CN109621456B

CN109621456B - Building block

Info

Publication number: CN109621456B
Application number: CN201811649552.XA
Authority: CN
Inventors: 肖建飞; 程发葵; 李斌
Original assignee: Shanghai Putao Technology Co Ltd
Current assignee: Shanghai Putao Technology Co Ltd
Priority date: 2018-09-30
Filing date: 2018-09-30
Publication date: 2021-03-16
Anticipated expiration: 2038-09-30
Also published as: CN109276894B; CN109276894A; CN109621456A

Abstract

The invention provides a building block, comprising: the building block piece body is provided with a building block male head or a building block female head, the building block male head is provided with a first opening, the building block female head is provided with a second opening, and an accommodating space is formed inside the body and communicated with the first opening or the second opening; the first connector is arranged at the first opening; and a second connector disposed at the second opening; when the building block pieces are spliced with other building block pieces with the male building block heads and/or the female building block heads, the first connectors and the second connectors arranged in different building block pieces are electrically connected. The function of the wire is realized when the building blocks are spliced.

Description

Building block

The application is a divisional application of a prior Chinese patent application 'building block' with the application date of 09 and 30 in 2018 and the application number of CN 201811157155.0.

Technical Field

The embodiment of the application relates to a toy, in particular to a building block piece.

Background

Today technological advances penetrate into various fields, such as building blocks. Traditional building blocks can only provide amusement for children through setting up different molding, and now make building blocks realize that the teaching in recreation is more and more taken into account through setting up building blocks, for example through set up electronic component and power supply unit in the building blocks spare to connect through the wire, make building blocks have electronic device's function.

However, a long lead is usually required between the existing electronic component and the power supply unit, and the lead is exposed outside the building block, which not only affects the appearance, but also is easy to break to cause electric leakage, and has potential safety hazard.

Therefore, it is desirable to develop an electrical connection structure that is easy to apply to building blocks to solve the above-mentioned problems in the prior art.

Disclosure of Invention

In view of the deficiencies in the prior art, it is an object of the present invention to provide a building block.

According to the invention there is provided a building block comprising:

the building block piece body is provided with a building block male head or a building block female head, the building block male head is provided with a first opening, the building block female head is provided with a second opening, and an accommodating space is formed inside the body and communicated with the first opening or the second opening;

the first connector is arranged at the first opening; or

A second connector disposed at the second opening;

the building block pieces are suitable for being spliced with other building block pieces with the male building block heads and/or the female building block heads to form building block piece building combinations, the male building block heads of the building block pieces are suitable for being spliced with the female building block heads of the other building block pieces so that the first connectors arranged on the male building block heads are electrically connected with the second connectors of the other building block pieces, or the female building block heads of the building block pieces are suitable for being spliced with the male building block heads of the other building block pieces so that the second connectors arranged on the female building block heads are electrically connected with the first connectors of the other building block pieces;

the first connector is provided with two first electrical pins (A1, A2) and two second electrical pins (B1, B2) which are respectively fixed on a first fixed seat, the second connector is provided with two third electrical pins (C1, C2) and two fourth electrical pins (D1, D2) which are respectively fixed on a second fixed seat, and the two second electrical pins (B1, B2) are respectively and electrically connected with the two third electrical pins (C1, C2).

Preferably, the third electrical pin (C1) and the fourth electrical pin (D1) form a first electrical conductor having a first groove, the first electrical pin (a1) and the second electrical pin (B1) form a first conductive protrusion, and the first conductive protrusion is adapted to be inserted into the first groove of the first electrical conductor of another block element to form an electrical connection.

Preferably, the first fixing base is provided with a first extending portion, which extends from the first fixing base in a direction away from the first fixing base to form an upper surface (E), and a first inner cavity is formed inside the first extending portion, the first conductive protrusion is disposed in the first inner cavity, and a distance between an upper end of the first electrical pin (a1) and the upper surface (E) of the first extending portion is L, where L is greater than 0.

Preferably, the third electrical pin (C1) and the fourth electrical pin (D1) form a second conductive protrusion, the first electrical pin (a1) and the second electrical pin (B1) form a second conductor with a second groove, and the second conductive protrusion is used for being plugged into the second groove of the first conductor of another building block to form an electrical connection.

Preferably, the first electrical pin (a1) and the second electrical pin (B1) form a third electrical conductor, the third electrical pin (C1) and the fourth electrical pin (D1) form a fourth electrical conductor, and the third electrical conductor and the fourth electrical conductor contact to form an electrical connection when the male plug and the female plug are engaged.

Preferably, the first fixing base is provided with a second extending portion, the second extending portion extends from the first fixing base to a direction away from the first fixing base, a second inner cavity is formed inside the second extending portion, and the second/third electric conductors are arranged in the second inner cavity;

the second fixing seat is provided with a third extending part which extends from the second fixing seat to the direction far away from the second fixing seat, and a third inner cavity is formed in the second fixing seat;

the third extension part is matched with the second extension part, and the second extension part is used for being inserted into the third extension part 1051, so that the first electrical pins (A1 and A2) of the building block are respectively and electrically connected with the fourth electrical pins (D1 and D2) of another building block.

Preferably, the first electrical pin (a2) and the second electrical pin (B2) are connected by a wire and fixed on the first fixing base, the third electrical pin (C2) and the fourth electrical pin (D2) are connected by a wire and fixed on the second fixing base, and when the female building block head of a building block is plugged with the male building block head of another building block, the fourth electrical pin (D2) of the building block contacts with the first electrical pin (a2) of another building block to form an electrical connection.

Preferably, the connecting device further comprises a connecting sleeve, which is arranged in the accommodating space and used for connecting and fixing the first fixing seat and the second fixing seat.

Preferably, a third opening is formed in a side wall of the building block body, the third opening is communicated with the accommodating space, a switch button is arranged in the third opening, and the switch button is arranged between the first connector and the second connector and used for conducting or breaking the electrical connection between the second electrical connectors (B1, B2) and the third electrical connectors (C1, C2).

Preferably, a building block adapter male connector is arranged on the periphery of the third opening of the building block body, the size of the building block adapter male connector is the same as that of the building block male connector, the direction of the building block adapter male connector is perpendicular to that of the building block male connector and that of the building block female connector, and the building block adapter male connector is suitable for being inserted into the building block female connector of another building block.

Compared with the prior art, the invention has the following beneficial effects:

the invention provides an electrical connection structure of building blocks, which can realize electrical connection between an electronic element and a power supply unit by splicing building blocks directly without conducting wires.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the embodiments of the present application, and other drawings can be obtained by those skilled in the art according to the drawings.

FIG. 1 is an overall schematic view of one embodiment of a building block of the present application;

FIG. 2A is a cross-sectional view of one embodiment of a building block of the present application;

FIG. 2B is a perspective view of the connector inside the building block body shown in FIG. 2A;

FIG. 2C is a cross-sectional view of the connector inside the building block body shown in FIG. 2A;

FIG. 3A is a cross-sectional view of another embodiment of a building block of the present application;

FIG. 3B is a perspective view of the connector inside the building block body shown in FIG. 3A;

FIG. 3C is a cross-sectional view of the connector inside the building block body shown in FIG. 3A;

FIG. 4A is a cross-sectional view of yet another embodiment of a building block of the present application;

FIG. 4B is a perspective view of the connector inside the building block body shown in FIG. 4A;

FIG. 4C is a cross-sectional view of the connector inside the building block body shown in FIG. 4A;

FIGS. 5A-5C are block diagrams illustrating an embodiment of three building blocks of the present application in combination with other building blocks;

FIGS. 6A-6C are overall schematic views of three embodiments of the building block of the present application in combination with other building blocks in an alternate embodiment;

FIG. 7 is a schematic view of yet another embodiment of a building block of the present application.

Element number

A building block piece 100; a building block piece 300; a building block piece 400; building block pieces 200; a building block body 101; male building block 1011; building block male 2011; building block female head 1012; a first opening 10111; a second opening 10121; an accommodating space 1013; a first connector 102; a first connector 202; a second connector 103; a second connector 301; an electronic component 302; a first connector 401; a power supply unit 402; a building block female head 303; a second connector 301; male building block 403; first electrical leads (A1, A2); second electrical leads (B1, B2); a first fixed seat 104; third electrical leads (C1, C2); a fourth electrical pin (D1, D2); a second fixing base 105; a conductive line 111; a conductive line 112; a connecting sleeve 106; an annular projection 3031; an inner wall 1014; building block male head 304; building block male 404; a first recess 501; a first electrical conductor 502; a first conductive bump 503; a first extension 1041; an upper surface (E); a first lumen 504; a second conductive bump 601; a second groove 602; a second electrical conductor 603; a second extension 1042; a second lumen 1043; a third extension 1051; a third lumen 1052; a third conductor 701; a fourth electrical conductor 702; a third opening 113; a switch button 114; a button 115; the building blocks are adapted to the male connector 116.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application shall fall within the scope of the protection of the embodiments in the present application.

The following further describes specific implementations of embodiments of the present application with reference to the drawings of the embodiments of the present application.

Referring to FIG. 1, which is an overall schematic view of an embodiment of a building block of the present application, in one embodiment of the present application, a building block 100 includes:

the building block piece body 101 is provided with a male building block head 1011 and a female building block head 1012, the male building block head 1011 is provided with a first opening 10111, the female building block head 1012 is provided with a second opening 10121, and a containing space 1013 is formed inside the body 101 and is communicated with the first opening 10111 and the second opening 10121;

a first connector 102 disposed in the first opening 10111; and

a second connector 103 disposed in the second opening 10121 and electrically connected to the first connector 102;

the building block piece 100 is suitable for being connected with other building blocks with the male building block head 1011 and/or the female building block head 1012 to form a building block piece building combination, the male building block head 1011 of the building block piece 100 is suitable for being connected with the female building block heads of the other building blocks to enable the first connector 102 arranged on the male building block head 1011 to be electrically connected with the second connectors of the other building blocks, or the female building block head 1012 of the building block piece 100 is suitable for being connected with the male building block heads 1011 of the other building blocks to enable the second connector 103 arranged on the female building block head 1012 to be electrically connected with the first connectors of the other building blocks.

Meanwhile, the arrangement of the first connector 102 and the second connector 103 does not change the essential structure of the male connector 1011 and the female connector 1012 of the building block, and when the electrical connection is not required, the male connector 1011 and the female connector 1012 of the building block can be respectively plugged with the common female connector and male connector of the building block without connectors, so that the building block piece 100 can be plugged with the common building block.

Other building blocks may be other building blocks 100, or other building blocks having male 1011 and/or female 1012 building blocks, as follows:

please refer to fig. 5A-5C, which are overall schematic diagrams of three embodiments of the building block of the present application, respectively, illustrating an embodiment of inserting other building blocks, in which the other building blocks are the building block 200 (which has the same structure as the building block 100), the male building block 2011 of the building block 200 is inserted into the female building block 1012 of the building block 100, and when the male building block 2011 of the building block 200 is inserted into the female building block 1012 of the building block 100, the first connector 202 of the building block 200 is connected to the second connector 103 of the building block 100 to form an electrical connection.

Referring to FIGS. 6A-6C, which are schematic overall views of three embodiments of the building block of the present application, in which the other building blocks are a building block 300 and a building block 400, the bodies of the building block 300 and the building block 400 are identical in structure to the body of the building block 100, and have a female building block head and a male building block head, respectively, the difference is that the building block 300 has a second connector 301 and an electronic component 302, the building block 400 has a first connector 401 and a power supply unit 402, the female building block head 303 of the building block 300 is inserted into the male building block head 1011 of the building block 100, the second connector 301 of the building block 300 is connected to the first connector 102 of the building block 100 to form an electrical connection, the male building block head 404 of the building block 400 is inserted into the female building block head 1012 of the building block 100, when the male head 404 of the building block 400 is inserted into the female head 1012 of the building block 100, the first connector 401 of the building block 400 is connected to the second connector 103 of the building block 100 to form an electrical connection, so that the power supply unit 402 and the electronic element 302 are connected, a current loop is formed between the power supply unit 402 and the electronic element 302, and the electronic element 302 can work. The power supply unit 402 may be a power source, such as a battery, a dry cell, a lithium battery, or any other device capable of providing electric power. The electronic component 302 may be any power-consuming component, such as a light emitting lamp or a sound emitting device.

The embodiment of the application sets up first connector and second connector through the public head of the female head of building block and the building block of same building block spare, works as building block spare with have the public head of building block and/or when other building block spare of the female head of building block are pegged graft, locate first connector and second connector electric connection in different building block spares, these building block spares just form the circuit to can be connected power supply unit and electronic component, make power supply unit do electronic component provides the power, supplies electronic component moves, therefore power supply unit and electronic component's circuit connection both can realize through building block splicing spare, and need not expose the wire to the building block spare outside, has increased the security of building block spare concatenation.

Referring to fig. 2A-4B, in these embodiments, the first connector 102 has two first electrical pins (a1, a2) and two second electrical pins (B1, B2) respectively fixed to a first fixing base 104, the second connector 103 has two third electrical pins (C1, C2) and two fourth electrical pins (D1, D2) respectively fixed to a second fixing base 105, and the two second electrical pins (B1, B2) are respectively electrically connected to the two third electrical pins (C1, C2).

In the present embodiment, two pairs of electrical pins are respectively disposed in the first connector 102 and the second connector 103, and the two second electrical pins (B1, B2) are respectively electrically connected to the two third electrical pins (C1, C2) (for example, through the

internal wires

111 and 112, or the first connector 102 and the second connector 103 have a size enough to be inserted into the receiving space 1013 inside the body 101, so that no wires are required), so that two paths are formed between the first connector 102 and the second connector 103 for respectively electrically connecting to the power supply unit and the electronic component (for example, electrically connecting to the electronic component through the two first electrical pins (a1, a2), and electrically connecting to the power supply unit through the two fourth electrical pins (D1, D2), so that the power supply unit supplies power to the electronic component.

In an embodiment of the present application, the first electrical pin (a2) and the second electrical pin (B2) are connected by a wire and fixed on the first fixing seat 104, the third electrical pin (C2) and the fourth electrical pin (D2) are connected by a wire and fixed on the second fixing seat 105, when the female building block head 1012 of the building block 100 is plugged with the male building block head of another building block, the fourth electrical pin (D2) of the building block 100 contacts with the first electrical pin (a2) of another building block to form an electrical connection.

In an embodiment of the present application, as shown in fig. 1, the fixing device further includes a connecting sleeve 106 disposed in the accommodating space 1013 and used for connecting and fixing the first fixing seat 104 and the second fixing seat 105. The connection sleeve 106 may be provided with a connecting member or a fixing member, such as a clamping structure, to connect and fix the first fixing seat 104 and the second fixing seat 105 therein, or the clamping may be achieved only by the friction force between the outer edges of the first fixing seat 104 and the second fixing seat 105 and the inner wall of the connection sleeve 106.

With continued reference to FIG. 2A, which is a cross-sectional view of an embodiment of the building block of the present application, in an embodiment of the present application, the male building block head 304 includes an annular protrusion 3031 disposed at the periphery of the first opening 10111, the annular protrusion 3031 is adapted to be plugged into the female building block head of another building block, the first connector 102 is disposed in the annular protrusion 3031, and the top of the first connector 102 does not protrude from the top of the annular protrusion 3031. The shape of the male building block head 304 is not limited to an annular protrusion, but may be any other conventional male head structure.

With continued reference to fig. 2A, in an embodiment of the present application, the body 101 has an inner wall 1014 formed therein, the inner wall 1014 defines the receiving space 1013, the female block head 403 includes at least one protrusion (not shown) disposed on the inner wall 1014 and extending along the inner wall 1014, the male block head 304 is disposed on an outer surface of the body 101 and extends outwardly along the outer surface, and the male block head 304 has a peripheral dimension adapted to engage with the protrusion of the female block head 403. The shape of the female building block head 403 is not limited to a projection, but may also be any other existing female head structure.

Referring to fig. 2B and fig. 2C, which are a perspective view and a cross-sectional view of the connector inside the block body shown in fig. 2A, in an embodiment of the present invention, the third electrical pin (C1) and the fourth electrical pin (D1) form a first conductor 502 having a first groove 501, the first electrical pin (a1) and the second electrical pin (B1) form a first conductive protrusion 503, and the first conductive protrusion 503 is adapted to be inserted into the first groove of the first conductor of another block to form an electrical connection. The shapes of the first conductor 502 and the first conductive bump 503 are not limited to the shapes shown in fig. 2B, and may be any other shapes that satisfy the above-described characteristics.

In another embodiment of the present application, a first extending portion 1041 is disposed on the first fixing base 104, and extends from the first fixing base 104 to a direction away from the first fixing base 104 to form an upper surface (E), a first inner cavity 504 is formed inside the first extending portion 1041, the first conductive protrusion 503 is disposed in the first inner cavity 504, and a distance between an upper end of the first electrical pin (a1) and the upper surface (E) of the first extending portion 1041 is L, where L is greater than 0.

In this embodiment, the first conductor 502 and the first conductive protrusion 503 can be inserted between the first connector 102 and the second connector 103, so that the electrical connection between the first connector 102 and the second connector 103 is more secure.

Referring to fig. 3B and fig. 3C, which are a perspective view and a cross-sectional view of the connector inside the block body shown in fig. 3A, in another embodiment of the present application, the third electrical pin (C1) and the fourth electrical pin (D1) form a second conductive protrusion 601, the first electrical pin (a1) and the second electrical pin (B1) form a second conductor 603 of a second groove 602, and the second conductive protrusion 601 is used for being plugged into the second groove of the first conductor of another block to form an electrical connection.

Optionally, a second extension portion 1042 (i.e., a first extension portion 1041) is disposed on the first fixing base 104, and extends from the first fixing base 104 to a direction away from the first fixing base 104, a second inner cavity 1043 is formed inside the second extension portion 1042, and the second conductor 603 is disposed in the second inner cavity 1043; a third extending portion 1051 is disposed on the second fixing base 105, and extends from the second fixing base 105 to a direction away from the second fixing base 105, and a third inner cavity 1052 is formed inside the second fixing base 105; the third extension 1051 and the second extension 1042 are adapted, the second extension 1042 can be inserted into the third extension 1051, so that the third extension 1051 and the second extension 1042 are engaged with each other, and the second conductive protrusion 601 is inserted into the second groove 602, so that the first electrical pins (a1, a2) of the building block are electrically connected to the fourth electrical pins (D1, D2) of another building block, respectively.

In this embodiment, the first connector 102 and the second connector 103 can be connected to each other not only by plugging male building blocks and female building blocks of different building blocks, but also by plugging the second conductive protrusion 601 and the second conductive body 603, the first connector 102 and the second connector 103 can be connected more firmly. When the male building block head of the building block piece is plugged with the female building block head, the third extension 1051 and the second extension 1042 can be plugged with each other, and the first conductor 502 and the first conductive protrusion 503 are plugged with each other, so that the connection of the first connector 102 and the second connector 103 is protected firmly in multiple layers, and the connection is firmer and more reliable.

Referring to fig. 4B and 4C, which are a perspective view and a cross-sectional view of the connector inside the block body shown in fig. 4A, in another embodiment of the present application, the first electrical pin (a1) and the second electrical pin (B1) form a third conductor 701, the third electrical pin (C1) and the fourth electrical pin (D1) form a fourth conductor 702, and when the male plug is engaged with the female plug, the third conductor 701 and the fourth conductor 702 are in contact to form an electrical connection. In this embodiment, the first connector 102 and the second connector 103 can be connected to each other not only by plugging male building blocks of different building blocks into female building blocks, but also by contacting the third conductor 701 with the fourth conductor 702, the first connector 102 and the second connector 103 can be connected more firmly.

Optionally, a second extension portion 1042 (i.e., a first extension portion 1041) is disposed on the first fixing base 104, and extends from the first fixing base 104 to a direction away from the first fixing base 104, a second inner cavity 1043 is formed inside the second extension portion 1042, and the third conductor 701 is disposed in the second inner cavity 1043; a third extending portion 1051 is disposed on the second fixing base 105, and extends from the second fixing base 105 to a direction away from the second fixing base 105, and a third inner cavity 1052 is formed inside the second fixing base 105; the third extension 1051 and the second extension 1042 are adapted, the second extension 1042 can be inserted into the third extension 1051, so that the third extension 1051 and the second extension 1042 are engaged with each other, and the third conductor 701 can be inserted into the third cavity 1052, so that the first electrical pins (a1, a2) of the building block are electrically connected to the fourth electrical pins (D1, D2) of another building block, respectively.

When the male building block head of the building block piece is plugged with the female building block head, the third extension 1051 and the second extension 1042 can be plugged with each other, and the fourth conductor 702 and the third conductor 701 are contacted with each other, so that the connection of the first connector 102 and the second connector 103 is protected firmly in multiple layers, and the connection is firmer and more reliable. The fourth conductor 702 and the third conductor 701 may be formed in a T-shape, a square shape, a rectangular shape, or any other shape after contacting each other, and the fourth conductor 702 and the third conductor 701 may be designed in any shape.

Referring to fig. 7, which is a schematic view of another embodiment of the building block of the present application, in an embodiment of the present application, a third opening 113 is formed in a sidewall of the building block body 101, the third opening 113 is communicated with the accommodating space 1013, a switch button 114 is disposed in the third opening 113, and the switch button 114 is disposed between the first connector 102 and the second connector 103 and is used for electrically connecting or disconnecting the second electrical connectors (B1, B2) and the third electrical connectors (C1, C2). The switch button 114 may further have a button 115 disposed outside the third opening 113, when the button 115 is pressed, the button 115 presses the switch button 114 to electrically connect the second electrical connectors (B1, B2) and the third electrical connectors (C1, C2); when the button 115 is pressed again, the button 115 rebounds to the original state, and the switch button 114 disconnects the electrical connection between the second electrical connector (B1, B2) and the third electrical connector (C1, C2).

Optionally, a male block adapter 116 is disposed around the third opening 113 of the block body 101, and has the same size as the male block 1011 and the same direction as the male block 1011 and the female block 1012, and is adapted to be inserted into the female block of another block.

Optionally, the male building block adapter 116 includes an annular protrusion 1161 formed on a sidewall of the building block body 101, and the switch button 114 is disposed in the annular protrusion 1161, so that when the male building block adapter 116 is inserted into the female building block of another building block, the switch button 114 is not interfered.

The switch keys 114 and the buttons 115 may be of any other suitable design and are not limited to the above examples.

The design of the switch button 114 enables the building blocks to be disconnected when being spliced, and then the circuit is connected after the building blocks are spliced, and the safety of building the building blocks is further improved.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the embodiments of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. A building block element, comprising:

the building block male head is provided with a first opening, and an accommodating space is formed inside the building block piece and communicated with the first opening;

the first connector is arranged at the first opening;

the building block female head is provided with a second opening, and an accommodating space is formed inside the building block piece and communicated with the second opening;

a second connector disposed at the second opening;

the male building block head of the building block piece is suitable for being plugged with the female building block heads of other building block pieces so that the first connector arranged on the male building block head is electrically connected with the other building block pieces;

the female building block head of the building block piece is suitable for being plugged with the male building block heads of other building block pieces so that a second connector arranged on the female building block head is electrically connected with the other building block pieces;

the building block pieces are suitable for being spliced with other building block pieces with the male building block head and/or the female building block head to form building block piece building combination;

the first connector is provided with first electrical pins (A1, A2) and second electrical pins (B1, B2) which are respectively fixed on a first fixed seat, the second connector is provided with third electrical pins (C1, C2) and fourth electrical pins (D1, D2) which are respectively fixed on a second fixed seat, and the second electrical pins (B1, B2) are respectively electrically connected with the third electrical pins (C1, C2);

the first electrical pin (A1) and the second electrical pin (B1) form a third electrical conductor, the third electrical pin (C1) and the fourth electrical pin (D1) form a fourth electrical conductor, and when the male connector of the building block is jointed with the female connector of the building block, the third electrical conductor is contacted with the fourth electrical conductor to form an electrical connection; alternatively, the first and second electrodes may be,

the third electrical pin (C1) and the fourth electrical pin (D1) form a first conductor with a first groove, the first electrical pin (A1) and the second electrical pin (B1) form a first conductive protrusion, and the first conductive protrusion is suitable for being plugged into the first groove of the first conductor of another building block piece to form an electrical connection; alternatively, the first and second electrodes may be,

the third electrical pin (C1) and the fourth electrical pin (D1) form a second conductive bump, the first electrical pin (A1) and the second electrical pin (B1) form a second conductor of a second groove, and the second conductive bump is used for being spliced with the second groove of the first conductor of another building block piece to form electrical connection;

the side wall of the building block piece is provided with a third opening which is communicated with the accommodating space, a switch key is arranged in the third opening, and the switch key is arranged between the first connector and the second connector and is used for conducting or disconnecting the electrical connection between the second electrical pins (B1, B2) and the third electrical pins (C1, C2);

the switch key is provided with a button close to the outer side of the third opening, when the button is pressed down, the button presses the switch key to conduct the electrical connection between the second electrical pins (B1, B2) and the third electrical pins (C1, C2); when the button is pressed again, the button rebounds to the original state, and the switch key breaks the electrical connection between the second electrical pins (B1, B2) and the third electrical pins (C1, C2);

the first fixing seat is provided with a first extending part which extends from the first fixing seat to the direction far away from the first fixing seat, a first inner cavity is formed in the first extending part, and the first conductor/the second conductor are arranged in the first inner cavity;

2. The building block of claim 1, wherein the first fixing base has a first extension portion extending from the first fixing base in a direction away from the first fixing base to form an upper surface (E), and a first cavity is formed inside the first extension portion, the first conductive protrusion is disposed in the first cavity, and a distance between an upper end of the first electrical pin (a1) and the upper surface (E) of the first extension portion is L, where L > 0.

3. The building block piece as claimed in claim 1, wherein the first electrical pin (A2) and the second electrical pin (B2) are connected and fixed to the first fixing base by a wire, the third electrical pin (C2) and the fourth electrical pin (D2) are connected and fixed to the second fixing base by a wire, and when the female building block head of the building block piece is plugged with the male building block head of another building block piece, the fourth electrical pin (D2) of the building block piece is in contact with the first electrical pin (A2) of another building block piece to form an electrical connection.

4. The building block of claim 1 further comprising a connecting sleeve disposed in the receiving space for connecting and securing the first and second holders.

5. A building block element according to claim 1 wherein the periphery of the third opening of the block element is provided with a male building block adapter of the same size as the male building block head and oriented perpendicular to the male building block head and the female building block head, adapted to receive the female building block head of another block element.

6. A building block element according to claim 5 wherein the block interface male connector includes an annular projection on a side wall of the element, the switch button being located in the annular projection, the switch button not being interfered with when the block interface male connector is engaged with the female building block connector of another element.

7. A building block element according to claim 1 wherein the male building block head includes an annular projection at the periphery of the first opening, the annular projection being adapted to engage with the female building block head of another building block element, the first connector being located within the annular projection, the top of the first connector not protruding beyond the top of the annular projection.

8. A building block element according to claim 1 wherein the element has an internal wall defining the receiving space, the female head includes at least one projection extending from the internal wall, the male head is disposed on and extends outwardly from an outer surface of the element, and the male head has a periphery sized to engage the projection of the female head.