Three-phase conductor commutation structure and busbar structure

Abstract

The utility model discloses a kind of three-phase conductor commutation structure, including shell, first basin type insulator, first commutation component, second commutation component and third commutation component. First conductor and third conductor can be commutated by first commutation component and third commutation component. In addition, when commutation operation is carried out, three-phase conductor can be connected to the three-phase conductor of docking equipment in the form of plug-in with corresponding commutation component and realize commutation, that is, busbar can be connected in the mode of three-phase conductor plug-in to contact seat and realize commutation function, simple structure and convenient operation. In addition, the utility model further discloses a kind of busbar structure with the above-mentioned three-phase conductor commutation structure.

Description

Technical Field

[0001] This utility model relates to the field of power system technology, and in particular to a three-phase conductor commutation structure and busbar structure. Background Technology

[0002] Existing busbar structures mostly adopt a three-phase shared-enclosure structure. When connecting two sets of equipment in the busbar structure, a phase-switching operation is usually required. Specifically, the A and C phases of the three-phase conductors in the two pieces of equipment are in different positions. Therefore, a phase-switching structure is needed to interchange the phase sequence of the A and C phases of the three-phase conductors in the two pieces of equipment. However, existing technologies require multiple modules to be combined to adjust the phase during the phase-switching process, which is complex to install and prone to introducing safety hazards. The flexibility of the phase-switching operation is also poor, especially when the three-phase conductors are arranged longitudinally but horizontally connected, the phase-switching structure of the three-phase conductors is even more complex and the phase-switching operation is even more difficult. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a three-phase conductor commutation structure, which is simple in structure and can facilitate the commutation operation of the busbar structure.

[0004] According to an embodiment of the present invention, a three-phase conductor commutation structure includes: a housing having a sealed mounting cavity, wherein a first conductor, a third conductor, and a second conductor are arranged side-by-side from front to back within the mounting cavity; a first basin-type insulator, sealed and mounted on the right side of the housing, wherein three first inserts arranged in an equilateral triangle are mounted on the first basin-type insulator, wherein two of the first inserts are arranged at intervals from front to back and located above the other first insert, and among the three first inserts, a first contact, a second contact, and a third contact are sequentially mounted in a clockwise direction starting from the lowest first insert; and a first commutation assembly including a first straight conductor, a first connector, and a first joint, wherein the first straight conductor is fixedly mounted on the first conductor, and the first connector is mounted on the first straight conductor and extends downward. The first connector is installed at the lower end of the first connector and inserted into the first contact seat; the second commutation assembly includes a second straight conductor, a second connector, and a second connector. The second straight conductor is fixedly installed on the second conductor, the second connector is installed on the second straight conductor and extends upward, and the second connector is installed at the upper end of the second conductor and inserted into the second contact seat; the third commutation assembly includes a third straight conductor, a third connector, and a third connector. The third straight conductor is fixedly installed on the third conductor, and the length of the third straight conductor is less than the length of the first straight conductor. The third connector is installed on the third straight conductor and extends upward in an arc shape with an opening facing the first connector. The third connector is installed at the upper end of the third connector and inserted into the third contact seat.

[0005] According to the three-phase conductor commutation structure of this utility model embodiment, it has at least the following features:

[0006] Beneficial effects:

[0007] In the three-phase conductor commutation structure of this utility model embodiment, the first conductor and the third conductor can be commutated by the first commutation component and the third commutation component. Since the first commutation component is fixedly installed on the first conductor and plugged into the first contact, the second commutation component is fixedly installed on the second conductor and plugged into the second contact, and the third commutation component is fixedly installed on the third conductor and plugged into the third contact, during the commutation operation, the three-phase conductors can be connected to the three-phase conductors of the docking equipment in a plug-in manner through the corresponding commutation components to achieve commutation. In other words, the busbar can be connected by plugging the three-phase conductors into the contact to achieve the commutation function, resulting in a simple structure and convenient operation.

[0008] According to some embodiments of the present invention, the third connector is an arc shape with an opening facing the first straight conductor, and the inner diameter of the arc of the third connector is the same as the diameter of the first straight conductor.

[0009] According to some embodiments of the present invention, the length of the third straight conductor is less than the length of the second straight conductor, the second connector is connected to the second straight conductor and is arranged inclined forward from bottom to top, and the first connector is connected to the first straight conductor and is arranged inclined backward from top to bottom.

[0010] According to some embodiments of the present invention, the first insert located at the bottom is provided with a first commutation conductor arranged inclined forward from bottom to top, and the first contact seat is installed at the front end of the first commutation conductor; the first insert located at the front is provided with a third commutation conductor arranged inclined backward from bottom to top, and the third contact seat is installed at the rear end of the third commutation conductor.

[0011] According to some embodiments of the present invention, the first contact seat is located directly below the third contact seat, and the first connector is located directly below the second connector.

[0012] According to some embodiments of the present invention, the first connector, the second connector, and the third connector are all arranged in a straight line along the left-right direction, and in the up-down direction, the horizontal height of the first connector, the second connector, and the third connector increases sequentially.

[0013] According to some embodiments of the present invention, a second basin-type insulator is sealed and installed at the bottom of the housing, and three second inserts are installed on the second basin-type insulator. The first conductor, the second conductor, and the third conductor are respectively installed on the three second inserts.

[0014] According to some embodiments of the present invention, the first conductor, the second conductor, and the third conductor each have a vertical portion arranged in the up-down direction. The three vertical portions are arranged sequentially from front to back at intervals. Each vertical portion has a commutation connection portion arranged facing the right side. The three commutation connection portions are located at the same horizontal height. The first straight conductor, the second straight conductor, and the third straight conductor are installed on the three commutation connection portions in a one-to-one correspondence.

[0015] According to some embodiments of the present invention, three second inserts are arranged in an equilateral triangle, wherein two second inserts are spaced apart along the front-back direction and located to the right of another second insert; the first conductor, the second conductor, and the third conductor each have a mounting portion connected to the lower end of the vertical portion, wherein the mounting portion of the first conductor is arranged inclined to the right from top to bottom and extends backward to the second insert installed at the foremost end; the mounting portion of the second conductor is arranged inclined to the right from top to bottom and extends forward to the second insert installed at the rearmost end; the mounting portion of the third conductor is arranged inclined to the left from top to bottom and installed at the second insert at the leftmost end.

[0016] According to the busbar structure of the embodiments of the present invention, a three-phase conductor commutation structure of any of the above embodiments is provided.

[0017] The busbar structure according to the embodiments of this utility model has at least the following beneficial effects:

[0018] By employing a three-phase conductor commutation structure according to any of the above embodiments, the first and third conductors can be commutated using a first commutation component and a third commutation component. During commutation, the three-phase conductors can be connected to the three-phase conductors of the docking equipment via plug-in connections using the corresponding commutation components to achieve commutation. In other words, the busbar can be connected and commutated by plugging the three-phase conductors into the contact socket, resulting in a simple structure and convenient operation. This makes busbar commutation more convenient.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic diagram of the busbar structure according to an embodiment of the present utility model;

[0022] Figure 2 This is an internal schematic diagram of the busbar structure according to an embodiment of the present utility model;

[0023] Figure 3 This is a schematic diagram of the three-phase conductor commutation structure according to an embodiment of the present invention;

[0024] Figure 4 for Figure 3 Top view of the commutation structure of a three-phase conductor;

[0025] Figure 5 This is a partial structural schematic diagram of the three-phase conductor commutation structure according to an embodiment of the present invention;

[0026] Figure 6 for Figure 5 Right side view of a local structure in the middle;

[0027] Figure 7 This is another partial structural schematic diagram of the three-phase conductor commutation structure according to an embodiment of the present utility model;

[0028] Figure 8 for Figure 7 Left side view of a local structure;

[0029] Figure 9 This is a schematic diagram of the three-phase conductor of this utility model.

[0030] Figure label:

[0031] Housing 100, mounting cavity 101, first conductor 110, second conductor 120, third conductor 130, vertical part 140, phase switching connection part 141, mounting part 150;

[0032] First basin-type insulator 200, first contact seat 210, first commutation conductor 211, second contact seat 220, third contact seat 230, third commutation conductor 231;

[0033] First commutation assembly 300, first straight conductor 310, first connector 320, first joint 330;

[0034] Second commutation assembly 400, second straight conductor 410, second connector 420, second joint 430;

[0035] Third commutation assembly 500, third straight conductor 510, third connector 520, third joint 530;

[0036] Second pot type insulator 600;

[0037] Docking equipment 700. Detailed Implementation

[0038] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0039] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0041] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0042] Reference Figures 1 to 8One embodiment of this utility model proposes a three-phase conductor commutation structure, including a housing 100, a first basin-type insulator 200, a first commutation component 300, a second commutation component 400, and a third commutation component 500. The housing 100 has a sealed mounting cavity 101, in which a first conductor 110, a third conductor 130, and a second conductor 120 are arranged side by side from front to back. A first basin-type insulator 200 is sealed and installed on the right side of the housing 100. Three first inserts are installed on the first basin-type insulator 200 in an equilateral triangle arrangement, wherein two first inserts are arranged at intervals from front to back and are located above the other first insert. Among the three first inserts, starting from the bottom first insert, a first contact 210, a second contact 220, and a third contact 230 are installed in a clockwise direction. The first commutation assembly 300 includes a first straight conductor 310, a first connector 320, and a first joint 330. The first straight conductor 310 is fixedly installed on the first conductor 110, the first connector 320 is installed on the first straight conductor 310 and extends downward, and the first joint 330 is installed on the first connector 110. The lower end of body 320 is inserted into the first contact 210; the second commutation assembly 400 includes a second straight conductor 410, a second connector 420 and a second connector 430. The second straight conductor 410 is fixedly installed on the second conductor 120. The second connector 420 is installed on the second straight conductor 410 and extends upward. The second connector 430 is installed on the upper end of the second conductor 120 and inserted into the second contact 220; the third commutation assembly 500 includes a third straight conductor 510, a third connector 520 and a third connector 530. The third straight conductor 510 is fixedly installed on the third conductor 130, and the length of the third straight conductor 510 is less than the length of the first straight conductor 310. The third connector 520 is installed on the third straight conductor 510 and extends upward in an arc shape with an opening facing the first connector 320. The third connector 530 is installed on the upper end of the third connector 520 and inserted into the third contact 230.

[0043] In the three-phase conductor commutation structure of this utility model embodiment, the first contact 2100, the second contact 210, and the third contact 230 correspond one-to-one with the first conductor 110, the second conductor 120, and the third conductor 130. The first insert where the first contact 210 is located is located below and behind the first insert where the third contact 230 is located. The first conductor 110, the third conductor 130, and the second conductor 120 are arranged sequentially from front to back, that is, the first conductor 110 is located in front of the third conductor 130. The first conductor 110 can be connected to the first contact 210 through the first commutation component 300, the second conductor 120 can be connected to the second contact 220 through the second commutation component 400, and the third conductor 130 can be connected to the third contact 230 through the third commutation component 500. Thus, the first conductor 110 and the third conductor 130 can be commutated through the first commutation component 300 and the third commutation component 500. Furthermore, since the first commutation component 300 is fixedly installed on the first conductor 110 and plugged into the first contact 210, the second commutation component 400 is fixedly installed on the second conductor 120 and plugged into the second contact 220, and the third commutation component 500 is fixedly installed on the third conductor 130 and plugged into the third contact 230, during the commutation operation, the three-phase conductors can be connected to the three-phase conductors of the docking device 700 through the corresponding commutation components in a plug-in manner to achieve commutation. In other words, the busbar can be connected by plugging the three-phase conductors into the contact to achieve the commutation function, which is simple in structure and convenient in operation.

[0044] Specifically, in the first commutation assembly 300, the first straight conductor 310 is fixedly installed on the first conductor 110, and the first connector 320 is installed on the first straight conductor 310 and extends downward, so that when the first connector 330 is installed at the lower end of the first connector 320, it can be located below the first straight conductor 310 and be inserted into the lowermost first contact 210, thereby realizing the connection between the first conductor 110 and the first contact 210. In the third commutation assembly 500, the third straight conductor 510 is fixedly installed on the third conductor 130 and its length is less than that of the first straight conductor 310, so that when the third connector 520 is installed on the first straight conductor 310, there will be no interference between it and the first connector 320, thus reserving space for the installation of the third connector 520. In addition, the third connector 520 is installed on the third straight conductor 510 and extends upward in an arc shape with its opening facing the first connector 320, which can further reduce the distance between the first straight conductor 310 and the third straight conductor 510, that is, it can reduce the arrangement distance between the first conductor 110 and the third conductor 130. Furthermore, when the third connector 530 is installed on the upper end of the third connector 520, it can be located above the third straight conductor 510, so that the third connector 530 is located above the first connector 330 and can be plugged into the third plug, thereby realizing the connection between the third conductor 130 and the third contact 230.

[0045] It is understandable that in practical applications, the first conductor 110, the second conductor 120, and the third conductor 130 can be phase A, phase B, and phase C, respectively. Thus, the phase sequence of phase A and phase C conductors can be interchanged by this three-phase conductor commutation structure.

[0046] It is understood that in the first commutation assembly 300, the first straight conductor 310 and the first conductor 110, the first connector 320 and the first straight conductor 310, and the first joint 330 and the first connector 320 can all be fixedly installed by screw connection. Of course, snap-fit, welding, or other connection methods can also be used for connection and installation, and this utility model does not specifically limit the connection. Similarly, in the second commutation assembly 400, the second straight conductor 410 and the second conductor 120, the second connector 420 and the second straight conductor 410, and the second joint 430 and the second connector 420 can all be fixedly installed by screw connection. Of course, snap-fit, welding, or other connection methods can also be used for connection and installation, and this utility model does not specifically limit the connection. In the third commutation assembly 500, the third straight conductor 510 and the third conductor 130, the third connector 520 and the third straight conductor 510, and the third connector 530 and the third connector 520 can all be fixedly installed by screw connection. Of course, in addition, snap-fit, welding or other connection methods can also be used for connection and installation. This utility model does not make specific limitations on this.

[0047] Reference Figures 3 to 6 In some embodiments, the third connector 520 is an arc shape with an opening facing the first straight conductor 310, and the inner diameter of the arc of the third connector 520 is the same as the diameter of the first straight conductor 310, thereby reducing the distortion of the electric field and minimizing the distance between the first conductor 110 and the third conductor 130.

[0048] Reference Figures 3 to 6 In some embodiments, the length of the third straight conductor 510 is less than the length of the second straight conductor 410. The second connector 420 is connected to the second straight conductor 410 and is arranged inclined forward from bottom to top. The first connector 320 is connected to the first straight conductor 310 and is arranged inclined backward from top to bottom. Since the length of the third straight conductor 510 is also less than the length of the first straight conductor 310, sufficient space can be provided for the first connector 320 and the second connector 420, so that the first connector 320 and the second connector 420 will not interfere with the third straight conductor 510 and the third connector 520. This is beneficial to the reasonable layout of the first commutation component 300, the second commutation component 400, and the third commutation component 500.

[0049] Reference Figures 3 to 8 In some embodiments, the lowermost first insert has a first commutation conductor 211 arranged inclined forward from bottom to top, and a first contact 210 is installed at the front end of the first commutation conductor 211. This shortens the distance between the first contact 210 and the first conductor 110 in the front-back direction, reduces the rearward tilt angle of the first connector 320, and facilitates the connection between the first conductor 110 and the first contact 210. The foremost first insert has a third commutation conductor 231 arranged inclined backward from bottom to top, and a third contact 230 is installed at the rear end of the third commutation conductor 231. This shortens the distance between the third contact 230 and the third conductor 130 in the front-back direction, reduces the curvature of the third connector 520, and facilitates the connection between the third conductor 130 and the third contact 230.

[0050] It is understood that both the first commutation conductor 211 and the third commutation conductor 231 can be installed to their respective first inserts by means of screw connection. The first contact 210 can be installed to the first commutation conductor 211 by means of screw connection, the third contact 230 can be installed to the third commutation conductor 231 by means of screw connection, and the second contact 220 can be installed to its respective first insert by means of screw connection. Of course, in addition to the above-mentioned screw connection method, all of them can be replaced by snap-fit ​​or other connection methods, and this utility model does not specifically limit them.

[0051] Refer to 3 to Figure 8 In some embodiments, by tilting the first commutation conductor 211 and the third commutation conductor 231, the first contact 210 is located directly below the third contact 230, thereby making the first connector 330 located directly below the second connector 430. This facilitates a reasonable layout between the first commutation component 300 and the third commutation component 500, and avoids interference between them due to their cross arrangement.

[0052] Reference Figures 3 to 8 In some embodiments, the first connector 330, the second connector 430, and the third connector 530 are arranged in a straight line along the left and right direction, and in the up and down direction, the horizontal height of the first connector 330, the second connector 430, and the third connector 530 increases sequentially, thereby further facilitating the reasonable layout between the first commutation component 300, the second commutation component 400, and the third commutation component 500.

[0053] Reference Figures 3 to 6 as well as Figure 9In some embodiments, a second basin-type insulator 600 is sealed and installed at the bottom of the housing 100. Three second inserts are installed on the second basin-type insulator 600. The first conductor 110, the second conductor 120, and the third conductor 130 are correspondingly installed on the three second inserts. This facilitates the installation of the first conductor 110, the second conductor 120, and the third conductor 130, and allows the first conductor 110, the second conductor 120, and the third conductor 130 to connect with the external electrical structure through the corresponding second inserts.

[0054] Reference Figures 3 to 6 as well as Figure 9 In some embodiments, the first conductor 110, the second conductor 120, and the third conductor 130 each have a vertical portion 140 arranged in a vertical direction. The three vertical portions 140 are arranged sequentially from front to back at intervals. Each vertical portion 140 has a commutation connection portion 141 arranged facing to the right. The three commutation connection portions 141 are located at the same horizontal height. The first straight conductor 310, the second straight conductor 410, and the third straight conductor 510 are installed in a one-to-one correspondence with the three commutation connection portions 141. In the above structure, the commutation connection portions 141 are arranged facing to the right, that is, towards the first basin-type insulator 200. This allows the first commutation assembly 300, the second commutation assembly 400, and the third commutation assembly 500 to be installed to their respective commutation connection portions 141, so that they can face the first basin-type insulator 200 and extend to the corresponding contact seats for mutual insertion when they are inserted into each other.

[0055] It is understood that the first straight conductor 310, the second straight conductor 410, the third straight conductor 510 and the corresponding commutation connection part 141 can be connected by screws. Of course, in addition, snap-fit ​​or other connection structures can also be used for fixed installation. This utility model does not make specific limitations on this.

[0056] Reference Figures 3 to 6 as well as Figure 9In some embodiments, the three second inserts are arranged in an equilateral triangle, with two second inserts spaced apart in the front-to-back direction and located to the right of the other second insert. The first conductor 110, second conductor 120, and third conductor 130 each have a mounting portion 150 connected to the lower end of the vertical portion 140. The mounting portion 150 of the first conductor 110 is arranged inclined to the right from top to bottom and extends rearward to the second insert at the foremost end. The mounting portion 150 of the second conductor 120 is arranged inclined to the right from top to bottom and extends forward to the second insert at the rearmost end. The mounting portion 150 of the third conductor 130 is arranged inclined to the left from top to bottom and is mounted to the second insert at the leftmost end. This allows the first conductor 110, second conductor 120, and third conductor 130 to be mounted on the three second inserts arranged in an equilateral triangle via their respective mounting portions 150, and also allows the vertical portions 140 of the first conductor 110, second conductor 120, and third conductor 130 to be arranged sequentially at intervals in the front-to-back direction.

[0057] It is understood that the vertical portion 140, the phase-changing connection portion 141, and the mounting portion 150 in the first conductor 110, the second conductor 120, and the third conductor 130 are integrally formed structures.

[0058] It is understandable that the three mounting parts 150 and the corresponding second inserts can be installed and fixed by screw connection or other connection structure.

[0059] Reference Figure 1 and Figure 2 This utility model also proposes a busbar structure, which is equipped with a three-phase conductor commutation structure as described in any of the above embodiments. The first conductor 110 and the third conductor 130 can be commutated via a first commutation component 300 and a third commutation component 500. During the commutation operation, the three-phase conductors can be connected to the three-phase conductors of the docking device 700 in a plug-in manner through the corresponding commutation components to achieve commutation. In other words, the busbar can be connected and commutated by plugging the three-phase conductors into the contact base, resulting in a simple structure and convenient operation. The busbar's ability to be connected and commutated by plugging the three-phase conductors into the contact base makes commutation of the busbar more convenient.

[0060] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A three-phase conductor commutation structure, characterized in that, include: The housing (100) has a sealed mounting cavity (101) in which a first conductor (110), a third conductor (130) and a second conductor (120) are arranged side by side from front to back; A first basin-type insulator (200) is sealed and installed on the right side of the housing (100). Three first inserts are installed on the first basin-type insulator (200) in an equilateral triangle arrangement. Two of the first inserts are arranged at intervals from front to back and are located above the other first insert. Among the three first inserts, a first contact (210), a second contact (220) and a third contact (230) are installed in a clockwise direction starting from the bottom first insert. The first commutation assembly (300) includes a first straight conductor (310), a first connector (320), and a first connector (330). The first straight conductor (310) is fixedly installed on the first conductor (110). The first connector (320) is installed on the first straight conductor (310) and extends downward. The first connector (330) is installed at the lower end of the first connector (320) and inserted into the first contact seat (210). The second commutation assembly (400) includes a second straight conductor (410), a second connector (420), and a second connector (430). The second straight conductor (410) is fixedly installed on the second conductor (120). The second connector (420) is installed on the second straight conductor (410) and extends upward. The second connector (430) is installed on the upper end of the second conductor (120) and plugged into the second contact seat (220). The third commutation assembly (500) includes a third straight conductor (510), a third connector (520), and a third joint (530). The third straight conductor (510) is fixedly installed on the third conductor (130), and the length of the third straight conductor (510) is less than the length of the first straight conductor (310). The third connector (520) is installed on the third straight conductor (510) and extends upward in an arc shape with an opening facing the first connector (320). The third joint (530) is installed on the upper end of the third connector (520) and inserted into the third contact seat (230).

2. The three-phase conductor commutation structure according to claim 1, characterized in that, The third connector (520) is an arc shape with an opening facing the first straight conductor (310), and the inner diameter of the arc of the third connector (520) is the same as the diameter of the first straight conductor (310).

3. The three-phase conductor commutation structure according to claim 1, characterized in that, The length of the third straight conductor (510) is less than the length of the second straight conductor (410). The second connector (420) is connected to the second straight conductor (410) and is arranged inclined forward from bottom to top. The first connector (320) is connected to the first straight conductor (310) and is arranged inclined backward from top to bottom.

4. The three-phase conductor commutation structure according to claim 3, characterized in that, The first insert at the bottom is provided with a first commutation conductor (211) arranged from bottom to top and forward, and the first contact seat (210) is installed at the front end of the first commutation conductor (211); The first insert at the foremost position has a third commutation conductor (231) arranged from bottom to top and then tilted backward, and the third contact (230) is installed at the rear end of the third commutation conductor (231).

5. The three-phase conductor commutation structure according to claim 4, characterized in that, The first contact (210) is located directly below the third contact (230), and the first connector (330) is located directly below the second connector (430).

6. The three-phase conductor commutation structure according to claim 5, characterized in that, The first connector (330), the second connector (430), and the third connector (530) are all arranged in a straight line along the left and right direction, and in the up and down direction, the horizontal height of the first connector (330), the second connector (430), and the third connector (530) increases sequentially.

7. The three-phase conductor commutation structure according to claim 1, characterized in that, The bottom of the housing (100) is sealed with a second basin-type insulator (600), and three second inserts are installed on the second basin-type insulator (600). The first conductor (110), the second conductor (120), and the third conductor (130) are respectively installed on the three second inserts.

8. The three-phase conductor commutation structure according to claim 7, characterized in that, The first conductor (110), the second conductor (120), and the third conductor (130) each have a vertical portion (140) arranged in the vertical direction. The three vertical portions (140) are arranged sequentially from front to back at intervals. Each vertical portion (140) has a commutation connection portion (141) arranged facing the right. The three commutation connection portions (141) are located at the same horizontal height. The first straight conductor (310), the second straight conductor (410), and the third straight conductor (510) are installed on the three commutation connection portions (141) in a one-to-one correspondence.

9. The three-phase conductor commutation structure according to claim 8, characterized in that, The three second inserts are arranged in an equilateral triangle, wherein two of the second inserts are spaced apart along the front-back direction and located to the right of the other second insert; The first conductor (110), the second conductor (120), and the third conductor (130) each have a mounting portion (150) connected to the lower end of the vertical portion (140), wherein, The mounting portion (150) of the first conductor (110) is arranged obliquely to the right from top to bottom and extends rearward to the second insert mounted at the foremost end; The mounting portion (150) of the second conductor (120) is arranged obliquely to the right from top to bottom and extends forward to the second insert mounted at the rear end; The mounting portion (150) of the third conductor (130) is arranged at an angle from top to bottom to the left and is mounted on the second insert at the leftmost end.

10. A busbar structure, characterized in that, The device is provided with a three-phase conductor commutation structure as described in any one of claims 1 to 9.

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