CN113690821A - Intensive bus duct with T-shaped cover plate structure - Google Patents
Intensive bus duct with T-shaped cover plate structure Download PDFInfo
- Publication number
- CN113690821A CN113690821A CN202110943824.2A CN202110943824A CN113690821A CN 113690821 A CN113690821 A CN 113690821A CN 202110943824 A CN202110943824 A CN 202110943824A CN 113690821 A CN113690821 A CN 113690821A
- Authority
- CN
- China
- Prior art keywords
- conductor
- cover plate
- bus duct
- conductors
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004020 conductor Substances 0.000 claims abstract description 126
- 238000005192 partition Methods 0.000 claims abstract description 19
- 230000017525 heat dissipation Effects 0.000 claims description 10
- 239000011810 insulating material Substances 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 238000004073 vulcanization Methods 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000001723 curing Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 238000007493 shaping process Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000011344 liquid material Substances 0.000 description 2
- 229920006267 polyester film Polymers 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G5/00—Installations of bus-bars
- H02G5/06—Totally-enclosed installations, e.g. in metal casings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G5/00—Installations of bus-bars
- H02G5/10—Cooling
Landscapes
- Installation Of Bus-Bars (AREA)
Abstract
The invention relates to the field of power transmission equipment, in particular to a T-shaped cover plate structure intensive bus duct which comprises a shell and a plurality of conductors extending along a first direction, wherein the shell is surrounded by two oppositely arranged cover plates and two oppositely arranged side plates to form a semi-closed structure which is provided with an inner cavity and is open in the first direction, the conductors are arranged in parallel in the shell along a second direction and penetrate through the shell in the first direction, partition plates extend towards the interior of the shell along a third direction on the inner wall of the cover plates, the partition plates divide the inner cavity of the shell into a plurality of cavities, and the conductors are arranged in the cavities. The invention has the beneficial effects that: effectively reduce the temperature rise index when the bus duct operates, improved the stability and the security of bus duct.
Description
Technical Field
The invention relates to the field of power transmission equipment, in particular to a compact bus duct with a T-shaped cover plate structure.
Background
The conventional intensive bus duct has the structural characteristics that: the intensive bus duct is composed of a shell, a phase bus, a polyester film, an insulating partition plate, an insulating clamping block, a shell fastener, a connector fastener and the like, wherein the surface of the bus is coated by the polyester film; the buses are closely arranged and clamped according to the sequence of L1, L2, L3 and N, and are assembled in the bus duct shell to form a sandwich structure. The existing intensive bus duct is formed by fastening a cover plate and a side plate which surround a conductor, wherein the cover plate and the side plate are composed of a shell (the cover plate and the side plate), the conductor (a copper bar or an aluminum bar), an insulating material and a fastening piece. The defects that the heat dissipation capacity is poor, heat accumulation between conductors is serious when the bus runs, particularly when the bus runs, the conductors adopt a multilayer structure, heat generated by the conductors in the inner center position cannot be effectively diffused, the use condition of the bus is seriously reduced, in order to reach the use standard, the section of the conductor can be only enlarged or the heat dissipation area of a shell can be increased, the overall cost of the bus is too high, and the actual operation condition is poor.
Therefore, the invention is formed in order to ensure that the bus duct works safely, increase the current-carrying capacity of the conductor and ensure that the temperature rise of each part of the bus duct meets the national standard.
Disclosure of Invention
The invention provides a compact bus duct with a T-shaped cover plate structure, which aims to solve the technical problem.
The technical scheme for solving the technical problems is as follows:
a dense bus duct with a T-shaped cover plate structure comprises a shell and a plurality of conductors extending along a first direction, wherein the shell is surrounded by two oppositely arranged cover plates and two oppositely arranged side plates to form a semi-closed structure which is provided with an inner cavity and is open in the first direction, the conductors are arranged in the shell in parallel along a second direction, and the conductors penetrate through the shell in the first direction;
the cover plate is parallel to the second direction, the inner wall of the cover plate is recessed towards the outer side of the shell in the third direction to form a groove, the side plate is parallel to the third direction, the side plate can cover the groove to form a semi-closed space which is opened in the first direction, and the first direction, the second direction and the third direction are respectively vertical;
at least one of the conductors is configured to have a flange parallel to the second direction at least one edge in the third direction, the flange is received by the slot, and the flange is in contact with the inner wall of the cover plate;
the inner wall of the cover plate extends towards the inside of the shell along a third direction to form a partition plate, the partition plate divides the inner cavity of the shell into a plurality of cavities, and the conductor is arranged in the cavities.
As a preferable technical solution of the present invention, two edges of the side plate in the third direction are bent to form folded edges extending to the outside of the housing along the second direction, the folded edges are respectively connected with the two cover plates, and the folded edges do not exceed the cover plates in the second direction.
As a preferable technical solution of the present invention, the cover plate is provided with wing plates at two edges in the second direction, and the wing plates are parallel to the third direction.
As a preferable aspect of the present invention, the conductor includes a first conductor and a second conductor adjacent to the side plate, and a third conductor and a fourth conductor adjacent to the first conductor and the second conductor, respectively.
As a preferred technical solution of the present invention, each of the conductors is provided with one of the flanges, the flanges of the first conductor and the second conductor are located in the same slot, and the flanges of the third conductor and the fourth conductor are located in the other slot.
As a preferred technical solution of the present invention, the first conductor and the second conductor are not provided with flanges, and the edges of the third conductor and the fourth conductor at two sides in the third direction are respectively provided with a flange and are respectively located in the two slots.
As a preferred technical solution of the present invention, each of the conductors is provided with one of the flanges, the flanges of the first conductor and the fourth conductor are located in the same slot, and the flanges of the second conductor and the third conductor are located in the other slot.
In a preferred embodiment of the present invention, the first conductor is an L1 phase conductor, the second conductor is an N phase conductor, the third conductor is an L2 phase conductor, and the fourth conductor is an L3 phase conductor.
As a preferable technical scheme of the invention, the partition plate and the cover plate are integrally formed, and the outer wall of the side plate is provided with a heat dissipation groove.
In a preferred embodiment of the present invention, the surface of each of the conductors is covered with an insulating film, and the insulating film is insulating powder or insulating liquid material.
The invention has the beneficial effects that:
(1) the baffle plate arranged in the cover plate can transfer the internal accumulated heat to the outside through the inner plates of the upper cover plate and the lower cover plate, thereby effectively preventing the internal accumulated heat from generating, and having compact structure and difficult deformation;
(2) the structure of the conductor is improved, the heat transfer efficiency is effectively increased through the flanging attached to the shell, particularly, the heat of the conductor inside can be transferred out, the heat accumulation phenomenon is prevented, the temperature rise index of the bus duct during operation is effectively reduced, and the stability and the safety of the bus duct are improved;
(3) because other heat conducting materials are not added, the structure of the shell and the conductor is only improved, the production and manufacturing process is simple, and the product cost is reduced.
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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a cross-sectional view of an embodiment of the present invention in a first orientation;
FIG. 2 is a cross-sectional view of another embodiment of the present invention in a first orientation;
fig. 3 is a cross-sectional view of another embodiment of the present invention in a first orientation.
In the figure: 1. a cover plate; 2. a side plate; 3. a first conductor; 4. a second conductor; 5. a third conductor; 6. a fourth conductor; 7. flanging; 8. a groove; 9. a heat sink; 10. a partition plate; 11. folding edges; 12. a wing plate.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, their indicated orientations or positional relationships are based on those shown in the drawings only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the referred device or element 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" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, e.g., as being 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, an embodiment of a dense busbar channel with a T-shaped cover plate structure is shown, which is specifically structured to include a housing extending along a first direction and a conductor extending along the first direction. The casing is enclosed by two apron 1 that set up relatively and two curb plates 2 that set up relatively and forms and have the inner chamber and at the open semi-enclosed construction of first direction, and the conductor sets up along the second direction parallel in the casing, and the conductor runs through the casing in first direction. The number of the conductors is 4, the surface of each conductor is wrapped by an insulating film, the insulating film is insulating powder or insulating liquid material, and the insulating film is formed by a thermosetting mode and a vulcanization spraying process. Specifically, the side plate includes a first conductor 3 and a second conductor 4 adjacent to the side plate 2, and a third conductor 5 and a fourth conductor 6 adjacent to the first conductor 3 and the second conductor 4, respectively, where the following settings are set for convenience of description: the first conductor 3 is an L1 phase conductor, the second conductor 4 is an N phase conductor, the third conductor 5 is an L2 phase conductor, and the fourth conductor 6 is an L3 phase conductor. Of course, in the specific implementation, the phase of the conductor can be adjusted, and the technical idea of the invention is not affected.
In the embodiment shown in fig. 1, one edge of each conductor in the third direction is provided with a flange 7 parallel to the second direction, and the flange 7 conducts internal heat to the outside of the housing by contacting the inner wall of the cover plate 1. Further, the cover plate 1 is parallel to the second direction, a groove 8 is formed in the third direction on the outer side of the shell through a stamping process on the inner wall of the cover plate 1, the side plate 2 is parallel to the third direction, the side plate 2 can cover the groove 8 to form a semi-closed space which is open in the first direction, the flanging 7 of the first conductor 3 and the second conductor 4 are positioned in the groove 8 on the lower side in the figure, and the flanging 7 of the third conductor 5 and the fourth conductor 6 are positioned in the other groove 8 on the upper side in the figure.
The connection mode of the cover plate 1 and the side plate 2 has various types, in this embodiment, the two edges of the side plate 2 in the third direction are bent to form folded edges 11 extending to the outer side of the housing along the second direction, the folded edges 11 are respectively connected with the two cover plates 1, and the folded edges 11 do not exceed the cover plates 1 in the second direction. The inner wall of the cover plate 1 extends towards the inside of the shell along the third direction and is provided with a partition plate 10, the inner cavity of the shell is divided into 2 cavities by the partition plate 10, and the conductors are arranged in the cavities. The number of the partition boards 10 is generally 2, that is, 1 partition board 10 is respectively oppositely arranged on the upper side cover board 1 and the lower side cover board 1, and a certain distance is left between the two partition boards 10, of course, the number of the partition boards 10 can be increased or decreased, for example, 3 partition boards 10 are arranged on each cover board 1, and one conductor is accommodated between each partition board 10, but this increases the width and the manufacturing cost of the bus duct 8, but is more favorable for heat dissipation, and should be selected according to actual conditions.
The partition plate 10 and the cover plate 1 are integrally formed, and in order to further increase the heat dissipation capacity, the outer wall of the side plate 2 is provided with a heat dissipation groove 9. The specific form of the heat dissipation groove 9 is not limited herein, and it is shown that a plurality of V-shaped grooves 8 are formed on the outer wall of the side plate 2 along a first direction to increase the surface area for heat dissipation. And the heat dissipation efficiency of the shell is further improved, wing plates 12 are arranged at two edges of the cover plate 1 in the second direction, and the wing plates 12 are parallel to the third direction.
As another embodiment, as shown in fig. 2, on the basis of the previous embodiment, the structure of the housing is not changed, and the structure of the conductor is improved: the first conductor 3 and the second conductor 4 are not provided with the flanges 7, and the third conductor 5 and the fourth conductor 6 are respectively provided with one flange 7 at two side edges in the third direction and respectively positioned in the two grooves 8. So can effectually carry out outer transmission with the heat of third conductor 5 and fourth conductor 6 through baffle 10 and turn-ups 7 in advance, prevent that inside amasss hot too much, protect the bus duct.
As another embodiment, as shown in fig. 3, compared with the embodiment shown in fig. 1, the structure of the conductor is not changed, and only the flanges 7 of the first conductor 3 and the fourth conductor 6 are located in the same slot 8, and the flanges 7 of the second conductor 4 and the third conductor 5 are located in the other slot 8. The effect is basically the same as that of the embodiment shown in fig. 1, and the embodiment is only for illustrating that the structure of the conductor in the invention can be changed freely within the concept of the invention and is suitable for different working conditions.
In addition, in the above embodiments, the cover plate 1 and the side plate 2 are made of iron, aluminum or an alloy thereof.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (11)
1. The utility model provides a T type apron intensive bus duct of structure which characterized in that, includes the casing to and a plurality of conductors along stretching along the first direction, the casing surrounds the formation by the apron of two relative settings and the curb plate of two relative settings and has the inner chamber and at the open semi-enclosed construction of first direction, a plurality of conductors are in along second direction parallel arrangement in the casing, just the conductor runs through in the first direction is parallel the casing, every the conductor surface all wraps up insulating material.
2. The cover plate is parallel to the second direction, the inner wall of the cover plate is recessed towards the outer side of the shell in the third direction to form a groove, the side plate is parallel to the third direction, the side plate can cover the groove to form a semi-closed space which is opened in the first direction, and the first direction, the second direction and the third direction are respectively vertical;
at least one of the conductors is configured to have a flange parallel to the second direction at least one edge in the third direction, the flange is received by the slot, and the flange is in contact with the inner wall of the cover plate;
the inner wall of the cover plate extends towards the inside of the shell along a third direction to form a partition plate, the partition plate divides the inner cavity of the shell into a plurality of cavities, and the conductor is arranged in the cavities.
3. The dense bus duct with T-shaped cover plate structure as claimed in claim 1, wherein two edges of the side plate in the third direction are bent to form folded edges extending to the outside of the housing along the second direction, the folded edges are respectively connected with two cover plates, and the folded edges do not exceed the cover plates in the second direction.
4. The dense busway of T-shaped cover plate structure as claimed in claim 2, wherein the cover plate is provided with wings at both edges of the second direction, the wings being parallel to the third direction.
5. The T-deck dense bus duct of claim 3, wherein the conductors comprise first and second conductors adjacent the side plates, and third and fourth conductors adjacent the first and second conductors, respectively.
6. The intensive bus duct with the T-shaped cover plate structure as claimed in claim 4, wherein each conductor is provided with one of the flanges, the flanges of the first conductor and the second conductor are located in the same side of the duct, and the flanges of the third conductor and the fourth conductor are located in the other side of the duct.
7. The intensive bus duct with the T-shaped cover plate structure as claimed in claim 4, wherein the first conductor and the second conductor are not provided with flanges, and the third conductor and the fourth conductor are respectively provided with a flange at two side edges in the third direction and are respectively positioned in the two slots.
8. The intensive bus duct with the T-shaped cover plate structure as claimed in claim 4, wherein each conductor is provided with one of the flanges, the flanges of the first conductor and the fourth conductor are located in the same side of the duct, and the flanges of the second conductor and the third conductor are located in the other side of the duct.
9. The dense busbar slot of T-shaped cover plate structure as claimed in any one of claims 4 to 7, wherein the first conductor is an L1 phase conductor, the second conductor is an N phase conductor, the third conductor is an L2 phase conductor, and the fourth conductor is an L3 phase conductor.
10. The intensive bus duct with the T-shaped cover plate structure as claimed in claim 1, wherein the partition plate and the cover plate are integrally formed, and the outer wall of the side plate is provided with a heat dissipation groove.
11. The intensive bus duct with the T-shaped cover plate structure as claimed in claim 1, wherein the surface of each conductor is wrapped with an insulating material, and the insulating material is an insulating film or an insulating powder, or an insulating layer which is formed by heating, curing and shaping after the liquid insulating material is treated by a vulcanization or electrostatic powder spraying process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110943824.2A CN113690821A (en) | 2021-08-17 | 2021-08-17 | Intensive bus duct with T-shaped cover plate structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110943824.2A CN113690821A (en) | 2021-08-17 | 2021-08-17 | Intensive bus duct with T-shaped cover plate structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113690821A true CN113690821A (en) | 2021-11-23 |
Family
ID=78580256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110943824.2A Pending CN113690821A (en) | 2021-08-17 | 2021-08-17 | Intensive bus duct with T-shaped cover plate structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113690821A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114006336A (en) * | 2021-11-25 | 2022-02-01 | 青岛东山集团电气科技有限公司 | Take U type aluminum heat dissipation board copper conductor compact busway |
| CN114006335A (en) * | 2021-11-25 | 2022-02-01 | 青岛东山集团电气科技有限公司 | Take L type aluminum heat dissipation board copper conductor compact busway |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3584138A (en) * | 1969-12-10 | 1971-06-08 | Westinghouse Electric Corp | Bus duct including improved housing |
| CN205265197U (en) * | 2015-12-09 | 2016-05-25 | 江苏亿斯达金属制品有限公司 | Bus duct with high security performance |
| CN207588411U (en) * | 2017-11-24 | 2018-07-06 | 王小华 | Concentration bus duct |
| CN208722650U (en) * | 2018-06-11 | 2019-04-09 | 深圳市赛斯电气技术有限公司 | A kind of heat-conducting type master row insulating |
| CN209948616U (en) * | 2019-05-17 | 2020-01-14 | 广东中汉达电气有限公司 | Intensive bus duct |
| CN112018695A (en) * | 2020-09-15 | 2020-12-01 | 青岛东山集团母线智造有限公司 | Intensive bus duct with heat conducting fins |
-
2021
- 2021-08-17 CN CN202110943824.2A patent/CN113690821A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3584138A (en) * | 1969-12-10 | 1971-06-08 | Westinghouse Electric Corp | Bus duct including improved housing |
| CN205265197U (en) * | 2015-12-09 | 2016-05-25 | 江苏亿斯达金属制品有限公司 | Bus duct with high security performance |
| CN207588411U (en) * | 2017-11-24 | 2018-07-06 | 王小华 | Concentration bus duct |
| CN208722650U (en) * | 2018-06-11 | 2019-04-09 | 深圳市赛斯电气技术有限公司 | A kind of heat-conducting type master row insulating |
| CN209948616U (en) * | 2019-05-17 | 2020-01-14 | 广东中汉达电气有限公司 | Intensive bus duct |
| CN112018695A (en) * | 2020-09-15 | 2020-12-01 | 青岛东山集团母线智造有限公司 | Intensive bus duct with heat conducting fins |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114006336A (en) * | 2021-11-25 | 2022-02-01 | 青岛东山集团电气科技有限公司 | Take U type aluminum heat dissipation board copper conductor compact busway |
| CN114006335A (en) * | 2021-11-25 | 2022-02-01 | 青岛东山集团电气科技有限公司 | Take L type aluminum heat dissipation board copper conductor compact busway |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113690821A (en) | Intensive bus duct with T-shaped cover plate structure | |
| CN211127444U (en) | Integrated electric drive system | |
| KR20210138686A (en) | Battery modules, power battery packs and vehicles | |
| CN112018695A (en) | Intensive bus duct with heat conducting fins | |
| CN214479430U (en) | Symmetrical comprehensive heat dissipation intensive bus duct | |
| US11683918B2 (en) | Power electronics module with improved space utilization and thermal management characteristics | |
| CN103872924B (en) | Variable frequency controller and anti-explosion variable frequency motor with same | |
| CN216413848U (en) | L-shaped conductor intensive bus duct | |
| CN216413847U (en) | Intensive bus duct with PE (polyethylene) line centering structure | |
| CN216413846U (en) | Intensive bus duct capable of balancing temperature rise | |
| CN217240571U (en) | Frequency converter power unit | |
| CN211720217U (en) | Fastener type low-temperature-rise bus duct | |
| CN210744121U (en) | Improved low intermodulation high-power loader | |
| CN209805363U (en) | Air bus duct | |
| CN103872832B (en) | Anti-explosion variable frequency motor | |
| CN216413845U (en) | Bus duct with hollow conductor | |
| CN207517533U (en) | A kind of low noise electrical parallel capacitance | |
| CN211958699U (en) | High heat dissipation bus duct | |
| CN113067080A (en) | Battery and battery module, power battery pack and electric automobile with same | |
| CN212380912U (en) | Intensive bus duct with heat conducting fins | |
| CN217282087U (en) | Intensive bus duct with variable resistors | |
| CN217469394U (en) | Bus duct | |
| CN216902903U (en) | Cooling system of inverter | |
| CN210327395U (en) | Copper bar structure with heat dissipation function | |
| CN217282089U (en) | Hollow intensive bus duct |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211123 |
|
| RJ01 | Rejection of invention patent application after publication |