CN220121694U - Two-pole direct current special power equipment - Google Patents
Two-pole direct current special power equipment Download PDFInfo
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- CN220121694U CN220121694U CN202321526028.XU CN202321526028U CN220121694U CN 220121694 U CN220121694 U CN 220121694U CN 202321526028 U CN202321526028 U CN 202321526028U CN 220121694 U CN220121694 U CN 220121694U
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- shell
- installation cavity
- connecting pieces
- contact
- length direction
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- 238000009434 installation Methods 0.000 claims abstract description 74
- 230000003068 static effect Effects 0.000 claims description 19
- 238000004880 explosion Methods 0.000 claims description 12
- 238000010891 electric arc Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 abstract description 2
- 238000003466 welding Methods 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Abstract
The utility model discloses a bipolar direct current special power device, and belongs to the technical field of piezoelectric devices. The device comprises a shell, a contact system and an arc extinguishing chamber; two installation cavities along the height direction of the shell are arranged in the shell, the two installation cavities are arranged in the shell along the length direction of the shell, a contact system and an arc extinguishing chamber are arranged in each installation cavity, and the arc-extinguishing chamber is positioned above the contact system and is used for enabling an arc generated by voltage to enter the arc-extinguishing chamber to perform arc-extinguishing operation when the contact system is separated, and two opposite side walls of the installation cavity are respectively set to be an a side and a b side. Under the condition of ensuring the unchanged depth, the power equipment realizes partial pressure by increasing and decreasing the number of arc extinguishing grid plates by using the two-pole fracture, namely the fracture above 3 poles of the prior art, which is replaced by the installation cavity, and achieves the break above 1500V.
Description
Technical Field
The utility model relates to a bipolar direct current special power device, and belongs to the technical field of piezoelectric devices.
Background
The dc power equipment has a simple arc extinguishing device capable of cutting off rated current and a certain overload current, but incapable of cutting off short-circuit current. At present, the direct current voltage required in the new energy market is higher and higher, the direct current voltage reaches DC1500V or higher, the volume of power equipment is required to be smaller and smaller, and the cost is lower and lower.
The current power equipment commonly used in the market adopts more than 3 poles of alternating current products to be connected in series (as shown in figure 1), partial pressure is realized by increasing the number of the fracture and the arc extinguishing chambers, more than 1500V is achieved, but the increase of the number of the series poles leads to large volume of the products, high cost and incapability of meeting the market demand of new energy.
So a special bipolar direct current power device is urgently needed at present.
Disclosure of Invention
The utility model aims at the technical problems mentioned in the background art, and is realized by adopting the following technical scheme:
a bipolar direct current special power device comprises a shell, a contact system and an arc extinguishing chamber;
two installation cavities along the height direction of the shell are formed in the shell, the two installation cavities are arranged in the shell along the length direction of the shell, the depth of the two installation cavities is equal, a contact system and an arc extinguishing chamber are arranged in each installation cavity, the arc extinguishing chamber is positioned above the contact system, when the contact system is separated, an arc generated by voltage enters the arc extinguishing chamber to perform arc extinguishing operation, two opposite side walls of the installation chamber are respectively provided with an a side and a b side, and the a side or the b side of the installation chamber is provided with a connecting piece for fixing the arc extinguishing chamber in the installation chamber.
Preferably, along the length direction of the housing, the connecting piece for fixing the arc extinguishing chamber is respectively fixed on an a side of the mounting cavity at one end of the housing, a b side of the mounting cavity at the other end of the housing and a side wall shared by two adjacent mounting cavities, namely, a side wall formed when the a side and the b side are contacted or are close to each other;
or along the length direction of the shell, all the arc-extinguishing chambers are covered by the fixing plates at the moment, and the fixing plates are fixed on the a side and the b side of the installation cavity by the connecting pieces.
Preferably, the contact system comprises a moving contact, a clamping plate, a contact support and a bracket, wherein the moving contact is rotatably sleeved on the clamping plate through a first rotating shaft, the top of the clamping plate is arranged on the contact support through a connecting piece, the bottom of the bracket is arranged on a shell through a screw, a semicircular arc groove is formed in the side wall of the bracket, a second rotating shaft is rotatably sleeved on the semicircular arc groove, and the two second rotating shafts are respectively fixed below the two outer side walls of the clamping plate;
the inside of the shell is also provided with a static contact, the contact piece arranged at the top end of the movable contact corresponds to the static contact, and when the static contact piece is contacted with the contact piece, the electric power equipment conducts electricity; when the static contact piece is separated from the contact piece for a moment after being contacted, the arc generated by the voltage enters the arc extinguishing chamber to perform arc extinguishing operation.
Preferably, the inside of casing is equipped with quiet generating line and movable bus in parallel along the casing direction of height, and quiet generating line is located the top of movable bus, just quiet contact is fixed on the quiet generating line of being located the inside upper strata of casing, the bottom of movable contact cooperatees with the second pivot that is located on the movable bus lateral wall of casing inner lower floor, and the second pivot is used for assisting the movable contact to rotate.
Preferably, the inside connecting rod that still is equipped with of casing, the outside of casing still is equipped with main shaft and cantilever, the one end welding of cantilever is on the main shaft, the other end of cantilever is articulated mutually with the connecting rod, the contact supports and installs the third pivot, the other end and the third pivot rotation of connecting rod are connected.
Preferably, the arc extinguishing chamber is fixedly provided with an arc extinguishing grid sheet, and the arc extinguishing grid sheet is positioned at the inner top of the shell.
Preferably, the housing is formed by assembling a base and a bottom plate.
Preferably, the number of the connecting pieces fixed on the a side of the installation cavity at one end of the top of the shell and the top of the shell close to the a side at the moment, the number of the connecting pieces fixed on the b side of the installation cavity at the other end of the top of the shell and the top of the shell close to the b side, and the number of the connecting pieces on the a side and the b side on two adjacent arc extinguishing chambers are 1, and each connecting piece is respectively installed at the middle position of the a side and the b side of the installation cavity.
Preferably, along the length direction of the shell, the number of the a-side of the installation cavity fixed at one end part of the top of the shell and the connecting pieces at the top of the shell close to the a-side, the number of the b-side of the installation cavity fixed at the other end part of the top of the shell and the connecting pieces at the top of the shell close to the b-side, and the number of the connecting pieces at the a-side and the b-side on two adjacent arc extinguishing chambers are all provided with a plurality of connecting pieces; and a plurality of connecting pieces divide equally into a plurality of parts according to the number of installing cavities, and wherein one part of connecting pieces is installed respectively on an a-edge of one end part of the shell along the length direction of the shell, and the other part of connecting pieces is installed respectively on a b-edge of the other end part of the shell along the length direction of the shell, and each part of connecting pieces in the other parts is installed respectively on an a-edge of one installing cavity and a b-edge of the other installing cavity of each two adjacent arc-extinguishing chambers.
Further, along the length direction of the shell, two connecting pieces are respectively arranged on the edge of the side a on one end part of the shell and the edge of the side b on the other end part of the shell, and two connecting pieces are jointly arranged on the side a of one installation cavity and the side b of the other installation cavity on two adjacent arc extinguishing chambers.
Preferably, all arc-extinguishing chambers are covered by the fixing plate along the length direction of the shell, the number of connecting pieces required when one end of the fixing plate is fixed on the installation cavity a side positioned at one end of the shell and the shell close to the a side and the number of connecting pieces required when the other end of the fixing plate is fixed on the installation cavity b side positioned at one end of the shell and the shell close to the b side are 1, 1 connecting piece is installed at the middle position of one end of the fixing plate, the other 1 connecting piece is installed at the middle position of one end of the fixing plate, and a plurality of connecting pieces are also installed on the U-shaped plate and the shell jointly along the length direction of the shell.
Preferably, all arc-extinguishing chambers are covered by the fixing plate along the length direction of the shell, the number of connecting pieces required when one end of the fixing plate is fixed on the shell close to the side a of the installation cavity at one end of the shell and the number of connecting pieces required when the other end of the fixing plate is fixed on the side b of the installation cavity at one end of the shell and the shell close to the side b of the installation cavity are multiple, the connecting pieces are divided into two parts equally, one part of the connecting pieces is installed at one end of the fixing plate, the other part of the connecting pieces is installed at the other end of the fixing plate, and a plurality of connecting pieces are also installed on the U-shaped plate and the shell jointly along the length direction of the shell.
Further, when one end of the fixing plate is fixed on the a side of the installation cavity at one end of the shell and the shell close to the a side, the number of the required connecting pieces and the number of the required connecting pieces when the other end of the fixing plate is fixed on the b side of the installation cavity at one end of the shell and the shell close to the b side are 2, 2 connecting pieces are arranged at two edges of one end of the fixing plate, the other 2 connecting pieces are arranged at two edges of the other end of the fixing plate, and a plurality of connecting pieces are also commonly arranged on the U-shaped plate and the shell along the length direction of the shell.
Preferably, the height direction of the shell is the same as the height direction of the arc extinguishing chamber, the length direction of the shell is consistent with the width direction of the arc extinguishing chamber, and the width direction of the shell is consistent with the length direction of the arc extinguishing chamber.
The power equipment refers to one of a disconnecting switch, a circuit breaker and a load switch.
The connecting piece is one of a screw, a rivet, a bolt and a nut combination.
The beneficial effects of the utility model are as follows: under the condition of ensuring the unchanged depth, the power equipment realizes partial pressure by increasing and decreasing the number of arc extinguishing grid plates by using the two-pole fracture, namely the fracture above 3 poles of the prior art, which is replaced by the installation cavity, and achieves the break above 1500V.
Drawings
FIG. 1 is a schematic diagram of a prior art structure;
FIG. 2 is a schematic view of the positions of the arc extinguishing chamber, the placement cavity, the arc extinguishing gate sheet, the shell and the mounting cavity of the utility model;
FIG. 3 is a schematic view of the present utility model in a vertical section along the middle of the housing;
FIG. 4 is a schematic view of the operating mechanism of the present utility model taken vertically along the middle of the housing;
FIG. 5 is a schematic view of the portion A in FIG. 4;
FIG. 6 is a schematic view of an operating mechanism according to the present utility model;
FIG. 7 is a schematic view of the structure of the third shaft, link and contact support 20 of the operating mechanism of the present utility model;
in the figure: the device comprises a shell 1, an arc extinguishing chamber 2, a mounting cavity 3, a clamping plate 4, a movable contact 5, a first rotating shaft 6, a static contact 7, a contact 8, a static bus 9, a movable bus 10, a second rotating shaft 11, a bracket 12, a bottom plate 13, a base 14, a motor 15, a cantilever 16, a connecting rod 17, a main shaft 18, a third rotating shaft 19 and a contact support 20.
Detailed Description
The utility model will be further described with reference to the following detailed drawings, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
Example 1
As shown in fig. 1-7, a bipolar direct current special power device comprises a shell 1, a contact system and an arc extinguishing chamber 2;
the inside of casing 1 is offered two installation chambeies 3 along casing 1 direction of height, and two installation chambeies 3 set up along the length direction of casing 1 inside casing 1, the degree of depth of two installation chambeies 3 is equal, the internally mounted in every installation chambeies 3 has contact system and explosion chamber 2, and explosion chamber 2 is located contact system's top, be used for when separating through contact system, there is the generated electric arc of voltage existence to get into in the explosion chamber 2 and carry out the arc extinguishing operation, and the opposite side wall in installation chambeies is established to a limit and b limit respectively, the a limit or the b limit in installation chambeies 3 are equipped with the screw for fix explosion chamber 2 inside installation chambeies 3.
Along the length direction of the housing 1, the screws for fixing the arc extinguishing chamber 2 are respectively fixed on the side a of the mounting cavity 3 at one end of the housing 1, the side b of the mounting cavity 3 at the other end of the housing 1 and the side wall shared by two adjacent mounting cavities 3, namely the side wall formed when the side a and the side b are contacted or are close to each other.
An arc extinguishing grid sheet is fixedly arranged in the arc extinguishing chamber 2 and is positioned at the inner top of the shell 1.
The shell 1 is formed by assembling the base 14 and the bottom plate 13, the shape of the shell 1 is cuboid, and the height of the shell 1 is larger than the length of the shell 1 and larger than the width of the shell 1.
The contact system comprises a moving contact 5, a clamping plate 4, a contact support 20 and a bracket 12, wherein the moving contact 5 is rotatably sleeved on the clamping plate 4 through a first rotating shaft 6, the top of the clamping plate 4 is arranged on the contact support 20 through a screw, the bottom of the bracket 12 is arranged on the shell 1 through a screw, a semicircular arc groove is formed in the side wall of the bracket 12, a second rotating shaft 11 is rotatably sleeved in the semicircular arc groove, and the two second rotating shafts 11 are respectively fixed below the two outer side walls of the clamping plate 4;
the inside of the shell 1 is also provided with a static contact piece 7, a contact piece 8 arranged at the top end of the movable contact 5 corresponds to the static contact piece 7, and when the static contact piece 7 is contacted with the contact piece 8 (mainly the contact piece 8 is contacted with a static silver point on the static contact piece 7), the electric power equipment is conductive; when the static contact piece 7 is separated from the contact piece 8 for a moment after being contacted, an arc generated by voltage enters the arc extinguishing chamber 2 for arc extinguishing operation.
The inside of casing 1 is equipped with quiet generating line 9 and movable bus 10 in parallel along the direction of height of casing 1, and quiet generating line 9 is located the top of movable bus 10, and quiet contact 8 is fixed on the quiet generating line 9 of the inside upper strata of casing 1, and the one end and the movable bus 10 soft coupling of movable contact 5, and second pivot 11 is used for assisting movable contact 5 to rotate (it is to be noted that second pivot 11 is the axle of installing on splint 4, and second pivot 11 is the centre of a circle of movable contact 5 rotation).
The inside connecting rod 17 that still is equipped with of casing 1, the outside of casing 1 still is equipped with main shaft 18, cantilever 16, and the one end welding of cantilever 16 is on main shaft 18, and the other end of cantilever 16 articulates with connecting rod 17 mutually, installs third pivot 19 on the contact support 20, and the other end and the third pivot 19 rotation of connecting rod 17 are connected.
It should be noted that the rotation of the main shaft 18 is achieved by an operating mechanism mounted on the outer side of the housing 1, and the operating mechanism adopts a prior art, for example, patent publication No. CN208093490U, entitled an improved operating mechanism.
The height direction of the housing 1 is the same as the height direction of the arc extinguishing chamber 2, the length direction of the housing 1 is identical to the width direction of the arc extinguishing chamber 2, and the width direction of the housing 1 is identical to the length direction of the arc extinguishing chamber 2.
Working principle: this power equipment, through place explosion chamber 2 at the top of casing 1, and when main shaft 18 rotates, drive the rotation of cantilever 16, then drive the rotation 17 of connecting rod, thereby drive the rotation of first pivot 6, again because moving contact 5 is through the assistance of second pivot 11, thereby make moving contact 51 deflect in casing 1 inside, when contact piece 8 on moving contact 5 contacts with the static contact piece 7 that is located the inside upper static busbar 9 of casing 1 when deflecting, power equipment is electrically conductive this moment, when the static contact piece 7 separates for a moment after contacting with contact piece 8, the arc that produces because of voltage existence enters into the explosion chamber 2 this moment in the operation of carrying out.
In addition, the arc-extinguishing chamber grid plate on the power equipment is installed on the arc-extinguishing chamber 2, and the prior art is adopted for installation, and the detailed description is omitted here.
Example 2
This embodiment is substantially the same as embodiment 1 except that the number of the screws fixed to the a-side of the installation cavity 3 at the end of the top of the case 1 and the top of the case 1 adjacent to the a-side at this time is in common with the number of the screws fixed to the b-side of the installation cavity 3 at the end of the top of the case 1 and the top of the case 1 adjacent to the b-side and the number of the screws on the a-side and the b-side of two adjacent arc extinguishing chambers 2 in the longitudinal direction of the case 1, and the plurality of screws are equally divided into a plurality of parts according to the number of the installation cavities 3, and one of the screws is respectively installed on the a-side of the end of the case 1 in the longitudinal direction of the case 1, the other screw is respectively installed on the b-side of the end of the case 1 in the longitudinal direction of the case 1, each of the remaining screws is respectively installed on the a-side of one installation cavity 3 a-side and the b-side of the other installation cavity 3 of each two adjacent arc extinguishing chambers 2, and none of the screws is installed on the a-side edge and b-side edge of the corresponding installation cavity 3.
Example 3
This embodiment is substantially the same as embodiment 1 except that two screws are provided along the length direction of the case 1 on the a-side edge on one end portion of the case 1 and on the b-side edge on the other end portion of the case 1, and two screws are provided in common on the a-side of one of the installation cavities 3 and the b-side of the other installation cavity 3 on two adjacent arc extinguishing chambers 2.
Example 4
This embodiment is substantially the same as embodiment 1 except that all of the arc extinguishing chambers 2 are covered by a fixing plate in the length direction of the case 1, and one end of the fixing plate is fixed by screws with the side of the installation cavity 3a located at one end of the case 1 and the case 1 adjacent to the side a, and the other end is fixed by screws with the side of the installation cavity 3b located at one end of the case 1 and the case 1 adjacent to the side b for fixing the arc extinguishing chambers 2 inside the installation cavity 3.
The number of the screws required when one end of the fixing plate is fixed on the mounting cavity 3a side positioned at one end of the shell 1 and the shell 1 close to the side a and the number of the screws required when the other end of the fixing plate is fixed on the mounting cavity 3b side positioned at one end of the shell 1 and the shell 1 close to the side b are 1, 1 screw is arranged at the middle position of one end of the fixing plate, the other 1 screw is arranged at the middle position of one end of the fixing plate, and a plurality of screws are also commonly arranged on the U-shaped plate and the shell 1 along the length direction of the shell 1.
Example 5
This embodiment is substantially the same as embodiment 4 except that the number of screws required for fixing one end of the fixing plate to the mounting chamber 3a side located at the end of one end of the housing 1 and the housing 1 adjacent to the a side and the number of screws required for fixing the other end to the mounting chamber 3b side located at the end of one end of the housing 1 and the housing 1 adjacent to the b side are plural, the plural screws are equally divided into two parts, and one of the screws is mounted at one end of the fixing plate and the other is mounted at the other end of the fixing plate, and a plurality of screws are also mounted together on the U-shaped plate and the housing 1 in the length direction of the housing 1, and neither screw is provided at the a-side edge nor the b-side edge of the corresponding mounting chamber 3.
Example 6
This embodiment is substantially the same as embodiment 4 except that the number of screws required when one end of the fixing plate is fixed to the mounting cavity 3a side located at the end of one end of the housing 1 and the housing 1 adjacent to the a side and the number of screws required when the other end is fixed to the mounting cavity 3b side located at the end of one end of the housing 1 and the housing 1 adjacent to the b side are both 2, and wherein 2 screws are installed at both edges of one end of the fixing plate and the other 2 screws are installed at both edges of the other end of the fixing plate, and a plurality of screws are also commonly installed on the U-shaped plate and the housing 1 in the length direction of the housing 1.
The power equipment in embodiments 1 to 6 refers to one of a disconnecting switch, a circuit breaker, and a load switch.
The foregoing shows and describes the basic principles and main features of the present utility model and the advantages of the present utility model. It will be appreciated by persons skilled in the art that the present utility model is not limited to the embodiments described above, but is capable of numerous variations and modifications without departing from the spirit and scope of the utility model as hereinafter claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides a special power equipment of dipolar direct current which characterized in that: comprises a shell, a contact system and an arc extinguishing chamber;
the utility model discloses a high-speed arc extinguishing device, including casing, installation cavity, explosion chamber, connecting piece, explosion chamber and installation cavity, two installation cavities along casing direction of height are offered to the inside of casing, and two the installation cavity sets up along the length direction of casing inside the casing, every installation cavity's internally mounted has contact system and explosion chamber, just the explosion chamber is located contact system's top for when separating through contact system, there is the generated electric arc of voltage existence to get into the explosion chamber and carry out the arc extinguishing operation, and the two opposite side walls of installation cavity are established to a limit and b limit respectively, an limit or b limit of installation cavity are equipped with the connecting piece for fix the explosion chamber at the installation cavity inside.
2. The bipolar direct current dedicated power equipment of claim 1, wherein: along the length direction of the shell, the connecting piece for fixing the arc extinguishing chamber is respectively fixed on an a side of the installation cavity at one end of the shell, a b side of the installation cavity at the other end of the shell and a side wall shared by two adjacent installation cavities; or along the length direction of the shell, all the arc-extinguishing chambers are covered by the fixing plates at the moment, and the fixing plates are fixed on the a side and the b side of the installation cavity by the connecting pieces.
3. The bipolar direct current dedicated power equipment of claim 1, wherein: the contact system comprises a moving contact, a clamping plate, a contact support and a bracket, wherein the moving contact is rotatably sleeved on the clamping plate through a first rotating shaft, the top of the clamping plate is arranged on the contact support through a connecting piece, the bottom of the bracket is arranged on a shell through a screw, a semicircular arc groove is formed in the side wall of the bracket, a second rotating shaft is rotatably sleeved in the semicircular arc groove, and the two second rotating shafts are respectively fixed below the two outer side walls of the clamping plate; the inside of the shell is also provided with a static contact, the contact piece arranged at the top end of the movable contact corresponds to the static contact, and when the static contact piece is contacted with the contact piece, the electric power equipment conducts electricity; when the static contact piece is separated from the contact piece for a moment after being contacted, the arc generated by the voltage enters the arc extinguishing chamber to perform arc extinguishing operation.
4. A bipolar dc power plant as claimed in claim 3, wherein: the inside of casing is equipped with quiet generating line and movable bus in parallel along the casing direction of height, and quiet generating line is located the top of movable bus, just quiet contact is fixed on the quiet generating line of the upper strata in the inside casing, the movable contact rotates with the second pivot as the centre of a circle.
5. A bipolar dc power plant as claimed in claim 3, wherein: the novel contact is characterized in that a connecting rod is further arranged inside the shell, a main shaft and a cantilever are further arranged outside the shell, one end of the cantilever is welded on the main shaft, the other end of the cantilever is hinged to the connecting rod, a third rotating shaft is arranged on the contact support, and the other end of the connecting rod is connected with the third rotating shaft in a rotating mode.
6. The bipolar direct current dedicated power equipment of claim 2, wherein: along the length direction of the shell, the number of the connecting pieces fixed on the a side of the installation cavity at one end of the shell, the number of the connecting pieces fixed on the b side of the installation cavity at the other end of the shell and the number of the connecting pieces on the shared side wall of two adjacent installation cavities are 1, and each connecting piece is respectively installed at the middle position of the a side and the b side of the installation cavity.
7. The bipolar direct current dedicated power equipment of claim 2, wherein: along the length direction of the shell, a plurality of connecting pieces are arranged on the a side of the installation cavity at one end of the shell, the b side of the installation cavity at the other end of the shell and the common side wall on the two adjacent installation cavities; and the plurality of connecting pieces are equally divided into a plurality of parts according to the number of the installation cavities, wherein one part of connecting pieces is respectively installed on an a-side of one end of the shell along the length direction of the shell, the other part of connecting pieces is respectively installed on a b-side of the other end of the shell along the length direction of the shell, and each part of connecting pieces in the other parts is respectively installed on an a-side of one installation cavity and a b-side of the other installation cavity of each two adjacent installation cavities.
8. The bipolar direct current dedicated power equipment of claim 2, wherein: all arc extinguishing chambers are covered by the fixing plate along the length direction of the shell, the number of connecting pieces required by the side of the installation cavity a at one end of the fixing plate and the number of connecting pieces required by the side of the installation cavity b at the other end of the shell are 1, 1 connecting piece is installed at the middle position of one end of the fixing plate, the other 1 connecting piece is installed at the middle position of one end of the fixing plate, and a plurality of connecting pieces are also commonly installed on the U-shaped plate and the shell along the length direction of the shell.
9. The bipolar direct current dedicated power equipment of claim 2, wherein: all arc extinguishing chambers are covered through the fixing plate in the length direction of the shell, the number of connecting pieces required when one end of the fixing plate is fixed with the side of the installation cavity a positioned at one end of the shell and the number of connecting pieces required when the other end of the fixing plate is fixed with the side of the installation cavity b positioned at one end of the shell are multiple, the connecting pieces are equally divided into two parts, one part of the connecting pieces is installed at one end of the fixing plate, the other part of the connecting pieces is installed at the other end of the fixing plate, and a plurality of connecting pieces are also installed on the fixing plate and the shell together in the length direction of the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321526028.XU CN220121694U (en) | 2023-06-14 | 2023-06-14 | Two-pole direct current special power equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321526028.XU CN220121694U (en) | 2023-06-14 | 2023-06-14 | Two-pole direct current special power equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220121694U true CN220121694U (en) | 2023-12-01 |
Family
ID=88894894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321526028.XU Active CN220121694U (en) | 2023-06-14 | 2023-06-14 | Two-pole direct current special power equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220121694U (en) |
-
2023
- 2023-06-14 CN CN202321526028.XU patent/CN220121694U/en active Active
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