CN215681244U - Integral contact box - Google Patents
Integral contact box Download PDFInfo
- Publication number
- CN215681244U CN215681244U CN202120817325.4U CN202120817325U CN215681244U CN 215681244 U CN215681244 U CN 215681244U CN 202120817325 U CN202120817325 U CN 202120817325U CN 215681244 U CN215681244 U CN 215681244U
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- contact
- contact box
- insulating
- integral
- clamping ring
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Abstract
The utility model provides an integral contact box, which comprises a contact box shell, wherein the contact box shell comprises three phases, each phase comprises a contact column barrel, the contact column barrels of each phase are fixedly connected through a mounting plate, contact rows are arranged in the contact column barrels, the inner wall of each contact column barrel is provided with an inner ring bulge, the rear side of each inner ring bulge is provided with an insulating fixing clamping ring, 2 right-angle stop blocks are symmetrically arranged in each insulating fixing clamping ring, and an insulating fixing clamping ring notch is arranged on the same side of each right-angle stop block; when the device is installed, the contact row is inserted from the gap of the insulating fixing clamping ring and is fixed on the insulating fixing clamping ring after rotating. The three phases of the contact box are poured into a whole, switch cabinets with different current grades can use the same integral contact box shell, only the stainless steel gasket, the rubber pad, the contact bar and the insulating sleeve inside need to be replaced, and the three phases are integrated, so that the contact box has higher bending resistance compared with a split type contact box, and the capacity of resisting high short-circuit current of a system is enhanced.
Description
Technical Field
The utility model belongs to the technical field of medium-pressure complete equipment, and particularly relates to an integral contact box.
Background
The contact box is an important insulating part applied to a 10-35 kV power system switch cabinet and mainly plays a role in insulation, isolation and connection transition. The switch cabinets with different current grades use split type contact boxes with different specifications and models, the types of the contact boxes are more, and the split type contact boxes are easy to break when the short-circuit current is high (more than 40 kA).
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model is realized by the following technical scheme:
an integral contact box comprises a contact box shell, wherein the contact box shell comprises three phases, each phase comprises a contact column, the contact column of each phase is fixedly connected through a mounting plate, a contact row is mounted in the contact column, the inner wall of the contact column is provided with an inner ring bulge, the rear side of the inner ring bulge is provided with an insulating fixing clamping ring, 2 right-angle stop blocks are symmetrically arranged in the insulating fixing clamping ring, and an insulating fixing clamping ring notch is arranged on the same side of each right-angle stop block; when the device is installed, the contact row is inserted from the gap of the insulating fixing clamping ring and is fixed on the insulating fixing clamping ring after rotating.
Furthermore, symmetrical contact row notches are formed in the contact row, and fixed insulating fixing clamping rings are installed at the contact row notches.
Furthermore, the distance between the gaps of the insulating fixing clamping ring is matched with the width of the contact row, and the diameter length of the insulating fixing clamping ring is matched with the width between the notches of the contact row on the contact row.
Furthermore, a detachable insulating sleeve is arranged on the front side of the inner ring protrusion, and an insulating sleeve notch matched with the contact row is formed in the insulating sleeve.
Furthermore, the rear side of the insulating fixing clamping ring is provided with a stainless steel gasket, and a stainless steel gasket notch is further formed in the stainless steel gasket.
Furthermore, rubber pads are arranged between the inner ring bulges and the insulating sleeve and between the insulating fixing clamping ring and the inner ring bulges.
Furthermore, be equipped with the mounting panel boss on the mounting panel, be equipped with a plurality of outstanding protruding circles on the mounting panel boss, insulating sleeve is encircleed to the protruding circle.
Furthermore, the convex ring is concentric with the contact column barrel of the contact box shell.
Further, the stainless steel washer, the insulating fixing clamping ring, the inner ring protrusion, the rubber pad and the insulating sleeve are connected through a fixing bolt.
Furthermore, the contact box shell is integrally cast by adopting epoxy resin.
The utility model has the beneficial effects that:
the utility model discloses an integral contact box, which is formed by pouring three phases into a whole, switch cabinets with different current grades can use the same integral contact box shell, only stainless steel washers, rubber pads, contact bars and insulating sleeves in the integral contact box are required to be replaced, and the three phases are integrated.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a cross-sectional perspective view of the present invention;
FIG. 3 is a cross-sectional view of the present invention;
FIG. 4 is a mating view of the contact rows and insulating retainer collar of the present invention;
FIG. 5 is a schematic view of the contact array of the present invention inserted into the insulating retaining collar in an initial state;
figure 6 is a schematic view of the contact array of the present invention rotated 90 in the insulating retainer collar;
wherein: 1. a contact box housing; 1-1, inner ring bulges; 1-2, mounting a plate; 1-3 mounting a plate boss; 1-4, convex ring; 2. an insulating sleeve; 2-1, insulating sleeve notch; 3. a rubber pad; 4. a contact row; 5. an insulating fixing collar; 5-1, a right-angle stop block; 5-2, insulating fixing collar gaps; 6. a stainless steel washer; 7. fixing the bolt; 8. an inner cavity.
Detailed Description
The preferred mechanisms and methods of motion realization of the present invention are further described below in conjunction with the figures and the detailed description.
As shown in fig. 1-6, an integral contact box comprises a contact box shell 1, wherein the contact box shell 1 comprises three phases, each phase comprises a contact column, a contact row 4 is arranged in a cylinder of the contact column of each phase, and the cylinders of each phase are fixedly connected through a mounting plate 1-2. The three-phase contact column barrel and the mounting plate 1-2 are integrated and are integrally cast by epoxy resin.
The structure of each phase of the integral contact box is consistent, and a phase is taken as an example for specific description:
the inner wall of the contact column barrel is provided with an inner ring bulge 1-1, the front side of the inner ring bulge 1-2 is provided with a detachable insulating sleeve 2, and an insulating sleeve notch 2-1 which is matched with the contact row 4 is arranged in the insulating sleeve 2 and is used for fixing one end of the contact row 4. And symmetrical contact row notches are formed in the left side and the right side of the other end of the contact row 4.
For convenience of description, one side of the contact box shell 1, on which the insulating sleeve notch 2-1 is installed, is a front side, and the opposite side is a rear side, and the rear side of the contact box shell 1 is the cavity 8. An insulating fixing clamping ring 5 is arranged on the rear side of the inner ring protrusion 1-1, 2 right-angle stop blocks 5-1 are symmetrically arranged in the insulating fixing clamping ring 5, and the distance between the vertical edges and the distance between the horizontal edges of the 2 right-angle stop blocks 5-1 are the same as the thickness of the contact row 4, so that the contact row can be inserted between the two right-angle stop blocks 5-1. And insulating fixed collar notches 5-2 are arranged on the same side of each right-angle stop block 5-1, 2 insulating fixed collar notches 5-2 are on the same straight line, the distance between the insulating fixed collar notches 5-2 is consistent with the width of the contact row 4, and the diameter length of the insulating fixed collar 5 is consistent with the width between the contact row notches on the contact row 4.
Thus, when installed, the contact row 4 is inserted through the insulating retaining collar notch 5-2 and, when the contact row slot coincides with the insulating retaining collar notch 5-2, the contact row 4 is rotated 90 ° until the right angle block 5-1 blocks the contact row 4, at which point the contact row slot contacts the inner diameter of the insulating retaining collar 5 and the contact row 4 is retained by the insulating retaining collar 5, as shown in fig. 4-6.
The rear side of the insulating fixing clamping ring 5 is provided with a stainless steel gasket 6 for installing a fixing screw 7, and the stainless steel gasket 6 is also provided with a stainless steel gasket notch for the contact row 4 to pass through. After the contact row 4 is installed, the fixing screw 7 sequentially penetrates through the stainless steel washer 6, the insulating fixing collar 5, the inner ring bulge 1-1 and the insulating sleeve 2, so that all parts are assembled on the contact box.
Mounting holes are formed in the mounting plate 1-2 on the outer side of the contact column barrel and are used for being fixed on a switch cabinet; the mounting plate 1-2 is also provided with a mounting plate boss 1-3 for keeping away the position of the mounting hole so as to facilitate mounting; the mounting plate boss 1-3 is also provided with a plurality of protruding convex rings 1-4, and the convex rings 1-4 are concentric with the contact column barrel of the contact box shell 1 and surround the insulating sleeve 2 for increasing creepage distance.
The three-phase integrated contact box shell 1 is integrally poured by epoxy resin, so that the electromagnetic eddy current phenomenon is avoided, higher bending resistance is realized, and the capacity of resisting high short-circuit current of a system is enhanced.
When the cubical switchboard current changes, need not change 1 contact box casing, only need change the width and the thickness of 4 contact rows according to the current, carry out corresponding change with the notch on 2 insulation support, 5 insulating fixed rand, 6 stainless steel washers according to 4 specifications, can be used for the cubical switchboard of different electric currents size.
The integral three-phase contact box is high in integral installation accuracy, the three-phase contacts are at the same height, the error is almost 0, contact asymmetry caused by deviation of the heights of the contacts of the circuit breaker is caused, contact resistance is increased, and therefore the temperature rise phenomenon is well improved. If the rated current of the system changes, only the insulating sleeve 2, the contact row 4 and the insulating fixing collar 5 need to be replaced, and the contact box shell 1 can be kept unchanged.
When the contact box is installed, the contact row 4 is clamped on the insulating fixing clamping ring 5, the front side of the insulating fixing clamping ring 5 is sleeved with the rubber pad 3, the rear side of the insulating fixing clamping ring is sleeved with the stainless steel gasket 6, the contact row 4 extends into the cavity 8 of the contact box shell 1 and penetrates through the front side of the cavity, the front side of the inner ring protrusion 1-1 of the contact box shell 1 is sleeved with the rubber pad 3 and the insulating sleeve 2, corresponding threaded fixing holes are formed in the rubber pad and the insulating sleeve, and after the installation holes of all parts are aligned, all parts are fixed together by using the fixing bolt 7 from the rear of the stainless steel gasket 6, and then the whole contact box is installed completely.
Finally, it should be noted that: although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.
Claims (10)
1. An integral contact box comprises a contact box shell (1), wherein the contact box shell (1) comprises three phases, each phase comprises a contact column barrel, the contact column barrels of each phase are fixedly connected through a mounting plate (1-2), and a contact row (4) is installed in each contact column barrel, and the integral contact box is characterized in that inner ring protrusions (1-1) are arranged on the inner wall of each contact column barrel, an insulating fixing clamping ring (5) is arranged on the rear side of each inner ring protrusion (1-1), 2 right-angle stop blocks (5-1) are symmetrically arranged in each insulating fixing clamping ring (5), and an insulating fixing clamping ring notch (5-2) is arranged on the same side of each right-angle stop block (5-1); when the device is installed, the contact row (4) is inserted from the gap (5-2) of the insulating fixing clamping ring and is fixed on the insulating fixing clamping ring (5) after rotating.
2. The integral contact box of claim 1, wherein the contact row (4) is provided with symmetrical contact row notches, and a fixed insulating fixing collar (5) is mounted at the contact row notches.
3. The integral contact box of claim 2, characterized in that the distance between the insulation fixing collar notches (5-2) is adapted to the width of the contact row (4), and the diameter length of the insulation fixing collar (5) is adapted to the width between the contact row notches on the contact row (4).
4. The integral contact box according to claim 1, characterized in that the front side of the inner ring bulge (1-1) is provided with a detachable insulating sleeve (2), and the insulating sleeve (2) is provided with an insulating sleeve notch (2-1) corresponding to the contact row (4).
5. The integral contact box according to claim 4, wherein the rear side of the insulating fixing collar (5) is provided with a stainless steel washer (6), and the stainless steel washer (6) is further provided with a stainless steel washer notch.
6. The integral contact box of claim 5, wherein rubber pads (3) are arranged between the inner ring bulge (1-1) and the insulating sleeve (2) and between the insulating fixing collar (5) and the inner ring bulge (1-1).
7. The integral contact box according to claim 6, wherein the mounting plate (1-2) is provided with a mounting plate boss (1-3), the mounting plate boss (1-3) is provided with a plurality of protruding convex rings (1-4), and the convex rings (1-4) surround the insulating sleeve (2).
8. The integral contact box according to claim 7, characterized in that said collars (1-4) are concentric with the contact column shaft of the contact box housing (1).
9. The integral contact box of claim 5, wherein the stainless steel washer (6), the insulating fixing collar (5), the inner ring protrusion (1-1), the rubber pad (3) and the insulating sleeve (2) are connected through a fixing bolt (7).
10. The integral contact box according to claim 1, wherein the contact box shell (1) is integrally cast by epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120817325.4U CN215681244U (en) | 2021-04-16 | 2021-04-16 | Integral contact box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120817325.4U CN215681244U (en) | 2021-04-16 | 2021-04-16 | Integral contact box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215681244U true CN215681244U (en) | 2022-01-28 |
Family
ID=79970750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120817325.4U Active CN215681244U (en) | 2021-04-16 | 2021-04-16 | Integral contact box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215681244U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023207206A1 (en) * | 2022-04-25 | 2023-11-02 | 镇江市丹高电器有限公司 | Current transformer comprising built-in contact box |
-
2021
- 2021-04-16 CN CN202120817325.4U patent/CN215681244U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023207206A1 (en) * | 2022-04-25 | 2023-11-02 | 镇江市丹高电器有限公司 | Current transformer comprising built-in contact box |
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