阅读说明：本技术 供电分配单元及数据中心的机柜 (Power supply distribution unit and data center cabinet ) 是由 李升� 陈国峰 符庆明 李永伟 于 2020-09-24 设计创作，主要内容包括：本公开提供了一种供电分配单元及数据中心的机柜。上述供电分配单元包括：供电单元主体；位于供电单元主体的内部的T组内部传输线,T≥2且T为正整数；与T组内部传输线连接的输入线以及夹子输出组件。上述输入线用于接入电源,以给T组内部传输线中的各组内部传输线供电。上述夹子输出组件包括：夹子,从夹子延伸出的输出线,以及设置于输出线末端的接口。上述夹子用于夹住T组内部传输线中的一组或多组以实现电性接触。上述接口用于接入用电器,以给用电器供电。可以通过更换不同接口类型的夹子输出组件以及变化夹子输出组件的数量来满足各种用电需求,配置灵活且方便。(The present disclosure provides a cabinet of a power distribution unit and a data center. The above power supply distribution unit includes: a power supply unit main body; t groups of internal transmission lines are positioned inside the power supply unit main body, T is more than or equal to 2, and T is a positive integer; an input line connected to the T-set internal transmission line and a clip output assembly. The input line is used for accessing a power supply to supply power to each internal transmission line in the T groups of internal transmission lines. The clip output assembly includes: the clip, the output line that extends from the clip to and set up in the terminal interface of output line. The clips are used for clamping one or more groups of the T groups of internal transmission lines to realize electrical contact. The interface is used for being connected into an electrical appliance to supply power to the electrical appliance. Can satisfy various power demands through the clip output assembly of changing different interface types and the quantity that changes clip output assembly, the configuration is nimble and convenient.)

1. A power distribution unit comprising:

a power supply unit main body;

t groups of internal transmission lines, T is more than or equal to 2 and is a positive integer, and the internal transmission lines are positioned inside the power supply unit main body;

the input line is connected with the T groups of internal transmission lines and is used for accessing a power supply to supply power to each group of internal transmission lines in the T groups of internal transmission lines; and

a clip output assembly, the clip output assembly comprising: the clamp is used for clamping one or more groups of the T groups of internal transmission lines to realize electrical contact; an output cord extending from the clip; and the interface is arranged at the tail end of the output line and used for being connected into an electrical appliance so as to supply power to the electrical appliance.

2. A power distribution unit as claimed in claim 1, wherein the clip comprises:

a clip body including clip sidewalls and a clip cover over the clip sidewalls;

the conductive structure is arranged on the inner surface of the side wall of the clamp and is used for electrically contacting with the internal transmission line; and

an inner lead located inside the clip sidewall and electrically connected to the conductive structure and extending through the clip sidewall and the clip cover to connect to the output line;

when the clamp main body is clamped in a gap between the conductive wires of the internal transmission line, the conductive structure is electrically contacted with the internal transmission line and is electrically connected to the output line through an internal lead.

3. A power distribution unit in accordance with claim 2, wherein said output cord and said internal lead are of a unitary construction, the portion of said unitary construction within said clip body constituting the internal lead and the portion of said unitary construction extending out of said clip body constituting said output cord.

4. A power distribution unit according to claim 1, wherein each of said T sets of internal transmission lines comprises three spaced apart electrically conductive wires for connection to a live, neutral and ground wire, respectively, through said input line.

5. The power distribution unit according to claim 4, wherein the T sets of internal transmission lines are arranged in parallel, wherein there are two adjacent sets of internal transmission lines containing 5 conductive lines in total, and the two sets of internal transmission lines share one conductive line as a conductive line connected to a ground line.

6. The power supply distribution unit according to claim 1, wherein the clip is configured to clip M groups of internal transmission lines, 1 ≦ M ≦ T and M is a positive integer, the number of output lines connected to the clip is M, and the number of interfaces provided at the ends of the output lines is M.

7. A power distribution unit according to claim 2, wherein the material of the clip body is an insulating material.

8. A power supply distribution unit as claimed in claim 1, wherein the number of input lines is T, each input line comprising: the input line structure comprises three input line structures and an insulating outer layer arranged at the periphery of the three input line structures;

wherein each of the three input structures comprises: the conductive core layer in the three input structures is respectively used for being connected with a live wire, a zero wire and a ground wire.

9. The power distribution unit according to claim 1, wherein the clip of the clip output assembly is detachably assembled with the power supply unit main body, the power supply unit main body is made of an insulating material, and an opening matched with the clip is formed in the power supply unit main body, so that when the clip output assembly passes through the opening and is plugged into the power supply unit main body, the clip clips clip one or more groups of the T-group internal transmission lines to realize electrical contact.

10. A cabinet for a data center comprising a power distribution unit as claimed in any one of claims 1 to 9.

Technical Field

The present disclosure relates to the field of electronic technologies, and more particularly, to a power distribution unit and a cabinet of a data center.

Background

A data center is a globally collaborative network of devices that is used to communicate, accelerate, present, compute, and store data information, etc., on an internet network infrastructure. The server cabinets in the data center are provided with Power Distribution units (Power Distribution units) to supply Power to the equipment in the data center. The current PDU configuration is usually a common configuration or can be customized according to the customer's needs, the customized PDU has a specific number of different types of jacks, and the type and number of jacks are set according to the needs of the customer. For example, a custom PDU has 10 national standard 10A jacks and 4 national standard 16A jacks, with national standard 10A and national standard 16A being examples of the types of jacks.

In the course of implementing the disclosed concept, the inventors found that there are at least the following problems in the prior art: both custom and custom configured PDUs, the number of jacks and jack types on the PDU are fixed, and such fixed configurations are inflexible to use and cannot meet changing power requirements. For example, the fixed PDU configuration may have the following inapplicable scenarios: (1) the PDU does not have a jack type suitable for certain equipment, so that the equipment cannot be powered; (2) the jacks are of two types, and are respectively adapted to electrical appliances with different powers, for example, one type is adapted to a high-power device, the other type is adapted to a low-power device, and due to the fixed number of the jacks, the jacks can be adapted to the simultaneous power supply of the high-power device with a first number and the low-power device with a second number, and under the condition that the usage amount of the high-power device is increased and the usage amount of the low-power device is reduced, the situation that the jacks with high power are not enough and the jacks with low power are not enough can be generated, so that the fixed PDU configuration cannot be adapted to the change of the power demand of the electrical appliances.

Disclosure of Invention

In view of the above, the present disclosure provides a power distribution unit and a cabinet of a data center.

One aspect of the present disclosure provides a power distribution unit. The above power supply distribution unit includes: a power supply unit main body; t groups of internal transmission lines are positioned inside the power supply unit main body, T is more than or equal to 2, and T is a positive integer; an input line connected to the T-set internal transmission line and a clip output assembly. The input line is used for accessing a power supply to supply power to each internal transmission line in the T groups of internal transmission lines. The clip output assembly includes: the clip, the output line that extends from the clip to and set up in the terminal interface of output line. The clips are used for clamping one or more groups of the T groups of internal transmission lines to realize electrical contact. The interface is used for being connected into an electrical appliance to supply power to the electrical appliance.

According to an embodiment of the present disclosure, the clip includes: the clip comprises a clip body, a conductive structure and an internal lead. The clip body includes clip sidewalls and a clip cover over the clip sidewalls. The conductive structure is disposed on an inner surface of the clip sidewall for electrical contact with the internal transmission line. The inner leads are located inside the clip sidewalls and are electrically connected to the conductive structure and extend through the clip sidewalls and the clip cover to connect to the output lines. When the clamp main body is clamped in a gap between the conductive wires of the internal transmission line, the conductive structure is electrically contacted with the internal transmission line and is electrically connected to the output line through the internal lead.

According to an embodiment of the present disclosure, the output wire and the internal lead are an integrated structure, a portion of the integrated structure located inside the clip main body constitutes the internal lead, and a portion of the integrated structure extending out of the clip main body constitutes the output wire.

According to the embodiment of the present disclosure, each of the T groups of internal transmission lines includes three conductive wires disposed at intervals, the three conductive wires being respectively used for being connected to the live wire, the neutral wire and the ground wire through the input line.

According to the embodiment of the present disclosure, the T groups of internal transmission lines are arranged in parallel, wherein there are two adjacent groups of internal transmission lines including 5 conductive lines in total, and the two groups of internal transmission lines share one conductive line as a conductive line connected to a ground line.

According to the embodiment of the disclosure, the clamp is configured to clamp M groups of internal transmission lines, M is larger than or equal to 1 and smaller than or equal to T, M is a positive integer, the number of output lines connected with the clamp is M, and the number of interfaces arranged at the tail ends of the output lines is M.

According to an embodiment of the present disclosure, the material of the clip body is an insulating material.

According to an embodiment of the present disclosure, the internal transmission line is a copper bar.

According to an embodiment of the present disclosure, the number of input lines is T pieces. Each input line includes: the input circuit comprises three input line structures and an insulating outer layer arranged on the periphery of the three input line structures. Wherein each of the three input structures comprises: the conductive core layer and the insulating layer wrapping the periphery of the conductive core layer. And the conductive core layers in the three input structures are respectively used for being connected with a live wire, a zero wire and a ground wire.

According to the embodiment of the disclosure, the clip of the clip output assembly is detachably assembled with the power supply unit main body, the power supply unit main body is made of an insulating material, and the power supply unit main body is provided with the opening matched with the clip, so that when the clip output assembly penetrates through the opening to be inserted into the power supply unit main body, the clip clips one or more groups of the transmission lines in the T group to realize electrical contact.

Another aspect of the present disclosure provides a cabinet of a data center including any one of the power distribution units described above.

According to the embodiment of the disclosure, the detachable assembly is realized between the clip output assembly and the power supply unit main body through the clip, the interfaces carried by the clip output assembly can be of various types, and therefore, the interface types of the clip output assembly and the number of the clip output assemblies can be adaptively selected according to different power consumption requirements, so that the clip output assembly with specific interfaces and specific numbers is clamped in the power supply unit main body, the electrical contact between the clip on the clip output assembly and an internal transmission line is realized, the specific interfaces with the specific numbers are connected to an electrical appliance, and the power supply of the electrical appliance is realized.

Drawings

The above and other objects, features and advantages of the present disclosure will become more apparent from the following description of embodiments of the present disclosure with reference to the accompanying drawings, in which:

fig. 1 schematically shows a structural schematic diagram of a power supply distribution unit according to an embodiment of the present disclosure;

FIG. 2 schematically illustrates a structural schematic of a power distribution unit that does not include a clip output assembly, according to an embodiment of the disclosure;

FIG. 3 schematically illustrates a scene schematic diagram of a clip output assembly to be fitted with an internal transmission line according to an embodiment of the disclosure;

FIG. 4 schematically illustrates a clip output assembly in electrical contact with an internal transmission line according to an embodiment of the disclosure; and

fig. 5 is a schematic diagram illustrating the clip output assembly exploded to highlight the detailed structure in a state where the clip output assembly is in electrical contact with the internal transmission line according to an embodiment of the present disclosure.

Detailed Description

Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. It should be understood that the description is illustrative only and is not intended to limit the scope of the present disclosure. In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present disclosure.

The use of "first," "second," and similar language in the description of the embodiments of the disclosure is not intended to imply any order, quantity, or importance, but rather the components are identified. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The directional terms "upper", "lower", "left", "right", "front", "rear", and the like are used merely to indicate relative positional relationships, and when the absolute position of a described object is changed, the relative positional relationships may also be changed accordingly. It will be understood that when an element such as a layer, film, region or component is referred to as being "on" or "under" another element, it can be "directly on" or "under" the other element or intervening elements may be present. In the drawings of the present disclosure, the coordinate systems of all drawings are identical.

The embodiment of the disclosure provides a power supply distribution unit and a cabinet of a data center. The above power supply distribution unit includes: a power supply unit main body; t groups of internal transmission lines are positioned inside the power supply unit main body, T is more than or equal to 2, and T is a positive integer; an input line connected to the T-set internal transmission line and a clip output assembly. The input line is used for accessing a power supply to supply power to each internal transmission line in the T groups of internal transmission lines. The clip output assembly includes: the clip, the output line that extends from the clip to and set up in the terminal interface of output line. The clips are used for clamping one or more groups of the T groups of internal transmission lines to realize electrical contact. The interface is used for being connected into an electrical appliance to supply power to the electrical appliance.

The detachable assembly can be realized between the clamp output assembly and the power supply unit main body through the clamp, the interfaces carried by the clamp output assembly can be of various types, so that various power utilization requirements can be met by replacing the clamp output assemblies with different interface types and changing the number of the clamp output assemblies, the configuration is flexible and convenient, and the problem that the configuration of the existing power supply distribution unit is fixed and cannot be adapted to different power utilization requirements can be solved at least partially.

A first exemplary embodiment of the present disclosure provides a power distribution unit.

Fig. 1 schematically shows a structural schematic diagram of a power supply distribution unit according to an embodiment of the present disclosure. Fig. 2 schematically illustrates a structural schematic diagram of a power distribution unit that does not include a clip output assembly according to an embodiment of the present disclosure.

Referring to fig. 1 and 2, the power distribution unit 1 includes: a power supply unit main body 100; t groups of internal transmission lines 11 are positioned in the power supply unit main body 100, T is more than or equal to 2 and is a positive integer; an input line connected to the T-set internal transmission line 11, and a clip output assembly 12. The input line is used for accessing a power supply to supply power to each internal transmission line in the T groups of internal transmission lines.

In this embodiment, referring to fig. 2, T is 2, T groups of internal transmission lines inside the power supply unit main body 100 are shown as 11, and for convenience of description, each of the two groups of internal transmission lines is described as a first group of internal transmission lines 111 and a second group of internal transmission lines 112.

According to the embodiment of this disclosure, the number of input line equals with the group number of inside transmission line, promptly, the power supply distribution unit of this embodiment includes T input lines, above-mentioned T input line and T internal transmission line one-to-one connection of group, and the power switch of each input line can independent control to the realization is to the independent power supply of each internal transmission line of group.

The setting of two at least ways input can satisfy in the power consumption demand of difference, under the little scene of power consumption demand, can only supply power to one of them input line switch on, supply power to a set of inside transmission line. In a scenario where one of the power supplies is problematic, the other input line may be used to connect a backup power source (e.g., a generator) for power supply. Under the scene that the power consumption demand is great, can switch on the power to two input lines simultaneously.

According to an embodiment of the present disclosure, the number of input lines is T pieces. In the present embodiment, 2 input lines are illustrated, and for convenience of description, the first input line 101 and the second input line 102 are respectively used for description, as shown in fig. 2. Each input line includes: the input circuit comprises three input line structures and an insulating outer layer arranged on the periphery of the three input line structures. Wherein each of the three input structures comprises: the conductive core layer and the insulating layer wrapping the periphery of the conductive core layer. And the conductive core layers in the three input structures are respectively used for being connected with a live wire, a zero wire and a ground wire.

According to the embodiment of the present disclosure, each of the T groups of internal transmission lines includes three conductive wires disposed at intervals, the three conductive wires being respectively used for being connected to the live wire, the neutral wire and the ground wire through the input line. For example, referring to fig. 2, in the first group of internal transmission lines 111, three conductive lines denoted by reference numerals L1, N1, and PE are provided at intervals, the conductive lines extending in the x-axis direction.

In one embodiment, each set of internal transmission lines may be configured with three independent conductive lines, which do not overlap each other. In another embodiment, a common conductive line may also exist between the sets of internal transmission lines to serve as a ground line.

For example, in the embodiment of the present disclosure, T groups of internal transmission lines are arranged in parallel, where there are two adjacent groups of internal transmission lines that contain 5 conductive lines in total, and the two groups of internal transmission lines share one conductive line as a conductive line connected to a ground line.

The arrangement of adopting the common conducting wire as the grounding wire is beneficial to reducing the size of the power supply configuration unit, and meanwhile, the cost of one conducting wire can be saved.

Referring to fig. 2, taking 2 sets of internal transmission lines as an example of a parallel arrangement, the first set of internal transmission lines 111 includes: a first conductive line L1 for being connected with a live line of a first power source through the first input line 101, a second conductive line N1 for being connected with a neutral line of the first power source through the first input line 101, and a third conductive line PE for being connected with a ground line of the first power source through the first input line 101. The second set of internal transmission lines 112 includes: a third conductive line PE for connection to a ground line of the second power source through the second input line 102, a fourth conductive line N2 for connection to a neutral line of the second power source through the second input line 102, and a fifth conductive line L2 for connection to a live line of the second power source through the second input line 102. The third conductive wire PE simultaneously serves as a common ground line for the two internal transmission lines. The first power supply and the second power supply can be two independent power supplies, the two power supplies can be the same or different, and the first power supply and the second power supply can be 220V commercial power or other power supply units after transformation processing.

Although both the input lines and the internal transmission lines are described as "lines," the differences between the two include: the input line is provided with an insulating outer layer, and the input structure comprises an insulating layer arranged on the periphery of the conductive core layer; and the inner transmission line is not provided with an insulating layer.

According to the embodiment of the disclosure, the internal transmission line is positioned inside the power supply unit main body, the internal transmission line is used for realizing current/voltage transmission, and is electrically contacted with the clamp of the clamp output assembly, so that the internal transmission line is a bare conductor and is not provided with an insulating layer. For example, the conductive lines in the internal transmission lines may be copper bars. The input line is located outside the power supply unit main body and used for achieving external electrical connection and operation, an insulating outer layer must be arranged in order to guarantee safety of users, and meanwhile, in order to avoid short circuit after electrical contact of the conductive core layers inside the three input structures, the insulating layer wrapping the periphery of the conductive core layers needs to be arranged.

FIG. 3 schematically illustrates a scene schematic diagram of a clip output assembly to be fitted with an internal transmission line according to an embodiment of the disclosure; FIG. 4 schematically illustrates a clip output assembly in electrical contact with an internal transmission line according to an embodiment of the disclosure; and fig. 5 is a schematic diagram schematically illustrating the clip output assembly in an exploded manner to highlight the detailed structure in a state where the clip output assembly is in electrical contact with the internal transmission line according to an embodiment of the present disclosure.

Referring to fig. 3-5, the clip output assembly 12 includes: a clip, an output line 123 extending from the clip, and an interface 124 disposed at an end of the output line 123. The clips are used to clip one or more of the T internal transmission lines 11 to make electrical contact. The interface 124 is used for accessing an electrical appliance to supply power to the electrical appliance.

According to an embodiment of the present disclosure, referring to fig. 5, the clip includes: a clip body 120, a conductive structure 122, and an inner lead 121. The inner leads 121 are illustrated in dashed lines in fig. 5. The clip body 120 includes a clip sidewall 120a and a clip cover 120b positioned over the clip sidewall 120 a. A conductive structure 122 is disposed on the inner surface of the clip sidewall 120a for electrical contact with the internal transmission line 11. The inner lead 121 is located inside the clip sidewall 120a and is electrically connected to the conductive structure 122 and extends through the clip sidewall 120a and the clip cover 120b to connect to the output line 123. When the clip body 120 is clamped in a gap between the conductive wires of one or more (2 or more) internal transmission lines 11, the conductive structure 122 is electrically connected to the internal transmission line 11 and electrically connected to the output line 123 through the internal lead 121.

According to the embodiment of the present disclosure, the clip main body 120 is made of an insulating material, so that the safety of manual insertion operation can be ensured, and the conductive structure 122 disposed on the clip side wall 120a can electrically contact the clip with the internal transmission line 11. The conductive structure may be a metal dome.

In fig. 5, in order to illustrate the connection relationship corresponding to the internal transmission lines, the internal leads 121 are illustrated with reference numerals L1 ', N1 ', PE ', N2 ', and L2 ', respectively. According to the above embodiment, the power supply distribution unit 1 includes: two input lines, a first input line 101 and a second input line 102, respectively; two sets of internal transmission lines 11, a first set of internal transmission lines 111 and a second set of internal transmission lines 112, the first set of internal transmission lines 111 comprising: the first conductive line L1, the second conductive line N1, and the third conductive line PE, the second-group internal transmission line 112 includes: a third conductive line PE, a fourth conductive line N2, and a fifth conductive line L2. The clip in the power distribution unit 1 includes internal leads 121, the internal leads 121 being two sets of internal leads, respectively depicted as a first set of internal leads 1211 and a second set of internal leads 1212, the first set of internal leads 1211 including: a first inner lead L1' for electrically connecting with the first conductive line L1; a second inner lead N1' for electrically connecting with a second electrically conductive line N1; a third inner lead wire PE' for electrical connection with the third electrically conductive wire PE; a fourth inner lead N2' for electrically connecting with a fourth electrically conductive line N2; and a fifth inner lead L2' for electrically connecting with the fifth electrically conductive line L2.

According to the embodiment of the present disclosure, the clip of the clip output assembly 12 is detachably assembled with the power supply unit main body 100, the power supply unit main body 100 is made of an insulating material, and the power supply unit main body 100 is provided with an opening hole matched with the clip, so that when the clip output assembly 12 is inserted into the power supply unit main body 100 through the opening hole, the clip clips one or more groups of the transmission lines inside the T group to realize electrical contact.

According to the embodiment of the disclosure, the clamp is configured to clamp M groups of internal transmission lines, M is larger than or equal to 1 and smaller than or equal to T, M is a positive integer, the number of output lines connected with the clamp is M, and the number of interfaces arranged at the tail ends of the output lines is M.

For example, in this embodiment, as shown in fig. 3, the clips in one clip output assembly may be configured to clip 2 groups of internal transmission lines by setting gaps or the number of the side walls of the clips, accordingly, 2 output lines 123 connected to the clips are provided, and 2 interfaces 124 at the tail ends of the output lines are provided, where the two interfaces 124 may be the same or different in type, and may be set according to actual needs.

It should be noted that fig. 3-5 highlight the clip output assembly for clarity of illustrating the process of making electrical contact between the clip output assembly 12 and the internal transmission line 11. In fact, as shown in fig. 1, the size of the clip output assembly along the extending direction (x direction) of the internal transmission line is small, and a plurality of clip output assemblies may be provided in the extending direction of the internal transmission line 11.

According to the embodiment of the disclosure, since the material of the clip main body is an insulating material, the inner lead may be a bare conductor wire, or a conductor core externally wrapped with an insulating material. The output line is a conductor core including an insulating layer.

In one embodiment, to simplify the manufacturing process, the output wire 123 and the inner lead 121 are integrated, and the portion of the integrated structure located inside the clip body 120 constitutes the inner lead, and the portion of the integrated structure extending out of the clip body 120 constitutes the output wire.

In summary, in the power distribution unit of the present embodiment, the clip output assembly and the power supply unit main body are detachably assembled by the clip, and the interface of the clip output assembly can be of various types, so that for different power requirements, the type of interface of the clip output assembly and the number of clip output assemblies can be adaptively selected, so that the clip output assembly having a specific interface and a specific number of clips is clipped to the power supply unit main body, so as to realize the electrical contact between the clip on the clip output component and the internal transmission line, connect the specific interfaces of the specific number to the electrical appliance, thereby realizing the power supply to the electric appliance, the number of the interfaces and the types of the interfaces can be flexibly configured, the problem that the existing power supply distribution unit cannot be adapted to different power utilization requirements due to fixed configuration can be at least partially solved.

A second exemplary embodiment of the present disclosure provides a cabinet of a data center including any one of the power distribution units described above.

The data center cabinet is used for placing equipment, which may include but is not limited to: servers, switches, memory or monitors, etc. The power supply distribution unit is used for supplying power to the equipment.

In an embodiment, the clip output assembly 12 is an integrated structure, and under different power requirements, the number of different interface types and clip output assemblies can be changed to meet the requirements. In another embodiment, the clip output assembly may also be two detachable parts, and the part of the output line may be split into two parts, and the detachable implementation may be based on a plug-in or other physical connection, and this scheme only needs to replace the assembly on the side with the interface when different interface types are replaced.

In summary, the present disclosure provides a power supply distribution unit and a data center cabinet, a detachable assembly can be implemented between a clip output assembly and a power supply unit main body through a clip, and interfaces carried by the clip output assembly can be of various types, so that various power consumption requirements can be met by replacing clip output assemblies of different interface types and changing the number of the clip output assemblies, and the power supply distribution unit and the data center cabinet are flexible and convenient to configure and have good practicability.

Those skilled in the art will appreciate that various combinations and/or combinations of features recited in the various embodiments and/or claims of the present disclosure can be made, even if such combinations or combinations are not expressly recited in the present disclosure. In particular, various combinations and/or combinations of the features recited in the various embodiments and/or claims of the present disclosure may be made without departing from the spirit or teaching of the present disclosure. All such combinations and/or associations are within the scope of the present disclosure.

The embodiments of the present disclosure have been described above. However, these examples are for illustrative purposes only and are not intended to limit the scope of the present disclosure. Although the embodiments are described separately above, this does not mean that the measures in the embodiments cannot be used in advantageous combination. The scope of the disclosure is defined by the appended claims and equivalents thereof. Various alternatives and modifications can be devised by those skilled in the art without departing from the scope of the present disclosure, and such alternatives and modifications are intended to be within the scope of the present disclosure.