Control relay with interface protection mechanism
By designing retractable protective covers and seals on the control relay, the problem that the relay pins are prone to dirty attachment or rust when not in use, and the function of effective protection of the pins and rapid installation and use is achieved.
Patent Information
- Application Number
- CN202421939739.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-08-12
AI Technical Summary
The pins of the control relay are easily stained or rusted when not in use, affecting its normal operation.
A control relay with an interface protection mechanism is designed, and a retractable protective cover protects the pins inside to prevent dirt and moisture from entering, and ensures that the pins are in a closed environment when not in use through the fit of the seal and the elastic member.
It effectively avoids the relay pins being dirty or rusted when not in use, ensures the integrity of the pins, and is quickly installed and used when needed.
Smart Images
Figure CN222966016U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of relays, in particular to a control relay with an interface protection mechanism. Background Technique
[0002] A control relay is an electrical component that can automatically connect or disconnect a circuit. It is suitable for remotely connecting and disconnecting small-capacity AC and DC control circuits, and is used for control, protection, and signal conversion in a power drive system. The input quantity of a control relay is usually an electrical quantity such as current or voltage, and can also be a non-electrical quantity such as temperature, pressure, or speed. Its output quantity is the electrical signal emitted when the contact operates or the parameter change of the output circuit. The working principle of a control relay is mainly based on the electromagnetic effect. When the current in the control circuit flows through the coil of the relay, a magnetic field will be generated. This magnetic field will attract the iron core, causing the relay switch to close, thereby controlling the on and off of the circuit. When the current in the control circuit disappears, the magnetic field disappears, and the iron core returns to its original position under the action of the spring, and the relay switch disconnects, and the circuit also disconnects accordingly.
[0003] When in use, the relay is connected to the device through pins. After production, the pins of the relay are mostly exposed outside. The pins of the relay may rust when exposed outside for a long time. At the same time, dirt may also adhere to the outer wall of the pins, affecting the normal operation of the relay. Control relays are widely used in fields such as electrical control, mechanical automation, and industrial automation. When used in engineering, since a large amount of oil needs to be applied to the machinery in the environment, when the relay is placed, it is more likely to be attached with oil stains due to the surrounding environment, affecting the subsequent use of the relay. Summary of the Utility Model
[0004] Aiming at the problems in the prior art, the utility model provides a control relay with an interface protection mechanism, which can protect the pins of the relay when the relay is not in use, and avoid dirt or corrosion on the outer wall of the pins of the relay when not in use.
[0005] The technical solution adopted by the utility model to solve its technical problems is: a control relay with an interface protection mechanism, including a relay body. One side of the relay body is provided with pins. A protective cover for protecting the pins is arranged on the side of the relay body close to the pins. The protective cover is arranged in a wave shape. A receiving groove is opened on the side wall of the relay body close to the pins. Push the protective cover so that the protective cover enters the receiving groove, and the pins are exposed.
[0006] Specifically, a sealing member is fixedly connected to the outside of the side of the protective cover away from the relay body. The sealing member includes a mounting seat, and a sliding hole is arranged in the middle of the mounting seat. The sliding hole is arranged in a penetrating manner with the protective cover.
[0007] Specifically, a side rotating plate is rotatably provided on the inner wall of the mounting seat, and torsion springs are provided on both sides of the side rotating plate.
[0008] Specifically, the side rotating plates are made of rubber material, and the two side rotating plates can seal the sliding hole.
[0009] Specifically, a card connector is fixedly connected to one side of the relay body close to the protective cover, a sliding groove is provided on one side of the card connector, a plug-in block is slidably provided in the sliding groove, an elastic member is provided in the sliding groove, one end of the elastic member is fixedly connected to the inner wall of the sliding groove, and the elastic member is fixedly connected to the inner wall of the plug-in block.
[0010] Specifically, a protective plate is connected to one end of the protective cover away from the relay body, a connecting frame is fixedly connected to the side of the protective plate close to the clamping piece, a clearance hole is opened on one side of the connecting frame, and the clearance hole is adapted to the plug-in block.
[0011] Beneficial effects of the utility model:
[0012] (1) The control relay with an interface protection mechanism described in the utility model has a pin of the relay kept in a protective cover before use, compared with the prior art, to prevent the pin from being exposed to the air and being attached with dirt or rusted in a humid environment, thereby ensuring that the pin of the relay can be kept intact when not in use. The protective cover is retractable. When the relay needs to be installed and used, the protective cover is pushed into the storage slot for storage, and the pin can be exposed to the connection part for plugging and use.
[0013] (2) The control relay with an interface protection mechanism described in the utility model, when the protective cover is pushed to move into the storage groove, the protection plate will move synchronously, and the connection frame set at the bottom of the protection plate will move toward the direction close to the card connector. By pressing the plug-in block, it will enter the sliding groove, and the elastic member will be compressed. When the card connector enters the connection frame, the plug-in block will be pushed out of the sliding groove and into the clearance hole under the push of the elastic member, and the protective cover can be fixed by the plug-in block and the clearance hole. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the protective cover of the utility model;
[0017] Figure 3 For this utility model Figure 2 Schematic diagram of the structure at A in the middle;
[0018] Figure 4 This is a connection diagram between the protective cover and the relay body of the utility model;
[0019] Figure 5 This is a partial view of the relay body of the utility model;
[0020] Figure 6 For this utility model Figure 5 Schematic diagram of the structure at B in the middle;
[0021] Figure 7 This is a schematic diagram of the three-dimensional structure of the sealing member of the utility model;
[0022] Figure 8 This is a cross-sectional view of the clamping member of the utility model.
[0023] In the figure: 1. relay body; 11. card connector; 111. plug-in block; 112. elastic member; 12. storage slot; 13. pin; 2. protective cover; 21. protective plate; 22. connecting frame; 23. clearance hole; 24. sealing member; 241. mounting seat; 242. side rotating plate; 243. sliding hole; 244. torsion spring. DETAILED DESCRIPTION
[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0025] like Figure 1 - Figure 8 As shown, a control relay with an interface protection mechanism of the utility model includes a relay body 1, a pin 13 is arranged on one side of the relay body 1, a protective cover 2 for protecting the pin 13 is arranged on the side of the relay body 1 close to the pin 13, the protective cover 2 is arranged in a wavy shape, and a storage groove 12 is opened on the side wall of the relay body 1 close to the pin 13, and the protective cover 2 is pushed so that the protective cover 2 enters the storage groove 12 and the pin 13 leaks out.
[0026] Before use, the pin 13 of the relay is always in the protective cover 2 to prevent the pin 13 from being exposed to the air, being attached with dirt, or being placed in a humid environment to rust, thereby ensuring that the pin 13 of the relay can be kept intact when not in use. The protective cover 2 is retractable. When the relay needs to be installed and used, the protective cover 2 is pushed so that the protective cover 2 enters the storage groove 12 for storage, and the pin 13 exposes the connecting part and can be plugged in for use.
[0027] After the relay is used, the protective cover 2 can still protect the pin 13, and the protective cover 2 can be used reciprocatingly.
[0028] Specifically, a seal 24 is fixedly connected to the outer side of the protective cover 2 away from the relay body 1. The seal 24 includes a mounting seat 241. A sliding hole 243 is provided in the middle of the mounting seat 241, and the sliding hole 243 communicates with the protective cover 2.
[0029] Through the setting of the seal 24, when the relay is not in use, the seal 24 cooperates with the protective cover 2 to keep the pin 13 in a sealed environment, preventing water and dirt from entering, so that there is no dirt attached to the outer wall of the pin 13.
[0030] Specifically, a side rotating plate 242 is rotatably arranged on the inner wall of the mounting seat 241, and torsion springs 244 are arranged on both sides of the side rotating plate 242.
[0031] When the relay needs to be used, the protective cover 2 is pushed. At this time, the pin 13 will push the two side rotating plates 242 to rotate outward. During the rotation of the side rotating plates 242, they will contact the side walls on both sides of the pin 13, which can clean the outer wall of the pin 13 to ensure that the pin 13 can contact the connecting piece well. The torsion springs 244 can make the side rotating plates 242 press tightly against the side walls of the pin 13.
[0032] Specifically, the side rotating plate 242 is made of rubber, and the two side rotating plates 242 can seal the sliding hole 243.
[0033] The side rotating plate 242 made of rubber can play a cleaning role when sliding with the side walls on both sides of the pin 13. At the same time, in the initial state, the two side rotating plates 242 can seal the sliding hole 243 under the action of the torsion springs 244.
[0034] Specifically, a clamping member 11 is fixedly connected to the side of the relay body 1 close to the protective cover 2. A sliding groove is provided on one side of the clamping member 11. A plug-in block 111 is slidably arranged in the sliding groove. An elastic member 112 is arranged in the sliding groove. One end of the elastic member 112 is fixedly connected to the inner wall of the sliding groove, and the elastic member 112 is fixedly connected to the inner wall of the plug-in block 111;
[0035] A protection plate 21 is connected to the end of the protective cover 2 away from the relay body 1. A connecting frame 22 is fixedly connected to the side of the protection plate 21 close to the clamping member 11. A relief hole 23 is provided on one side of the connecting frame 22, and the relief hole 23 is adapted to the plug-in block 111.
[0036] When the protective cover 2 is pushed to move into the storage groove 12, the protective plate 21 will move synchronously, and the connection frame 22 set at the bottom of the protective plate 21 will move toward the direction close to the card connector 11. By pressing the plug-in block 111, it will enter the sliding groove, and the elastic member 112 will be compressed. When the card connector 11 enters the connection frame 22, the plug-in block 111 will be pushed out of the sliding groove and into the clearance hole 23 under the push of the elastic member 112. The plug-in block 111 cooperates with the clearance hole 23 to achieve the fixing of the protective cover 2. The method of fixing the protective cover 2 is convenient and quick. When the pin 13 needs to be protected, it is necessary to pull the protective plate 21 in the direction to completely wrap the pin 13. The ends of the plug-in block 111 are all provided with chamfers, which is convenient for the plug-in block 111 to enter the connection frame 22 and also convenient for the plug-in block 111 to be pulled out of the connection frame 22.
[0037] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.
Claims
1. A control relay with an interface protection mechanism, comprising a relay body (1), characterized in that: A pin (13) is arranged on one side of the relay body (1); a protective cover (2) for protecting the plurality of pins (13) is arranged on the side of the relay body (1) close to the pin (13); the protective cover (2) is arranged in a wave shape; a storage groove (12) is provided on the side wall of the relay body (1) close to the pin (13); the protective cover (2) is pushed so that the protective cover (2) enters the storage groove (12) and the pin (13) leaks out.
2. A control relay with an interface protection mechanism according to claim 1, characterized in that: A sealing member (24) is fixedly connected to the outside of the protective cover (2) on a side away from the relay body (1); the sealing member (24) comprises a mounting seat (241); a sliding hole (243) is provided in the middle of the mounting seat (241); the sliding hole (243) and the protective cover (2) are connected to each other.
3. A control relay with an interface protection mechanism according to claim 2, characterized in that: A side rotating plate (242) is rotatably arranged on the inner wall of the mounting seat (241), and torsion springs (244) are arranged on both sides of the side rotating plate (242).
4. A control relay with an interface protection mechanism according to claim 3, characterized in that: The side rotating plates (242) are made of rubber material, and the two side rotating plates (242) can seal the sliding hole (243).
5. The control relay with an interface protection mechanism according to claim 1, characterized in that: A clamping piece (11) is fixedly connected to one side of the relay body (1) close to the protective cover (2); a sliding groove is provided on one side of the clamping piece (11); a plug-in block (111) is slidably provided in the sliding groove; an elastic piece (112) is provided in the sliding groove; one end of the elastic piece (112) is fixedly connected to the inner wall of the sliding groove; and the elastic piece (112) is fixedly connected to the inner wall of the plug-in block (111).
6. A control relay with an interface protection mechanism according to claim 5, characterized in that: A protective plate (21) is connected to one end of the protective cover (2) away from the relay body (1); a connecting frame (22) is fixedly connected to the side of the protective plate (21) close to the clamping member (11); a clearance hole (23) is provided on one side of the connecting frame (22); and the clearance hole (23) is adapted to fit the plug-in block (111).