CN201360101Y - Push-type low-voltage switch cabinet - Google Patents
Push-type low-voltage switch cabinet Download PDFInfo
- Publication number
- CN201360101Y CN201360101Y CNU2008201577177U CN200820157717U CN201360101Y CN 201360101 Y CN201360101 Y CN 201360101Y CN U2008201577177 U CNU2008201577177 U CN U2008201577177U CN 200820157717 U CN200820157717 U CN 200820157717U CN 201360101 Y CN201360101 Y CN 201360101Y
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- China
- Prior art keywords
- switch cabinet
- current transformer
- copper bar
- low
- tension switch
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- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a push-type low-voltage switch cabinet, which comprises a handcart-type breaker for pushing with hands and a current transformer, wherein the current transformer is a wall bushing current transformer, one end of the current transformer is arranged in the switch cabinet, and the other end thereof is arranged outside the switch cabinet; one end of the current transformer, which is arranged in the switch cabinet, is connected with an upper contact box by a copper bar, the lower part of the upper contact box is fixedly provided with a lower contact box, and the lower contact box is connected with a cable by the copper bar; the copper bar is connected with a lighting arrester and is supported by an insulator; one end of the insulator is fixed on the inner wall of the low-voltage switch cabinet; and the handcart-type breaker is provided with an upper contact corresponding to the upper contact box, and a lower contact corresponding to the lower contact box. In the utility model, the wall bushing current transformer is adopted, and the current transformer is arranged on the upper end of the breaker, so the push-type low-voltage switch cabinet can not only satisfy the requirement on the performance, but also realize the safe operation, and also improves the safe performance and reduces the hazard of the broken circuit compared with the prior art.
Description
Technical field
The utility model relates to electric field, particularly relates to a kind of low-tension switch cabinet, is the improvement that keeps away the handcart-type low-tension switch cabinet that opens circuit to can hand push realizing.
Background technology
The electrical control equipment switch cubicle that is widely used in industrial enterprise at present adopts fixed installation or portable the installation mostly, fixed installation is because few loop, increase the quantity of the monomer cabinet of series installation, increase equipment investment and maintenance inconvenience, portable relatively poor for single loop fail safe capacious.
The technical comparative maturity of low-tension switch cabinet of the MVnex type of Schneider in the prior art.Its design feature mainly is, power supply from the last termination of low-tension switch cabinet on horizontal copper bar, conduct to current transformer downwards by being positioned at the middle branch's copper bar of horizontal copper bar then, above-mentioned current transformer is arranged in low-tension switch cabinet, and is communicated to the handcart type breaker of an available hand push.Handcart type breaker is as one of parts of the type switch cubicle, and the current transformer in its breaker cabinet all is mounted in the below of circuit breaker, and current transformer then penetrates into outside the cabinet by a wall bushing.This scheme not only can be brought the danger of opening circuit, and also can cause difficulty in practice of construction, and the construction requirement of power supply unit is installed, and current transformer is mounted in the upper end of circuit breaker, and current transformer safety through walls is made standard.Yes goes out to send realization from security standpoint in this requirement, but if only prior art is done up and down and adjusted, can increase the danger of opening circuit greatly.
The utility model content
The purpose of this utility model is exactly the problem that occurs in above-mentioned prior art and the application in practice in order to solve, and a kind of scheme of novel hand propelled low-tension switch cabinet is provided.Utilize low-tension switch cabinet scheme of the present utility model both can realize the through walls of current transformer safely, greatly reduce the danger that occurs opening circuit again.
The technical solution of the utility model is as follows:
A kind of hand propelled low-tension switch cabinet, comprise the handcart type breaker summation current transformer that is used for hand push, it is characterized in that, described current transformer is the wall-penetrating type current transformer, one end of current transformer is positioned at cabinet, the other end is positioned at outside the cabinet, current transformer one end that is positioned at cabinet is connected on the upper contact head box by copper bar, be fixed with a following contact box in the bottom of upper contact head box, this time contact box is connected on the cable by copper bar, on copper bar, also be connected with lightning arrester, described copper bar supports by insulator, one end of described insulator is fixed on the inwall of low-tension switch cabinet, described handcart type breaker is provided with and the corresponding upper contact head of described upper contact head box, with the described corresponding following contact of contact box down.
Described insulator is provided with two, and wherein first insulator is horizontally disposed with, and an end is fixed on the perpendicular wall of low-tension switch cabinet, and the other end is fixed in the vertical part of copper bar; Second insulator vertically is provided with, and the one end is fixed on the sole-plate of handcart type breaker, and the other end is fixed in the horizontal component of copper bar.
Be provided with electrification display cashier's office in a shop at this low tension switch.
With respect to prior art, the utlity model has following technological merit:
Owing to adopted the current transformer of wall-penetrating type in the utility model, cancelled wall bushing of the prior art, and current transformer has been placed the circuit breaker upper end, meet safe performance requirement fully.Current transformer in the cabinet links to each other with miscellaneous part by copper bar, has both satisfied performance requirement, can realize safe operation again, has improved security performance than prior art, has reduced the danger that occurs opening circuit.
Description of drawings
Fig. 1 is the circuit theory diagrams of hand propelled low-tension switch cabinet of the present utility model.
Fig. 2 is the front view of hand propelled low-tension switch cabinet of the present utility model.
Fig. 3 is the cutaway view of hand propelled low-tension switch cabinet of the present utility model.
Contact under the 1-handcart type breaker 11-upper contact head 12-
Contact box under the 2-wall-penetrating type current transformer 3-upper contact head box 4-
The 5-lightning arrester 61-first insulator 62-second insulator
7-cable 8-electrification display
Embodiment
Come hand propelled low-tension switch cabinet of the present utility model is described in further detail below in conjunction with accompanying drawing and specific embodiment, but can not limit protection range of the present utility model with this.
Hand propelled low-tension switch cabinet of the present utility model is the technological improvement to hand propelled low-tension switch cabinet of the prior art.The low-tension switch cabinet main circuit structural principle of the type as shown in Figure 1, Fig. 1 is the circuit theory diagrams of hand propelled low-tension switch cabinet of the present utility model.By the horizontal copper bar that is positioned at the switch cubicle upper end power supply is connect down, transfer to then on vertical branch's copper bar, be connected to by current transformer and handcart type breaker on the cable of lower end.Circuit breaker wherein is the handcart circuit breaker that is used for hand push, and whether charged the lower end of handcart type breaker be provided with in order to sign electrification display, the lightning arrester of the harm that is used to avoid to be struck by lightning.
The concrete improvement of low-tension switch cabinet of the present utility model is the current transformer that has adopted wall-penetrating type, and as shown in Figure 2, Fig. 2 is the front view of hand propelled low-tension switch cabinet of the present utility model.As seen from the figure, the outer end of cabinet is exposed for the wall-penetrating type current transformer in the left side of low-tension switch cabinet, and this section connects power supply.Whether whether the middle part in the upward-acting door of low-tension switch cabinet is an electrification display 8, utilize it to light and identify down end cable and connect charged.
The internal structure of hand propelled low-tension switch cabinet of the present utility model as shown in Figure 3, Fig. 3 is the cutaway view of hand propelled low-tension switch cabinet of the present utility model.As seen from the figure, the utility model hand propelled low-tension switch cabinet mainly comprises handcart type breaker 1 summation current transformer that is used for hand push, described current transformer is a wall-penetrating type current transformer 2, and an end of this wall-penetrating type current transformer 2 is positioned at cabinet, and the other end is positioned at outside the cabinet.Be positioned at the outer end of cabinet and connect the access power supply, and be linked into low-tension switch cabinet by an end that is arranged in cabinet.
Specifically be to be connected on the upper contact head box 3 by copper bar by wall-penetrating type current transformer 2 one ends that are positioned at cabinet.Be fixed with a following contact box 4 in the bottom of upper contact head box 3, this time contact box 4 is connected on the cable 7 by copper bar.
Described handcart type breaker 1 is provided with the upper contact head 11 corresponding with described upper contact head box 3, the following contact 12 corresponding with described contact box down 4.When the needs energized, with handcart type breaker 1 push-on switch cabinet, the Mume flower contact on the upper contact head 11 is inserted in the upper contact head box 3 and blocks at this moment; Mume flower contact on the following contact 12 then is inserted into down in the contact box 4 and blocks.When needing to disconnect, then contact and contact box are broken away from, handcart type breaker is drawn back in switch cubicle.
For copper bar is effectively supported, avoid switch cubicle is caused charged, need to utilize the insulator of pottery to support.Described copper bar supports by insulator, and an end of described insulator is fixed on the inwall of low-tension switch cabinet, and the other end then is fixed on the copper bar.For fear of thunderbolt switch cubicle is caused damage, on copper bar, also be connected with a lightning arrester 5.
Because the copper bar in the switch cubicle has a plurality of bendings, so insulator is provided with two, wherein first insulator 61 is horizontally disposed with, one end is fixed on the perpendicular wall of low-tension switch cabinet, the other end is fixed in the vertical part of copper bar, second insulator 62 vertically is provided with, and the one end is fixed on the sole-plate of handcart type breaker, and the other end is fixed in the horizontal component of copper bar.
Undoubtedly, hand propelled low-tension switch cabinet of the present utility model also has other structural designs and parts to replace, the part that is not limited in the foregoing description to be mentioned.Generally speaking, protection range of the present utility model also comprises the variation that other it will be apparent to those skilled in the art that and substitutes.
Claims (3)
1. hand propelled low-tension switch cabinet, comprise handcart type breaker (1) summation current transformer that is used for hand push, it is characterized in that, described current transformer is wall-penetrating type current transformer (2), one end of this wall-penetrating type current transformer (2) is positioned at cabinet, the other end is positioned at outside the cabinet, wall-penetrating type current transformer one end that is positioned at cabinet is connected on the upper contact head box (3) by copper bar, be fixed with a following contact box (4) in the bottom of upper contact head box (3), this time contact box (4) is connected on the cable (7) by copper bar, on copper bar, also be connected with lightning arrester (5), described copper bar supports by insulator, one end of described insulator is fixed on the inwall of low-tension switch cabinet, described handcart type breaker (1) is provided with the upper contact head (11) corresponding with described upper contact head box (3), with the described corresponding following contact (12) of contact box (4) down.
2. hand propelled low-tension switch cabinet according to claim 1, it is characterized in that, described insulator is provided with two, wherein first insulator (61) is horizontally disposed with, one end is fixed on the perpendicular wall of low-tension switch cabinet, and the other end is fixed in the vertical part of copper bar, and second insulator (62) vertically is provided with, the one end is fixed on the sole-plate of handcart type breaker, and the other end is fixed in the horizontal component of copper bar.
3. hand propelled low-tension switch cabinet according to claim 1 is characterized in that, is provided with electrification display (8) cashier's office in a shop at this low tension switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201577177U CN201360101Y (en) | 2008-12-24 | 2008-12-24 | Push-type low-voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201577177U CN201360101Y (en) | 2008-12-24 | 2008-12-24 | Push-type low-voltage switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201360101Y true CN201360101Y (en) | 2009-12-09 |
Family
ID=41425866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201577177U Expired - Fee Related CN201360101Y (en) | 2008-12-24 | 2008-12-24 | Push-type low-voltage switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201360101Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186422A (en) * | 2015-10-19 | 2015-12-23 | 山东达驰阿尔发电气有限公司 | Cable switch cabinet for enclosed busbar |
-
2008
- 2008-12-24 CN CNU2008201577177U patent/CN201360101Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186422A (en) * | 2015-10-19 | 2015-12-23 | 山东达驰阿尔发电气有限公司 | Cable switch cabinet for enclosed busbar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091209 Termination date: 20121224 |