CN110729681B - Junction box - Google Patents
Junction box Download PDFInfo
- Publication number
- CN110729681B CN110729681B CN201910981441.7A CN201910981441A CN110729681B CN 110729681 B CN110729681 B CN 110729681B CN 201910981441 A CN201910981441 A CN 201910981441A CN 110729681 B CN110729681 B CN 110729681B
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- CN
- China
- Prior art keywords
- terminal
- power
- indicator light
- resistor
- junction box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/08—Distribution boxes; Connection or junction boxes
- H02G3/16—Distribution boxes; Connection or junction boxes structurally associated with support for line-connecting terminals within the box
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/03—Cooling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Connection Or Junction Boxes (AREA)
Abstract
The invention discloses a junction box which comprises a shell and a circuit board arranged in the shell, wherein a main power input terminal, a main power output terminal, a first power terminal and a second power terminal are arranged on the circuit board, the first power terminal and the second power terminal are electrically connected through a wiring, a male head interface terminal and a female head interface terminal which are respectively connected with the wiring are also arranged on the circuit board, and the male head interface terminal and the female head interface terminal are mutually matched. When the indoor machine is used, the main power input terminal and the main power output terminal are respectively connected with the power end and the bus, the first power terminal and the second power terminal are respectively connected with the indoor machine and the door machine, so that the wiring of the power end is orderly, in addition, the male terminal and the female terminal can be used in series, no extra wiring is needed, and the expansion of a power supply and a junction box is facilitated.
Description
Technical Field
The invention relates to the technical field of entrance guard intercom equipment, in particular to a junction box.
Background
The prior entrance guard intercom equipment generally comprises an indoor unit and a gate machine, wherein the indoor unit and the gate machine are required to be connected with a power supply through wires respectively during installation, and the power supply terminal is complex in wiring and does not have a short-circuit protection function.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the junction box which can simplify the wiring of the power supply terminal.
According to the first aspect of the invention, the junction box comprises a shell and a circuit board arranged in the shell, wherein a main power input terminal, a main power output terminal, a first power terminal and a second power terminal are arranged on the circuit board, the first power terminal and the second power terminal are electrically connected through wires, a male interface terminal and a female interface terminal which are respectively connected with the wires are also arranged on the circuit board, and the male interface terminal and the female interface terminal are mutually matched.
The junction box provided by the embodiment of the invention has at least the following beneficial effects:
when the indoor machine is used, the main power input terminal and the main power output terminal are respectively connected with the power end and the bus, the first power terminal and the second power terminal are respectively connected with the indoor machine and the door machine, so that the wiring of the power end is orderly, in addition, the male terminal and the female terminal can be used in series, no extra wiring is needed, and the expansion of a power supply and a junction box is facilitated.
According to some embodiments of the invention, the male interface terminal is a USB interface male, and the female interface terminal is a USB interface female matched with the USB interface male.
According to some embodiments of the invention, a first fuse RS4 is connected between the first power terminal and the trace, and a second fuse RS3 is connected between the second power terminal and the trace.
According to some embodiments of the invention, at least two indicator lamps are arranged on the circuit board, wherein one indicator lamp is connected with the positive electrode of the first power terminal, and the other indicator lamp is connected with the positive electrode of the second power terminal.
According to some embodiments of the present invention, 4 indicator lamps are disposed on the circuit board, the 4 indicator lamps are a first indicator lamp, a second indicator lamp, a third indicator lamp and a fourth indicator lamp, the negative electrode of the first indicator lamp is grounded, the positive electrode of the first indicator lamp is connected with a resistor R1 and is connected with the positive electrode of the first power terminal through the resistor R1, the positive electrode of the second indicator lamp is grounded, the negative electrode of the second indicator lamp is connected with a resistor R2 and is connected with the positive electrode of the first power terminal through the resistor R2;
The negative electrode of the third indicator lamp is grounded, the positive electrode of the third indicator lamp is connected with a resistor R6, the positive electrode of the third indicator lamp is connected with the positive electrode of the second power supply terminal through the resistor R6, the positive electrode of the fourth indicator lamp is grounded, and the negative electrode of the fourth indicator lamp is connected with a resistor R5, and the positive electrode of the fourth indicator lamp is connected with the positive electrode of the second power supply terminal through the resistor R5.
According to some embodiments of the invention, the first and second indicator lights are disposed on the positive and negative sides of the first power terminal, respectively, and the third and fourth indicator lights are disposed on the positive and negative sides of the second power terminal, respectively.
According to some embodiments of the invention, the housing comprises a detachably connected upper cover and lower cover, the lower cover being provided with heat dissipation holes.
According to some embodiments of the invention, the upper cover is provided with a relief groove.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic view of the structure of an embodiment of the present invention 1;
FIG. 2 is a schematic illustration 1 of an explosion of an embodiment of the present invention;
FIG. 3 is a schematic diagram of a serial connection structure according to an embodiment of the present invention;
FIG. 4 is a schematic view of the structure of an embodiment of the present invention 2;
FIG. 5 is a schematic illustration of an explosion of an embodiment of the present invention, FIG. 2;
Fig. 6 is a schematic circuit diagram of an embodiment of the present invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Referring to fig. 1 and 2, the present embodiment discloses a junction box, which includes a housing 100 and a circuit board 200 disposed in the housing 100, wherein a main power input terminal 201, a main power output terminal 202, a first power terminal 203 and a second power terminal 204 are disposed on the circuit board 200, the first power terminal 203 and the second power terminal 204 are electrically connected through a wire 205, and a male interface terminal 206 and a female interface terminal 207 connected with the wire 205 are further disposed on the circuit board 200, and the male interface terminal 206 and the female interface terminal 207 are mutually matched.
In addition, referring to fig. 3, the male interface terminal 206 and the female interface terminal 207 can be used in series without additional connection, so as to facilitate the expansion of a power supply and a junction box, and it is conceivable that the number of the male interface terminal 206 or the female interface terminal 207 can be one or more than two according to the requirements of actual products. Specifically, the male interface terminal 206 and the female interface terminal 207 are respectively disposed on opposite sides of the housing 100, and the male interface terminal 206 extends out of the housing 100 from the interior of the housing 100, and when in use, the male interface terminal 206 of one junction box is inserted into the female interface terminal 207 of another junction box, so as to realize serial connection, and the operation is simple and convenient, thereby being beneficial to improving the installation efficiency of the product.
Referring to fig. 2 and 6, in order to provide applicability of the product, the male connector terminal 206 is a USB connector male connector, the female connector terminal 207 is a USB connector female connector matched with the USB connector male connector, a grounding pin of the USB connector male connector is connected with a grounding end of the circuit board 200, other pins of the USB connector male connector are shorted together and connected with the trace 205, the grounding pin of the USB connector male connector and other pins after being shorted are respectively used as two poles of a power supply, and similarly, the grounding pin of the USB connector female connector is grounded, and other pins of the USB connector female connector are shorted together and connected with the trace 205.
Referring to fig. 6, a first fuse RS4 is connected between the first power terminal 203 and the trace 205, a second fuse RS3 is connected between the second power terminal 204 and the trace 205, and the first fuse RS4 and the second fuse RS3 are configured to perform short-circuit and overvoltage protection on the indoor unit and the door unit, respectively, so that the safety of the product is improved.
Referring to fig. 4 to 6, the circuit board 200 is provided with at least two indicator lamps, wherein one indicator lamp is connected with the positive electrode of the first power terminal 203, the other indicator lamp is connected with the positive electrode of the second power terminal 204, and the two indicator lamps are respectively used for displaying the working states of the first power terminal 203 and the second power terminal 204.
Referring to fig. 6, in the present embodiment, the junction box can be energized regardless of whether the main power input terminal 201 is connected to the power source in the positive or in the negative direction, and only the positive and negative polarities of the pins are different for the first power terminal 203 and the second power terminal 204. In order to distinguish the positive and negative polarities of the first power terminal 203 and the second power terminal 204, 4 indicator lamps are arranged on the circuit board 200, the 4 indicator lamps are respectively a first indicator lamp 601, a second indicator lamp 602, a third indicator lamp 603 and a fourth indicator lamp 604, the negative electrode of the first indicator lamp 601 is grounded, the positive electrode of the first indicator lamp 601 is connected with a resistor R1 and is connected with the positive electrode of the first power terminal 203 through the resistor R1, the positive electrode of the second indicator lamp 602 is grounded, the negative electrode of the second indicator lamp 602 is connected with a resistor R2 and is connected with the positive electrode of the first power terminal 203 through the resistor R2, when the main power input terminal 201 is connected with a power source positively, the first indicator lamp 601 is on, the second indicator lamp 602 is off, when the main power input terminal 201 is reversely connected with the power source, the second indicator lamp 602 is on, and the first indicator lamp 601 is off.
Similarly, the negative electrode of the third indicator lamp 603 is grounded, the positive electrode of the third indicator lamp 603 is connected with a resistor R6 and is connected with the positive electrode of the second power supply terminal 204 through the resistor R6, the positive electrode of the fourth indicator lamp 604 is grounded, and the negative electrode of the fourth indicator lamp 604 is connected with a resistor R5 and is connected with the positive electrode of the second power supply terminal 204 through the resistor R5.
The first indicator lamp 601 and the second indicator lamp 602 are respectively arranged on the positive side and the negative side of the first power supply terminal 203, the first indicator lamp 601 is on to indicate that the main power supply input terminal 201 is connected with a power supply positively, the 2 nd pin of the first power supply terminal 203 is positive, the second indicator lamp 602 is on to indicate that the main power supply input terminal 201 is connected with a power supply reversely, the 1 st pin of the first power supply terminal 203 is positive, the positive pin of the first power supply terminal 203 and the working state of whether the first power supply terminal 203 is electrified can be visually indicated, and the third indicator lamp 603 and the fourth indicator lamp 604 are respectively arranged on the positive side and the negative side of the second power supply terminal 204.
Referring to fig. 5, the housing 100 includes an upper cover 101 and a lower cover 102 that are detachably connected, specifically, the upper cover 101 and the lower cover 102 are fastened together or connected by screws, and the lower cover 102 is provided with heat dissipation holes 103, which is beneficial to improving the heat dissipation performance of the junction box.
The upper cover 101 is provided with the escape groove 104, and the positions of the escape groove 104 correspond to the first power supply terminal 203, the second power supply terminal 204, the male interface terminal 206 and the female interface terminal 207, respectively, so that the mounting and wiring of the upper cover 101 are facilitated, and it is conceivable that, when the main power supply input terminal 201 and the main power supply output terminal 202 are provided on the junction box of the present embodiment, the escape groove 104 should be provided at the positions of the upper cover 101 at the main power supply input terminal 201 and the main power supply output terminal 202.
It should be noted that, the positive and negative electrodes of the main power input terminal 201, the main power output terminal 202, the first power terminal 203, and the second power terminal 204 are only used to distinguish between different pins for convenience in describing the technical solution, and not to distinguish between polarities of pins.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910981441.7A CN110729681B (en) | 2019-10-16 | 2019-10-16 | Junction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910981441.7A CN110729681B (en) | 2019-10-16 | 2019-10-16 | Junction box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110729681A CN110729681A (en) | 2020-01-24 |
| CN110729681B true CN110729681B (en) | 2025-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910981441.7A Active CN110729681B (en) | 2019-10-16 | 2019-10-16 | Junction box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110729681B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7287297B2 (en) * | 2020-01-30 | 2023-06-06 | 住友電装株式会社 | Connector module and substrate structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101854033A (en) * | 2009-03-30 | 2010-10-06 | 华为技术有限公司 | A power distribution module and a power distribution box |
| CN107492314A (en) * | 2016-06-13 | 2017-12-19 | 瑞沃罗申显示有限责任公司 | The building panel system that the combination of sense organ and non-sense organ output tiling module is formed |
| CN210669415U (en) * | 2019-10-16 | 2020-06-02 | 珠海市竞争电子科技有限公司 | Terminal box |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202472637U (en) * | 2012-01-06 | 2012-10-03 | 王杰韩 | Electronic device capable of being connected in series |
| CN202423680U (en) * | 2012-05-31 | 2012-09-05 | 王雷 | Building block type combination socket |
-
2019
- 2019-10-16 CN CN201910981441.7A patent/CN110729681B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101854033A (en) * | 2009-03-30 | 2010-10-06 | 华为技术有限公司 | A power distribution module and a power distribution box |
| CN107492314A (en) * | 2016-06-13 | 2017-12-19 | 瑞沃罗申显示有限责任公司 | The building panel system that the combination of sense organ and non-sense organ output tiling module is formed |
| CN210669415U (en) * | 2019-10-16 | 2020-06-02 | 珠海市竞争电子科技有限公司 | Terminal box |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110729681A (en) | 2020-01-24 |
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