Heavy-current relay

Abstract

The heavy-current relay comprises a relay body, the relay body comprises power supply pins, a first power supply adapter and a second power supply adapter, the power supply pins comprise a VCC pin and a GND pin, one end of the first power supply adapter is connected with the VCC pin, one end of the second power supply adapter is connected with the GND pin, and the other end of the first power supply adapter is connected with the GND pin. The other end of the first power supply adapter and the other end of the second power supply adapter are distributed in a far-away manner, and the other end of the first power supply adapter and the other end of the second power supply adapter are respectively provided with a fastener installation position, so that a VCC pin and a GND pin related to a plurality of large-current relays installed in the charging pile are respectively connected with the other end of the first power supply adapter and the other end of the second power supply adapter. The first power supply adapter and the second power supply adapter can be mounted on different copper bars through the fastener mounting positions respectively, and the two copper bars are connected with the outside to realize required power supply input or output, so that the problem that internal contacts of the relay are affected due to continuous heating when power supply pins are mounted in a welding mode in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to a high-current relay. Background Art

[0002] A relay is an electronic control device commonly used in automated control circuits. It's essentially an "automatic switch" that controls a larger current with a smaller one, providing functions such as automatic regulation, safety protection, and circuit switching.

[0003] The relays used on the market need to control a large current during their working stage. Therefore, as the controlled current increases, the pin design of the general relay will also become relatively larger to ensure that it can withstand a larger current load, thereby ensuring the stability and reliability of the circuit.

[0004] The existing bridge relay (normally open type) is a type of relay, and its applicable occasion involves use in charging piles. Specifically, during the use of the bridge relay, depending on the size of the charging pile, 5, 10, or 50 high-current relays (the current control of a single relay is generally a high current control such as 150A or 300A) are involved. They are welded in parallel to a circuit board or copper busbar. That is, the charging pile involves a large circuit board with several copper busbars laid on it, and the power pins and signal pins involved in the high-current relays are directly plugged into the large circuit board or copper busbar and welded separately.

[0005] However, in the actual welding process of several high-current relays on circuit boards or copper busbars, it was found that since the current controlled by the high-current relay is 150A or 300A, its power pin part is generally too large, which makes the welding process very difficult. In addition, during the welding process, the power pin will be hot for a long time, which will cause the contacts inside the relay to change. At the same time, after the welding is completed, it will be difficult to disassemble. When it is used in a charging pile, if a relay is damaged, the copper busbar or circuit board with the relay in the charging pile needs to be replaced. Summary of the Invention

[0006] In view of the above-mentioned deficiencies, the present invention provides a high-current relay that can realize convenient installation of a power pin in a charging pile.

[0007] In order to achieve the above objectives, the present invention adopts a high-current relay, including a relay body, the relay body including a power pin, the power pin including a VCC pin and a GND pin, the relay body also including a first power adapter and a second power adapter, one end of the first power adapter is connected to the VCC pin, one end of the second power adapter is connected to the GND pin, the other end of the first power adapter is distributed far away from the other end of the second power adapter, and the other end of the first power adapter and the other end of the second power adapter are respectively provided with a fastener installation position.

[0008] The present invention is further configured such that the first power adapter and the VCC pin, as well as the second power adapter and the GND pin, are connected via fasteners; the first power adapter and the VCC pin, as well as the second power adapter and the GND pin, are connected via solder paste, and then the connection between the two is formed by external welding equipment. The above are two possible connection schemes between the first power adapter and the VCC pin, and between the second power adapter and the GND pin. While ensuring connection reliability, the connection between the power pins and the two power adapters is not limited to a single method. In addition, this avoids the connection difficulties that may arise from conventional soldering methods, or the situation where heat affects the contacts within the relay, thereby ensuring the reliability of the design of the present invention.

[0009] The utility model is further configured such that the first power adapter has a Z-shaped structure, the Z-shaped first power adapter comprising a first transverse plate, a second transverse plate, and a longitudinal connecting plate connected to the first and second transverse plates, the first transverse plate of the Z-shaped first power adapter being connected to the VCC pin, and the second transverse plate of the Z-shaped first power adapter being arranged in a staggered manner and parallel to the VCC pin;

[0010] The second power adapter is in a flat plate structure; one end of the flat plate second power adapter is connected to the GND pin, and the other end extends toward a side away from the GND pin.

[0011] Compared with the existing ones, the beneficial effects of the present invention are as follows: by involving two power adapters on the power pin of the high current relay, and the two power adapters are connected to the VCC pin and the GND pin of the power pin respectively;

[0012] The first power adapter adopts a Z-shaped structure, wherein the first power adapter is a Z-shaped structure, and the Z-shaped first power adapter includes a first transverse plate, a second transverse plate, and a longitudinal connecting plate connected to the first and second transverse plates, the first transverse plate of the Z-shaped first power adapter is connected to the VCC pin, and the second power adapter adopts a flat plate structure, wherein the second transverse plate of the Z-shaped first power adapter is arranged in a staggered manner and parallel to the VCC pin, and one end of the flat plate second power adapter is connected to the GND pin, and the other end extends toward a side away from the GND pin, thereby making When several high-current relays are used in high-current situations such as charging piles, they can be installed on a copper busbar through the VCC pins of the several high-current relays and the first power adapter through the fastener mounting position. The GND pins of the several high-current relays can be installed on another copper busbar through the second power adapter through the fastener mounting position. The two copper buses are then connected to the outside world to achieve the required power input or output, thereby solving the problem of affecting the internal contacts of the relay due to continuous heat when the power pins are installed by welding in the existing method.

[0013] At the same time, if a high-current relay in several charging piles is damaged, it can be easily disassembled and replaced. At the same time, the GND pin and the VCC pin are installed on different copper bars through two power adapters, which can make the creepage distance between the GND pin and the VCC pin more reliable. In addition, the signal pins involved in the high-current relay can be connected together through external leads, and unified control can be performed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional schematic diagram of a high-current relay according to a specific embodiment of the present utility model;

[0015] Figure 2 This is a schematic diagram of an explosion of a high current relay according to a specific embodiment of the present utility model;

[0016] Figure 3 It is a three-dimensional schematic diagram of the first power adapter of a specific embodiment of the utility model. DETAILED DESCRIPTION

[0017] like Figure 1-3As shown, a specific embodiment of the present invention is a high-current relay, including a relay body 1, the relay body 1 including power pins, the power pins including a VCC pin 3 and a GND pin 2, the relay body 1 also including a first power adapter 4 and a second power adapter 5, one end of the first power adapter 4 is connected to the VCC pin 3, one end of the second power adapter 5 is connected to the GND pin 2, the other end of the first power adapter 4 and the other end of the second power adapter 5 are distributed far apart, and the other end of the first power adapter 4 and the other end of the second power adapter 5 are respectively provided with a fastener installation position.

[0018] The first power adapter 4 and the VCC pin 3, as well as the second power adapter 5 and the GND pin 2, are connected via fasteners. The first power adapter 4 and the VCC pin 3, as well as the second power adapter 5 and the GND pin 2, are connected via solder paste, and then external welding equipment forms a connection between the two. These are two possible connection schemes for the first power adapter 4 and the VCC pin 3, and the second power adapter 5 and the GND pin 2. These ensure connection reliability while also ensuring that the connection between the power pins and the two power adapters is not limited to a single method. Furthermore, these schemes avoid connection difficulties that might arise with conventional soldering, or the possibility of heat affecting the contacts within the relay, thereby ensuring the reliability of the design of the present invention.

[0019] The first power adapter 4 has a Z-shaped structure, comprising a first transverse plate 51, a second transverse plate 52, and a longitudinal connecting plate 53 connected to the first and second transverse plates. The first transverse plate 51 of the Z-shaped first power adapter 4 is connected to the VCC pin 3, and the second transverse plate 52 of the Z-shaped first power adapter 4 is arranged in a staggered manner and parallel to the VCC pin 3. The second power adapter 5 has a flat plate structure. One end of the flat plate-type second power adapter 5 is connected to the GND pin 2, and the other end extends toward a side away from the GND pin 2.

[0020] The above-mentioned method involves two power adapters on the power pin of the high-current relay, and the two power adapters are connected to the VCC pin 3 and the GND pin 2 of the power pin respectively; and by adopting a Z-shaped structure for the first power adapter 4, wherein the first power adapter 4 is a Z-shaped structure, and synchronously by the Z-shaped first power adapter 4 including a first transverse plate 51, a second transverse plate 52, and a longitudinal connecting plate 53 connected to the first and second transverse plates, the first transverse plate 51 in the Z-shaped first power adapter 4 is connected to the VCC pin 3, and the second power adapter 5 adopts a flat plate structure, wherein the second transverse plate 52 in the Z-shaped first power adapter 4 is arranged in a staggered manner and parallel to the VCC pin 3, and the flat plate second power adapter 5 is connected to the VCC pin 3. One end of the source adapter 5 is connected to the GND pin 2, and the other end extends toward a side away from the GND pin 2. As a result, when several high-current relays are used in high-current situations such as charging piles, they can be installed on a copper busbar through the VCC pins 3 on the several high-current relays and the first power adapter 4 through the fastener mounting position. Meanwhile, the GND pins 2 on the several high-current relays can be installed on another copper busbar through the second power adapter 5 through the fastener mounting position. The two copper buses are then connected to the outside world to achieve the required power input or output, thereby solving the problem of continuous heat generation affecting the internal contacts of the relay when the power pins are installed by welding in the existing method.

[0021] At the same time, if a high-current relay in several charging piles is damaged, it can be easily disassembled and replaced. At the same time, the GND pin 2 and the VCC pin 3 are installed on different copper bars through two power adapters, which can make the creepage distance between the GND pin 2 and the VCC pin 3 more reliable. In addition, the signal pins involved in the high-current relay can be connected together through external leads, and unified control can be performed.

Claims

1. A high-current relay, comprising a relay body, wherein the relay body comprises power pins, wherein the power pins comprise a VCC pin and a GND pin, wherein: The relay body also includes a first power adapter and a second power adapter. One end of the first power adapter is connected to the VCC pin, and one end of the second power adapter is connected to the GND pin. The other end of the first power adapter and the other end of the second power adapter are distributed far apart, and the other end of the first power adapter and the other end of the second power adapter are respectively provided with a fastener installation position.

2. The high current relay according to claim 1, characterized in that: The first power adapter and the VCC pin, as well as the second power adapter and the GND pin are connected via fasteners respectively.

3. The high current relay according to claim 1, characterized in that: The first power adapter and the VCC pin, as well as the second power adapter and the GND pin are connected via solder paste, and then external soldering equipment is used to form a connection between the two.

4. The high current relay according to claim 1, 2 or 3, characterized in that: The first power adapter has a Z-shaped structure and includes a first transverse plate, a second transverse plate, and a longitudinal connecting plate connected to the first and second transverse plates. The first transverse plate of the Z-shaped first power adapter is connected to the VCC pin, and the second transverse plate of the Z-shaped first power adapter is arranged in a staggered manner and parallel to the VCC pin. The second power adapter is in a flat plate structure; one end of the flat plate second power adapter is connected to the GND pin, and the other end extends toward a side away from the GND pin.

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