Resistor starting cabinet

Abstract

The utility model provides a resistor starting cabinet, which relates to the technical field of electrical equipment and comprises a cabinet body, an inflatable circuit breaker and a starting resistor. A mounting cavity is formed in the cabinet body; the inflatable circuit breaker and the starting resistor are both arranged in the mounting cavity, and the inflatable circuit breaker comprises an air box and a pole arranged on the side wall of the air box; and the starting resistor is vertically arranged on one side, far away from the gas tank, of the pole. According to the utility model, the problem that the resistor starting cabinet occupies too much installation space in the vertical direction or the transverse direction is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to a resistance starting cabinet. Background Art

[0002] At present, the resistor starter is an electrical device used in the process of motor starting, especially in high-voltage motor systems. Its main purpose is to reduce the motor starting current by inserting a resistor in series in the initial starting circuit, reduce the impact on the power grid, and protect the motor from damage caused by excessive starting current.

[0003] In the related art, the resistance starting cabinet includes two independent switch cabinets, one of which is used to integrate the high-voltage switch. It serves as the main power access point for the motor and is responsible for providing the power required for normal operation after the motor is started. It will quickly cut off the power supply when the system fails or power needs to be cut off to ensure safety. The other switch cabinet is used to integrate the starting resistor. When the motor starts, these resistors are connected to limit the starting current, gradually reduce the impact of the motor on the power grid at the moment of starting, reduce the voltage drop and current peak, and protect the motor and the power grid from damage.

[0004] However, the inventors realized that, in actual use, when installing a resistance starting cabinet, it is usually necessary to first fix the two switch cabinets and then electrically connect the two switch cabinets together. The whole process is not only cumbersome to install, but the design of the two switch cabinets causes the switch cabinets to occupy too much installation space vertically or horizontally, which greatly limits the installation in locations with limited installation space, causing inconvenience. Utility Model Content

[0005] The problem solved by the utility model is how to improve the problem that a resistance starting cabinet occupies too much installation space in the vertical or horizontal direction.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A resistance starting cabinet comprises a cabinet body, a gas-filled circuit breaker and a starting resistor; an installation cavity is provided inside the cabinet body; the gas-filled circuit breaker and the starting resistor are both arranged in the installation cavity, the gas-filled circuit breaker comprises an air box and a pole arranged on the side wall of the air box; the starting resistor is vertically arranged on a side of the pole away from the air box.

[0008] Optionally, the gas-filled circuit breaker includes a plurality of poles arranged in two upper and lower rows; two poles arranged in upper and lower rows constitute a switch, the switches and the starting resistors are arranged in one-to-one correspondence, and each switch is connected in parallel with the corresponding starting resistor.

[0009] Optionally, at least part of the starting resistor is arranged between the upper and lower poles.

[0010] Optionally, the resistor starting cabinet also includes a first cable, which is vertically arranged on a side of the starting resistor away from the gas-filled circuit breaker, one end of the first cable is located in the installation cavity and is respectively connected to one pole of the switch and one end of the corresponding starting resistor, and the other end of the first cable extends out of the installation cavity.

[0011] Optionally, the resistance starting cabinet also includes a first connecting plate, which includes a first supporting portion and a first connecting portion and a second connecting portion respectively arranged at both ends of the first supporting portion, the first supporting portion is horizontally arranged in the installation cavity, the first connecting portion is respectively connected to the pole and the corresponding starting resistor, and the second connecting portion is connected to the first cable.

[0012] Optionally, the resistance starting cabinet further includes an insulating connector, one end of which is connected to the inner wall of the installation cavity, and the other end of which is connected to the first supporting portion.

[0013] Optionally, the resistance starting cabinet also includes an AC transformer and a second cable, wherein the AC transformer is arranged in the installation cavity and located below the pole, one end of the AC transformer is respectively connected to the other pole of the switch and the other end of the corresponding starting resistor, one end of the second cable extends into the installation cavity and is connected to the other end of the AC transformer, and the other end of the second cable extends out of the installation cavity.

[0014] Optionally, the second cable is vertically arranged below the starting resistor.

[0015] Optionally, the resistance starting cabinet also includes a second connecting plate, the second connecting plate includes a second supporting portion and a third connecting portion, the second supporting portion and the third connecting portion are cross-arranged with each other, the second supporting portion is connected to the other end of the starting resistor, and the third connecting portion is respectively connected to the pole and the AC transformer.

[0016] Optionally, the resistance starting cabinet also includes a third cable, the second connecting piece also includes a fourth connecting part, the fourth connecting part and the end of the second supporting part away from the third connecting part are cross-arranged with each other, the third cable is parallel to the second cable and arranged at intervals, one end of the third cable extends into the installation cavity and is connected to the fourth connecting part, and the other end of the third cable extends out of the installation cavity.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] In the utility model, the cabinet body of the resistance starting cabinet is provided with an installation cavity inside, which can be used to install components. The resistance starting cabinet adopts a gas-filled circuit breaker. Since the gas-filled circuit breaker has good electrical isolation performance, there is no need to set up a separate installation space for placement. That is to say, the gas-filled circuit breaker and the starting resistor can be set together in the installation cavity. Compared with the structure of the existing resistance starting cabinet using two separate switch cabinets, the volume of the resistance starting cabinet can be effectively reduced, thereby reducing the vertical or horizontal space occupied by the resistance starting cabinet. At the same time, the gas-filled circuit breaker includes an air box and a pole arranged on the side wall of the air box. Since the pole is arranged on the side wall of the air box, compared with being arranged on the top or bottom of the air box, the vertical space occupied by the resistance starting cabinet is further reduced. The starting resistor is arranged vertically on the side of the pole away from the air box, and compared with being arranged horizontally in the installation cavity, the horizontal space occupied by the resistance starting cabinet is further reduced. In summary, the utility model effectively improves the problem that the resistance starting cabinet occupies too much installation space in the vertical or horizontal direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the interior of a resistance starting cabinet according to an embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the interface of the first connecting piece of an embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the interface of the second connecting piece of an embodiment of the utility model;

[0022] Figure 4 It is a schematic diagram of a resistance starting cabinet according to an embodiment of the utility model.

[0023] Description of reference numerals:

[0024] 1. Cabinet body; 11. Installation cavity; 12. First cabinet door; 13. Second cabinet door; 2. Inflatable circuit breaker; 21. Gas box; 22. Pole; 3. Starting resistor; 4. First cable; 5. First connecting piece; 51. First supporting part; 52. First connecting part; 53. Second connecting part; 6. Insulating connector; 7. AC transformer; 8. Second cable; 9. Second connecting piece; 91. Second supporting part; 92. Third connecting part; 93. Fourth connecting part; 10. Third cable. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0026] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the accompanying drawings showing multiple implementations of the utility model. It should be understood that the described implementation is only a part of the implementation of the utility model, not all implementations. Based on the implementation described in the utility model, all other implementations obtained by ordinary technicians in this field without spending creative labor will fall within the scope of protection of the utility model.

[0027] Unless otherwise defined, all technical and scientific terms used in the present invention have the same meaning as those generally understood by technicians in the technical field of the present invention; the terms used in the specification of the present invention in the application are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the terms "including", "comprising", "having", "having", "containing", "including" and the like in the specification and claims of the present invention and the above-mentioned drawings are open-ended words. Therefore, "including", "comprising", "having" are, for example, a method or device with one or more steps or elements, which has one or more steps or elements, but is not limited to having only these one or more elements. The terms "first", "second", etc. in the specification and claims of the present invention or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship. In addition, the terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, the meaning of "multiple" is two or more.

[0028] In the description of the present invention, it should be understood that the terms "center", "lateral", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] like Figure 1As shown, the resistance starting cabinet of the embodiment of the utility model includes a cabinet body 1, a gas-filled circuit breaker 2 and a starting resistor 3; an installation cavity 11 is provided inside the cabinet body 1; the gas-filled circuit breaker 2 and the starting resistor 3 are both arranged in the installation cavity 11, and the gas-filled circuit breaker 2 includes an air box 21 and a pole 22 arranged on the side wall of the air box 21; the starting resistor 3 is vertically arranged on the side of the pole 22 away from the air box 21.

[0030] After adopting the technical solution of this embodiment, the cabinet body 1 of the resistance starter cabinet is provided with an installation cavity 11 inside, which can be used to install components. The resistance starter cabinet adopts a gas-filled circuit breaker 2. Since the gas-filled circuit breaker 2 has good electrical isolation performance, it is not necessary to set up a separate installation space for placement. That is to say, the gas-filled circuit breaker 2 and the starting resistor 3 can be set together in the installation cavity 11. Compared with the structure of the existing resistance starter cabinet using two separate switch cabinets, the volume of the resistance starter cabinet can be effectively reduced, thereby reducing the vertical or horizontal space occupation of the resistance starter cabinet. At the same time, the gas-filled circuit breaker 2 includes an air box 21 and a pole 22 arranged on the side wall of the air box 21. Since the pole 22 is arranged on the side wall of the air box 21, compared with being arranged on the top or bottom of the air box 21, the vertical space occupation of the resistance starter cabinet is further reduced. The starting resistor 3 is vertically arranged on the side of the pole 22 away from the air box 21, compared with being arranged in the installation cavity 11 horizontally, the horizontal space occupation of the resistance starter cabinet is further reduced. In summary, the utility model effectively improves the problem that the resistance starting cabinet occupies too much installation space in the vertical or horizontal direction.

[0031] Furthermore, compared with the structure of the existing resistance starting cabinet using two separate switch cabinets, the resistance starting cabinet of this embodiment saves the electrical connection between the two switch cabinets, thereby improving the installation efficiency of the resistance switch cabinet.

[0032] In this embodiment, the pole 22 is covered with an insulating sleeve, which acts as an additional insulating barrier, significantly enhancing the electrical isolation of the pole 22 from the outside world and other live parts. This not only improves the safety of the equipment, but also ensures the reliability of long-term stable operation under high voltage environment. At the same time, the insulating sleeve can serve as a physical protection layer for the pole 22 to prevent mechanical damage, such as collision, scratching, etc., from causing damage to the pole 22, thereby extending the service life of the equipment.

[0033] Optionally, the gas-filled circuit breaker 2 includes two upper and lower rows of corresponding poles 22; two upper and lower corresponding poles 22 constitute a switch, the switches and the starting resistors 3 are arranged in one-to-one correspondence, and each switch is connected in parallel with the corresponding starting resistor 3.

[0034] In one embodiment, the gas box 21 is provided with two rows of poles 22 in the vertical direction, and each row is provided with three poles 22 and arranged correspondingly up and down, so as to correspond to the A phase, B phase and C phase of the inflatable circuit breaker 2, wherein the two poles 22 arranged correspondingly up and down constitute a switch, and at the same time, the switch and the starting resistor 3 are arranged one by one, and each switch is connected in parallel with the corresponding starting resistor 3. By forming a switch with two poles 22 arranged correspondingly up and down, the electrical clearance and creepage distance can be optimized to ensure the insulation performance and electrical safety under high voltage. The parallel configuration of each switch and the starting resistor 3 can better control the starting current, reduce the impact on the power grid, and protect the equipment from overcurrent damage.

[0035] Furthermore, through the compact vertical layout, space can be effectively utilized, especially in situations where there is room in the height direction but the plane space is limited. This design helps to reduce the overall size of the equipment and improve the adaptability of the installation site.

[0036] Optionally, at least a portion of the starting resistor 3 is disposed between the upper and lower poles 22 .

[0037] like Figure 1 As shown, the pole 22 is horizontally arranged on the side wall of the air box 21, that is, the axis of the pole 22 is arranged horizontally; the starting resistor 3 is vertically arranged in the installation cavity 11, that is, the axis of the starting resistor 3 is arranged vertically, and in the up and down directions, part of the starting resistor 3 is arranged between the upper and lower poles 22. Such an arrangement can achieve a more compact structural design, which is particularly beneficial for an installation environment with limited space.

[0038] Optionally, the resistance starting cabinet also includes a first cable 4, which is vertically arranged on the side of the starting resistor 3 away from the gas-filled circuit breaker 2, one end of the first cable 4 is located in the installation cavity 11 and is respectively connected to a pole 22 of the switch and one end of the corresponding starting resistor 3, and the other end of the first cable 4 extends out of the installation cavity 11.

[0039] like Figure 1 As shown, the first cable 4 is vertically arranged on the right side of the starting resistor 3, wherein the upper end of the first cable 4 is located in the installation cavity 11 and is respectively connected to a pole 22 of the switch and one end of the corresponding starting resistor 3, and the lower end of the first cable 4 extends out of the installation cavity 11.

[0040] In this way, laying cables vertically can maximize the use of vertical space and reduce lateral occupancy, which is helpful for compact design and installation of equipment, especially in space-constrained environments.

[0041] At the same time, by directly connecting the first cable 4 to the pole 22 of the switch and the corresponding starting resistor 3, the wiring structure can be simplified, making the wiring relationship clear, and facilitating installation and subsequent maintenance and repair work. When the first cable 4, the switch or the starting resistor 3 needs to be replaced or inspected, it can be quickly located and operated, reducing the complexity of maintenance. Due to the direct connection of the first cable 4 with the switch and the starting resistor 3, the intermediate links are reduced, which is conducive to the pure transmission of electrical signals, while reducing the risk of short circuits that may be caused by complex wiring, and improving the electrical safety and reliability of the system.

[0042] Optionally, the resistance starting cabinet also includes a first connecting plate 5, which includes a first supporting portion 51 and a first connecting portion 52 and a second connecting portion 53 respectively arranged at both ends of the first supporting portion 51, the first supporting portion 51 is horizontally arranged in the installation cavity 11, the first connecting portion 52 is respectively connected to the pole 22 and the corresponding starting resistor 3, and the second connecting portion 53 is connected to the first cable 4.

[0043] In this embodiment, the first connecting piece 5 is an integrated structure. Figure 2 As shown, the first connecting piece 5 includes a first supporting portion 51, a first connecting portion 52 and a second connecting portion 53. The cross-sectional shape of the first supporting portion 51 is a straight line, and its two ends along the length direction are respectively connected to the first connecting portion 52 and the second connecting portion 53, wherein the cross-sectional shape of the first connecting portion 52 is an L-shape, and the vertical sections of the first connecting portion 52 are respectively vertically connected to the first supporting portion 51 and the end of the pole 22 away from the air box 21, and the horizontal section of the first connecting portion 52 is connected to the upper end of the starting resistor 3; the cross-sectional shape of the second connecting portion 53 is a straight line, and the second connecting portion 53 and the first supporting portion 51 are connected at an obtuse angle.

[0044] In this way, the first support portion 51 is horizontally arranged in the installation cavity 11. This layout helps to efficiently organize various components in a limited space, especially for a compact design, which can more reasonably utilize the horizontal space, avoid cable crossing or confusion, and keep the internal structure neat.

[0045] At the same time, the first connecting piece 5, as an intermediary, centralizes the connection with the pole 22, the starting resistor 3 and the first cable 4, making the electrical connection more orderly, simplifying the wiring process, reducing the number of direct connection points, and facilitating installation and subsequent maintenance, inspection and troubleshooting. The unified connection through the first connecting piece 5 can reduce the risk of loosening of electrical contact points, improve the stability and reliability of the connection, reduce electrical failures caused by poor contact, and extend the service life of the equipment. As a standard part, the first connecting piece 5 can achieve standardized production and is easy to replace. It also supports modular design ideas. When it is necessary to replace or upgrade some components of the equipment, only the relevant modules need to be replaced without large-scale changes to the overall structure.

[0046] In other embodiments, the first connecting piece 5 may also be an assembly part, that is, the first supporting portion 51 is detachably connected to the first connecting portion 52 and the second connecting portion 53 respectively, and the connection method includes but is not limited to screw connection, plug-in or snap-in, which is not limited here and depends on actual needs.

[0047] Optionally, the resistance starting cabinet further includes an insulating connector 6 , one end of the insulating connector 6 is connected to the inner wall of the installation cavity 11 , and the other end of the insulating connector 6 is connected to the first supporting portion 51 .

[0048] In this embodiment, the number of insulating connectors 6 can be determined according to the lateral length of the first support portion 51. That is, the longer the lateral length of the first support portion 51, the greater the number of insulating connectors 6. Conversely, the shorter the length of the first support portion 51, the fewer the number of insulating connectors 6.

[0049] like Figure 1 As shown, there are two insulating connectors 6 , which are arranged in the installation cavity 11 at intervals along the lateral direction, the top of the insulating connector 6 is connected to the top wall of the installation cavity 11 , and the bottom of the insulating connector 6 is connected to the first support portion 51 .

[0050] In this way, the insulating connector 6 enhances the overall stability of the structure by physically supporting the first supporting portion 51, ensuring that during the operation of the device, especially when subjected to mechanical vibration or external force, the relevant components can remain stable and reduce the risk of displacement or deformation.

[0051] At the same time, the insulating connector 6 can provide electrical isolation to ensure that the current flows only through the designated conductive path without forming a path between undesired components. By arranging the insulating connector 6 between the top of the installation cavity 11 and the first support portion 51, electrical safety hazards such as arc and leakage can be effectively prevented, thereby improving the safety performance of the entire system.

[0052] Optionally, the resistance starting cabinet also includes an AC transformer 7 and a second cable 8. The AC transformer 7 is arranged in the installation cavity 11 and is located below the pole 22. One end of the AC transformer 7 is respectively connected to the other pole 22 of the switch and the other end of the corresponding starting resistor 3. One end of the second cable 8 extends into the installation cavity 11 and is connected to the other end of the AC transformer 7. The other end of the second cable 8 extends out of the installation cavity 11.

[0053] In this embodiment, the AC transformer 7 is disposed in the installation cavity 11 and connected to the inner wall of the installation cavity 11 through a bracket. Figure 1As shown, the AC transformer 7 is located as a whole below the pole 22, and the axis of the AC transformer 7 is arranged horizontally, wherein the upper connection contact of the AC transformer 7 is respectively connected to the other pole 22 of the switch and the other end of the corresponding starting resistor 3, one end of the second cable 8 extends into the installation cavity 11 and is connected to the lower connection contact of the AC transformer 7, and the other end of the second cable 8 extends out of the installation cavity 11.

[0054] In this way, the AC transformer 7 is disposed as a whole below the pole 22 and arranged in the horizontal direction, which fully utilizes the vertical space, contributes to the compact design of the equipment, reduces the floor space of the equipment, and is particularly beneficial for installation environments with limited space.

[0055] At the same time, the axis of the AC transformer 7 is arranged horizontally, which is convenient for connecting with the electrical components above and below, ensuring the accurate transmission of current information, and helping to achieve rapid response and protection to equipment failures such as overload and short circuit. One end of the second cable 8 extends into the installation cavity 11 and is connected to the connection contact below the AC transformer 7, and the other end extends out of the cavity. This design facilitates the wiring and replacement of the cable, making daily maintenance and future system upgrades simpler and faster.

[0056] Optionally, the second cable 8 is vertically arranged below the starting resistor 3 .

[0057] In this embodiment, the second cable 8 is arranged vertically and is located directly below the starting resistor 3. In this way, vertical wiring can effectively utilize vertical space, especially in an installation environment with limited horizontal space, which helps to reduce the footprint of the equipment, making the entire system more compact and adapting to application scenarios with limited space.

[0058] At the same time, the starting resistor 3 generates heat during operation, and the hot air flows upwards first. The second cable 8 is arranged below it, which helps to avoid direct exposure of the cable to the high temperature area and reduce the thermal impact. Moreover, the cables are arranged vertically, so that maintenance personnel can directly contact the cables when inspecting or replacing the cables, without excessively interfering with other components, thereby improving the convenience and efficiency of maintenance.

[0059] Optionally, the resistance starting cabinet also includes a second connecting plate 9, which includes a second supporting portion 91 and a third connecting portion 92. The second supporting portion 91 and the third connecting portion 92 are cross-arranged with each other, the second supporting portion 91 is connected to the other end of the starting resistor 3, and the third connecting portion 92 is respectively connected to the pole 22 and the AC transformer 7.

[0060] In this embodiment, the second connecting piece 9 is an integrated structure. Figure 3As shown, the second connecting piece 9 includes a second supporting portion 91 and a third connecting portion 92, wherein the cross-sectional shape of the second supporting portion 91 is a straight line, and the cross-sectional shape of the third connecting portion 92 is a Z-shaped shape, the second supporting portion 91 is vertically connected to the upper end of the third connecting portion 92, the top of the second supporting portion 91 is connected to the lower end of the starting resistor 3, and the left end face of the third connecting portion 92 is respectively connected to the end of the pole 22 away from the air box 21 and the connecting contact of the AC transformer 7 located above.

[0061] In this way, the cross-layout of the second support portion 91 and the third connection portion 92 enables more connection functions to be integrated more compactly within a limited installation space, reduces the size of the device, and optimizes the internal structure layout, which is particularly important for applications with limited space. The second connection piece 9 integrates multiple connection points, reduces the use of independent connectors, simplifies circuit wiring, reduces installation complexity, improves installation efficiency, and is also convenient for maintenance and troubleshooting.

[0062] At the same time, the direct connection between the second support part 91 and the lower end of the starting resistor 3, and the connection between the third connection part 92 and the pole 22 and the contact above the AC transformer 7, form a stable electrical connection structure, ensure the reliability and stability of current transmission, and reduce electrical failures caused by loose connections.

[0063] Optionally, the resistance starting cabinet also includes a third cable 10, and the second connecting piece 9 also includes a fourth connecting part 93. The fourth connecting part 93 and the end of the second supporting part 91 away from the third connecting part 92 are cross-arranged with each other. The third cable 10 is parallel to the second cable 8 and is arranged at intervals. One end of the third cable 10 extends into the installation cavity 11 and is connected to the fourth connecting part 93, and the other end of the third cable 10 extends out of the installation cavity 11.

[0064] like Figure 3 As shown, the cross-sectional shape of the fourth connection portion 93 is V-shaped, and the end of the second support portion 91 away from the third connection portion 92 is connected to the upper end of the fourth connection portion 93 at an obtuse angle; the third cable 10 is parallel to the second cable 8 and arranged at intervals, that is, the third cable 10 is also arranged vertically, wherein one end of the third cable 10 extends into the installation cavity 11 and is connected to the lower end of the fourth connection portion 93, and the other end of the third cable 10 extends out of the installation cavity 11.

[0065] In this way, the fourth connection portion 93 and the end of the second support portion 91 away from the third connection portion 92 are arranged crosswise, and the third cable 10 and the second cable 8 are arranged in parallel and at intervals, which can maximize the use of the limited space in the installation cavity 11, so that the electrical components can be reasonably arranged without increasing the volume of the equipment, which is particularly suitable for application scenarios with compact space. Such a layout also helps to sort and organize the direction of cables, reduce mutual interference between cables, and improve the neatness and aesthetics of the system. The parallel and spaced cables can also reduce electromagnetic interference (EMI) and ensure the clarity and stability of signal transmission.

[0066] At the same time, the clear connection between the third cable 10 and the fourth connecting portion 93 facilitates technical personnel to perform troubleshooting and repairs, shortens maintenance time, and reduces maintenance difficulty.

[0067] Optionally, the cabinet body 1 includes cabinet doors, and the number of cabinet doors is not limited and depends on actual needs. Figure 4 As shown, the cabinet body includes a first cabinet door 12 and a second cabinet door 13, and the first cabinet door 12 and the second cabinet door 13 are arranged in a lateral interval. In this way, the cabinet body 1 can be opened through the first cabinet door 12 and the second cabinet door 13 to install or repair components inside the cabinet body 1.

[0068] The reader should understand that in the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0069] Although the utility model is disclosed as above, the protection scope of the utility model is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the utility model, and these changes and modifications will fall within the protection scope of the utility model.

Claims

1. A resistance starting cabinet, characterized in that: The invention comprises a cabinet body (1), a gas-filled circuit breaker (2) and a starting resistor (3); a mounting cavity (11) is provided inside the cabinet body (1); the gas-filled circuit breaker (2) and the starting resistor (3) are both arranged in the mounting cavity (11); the gas-filled circuit breaker (2) comprises an air box (21) and a pole (22) arranged on a side wall of the air box (21); the starting resistor (3) is arranged vertically on a side of the pole (22) away from the air box (21).

2. The resistance starting cabinet according to claim 1 is characterized in that: The gas-filled circuit breaker (2) comprises a plurality of poles (22) arranged in two upper and lower rows corresponding to each other; two poles (22) arranged in upper and lower rows corresponding to each other constitute a switch, the switches and the starting resistors (3) are arranged in one-to-one correspondence, and each switch is connected in parallel with the corresponding starting resistor (3).

3. The resistance starting cabinet according to claim 2 is characterized in that: At least part of the starting resistor (3) is arranged between the upper and lower poles (22).

4. The resistance starting cabinet according to claim 2 is characterized in that: It also comprises a first cable (4), the first cable (4) being arranged vertically on a side of the starting resistor (3) away from the gas-filled circuit breaker (2), one end of the first cable (4) being located in the installation cavity (11) and being respectively connected to one of the poles (22) of the switch and one end of the corresponding starting resistor (3), and the other end of the first cable (4) extending out of the installation cavity (11).

5. The resistance starting cabinet according to claim 4 is characterized in that: The invention also comprises a first connecting piece (5), wherein the first connecting piece (5) comprises a first supporting portion (51) and a first connecting portion (52) and a second connecting portion (53) respectively arranged at two ends of the first supporting portion (51), wherein the first supporting portion (51) is arranged transversely in the installation cavity (11), the first connecting portion (52) is respectively connected to the pole (22) and the corresponding starting resistor (3), and the second connecting portion (53) is connected to the first cable (4).

6. The resistance starting cabinet according to claim 5, characterized in that: It also comprises an insulating connector (6), one end of which is connected to the inner wall of the installation cavity (11), and the other end of which is connected to the first supporting portion (51).

7. The resistance starting cabinet according to claim 4, characterized in that: It also includes an AC transformer (7) and a second cable (8), wherein the AC transformer (7) is arranged in the installation cavity (11) and is located below the pole (22), one end of the AC transformer (7) is respectively connected to the other pole (22) of the switch and the other end of the corresponding starting resistor (3), one end of the second cable (8) extends into the installation cavity (11) and is connected to the other end of the AC transformer (7), and the other end of the second cable (8) extends out of the installation cavity (11).

8. The resistance starting cabinet according to claim 7, characterized in that: The second cable (8) is arranged vertically below the starting resistor (3).

9. The resistance starting cabinet according to claim 7, characterized in that: The device also includes a second connecting piece (9), the second connecting piece (9) including a second supporting portion (91) and a third connecting portion (92), the second supporting portion (91) and the third connecting portion (92) being arranged crosswise with each other, the second supporting portion (91) being connected to the other end of the starting resistor (3), and the third connecting portion (92) being connected to the pole (22) and the AC transformer (7), respectively.

10. The resistance starting cabinet according to claim 9, characterized in that: It also includes a third cable (10), and the second connecting piece (9) also includes a fourth connecting portion (93), the fourth connecting portion (93) and an end of the second supporting portion (91) away from the third connecting portion (92) are arranged to cross each other, the third cable (10) and the second cable (8) are arranged in parallel and at intervals, one end of the third cable (10) extends into the installation cavity (11) and is connected to the fourth connecting portion (93), and the other end of the third cable (10) extends out of the installation cavity (11).

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