Longitudinal-rotation movable type indoor alternating-current metal-enclosed switchgear
By designing bottom-up ventilation channels and observation windows in indoor AC metal-enclosed switch equipment, problems such as difficulty in heat dissipation, large space occupation and difficult to judge the operating status are solved, and efficient heat dissipation and safe operation of the equipment are achieved.
Patent Information
- Application Number
- CN202421825874.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-07-30
AI Technical Summary
The existing indoor AC metal closed switch equipment has problems such as difficulty in dissipating heat, large space occupied by the equipment, difficulty in determining the operating status, and insufficient safety.
The vertically rotary disconnected indoor AC metal sealed switch equipment is designed. By setting up the main bus chamber, the longitudinally rotary isolation vacuum circuit breaker compartment, the electrical connection compartment and the pressure relief exhaust compartment, the bottom-up ventilation passage is realized by using the down fan and the upper fan module, the observation window is added to directly observe the pole column state, and the bus outlet structure is optimized.
It improves the heat dissipation efficiency of the equipment, reduces the equipment space, and ensures operational safety and reliability of equipment operation.
Smart Images
Figure CN223181640U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electrical switch cabinets. Specifically, the utility model relates to a vertical rotation and withdrawable indoor AC metal-enclosed switchgear. Background Art
[0002] The three-phase pole columns of ordinary indoor AC metal-enclosed switchgears are usually arranged horizontally from left to middle to right. It is necessary to achieve electrical connection through adapter copper bars, and a smooth heat dissipation channel cannot be formed. The connection positions between compartments of the switchgear are difficult to dissipate heat due to insulation encapsulation, and the effect of the fan is poor. Further, when the longitudinal busbars of ordinary indoor AC metal-enclosed switchgears are installed in a face-to-face double-row manner, the busbar outgoing line structure is usually large, resulting in relatively large width and depth dimensions of the equipment, and the equipment occupies a large area. In addition, in ordinary indoor AC metal-enclosed switchgears, the operating mechanism of the withdrawable circuit breaker blocks the observation position of the isolating contacts. The cooperation of the isolating contacts cannot be directly observed in front of the equipment. The operator cannot judge the operating position and cooperation state of the equipment, and can only estimate the cooperation state indirectly, which poses a fault risk to the operation of the equipment, and the personal safety of the operator is not guaranteed. Summary of the Utility Model
[0003] In order to solve at least one of the above technical problems, the utility model provides a vertical rotation and withdrawable indoor AC metal-enclosed switchgear.
[0004] To achieve the above object, the utility model provides the following technical solutions:
[0005] The utility model provides a vertical rotation and withdrawable indoor AC metal-enclosed switchgear, including a cabinet body. The cabinet body is provided with a main busbar chamber, a vertical rotation isolating vacuum circuit breaker chamber, an electrical connection chamber, and a pressure relief and exhaust chamber. The main busbar chamber, the vertical rotation isolating vacuum circuit breaker chamber, and the electrical connection chamber are arranged in sequence from top to bottom and are interconnected through a ventilation channel. The pressure relief and exhaust chamber is arranged above the electrical connection chamber and is communicated with the vertical rotation isolating vacuum circuit breaker chamber through a ventilation channel. The electrical connection chamber is provided with an air inlet. A lower fan for blowing the air entering from the air inlet towards the vertical rotation isolating vacuum circuit breaker chamber is arranged between the vertical rotation isolating vacuum circuit breaker chamber and the electrical connection chamber. An upper fan module for extracting the heat in the main busbar chamber is arranged at the top of the main busbar chamber.
[0006] In one embodiment, a detachable top cover plate is provided at the top of the cabinet body. The top cover plate is provided with an exhaust port, a bus chamber pressure relief and hot air exhaust duct, a two-phase bus avoidance port, and a single-phase bus avoidance port, all of which are communicated with the main bus chamber. The exhaust port, the two-phase bus avoidance port, and the bus chamber pressure relief and hot air exhaust duct are arranged in sequence from right to left. The single-phase bus avoidance port is arranged on the left side of the two-phase bus avoidance port and behind the bus chamber pressure relief and hot air exhaust duct. The upper fan module is arranged at the exhaust port. The two-phase bus avoidance port and the single-phase bus avoidance port are used to correspondingly pass through two main buses and one main bus to form a three-phase main bus.
[0007] In one embodiment, the switchgear further includes a three-phase main bus with outgoing ends. Two of the main buses pass through the two-phase bus avoidance port, and the other main bus passes through the single-phase bus avoidance port. The outgoing ends extend in the direction from the rear side to the front side of the cabinet body, and the lateral spacing between adjacent main bus outgoing ends is the same.
[0008] In one embodiment, a vertical rotation isolating vacuum circuit breaker is arranged in the vertical rotation isolating vacuum circuit breaker compartment. The vertical rotation isolating vacuum circuit breaker includes a handcart frame, three-phase pole columns, and an operating mechanism, all of which are arranged on the handcart frame. The handcart frame is detachably arranged in the cabinet body. The three-phase pole columns are arranged at intervals in the front-rear direction of the cabinet body and are all rotatably electrically connected to the three-phase main bus in one-to-one correspondence. The operating mechanism is used to control the working state of the three-phase pole columns.
[0009] In one embodiment, a middle panel is provided in front of the vertical rotation isolating vacuum circuit breaker compartment of the cabinet body. An observation window for observing the position and connection condition of the contacts of the three-phase pole columns is provided on the middle panel.
[0010] In one embodiment, the upper fan module includes an upper fan and an upper fan shroud. The upper fan shroud covers the exhaust port on the top cover plate, and the upper fan is detachably accommodated in the upper fan shroud.
[0011] In one embodiment, a lower fan mounting cover is provided at the bottom of the vertical rotation isolating vacuum circuit breaker compartment. The lower fan mounting cover extends in the front-rear direction of the cabinet body, and the lower fan is detachably arranged in the lower fan mounting cover.
[0012] In one embodiment, the lower fan mounting cover includes a cylindrical cavity for accommodating the lower fan. An air inlet hole is provided on the bottom surface of the cylindrical cavity, and an air guiding port communicated with the inner cavity of the cylindrical cavity is provided at the top of the cylindrical cavity.
[0013] In one embodiment, the pressure relief and exhaust compartment is provided with a pressure relief partition, and the pressure relief partition includes a lower partition and an upper partition formed by bending a plate member; the lower partition is provided with a ventilation channel, and the lower partition is arranged between the pressure relief and exhaust compartment and the vertical rotation isolation vacuum circuit breaker compartment; the upper partition is provided with a maintenance window, and the upper partition is arranged between the pressure relief and exhaust compartment and the main busbar compartment.
[0014] In one embodiment, the cabinet is further provided with a secondary instrument compartment and a small busbar compartment. The secondary instrument compartment is arranged in front of the main busbar compartment, and the small busbar compartment is arranged at the top of the cabinet and located at the front end of the cabinet.
[0015] The beneficial effects brought by the technical solution provided by the present utility model are as follows:
[0016] 1. For this vertical rotation withdrawable indoor AC metal-enclosed switchgear, by setting the compartments to communicate with each other, and arranging a lower fan below the vertical rotation isolation vacuum circuit breaker compartment and an upper fan module on the top of the main busbar compartment, the heat inside the cabinet is discharged outside the cabinet from bottom to top, improving the heat dissipation efficiency and effect, and solving the problem of failure caused by the over-standard increase in the operating temperature of the switchgear. In addition, the pressure relief and exhaust compartment is made to communicate with the vertical rotation isolation vacuum circuit breaker compartment, improving the utilization efficiency of the pressure relief and exhaust compartment.
[0017] 2. By arranging the three-phase rotating pole columns of the vertical rotation withdrawable isolation vacuum circuit breaker, and setting a panel at the front end of the cabinet, and an observation window on the panel, the cooperation between the three-phase pole columns and the lower static contacts can be directly observed, solving the problem of difficult judgment of the operating position and cooperation state of the switchgear.
[0018] 3. Three-phase electricity is led out from the space of the main busbar compartment to the outside. Through the staggered and lead wire setting, the three-phase main busbars are led out from the front of the cabinet top. This solves the problem that the busbar outlet structure distribution of the vertical rotation withdrawable indoor AC metal-enclosed switchgear in the longitudinal direction is restricted by the width and depth when installed face-to-face in a double row. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for description in the embodiments of the present utility model.
[0020] Figure 1 It is a three-dimensional view of the vertical rotation withdrawable indoor AC metal-enclosed switchgear provided by an embodiment of the present utility model;
[0021] Figure 2 It is an internal structure schematic diagram of the vertical rotation withdrawable indoor AC metal-enclosed switchgear provided by an embodiment of the present utility model;
[0022] Figure 3The top view of the vertical rotary-opening indoor AC metal-enclosed switchgear provided by an embodiment of the present utility model;
[0023] Figure 4 The structural schematic diagram of the top cover plate provided by an embodiment of the present utility model;
[0024] Figure 5 The structural schematic diagram of the pressure relief partition provided by an embodiment of the present utility model;
[0025] Figure 6 The structural schematic diagram of the upper fan module provided by an embodiment of the present utility model;
[0026] Figure 7 The structural schematic diagram of the lower fan installation cover provided by an embodiment of the present utility model;
[0027] Figure 8 The structural schematic diagram of the isolating vacuum circuit breaker provided by an embodiment of the present utility model. Detailed implementation manners
[0028] The embodiments of the present utility model will be described in more detail with reference to the accompanying drawings. Although some embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present utility model. It should be understood that the drawings and embodiments of the present utility model are only for exemplary purposes and are not used to limit the protection scope of the present utility model.
[0029] It should be understood that the various steps recorded in the method embodiments of the present utility model can be executed in different orders and / or executed in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present utility model is not limited in this regard.
[0030] The term "including" and its variations used herein are open-ended, that is, "including but not limited to". The term "connection" can be a direct connection or an indirect connection through an intermediate component (element). The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description.
[0031] It should be noted that the concepts such as "first" and "second" mentioned in the present utility model are only used to distinguish devices, modules or units, and are not used to limit that these devices, modules or units must be different devices, modules or units, nor are they used to limit the order of functions executed by these devices, modules or units or their interdependent relationships.
[0032] See Figures 1 to 8 Figures 1 to 8 , the present utility model provides a vertical rotation and removal type indoor AC metal enclosed switchgear 1000 (hereinafter referred to as "switchgear 1000"), which includes a cabinet body 100, a three-phase main busbar 200, a secondary instrument, a vertical rotation isolation vacuum circuit breaker compartment 130, a current transformer, a lower blower, and a small busbar and an upper blower module 300, all of which are arranged in the cabinet body 100. Among them, the lower blower is used to blow air upward to cool the vertical rotation isolation vacuum circuit breaker compartment 130, and the upper blower module 300 is used to extract the hot air in the cabinet body 100. By forming a ventilation channel from bottom to top and using a double blower, the heat dissipation function of the switchgear 1000 is realized, the heat dissipation efficiency and heat dissipation effect are improved, and the problem of failure caused by the over-standard increase of the operating temperature of the switchgear 1000 is avoided.
[0033] The cabinet body 100 is provided with a main busbar chamber 120, a vertical rotation isolation vacuum circuit breaker compartment 130, an electrical connection chamber 140, and a pressure relief and exhaust compartment 150. The main busbar chamber 120 is used to install the main busbar 200. The main busbar 200 is a three-phase main busbar 200, which is composed of copper bars. The outgoing ends of the three-phase main busbar 200 extend above the cabinet body 100 through leads. The current transformer is arranged at the lower end of the vertical rotation isolation vacuum circuit breaker compartment 130. The vertical rotation isolation vacuum circuit breaker 500 is movably installed in the vertical rotation isolation vacuum circuit breaker compartment 130 and is located above the current transformer. The vertical rotation isolation vacuum circuit breaker 500 includes a hand truck frame and three-phase pole columns 510 and an operating mechanism 520, all of which are arranged on the hand truck frame. The operating mechanism 520 is used to control the three-phase pole columns 510 to act and control the working state of the three-phase pole columns 510. The three-phase pole columns 510 can rotate 90° to realize the connection and separation of the upper and lower circuits. The three-phase pole columns 510 are arranged at intervals along the front and rear directions of the cabinet body 100 and are all rotatably electrically connected to the three-phase main busbar 200 and the current transformer in one-to-one correspondence. Among them, when the upper moving contact of the three-phase pole column 510 is engaged with the upper static contact connected to the main busbar 200, and the lower moving contact of the three-phase pole column 510 is engaged with the lower static contact on the current transformer, the upper and lower circuits are connected.
[0034] In one embodiment, the main busbar chamber 120, the vertical rotation isolating vacuum circuit breaker chamber 130, and the electrical connection chamber 140 are arranged in sequence from top to bottom along the height direction of the cabinet body 100 and are interconnected through ventilation channels. The pressure relief and exhaust chamber 150 is arranged above the electrical connection chamber 140 and on the left side of the vertical rotation isolating vacuum circuit breaker chamber 130 and the main busbar chamber 120. The pressure relief and exhaust chamber 150 is communicated with the vertical rotation isolating vacuum circuit breaker chamber 130 through a ventilation channel. The electrical connection chamber 140 is provided with an air inlet 141. The lower blower is arranged between the vertical rotation isolating vacuum circuit breaker chamber 130 and the electrical connection chamber 140 and is used to blow the air entering from the air inlet 141 towards the vertical rotation isolating vacuum circuit breaker chamber 130. The upper blower module 300 is arranged on the top of the main busbar chamber 120 and is used to extract the heat inside the cabinet body 100 outwards through the main busbar chamber 120.
[0035] In one embodiment, the pressure relief and exhaust chamber 150 is provided with a pressure relief partition 151. The pressure relief partition 151 is formed by bending a plate member into a lower partition 1511 and an upper partition 1512 that are connected to each other. The lower partition 1511 is provided with a ventilation channel 1513. The lower partition 1511 is arranged between the pressure relief and exhaust chamber 150 and the vertical rotation isolating vacuum circuit breaker chamber 130, so that part of the heat (hot air of the lower blower) in the vertical rotation isolating vacuum circuit breaker chamber 130 can enter the pressure relief and exhaust chamber 150 and be discharged upwards through the pressure relief and exhaust chamber 150. The upper partition 1512 is arranged between the pressure relief and exhaust chamber 150 and the main busbar chamber 120. The upper partition 1512 is provided with a maintenance window 1514, which is convenient for installing and maintaining the equipment in the main busbar chamber through the maintenance window.
[0036] In one embodiment, the upper blower module 300 includes an upper blower 320 and an upper blower shroud 310. The upper blower shroud 310 covers the air outlet of the top cover plate 110. The upper blower 320 is detachably received in the upper blower shroud 310. The upper blower 320 is provided with a horizontal handle 330 and a vertical handle 340 to facilitate the insertion and removal of the upper blower 320 for installation, disassembly, maintenance or replacement of the upper blower 320. <(
[0037] In one embodiment, the bottom of the vertical rotation isolating vacuum circuit breaker chamber 130 is provided with a lower blower mounting cover 400. The lower blower mounting cover 400 extends along the front-rear direction of the cabinet body 100. The lower blower (not shown, the same below) is detachably arranged in the lower blower mounting cover 400. The lower blower is detachably arranged, so that the lower blower can be maintained, repaired or replaced according to actual needs.
[0038] In one embodiment, the lower fan mounting cover 400 includes a cylindrical cavity 410 for accommodating the lower fan. The bottom surface of the cylindrical cavity 410 is provided with an air inlet hole 420, which is communicated with the electrical connection chamber 140. The top end of the cylindrical cavity 410 is provided with an air guiding port 430 communicated with the inner cavity of the cylindrical cavity. The lower fan mounting cover is fixed to the bottom of the vertical rotation isolating vacuum circuit breaker compartment 130 with the air guiding port facing the vertical rotation isolating vacuum circuit breaker compartment 130.
[0039] In addition, the cabinet body 100 is provided with a bottom panel, and a lower fan maintenance window 142 corresponding to the lower fan mounting cover 400 is provided on the bottom panel. The lower fan maintenance window 142 is communicated with the cylindrical cavity 410 to facilitate the plugging and unplugging of the lower fan and realize the maintenance or replacement of the lower fan.
[0040] Thus, by communicating each compartment with each other, arranging a lower fan below the vertical rotation isolating vacuum circuit breaker compartment 130 and arranging an upper fan module 300 at the top of the main busbar chamber 120, the heat in the cabinet body 100 is discharged from the bottom up outside the cabinet body 100, improving the heat dissipation efficiency and effect, and solving the problem of failure caused by the over-standard increase in the operating temperature of the switchgear 1000. In addition, by communicating the pressure relief and exhaust compartment 150 with the vertical rotation isolating vacuum circuit breaker compartment 130, when an arc fault occurs inside the switchgear 1000, the arc releases the electrical potential energy through the pressure relief channel to stabilize the voltage, protecting the equipment and operators. Moreover, when the switchgear 1000 is operating normally, the pressure relief and exhaust compartment 150 can also discharge part of the heat in the cabinet, making full use of the pressure relief and exhaust compartment 150. Thus, the heat in the cabinet can be effectively discharged, ensuring the normal operation of the equipment in the cabinet. Also, the power of the upper fan module 300 can be reduced, eliminating the need to use a large fan and avoiding the upper fan 320 occupying too much space on the top of the cabinet, which is beneficial to the miniaturization of the switchgear 1000.
[0041] Please combine Figure 3 and Figure 4 In one embodiment, a detachable top cover plate 110 is provided at the top end of the cabinet body 100. The top cover plate 110 is provided with an air outlet 114, a busbar chamber pressure relief and hot air exhaust duct 113, a two-phase busbar avoidance opening 111, and a single-phase busbar avoidance opening 112, all of which are communicated with the main busbar chamber 120. The air outlet 114, the two-phase busbar avoidance opening 111, and the busbar chamber pressure relief and hot air exhaust duct 113 are arranged in sequence from right to left. The single-phase busbar avoidance opening 112 is arranged on the left side of the two-phase busbar avoidance opening 111 and behind the busbar chamber pressure relief and hot air exhaust duct 113. The upper fan guard 310 is arranged at the air outlet 114. The two-phase busbar avoidance opening 111 and the single-phase busbar avoidance opening 112 are used to respectively pass through two main busbars 200 and one main busbar 200 to form a three-phase main busbar 200.
[0042] In one embodiment, the switchgear 1000 further includes a three-phase main busbar 200 each provided with an outgoing line terminal. Two of the main busbars 200 are passed through two-phase busbar avoidance openings 111, and the other main busbar 200 is passed through a single-phase busbar avoidance opening 112. The outgoing line terminals extend in the direction from the rear side to the front side of the cabinet body 100, and the lateral spacing between the outgoing line terminals of adjacent main busbars 200 is the same.
[0043] Thus, three-phase electricity is led out from the space of the main busbar chamber 120 to the outside of the cabinet top. Through the dislocation and lead arrangement of the main busbar 200, the three-phase main busbar 200 is led out from the front of the cabinet top. The problem that the busbar outgoing line structure distribution of the longitudinal main busbar 200 of the switchgear 1000 is restricted by the installation space width and depth during face-to-face double-row installation is solved. Among them, the top cover plate 110 is designed to be detachable, the cabinet top can be opened to form a maintenance space at the cabinet top, which is convenient for assembling and maintaining the switchgear 1000, and the layout of the cabinet top can also be adjusted according to the actual needs in combination with the internal structure of the cabinet.
[0044] In one embodiment, a middle panel 131 is provided in front of the vertical rotation isolating vacuum circuit breaker compartment 130 of the cabinet body 100, and an observation window 132 for observing the position and connection condition of the contacts of the three-phase pole columns 510 is provided on the middle panel 131.
[0045] In one embodiment, the cabinet body 100 further includes a secondary instrument compartment 170 and a small busbar chamber 160. The secondary instrument compartment 170 is provided in front of the main busbar chamber 120, and the small busbar chamber 160 is provided at the top end of the cabinet body 100 and located at the front end of the cabinet body 100, making full use of the installation space of the cabinet body 100 to realize the miniaturization of the switchgear 1000.
[0046] The above description is only the preferred embodiment of the present invention and the explanation of the applied technical principles. Those skilled in the art should understand that the scope of the present invention involved herein is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above inventive concept. For example, the technical solutions formed by mutually replacing the above features with the technical features (but not limited to) having similar functions in the present invention.
[0047] Although the subject matter has been described in language specific to structural features and / or methodological logical acts, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. On the contrary, the specific features and acts described above are only example forms for implementing the claims.
Claims
1. An indoor AC metal-enclosed switchgear with longitudinal rotation and displacement type, comprising a cabinet body, characterized in that, The cabinet body is provided with a main busbar chamber, a vertical rotation isolating vacuum circuit breaker chamber, an electrical connection chamber, and a pressure relief and exhaust chamber. The main busbar chamber, the vertical rotation isolating vacuum circuit breaker chamber, and the electrical connection chamber are arranged in sequence from top to bottom and are interconnected through ventilation channels. The pressure relief and exhaust chamber is arranged above the electrical connection chamber and is connected to the vertical rotation isolating vacuum circuit breaker chamber through a ventilation channel. The electrical connection chamber is provided with an air inlet, and a lower blower is arranged between the vertical rotation isolating vacuum circuit breaker chamber and the electrical connection chamber for blowing the air entering from the air inlet towards the vertical rotation isolating vacuum circuit breaker chamber. An upper blower module for extracting the heat in the main busbar chamber is arranged at the top of the main busbar chamber.
2. The vertical rotation and removal type indoor AC metal-enclosed switchgear according to claim 1, characterized in that, A detachable top cover plate is provided at the top of the cabinet body. The top cover plate is provided with an exhaust port, a busbar chamber pressure relief and hot air exhaust duct, a two-phase busbar avoidance opening, and a single-phase busbar avoidance opening, all of which are communicated with the main busbar chamber. The exhaust port, the two-phase busbar avoidance opening, and the busbar chamber pressure relief and hot air exhaust duct are arranged in sequence from right to left. The single-phase busbar avoidance opening is arranged on the left side of the two-phase busbar avoidance opening and behind the busbar chamber pressure relief and hot air exhaust duct. The upper blower module is arranged at the exhaust port. The two-phase busbar avoidance opening and the single-phase busbar avoidance opening are used for passing through two main busbars and one main busbar respectively to form a three-phase main busbar.
3. The vertical rotation and removal type indoor AC metal-enclosed switchgear according to claim 2, wherein It further includes a three-phase main busbar both provided with outgoing line ends. Among them, two-phase main busbars pass through the two-phase busbar avoidance opening, and the other-phase main busbar passes through the single-phase busbar avoidance opening. The outgoing line ends extend in the direction from the rear side to the front side of the cabinet body, and the lateral spacing between adjacent main busbar outgoing line ends is the same.
4. The vertical rotation and removal type indoor AC metal-enclosed switchgear according to claim 3, characterized in that, A vertical rotation isolating vacuum circuit breaker is arranged in the vertical rotation isolating vacuum circuit breaker chamber. The vertical rotation isolating vacuum circuit breaker includes a handcart frame, and three-phase pole columns and an operating mechanism both arranged on the handcart frame. The handcart frame is detachably arranged in the cabinet body. The three-phase pole columns are arranged at intervals along the front-rear direction of the cabinet body and are all rotatably and electrically connected to the three-phase main busbar in one-to-one correspondence. The operating mechanism is used to control the working state of the three-phase pole columns.
5. The vertical rotation and removal type indoor AC metal-enclosed switchgear according to claim 1, wherein A middle panel is provided in front of the vertical rotation isolating vacuum circuit breaker chamber of the cabinet body, and an observation window for observing the position and connection condition of the three-phase pole column contacts is arranged on the middle panel.
6. The vertical rotating and retractable indoor AC metal-enclosed switchgear according to claim 2, wherein The upper blower module includes an upper blower and an upper blower hood. The upper blower hood covers the exhaust port of the top cover plate, and the upper blower is detachably received in the upper blower hood.
7. The vertical rotation and retractable indoor AC metal-enclosed switchgear according to claim 1, characterized in that, A lower blower installation cover is arranged at the bottom of the vertical rotation isolating vacuum circuit breaker chamber. The lower blower installation cover extends along the front-rear direction of the cabinet body, and the lower blower is detachably arranged in the lower blower installation cover.
8. The vertical rotating and retractable indoor AC metal-enclosed switchgear according to claim 7, characterized in that, The lower blower installation cover includes a cylindrical cavity for receiving the lower blower. The bottom surface of the cylindrical cavity is provided with air inlet holes, and the top end of the cylindrical cavity is provided with a air guiding port communicated with the inner cavity of the cylindrical cavity.
9. The vertical rotating and retractable indoor AC metal-enclosed switchgear according to claim 1, characterized in that, The pressure relief and exhaust chamber is provided with a pressure relief partition board. The pressure relief partition board includes a lower partition board and an upper partition board formed by bending a plate member. The lower partition board is provided with a ventilation channel, and the lower partition board is arranged between the pressure relief and exhaust chamber and the vertical rotation isolating vacuum circuit breaker chamber. The upper partition board is provided with a maintenance window, and the upper partition board is arranged between the pressure relief and exhaust chamber and the main busbar chamber.
10. The vertical rotating and retractable indoor AC metal-enclosed switchgear according to claim 1, characterized in that, The cabinet body is also provided with a secondary instrument compartment and a small busbar compartment. The secondary instrument compartment is arranged in front of the main busbar compartment, and the small busbar compartment is arranged at the top end of the cabinet body and located at the front end of the cabinet body.