CN210669415U - Terminal box - Google Patents
Terminal box Download PDFInfo
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- CN210669415U CN210669415U CN201921738894.9U CN201921738894U CN210669415U CN 210669415 U CN210669415 U CN 210669415U CN 201921738894 U CN201921738894 U CN 201921738894U CN 210669415 U CN210669415 U CN 210669415U
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- terminal
- power supply
- power
- indicator
- resistor
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- 230000017525 heat dissipation Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
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Abstract
The utility model discloses a junction box, be in including casing and setting circuit board in the casing, be provided with main power input terminal, main power output terminal, first power supply terminal and second power supply terminal on the circuit board, first power supply terminal and second power supply terminal are through walking line electric connection, still be provided with on the circuit board respectively with walk public first interface terminal and the female first interface terminal of line connection, public first interface terminal with female first interface terminal matches each other. When the outdoor machine is used, the main power input terminal and the main power output terminal are respectively connected with the power supply end and the bus, the first power supply terminal and the second power supply terminal are respectively connected with the indoor machine and the door machine, the wiring of the power supply ends is enabled to be neat, the male terminal and the female terminal can be connected in series for use, the wiring does not need to be additionally increased, and the expansion of the power supply and the wiring box is facilitated.
Description
Technical Field
The utility model relates to an entrance guard's intercom technical field, in particular to terminal box.
Background
The existing entrance guard intercom equipment generally comprises an indoor unit and a door phone, when the entrance guard intercom equipment is installed, the indoor unit and the door phone need to be connected with a power supply through wires respectively, and the power supply end is complex in wiring and does not have a short-circuit protection function.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a terminal box can simplify the wiring of power end.
According to the utility model discloses a terminal box of first aspect embodiment, be in including casing and setting circuit board in the casing, be provided with main power input terminal, main power output terminal, first power supply terminal and second power supply terminal on the circuit board, first power supply terminal and second power supply terminal are through walking line electric connection, still be provided with on the circuit board respectively with walk public first interface terminal and the female first interface terminal of line connection, public first interface terminal with female first interface terminal matches each other.
According to the utility model discloses terminal box has following beneficial effect at least:
when the outdoor machine is used, the main power input terminal and the main power output terminal are respectively connected with the power supply end and the bus, the first power supply terminal and the second power supply terminal are respectively connected with the indoor machine and the door machine, the wiring of the power supply ends is enabled to be neat, the male terminal and the female terminal can be connected in series for use, the wiring does not need to be additionally increased, and the expansion of the power supply and the wiring box is facilitated.
According to some embodiments of the utility model, public first interface terminal adopts the public head of USB interface, female first interface terminal adopt with the public first assorted female head of USB interface.
According to some embodiments of the present invention, the first power terminal with be connected with first fuse RS4 between walking the line, the second power terminal with be connected with second fuse RS3 between walking the line.
According to some embodiments of the present invention, the circuit board is provided with at least two indicator lights, one of which is connected to the positive terminal of the first power terminal and the other of which is connected to the positive terminal of the second power terminal.
According to some embodiments of the present invention, the circuit board is provided with 4 indicator lamps, the 4 indicator lamps are respectively a first indicator lamp, a second indicator lamp, a third indicator lamp and a fourth indicator lamp, a negative electrode of the first indicator lamp is grounded, a positive electrode of the first indicator lamp is connected with a resistor R1 and is connected with a positive electrode of the first power terminal through the resistor R1, a positive electrode of the second indicator lamp is grounded, a negative electrode of the second indicator lamp is connected with a resistor R2 and is connected with a positive electrode of the first power terminal through the resistor R2;
the negative pole of the third indicator light is grounded, the positive pole of the third indicator light is connected with a resistor R6 and is connected with the positive pole of the second power supply terminal through the resistor R6, the positive pole of the fourth indicator light is grounded, and the negative pole of the fourth indicator light is connected with a resistor R5 and is connected with the positive pole of the second power supply terminal through the resistor R5.
According to some embodiments of the invention, the first indicator light and the second indicator light are respectively disposed on the positive side and the negative side of the first power terminal, and the third indicator light and the fourth indicator light are respectively disposed on the positive side and the negative side of the second power terminal.
According to some embodiments of the utility model, the casing is including dismantling the upper cover and the lower cover of connection, the lower cover is provided with the louvre.
According to some embodiments of the utility model, the upper cover is provided with dodges the 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 above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic diagram 1 of the structure of an embodiment of the present invention;
fig. 2 is a schematic illustration of an explosion of an embodiment of the present invention 1;
FIG. 3 is a schematic view of a tandem connection structure according to an embodiment of the present invention;
fig. 4 is a schematic diagram 2 of the structure of an embodiment of the present invention;
fig. 5 is a schematic illustration of an explosion of an embodiment of the present invention 2;
fig. 6 is a schematic circuit diagram according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1 and fig. 2, the present embodiment discloses a junction box, including a housing 100 and a circuit board 200 disposed in the housing 100, the circuit board 200 is provided with a main power input terminal 201, a main power output terminal 202, a first power terminal 203 and a second power terminal 204, the first power terminal 203 and the second power terminal 204 are electrically connected by a routing wire 205, the circuit board 200 is further provided with a male interface terminal 206 and a female interface terminal 207 respectively connected with the routing wire 205, and the male interface terminal 206 and the female interface terminal 207 are matched with each other.
When the outdoor machine is used, the main power input terminal 201 is connected with a power supply end, the main power output terminal 202 can be connected with a bus or can be idle, and the first power supply terminal 203 and the second power supply terminal 204 are respectively connected with an indoor machine and an outdoor machine, so that the wiring quantity of the power supply end can be reduced, and the wiring of the power supply end is orderly; in addition, referring to fig. 3, the male connector terminal 206 and the female connector terminal 207 may be connected in series for use, and no additional wiring is required, which is convenient for the expansion of the power supply and the junction box. Specifically, the male connector terminal 206 and the female connector terminal 207 are respectively arranged on two opposite sides of the casing 100, the male connector terminal 206 extends out of the casing 100 from the casing 100, and when the connector is used, the male connector terminal 206 of one junction box is inserted into the female connector terminal 207 of another junction box, so that serial connection is realized, the operation is simple and convenient, and the product installation efficiency is improved.
Referring to fig. 2 and fig. 6, in order to provide the applicability of the product, the male connector 206 is a USB connector male, the female connector 207 is a USB connector female that matches the USB connector male, the ground pin of the USB connector male is connected to the ground terminal of the circuit board 200, the other pins of the USB connector male are shorted together and connected to the trace 205, and the ground pin of the USB connector male and the other pins after shorting are respectively used as two power supply electrodes; similarly, the ground pin of the USB interface female is grounded, and other pins of the USB interface female are shorted together and connected to the trace 205.
Referring to fig. 6, a first fuse RS4 is connected between the first power terminal 203 and the wire 205, a second fuse RS3 is connected between the second power terminal 204 and the wire 205, and the first fuse RS4 and the second fuse RS3 are arranged to perform short-circuit protection and overvoltage protection on the indoor unit and the outdoor unit, respectively, which is beneficial to improving the safety of the product.
Referring to fig. 4 to 6, at least two indicator lights are disposed on the circuit board 200, wherein one indicator light is connected to the positive electrode of the first power terminal 203, the other indicator light is connected to the positive electrode of the second power terminal 204, and the two indicator lights 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 whether the main power input terminal 201 and the power source are connected in the positive direction or in the reverse direction, and the first power terminal 203 and the second power terminal 204 only have different positive and negative polarities of the pins. 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 a 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 a resistor R2; when the main power input terminal 201 is connected with the power supply, the first indicator lamp 601 is on, and the second indicator lamp 602 is off; when the main power input terminal 201 is reversely connected to the power source, the second indicator lamp 602 is turned on, and the first indicator lamp 601 is turned off.
Similarly, the negative electrode of the third indicator light 603 is grounded, the positive electrode of the third indicator light 603 is connected to the resistor R6 and is connected to the positive electrode of the second power supply terminal 204 through the resistor R6, the positive electrode of the fourth indicator light 604 is grounded, and the negative electrode of the fourth indicator light 604 is connected to the resistor R5 and is connected to 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 electrode side and the negative electrode side of the first power terminal 203, when the first indicator lamp 601 is turned on, the main power input terminal 201 is connected with the power, and the 2 nd pin of the first power terminal 203 is a positive electrode; when the second indicator lamp 602 is turned on, the main power input terminal 201 is reversely connected with a power supply, the 1 st pin of the first power terminal 203 is a positive electrode, and the positive pin of the first power terminal 203 and the working state of whether the power supply is on can be vividly and intuitively indicated; similarly, a third indicator light 603 and a fourth indicator light 604 are provided on the positive side and the negative side of the second power supply terminal 204, respectively.
Referring to fig. 5, the housing 100 includes an upper cover 101 and a lower cover 102 detachably connected, specifically, the upper cover 101 and the lower cover 102 are connected in a buckling manner 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 an avoiding groove 104, and the positions of the avoiding groove 104 respectively correspond to the first power terminal 203, the second power terminal 204, the male interface terminal 206 and the female interface terminal 207, so as to facilitate the installation and wiring of the upper cover 101, it is thought that when the main power input terminal 201 and the main power output terminal 202 are provided on the junction box of the present embodiment, the positions of the upper cover 101 at the main power input terminal 201 and the main power output terminal 202 should be provided with the avoiding groove 104.
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 different pins for convenience of explanation of the technical solution, and are not used to distinguish the polarities of the 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 without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (8)
1. The junction box is characterized by comprising a shell (100) and a circuit board (200) arranged in the shell (100), wherein the circuit board (200) is provided with a main power input terminal (201), a main power output terminal (202), a first power terminal (203) and a second power terminal (204), the first power terminal (203) and the second power terminal (204) are electrically connected through a wiring (205), the circuit board (200) is further provided with a male interface terminal (206) and a female interface terminal (207), the male interface terminal (206) and the female interface terminal (207) are connected with the wiring (205) respectively, and the male interface terminal (206) and the female interface terminal (207) are matched with each other.
2. The terminal box according to claim 1, wherein the male connector (206) is a male USB connector, and the female connector (207) is a female USB connector matching the male USB connector.
3. The junction box according to claim 1, wherein a first fuse RS4 is connected between the first power terminal (203) and the wire (205), and a second fuse RS3 is connected between the second power terminal (204) and the wire (205).
4. Junction box according to claim 1 or 3, characterized in that at least two indicator lights are provided on the circuit board (200), one of which indicator lights is connected to the positive pole of the first power terminal (203) and the other indicator light is connected to the positive pole of the second power terminal (204).
5. The junction box of claim 4, characterized in that 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 pole of the first indicator lamp (601) is grounded, the positive pole of the first indicator lamp (601) is connected with a resistor R1 and is connected with the positive pole of the first power supply terminal (203) through the resistor R1, the positive pole of the second indicator lamp (602) is grounded, the negative pole of the second indicator lamp (602) is connected with a resistor R2 and is connected with the positive pole of the first power supply terminal (203) through the resistor R2;
the negative pole of the third indicator light (603) is grounded, the positive pole of the third indicator light (603) is connected with a resistor R6 and is connected with the positive pole of the second power supply terminal (204) through the resistor R6, the positive pole of the fourth indicator light (604) is grounded, and the negative pole of the fourth indicator light (604) is connected with a resistor R5 and is connected with the positive pole of the second power supply terminal (204) through the resistor R5.
6. The junction box according to claim 5, characterized in that said first indicator light (601) and second indicator light (602) are arranged on the positive side and negative side of said first power supply terminal (203), respectively, and said third indicator light (603) and fourth indicator light (604) are arranged on the positive side and negative side of said second power supply terminal (204), respectively.
7. Junction box according to claim 1, characterized in that said housing (100) comprises an upper cover (101) and a lower cover (102) which are detachably connected, said lower cover (102) being provided with heat dissipation holes (103).
8. Junction box according to claim 7, characterized in that the upper cover (101) is provided with an avoidance groove (104).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921738894.9U CN210669415U (en) | 2019-10-16 | 2019-10-16 | Terminal box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921738894.9U CN210669415U (en) | 2019-10-16 | 2019-10-16 | Terminal box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210669415U true CN210669415U (en) | 2020-06-02 |
Family
ID=70820671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921738894.9U Expired - Fee Related CN210669415U (en) | 2019-10-16 | 2019-10-16 | Terminal box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210669415U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110729681A (en) * | 2019-10-16 | 2020-01-24 | 珠海市竞争电子科技有限公司 | Terminal box |
-
2019
- 2019-10-16 CN CN201921738894.9U patent/CN210669415U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110729681A (en) * | 2019-10-16 | 2020-01-24 | 珠海市竞争电子科技有限公司 | Terminal box |
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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: 20200602 |