CN112635205A - Static contact for switch cabinet and switch cabinet - Google Patents
Static contact for switch cabinet and switch cabinet Download PDFInfo
- Publication number
- CN112635205A CN112635205A CN202011329506.9A CN202011329506A CN112635205A CN 112635205 A CN112635205 A CN 112635205A CN 202011329506 A CN202011329506 A CN 202011329506A CN 112635205 A CN112635205 A CN 112635205A
- Authority
- CN
- China
- Prior art keywords
- contact
- section
- diameter section
- switch cabinet
- arm
- 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.)
- Pending
Links
Images
Classifications
-
- 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
- H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/58—Electric connections to or between contacts; Terminals
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Breakers (AREA)
Abstract
The invention relates to a static contact for a switch cabinet and the switch cabinet. Static contact for cubical switchboard includes: the contact body is fixed in a contact box of the switch cabinet and comprises an insertion section, the insertion section is of a cylindrical structure and is used for inserting a contact arm on a circuit breaker, and an annular contact finger installation groove is formed in the inner wall surface of the insertion section; the annular contact finger is arranged in the contact finger mounting groove and is used for being in conductive contact with a contact arm on the circuit breaker; and the inserting section radiating fins are arranged on the outer peripheral surface of the inserting section and correspond to the positions of the annular contact fingers. The static contact and the contact arm are directly inserted and matched, so that the contact arm and the static contact can be centered better, the contact arm and the static contact can be in better contact, and the through-current capacity is ensured; the insertion section radiating fins are arranged on the outer peripheral surface of the insertion section corresponding to the annular contact fingers, so that natural heat dissipation is realized, the cost is reduced, local discharge sound in the switch cabinet cannot be covered, and the timely discovery of insulation faults is facilitated.
Description
Technical Field
The invention relates to a static contact for a switch cabinet and the switch cabinet.
Background
Along with the distribution network structure is more and more complicated for the load of system is bigger and bigger, and the temperature rise of the static contact in the contact box in the heavy current switch cabinet and the contact arm contact position on the circuit breaker also need to satisfy the requirement.
At present, a high-power heat dissipation fan is generally additionally arranged on a switch cabinet to meet the requirement of temperature rise. However, once a cooling fan fails and is not found in time, a serious temperature rise fault is caused, and an insulation fault is caused; moreover, the high-power heat dissipation fan can generate large noise in the operation process, can cover local discharge sound in the switch cabinet, and is not beneficial to timely finding of insulation faults. In addition, the high-power heat dissipation fan has high cost, which results in high manufacturing cost of the switch cabinet.
Disclosure of Invention
The invention aims to provide a fixed contact for a switch cabinet, which aims to solve the technical problem that the switch cabinet in the prior art has higher manufacturing cost due to heat dissipation of a heat dissipation fan; the invention also aims to provide the switch cabinet.
In order to achieve the purpose, the technical scheme of the static contact for the switch cabinet is as follows:
static contact for cubical switchboard includes:
the contact body is fixed in a contact box of the switch cabinet and comprises an insertion section, the insertion section is of a cylindrical structure and is used for inserting a contact arm on a circuit breaker, and an annular contact finger installation groove is formed in the inner wall surface of the insertion section;
the annular contact finger is arranged in the contact finger mounting groove and is used for being in conductive contact with a contact arm on the circuit breaker;
and the inserting section radiating fins are arranged on the outer peripheral surface of the inserting section and correspond to the positions of the annular contact fingers.
The beneficial effects are that: the fixed contact and the contact arm are directly inserted and matched, and compared with the method of inserting through the plum-blossom-shaped contact finger, the centering of the contact arm and the fixed contact can be better realized, so that the contact arm and the fixed contact are better contacted, and the through-current capacity is ensured; the insertion section radiating fins are arranged at the positions, corresponding to the annular contact fingers, on the outer peripheral surface of the insertion section, so that natural heat dissipation is realized, the cost is reduced, local discharge sound in the switch cabinet cannot be covered, and timely discovery of insulation faults is facilitated. In addition, through improving the through-current capacity and increasing the heat dissipation and combining together, guaranteed that the heat that touches arm and static contact grafting department and produce can in time spill, reduce the probability that cubical switchboard insulation fault appears.
Further, the contact body comprises a fixing part, the fixing part is provided with a contact large-diameter section and a contact small-diameter section, a step structure is formed at the transition position of the contact large-diameter section and the contact small-diameter section, a fixing nut is connected to the contact small-diameter section in a threaded mode, and the fixing nut is matched with a step surface of the step structure to fix the contact body in the contact box.
The beneficial effects are that: by the design, the contact body 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 installation of the contact body is facilitated.
Furthermore, the static contact for the switch cabinet comprises a heat dissipation device, the heat dissipation device comprises a ring body and a plug section cooling fin, the heat dissipation device is detachably fixed on the plug section through the ring body, and the small-diameter contact section is located between the large-diameter contact section and the plug section.
The beneficial effects are that: the static contact is convenient to be installed.
Further, the outer diameter of the inserting section is smaller than that of the contact small-diameter section.
The beneficial effects are that: the transition positions of the plug section and the contact small-diameter section form a step structure, and the ring body is pressed against the step surface of the step structure when being screwed so as to ensure the stability of the heat dissipation device.
Furthermore, a large-diameter section radiating fin and/or a radiating hole are/is arranged on the end face of one end, far away from the small-diameter section of the contact, of the large-diameter section of the contact.
The beneficial effects are that: the hot air flow at the insertion position of the contact arm and the insertion section 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, a bus connecting section is integrally formed on the contact large-diameter section and used for connecting buses in a bus chamber, the bus connecting section is perpendicular to the contact 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, be equipped with the external screw thread on inserting the outer peripheral face of joining in marriage the section, be equipped with the internal thread on the medial surface of ring body, ring body spiral assembly is on inserting the section of joining in marriage to realize that heat abstractor can be dismantled to fix on inserting the section of joining in marriage.
The beneficial effects are that: due to the design, the heat dissipation device can be conveniently disassembled and assembled on the inserting and assembling section, and the assembling efficiency is improved.
Furthermore, a plurality of inserting section radiating fins are arranged at intervals along the circumferential direction of the inserting section, a radiating channel is formed between any two adjacent inserting section radiating fins, and the radiating channel extends along the axial direction of the inserting section.
The beneficial effects are that: the heat dissipation channel extends along the axial direction of the insertion section so as to facilitate the heat flow to be dissipated along the axial direction of the contact box.
In order to realize the purpose, the technical scheme of the switch cabinet is as follows:
cubical switchboard, including circuit breaker room and generating line room, 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 installs the static contact in the contact box, the static contact includes:
the contact body is fixed in a contact box of the switch cabinet and comprises an insertion section, the insertion section is of a cylindrical structure and is used for inserting a contact arm on a circuit breaker, and an annular contact finger installation groove is formed in the inner wall surface of the insertion section;
the annular contact finger is arranged in the contact finger mounting groove and is used for being in conductive contact with a contact arm on the circuit breaker;
and the inserting section radiating fins are arranged on the outer peripheral surface of the inserting section and correspond to the positions of the annular contact fingers.
The beneficial effects are that: the fixed contact and the contact arm are directly inserted and matched, and compared with the method of inserting through the plum-blossom-shaped contact finger, the centering of the contact arm and the fixed contact can be better realized, so that the contact arm and the fixed contact are better contacted, and the through-current capacity is ensured; the insertion section radiating fins are arranged at the positions, corresponding to the annular contact fingers, on the outer peripheral surface of the insertion section, so that natural heat dissipation is realized, the cost is reduced, local discharge sound in the switch cabinet cannot be covered, and timely discovery of insulation faults is facilitated. In addition, through improving the through-current capacity and increasing the heat dissipation and combining together, guaranteed that the heat that touches arm and static contact grafting department and produce can in time spill, reduce the probability that cubical switchboard insulation fault appears.
Further, the contact body comprises a fixing part, the fixing part is provided with a contact large-diameter section and a contact small-diameter section, a step structure is formed at the transition position of the contact large-diameter section and the contact small-diameter section, a fixing nut is connected to the contact small-diameter section in a threaded mode, and the fixing nut is matched with a step surface of the step structure to fix the contact body in the contact box.
The beneficial effects are that: by the design, the contact body 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 installation of the contact body is facilitated.
Furthermore, the static contact for the switch cabinet comprises a heat dissipation device, the heat dissipation device comprises a ring body and a plug section cooling fin, the heat dissipation device is detachably fixed on the plug section through the ring body, and the small-diameter contact section is located between the large-diameter contact section and the plug section.
The beneficial effects are that: the static contact is convenient to be installed.
Further, the outer diameter of the inserting section is smaller than that of the contact small-diameter section.
The beneficial effects are that: the transition positions of the plug section and the contact small-diameter section form a step structure, and the ring body is pressed against the step surface of the step structure when being screwed so as to ensure the stability of the heat dissipation device.
Furthermore, a large-diameter section radiating fin and/or a radiating hole are/is arranged on the end face of one end, far away from the small-diameter section of the contact, of the large-diameter section of the contact.
The beneficial effects are that: the hot air flow at the insertion position of the contact arm and the insertion section 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, a bus connecting section is integrally formed on the contact large-diameter section and used for connecting buses in a bus chamber, the bus connecting section is perpendicular to the contact 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, be equipped with the external screw thread on inserting the outer peripheral face of joining in marriage the section, be equipped with the internal thread on the medial surface of ring body, ring body spiral assembly is on inserting the section of joining in marriage to realize that heat abstractor can be dismantled to fix on inserting the section of joining in marriage.
The beneficial effects are that: due to the design, the heat dissipation device can be conveniently disassembled and assembled on the inserting and assembling section, and the assembling efficiency is improved.
Furthermore, a plurality of inserting section radiating fins are arranged at intervals along the circumferential direction of the inserting section, a radiating channel is formed between any two adjacent inserting section radiating fins, and the radiating channel extends along the axial direction of the inserting section.
The beneficial effects are that: the heat dissipation channel extends along the axial direction of the insertion section so as to facilitate the heat flow to be dissipated along the axial direction of the contact box.
Further, it includes touches arm major diameter section and touches arm path section to touch the arm, touches arm path section and is used for joining in marriage the section grafting cooperation with inserting of static contact, touches the grafting end of arm path section and is equipped with the chamfer structure.
The beneficial effects are that: the inserting end of the small-diameter section of the contact arm is provided with a chamfer structure, so that the small-diameter section of the contact arm can be inserted into the inserting section.
Drawings
Fig. 1 is a schematic structural view of a fixed contact and a contact arm of a switch cabinet according to embodiment 1 of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
fig. 3 is a schematic structural view of the static contact and the contact arm in fig. 1 assembled in a contact box;
in the figure: 11-a contact arm; 12-a mating segment; 13-contact minor diameter section; 14-a fixing nut; 15-contact major diameter section; 16-ring-shaped contact fingers; 17-a ring body; 18-inserting section cooling fins; 19-bus bar connection section; 20-heat dissipation holes; 21-large diameter section radiating fins; 22-top thread; 23-bus bar heat sink fins; 24-a contact box; 25-a separator.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of 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 present invention, 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 derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within 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.
Embodiment 1 of the stationary contact for a switchgear of the present invention:
as shown in fig. 1 and 2, the stationary contact for the switch cabinet includes a contact body, the contact body includes an insertion section 12, a contact small diameter section 13, a contact large diameter section 15, and a bus connection section 19, and the insertion section 12, the contact small diameter section 13, the contact large diameter section 15, and the bus connection section 19 are integrally formed, so that the contact body is convenient to process and stable in performance. Wherein the contact small diameter section 13 and the contact large diameter section 15 together constitute a fixed portion.
In this embodiment, the insertion section 12, the contact small diameter section 13, and the contact large diameter section 15 are connected in sequence, and all of the three sections are of a cylindrical structure; the inserting section 12 is used for inserting the contact arm 11 on the circuit breaker, an annular contact finger installation groove is formed in the inner wall surface of the inserting section 12, an annular contact finger 16 is installed in the contact finger installation groove, and after the contact arm 11 is inserted into the inserting section 12, the annular contact finger 16 is in conductive contact with the contact arm 11.
In order to improve the current capacity and reduce the heat generation, in this embodiment, two annular contact fingers 16 are arranged at intervals along the axial direction of the insertion section 12, and the two annular contact fingers 16 are large-capacity watchband contact fingers so as to satisfy the large current flow of 2500-. In other embodiments, the annular contact fingers may be spring contact fingers, and the number of the annular contact fingers may be one or more than three according to the through-current requirement.
As shown in fig. 2, in order to improve the heat dissipation capability of the insertion position of the contact arm 11 and the insertion section 12, a heat dissipation device is arranged on the outer peripheral surface of the insertion section 12, and the heat dissipation device corresponds to the position of the annular contact finger 16; the heat dissipation device comprises a ring body 17 and insertion section cooling fins 18, the heat dissipation device is detachably connected to the insertion section 12 through the ring body 17, specifically, external threads are arranged on the outer peripheral surface of the insertion section 12, internal threads are arranged on the inner side surface of the ring body 17, and the ring body 17 is spirally assembled on the insertion section 12 so as to realize that the heat dissipation device is detachably connected to the insertion section 12; because the outer diameter of the plug section 12 is smaller than the outer diameter of the contact small-diameter section 13, a step structure is formed at the transition position of the plug section 12 and the contact small-diameter section 13, and the ring body 17 is pressed against the step surface of the step structure when screwed, so that the stability of the heat dissipation device is ensured.
In this embodiment, the plurality of insertion section cooling fins 18 are arranged at intervals along the circumferential direction of the insertion section 12, and a heat dissipation channel is formed between any two adjacent insertion section cooling fins 18 and extends along the axial direction of the insertion section 12, so that the hot air flow is conveniently dissipated along the axial direction of the contact box.
As shown in fig. 2 and 3, the transition positions of the contact large-diameter section 15 and the contact small-diameter section 13 form a step structure, a fixing nut 14 is connected to the contact small-diameter section 13 in a threaded manner, and the fixing nut 14 is matched with the step surface of the step structure to fix the contact body in the contact box 24. Wherein, the fixing nut 14 is provided with a jackscrew 22.
In this embodiment, the end surface of the end of the large-diameter section 15, which is 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 section 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 heat sink fins or only the heat dissipation holes may be provided on the end surface of the large-diameter section of the contact away from the small-diameter section of the contact.
As shown in fig. 1 and 2, the bus bar connecting section 19 is perpendicular to the contact large-diameter section 15, a connecting hole is formed in the bus bar connecting section 19, and the bus bar connecting section 19 is connected with a 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.
In this embodiment, touch arm 11 including touch the arm major diameter section with touch the arm minor diameter section, touch the arm minor diameter section and be used for inserting the cooperation of joining in marriage with inserting section 12, touch the grafting end of arm minor diameter section and be equipped with the chamfer structure, be favorable to touching the arm minor diameter section and insert and join in marriage in section 12.
When the static contact is specifically installed on the contact box 24, the heat dissipation device is firstly screwed off from the insertion section 12, and then the insertion section 12 is inserted from the right side of the partition plate 25; then, the fixed nut 14 is screwed from the left side of the partition plate 25 through a special tool to fix the static contact in the contact box 24, and then the jackscrew 22 is screwed to enable the jackscrew 22 to be jacked on the partition plate 25, so that the fixed nut 14 is prevented from being loosened, and the stability of the static contact in the contact box 24 is ensured; and then, the heat dissipation device is screwed on the inserting section 12 again, so that 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 section 12 is dissipated to the bus bar chamber through the inner cavity of the contact body and the heat dissipation hole 20, and another part is dissipated to the contact box 24 through the heat dissipation fins 18 of the insertion section on the heat dissipation device and is dissipated from the left end of the contact box 24.
The fixed contact and the contact arm are directly inserted and matched, and compared with the method of inserting through the plum-blossom-shaped contact finger, the centering of the contact arm and the fixed contact can be better realized, so that the contact arm and the fixed contact are better contacted, and the through-current capacity is ensured; the insertion section radiating fins are arranged at the positions, corresponding to the annular contact fingers, on the outer peripheral surface of the insertion section, so that natural heat dissipation is realized, the cost is reduced, local discharge sound in the switch cabinet cannot be covered, and timely discovery of insulation faults is facilitated. In addition, through improving the through-current capacity and increasing the heat dissipation and combining together, guaranteed that the heat that touches arm and static contact grafting department and produce can in time spill, reduce the probability that cubical switchboard insulation fault appears.
Embodiment 2 of the stationary contact for a switchgear of the present invention:
the difference between the present embodiment and the embodiment is that in embodiment 1, the static contact includes a plug-in section 12, a contact small diameter section 13, and a contact large diameter section 15, a fixing nut 14 is connected to the contact small diameter section 13 in a threaded manner, the static contact is fixed in a contact box 24 through the fixing nut 14, and the plug-in section 12 is used for inserting the contact arm. In this embodiment, the static contact only includes the section of joining in marriage of inserting, and the bottom of the section of joining in marriage of inserting is equipped with the fixed orifices, and the contact box is embedded to be equipped with the inserts, and the static contact passes through the fix with screw on the inserts to realize fixing in the contact box.
Embodiment 3 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 contact small diameter section 13 is located between the contact large diameter section 15 and the insertion section 12, the heat dissipation device is detachably fixed on the insertion section 12, the contact small diameter section 13, the contact large diameter section 15 and the bus connecting section 19 are integrally formed, and the static contact is integrally installed from the right side of the partition 25 during assembly. In this embodiment, the heat dissipation device is integrally formed on the plug-in section, the contact large-diameter section is detachably connected with the contact small-diameter section, when the static contact is assembled, the plug-in section and the contact small-diameter section are assembled from the left side of the partition, and the contact large-diameter section is assembled from the right side of the partition.
Embodiment 4 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 contact small diameter section 13 is located between the contact large diameter section 15 and the insertion section 12, the heat dissipation device is detachably fixed on the insertion section 12, the contact small diameter section 13, the contact large diameter section 15 and the bus connecting section 19 are integrally formed, and the static contact is integrally installed from the right side of the partition 25 during assembly. In this embodiment, the contact major diameter section is located between the contact minor diameter section and the insertion section, and the static contact is integrally installed from the left side of the partition plate during assembly.
Embodiment 5 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 outer diameter of the mating section 12 is smaller than the outer diameter of the contact small diameter section 13, the transition position between the mating section 12 and the contact small diameter section 13 forms a step structure, and the ring body 17 presses against the step surface of the step structure when screwing. In this embodiment, the outer diameter of the plug section is equal to the outer diameter of the contact small-diameter section, an annular protrusion is arranged between the plug section and the contact small-diameter section, and the ring body is pressed against the side surface of one side, facing the ring body, of the annular protrusion when the ring body is screwed.
Embodiment 6 of the stationary contact for a switchgear of the present invention:
the present embodiment is different from the embodiment in that in embodiment 1, an external thread is provided on the outer circumferential surface of the insertion section 12, an internal thread is provided on the inner side surface of the ring body 17, and the ring body 17 is spirally assembled on the insertion section 12 to detachably fix the heat dissipation device on the insertion section 12. In this embodiment, insert and be equipped with fixation nut on the section of joining in marriage equally, during the assembly, establish the heat abstractor cover on inserting the section of joining in marriage earlier, then with heat abstractor through inserting the removable fixing of fixation nut on joining in marriage the section on inserting the section.
Embodiment 7 of the stationary contact for a switchgear of the present invention:
the present embodiment is different from the embodiment in that in embodiment 1, a plurality of the plug section cooling fins 18 are arranged at intervals along the circumferential direction of the plug section 12, and a cooling channel is formed between any two adjacent plug section cooling fins 18, and the cooling channel extends along the axial direction of the plug section 12. In this embodiment, a plurality of insertion section cooling fins are arranged at intervals along the axial direction of the insertion section, a heat dissipation channel is formed between any two adjacent insertion section cooling fins, and the heat dissipation channel extends along the circumferential direction of the insertion section.
In the embodiment of the switch cabinet, the switch cabinet in the embodiment includes a circuit breaker chamber and a bus chamber, the circuit breaker is installed in the circuit breaker chamber, the circuit breaker has a contact arm, a contact box is installed in the bus chamber, and a static contact is installed in the contact box, and the static contact has the same structure as any one of embodiments 1 to 7 of the static contact for the switch cabinet, and is not described herein again. The contact arm comprises a contact arm large-diameter section and a contact arm small-diameter section, the contact arm small-diameter section is used for being in plug-in fit with the plug-in section of the static contact, and the plug-in end of the contact arm small-diameter section is provided with a chamfer structure.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (10)
1. Static contact for cubical switchboard, its characterized in that includes:
the contact body is used for being fixed in a contact box (24) of a switch cabinet and comprises an insertion section (12), the insertion section (12) is of a cylindrical structure and used for inserting a contact arm (11) on a circuit breaker, and an annular contact finger installation groove is formed in the inner wall surface of the insertion section (12);
the annular contact finger (16) is arranged in the contact finger mounting groove and is used for being in conductive contact with a contact arm (11) on the circuit breaker;
and the inserting and matching section cooling fins (18) are arranged on the outer peripheral surface of the inserting and matching section (12) and correspond to the positions of the annular contact fingers (16).
2. The static contact for the switch cabinet as claimed in claim 1, wherein the contact body comprises a fixing portion, the fixing portion has a contact large-diameter section (15) and a contact small-diameter section (13), a step structure is formed at a transition position of the contact large-diameter section (15) and the contact small-diameter section (13), a fixing nut (14) is connected to the contact small-diameter section (13) in a threaded manner, and the fixing nut (14) is matched with a step surface of the step structure to fix the contact body in the contact box (24).
3. The stationary contact for switch cabinets according to claim 2, wherein the stationary contact for switch cabinets comprises a heat sink, the heat sink comprises a ring body (17) and the heat sink (18) of the mating segment, the heat sink is detachably fixed on the mating segment (12) through the ring body (17), and the small diameter section (13) of the contact is located between the large diameter section (15) of the contact and the mating segment (12).
4. The stationary contact for a switchgear cabinet as claimed in claim 3, wherein the outside diameter of the mating section (12) is smaller than the outside diameter of the contact small diameter section (13).
5. The stationary contact for switch cabinets according to claim 3 or 4, 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) of the contact, which is far away from the small diameter section (13) of the contact.
6. The stationary contact for the switch cabinet as claimed in any one of claims 2 to 4, wherein a bus bar connecting section (19) is integrally formed on the contact large diameter section (15), 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 contact large diameter section (15), and a bus bar heat sink (23) is disposed on the bus bar connecting section (19).
7. The stationary contact for a switch cabinet according to any one of claims 2 to 4, wherein an external thread is provided on an outer circumferential surface of the insertion section (12), an internal thread is provided on an inner side surface of the ring body (17), and the ring body (17) is spirally assembled on the insertion section (12) to detachably fix the heat sink on the insertion section (12).
8. The stationary contact for a switch cabinet according to any one of claims 1 to 4, wherein a plurality of the heat dissipating fins (18) are arranged at intervals along a circumferential direction of the mating segment (12), and a heat dissipating channel is formed between any two adjacent heat dissipating fins (18) and extends along an axial direction of the mating segment (12).
9. The switch cabinet comprises a circuit breaker chamber and a bus chamber, wherein a circuit breaker is installed in the circuit breaker chamber, the circuit breaker is provided with a contact arm (11), a contact box (24) is installed in the bus chamber, and a static contact is installed in the contact box (24), and the static contact is the static contact for the switch cabinet as claimed in any one of claims 1 to 8.
10. The switch cabinet according to claim 9, wherein the contact arm (11) comprises a contact arm large-diameter section and a contact arm small-diameter section, the contact arm small-diameter section is used for being in plug-in fit with the plug-in section (12) of the static contact, and the plug-in end of the contact arm small-diameter section is provided with a chamfer structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011329506.9A CN112635205A (en) | 2020-11-24 | 2020-11-24 | Static contact for switch cabinet and switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011329506.9A CN112635205A (en) | 2020-11-24 | 2020-11-24 | Static contact for switch cabinet and switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112635205A true CN112635205A (en) | 2021-04-09 |
Family
ID=75303758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011329506.9A Pending CN112635205A (en) | 2020-11-24 | 2020-11-24 | Static contact for switch cabinet and switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112635205A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114360821A (en) * | 2022-01-21 | 2022-04-15 | 平高集团有限公司 | Isolation sleeve |
| EP4235721A1 (en) * | 2022-02-28 | 2023-08-30 | Siemens Aktiengesellschaft | Switching device for electric power distribution |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3533057A1 (en) * | 1985-09-17 | 1987-03-26 | Swf Auto Electric Gmbh | Switch having an adjustable resistor for controlling the power consumption of electrical loads on motor vehicles |
| JPH09115568A (en) * | 1995-10-18 | 1997-05-02 | Fuji Electric Co Ltd | Energizing contact |
| JPH1069838A (en) * | 1996-06-03 | 1998-03-10 | Omron Corp | Trigger switch |
| CN201219183Y (en) * | 2008-07-02 | 2009-04-08 | 厦门华电开关有限公司 | Large current and medium voltage switch cabinet |
| DE102009036807A1 (en) * | 2009-08-10 | 2011-03-03 | Tyco Electronics Amp Gmbh | Electrical plug connector arrangement has electrical plug with contact and mating plug, where mating plug has pressing unit |
| CN201893269U (en) * | 2010-11-09 | 2011-07-06 | 河南平高电气股份有限公司 | High-voltage disconnector contact component |
| CN102263378A (en) * | 2010-05-26 | 2011-11-30 | 沈阳飞驰电气设备有限公司 | 4,000A contact box |
| CN202696036U (en) * | 2012-08-03 | 2013-01-23 | 厦门华电开关有限公司 | Contact box device of switch device |
| US20130048476A1 (en) * | 2011-08-24 | 2013-02-28 | Hyundai Heavy Industries Co., Ltd. | Dual structured contact for switchgear and switchgear having the same |
| US20130075238A1 (en) * | 2011-09-22 | 2013-03-28 | Abb Technology Ag | Contact Arm Assembly For Switchgear Circuit Breaker Having Improved Cooling Fins And Contact Fingers To Maximize Heat Rejection |
| CN105590762A (en) * | 2016-01-27 | 2016-05-18 | 山东泰开隔离开关有限公司 | Heavy-current plug-in type conductive contact used for outdoor high-voltage disconnecting switch |
| CN205670507U (en) * | 2016-06-04 | 2016-11-02 | 广东必达电器有限公司 | A kind of trigger installation of band heat sinking function |
| CN108010789A (en) * | 2017-12-13 | 2018-05-08 | 上海天灵开关厂有限公司 | A kind of high current direct action type three-station with radiator structure |
| 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 |
-
2020
- 2020-11-24 CN CN202011329506.9A patent/CN112635205A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3533057A1 (en) * | 1985-09-17 | 1987-03-26 | Swf Auto Electric Gmbh | Switch having an adjustable resistor for controlling the power consumption of electrical loads on motor vehicles |
| JPH09115568A (en) * | 1995-10-18 | 1997-05-02 | Fuji Electric Co Ltd | Energizing contact |
| JPH1069838A (en) * | 1996-06-03 | 1998-03-10 | Omron Corp | Trigger switch |
| CN201219183Y (en) * | 2008-07-02 | 2009-04-08 | 厦门华电开关有限公司 | Large current and medium voltage switch cabinet |
| DE102009036807A1 (en) * | 2009-08-10 | 2011-03-03 | Tyco Electronics Amp Gmbh | Electrical plug connector arrangement has electrical plug with contact and mating plug, where mating plug has pressing unit |
| CN102263378A (en) * | 2010-05-26 | 2011-11-30 | 沈阳飞驰电气设备有限公司 | 4,000A contact box |
| CN201893269U (en) * | 2010-11-09 | 2011-07-06 | 河南平高电气股份有限公司 | High-voltage disconnector contact component |
| US20130048476A1 (en) * | 2011-08-24 | 2013-02-28 | Hyundai Heavy Industries Co., Ltd. | Dual structured contact for switchgear and switchgear having the same |
| US20130075238A1 (en) * | 2011-09-22 | 2013-03-28 | Abb Technology Ag | Contact Arm Assembly For Switchgear Circuit Breaker Having Improved Cooling Fins And Contact Fingers To Maximize Heat Rejection |
| CN202696036U (en) * | 2012-08-03 | 2013-01-23 | 厦门华电开关有限公司 | Contact box device of switch device |
| CN105590762A (en) * | 2016-01-27 | 2016-05-18 | 山东泰开隔离开关有限公司 | Heavy-current plug-in type conductive contact used for outdoor high-voltage disconnecting switch |
| CN205670507U (en) * | 2016-06-04 | 2016-11-02 | 广东必达电器有限公司 | A kind of trigger installation of band heat sinking function |
| CN108010789A (en) * | 2017-12-13 | 2018-05-08 | 上海天灵开关厂有限公司 | A kind of high current direct action type three-station with radiator structure |
| 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114360821A (en) * | 2022-01-21 | 2022-04-15 | 平高集团有限公司 | Isolation sleeve |
| CN114360821B (en) * | 2022-01-21 | 2024-04-09 | 平高集团有限公司 | Isolation sleeve |
| EP4235721A1 (en) * | 2022-02-28 | 2023-08-30 | Siemens Aktiengesellschaft | Switching device for electric power distribution |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112635205A (en) | Static contact for switch cabinet and switch cabinet | |
| JP6115791B2 (en) | Electronic device including capacitor in circuit board holder, and method of manufacturing electronic device | |
| CN201054472Y (en) | Electrical connection device for gas insulation metal closed switch device | |
| CN103616538A (en) | Combined module for plug electric connection of intelligent electricity meter | |
| CN109561611B (en) | Power supply with heat insulation function | |
| WO2017006587A1 (en) | Terminal connection structure and server power supply system provided with same | |
| CN214203476U (en) | Static contact for switch cabinet and switch cabinet | |
| CN202696036U (en) | Contact box device of switch device | |
| CN214203480U (en) | Switch cabinet and static contact for switch cabinet | |
| CN105702645A (en) | MOS transistor radiating structure and electric vehicle controller | |
| CN108418002B (en) | Wiring device and air conditioner | |
| CN203630180U (en) | Combination module for intelligent electricity meter plugging electric connection | |
| CN113820522B (en) | Electric quantity metering joint junction box | |
| CN112635206B (en) | Switch cabinet and static contact for switch cabinet | |
| CN205723504U (en) | A kind of metal-oxide-semiconductor radiator structure and controller for electric vehicle | |
| CN110767482B (en) | Gas-insulated metal-enclosed switch | |
| CN204045888U (en) | Quick electrical connection device | |
| CN102034643A (en) | Electrode for switch and vacuum switch, and method of manufacturing electrode for switch or vacuum switch | |
| CN218551269U (en) | Atomizer with spring structure | |
| CN219696795U (en) | Inductive switch joint structure for kitchen wardrobe lamp | |
| CN216055537U (en) | Male seat heat dissipation structure, female seat heat dissipation structure and connector combined heat dissipation structure | |
| CN214753422U (en) | Contact assembly for high-voltage switch equipment | |
| CN220367861U (en) | Double-circuit breaker combined electrical apparatus | |
| CN213184030U (en) | Primary connector | |
| CN114664574B (en) | Disconnecting switch and static contact assembly of disconnecting switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |