Waterproof signal junction box with overcurrent protection function

Abstract

The utility model discloses a waterproof signal junction box with overcurrent protection, which comprises a shell, a circuit board, a connector, a crimping terminal and a waterproof joint, and is arranged in the shell through the circuit board. The connector is arranged on the circuit board; the number of the wire pressing terminals is multiple, all the wire pressing terminals are arranged on the circuit board, and all the wire pressing terminals are electrically connected with the connector. The shell is provided with a threading connector, the waterproof connector is connected with the threading connector, and the waterproof connector is used for leading out a power supply and / or a signal line of the line pressing terminal; and / or a power supply and / or a signal line of the connector are / is led out. Therefore, the box has certain waterproof performance, and the circuit board and the connecting wire in the box are easily affected by water and dust in the field environment.

Description

Technical Field

[0001] This utility model relates to the field of junction box technology, and in particular to a waterproof signal junction box with overcurrent protection. Background Technology

[0002] Terminal blocks are typically used for connecting power supply lines and / or signal lines. To protect the wiring, terminal blocks are usually housed within a junction box. Power and signal lines exit through through-holes in the terminal box for connection to other devices.

[0003] In applications such as photovoltaics, the operating environment is typically outdoors. Outdoor environments are relatively complex, which can lead to liquids or dust entering the junction box. This can easily cause short circuits in the circuit boards and terminals within the junction box. Utility Model Content

[0004] The present invention aims to at least partially solve one of the technical problems in the related art. Therefore, one objective of the present invention is to provide a waterproof signal junction box with overcurrent protection.

[0005] To achieve the above objectives, a waterproof signal junction box with overcurrent protection according to an embodiment of the present invention includes:

[0006] case;

[0007] A circuit board, which is mounted inside the housing;

[0008] A connector, which is mounted on the circuit board;

[0009] The circuit includes multiple wire terminals, each of which is disposed on the circuit board and electrically connected to the connector.

[0010] A waterproof connector is provided on the housing, and the waterproof connector is connected to the wire guide connector. The waterproof connector is used to lead out the power and / or signal lines of the crimp terminal; and / or the power and / or signal lines of the connector.

[0011] Furthermore, according to one embodiment of the present invention, the housing includes:

[0012] Top cover;

[0013] The main housing, with the upper cover detachably connected to the main housing.

[0014] Furthermore, according to one embodiment of the present invention, the main housing is provided with a plurality of wire ends, and the waterproof connector is also provided with a plurality of corresponding wire ends;

[0015] One of the wire leads is used to bring out the power and / or signal lines of the connector to the outside, and the other wire leads are used to bring out the power and / or signal lines of the crimp terminals to the outside.

[0016] Furthermore, according to one embodiment of the present invention, the waterproof connector includes:

[0017] A locking head, wherein the locking head is threadedly connected to the threading head;

[0018] A waterproof seal is disposed between the locking head and the threading head to seal the gap between the locking head and the threading head.

[0019] Furthermore, according to one embodiment of the present invention, the waterproof signal junction box with overcurrent protection further includes:

[0020] A sealing ring is provided at the location where the main housing and the upper cover are opposite, and the sealing ring is disposed at the sealing groove to seal the gap between the upper cover and the main housing.

[0021] Furthermore, according to one embodiment of the present invention, the circuit board further includes a power indicator circuit, which is connected to the power supply terminal of the connector via the circuit board to indicate the power supply; the power indicator circuit includes:

[0022] The first resistor R1, one end of which is connected to the positive power terminal of the connector via a fuse F1;

[0023] A power indicator light includes a first light-emitting diode D1, the anode of the first light-emitting diode D1 is connected to the other end of the first resistor R1, and the cathode of the first light-emitting diode D1 is connected to the negative power terminal of the connector.

[0024] Furthermore, according to one embodiment of the present invention, the circuit board further includes:

[0025] A signal indicating circuit is provided on the circuit board. Each of the wire terminals is connected to the common terminal of the switch through one of the signal indicating circuits. The signal indicating circuit is used to indicate the signal of the wire terminal.

[0026] Furthermore, according to one embodiment of the present invention, the signal indication circuit includes:

[0027] The second resistor R2, one end of which is connected to the common terminal of the switching switch;

[0028] The signal indicator light includes a second light-emitting diode D2, the cathode of the second light-emitting diode D2 is connected to the other end of the second resistor R2, and the anode of the second light-emitting diode D2 is connected to the first signal terminal of the pressure terminal.

[0029] Furthermore, according to one embodiment of the present invention, the wire clamping terminal is a screw terminal.

[0030] The waterproof signal junction box with overcurrent protection provided in this embodiment of the utility model is installed inside the housing via a circuit board; a connector is mounted on the circuit board; multiple wire terminals are provided, each wire terminal is disposed on the circuit board, and each wire terminal is electrically connected to the connector; a wire guide is provided on the housing, and a waterproof connector is connected to the wire guide, the waterproof connector being used to lead out the power and / or signal lines of the wire terminals; and / or the power and / or signal lines of the connector. Thus, it has a certain degree of waterproof performance, but is easily affected by water and dust in the environment, which can damage the circuit board and connecting wires inside the box. Attached Figure Description

[0031] Figure 1 Structural block diagram of the waterproof signal junction box with overcurrent protection provided by this utility model;

[0032] Figure 2 Structural block diagram of the waterproof signal junction box with overcurrent protection provided by this utility model;

[0033] Figure 3 Structural block diagram of the waterproof signal junction box with overcurrent protection provided by this utility model;

[0034] Figure 4 A schematic diagram of the circuit structure of the circuit board provided by this utility model.

[0035] Figure Labels

[0036] Casing 10;

[0037] Top cover 101;

[0038] main housing 102;

[0039] Sealing groove 1021;

[0040] Cable connectors 1021A and 1021B;

[0041] Waterproof connectors 103A and 103B;

[0042] Waterproof seals 1031A and 1031B;

[0043] Part 10311A;

[0044] Part Two 10312A;

[0045] Locking heads 1032A, 1032B;

[0046] Sealing ring 104;

[0047] Circuit board 105;

[0048] Connector 1051(J1);

[0049] Wire terminals 1052 (J2-J9).

[0050] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0051] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the present invention.

[0052] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0053] See Figures 1 to 3This utility model provides a waterproof signal junction box with overcurrent protection, comprising: a housing 10, a circuit board 105, a connector 1051 (J1), wire terminals 1052 (J2-J9), and waterproof connectors 103A and 103B. The circuit board 105 is installed inside the housing 10; the connector 1051 (J1) is mounted on the circuit board 105; multiple wire terminals 1052 (J2-J9) are provided, and each wire terminal 1052 (J2-J9) is respectively disposed in the circuit board. On board 105, each wire terminal 1052 (J2-J9) is electrically connected to connector 1051 (J1); the housing 10 is provided with wire connectors 1021A and 1021B, and waterproof connectors 103A and 103B are connected to wire connectors 1021A and 1021B. The waterproof connectors 103A and 103B are used to lead out the power and / or signal lines of the wire terminals 1052 (J2-J9) and / or the power and / or signal lines of connector 1051 (J1).

[0054] Specifically, such as Figure 2 and Figure 3 As shown, the circuit board 105 is mounted on the housing 10, which includes an upper cover 101 and a main housing 102, wherein the upper cover 101 and the main housing 102 are detachably connected. For example, the upper cover 101 and the main housing 102 can be fixedly connected by screws. In this way, the circuit board 105 can be sealed within the space formed by the upper cover 101 and the main housing 102. The circuit board 105 is provided with connectors 1051 (J1) and crimp terminals 1052 (J2-J9). Figures 1 to 3 As shown, the main housing 102 is provided with multiple wire guides, and the waterproof connectors 103A and 103B are also provided with multiple corresponding wire guides; one of the wire guides is used to lead out the power and / or signal lines of the connector 1051 (J1), and the other wire guides are used to lead out the power and / or signal lines of the crimp terminals 1052 (J2-J9).

[0055] The connector 1051 (J1) can be connected via a ribbon cable and a terminal block, and the signal is led out from the wire end of one of the waterproof connectors 103A and 103B via the ribbon cable, thereby connecting to power and signal equipment. Multiple crimp terminals 1052 (J2-J9) can be provided, each of which can lead out a power / signal line and be connected via a ribbon cable through waterproof connectors 103A and 103B, and the signal is led out from one of the waterproof connectors 103A and 103B via the ribbon cable to connect to the controlled equipment. Since each power and / or signal line leads out from the waterproof connectors 103A and 103B, the lead-out channels of each power and / or signal line can be sealed through the waterproof connectors 103A and 103B, thereby preventing liquid or dust from entering the interior of the housing 10, achieving waterproof and dustproof purposes. The crimp terminals 1052 (J2-J9) can be screw terminals. This waterproof and dustproof adapter terminal has a certain degree of waterproof performance, making it less susceptible to signal connection issues caused by water and dust in the field. Its screw terminal design allows for quick and easy connection and disconnection, improving work efficiency. The wiring is secure and less prone to loosening, making it superior for field applications. It offers advantages in waterproofing, corrosion resistance, durability, economy, and cost-effectiveness, and can meet the wiring needs of new energy equipment, charging piles, solar heating panels, and other fields.

[0056] See Figure 3 The waterproof connectors 103A and 103B include: locking heads 1032A and 1032B and waterproof sealing elements 1031A and 1031B. The locking heads 1032A and 1032B are threadedly connected to the wire threading head. The waterproof sealing elements 1031A and 1031B are disposed between the locking heads 1032A and 1032B and the wire threading head to seal the gap between the locking heads 1032A and 1032B and the wire threading head.

[0057] Specifically, such as Figure 3As shown, the waterproof seals 1031A and 1031B have through holes in their middle portions. The waterproof seals 1031A and 1031B can be either frustum or cylindrical structures. When the waterproof seals 1031A and 1031B are cylindrical structures, they include a first portion 10311A and a second portion 10312A. A stepped structure is formed between the first portion 10311A and the second portion 10312A. The first part 10311A is inserted into the cable guide, and the second part 10312A is located inside the locking heads 1032A and 1032B. The power and / or signal cable connection wires can be led out from the through holes of the waterproof seals 1031A and 1031B. After the locking heads 1032A and 1032B are tightened with screws between them and the cable guide, the waterproof seals 1031A and 1031B can seal the gap between the power and / or signal cable connection wires and the cable guide and locking heads 1032A and 1032B, thus greatly enhancing the waterproof and dustproof rating. When the waterproof seals 1031A and 1031B are frustum structures, the smaller outer diameter portion is inserted into the wire guide; the larger outer diameter portion is located in the locking heads 1032A and 1032B. After the locking heads 1032A and 1032B are tightened with screws between them and the wire guide, the waterproof seals 1031A and 1031B can seal the gap between the power and / or signal line connection and the wire guide and locking heads 1032A and 1032B, thus greatly enhancing the waterproof and dustproof rating.

[0058] See Figure 2 and Figure 3 The waterproof signal junction box with overcurrent protection further includes a sealing ring 104. A sealing groove 1021 is provided at the location opposite the upper cover 101 on the main housing 102. The sealing ring 104 is disposed in the sealing groove 1021 to seal the gap between the upper cover 101 and the main housing 102. By placing the sealing ring 104 in the gap between the upper cover 101 and the main housing 102, and after tightening the upper cover 101 and the main housing 102 with screws, the sealing ring 104 can be pressed tightly. The sealing ring 104 effectively seals the gap between the upper cover 101 and the main housing 102, enhancing the waterproof and dustproof rating.

[0059] See Figure 4The circuit board 105 further includes a power indicator circuit, which is connected to the power supply terminal of the connector 1051 (J1) via the circuit board 105 to indicate the power supply. The power indicator circuit includes a first resistor R1 and a power indicator light. One end of the first resistor R1 is connected to the positive power supply terminal of the connector 1051 (J1) via a fuse F1. The power indicator light includes a first light-emitting diode D1, the anode of which is connected to the other end of the first resistor R1, and the cathode of which is connected to the negative power supply terminal of the connector 1051 (J1). Figure 4 As shown, the power supply status can be indicated by the power indicator circuit. When connector 1051 (J1) is correctly connected to the power supply and signal device, the power supply can supply power to the first light-emitting diode D1, thereby lighting up the first light-emitting diode D1 and indicating the power supply status.

[0060] like Figure 4 As shown, each of the wire terminals 1052 (J2-J9) is connected to the power supply, thereby allowing the power to be led out to the outside. The power supply circuit is set with fuse F1 for overcurrent protection.

[0061] See Figure 4 The circuit board 105 further includes a signal indicating circuit, which is disposed on the circuit board 105. Each of the wire terminals 1052 (J2-J9) is connected to the common terminal of the switch through one of the signal indicating circuits. The signal indicating circuit is used to indicate the signal of the wire terminals 1052 (J2-J9). Figure 4 As shown, the signal indication circuit includes a second resistor R2 and a signal indicator light. One end of the second resistor R2 is connected to the common terminal of the switch. The signal indicator light includes a second light-emitting diode D2. The cathode of the second light-emitting diode D2 is connected to the other end of the second resistor R2, and the anode of the second light-emitting diode D2 is connected to the first signal terminal of the wire terminals 1052 (J2-J9). By providing a signal indication circuit for each wire terminal 1052 (J2-J9), the signal status of each wire terminal 1052 (J2-J9) can be indicated. For example, when the connection signal is a low-level signal, the second light-emitting diode D2 can be lit. When the connection signal is a high-level signal, the second light-emitting diode D2 is off. Thus, the signal status of the wire terminals 1052 (J2-J9) can be indicated, making it convenient for the user to obtain the signal status.

[0062] The above are merely embodiments of this utility model, but do not limit the patent scope of this utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

[0063] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0064] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention, and all such changes and variations are within the protection scope of the present invention.

Claims

1. A waterproof signal junction box with overcurrent protection, characterized in that, include: case; A circuit board, which is mounted inside the housing; A connector, which is mounted on the circuit board; The circuit includes multiple wire terminals, each of which is disposed on the circuit board and electrically connected to the connector. A waterproof connector is provided on the housing, and the waterproof connector is connected to the wire guide connector. The waterproof connector is used to lead out the power and / or signal lines of the crimp terminal; and / or the power and / or signal lines of the connector.

2. The waterproof signal junction box with overcurrent protection according to claim 1, characterized in that, The housing includes: Top cover; The main housing, with the upper cover detachably connected to the main housing.

3. The waterproof signal junction box with overcurrent protection according to claim 2, characterized in that, The main housing is provided with multiple wire ends, and the waterproof connector is also provided with multiple corresponding wire ends; One of the wire leads is used to bring out the power and / or signal lines of the connector to the outside, and the other wire leads are used to bring out the power and / or signal lines of the crimp terminals to the outside.

4. The waterproof signal junction box with overcurrent protection according to claim 3, characterized in that, The waterproof connector includes: A locking head, wherein the locking head is threadedly connected to the threading head; A waterproof seal is disposed between the locking head and the threading head to seal the gap between the locking head and the threading head.

5. The waterproof signal junction box with overcurrent protection according to any one of claims 2 to 4, characterized in that, Also includes: A sealing ring is provided at the location where the main housing and the upper cover are opposite, and the sealing ring is disposed at the sealing groove to seal the gap between the upper cover and the main housing.

6. The waterproof signal junction box with overcurrent protection according to claim 5, characterized in that, The circuit board also includes a power indicator circuit, which is connected to the power terminal of the connector via the circuit board to indicate the power supply. The power indicator circuit includes: The first resistor (R1) has one end connected to the positive power terminal of the connector via a fuse (F1); A power indicator light includes a first light-emitting diode (D1), the anode of the first light-emitting diode (D1) is connected to the other end of the first resistor (R1), and the cathode of the first light-emitting diode (D1) is connected to the negative power terminal of the connector.

7. The waterproof signal junction box with overcurrent protection according to claim 6, characterized in that, The circuit board also includes: A signal indicating circuit is provided on the circuit board. Each of the wire terminals is connected to the common terminal of the switch through one of the signal indicating circuits. The signal indicating circuit is used to indicate the signal of the wire terminal.

8. The waterproof signal junction box with overcurrent protection according to claim 7, characterized in that, The signal indication circuit includes: The second resistor (R2) has one end connected to the common terminal of the switching switch; The signal indicator includes a second light-emitting diode (D2), the cathode of which is connected to the other end of the second resistor (R2), and the anode of which is connected to the first signal terminal of the wire terminal.

9. The waterproof signal junction box with overcurrent protection according to claim 1, characterized in that, The wire terminal is a screw terminal.

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