Relay with overcurrent protection

Abstract

The utility model relates to the technical field of relays, and discloses a relay with overcurrent protection, which comprises a relay main body and a clamping component arranged on the side surface of the relay main body. The bottom of the relay main body is fixedly provided with a relay bottom plate, the right side of the top of the relay bottom plate is fixedly provided with a wiring port, and the top of the relay main body is provided with an over-current protection device; the clamping component comprises four protective shell plates, the four protective shell plates are arranged at the four corner angles of the top of the relay body respectively, and the bottoms of every two adjacent protective shell plates are provided with a common cooling fin. According to the relay with the over-current protection function, through the design of the cooling fins between the adjacent protective shell plates, the heat dissipation performance of the relay is remarkably improved, the cooling fins are tightly attached to the sealing shell on the side face of the relay body, it is ensured that heat can be rapidly and effectively dissipated to the surrounding environment, and therefore stable work of the relay is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of relays, in particular to a relay with overcurrent protection. Background Art

[0002] With the development and increasing complexity of power systems, the demand for protection of circuits and equipment is also increasing. An overcurrent relay is an electrical protection device designed to cut off the power supply to a circuit, device or machine in the event of an overload or fault, thereby protecting the circuit and equipment from damage. This device usually consists of a manual circuit breaker or contactor and a current sensing relay interlocked with it.

[0003] However, the reliability of existing overcurrent relays is poor. Due to various reasons such as improper heat dissipation, components may age and be mechanically damaged, which may affect the reliability of the overcurrent relay and thus affect its normal operation. Therefore, a relay with overcurrent protection is proposed. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a relay with overcurrent protection, which has the advantages of stable heat dissipation and overall stable structure, and solves the problem of improper heat dissipation and excessive heat dissipation leading to unstable structure and poor sealing.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose of stable heat dissipation and overall structural stability, the utility model provides the following technical solutions: a relay with overcurrent protection, comprising a relay body and a clamping component, wherein the clamping component is arranged on the side of the relay body;

[0008] A relay base plate is fixedly installed at the bottom of the relay body, an indicator plate is fixedly installed on the top left side of the relay base plate, a wiring port is fixedly installed on the top right side of the relay base plate, and an overcurrent protection device is arranged on the top of the relay body;

[0009] The engaging component comprises four protective shell plates, which are respectively arranged at four corners of the top of the relay body, and a common heat sink is arranged at the bottom of two adjacent protective shell plates.

[0010] As a preferred technical solution of the utility model, a sealing shell is provided on the outer surface of the relay body, the sealing shell covers the top of the relay bottom plate, and the left side of the wiring port is connected to the inner side of the relay body.

[0011] The beneficial effects of the above preferred technical solution are: the relay body and the relay base plate are stably installed, and the sealed shell is protected, so that the relay has higher reliability and durability.

[0012] As a preferred technical solution of the utility model, an overcurrent protection device is threadedly connected to the center of the top of the relay body, and a reset button that can be connected to the inner side of the relay body is arranged on the top of the overcurrent protection device.

[0013] The beneficial effect of the above preferred technical solution is that the threaded connection method enables the overcurrent protection device to be easily installed and disassembled from the relay body.

[0014] As a preferred technical solution of the utility model, protective shell plates are fixedly installed at the four corners of the top of the relay body, the protective shell plates are "L"-shaped, and fixing bolts connected to the relay body are fixedly installed on the top of the protective shell plates.

[0015] The beneficial effects of the above-mentioned preferred technical solution are: the design of providing protective shell plates at the four corners of the top of the relay body and providing heat sinks at its bottom not only enhances the safety protection and heat dissipation performance of the relay, but also optimizes the overall structural design and improves the stability and reliability of the equipment.

[0016] As a preferred technical solution of the utility model, a fixing frame plate is fitted on the side of the protective shell plate, and fixing bolts are also fixedly installed on the side of the fixing frame plate, and the fixing bolts connect the fixing frame plate and the protective shell plate.

[0017] The beneficial effect of the above preferred technical solution is that the use of the fixed frame plate further strengthens the connection between the protective shell plate and the relay body, thereby improving the stability of the overall structure.

[0018] As a preferred technical solution of the utility model, the bottoms of the fixed frame plate and the protective shell plate are both clamped with positioning blocks, and a common expansion plate is fixedly installed at the bottoms of the two positioning blocks. A positioning clamping groove is opened at the bottom of the expansion plate, and the heat sink can be clamped on the inner side of the positioning clamping groove, and the heat sink can be fitted with the sealing shell on the side of the relay body.

[0019] The beneficial effect of the above preferred technical solution is that the coordinated use of the positioning block and the positioning engaging groove can ensure that the heat sink can accurately fit with the sealing shell on the side of the relay body during installation, thereby improving the installation accuracy and stability.

[0020] (III) Beneficial effects

[0021] Compared with the prior art, the utility model provides a relay with overcurrent protection, which has the following beneficial effects:

[0022] The relay with overcurrent protection significantly improves the heat dissipation performance of the relay through the heat sink design between adjacent protective shell plates. The heat sink fits tightly with the sealing shell on the side of the relay body, ensuring that the heat can be quickly and effectively dissipated to the surrounding environment, thereby maintaining the stable operation of the relay. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the planar structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the top view structure of the utility model;

[0025] Figure 3 For this utility model Figure 1 Schematic diagram of the structure of part A.

[0026] In the figure: 1. Relay base plate; 2. Relay body; 3. Wiring port; 4. Indicator plate; 5. Sealed shell; 6. Overcurrent protection device; 7. Protective shell plate; 8. Heat sink; 9. Fixed frame plate; 10. Fixing bolt; 11. Positioning block; 12. Positioning snap-in groove. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] See also Figure 1-3 A relay with overcurrent protection includes a relay body 2 and a snap-fit ​​component, wherein the snap-fit ​​component is arranged on the side of the relay body 2.

[0031] A relay base plate 1 is fixedly installed at the bottom of the relay body 2, an indicator plate 4 is fixedly installed on the top left side of the relay base plate 1, a wiring port 3 is fixedly installed on the top right side of the relay base plate 1, and an overcurrent protection device 6 is arranged on the top of the relay body 2.

[0032] In this embodiment, a sealing shell 5 is provided on the outer surface of the relay body 2 , and the sealing shell 5 covers the top of the relay base plate 1 . The left side of the wiring port 3 is connected to the inner side of the relay body 2 .

[0033] It should be noted that the stable installation of the relay body 2 and the relay base plate 1, as well as the protection of the sealed shell 5, make the relay have higher reliability and durability. These designs can reduce the impact of the external environment on the relay, reduce the failure rate, and improve the stability and reliability of the system.

[0034] In this embodiment, an overcurrent protection device 6 is threadedly connected to the center of the top of the relay body 2 , and a reset button that can be connected to the inner side of the relay body 2 is arranged on the top of the overcurrent protection device 6 .

[0035] It should be noted that the threaded connection method enables the overcurrent protection device 6 to be easily installed and disassembled from the relay body 2. When the overcurrent protection device needs to be replaced or repaired, the user can easily remove it from the relay body and then install a new or repaired device, which greatly improves the convenience of maintenance.

[0036] The reset button is connected to the inner side of the relay body 2, ensuring the accuracy and reliability of the reset operation.

[0037] The engaging component comprises four protective shell plates 7 , which are respectively arranged at four corners of the top of the relay body 2 , and a common heat sink 8 is arranged at the bottom of two adjacent protective shell plates 7 .

[0038] It should be noted that the provision of the protective shell plate 7 can effectively protect the top and corners of the relay body 2, preventing it from being physically damaged by collision, scratches, etc. during installation, use or maintenance. This protection is of great significance for ensuring the normal operation of the relay and extending its service life.

[0039] In this embodiment, protective shell plates 7 are fixedly installed at the four corners of the top of the relay body 2. The protective shell plate 7 is "L"-shaped, and fixing bolts 10 connected to the relay body 2 are fixedly installed on the top of the protective shell plate 7.

[0040] It should be noted that the "L"-shaped protective shell plate 7 not only has a protective function, but also can match the top shape of the relay body 2, thereby improving the stability and aesthetics of the overall structure. At the same time, the protective shell plate 7 is fixedly connected to the relay body 2 by fixing bolts 10, which can further ensure the stability and reliability of the protective shell plate.

[0041] In this embodiment, a fixing frame plate 9 is fitted on the side of the protective shell plate 7 , and a fixing bolt 10 is also fixedly installed on the side of the fixing frame plate 9 , and the fixing bolt 10 connects the fixing frame plate 9 and the protective shell plate 7 .

[0042] It should be noted that the use of the fixing frame plate 9 further strengthens the connection between the protective shell plate 7 and the relay body 2, and improves the stability of the overall structure. This design can ensure that the relay is not easily loosened or damaged when subjected to external impact or vibration, thereby enhancing its durability and reliability.

[0043] The fixing frame plate 9 and the protective shell plate 7 are tightly connected by the fixing bolts 10, making the installation and removal process simpler and more efficient. The user can easily complete the installation or removal of the protective shell plate 7 by tightening or loosening the fixing bolts 10, which is convenient for daily maintenance and replacement.

[0044] In this embodiment, the bottom of the fixed frame plate 9 and the protective shell plate 7 are both clamped with positioning blocks 11, and a common expansion board is fixedly installed at the bottom of the two positioning blocks 11. The bottom of the expansion board is provided with a positioning clamping groove 12, and the heat sink 8 can be clamped on the inner side of the positioning clamping groove 12, and the heat sink 8 can be fitted with the sealing shell 5 on the side of the relay body 2.

[0045] It should be noted that the coordinated use of the positioning block 11 and the positioning engagement groove 12 can ensure that the heat sink 8 can accurately fit with the sealing shell 5 on the side of the relay body 2 during installation, thereby improving the installation accuracy and stability.

[0046] Installing the heat sink 8 by snap-fitting can greatly simplify the installation process and improve installation efficiency. The user only needs to align the heat sink 8 with the positioning snap-fit ​​groove 12 and press lightly to complete the installation without using additional tools or complicated operations.

[0047] The close fit between the heat sink 8 and the sealing shell 5 can ensure that the heat can be quickly and effectively transferred to the heat sink 8 and dissipated to the surrounding environment through the heat sink 8. This design can significantly improve the heat dissipation effect of the relay and reduce the risk of damage due to overheating.

[0048] The beneficial effects of the above embodiments are:

[0049] The heat dissipation performance of the relay is significantly improved by designing the heat sink 8 between adjacent protective shell plates 7. The heat sink fits tightly with the sealing shell 5 on the side of the relay body 2, ensuring that heat can be quickly and effectively dissipated to the surrounding environment, thereby maintaining stable operation of the relay.

[0050] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A relay with overcurrent protection, comprising a relay body (2) and a snap-fit ​​component, wherein the snap-fit ​​component is arranged on a side of the relay body (2); Features: A relay base plate (1) is fixedly mounted on the bottom of the relay body (2), an indicator plate (4) is fixedly mounted on the left side of the top of the relay base plate (1), a wiring port (3) is fixedly mounted on the right side of the top of the relay base plate (1), and an overcurrent protection device (6) is arranged on the top of the relay body (2); The engaging component comprises four protective shell plates (7), the four protective shell plates (7) being respectively arranged at four corners of the top of the relay body (2), and a common heat sink (8) being arranged at the bottom of two adjacent protective shell plates (7).

2. A relay with overcurrent protection according to claim 1, characterized in that: The outer surface of the relay body (2) is provided with a sealing shell (5), the sealing shell (5) covers the top of the relay base plate (1), and the left side of the wiring port (3) is connected to the inner side of the relay body (2).

3. A relay with overcurrent protection according to claim 1, characterized in that: An overcurrent protection device (6) is threadedly connected at the center of the top of the relay body (2), and a reset button that can be connected to the inner side of the relay body (2) is provided at the top of the overcurrent protection device (6).

4. A relay with overcurrent protection according to claim 2, characterized in that: Protective shell plates (7) are fixedly mounted at the four corners of the top of the relay body (2); the protective shell plates (7) are in an "L" shape; and fixing bolts (10) connected to the relay body (2) are fixedly mounted on the top of the protective shell plates (7).

5. A relay with overcurrent protection according to claim 4, characterized in that: A fixing frame plate (9) is fitted on the side of the protective shell plate (7), and a fixing bolt (10) is also fixedly installed on the side of the fixing frame plate (9), and the fixing bolt (10) connects the fixing frame plate (9) and the protective shell plate (7).

6. A relay with overcurrent protection according to claim 5, characterized in that: The bottoms of the fixed frame plate (9) and the protective shell plate (7) are both snap-fitted with positioning blocks (11), the bottoms of the two positioning blocks (11) are fixedly mounted with a common expansion board, the bottom of the expansion board is provided with a positioning snap-fit ​​groove (12), the heat sink (8) can be snap-fitted to the inner side of the positioning snap-fit ​​groove (12), and the heat sink (8) can fit with the sealing shell (5) on the side of the relay body (2).

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