Folding door for power supply cabinet and power supply cabinet

Abstract

The utility model relates to a folding door for a power supply cabinet. The folding door at least comprises a first door leaf; the second door leaf is hinged to the cabinet body around a first rotating axis and is also hinged to the pivoting end of the first door leaf around a second rotating axis; wherein the folding door is designed to drive the first door leaf to pivot towards the second door leaf relative to the second rotating axis to be overlapped together when the second door leaf rotates around the first rotating axis to be opened. In this way, the folding door only occupies a small space in front of the cabinet and allows an operator to conveniently read the human-computer interface unit in front of the cabinet. The utility model also relates to a power supply cabinet with the folding door.

Description

Technical Field

[0001] The utility model relates to the technical field of power cabinets, and specifically relates to a folding door for a power cabinet and a power cabinet. Background Art

[0002] A power cabinet is an electrical device that contains an uninterruptible power supply module, thereby allowing it to provide uninterrupted, high-quality, and reliable AC power to loads such as data centers or computer rooms, and is a power supply device with functions of real-time protection and monitoring of the power supply status, which plays an important role in improving the power supply quality and ensuring the normal operation of equipment.

[0003] In order to protect the uninterruptible power supply module in the power cabinet from the external environment and prevent unauthorized access by operators to the uninterruptible power supply module, it is known that a front cabinet door that can be controllably opened or closed is provided on the front of the power cabinet. Currently, the front cabinet doors of power cabinets mainly have the following two forms:

[0004] 1. The entire front door opens single-fold. The entire front door can be an entire flat sheet metal part, and the width of the front door is basically the same as the width of the power cabinet itself. When the front door pivots to the left or right to open, the occupied space is close to the width of the power cabinet itself. As an example, for instance, reference can be made to the patent document with the Chinese utility model publication number CN218770681U. For this type of power cabinet, the disadvantage is that since the space occupied in front of the cabinet after the front door is opened is close to the width of the cabinet, the space in front of the cabinet is narrow, making it inconvenient for personnel and equipment to pass, maintain, and operate in the equipment compartment or other narrow electrical equipment rooms.

[0005] 2. The front door opens in two leaves. The two leaves of the door are respectively made of entire flat sheet metal parts, and the widths of the two leaves of the door are each less than half of the width of the cabinet. When the two leaves of the front door pivot to the left or right to open respectively, the occupied space is close to half of the width of the cabinet; in order to reduce the space occupied in front of the cabinet for operation, this solution uses double doors, and observation ports or other devices that allow operators to interact with the power cabinet are respectively installed on the two doors. For example, in order to facilitate the operator to perform local control on the power cabinet, a human-machine interface unit (HMI) that can communicate with the electrical units in the power cabinet via a serial cable or wireless communication can be provided, thereby allowing functions such as locally operating the electrical components in the power cabinet, checking events, and measuring values. At this time, for the two leaves of the front door that open in opposite directions, after the front door is opened, the HMI unit on the front door will also pivot to the side close to the power cabinet body along with the front door, which brings inconvenience to the operator to access the HMI unit.

[0006] Therefore, there is a technical need in the related technical field to improve the existing power cabinets to solve the deficiencies such as operation of the power cabinet in a limited space and improving the convenience of operators. Summary of the Utility Model

[0007] Accordingly, the object of the present utility model is to provide a folding door for a power cabinet, thereby overcoming the above-mentioned disadvantages of the prior art.

[0008] According to one aspect of the present utility model, there is provided a folding door for a power cabinet, which is designed to be hinged to one side of the cabinet body of the power cabinet so as to switch between an unfolded state of at least partially closing the cabinet body and a folded state of opening the cabinet body relative to the cabinet body. The folding door at least includes: a collapsible first door leaf having a free end and a pivoting end disposed opposite to each other; a pivotable second door leaf, wherein the second door leaf has a hinged end and a connecting end disposed opposite to each other, and the hinged end is hinged to the cabinet body around a first rotation axis and the connecting end is hinged to the pivoting end of the first door leaf around a second rotation axis; and the folding door is designed to drive the first door leaf to pivot towards the second door leaf around the second rotation axis and overlap with each other during the rotation and opening of the second door leaf around the first rotation axis.

[0009] Different from the front cabinet door in the prior art, the folding door in the present utility model allows the power cabinet to be arranged in a place with a relatively narrow front cabinet space (such as a container, etc.), or when the power cabinet with this folding door is under maintenance, a relatively sufficient front cabinet space can be left, and the smoothness of the front cabinet space passage is not blocked. As described below, when the folding door is fully opened, the first door leaf can still be in the area directly faced by the operator, so that the operator can conveniently read the data of any human-machine interface unit (if any) located in the first door leaf or operate on it.

[0010] As a preferred aspect of the present utility model, the folding door further includes a plurality of door hinges located at the hinged end of the cabinet body and the second door leaf, and the door hinges define a first rotation axis perpendicular to the base located below the cabinet body.

[0011] As a preferred aspect of the present utility model, the folding door further includes a folding hinge located between the first door leaf and the second door leaf, which includes a first hinge portion located at the pivoting end of the first door leaf and a second hinge portion located at the connecting end of the second door leaf, and the first hinge portion and the second hinge portion jointly define a second rotation axis parallel to the first rotation axis.

[0012] As a preferred aspect of the present utility model, the folding door further includes a human-machine interface unit located in the first door leaf, and the human-machine interface unit is located in front of the cabinet body and is still located in front of the cabinet body when the first door leaf pivots to overlap with the second door leaf.

[0013] As a preferred aspect of the present utility model, the folding door further includes a door lock located in the second door leaf, which can latch and hold the first door leaf and the second door leaf in the unfolded state of the folding door.

[0014] As a preferred aspect of the present invention, the width of the first door leaf is substantially equal to the width of the second door leaf, or is smaller than the width of the second door leaf.

[0015] As a preferred aspect of the utility model, the folding door further comprises a guide wheel located below any one of the first door leaf and the second door leaf, wherein the guide wheel is positioned to be substantially flush with the lower surface of the inner side of the cabinet body. During the closing process of the door panel, when the door panel approaches the cabinet body, the falling of the door panel caused by the excessive weight of the door panel can be corrected, so that the door panel can be closed smoothly.

[0016] As a preferred aspect of the utility model, the pivot end of the first door leaf and the connecting end of the second door leaf are chamfered to have a certain angle. This inclination can prevent the operator's fingers from being caught in the gap between the two door panels during the flattening of the two doors.

[0017] As another aspect of the utility model, it also relates to a power supply cabinet, which includes a cabinet body, a plurality of uninterruptible power supply modules arranged in the cabinet body and a front cabinet door hinged to the cabinet body, wherein the front cabinet door includes a folding door hinged to one side of the cabinet body, and also includes a third door leaf hinged to the other opposite side of the cabinet body.

[0018] As a preferred aspect of the present invention, the front door of the power cabinet has a width of not less than 700 mm.

[0019] Some of the other features and advantages of the present invention will be apparent to those skilled in the art after reading this application, and the other parts will be described in the following specific embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The embodiments of the present invention are described in detail below with reference to the accompanying drawings, wherein:

[0021] Figure 1 is a stereoscopic diagram of an embodiment of a power cabinet according to the utility model, wherein the front cabinet door of the power cabinet is in an open state to show its internal structure;

[0022] Figure 2 yes Figure 1 A left side view of the folding door of the front door of the power cabinet in the folded state;

[0023] Figure 3 yes Figure 1 A front view of a folding door of a front door of a power cabinet in a folded state;

[0024] Figure 4 yes Figure 1 A right side view of the folding door of the front door of the power cabinet in the folded state;

[0025] Figure 5A is Figure 1 a top view of the open state of the folding door of the front cabinet door of the power cabinet in

[0026] Figure 5B is Figure 1 a front view of the open state of the folding door in

[0027] Figure 6 is Figure 1 a rear view of the open state of the folding door of the front cabinet door of the power cabinet in

[0028] Figure 7 is Figure 6 an enlarged view of the door hinge of the folding door of the power cabinet in

[0029] Figure 8 is Figure 6 an enlarged view of the folding hinge of the folding door of the power cabinet in

[0030] Figure 9 is a perspective view of an embodiment of a power cabinet according to the present utility model, wherein the front cabinet door of the power cabinet closes the power cabinet.

[0031] Description of reference numerals:

[0032] 100, power cabinet; 101, uninterruptible power supply module; 102, cabinet body;

[0033] 103, base; 10, first door leaf; 10A, free end; 10B, pivoting end;

[0034] 11, HMI unit; 20, second door leaf; 20A, connection end; 20B, hinged end;

[0035] 30, folding hinge; 30A, first hinge part; 30B, second hinge part;

[0036] 40, door hinge; 50, third door leaf; R1, first rotation axis;

[0037] R2, second rotation axis; 60, guide wheel; 70 - door lock; Detailed implementation manners

[0038] Now referring to the drawings, a schematic solution of the power cabinet and its folding door disclosed by the present utility model will be described in detail. Although the drawings are provided to present some embodiments of the present utility model, the drawings do not have to be drawn according to the dimensions of the specific implementation manners, and some features may be enlarged, removed, or partially sectioned to better show and explain the disclosure of the present utility model. Some components in the drawings may be adjusted in position according to actual needs without affecting the technical effects. Phrases such as "in the drawings" or similar terms appearing in the specification do not have to refer to all the drawings or examples.

[0039] Certain directional terms used hereinafter to describe the drawings, such as "front", "rear", "inner", "outer", "upper", "lower" and other directional terms, will be understood to have their normal meanings and refer to those directions involved when normally viewing the drawings. Unless otherwise specified, the directional terms described in this specification are generally in accordance with the conventional directions understood by those skilled in the art.

[0040] The terms "first", "the first", "second", "the second" and their similar terms used in the present utility model do not indicate any order, quantity or importance in the present utility model, but are used to distinguish one component from other components.

[0041] To further understand the purpose, structure, features and functions of the present utility model, the following will be described in detail in conjunction with embodiments.

[0042] In Figure 1 a power cabinet 100 according to the present utility model is shown, and the power cabinet includes a cabinet body 102 and a plurality of uninterruptible power supply modules 101. Among them, the cabinet body 102 generally in the shape of a cube has a plurality of installation cavities, and the plurality of installation cavities can be designed to be arranged at intervals along the height direction of the cabinet body 102 so as to allow the plurality of uninterruptible power supply modules 101 to be stacked on top of each other in the installation cavities surrounded by the cabinet body 102, and each uninterruptible power supply module 101 and each installation cavity can be arranged in one-to-one correspondence and fixedly arranged with each other. Not shown, each uninterruptible power supply module 101 can be plugged and matched with the busbar assembly, which is beneficial to ensuring the normal operation after the module is installed and also meets the user's usage requirements. By setting the above structure, during the use of the device, the user can adjust the number of uninterruptible power supply modules 101 placed in the installation cavity according to needs, so as to improve the applicable range of the device.

[0043] Here, the power cabinet 100 further includes a front cabinet door hinged to the cabinet body 102, and the front cabinet door includes a Figure 1 third door leaf 50 hinged to the left side of the cabinet body 102 in Figure 1 and a folding door hinged to the right side of the cabinet body. As Figure 1 shown, when the third door leaf 50 opens clockwise towards the left in Figure 1 and the folding door opens counterclockwise towards the right in

[0044] it allows the electrical equipment of the cabinet body 102 to be exposed with the maximum width to allow the operator to approach. Figure 1-6 shown, in the present utility model, the folding door includes at least two first door leaves 10 that can be folded and sequentially connected end to end (here preferably can be closed with the third door leaf 50) and a pivotable second door leaf 20. Preferably inFigure 6 As shown, the first door leaf 10 has a relatively arranged free end 10A and a pivot end 10B, where the free end can be closed with the third door leaf or pivot away from the third door leaf 50 freely. The second door leaf 20 also has a relatively arranged hinge end 20B and a connection end 20A. The adjacent first door leaf 10 and second door leaf 20 are hinged to each other by a folding hinge 30 preferably shown in Figure 8 so that the folding door can be switched between the unfolded state and the folded state when the adjacent first door leaf 10 and second door leaf 20 rotate relative to each other. Preferably, the first rotation axis R1 formed by a plurality of door hinges 40 (preferably 4 door hinges 40) between the folding door and the cabinet housing 102 is parallel to the second rotation axis R2 formed by a plurality of folding hinges 30 between the adjacent first door leaf 10 and second door leaf 20, and both extend in a vertical direction perpendicular to the base 103 located below the cabinet body 102.

[0045] Furthermore, as preferably shown in Figure 1 and Figure 3 a door lock 70 can also be provided on the second door leaf 20 to latch the first door leaf 10 and the second door leaf 20 together to keep the front cabinet door in the Figure 9 unfolded state shown. Since the door lock 70 is located on the second door leaf 20, the cabinet body 102 can be provided without a middle upright column in the middle, which is beneficial to the installation of equipment inside the cabinet and the overall installation protection.

[0046] Specifically, as shown in Figure 9 when the front cabinet door of the power cabinet 100 is in the closed position, it is in the unfolded state. At this time, the first door leaf 10, the second door leaf 20 and the third door leaf 50 that jointly form the front cabinet door are all in the same plane, thus completely covering the access opening of the cabinet body 102. With the door lock 70 located between the second door leaf 20 and the first door leaf 10, the second door leaf 20 and the first door leaf 10 cannot be displaced relative to each other, so as to reliably keep the power cabinet 100 in its closed state.

[0047] When it is necessary to operate the inside of the power cabinet 100, such as replacing or repairing the uninterruptible power supply module 101 therein, referring to Figure 1 , the operator first opens the door lock 70 located between the first door leaf 10 and the second door leaf 20 to release the rotational lock between the two. Thereafter, optionally, the third door leaf 50 and / or the first door leaf 10 and the second door leaf 20 are allowed to pivot clockwise or counterclockwise towards the cabinet side to open. As a result, the folding door composed of the adjacent first door leaf 10 and second door leaf 20 in the front cabinet door can be switched from the open state in FIGS. 5-6 and 9 to, for example, in Figure 2-4 and Figure 1The folded state shown in the figure. In the folded state, the first door leaf 10 and the second door leaf 20 in the folding door can be superposed along the normal direction of the cabinet surface of either one of them. As a result, the folding door only occupies a relatively small space in front of the cabinet, and also leaves a space on one side to facilitate the movement of large devices or tools into the maintenance passage inside the cabinet.

[0048] It is easy to understand that compared with the technical problem that the structure strength of the sheet metal part is insufficient when the size (especially the width) of the front cabinet door of the single-leaf door is relatively large, the width of the single door leaf of the present utility model is relatively small, and a plurality of adjacent first door leaves 10 and second door leaves 20 are connected by folding hinges 30, so that the overall structural strength of the cabinet door is higher. When the overall size of the cabinet door is relatively large (here, for example, the width of the front cabinet door is about 700 mm or more), the front cabinet door provided in this embodiment still has satisfactory structural strength.

[0049] As a preferred aspect, here located Figure 9 The hinged end of the second door leaf 20 on the far right in the figure can be connected to one side wall of the cabinet body 102 of the power cabinet 100 through a plurality of door hinges 40 preferably shown in Figure 7 the figure, here is its right side wall, so that a first rotation axis R1 around which the second door leaf 20 can pivot is formed by means of a plurality of door hinges 40. As described above, the end of the second door leaf 20 for being hinged to the cabinet body 102 around the first rotation axis R1 is called the hinged end 20B, and the end of the second door leaf 20 far from the first rotation axis R1 is called the connection end 20A.

[0050] As Figure 8 shown, a second hinge portion 30B of the folding hinge 30 is provided at the connection end 20A, and correspondingly, a first hinge portion 30A cooperating with the second hinge portion 30B is provided at the pivoting end 10B of the first door leaf 10 adjacent to the second door leaf 20. Thus, a second rotation axis R2 around which the first door leaf 20 can pivot is formed by means of a plurality of folding hinges 30, and further allows the first door leaf 10 to be unfolded or folded relative to the second door leaf 20.

[0051] In this embodiment, the folding door is composed of a first door leaf 10 and a second door leaf 20 that are hinged to each other. Of course, a folding door design with more than two door leaves is also feasible to meet the requirements of large-size cabinets or the needs of particularly narrow spaces in front of the cabinets. When the folding door is in the closed position, which is best shown in Figure 5A and 5B the figure, the first door leaf 10 and the second door leaf 20 are unfolded to the same plane and the relative angle between them is 0°, so as to close the access to the power cabinet 100. In order to avoid unwanted interference between the first door leaf 10 and the second door leaf 20 in the unfolded state or pinching the fingers of the operator, as Figure 5AAs shown, the first door leaf 10 and the second door leaf 20 are chamfered at an inclined angle at the adjacent edges of each other. This slope can prevent the operator's fingers from being pinched in the gap between the two door panels during the process of flattening the two doors. If better sealing between the first door leaf 10 and the second door leaf 20 is required, a sealing strip can preferably be added between them.

[0052] When the folding door needs to be opened, the second door leaf 20 rotates around the first rotation axis R1. At this time, the first door leaf 10 and the second door leaf 20 can also rotate around the second rotation axis R2 between them simultaneously until the two are folded to approximately 180°, that is, the inner sides of the cabinet surfaces of the two are opposite and even in contact with each other (best shown in Figure 3 ), so that the power cabinet 100 with this folding door can be used in places where the space in front of the cabinet is relatively narrow, or when the power cabinet 100 with this folding door is being repaired, a relatively sufficient space in front of the cabinet can be left, and it does not block the smooth passage of the space in front of the cabinet.

[0053] As Figure 5B shown, here, the width of the first door leaf 10 and the width of the second door leaf 20 are generally equal here. However, it can be conceived that the width of the second door leaf 20 can be designed to be greater than the width of the first door leaf 10. At this time, the second door leaf 20 is used as the main door leaf in the folding door and the first door leaf 10 is used as the auxiliary door leaf. At this time, when the second door leaf 20 as the main door leaf rotates and opens, it can drive the first door leaf 10 as the auxiliary door leaf to move to one side of the cabinet body 102 as a whole, so as to facilitate the maintenance personnel to quickly open the front cabinet door and improve the maintenance speed.

[0054] As a preferred aspect, preferably, an HMI unit 11 is further included in this folding door. Specifically, a human-machine interface unit (HMI) such as an operator interface unit is provided at an appropriate height on the first door leaf 10, which allows the operator to perform on-site control of the power cabinet to provide communication connection with the electrical units in the power cabinet by means of a serial cable or wireless communication, so as to allow functions such as on-site operation of the electrical components in the power cabinet, viewing events, and measuring values. Since the first door leaf 10 can pivot around the second rotation axis R2 in a manner approaching the second door leaf 20 when the folding door rotates and opens around the first rotation axis R1. As a result, as best shown in Figure 1 , when the folding door is fully opened, the HMI unit 11 located in the first door leaf 10 is still within the area directly facing the operator, so that the operator can conveniently read the data therein or operate on it.

[0055] As a preferred aspect, the folding door according to the present utility model further includes a guiding wheel 60 located below either the first door leaf 10 or the second door leaf 20, wherein the height of the guiding wheel 60 in the first door leaf 10 and the second door leaf 20 is designed to be substantially flush with the lower surface of the cabinet body 102. The purpose of adding the guiding wheel 60 is that if the width of the front cabinet door is about 700 millimeters or more, at this time, the self-weights of the first door leaf 10 and the second door leaf 20 are quite large. Therefore, after long-term use, the hinged part between them is likely to be deformed and the first door leaf 10 and the second door leaf 20 sink relative to the cabinet body 102. After adding the guiding wheel 60, on the one hand, in the unfolded state, the self-weights of the first door leaf 10 and the second door leaf 20 can be borne by means of its abutment against the lower surface of the cabinet body 102, thereby preventing the undesired deformation of the hinged part between them. Further, when the first door leaf 10 and the second door leaf 20 are pivotally opened or closed, the smooth pivoting in place can also be achieved by means of the sliding contact between the guiding wheel 60 and the lower surface of the cabinet body 102. In other words, during the process of closing the door panel, when the door panel approaches the cabinet body of the cabinet, the guiding wheel can correct the downward drop of the door panel caused by the overweight of the door panel, so that the door panel can smoothly complete the closing.

[0056] It should be understood that although this specification is described according to each embodiment, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A folding door for a power cabinet, which is designed to be hinged to one side of a cabinet body of the power cabinet so as to switch between an unfolded state of at least partially closing the cabinet body and a folded state of opening the cabinet body relative to the cabinet body, wherein the folding door is characterized by: The folding door at least comprises: A foldable first door leaf having a free end and a pivot end disposed opposite to each other; A pivotable second door leaf, wherein the second door leaf has a hinged end and a connecting end arranged opposite to each other, wherein the hinged end is hinged to the cabinet body around a first rotation axis and the connecting end is hinged to the pivoted end of the first door leaf around a second rotation axis; The folding door is designed to drive the first door leaf to pivot toward the second door leaf about the second rotation axis to overlap each other during the second door leaf is rotated and opened about the first rotation axis.

2. The folding door according to claim 1, characterized in that: The folding door further comprises a plurality of door hinges located at the hinged ends of the cabinet body and the second door leaf, wherein the door hinges define a first rotation axis perpendicular to a base located below the cabinet body.

3. The folding door according to claim 2, characterized in that: The folding door also includes a folding hinge located between the first door leaf and the second door leaf, which includes a first hinge part located at the pivot end of the first door leaf and a second hinge part located at the connecting end of the second door leaf, wherein the first hinge part and the second hinge part jointly define a second rotation axis parallel to the first rotation axis.

4. The folding door according to claim 1, characterized in that: The folding door further comprises a human-machine interface unit located in the first door leaf, wherein the human-machine interface unit is located in front of the cabinet and is still located in front of the cabinet when the first door leaf is pivoted to overlap with the second door leaf.

5. The folding door according to claim 1, characterized in that: The folding door further comprises a door lock located in the second door leaf and capable of latching the first door leaf and the second door leaf to maintain the folding door in an unfolded state.

6. The folding door according to claim 1, characterized in that: The width of the first door leaf is substantially equal to or smaller than the width of the second door leaf.

7. The folding door according to claim 1, characterized in that: The folding door further includes a guide wheel located below any one of the first door leaf and the second door leaf, wherein the guide wheel is positioned to be substantially flush with a lower surface of the inner side of the cabinet.

8. The folding door according to claim 1, characterized in that: The pivot end of the first door leaf and the connecting end of the second door leaf are chamfered to have a certain angle.

9. A power cabinet, comprising a cabinet body, a plurality of uninterruptible power supply modules arranged in the cabinet body, and a front cabinet door hinged to the cabinet body, wherein the front cabinet door comprises a folding door hinged to one side of the cabinet body, wherein the front cabinet door comprises a folding door hinged to one side of the cabinet body, and wherein: The folding door is a folding door as claimed in any one of claims 1 to 8, and further comprises a third door leaf hinged to the other side opposite to the cabinet.

10. The power cabinet according to claim 9, characterized in that: The front door of the power cabinet has a width of not less than 700 mm.

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