阅读说明：本技术 一种触头盒及安装该触头盒的高压开关柜 (Contact box and high-voltage switch cabinet provided with same ) 是由 胡家国 于 2021-08-04 设计创作，主要内容包括：本发明属于开关柜技术领域,尤其为一种触头盒及安装该触头盒的高压开关柜,所述触头盒包括盒体,所述盒体上设有引线口,所述盒体的内腔顶部设有安装槽,所述安装槽内通过安装件固定安装有静触头,所述引线口的内部穿插有连接静触头的母排。本发明极大提高了触头盒安装的结构强度,连接稳定性高,防脱性佳,并具有良好的抗震性,解决了传统触头盒安装时易发生螺母脱落的问题,触头盒采用水冷加风冷的组合散热降温方式,能够有效提高触头盒的散热效率,保证触头盒的使用安全性,使高压开关柜与触头盒的散热系统进行有益联动,辅助盒体散热的同时,达到快速排热的目的,使高压开关柜的使用安全性进一步得到提升。(The invention belongs to the technical field of switch cabinets, and particularly relates to a contact box and a high-voltage switch cabinet provided with the same. The invention greatly improves the structural strength of the installation of the contact box, has high connection stability, good anti-falling performance and good anti-vibration performance, solves the problem that a nut is easy to fall off when the traditional contact box is installed, adopts a combined heat dissipation and cooling mode of water cooling and air cooling to the contact box, can effectively improve the heat dissipation efficiency of the contact box, ensures the use safety of the contact box, enables the high-voltage switch cabinet and a heat dissipation system of the contact box to be in beneficial linkage, and achieves the purpose of rapid heat dissipation while assisting the heat dissipation of the box body, thereby further improving the use safety of the high-voltage switch cabinet.)

1. The utility model provides a contact box, is applied to high tension switchgear, the contact box includes box body (1), its characterized in that: the box body (1) is provided with a lead port (2), the top of an inner cavity of the box body (1) is provided with a mounting groove (3), a static contact (4) is fixedly mounted in the mounting groove (3) through a mounting part, a busbar (5) connected with the static contact (4) is inserted into the lead port (2), the top of the box body (1) is provided with an air vent (6), the top end of the air vent (6) is provided with an outer opening (7), the surface of the inner wall of the outer opening (7) is attached with a drying agent sleeve (8), a drying agent is filled in the drying agent sleeve (8), a water-cooling coil (9) is arranged inside the inner wall of the box body (1), the side wall of the box body (1) is respectively connected with a water-cooling liquid inlet pipe (10) and a water-cooling liquid return pipe (11), the water-cooling liquid inlet pipe (10) and the water-cooling liquid return pipe (11) are respectively connected with the water inlet and the water outlet of the water-cooling coil (9), a base (12) is arranged at the bottom of the box body (1), a sleeve (13) is inserted in the box body (1), a vertical channel (14) is arranged in the sleeve (13) corresponding to the position right under the static contact (4), heat discharge channels (15) are uniformly distributed on the periphery of the inner part of the sleeve (13) corresponding to the vertical channel (14) in the circumferential direction, a first heat radiation fan (16) is fixedly arranged in the bottom end of the heat discharge channel (15), the bottom of the sleeve (13) is provided with a mounting seat (17), the base (12) is connected with the mounting seat (17) through a locking bolt (18), the locking bolt (18) is provided with a first nut (19) for locking the mounting part of the high-voltage switch cabinet, the end part of the locking bolt (18) is provided with a second nut (20) used for locking and fixing the mounting seat (17), the mounting seat (17) is clamped between a first nut (19) and a second nut (20).

2. The contact box of claim 1, wherein: the water-cooling coil (9) spirals along the inner wall of the box body (1) and rises to the peripheral position of the outer opening (7).

3. The contact box of claim 1, wherein: the diameter of the outer opening (7) is larger than that of the vent hole (6), and a filter screen is arranged at the bottom end of the outer opening (7).

4. The contact box of claim 1, wherein: an umbrella skirt (21) is arranged on the outer wall of the box body (1).

5. The contact box of claim 1, wherein: and a shielding sleeve (22) is arranged on the inner wall of the box body (1) corresponding to the periphery of the static contact (4).

6. The high-voltage switch cabinet provided with the contact box according to claim 1, characterized in that: the high-voltage switch cabinet comprises a cabinet body (23), the inside of the cabinet body (23) is provided with a partition plate (24) for installing a contact box, the base (12) is installed on the partition plate (24) through a locking bolt (18) and locked through a first nut (19), a plug-in hole matched with the sleeve (13) is formed in the partition plate (24), the left side and the right side of the cabinet body (23) corresponding to the partition plate (24) are respectively provided with a bus chamber (25) and a handcart chamber (26), the inside of the bus chamber (25) is provided with a bus sleeve, a main bus (27) is arranged in the bus sleeve, the main bus (27) is connected with a busbar (5) through a branch bus (28), the inside of the handcart chamber (26) is provided with a sliding handcart (29), a circuit breaker (30) is installed on the sliding handcart (29), and the circuit breaker (30) is connected with a static contact (4) through a pole contact assembly (31), slide around the slide handcart (29) and slide utmost point post contact subassembly (31) and the separation of static contact (4) and be connected that drive circuit breaker (30), the inside fixed mounting of inner wall of baffle (24) has second cooling fan (32).

7. The high-voltage switch cabinet provided with the contact box as claimed in claim 6, wherein: the outer wall of the cabinet body (23) is coated with an epoxy resin coating.

8. The high-voltage switch cabinet provided with the contact box as claimed in claim 6, wherein: the cabinet body (23) is provided with an air inlet on the side wall corresponding to the bus chamber (25), the cabinet body (23) is provided with an air outlet on the side wall corresponding to the handcart chamber (26), and the air inlet, the second cooling fan (32) and the air outlet form a cooling channel.

9. The high-voltage switch cabinet provided with the contact box as claimed in claim 6, wherein: and a positioning groove for positioning the base (12) is arranged on the partition plate (24).

Technical Field

The invention relates to the technical field of switch cabinets, in particular to a contact box and a high-voltage switch cabinet provided with the same.

Background

The high-voltage switch cabinet is used for power generation, power transmission, power distribution, electric energy conversion and consumption of an electric power system and plays roles of on-off, control or protection and the like. The high-voltage switch cabinet is used as an electric appliance product with the voltage grade of 3.6kV to 550kV, a high-voltage isolating switch, a grounding switch, a high-voltage load switch, a high-voltage automatic reclosing and sectionalizing device, a high-voltage operating mechanism, a high-voltage explosion-proof power distribution device, a high-voltage switch cabinet and the like.

The contact box is an epoxy resin APG process pressure gel forming structure, is used for various handcart type switch cabinets and plays roles of insulation, isolation and connection transition. The contact box is an insulating component applied to various handcart type switch cabinets, and input and output busbars are connected at the contact box. The structure of current contact box is generally including being tube-shape and top confined body, and the bottom of this body is opened and is used for supplying female the row to stretch into, and the lateral part of body runs through in addition and sets up a connection port for supplying another female row to stretch into, and body top inboard still is fixed with the inserts that are used for fixed female arranging, makes female arranging of input and output can realize fixed connection and switch on inside the body.

On traditional high tension switchgear generally was fixed in high tension switchgear's baffle (valve) through the bolt with the contact box directly when installation contact box, there was not enough, the poor defect of shock resistance in this kind of contact box mounting structure intensity, easily leads to the nut on the bolt to drop, connects the unstability, and traditional contact box's thermal diffusivity is relatively poor, can not unite with the cooling system of cubical switchboard, makes high tension switchgear's safety in utilization can not obtain the guarantee.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a contact box and a high-voltage switch cabinet provided with the same, and solves the problems that the traditional high-voltage switch cabinet is not provided with a contact box, the contact box is generally fixed on a partition plate (valve) of the high-voltage switch cabinet through a bolt when the contact box is arranged, the installation structure of the contact box has the defects of insufficient strength and poor shock resistance, a nut on the bolt is easy to fall off and unstable in connection, the traditional contact box is poor in heat dissipation performance and cannot be combined with a heat dissipation system of the switch cabinet, and the use safety of the high-voltage switch cabinet cannot be guaranteed.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: a contact box is applied to a high-voltage switch cabinet and comprises a box body, wherein a lead wire port is arranged on the box body, an installation groove is formed in the top of an inner cavity of the box body, a static contact is fixedly installed in the installation groove through an installation part, a bus bar connected with the static contact is inserted in the lead wire port, an air vent is formed in the top of the box body, an outer opening is formed in the top end of the air vent, a drying agent sleeve is attached to the surface of the inner wall of the outer opening, a drying agent is filled in the drying agent sleeve, a water-cooling coil pipe is arranged in the inner wall of the box body, a water-cooling liquid inlet pipe and a water-cooling liquid return pipe are connected to the side wall of the box body respectively, the water-cooling liquid inlet pipe and the water-cooling liquid return pipe are connected with a water inlet and a water outlet of the water-cooling coil pipe respectively, a base is arranged at the bottom of the box body, a sleeve is inserted in the box body, and a vertical channel is arranged in the sleeve at a position corresponding to the static contact position, the heat dissipation structure is characterized in that heat dissipation channels are uniformly distributed in the peripheral circumference of the inner portion of the sleeve corresponding to the vertical channel, a first heat dissipation fan is fixedly mounted in the bottom of each heat dissipation channel, a mounting seat is arranged at the bottom of the sleeve, the base is connected with the mounting seat through a locking bolt, a first nut used for locking the mounting portion of the high-voltage switch cabinet is arranged on the locking bolt, a second nut used for locking the mounting seat is arranged at the end portion of the locking bolt, and the mounting seat is clamped between the first nut and the second nut.

As a preferable technical scheme of the invention, the water-cooling coil pipe spirals and rises to the peripheral position of the external opening along the inner wall of the box body.

As a preferable technical scheme of the invention, the diameter of the external opening is larger than that of the vent hole, and a filter screen is arranged at the bottom end of the external opening.

As a preferred technical scheme of the invention, an umbrella skirt is arranged on the outer wall of the box body.

As a preferred technical scheme of the present invention, a shielding sleeve is disposed on the inner wall of the box body corresponding to the periphery of the static contact.

The invention also provides a high-voltage switch cabinet, which comprises a cabinet body, wherein a clapboard for installing the contact box is arranged inside the cabinet body, the base is arranged on the partition plate through a locking bolt and is locked and fixed through a first nut, the partition plate is provided with an insertion hole matched with the sleeve, the left side and the right side of the corresponding partition board in the cabinet body are respectively provided with a bus chamber and a handcart chamber, a bus sleeve is arranged in the bus chamber, a main bus is arranged in the bus sleeve, the main bus is connected with the bus bar through a branch bus, a sliding handcart is arranged in the handcart room, the sliding handcart is provided with a circuit breaker which is connected with a fixed contact through a pole post contact assembly, slide around the slip handcart and drive utmost point post contact subassembly and the static contact separation and the connection of circuit breaker, the inside fixed mounting of inner wall of baffle has second cooling fan.

As a preferable technical scheme of the invention, the outer wall of the cabinet body is coated with an epoxy resin coating.

As a preferred technical scheme of the invention, an air inlet is arranged on the side wall of the cabinet body corresponding to the bus chamber, an air outlet is arranged on the side wall of the cabinet body corresponding to the handcart chamber, and the air inlet, the second cooling fan and the air outlet form a cooling channel.

As a preferred technical scheme of the invention, the clapboard is provided with a positioning groove for positioning the base.

(III) advantageous effects

Compared with the prior art, the invention provides a contact box and a high-voltage switch cabinet provided with the same, and the contact box has the following beneficial effects:

1. this contact box and install high tension switchgear of this contact box set up through the integrated configuration of mount pad, first nut, second nut, baffle, have greatly improved the structural strength of contact box installation, and connection stability is high, and anticreep nature is good to have good shock resistance, easily take place the problem that the nut drops when having solved traditional contact box installation.

2. The contact box and the high-voltage switch cabinet provided with the contact box adopt a combined heat dissipation and cooling mode of water cooling and air cooling, can effectively improve the heat dissipation efficiency of the contact box, and ensure the use safety of the contact box.

3. This contact box and install high tension switchgear of this contact box constitute the heat extraction passageway through air inlet, second cooling fan and gas vent, make high tension switchgear and the cooling system of contact box carry out useful linkage, when supplementary box body is radiating, reach the purpose of quick heat extraction, make high tension switchgear's safety in utilization further obtain promoting.

Drawings

FIG. 1 is a schematic structural diagram of a cartridge according to the present invention;

FIG. 2 is a cross-sectional view of a contact box of the present invention;

FIG. 3 is a schematic structural view of the sleeve of the present invention;

FIG. 4 is a schematic view of a part of the internal structure of the cabinet of the present invention;

FIG. 5 is a schematic view of the mounting structure of the contact box and the separator plate according to the present invention.

In the figure: 1. a box body; 2. a wire leading port; 3. mounting grooves; 4. static contact; 5. a busbar; 6. a vent hole; 7. the outside is open; 8. packing a drying agent; 9. a water-cooled coil pipe; 10. water-cooling the liquid inlet pipe; 11. a water-cooling liquid return pipe; 12. a base; 13. a sleeve; 14. a vertical channel; 15. a heat exhaust channel; 16. a first heat dissipation fan; 17. a mounting seat; 18. locking the bolt; 19. a first nut; 20. a second nut; 21. an umbrella skirt; 22. a shielding sleeve; 23. a cabinet body; 24. a partition plate; 25. a bus chamber; 26. a handcart room; 27. a main bus; 28. a branch bus; 29. a sliding handcart; 30. a circuit breaker; 31. a pole contact assembly; 32. and a second heat radiation fan.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1-5, the present invention provides the following technical solutions: a contact box is applied to a high-voltage switch cabinet and comprises a box body 1, wherein a lead port 2 is arranged on the box body 1, an installation groove 3 is arranged at the top of an inner cavity of the box body 1, a static contact 4 is fixedly installed in the installation groove 3 through an installation part, a bus bar 5 connected with the static contact 4 is inserted in the lead port 2, an air vent 6 is arranged at the top of the box body 1, an outer opening 7 is arranged at the top end of the air vent 6, a drying agent sleeve 8 is attached to the inner wall surface of the outer opening 7, a drying agent is filled in the drying agent sleeve 8, a water-cooling coil pipe 9 is arranged in the inner wall of the box body 1, a water-cooling liquid inlet pipe 10 and a water-cooling liquid return pipe 11 are respectively connected to the side wall of the box body 1, the water-cooling liquid inlet pipe 10 and the water-cooling liquid return pipe 11 are respectively connected with a water inlet and a water outlet of the water-cooling coil pipe 9, a base 12 is arranged at the bottom of the box body 1, a sleeve 13 is inserted in the box body 1, a vertical channel 14 is arranged in the sleeve 13 corresponding to the position right above the static contact 4, the heat dissipation device comprises a sleeve 13, heat dissipation channels 15 are evenly distributed on the inner portion of the sleeve 13 corresponding to the periphery of a vertical channel 14 in the circumferential direction, a first heat dissipation fan 16 is fixedly mounted inside the bottom end of each heat dissipation channel 15, a mounting seat 17 is arranged at the bottom of the sleeve 13, a base 12 is connected with the mounting seat 17 through a locking bolt 18, a first nut 19 used for locking a mounting portion of a high-voltage switch cabinet is arranged on the locking bolt 18, a second nut 20 used for locking the mounting seat 17 is arranged at the end portion of the locking bolt 18, and the mounting seat 17 is clamped between the first nut 19 and the second nut 20.

In this embodiment, a water cooling system is formed between the water-cooling liquid inlet pipe 10, the water-cooling liquid return pipe 11, the circulating pump and the water cooling tank, the circulating pump works dry, the water cooling liquid in the water cooling tank is pumped into the water-cooling coil pipe 9 through the water-cooling liquid inlet pipe 10 to absorb the heat of the box body 1, the hot water cooling liquid after heat exchange is returned to the water cooling tank through the water-cooling liquid return pipe 11, and the purpose of rapidly cooling the box body 1 is achieved through the water cooling system.

Specifically, the water-cooling coil 9 spirals along the inner wall of the box body 1 and rises to the peripheral position of the outer opening 7.

In this embodiment, utilize the inside and outer uncovered 7 peripheral water-cooling coil 9 that set up of 1 inner wall of box body, can carry out rapid cooling to the contact box, improve cooling efficiency, guarantee the normal safe operation of contact box.

Specifically, the diameter of the outer opening 7 is larger than that of the vent hole 6, and a filter screen is arranged at the bottom end of the outer opening 7.

In this embodiment, set up the filter screen through the bottom at outer uncovered 7, can filter the air that gets into in the box body 1, prevent that impurity such as dust from getting into inside the box body 1.

Specifically, the outer wall of the box body 1 is provided with an umbrella skirt 21.

In this embodiment, the structural strength of the box body 1 can be improved by providing the umbrella skirt 21 on the outer wall of the box body 1.

Specifically, the inner wall of the box body 1 is provided with a shielding sleeve 22 corresponding to the periphery of the static contact 4.

In this embodiment, the shielding sleeve 22 is disposed on the inner wall of the box body 1 corresponding to the periphery of the static contact 4, and the shielding sleeve 22 can eliminate dielectric discharge between the busbar 5, the static contact 4 and the box body 1, thereby avoiding the mutual inductance phenomenon and reducing the influence of an external electromagnetic field on a circuit.

The invention also provides a high-voltage switch cabinet, which comprises a cabinet body 23, wherein a partition plate 24 for installing a contact box is arranged inside the cabinet body 23, a base 12 is installed on the partition plate 24 through a locking bolt 18 and is locked through a first nut 19, the partition plate 24 is provided with an insertion hole matched with the sleeve 13, the left side and the right side of the partition plate 24 corresponding to the inside of the cabinet body 23 are respectively provided with a bus chamber 25 and a handcart chamber 26, a bus sleeve is arranged inside the bus chamber 25, a main bus 27 is arranged in the bus sleeve, the main bus 27 is connected with a bus bar 5 through a branch bus 28, a sliding handcart 29 is arranged inside the handcart chamber 26, a circuit breaker 30 is installed on the sliding handcart 29, the circuit breaker 30 is connected with a fixed contact 4 through a pole contact assembly 31, the sliding handcart 29 slides forwards and backwards to drive the pole contact assembly 31 of the circuit breaker 30 to be separated from and connected with the fixed contact 4, and a second heat dissipation fan 32 is fixedly installed inside the inner wall of the partition plate 24.

In this embodiment, preferably set up the controller in the cabinet body 23, and at the cabinet body 23 and the embedded temperature sensor of box body 1, the controller can adopt PLC programmable controller, with temperature sensor, first cooling fan 16 and second cooling fan 32 respectively with PLC programmable controller electric connection, through the interior ambient temperature of the cabinet body 23 of the temperature sensor real-time supervision in cabinet body 23 and the box body 1 of the box body 1, when the interior ambient temperature of the cabinet body 23 and the box body 1 is higher than the interior threshold value that establishes of PLC programmable controller, control first cooling fan 16 and the work of second cooling fan 32 through PLC programmable controller, accelerate the circulation of air speed in the cabinet body 23 and the box body 1, reach quick radiating purpose, the cooling effect is showing, can prolong the life of contact box and high tension switchgear, guarantee its safe operation.

Specifically, the outer wall of the cabinet 23 is coated with an epoxy resin coating.

In this embodiment, through coating the epoxy coating on the outer wall of the cabinet body 23, can utilize the epoxy coating to provide anticorrosive protection for the cabinet body 23, the epoxy coating still has better heat resistance and insulating properties simultaneously, and adhesive force is strong, and chemical resistance can be excellent.

Specifically, an air inlet is arranged on the side wall of the cabinet body 23 corresponding to the bus chamber 25, an air outlet is arranged on the side wall of the cabinet body 23 corresponding to the handcart chamber 26, and the air inlet, the second cooling fan 32 and the air outlet form a cooling channel.

In this embodiment, by providing the air inlet and the air outlet on the side wall of the cabinet body 23 and forming the heat dissipation channel between the air inlet and the second heat dissipation fan 32 and the air outlet, the air flow speed in the cabinet body 23 can be accelerated, and the heat dissipation efficiency of the cabinet body 23 is improved.

Specifically, the partition 24 is provided with a positioning groove for positioning the base 12.

In this embodiment, through set up the constant head tank that is used for base 12 location on the baffle 24, can realize the quick location of contact box installation, improve and change joining in marriage efficiency, make the stability of contact box installation obtain promoting.

The working principle and the using process of the invention are as follows: during assembly, firstly, a base 12 of the contact box corresponds to the positioning groove, the base 12 is arranged in the positioning groove, a locking bolt 18 penetrates through the base 12 to install the base 12 on the partition plate 24, then the base 12 is locked through a first nut 19, after the contact box is fixed, a sleeve 13 loaded with a first heat dissipation fan 16 is inserted into the box body 1 from an insertion hole in the partition plate 24 and the bottom of the box body 1 in sequence, the installation seat 17 is tightly attached to the first nut 19, the installation seat 17 is locked at the bottom end of the first nut 19 through a second nut 20, and therefore the installation operation of the contact box is completed; when the circuit is connected, the busbar 5 is inserted from the lead port 2 and is connected with the static contact 4, the busbar 5 is connected with the main bus 27 through the branch bus 28, and when the circuit breaker 30 is connected with the static contact 4, the sliding handcart 29 is moved forwards or backwards by pushing the sliding handcart 29 to be static, and then the circuit breaker is connected with or separated from the static contact 4 through the pole contact assembly 31; when the environment temperature in the contact box and the high-voltage switch cabinet is too high, the first heat dissipation fan 16 and the second heat dissipation fan 32 are started, on one hand, the first heat dissipation fan 16 is utilized to enable the air in the box body 1 to flow rapidly, the high-temperature air in the box body 1 is pumped and exhausted from the heat exhaust channel 15 into the cabinet body 23, the safe and stable working environment of the contact box is ensured, the heat exhaust channel is formed by the air inlet, the second heat dissipation fan 32 and the air outlet, the high-temperature air in the cabinet body 23 and part of the high-temperature air exhausted from the contact box into the cabinet body 23 are rapidly exhausted to the outside of the cabinet body 23 through the heat exhaust channel, the purpose of rapid heat dissipation is achieved, on the other hand, the water cooling liquid is conveyed into the water cooling coil pipe 9 through the water cooling liquid inlet pipe 10, the heat absorbed by the water cooling liquid and the inner wall of the box body 1 is utilized to carry out heat exchange, the hot water cooling liquid after the heat exchange returns to the water cooling box of the water cooling system through the water cooling liquid return pipe 11, thereby achieving the purpose of rapid cooling.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.