WO2019085643A1

WO2019085643A1 - Wiring terminal block

Info

Publication number: WO2019085643A1
Application number: PCT/CN2018/104506
Authority: WO
Inventors: 赖柄文
Original assignee: 中山市展颢电子有限公司
Priority date: 2017-11-02
Filing date: 2018-09-07
Publication date: 2019-05-09
Also published as: CN109755787A

Abstract

Provided is a wiring terminal block, comprising a terminal base (10), wherein the terminal base (10) is provided with multiple cavities (11) spaced apart from each other and multiple jacks (12) in communication with the external space and in communication with the cavities (11) on a one-to-one basis, and a power source data bus and power source data branches are respectively inserted into the corresponding cavities (11) via the jacks (12). The wiring terminal block further comprises multiple metal elastic pieces (20) respectively provided in the cavities (11) and electrically connected with each other and multiple metal block pieces (30) respectively adhered to inner walls of the cavities (11) and electrically connected with each other, wherein one end of a metal elastic piece (20) elastically pushes against one side of the inner wall of a cavity (11), and the other end thereof elastically pushes against the metal block piece (30), and a metal wire of the power source data bus or a metal wire of the power source data branch is clamped between the metal elastic piece (20) and the metal block piece (30). The wiring terminal block has an enlarged contact surface so as to effectively reduce an impedance value and avoid the technical problem of a wiring terminal block generating heat when working.

Description

Terminal block

Technical field

The present application belongs to the technical field of electrical connectors, and in particular, to a terminal block.

Background technique

In the power electronic distribution line, the terminal block used for power supply or signal connection and transmission is commonly used, which mainly connects a power source or a signal bus and a plurality of power sources or signal lines to make a power or signal bus. The electrical power or signal can be passed to multiple power supplies or signal distribution lines. A general power source or signal line includes an insulating sheath and a wire wrapped in the insulating sheath. In the prior art, there is a terminal block including a terminal block, and a plurality of cavities are disposed in the terminal block, and each cavity is disposed in each cavity. An elastic copper piece electrically connected to each other is disposed, and the terminal block is further provided with a socket corresponding to each cavity and communicating with the corresponding cavity, and the power source or the signal bus and each power source or signal line can be separated from each The jack is inserted into the corresponding cavity, and then each elastic copper piece is elastically pressed on the power source or the signal bus and each power source or signal line. Since the elastic copper pieces are electrically connected to each other, the power source or the signal bus can be connected. The electrical power or signal on it is transmitted to each power supply or signal distribution. However, such a pressing method is such that only one side of the wire in the power source or signal line is in contact with the elastic copper piece, and the other side is abutted against the inner wall of the cavity, and the connection manner is such that the elastic copper piece and the wire are The contact area is small, the impedance value is high, and heat is generated during the operation of the terminal block.

technical problem

The purpose of the embodiment of the present application is to provide a terminal block, which aims to solve the technical problem that the terminal block in the prior art has a serious heat generation.

Technical solution

To solve the above technical problem, the technical solution adopted by the embodiment of the present application is:

A terminal block is provided for electrically connecting a power data bus and at least one power data line, the terminal block comprising a terminal block, the terminal block being spaced apart from the plurality of cavities and externally a plurality of jacks that are in spatial communication and are in one-to-one correspondence with the cavities and are in communication with the corresponding cavities, and the power data bus and each of the power data splits are respectively inserted from the jacks Corresponding to the cavity, the terminal block further includes a plurality of metal elastic pieces respectively disposed in each of the cavities and electrically connected to each other, and respectively attached to inner walls of each of the cavities and electrically connected to each other a plurality of metal baffles connected to each other, one end of the metal elastic piece elastically pushing against one side and the other end of the inner wall of the cavity to elastically push the metal baffle and the wire of the power data bus or the A wire of the power data dividing line is sandwiched between the metal dome and the metal blank.

Further, the metal dome has a "V" shape, and the metal dome includes a first blade elastically biased against the inner wall of the cavity and elastically connected to a side of the first blade adjacent to the insertion hole and The second leaf of the metal flap is elastically pushed against.

Further, an opening of each of the insertion holes facing the cavity is opposite to an end of the second blade adjacent to the metal fence, and the terminal block is further provided with an external space and each of the a plurality of pin holes corresponding to the cavity and corresponding to the cavity, the pin holes being located on a side of the second blade facing away from the first blade and for inserting A needle is inserted and pushed against the second blade to separate the second blade from the metal blade.

Further, an inner wall of the cavity is provided with a resisting beam, and a side of the second blade adjacent to the resisting beam is provided with a notch across the resisting beam, and the width of the notch is larger than that of the resisting beam Width, the resisting beam is configured to resist the second blade to prevent plastic deformation of the metal dome.

Further, the terminal block includes a housing provided with a cavity, a cover plate that is fixed to the opening of the cavity and fixedly connected to the housing, and is spaced apart from the cavity and separates the cavity into a plurality of partitions of the cavity, each of the partitions being located between adjacent metal domes.

Further, the terminal block further includes a plurality of metal connecting plates disposed adjacent to one end of the metal dome adjacent to the cover plate and connecting adjacent metal domes.

Further, each of the metal domes and each of the metal connecting plates are integrally connected.

Further, a side of the metal elastic piece adjacent to the partition plate is provided with a barb that is held by the side wall of the partition plate.

Further, a side of the partition plate adjacent to the cover plate is provided with a slot for inserting the metal connecting plate.

Further, a connecting hole is formed on an end surface of each of the partition plates facing the cover plate, and a connecting post of the cover plate facing the partition plate is provided with a connecting post inserted into the connecting hole, and the connecting post and the connecting rod are connected The hole is over-matched.

Beneficial effect

Compared with the prior art, the utility model has the beneficial effects that the terminal block provided by the present application comprises a terminal block and a plurality of metal elastic pieces and a plurality of metal baffles disposed in the terminal block, the metal elastic pieces are electrically connected, and each metal The blank is also electrically connected. The power or signal bus can be inserted from any one of the jacks. Each power or signal split can be inserted from the remaining jacks. Metal shrapnel and metal blanks separate the power or signal bus from the power or signal. After the wire inside is pressed, the power or signal of the power supply or signal bus can be transmitted to the power supply or signal distribution. The terminal block provided by the present application adds a metal baffle in the cavity, and the metal shrapnel and the metal baffle press the wire from both sides, and the contact surface is more pressed than the metal shrapnel is pressed from one side. Large, can effectively reduce the impedance value, avoiding the technical problem of the terminal block heating during operation.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings to be used in the embodiments of the present application or the description of the prior art will be briefly described below. Obviously, the drawings described below are only the present application. For some embodiments, other drawings may be obtained from those of ordinary skill in the art without departing from the drawings.

1 is a perspective view of a terminal provided by an embodiment of the present application;

2 is an exploded view of a terminal provided by an embodiment of the present application;

3 is an exploded view of a terminal provided by an embodiment of the present application;

4 is a cross-sectional view of a terminal provided by an embodiment of the present application;

5 is a cross-sectional view of a terminal provided by an embodiment of the present application;

6 is a perspective view of a metal baffle provided by an embodiment of the present application;

7 is a perspective view of a metal dome provided by an embodiment of the present application;

FIG. 8 is a perspective view of a housing provided by an embodiment of the present application.

Description of the reference signs:

10 10	端子座 Terminal Block	171 171	连接孔 Connection hole
11 11	空腔 Cavity	18 18	插槽 Slot
12 12	插孔 Jack	20 20	金属弹片 Metal shrapnel
13 13	插针孔 Pin hole	21 twenty one	第一叶板 First leaf
14 14	抵挡梁 Resisting beam	22 twenty two	第二叶板 Second leaf
15 15	外壳 Shell	23 twenty three	倒刺 Barbed
16 16	盖板 Cover	24 twenty four	缺口 Gap
161 161	连接柱 Connecting column	30 30	金属挡片 Metal flap
17 17	隔板 Partition	40 40	金属连接板 Metal connection plate

Embodiments of the invention

The embodiments of the present application are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are intended to be illustrative, and are not to be construed as limiting.

In the description of the present application, it is to be noted that when an element is referred to as being "fixed" or "in" another element, it may be directly on the other element or indirectly. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or indirectly connected to the other element.

It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top" The orientation or positional relationship of the "bottom", "inside", "outside" and the like is based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present application and simplified description, and does not indicate or imply the indicated device. Or the components must have a particular orientation, constructed and operated in a particular orientation, and thus are not to be construed as limiting.

Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may include one or more of the features either explicitly or implicitly. In the description of the present application, the meaning of "a plurality" is two or more unless specifically and specifically defined otherwise.

For those skilled in the art, the specific meanings of the above terms in the present application can be understood on a case-by-case basis.

In order to make the objects, technical solutions, and advantages of the present application more comprehensible, the present application will be further described in detail below with reference to the accompanying drawings and embodiments.

Referring to FIG. 1 to FIG. 3 , the terminal block provided in the embodiment of the present application is used for electrically connecting a power data bus (not shown) and at least one power data dividing line (not shown). The terminal block includes a terminal block 10, and the terminal block 10 is spaced apart from the plurality of cavities 11 and communicates with the external space and is in one-to-one correspondence with each of the cavities 11 and communicates with the corresponding cavity 11. a plurality of jacks 12, the power data bus and each of the power data lines are respectively inserted into the corresponding cavity 11 from each of the jacks 12, and the terminal block further includes a plurality of respectively disposed in each of the jacks a plurality of metal elastic pieces 20 in the cavity 11 and electrically connected to each other, and a plurality of metal blocking pieces 30 respectively attached to the inner walls of the cavities 11 and electrically connected to each other, and one end of the metal elastic piece 20 is elastic Pulling one side and the other end of the inner wall of the cavity 11 elastically against the metal blocking piece 30 and clamping the wire of the power data bus or the wire of the power data data to the metal dome 20 and the metal blank 30. It should be noted that the manner in which the metal domes 20 are electrically connected may be connected by wires or by metal sheets; the manner in which the metal strips 30 are electrically connected may be connected by wires or through metal sheets. The connection, but not limited to, the structure of the power data bus and the power data line is the same as that of the prior art, that is, the insulation and the wire wrapped in the insulation.

Referring to FIG. 1 to FIG. 3 , the terminal block provided by the embodiment of the present invention includes a terminal block 10 , a plurality of metal elastic pieces 20 disposed in the terminal block 10 , and a plurality of metal baffles 30 , and the metal elastic pieces 20 are electrically connected. The metal strips 30 are also electrically connected, and a power or signal bus can be inserted from any one of the jacks 12 into the corresponding cavity 11, and each power source or signal line can be inserted from the remaining jacks 12 into the corresponding cavity. 11, then the metal shrapnel 20 and the metal baffle 30 can be used to compress the power supply or the signal bus and the wire in the power supply or signal distribution line, thereby realizing the electrical power or signal of the power supply or signal bus to multiple power sources or signals. Sub-line. The terminal block provided in the embodiment of the present application adds a metal baffle 30 in the cavity 11. The metal elastic piece 20 and the metal baffle 30 press the wire from both sides, and are pressed from one side with respect to only the metal elastic piece 20. In other words, the pressing contact surfaces on both sides are larger, which can effectively reduce the impedance value and avoid the heat generation of the terminal block during operation.

Referring to FIG. 1 to FIG. 3, further, the metal dome 20 has a "V" shape, and the metal dome 20 includes a first blade 21 elastically biasing against an inner wall of the cavity 11 and the first leaf. The side of the plate 21 adjacent to the insertion hole 12 is elastically coupled and elastically urges against the second blade 22 of the metal fence 30. In the embodiment of the present application, the metal dome 20 is set to a "V" type structure, so that the self-belt is elastic, the structure is simple, and the manufacturing cost is low.

Referring to FIG. 1 to FIG. 3, in the actual wiring process, it is often found that due to the excessive elasticity of the metal dome 20, some softer wires are inserted from the socket 12, and the second leaf cannot be used by its own strength. The plate 22 is pushed away from the metal fence 30 to be sandwiched between the second blade 22 and the metal fence 30. Therefore, further, each of the insertion holes 12 faces the opening of the cavity 11 and the second blade The plate 22 is opposite to one end of the metal blocking piece 30. The terminal block 10 is further provided with an external space and is in one-to-one correspondence with each of the cavities 11 and communicates with the corresponding cavity 11. a plurality of pin holes 13 located on a side of the second blade 22 facing away from the first blade 21 and for inserting and pushing the second blade 22 The second blade 22 is separated from the metal fence 30. Specifically, when the wire inside the power data bus or the power data dividing line is soft, the tool pin can be inserted into the cavity 11 from the pin hole 13 and the second blade 22 can be pushed up, so that the second blade 22 is The end is separated from the metal blank 30, and then the power data bus or the power data split is inserted into the jack 12 such that its wire is located between the second blade 22 and the metal fence 30, and then the pin is removed, the metal The spring 20 is reset, and the wire is clamped between the second blade 22 and the metal fence 30 to complete the connection. The embodiment of the present application can realize the plug connection of some soft power data lines of the wire, and the application range is wider.

Referring to FIG. 2 to FIG. 8 , in order to prevent the metal dome 20 from rebounding due to excessive force when pushing the second blade 22 , the inner wall of the cavity 11 is provided with a resisting beam 14 . A side of the second blade 22 adjacent to the resisting beam 14 is provided with a notch 24 spanning the resisting beam 14. The width of the notch 24 is greater than the width of the resisting beam 14, and the resisting beam 14 is used for The second blade 22 is resisted to prevent plastic deformation of the metal dome 20. The deformation of the metal dome 20 is restricted by resisting the beam 14. Specifically, after the second blade 22 is pushed up by the pin to a certain stroke, the second blade 22 will resist against the resisting beam 14, so that it cannot continue to increase. The large shape variable, therefore, effectively avoids the problem that the metal dome 20 is plastically deformed and cannot rebound.

Referring to FIG. 1 to FIG. 3 , the terminal block 10 further includes a housing 15 provided with a cavity, a cover plate 16 disposed on the opening of the cavity and fixedly connected to the housing 15 , and spaced apart from The cavity is partitioned into a plurality of partitions 17 of the cavity 11 , and each of the partitions 17 is located between adjacent metal domes 20 .

Referring to FIG. 7 , the terminal block further includes a plurality of metal connecting plates 40 disposed adjacent to one end of the metal dome 20 adjacent to the cover plate 16 and connecting the adjacent metal domes 20 . In the embodiment of the present application, the metal elastic pieces 20 are electrically connected through the metal connecting plate 40. The metal connecting plate 40 can not only serve to electrically connect the metal elastic pieces 20, but also maintain the relative positions of the metal elastic pieces 20, thereby avoiding The position of each of the metal domes 20 in the terminal block 10 is messy, resulting in poor contact.

Referring to FIG. 2 to FIG. 8 , further, each of the metal domes 20 and each of the metal connecting plates 40 are integrally connected. Specifically, by using die cutting, a plurality of metal domes 20 and a metal connecting plate 40 connected to each of the metal domes 20 can be die-cut at one time to improve production efficiency. Moreover, with this structure, the assembly efficiency can be greatly improved. Specifically, when assembling, all the metal domes 20 can be manually aligned at one time to the openings of the respective cavities, and then pushed inwardly, and all the metal domes 20 can be removed at one time. Installed into the corresponding cavity.

Referring to FIG. 7, further, a side of the metal elastic piece 20 facing the partition plate 17 is provided with a barb 23 that is held by the side wall of the partition plate 17. It is to be understood that, after the metal domes 20 are mounted in the respective cavities, the spacers 17 are held between the adjacent metal domes 20, and the barbs 23 are disposed on the side of the metal domes 20 in the embodiment of the present application. After the metal dome 20 is mounted, the terminal block 10 is not detached from the terminal block 10, and the terminal block 10 is not moved, thereby improving the reliability of the connection of the metal wire to the metal dome 20 and the metal spacer 30.

Referring to FIG. 8, further, a side of the partition plate 17 adjacent to the cover plate 16 is provided with a slot 18 for insertion of the metal connecting plate 40. Each of the metal domes 20 can be further fixed by inserting the metal connecting plate 40 into the slot 18.

Referring to FIG. 1 , further, a connecting hole 171 is defined on an end surface of each of the partition plates 17 facing the cover plate 16 , and a side of the cover plate 16 facing the partition plate 17 is inserted into the connecting hole. The connecting post 161 of the 171 is in an interference fit with the connecting hole 171. Based on this structure, the terminal block provided by the present application can be completely manual and can be assembled without any tools, when assembling the cover plate 16.

The above is only the preferred embodiment of the present application, and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection of the present application. Within the scope.

Claims

A terminal block for electrically connecting a power data bus and at least one power data line, the terminal block comprising a terminal block, the terminal block being spaced apart from the plurality of cavities and connected to the external space And a plurality of jacks corresponding to the cavities and communicating with the corresponding cavities, wherein the power data bus and each of the power data lines are respectively inserted from the jacks In the cavity, the terminal block further includes a plurality of metal elastic pieces respectively disposed in each of the cavities and electrically connected to each other, and respectively attached to inner walls of each of the cavities and electrically connected to each other a plurality of metal baffles, one end of the metal elastic piece elastically resisting one side and the other end of the inner wall of the cavity elastically resisting the metal baffle and the wire of the power data bus or the power source data A wire of the split wire is sandwiched between the metal dome and the metal shield.
The terminal block according to claim 1, wherein said metal dome has a "V" shape, and said metal dome includes a first blade elastically biasing against an inner wall of said cavity and said first leaf The side of the plate adjacent to the receptacle is resiliently coupled and resiliently urges against the second blade of the metal fence.
The terminal block according to claim 2, wherein an opening of each of said insertion holes facing said cavity is opposite to an end of said second blade adjacent said metal fence, said terminal block further Providing a plurality of pin holes communicating with the outer space and corresponding to the cavities and communicating with the corresponding cavities, the pin holes being located at the second leaf plate facing away from the One side of the first blade and for inserting and pushing the second blade to separate the second blade from the metal blade.
The terminal block according to claim 3, wherein an inner wall of the cavity is provided with a resisting beam, and a side of the second blade adjacent to the resisting beam is provided with a gap across the resisting beam The width of the notch is larger than the width of the resisting beam, and the resisting beam is configured to resist the second blade to prevent plastic deformation of the metal dome.
The terminal block according to claim 1, wherein the terminal block comprises a casing provided with a cavity, a cover plate that is fixed to the opening of the cavity and fixedly connected to the casing, and is spaced apart from The cavity is partitioned into a plurality of partitions of the cavity, and each of the partitions is located between adjacent metal domes.
The terminal block according to claim 5, wherein the terminal block further comprises a plurality of metal disposed adjacent to one end of the metal dome adjacent to the cover and connecting adjacent metal domes Connection plate.
The terminal block according to claim 6, wherein each of said metal domes and said metal connecting plates are integrally formed.
The terminal block according to claim 6, wherein a side of the metal elastic piece facing the partition is provided with a barb that is held by the side wall of the partition.
The terminal block according to claim 6, wherein a side of said partition adjacent to said cover is provided with a slot into which said metal connecting plate is inserted.
The terminal block according to claim 5, wherein each of the partition plates is provided with a connecting hole on an end surface of the cover plate, and a side of the cover plate facing the partition plate is provided with the inserting A connecting post of the connecting hole, the connecting post and the connecting hole are interference fit.