Double-bus large-current switch cabinet with air cooling system

Abstract

The utility model discloses a double-bus heavy-current switch cabinet with an air cooling system, which belongs to the technical field of switch cabinets and comprises an air tank, a cable chamber is mounted at the bottom of the air tank, and a front mechanism chamber and a rear mechanism chamber are mounted at two ends of the air tank respectively. A top expansion bus chamber is installed at the top of the air box, an instrument chamber is installed at the position, adjacent to the top expansion bus chamber, of the front mechanism chamber, fans installed on an installation frame can be installed in the top expansion bus chamber and the rear mechanism chamber respectively through cooperation of an installation base and a clamping assembly, circulation of internal and external air is accelerated, internal heat is discharged along with the air, and the heat dissipation efficiency is improved. Meanwhile, two sets of ejection sleeves are additionally arranged and matched with the main bus and the auxiliary bus, so that when the main bus or the auxiliary bus breaks down, power supply of the whole equipment can be rapidly restored, stable operation of a power system is guaranteed, and the power supply stability of the whole structure is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to switchgear technology field more specifically, relate to a double busbar high current switchgear with air cooling system. BACKGROUND

[0002] High current switchgear is a kind of equipment for controlling and protecting high-voltage power system, mainly functions are current control, short-circuit protection and overload protection in high-voltage circuit.

[0003] Based on the above, the inventor finds that: in the operation process of power system, various electric components in cabinet body usually generate more heat, then the interior of cabinet needs to be heat dissipated to ensure the normal operation of electric components, and the interior of traditional switchgear is usually heat dissipated by opening several heat dissipation holes or increasing heat dissipation fins, and the heat dissipation effect is usually poor, simultaneously, the interior busbar of traditional high current switchgear is usually set as single busbar structure, when busbar fails, the whole equipment usually cannot quickly restore power supply, cannot ensure the stable operation of power system, and the power supply stability of overall structure is poor, therefore, in view of the above, the existing structure is researched and improved, a double busbar high current switchgear with air cooling system is provided to achieve the purpose of more practical value. SUMMARY

[0004] 1. Technical problem to be solved

[0005] In view of the problems in the prior art, the utility model aims at providing a double busbar high current switchgear with air cooling system, which can install the fan installed on the mounting bracket into the top expansion busbar chamber and rear mechanism chamber through the installation seat cooperation card set component, accelerate the circulation of internal and external air, discharge the internal heat with air, realize the effect of rapid heat dissipation, simultaneously, add two groups of top-out sleeve pipes and cooperate with main busbar and auxiliary busbar, so that when main busbar or auxiliary busbar fails, the whole equipment can quickly restore power supply, ensure the stable operation of power system, and improve the power supply stability of overall structure.

[0006] 2. Technical scheme

[0007] To solve the above problems, the utility model adopts the following technical scheme.

[0008] A double busbar high current switchgear with air cooling system, including air tank, the bottom of air tank is installed with cable chamber, the both ends of air tank are installed with front mechanism chamber and rear mechanism chamber respectively, the top of air tank is installed with top expansion busbar chamber, the adjacent place of front mechanism chamber and top expansion busbar chamber is installed with instrument chamber, the adjacent place of rear mechanism chamber and cable chamber is installed with pressure relief chamber, and the inside wall of top expansion busbar chamber bottom and the inside wall of rear mechanism chamber are both provided with two groups of heat dissipation mechanisms.

[0009] The heat dissipation mechanism comprises two mounting seats, two positioning grooves are formed in the top of the mounting seat, a clamping assembly is arranged in the positioning groove, a connecting seat is arranged on the top of the mounting seat, a clamping block is fixedly connected to the bottom of the two ends of the connecting seat, the clamping block is clamped and fixed in the corresponding positioning groove through the clamping assembly, a mounting frame is fixedly connected between the two connecting seats, and two fans are mounted on the mounting frame.

[0010] Further, an opening groove is formed in the inner wall of the side of the two positioning grooves close to each other, a guide groove is formed in the inner wall of the side of the opening groove, and a limiting groove is formed in the side of the mounting seat and communicated with the corresponding guide groove.

[0011] Further, the clamping assembly comprises a guide rod slidingly connected in the guide groove, a wedge block is fixedly connected to one end of the guide rod extending into the corresponding opening groove, a return spring is fixedly mounted between the wedge block and the inner wall of the opening groove, a pull rod is fixedly connected to the outer periphery of the other end of the guide rod, and one end of the pull rod extends to the outside of the mounting seat through the limiting groove.

[0012] Further, the side of the two clamping blocks close to each other is provided with a clamping groove, and the clamping groove is clamped and connected with the corresponding wedge block.

[0013] Further, the inner walls of the two ends of the gas tank are respectively provided with a disconnecting switch one and a disconnecting switch two, a circuit breaker body is arranged below the disconnecting switch one, an isolation mechanism one connected with the disconnecting switch one and a circuit breaker mechanism connected with the circuit breaker body are arranged in the front mechanism chamber, an isolation mechanism two connected with the disconnecting switch two is arranged in the rear mechanism chamber, two groups of ejection sleeves are arranged at the connection between the top expansion bus chamber and the gas tank, the disconnecting switch one is connected with the corresponding ejection sleeve through a main bus, and the disconnecting switch two is connected with the corresponding ejection sleeve through a secondary bus.

[0014] Further, the upper end of the circuit breaker body is connected with the disconnecting switch one and the disconnecting switch two through copper bars.

[0015] Further, the bottom of the gas tank is provided with a lower ejection inner cone sleeve at the connection with the cable chamber, and the lower ejection inner cone sleeve is connected with the lower end of the circuit breaker body through a copper bar.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] (1) The scheme, through the installation seat cooperation card set components, respectively installed in the top expansion bus chamber and rear mechanism chamber on the mounting bracket fan, fan access power and work, can speed up the circulation of internal and external air, and the internal heat can be discharged with the circulation of air, thereby realizing the effect of rapid heat dissipation, avoiding the temperature of the switch cabinet being too high to cause damage to each electrical component.

[0019] (2) The scheme, by adding two groups of ejection sleeve and cooperating with the main bus and auxiliary bus, when the main bus or auxiliary bus fails, one of the power circuits can be kept unobstructed, so that the entire device can quickly restore power supply, ensure the stable operation of the power system, and improve the power supply stability of the overall structure. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the overall structure schematic diagram of the utility model;

[0021] Figure 2 It is the internal structure schematic diagram of the utility model;

[0022] Figure 3 It is the heat dissipation mechanism position structure schematic diagram of the utility model;

[0023] Figure 4 It is the local sectional structure schematic diagram of the utility model.

[0024] Mark explanation in drawing:

[0025] 1, air tank;

[0026] 2, cable chamber;

[0027] 3, front mechanism chamber;

[0028] 4, rear mechanism chamber;

[0029] 5, top expansion bus chamber;

[0030] 6, instrument chamber;

[0031] 7, pressure relief chamber;

[0032] 8, heat dissipation mechanism; 801, mounting seat; 802, positioning groove; 803, card set component; 8031, guide rod; 8032, wedge block; 8033, reset spring; 8034, lever; 804, connecting seat; 805, clamping block; 806, mounting bracket; 807, fan;

[0033] 9, opening slot;

[0034] 10, guide slot;

[0035] 11, limiting slot;

[0036] 12, card slot;

[0037] 13, disconnecting switch one;

[0038] 14, disconnecting switch two;

[0039] 15, circuit breaker body;

[0040] 16, isolation mechanism one;

[0041] 17, circuit breaker mechanism;

[0042] 18, isolation mechanism two;

[0043] 19, ejection sleeve;

[0044] 20, main bus;

[0045] 21, auxiliary bus;

[0046] 22, lower inner cone sleeve. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model; obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0048] Embodiment:

[0049] Please refer to Figures 1-4 A double-bus large-current switch cabinet with a forced air cooling system, comprising a gas tank 1, a cable chamber 2 is installed at the bottom of the gas tank 1, a front mechanism chamber 3 and a rear mechanism chamber 4 are respectively installed at both ends of the gas tank 1, a top bus expansion chamber 5 is installed at the top of the gas tank 1, an instrument chamber 6 is installed at the adjacent position of the front mechanism chamber 3 and the top bus expansion chamber 5, a pressure relief chamber 7 is installed at the adjacent position of the rear mechanism chamber 4 and the cable chamber 2, and two groups of heat dissipation mechanisms 8 are arranged on the inner side wall of the bottom of the top bus expansion chamber 5 and the rear mechanism chamber 4.

[0050] The heat dissipation mechanism 8 comprises two mounting seats 801, two positioning grooves 802 are formed in the top of the mounting seat 801, a clamping assembly 803 is arranged in the positioning groove 802, a connecting seat 804 is arranged on the top of the mounting seat 801, a clamping block 805 is fixedly connected at the bottom of both ends of the connecting seat 804, the clamping block 805 is clamped and fixed in the corresponding positioning groove 802 through the clamping assembly 803, a mounting frame 806 is fixedly connected between the two connecting seats 804, and two fans 807 are installed on the mounting frame 806.

[0051] Please refer to Figure 4, the inner wall of one side of the two positioning grooves 802 is provided with an opening groove 9, the inner wall of one side of the opening groove 9 is provided with a guide groove 10, and one side of the mounting base 801 is provided with a limiting groove 11 in communication with the corresponding guide groove 10.

[0052] Referring to Figure 4 , the clamping assembly 803 comprises a guide rod 8031 slidably connected in the guide groove 10, one end of the guide rod 8031 extends into the corresponding opening groove 9 and is fixedly connected with a wedge block 8032, the wedge block 8032 and the inner wall of the opening groove 9 are fixedly connected with a reset spring 8033, the other end of the guide rod 8031 is fixedly connected with a lever 8034, and one end of the lever 8034 extends to the outside of the mounting base 801 through the limiting groove 11.

[0053] Referring to Figure 4 , the two clamping blocks 805 are provided with clamping grooves 12 on one side close to each other, and the clamping grooves 12 are connected with the corresponding wedge blocks 8032.

[0054] Referring to Figure 2 , the inner walls of both ends of the gas tank 1 are respectively provided with disconnecting switch one 13 and disconnecting switch two 14, the lower part of the disconnecting switch one 13 is provided with a circuit breaker main body 15, the front mechanism chamber 3 is provided with an isolation mechanism one 16 connected with the disconnecting switch one 13 and a circuit breaker mechanism 17 connected with the circuit breaker main body 15, the rear mechanism chamber 4 is provided with an isolation mechanism two 18 connected with the disconnecting switch two 14, two groups of ejection sleeves 19 are installed at the connection between the top expansion bus chamber 5 and the gas tank 1, the disconnecting switch one 13 is connected with the corresponding ejection sleeve 19 through the main bus 20, and the disconnecting switch two 14 is connected with the corresponding ejection sleeve 19 through the auxiliary bus 21.

[0055] Referring to Figure 2 , the upper end of the circuit breaker main body 15 is connected with the disconnecting switch one 13 and the disconnecting switch two 14 through copper bars.

[0056] Referring to Figure 2 , the bottom of the gas tank 1 is provided with a lower ejection inner cone sleeve 22 at the connection with the cable chamber 2, and the lower ejection inner cone sleeve 22 is connected with the lower end of the circuit breaker main body 15 through copper bars.

[0057] In use: by installing seat 801 cooperation card set component 803, the connecting seat 804 of the mounting bracket 806 both ends is clamped into the positioning groove 802, in the process of clamping, the connecting seat 804 extrudes the wedge block 8032, so that the wedge block 8032 moves to the opening slot 9 and makes the reset spring 8033 deformation, when the wedge block 8032 is aligned with the card slot 12 on the connecting seat 804, the elastic force of the reset spring 8033 that deforms pushes the wedge block 8032 into the card slot 12, so that the connecting seat 804 and the mounting seat 801 form the clamping connection, at this time, the fan 807 mounted on the mounting bracket 806 is mounted into the top busbar chamber 5 and the rear mechanism chamber 4 respectively, the fan 807 is connected to the power supply and works, which can speed up the circulation of internal and external air, and the internal heat can be discharged with the circulation of air, thereby realizing the effect of rapid heat dissipation, avoiding the case that the internal temperature of the switch cabinet is too high to cause damage to each electrical component.

[0058] By adding two groups of ejection sleeve 19 and cooperating with main bus 20 and auxiliary bus 21, the two groups of ejection sleeve 19 are communicated with disconnecting switch one 13 and disconnecting switch two 14 respectively, when one of the main bus 20 and the auxiliary bus 21 fails, the other can keep the power loop unobstructed, thereby the whole equipment can quickly restore power supply, ensure the stable operation of the power system, and improve the power supply stability of the overall structure.

[0059] Finally, it should be pointed out that: in the description of the utility model, it should be pointed out that, the terms "vertical", "upper", "lower", "horizontal" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, structure and operation, therefore it cannot be understood as a limitation on the utility model.

[0060] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, the terms "set", "install", "connect", "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific situation.

[0061] The above is only the preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited to this. Any skilled in the art can make equivalent substitution or change according to the technical scheme of the utility model and the improvement concept thereof within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A high-current switchgear with a double busbar and an air-cooled system, comprising an air box (1), characterized in that: The bottom of the air box (1) is equipped with a cable chamber (2), the two ends of the air box (1) are respectively equipped with a front mechanism chamber (3) and a rear mechanism chamber (4), the top of the air box (1) is equipped with a top expansion busbar chamber (5), the front mechanism chamber (3) and the top expansion busbar chamber (5) are adjacent to each other with an instrument chamber (6), the rear mechanism chamber (4) and the cable chamber (2) are adjacent to each other with a pressure relief chamber (7), and two sets of heat dissipation mechanisms (8) are provided on the bottom inner wall of the top expansion busbar chamber (5) and the inner side wall of the rear mechanism chamber (4). The heat dissipation mechanism (8) includes two mounting bases (801). The top of the mounting base (801) has two positioning slots (802). The positioning slots (802) are provided with locking components (803). The top of the mounting base (801) is provided with a connecting base (804). Both ends of the connecting base (804) are fixedly connected with locking blocks (805). The locking blocks (805) are locked and fixed in the corresponding positioning slots (802) by the locking components (803). The two connecting bases (804) are fixedly connected with a mounting bracket (806). Two fans (807) are mounted on the mounting bracket (806).

2. A high-current switchgear with a double busbar and air-cooled system according to claim 1, characterized in that: An opening groove (9) is provided on the inner wall of one side of the two positioning grooves (802) that are close to each other. A guide groove (10) is provided on one side of the inner wall of the opening groove (9). A limiting groove (11) is provided on one side of the mounting base (801) that communicates with the corresponding guide groove (10).

3. A high-current switchgear with a double busbar and air-cooled system according to claim 1, characterized in that: The locking assembly (803) includes a guide rod (8031) slidably connected in the guide groove (10). One end of the guide rod (8031) extends into the corresponding opening groove (9) and is fixedly connected to a wedge (8032). A reset spring (8033) is fixedly installed between the wedge (8032) and the inner wall of the opening groove (9). A lever (8034) is fixedly connected to the outer periphery of the other end of the guide rod (8031), and one end of the lever (8034) extends to the outside of the mounting base (801) through the limiting groove (11).

4. A high-current switchgear with a double busbar and air-cooled system according to claim 1, characterized in that: Both of the two card blocks (805) have card slots (12) on their sides that are close to each other, and the card slots (12) are engaged with the corresponding wedges (8032).

5. A high-current switchgear with a double busbar and air-cooled system according to claim 1, characterized in that: The inner walls of both ends of the gas box (1) are respectively equipped with a first disconnect switch (13) and a second disconnect switch (14). A circuit breaker body (15) is provided below the first disconnect switch (13). The front mechanism chamber (3) is equipped with a first disconnect mechanism (16) connected to the first disconnect switch (13) and a circuit breaker mechanism (17) connected to the circuit breaker body (15). The rear mechanism chamber (4) is equipped with a second disconnect mechanism (18) connected to the second disconnect switch (14). Two sets of ejector bushings (19) are installed at the connection between the top expansion busbar chamber (5) and the gas box (1). The first disconnect switch (13) is connected to the corresponding ejector bushing (19) through the main busbar (20). The second disconnect switch (14) is connected to the corresponding ejector bushing (19) through the auxiliary busbar (21).

6. A high-current switchgear with a double busbar and air-cooled system according to claim 5, characterized in that: The upper end of the circuit breaker body (15) is connected to disconnector one (13) and disconnector two (14) respectively via copper busbars.

7. A high-current switchgear with a double busbar and air-cooled system according to claim 1, characterized in that: A lower-outlet inner cone sleeve (22) is provided at the connection between the bottom of the gas box (1) and the cable chamber (2). The lower-outlet inner cone sleeve (22) is connected to the lower end of the circuit breaker body (15) through a copper busbar.

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