Uninterruptible power supply and display assembly for uninterruptible power supply

Abstract

The utility model relates to an uninterruptible power supply and a display assembly used for the uninterruptible power supply. The uninterruptible power supply comprises: a housing defining an internal accommodation space and an opening communicated with the accommodation space; the baffle is detachably connected to the shell and can cover the opening; the display assembly comprises a bottom frame, the bottom frame is suitable for being movably installed on the shell and is provided with a clamping part, and the clamping part is constructed to be clamped with the baffle in the state that the baffle covers the opening and limit the baffle to be detached from the shell and is further constructed to be separated from the baffle and release the limitation; and a display unit attached to the chassis.

Description

TECHNICAL FIELD

[0001] The utility model relates to power supply equipment especially uninterrupted power supply and display assembly for uninterrupted power supply. BACKGROUND

[0002] Uninterruptible power supply (UPS) is a kind of energy storage device that provides backup ac power supply for load equipment to maintain normal operation under the condition of abnormal power grid. In general, uninterrupted power supply is used to maintain the uninterrupted operation of critical equipment or precision instruments such as computers or switches, to prevent computer data loss, telephone communication network interruption or instrument loss of control. For example, data center power supply system is a typical UPS system, in which the main power supply of city power can provide three-phase ac (AC) electric power to one or more UPS systems supporting critical data center load. When the main power supply of city power experiences power failure, the data center UPS can take on the function of power supply to critical load.

[0003] UPS can be roughly divided into tower (also known as "vertical") and rack according to its structure. Tower UPS is a traditional UPS structure, which needs to occupy a separate storage space, while rack UPS can be installed in a standard cabinet to adapt to the overall layout requirements of the machine room space.

[0004] Regardless of the UPS structure, LCD display assembly needs to be set at the outermost part for monitoring operation and operation. The common LCD assembly at present is installed on the surface of UPS shell by bolts. If maintenance is needed for UPS, the bolts need to be removed with the help of tools first, then the LCD assembly is removed, and then the internal elements of UPS can be accessed. During the process of removing the LCD assembly, attention should also be paid to the wire arrangement to avoid damage. Many times, the surface of the LCD assembly itself also needs to be provided with, for example, decorative cover or protective cover, which further increases the complexity of UPS maintenance. In addition, such design leads to the splitting of the panel of UPS into multiple parts, which not only causes poor overall feeling of the product, but also weakens the strength of single part, and increases the cost. The increase of the number of parts that need to be separately split also leads to the difficulty of design and processing and the increase of the size of LCD display assembly, which is obviously not conducive to the development trend of miniaturization and portability. SUMMARY

[0005] The utility model aims at providing a display assembly for uninterrupted power supply, which can at least solve part of the above technical problems.

[0006] The utility model also aims at providing an uninterrupted power supply applying the improved display assembly.

[0007] According to one aspect of the present invention, a display assembly for an uninterruptible power supply is provided, the uninterruptible power supply comprising: a housing defining an internal accommodating space and an opening communicating with the accommodating space; a baffle detachably connected to the housing and capable of covering the opening; the display assembly comprising: a base frame adapted to be movably mounted on the housing and having a snap-fitting portion, the snap-fitting portion being configured to snap-fit ​​with the baffle in a state where the baffle covers the opening and restrict removal of the baffle from the housing, and also being configured to be detachable from the baffle and release the restriction; and a display portion mounted on the base frame.

[0008] In this solution, when the baffle is connected to the UPS casing to cover the internal space of the casing, the display assembly can be moved and the base frame of the display assembly can be snapped onto the baffle from the side of the baffle facing away from the internal space of the casing. In this way, the display assembly blocks the operation path of the baffle. If the UPS needs to be maintained, it is only necessary to apply force to the base frame of the display assembly to convert it from the snap-on state to the detached state, and then the display assembly can be removed to expose the baffle. The whole process is simple and easy to operate, and can be operated with one hand without the help of other auxiliary tools. The snap-on structure can be flexibly designed to provide a better feel and enhance the user's operating experience. This display assembly that can be easily disassembled and assembled also contributes to the integrated design of the UPS panel, because no additional detachable connecting parts, such as bolts, are required, and the decorative cover arranged to cover such parts is also eliminated. The internal accommodation space of the casing can be a space for accommodating batteries.

[0009] In some embodiments, the clamping portion includes: an arc-shaped embedded portion, suitable for elastically deforming and pressing into the clamping groove of the baffle; and a handle portion, connected to the embedded portion and having an operating end extending from the clamping groove.

[0010] In some embodiments, the base frame forms a limiting protrusion at a position spaced apart from the clamping portion, and the limiting protrusion is suitable for being inserted into the limiting groove of the baffle when the baffle covers the opening.

[0011] In some embodiments, the display assembly includes a pivot shaft mounted on the housing and extending along a first direction, and the base frame is connected to the pivot shaft and is rotatably disposed around the pivot shaft.

[0012] In some embodiments, one of the base and the display portion has an axis extending in a second direction angled to the first direction, and the other of the base and the display portion has a through hole for accommodating the axis, so that the display portion can rotate around the axis relative to the base.

[0013] In some embodiments, one of the base frame and the display portion has an arc-shaped slot extending around the axis, and the other of the base frame and the display portion has a protrusion insertable into and movable along the arc-shaped slot.

[0014] In some embodiments, the base frame has a catch offset from the axis, and the display portion has a catch opening to receive the catch, the catch being movable in the catch opening during rotation of the display portion around the axis.

[0015] In some embodiments, the base frame includes a first support and a second support each having a circular-arc wall, the display portion being mounted to the second support, wherein the circular-arc walls of the first and second supports are nested together, and the second support is rotatable relative to the first support around a central axis of the circular-arc walls extending in a third direction at an angle to the first direction.

[0016] In some embodiments, one of the circular-arc walls of the first and second supports is formed with a plurality of recesses spaced along the direction of the circular arc, and the other of the circular-arc walls of the first and second supports is formed with at least one ridge, wherein the at least one ridge selectively engages one corresponding recess during rotation.

[0017] According to another aspect of the present application, there is provided an uninterruptible power supply, comprising: a housing defining an internal receiving space and an opening communicating with the receiving space; a baffle removably connected to the housing and capable of covering the opening, wherein the baffle is formed with a clamping groove on a side facing away from the housing; and a display assembly as previously described, wherein a clamping portion of a base frame of the display assembly is capable of being clamped into the clamping groove of the baffle and restricted from being removed from the housing when the baffle covers the opening, and is further capable of being disengaged from the clamping groove and the restriction is removed.

[0018] In some embodiments, the uninterruptible power supply further comprises a panel removably connected to the housing and having an opening aligned with the display assembly, the display assembly being located between the panel and the baffle.

[0019] Some of the other features and advantages of the present application will become apparent from the specification, and from the claims, when they are read in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0020] Embodiments of the present application will now be described, by way of example only, with reference to the accompanying drawings:

[0021] Figure 1 is a schematic view of an uninterruptible power supply according to an embodiment of the present application;

[0022] Figure 2 is an exploded schematic diagram of an uninterruptible power supply according to an embodiment of the present utility model;

[0023] Figure 3 is a partial schematic diagram of an uninterruptible power supply according to an embodiment of the present invention, wherein the display assembly is removed to expose the baffle;

[0024] Figure 4 is a partial schematic diagram of an uninterruptible power supply according to an embodiment of the present utility model;

[0025] Figure 5 is a schematic diagram of a display assembly according to an embodiment of the present invention at one angle;

[0026] Figure 6 is a schematic diagram of a display assembly according to an embodiment of the present invention from another angle;

[0027] Figure 7 It is a schematic exploded view of a display assembly according to an embodiment of the present invention.

[0028] Description of reference numerals:

[0029] 1-uninterruptible power supply; 2-housing; 21-bayonet; 3-baffle; 31-connector; 32-limiting slot;

[0030] 33-card slot; 34-notch; 4-panel; 41-mouth; 42-clip; 5-display assembly; 6-

[0031] Mounting member; 61-mounting hole; 62-axis hole; 63-connecting member; 7-pivot shaft; 8-base frame; 8

[0032] 1-first bracket; 810-plate portion; 811-annular boss; 812-claw; 813-arc structure;

[0033] 814-ridge; 815-clamping portion; 816-embedded portion; 817-handle; 818-rib; 819-limit

[0034] Positioning protrusion; 82-second bracket; 821-side plate; 822-first slide; 823-second slide

[0035] Groove; 824-through hole; 825-connecting plate portion; 826-orifice; 827-recess; 83-third branch

[0036] Frame; 831-hook; 9-display unit; 91-bayonet; 92-axis; 93-protrusion DETAILED DESCRIPTION

[0037] Reference will now be made to the drawings to describe the illustrative embodiments of the display assembly for an uninterruptible power supply and the uninterruptible power supply in detail. While the drawings are presented to illustrate some embodiments of the present application, the drawings are not necessarily drawn to scale, and certain features can be exaggerated, removed, or partially sectioned to better illustrate and explain the present application. Some components in the drawings can be adjusted in position according to actual needs without affecting the technical effects. The phrase "in the drawings" or similar language appearing in the specification is not necessarily referring to all of the drawings or examples.

[0038] Some directional terms used to describe the drawings in the following, such as "in", "out", "above", "below" 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 the specification are basically in accordance with the conventional directions understood by those skilled in the art.

[0039] The terms "first", "the first", "second", "the second" and the like used in the present application do not indicate any order, number or importance in the present application, but are used to distinguish one component from other components.

[0040] Figures 1 to 4 An uninterruptible power supply 1 according to the present application is exemplarily shown, which can be configured as a tower UPS or a rack-mounted UPS as desired. The uninterruptible power supply 1 includes a housing 2 in which various functional devices are enclosed. The housing 2 is a three-dimensional body made of a strong material, which protects the devices. The housing 2 is provided with an input port accessible from the outside, so that the uninterruptible power supply 1 can be selectively connected to a main power source (e.g. a three-phase AC power source such as a commercial power supply) or a backup power source (e.g. a DC battery). The housing 2 is also provided with an output port accessible from the outside, so that a load can be connected to the uninterruptible power supply 1 at the output port. The uninterruptible power supply 1 generates an AC current for the load based on the current from the main power source or the backup power source.

[0041] The battery is housed in the interior space of the housing 2, and the housing 2 leaves an opening to the battery on its front side wall. During normal operation, the opening is covered by the shutter 3, which is removed only when maintenance of the UPS is required. The shutter 3 is connected to the housing 2 by removable connectors 31. Any suitable connectors 31 can be used to connect the shutter 3 and the housing 2, such as bolts or pins. Advantageously, the shutter 3 is secured to the housing 2 only at a first end near the middle of the front side wall of the housing 2 by the connectors 31, while the opposite second end is free of connectors and passes through the opening of the front side wall corresponding to the battery and rests on the inner surface of the front side wall. To this end, the front side wall of the housing 2 can be recessed at the location where the connectors 31 are installed, so that the first end of the shutter 3 falls into the recess. This ensures that the shutter 3 is installed in an orientation parallel to the front side wall of the housing 2.

[0042] The front side wall of the housing 2 is provided with a display assembly 5, which is movable relative to the housing 2. When the shutter 3 is connected to the housing 2, the display assembly 5 can be moved to engage with the shutter 3, thereby "locking" the shutter 3 by the display assembly 5. As long as the display assembly 5 is not disengaged from the shutter 3, the shutter 3 cannot be removed from the housing 2. When the display assembly 5 is engaged with the shutter 3, it is advantageous that the display assembly 5 further covers the connectors 31 between the shutter 3 and the housing 2, ensuring that the connectors 31 of the shutter 3 can only be accessed by an operator and the shutter 31 can only be removed from the housing 2 after the display assembly 5 is removed from the shutter 3.

[0043] A panel 4 is removably mounted to the housing 2 and covers the shutter 3 and a portion of the display assembly 5, to protect the front side of the housing 2 and provide an overall appearance. For ease of operation, the panel 4 can be formed with a resilient catch 42 at one or both opposite ends, and a corresponding catch opening 21 is formed on the housing 2. By inserting the catch 42 into the catch opening 21, simple connection of the panel 4 to the housing 2 is achieved. The panel 4 is formed with a mouth 41. When the UPS is assembled, the mouth 41 of the panel 4 is aligned with the display assembly 5, in particular with the display screen portion of the display assembly 5, for monitoring the operation of the UPS and operating the UPS. The panel 4 can also cover other portions of the display assembly 5, in particular the portion of the display assembly 5 connected to the housing 2 and the shutter 31. In addition to providing an overall appearance, this covering also isolates unsafe operation of the display assembly 5 and even the battery.

[0044] The structure and operation of the display assembly 5 will be described in detail below.

[0045] The display assembly 5 is mounted to the housing 2 and is movable relative to the housing 2. Referring to Fig. 1, the display assembly 5 is mounted to the front side wall of the housing 2 by a bracket 51. The bracket 51 is formed with a pair of parallel arms 52, each of which is provided with a hole 53. The bracket 51 is secured to the front side wall of the housing 2 by screws 54 inserted through the holes 53. The bracket 51 is formed with a pair of parallel arms 52, each of which is provided with a hole 53. The bracket 51 is secured to the front side wall of the housing 2 by screws 54 inserted through the holes 53. Figures 3 to 7In the illustrated embodiment, two mounting members 6 are respectively fixed to the front side wall of the housing 2 by detachable connecting members 63 such as bolts. To this end, each mounting member 6 has a mounting hole 61 for accommodating the connecting member 63. Each mounting member 6 also has an axial hole 62 extending along the direction z, and the axial holes 62 of the two mounting members 6 are aligned in the direction z. The two ends of the pivot shaft 7 are respectively inserted into the axial holes 62 of the two mounting members 6. The pivot shaft 7 serves as the mounting base of the display assembly 5, and its central axis extending along the direction z also serves as the pivot axis of the display assembly 5. Thereby, the display assembly 5 can be rotated around the pivot shaft 7 relative to the housing 2 to move closer to or away from the baffle 3.

[0046] The snap-in connection method between the display component 5 and the baffle 3 can be flexibly designed to provide a good hand feel and enhance the operating experience. In the embodiment shown, the baffle 3 is formed with a snap-in slot 33 on the side facing away from the internal space of the housing 2, and the display component 5 is provided with a snap-in portion 815 on the other side opposite to the pivot axis 7. The snap-in portion 815 can be inserted into the snap-in slot 33 by elastic deformation under the action of an external force. When the external force disappears, the elastic deformation can be eliminated so that the snap-in portion 815 returns to its original state and thus presses against the side wall of the snap-in slot 33. The elastic deformation can be achieved by the material of the snap-in portion 815, for example, the snap-in portion 815 is made of a material with a certain degree of elasticity. Alternatively, the elastic deformation can be achieved by the structure of the snap-in portion 815. Alternatively, the elastic deformation can be achieved by a combination of the structure and material of the snap-in portion.

[0047] Typically, the display portion 9 of the display assembly 5 (including the display screen, related functional components and the frame surrounding them) is supported by the base frame 8, so the clamping portion 815 can be provided on the base frame 8, and the relatively more robust base frame 8 completes the clamping action with the baffle 3.

[0048] In one embodiment, Figure 5 and Figure 6 As shown, the clamping portion 815 is composed of a bent embedded portion 816 and a handle 817 extending from the embedded portion 816. The embedded portion 816 includes two straight sections extending at an angle relative to each other and a curved transition section connecting the two straight sections. Under the action of an external force, the curved transition section can retract inward, and the two straight sections move closer to each other, achieving elastic deformation of the clamping portion 815. When the external force disappears, the curved transition section returns to its original position, and the two straight sections move away from each other, and the clamping portion 815 returns to its initial state. This self-restoring feature of the clamping portion 815 also provides a rebound force when it is removed from the retaining slot 33 of the baffle 3, facilitating one-handed operation.

[0049] The handle 817 is connected to the embedding part 816. When the embedding part 816 is abutted in the clamping groove 33 of the baffle 3, the handle 817 extends out of the clamping groove 33. The end of the handle 817 can be bent in a direction away from the baffle 3, thereby providing an operating force application site. In order to stabilize the clamping part 815 in the clamping groove 33 of the baffle 3, a convex rib 818 is formed on the side of the straight section of the handle 817 of the embedding part 816, which faces the side wall of the clamping groove 33, and a notch 34 is formed on the side wall of the clamping groove 33. When the embedding part 816 is abutted in the clamping groove 33, the convex rib 818 is pressed into the notch 34, further limiting the shaking of the clamping part 815 and the entire display assembly 5 relative to the baffle 3. The convex rib 818 can also play a role in structural reinforcement of the embedding part 816, preventing the embedding part 816 from breaking after experiencing repeated deformation-reset. The convex rib 818 can be designed in any suitable configuration, such as the two spaced apart and parallel convex ribs 818 shown in the figure, and two spaced apart notches 34 are formed in the clamping groove 33.

[0050] In addition to the clamping part 815 and the clamping groove 33, a positioning or limiting structure can also be provided between the display assembly 5 and the baffle 3. As shown in the figure, a limiting protrusion 819 can be provided on the side of the display assembly 5 facing the baffle 3, and a corresponding limiting groove 32 is provided on the baffle 3. When the display assembly 5 and the baffle 3 are buckled together, the limiting protrusion 819 is inserted into the limiting groove 32. The limiting protrusion 819 can be arranged at any suitable position of the display assembly 5, such as on the opposite sides of the clamping part 815. Figure 6

[0051] The above provides the display assembly 5 that can rotate around the pivot shaft 7 extending in the direction z. Those skilled in the art can conceive that the display assembly 5 can have other movement modes, such as arranging clamping parts 815 on opposite sides of the display assembly 5, one of which is clamped to the baffle 3 and the other is clamped to the shell 2, thereby replacing the pivot shaft 7. Alternatively, the display assembly 5 can move linearly along a track pre-set on the shell 2 to approach the baffle 3, and be locked to the baffle 3 by the clamping part 815, and be unlocked from the baffle 3 and move linearly away from the baffle 3 along the track.

[0052] When maintenance is needed, the battery can be disassembled as follows:

[0053] - Press the buckles 42 at both ends of the panel 4 to take the panel 4 off from the front side of the shell 2. At this time, the display assembly 5 is exposed.

[0054] - Press the clamping part 815 of the display assembly 5. Due to the rebounding property of the clamping part 815 itself, the display assembly 5 is bounced open and rotated around the pivot shaft 7, leaving the connecting piece 31 of the baffle 3.

[0055] - Remove the connecting piece 31 and take off the baffle 3. ​

[0056] - disassembling the battery.

[0057] - installing the baffle 3 and the connecting piece 31.

[0058] - pushing the display assembly 5 to rotate around the pivot shaft 7 until the clamping part 815 is clamped in the clamping groove 33 of the baffle 3.

[0059] - clamping the panel 4 back into the bayonet 21 of the housing 2.

[0060] The process of operating the display assembly 5 is simple, labor-saving and can be completed with one hand without the help of additional tools. The two mounting pieces 6 serving as the rotating base of the display assembly 5 are fixed by bolts, providing good stability and facilitating the fixing of the wire harness of the display assembly 5, avoiding the disconnection of the wire harness terminals from the display assembly due to the instability of the display assembly in extreme conditions. In addition, the overall size of the display assembly 5 can be further reduced. Through experiments, the overall size of the display assembly 5 can be reduced by at least 35% compared with the current display assembly. Since the display assembly 5 is designed with a clamping part connected to the baffle 3, the baffle 3 covering the battery opening of the housing 2 can be replaced by a plastic part, which greatly reduces the cost compared to the original metal part. The plastic part can also be installed to the housing with a convenient quick-release pin and other connecting pieces to achieve a screw-free design and greatly improve the disassembly and assembly efficiency and reduce the cost.

[0061] As mentioned earlier, the uninterruptible power supply 1 of the present scheme can be configured as a tower UPS or a rack-mounted UPS to adapt to different application scenarios. For this purpose, the display assembly 5 can be optimally designed to provide better adaptability and user experience. In one embodiment, the chassis 8 of the display assembly 5 can be split into a first bracket 81, a second bracket 82 and a third bracket 83, and each bracket can be designed to perform corresponding functions.

[0062] The first bracket 81, serving as the outermost support portion of the entire display assembly 5, includes a plate portion 810. One end of the plate portion 810 is sleeved onto the pivot shaft 7, while the other opposite end is mounted with a snap-on portion 815. A limiting protrusion 819 is provided on the surface of the plate portion 810 facing the baffle 3. An annular boss 811 is formed between the two ends of the plate portion 810, protruding away from the baffle 3. This boss is used to cooperate with the second bracket 82 to achieve adaptive conversion of the display assembly 5 when the uninterruptible power supply 1 switches between a tower UPS and a rack UPS. Specifically, the second bracket 82 includes two opposing side panels 821 and a connecting plate portion 825 connected between the two side panels 821, wherein the connecting plate portion 825 is formed with a circular opening 826. The circular opening 826 has a certain thickness, thereby forming an inner arc wall along the circumference. During assembly, the second bracket 82 is sleeved on the annular boss 811 of the first bracket 81 with the orifice 826, so that the outer arc wall of the annular boss 811 of the first bracket 82 is close to the inner arc wall of the orifice 826 of the second bracket 82. Thereby, the second bracket 82 can rotate around the central axis of the annular boss 811 with the display part 9, and the central axis of the annular boss 811 extends along another direction y that is angled with the direction z. In the illustrated embodiment, the direction y and the direction z are perpendicular to each other, wherein the direction z can be vertical and the direction y can be horizontal. In other words, the entire display assembly 5 can rotate around the pivot shaft 7 arranged along the direction z, and at the same time, in the display assembly 5, the second bracket 82 together with the display part 9 can rotate around the central axis of the annular boss 811 extending along the direction y ( Figure 5 The arrow indicates the rotation direction of the display unit 9. The rotation of the second bracket 82 together with the display unit 9 can meet the different display requirements of the uninterruptible power supply 1 in two usage scenarios: a tower UPS and a rack UPS.

[0063] An angle limiting structure can be set for the rotation of the second bracket 82 relative to the first bracket 81 to constrain the second bracket 82 to rotate within a specific angle. This angle limiting structure can be achieved by means of a concave-convex structure between the outer arc surface of the annular boss 811 of the first bracket 81 and the inner arc surface of the orifice 826 of the second bracket 82. Figure 7 As shown, a plurality of spaced ridges 814 can be formed on the outer arcuate wall of the annular boss 811, and a plurality of recesses 827 can be formed on the inner arcuate wall of the aperture 826. When the second bracket 82 rotates relative to the first bracket 81, once the ridge 814 falls into one of the recesses 827, the operator is informed that the second bracket 82 has been rotated to the correct position or to a certain angle. At the same time, given the small size of the ridge 814 and recess 827, even if they form a limited fit, a slight force can be applied to move the ridge 814 out of the recess 827, allowing the second bracket 82 to rotate relative to the first bracket 81 again.

[0064] The number and arrangement of the ridges 814 and the recesses 827 can be designed according to the desired limiting effect and angle restriction. For example, if it is desired that the second support 82 is rotated 90° each time relative to the first support 81, four ridges 814 can be arranged for the annular boss 811 according to a quarter of a circle, and four recesses 827 can be arranged for the aperture 816. Of course, the number of the ridges 814 here can also be only one, or less than the number of the recesses 827, as long as the single or each ridge 814 can be selectively dropped into one recess 817 when the second support 82 is rotated relative to the first support 81.

[0065] The arrangement positions of the recesses 827 and the ridges 814 here can be interchanged. That is, the recesses are arranged on the outer circular-arc wall of the annular boss 811, and the ridges are arranged on the inner circular-arc wall of the aperture 826.

[0066] In order to prevent the second support 82 from moving in the direction y when it is rotated relative to the first support 81, a displacement limiting structure can be arranged between the first support 81 and the second support 82. As shown in Figure 7 the displacement limiting structure can be a claw 812 formed on the annular boss 811. When the aperture 826 of the second support 82 is sleeved to the annular boss 811 of the first support 81, the end edge of the aperture 826 is embedded in the claw 812, limiting the displacement of the first support 81 in the second direction y. Here, the annular boss 811 is designed to be discontinuous in the circumferential direction for the consideration of convenient processing and forming. As shown in Figure 7 the annular boss 811 includes a plurality of claws 812 (three are shown in the figure) and a plurality of arc structures 813 (three are shown in the figure), which are arranged alternately along the circumferential direction of the annular boss 811, and the ridges 814 are formed on the outer circular-arc wall of the arc structures 813.

[0067] Although only the embodiment in which the annular boss 811 is formed in the first support 81 and the circular aperture 826 is formed in the second support 82 is shown in the figure, those skilled in the art will understand that the annular boss and the circular aperture can be appropriately modified to adapt to actual needs. As long as a circular-arc wall is formed in each of the first support 81 and the second support 82, and one circular-arc wall is sleeved to the other circular-arc wall, the rotation of the second support 82 relative to the first support 81 around the central axis of the circular-arc wall can be achieved.

[0068] As mentioned above, the second bracket 82 includes two side panel portions 821 located on opposite sides of the connecting plate portion 825. The display portion 9 is arranged between the two side panel portions 821 and supported by the two side panel portions 821. In order to meet the different viewing angle requirements of the user, the display portion 9 is configured to be flipped relative to the second bracket 82. This flipping can be achieved by means of a rotating shaft passing through the frame of the second bracket 82 and the display portion 9. In the embodiment shown, the display portion 9 forms shafts 92 on opposite sides, and the second bracket 82 forms through holes 824 for accommodating the shafts 92 on the two side panel portions 821. By inserting the shafts 92 into the corresponding through holes 824, the display portion 9 can be rotated relative to the second bracket 82 around the central axis of the shaft 92. In the embodiment shown, the central axis of the shaft 92 is along another direction x that is angled with the direction z and the direction y, respectively (see Figure 5 ) extends. In the illustrated embodiment, directions x, y, and z are three-dimensional directions that are perpendicular to each other. In other words, the display unit 9 in the uninterruptible power supply 1 can be rotated in three different dimensions to meet different functional requirements.

[0069] In order to limit the flip angle of the display unit 9 relative to the second bracket 82, an angle limiting structure can be provided between the display unit 9 and the second bracket 82. This angle limiting structure can be achieved by providing a sliding groove and a slider between the display unit 9 and the second bracket 82. Figure 7 As shown, a protrusion 93 can be provided on the side of the display unit 9, and a first slot 822 can be provided on the side plate portion 821 of the second bracket 82. The protrusion 93 is embedded in the first slot 822, and when the display unit 9 is rotated relative to the second bracket 82, the protrusion 93 can slide along the first slot 822. The first slot 822 includes multiple first-dimensional segments and multiple second-dimensional segments. The width or diameter of the first-dimensional segment can be equal to or slightly larger than the width or diameter of the protrusion 93, while the width or diameter of the second-dimensional segment can be slightly smaller than the width or diameter of the protrusion 93. These first-dimensional segments are arranged alternately along the first slot 822, so that when the display unit 9 is rotated relative to the second bracket 82, the protrusion 93 alternately falls into the first and second-dimensional segments. The length of the second-dimensional segment is appropriately designed, so that when the protrusion 93 moves from a first-dimensional segment at one end of the second-dimensional segment to another first-dimensional segment at the other end of the second-dimensional segment, the display unit 9 flips a predetermined angle. These first size sections can also serve as positioning points for the display portion 9 at different flipping angles. Unless a certain force is applied to the display portion 9 , the protrusion 93 can be stably placed in one of the first size sections.

[0070] In addition to the first chute 822, a second chute 823 can also be arranged adjacent to the first chute 822 and concentric with the first chute 822 to further limit the flipping path of the display part 9. The second chute 823 can be arranged on one side of the first chute 822 or on opposite sides of the first chute 822.

[0071] In addition, a snap structure can also be further provided between the chassis 8 and the display part 9 to limit the flipping of the display part 9 relative to the chassis 8. To this end, as shown in Figures 5 to 7 In addition to the first and second supports 81 and 82, a third support 83 is provided and is clamped between the display part 9 and the second support 82. The third support 83 is formed with a snap hook 831 between the two side plate portions 821 of the second support 82, and the hook portion of the snap hook 831 is bent back towards the first support 81. The display part 9 is formed with a snap opening 91 on the top surface, and the size of the snap opening 91 is greater than the size of the hook portion of the snap hook 831. When the display part 9 is reset, the hook portion of the snap hook 831 is clamped to the side edge of the snap opening 91 of the display part 9 close to the first support 81, but does not contact the opposite side edge of the snap opening 91. When the display part 9 rotates relative to the chassis 8 about the shaft 92, the snap hook 831 slides in the snap opening 91. The snap hook 831 can ensure that the reset display part 9 is kept stable on the chassis 8, and due to the limitation of the snap hook 831, the display part 9 in the reset state can only rotate in one direction about the shaft 92.

[0072] It should be understood that although the present specification is described in terms of various embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be combined to form other embodiments that those skilled in the art can understand.

[0073] The above description is only a specific embodiment of the present application, and is not intended to limit the scope of the present application. Any equivalent changes, modifications and combinations made by those skilled in the art without departing from the concept and principles of the present application shall fall within the scope of protection of the present application.

Claims

1. A display assembly for an uninterruptible power supply, the uninterruptible power supply comprising: a housing (2) defining an internal accommodation space and an opening communicating with the accommodation space; a shutter (3) detachably connected to the housing (2) and capable of covering the opening; characterized in that the display assembly comprises: a chassis (8) adapted to be movably mounted to the housing (2) and having a clamping portion (815) configured to be capable of clamping with the shutter (3) and limiting the shutter (3) from being detached from the housing (2) in a state where the shutter (3) covers the opening, and further configured to be capable of being separated from the shutter (3) and releasing the limitation; a display portion (9) mounted to the chassis (8).

2. The display assembly for an uninterruptible power supply of claim 1, wherein, the clamping portion (815) comprises: an arc-shaped bent embedding portion (816) adapted to be elastically deformedly inserted into a clamping groove (33) of the shutter (3); and a handle portion (817) connected to the embedding portion (816) and having an operating end extending out of the clamping groove (33).

3. The display assembly for an uninterruptible power supply of claim 1, wherein, the chassis (8) forms a limiting protrusion (819) at a position spaced apart from the clamping portion (815), the limiting protrusion (819) being adapted to be inserted into a limiting groove (32) of the shutter (3) in the state where the shutter (3) covers the opening.

4. The display assembly for an uninterruptible power supply of claim 1, wherein, the display assembly comprises a pivot shaft (7) mounted to the housing (2) and extending along a first direction, the chassis (8) being connected to the pivot shaft (7) and rotatably arranged about the pivot shaft (7).

5. The display assembly for an uninterruptible power supply of claim 4, wherein, one of the chassis (8) and the display portion (9) has a shaft (92) extending along a second direction at an angle to the first direction, and the other of the chassis (8) and the display portion (9) has a through hole (824) accommodating the shaft (92), so that the display portion (9) is capable of rotating relative to the chassis (8) about the shaft (92).

6. The display assembly for an uninterruptible power supply of claim 5, wherein, one of the chassis (8) and the display portion (9) has an arc-shaped sliding groove extending about the shaft (92), and the other of the chassis (8) and the display portion (9) has a protrusion capable of being inserted into and moving along the arc-shaped sliding groove.

7. The display assembly for an uninterruptible power supply of claim 5, wherein, the chassis (8) has a clamping hook (831) offset from the shaft (92), and the display portion (9) has a clamping opening (91) accommodating the clamping hook (831), the clamping hook (831) being capable of moving in the clamping opening (91) during rotation of the display portion (9) about the shaft (92).

8. The display assembly for an uninterruptible power supply of any of claims 4-7, wherein, the chassis (8) comprises a first support (81) and a second support (82) each having a circular-arc wall, the display portion (9) being mounted to the second support (82), wherein the circular-arc walls of the first support (81) and the second support (82) are sleeved together, and the second support (82) is capable of rotating relative to the first support (81) about a central axis of the circular-arc walls extending along a third direction at an angle to the first direction.

9. The display assembly for an uninterruptible power supply of claim 8, wherein, One of the circular-arc walls of the first bracket (81) and the circular-arc wall of the second bracket (82) is formed with a plurality of recesses (827) arranged at intervals along the direction of the circular arc, and the other of the circular-arc walls of the first bracket (81) and the second bracket (82) is formed with at least one ridge (814), wherein the at least one ridge (814) selectively engages in one corresponding recess (827) during rotation.

10. An uninterruptible power supply, characterized by Comprising: a housing (2) defining an internal accommodation space and an opening communicating with the accommodation space; a shutter (3) detachably connected to the housing (2) and capable of covering the opening, wherein the shutter (3) is formed with a clamping groove (33) on the side facing away from the housing (2); a display assembly (5) as claimed in any one of claims 1 to 9, wherein the clamping portion (815) of the chassis (8) of the display assembly (5) can be clamped into the clamping groove (33) of the shutter (3) and limited to be removed from the housing (2) when the shutter (3) covers the opening, and can be disengaged from the clamping groove (33) and the limitation is removed.

11. The uninterruptible power supply of claim 10, wherein, The uninterrupted power supply further comprises a panel (4) detachably connected to the housing (2) and having a mouth (41) aligned with the display assembly (5), the display assembly (5) being located between the panel (4) and the shutter (3).

Images