Mechanical limiting device and vehicle-mounted mobile substation

Abstract

The utility model belongs to the technical field of vehicle-mounted mobile substations, and discloses a mechanical limiting device and a vehicle-mounted mobile substation, the mechanical limiting device comprises a first wiring terminal, the first wiring terminal comprises a first plate and a second plate which are connected with each other, and the second plate is connected with a limiting terminal; a sliding groove is formed in the limiting terminal; a sliding way plate is installed in the sliding groove in a sliding mode, and a sliding way matched with the sliding groove is arranged on the sliding way plate. A slideway connecting plate is arranged at one end, far away from the connected limiting terminal, of the slideway plate; the slideway connecting plate is connected with an insulator, the other end of the insulator is connected with an adapter plate, and the other end of the adapter plate is connected with a second wiring terminal. According to the utility model, the slideway plate and the limiting terminal are arranged on the mechanical limiting device, so that the distance between telescopic equipment such as a voltage transformer and a lightning arrester in the vehicle-mounted mobile transformer can be effectively ensured, and potential safety hazards are completely eradicated.

Description

Technical Field

[0001] This utility model belongs to the technical field of vehicle-mounted mobile substations, specifically relating to a mechanical limiting device and a vehicle-mounted mobile substation. Background Technology

[0002] Mobile substations (hereinafter referred to as mobile substations) are widely used in scenarios such as emergency repair, natural disaster relief, capacity backup, and emergency power transfer due to their compact structure and flexible use. As the voltage level of mobile substations continues to increase, the operating environment becomes increasingly harsh, and users are paying more and more attention to their safety. With the increasing voltage level of mobile substations and the more demanding the operating environment, the width of the vehicle platform cannot meet the insulation distance requirements of related electrical equipment. Current technical solutions employ telescopic or rotating methods to increase the phase-to-phase clearance of related equipment. That is, during transportation, the electrical equipment is retracted within the width of the vehicle platform; during use, it is extended or rotated to the specified position according to electrical insulation requirements. Figure 1 As shown, taking voltage transformers and surge arresters as examples, during transportation, the voltage transformers or surge arresters are integrated onto the vehicle panel to ensure transportation safety. During use, a sliding track is needed to extend the voltage transformer or surge arrester outwards from the vehicle panel to ensure insulation distance. In common technical solutions, the length of the sliding track alone limits the movement distance, resulting in low reliability and failing to completely eliminate the safety hazards related to phase-to-phase insulation.

[0003] Chinese patent application CN107086467A, entitled "Vehicle-mounted Combined Electrical Equipment and Vehicle-mounted Mobile Substation," includes: a circuit breaker, a first three-position operating switch, a second three-position operating switch, a current transformer, a voltage transformer, a three-phase linkage device, and a surge arrester. The circuit breaker is mounted on an equipment base frame. Both the first and second three-position operating switches are mounted on the circuit breaker. The first and second current transformers are respectively positioned above the first and second three-position operating switches. The voltage transformer is mounted on the equipment base frame and installed at the other end of the circuit breaker; the voltage transformer is an integrated unit of independent single-phase voltage transformers carrying disconnect switches. The three-phase linkage device is installed above the voltage transformer. The surge arrester is mounted on the voltage transformer via a surge arrester bracket. This patent application's vehicle-mounted mobile substation fails to address the insulation safety hazard caused by the limitation of the slide rail length. Utility Model Content

[0004] In order to overcome the problems existing in the prior art, the purpose of this utility model is to provide a mechanical limiting device and a vehicle-mounted mobile substation. Through the slide plate and limiting terminal set on the mechanical limiting device, the phase spacing of the voltage transformer and surge arrester and other telescopic equipment in the vehicle-mounted mobile substation can be effectively guaranteed, eliminating safety hazards.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] In a first aspect, this utility model provides a mechanical limiting device, comprising: a first terminal block, the first terminal block comprising a first plate and a second plate connected to each other, the second plate being connected to a limiting terminal block; a groove is provided on the limiting terminal block; a slide plate is slidably installed in the groove, the slide plate having a slide track matching the groove; a slide track connecting plate is provided at one end of the slide plate away from the connected limiting terminal block; an insulator is connected to the slide track connecting plate, the other end of the insulator is connected to a transition plate, and the other end of the transition plate is connected to a second terminal block.

[0007] Optionally, the adapter plate includes an intermediate adapter plate, and the two ends of the intermediate adapter plate are respectively connected to a first adapter plate and a second adapter plate disposed opposite to each other.

[0008] Optionally, the second terminal block includes a second terminal block intermediate plate, and the two ends of the second terminal block intermediate plate are respectively connected to a second terminal block first plate and a second terminal block second plate that are disposed opposite to each other.

[0009] Optionally, the first terminal block includes a first plate and a second plate that are perpendicularly connected to each other.

[0010] Optionally, the limiting terminal is provided with two parallel sliding grooves.

[0011] Optionally, the limiting terminal is a plate with a length shorter than that of the slide plate.

[0012] Optionally, the first end of the slide extends to the first end of the limiting terminal to form an open end, and the second end of the slide extends to the second end of the limiting terminal and terminates inside the limiting terminal to form a closed end.

[0013] Optionally, the slide has an I-shaped cross-section.

[0014] Optionally, the slide is made of insulating material.

[0015] Secondly, this utility model provides a vehicle-mounted mobile substation, including an A-phase device, a B-phase device, and a C-phase device, as well as the aforementioned mechanical limiting device. The top of the A-phase device and the C-phase device are both provided with the first wiring terminal, and the second wiring terminal is provided on the top of the B-phase device.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This utility model's mechanical limiting device has a simple structure and reliable function. Through the slide plate and limiting terminals set on the mechanical limiting device, it can effectively ensure the phase spacing of telescopic equipment such as voltage transformers and surge arresters in vehicle-mounted mobile transformers, eliminating potential safety hazards. This utility model can effectively ensure the phase distance during equipment telescopic or rotating operations, improving electrical safety performance, and is suitable for five-proof mechanical limiting of various telescopic equipment in vehicle-mounted mobile transformers. Attached Figure Description

[0018] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the present invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely schematic to aid in understanding the present invention and do not specifically limit the shapes and proportions of the components. In the drawings:

[0019] Figure 1 These are schematic diagrams illustrating different forms of the vehicle-mounted mobile device of this utility model; where (a) is the transportation form and (b) is the usage form.

[0020] Figure 2 This is a schematic diagram of the mechanical limiting device of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the first terminal block of this utility model;

[0022] Figure 4 This is a schematic diagram of the limiting terminal structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the slide plate of this utility model;

[0024] Figure 6 This is a schematic diagram of the installation of the slide plate of this utility model;

[0025] Figure 7 This is a schematic cross-sectional view of the slide plate of this utility model;

[0026] Figure 8 This is a schematic diagram of the structure of the second terminal block of this utility model;

[0027] Figure 9 This is a schematic diagram of the adapter plate structure of this utility model;

[0028] Figure 10 This is a schematic diagram showing the installation of the adapter plate and the second wiring terminal of this utility model;

[0029] Figure 11 This is a schematic diagram of the installation of the adapter plate and insulator of this utility model;

[0030] Figure 12These are schematic diagrams of different forms of the mechanical limiting device of this utility model; where (a) is the transportation form and (b) is the usage form.

[0031] Among them, 1. Voltage transformer; 2. Surge arrester; 3. Slide rail; 4. Terminal block; 41. First plate; 42. Second plate; 5. Insulator; 6. Slide rail plate; 61. Slide rail plate; 62. Slide rail connecting plate; 7. Limit terminal; 71. Slide groove; 8. Adapter plate; 81. First plate of adapter plate; 82. Middle plate of adapter plate; 83. Second plate of adapter plate; 9. Second terminal block; 91. First plate of second terminal block; 92. Middle plate of second terminal block; 93. Second plate of second terminal block. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0034] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, 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, and therefore should not be construed as a limitation of this utility model.

[0035] When an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments. The use of the term "horizontal" does not imply that the component is required to be absolutely horizontal, but rather that it may be slightly tilted. "Horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it may be slightly tilted.

[0036] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of this utility model, it should be understood that the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or collections thereof.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0038] The present invention will now be described in detail with reference to the accompanying drawings.

[0039] like Figure 1 As shown, a mechanical limiting device of this utility model includes: a first terminal 4, the first terminal 4 including a first plate 41 and a second plate 42 connected to each other, the second plate 42 being connected to a limiting terminal 7; a sliding groove 71 is provided on the limiting terminal 7; a sliding track plate 61 is slidably installed in the sliding groove 71, the sliding track plate 61 having a track 6 that matches the sliding groove 71; a sliding track connecting plate 62 is provided at one end of the sliding track plate 61 away from the connected limiting terminal 7; an insulator 5 is connected to the sliding track connecting plate 62, the other end of the insulator 5 is connected to a transition plate 8, and the other end of the transition plate 8 is connected to a second terminal 9.

[0040] This utility model has a simple structure and reliable function. Through the slide plate 6 and limit terminal 7 set on the mechanical limit device, it can effectively ensure the phase spacing of telescopic equipment such as voltage transformers and surge arresters in vehicle-mounted mobile transformers, eliminating potential safety hazards. This utility model can effectively ensure the phase distance during equipment telescopic or rotating operations, improving electrical safety performance. It is suitable for five-proof mechanical limiting of various telescopic equipment in vehicle-mounted mobile transformers.

[0041] Example 1

[0042] A mechanical limiting device for a vehicle-mounted mobile substation includes a first terminal block 4, which includes a first plate 41 and a second plate 42 that are perpendicularly connected to each other.

[0043] Specifically, the first plate 41 has two through holes, and the second plate 42 has four through holes, and the four through holes are arranged according to the corner positions of a rectangle.

[0044] Specifically, the first terminal block 4 is installed on the A-phase equipment. The first plate 41 of the first terminal block 4 is connected to the A-phase equipment. The second plate 42 of the first terminal block 4 is connected to the limit terminal 7.

[0045] One end of the limiting terminal 7 is provided with a through hole, and the limiting terminal 7 is connected to the first wiring terminal 4 through the through hole.

[0046] The limiting terminal 7 has two sliding grooves 71.

[0047] Specifically, the limiting terminal 7 is a plate. The two sliding grooves 71 of the limiting terminal 7 are parallel. The two sliding grooves 71 of the limiting terminal 7 are respectively formed on both sides of the through hole of the limiting terminal 7.

[0048] Specifically, the through hole of the limiting terminal 7 is matched with the position of the through hole on the second plate 42.

[0049] Optionally, the limiting terminal 7 has four through holes.

[0050] Specifically, the slide groove 71 is a strip-shaped groove. Further, the slide groove 71 extends along the long axis of the limiting terminal 7.

[0051] Optionally, the first end of the slide groove 71 extends to the first end of the limiting terminal 7 to form an open end, and the second end of the slide groove 71 extends to the second end of the limiting terminal 7 and terminates inside the limiting terminal 7 to form a closed end.

[0052] The limiting terminal 7 is connected to the slide plate 61 via the slide groove 71.

[0053] The slide plate 61 is provided with a slide 6 that matches the slide groove 71 of the limit terminal 7.

[0054] Specifically, the slide rails 6 on the slide plate 61 are two parallel tracks.

[0055] Preferably, the slide 6 is I-shaped.

[0056] Optionally, the slide 6 is made of an insulating material. Specifically, the slide is made of resin.

[0057] The end of the slide plate 61 is connected to the slide connecting plate 62.

[0058] Specifically, the slide rail connecting plate 62 is integrally formed and connected with the slide rail plate 61.

[0059] Optionally, the slide plate 61 and the slide connecting plate 62 are perpendicular to each other.

[0060] The slide plate 61 is connected to the insulator 5 via the slide connecting plate 62.

[0061] The insulator 5 is connected to a second terminal 9 via an adapter plate 8. The other end of the second terminal 9 is connected to another insulator 5 via the adapter plate 8. The insulator 5 is connected to a slide plate 61 via a slide plate 62. The slide plate 61 is inserted into and connected to a limit terminal 7. The limit terminal 7 is connected to a first terminal 4 installed on the top of the C-phase equipment.

[0062] Specifically, the second terminal 9 is installed on the top of the B-phase equipment.

[0063] The second terminal 9 is fixed, and the insulators 5 are fixed on both sides through the adapter plate 8 to increase the creepage distance.

[0064] Specifically, the adapter plate 8 includes an intermediate adapter plate 82, with a first adapter plate 81 and a second adapter plate 83 respectively connected to its two ends. Optionally, both the first adapter plate 81 and the second adapter plate 83 are perpendicular to the intermediate adapter plate 82. Both the first adapter plate 81 and the second adapter plate 83 have through holes. Further, both the first adapter plate 81 and the second adapter plate 83 have four through holes.

[0065] Specifically, the second terminal 9 includes a second terminal intermediate plate 92, and the two ends of the second terminal intermediate plate 92 are respectively connected to a second terminal first plate 91 and a second terminal second plate 93 arranged opposite to each other.

[0066] Optionally, the first plate 91 of the second terminal and the second plate 93 of the second terminal are both perpendicular to the middle plate 92 of the second terminal.

[0067] Through holes are provided on the first plate 91, the intermediate plate 92, and the second plate 93 of the second terminal block. Furthermore, four through holes are provided on each of the first plate 91, the intermediate plate 92, and the second plate 93 of the second terminal block.

[0068] The first plate 81 or the second plate 83 of the two adapter plates 8 are respectively installed on both sides of the middle plate 92 of the second terminal block.

[0069] Example 2

[0070] This embodiment of a vehicle-mounted mobile substation includes an A-phase device, a B-phase device, and a C-phase device, as well as the aforementioned mechanical limiting device. The top of the A-phase device and the C-phase device are each provided with the first terminal 4, and the second terminal 9 is provided on the top of the B-phase device.

[0071] The aforementioned mechanical limit device for a vehicle-mounted mobile substation, when in use:

[0072] Keep the second terminal block 9, adapter plate 8, insulator 5 and slide plate 61 fixed.

[0073] The wiring terminal 4 and the limit terminal 7 slide along the slide plate 61 with the A-phase equipment and the C-phase equipment body until the wiring hole on the limit terminal 7 is fully exposed, so that the electrical insulation distance between each phase of the equipment can be reached and wiring operation can be performed.

[0074] This utility model, by setting up a slide plate 61 and an insulator 5, limits the electrical insulation distance between each phase of the equipment, thus completely eliminating the safety hazards caused by insufficient insulation distance between phases from a design perspective. Moreover, the device as a whole is a mechanical structure, which is reliable in function, easy to manufacture, and can be quickly applied to actual engineering projects.

[0075] Unless otherwise specified, the equipment components involved in the above embodiments are all conventional equipment components, and the structural settings, working methods or control methods involved are all conventional settings, working methods or control methods in the art unless otherwise specified.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A mechanical stop device, characterized in that include: The first terminal (4) includes a first plate (41) and a second plate (42) connected to each other. The second plate (42) is connected to a limit terminal (7). A groove (71) is provided on the limit terminal (7). A slide plate (61) is slidably installed in the groove (71). The slide plate (61) has a slide track (6) that matches the groove (71). A slide track connecting plate (62) is provided at one end of the slide plate (61) away from the limit terminal (7). An insulator (5) is connected to the slide track connecting plate (62). An adapter plate (8) is connected to the other end of the insulator (5). A second terminal (9) is connected to the other end of the adapter plate (8).

2. A mechanical stop device according to claim 1, wherein The adapter plate (8) includes an intermediate plate (82), and the two ends of the intermediate plate (82) are respectively connected to a first plate (81) and a second plate (83) of the adapter plate arranged opposite to each other.

3. A mechanical stop device according to claim 1, wherein The second terminal (9) includes a second terminal intermediate plate (92), and the two ends of the second terminal intermediate plate (92) are respectively connected to the oppositely arranged second terminal first plate (91) and second terminal second plate (93).

4. A mechanical stop device according to claim 1, wherein The first terminal block (4) includes a first plate (41) and a second plate (42) that are perpendicularly connected to each other.

5. A mechanical stop device according to claim 1, wherein The limiting terminal (7) has two parallel grooves (71).

6. A mechanical stop device according to claim 1, wherein The limiting terminal (7) is a plate with a length less than that of the slide plate (61).

7. A mechanical stop as defined in claim 1, wherein The first end of the slide (71) extends to the first end of the limiting terminal (7) to form an open end, and the second end of the slide (71) extends to the second end of the limiting terminal (7) and terminates inside the limiting terminal (7) to form a closed end.

8. A mechanical stop as defined in claim 1, wherein The slide (6) has an I-shaped cross-section.

9. A mechanical stop as defined in claim 1, wherein The slide (6) is made of insulating material.

10. A mobile substation for vehicles, characterized in that The device includes an A-phase device, a B-phase device, and a C-phase device, as well as a mechanical limiting device according to any one of claims 1 to 9. The top of the A-phase device and the C-phase device are provided with the first terminal (4), and the second terminal (9) is provided on the top of the B-phase device.

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