Direct-current high-speed circuit breaker

Abstract

The utility model relates to the technical field of direct-current high-speed circuit breakers, in particular to a direct-current high-speed circuit breaker, which comprises a direct-current high-speed circuit breaker main body, a protective shell is arranged on the outer side of the direct-current high-speed circuit breaker main body, a first limiting plate is arranged in the protective shell, and one side of the first limiting plate is fixedly connected with a mounting plate. According to the direct-current high-speed circuit breaker, through the arrangement of the protective shell, the direct-current high-speed circuit breaker main body can be conveniently protected, animals are prevented from making contact with the direct-current high-speed circuit breaker main body, and the animals are prevented from electric shock and death; the direct-current high-speed circuit breaker has the advantages that the direct-current high-speed circuit breaker main body is prevented from being damaged at the same time, the protection shell can be conveniently mounted through the first limiting plate, the mounting plate, the fixing plate, the fixing screw, the fixing nut and the baffle, and the direct-current high-speed circuit breaker main body can be conveniently cooled through the vent holes, the protection plate and the supporting rods.

Description

Technical Field

[0001] The utility model relates to the technical field of direct current high-speed circuit breakers, in particular to a direct current high-speed circuit breaker. Background Art

[0002] In the field of power distribution, driven by modern power electronics technology and distributed power sources, DC distribution networks have great development prospects. Common distributed power sources can generate DC power or be converted into DC power after rectification. If these power sources are connected to the DC distribution network, the conversion link will be greatly saved. Compared with the AC distribution network, the DC distribution network has many technical and economic advantages such as low line cost, small transmission loss, and high power supply reliability. DC high-speed circuit breakers, as DC protection equipment, are of great significance to ensure the safe operation of DC distribution networks. In order to effectively suppress the spread of fault current and ensure the safe operation of DC transmission and distribution networks and the normal operation of equipment, DC high-speed circuit breakers will become an effective or even the only technical means.

[0003] When a traditional DC high-speed circuit breaker is used, it is often directly installed in a suitable position. At this time, the DC high-speed circuit breaker is directly exposed to the air. Some animals will stay on this DC high-speed circuit breaker, which may cause the death of the animals and damage the DC high-speed circuit breaker. Therefore, a DC high-speed circuit breaker is proposed to address the above problems. Utility Model Content

[0004] The utility model aims to provide a DC high-speed circuit breaker to solve the problem that the main body of the DC high-speed circuit breaker is damaged due to the stay of animals.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A DC high-speed circuit breaker comprises a DC high-speed circuit breaker body, a protective shell is arranged on the outside of the DC high-speed circuit breaker body, a first limit plate is arranged in the protective shell, a mounting plate is fixedly connected to one side of the first limit plate, a fixing screw is arranged in the mounting plate, a fixing nut is spirally connected to the inner and outer sides of the top of the fixing screw, a fixing plate is fixedly connected to the bottom of the fixing nut, the outer side of the fixing plate is fixedly connected to the DC high-speed circuit breaker body, and a baffle is fixedly connected to the front of the mounting plate.

[0007] Preferably, current sensors are provided on both sides of the left and right sides of the protective shell, one end of the current sensor is fixedly connected to a second limit plate, one side of the second limit plate is fixedly connected to a sealing ring, the upper and lower ends of the second limit plate are fixedly connected to limit blocks, a bolt is provided in the limit block, one end of the bolt is fixedly connected to the protective shell, and the other end of the bolt is spirally connected to a knob on the outside.

[0008] Preferably, a uniformly distributed protective shell is opened on the top of the protective shell, a support rod is fixedly connected to the top of the protective shell, and a protective plate is fixedly connected to the top of the support rod.

[0009] Preferably, the top of the mounting plate is tightly fitted with the fixing plate, and a protective shell is provided on the inner and outer sides of one end of the mounting plate.

[0010] Preferably, fixing screws are provided at the lower part of the DC high-speed circuit breaker body, and evenly distributed fixing screws are provided in the fixing plate.

[0011] Preferably, one side of the sealing ring is tightly fitted with the protective shell, and the inside of the sealing ring is fixedly connected with the current sensor.

[0012] Preferably, symmetrically arranged bolts are provided on both upper and lower sides of the second limit plate, and one side of the knob is tightly fitted with the limit block.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, the protective shell is provided to conveniently protect the main body of the DC high-speed circuit breaker, prevent animals from contacting the main body of the DC high-speed circuit breaker, prevent animals from being electrocuted, and prevent the main body of the DC high-speed circuit breaker from being damaged. The protective shell can be conveniently installed by the first limit plate, the mounting plate, the fixing plate, the fixing screws, the fixing nuts and the baffle. The DC high-speed circuit breaker main body can be conveniently cooled by the vent holes, the protective plate and the support rods.

[0015] 2. In the utility model, the operating status of the DC high-speed circuit breaker body can be conveniently detected by the provided current sensor, so that the use of the DC high-voltage generator is more stable. The current sensor can be conveniently disassembled and maintained by the provided second limit plate, limit block, bolt, knob and sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the protective shell structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the installation structure of the fixed plate of the utility model;

[0019] Figure 4 For this utility model Figure 1 Schematic diagram of the structure at point A.

[0020] In the figure: 1-DC high-speed circuit breaker body, 2-protective shell, 3-first limit plate, 4-mounting plate, 5-fixing plate, 6-fixing screw, 7-fixing nut, 8-ventilation hole, 9-protective plate, 10-support rod, 11-current sensor, 12-second limit plate, 13-limit block, 14-bolt, 15-knob, 16-sealing ring, 17-baffle. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 , the utility model provides a technical solution:

[0023] A DC high-speed circuit breaker comprises a DC high-speed circuit breaker body 1, a protective shell 2 is arranged on the outer side of the DC high-speed circuit breaker body 1, a first limit plate 3 is arranged in the protective shell 2, a mounting plate 4 is fixedly connected to one side of the first limit plate 3, a fixing screw 6 is arranged in the mounting plate 4, a fixing nut 7 is spirally connected to the inner and outer sides of the top of the fixing screw 6, a fixing plate 5 is fixedly connected to the bottom of the fixing nut 7, the outer side of the fixing plate 5 is fixedly connected to the DC high-speed circuit breaker body 1, and a baffle 17 is fixedly connected to the front of the mounting plate 4. Through this arrangement, the DC high-speed circuit breaker can be conveniently protected.

[0024] Current sensors 11 are provided on both sides of the protective shell 2, one end of the current sensor 11 is fixedly connected to a second limit plate 12, one side of the second limit plate 12 is fixedly connected to a sealing ring 16, the upper and lower ends of the second limit plate 12 are fixedly connected to a limit block 13, a bolt 14 is provided in the limit block 13, one end of the bolt 14 is fixedly connected to the protective shell 2, and the other end of the bolt 14 is spirally connected to a knob 15 on the outside. Through this arrangement, the DC high-speed circuit breaker body 1 can be conveniently monitored, and the top of the protective shell 2 is provided with a uniformly distributed protective shell 2, the top of the protective shell 2 is fixedly connected to a support rod 10, and the top of the support rod 10 is fixedly connected A protective plate 9 is connected, the top of the mounting plate 4 is tightly fitted with the fixing plate 5, a protective shell 2 is provided on the inner and outer sides of one end of the mounting plate 4, a fixing screw 6 is provided at the bottom of the DC high-speed circuit breaker body 1, and the fixing plate 5 is provided with evenly distributed fixing screws 6. Through this arrangement, the DC high-speed circuit breaker body 1 can be easily dissipated. One side of the sealing ring 16 is tightly fitted with the protective shell 2, and the sealing ring 16 is fixedly connected with the current sensor 11. The second limit plate 12 is provided with symmetrically arranged bolts 14 on both sides, and one side of the knob 15 is tightly fitted with the limit block 13. Through this arrangement, the current sensor 11 can be conveniently monitored.

[0025] Working process: When using this DC high-speed circuit breaker, first fix the DC high-speed circuit breaker body 1 in a suitable position, and then turn on the circuit. At this time, put the protective shell 2 on the outside of the DC high-speed circuit breaker body 1, and then insert the first limit plate 3 and the mounting plate 4 into the bottom inner side of the protective shell 2. At this time, pass the fixing screw 6 through the mounting plate 4 and the fixing plate 6, and then turn the fixing screw 6 to make the fixing screw 6 and the fixing nut 7 spirally connected. At this time, fix the protective shell 2 on the outside of the DC high-speed circuit breaker body 1, and then protect the DC high-speed circuit breaker body 1 through the protective shell 2. When the DC high-speed circuit breaker body 1 is in use, a large amount of heat will be generated. At this time, the heat passes through the air vents. 8 is passed out, making the DC high-speed circuit breaker body 1 more stable to use. At the same time, the support rod 10 and the protective plate 9 can prevent rain and dust from entering the protective shell 2 through the air vent 8, thereby protecting the DC high-speed circuit breaker body 1. The set current sensor 11 can conveniently monitor the operating status of the DC high-speed circuit breaker body 1 to ensure the stability of the DC high-speed circuit breaker body 1. When the current sensor 11 needs to be maintained, the knob 15 is directly removed. At this time, the second limit plate 12 is taken out together with the current sensor 11, and then the current sensor 11 is maintained. After the maintenance is completed, the current sensor is installed back into the protective shell 3.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A DC high-speed circuit breaker, comprising a DC high-speed circuit breaker body (1), characterized in that: A protective shell (2) is provided on the outside of the DC high-speed circuit breaker body (1), a first limit plate (3) is provided inside the protective shell (2), a mounting plate (4) is fixedly connected to one side of the first limit plate (3), a fixing screw (6) is provided inside the mounting plate (4), a fixing nut (7) is spirally connected to the inner and outer sides of the top of the fixing screw (6), a fixing plate (5) is fixedly connected to the bottom of the fixing nut (7), the outer side of the fixing plate (5) is fixedly connected to the DC high-speed circuit breaker body (1), and a baffle (17) is fixedly connected to the front of the mounting plate (4).

2. A DC high-speed circuit breaker according to claim 1, characterized in that: Current sensors (11) are provided in both left and right sides of the protective shell (2); one end of the current sensor (11) is fixedly connected to a second limit plate (12); one side of the second limit plate (12) is fixedly connected to a sealing ring (16); upper and lower ends of the second limit plate (12) are fixedly connected to limit blocks (13); a bolt (14) is provided in the limit block (13); one end of the bolt (14) is fixedly connected to the protective shell (2); and the other end of the bolt (14) is spirally connected to the outer side of a knob (15).

3. A DC high-speed circuit breaker according to claim 1, characterized in that: The top of the protective shell (2) is provided with a uniformly distributed protective shell (2), the top of the protective shell (2) is fixedly connected to a support rod (10), and the top of the support rod (10) is fixedly connected to a protective plate (9).

4. A DC high-speed circuit breaker according to claim 1, characterized in that: The top of the mounting plate (4) is tightly fitted with the fixing plate (5), and a protective shell (2) is provided on the inner and outer sides of one end of the mounting plate (4).

5. A DC high-speed circuit breaker according to claim 1, characterized in that: The DC high-speed circuit breaker body (1) is provided with fixing screws (6) at the lower part thereof, and the fixing plate (5) is provided with fixing screws (6) which are evenly distributed.

6. A DC high-speed circuit breaker according to claim 2, characterized in that: One side of the sealing ring (16) is tightly fitted to the protective shell (2), and the inside of the sealing ring (16) is fixedly connected to the current sensor (11).

7. A DC high-speed circuit breaker according to claim 2, characterized in that: The second limiting plate (12) is provided with symmetrically arranged bolts (14) on both upper and lower sides, and one side of the knob (15) is tightly fitted with the limiting block (13).

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