CN219181057U - Direct current breaker cabinet and direct current breaker - Google Patents
Direct current breaker cabinet and direct current breaker Download PDFInfo
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- CN219181057U CN219181057U CN202223377817.XU CN202223377817U CN219181057U CN 219181057 U CN219181057 U CN 219181057U CN 202223377817 U CN202223377817 U CN 202223377817U CN 219181057 U CN219181057 U CN 219181057U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
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Abstract
The utility model discloses a direct current breaker cabinet and a direct current breaker, comprising: the first cabinet body is internally provided with a switch chamber, a first semiconductor device chamber and a grounding chamber, an electric handcart for driving the moving contact to execute opening and closing actions is arranged in the switch chamber, a first arrangement frame is arranged in the first semiconductor device chamber, and a plurality of layers of first placement spaces are arranged in the first arrangement frame along the height direction; the second cabinet body is internally provided with a second semiconductor device chamber, a second arrangement frame is arranged in the second semiconductor device chamber, and a plurality of layers of second arrangement spaces are arranged along the height direction of the second arrangement frame; wherein, the first cabinet body and the second cabinet body are connected to form a whole, and at least one of the first cabinet body and the second cabinet body is provided with a bus chamber. The size and the quantity of the semiconductor devices used in the solid-state circuit breaker are fully considered, the devices are placed by adopting the double-cabinet body and the double-layer arrangement frame, the installation simplicity is remarkably improved, the space of the cabinet body is fully utilized, the size of the circuit breaker is effectively reduced, and the manufacturing cost is saved.
Description
Technical Field
The utility model is used in the field of direct current power grids, and particularly relates to a direct current breaker cabinet and a direct current breaker.
Background
In recent years, with the reduction of non-renewable energy sources and the increasing pollution of traditional energy sources to the environment, new energy source technologies based on distributed power generation technologies, such as wind power generation technologies, solar power generation technologies and the like, are increasingly paid attention, and with the development of distributed energy sources and power semiconductor devices, flexible direct current power distribution has become a competitive alternative to traditional alternating current power distribution in certain applications. The development of dc networks is hampered by some technical hurdles. One of the main obstacles is the lack of a reliable, fast, easy to service and compact dc breaker that can isolate the fault section from the dc grid and keep the healthy area running continuously.
The traditional direct current breaker has the problems of slow action, serious contact ablation, large volume and the like, and the fully-controlled solid direct current breaker has the advantages of small volume, fast action, strong expansibility and the like, and can better meet the requirements, but the fully-controlled solid direct current breaker under the same voltage level needs more devices, the existing cabinet cannot be reasonably arranged under the limited volume, the advantages of the fully-controlled solid direct current breaker cannot be fully exerted, and the defects of large occupied area, difficult maintenance, low integration degree and the like exist.
Disclosure of Invention
The utility model aims to at least solve one of the technical problems in the prior art and provides a direct current breaker cabinet and a direct current breaker.
The technical scheme adopted for solving the technical problems is as follows:
in a first aspect, a dc breaker cabinet, comprising:
the first cabinet body is internally provided with a switch chamber, a first semiconductor device chamber and a grounding chamber, wherein an electric handcart for driving a moving contact to execute opening and closing actions is arranged in the switch chamber, a first arrangement frame is arranged in the first semiconductor device chamber, and a plurality of layers of first placement spaces are arranged in the first arrangement frame along the height direction;
the second cabinet body is internally provided with a second semiconductor device chamber, a second arrangement frame is arranged in the second semiconductor device chamber, and a plurality of layers of second arrangement spaces are arranged along the height direction of the second arrangement frame;
the first cabinet body and the second cabinet body are connected to form a whole, and at least one of the first cabinet body and the second cabinet body is provided with a bus chamber.
With reference to the first aspect, in certain implementation manners of the first aspect, the first cabinet body is provided with a first opening at a side of the first semiconductor device chamber, a first guide rail extending from the first opening to the interior of the first semiconductor device chamber is provided in the first cabinet body, and the first arrangement frame is arranged on the first guide rail and can be pulled out from the first opening along the first guide rail.
With reference to the first aspect and the foregoing implementation manner, in some implementation manners of the first aspect, the second cabinet body is provided with a second opening at a side of the second semiconductor device chamber, a second guide rail extending from the second opening to an inside of the second semiconductor device chamber is provided in the second cabinet body, and the second arrangement frame is provided on the second guide rail and can be pulled out from the second opening along the second guide rail.
With reference to the first aspect and the foregoing implementation manner, in certain implementation manners of the first aspect, the switch chamber is located at a front upper portion of the first cabinet body, the first semiconductor device chamber is located at a front lower portion of the first cabinet body, the grounding chamber is located at a rear lower portion of the first cabinet body, a first bus bar chamber is disposed at a rear upper portion of the first cabinet body, the second semiconductor device chamber is located at a front lower portion of the second cabinet body, and a second bus bar chamber is disposed at a rear upper portion of the second cabinet body.
With reference to the first aspect and the foregoing implementation manner, in certain implementation manners of the first aspect, the first cabinet body is provided with an openable first cover plate at the top of the first bus chamber, the first cabinet body is provided with an openable second cover plate at the top of the switch chamber, a vertical partition board is provided in the first cabinet body, the switch chamber and the first bus chamber are separated by the vertical partition board, the first semiconductor device chamber and the grounding chamber are separated by the vertical partition board, and a wall bushing is provided between the vertical partition board and the first cabinet body and the second cabinet body.
With reference to the first aspect and the foregoing implementation manner, in some implementation manners of the first aspect, an openable third cover plate is provided on the vertical partition.
In a second aspect, a dc circuit breaker includes:
a dc breaker cabinet according to any implementation of the first aspect;
the switch assembly is arranged in the switch chamber and comprises a fixed contact and a moving contact, and the moving contact is arranged in the electric handcart;
a diode valve string disposed on the first arrangement frame;
a controllable switch semiconductor device arranged on the second arrangement frame;
and the incoming line busbar is connected into the busbar chamber, is connected with the switch assembly, the diode valve string and the controllable switch semiconductor device through internal wires, and is finally connected with the outgoing line cable in the grounding chamber.
With reference to the second aspect, in some implementations of the second aspect, the incoming busbar is connected to the busbar chamber and then connected to the copper busbar, the copper busbar is connected to the static contact in the switch chamber, the incoming busbar includes a positive busbar and a negative busbar, the copper busbar connected to the negative busbar is connected to a moving contact of the electric handcart, the copper busbar connected to a static contact connected to a corresponding output end moving contact is connected to a grounding chamber and connected to an outgoing cable, the copper busbar connected to the positive busbar is connected to a moving contact on the electric handcart, the corresponding output end moving contact is connected to a first diode valve string, the output end of the first diode valve string is connected to the copper busbar and enters the second semiconductor device chamber, and is connected to the controllable switch semiconductor device after entering the first semiconductor device chamber and is connected to the second diode valve string, the output end of the second diode valve string is connected to the moving contact on the electric handcart, and the copper busbar connected to the static contact connected to the corresponding output end moving contact is connected to the grounding chamber and connected to the outgoing cable.
With reference to the second aspect and the foregoing implementation manner, in some implementation manners of the second aspect, a grounding switch is disposed in the grounding chamber, and an interlock device is disposed between the grounding switch and the switch assembly.
With reference to the second aspect and the foregoing implementation manner, in certain implementation manners of the second aspect, a cooling chamber is provided at bottoms of the first cabinet body and the second cabinet body, a water inlet pipe and a water outlet pipe are provided in the cooling chamber, and a cooling water pipe extending into the first semiconductor device chamber and the second semiconductor device chamber is provided between the water inlet pipe and the water outlet pipe.
One of the above technical solutions has at least one of the following advantages or beneficial effects: according to the technical scheme, the size and the required number of the semiconductor devices used in the solid-state circuit breaker are fully considered, the devices are placed by adopting the double-cabinet body and the double-layer arrangement frame, the installation simplicity is remarkably improved, the space of the cabinet body is fully utilized, the size of the circuit breaker is effectively reduced, and the manufacturing cost is saved. Provides convenience for later maintenance. And the reasonable structural layout design is adopted, so that the installation and subsequent maintenance are simplified, and the working efficiency is improved.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a front elevational view of one embodiment of a DC breaker cabinet of the utility model;
FIG. 2 is a side view of the first cabinet interior structure of one embodiment shown in FIG. 1;
FIG. 3 is a side view of the internal structure of a second cabinet of the one embodiment shown in FIG. 1;
FIG. 4 is a rear view of the first cabinet internal vertical baffle structure of one embodiment shown in FIG. 1;
fig. 5 is a front view of the internal structure of the first cabinet of one embodiment of the dc breaker;
fig. 6 is a front view of the internal structure of a second cabinet of one embodiment of a dc circuit breaker;
FIG. 7 is a schematic diagram of a moving contact structure of one embodiment of a DC circuit breaker;
fig. 8 is a schematic view of the water inlet pipe and the water outlet pipe of one embodiment of the dc breaker.
Detailed Description
Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.
In the present utility model, if directions (up, down, left, right, front and rear) are described, they are merely for convenience of description of the technical solution of the present utility model, and do not indicate or imply that the technical features must be in a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the present utility model, "a plurality of" means one or more, and "a plurality of" means two or more, and "greater than", "less than", "exceeding", etc. are understood to not include the present number; "above", "below", "within" and the like are understood to include this number. In the description of the present utility model, the description of "first" and "second" if any is used solely for the purpose of distinguishing between technical features and not necessarily for the purpose of indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the present utility model, unless clearly defined otherwise, terms such as "disposed," "mounted," "connected," and the like should be construed broadly and may be connected directly or indirectly through an intermediate medium, for example; the connecting device can be fixedly connected, detachably connected and integrally formed; can be mechanically connected, electrically connected or capable of communicating with each other; may be a communication between two elements or an interaction between two elements. The specific meaning of the words in the utility model can be reasonably determined by a person skilled in the art in combination with the specific content of the technical solution.
Wherein fig. 1 and 2 show reference direction coordinate systems of embodiments of the present utility model, and the embodiments of the present utility model are described below with reference to the directions shown in fig. 1 and 2.
Embodiments of the present utility model provide a dc breaker cabinet for providing a placement space for various components of a dc breaker.
Referring to fig. 1 to 3, the dc breaker cabinet includes a first cabinet body 100 and a second cabinet body 200, the first cabinet body 100 and the second cabinet body 200 are distributed side by side in a left-right direction, and the first cabinet body 100 and the second cabinet body 200 are connected by bolts or the like to form a whole.
The first cabinet body 100 is internally provided with a switch chamber 101, a first semiconductor device chamber 102 and a grounding chamber 103, the switch chamber 101 is internally provided with an electric handcart 104 for driving a moving contact to execute a switching action, the electric handcart 104 can be manually or electrically operated, and the switching of the moving contact and a fixed contact is realized through the movement of the electric handcart 104. The first semiconductor device chamber 102 is provided with a first arrangement frame 105, in order to make full use of the space of the cabinet body, the first arrangement frame 105 is provided with a plurality of layers of first placement spaces along the height direction, for example, in some embodiments, the first arrangement frame 105 is provided with two layers, the second layer is half of the first layer, the part of the first layer, which is not covered by the second layer, is provided with a device with higher height, so that the limited space in the cabinet body is fully utilized, and insulation plates are used for supporting the bottoms of the layers and between the layers, so as to meet the insulation requirement.
The second cabinet 200 is internally provided with a second semiconductor device chamber 201, a second arrangement frame 202 is arranged in the second semiconductor device chamber 201, and the second arrangement frame 202 is provided with a plurality of layers of second arrangement spaces along the height direction, so that enough semiconductor devices can be put in.
Wherein at least one of the first and second cabinets 100 and 200 is provided with a bus bar compartment for the bus bar to be introduced into the interior of the cabinet.
According to the technical scheme, the size and the required number of the semiconductor devices used in the solid-state circuit breaker are fully considered, the devices are placed by adopting the double-cabinet body and the double-layer arrangement frame, the installation simplicity is remarkably improved, the space of the cabinet body is fully utilized, the size of the circuit breaker is effectively reduced, and the manufacturing cost is saved. Provides convenience for later maintenance. And the reasonable structural layout design is adopted, so that the installation and subsequent maintenance are simplified, and the working efficiency is improved. Specific embodiments of the dc circuit breaker are detailed below.
In some embodiments, referring to fig. 1 and 2, the first cabinet 100 is provided with a first opening at a side of the first semiconductor device chamber 102, a first rail 106 extending from the first opening to the inside of the first semiconductor device chamber 102 is provided in the first cabinet 100, and a first placement frame 105 is provided on the first rail 106 and can be pulled out from the first opening along the first rail 106. The first arrangement frame 105 forms a rail car in the first semiconductor device chamber 102, and the first arrangement frame 105 is pulled out of the cabinet body during installation and maintenance, so that the space of the cabinet body can be fully utilized and the installation is convenient. The reasonable structural layout design is adopted in the embodiment, so that installation and subsequent maintenance are simplified, and the working efficiency is improved.
Similarly, referring to fig. 1 and 3, the second cabinet 200 is provided with a second opening at a side of the second semiconductor device chamber 201, a second rail 203 extending from the second opening to the inside of the second semiconductor device chamber 201 is provided in the second cabinet 200, and a second arrangement frame 202 is provided on the second rail 203 and can be pulled out from the second opening along the second rail 203. The second arrangement frame 202 forms a rail car in the second semiconductor device chamber 201, and the second arrangement frame 202 is pulled out of the cabinet body during installation and maintenance, so that the space of the cabinet body can be fully utilized and the installation is convenient. The reasonable structural layout design is adopted in the embodiment, so that installation and subsequent maintenance are simplified, and the working efficiency is improved.
In some embodiments, referring to fig. 2 and 3, the switching chamber 101 is located at a front upper portion of the first cabinet 100, the first semiconductor device chamber 102 is located at a front lower portion of the first cabinet 100, the ground chamber 103 is located at a rear lower portion of the first cabinet 100, the rear upper portion of the first cabinet 100 is provided with a first bus bar chamber 107, the second semiconductor device chamber 201 is located at a front lower portion of the second cabinet 200, and the rear upper portion of the second cabinet 200 is provided with a second bus bar chamber 204.
In some embodiments, referring to fig. 1-3, the first cabinet 100 is provided with an openable first cover plate 108 on top of the first busbar chamber 107, the first cabinet 100 is provided with an openable second cover plate 109 on top of the switch chamber 101, the first cover plate 108 detachable from the first busbar chamber 107 is used for installation of conductors in the first busbar chamber 107, and the second cover plate 109 detachable from the switch chamber 101 is used for auxiliary adjustment of conductor connections in the switch chamber 101. The first cabinet body 100 is provided with a vertical partition plate 110, the switch chamber 101 and the first bus chamber 107 are separated by the vertical partition plate 110, the first semiconductor device chamber 102 and the grounding chamber 103 are separated by the vertical partition plate 110, and a wall bushing is arranged between the vertical partition plate 110 and the first cabinet body 100 and the second cabinet body 200 and used for insulation of the cabinet bodies and connection between the compartments.
Referring to fig. 4, a third cover plate 111 is provided on the vertical partition 110 to be openable. Since the first arrangement frame 105 is pushed into the cabinet body and then is connected with other chambers, a hole is formed between the first semiconductor device chamber 102 and the grounding chamber 103, a detachable third cover plate 111 is placed, when the copper bars need to be connected, the third cover plate 111 is detached for connection, and after connection, the third cover plate 111 is covered.
The embodiment of the utility model also provides a direct current breaker which can be used as a direct current distribution network 10kV solid-state direct current breaker, and referring to fig. 5 and 6, the direct current breaker comprises a switch component, a diode valve string 112, a controllable switch semiconductor device 205 and a direct current breaker cabinet in any embodiment above an incoming line busbar, wherein the switch component is arranged in a switch chamber 101, the switch component comprises a fixed contact 113 and a movable contact 114, and the movable contact 114 is arranged in an electric handcart 104; the diode valve string 112 is arranged on the first arrangement frame 105; the controllable switch semiconductor device 205 is disposed on the second arrangement frame 202; the incoming busbar is connected to the busbar chamber and is connected to the switching assembly, diode valve string 112 and controllable switching semiconductor device 205 by internal wires, and finally to the outgoing cable in the grounding chamber 103.
Further, referring to fig. 5-7, the incoming busbar is connected to the copper busbar after being connected to the busbar chamber, the copper busbar is connected to the fixed contact 113 in the switch chamber 101, the incoming busbar comprises a positive busbar and a negative busbar, the copper busbar connected to the negative busbar is connected to the moving contact 115 of the electric handcart 104, the fixed contact copper busbar connected to the corresponding output moving contact 116 is connected to the grounding chamber 103 and connected to the outgoing cable, the copper busbar connected to the positive busbar is connected to the moving contact 117 on the electric handcart 104, the corresponding output moving contact 118 is connected to the first diode valve string, the output end of the first diode valve string is connected to the copper busbar and enters the second semiconductor device chamber 201, the incoming copper busbar is connected to the controllable switch semiconductor device 205, the controllable switch semiconductor device 205 is connected to the copper busbar and enters the first semiconductor device chamber 102, and is connected to the second diode valve string 112, the output end of the second diode valve string 112 is connected to the moving contact 119 on the electric handcart 104, and the fixed contact copper busbar connected to the grounding chamber 103 and connected to the outgoing cable.
The controllable switching semiconductor device 205 includes an IGBT valve string 206 and a varistor 207 connected in parallel with the IGBT valve string.
Referring to fig. 5, a grounding switch 121 is arranged in the grounding chamber 103, an interlocking device 122 is arranged between the grounding switch 121 and the switch assembly, the grounding switch and the electric handcart 104 isolating switch chamber 101 meet the interlocking requirement, and the electric handcart 104 is installed in the electric handcart 104 isolating switch chamber 101, so that manual and electric control on-off can be realized, and the subsequent overhaul is convenient.
In some embodiments, referring to fig. 5, 6 and 8, the bottoms of the first and second cabinets 100 and 200 are provided with a cooling chamber 300, a water inlet pipe 301 and a water outlet pipe 302 are provided in the cooling chamber 300, and a cooling water pipe extending into the first and second semiconductor device chambers 102 and 201 is provided between the water inlet pipe 301 and the water outlet pipe 302, and is used for cooling the semiconductor devices in the two cabinets, respectively.
In the description of the present specification, reference to the terms "example," "embodiment," or "some embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The present utility model is, of course, not limited to the above-described embodiments, and one skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the utility model, and these equivalent modifications or substitutions are intended to be included in the scope of the present utility model as defined in the claims.
Claims (10)
1. A dc breaker cabinet, comprising:
the first cabinet body is internally provided with a switch chamber, a first semiconductor device chamber and a grounding chamber, wherein an electric handcart for driving a moving contact to execute opening and closing actions is arranged in the switch chamber, a first arrangement frame is arranged in the first semiconductor device chamber, and a plurality of layers of first placement spaces are arranged in the first arrangement frame along the height direction;
the second cabinet body is internally provided with a second semiconductor device chamber, a second arrangement frame is arranged in the second semiconductor device chamber, and a plurality of layers of second arrangement spaces are arranged along the height direction of the second arrangement frame;
the first cabinet body and the second cabinet body are connected to form a whole, and at least one of the first cabinet body and the second cabinet body is provided with a bus chamber.
2. The direct current breaker cabinet according to claim 1, wherein the first cabinet body is provided with a first opening at a side of the first semiconductor device chamber, a first rail extending from the first opening to an inside of the first semiconductor device chamber is provided in the first cabinet body, and the first arrangement frame is provided to the first rail and can be pulled out from the first opening along the first rail.
3. The direct current breaker cabinet according to claim 1, wherein the second cabinet body is provided with a second opening at a side of the second semiconductor device chamber, a second guide rail extending from the second opening to an inside of the second semiconductor device chamber is provided in the second cabinet body, and the second arrangement frame is provided to the second guide rail and can be pulled out from the second opening along the second guide rail.
4. The direct current breaker cabinet according to claim 1, wherein the switching chamber is located at a front upper portion of the first cabinet body, the first semiconductor device chamber is located at a front lower portion of the first cabinet body, the grounding chamber is located at a rear lower portion of the first cabinet body, a first bus bar chamber is provided at a rear upper portion of the first cabinet body, the second semiconductor device chamber is located at a front lower portion of the second cabinet body, and a second bus bar chamber is provided at a rear upper portion of the second cabinet body.
5. The direct current breaker cabinet according to claim 4, wherein the first cabinet body is provided with an openable first cover plate at the top of the first bus bar chamber, the first cabinet body is provided with an openable second cover plate at the top of the switch chamber, a vertical partition plate is arranged in the first cabinet body, the switch chamber and the first bus bar chamber are separated by the vertical partition plate, the first semiconductor device chamber and the grounding chamber are separated by the vertical partition plate, and a wall bushing is arranged between the vertical partition plate and the first cabinet body and the second cabinet body.
6. The direct current breaker cabinet according to claim 5, wherein the vertical partition is provided with an openable third cover plate.
7. A direct current circuit breaker, comprising:
the dc breaker cabinet of any one of claims 1 to 6;
the switch assembly is arranged in the switch chamber and comprises a fixed contact and a moving contact, and the moving contact is arranged in the electric handcart;
a diode valve string disposed on the first arrangement frame;
a controllable switch semiconductor device arranged on the second arrangement frame;
and the incoming line busbar is connected into the busbar chamber, is connected with the switch assembly, the diode valve string and the controllable switch semiconductor device through internal wires, and is finally connected with the outgoing line cable in the grounding chamber.
8. The direct current breaker according to claim 7, wherein the incoming busbar is connected to the busbar chamber and then connected to a copper bar, the copper bar is connected to a stationary contact in the switch chamber, the incoming busbar comprises a positive busbar and a negative busbar, the copper bar connected to the negative busbar is connected to a moving contact of the electric handcart, the stationary contact copper bar connected to a corresponding output moving contact is connected to a grounding chamber and connected to an outgoing cable, the copper bar connected to the positive busbar is connected to a moving contact on the electric handcart, the corresponding output moving contact is connected to a first diode string, the output of the first diode string is connected to a copper bar, the copper bar is connected to a second semiconductor device chamber, and is connected to a controllable switch semiconductor device after entering the first semiconductor device chamber and connected to the second diode string, the output of the second diode string is connected to a moving contact on the electric handcart, and the stationary contact copper bar connected to the corresponding output moving contact is connected to the grounding chamber and connected to the outgoing cable.
9. The dc circuit breaker of claim 8, wherein a grounding switch is provided in the grounding chamber, and an interlock is provided between the grounding switch and the switch assembly.
10. The direct current breaker according to claim 8, wherein the bottoms of the first and second cabinets are provided with a cooling chamber in which a water inlet pipe and a water outlet pipe are provided, and a cooling water pipe extending into the first and second semiconductor device chambers is provided between the water inlet pipe and the water outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223377817.XU CN219181057U (en) | 2022-12-14 | 2022-12-14 | Direct current breaker cabinet and direct current breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223377817.XU CN219181057U (en) | 2022-12-14 | 2022-12-14 | Direct current breaker cabinet and direct current breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219181057U true CN219181057U (en) | 2023-06-13 |
Family
ID=86661807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223377817.XU Active CN219181057U (en) | 2022-12-14 | 2022-12-14 | Direct current breaker cabinet and direct current breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219181057U (en) |
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2022
- 2022-12-14 CN CN202223377817.XU patent/CN219181057U/en active Active
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