A switch cabinet drawer and switch cabinet

Abstract

This utility model relates to the field of switchgear technology, and more particularly to a switchgear drawer and switchgear. An embodiment of this application provides a switchgear drawer, including a drawer body and an unlocking mechanism. A trigger is provided on the panel of the drawer body; the unlocking mechanism is disposed within the drawer body and includes a transmission component and two support arms. The transmission component is connected to the trigger, and the two support arms are respectively disposed on both sides of the transmission component and are both mounted on the drawer body. When the trigger is activated, the transmission component can drive the two support arms to lift, thereby unlocking the drawer body; wherein, each support arm is equipped with an insulating structure. In the switchgear drawer and switchgear provided by this application, when unlocking the drawer body, the support arms, after being lifted, will not directly touch the phase wire; instead, the insulating structure touches the phase wire. Under the insulating effect of the insulating structure, an accident of tripping of the low-voltage incoming circuit breaker will not occur, reducing economic losses.

Description

Technical Field

[0001] This utility model relates to the field of switch cabinet technology, and in particular to a switch cabinet drawer and a switch cabinet. Background Technology

[0002] The main function of switchgear is to open, close, control, and protect electrical equipment during the power generation, transmission, distribution, and energy conversion processes of a power system. To prevent misoperation, ensure the stable operation of the power system, and protect equipment and personnel safety, switchgear drawers are often equipped with unlocking mechanisms; that is, the drawer can only be opened after unlocking the mechanism. The unlocking mechanism is located inside the drawer. During the use of the switchgear, vibration, maintenance, and other reasons can cause internal electrical components or wiring to shift (especially in 1 / 2-inch drawers where the interior is more compact). This often leads to electrical accidents when operating the unlocking mechanism during power outages or restorations, causing the low-voltage incoming circuit breaker to trip and resulting in serious economic losses to production. Utility Model Content

[0003] This application provides a switch cabinet drawer and switch cabinet, which to some extent improves the technical problem in the related technology that electrical accidents often occur when the unlocking mechanism is operated during power outage and restoration, resulting in the tripping of the low-voltage incoming circuit breaker and causing serious economic losses to production.

[0004] In a first aspect, embodiments of this application provide a switch cabinet drawer, comprising:

[0005] The drawer body has a trigger element on its panel;

[0006] An unlocking mechanism is provided inside the drawer body. The unlocking mechanism includes a transmission component and two support arms. The transmission component is connected to the trigger component. The two support arms are respectively located on both sides of the transmission component and are both assembled to the drawer body. When the trigger component is triggered, the transmission component can drive the two support arms to lift up in order to unlock the drawer body.

[0007] Each of the aforementioned arms is equipped with an insulating structure.

[0008] In some embodiments, the support arm includes a main board, a first mating part, and a second mating part. The first mating part and the second mating part are located at both ends of the main board. The first mating part mates with the transmission part, and the second mating part mates with the drawer body. The insulating structure is located on the top of the main board between the first mating part and the second mating part.

[0009] In some embodiments, the insulating structure has a mounting groove that snaps onto the top of the motherboard.

[0010] In some embodiments, the insulating structure includes a top plate and two side plates, the two side plates being disposed on opposite sides of the top plate to form the mounting groove.

[0011] In some embodiments, the lower part of both sides is provided with a gripping ramp, which is inclined from the outside to the inside.

[0012] In some embodiments, the two side plates are elastic.

[0013] In some embodiments, the insulating structure is provided with a positioning structure for positioning the insulating structure and the motherboard.

[0014] In some embodiments, the positioning structure is a positioning block, and the motherboard has a positioning groove, in which the positioning block is engaged.

[0015] In some embodiments, the insulating structure is made of PC board.

[0016] Secondly, embodiments of this application provide a switch cabinet, including a cabinet body and the switch cabinet drawer described above, wherein the switch cabinet drawer is installed inside the cabinet body.

[0017] The beneficial effects of this application are as follows:

[0018] The switch cabinet drawer and switch cabinet provided in this application have an insulating structure installed on each of the support arms. Therefore, when the drawer body is unlocked, the support arm will not directly touch the phase wire after being lifted. Instead, the insulating structure will touch the phase wire. Under the insulation effect of the insulating structure, the low-voltage incoming circuit breaker will not trip, thus reducing economic losses. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model.

[0020] Figure 1 A schematic diagram of the switch cabinet drawer is shown.

[0021] Figure 2 A schematic diagram of the unlocking mechanism is shown.

[0022] Figure 3 It shows Figure 2 Assembly diagram of the central support arm and insulation structure.

[0023] Figure 4 It shows Figure 3 A structural diagram from another perspective.

[0024] Figure 5 It shows Figure 4 Sectional view of AA.

[0025] Explanation of reference numerals in the attached figures:

[0026] 10-Switch cabinet drawer, 100-Drawer body, 110-Trigger element, 200-Unlocking mechanism, 210-Transmission element, 211-Unlocking linkage, 212-Crossbeam, 220-Support arm, 221-Main board, 222-First mating part, 223-Second mating part, 224-Positioning groove, 300-Insulation structure, 310-Top plate, 320-Side plate, 321-Grip bevel, 330-Mounting groove, 340-Positioning structure. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] It should be noted that all directional indications in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0031] The main function of switchgear is to open, close, control, and protect electrical equipment during the power generation, transmission, distribution, and energy conversion processes of a power system. To prevent misoperation, ensure the stable operation of the power system, and protect equipment and personnel safety, switchgear drawers are often equipped with unlocking mechanisms; that is, the drawer can only be opened after unlocking the mechanism. The unlocking mechanism is located inside the drawer. During the use of the switchgear, vibration, maintenance, and other reasons can cause internal electrical components or wiring to shift (especially in 1 / 2-inch drawers where the interior is more compact). This often leads to electrical accidents when operating the unlocking mechanism during power outages or restorations, causing the low-voltage incoming circuit breaker to trip and resulting in serious economic losses to production.

[0032] To address the aforementioned technical problems to some extent, this application provides a switch cabinet drawer and switch cabinet. When the drawer body is unlocked, the support arm does not directly touch the phase wire after being raised. Instead, the insulation structure touches the phase wire. Under the insulation effect of the insulation structure, the low-voltage incoming circuit breaker will not trip, thus reducing economic losses.

[0033] The embodiments of this application are described below with reference to the accompanying drawings:

[0034] Please see Figures 1-3 This application provides a switch cabinet drawer 10, including a drawer body 100 and an unlocking mechanism 200. A trigger 110 is provided on the panel of the drawer body 100; the unlocking mechanism 200 is disposed inside the drawer body 100, and includes a transmission member 210 and two support arms 220. The transmission member 210 is connected to the trigger 110, and the two support arms 220 are respectively disposed on both sides of the transmission member 210, and both support arms 220 are mounted on the drawer body 100. When the trigger 110 is triggered, the transmission member 210 can drive the two support arms 220 to lift, thereby unlocking the drawer body 100; wherein, each support arm 220 is equipped with an insulating structure 300.

[0035] The drawer body 100 is the basic component of the switch cabinet drawer 10, used to provide installation and protection for other components of the switch cabinet drawer 10. The unlocking mechanism 200 is disposed inside the drawer body 100, used to unlock the drawer body 100, so that the drawer body 100 can be opened or closed.

[0036] The unlocking mechanism 200 includes a transmission component 210 and two support arms 220. Since the transmission component 210 is connected to the trigger component 110 and the two support arms 220 are connected to the transmission component 210, the trigger component 110 can apply an unlocking force to the transmission component 210 when it is triggered, so that the transmission component 210 drives the two support arms 220 to lift. Since the two support arms 220 are both mounted on the drawer body 100, lifting the two support arms 220 can unlock the drawer body 100, allowing the drawer to move.

[0037] Specifically, the transmission component 210 includes an unlocking linkage 211 and a crossbeam 212. One end of the unlocking linkage 211 is connected to the trigger 110, and the other end is connected to the crossbeam 212. Two support arms 220 are respectively located at both ends of the crossbeam 212. When the trigger 110 is activated, the unlocking linkage 211 drives the crossbeam 212 to move, and the crossbeam 212 drives the two support arms 220 to lift, thereby unlocking the drawer body 100. The trigger 110 can be a button, which is activated when the user presses it.

[0038] It should be noted that the scheme of unlocking the drawer body 100 by pressing the button to lift the two support arms 220 through the unlocking linkage 211 and the crossbeam 212, as well as the structure of the unlocking linkage 211, the crossbeam 212 and the support arms 220, are all existing technologies. You can refer to the unlocking mechanism 200 of the Siemens SIVACON-8PT low-voltage switchgear, and it will not be described in detail here.

[0039] In related technologies, the low-voltage incoming circuit breaker often trips when the power outage and restoration operation unlocking mechanism 200 is used. During the applicant's research on this problem, it was found that the support arm 220 is prone to touching the phase wire during the lifting process, causing electrical accidents such as phase-to-ground and phase-to-phase disconnection. Based on this, in this embodiment, each support arm 220 is equipped with an insulating structure 300 made of insulating material. Therefore, when unlocking the drawer body 100, the support arm 220 will not directly touch the phase wire after being lifted; instead, the insulating structure 300 will touch the phase wire. Under the insulating effect of the insulating structure 300, the low-voltage incoming circuit breaker will not trip, reducing economic losses.

[0040] Please see Figure 3 and Figure 4 In some embodiments, the support arm 220 includes a main board 221, a first mating part 222 and a second mating part 223. The first mating part 222 and the second mating part 223 are respectively disposed at both ends of the main board 221. The first mating part 222 cooperates with the transmission part, and the second mating part 223 cooperates with the drawer body 100. An insulating structure 300 is disposed on the top of the main board 221 between the first mating part 222 and the second mating part 223.

[0041] The second mating part 223 is connected to the top of the main board 221, thus partially obscuring the top of the main board 221. Since the first mating part 222 mates with the transmission part, and the second mating part 223 mates with the drawer body 100, in order not to affect the mating function of the first mating part 222 and the second mating part 223, the insulating structure 300 is only provided on the main board 221 portion between the first mating part 222 and the second mating part 223. Furthermore, since the top of the main board 221 is prone to contact with the live wire, the insulating structure 300 is provided on the top of the main board 221. Specifically, both the first mating part 222 and the second mating part 223 can be mated with the transmission part and the drawer body 100 respectively by snap-fit.

[0042] Please see Figure 4 and Figure 5 In some embodiments, the insulating structure 300 has a mounting groove 330 that snaps onto the top of the motherboard 221, thereby enabling the insulating structure 300 to be mounted on the motherboard 221. Furthermore, the insulating structure 300 is connected to the motherboard 221 via a snap-fit ​​connection, facilitating the installation and removal of the insulating structure 300.

[0043] Specifically, the insulation structure 300 includes a top plate 310 and two side plates 320, which are respectively disposed on both sides of the top plate 310 to form a mounting groove 330, which is snapped onto the top of the main board 221.

[0044] Please see Figure 5 In some embodiments, the lower part of both sides is provided with a gripping slope 321, which is inclined from the outside to the inside, so that the user can hold it by hand and thus facilitate the user to install the insulation structure 300.

[0045] In some embodiments, the two side panels 320 are elastic. When the user installs the insulating structure 300 onto the motherboard 221, the mounting slot 330 is directly snapped onto the motherboard 221. The two side panels 320 are elastic, meaning that they can slightly open when snapped on, thus facilitating user installation.

[0046] Specifically, the material of the insulating structure 300 can be a PC (Polycarbonate) sheet. PC sheets, also known as polycarbonate sheets, are mainly composed of polycarbonate. This material has excellent electrical insulation properties and high elasticity, allowing it to deform under external force and return to its original shape after the force is removed. The PC sheet can be heated and bent to form the mounting groove 330.

[0047] Please see Figure 5In some embodiments, the insulating structure 300 is provided with a positioning structure 340, which is used to position the insulating structure 300 and the main board 221, thereby fixing the relative position of the insulating structure 300 and the main board 221, ensuring the insulation effect on the support arm 220, and making the insulating structure 300 more stably installed on the main board 221.

[0048] Specifically, the positioning structure 340 is a positioning block, which can be set on the top plate 310. In other words, the positioning block is set on the top wall of the mounting groove 330. The main board 221 has a positioning groove 224, and the positioning block is engaged in the positioning groove 224, thereby realizing the positioning of the insulating structure 300 on the main board 221.

[0049] Based on the same inventive concept, this application provides a switch cabinet, including a cabinet body and switch cabinet drawers 10, wherein the switch cabinet drawers 10 are installed inside the cabinet body. The beneficial effects of the switch cabinet provided in this application are the same as the beneficial effects of the switch cabinet drawers 10 described above, and will not be repeated here.

[0050] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0051] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. Switchgear drawer, characterized in that, include: The drawer body has a trigger element on its panel; An unlocking mechanism is disposed within the drawer body. The unlocking mechanism includes a transmission component and two support arms. The transmission component is connected to a trigger component. The two support arms are disposed on both sides of the transmission component and are both mounted on the drawer body. When the trigger component is activated, the transmission component can drive the two support arms to lift, thereby unlocking the drawer body. Each support arm includes a main board, a first mating part, and a second mating part. The first mating part and the second mating part are disposed at both ends of the main board. The first mating part mates with the transmission component, and the second mating part mates with the drawer body. An insulating structure is disposed on the top of the main board between the first mating part and the second mating part. Each of the support arms is equipped with an insulating structure, which includes a top plate and two side plates. The two side plates are located on both sides of the top plate to form a mounting groove. The mounting groove is snapped into the top of the main board. The lower part of each of the two side plates is provided with a gripping slope, which is inclined from the outside to the inside.

2. The switch cabinet drawer according to claim 1, characterized in that, Both side plates are elastic.

3. The switch cabinet drawer according to claim 1, characterized in that, The insulating structure is provided with a positioning structure, which is used to position the insulating structure and the motherboard.

4. The switch cabinet drawer according to claim 3, characterized in that, The positioning structure is a positioning block, and the motherboard has a positioning groove, in which the positioning block is engaged.

5. The switch cabinet drawer according to any one of claims 1-4, characterized in that, The insulating structure is made of PC board.

6. A switch cabinet, characterized in that, It includes a cabinet and a switch cabinet drawer as described in any one of claims 1-5, wherein the switch cabinet drawer is installed in the cabinet.

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