CN207474745U - terminal block - Google Patents

Abstract

The utility model is suitable for a connector technical field, the utility model provides a wiring terminal platform, this wiring terminal platform includes the terminal seat, the interval is provided with a plurality of cavitys and is linked together and a plurality of jacks that are linked together with each cavity one-to-one and are linked together with the cavity that corresponds on the terminal seat, data bus and each data separated time insert corresponding cavity from each jack respectively, the wiring terminal platform still includes a plurality ofly set up respectively in each cavity and electric connection's a plurality of metal shrapnels of each other and paste respectively and establish with the inner wall of each cavity and electric connection's a plurality of metal separation blades of each other, metal shrapnel's one end elasticity is supported to push away the one side of cavity inner wall and other end elasticity is supported and is pushed away metal separation blade and with data bus's wire or the wire centre gripping of data separated time between metal shrapnel and. The utility model provides a wiring terminal platform, its contact surface is bigger, can effectual reduction impedance value, has avoided the technical problem that wiring terminal platform generates heat in the course of the work.

Description

terminal block

technical field

The utility model belongs to the technical field of electrical connectors, in particular to a wiring terminal block.

Background technique

In power electronic distribution wiring, terminal blocks are often used for signal connection and transmission. It mainly connects a signal bus and multiple signal sub-lines together, so that the electrical signal in the signal bus can be transmitted to multiple signal lines. Sub-line. A general signal line includes an insulating skin and a metal wire wrapped in the insulating skin. There is a terminal block in the prior art, which includes a terminal base, and a plurality of cavities are arranged at intervals in the terminal base. The elastic copper sheets are electrically connected to each other, and the terminal base is also equipped with jacks that correspond to each cavity one by one and communicate with the corresponding cavity. The signal bus and each signal branch line can be inserted from each jack into the corresponding In the cavity, each elastic copper sheet is elastically compressed on the signal bus and each signal branch line. Since each elastic copper sheet is electrically connected to each other, the electrical signal on the signal bus can be transmitted to each signal branch line. However, such a compression method makes only one side of the metal wire in the signal line in contact with the elastic copper sheet, while the other side is against the inner wall of the cavity. This connection method makes the contact area between the elastic copper sheet and the metal wire Smaller, with higher impedance value, it will generate serious heat when the terminal block is working.

Utility model content

The purpose of the utility model is to provide a terminal block, aiming at solving the technical problem of serious heating of the terminal block in the prior art.

The utility model is realized in the following way. A terminal block is used to electrically connect the data bus with at least one data branch line. cavities and a plurality of jacks that communicate with the external space and correspond to each of the cavities one by one and communicate with the corresponding cavities. The holes are inserted into the corresponding cavities, and the terminal block also includes a plurality of metal shrapnels respectively arranged in each of the cavities and electrically connected to each other, and respectively attached to the inner walls of each of the cavities and A plurality of metal baffles electrically connected to each other, one end of the metal shrapnel elastically pushes against one side of the inner wall of the cavity and the other end elastically pushes against the metal baffle and the metal wire of the data bus or the The metal wire of the data branch line is clamped between the metal shrapnel and the metal blocking piece.

Further, the metal shrapnel is in the shape of a "V", and the metal shrapnel includes a first vane that elastically pushes against the inner wall of the cavity and is elastically connected to a side of the first vane that is close to the insertion hole and The second vane elastically resists the metal blocking piece.

Further, the opening of each of the sockets facing the cavity is opposite to the end of the second leaf plate close to the metal baffle, and the terminal base is also equipped with a The cavities are one-to-one corresponding to a plurality of pin holes that communicate with the corresponding cavities. The pin holes are located on the side of the second leaf plate facing away from the first leaf plate and are used for insertion. The needle inserts and pushes the second leaf plate to separate the second leaf plate from the metal blocking piece.

Further, the inner wall of the cavity is provided with a resisting beam, and the side of the second leaf plate close to the resisting beam is provided with a gap across the resisting beam, and the width of the gap is larger than that of the resisting beam. Width, the resisting beam is used to resist the second vane to prevent plastic deformation of the metal shrapnel.

Further, the terminal base includes a shell provided with a cavity, a cover plate covering the opening of the cavity and fixedly connected with the shell, and spaced in the cavity and dividing the cavity into A plurality of baffles of the cavity, each of the baffles is located between adjacent metal shrapnels.

Further, the connection terminal block further includes a plurality of metal connection plates arranged at an end of the adjacent metal elastic pieces close to the cover plate and connecting the adjacent metal elastic pieces.

Further, each of the metal elastic pieces and each of the metal connection plates are connected by integral molding.

Further, a side of the adjacent metal elastic sheet facing the partition is provided with a barb that is clamped on the side wall of the partition.

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

Further, a connecting hole is provided on the end face of each partition facing the cover plate, and a connecting column inserted into the connecting hole is provided on the side of the cover plate facing the partition, and the connecting column is connected to the connecting hole. Hole interference fit.

Compared with the prior art, the technical effect of the utility model is: the wiring terminal block provided by the utility model includes a terminal base and a plurality of metal shrapnels and a plurality of metal retaining pieces arranged in the terminal base, each metal shrapnel is electrically connected, each The metal baffle is also electrically connected. The signal bus can be inserted from any jack, and each signal branch can be inserted from the rest of the jacks. After the metal shrapnel and the metal baffle compress the signal bus and the metal wire in the signal branch , that is, the electrical signal of the signal bus can be conducted to the signal branch. In the terminal block provided by the utility model, a metal retainer is added in the cavity, and the metal shrapnel and the metal retainer compress the metal wire from both sides. Larger, can effectively reduce the impedance value, and avoid the technical problem of the terminal block heating during operation.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following will briefly introduce the accompanying drawings that need to be used in the embodiments of the utility model or the description of the prior art. Obviously, the accompanying drawings described below are only the present invention. For some embodiments of the utility model, those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a perspective view of a connection terminal provided by an embodiment of the present invention;

Fig. 2 is an exploded view of the terminal provided by the embodiment of the present invention;

Fig. 3 is an exploded view of the terminal provided by the embodiment of the present invention;

Fig. 4 is a cross-sectional view of the terminal provided by the embodiment of the present invention;

Fig. 5 is a cross-sectional view of the terminal provided by the embodiment of the present invention;

Fig. 6 is a perspective view of the metal baffle provided by the embodiment of the present invention;

Fig. 7 is a perspective view of the metal shrapnel provided by the embodiment of the present invention;

Fig. 8 is a perspective view of the housing provided by the embodiment of the present invention.

Explanation of reference signs:

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that when an element is referred to as being “fixed” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. 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 is to be understood that the terms "length", "width", "top", "bottom", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inner", "outer" and other indicated orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying No device or element must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present utility model, "plurality" means two or more, unless otherwise specifically defined.

Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments.

Referring to Fig. 1 to Fig. 3, the connection terminal block provided by the embodiment of the present invention is used to electrically connect a data bus (not shown) and at least one data branch line (not shown), and the connection terminal The platform includes a terminal base 10, on which a plurality of cavities 11 are arranged at intervals, and a plurality of cavities 11 communicated with the external space and corresponding to each of the cavities 11 and communicated with the corresponding cavities 11. Jacks 12, the data bus and each of the data branch lines are respectively inserted into the corresponding cavities 11 from each of the jacks 12, and the terminal block also includes a plurality of sockets that are respectively arranged in each of the cavities. 11 and a plurality of metal domes 20 that are electrically connected to each other and a plurality of metal retaining pieces 30 that are respectively attached to the inner walls of each cavity 11 and are electrically connected to each other. One end of the metal dome 20 elastically pushes against the One side and the other end of the inner wall of the cavity 11 elastically push against the metal baffle 30 and clamp the wire of the data bus or the wire of the data branch between the metal dome 20 and the metal Between the baffles 30. It should be noted that the electrical connection of each of the metal springs 20 can be connected by a wire or by a metal sheet; the electrical connection of each of the metal retaining pieces 30 can be connected by a wire or by a metal sheet Connection, but not limited thereto, the structure of the data bus and the data branch line is the same as that of the wire in the prior art, that is, it includes an insulation and a metal wire wrapped in the insulation.

Referring to Fig. 1 to Fig. 3, the wiring terminal block provided by the embodiment of the present invention includes a terminal base 10 and a plurality of metal domes 20 and a plurality of metal retaining pieces 30 arranged in the terminal base 10, and each metal dome 20 is electrically connected , each metal stopper 30 is also electrically connected, the signal bus can be inserted from any jack 12 and enter the corresponding cavity 11, each signal branch line can be inserted from the remaining jacks 12 and enter the corresponding cavity 11, and then That is, the metal shrapnel 20 and the metal retaining piece 30 can be used to compress the metal wires in the signal bus and the signal sub-lines, so as to realize the transmission of the electrical signal of the signal bus to multiple signal sub-lines. In the terminal block provided by the embodiment of the utility model, a metal retainer 30 is added in the cavity 11, and the metal shrapnel 20 and the metal retainer 30 compress the metal wire from both sides, compared with only using the metal shrapnel 20 to press from one side. In short, the pressing contact surface on both sides is larger, which can effectively reduce the impedance value and avoid the heating of the terminal block during operation.

Please refer to Fig. 1 to Fig. 3, further, the metal dome 20 is in a "V" shape, and the metal dome 20 includes a first vane 21 that elastically pushes against the inner wall of the cavity 11 and is connected with the first vane. A side of the board 21 close to the insertion hole 12 is elastically connected and elastically pushes against the second blade 22 of the metal blocking piece 30 . In the embodiment of the present invention, the metal elastic sheet 20 is arranged in a "V"-shaped structure, so that it has its own elasticity, simple structure and low manufacturing cost.

Please refer to Figures 1 to 3. In the actual wiring process, it often happens that due to the excessive elasticity of the metal shrapnel 20, after some soft metal wires are inserted from the jack 12, the second blade cannot be inserted by its own strength. The plate 22 is pushed away from the metal baffle 30 to be clamped between the second vane 22 and the metal baffle 30, therefore, further, each of the insertion holes 12 faces the opening of the cavity 11 and the second leaf The end of the plate 22 close to the metal baffle 30 is opposite, and the terminal base 10 is also provided with a socket that communicates with the external space and corresponds to each of the cavities 11 one by one and communicates with the corresponding cavity 11. A plurality of pin holes 13, the pin holes 13 are located on the side of the second blade 22 facing away from the first blade 21 and are used for inserting pins and pushing the second blade 22 In order to separate the second vane 22 from the metal blocking piece 30 . Specifically, when the metal wire inside the data bus or data branch line is soft, a tool pin can be used to insert the pin hole 13 into the cavity 11 and push the second leaf plate 22 so that the end of the second leaf plate 22 The part is separated from the metal baffle 30, and then the data bus or data branch line is inserted into the jack 12, so that its metal wire is located between the second blade 22 and the metal baffle 30, and then the pin is pulled out, and the metal dome 20 is reset. That is, the metal wire is clamped between the second blade 22 and the metal retaining piece 30 to complete the connection. The embodiment of the utility model can realize the plug-in connection of some data lines with relatively soft metal wires, and has a wider application range.

Please refer to Fig. 2 to Fig. 8, in order to prevent the metal shrapnel 20 from being unable to rebound due to excessive force when the pin pushes the second blade 22, further, the inner wall of the cavity 11 is provided with a resisting beam 14, so The side of the second leaf plate 22 close to the resisting beam 14 is provided with a notch 24 across the resisting beam 14, the width of the notch 24 is larger than the width of the resisting beam 14, and the resisting beam 14 is used for The second vane 22 is resisted to prevent plastic deformation of the metal dome 20 . The deformation of the metal shrapnel 20 is limited by the resisting beam 14. Specifically, after pushing the second leaf plate 22 to a certain stroke with the pin, the second leaf plate 22 will resist on the resisting beam 14 and cannot continue to increase. Large deformation, therefore, effectively avoids the problem that the metal dome 20 is plastically deformed and unable to rebound.

1 to 3, further, the terminal block 10 includes a housing 15 with a cavity, a cover plate 16 that covers the opening of the cavity and is fixedly connected with the housing 15, and is arranged at intervals. A partition 17 inside the cavity and divides the cavity into a plurality of cavities 11 , each partition 17 is located between adjacent metal domes 20 .

Referring to FIG. 7 , further, the terminal block further includes a plurality of metal connection plates 40 disposed at an end of the adjacent metal elastic pieces 20 close to the cover plate 16 and connecting the adjacent metal elastic pieces 20 . The embodiment of the utility model electrically connects the metal elastic pieces 20 through the metal connecting plate 40, and the metal connecting plate 40 can not only play the role of electrically connecting the metal elastic pieces 20, but also maintain the relative position of each metal elastic piece 20, which can It is avoided that the position of each metal dome 20 in the terminal base 10 is messy, resulting in poor contact.

Please refer to FIG. 2 to FIG. 8 , further, each of the metal elastic pieces 20 and each of the metal connection plates 40 are connected by integral molding. Specifically, by punching and forming, a plurality of metal elastic pieces 20 and metal connection plates 40 connected to each metal elastic piece 20 can be punched and formed at one time, thereby improving production efficiency. Moreover, this structure can greatly improve the assembly efficiency. Specifically, during assembly, all the metal domes 20 can be manually aligned with the openings of each cavity at one time, and then pushed inward, so that all the metal domes 20 can be put together at one time. Install it into the corresponding cavity.

Referring to FIG. 7 , further, a barb 23 clamped on the side wall of the partition 17 is provided adjacent to the side of the metal dome 20 facing the partition 17 . It can be understood that after each metal dome 20 is installed in each cavity, the partition plate 17 is clamped between the adjacent metal dome 20 , and the embodiment of the utility model provides a barb 23 on the side of the metal dome 20 , so that after the metal dome 20 is installed, it will not be separated from the terminal base 10, and will not move relative to the terminal base 10, which improves the reliability of the connection between the metal wire and the metal dome 20 and the metal retaining piece 30.

Referring to FIG. 8 , further, a slot 18 for inserting the metal connecting plate 40 is provided on the side of the partition plate 17 close to the cover plate 16 . By inserting the metal connecting plate 40 into the slot 18 , each metal dome 20 can be further fixed.

Please refer to FIG. 1 , further, each partition 17 is provided with a connecting hole 171 on the end surface facing the cover 16, and the side of the cover 16 facing the partition 17 is provided with the connecting hole 171 of the connecting post 161, the connecting post 161 and the connecting hole 171 interference fit. Based on this structure, when assembling the cover plate 16 and the terminal block provided by the present invention, the assembly can be completed manually without relying on any tools.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (10)

1. A terminal block, used to electrically connect a data bus to at least one data branch line, the terminal block includes a terminal base, and the terminal base is provided with a plurality of cavities at intervals and connected to the external space through a plurality of jacks that correspond one-to-one to each of the cavities and communicate with the corresponding cavities, and the data bus and each of the data branch lines are respectively inserted from each of the jacks into the corresponding cavities, and the terminal block further includes a plurality of metal shrapnels respectively arranged in each of the cavities and electrically connected to each other, and a plurality of metal shrapnels respectively attached to the inner walls of each of the cavities and electrically connected to each other. One end of the metal shrapnel elastically pushes against one side of the inner wall of the cavity and the other end elastically pushes against the metal shim and the metal wire of the data bus or the metal of the data branch line The wire is clamped between the metal shrapnel and the metal blocking piece. 2. The wiring terminal block according to claim 1, wherein the metal elastic sheet is in a "V" shape, and the metal elastic sheet includes a first leaf plate that elastically pushes against the inner wall of the cavity and is connected to the second blade. A leaf plate is elastically connected to a side close to the insertion hole and elastically pushes against the second leaf plate of the metal blocking piece. 3. The wiring terminal block according to claim 2, wherein the opening of each of the jacks facing the cavity is opposite to the end of the second leaf plate close to the metal retaining piece, and the terminal block There are also a plurality of pin holes that communicate with the external space and correspond to each of the cavities one by one and communicate with the corresponding cavities. The pin holes are located on the back side of the second blade. One side of the first blade is used for inserting pins and pushing the second blade so that the second blade is separated from the metal blocking piece. 4. The terminal block according to claim 3, wherein a resisting beam is provided on the inner wall of the cavity, and a side of the second leaf plate close to the resisting beam is provided across the resisting beam. The width of the notch is greater than the width of the resisting beam, and the resisting beam is used to resist the second leaf plate to prevent plastic deformation of the metal elastic sheet. 5. The wiring terminal block according to claim 1, wherein the terminal base comprises a housing with a cavity, a cover plate covering the opening of the cavity and fixedly connected with the housing, and a spacer The partitions are arranged in the cavity and divide the cavity into a plurality of cavities, and each partition is located between adjacent metal elastic pieces. 6. The connection terminal block according to claim 5, wherein the connection terminal block further comprises a plurality of metal springs arranged at one end of the adjacent metal elastic sheets close to the cover plate and connecting the adjacent metal elastic sheets. a metal connecting plate. 7 . The terminal block according to claim 6 , wherein each of the metal elastic pieces and each of the metal connection plates are connected by integral molding. 8 . 8 . The terminal block according to claim 6 , wherein a side of the adjacent metal elastic sheet facing the partition is provided with a barb that is clamped on the side wall of the partition. 9 . 9 . The terminal block according to claim 6 , wherein a slot for inserting the metal connection plate is provided on a side of the partition plate close to the cover plate. 10 . 10. The wiring terminal block according to claim 5, wherein a connection hole is provided on the end surface of each partition facing the cover plate, and an insertion hole is provided on the side of the cover plate facing the partition plate. The connecting column of the connecting hole, the connecting column is interference fit with the connecting hole.