CN215816695U - Butt joint with lightning protection function - Google Patents
Butt joint with lightning protection function Download PDFInfo
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- CN215816695U CN215816695U CN202122055015.6U CN202122055015U CN215816695U CN 215816695 U CN215816695 U CN 215816695U CN 202122055015 U CN202122055015 U CN 202122055015U CN 215816695 U CN215816695 U CN 215816695U
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- terminals
- terminal
- discharge tube
- circuit board
- insulating body
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Abstract
The utility model discloses a butt joint with a lightning protection function, which comprises an insulating body, a shielding shell, a circuit board, a plurality of first terminal groups and a plurality of second terminal groups, wherein the insulating body is provided with a plurality of first terminals; the circuit board is provided with a plurality of voltage-stabilizing tubes, a plurality of autotransformers and a discharge tube, one end of the discharge tube is connected with a grounding terminal, and the other end of the discharge tube is connected with a center tap of the autotransformers; each first terminal group is composed of two first terminals, the two first terminals are respectively connected with two ends of the corresponding voltage-stabilizing tube in a conduction mode, and the two first terminals are respectively connected with two ends of the corresponding autotransformer in a conduction mode. Through parallelly connected autotransformer between every first terminal group to parallelly connected discharge tube between two first terminals of the same group, can realize that difference signal normal transmission and accessible autotransformer's center tap connect discharge tube to ground and release between every first terminal group, compare in prior art, reduced the quantity of discharge tube, saved the space and effectively reduced manufacturing cost.
Description
Technical Field
The utility model relates to the technical field of connectors, in particular to a butt joint with a lightning protection function.
Background
In a conventional RJ45 butt joint with a grounding lightning protection function, in order to avoid short circuits between differential signal pairs C1/C2, C3/C6, C4/C5 and C7/C8 caused by the fact that multiple groups of signal PINs share a discharge tube TSS, and the normal communication function is affected, each group of signal PINs needs an independent discharge tube TSS for grounding, as shown in fig. 1, the scheme occupies a product space and is high in cost. Therefore, it is necessary to design a new solution to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to the deficiency of the prior art, and the main objective of the present invention is to provide a docking head with a lightning protection function, which can effectively solve the problems that the existing docking head occupies a product space and has a high cost.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a butt joint with a lightning protection function comprises an insulation body, a shielding shell, a circuit board, a plurality of first terminal groups and a plurality of second terminal groups; one end of the insulating body is provided with a first inserting cavity, and the other end of the insulating body is provided with a second inserting cavity; the shielding shell is covered outside the insulating body; the circuit board is arranged in the insulating body and is provided with a plurality of voltage-stabilizing tubes, a plurality of autotransformers and a discharge tube, one end of the discharge tube is connected with a grounding terminal, and the other end of the discharge tube is connected with a center tap of the autotransformers; the multiple first terminal groups are fixed on the circuit board and located in the first inserting cavity, each first terminal group consists of two first terminals, the two first terminals are respectively in conduction connection with two ends of the corresponding voltage-regulator tubes, and the two first terminals are respectively in conduction connection with two ends of the corresponding autotransformers; the plurality of second terminal sets are fixed on the circuit board and located in the second inserting cavities, each second terminal set is composed of two second terminals, the two second terminals are respectively in conduction connection with two ends of the corresponding voltage-stabilizing tubes, and the two second terminals are respectively in conduction connection with two ends of the corresponding autotransformers.
As a preferred scheme, the insulation body comprises two insulation seats, the two insulation seats are spliced together, the circuit board is clamped on the two insulation seats, the first insertion cavity is located on one of the insulation seats, and the second insertion cavity is located on the other insulation seat.
As a preferred scheme, the two insulating bases are matched, positioned and spliced through the positioning columns and the positioning holes.
Preferably, the ground terminal extends out of the insulating body and is in contact conduction with the shielding shell.
As a preferable scheme, the number of the first terminal set and the number of the second terminal set are four, and correspondingly, the number of the stabilivolt and the autotransformer are four.
Preferably, a contact spring piece extends outwards from the top of the shielding shell.
Compared with the prior art, the utility model has obvious advantages and beneficial effects, and specifically, the technical scheme includes that:
through parallelly connected autotransformer between every first terminal group to parallelly connected discharge tube between two first terminals of the same group, can realize that difference signal normal transmission and accessible autotransformer's center tap connect discharge tube to ground and release between every first terminal group, compare in prior art, reduced the quantity of discharge tube, saved the space and effectively reduced manufacturing cost.
To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a prior art circuit block diagram;
FIG. 2 is a circuit diagram of the preferred embodiment of the present invention;
FIG. 3 is a perspective view of the preferred embodiment of the present invention;
FIG. 4 is a partial schematic view of a preferred embodiment of the present invention;
FIG. 5 is another partial schematic view of the preferred embodiment of the present invention.
The attached drawings indicate the following:
10. insulating body 101 and first insertion cavity
102. Second inserting cavity 11 and insulating base
111. Positioning post 112, positioning hole
20. Shielding case 21, contact shell fragment
30. Circuit board 31, stabilivolt
32. Autotransformer 33, discharge tube
34. Ground terminal 40, first terminal group
41. First terminal 50, second terminal group
51. A second terminal.
Detailed Description
Referring to fig. 2 to 5, a specific structure of a preferred embodiment of the utility model is shown, which includes an insulating body 10, a shielding shell 20, a circuit board 30, a plurality of first terminal sets 40 and a plurality of second terminal sets 50.
A first insertion cavity 101 is formed at one end of the insulating body 10, and a second insertion cavity 102 is formed at the other end of the insulating body 10; the insulation body 10 includes two insulation bases 11, the two insulation bases 11 are spliced together, the first insertion cavity 101 is located on one of the insulation bases 11, the second insertion cavity 102 is located on the other insulation base 11, and the two insulation bases 11 are matched, positioned and spliced through a positioning column 111 and a positioning hole 112.
The shielding shell 20 is wrapped outside the insulating body 10, and a contact elastic sheet 21 extends outwards from the top of the shielding shell 20.
The circuit board 30 is arranged in the insulating body 10, the circuit board 30 is clamped on the two insulating bases 11, the circuit board 30 is provided with a plurality of voltage-stabilizing tubes 31, a plurality of autotransformers 32 and a discharge tube 33, one end of the discharge tube 33 is connected with a grounding terminal 34, the grounding terminal 34 extends out of the insulating body 10 and is in contact conduction with the shielding shell 20, and the other end of the discharge tube 33 is connected with a center tap of the autotransformers 32.
The plurality of first terminal sets 40 are fixed on the circuit board 30 and located in the first insertion cavity 101, each first terminal set 40 is composed of two first terminals 41, the two first terminals 41 are respectively connected with two ends of the corresponding voltage regulator tube 31 in a conduction mode, and the two first terminals 41 are respectively connected with two ends of the corresponding autotransformer 32 in a conduction mode.
The plurality of second terminal groups 50 are fixed on the circuit board 30 and located in the second insertion cavity 102, each second terminal group 50 is composed of two second terminals 51, the two second terminals 51 are respectively connected with two ends of the corresponding voltage regulator tube 31 in a conduction mode, and the two second terminals 51 are respectively connected with two ends of the corresponding autotransformer 32 in a conduction mode. In this embodiment, the number of the first terminal set 40 and the second terminal set 50 is four, and correspondingly, the number of the stabilivolt 31 and the autotransformer 32 is four.
Detailed description the working principle of the present embodiment is as follows:
according to the utility model, the autotransformer 32 is connected in parallel between each first terminal group 40, and the same discharge tube 33 is shared to be grounded, so that the autotransformer 32 can realize normal transmission of differential signals of 4 groups of channels, and when the common-mode lightning noise is butted with the ground, the same discharge tube 33 can be connected through a center tap of the autotransformer 32 to be discharged to the ground.
The design of the utility model is characterized in that:
through parallelly connected autotransformer between every first terminal group to parallelly connected discharge tube between two first terminals of the same group, can realize that difference signal normal transmission and accessible autotransformer's center tap connect discharge tube to ground and release between every first terminal group, compare in prior art, reduced the quantity of discharge tube, saved the space and effectively reduced manufacturing cost.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.
Claims (6)
1. The utility model provides a take butt joint of lightning protection function which characterized in that: the circuit board comprises an insulating body, a shielding shell, a circuit board, a plurality of first terminal groups and a plurality of second terminal groups; one end of the insulating body is provided with a first inserting cavity, and the other end of the insulating body is provided with a second inserting cavity; the shielding shell is covered outside the insulating body; the circuit board is arranged in the insulating body and is provided with a plurality of voltage-stabilizing tubes, a plurality of autotransformers and a discharge tube, one end of the discharge tube is connected with a grounding terminal, and the other end of the discharge tube is connected with a center tap of the autotransformers; the multiple first terminal groups are fixed on the circuit board and located in the first inserting cavity, each first terminal group consists of two first terminals, the two first terminals are respectively in conduction connection with two ends of the corresponding voltage-regulator tubes, and the two first terminals are respectively in conduction connection with two ends of the corresponding autotransformers; the plurality of second terminal sets are fixed on the circuit board and located in the second inserting cavities, each second terminal set is composed of two second terminals, the two second terminals are respectively in conduction connection with two ends of the corresponding voltage-stabilizing tubes, and the two second terminals are respectively in conduction connection with two ends of the corresponding autotransformers.
2. The butt joint with lightning protection function according to claim 1, wherein: the insulation body comprises two insulation seats which are spliced together, the circuit board is clamped on the two insulation seats, the first inserting cavity is located on one of the insulation seats, and the second inserting cavity is located on the other insulation seat.
3. The butt joint with lightning protection function according to claim 2, wherein: the two insulating bases are matched, positioned and spliced through the positioning columns and the positioning holes.
4. The butt joint with lightning protection function according to claim 1, wherein: the grounding terminal extends out of the insulating body and is in contact conduction with the shielding shell.
5. The butt joint with lightning protection function according to claim 1, wherein: the number of the first terminal group and the number of the second terminal group are four, and correspondingly, the number of the voltage-stabilizing tubes and the number of the autotransformers are four.
6. The butt joint with lightning protection function according to claim 1, wherein: and a contact elastic sheet extends outwards from the top of the shielding shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122055015.6U CN215816695U (en) | 2021-08-30 | 2021-08-30 | Butt joint with lightning protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122055015.6U CN215816695U (en) | 2021-08-30 | 2021-08-30 | Butt joint with lightning protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215816695U true CN215816695U (en) | 2022-02-11 |
Family
ID=80152886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122055015.6U Expired - Fee Related CN215816695U (en) | 2021-08-30 | 2021-08-30 | Butt joint with lightning protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215816695U (en) |
-
2021
- 2021-08-30 CN CN202122055015.6U patent/CN215816695U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220211 |
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| CF01 | Termination of patent right due to non-payment of annual fee |