Inflatable switch cabinet with novel arrangement structure

Abstract

The utility model relates to an inflatable switch cabinet with a novel arrangement structure, which comprises a box body, the box body comprises an air box unit, the air box unit comprises a top plate, a bottom plate, a left side plate, a right side plate, a front plate and a rear plate, and the top plate, the bottom plate, the left side plate, the right side plate, the front plate and the rear plate enclose to form the air box unit with a box body structure; a plurality of through holes are formed in a top plate of the gas tank unit, sleeves are arranged in the through holes in a penetrating manner, and one end of each sleeve penetrates through the corresponding through hole and extends upwards to form a sleeve top; the sleeve is of a hollow structure, a bus of the switch cabinet can penetrate through the sleeve, and one end of the bus is clamped in the top of the sleeve. According to the utility model, wiring is carried out from the upper side of the cabinet body when external bus connection is carried out, wiring is not needed from the side surface of the cabinet body when the cabinet body needs to be expanded, and expansion of a plurality of cabinet bodies is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of switch cabinets, in particular to an inflatable switch cabinet with a novel arrangement structure. Background Art

[0002] The switchgear is an electrical equipment, whose main function is to open, close, control and protect the electrical equipment in the process of power generation, transmission, distribution and power conversion in the power system. The inflatable switchgear is a new generation of switchgear. The inflatable switchgear is insulated with sulfur hexafluoride or dry air. The inflatable switchgear has the characteristics of compact structure, flexible operation and reliable interlocking. The inflatable switchgear is suitable for small secondary substations, switchgear stations, box-type substations, residential areas, industrial and mining enterprises, large shopping malls, airports, subways, railways and other occasions with high electricity requirements in the power system. For some occasions, it may be necessary to connect multiple inflatable switchgear cabinets from the side to expand the cabinet. However, the busbar of the conventional inflatable switchgear is connected on the side, which requires the busbar to be disassembled before the expansion connection can be made. After the switchgear is installed, it is not easy to make an expansion connection, which is inconvenient to use. In addition, how to ensure the airtightness of the gas box after the expansion connection is made is also a technical problem. Utility Model Content

[0003] The utility model aims to provide an inflatable switch cabinet with a novel arrangement structure, which comprises: a box body, the box body comprises an air box unit, the air box unit comprises a top plate, a bottom plate, a left plate, a right plate, a front plate and a rear plate, the top plate, the bottom plate, the left plate, the right plate, the front plate and the rear plate are surrounded to form an air box unit with a box structure; a plurality of through holes are opened on the top plate of the air box unit, sleeves are passed through the through holes, one end of the sleeve extends upward through the through holes to form a sleeve top; the sleeve is a center-through structure, the busbar of the switch cabinet can pass through the sleeve and one end of the busbar is clamped in the top of the sleeve.

[0004] Furthermore, the top of the sleeve is conical and gradually increases from the top to the bottom.

[0005] Furthermore, the top of the sleeve includes an upper section and a lower section, and the radial dimension of the lower end of the upper section is smaller than the upper end of the lower section, so that the connection between the upper section and the lower section is stepped.

[0006] Furthermore, the sleeve includes a neck, the radial dimension of the neck is larger than the through hole, and the neck is against the lower end surface of the top plate.

[0007] Furthermore, the sleeve is made of elastic material.

[0008] Furthermore, it also includes a reinforcing plate, which is connected to the corresponding through hole position on the top plate, and the reinforcing plate is provided with a second through hole that is the same as the through hole on the top plate.

[0009] Furthermore, one end of the sleeve passes through the second through hole and extends upward.

[0010] Furthermore, an isolation plate is provided above the bushing, and a busbar chamber is formed between the isolation plate and the top plate.

[0011] Furthermore, the switch cabinet comprises a plurality of boxes, and the left side plate and the right side plate between two adjacent boxes are pressed against each other; the busbar of the switch cabinet extends upward and one end of the busbar is clamped in the top of the bushing.

[0012] Furthermore, a pressure relief chamber is provided below the air box unit.

[0013] Compared with the prior art, the inflatable switch cabinet with a new arrangement structure of the utility model has the following advantages:

[0014] 1. The inflatable switch cabinet of the utility model is provided with a plurality of through holes on the top plate of the gas box unit, a sleeve is passed through the through hole, one end of the sleeve extends upward through the through hole to form a sleeve top, and one end of the busbar is clamped in the sleeve top. Therefore, when the external busbar is connected, the wiring is routed from the upper side of the cabinet. When the cabinet is to be expanded, it is not necessary to route the wiring from the side of the cabinet, which is convenient for the expansion of multiple cabinets.

[0015] 2. The sleeve included in the utility model is made of elastic material and includes a neck. The radial size of the neck is larger than the through hole, so that the neck is against the lower end surface of the top plate during assembly, thereby maintaining good air tightness of the air box unit after the sleeve is assembled to the top plate.

[0016] 3. The top of the sleeve included in the utility model is conical, gradually increasing from the top to the bottom, and the radial size of the lower end of the upper section is smaller than the upper end of the lower section, so that the connection between the upper section and the lower section is stepped, so that when connecting with the external busbar, the connector of the external busbar can be directly clamped on the top of the sleeve, and the end of the connector of the external busbar is against the step, which makes the connection more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the inflatable switch cabinet with a new arrangement structure of the utility model (seen from the oblique rear);

[0018] Figure 2 It is a schematic diagram of the local structure of the top position of the utility model;

[0019] Figure 3 It is a schematic diagram of the local structure at another angle of the top position of the utility model. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0021] See attached Figures 1 to 3 The inflatable switch cabinet with a novel arrangement structure of the utility model comprises: a box body 10, the box body comprises an air box unit 1, a pressure relief chamber 2 is arranged below the air box unit 1, a cable chamber 3 is arranged at the front end of the pressure relief chamber 2, a mechanism chamber 4 is arranged at the front end of the air box unit 1, and a low-voltage box 5 is arranged above the mechanism chamber 4. In this embodiment, the direction of the mechanism chamber 4 is defined as the front, and the direction of the air box unit 1 is defined as the rear.

[0022] The gas box unit 1 comprises a top plate 11, a bottom plate 12, a left side plate 13, a right side plate 14, a front plate and a rear plate 15, wherein the top plate 11, the bottom plate 12, the left side plate 13, the right side plate 14, the front plate (not shown in the figure) and the rear plate 15 are arranged to form a box-shaped gas box unit 1. A plurality of through holes 110 are provided on the top plate 11 of the gas box unit 1, and a bushing 17 is inserted into the through hole 110, and one end of the bushing 17 extends upward through the through hole 110 to form a bushing top 171; the bushing 17 is a middle-through structure, and the busbar of the switch cabinet can pass through the bushing 17, and one end of the busbar is clamped in the bushing top 171. An isolation plate 19 is provided above the bushing 17, and a busbar chamber 6 is formed between the isolation plate 19 and the top plate 11.

[0023] In this embodiment, the sleeve top 171 is conical, gradually increasing from the top to the bottom. The sleeve top 171 includes an upper section 172 and a lower section 173. The radial dimension of the lower end of the upper section 172 is smaller than the upper end of the lower section 173, so that the connection between the upper section and the lower section is in a step shape 174. With this conical structure with a small top and a large bottom, it can be connected with an external busbar joint. The external busbar joint can be easily inserted into the sleeve top 171, and the external busbar joint rests on the step 174 formed by the upper section 172 and the lower section 173.

[0024] The sleeve 17 includes a neck 175, the radial dimension of which is larger than the through hole 110, and the neck 175 abuts against the lower end surface of the top plate 11. In this embodiment, the sleeve 17 is made of elastic material.

[0025] In this embodiment, a reinforcing plate 18 is further included, and the reinforcing plate 18 is connected to the corresponding through hole position on the top plate 11, and a second through hole identical to the through hole 110 on the top plate is provided on the reinforcing plate 18. One end of the sleeve 17 passes through the second through hole and extends upward.

[0026] According to actual needs, the switch cabinet may include several boxes 10, and the left side plate 13 and the right side plate 14 between two adjacent boxes 10 are pressed together; the busbar of the switch cabinet extends upward and one end of the busbar is clamped in the top 171 of the bushing.

[0027] In actual operation, one end of the busbar of the cabinet is clamped in the top 171 of the bushing, the neck 175 of the bushing is against the lower end of the top plate 11, and the top 171 of the bushing extends upward from the through hole 110. The reinforcing plate 18 has a second through hole identical to the through hole 110, and the reinforcing plate 18 is connected to the top plate 11 by bolt connection, welding or other methods. A fixing hole 181 is provided at the same position on the reinforcing plate 18 and the top plate 11, and a bolt is passed through the fixing hole 181 and locked to the neck 175 of the bushing, so that the reinforcing plate 18, the top plate 11 and the bushing 17 can be connected together. The bushing 17 is made of elastic material, so an interference fit can be used to clamp the bushing 17 in the through hole 110. A gasket (not shown in the figure) is provided between the bushing 17 and the top plate 11, and the gasket can make the airtightness of the air box better to prevent air leakage. When the gas box unit 1 is filled with gas, the reinforcing plate 18 can prevent the top plate around the through hole 110 from bulging due to its weak strength. When the installed switch cabinet needs to be expanded, it is only necessary to directly arrange multiple cabinet units side by side, open the isolation plate 19 to expose the bushing 17, and directly connect the external busbar connector to the bushing to complete the installation work. The operation is simple and convenient.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" 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] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. 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 utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] 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 representation of the above terms should not be understood as necessarily being directed 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.

[0033] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An inflatable switch cabinet with a new arrangement structure, characterized in that: include: A box body, the box body includes an air box unit, the air box unit includes a top plate, a bottom plate, a left plate, a right plate, a front plate and a rear plate, the top plate, the bottom plate, the left plate, the right plate, the front plate and the rear plate are surrounded to form an air box unit with a box structure; a plurality of through holes are opened on the top plate of the air box unit, sleeves are passed through the through holes, one end of the sleeve extends upward through the through holes to form a sleeve top; the sleeve is a center-through structure, the busbar of the switch cabinet can pass through the sleeve and one end of the busbar is clamped in the top of the sleeve.

2. The inflatable switch cabinet with a novel arrangement structure according to claim 1 is characterized in that: The top of the sleeve is conical and gradually increases from the top to the bottom.

3. The inflatable switch cabinet with a novel arrangement structure according to claim 2 is characterized in that: The top of the sleeve comprises an upper section and a lower section, wherein the radial dimension of the lower end of the upper section is smaller than the upper end of the lower section, so that the connection between the upper section and the lower section is in a step shape.

4. The inflatable switch cabinet with a novel arrangement structure according to claim 1 is characterized in that: The sleeve comprises a neck, the radial dimension of which is larger than the through hole, and the neck abuts against the lower end surface of the top plate.

5. The inflatable switch cabinet with a novel arrangement structure according to claim 1 is characterized in that: The sleeve is made of elastic material.

6. The inflatable switch cabinet with a novel arrangement structure according to claim 1 is characterized in that: It also includes a reinforcing plate, which is connected to the corresponding through hole position on the top plate, and is provided with a second through hole that is the same as the through hole on the top plate.

7. The inflatable switch cabinet with a novel arrangement structure according to claim 6 is characterized in that: One end of the sleeve passes through the second through hole and extends upward.

8. The inflatable switch cabinet with a novel arrangement structure according to claim 1 is characterized in that: An isolation plate is arranged above the bushing, and a busbar chamber is formed between the isolation plate and the top plate.

9. The inflatable switch cabinet with a novel arrangement structure according to claim 1 is characterized in that: The switch cabinet comprises a plurality of boxes, and the left side plate and the right side plate between two adjacent boxes are pressed against each other; the busbar of the switch cabinet extends upward and one end of the busbar is clamped in the top of the bushing.

10. The inflatable switch cabinet with a novel arrangement structure according to claim 1, characterized in that: A pressure relief chamber is provided below the air box unit.

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