CN222996042U - DC high-voltage electrical equipment box - Google Patents
DC high-voltage electrical equipment box Download PDFInfo
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- CN222996042U CN222996042U CN202421659043.6U CN202421659043U CN222996042U CN 222996042 U CN222996042 U CN 222996042U CN 202421659043 U CN202421659043 U CN 202421659043U CN 222996042 U CN222996042 U CN 222996042U
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Abstract
The utility model relates to the technical field of rail transit vehicles and discloses a direct-current high-voltage electric appliance box which comprises a box body, wherein a high-voltage chamber for installing a high-voltage electric appliance element and a low-voltage chamber for installing a low-voltage electric appliance element are arranged in the box body, a partition plate interval is arranged between the high-voltage chamber and the low-voltage chamber, a high-speed circuit breaker is installed in the high-voltage chamber, a high-break protection cover for isolating an electric arc is further arranged in the high-voltage chamber, and the high-break protection cover is fixedly covered outside the high-speed circuit breaker, so that the problems of large occupied space and low safety of an existing direct-current high-voltage electric appliance box structure are solved.
Description
Technical Field
The utility model relates to the technical field of rail transit vehicles, in particular to a direct-current high-voltage electrical appliance box.
Background
The direct-current high-voltage electric appliance box comprises a main isolating switch for reliably disconnecting high voltage from a current collector, a high-speed breaker for main circuit fault protection, a pre-charging contactor, a pre-charging resistor, a main contactor and other devices, and the high-voltage electric appliance is used as short-circuit protection of a direct-current power supply network, so that damage to vehicle equipment caused by current increase of a loop due to short-circuit operation of the vehicle can be effectively prevented.
When the current passing through the high-speed circuit breaker reaches a preset value, the contact fork releases electric energy, so that the contact terminal instantaneously breaks a circuit, the high-speed circuit breaker can generate high voltage and excite an electric arc at the moment of separating the contact terminal, and the electric arc can disappear on a corresponding structure;
Along with the rapid development of trains, higher requirements are put forward on the safety of the trains, a plurality of high-speed breakers are required to be configured in a direct-current high-voltage electrical apparatus box, and if the existing direct-current high-voltage electrical apparatus box structure is adopted continuously, the problems of larger occupied space and lower safety exist.
Disclosure of utility model
The utility model aims to provide a direct-current high-voltage electric box so as to solve the problems of larger occupied space and lower safety of the existing direct-current high-voltage electric box structure.
The direct-current high-voltage electric appliance box comprises a box body, wherein a high-voltage chamber for installing a high-voltage electric appliance element and a low-voltage chamber for installing a low-voltage electric appliance element are arranged in the box body, a partition plate interval is arranged between the high-voltage chamber and the low-voltage chamber, a high-speed circuit breaker is installed in the high-voltage chamber, a high-breaking protection cover for isolating an electric arc is further arranged in the high-voltage chamber, and the high-breaking protection cover is fixedly covered outside the high-speed circuit breaker.
The principle and the advantages of the scheme are that the high-voltage electric appliance and the low-voltage electric appliance are separately placed in two independent chambers and separated by the partition board, so that the electric arc of the high-voltage electric appliance cannot act on the low-voltage electric appliance, the safety of a direct-current high-voltage electric appliance box is improved, the installation interval between the electric appliances can be reduced, a gap which is arranged for the arc spraying distance between the low-voltage electric appliance and the high-voltage electric appliance is omitted, the high-voltage protection cover is arranged outside the high-speed circuit breaker, the electric arc generated by the high-speed circuit breaker is controlled in the high-voltage protection cover, the electric arc is prevented from acting inside the chambers, and the gap between the high-speed circuit breaker and the inner wall of the chambers can be reduced while the safety inside the box is improved.
As an improvement, the high-speed circuit breakers are multiple, the high-speed circuit breakers are sequentially arranged on the bottom surface of the high-voltage chamber, the high-speed circuit breakers are multiple, and the high-speed circuit breakers correspond to the high-speed circuit breakers one by one.
The improved high-speed circuit breaker has the beneficial effects that the plurality of high-speed circuit breakers are separated and isolated independently, so that the mutual interference of electric arcs generated by the plurality of high-speed circuit breakers is avoided, and meanwhile, the distance between the plurality of high-speed circuit breakers can be reduced.
As an improvement, be equipped with the mount pad that is used for installing on the bottom surface in the high-pressure chamber high-break protection cover, the mount pad is a plurality of, mount pad and high-break protection cover one-to-one, the mount pad includes two filler strips, high-speed circuit breaker fixed mounting is between two filler strips of a mount pad, the bottom both sides of high-break protection cover are fixed with two filler strips of a mount pad respectively.
The improved high-speed circuit breaker has the beneficial effects that the end point of the filler strip is positioned at the bottom end of the high-speed circuit breaker and the bottom surface of the cavity while the high-speed circuit breaker can be completely covered by the high-speed protective cover, so that a cable of the high-speed circuit breaker can pass through the gap, and the reasonable installation of electrical equipment is facilitated.
As an improvement, the low-pressure chamber is positioned at the front part of the box body, the high-pressure chamber is positioned at the rear part of the box body, a plurality of door plates are arranged on the side plates at two sides of the box body, and the low-pressure chamber and the high-pressure chamber respectively contain two door plates which are oppositely arranged.
The improved box has the beneficial effects that two door plates of the same cavity are opened, and workers can pass through the cavity from two sides to observe the interior of the cavity, so that the workers can conveniently install and overhaul various devices in the box.
As an improvement, a mounting plate for mounting the isolating switch module is arranged in the low-pressure chamber, the mounting plate is vertically fixed on the front end surface of the low-pressure chamber and is vertical to the front end surface of the low-pressure chamber, and the operating surface of the isolating switch module on the mounting plate faces to the door plate in the low-pressure chamber closest to the operating surface;
The space between the mounting plate and the other door plate in the low-pressure chamber is provided with a pre-charging resistor module which is fixedly arranged on the front end face of the low-pressure chamber, the space between the mounting plate and the rear end face of the low-pressure chamber is provided with a contactor module, and the filler strip is parallel to the front end face of the high-pressure chamber.
The improved structure has the beneficial effects that the layout modes of the electric appliances in the low-voltage cavity and the high-voltage cavity meet the installation conditions of the components, the internal structure is more compact, and workers standing outside the door plate can be ensured to act on the areas.
As an improvement, the upper edge of the door plate is hinged with the upper part of the box body.
The improved box has the beneficial effects that the door plates of the low-pressure chamber and the high-pressure chamber are opened without interference, and the box is more flexible to operate in the box.
As an improvement, the box body is of an integral structure, and the box body and the door plate are made of aluminum alloy materials.
The improved box has the beneficial effects that the box body is manufactured by using light metal and adopting an integral structure, so that the overall weight of the box body is reduced, and the higher strength of the box body is ensured.
As an improvement, the rear end face of the high-pressure chamber is a rear end plate of the box body, and a connector for guiding the control line in the box body is arranged on the rear end plate.
As an improvement, the front end face of the low-voltage chamber is a front end plate of the box body, and the front end plate is provided with a waterproof joint for a cable to pass through in the installation area of the pre-charging resistor module.
The improved circuit board has the beneficial effects that the circuit connections with different functions are respectively arranged at the two ends of the box body, the required length of the cable connection is shortened, and the circuit layout is standardized.
Drawings
Fig. 1 is a schematic view of the structure of the inside of the case.
Fig. 2 is a schematic diagram of a mounting structure of the high-break protection cover and the mounting base.
Fig. 3 is a schematic view of the structure of the outside of the case.
Fig. 4 is a schematic view of the structure from another view of the outside of the case.
Detailed Description
The following is a further detailed description of the embodiments:
The reference numerals in the drawings of the specification include a case 1, a high-voltage chamber 2, a low-voltage chamber 3, a partition 4, a high-speed circuit breaker 5, a high-break protection cover 6, a filler strip 7, a door panel 8, a mounting plate 9, a precharge resistor module 10, a contactor module 11, a rear end plate 12, a connector 13, a front end plate 14, and a waterproof joint 15.
Examples
The direct-current high-voltage electric appliance box comprises a box body, wherein a high-voltage chamber 2 for installing a high-voltage electric appliance element and a low-voltage chamber 3 for installing a low-voltage electric appliance element are arranged in the box body, a partition plate 4 is arranged between the high-voltage chamber 2 and the low-voltage chamber 3, three high-speed circuit breakers 5 are installed in the high-voltage chamber 2, three high-voltage protection covers 6 for isolating electric arcs are further arranged in the high-voltage chamber 2, the high-voltage protection covers 6 are fixedly covered outside the high-speed circuit breakers 5, and the high-voltage protection covers 6 are in one-to-one correspondence with the high-speed circuit breakers 5, so that each high-speed circuit breaker 5 is covered by the independent high-voltage protection covers 6.
The high-voltage protection cover is characterized in that mounting seats for mounting the high-voltage protection cover are arranged on the bottom surface in the high-voltage chamber 2, the number of the mounting seats is three, the mounting seats are in one-to-one correspondence with the high-voltage protection cover 6, each mounting seat comprises two backing strips 7, the high-speed circuit breaker 5 is fixedly mounted between the two backing strips 7 of one mounting seat through bolts, and two sides of the bottom of the high-voltage protection cover 6 are respectively fixed with the two backing strips 7 of one mounting seat through bolts.
As shown in fig. 3 and fig. 4, the low-pressure chamber 3 is located at the front part of the box body 1, the high-pressure chamber 2 is located at the rear part of the box body 1, a plurality of door plates 8 are arranged on the side plates on two sides of the box body 1, and each of the low-pressure chamber 3 and the high-pressure chamber 2 comprises two door plates 8 which are oppositely arranged.
The low-pressure chamber 3 is internally provided with a mounting plate 9 for mounting the isolating switch module, the mounting plate 9 is vertically and fixedly welded on the front end surface of the low-pressure chamber 3 and is vertical to the front end surface of the low-pressure chamber 3, and the operating surface of the isolating switch module on the mounting plate 9 faces to a door plate 8 in the low-pressure chamber closest to the operating surface;
The space between the mounting plate 9 and the other door plate 8 in the low-voltage chamber 3 is provided with a pre-charging resistor module 10, the pre-charging resistor module 10 is fixedly arranged on the front end face of the low-voltage chamber 3 through bolts, the space between the mounting plate 9 and the rear end face of the low-voltage chamber 3 is provided with a contactor module 11, the gasket 7 is parallel to the front end face of the high-voltage chamber 2, and workers can operate each cable connected with the high-speed circuit breaker 5 through the door plates 8 on the two sides of the high-voltage chamber 2.
The upper edge of the door plate 8 is hinged with the upper side of the box body 1 through a hinge, so that the door plate 8 can be turned upwards to be opened, the box body 1 is of an integral structure, and the box body 1 and the door plate 8 are made of aluminum alloy materials.
The rear end face of the high-pressure chamber 2 is a rear end plate 12 of the box body 1, and a connector 13 for guiding the control line in the box body is arranged on the rear end plate 12. The front end face of the low-voltage chamber 3 is a front end plate 14 of the box body 1, and the front end plate 14 is provided with a waterproof joint 15 for a cable to pass through in the installation area of the pre-charging resistor module 10.
The foregoing is merely exemplary of the present utility model, and specific technical solutions and/or features that are well known in the art have not been described in detail herein. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present utility model, and these should also be regarded as the protection scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the practical applicability of the patent. The protection scope of the present utility model is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (9)
1. The direct-current high-voltage electric appliance box comprises a box body and is characterized in that the box body comprises a high-voltage chamber for installing a high-voltage electric appliance element and a low-voltage chamber for installing a low-voltage electric appliance element, a partition plate interval is arranged between the high-voltage chamber and the low-voltage chamber, a high-speed circuit breaker is installed in the high-voltage chamber, a high-voltage breaking protection cover for isolating an electric arc is further arranged in the high-voltage chamber, and the high-voltage breaking protection cover is fixedly covered outside the high-speed circuit breaker.
2. The direct-current high-voltage electrical apparatus box of claim 1 wherein the plurality of high-speed circuit breakers are sequentially arranged on the bottom surface of the high-voltage chamber, the plurality of high-speed circuit breakers are arranged on the bottom surface of the high-voltage chamber, and the high-speed circuit breakers are in one-to-one correspondence with the plurality of high-speed circuit breakers.
3. The direct current high-voltage electrical apparatus box of claim 2, wherein a plurality of installation seats for installing the high-break protective cover are arranged on the bottom surface in the high-voltage cavity, the installation seats are in one-to-one correspondence with the high-break protective cover, each installation seat comprises two filler strips, the high-speed circuit breaker is fixedly installed between the two filler strips of one installation seat, and two sides of the bottom of the high-break protective cover are respectively fixed with the two filler strips of one installation seat.
4. The direct current high voltage electrical apparatus cabinet as recited in claim 3, wherein the low voltage chamber is located at a front portion of the cabinet, the high voltage chamber is located at a rear portion of the cabinet, a plurality of door plates are disposed on side plates on two sides of the cabinet, and each of the low voltage chamber and the high voltage chamber comprises two door plates disposed opposite to each other.
5. The DC high-voltage electrical apparatus box of claim 4, wherein the low-voltage chamber is internally provided with a mounting plate for mounting the isolating switch module, the mounting plate is vertically fixed on the front end surface of the low-voltage chamber and is vertical to the front end surface of the low-voltage chamber, and the operating surface of the isolating switch module on the mounting plate faces towards the door plate in the low-voltage chamber closest to the operating surface;
The space between the mounting plate and the other door plate in the low-pressure chamber is provided with a pre-charging resistor module which is fixedly arranged on the front end face of the low-pressure chamber, the space between the mounting plate and the rear end face of the low-pressure chamber is provided with a contactor module, and the filler strip is parallel to the front end face of the high-pressure chamber.
6. The DC high-voltage electrical apparatus cabinet of claim 5, wherein the upper edge of the door panel is hinged to the upper side of the cabinet.
7. The direct current high voltage electrical apparatus cabinet as recited in claim 6, wherein the cabinet is of an integral structure, and the cabinet and the door plate are both made of aluminum alloy.
8. The DC high-voltage electrical apparatus cabinet of claim 7, wherein the rear end surface of the high-voltage chamber is a rear end plate of the cabinet body, and a connector for externally guiding a control line in the cabinet body is arranged on the rear end plate.
9. The DC high-voltage electrical apparatus cabinet of claim 8, wherein the front end surface of the low-voltage chamber is a front end plate of the cabinet, and the front end plate is provided with a waterproof joint for a cable to pass through in the pre-charging resistor module installation area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421659043.6U CN222996042U (en) | 2024-07-12 | 2024-07-12 | DC high-voltage electrical equipment box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421659043.6U CN222996042U (en) | 2024-07-12 | 2024-07-12 | DC high-voltage electrical equipment box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222996042U true CN222996042U (en) | 2025-06-17 |
Family
ID=95993501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421659043.6U Active CN222996042U (en) | 2024-07-12 | 2024-07-12 | DC high-voltage electrical equipment box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222996042U (en) |
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2024
- 2024-07-12 CN CN202421659043.6U patent/CN222996042U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20251209 Address after: 400042 Chongqing Yuzhong District Hualongqiao Street Huawei Road No.1 (Chongqing Enterprise City Building 8) 25th Floor 2561 Patentee after: Chongqing Transportation Construction Management Co.,Ltd. Country or region after: China Address before: 400010 Chongqing City, Yuzhong District, No. 1 HuaSheng Road (Building 8 of Chongqing Enterprise Square), 25th Floor, Room 2532 Patentee before: Chongqing Railway (Group) Co., Ltd. Country or region before: China |
|
| TR01 | Transfer of patent right |