Locking device

Abstract

The invention provides a locking device which is arranged on an electric appliance unit, the electric appliance unit is provided with a first side plate and a second side plate which are opposite to each other, and the locking device is arranged at the front end of the electric appliance unit in an adjacent mode and comprises an elastic locking part and a protruding part. Wherein the elastic locking part is arranged on the first side plate, and when the electric appliance unit is arranged in one of the plurality of case accommodating seats along the first direction, the elastic locking part locks the electric appliance unit on the corresponding case accommodating seat and interferes with another electric appliance unit adjacent to the partition plate close to the first side plate; the front end, close to the electric appliance unit, of the protruding part is arranged on the elastic locking part and protrudes outwards from the surface of the elastic locking part in the second direction, the second direction is perpendicular to the first direction, and when another adjacent electric appliance unit is arranged in the first direction or moved out of the corresponding machine case containing base in the direction opposite to the first direction, the protruding part protrudes outwards from the surface of the elastic locking part. The protruding part drives the elastic locking part to move in the direction opposite to the second direction and allows the elastic locking part to be disengaged from another adjacent electric appliance unit.

Description

Technical Field

[0001] The present invention relates to the technical field of a locking device. Specifically, it particularly relates to a locking device applied to an electrical unit to solve the problem of space utilization of the electrical unit. Background Art

[0002] In current daily life, the application of many electronic devices requires a power transfer module to provide the required power. Taking the power supply unit of a server as an example, the power supply unit is usually fixed in a cabinet accommodation seat through a locking device. Since the locking device is mostly installed inside the housing of the power supply unit, it will occupy the internal space of the housing.

[0003] In the prior art, the locking device mainly includes an elastic plate and a buckle. The elastic plate is installed on the side plate of the housing, and the buckle is arranged perpendicular to the elastic plate, so that the pressing direction is perpendicular to the length direction of the elastic plate. Through pressing action, the elastic plate is bent and deformed, and the buckle is driven to move, so as to insert or remove the power supply unit into or out of the cabinet accommodation seat. Since the buckle needs to be pressed during the insertion and removal of the power supply unit, a certain movement space needs to be reserved in the width direction inside the housing of the power supply unit for the locking device to prevent interference between the locking device and other parts inside the housing of the power supply unit. However, this also results in a smaller available space in the width direction inside the housing of the power supply unit. In addition, since the locking between the power supply unit and the cabinet accommodation seat is achieved through the locking device, the setting of the locking device will also occupy the space of the cabinet accommodation seat and limit the width dimension of the power supply unit. For multiple cabinet accommodation seats, adjacent power supply units are separated by vertical partitions. However, since adjacent power supply units cannot interfere with each other, the thickness of the partition also occupies a certain width space, thereby affecting the overall space utilization.

[0004] On the other hand, the power supply units applied in servers are increasingly developing towards the direction of small size and high power, which makes the efficient utilization of the internal space of the power supply unit extremely critical.

[0005] Therefore, how to develop a locking device applied to an electrical unit to solve the problem of space utilization of the electrical unit is indeed a topic that the field urgently needs to face. Summary of the Invention

[0006] The object of the present invention is to provide a locking device applied to an electrical unit. The elastic plate, the buckle portion and the pressing plate of the locking device can be integrally formed by a metal sheet to form an elastic locking portion. The locking device is arranged at the front end of the casing of the electrical unit and is located on the first side plate. The buckle portion of the locking device protrudes outward from the elastic plate and penetrates through the first side plate. When the electrical unit is placed in one of a plurality of chassis accommodation seats arranged side by side, the elastic plate will maintain the buckle portion penetrating through the partition between the first side plate and the chassis accommodation seat, and further interfere with another adjacent electrical unit. Therefore, the thickness of the partition can be correspondingly reduced, so as to increase the space in the width direction of the electrical unit, which is beneficial to the placement of internal components and improves the overall space utilization rate of the electrical unit. It should be noted that when two identical electrical units are respectively locked to two adjacent ones of a plurality of chassis accommodation seats through the locking device of the present invention, the two electrical units are respectively attached to two opposite sides of the partition with the first side plate and the second side plate. Since the locking device is arranged on the first side plate, the buckle portion of the locking device on the electrical unit attached to the partition with the first side plate not only penetrates through the partition, but also engages with the buckle through groove on the second side plate of another electrical unit, so that the two electrical units are firmly locked to the chassis. In addition, in order to prevent the operator from being affected by the locking device of another adjacent electrical unit when inserting or removing a single electrical unit, a protrusion is further arranged at the front end of the locking device of the present invention near the pressing plate, which includes inner and outer pushing inclined surfaces, is opposite to the buckle portion of the elastic locking portion in space, and the protruding height of the protrusion is greater than the protruding height of the buckle portion. When the operator pushes or pulls a single electrical unit, the locking device on another adjacent electrical unit will act through the inner and outer pushing inclined surfaces of the protrusion, and at the same time drive the corresponding elastic locking portion to release the interference, so that the operating electrical unit can be smoothly inserted and removed. In other words, through the setting of the locking device of the present invention, the space in the width direction and the length direction of each electrical unit can be fully utilized to realize the locking of a plurality of electrical units to the chassis, and at the same time improve the space utilization rate of the electrical units. In addition, by using the insertion or removal stroke of the electrical unit to push against the protrusion of the locking device to generate a thrust, the self-pressing of the locking device on the adjacent side is realized, which is convenient for operation.

[0007] To achieve the aforementioned purpose, the present invention provides a locking device, which is arranged on an electrical unit, and the electrical unit has a first side plate and a second side plate opposite to each other, and is characterized in that the locking device is arranged adjacent to the front end of the electrical unit and includes an elastic locking portion and a protrusion, wherein the elastic locking portion is arranged on the first side plate, when the electrical unit is placed into one of a plurality of chassis accommodating seats along a first direction, wherein the plurality of chassis accommodating seats are arranged side by side, and a partition is provided between any two adjacent ones, the elastic locking portion locks the electrical unit on the chassis accommodating seat, and interferes with another electrical unit adjacent to the partition close to the first side plate, the protrusion is arranged on the elastic locking portion adjacent to the front end, and protrudes outward from the surface of the elastic locking portion along a second direction, and the second direction is perpendicular to the first direction, when another adjacent electrical unit is placed into the chassis accommodating seat along the first direction or moved out of the chassis accommodating seat opposite to the first direction, the protrusion drives the elastic locking portion to move in the second direction opposite to the second direction, and allows the elastic locking portion to eliminate interference with another adjacent electrical unit.

[0008] In one embodiment, the elastic locking portion further includes an elastic plate, a buckle portion, and a pressing plate. The elastic plate extends along the first side plate of the electrical unit, and the elastic plate has a first end and a second end opposite to each other and a first face and a second face opposite to each other, the first end is connected to the first side plate of the electrical unit, the second end extends outward from the front end, the first face is close to the first side plate along the second direction, and the second direction is perpendicular to the first direction. The buckle portion is arranged on the first face of the elastic plate, located between the first end and the second end, protruding along the second direction and allowing a through opening on the first side plate and the partition to pass through. The raised portion is arranged on the second end of the elastic plate, protruding from the first face along the second direction. The pressing plate is connected to the second end of the elastic plate, protruding out of the front end of the electrical unit, and arranged adjacent to the raised portion, allowing the elastic plate to be bent by force and drive the raised portion and the buckle portion to move in the opposite direction to the second direction.

[0009] In one embodiment, the electrical unit is one of a power supply unit (PSU), a capacitance backup unit (CBU) or a battery backup unit (BBU).

[0010] In one embodiment, when the electrical unit is locked in one of the plurality of chassis receiving seats, a rear end of the electrical unit is electrically connected to the corresponding chassis receiving seat, and the front end and the rear end are two opposite ends in the first direction.

[0011] In one embodiment, the electrical unit further includes a snap-fit ​​through slot disposed on the second side plate.

[0012] In one embodiment, two locking devices are respectively arranged on two electrical units to form the same first electrical unit and second electrical unit. The first electrical unit and the second electrical unit are respectively locked in two adjacent ones of a plurality of chassis accommodation seats. Wherein, the first side plate of the first electrical unit and the second side plate of the second electrical unit are respectively attached to two opposite sides of a partition plate. The buckle portion of the locking device on the first electrical unit penetrates through the partition plate and meshes with the buckle through slot of the second electrical unit, and the protruding portion of the locking device on the first electrical unit interferes with the front end of the second electrical unit in a first direction.

[0013] In one embodiment, the pressing plate of the locking device on the first electrical unit allows the elastic plate to be bent under force and drives the buckle portion and the protruding portion to displace in a direction opposite to a second direction, and allows the first electrical unit to disengage from the corresponding chassis accommodation seat in a direction opposite to the first direction.

[0014] In one embodiment, the protruding portion includes an inner pushing inclined surface, and the height relative to the first surface increases to a first protruding height in a direction opposite to the first direction.

[0015] In one embodiment, when the second electrical unit moves out of the corresponding chassis accommodation seat in a direction opposite to the first direction, the front end of the second electrical unit pushes against the inner pushing inclined surface of the protruding portion of the locking device on the first electrical unit, driving the buckle portion on the first electrical unit to disengage from the buckle through slot of the second electrical unit.

[0016] In one embodiment, the protruding portion further includes an outer pushing inclined surface, which is located between the inner pushing inclined surface and the pressing plate, and the height relative to the first surface decreases from the first protruding height in a direction opposite to the first direction.

[0017] In one embodiment, when the second electrical unit is inserted into the corresponding chassis accommodation seat in the first direction, the rear end of the second electrical unit pushes against the outer pushing inclined surface of the protruding portion of the locking device on the first electrical unit, driving the buckle portion on the first electrical unit to displace into the first side plate and the partition plate.

[0018] In one embodiment, the buckle portion has a second protruding height relative to the first surface of the elastic plate, and the range of the second protruding height is between 2 mm and 4 mm.

[0019] In one embodiment, the first protruding height is greater than the second protruding height.

[0020] In one embodiment, the elastic plate is fixed to the first side plate by a fixing member.

[0021] In one embodiment, the elastic plate, the buckle portion and the pressing plate are integrally formed by a metal sheet.

[0022] In one embodiment, the protruding portion includes a soft material, which is connected to the first surface of the elastic plate.

[0023] In one embodiment, the elastic plate further includes an offset section located between the first end and the fastening portion. The offset section is offset toward the second surface to form a groove, which is assembled and engaged with a gasket on the first side plate.

[0024] In one embodiment, the pressing plate further includes a pressing portion, which forms a step difference by offsetting in the direction from the first surface toward the second surface.

[0025] In one embodiment, when the pressing portion is stressed, it displaces in a direction opposite to the second direction, resists the elastic restoring force of the elastic plate, and drives the fastening portion to be received into the first side plate.

[0026] In one embodiment, the elastic plate further includes a bending portion, which is disposed adjacent to the first end and pre-bends the first surface so that when the first end is fixed to the first side plate, the first surface of the elastic plate abuts against the first side plate, and provides an elastic force to maintain the fastening portion penetrating the first side plate.

[0027] In one embodiment, the electrical unit further includes a fan module, which is disposed adjacent to the front end and the second side plate.

[0028] The beneficial effects of the present invention are as follows. Embodiments of the present invention provide a locking device applied to an electrical unit to solve the problem of space utilization of, for example, a power supply unit, a capacitor backup unit, or a battery backup unit in the server field. By providing the locking device of the present invention, the space in the width direction and the length direction of each electrical unit can be fully utilized, so as to realize the locking of multiple electrical units in the chassis, and at the same time improve the space utilization rate of the electrical unit. In addition, by using the insertion or removal stroke of the electrical unit to push against the protruding portion of the locking device to generate a thrust force, the self-pressing of the adjacent side locking device is further realized, which is convenient for operation. Description of the Drawings

[0029] The following detailed description of the present invention and the schematic diagrams of the embodiments are intended to enable those skilled in the art to more fully understand the above content, and are not intended to limit the present invention.

[0030] Figure 1 Schematically shows a three-dimensional structure diagram of an electrical unit locked to a chassis accommodation seat through a locking device in an embodiment of the present invention.

[0031] Figure 2 Schematically shows a three-dimensional structure diagram of an electrical unit combined with a locking device in an embodiment of the present invention.

[0032] Figure 3 Schematically shows a three-dimensional structure diagram of an electrical unit combined with a locking device from another perspective in an embodiment of the present invention.

[0033] Figure 4 Schematically shows an exploded view of the structure of the locking device corresponding to the internal components of the electrical unit in an embodiment of the present invention.

[0034] Figure 5 Schematically shows a bottom view of the locking device in an embodiment of the present invention.

[0035] Figure 6 Schematically shows a three-dimensional structure diagram of the locking device fixed to the first side plate of the electrical unit in an embodiment of the present invention.

[0036] Figure 7 Schematically shows a bottom view of the locking device fixed to the first side plate of the electrical unit in an embodiment of the present invention.

[0037] Figure 8 Schematically shows a schematic diagram of the first electrical unit and the second electrical unit respectively locked to two adjacent housing accommodation seats through the locking device in an embodiment of the present invention.

[0038] Figure 9 Schematically shows a schematic diagram of the second electrical unit being inserted into or removed from the corresponding housing accommodation seat relative to the first electrical unit in an embodiment of the present invention. Detailed implementation manner

[0039] Some exemplary embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various variations in different ways, all of which do not depart from the scope of the present invention, and the descriptions and drawings therein are for illustrative purposes in nature and not for limiting the present invention. For example, if the following content of the present disclosure describes a first feature being disposed on or above a second feature, it means that it includes embodiments in which the above-mentioned first feature and the above-mentioned second feature are in direct contact, and also includes embodiments in which additional features can be disposed between the above-mentioned first feature and the above-mentioned second feature, such that the above-mentioned first feature and the above-mentioned second feature may not be in direct contact. Additionally, repeated reference symbols and / or labels may be used in different embodiments of the present disclosure. These repetitions are for the purpose of simplification and clarity and are not used to limit the relationship between each embodiment and / or the described appearance structure. Furthermore, for the convenience of describing the relationship between a component or feature part in the drawings and another (plural) component or (plural) feature part, spatial relative terms may be used, such as "front", "rear", "left", "right", "top", "bottom" and similar terms. Except for the orientations shown in the drawings, the spatial relative terms are used to cover different orientations of the device during use or operation. The device can also be positioned otherwise (e.g., rotated 90 degrees or in other orientations), and the descriptions of the spatial relative terms used are interpreted accordingly. In addition, when a component is referred to as being "connected to" or "coupled to" another component, it can be directly connected to or coupled to the other component, or intervening components may exist. Although the numerical ranges and parameters of the broad scope of the present disclosure are approximate values, the numerical values are stated as precisely as possible in specific examples. Additionally, it can be understood that although terms such as "first", "second", etc. may be used in the claims to describe different components, these components should not be limited by these terms, and in the embodiments, these components described correspondingly are represented by different component symbols. These terms are used to distinguish different components. For example: The first component can be referred to as the second component, and similarly, the second component can also be referred to as the first component without departing from the scope of the embodiments. The term "and / or" used in this way includes any or all combinations of one or more of the related listed items. Except in operating / work examples or unless explicitly specified, all numerical ranges, amounts, values, and percentages (such as those percentages of angles, time durations, temperatures, operating conditions, quantity ratios, and the like) disclosed herein should be understood to be modified by the term "about" or "substantially" in all embodiments. Accordingly, unless otherwise indicated, the numerical parameters stated in the present disclosure and the appended claims are approximate values that can vary as needed. For example, each numerical parameter should be interpreted at least in accordance with the significant digits of the number and by applying ordinary rounding principles. Ranges can be expressed in this document as from one endpoint to the other endpoint or between two endpoints. All ranges disclosed herein include the endpoints unless otherwise specified.

[0040] Figure 1 Schematic three-dimensional structure diagram showing that the electrical unit in an embodiment of the present invention is locked to the chassis accommodation seat through a locking device. Figure 2 Schematic three-dimensional structure diagram showing the combination of the electrical unit and the locking device in an embodiment of the present invention. Figure 3 Schematic three-dimensional structure diagram showing the combination of the electrical unit and the locking device from another perspective in an embodiment of the present invention. Figure 4 Schematic exploded view of the structure of the locking device corresponding to the internal components of the electrical unit in an embodiment of the present invention. Figure 5 Schematic bottom view of the locking device in an embodiment of the present invention. Figure 6 Schematic three-dimensional structure diagram showing the locking device fixed to the first side plate of the electrical unit in an embodiment of the present invention. Figure 7A bottom view schematically showing the locking device fixed to the first side plate of the electrical unit in an embodiment of the present invention. The present invention provides a locking device 2 which is disposed on the electrical units 1, 1a, 1b. The electrical units 1, 1a, 1b are, for example, one of a power supply unit (PSU), a capacitance backup unit (CBU), or a battery backup unit (BBU). After the locking device 2 is disposed on the electrical units 1, 1a, 1b, it has the same structure. Any one of the electrical units 1, 1a, 1b can be inserted into one of the plurality of chassis accommodation seats 90 of the chassis 9 along the first direction (i.e., the reverse Y-axis direction). In this embodiment, the plurality of chassis accommodation seats 90 are arranged side by side along the X-axis direction, and there is a partition 91 between any two adjacent chassis accommodation seats 90. In addition to being arranged along the X-axis, the chassis accommodation seats 90 can also be stacked along the Z-axis direction to form a chassis with multiple accommodation spaces. It should be noted that after the locking device 2 is disposed on the electrical units 1, 1a, 1b, it has the same structure. The relationship of the locking device 2 is described below with the electrical unit 1, which does not limit the present invention. In this embodiment, the electrical unit 1 has a first side plate 11 and a second side plate 12 opposite to each other. The locking device 2 is, for example, disposed on the first side plate 11 and adjacent to the front end 13 of the electrical unit 1. When the electrical unit 1 is locked to one of the plurality of chassis accommodation seats 90 of the chassis 9 through the locking device 2, a rear end 14 of the electrical unit 1 is electrically connected to the corresponding chassis accommodation seat 90, and the front end 13 and the rear end 14 are two opposite ends in the first direction (i.e., the reverse Y-axis direction). In this embodiment, the locking device 2 at least includes an elastic locking portion and a protruding portion 23, which are arranged in sequence along the first direction. The elastic locking portion is integrally formed by an elastic plate 21, a buckle portion 22, and a pressing plate 24. When the electrical units 1, 1a, 1b are accommodated in the chassis accommodation seats 90, the elastic locking portion locks the electrical units 1, 1a, 1b to the chassis accommodation seats 90 and interferes with another electrical unit adjacent to the partition 91 close to the first side plate 11. For example, when the electrical units 1a, 1b are both placed in the corresponding chassis accommodation seats 90, the elastic locking portion of the electrical unit 1a will interfere with the electrical unit 1b. In this embodiment, the elastic plate 21 extends along the first side plate 11 of the electrical unit 1 and is parallel to the first direction (i.e., the reverse Y-axis direction). The elastic plate 21 has a first end 211 and a second end 212 opposite to each other in the first direction (i.e., the reverse Y-axis direction), and a first surface 213 and a second surface 214 opposite to each other in the second direction (i.e., the X-axis direction), and the second direction is perpendicular to the first direction. In this embodiment, the first end 211 of the elastic plate 21 is connected to the inner wall surface of the first side plate 11 of the electrical unit 1, the second end 212 extends outward along the Y-axis from the front end 13 of the electrical unit 1, and the first surface 213 of the elastic plate 21 is close to the inner wall surface of the first side plate 11.In this embodiment, the buckle portion 22 is disposed on the first surface 213 of the elastic plate 21, between the first end 211 and the second end 212, protruding along the second direction (i.e., the X-axis direction) and allowing the through slot 110 to penetrate through the first side plate 11. Furthermore, the protruding portion 23 is disposed at the second end 212 of the elastic plate 21, protruding from the first surface 211 of the elastic plate 21 along the second direction (i.e., the X-axis direction), and is spatially opposite to the buckle portion 22 of the elastic locking portion. In this embodiment, when any one of the electrical units 1, 1a, 1b is received in the chassis receiving seat 90, the elastic plate 21 can maintain the buckle portion 22 penetrating through the first side plate 11 and a through hole 92 on the partition plate 91, and the buckle portion 22 of the elastic locking portion locks the electrical units 1, 1a, 1b to the chassis receiving seat 90, and maintains the buckle portion 22 of the elastic locking portion and the protruding portion 23 to interfere with another electrical unit adjacent to the partition plate 91 in the view in the first direction (i.e., the reverse Y-axis direction). In this embodiment, the pressing plate 24 is connected to the second end 212 of the elastic plate 21, protrudes from the front end 13 of the electrical unit 1 through the window 130 on the front end 13, is disposed adjacent to the protruding portion 23, and allows the elastic plate 21 to be bent by force and drive the buckle portion 22 and the protruding portion 23 to displace in the direction opposite to the second direction, i.e., the reverse X-axis direction. On the other hand, since the protruding portion 23 is disposed on the elastic plate 21 of the elastic locking portion along the second direction (i.e., the X-axis direction) and is close to the front end 13. When the protruding portion 23 is acted on by a force opposite to the second direction, the protruding portion 23 allows the elastic locking portion to displace in the direction opposite to the second direction, and allows the buckle portion 22 of the elastic locking portion to be disengaged from the interference with another adjacent electrical unit. For the convenience of description, some structures of the front end 13 can be omitted, such as. Figure 4 and Figure 6 , without limiting the present invention. When the buckle portion 22 and the protruding portion 23 displace in the direction opposite to the second direction and are disengaged from the interference with the partition plate 91, the electrical unit 1 can be allowed to disengage from the corresponding chassis receiving seat 90 along the direction opposite to the first direction, i.e., along the Y-axis direction.

[0041] In this embodiment, the elastic plate 21, the buckle portion 22, and the pressing plate 24 of the locking device 2 can be integrally formed by stamping or bending a metal sheet, for example, to form a single structural member, i.e., the elastic locking portion. The first end 211 of the elastic plate 21 can be fixed to the inner wall surface of the first side plate 11 by a fixing member such as a rivet (not shown in the figure), so that the first surface 213 of the elastic plate 21 is attached to the inner wall surface of the first side plate 11. The protruding portion 23 can be a bump made of a soft material such as plastic or rubber, and is connected to the first surface 213 of the elastic plate 21 by snap connection, threaded connection, or hot melting to avoid scratching the casing. Of course, in other embodiments, the protruding portion 23 can also be integrally formed with the elastic plate 21, the buckle portion 22, and the pressing plate 24 by stamping or bending a metal sheet, and the present invention is not limited thereto.

[0042] In this embodiment, the elastic plate 21 further includes an offset section 215 located between the first end 211 and the buckle portion 22 of the elastic plate 21. The offset section 25 is offset toward the second surface 214 (i.e., in the reverse X-axis direction) to form a groove, which is assembled and engaged with a gasket 15 on the first side plate 11. In addition to the gasket 15 on the first side plate 11, similar gaskets are also provided on the top plate, bottom plate, and the other side plate of the electrical unit 1 as EMI gaskets (EMI Gaskets) for connecting with the inner wall of the chassis accommodation seat 90 when the electrical unit 1 is inserted into or removed from the chassis accommodation seat 90. Through the setting of the EMI gasket, the electromagnetic interference generated by the internal devices of the power supply unit 1 can be effectively limited within the power supply unit 1, while preventing external electromagnetic interference from entering the power supply unit 1, ensuring the normal operation of the power supply unit 1 itself and the electromagnetic compatibility of the surrounding electronic devices. Of course, the present invention is not limited thereto. In this embodiment, the pressing plate 24 further includes a pressing portion 241, which is offset in the direction from the first surface 213 to the second surface 214 of the elastic plate 21 (i.e., in the reverse X-axis direction) to form a step. When the pressing portion 241 is stressed and displaced in the opposite direction to the second direction, it resists the elastic restoring force of the elastic plate 21 and drives the buckle portion 22 to be received into the first side plate 11, thereby releasing the interference between the buckle portion 22 and the partition 91 of the chassis accommodation seat 90.

[0043] It should be noted that, in this embodiment, the elastic plate 21 further includes a bending portion 216, which is disposed adjacent to the first end 211 of the elastic plate 21. By pre-bending, a bending angle A is formed on the first surface 213. When the first surface 213 at the first end 211 is fixed to the inner wall surface of the first side plate 11 through, for example, rivets or other fixing members, the first surface 213 at other places of the elastic plate 21 also abuts against the inner wall surface of the first side plate 11, thereby providing an elastic force to maintain the buckle portion 22 of the locking device 2 passing through the first side plate 11 of the electrical unit 1. When the electrical unit 1 is inserted into one of a plurality of chassis accommodation seats 90 arranged side by side, the elastic plate 21 of the locking device 2 will maintain the buckle portion 22 passing through the partition 91 between the first side plate 11 and the chassis accommodation seat 90, further interfering with an adjacent another electrical unit. The thickness of the partition 91 can be correspondingly reduced, so as to increase the space in the width direction of the electrical unit 1, realize the installation of a plurality of electrical units 1 in the chassis 9, and at the same time solve the problem of space utilization of the electrical unit 1. For example, in this embodiment, the electrical unit 1 may include a fan module 16 and a handle 17, and the fan module 16 and the handle 17 may be adjacent to the front end 13 and the second side plate 12. Through the setting of the locking device 2 of the present invention, the space in the width direction and the length direction of each electrical unit 1 can be fully utilized, the locking of a plurality of electrical units 1 in the chassis 9 can be realized, and at the same time the space utilization rate of the electrical unit 1 can be improved. Of course, the present invention is not limited thereto.

[0044] On the other hand, when two identical electrical units 1 are respectively locked to two adjacent ones of a plurality of chassis accommodating seats by the locking device 2 of the present invention, the two electrical units 1 will respectively attach the first side plate 11 and the second side plate 12 to two opposite sides of the partition 91. In addition to the through slot 110 on the first side plate 11, the electrical unit 1 further includes a snap through slot 120 (as Figure 3 shown), which is provided on the second side plate 12 and is configured to engage with the snap portion 22 on another electrical unit 1. In this embodiment, two locking devices 2 are respectively provided on two electrical units 1 to form an identical first electrical unit 1a and a second electrical unit 1b. Figure 8 Schematically shows a schematic diagram of the first electrical unit and the second electrical unit in an embodiment of the present invention being respectively locked to two adjacent chassis accommodating seats by the locking device. Figure 9 Schematically shows a schematic diagram of the second electrical unit being inserted into or removed from the corresponding chassis accommodating seat relative to the first electrical unit. Of course, the first electrical unit 1a and the second electrical unit 1b have the same external structure and can be alternately installed and used. In this embodiment, the application of two adjacent chassis accommodating seats is described by taking the first electrical unit 1a and the second electrical unit 1b as examples, which does not limit the present invention and is hereby explained first. Refer to Figures 1 to 9 . In this embodiment, the first electrical unit 1a and the second electrical unit 1b are respectively locked to two adjacent ones of a plurality of chassis accommodating seats 90. The first electrical unit 1a is located on the right side, for example, and the second electrical unit 1b is located on the left side, for example. The first side plate 11 of the first electrical unit 1a and the second side plate 12 of the second electrical unit 1b are respectively attached to two opposite sides of the partition 91. Since the locking device 2 is provided on the first side plate 11, the snap portion 22 of the locking device 2 on the first electrical unit 1a penetrates outside the through opening 92 on the partition 91 and further engages with the snap through slot 120 on the second side plate 12 of the second electrical unit 1b, so that the first electrical unit 1a and the second electrical unit 1b are firmly locked to the chassis 9. In addition, the protrusion 23 of the locking device 2 on the first electrical unit 1a interferes with the front end 13 of the second electrical unit 1b in the first direction (i.e., the reverse Y-axis direction).

[0045] In this embodiment, the pressing plate 24 of the locking device 2 on the first electrical unit 1a allows the force to bend the elastic plate 21 and drives the snap portion 22 and the protrusion 23 to displace in a direction opposite to the second direction. When the snap portion 22 disengages from the through opening 92 of the partition 91, the first electrical unit 1a can be detached from the corresponding chassis accommodating seat 90 along the opposite direction of the first direction. On the other hand, the installation and detachment operations of the second electrical unit 1b can also be achieved only by operating the locking device 2 on the second electrical unit 1b. The following further explains.

[0046] In this embodiment, to prevent the operator from being affected by the protruding portion 23 of the locking device 2 on the first electrical unit 1a when inserting or removing the second electrical unit 1b, the protruding portion 23 of each locking device 2 further includes an inner pushing inclined surface 231 and an outer pushing inclined surface 232. The inner pushing inclined surface 231 increases the height relative to the first surface 213 in the opposite direction of the first direction (i.e., the Y-axis direction) to a first protruding height D1. In addition, the outer pushing inclined surface 232 is connected to the inner pushing inclined surface 231, is located between the inner pushing inclined surface 231 and the pressing plate 24, and decreases the height relative to the first surface 231 in the opposite direction of the first direction (i.e., the Y-axis direction) from the first protruding height D1. When the operator moves the second electrical unit 1b out of the housing accommodation seat 90 along the Y-axis direction, the locking device 2 on the adjacent first electrical unit 1a will release the interference through the action of the inner pushing inclined surface 231 of the protruding portion 23, enabling the operated second electrical unit 1b to be smoothly removed. In other words, when the second electrical unit 1b is removed from the corresponding chassis accommodation seat 90 in the opposite direction of the first direction, the front end 13 of the second electrical unit 1b pushes against the inner pushing inclined surface 231 of the protruding portion 23 of the locking device 2 on the first electrical unit 1a, driving the engaging portion 22 on the first electrical unit 1a to disengage from the engaging through slot 120 of the second electrical unit 1b. In addition, when the operator inserts the second electrical unit 1b into the housing accommodation seat 90 along the first direction (i.e., the reverse Y-axis direction), the locking device 2 on the adjacent first electrical unit 1a will release the interference through the action of the outer pushing inclined surface 232 of the protruding portion 23, enabling the operated second electrical unit 1b to be smoothly inserted. In other words, when the second electrical unit 1b is inserted into the corresponding chassis accommodation seat 90 in the first direction (i.e., the reverse Y-axis direction), the rear end 14 of the second electrical unit 1b (see Figure 2 ) can push against the outer pushing inclined surface 232 of the protruding portion 23 of the locking device 2 on the first electrical unit 1a, driving the engaging portion 22 on the first electrical unit 1a to displace into the first side plate 11 and the partition 91. When the second electrical unit 1b is completely inserted into the housing accommodation seat 90, the protruding portion 23 of the locking device 2 on the first electrical unit 1a no longer interferes with the second electrical unit 1b, and then the engaging portion 22 of the locking device 2 on the first electrical unit 1a is allowed to penetrate through the through opening 92 on the partition 91 and engage with the engaging through slot 120 of the second side plate 12 of the second electrical unit 1b, firmly locking the first electrical unit 1a and the second electrical unit 1b in the chassis 9. In this embodiment, the engaging portion 22 of each locking device 2 has a second protruding height D2 relative to the first surface 213 of the elastic plate 21, and the range of the second protruding height D2 is between 2 mm and 4 mm. Through the design that the first protruding height D1 is greater than the second protruding height D2, the electrical unit 1 can be used to push against the protruding portion 23 of the locking device 2 during the insertion or removal stroke to generate a thrust, thereby realizing the self-pressing of the adjacent locking device 2, which is convenient for operation. Of course, the present invention is not limited thereto and will not be elaborated further.

[0047] In summary, the present invention provides a locking device for an electrical unit. The elastic plate, buckle portion and pressing plate of the locking device can be integrally formed with metal sheets to form an elastic locking portion. The locking device is arranged at the front end of the casing of the electrical unit, located on the first side plate. The buckle portion of the locking device protrudes outward from the elastic plate and penetrates the first side plate. When the electrical unit is placed in one of a plurality of chassis accommodating seats arranged side by side, the elastic plate will maintain the buckle portion to penetrate the partition between the first side plate and the chassis accommodating seat, and further interfere with another adjacent electrical unit, so the thickness of the partition can be reduced accordingly, thereby increasing the space in the width direction of the electrical unit, facilitating the placement of internal components, and improving the overall space utilization of the electrical unit. It is worth noting that when two identical electrical units are respectively locked to two neighbors of a plurality of chassis accommodating seats by the locking device of the present invention, the two electrical units are respectively attached to the opposite sides of the partition with the first side plate and the second side plate. Since the locking device is arranged on the first side plate, the buckle part of the locking device on the electrical unit with the first side plate attached to the partition not only penetrates the partition, but also engages with the buckle through groove of the second side plate of the other electrical unit, so that the two electrical units are firmly locked to the chassis. In addition, in order to prevent the operator from being affected by the locking device of the electrical unit on the other adjacent side when plugging and unplugging a single electrical unit, the locking device of the present invention is further provided with a protrusion at the front end of the adjacent pressing plate, including an inner and outer push-against inclined surface, a buckle part of the elastic locking part relative to the space, and the protruding height of the protrusion is greater than the protruding height of the buckle part. When the operator pushes and pulls a single electrical unit, the locking device on the other electrical unit on the adjacent side will act through the inner and outer push-against inclined surface of the protrusion, and at the same time drive the corresponding elastic locking part to remove the interference, so that the operated electrical unit can be plugged and unplugged smoothly. In other words, through the arrangement of the locking device of the present invention, the space in the width direction and the length direction of each electrical unit can be fully utilized to achieve the locking of multiple electrical units in the chassis, and at the same time improve the space utilization rate of the electrical units. In addition, the thrust is generated by pushing the protrusion of the locking device against the electrical unit during the insertion or removal stroke, and the locking device on the adjacent side is pressed automatically, which is convenient for operation.

[0048] The present invention can be modified in various ways by those skilled in the art, but all of them are within the protection of the appended claims.

Claims

1. A locking device is provided on an electrical unit which has a first side plate and a second side plate opposite to each other, and is characterized in that, The locking device is disposed adjacent to a front end of the electrical unit and comprises: an elastic locking portion, disposed on the first side plate, when the electrical unit is placed into one of a plurality of chassis accommodating seats along a first direction, wherein the plurality of chassis accommodating seats are arranged side by side with a partition between any two adjacent ones, the elastic locking portion locks the electrical unit on the chassis accommodating seat and interferes with another electrical unit adjacent to the partition close to the first side plate; A protrusion is arranged on the elastic locking portion adjacent to the front end, and protrudes outward from the surface of the elastic locking portion along a second direction, and the second direction is perpendicular to the first direction. When the adjacent other electrical unit is placed into the corresponding chassis accommodating seat along the first direction or moved out of the corresponding chassis accommodating seat opposite to the first direction, the protrusion drives the elastic locking portion to move in the opposite direction to the second direction, and allows the elastic locking portion to eliminate interference with the adjacent other electrical unit.

2. The locking device as claimed in claim 1, wherein the elastic locking portion comprises: an elastic plate extending along the first side plate of the electrical unit, and the elastic plate having a first end and a second end opposite to each other and a first surface and a second surface opposite to each other, the first end being connected to the first side plate of the electrical unit, the second end extending outward from the front end, and the first surface being close to the first side plate; a buckle portion, disposed on the first surface of the elastic plate, located between the first end and the second end, protruding along a second direction and allowing to penetrate through a through hole on the first side plate and the partition plate; wherein the protrusion is disposed on the second end of the elastic plate, protruding from the first surface along the second direction; and A pressing plate is connected to the second end of the elastic plate, protrudes out of the front end of the electrical unit, and is arranged adjacent to the protruding portion, allowing the elastic plate to be bent under force and drive the protruding portion and the buckle portion to move in the opposite direction to the second direction. 3 . The locking device as claimed in claim 1 , wherein the electrical unit comprises one of a power supply unit, a capacitor backup unit or a battery backup unit.

4. The locking device as described in claim 1, wherein when the electrical unit is locked in one of the multiple chassis accommodating seats, a rear end of the electrical unit is electrically connected to the corresponding chassis accommodating seat, and the front end and the rear end are two opposite ends in the first direction.

5. The locking device as claimed in claim 2, wherein the electrical unit further comprises a snap-fit ​​through slot disposed on the second side plate.

6. A locking device as described in claim 5, wherein two of the locking devices are respectively arranged on the two electrical units to form an identical first electrical unit and a second electrical unit, and the first electrical unit and the second electrical unit are respectively locked to two adjacent ones of the multiple chassis accommodating seats, wherein the first side panel of the first electrical unit and the second side panel of the second electrical unit are respectively attached to two opposite sides of the partition, the snap portion of the locking device on the first electrical unit passes through the partition and engages with the snap groove of the second electrical unit, and the protrusion of the locking device on the first electrical unit interferes with the front end of the second electrical unit in the first direction.

7. The locking device according to claim 6, wherein the pressing plate of the locking device on the first electrical unit allows the elastic plate to be bent under force and drives the buckle portion and the protrusion portion to displace in a direction opposite to the second direction, and allows the first electrical unit to disengage from the corresponding chassis accommodating seat in the opposite direction of the first direction.

8. The locking device according to claim 6, wherein the protrusion portion includes an inner pushing inclined surface, and the height relative to the first surface is increased to a first protruding height in the opposite direction of the first direction.

9. The locking device according to claim 8, wherein when the second electrical unit is moved out of the corresponding chassis accommodating seat in the opposite direction of the first direction, the front end of the second electrical unit pushes against the inner pushing inclined surface of the protrusion portion of the locking device on the first electrical unit, driving the buckle portion on the first electrical unit to disengage from the buckle through groove of the second electrical unit.

10. The locking device according to claim 8, wherein the protrusion portion further includes an outer pushing inclined surface, which is located between the inner pushing inclined surface and the pressing plate, and the height relative to the first surface decreases from the first protruding height in the opposite direction of the first direction.

11. The locking device according to claim 10, wherein when the second electrical unit is inserted into the corresponding chassis accommodating seat in the first direction, a rear end of the second electrical unit pushes against the outer pushing inclined surface of the protrusion portion of the locking device on the first electrical unit, driving the buckle portion on the first electrical unit to displace into the first side plate and the partition.

12. The locking device according to claim 8, wherein the buckle portion has a second protruding height relative to the first surface of the elastic plate, and the range of the second protruding height is between 2 mm and 4 mm.

13. The locking device according to claim 12, wherein the first protruding height is greater than the second protruding height.

14. The locking device according to claim 2, wherein the elastic plate is fixed to the first side plate by a fixing member.

15. The locking device according to claim 2, wherein the elastic plate, the buckle portion and the pressing plate are integrally formed by a metal sheet.

16. The locking device according to claim 2, wherein the protrusion portion includes a soft material connected to the first surface of the elastic plate.

17. The locking device according to claim 2, wherein the elastic plate further includes an offset section located between the first end and the buckle portion, and the offset section is offset toward the second surface to form a groove, which is assembled and engaged with a gasket on the first side plate.

18. The locking device according to claim 2, wherein the pressing plate further includes a pressing portion, which forms a step difference by offsetting from the first surface toward the second surface.

19. The locking device according to claim 18, wherein the pressing portion is displaced in a direction opposite to the second direction under force, resists the elastic restoring force of the elastic plate and drives the buckle portion to be received into the first side plate.

20. The locking device according to claim 2, wherein the elastic plate further includes a bent portion disposed adjacent to the first end, and the first surface is pre-bent so that when the first end is fixed to the first side plate, the first surface of the elastic plate abuts against the first side plate, and an elastic force is provided to maintain the engaging portion penetrating through the first side plate.

21. The locking device according to claim 1, wherein the electrical unit further includes a fan module, and the fan module is disposed adjacent to the front end and the second side plate.

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