CN218384980U - Vacuum circuit breaker - Google Patents
Vacuum circuit breaker Download PDFInfo
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- CN218384980U CN218384980U CN202221863638.4U CN202221863638U CN218384980U CN 218384980 U CN218384980 U CN 218384980U CN 202221863638 U CN202221863638 U CN 202221863638U CN 218384980 U CN218384980 U CN 218384980U
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- vacuum arc
- extinguishing
- vacuum
- heat
- extinguishing pipe
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Abstract
The utility model discloses a vacuum circuit breaker, include: the shell is provided with a containing cavity, and the containing cavity is arranged in an open mode and is communicated with the outside air; the vacuum arc extinguishing tube is arranged on the shell and is contained in the containing cavity; the first heat dissipation piece is arranged at one end of the vacuum arc-extinguishing tube and is in thermal communication with one end of the vacuum arc-extinguishing tube; and the second heat dissipation piece is arranged at the other end of the vacuum arc-extinguishing tube and is in thermal communication with the other end of the vacuum arc-extinguishing tube. The utility model discloses can strengthen the radiating effect.
Description
Technical Field
The utility model relates to an electrical equipment field, in particular to vacuum circuit breaker.
Background
Some vacuum circuit breakers have their vacuum arc tubes disposed in an enclosed area, which results in the heat generated by the vacuum arc tubes being difficult to dissipate during operation of the vacuum circuit breaker. Later, some other vacuum circuit breakers's casing is provided with the appearance chamber, and the appearance chamber opens to set up and communicates with the outside air, and the vacuum arc-extinguishing pipe is located the casing and is located and holds the intracavity, though this kind of vacuum circuit breaker's vacuum arc-extinguishing pipe adopts the open-type mode of setting up, and when vacuum circuit breaker worked, the heat that the vacuum arc-extinguishing pipe produced still can not in time dissipate, and the radiating effect still remains to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at one of current technical problem, for this reason, the utility model provides a vacuum circuit breaker can strengthen the radiating effect.
According to the utility model discloses a vacuum circuit breaker, include: the shell is provided with a containing cavity, and the containing cavity is arranged in an open manner and is communicated with the outside air; the vacuum arc extinguishing tube is arranged on the shell and is contained in the containing cavity; the first heat dissipation piece is arranged at one end of the vacuum arc-extinguishing tube and is in thermal communication with one end of the vacuum arc-extinguishing tube; and the second heat dissipation piece is arranged at the other end of the vacuum arc-extinguishing tube and is in thermal communication with the other end of the vacuum arc-extinguishing tube.
According to the utility model discloses a vacuum circuit breaker has following beneficial effect at least:
the utility model discloses a vacuum circuit breaker, because the heat that the vacuum arc-extinguishing pipe produced generally can be to its both ends conduction, the one end of vacuum arc-extinguishing pipe can carry out the heat exchange through first radiating piece and outside air, the other end of vacuum arc-extinguishing pipe can carry out the heat exchange through second radiating piece and outside air, this makes at vacuum circuit breaker during operation, can dissipate fast behind the heat conduction that the vacuum arc-extinguishing pipe produced to the both ends of vacuum arc-extinguishing pipe, reinforcing radiating effect.
According to some embodiments of the present invention, the first heat sink and the second heat sink each include a base portion and a plurality of fin portions, the base portion is located at one end of the vacuum arc-extinguishing tube and is in thermal communication with one end of the vacuum arc-extinguishing tube, or the base portion is located at the other end of the vacuum arc-extinguishing tube and is in thermal communication with the other end of the vacuum arc-extinguishing tube, a plurality of the fin portions are arranged at intervals in the base portion and each of the fin portions are all in thermal communication with the base portion.
According to some embodiments of the invention, a plurality of the fin portions are arranged side by side or radially arranged at the base portion.
According to some embodiments of the present invention, the vacuum arc-extinguishing tube upper end with first heat dissipation member thermal communication, the vacuum arc-extinguishing tube lower extreme with second heat dissipation member thermal communication, the thermal conductivity of first heat dissipation member is greater than the thermal conductivity of second heat dissipation member.
According to some embodiments of the utility model, the vacuum arc-extinguishing pipe has a plurality ofly, and is a plurality of the vacuum arc-extinguishing pipe interval set up in the casing, adjacent be provided with insulating barrier between the vacuum arc-extinguishing pipe.
According to some embodiments of the invention, the insulating barrier is connected with the housing detachably through a snap-fit structure.
According to some embodiments of the present invention, the clamping structure includes a buckle and a clamping groove, the buckle is located with one of the clamping groove on the insulating partition, the buckle is located with the other of the clamping groove on the housing, and the buckle can be clamped with the clamping groove.
According to some embodiments of the utility model, be provided with first terminal subassembly and second terminal subassembly on the casing, the stiff end of vacuum arc-extinguishing pipe with first terminal subassembly electric connection, the expansion end of vacuum arc-extinguishing pipe with second terminal subassembly electric connection, first terminal subassembly and second terminal subassembly all includes the terminal row that a plurality of stromatolites intervals set up.
According to the utility model discloses a some embodiments, first terminal subassembly and all be provided with temperature sensor on the second terminal subassembly, be provided with control module on the casing, control module with temperature sensor electric connection.
According to some embodiments of the utility model, still include spring energy storage operating device, spring energy storage operating device with the expansion end of vacuum arc-extinguishing pipe is connected in order to order about the expansion end of vacuum arc-extinguishing pipe with the stiff end contact or the separation of vacuum arc-extinguishing pipe.
Additional aspects and advantages of the invention 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 invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a structural view of a vacuum circuit breaker according to the present invention;
fig. 2 is another structural view of the vacuum circuit breaker of the present invention;
fig. 3 is a structural view of a first heat dissipating member;
fig. 4 is a structural view of a second heat dissipating member;
fig. 5 is a diagram illustrating a structure of a slot on a housing according to an embodiment of the present invention;
fig. 6 is a structural diagram of an insulating partition plate according to an embodiment of the present invention.
Reference numerals:
the heat dissipation structure comprises a shell 1, a vacuum arc extinguishing tube 2, a first heat dissipation piece 3, a second heat dissipation piece 4, a base portion 5, a fin portion 6, an insulating partition 7, a buckle 801, a clamping groove 802, a first terminal assembly 9, a second terminal assembly 10, a temperature sensor 11 and a control module 12.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the positional or orientational descriptions referred to, for example, the positional or orientational relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the positional or orientational relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
In the description of the present invention, a plurality of meanings are one or more, a plurality of meanings are two or more, and the terms greater than, smaller than, exceeding, etc. are understood as excluding the number, and the terms greater than, lower than, within, etc. are understood as including the number. If there is a description of first and second for the purpose of distinguishing technical features only, this is not to be understood as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of technical features indicated.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like 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 present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
According to the utility model discloses a vacuum circuit breaker, as shown in fig. 1-4, include: the shell 1 is provided with a containing cavity which is arranged in an open manner and is communicated with the outside air; the vacuum arc extinguishing tube 2 is arranged in the shell 1 and is contained in the containing cavity; the first heat dissipation piece 3 is arranged at one end of the vacuum arc-extinguishing tube 2 and is in thermal communication with one end of the vacuum arc-extinguishing tube 2; and the second heat radiating piece 4 is arranged at the other end of the vacuum arc-extinguishing tube 2 and is in thermal communication with the other end of the vacuum arc-extinguishing tube 2.
The utility model discloses a vacuum circuit breaker, because the heat that vacuum arc-extinguishing pipe 2 produced generally can be to its both ends conduction, vacuum arc-extinguishing pipe 2's one end can carry out the heat exchange through first heat-dissipating piece 3 and outside air, vacuum arc-extinguishing pipe 2's the other end can carry out the heat exchange through second heat-dissipating piece 4 and outside air, this makes at vacuum circuit breaker during operation, can dissipate fast behind the heat conduction that vacuum arc-extinguishing pipe 2 produced to vacuum arc-extinguishing pipe 2's both ends, reinforcing radiating effect.
In particular, the vacuum arc tube 2 may employ vacuum arc tube components conventional in the art.
In some embodiments of the present invention, as shown in fig. 3 and 4, the first heat sink 3 and the second heat sink 4 each include a base portion 5 and a plurality of fin portions 6, the base portion 5 is disposed at one end of the vacuum arc extinguishing tube 2 and is in thermal communication with one end of the vacuum arc extinguishing tube 2, or the base portion 5 is disposed at the other end of the vacuum arc extinguishing tube 2 and is in thermal communication with the other end of the vacuum arc extinguishing tube 2, the plurality of fin portions 6 are disposed at intervals on the base portion 5 and each fin portion 6 is in thermal communication with the base portion 5.
Specifically, after the heat conduction that vacuum arc-extinguishing tube 2 produced was to the one end of vacuum arc-extinguishing tube 2, can conduct to fin portion 6 through basal portion 5, the surface of fin portion 6 can carry out the heat exchange with the external air, the heat conduction that vacuum arc-extinguishing tube 2 produced is to behind the other end of vacuum arc-extinguishing tube 2, also can conduct to fin portion 6 through basal portion 5, the surface of fin portion 6 can carry out the heat exchange with the external air, so the configuration can increase substantially the heat radiating area of heat exchange, strengthen vacuum circuit breaker's radiating effect.
The adjacent fin portions 6 may be identical in shape and size or may be different in size.
In addition, in other embodiments, a heat dissipation groove may be formed by providing a recess on the base 5, and the heat dissipation area may also be increased, so as to enhance the heat dissipation effect.
In some embodiments of the present invention, as shown in fig. 2-4, a plurality of fin portions 6 are arranged side by side or radially arranged on the base portion 5.
Specifically, the fin portions 6 are arranged side by side to form convection heat dissipation, and the fin portions are arranged radially to form radiation heat dissipation, so that the heat dissipation rate of the vacuum arc extinguishing tube 2 can be further increased by the two modes.
In some embodiments of the present invention, as shown in fig. 2, the upper end of the vacuum arc-extinguishing tube 2 is thermally connected to the first heat-dissipating member 3, the lower end of the vacuum arc-extinguishing tube 2 is thermally connected to the second heat-dissipating member 4, the first heat-dissipating member 3 is made of copper, and the second heat-dissipating member 4 is made of aluminum.
Specifically, the configuration enables the heat generated by the vacuum arc-extinguishing tube 2 to be conducted to the two ends quickly, and because the heat tends to be conducted upwards, the heat conducted to the upper end of the vacuum arc-extinguishing tube 2 is more than the heat conducted to the lower end of the vacuum arc-extinguishing tube 2, so that the heat conductivity of the first heat-radiating member 3 is greater than that of the second heat-radiating member 4, the heat-radiating rate of the upper end of the vacuum arc-extinguishing tube 2 can be increased, and the heat-radiating effect is enhanced.
In some embodiments, the first heat dissipation element 3 is made of copper, the second heat dissipation element 4 is made of aluminum, the copper has high heat conductivity, the heat conductivity of the copper is greater than that of the aluminum, the first heat dissipation element 3 is made of copper, heat conducted to the upper end of the vacuum arc-extinguishing tube 2 can be dissipated in time, the aluminum also has good heat conductivity, the cost of the aluminum is low, and the second heat dissipation element 4 is made of aluminum, so that the heat dissipation requirement of the lower end of the vacuum arc-extinguishing tube 2 can be met, and the cost can be saved.
In some embodiments of the present invention, as shown in fig. 2, there are a plurality of vacuum arc-extinguishing pipes 2, and a plurality of vacuum arc-extinguishing pipes 2 are disposed at intervals in the housing 1, and an insulating partition 7 is disposed between adjacent vacuum arc-extinguishing pipes 2.
Specifically, adjacent vacuum arc-extinguishing pipe 2 can be separated to insulating barrier 7, and when one of them vacuum arc-extinguishing pipe 2 was impaired when meeting accident, insulating barrier 7 can avoid influencing with the influence that involves that other vacuum arc-extinguishing pipe 2 adjacent of this vacuum arc-extinguishing pipe 2 that meets accident received, and the holistic security performance of reinforcing vacuum circuit breaker can strengthen the structural strength of casing 1 to a certain extent simultaneously. The insulating spacer 7 is generally made of an insulating material.
In some embodiments of the present invention, as shown in fig. 5, the insulating partition 7 is detachably connected to the housing 1 by a snap structure.
Particularly, so the configuration can make insulating barrier 7 can play the safety protection effect when normally installing, can be convenient for overhaul vacuum circuit breaker when insulating barrier 7 dismantles simultaneously, avoids hindering the maintenance.
In some embodiments of the present invention, as shown in fig. 5 and fig. 6, the engaging structure includes a buckle 801 and a slot 802, one of the buckle 801 and the slot 802 is disposed on the insulating partition 7, the other of the buckle 801 and the slot 802 is disposed on the housing 1, and the buckle 801 can engage with the slot 802.
Specifically, when the buckle 801 is fastened with the clamping groove 802, the insulating partition 7 is mounted to the housing 1, and can normally play a role in safety protection; when the buckle 801 is clamped with the clamping groove 802, the insulating partition plate 7 can be detached, and convenience is brought to overhaul of the vacuum circuit breaker. In some alternative embodiments, the catch 801 may be replaced with a catch.
In some embodiments of the present invention, as shown in fig. 2, the housing 1 is provided with a first terminal assembly 9 and a second terminal assembly 10, the fixed end of the vacuum arc-extinguishing tube 2 is electrically connected to the first terminal assembly 9, the movable end of the vacuum arc-extinguishing tube 2 is electrically connected to the second terminal assembly 10, and the first terminal assembly 9 and the second terminal assembly 10 all include a plurality of terminal strips arranged at intervals.
Specifically, the first terminal assembly 9 and the second terminal assembly 10 can be electrically connected to an external power source or equipment, and the first terminal assembly 9 and the second terminal assembly 10 are configured to include a plurality of terminal rows arranged at intervals in a stacked manner, so that the cross-sectional area of the lap terminal can be increased, the current-carrying capacity of the circuit breaker can be increased, and the temperature rise value can be reduced. The terminal row generally adopts the copper bar terminal.
In some embodiments of the present invention, as shown in fig. 2, the first terminal assembly 9 and the second terminal assembly 10 are both provided with a temperature sensor 11, the housing 1 is provided with a control module 12, and the control module 12 is electrically connected to the temperature sensor 11.
Specifically, the temperature sensors can detect the temperatures of the first terminal assembly 9 and the second terminal assembly 10 and transmit the detection data to the control module 11, so that the control module 11 can monitor the temperatures of the terminal assemblies. The control module 11 may be a programmable logic controller or a micro-processing unit. The temperature sensor is preferably a thermal resistance sensor, which saves both installation space and cost.
In some embodiments of the present invention, the housing 1 is provided with a reinforcing rib, and the reinforcing rib is welded to the housing 1.
Specifically, the strengthening rib can strengthen the structural strength of casing 1, reduces the probability that casing 1 takes place unexpected deformation.
In some embodiments of the present invention, the vacuum arc extinguishing apparatus further comprises a spring energy storage operating mechanism (not shown in the figure), wherein the spring energy storage operating mechanism is connected to the movable end of the vacuum arc extinguishing pipe 2 to drive the movable end of the vacuum arc extinguishing pipe 2 to contact or separate from the fixed end of the vacuum arc extinguishing pipe 2.
Specifically, the spring energy storage operating mechanism can drive the vacuum arc-extinguishing tube 2 to perform a closing action and an opening action. The spring charging operating mechanism may be any conventional mechanism known in the art, such as a CT8 spring charging operating mechanism or a CT19 spring charging operating mechanism.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A vacuum interrupter, comprising:
the shell (1) is provided with a containing cavity, and the containing cavity is arranged in an open mode and is communicated with the outside air; the vacuum arc extinguishing tube (2) is arranged in the shell (1) and is contained in the containing cavity;
the first heat dissipation piece (3) is arranged at one end of the vacuum arc-extinguishing tube (2) and is in thermal communication with one end of the vacuum arc-extinguishing tube (2);
and the second heat dissipation piece (4) is arranged at the other end of the vacuum arc-extinguishing tube (2) and is in thermal communication with the other end of the vacuum arc-extinguishing tube (2).
2. A vacuum interrupter as claimed in claim 1, characterized in that: the first heat dissipation element (3) and the second heat dissipation element (4) both comprise a base portion (5) and a plurality of fin portions (6), the base portion (5) is arranged at one end of the vacuum arc extinguishing pipe (2) and is in thermal communication with one end of the vacuum arc extinguishing pipe (2), or the base portion (5) is arranged at the other end of the vacuum arc extinguishing pipe (2) and is in thermal communication with the other end of the vacuum arc extinguishing pipe (2), and the fin portions (6) are arranged at intervals on the base portion (5) and are all in thermal communication with the base portion (5).
3. A vacuum interrupter as claimed in claim 2, characterized in that: the plurality of fin units (6) are arranged side by side or radially arranged on the base (5).
4. A vacuum interrupter as claimed in claim 1, characterized in that: the upper end of the vacuum arc-extinguishing pipe (2) is in thermal communication with the first heat-radiating piece (3), the lower end of the vacuum arc-extinguishing pipe (2) is in thermal communication with the second heat-radiating piece (4), and the thermal conductivity of the first heat-radiating piece (3) is larger than that of the second heat-radiating piece (4).
5. A vacuum interrupter as claimed in claim 1, characterized in that: the vacuum arc-extinguishing tubes (2) are multiple, the vacuum arc-extinguishing tubes (2) are arranged on the shell (1) at intervals, and insulating partition plates (7) are arranged between the adjacent vacuum arc-extinguishing tubes (2).
6. Vacuum interrupter according to claim 5, characterized in that: the insulating partition plate (7) is detachably connected with the shell (1) through a clamping structure.
7. A vacuum interrupter as claimed in claim 6, characterized in that: the clamping structure comprises a buckle (801) and a clamping groove (802), one of the buckle (801) and the clamping groove (802) is arranged on the insulating partition plate (7), the other of the buckle (801) and the clamping groove (802) is arranged on the shell (1), and the buckle (801) can be clamped with the clamping groove (802).
8. A vacuum interrupter as claimed in claim 1, characterized in that: be provided with first terminal subassembly (9) and second terminal assembly (10) on casing (1), the stiff end of vacuum arc-extinguishing pipe (2) with first terminal subassembly (9) electric connection, the expansion end of vacuum arc-extinguishing pipe (2) with second terminal assembly (10) electric connection, first terminal subassembly (9) and second terminal assembly (10) all include the terminal row that a plurality of stromatolite intervals set up.
9. A vacuum interrupter as claimed in claim 8, wherein: the first terminal assembly (9) and the second terminal assembly (10) are provided with temperature sensors (11), the shell (1) is provided with a control module (12), and the control module (12) is electrically connected with the temperature sensors (11).
10. A vacuum interrupter as claimed in claim 1, characterized in that: still include spring energy storage operating device, spring energy storage operating device with the expansion end of vacuum arc-extinguishing pipe (2) is connected in order to order about the expansion end of vacuum arc-extinguishing pipe (2) with the stiff end contact or the separation of vacuum arc-extinguishing pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221863638.4U CN218384980U (en) | 2022-07-19 | 2022-07-19 | Vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221863638.4U CN218384980U (en) | 2022-07-19 | 2022-07-19 | Vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218384980U true CN218384980U (en) | 2023-01-24 |
Family
ID=84962811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221863638.4U Active CN218384980U (en) | 2022-07-19 | 2022-07-19 | Vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218384980U (en) |
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2022
- 2022-07-19 CN CN202221863638.4U patent/CN218384980U/en active Active
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