Separated low-voltage cabinet

Abstract

The utility model relates to a separated low-voltage cabinet, and relates to the field of low-voltage cabinet equipment. The separated low-voltage cabinet provided by the embodiment of the utility model comprises a cabinet body, a first mounting chamber, a second mounting chamber and an isolation plate, the first mounting chamber is used for mounting primary boosting equipment and is arranged in the cabinet body; the second mounting chamber is used for mounting secondary protection control equipment and is arranged in the cabinet body, and a plurality of partition plates are arranged between the first mounting chamber and the second mounting chamber; and the isolation plate is connected with the cabinet body and is arranged in the panel. The first mounting chamber and the second mounting chamber are provided with a plurality of partition plates for partition, the primary boosting device and the secondary protection control device are separated, high-temperature partition is improved, the secondary protection control device is protected from being damaged, and the stability of the device is improved. And the openable and closable panel and the isolation plate are arranged on the cabinet body, and the isolation plate isolates a primary electrified body of the primary boosting equipment, so that the risk of electric shock caused by mistaken touch during secondary maintenance is avoided, and the maintenance risk is reduced.

Description

Technical Field

[0001] The utility model relates to the field of low-voltage cabinet equipment, in particular to a partitioned low-voltage cabinet. Background Art

[0002] Box-type substations are often used in compact power distribution equipment indoors or outdoors. Box-type substations can also be divided into prefabricated substations and combined substations according to different configurations in the box.

[0003] At present, the box-type substation includes power transformers, high-voltage and low-voltage switchgear and control equipment, high-voltage and low-voltage internal connections, auxiliary equipment and circuits, etc. The compartments in the box are mainly divided into transformer room, high-voltage room and low-voltage room; among them, the low-voltage room contains primary boosting equipment and secondary protection and control power, such as travel lighting.

[0004] The inventors have found that the primary booster and the secondary protection and control equipment are in the same room, and there is no compartment between them. The voltage of the primary booster is about 0.8kV, and the voltage of the secondary protection and control equipment is about 0.4kV. Since the primary booster generates a lot of heat during operation, the heat will affect the secondary protection and control equipment, which will lead to inaccurate monitoring of the secondary protection and control equipment, and accelerate the aging of the secondary protection and control equipment, making the equipment unstable, and causing its protection and control functions to fail. Utility Model Content

[0005] The utility model aims to provide a partitioned low-voltage cabinet, which can separate a primary booster device from a secondary protection control device, improve the isolation against high temperature, and protect the secondary protection control device from damage to its components.

[0006] The embodiment of the utility model is achieved as follows:

[0007] The utility model proposes a partitioned low-voltage cabinet, comprising a cabinet body, a first installation chamber, a second installation chamber and an isolation plate; a panel that can be opened and closed is provided on the cabinet body; the first installation chamber is used for installing a primary boosting device and is arranged in the cabinet body; the second installation chamber is used for installing a secondary protection control device and is arranged in the cabinet body, and a plurality of partition plates are arranged between the first installation chamber and the second installation chamber; the isolation plate is connected to the cabinet body and is arranged in the panel, and the isolation plate is arranged corresponding to the first installation chamber.

[0008] Furthermore, the partitioned low-voltage cabinet also includes a mounting frame, a plurality of partition plates are mounted on the mounting frame to form the second mounting chamber, and the mounting frame is connected to the cabinet body.

[0009] Furthermore, the cabinet is provided with heat dissipation holes, and the heat dissipation holes are arranged corresponding to the first installation chamber;

[0010] An operation port is arranged on the panel.

[0011] Furthermore, the cabinet includes a first cabinet and a second cabinet connected to each other, and the first cabinet and the second cabinet are installed with side panels.

[0012] Furthermore, the first installation room is arranged inside the first cabinet and in the lower layer of the second cabinet;

[0013] The second installation room is arranged on the upper layer of the second cabinet, and a plurality of the partitions are connected to the second cabinet.

[0014] Further, the primary boost device includes a molded case circuit breaker and a frame circuit breaker, the frame circuit breaker is arranged on the upper layer of the first cabinet, and the molded case circuit breaker is arranged on the lower layer of the first cabinet and the lower layer of the second cabinet;

[0015] The secondary protection control device includes a micro-circuit breaker, which is installed in a plurality of the partitions.

[0016] Furthermore, the isolation plates are installed on both the first cabinet and the second cabinet, and the isolation plates are arranged corresponding to the molded case circuit breakers.

[0017] Furthermore, the cabinet further comprises a first connecting plate, which is connected to the second cabinet and is arranged at an open end of the second cabinet;

[0018] The first connecting plate is arranged parallel to the side plate arranged at the rear side.

[0019] Furthermore, the cabinet further comprises a second connecting plate, which is connected to the second cabinet and is arranged at the connection between the first cabinet and the second cabinet;

[0020] The second connecting plate is arranged parallel to the side plate arranged on the right side.

[0021] Furthermore, the cabinet further comprises a third connection plate for installing a molded case short circuit breaker, and the third connection plate is arranged in the first cabinet and the second cabinet;

[0022] One end of the third connecting plate is connected to the first cabinet, and the other end is connected to the second cabinet. The third connecting plate is arranged parallel to the side plate arranged at the rear side.

[0023] The beneficial effects of the embodiments of the utility model are:

[0024] The partitioned low-voltage cabinet is provided with multiple partitions in the first installation room and the second installation room to separate the primary booster equipment and the secondary protection control equipment, thereby improving the isolation of high temperature, protecting the secondary protection control equipment from damage to its components, and improving the stability of the equipment. In addition, an openable panel and a partition board are provided on the cabinet body, and the partition board isolates the primary live body of the primary booster equipment to avoid the risk of electric shock caused by accidental touch during secondary maintenance, thereby reducing the maintenance risk. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 This is a first structural schematic diagram of a partitioned low-voltage cabinet according to an embodiment of the utility model;

[0027] Figure 2 It is a top view of a partitioned low-voltage cabinet according to an embodiment of the utility model;

[0028] Figure 3 This is a second structural schematic diagram of a partitioned low-voltage cabinet according to an embodiment of the utility model;

[0029] Figure 4 This is a third structural schematic diagram of the partitioned low-voltage cabinet according to an embodiment of the utility model.

[0030] Icons: 100-partitioned low-voltage cabinet; 110-cabinet; 111-upper side panel; 1111-heat dissipation holes; 112-first cabinet; 113-second cabinet; 114-second connecting plate; 115-third connecting plate; 120-panel; 121-installation port; 130-first installation room; 140-second installation room; 141-partition plate; 142-installation frame; 150-isolation plate; 160-primary booster device; 161-molded case circuit breaker; 162-frame circuit breaker; 170-secondary protection control device; 171-micro-break circuit breaker; 172-transmission equipment; 180-signal transmission equipment. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] 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 present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0034] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0035] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0036] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Please refer to Figure 1-Figure 4 , this embodiment provides a partitioned low-voltage cabinet 100, which is used in a prefabricated substation or a combined substation.

[0038] A partitioned low-voltage cabinet 100 proposed in this embodiment includes a cabinet body 110, a first installation chamber 130, a second installation chamber 140 and an isolation plate 150; a panel 120 is provided on the cabinet body 110 so as to be openable and closable; the first installation chamber 130 is used for installing a primary boost device 160 and is arranged in the cabinet body 110; the second installation chamber 140 is used for installing a secondary protection control device 170 and is arranged in the cabinet body 110, and a plurality of partition plates 141 are arranged between the first installation chamber 130 and the second installation chamber 140; the isolation plate 150 is connected to the cabinet body 110 and is arranged in the panel 120, and the isolation plate 150 is arranged corresponding to the first installation chamber 130.

[0039] It is understandable that the first installation room 130 and the second installation room 140 are separated by setting a plurality of partition plates 141, and the primary boosting device 160 and the secondary protection control device 170 are separated, so as to improve the isolation of high temperature, protect the secondary protection control device 170 from damage to its components, and improve the stability of the equipment. In addition, by setting an openable panel 120 and an isolation plate 150 on the cabinet 110, the isolation plate 150 isolates the primary charged body of the primary boosting device 160, avoiding the risk of electric shock caused by accidental touch during secondary maintenance, and reducing the maintenance risk.

[0040] In this embodiment, the partitioned low-voltage cabinet 100 includes a cabinet body 110 .

[0041] Please refer to Figure 1 , Figure 1 The partitioned low-voltage cabinet 100 shown in FIG. 1 is not equipped with a primary boost device 160 , a secondary protection control device 170 and a panel 120 .

[0042] In this embodiment, the cabinet 110 includes a first cabinet 112 and a second cabinet 113 connected to each other, and side panels are installed on the first cabinet 112 and the second cabinet 113. The cabinet 110 can be started synchronously with the shell welding, which can improve production efficiency.

[0043] The first cabinet 112 and the second cabinet 113 are rectangular frame structures for installing side panels, the panel 120 and equipment and other structures; at the same time, the internal spaces of the first cabinet 112 and the second cabinet 113 are connected.

[0044] Specifically, the side panels (not shown) include a rear side panel, an upper side panel 111 and a lower side panel arranged in parallel, and a left side panel and a right side panel arranged in parallel; the upper side panel 111 is arranged on the upper side of the connected first cabinet 112 and the second cabinet 113; the lower side panel is arranged on the lower side of the connected first cabinet 112 and the second cabinet 113; the rear side panel is arranged on the rear side of the connected first cabinet 112 and the second cabinet 113; the left side panel is arranged on the left side of the first cabinet 112; and the right side panel is arranged on the right side of the second cabinet 113.

[0045] Please refer to Figure 2 Two groups of heat dissipation holes 1111 are provided on the upper side plate 111 , corresponding to the first installation chamber 130 and the second installation chamber 140 respectively.

[0046] Please refer to Figure 1 A first connecting plate is vertically mounted on the second cabinet 113; the first connecting plate is connected to the second cabinet 113 and is disposed at the open end of the second cabinet 113; and the first connecting plate is disposed parallel to the rear side plate. The first connecting plate is used to install the panel 120 and the isolation plate 150 together with the second cabinet 113.

[0047] The second connecting plate 114 is vertically mounted on the second cabinet 113; the second connecting plate 114 is connected to the second cabinet 113 and is arranged at the connection between the first cabinet 112 and the second cabinet 113; the second connecting plate 114 is arranged parallel to the right side plate or the left side plate. The width of the second connecting plate 114 is smaller than the width of the right side plate; the second connecting plate 114 is used to be fixedly mounted with the third connecting plate 115.

[0048] Please refer to Figure 1 , a third connecting plate 115 is installed in the first cabinet 112 and the second cabinet 113; the third connecting plate 115 is used to install a molded case short circuit breaker; the third connecting plate 115 is arranged in the first cabinet 112 and the second cabinet 113, one end of the third connecting plate 115 is connected to the first cabinet 112, and the other end is connected to the second cabinet 113, and the third connecting plate 115 is arranged parallel to the rear side plate. The third connecting plate 115 is arranged in the lower layer and the middle part of the first cabinet 112 and the second cabinet 113; one end of the second connecting plate 114 is close to one side of the third connecting plate 115, and the other end is close to one side of the third connecting plate 115.

[0049] In this embodiment, the partitioned low-voltage cabinet 100 includes a panel 120 .

[0050] Please refer to Figure 4 , Figure 4 The partitioned low voltage cabinet 100 shown in FIG. 1 is installed with a panel 120 .

[0051] Specifically, the plurality of panels 120 are disposed on the first cabinet 112 and the second cabinet 113 in an openable and closable manner through connecting members such as hinges.

[0052] The upper layer of the first cabinet 112 is provided with a panel 120 corresponding to the frame circuit breaker 162 , and the lower layer of the first cabinet 112 is provided with a panel 120 corresponding to the molded case circuit breaker 161 .

[0053] Among them, a panel 120 is set on the upper layer of the second cabinet 113 corresponding to the secondary protection control device 170, a panel 120 is set on the middle layer of the second cabinet 113 corresponding to the signal transmission device 180, and a panel 120 is set on the lower layer of the second cabinet 113 corresponding to the molded case circuit breaker 161.

[0054] It is worth mentioning that the panel 120 is provided with an installation opening 121 for placing some operating parts of the primary boost device 160 and the secondary protection control device 170 that need to be operated on the installation opening 121 of the panel 120. When performing maintenance, there is no need to open the cabinet for operation, reducing maintenance risks.

[0055] In this embodiment, the partitioned low-voltage cabinet 100 includes an isolation plate 150 .

[0056] Please refer to Figure 3 , Figure 3 The partitioned low-voltage cabinet 100 shown in FIG. 1 is installed with a primary boost device 160 , a secondary protection control device 170 and an isolation board 150 .

[0057] Specifically, the isolation plate 150 is disposed in the panel 120 and installed on the lower layer of the first cabinet 112 and the lower layer of the second cabinet 113 , and the isolation plate 150 is disposed corresponding to the disposable charged body of the molded case circuit breaker 161 .

[0058] Among them, the isolation plate 150 is made of organic glass, which can reduce the risk of electric shock during maintenance.

[0059] Please refer to Figure 1 In this embodiment, the partitioned low-voltage cabinet 100 includes a plurality of partition plates 141 .

[0060] Specifically, six partition plates 141 are installed on a mounting frame 142 to form a completely sealed first mounting chamber 130 , and the mounting frame 142 is connected to the cabinet 110 .

[0061] Among them, the micro-break switch of the secondary protection control device 170 is installed in the installation frame 142, and a partition plate 141 is set for isolation, which can reduce the temperature impact brought by the primary booster device 160; at the same time, it can also reduce the erosion of the secondary protection control device 170 by the external environment salt fog.

[0062] Please refer to Figure 1 In this embodiment, the partitioned low-voltage cabinet 100 includes a primary boost device 160 .

[0063] Specifically, the primary boost device 160 includes a molded case circuit breaker 161 and a frame circuit breaker 162. The frame circuit breaker 162 is arranged on the upper layer of the first cabinet 112 and connected to the first frame through a mounting plate; the molded case circuit breaker 161 is arranged on the lower layer of the first cabinet 112 and the lower layer of the second cabinet 113 and installed on the second connecting plate 114.

[0064] The upper end of the molded case circuit breaker 161 is connected to the copper busbar, and the lower end of the molded case circuit breaker 161 is connected to the external inverter.

[0065] Understandably, please refer to Figure 1-Figure 2 The upper layer of the first cabinet 112 , the lower layer of the first cabinet 112 , and the lower layer of the second cabinet 113 form a first installation chamber 130 .

[0066] Please refer to Figure 1 In this embodiment, the partitioned low-voltage cabinet 100 includes a secondary protection control device 170 .

[0067] Specifically, the secondary protection control device 170 includes a micro-circuit breaker 171 , which is installed on a mounting frame 142 within a plurality of partitions, and is disposed on an upper layer of the second cabinet 113 .

[0068] Among them, a signal transmission device 180 is set on the middle layer of the second installation room 140, and the signal transmission device 180 is communicatively connected with the transmission device 172 of the micro-circuit breaker 171.

[0069] Understandably, please refer to Figure 1-Figure 2 The middle layer of the second cabinet 113 and the upper layer of the second cabinet 113 form a second installation chamber 140 .

[0070] In summary, the partitioned low-voltage cabinet 100 proposed in this embodiment is provided with a plurality of partition plates 141 to separate the first installation chamber 130 and the second installation chamber 140, so as to separate the primary boosting device 160 and the secondary protection control device 170, thereby improving the isolation of high temperature, protecting the secondary protection control device 170 from damage to its components, and improving the stability of the equipment. In addition, by providing an openable panel 120 and an isolation plate 150 on the cabinet body 110, the isolation plate 150 isolates the primary charged body of the primary boosting device 160, thereby avoiding the risk of electric shock caused by accidental touch during secondary maintenance, and reducing the maintenance risk.

[0071] Furthermore, the partitioned low-voltage cabinet 100 forms a completely sealed second installation chamber 140 by providing a plurality of partition plates 141 and an installation frame 142. The second installation chamber 140 is completely sealed, thereby improving the protection of the secondary protection control device 170. At the same time, the second installation chamber 140 is completely sealed to reduce the erosion of the secondary protection control device 170 by salt fog in the external environment, thereby making the partitioned low-voltage cabinet 100 applicable to harsh environments such as high salt fog / saline-alkali land.

[0072] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A partitioned low-voltage cabinet, It is characterized in that include: A cabinet body, wherein a panel is provided on the cabinet body so as to be openable and closable; A first installation room, the first installation room is used to install a primary boost device and is arranged in the cabinet; a second installation room, the second installation room is used to install a secondary protection control device and is arranged in the cabinet, and a plurality of partition plates are arranged between the first installation room and the second installation room; An isolation plate is connected to the cabinet and is arranged in the panel, and the isolation plate is arranged corresponding to the first installation chamber.

2. The partitioned low-voltage cabinet according to claim 1, It is characterized in that The partitioned low-voltage cabinet further comprises a mounting frame, a plurality of partition plates are mounted on the mounting frame to form the second mounting chamber, and the mounting frame is connected to the cabinet body.

3. The partitioned low-voltage cabinet according to claim 1, It is characterized in that The cabinet is provided with heat dissipation holes, and the heat dissipation holes are arranged corresponding to the first installation chamber; An operation port is arranged on the panel.

4. The partitioned low-voltage cabinet according to claim 1, It is characterized in that The cabinet includes a first cabinet and a second cabinet connected to each other, and the first cabinet and the second cabinet are provided with side panels.

5. The partitioned low-voltage cabinet according to claim 4, It is characterized in that The first installation room is arranged in the first cabinet and in the lower layer of the second cabinet; The second installation room is arranged on the upper layer of the second cabinet, and a plurality of the partitions are connected to the second cabinet.

6. The partitioned low-voltage cabinet according to claim 5, It is characterized in that The primary boost device comprises a molded case circuit breaker and a frame circuit breaker, the frame circuit breaker is arranged on the upper layer of the first cabinet, and the molded case circuit breaker is arranged on the lower layer of the first cabinet and the lower layer of the second cabinet; The secondary protection control device includes a micro-circuit breaker, which is installed in a plurality of the partitions.

7. The partitioned low-voltage cabinet according to claim 6, It is characterized in that The isolation plates are installed on both the first cabinet and the second cabinet, and the isolation plates are arranged corresponding to the molded case circuit breakers.

8. The partitioned low-voltage cabinet according to claim 4, It is characterized in that The cabinet further comprises a first connecting plate, which is connected to the second cabinet and is arranged at an open end of the second cabinet; The first connecting plate is arranged parallel to the side plate arranged at the rear side.

9. The partitioned low-voltage cabinet according to claim 4, It is characterized in that The cabinet further includes a second connecting plate, which is connected to the second cabinet and is arranged at the connection between the first cabinet and the second cabinet; The second connecting plate is arranged parallel to the side plate arranged on the right side.

10. The partitioned low-voltage cabinet according to claim 4, It is characterized in that The cabinet further comprises a third connecting plate for mounting a molded case short circuit breaker, and the third connecting plate is arranged in the first cabinet and the second cabinet; One end of the third connecting plate is connected to the first cabinet, and the other end is connected to the second cabinet. The third connecting plate is arranged parallel to the side plate arranged at the rear side.

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