Port mating connector for inverter

Abstract

The utility model discloses a port adapter connector for an inverter. The port adapter connector comprises a connector shell and a circuit board mechanism arranged in the connector shell, the circuit board mechanism comprises a circuit board main body, a board end RJ45 interface and a board end RS485 interface, the board end RJ45 interface and the board end RS485 interface are oppositely arranged on the circuit board main body, and the access end of the board end RJ45 interface and the access end of the board end RS485 interface are respectively exposed relative to the connector shell; the board end RJ45 interface is internally provided with eight pins, the board end RS485 interface is internally provided with eight conduction locking parts which are arranged in one-to-one correspondence with the pins, and the circuit board main body is internally provided with conduction lines which are used for one-to-one conduction connection of the pins and the conduction locking parts. According to the invention, the electric connection requirement of the inverter and the electric meter CT is met, and the conduction connection is rapid, convenient and stable. The RJ45 interface and the RS485 interface are connected in a switching mode, integration is convenient, meanwhile, the injection molding shell is adopted for carrying and assembling, and the cost of the connector is greatly reduced.

Description

Technical Field

[0001] This utility model relates to a port mating connector for inverters, belonging to the technical field of inverter adapters. Background Technology

[0002] An inverter converts direct current (DC) energy (from batteries or storage batteries) into alternating current (AC) (typically 220V, 50Hz sine wave). It consists of an inverter bridge, control logic, and filter circuits. It is widely used in air conditioners, home theaters, electric grinders, power tools, sewing machines, DVDs, VCDs, computers, televisions, washing machines, range hoods, refrigerators, VCRs, massagers, fans, lighting, etc. In foreign countries, due to the high rate of car ownership, inverters can be connected to batteries to power appliances and tools while working or traveling. Car inverters with output via the cigarette lighter socket are available in power ratings of 20W, 40W, 80W, 120W to 150W. Higher power inverters require connection to the battery via cables. Connecting household appliances to the output of the power converter allows for the use of various electrical appliances inside the car. Available electrical appliances include: mobile phones, laptops, digital video cameras, cameras, lighting, electric shavers, CD players, game consoles, handheld computers, power tools, car refrigerators, and various travel, camping, and medical emergency appliances.

[0003] The inverter needs to be connected to a current transformer (CT), which is an inverter anti-backflow meter. It is primarily designed for new energy power generation systems such as grid-connected photovoltaic systems, micro-inverter systems, energy storage systems, and AC-coupled systems. It features high accuracy, small size, fast response (100ms), and easy installation. It has the function of sampling, metering, and monitoring power parameters, and can communicate with the inverter or energy management system (EMS). Based on real-time power and accumulated energy, it can perform functions such as anti-backflow, regulating power generation, and battery charging and discharging. It can perform bidirectional metering, enabling residential distributed photovoltaic energy management, and is suitable for single-phase and three-phase AC systems with a rated frequency of 50Hz.

[0004] Inverters have many applications, and there are situations where the distance between the current transformer (CT) and the inverter is too far. Moreover, the connection ports of the current transformer and the inverter are quite different. A single-phase inverter system requires one CT, while a three-phase inverter system requires three CTs. Each CT has two connection wires, one positive and one negative. The port differences make the connection and operation between the current transformer and the inverter quite complicated. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of the prior art and to propose a port connection connector for inverters to solve the problem of difficult power connection between inverters and current transformers (CTs).

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A port mating connector for an inverter includes a connector housing and a circuit board mechanism disposed within the connector housing;

[0008] The circuit board structure includes a circuit board body, a board-end RJ45 interface and a board-end RS485 interface disposed opposite to each other on the circuit board body, wherein the access end of the board-end RJ45 interface and the access end of the board-end RS485 interface are respectively exposed relative to the connector housing;

[0009] The board-side RJ45 interface has 8 pins, and the board-side RS485 interface has 8 conductive locking parts that correspond one-to-one with the pins. The main body of the circuit board has conductive lines for conductive connection between the pins and the conductive locking parts.

[0010] Preferably, the connector housing includes a first splicing housing and a second splicing housing that are detachably fitted together, and a cavity for mounting the circuit board mechanism is formed between the first splicing housing and the second splicing housing;

[0011] The first splicing housing is provided with a first limiting mechanism for internally limiting the RJ45 interface at the board end;

[0012] The second splicing housing is provided with a second limiting mechanism for internally limiting the RS485 interface at the board end.

[0013] Preferably, the first limiting mechanism includes a circuit board limiting insertion groove and an interface limiting cavity disposed in the first splicing housing, and a card slot is formed between the first splicing housing and the board end RJ45 interface;

[0014] The outer peripheral wall of the first splicing shell is provided with a foolproof mark.

[0015] Preferably, the second limiting mechanism includes a circuit board limiting groove disposed in the second splicing housing and a plurality of locking part limiting cavities disposed in a manner corresponding one-to-one with the conductive locking parts.

[0016] Preferably, the conductive locking part includes a locking post, a conductive channel disposed on the locking post, and a locking channel that is perpendicularly connected to the conductive channel. The locking channel is exposed relative to the second splicing shell, and any of the locking channels can be detachably fitted with a conductive locking device.

[0017] Preferably, the second splicing housing has a conductive mating end face, the conductive mating end face is provided with conductive mating holes and grooves that correspond one-to-one with the conductive channels, and the conductive mating end face is provided with differentiated markings for differentiating the conductive mating holes and grooves.

[0018] Preferably, an interlocking overlapping ring wall portion is provided between the first splicing shell and the second splicing shell, and the two mating walls of the interlocking overlapping ring wall portion are respectively provided with mating slots and slot platforms.

[0019] Preferably, the first splicing shell and the second splicing shell are each integrally injection molded structural parts.

[0020] Preferably, the board-side RJ45 interface and the board-side RS485 interface are integrated and fixed on the main body of the circuit board.

[0021] The beneficial effects of this utility model are mainly reflected in:

[0022] 1. Meets the electrical connection requirements of the inverter and the current transformer (CT) meter, ensuring fast, convenient, and stable connection.

[0023] 2. It is achieved through an RJ45 interface to RS485 interface adapter, which is easy to integrate. At the same time, the use of injection molded housing for mounting and assembly greatly reduces the cost of connectors.

[0024] 3. The electrical connection has a relatively attractive appearance and strong versatility, making it suitable for widespread application. Attached Figure Description

[0025] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0026] Figure 1 This is an exploded structural diagram of the port mating connector for inverters according to this utility model.

[0027] Figure 2 This is an exploded view of the port mating connector for inverters according to this utility model.

[0028] Figure 3 This is a schematic diagram of the assembly structure of the port mating connector for an inverter according to this utility model.

[0029] Figure 4 This is a schematic diagram of the structure of the first spliced ​​shell in this utility model.

[0030] Figure 5 This is a schematic diagram of the structure of the second splicing shell in this utility model.

[0031] Figure 6This is a schematic diagram of the circuit board mechanism in this utility model. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in the present application can be combined with each other.

[0034] This utility model provides a port mating connector for inverters, such as... Figures 1 to 6 As shown, it includes a connector housing 1 and a circuit board mechanism 2 disposed within the connector housing.

[0035] The circuit board mechanism 2 includes a circuit board body 3, a board-end RJ45 interface 4 and a board-end RS485 interface 5 disposed opposite to each other on the circuit board body 3, with the access end of the board-end RJ45 interface 4 and the access end of the board-end RS485 interface 5 respectively exposed relative to the connector housing.

[0036] The board-side RJ45 interface has 8 pins, and the board-side RS485 interface has 8 conductive locking parts 6 that correspond one-to-one with the pins. The main body of the circuit board has conductive lines for the one-to-one connection between the pins and the conductive locking parts.

[0037] Among them, board-side RJ45 interface 4 can be used to connect RJ45 connectors, suitable for networks built with twisted-pair cables. RJ45 interface is existing technology. Board-side RS485 interface 5 is an RS485 networking interface, which is also existing technology. The references to RJ45 and RS485 are quite clear, and will not be elaborated here.

[0038] In practical applications, the RJ45 interface 4 on the board is connected to the inverter, enabling 8-pin branch electrical connections. The RS485 interface 5 on the board is used to connect an external current meter (CT). The CT typically includes two lines, positive and negative, which are aligned. Through its eight conducting locking parts 6, it can connect one or three current meter CTs, thus meeting the needs of single-phase and three-phase application scenarios, and the connection is convenient and quick.

[0039] In one specific embodiment, the connector housing 1 includes a first splicing housing 11 and a second splicing housing 12 that are detachably coupled, and a cavity for mounting a circuit board mechanism is formed between the first splicing housing and the second splicing housing.

[0040] The first splicing housing is provided with a first limiting mechanism 7 for internally limiting the RJ45 interface at the board end.

[0041] The second splicing housing is provided with a second limiting mechanism 8 for internally limiting the RS485 interface at the board end.

[0042] Specifically, the detachable splicing design of the first splicing housing 11 and the second splicing housing 12 meets the assembly requirements of the port mating connector mounting circuit board mechanism.

[0043] Meanwhile, the first limiting mechanism 7 and the second limiting mechanism 8 can limit the respective interfaces they cooperate with, satisfying the mounting and locking stability of the circuit board mechanism and ensuring positional accuracy.

[0044] In one specific embodiment, the first limiting mechanism 7 includes a circuit board limiting insertion groove 71 and an interface limiting cavity 72 disposed in the first splicing housing, and a card slot 73 is formed between the first splicing housing and the board end RJ45 interface.

[0045] The outer peripheral wall of the first assembly shell is provided with a foolproof mark 74.

[0046] Specifically, by limiting the circuit board and interface separately, the reliability and stability of their assembly alignment are ensured, while the card slot 73 is used for locking and mating the RJ45 connector.

[0047] The error-proof mark 74 is used to identify the assembly direction between the first splicing shell and the RJ45 interface on the board end, so as to prevent the interface from being damaged due to incorrect direction.

[0048] In one specific embodiment, the second limiting mechanism 8 includes a circuit board limiting groove 81 disposed in the second splicing housing and a plurality of locking part limiting cavities 82 disposed one-to-one with the conducting locking parts.

[0049] This satisfies the separate limiting of the RS485 interface on the board end and the main body of the circuit board, making it more reliable and stable.

[0050] In one specific embodiment, the conductive locking part 6 includes a locking post 61, a conductive channel 62 disposed on the locking post 61, and a locking channel 63 that is perpendicularly connected to the conductive channel. The locking channel is exposed relative to the second splicing shell, and any locking channel is detachably fitted with a conductive locking fastener 64.

[0051] Specifically, such as Figure 1 and Figure 2 As shown, when connecting the CT of the electricity meter, its wires are connected through the conductive channel 62, and then the conductive locking fastener 64 passes through the locking channel 63 to achieve conductive connection. This operation is convenient and efficient.

[0052] In one specific embodiment, the second splicing housing has a conductive mating end face, and the conductive mating end face is provided with conductive mating hole grooves 83 that correspond one-to-one with the conductive channels. The conductive mating end face is provided with a differentiation mark 84 for differentiating the conductive mating hole grooves.

[0053] The differentiating identifier 84 can be a number or a color. For example, it can be a number from 1 to 8, where 1 and 2 are a pair, 3 and 4 are a pair, and so on. It can also be a color, for example, two red ones are a pair, two blue ones are a pair, and so on. As long as the identifiers corresponding to the paired pins are within the protection scope of this case, it is sufficient.

[0054] In one specific embodiment, an interlocking overlapping ring wall portion 9 is provided between the first splicing shell and the second splicing shell, and the two mating walls of the interlocking overlapping ring wall portion are respectively provided with mating slots 91 and slot platforms 92.

[0055] Such convenient assembly and disassembly means that other detachable structures, such as pins and bolts, can also be used. As long as the detachable connection method is met, it is within the scope of protection of this case.

[0056] In one specific embodiment, the first splicing shell and the second splicing shell are each integrally injection molded structural parts.

[0057] This facilitates mass production and reduces connector costs.

[0058] In one specific embodiment, the board-side RJ45 interface and the board-side RS485 interface are integrated and fixed on the main body of the circuit board.

[0059] Specifically, the RJ45 interface on the board can be fixed to the circuit board by means of tenon and mortise, adhesive bonding, heat fusion, etc., and its pins and the corresponding conductive lines can be connected by means of soldering, butt contact, raised contact, etc.

[0060] The conductive locking part 6 can be fixed by welding, fusion, adhesive bonding or other methods, or it can be locked by adding additional locking components.

[0061] The design that requires the board-side RJ45 interface and board-side RS485 interface to be integrated and fixed on the main body of the circuit board is within the scope of protection of this case.

[0062] The above description demonstrates that the electrical connection between the inverter and the current transformer (CT) of the meter is met, ensuring a quick, convenient, and stable connection. This is achieved through an RJ45 and RS485 interface adapter, facilitating integration. Furthermore, the use of an injection-molded housing for assembly significantly reduces connector costs. The electrical connection also boasts an aesthetically pleasing appearance and strong versatility, making it suitable for widespread application.

[0063] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent in such process, method, article, or apparatus / device.

[0064] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A port mating connector for an inverter, characterized in that: Includes a connector housing and a circuit board assembly disposed within the connector housing; The circuit board structure includes a circuit board body, a board-end RJ45 interface and a board-end RS485 interface disposed opposite to each other on the circuit board body, wherein the access end of the board-end RJ45 interface and the access end of the board-end RS485 interface are respectively exposed relative to the connector housing; The board-side RJ45 interface has 8 pins, and the board-side RS485 interface has 8 conductive locking parts that correspond one-to-one with the pins. The main body of the circuit board has conductive lines for conductive connection between the pins and the conductive locking parts.

2. The port mating connector for an inverter according to claim 1, characterized in that: The connector housing includes a first splicing housing and a second splicing housing that are detachably coupled, and a cavity for mounting the circuit board mechanism is formed between the first splicing housing and the second splicing housing; The first splicing housing is provided with a first limiting mechanism for internally limiting the RJ45 interface at the board end; The second splicing housing is provided with a second limiting mechanism for internally limiting the RS485 interface at the board end.

3. The port mating connector for an inverter according to claim 2, characterized in that: The first limiting mechanism includes a circuit board limiting insertion slot and an interface limiting cavity disposed in the first splicing housing, and a card slot is formed between the first splicing housing and the board end RJ45 interface; The outer peripheral wall of the first splicing shell is provided with a foolproof mark.

4. The port mating connector for an inverter according to claim 2, characterized in that: The second limiting mechanism includes a circuit board limiting groove disposed in the second splicing housing and a plurality of locking part limiting cavities disposed in a manner corresponding one-to-one with the conductive locking parts.

5. The port mating connector for an inverter according to claim 4, characterized in that: The conductive locking part includes a locking post, a conductive channel disposed on the locking post, and a locking channel that is perpendicularly connected to the conductive channel. The locking channel is exposed relative to the second splicing shell, and any of the locking channels can be detachably fitted with a conductive locking device.

6. The port mating connector for an inverter according to claim 5, characterized in that: The second splicing housing has a conductive mating end face, and the conductive mating end face is provided with conductive mating holes and slots that correspond one-to-one with the conductive channels. The conductive mating end face is provided with a differentiated mark for differentiating the conductive mating holes and slots.

7. The port mating connector for an inverter according to claim 2, characterized in that: The first splicing shell and the second splicing shell are provided with an insertion overlapping ring wall portion, and the two mating walls of the insertion overlapping ring wall portion are respectively provided with mating slots and slot platforms.

8. The port mating connector for an inverter according to claim 2, characterized in that: The first and second splicing shells are integral injection molded structural components.

9. The port mating connector for an inverter according to any one of claims 1 to 8, characterized in that: The board-side RJ45 interface and the board-side RS485 interface are integrated and fixed on the main body of the circuit board.

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