed into a whole through a packaging and filling rubber block; the upper end pipe orifice of the cooling water pipe extends out of the packaging filling rubber block and is used for communicating a cooling water channel arranged on the IGBT module, and the lower end pipe orifice of the cooling water pipe is correspondingly communicated with a water through hole arranged at the bottom of the capacitor shell; the upper end of the IGBT connecting column extends out of the packaging filling rubber block; the input terminal of the capacitor body is connected with a direct-current copper bar, and the direct-current copper bar extends out of the packaging filling rubber block; the output terminal of the capacitor body extends out of the packaging filling rubber block, and the extending part is bent so as to be connected with the IGBT module conveniently; an aluminum alloy die-casting shell is adopted, a cooling water pipe is constructed by the aluminum alloy die-casting shell, and the aluminum alloy die-casting shell is matched with a Fuji M653IGBT module to be applied to a motor controller product for an electric automobile; the water cooling channel is arranged around the capacitor body, so that the capacitor body realizes real water cooling, the working environment of the film capacitor is greatly improved, the high temperature resistant grade of the capacitor is improved, and powerful hardware support is provided for improving the upper limit of the power of the whole motor controller; a temperature sensor is arranged in the capacitor, and an over-temperature protection mechanism of the capacitor is arranged, so that the service life of the thin film capacitor is prolonged; meanwhile, the capacitor shell is provided with a threaded hole and a connecting water channel which are connected with the Fuji M653IGBT module, so that the capacitor shell becomes the only carrier of the whole modularized motor controller, the whole machine design is simplified, and the design and manufacturing cost is reduced.
Drawings
Fig. 1 is a schematic structural diagram (perspective view) of the modular water-cooled thin film capacitor of the present invention.
Fig. 2 is a schematic structural diagram (front view) of the modular water-cooled thin film capacitor of the present invention.
Fig. 3 is a schematic structural diagram (cross-sectional view) of the modular water-cooled thin film capacitor of the present invention.
Fig. 4 is a schematic structural diagram (perspective view) of the motor controller according to the present invention.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 3, a modular water-cooled film capacitor includes a capacitor case 1, in which a plurality of capacitor bodies are installed in parallel at intervals; a plurality of cooling water pipes 2 and a plurality of IGBT connecting columns 3 are further arranged in the capacitor shell; the inner wall of the capacitor shell, each capacitor body, each cooling water pipe and each IGBT connecting column are fixed into a whole through a packaging and filling rubber block 4; the upper end pipe orifice of the cooling water pipe extends out of the packaging filling rubber block and is used for communicating a cooling water channel arranged on the IGBT module, and the lower end pipe orifice of the cooling water pipe is correspondingly communicated with a water through port 5 arranged at the bottom of the capacitor shell; the upper end of the IGBT connecting column extends out of the packaging filling rubber block; the input terminal of the capacitor body is connected with a direct-current copper bar 7, and the direct-current copper bar extends out of the packaging filling rubber block; the output terminal 8 of the capacitor body extends out of the packaging filling rubber block, and the extending part is bent so as to be connected with the IGBT module. The capacitor is characterized in that an insulating terminal seat 9 is arranged in the capacitor shell, and an anti-rotation embedded nut 11 used for supporting and insulating protection is embedded in the insulating terminal seat and used for the three-phase alternating-current copper bar 10 and the switching of the direct-current copper bar. And an IGBT fixing hole 12 is formed in the upper end of the IGBT connecting column. The cooling water pipe is also provided with the IGBT fixing hole. The cooling water pipe is arranged in the height direction of the capacitor shell. The capacitor body is packaged with a temperature sensor, and specific positions of the capacitor body and the temperature sensor in the packaging filling rubber block are not shown in the figure and are known technology, so that the capacitor body and the temperature sensor are not mentioned again. The output terminal of capacitor body includes riser 13 and diaphragm 14, the one end of riser with this body coupling of capacitor, the other end of riser stretches out the encapsulation packing is glued the piece with the one end of diaphragm is connected, the other end of diaphragm is the cantilever setting, be equipped with the screw hole 15 that is used for being connected with the IGBT module on the diaphragm. The insulating terminal seat is made of plastic. The capacitor shell is integrally cast and molded; the capacitor shell is made of high-voltage aluminum alloy.
Referring to fig. 4, the present embodiment further provides a motor controller, which includes the modular water-cooled thin film capacitor, and an IGBT module 17, a drive board 16 and a control board 6 are sequentially installed above the capacitor housing.
The modular water-cooling film capacitor and the motor controller in the embodiment comprise a capacitor shell, wherein a plurality of capacitor bodies which are arranged side by side at intervals are arranged in the capacitor shell; a plurality of cooling water pipes and a plurality of IGBT connecting columns are further arranged in the capacitor shell; the inner wall of the capacitor shell, each capacitor body, each cooling water pipe and each IGBT connecting column are fixed into a whole through a packaging and filling rubber block; the upper end pipe orifice of the cooling water pipe extends out of the packaging filling rubber block and is used for communicating a cooling water channel arranged on the IGBT module, and the lower end pipe orifice of the cooling water pipe is correspondingly communicated with a water through hole arranged at the bottom of the capacitor shell; the upper end of the IGBT connecting column extends out of the packaging filling rubber block; the input terminal of the capacitor body is connected with a direct-current copper bar, and the direct-current copper bar extends out of the packaging filling rubber block; the output terminal of the capacitor body extends out of the packaging filling rubber block, and the extending part is bent so as to be connected with the IGBT module conveniently; an aluminum alloy die-casting shell is adopted, a cooling water pipe is constructed by the aluminum alloy die-casting shell, and the aluminum alloy die-casting shell is matched with a Fuji M653IGBT module to be applied to a motor controller product for an electric automobile; the water cooling channel is arranged around the capacitor body, so that the capacitor body realizes real water cooling, the working environment of the film capacitor is greatly improved, the high temperature resistant grade of the capacitor is improved, and powerful hardware support is provided for improving the upper limit of the power of the whole motor controller; a temperature sensor is arranged in the capacitor, and an over-temperature protection mechanism of the capacitor is arranged, so that the service life of the thin film capacitor is prolonged; meanwhile, the capacitor shell is provided with a threaded hole and a connecting water channel which are connected with the Fuji M653IGBT module, so that the capacitor shell becomes the only carrier of the whole modularized motor controller, the whole machine design is simplified, and the design and manufacturing cost is reduced.
The modular water-cooling film capacitor and the motor controller in the embodiment adopt an aluminum alloy die-casting shell, a water-cooling channel is constructed by the modular water-cooling film capacitor and the motor controller, and the modular water-cooling film capacitor and the motor controller are matched with a Fuji M653IGBT module and applied to motor controller products for electric automobiles. The water cooling channel is arranged around the capacitor, so that the capacitor realizes real water cooling, the working environment of the film capacitor is greatly improved, the high temperature resistant grade of the capacitor is improved, and powerful hardware support is provided for improving the upper limit of the power of the whole motor controller. A temperature sensor is arranged in the capacitor, and an over-temperature protection mechanism of the capacitor is arranged, so that the service life of the thin film capacitor is prolonged. The utility model discloses power density to improving driving motor controller product has carried out the courage and profitable positive attempt, provides the thinking of novelty to the further attempt of breaing the trade barrier and strengthening relevant spare part system. The scheme in the embodiment is suitable for being applied to the design of an all-in-one electronic control unit, and the motor controller applying the capacitor can be integrated, matched and applied in a module form.
In the embodiment, the controller shell is designed and produced by adopting a high-pressure aluminum alloy casting process, the modularized water-cooling film capacitor and the motor controller are light in weight, compact in structure and complete in function, a water channel is designed at the bottom of the shell and is matched with the Fuji M653IGBT module, the film capacitor is directly injected with glue and packaged (with good heat conductivity) in the capacitor shell, the space utilization rate of the shell is improved, and meanwhile, the capacitor is positioned around the water channel, so that the film capacitor is really water-cooled.
In the modular water-cooled film capacitor and the motor controller in the embodiment, a plastic terminal seat is designed on one side of the capacitor, five anti-rotation embedded nuts are embedded in the terminal seat, and support and insulation protection are provided for the switching of a three-phase alternating current copper bar and a direct current copper bar; the water channel is analyzed and optimally designed through CAE, the structure is simple, the processing is easy, the water resistance is small, the pressure difference is low, and the heat exchange efficiency is high; the temperature sensor is arranged in the capacitor shell, so that the capacitor is always in a good working temperature range, and the whole machine reaches a higher peak power upper limit at the temperature of 105 ℃.
In the modular water-cooling film capacitor and the motor controller in the embodiment, in order to be conveniently connected with the IGBT module, the output terminal of the capacitor is designed into a bending form, so that the number of the switching pieces is reduced, and the current contact heating loss is reduced; the capacitor is provided with a threaded hole and a connecting water channel which are connected with the Fuji M653IGBT module 17, so that the capacitor shell becomes the only carrier of the whole modularized motor controller, the whole machine design is simplified, and the design and manufacturing cost is reduced.
The modular water-cooling film capacitor and the motor controller in the embodiment have compact structure and high space utilization rate; the water-cooling heat exchange area is large, and the system heat dissipation efficiency is high; the system has high power density and low cost, and is suitable for new energy passenger vehicles, new energy commercial vehicles and other vehicle types.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A modular water-cooling film capacitor is characterized in that: the capacitor comprises a capacitor shell, wherein a plurality of capacitor bodies arranged side by side at intervals are arranged in the capacitor shell; a plurality of cooling water pipes and a plurality of IGBT connecting columns are further arranged in the capacitor shell; the inner wall of the capacitor shell, each capacitor body, each cooling water pipe and each IGBT connecting column are fixed into a whole through a packaging and filling rubber block; the upper end pipe orifice of the cooling water pipe extends out of the packaging filling rubber block and is used for communicating a cooling water channel arranged on the IGBT module, and the lower end pipe orifice of the cooling water pipe is correspondingly communicated with a water through hole arranged at the bottom of the capacitor shell; the upper end of the IGBT connecting column extends out of the packaging filling rubber block;
the input terminal of the capacitor body is connected with a direct-current copper bar, and the direct-current copper bar extends out of the packaging filling rubber block; the output terminal of the capacitor body extends out of the packaging filling rubber block, and the extending part is bent so as to be connected with the IGBT module.
2. The modular water-cooled membrane capacitor of claim 1, wherein: the capacitor is characterized in that an insulating terminal seat is arranged in the capacitor shell, and an anti-rotation embedded nut used for supporting and insulating protection is embedded in the insulating terminal seat and used for switching of the three-phase alternating-current copper bar and the direct-current copper bar.
3. The modular water-cooled membrane capacitor of claim 2, wherein: and an IGBT fixing hole is formed in the upper end of the IGBT connecting column.
4. The modular water-cooled membrane capacitor of claim 3, wherein: the cooling water pipe is also provided with the IGBT fixing hole.
5. The modular water-cooled membrane capacitor of claim 4, wherein: the cooling water pipe is arranged in the height direction of the capacitor shell.
6. The modular water-cooled membrane capacitor of claim 5, wherein: and a temperature sensor is packaged on the capacitor body.
7. The modular water-cooled membrane capacitor of claim 6, wherein: the output terminal of capacitor body includes riser and diaphragm, the one end of riser with this body coupling of capacitor, the other end of riser stretches out encapsulation packing rubber block with the one end of diaphragm is connected, the other end of diaphragm is the cantilever setting, be equipped with the screw hole that is used for being connected with the IGBT module on the diaphragm.
8. The modular water-cooled membrane capacitor of claim 7, wherein: the insulating terminal seat is made of any one of plastic and rubber.
9. The modular water-cooled membrane capacitor of claim 8, wherein: the capacitor shell is integrally cast and molded; the capacitor shell is made of high-voltage aluminum alloy.
10. A motor controller characterized by: comprising a modular water-cooled film capacitor according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921244931.0U CN210167263U (en) | 2019-08-02 | 2019-08-02 | Modularized water-cooling film capacitor and motor controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921244931.0U CN210167263U (en) | 2019-08-02 | 2019-08-02 | Modularized water-cooling film capacitor and motor controller |
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| Publication Number | Publication Date |
|---|---|
| CN210167263U true CN210167263U (en) | 2020-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921244931.0U Expired - Fee Related CN210167263U (en) | 2019-08-02 | 2019-08-02 | Modularized water-cooling film capacitor and motor controller |
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| CN (1) | CN210167263U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110289169A (en) * | 2019-08-02 | 2019-09-27 | 北斗航天汽车（北京）有限公司 | Modularization water cooling thin-film capacitor and electric machine controller |
-
2019
- 2019-08-02 CN CN201921244931.0U patent/CN210167263U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110289169A (en) * | 2019-08-02 | 2019-09-27 | 北斗航天汽车（北京）有限公司 | Modularization water cooling thin-film capacitor and electric machine controller |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200320 Termination date: 20210802 |