CN112635206B - Switch cabinet and static contact for switch cabinet - Google Patents
Switch cabinet and static contact for switch cabinet Download PDFInfo
- Publication number
- CN112635206B CN112635206B CN202011333767.8A CN202011333767A CN112635206B CN 112635206 B CN112635206 B CN 112635206B CN 202011333767 A CN202011333767 A CN 202011333767A CN 112635206 B CN112635206 B CN 112635206B
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- Prior art keywords
- contact
- diameter section
- small
- section
- bus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000003068 static effect Effects 0.000 title claims abstract description 17
- 238000005192 partition Methods 0.000 claims abstract description 13
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 238000003780 insertion Methods 0.000 claims description 13
- 230000037431 insertion Effects 0.000 claims description 13
- 230000013011 mating Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
- H01H1/38—Plug-and-socket contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/62—Heating or cooling of contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/64—Protective enclosures, baffle plates, or screens for contacts
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
Abstract
The invention relates to a switch cabinet and a static contact for the switch cabinet. The stationary contact for the switch cabinet comprises: the contact body comprises an inserting part and a fixing part, wherein the inserting part and the fixing part are both in cylindrical structures, and the inserting part is used for conducting electric connection with plum blossom contact guides on a contact arm of the circuit breaker; the fixed part comprises a large-diameter section and a small-diameter section, the transitional positions of the large-diameter section and the small-diameter section form a step structure, the small-diameter section is connected with a fixing nut in a threaded manner, and the small-diameter section is used for penetrating through a partition plate in the contact box and is matched with a step surface of the step structure through the fixing nut so as to fix the static contact in the contact box. According to the invention, the fixed contact can be fixed in the contact box without arranging an insert in the contact box, so that the manufacturing process of the contact box is simplified, and the contact body is convenient to install; and after the fixed contact is installed in the contact box, a part of the fixed contact is positioned outside the contact box, so that heat dissipation of the fixed contact is facilitated.
Description
Technical Field
The invention relates to a switch cabinet and a static contact for the switch cabinet.
Background
The handcart type switch cabinet is one of the most important parts in the power system, and has the characteristics of compact structure, small occupied area, easiness in overhauling and maintenance and the like. At present, the contact box and the fixed contact of the handcart type switch cabinet are both in sleeve forms.
The Chinese patent application with publication number CN110932154A discloses a switch cabinet, which comprises a contact box, wherein an insert is integrally cast in the contact box, a fixed hole is arranged at the bottom of a fixed contact, and the fixed contact is fixed in the contact box through the insert. The insert is cast in the contact box, so that the casting difficulty is increased, and the forming of the contact box is not facilitated; and the static contact is completely positioned in the contact box, which is unfavorable for heat dissipation of the static contact.
Disclosure of Invention
The invention aims to provide a fixed contact for a switch cabinet, which solves the technical problem that the fixed contact in the prior art is fixed in a contact box through an insert so as to be unfavorable for the forming of the contact box; the invention also aims to provide a switch cabinet.
In order to achieve the purpose, the technical scheme of the static contact for the switch cabinet is as follows:
the stationary contact for the switch cabinet comprises:
the contact body comprises an inserting part and a fixing part, wherein the inserting part and the fixing part are both in cylindrical structures, and the inserting part is used for conducting electric connection with plum blossom contact guides on a contact arm of the circuit breaker;
the fixed part comprises a large-diameter section and a small-diameter section, the transitional positions of the large-diameter section and the small-diameter section form a step structure, the small-diameter section is connected with a fixing nut in a threaded manner, and the small-diameter section is used for penetrating through a partition plate in the contact box and is matched with a step surface of the step structure through the fixing nut so as to fix the static contact in the contact box.
The beneficial effects are that: according to the invention, the fixed contact can be fixed in the contact box without arranging an insert in the contact box, so that the manufacturing process of the contact box is simplified, and the contact body is convenient to install; and after the fixed contact is installed in the contact box, a part of the fixed contact is positioned outside the contact box, so that heat dissipation of the fixed contact is facilitated.
Further, the small diameter section is located between the large diameter section and the insertion portion, and the outer diameter of the insertion portion is smaller than that of the small diameter section.
The beneficial effects are that: the design is not only convenient for processing the fixed contact, but also ensures that more parts of the fixed contact are positioned outside the contact box, thereby being beneficial to heat dissipation of the fixed contact.
Further, the end face of one end of the large-diameter section far away from the small-diameter section is provided with a large-diameter section radiating fin and/or a radiating hole.
The beneficial effects are that: the hot air flow at the plug-in position of the contact arm and the plug-in part moves towards the heat dissipation hole along the inner cavity of the contact body and is dissipated through the heat dissipation hole; and the large-diameter section radiating fin can increase the radiating area, so that the radiating efficiency is further improved.
Further, the large-diameter section is integrally formed with a bus connecting section, the bus connecting section is used for connecting a bus in a bus room, the bus connecting section is perpendicular to the large-diameter section, and bus radiating fins are arranged on the bus connecting section.
The beneficial effects are that: the bus radiating fin is arranged on the bus connecting section so as to improve the radiating capacity of the joint of the bus and the bus connecting section.
Further, a plurality of jackscrews are arranged on the fixing nut, and all jackscrews are arranged at intervals along the circumference of the fixing nut.
The beneficial effects are that: the fixed nut is prevented from loosening, so that the stability of the fixed contact in the contact box is ensured.
In order to achieve the above purpose, the technical scheme of the switch cabinet of the invention is as follows:
the switch cabinet comprises a breaker chamber and a bus chamber, wherein a breaker is arranged in the breaker chamber, a quincuncial contact finger is arranged on a contact arm of the breaker, and a contact box is arranged in the bus chamber;
a baffle plate and a fixed contact are arranged in the contact box, and the baffle plate is provided with a mounting hole;
the stationary contact includes:
the contact body comprises an inserting part and a fixing part, wherein the inserting part and the fixing part are both in cylindrical structures, and the inserting part is electrically connected with plum blossom contact guides on the contact arm;
the fixed part comprises a large-diameter section and a small-diameter section, the transitional positions of the large-diameter section and the small-diameter section form a step structure, the small-diameter section is connected with a fixing nut in a threaded manner, and the small-diameter section penetrates through the partition plate and is matched with the step surface of the step structure through the fixing nut so as to fix the static contact in the contact box.
The beneficial effects are that: according to the invention, the fixed contact can be fixed in the contact box without arranging an insert in the contact box, so that the manufacturing process of the contact box is simplified, and the contact body is convenient to install; and after the fixed contact is installed in the contact box, a part of the fixed contact is positioned outside the contact box, so that heat dissipation of the fixed contact is facilitated.
Further, the small diameter section is located between the large diameter section and the insertion portion, and the outer diameter of the insertion portion is smaller than that of the small diameter section.
The beneficial effects are that: the design is not only convenient for processing the fixed contact, but also ensures that more parts of the fixed contact are positioned outside the contact box, thereby being beneficial to heat dissipation of the fixed contact.
Further, the end face of one end of the large-diameter section far away from the small-diameter section is provided with a large-diameter section radiating fin and/or a radiating hole.
The beneficial effects are that: the hot air flow at the plug-in position of the contact arm and the plug-in part moves towards the heat dissipation hole along the inner cavity of the contact body and is dissipated through the heat dissipation hole; and the large-diameter section radiating fin can increase the radiating area, so that the radiating efficiency is further improved.
Further, the large-diameter section is integrally formed with a bus connecting section, the bus connecting section is used for connecting a bus in a bus room, the bus connecting section is perpendicular to the large-diameter section, and bus radiating fins are arranged on the bus connecting section.
The beneficial effects are that: the bus radiating fin is arranged on the bus connecting section so as to improve the radiating capacity of the joint of the bus and the bus connecting section.
Further, a plurality of jackscrews are arranged on the fixing nut, and all jackscrews are arranged at intervals along the circumference of the fixing nut.
The beneficial effects are that: the fixed nut is prevented from loosening, so that the stability of the fixed contact in the contact box is ensured.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment 1 of the present invention in which a stationary contact and a contact arm are inserted into each other;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a schematic view of the stationary contact of FIG. 1 assembled within a contact box;
in the figure: 11-contact arms; 12-an insertion portion; 13-small diameter section; 14-fixing the nut; 15-large diameter section; 16-plum blossom contact fingers; 17-a contact box; 18-a separator; 19-a bus connecting section; 20-heat dissipation holes; 21-large diameter section radiating fins; 22-jackscrews; 23-bus bar heat sink.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the invention, i.e., the embodiments described are merely some, but not all, of the embodiments of the invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
It is noted that relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, the terms "upper" and "lower" are based on the orientation and positional relationship shown in the drawings, and are merely for convenience of description of the invention, and do not denote that the device or component in question must have a particular orientation, and thus should not be construed as limiting the invention.
The features and capabilities of the present invention are described in further detail below in connection with the examples.
Embodiment 1 of the stationary contact for a switchgear of the present invention:
as shown in fig. 1 and 2, the static contact for the switch cabinet comprises a contact body, wherein the contact body comprises an insertion part 12, a small-diameter section 13, a large-diameter section 15 and a bus connecting section 19, and the insertion part 12, the small-diameter section 13, the large-diameter section 15 and the bus connecting section 19 are integrally formed, so that the contact body is convenient to process and stable in performance. Wherein the small diameter section 13 and the large diameter section 15 together constitute a fixed portion.
In this embodiment, the insertion portion 12, the small-diameter section 13 and the large-diameter section 15 are sequentially connected, and all of them are in a cylindrical structure; the mating part 12 is electrically connected to the quincuncial contact finger 16 on the contact arm 11.
As shown in fig. 2 and 3, the transition positions of the large-diameter section 15 and the small-diameter section 13 form a step structure, the small-diameter section 13 is connected with a fixing nut 14 in a threaded manner, and the small-diameter section 13 passes through a partition 18 in the contact box 17 and is matched with the step surface of the step structure through the fixing nut 14 so as to fix the static contact in the contact box 17.
In this embodiment, the fixing nut 14 is provided with four jackscrews 22, and all the jackscrews 22 are uniformly and alternately arranged along the circumference of the fixing nut 14, so that the fixing nut 14 is prevented from loosening, and the stability of the static contact in the contact box 17 is ensured. . In other embodiments, the number of jackscrews may be set as desired.
In this embodiment, the end face of the end of the large-diameter section 15 far away from the small-diameter section 13 is provided with the large-diameter section radiating fin 21 and the radiating hole 20, and the hot air flow at the plug-in position of the contact arm 11 and the plug-in portion 12 moves towards the radiating hole 20 along the inner cavity of the contact body and is dispersed through the radiating hole 20, meanwhile, the radiating area of the large-diameter section radiating fin 21 can be increased, and the radiating efficiency is further improved. In other embodiments, only large diameter section fins or only heat dissipating holes may be provided on an end face of the large diameter section remote from the small diameter section.
As shown in fig. 1 and 2, the bus connecting section 19 is perpendicular to the large-diameter section 15, a connecting hole is formed in the bus connecting section 19, and the bus connecting section 19 is connected with a bus in a bus chamber through the connecting hole; wherein, the bus bar connecting section 19 is also provided with bus bar radiating fins 23 to improve the radiating capacity of the connecting part of the bus bar and the bus bar connecting section 19.
When the fixed contact is specifically mounted on the contact box 17, the fixed nut 14 is screwed off from the small-diameter section 13, and then the insertion part 12 and the small-diameter section 13 are inserted from the right side of the partition 18; and then the fixing nut 14 is screwed from the left side of the partition 18 through a special tool to fix the static contact in the contact box 17, and then the jackscrew 22 is screwed to enable the jackscrew 22 to prop against the partition 18, so that the fixing nut 14 is prevented from loosening, the stability of the static contact in the contact box 17 is ensured, and the installation of the static contact is completed.
It should be noted that, a part of heat at the plugging position of the contact arm 11 and the plugging portion 12 is dissipated to the bus bar chamber through the inner cavity of the contact body and the heat dissipation hole 20, and the other part is dissipated to the contact box 17 through the plum blossom contact finger 16 and is dissipated from the left end of the contact box 17.
According to the invention, the fixed contact can be fixed in the contact box without arranging an insert in the contact box, so that the manufacturing process of the contact box is simplified, and the contact body is convenient to install; and after the fixed contact is installed in the contact box, a part of the fixed contact is positioned outside the contact box, so that heat dissipation of the fixed contact is facilitated.
Embodiment 2 of the stationary contact for a switchgear of the present invention:
the difference between this embodiment and the embodiment is that in embodiment 1, the small diameter section 13 is located between the large diameter section 15 and the insertion portion 12, the small diameter section 13, the large diameter section 15, and the bus bar connecting section 19 are integrally formed, and the stationary contact is integrally fitted from the right side of the separator 18 at the time of assembly. In this embodiment, the large diameter section is located between the small diameter section and the insertion portion, and the stationary contact is integrally fitted from the left side of the separator during assembly.
In the embodiment of the switch cabinet, the switch cabinet comprises a breaker chamber and a bus chamber, a breaker is arranged in the breaker chamber, a quincuncial contact finger is arranged on a contact arm of the breaker, a contact box is arranged in the bus chamber, a partition plate and a fixed contact are arranged in the contact box, the partition plate is provided with a mounting hole, and the fixed contact has the same structure as that described in the embodiment 1 or 2 of the fixed contact for the switch cabinet, and is not repeated herein.
The above description is only a preferred embodiment of the present invention, and the patent protection scope of the present invention is defined by the claims, and all equivalent structural changes made by the specification and the drawings of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The stationary contact for the switch cabinet is characterized by comprising:
the contact body comprises an inserting part (12) and a fixing part, wherein the inserting part (12) and the fixing part are of cylindrical structures, and the inserting part (12) is used for conducting electric connection with plum blossom contact guides on a contact arm (11) of the circuit breaker;
the fixed part comprises a large-diameter section (15) and a small-diameter section (13), the transitional positions of the large-diameter section (15) and the small-diameter section (13) form a step structure, a fixing nut (14) is connected to the small-diameter section (13) in a threaded manner, and the small-diameter section (13) is used for penetrating through a partition plate (18) in the contact box and is matched with the step surface of the step structure through the fixing nut (14) so as to fix the static contact in the contact box (17); the end face of one end of the large-diameter section (15) far away from the small-diameter section (13) is provided with a large-diameter section radiating fin (21) and/or a radiating hole (20); the large-diameter section (15) is integrally formed with a bus connecting section (19), the bus connecting section (19) is used for connecting buses in a bus chamber, the bus connecting section (19) is perpendicular to the large-diameter section (15), and bus radiating fins (23) are arranged on the bus connecting section (19).
2. The stationary contact for a switchgear according to claim 1, characterized in that the small-diameter section (13) is located between the large-diameter section (15) and the insertion portion (12), and the outer diameter of the insertion portion (12) is smaller than the outer diameter of the small-diameter section (13).
3. The stationary contact for a switchgear according to claim 1 or 2, characterized in that the fixing nut (14) is provided with a plurality of jackscrews (22), all jackscrews (22) being arranged at intervals along the circumference of the fixing nut (14).
4. The switch cabinet comprises a breaker chamber and a bus chamber, wherein a breaker is arranged in the breaker chamber, a quincuncial contact finger (16) is arranged on a contact arm (11) of the breaker, and a contact box (17) is arranged in the bus chamber;
a partition board (18) and a fixed contact are arranged in the contact box (17), and the partition board (18) is provided with a mounting hole;
the stationary contact includes:
the contact body comprises an inserting part (12) and a fixing part, wherein the inserting part (12) and the fixing part are of cylindrical structures, and the inserting part (12) is in conductive connection with plum blossom contact fingers (16) on the contact arm (11);
the fixing part comprises a large-diameter section (15) and a small-diameter section (13), a step structure is formed at the transition position of the large-diameter section (15) and the small-diameter section (13), a fixing nut (14) is connected to the small-diameter section (13) in a threaded mode, and the small-diameter section (13) penetrates through the partition plate (18) and is matched with the step surface of the step structure through the fixing nut (14) so as to fix the contact body in the contact box (17); the end face of one end of the large-diameter section (15) far away from the small-diameter section (13) is provided with a large-diameter section radiating fin (21) and/or a radiating hole (20); the large-diameter section (15) is integrally formed with a bus connecting section (19), the bus connecting section (19) is used for connecting buses in a bus chamber, the bus connecting section (19) is perpendicular to the large-diameter section (15), and bus radiating fins (23) are arranged on the bus connecting section (19).
5. The switchgear according to claim 4, characterized in that the small-diameter section (13) is situated between the large-diameter section (15) and the mating part (12), the outer diameter of the mating part (12) being smaller than the outer diameter of the small-diameter section (13).
6. The switch cabinet according to claim 4 or 5, characterized in that the fixing nut (14) is provided with a plurality of jackscrews (22), all jackscrews (22) being arranged at intervals along the circumference of the fixing nut (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011333767.8A CN112635206B (en) | 2020-11-24 | 2020-11-24 | Switch cabinet and static contact for switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011333767.8A CN112635206B (en) | 2020-11-24 | 2020-11-24 | Switch cabinet and static contact for switch cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112635206A CN112635206A (en) | 2021-04-09 |
| CN112635206B true CN112635206B (en) | 2024-01-23 |
Family
ID=75304092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011333767.8A Active CN112635206B (en) | 2020-11-24 | 2020-11-24 | Switch cabinet and static contact for switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112635206B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016078625A1 (en) * | 2014-11-17 | 2016-05-26 | 国家电网公司 | High voltage switch moving contact mechanism, and high voltage switch using same |
| EP3171381A1 (en) * | 2015-11-20 | 2017-05-24 | Siemens Aktiengesellschaft | Contact structure of a circuit breaker |
| WO2017133457A1 (en) * | 2016-02-05 | 2017-08-10 | 上海良信电器股份有限公司 | Wiring-improved structure for rotary double-breakpoint switch contact system |
| CN207459420U (en) * | 2017-08-18 | 2018-06-05 | 厦门理工学院 | A kind of high-current switch cabinet with excellent heat dispersion performance |
| CN109428282A (en) * | 2017-08-21 | 2019-03-05 | 平高集团有限公司 | Switchgear contact compartment and switchgear |
| CN110739632A (en) * | 2018-07-20 | 2020-01-31 | 平高集团有限公司 | kinds of contact box and switch cabinet using same |
| CN210120355U (en) * | 2019-06-13 | 2020-02-28 | 上海深泽电器有限公司 | Intelligent energy-saving high-low voltage control cabinet |
-
2020
- 2020-11-24 CN CN202011333767.8A patent/CN112635206B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016078625A1 (en) * | 2014-11-17 | 2016-05-26 | 国家电网公司 | High voltage switch moving contact mechanism, and high voltage switch using same |
| EP3171381A1 (en) * | 2015-11-20 | 2017-05-24 | Siemens Aktiengesellschaft | Contact structure of a circuit breaker |
| WO2017133457A1 (en) * | 2016-02-05 | 2017-08-10 | 上海良信电器股份有限公司 | Wiring-improved structure for rotary double-breakpoint switch contact system |
| CN207459420U (en) * | 2017-08-18 | 2018-06-05 | 厦门理工学院 | A kind of high-current switch cabinet with excellent heat dispersion performance |
| CN109428282A (en) * | 2017-08-21 | 2019-03-05 | 平高集团有限公司 | Switchgear contact compartment and switchgear |
| CN110739632A (en) * | 2018-07-20 | 2020-01-31 | 平高集团有限公司 | kinds of contact box and switch cabinet using same |
| CN210120355U (en) * | 2019-06-13 | 2020-02-28 | 上海深泽电器有限公司 | Intelligent energy-saving high-low voltage control cabinet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112635206A (en) | 2021-04-09 |
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