High-voltage direct-current relay with voltage detection function

Abstract

The utility model discloses a high voltage direct current relay with voltage detection, comprising a relay housing, the relay housing is internally provided with an installation groove, the installation groove is internally provided with two groups of main terminals, the bottom of each main terminal is provided with a power connection column, and the power connection columns are connected with a circuit in the relay housing. The interior of the main terminal is provided with a wiring hole, and the wiring hole is electrically connected with the power connection column. When the medicine dispensing device is used, bottled medicine particles are guided into the medicine bin, the medicine can slide into the medicine outlet, at the moment, the pressing block plays a role in blocking, the pressing block is pressed to enable the quantitative hole to move to be aligned with the medicine outlet, the medicine falls into the quantitative hole, only one medicine particle can fall into the quantitative hole, and the pressing block is loosened to reset through the spring column type pressing block. The quantitative hole and the medicine leaking opening are mutually aligned, so that medicine falls into the medicine box, one medicine can be discharged by pressing each time, accurate medicine discharging can be achieved, and medicine pollution is avoided.

Description

Technical Field

[0001] This utility model relates to the field of high voltage DC relay technology, and more specifically to a high voltage DC relay with voltage detection. Background Technology

[0002] High-voltage DC relays have been used in the new energy market for many years. Although their performance can basically meet the needs of customers, with the continuous improvement of the requirements for high-voltage and high-current charging modes, especially the requirements for the safety of DC relays, higher requirements have been put forward.

[0003] Currently available high-voltage DC relays cannot provide real-time feedback on the current in a circuit. When a short circuit occurs or the relay contacts stick together, excessive short-circuit current can burn out electrical equipment and endanger personnel safety. Therefore, a new technical solution is needed to address this issue. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a high-voltage DC relay with voltage detection to solve the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-voltage DC relay with voltage detection, comprising: a relay housing, an internal mounting groove with two sets of main terminals, a grounding post at the bottom of each main terminal connected to a circuit inside the relay housing, a wiring hole inside each main terminal electrically connected to the grounding post, a snap-fit ​​groove on the outer surface of each main terminal with a snap-fit ​​ring inside the groove, the snap-fit ​​ring being fitted inside the snap-fit ​​ring, a high-voltage detection signal line on the side of the snap-fit ​​ring with a riveting part at the connection between the high-voltage detection signal line and the snap-fit ​​ring, the high-voltage detection signal line being fixedly connected to the snap-fit ​​ring through the riveting part, and the high-voltage detection signal line extending to the outside of the relay housing.

[0006] In a preferred embodiment of this utility model, mounting bases are provided on both sides of the relay housing.

[0007] In a preferred embodiment of this utility model, a relay control line is provided inside the relay housing and is connected to the control circuit inside the relay housing.

[0008] In a preferred embodiment of the present invention, the bottom of the high-voltage detection signal line is provided with a bend and a J-shaped structure is formed by the bend.

[0009] In a preferred embodiment of this utility model, the mounting groove of the relay body is filled with sealing epoxy resin adhesive.

[0010] In a preferred embodiment of this utility model, the snap ring is made of phosphor bronze and is connected to the main terminal with an interference fit.

[0011] In a preferred embodiment of this utility model, the surface of the box is provided with a label and the label corresponds to the pull-out box.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention connects a voltage detection line to each of the load output terminals of the relay. When the relay is working, these two detection lines can be used to sample the voltage drop across the relay. When the voltage drop exceeds a certain rated value, it indicates that a large current has appeared in the circuit. The controller can then promptly output an alarm based on this feedback signal to cut off the circuit. This method is very important for monitoring and protecting high-voltage DC circuits because it can help detect overload conditions and take timely measures to avoid damage. The two voltage detection lines are riveted to the retaining ring. During production, the retaining ring makes firm contact with the relay's main contacts through an interference fit. The manufacturing process is relatively simple, stable, and eliminates the risk of poor contact. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the relay without encapsulation epoxy resin adhesive according to this utility model;

[0015] Figure 2 This is a schematic diagram of the interference fit structure of the snap ring and main terminal of this utility model.

[0016] In the diagram: 1. Relay housing; 2. Mounting base; 3. Mounting slot; 4. Main terminal; 5. Relay control line; 6. High voltage detection signal line; 7. Wiring hole; 8. Bending part; 9. Snap-fit ​​ring; 10. Snap-fit ​​slot; 11. Electrical connection post; 12. Riveting part. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-2 This utility model provides a technical solution: a high-voltage DC relay with voltage detection.

[0019] Regarding the aforementioned problem: Current high-voltage DC relay products on the market cannot provide real-time feedback on the current magnitude in the circuit. When a short circuit occurs in the circuit or the relay contacts stick together, excessive short-circuit current can burn out electrical equipment and endanger personnel safety.

[0020] The solution is as follows: A high-voltage DC relay with voltage detection includes: a relay housing 1, an internal mounting groove 3 with two sets of main terminals 4, a bottom terminal 11 connected to the circuit inside the relay housing 1, a wiring hole 7 electrically connected to the terminal 11, a snap-fit ​​groove 10 on the outer surface of the main terminals 4 with a snap-fit ​​ring 9 inside, the snap-fit ​​ring 9 being fitted inside the main terminals 4, a high-voltage detection signal line 6 on the side of the snap-fit ​​ring 9 with a riveting part 12 at the connection between the high-voltage detection signal line 6 and the snap-fit ​​ring 9, the high-voltage detection signal line 6 being connected to the snap-fit ​​ring 9 via the riveting part 12. The snap rings 9 are fixedly connected. The high-voltage detection signal line 6 extends to the outside of the relay housing 1. A voltage detection line is connected to each load output terminal of the relay. When the relay is working, these two detection lines can be used to sample the voltage drop across the relay. When the voltage drop is greater than a certain rated value, it indicates that a large current has appeared in the circuit. The controller can output an alarm in time based on this feedback signal to cut off the circuit. This method is very important for monitoring and protecting high-voltage DC circuits because it can help detect overload conditions and take timely measures to avoid damage. The two voltage detection lines are riveted to the snap rings 9. During production, the snap rings 9 are firmly in contact with the main contacts of the relay through interference fit. The manufacturing process is relatively simple and stable, with no risk of poor contact.

[0021] Further improvements, such as Figure 1 As shown: The relay housing 1 is provided with mounting bases 2 on both sides. This arrangement facilitates the installation and fixation of the relay, allowing the relay to be easily integrated into various circuit systems, thereby improving the flexibility and convenience of the relay in use.

[0022] Further improvements, such as Figure 1 As shown: The relay housing 1 is provided with a relay control line 5 inside, and the relay control line 5 is connected to the internal control circuit of the relay housing 1. The arrangement of the relay control line 5 allows external control signals to be easily transmitted to the inside of the relay, thereby realizing precise control of the relay's working state and improving the relay's controllability and response speed.

[0023] Further improvements, such as Figure 2As shown: The bottom of the high-voltage detection signal line 6 is provided with a bending part 8, and a J-shaped structure is formed by the bending part 8. The design of the J-shaped structure can increase the flexibility and durability of the high-voltage detection signal line 6, avoid damage due to bending or pulling during use, and also help to maintain a stable connection of the signal line and ensure accurate transmission of the detection signal.

[0024] Further improvements, such as Figure 1 As shown: The mounting groove 3 of the relay body is filled with sealing epoxy resin glue. The filling of the sealing epoxy resin glue can enhance the sealing and insulation of the relay, prevent external moisture, dust or corrosive substances from entering the relay, thereby extending the service life of the relay and improving its reliability.

[0025] Further improvements, such as Figure 2 As shown: The snap ring 9 is made of phosphor bronze and is connected to the main terminal 4 with an interference fit. Phosphor bronze has good conductivity and corrosion resistance. The interference fit connection ensures tight contact between the snap ring 9 and the main terminal 4, thereby improving the stability and reliability of the connection and reducing the risk of poor contact.

[0026] Working Principle: This utility model fixes the relay to a predetermined position via the mounting base 2, ensuring the relay's stability and reliability. The external power supply line and load line are connected to the relay's wiring holes 7 respectively, ensuring correct circuit connections. The high-voltage detection signal line 6 is connected to the controller's input terminal to monitor the voltage drop across the relay in real time. Correct installation and wiring ensure the relay's normal operation and provide a foundation for subsequent voltage detection and circuit protection. When the relay operates, the high-voltage detection signal line 6 begins sampling the voltage drop across the relay. If the voltage drop exceeds the preset rated value, it indicates a large current or abnormal situation in the circuit. At this time, the high-voltage detection signal line 6 transmits the abnormal signal to the controller. By detecting the voltage drop in real time, abnormal situations in the circuit can be detected promptly, providing timely feedback signals for circuit protection. Upon receiving the abnormal signal, the controller immediately outputs an alarm to remind operators to pay attention to circuit safety. Simultaneously, the controller controls the relay to cut off the circuit, preventing excessive short-circuit current from burning out electrical equipment or endangering personnel safety. Through timely alarm output and circuit cutoff, the safety of the circuit and equipment is effectively protected, avoiding potential safety hazards and losses.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can refer to mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc., are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0029] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention 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 embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high voltage DC relay with voltage detection, characterized by: include: The relay housing (1) has a mounting groove (3) inside and two sets of main terminals (4) inside. Each main terminal (4) has a contact post (11) at its bottom, which is connected to the circuit inside the relay housing (1). Each main terminal (4) has a wiring hole (7) inside, which is electrically connected to the contact post (11). The outer surface of the main terminal (4) has a snap-fit ​​groove (1). 0) A snap ring (9) is provided inside the snap ring groove (10). The snap ring (9) is sleeved inside the snap ring (9). A high voltage detection signal line (6) is provided on the side of the snap ring (9). A riveting part (12) is provided at the connection between the high voltage detection signal line (6) and the snap ring (9). The high voltage detection signal line (6) is fixedly connected to the snap ring (9) through the riveting part (12). The high voltage detection signal line (6) extends to the outside of the relay housing (1).

2. A high voltage DC relay with voltage detection as claimed in claim 1, characterized in that: The relay housing (1) is provided with mounting bases (2) on both sides.

3. A high voltage DC relay with voltage detection as claimed in claim 1, characterized in that: The relay housing (1) is provided with a relay control line (5) inside, and the relay control line (5) is connected to the control circuit inside the relay housing (1).

4. A high voltage DC relay with voltage detection as claimed in claim 1, characterized in that: The bottom of the high-voltage detection signal line (6) is provided with a bend (8) and a J-shaped structure is formed by the bend (8).

5. A high-voltage DC relay with voltage detection according to claim 1, characterized in that: The mounting slot (3) of the relay body is filled with sealing epoxy resin glue.

6. A high-voltage DC relay with voltage detection according to claim 1, characterized in that: The snap ring (9) is made of phosphor bronze and is interference-fitted with the main terminal (4).

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