CN214203480U - Switch cabinet and static contact for switch cabinet - Google Patents
Switch cabinet and static contact for switch cabinet Download PDFInfo
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- CN214203480U CN214203480U CN202022743971.9U CN202022743971U CN214203480U CN 214203480 U CN214203480 U CN 214203480U CN 202022743971 U CN202022743971 U CN 202022743971U CN 214203480 U CN214203480 U CN 214203480U
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- 230000003068 static effect Effects 0.000 title claims abstract description 59
- 230000017525 heat dissipation Effects 0.000 claims abstract description 16
- 238000005192 partition Methods 0.000 claims abstract description 15
- 230000007704 transition Effects 0.000 claims abstract description 6
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 230000013011 mating Effects 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000003780 insertion Methods 0.000 description 13
- 230000037431 insertion Effects 0.000 description 13
- 230000009286 beneficial effect Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 9
- 241000722921 Tulipa gesneriana Species 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 1
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Abstract
The utility model relates to a cubical switchboard and static contact for cubical switchboard. Static contact for cubical switchboard includes: the contact body comprises a plug-in part and a fixed part, wherein the plug-in part and the fixed part are of cylindrical structures, and the plug-in part is used for being in conductive connection with a contact arm on the circuit breaker; the fixed part comprises a large-diameter section and a small-diameter section, a step structure is formed at the transition position of the large-diameter section and the small-diameter section, a fixing nut is connected to the small-diameter section in a threaded mode, and the small-diameter section is used for penetrating through a partition plate in the contact box and 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 utility model can fix the static contact in the contact box without arranging an insert in the contact box, thereby not only simplifying the manufacturing process of the contact box, but also facilitating the installation of the contact body; and after the static contact is installed in the contact box, one part of the static contact is positioned outside the contact box, so that the heat dissipation of the static contact is facilitated.
Description
Technical Field
The utility model relates to a cubical switchboard and static contact for cubical switchboard.
Background
The handcart type switch cabinet is one of the most important parts in a power system, and has the characteristics of compact structure, small occupied area, easiness in overhauling and maintenance and the like. At present, a contact box and a fixed contact of a handcart type switch cabinet are both in a sleeve form.
For example, the chinese patent application with application publication No. CN110932154A discloses a switch cabinet, which includes a contact box, an insert is integrally cast in the contact box, a fixing hole is formed at the bottom of a static contact, and the static contact is fixed in the contact box through the insert. The insert is poured in the contact box, so that the pouring 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 not beneficial to the heat dissipation of the static contact.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a static contact for a switch cabinet, which solves the technical problem that the static contact in the prior art is fixed in a contact box through an insert so as to be not beneficial to the forming of the contact box; an object of the utility model is also to provide a cubical switchboard.
In order to achieve the above object, the utility model discloses the technical scheme of static contact for cubical switchboard is:
static contact for cubical switchboard includes:
the contact body comprises a plug-in part and a fixed part, wherein the plug-in part and the fixed part are of cylindrical structures, and the plug-in part is used for being in conductive connection with a contact arm on the circuit breaker;
the fixed part comprises a large-diameter section and a small-diameter section, a step structure is formed at the transition position of the large-diameter section and the small-diameter section, a fixing nut is connected to the small-diameter section in a threaded mode, and the small-diameter section is used for penetrating through a partition plate in the contact box and 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: the utility model can fix the static contact in the contact box without arranging an insert in the contact box, thereby not only simplifying the manufacturing process of the contact box, but also facilitating the installation of the contact body; and after the static contact is installed in the contact box, one part of the static contact is positioned outside the contact box, so that the heat dissipation of the static contact is facilitated.
Further, the small-diameter section is located between the large-diameter section and the inserting and matching part, and the outer diameter of the inserting and matching part is smaller than that of the small-diameter section.
The beneficial effects are that: due to the design, the static contact is convenient to process, and more parts of the static contact are positioned outside the contact box, so that the heat dissipation of the static contact is facilitated.
Furthermore, the end face of one end, far away from the small diameter section, of the large diameter section is provided with large diameter section radiating fins and/or radiating holes.
The beneficial effects are that: the hot air flow at the insertion position of the contact arm and the insertion part moves to the heat dissipation holes along the inner cavity of the contact body and is dissipated through the heat dissipation holes; and the large-diameter section radiating fins can increase the radiating area and further improve the radiating efficiency.
Furthermore, the bus connecting section is integrally formed on the large-diameter section and used for connecting buses in the bus chamber, 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 connecting section is provided with the bus radiating fins, so that the heat radiating capacity of the joint of the bus and the bus connecting section is improved.
Furthermore, a plurality of jackscrews are arranged on the fixing nut, and all the jackscrews are arranged at intervals along the circumferential direction of the fixing nut.
The beneficial effects are that: the fixed nut is prevented from loosening, so that the stability of the static contact in the contact box is ensured.
In order to achieve the above purpose, the utility model discloses the technical scheme of cubical switchboard is:
the switch cabinet comprises a breaker chamber and a bus chamber, wherein the breaker chamber is internally provided with a breaker, the breaker is provided with a contact arm, and the bus chamber is internally provided with a contact box;
a partition plate and a static contact are arranged in the contact box, and the partition plate is provided with a mounting hole;
the static contact includes:
the contact body comprises an inserting part and a fixing part, wherein the inserting part and the fixing part are of cylindrical structures, and the inserting part is in conductive connection with the contact arm;
the fixed part comprises a large-diameter section and a small-diameter section, a step structure is formed at the transition position of the large-diameter section and the small-diameter section, a fixing nut is connected to the small-diameter section in a threaded mode, 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: the utility model can fix the static contact in the contact box without arranging an insert in the contact box, thereby not only simplifying the manufacturing process of the contact box, but also facilitating the installation of the contact body; and after the static contact is installed in the contact box, one part of the static contact is positioned outside the contact box, so that the heat dissipation of the static contact is facilitated.
Further, the small-diameter section is located between the large-diameter section and the inserting and matching part, and the outer diameter of the inserting and matching part is smaller than that of the small-diameter section.
The beneficial effects are that: due to the design, the static contact is convenient to process, and more parts of the static contact are positioned outside the contact box, so that the heat dissipation of the static contact is facilitated.
Furthermore, the end face of one end, far away from the small diameter section, of the large diameter section is provided with large diameter section radiating fins and/or radiating holes.
The beneficial effects are that: the hot air flow at the insertion position of the contact arm and the insertion part moves to the heat dissipation holes along the inner cavity of the contact body and is dissipated through the heat dissipation holes; and the large-diameter section radiating fins can increase the radiating area and further improve the radiating efficiency.
Furthermore, the bus connecting section is integrally formed on the large-diameter section and used for connecting buses in the bus chamber, 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 connecting section is provided with the bus radiating fins, so that the heat radiating capacity of the joint of the bus and the bus connecting section is improved.
Furthermore, a plurality of jackscrews are arranged on the fixing nut, and all the jackscrews are arranged at intervals along the circumferential direction of the fixing nut.
The beneficial effects are that: the fixed nut is prevented from loosening, so that the stability of the static contact in the contact box is ensured.
Drawings
Fig. 1 is a schematic structural view of an embodiment 1 of the switch cabinet of the present invention, in which a fixed contact and a contact arm are inserted;
FIG. 2 is a cross-sectional view of FIG. 1;
fig. 3 is a schematic structural view of the stationary contact of fig. 1 assembled in a contact box;
in the figure: 11-a contact arm; 12-a mating portion; 13-small diameter section; 14-a fixing nut; 15-large diameter section; 16-plum blossom contact fingers; 17-a contact box; 18-a separator; 19-bus bar connection section; 20-heat dissipation holes; 21-large diameter section radiating fins; 22-top thread; 23-bus bar heat sink.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as 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 present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be 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. Also, 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 an … …" does not exclude the presence of other identical 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 only for convenience of description of the present invention, and do not indicate that the referred device or component must have a specific orientation, and thus, should not be construed as limiting the present invention.
The features and properties of the present invention are described in further detail below with reference to examples.
The utility model discloses embodiment 1 of static contact for cubical switchboard:
as shown in fig. 1 and 2, the stationary contact for the switch cabinet includes a contact body, the contact body includes an insertion portion 12, a small diameter section 13, a large diameter section 15 and a bus bar connection section 19, and the insertion portion 12, the small diameter section 13, the large diameter section 15 and the bus bar connection 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 part 12, the small diameter section 13, and the large diameter section 15 are connected in sequence, and all of the three are cylindrical structures; the plug-in part 12 is electrically conductively connected to the tulip contact finger 16 on the contact arm 11. In other embodiments, an annular contact finger may be disposed on an inner wall of the mating portion, and the contact arm is inserted into the mating portion to achieve conductive connection between the mating portion and the contact arm.
As shown in fig. 2 and 3, the transition position of the large diameter section 15 and the small diameter section 13 forms a step structure, the small diameter section 13 is connected with a fixing nut 14 by screw threads, and the small diameter section 13 passes through a partition plate 18 in the contact box 17 and is matched with a step surface of the step structure by the fixing nut 14 to fix the static contact in the contact box 17.
In this embodiment, the fixing nut 14 is provided with four jackscrews 22, all the jackscrews 22 are uniformly arranged along the circumference of the fixing nut 14 at intervals, 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 surface of the end of the large diameter section 15 far away from the small diameter section 13 is provided with a large diameter section heat sink 21 and a heat sink 20, the hot air flow at the insertion position of the contact arm 11 and the insertion part 12 moves to the heat sink 20 along the inner cavity of the contact body and is dissipated through the heat sink 20, and meanwhile, the large diameter section heat sink 21 can increase the heat dissipation area and further improve the heat dissipation efficiency. In other embodiments, only the large-diameter section cooling fins or only the heat dissipation holes may be provided on the end surface of the large-diameter section far away from the small-diameter section.
As shown in fig. 1 and 2, the bus bar connecting section 19 is perpendicular to the large diameter section 15, a connecting hole is arranged on the bus bar connecting section 19, and the bus bar connecting section 19 is connected with the bus bar in the bus bar chamber through the connecting hole; the bus connecting section 19 is further provided with a bus radiating fin 23 to improve the heat radiating capacity of the joint of the bus and the bus connecting section 19.
When the static contact is specifically installed on the contact box 17, the fixing nut 14 is firstly screwed off from the small-diameter section 13, and then the inserting part 12 and the small-diameter section 13 are inserted from the right side of the partition plate 18; then, the fixed nut 14 is screwed from the left side of the partition plate 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 be jacked on the partition plate 18, so that the fixed nut 14 is prevented from being loosened, 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 the heat at the insertion point of the contact arm 11 and the insertion 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 tulip contact finger 16 and is dissipated from the left end of the contact box 17.
The utility model can fix the static contact in the contact box without arranging an insert in the contact box, thereby not only simplifying the manufacturing process of the contact box, but also facilitating the installation of the contact body; and after the static contact is installed in the contact box, one part of the static contact is positioned outside the contact box, so that the heat dissipation of the static contact is facilitated.
The utility model discloses switch cabinet is with embodiment 2 of static contact:
the present embodiment is different from the embodiment in that in embodiment 1, the small diameter section 13 is located between the large diameter section 15 and the insertion and fitting portion 12, the small diameter section 13, the large diameter section 15, and the bus bar connecting section 19 are integrally formed, and the static contact is integrally installed from the right side of the partition 18 during assembly. In this embodiment, the large diameter section is located between the small diameter section and the insertion part, and the static contact is integrally installed from the left side of the partition plate during assembly.
The utility model discloses the embodiment of cubical switchboard, the cubical switchboard in this embodiment includes circuit breaker room and generating line room, and the indoor circuit breaker that installs of circuit breaker, circuit breaker have and touch the arm, and the indoor contact box that installs of generating line is equipped with baffle and static contact in the contact box, and the baffle has the mounting hole, this static contact and above-mentioned embodiment 1 or 2 of static contact for cubical switchboard the structure the same, no longer describe here any more.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. Static contact for cubical switchboard, its characterized in that includes:
the contact comprises a contact body, a contact body and a contact body, wherein the contact body comprises an inserting part (12) and a fixing part, the inserting part (12) and the fixing part are both of cylindrical structures, and the inserting part (12) is used for being in conductive connection with a contact arm (11) on a circuit breaker;
the fixed 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) 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).
2. Stationary contact for a switchgear cabinet according to claim 1, wherein the small diameter section (13) is located between the large diameter section (15) and the mating portion (12), and the outer diameter of the mating portion (12) is smaller than the outer diameter of the small diameter section (13).
3. The stationary contact for a switch cabinet according to claim 2, wherein a large diameter section heat sink (21) and/or a heat sink hole (20) is disposed on an end surface of the large diameter section (15) away from the small diameter section (13).
4. The stationary contact for the switch cabinet as claimed in claim 1, 2 or 3, wherein the large diameter section (15) is integrally formed with a bus connecting section (19), the bus connecting section (19) is used for connecting a bus in a bus chamber, the bus connecting section (19) is perpendicular to the large diameter section (15), and the bus connecting section (19) is provided with a bus heat sink (23).
5. The stationary contact for a switch cabinet according to claim 1, 2 or 3, wherein a plurality of jackscrews (22) are disposed on the fixing nut (14), and all of the jackscrews (22) are spaced apart along a circumferential direction of the fixing nut (14).
6. The switch cabinet comprises a circuit breaker chamber and a bus chamber, wherein the circuit breaker is arranged in the circuit breaker chamber and is provided with a contact arm (11), and a contact box (17) is arranged in the bus chamber;
a partition plate (18) and a static contact are arranged in the contact box (17), and the partition plate (18) is provided with a mounting hole;
the static contact includes:
the contact comprises a contact body, a contact body and a contact body, wherein the contact body comprises an inserting part (12) and a fixing part, the inserting part (12) and the fixing part are both of cylindrical structures, and the inserting part (12) is in conductive connection with a contact arm (11);
the fixed 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 a 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 a contact box (17).
7. The switchgear cabinet according to claim 6, wherein the small diameter section (13) is 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).
8. The switch cabinet according to claim 7, characterized in that the end surface of the large diameter section (15) far away from the small diameter section (13) is provided with large diameter section cooling fins (21) and/or heat dissipation holes (20).
9. The switch cabinet according to claim 6, 7 or 8, characterized in that the large diameter section (15) is integrally formed with a bus bar connecting section (19), the bus bar connecting section (19) is used for connecting a bus bar in a bus bar chamber, the bus bar connecting section (19) is perpendicular to the large diameter section (15), and the bus bar connecting section (19) is provided with a bus bar cooling fin (23).
10. The switch cabinet according to claim 6, 7 or 8, characterized in that a plurality of jackscrews (22) are arranged on the fixing nut (14), and all the jackscrews (22) are arranged at intervals along the circumference of the fixing nut (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022743971.9U CN214203480U (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 |
|---|---|---|---|
| CN202022743971.9U CN214203480U (en) | 2020-11-24 | 2020-11-24 | Switch cabinet and static contact for switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214203480U true CN214203480U (en) | 2021-09-14 |
Family
ID=77647390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022743971.9U Active CN214203480U (en) | 2020-11-24 | 2020-11-24 | Switch cabinet and static contact for switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214203480U (en) |
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2020
- 2020-11-24 CN CN202022743971.9U patent/CN214203480U/en active Active
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