CN214706508U - Wire concentrator - Google Patents

Abstract

The application provides a concentrator, this concentrator includes connecting portion, main part and connecting wire. The connecting part comprises at least one joint which is arranged in a flat shape. The main body part comprises at least one interface and is provided with a placing surface. The connecting wire is fixedly connected with the main body part and the connecting part and is electrically connected with at least one connector and at least one interface. The connecting line is arranged in a flat shape, and the thickness direction of the connecting line in a smooth state is perpendicular to the thickness direction of the joint and is parallel to the placing surface of the main body part. The concentrator that this application provided is put the position and is more nimble than current concentrator.

Description

Wire concentrator

Technical Field

The application relates to the technical field of data transmission, in particular to a concentrator.

Background

Electronic devices, such as tablet or notebook computers, are becoming more widely used. Due to the portability, the structural design of such products is becoming thinner and lighter, which results in a plurality of incomplete functional interfaces and affects the use of the products. The concentrator solves the problem, provides a plurality of interfaces, and is connected to the electronic equipment through wires in an inserted mode, so that the interface of the electronic equipment is expanded.

When the existing concentrator is spliced on electronic equipment, the wire is not easy to bend, so that the placement direction of the concentrator is not flexible, and the requirements of users cannot be met.

SUMMERY OF THE UTILITY MODEL

The application provides a concentrator has solved current concentrator and has put the inflexible technical problem in position.

The technical scheme adopted by the application is as follows: a hub is provided, which includes a connection portion, a main body portion, and a connection wire. The connecting part comprises at least one joint which is arranged in a flat shape. The main body part comprises at least one interface and is provided with a placing surface. The connecting wire is fixedly connected with the main body part and the connecting part and is electrically connected with at least one connector and at least one interface. The connecting line is arranged in a flat shape, and the thickness direction of the connecting line in a smooth state is perpendicular to the thickness direction of the joint and is parallel to the placing surface of the main body part.

Optionally, the connecting line comprises at least two sub-lines arranged in parallel, and at least one joint is electrically connected with the at least two sub-lines; wherein, the arrangement direction of at least two sub-lines is vertical to the thickness direction of the connecting line.

Optionally, the connecting portion includes at least two joints arranged in parallel, and is connected with the at least two sub-wires in a one-to-one correspondence manner.

Optionally, the connecting portion further comprises an inner mold, an outer mold and a circuit board, the inner mold is used for fixing the circuit board, the outer mold is wrapped in the inner mold, and at least one connector is fixedly connected with the circuit board and extends out of the outer mold; one end of the connecting wire, which is used for connecting the connecting part, is inserted into the inner die, and at least part of two sides of the connecting wire in the width direction is exposed out of the inner die and is wrapped by the outer die.

Optionally, the thickness of the outer mold at the connection part and the connecting line is smaller than the thickness of the outer mold at other positions.

Optionally, the main body portion includes a first end face and a second end face arranged at intervals along a length direction thereof, and a first side face and a second side face connected between the first end face and the second end face, the second side face is connected with the first side face and can be set as a placing face, and an included angle between the first side face and the second side face is greater than 0 ° and smaller than 180 °; wherein, the one end of connecting wire keeping away from the connecting portion is connected in first side, and every interface sets up in first terminal surface, second terminal surface and first side and second side in one.

Optionally, the number of the first side surfaces is two, and the two first side surfaces are arranged at intervals along the width direction of the main body part; the number of the second side surfaces is two, and the two second side surfaces are arranged at intervals along the thickness direction of the main body part; one second side surface is set as a placing surface, and one end of the connecting line, which is far away from the connecting part, is connected with one first side surface and is closer to the first end surface; each interface is arranged on one of the first end surface, the second end surface, the two first side surfaces and the second side surface deviating from the placing surface.

Optionally, the connecting wire can be bent in a smooth state and then faces the first end face, the first end face is provided with accommodating grooves, and the number of the accommodating grooves is consistent with the number of the connectors and is used for allowing the connectors to be inserted into the accommodating grooves.

Optionally, a soft rubber layer is arranged in the accommodating groove and used for providing damping when the connector is plugged.

Optionally, one end of the connecting line for connecting the connecting portion and the at least one joint are respectively located on two opposite side surfaces of the connecting portion, so that the connecting portion is in a straight-insertion structure; or the connecting line is used for connecting one end of the connecting part and at least one joint which are respectively positioned on two adjacent side surfaces of the connecting part, so that the connecting part is in a side-inserting structure.

The beneficial effects of the application are explained by taking the use scene of the hub on the desktop as an example: in the practical use process, the concentrator can be inserted into the electronic equipment through the joint, at the moment, the thickness direction of the joint is perpendicular to the desktop, the placing surface of the main body part is placed on the desktop, and the connecting line is in a smooth state. Because the connecting wire is the platykurtic setting, and its thickness direction is perpendicular with the thickness direction who connects, and it is parallel with the face of placing of main part, make the thickness direction of connecting wire be on a parallel with the desktop, when so the connecting wire is put on the desktop, can buckle on the thickness direction of connecting wire, make the stress of buckling that receives when buckling less, make the buckling of connecting wire comparatively easy, and then make the connecting wire can realize comparatively nimble swing on the desktop, make the concentrator can put with more position on the desktop, be convenient for adjust the position of concentrator.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of an embodiment of a hub according to the present application;

FIG. 2 is a cross-sectional view of the connection portion of the hub of FIG. 1;

FIG. 3 is a schematic structural diagram of the connection lines of the hub of FIG. 1;

FIG. 4 is a schematic diagram of a portion of the hub of FIG. 1;

fig. 5 is another schematic structural diagram of an embodiment of the hub of the present application.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be noted that the following examples are only illustrative of the present application, and do not limit the scope of the present application. Likewise, the following examples are only some examples and not all examples of the present application, and all other examples obtained by a person of ordinary skill in the art without any inventive work are within the scope of the present application.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the specification. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

As shown in fig. 1, fig. 1 is a schematic structural diagram of an embodiment of the hub of the present application. Hub 100 is also known as a docking station or dock. The hub 100 may include a connection part 10, a main body part 20, and a connection wire 30. The connecting portion 10 includes at least one joint 101, and the joint 101 is disposed in a flat shape. The main body 20 includes at least one interface 206 and is provided with a placement surface. The connecting wire 30 is fixedly connected to the main body 20 and the connecting portion 10, and electrically connects the at least one connector 101 and the at least one interface 206. The connection line 30 is provided in a flat shape, and the thickness direction of the connection line 30 in a smooth state is perpendicular to the thickness direction of the contact 101 and is parallel to the mounting surface of the main body 20.

The smooth state of the connection line 30 may be a natural state in which the connection line 30 is not twisted by an external force. In the twisted state of the connection wire 30, the thickness direction of the connection wire 30 may be any direction, and may not be perpendicular to the thickness direction of the contact 101 or parallel to the mounting surface of the main body 20, for example, and the present application is not limited thereto.

In the present embodiment, two objects are perpendicular to each other, and a certain error range can be allowed, and the error range is, for example, -5 ° to 5 °, that is, the angle between the two is in the range of 85 ° to 95 °, and the two can be considered to be perpendicular to each other. For example, the thickness direction of the connection line 30 is perpendicular to the thickness direction of the joint 101, and a suitable error range can be allowed, and the error range can be set according to actual conditions, for example, from-3 ° to 3 °, from-5 ° to 5 °, or from-8 ° to 8 °.

Similarly, the two objects are parallel to each other, and may have a certain error range, for example, an error range of-5 ° to 5 °, that is, an angle between the two is in a range of-5 ° to 5 °, and the two may be considered to be parallel to each other. For example, the thickness direction of the connection line 30 is parallel to the mounting surface of the main body 20, and a suitable error range can be allowed, and the error range can be set according to actual circumstances, for example, from-3 ° to 3 °, from-5 ° to 5 °, or from-8 ° to 8 °.

The resting surface of the main body portion 20 may be adapted to contact a resting platform (e.g., a table, floor, etc.). The resting surface of the body portion 20 may be a surface of its own or may be defined by a resting structure thereon for contacting a resting platform. For example, the main body portion 20 can be placed on a plane by a placing support provided thereon, such as a tripod or a quadruped support, and then the plane defined by the end of the tripod or the quadruped support contacting with the placing platform is the placing plane of the main body portion 20. Of course, there are many ways to place the stand, not limited to the tripod stand or the quadrangle stand mentioned above.

Taking the usage scenario of the hub 100 on the desktop as an example, the present embodiment will be described: in actual use, the hub 100 can be plugged into an electronic device through the connector 101. The electronic device is, for example, a notebook computer, and the thickness direction of the corresponding interface on the notebook computer is also generally perpendicular to the desktop. When the connector 101 is plugged into the electronic device, the thickness direction of the connector 101 may be perpendicular to the desktop, the main body 20 is placed on the desktop through the placement surface thereof, and the connection line 30 is in a smooth state. Because the connecting wire 30 is the platykurtic setting, and its thickness direction is perpendicular with the thickness direction who connects 101, and it is parallel with the face of placing of main part 20, make the thickness direction of connecting wire 30 be on a parallel with the desktop, when so connecting wire 30 is put on the desktop, can buckle on the thickness direction of connecting wire 30, the stress of buckling that receives when buckling is less, it is comparatively easy to make the buckling of connecting wire 30, and then make connecting wire 30 can realize comparatively nimble swing on the desktop, can adjust concentrator 100 locating position on the desktop according to actual conditions, reduce the interference between the part on concentrator 100 and other desktops, and also do benefit to the resilience of connecting wire 30, improve the life of concentrator 100.

Of course, the hub 100 described in this embodiment may also be applied to other life scenes or work scenes, which is not limited in this application, and those skilled in the art may select the hub according to actual needs.

The connecting portion 10 may have a substantially rectangular parallelepiped shape, and a connector 101 is provided on one surface of the connecting portion 10 for being plugged into an electronic device. For example, the connector 101 may be a male USB connector, such as any one of USB Type-A, USB Type-B, USB Type-C, and misro USB.

An "electronic device" in this application may include, but is not limited to, a device configured to receive/transmit communication signals via a wireline connection, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection, and/or another data connection/network, and/or via a wireless interface (e.g., for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and/or another communication terminal). Such as smart phones, tablets, laptops, wearable devices, and the like.

As shown in fig. 2, fig. 2 is a schematic cross-sectional view of a connection portion of the hub shown in fig. 1. Further, the connection portion 10 may further include an inner mold 102, an outer mold 103, and a circuit board 104.

The inner mold 102 is used for fixing the circuit board 104, for example, the material of the inner mold 102 may be low pressure glue. The outer mold 103 is wrapped around the inner mold 102 to serve as an outer coating material for forming the appearance of the connecting portion 10, for example, the outer mold 103 may be made of tpe (thermoplastic elastomer). The connector 101 is fixedly attached to the circuit board 104. Openings may be provided in the overmold 103 and the contacts 101 may extend out of the overmold 103 through the openings provided in the overmold 103 for connection with an electronic device. For example, the connector 101 may be attached to an edge of the circuit board 104.

As shown in fig. 1, the number of joints 101 may be two. For example, the two joints 101 may be provided on the same side surface of the connection part 10. The number of joints 101 is not limited in this embodiment, and the number of joints 101 may be one, or three, four, five, or even more. In addition, the embodiment also does not limit the specific arrangement manner of the joint 101 on the connecting portion 10, and a person skilled in the art can select the arrangement manner according to actual requirements.

As shown in fig. 3, fig. 3 is a schematic structural diagram of the connection line 30 of the hub shown in fig. 1. The connection line 30 may comprise two sub-lines 301 arranged side by side. The arrangement direction of the two sub-wires 301 may be perpendicular to the thickness direction of the connection line 30 to reduce the thickness of the connection line 30, so that the connection line 30 is disposed in a flat shape, and thus, the connection line 30 can be bent in the thickness direction thereof. Further, the connection line 30 may further include an insulating sheath 302 covering the two sub-lines 301. The number of the sub-lines 301 is not limited in this embodiment, the number of the sub-lines 301 may also be one, or three, four, five, or even more, and those skilled in the art can select the number according to actual requirements.

Wherein, two joints 101 and two sub-lines 301 can be connected in one-to-one correspondence. Specifically, the two sub-wires 301 may be fixedly connected to the circuit board 104 of the connection portion 10, and electrically connected to the two connectors 101 through the circuit board 104 in a one-to-one correspondence manner. Of course, each joint 101 may also correspond to a plurality of sub-wires 301, and this embodiment is not limited, and a person skilled in the art may select the sub-wires according to actual needs.

Further, as shown in fig. 2, one end of the connection wire 30 for connecting the connection portion 10 may be inserted into the inner mold 102 to achieve a reliable connection between the connection wire 30 and the connection portion 10. Of course, one end of the connection line 30 connected to the connection portion 10 may also be inserted into the outer mold 103, and this embodiment is not limited, and a person skilled in the art may select the connection line according to actual requirements.

In the following description, the "thickness of the connection part 10" may refer to a distance H (shown in fig. 1) between two surfaces of the connection part 10 perpendicular to the thickness direction of the joint 101.

The thickness direction of the connecting portion 10 is perpendicular to the thickness direction of the connecting line 30, in other words, the width direction of the connecting line 30 is substantially coincident with the thickness direction of the connecting portion 10. When the electronic device is plugged into the connecting portion 10, the thickness direction of the connecting portion 10 is substantially the same as the thickness direction of the electronic device, and the thickness direction of the interface on the electronic device is also substantially the same as the thickness direction of the electronic device, so that the thickness direction of the connecting wire 30 is perpendicular to the thickness direction of the connector 101, that is, perpendicular to the thickness direction of the connecting portion 10.

As described above, since the connection line 30 is provided in a flat shape, particularly when two sub-lines 301 are arranged in parallel, the thickness of the connection line 30 is small, and the width thereof is relatively large. When the connector 101 is plugged into an electronic device, since the electronic device is increasingly thinner and lighter, if the thickness of the connecting portion 10 is greater than that of the electronic device, the connecting portion 10 will be higher than the corresponding plane of the electronic device, which affects the use experience and the appearance.

In order to control the thickness of the connection portion 10, two sides of the connection line 30 in the width direction may be at least partially exposed from the inner mold 102, as shown in fig. 2 and 4, and fig. 4 is a partial structural schematic view of the hub shown in fig. 1. Specifically, the portion of the connection wire 30 exposed from the inner mold 102 may be wrapped by an outer mold 103 (not shown in fig. 4), which is beneficial to control the thickness of the connection portion 10 and ensure a reliable connection between the connection wire 30 and the connection portion 10.

In order to control the thickness of the connection portion 10, the thickness of the outer mold 103 may also be set to a gradual thickness. Specifically, with continued reference to fig. 2, the thickness H1 of the outer mold 103 at the connection point of the connecting portion 10 and the connecting line 30 is smaller than the thickness H2 of the outer mold 103 at other positions, so as to reduce the thickness of the connecting portion 10 as much as possible.

Further, as shown in fig. 1, the connection portion 10 may include a first portion 10a and a second portion 10b disposed side by side, and the first portion 10a and the second portion 10b may be integrally formed. Wherein the connector 101 may be disposed on the first portion 10a and the connection line 30 may be connected to the second portion 10 b. The second portion 10b is limited in thickness by the width of the connection line 30 because of the connection with the connection line 30. In order to prevent the thickness of the connecting portion 10 from being higher than the thickness of the electronic device when the connector 101 is plugged into the electronic device, the thickness of the first portion 10a may be smaller than the thickness of the second portion 10 b.

Next, the structure of the main body 20 will be described in detail. As shown in fig. 1, the main body 20 may be provided in a plate shape. The body portion 20 may include first and second end surfaces 201 and 202 spaced apart along a length thereof, and first and second side surfaces 203 and 204 connected between the first and second end surfaces 201 and 202. The first side 203 and the second side 204 are connected to each other and perpendicular to each other. Of course, the present embodiment does not limit this, and the included angle between the first side surface 203 and the second side surface 204 is greater than 0 ° and less than 180 °, which can be selected by a person skilled in the art according to actual requirements.

Specifically, the number of the first side surfaces 203 is two, and the two first side surfaces 203 are provided at intervals in the width direction of the main body portion 20. The number of the second side surfaces 204 is two, and the two second side surfaces 204 are provided at intervals in the thickness direction of the main body portion 20. Of course, the present embodiment is not limited to the specific number of the first side surface 203 and the second side surface 204, and those skilled in the art can select the number according to actual requirements.

As shown in fig. 1, a plurality of interfaces 206 may be disposed on both first sides 203 of the body portion 20. For example, the interface 206 may be any combination of a USB interface, an audio interface, an SD/TF card slot, a vga (video Graphics array) interface, an hdmi (high Definition Multimedia interface) interface, and a network cable interface. Of course, the number of the interfaces 206 may also be one, and the embodiment is not limited with respect to the type of the interfaces 206 and the number of each type of interface, and a person skilled in the art may select the number according to actual requirements.

One of the second side surfaces 204 may be configured as a resting surface. As shown in fig. 1, either of the two second side surfaces 204 may serve as a resting surface. That is, when the hub 100 is placed for use on a desktop, either of the second sides 204 is for placement on the desktop.

In some embodiments, the two first side surfaces 203, the first end surface 201, the second end surface 202 and one of the second side surfaces 204 of the main body portion 20 may be provided with the interface 206, and the other second side surface 204 may be a placing surface. In some embodiments, the two first side surfaces 203, the first end surfaces 201 and the second end surfaces 202, and the two second side surfaces 204 of the main body portion 20 may be provided with the interfaces 206, and any one of the two second side surfaces 204 may be used as a placing surface. The specific arrangement of the interface 206 on the main body 20 is not limited in this embodiment, and those skilled in the art can select the arrangement according to actual requirements.

An end of the connection line 30 remote from the connection portion 10 may be connected to one of the first side surfaces 203. For example, the connecting line 30 may be connected to an end of the first side surface 203 closer to the first end surface 201. Specifically, in the hub 100 shown in fig. 1, since the interfaces 206 are distributed on the two first side surfaces 203, the first end surface 201 or the second end surface 202 of the main body portion 20 is most ideally disposed toward the user. The connecting line 30 is connected with the first side surface 203, and compared with the connection of the connecting line 30 with the first end surface 201 or the second end surface 202, the bending of the connecting line 30 when the main body portion 20 is in the optimal placing state is reduced, and the change of the position of the main body portion 20 caused by the rebound of the connecting line 30 is avoided.

Further, as shown in fig. 1, the connecting wire 30 can be bent toward the first end surface 201 while keeping a smooth state, the first end surface 201 is provided with receiving grooves 205, and the number of the receiving grooves 205 is the same as the number of the connectors 101, so that the connectors 101 can be inserted into the receiving grooves 205.

For example, the number of the accommodating grooves 205 may also be two, which is the same as the number of the joints 101, so that each joint 101 corresponds to one accommodating groove 205. Of course, the number of the receiving grooves 205 and the number of the joints 101 may also be different, for example, two joints 101 may also share one receiving groove 205, which is not limited in this embodiment, and those skilled in the art may select the receiving groove according to actual requirements.

The accommodating groove 205 may further be provided with a soft adhesive layer for providing damping when the connector 101 is inserted and pulled out. The soft adhesive layer is favorable for ensuring proper plugging force and plays a role in protecting the joint 101.

Referring to fig. 1, one end of the connecting wire 30 for connecting the connecting portion 10 and the connector 101 may be respectively located on two adjacent sides of the connecting portion 10, so that the connecting portion 10 is a side-inserting structure. In some embodiments, the connecting wire 30 for connecting one end of the connecting portion 10 and the connector 101 may also be respectively located on two opposite sides of the connecting portion 10, so that the connecting portion 10 is an in-line structure, as shown in fig. 5, and fig. 5 is another schematic structural diagram of the hub embodiment of the present application.

On the one hand, the connection portion 10 is a side-insertion structure, which is more flexible in placement direction in the actual use process of the hub 100 than the connection portion 10 is a straight-insertion structure. On the other hand, since the end of the connecting wire 30 away from the connecting portion 10 is disposed at the end of the first side surface 203 of the main body portion 20 close to the first end surface 201, and the accommodating groove 205 for accommodating the connector 101 is disposed on the first end surface 201, the connecting portion 10 is a side-plug structure, compared with the connecting portion 10 which is a straight-plug structure, and when the connector 101 on the connecting portion 10 is accommodated in the accommodating groove 205, the connecting wire 30 is less bent, which is beneficial for protecting the connecting wire 30.

The terms "first", "second" and "third" in this application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any indication of the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise. All directional indications (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are only used to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

The above description is only a part of the embodiments of the present application, and not intended to limit the scope of the present application, and all equivalent devices or equivalent processes performed by the content of the present application and the attached drawings, or directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims (10)

1. A hub, comprising:

a connection portion including at least one joint, the joint being disposed in a flat shape;

the main body part comprises at least one interface and is provided with a placing surface;

the connecting wire is fixedly connected with the main body part and the connecting part and electrically connected with the at least one joint and the at least one interface;

the connecting line is arranged in a flat shape, and the thickness direction of the connecting line in a smooth state is perpendicular to the thickness direction of the connector and is parallel to the placing surface of the main body part.

2. The hub according to claim 1,

the connecting line comprises at least two sub-lines which are arranged in parallel, and the at least one joint is electrically connected with the at least two sub-lines; wherein the arrangement direction of the at least two sub-lines is perpendicular to the thickness direction of the connecting line.

3. The hub according to claim 2,

the connecting part comprises at least two connectors which are arranged in parallel and are connected with the at least two sub-lines in a one-to-one corresponding mode.

4. The hub according to claim 1,

the connecting part further comprises an inner die, an outer die and a circuit board, the inner die is used for fixing the circuit board, the outer die is wrapped on the inner die, and the at least one connector is fixedly connected with the circuit board and extends out of the outer die;

the connecting wire is used for connecting one end of the connecting portion and is inserted into the inner die, and at least part of two sides of the connecting wire in the width direction is exposed out of the inner die and is wrapped by the outer die.

5. The hub according to claim 4,

the thickness of the outer die at the connecting part of the connecting part and the connecting line is smaller than that of the outer die at other positions.

6. The hub according to claim 1,

the main body part comprises a first end face and a second end face which are arranged at intervals along the length direction of the main body part, and a first side face and a second side face which are connected between the first end face and the second end face, the second side face is connected with the first side face and can be set as the placing face, and an included angle between the first side face and the second side face is larger than 0 degree and smaller than 180 degrees;

one end of the connecting wire, which is far away from the connecting part, is connected to the first side surface, and each interface is arranged on one of the first end surface, the second end surface, the first side surface and the second side surface.

7. The hub according to claim 6,

the number of the first side surfaces is two, and the two first side surfaces are arranged at intervals along the width direction of the main body part; the number of the second side surfaces is two, and the two second side surfaces are arranged at intervals along the thickness direction of the main body part;

one of the second side surfaces is set as the placing surface, and one end of the connecting line, which is far away from the connecting part, is connected to one of the first side surfaces and is closer to the first end surface; each interface is arranged on one of the first end face, the second end face, the two first side faces and the second side face which is far away from the placing face.

8. The hub according to claim 7,

the connecting wire can be bent under the smooth state and then faces the first end face, accommodating grooves are formed in the first end face, the number of the accommodating grooves is consistent with that of the connectors, and the connectors are used for being inserted to be accommodated in the accommodating grooves.

9. The hub according to claim 8,

a soft adhesive layer is arranged in the accommodating groove and used for providing damping when the connector is plugged and pulled out.

10. The hub according to claim 1, wherein the connecting wire is used for connecting one end of the connecting portion and the at least one connector are respectively located on two opposite sides of the connecting portion, so that the connecting portion is in a straight-through structure; alternatively, the first and second electrodes may be,

the connecting wire is used for connecting one end of the connecting part and the at least one joint are respectively positioned on two adjacent side surfaces of the connecting part, so that the connecting part is of a side-inserting structure.

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