CN204103782U - The positive and negative busbar laminated construction of frequency converter - Google Patents

The positive and negative busbar laminated construction of frequency converter Download PDF

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Publication number
CN204103782U
CN204103782U CN201420570135.7U CN201420570135U CN204103782U CN 204103782 U CN204103782 U CN 204103782U CN 201420570135 U CN201420570135 U CN 201420570135U CN 204103782 U CN204103782 U CN 204103782U
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busbar
ground floor
intergrade
sinking
frequency converter
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CN201420570135.7U
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Chinese (zh)
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汤桂衡
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Shenzhen Inovance Technology Co Ltd
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Shenzhen Inovance Technology Co Ltd
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Abstract

The utility model provides the positive and negative busbar laminated construction of a kind of frequency converter, described frequency converter comprises multiple bus capacitor, and the electrode terminal of all bus capacitors is positioned at same plane, this laminated construction comprises intergrade busbar, ground floor busbar, second layer busbar, insulating trip and insulating barrier, wherein: described intergrade busbar and ground floor busbar are installed in the same plane above bus capacitor; Described intergrade busbar has sinking portion, and ground floor busbar has the bridge be connected across above described sinking portion; The sinking size in described sinking portion is greater than the thickness of the bridge of ground floor busbar, and has insulating trip between this sinking portion and bridge; Described insulating barrier and second layer busbar are superimposed to be successively arranged on above intergrade busbar and ground floor busbar.The utility model is superimposed by the local of intergrade busbar and ground floor busbar, can realize intergrade busbar and ground floor busbar is arranged in same plane, thus the thickness of reduction stack bus bar.

Description

The positive and negative busbar laminated construction of frequency converter
Technical field
The utility model relates to frequency converter field, more particularly, relates to the positive and negative busbar laminated construction of a kind of frequency converter.
Background technology
Stack bus bar, also known as composite bus bar, is that a kind of multi-layer compound structure connects row.As compared to traditional, heavy, time-consuming and troublesome wiring method, use composite bus bar can provide modern, be easy to design and install fast and the distribution system of clear in structure.
In current frequency converter industry, when the arrangement columns of bus capacitor (comprises three groups) more than three groups, the lamination of positive and negative busbar generally adopts three-decker or more multi-layered laminated construction.As shown in Figure 1,12 bus capacitors 11 line up four lines three row, ground floor busbar 12, first insulating barrier 13, intergrade busbar 14, second insulating barrier 15, upper strata busbar 16 are superimposed on the top of bus capacitor 11 successively, and corresponding with on the bus capacitor 11 respectively electrode of ground floor busbar 12, intergrade busbar 14 and upper strata busbar 16 is electrically connected.This traditional positive and negative busbar laminated construction advantage is: structural design is simple, and connection (series, parallel) clear route between bus capacitor is bright and clear.
But along with the change of the market demand, the inferior position of above-mentioned laminated bus bar structure also more and more displays:
(1) lamination is more, causes the busbar integral thickness size after lamination larger, is not suitable for the trend that frequency converter volume requirement is less.
(2) level of stack bus bar is more, the area of busbar can be caused to increase (non-lamination overlapping area), due to the insulating requirements between adjacent busbar, can cause the increase that insulating material uses simultaneously, thus cause the increase of stack bus bar cost.
Utility model content
The technical problems to be solved in the utility model is, the problem that, cost large for above-mentioned stack bus bar thickness raises with superimposed level, provides a kind of frequency converter positive and negative busbar laminated construction.
The technical scheme that the utility model solves the problems of the technologies described above is, there is provided a kind of frequency converter positive and negative busbar laminated construction, described frequency converter comprises the multiple bus capacitors being arranged in three row or more row, and the electrode terminal of all bus capacitors is positioned at same plane, this laminated construction comprises intergrade busbar, ground floor busbar, second layer busbar, insulating trip and insulating barrier, wherein: described intergrade busbar and ground floor busbar are installed in the same plane above bus capacitor; Described intergrade busbar has sinking portion, and ground floor busbar has the bridge be connected across above described sinking portion; The sinking size in described sinking portion is greater than the thickness of the bridge of ground floor busbar, and has insulating trip between this sinking portion and bridge; Described insulating barrier and second layer busbar are superimposed to be successively arranged on above intergrade busbar and ground floor busbar.
In the positive and negative busbar laminated construction of frequency converter described in the utility model, described intergrade busbar is electrically connected with an electrode terminal of each bus capacitor, and described ground floor busbar and second layer busbar are electrically connected with an electrode terminal of part bus capacitor respectively.
In the positive and negative busbar laminated construction of frequency converter described in the utility model, the two ends in the sinking portion of described intergrade busbar all have the contact be electrically connected with the electrode terminal of bus capacitor, and this sinking portion is positioned at the edge of intergrade busbar, the inner side in this sinking portion has opening; The two ends of the bridge on described ground floor busbar all have the contact be electrically connected with the electrode terminal of bus capacitor, and the both sides of this bridge have perforate and opening respectively.
In the positive and negative busbar laminated construction of frequency converter described in the utility model, described laminated construction also comprises and is superimposed on the second insulating barrier on second layer busbar and third layer busbar.
In the positive and negative busbar laminated construction of frequency converter described in the utility model, described ground floor busbar is positive pole busbar, described second layer busbar is cathode bus bar, or ground floor busbar be cathode bus bar, described second layer busbar is positive pole busbar.
In the positive and negative busbar laminated construction of frequency converter described in the utility model, described second layer busbar is provided with multiple perforate, and each perforate is corresponding with the electrode terminal on a bus capacitor.
The utility model also provides a kind of frequency converter positive and negative busbar laminated construction, described frequency converter comprises the multiple bus capacitors being arranged in three row or more row, and the electrode terminal of all bus capacitors is positioned at same plane, this laminated construction comprises intergrade busbar, ground floor busbar, second layer busbar, insulating trip and insulating barrier, wherein: described intergrade busbar and ground floor busbar are installed in the same plane above bus capacitor; Described ground floor busbar has sinking portion, and described intergrade busbar has the bridge be connected across above described sinking portion; The sinking size in described sinking portion is greater than the thickness of the bridge of intergrade busbar, and has insulating trip between this sinking portion and bridge; Described insulating barrier and second layer busbar are superimposed to be successively arranged on above intergrade busbar and ground floor busbar.
In the positive and negative busbar laminated construction of frequency converter described in the utility model, described intergrade busbar is electrically connected with an electrode terminal of each bus capacitor, and described ground floor busbar and second layer busbar are electrically connected with an electrode terminal of part bus capacitor respectively.
In the positive and negative busbar laminated construction of frequency converter described in the utility model, the two ends in the sinking portion of described ground floor busbar all have the contact be electrically connected with the electrode terminal of bus capacitor, and this sinking portion is positioned at the edge of ground floor busbar, the inner side in this sinking portion has opening; The two ends of the bridge on described intergrade busbar all have the contact be electrically connected with the electrode terminal of bus capacitor, and the both sides of this bridge have perforate and opening respectively.
Frequency converter of the present utility model positive and negative busbar laminated construction has following beneficial effect: superimposed by the local of intergrade busbar and ground floor busbar, intergrade busbar can be realized and ground floor busbar is arranged in same plane, thus reduce the thickness of stack bus bar, reduce the cost of stack bus bar simultaneously.
Accompanying drawing explanation
Fig. 1 is the decomposition texture schematic diagram of existing stack bus bar.
The decomposition texture schematic diagram of Fig. 2 the utility model frequency converter positive and negative busbar laminated construction embodiment.
Fig. 3 is the schematic diagram that intergrade busbar in Fig. 2 is installed to bus capacitor.
The schematic diagram that Fig. 4 is intergrade busbar in Fig. 2, ground floor busbar is installed to bus capacitor.
Fig. 5 is the schematic diagram after the superimposed installation of frequency converter positive and negative busbar laminated construction in Fig. 2.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 2-5, it is the schematic diagram of the utility model frequency converter positive and negative busbar laminated construction embodiment, it can be applicable to the frequency converter with multiple bus capacitor 21, and the bus capacitor 21 in this frequency converter is arranged in three row or more row, and the electrode terminal of all bus capacitors 21 is positioned at same plane.Laminated construction in the present embodiment comprises intergrade busbar 24, ground floor busbar 22, second layer busbar 26, insulating trip 23 and insulating barrier 25, wherein intergrade busbar 24 and ground floor busbar 22 are installed in the same plane above bus capacitor 21, and intergrade busbar 24 have the bridge 221 sinking portion 241, ground floor busbar 22 having and is connected across above sinking portion 241; The sinking size in above-mentioned sinking portion 241 is greater than the thickness of the bridge 221 of ground floor busbar 22, and has insulating trip 23 between this sinking portion 241 and bridge 221, isolates with the insulation realized between ground floor busbar 22 and intergrade busbar 24.Insulating barrier 25 and second layer busbar 26 are superimposed to be successively arranged on above intergrade busbar 24 and ground floor busbar 22.
The positive and negative busbar laminated construction of above-mentioned frequency converter, by the local iterative structure between the sinking portion 241 of intergrade busbar 24 and the bridge 221 of ground floor busbar 22, intergrade busbar 24 and ground floor busbar 22 can be made to be in same plane, thus double layer mother board structure can be realized without the need to the thickness increasing stack bus bar.
Above-mentioned intergrade busbar 24 and ground floor busbar 22 are directly installed on the top of the electrode terminal of bus capacitor 21, and intergrade busbar 24 is electrically connected with an electrode terminal of each bus capacitor 21.Ground floor busbar 22 and second layer busbar 26 are electrically connected with an electrode terminal of part bus capacitor 21 respectively, such as shown in Fig. 2-5, ground floor busbar 22 is electrically connected with an electrode terminal of six bus capacitors 21, and second layer busbar 26 is then electrically connected with an electrode terminal of remaining six bus capacitors 21.Above-mentioned ground floor busbar 22 is connected other elements, the wiring pin of such as power cell with second layer busbar 26 also has.
Especially, local iterative structure between intergrade busbar 24 and ground floor busbar 22 is by realizing with under type: on intergrade busbar 24, process sinking portion 241 with impact style, the two ends in this sinking portion 241 all have the contact be electrically connected with the electrode terminal of bus capacitor 21, this sinking portion 241 is positioned at the edge of intergrade busbar 24, and this opposite side of calling portion in the following text has opening; The two ends of the bridge 221 on ground floor busbar 22 all have the contact be electrically connected with the electrode terminal of bus capacitor 21, and the both sides of this bridge 221 have perforate and opening respectively.
The positive and negative busbar laminated construction of above-mentioned frequency converter, except can be applicable to the structure of three busbars, also can be applicable in the superimposed structure of more multi-layered busbar, such as, superimposedly on second layer busbar 26 can arrange the second insulating barrier and third layer busbar.
Above-mentioned ground floor busbar 22 can be positive pole busbar and second layer busbar 26 is cathode bus bar; Or ground floor busbar 22 is cathode bus bar, second layer busbar 26 is positive pole busbar.
With existing stack bus bar similarly, second layer busbar 26 is provided with multiple perforate, and each perforate is corresponding with the electrode terminal on a bus capacitor 21, by above-mentioned perforate, can avoid the wiring position of the electrode terminal of bus capacitor 21.
In addition, the local layer stack structure between ground floor busbar 22 and intermediate layer busbar 24 is also by realizing with under type: on ground floor busbar, arrange sinking portion, and intergrade busbar has the bridge be connected across above sinking portion; The sinking size in above-mentioned sinking portion is greater than the thickness of the bridge of intergrade busbar, and has insulating trip between this sinking portion and bridge.
In this mode, the structure in the structure of other parts and the embodiment of Fig. 2-5 is identical: insulating barrier and second layer busbar are superimposed to be successively arranged on above intergrade busbar and ground floor busbar; Intergrade busbar is electrically connected with an electrode terminal of each bus capacitor, and ground floor busbar and second layer busbar are electrically connected with an electrode terminal of part bus capacitor respectively.
The two ends in the sinking portion of ground floor busbar all have the contact be electrically connected with the electrode terminal of bus capacitor, and this sinking portion is positioned at the edge of ground floor busbar, the opposite side in this sinking portion has opening; The two ends of the bridge on intergrade busbar all have the contact be electrically connected with the electrode terminal of bus capacitor, and the both sides of this bridge have opening and perforate respectively.
The above; be only the utility model preferably embodiment; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of claim.

Claims (9)

1. the positive and negative busbar laminated construction of frequency converter, described frequency converter comprises the multiple bus capacitors being arranged in three row or more row, and the electrode terminal of all bus capacitors is positioned at same plane, it is characterized in that: this laminated construction comprises intergrade busbar, ground floor busbar, second layer busbar, insulating trip and insulating barrier, wherein: described intergrade busbar and ground floor busbar are installed in the same plane above bus capacitor; Described intergrade busbar has sinking portion, and ground floor busbar has the bridge be connected across above described sinking portion; The sinking size in described sinking portion is greater than the thickness of the bridge of ground floor busbar, and has insulating trip between this sinking portion and bridge; Described insulating barrier and second layer busbar are superimposed to be successively arranged on above intergrade busbar and ground floor busbar.
2. the positive and negative busbar laminated construction of frequency converter according to claim 1, it is characterized in that: described intergrade busbar is electrically connected with an electrode terminal of each bus capacitor, described ground floor busbar and second layer busbar are electrically connected with an electrode terminal of part bus capacitor respectively.
3. the positive and negative busbar laminated construction of frequency converter according to claim 1 and 2, it is characterized in that: the two ends in the sinking portion of described intergrade busbar all have the contact be electrically connected with the electrode terminal of bus capacitor, and this sinking portion is positioned at the edge of intergrade busbar, the inner side in this sinking portion has opening; The two ends of the bridge on described ground floor busbar all have the contact be electrically connected with the electrode terminal of bus capacitor, and the both sides of this bridge have perforate and opening respectively.
4. the positive and negative busbar laminated construction of frequency converter according to claim 1, is characterized in that: described laminated construction also comprises and is superimposed on the second insulating barrier on second layer busbar and third layer busbar.
5. the positive and negative busbar laminated construction of frequency converter according to claim 1 and 2, it is characterized in that: described ground floor busbar is positive pole busbar, described second layer busbar is cathode bus bar, or ground floor busbar be cathode bus bar, described second layer busbar is positive pole busbar.
6. the positive and negative busbar laminated construction of frequency converter according to claim 1, it is characterized in that: described second layer busbar is provided with multiple perforate, and each perforate is corresponding with the electrode terminal on a bus capacitor.
7. the positive and negative busbar laminated construction of frequency converter, described frequency converter comprises the multiple bus capacitors being arranged in three row or more row, and the electrode terminal of all bus capacitors is positioned at same plane, it is characterized in that: this laminated construction comprises intergrade busbar, ground floor busbar, second layer busbar, insulating trip and insulating barrier, wherein: described intergrade busbar and ground floor busbar are installed in the same plane above bus capacitor; Described ground floor busbar has sinking portion, and described intergrade busbar has the bridge be connected across above described sinking portion; The sinking size in described sinking portion is greater than the thickness of the bridge of intergrade busbar, and has insulating trip between this sinking portion and bridge; Described insulating barrier and second layer busbar are superimposed to be successively arranged on above intergrade busbar and ground floor busbar.
8. the positive and negative busbar laminated construction of frequency converter according to claim 7, it is characterized in that: described intergrade busbar is electrically connected with an electrode terminal of each bus capacitor, described ground floor busbar and second layer busbar are electrically connected with an electrode terminal of part bus capacitor respectively.
9. the positive and negative busbar laminated construction of the frequency converter according to claim 7 or 8, it is characterized in that: the two ends in the sinking portion of described ground floor busbar all have the contact be electrically connected with the electrode terminal of bus capacitor, and this sinking portion is positioned at the edge of ground floor busbar, the inner side in this sinking portion has opening; The two ends of the bridge on described intergrade busbar all have the contact be electrically connected with the electrode terminal of bus capacitor, and the both sides of this bridge have perforate and opening respectively.
CN201420570135.7U 2014-09-29 2014-09-29 The positive and negative busbar laminated construction of frequency converter Active CN204103782U (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107069617A (en) * 2016-12-09 2017-08-18 九江赛晶科技股份有限公司 A kind of composite bus bar of small current application
CN109346323A (en) * 2018-09-29 2019-02-15 蔚来汽车有限公司 Electronic component, frequency converter and inverter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107069617A (en) * 2016-12-09 2017-08-18 九江赛晶科技股份有限公司 A kind of composite bus bar of small current application
CN109346323A (en) * 2018-09-29 2019-02-15 蔚来汽车有限公司 Electronic component, frequency converter and inverter

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