18mm power-off time-delay combined relay
By designing a 18mm standard size power-off delay combined relay, adopting delay circuits of microprocessors and digital circuits, and combining electronic switch control circuits, the existing technology relays have large size, inconvenient installation and low delay accuracy. The problem of this problem realizes high-precision, safe and reliable delay control, and provides a convenient and efficient user experience.
Patent Information
- Application Number
- CN202421172545.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-05-28
AI Technical Summary
The existing power-off delay relays are large in size, inconvenient to install, and low delay accuracy, making it difficult to meet the growing market demand.
Design a 18mm standard size power-off delay combined relay, adopts a delay circuit of a microprocessor and a digital circuit, and combines an electronic switch control circuit to achieve high-precision and high-stability delay control, and through the display panel and The indicator light provides a user-friendly operating interface.
It realizes a relay that is conveniently installed in a limited space environment, improves delay accuracy and control accuracy, enhances the safety and reliability of the relay, and provides a convenient and efficient user experience.
Smart Images
Figure CN222507465U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of relays, in particular to an 18mm power-off delay combination relay. Background Art
[0002] In electrical control systems, relays are commonly used control elements for realizing the switching and logic control of circuits. With the development of industrial automation, the functional requirements for relays are becoming more and more diverse. Among them, a power-off delay relay is a special relay that can maintain a delayed disconnection for a period of time after power failure to meet certain specific control requirements. Now, regarding the power-off delay relay, a Chinese patent with publication number: CN201066766 discloses an electromagnetic relay, which includes a relay housing, a load control relay and a lock control relay are arranged inside the relay housing, the load control relay is provided with an armature I, and a circuit board and a contact state feedback switch are also arranged at the bottom of the relay housing, one end of the armature I is connected to the contact state feedback switch, the circuit board is connected to the contact state feedback switch, and the circuit board is provided with a plug interface on the housing, and the plug interface includes a terminal II and a terminal III. When the contacts are opened or closed, an electrical signal is generated, which can be transmitted to the control system through wires to determine whether the relay is working properly, thus realizing the feedback function. The integrated circuit layout connects the signal line of the relay with a unified plug interface, which is convenient and fast, with a firm connection, and can prevent oxidation at the interface due to electrothermal reaction.
[0003] Although the above patent has the effect of delaying power off, the existing power off delay relays are usually large in size, inconvenient to install, and have low delay accuracy, making it difficult to meet the growing market demand. Utility Model Content
[0004] The purpose of the utility model is to provide an 18mm power-off delay combination relay, which adopts an 18mm standard size design, is easy to install and integrate, and is suitable for installation scenarios in various limited spaces. At the same time, the high-precision and high-stability delay circuit ensures accurate control of the relay, and the rapid response and overcurrent protection function of the control circuit improve the safety and reliability of the relay, which can solve the problems in the prior art.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A 18mm power-off delay combination relay comprises a relay housing, the upper end of the relay housing is movably connected to a protective upper cover through a pin shaft, a mounting guide groove is arranged on the lower surface of the relay housing, the relay housing is clamped with a guide rail through the mounting guide groove, a display panel is installed on the upper surface of the relay housing, and an adjustment knob and an indicator light are arranged on the surface of the display panel.
[0007] Preferably, a fixing tongue is provided on one side of the display panel, a fixing slot engaged with the fixing tongue is provided on one side of the protective cover, and the protective cover is configured as a transparent protective cover.
[0008] Preferably, wiring ports are symmetrically installed on both sides of the relay housing, and the lower ends of the wiring ports are electrically connected to the delay circuit and the control circuit in the relay housing through wiring posts.
[0009] Preferably, the connection port is electrically connected to an external circuit.
[0010] Preferably, the lower end of the relay housing is symmetrically provided with mounting locks, and the lower surface of the relay housing is provided with guide grooves for the mounting locks to slide.
[0011] Preferably, the relay housing has a width of 18 mm, a length of 90 mm, and a height of 73 mm.
[0012] Preferably, the indicator light includes an LED power indicator and an output indicator.
[0013] Preferably, a wiring diagram area and a device information area are provided on one side of the relay housing.
[0014] Preferably, the delay circuit uses a microprocessor and a digital circuit, wherein the microprocessor is used to program and control the delay circuit, and the control circuit uses an electronic switch.
[0015] Preferably, the adjustment knob includes delay range adjustment and function mode adjustment, wherein the delay range is 0.1s-600s.
[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0017] The 18mm standard size design allows for easy installation in environments with limited space. The wiring diagram area and device information area provide users with clear wiring guidance and device information, allowing users to quickly get started and use the relay correctly, improve the efficiency of equipment use, reduce operating errors, and bring users a convenient and efficient use experience. At the same time, the high-precision and high-stability delay circuit ensures accurate control of the relay, and the fast response and over-current protection function of the control circuit improve the safety and reliability of the relay. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the installation of the 18mm power-off delay combination relay of the utility model;
[0019] Figure 2 This is the isometric view of the 18mm power-off delay combination relay of the utility model;
[0020] Figure 3This is a top view of the 18mm power-off delay combination relay of the utility model;
[0021] Figure 4 This is a front view of the 18mm power-off delay combination relay of the utility model.
[0022] In the figure: 1. Relay housing; 11. Installation guide groove; 12. Display panel; 13. Adjustment knob; 14. Indicator light; 15. Fixing tongue; 16. Fixing slot; 17. Wiring port; 18. Terminal; 19. Installation lock; 2. Protective cover; 3. Guide rail. DETAILED DESCRIPTION
[0023] 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.
[0024] In order to solve the problem that the existing power-off delay relays are usually large in size, inconvenient to install, and have low delay accuracy, it is difficult to meet the growing market demand. Figure 1-4 , this embodiment provides the following technical solutions:
[0025] A 18mm power-off delay combination relay comprises a relay housing 1, the upper end of the relay housing 1 is movably connected to a protective upper cover 2 through a pin shaft, a mounting guide groove 11 is arranged on the lower surface of the relay housing 1, the relay housing 1 is clamped with a guide rail 3 through the mounting guide groove 11, a mounting lock 19 is symmetrically arranged on the lower end of the relay housing 1, a guide groove for the mounting lock 19 to slide is arranged on the lower surface of the relay housing 1, a fixed tongue 15 is arranged on one side of a display panel 12, a fixed groove 16 clamped with the fixed tongue 15 is arranged on one side of the protective upper cover 2, and the protective upper cover 2 is arranged as a transparent protective cover.
[0026] In this embodiment, the installation lock 19 arranged at the lower end of the relay housing 1 can conveniently fix it on the guide rail 3. The snap-fit design of the installation guide groove 11 and the guide rail 3 makes the installation process simple and quick, while ensuring the stability of the relay installation. The display panel 12 is protected by the protective upper cover 2 to avoid accidental touching of the relay during use. It is set as a transparent protective cover to facilitate observation and maintenance by the staff.
[0027] In this embodiment, wiring ports 17 are symmetrically installed on both sides of the relay housing 1, and the wiring ports 17 are electrically connected to the external circuit. The lower end of the wiring port 17 is electrically connected to the delay circuit and the control circuit in the relay housing 1 through the terminal 18. The delay circuit adopts a microprocessor and a digital circuit, wherein the microprocessor is used to program and control the delay circuit to realize the delayed disconnection function after power failure, with high precision and high stability. The control circuit adopts an electronic switch with fast response and overcurrent protection functions.
[0028] In this embodiment, when the external circuit provides an excitation signal, the signal enters the interior of the relay housing 1 through the wiring port 17, and the terminal 18 is responsible for extending the connection between the wiring port 17 and the external circuit to the delay circuit and the control circuit inside the relay. The delay circuit has extremely high precision and stability, and can accurately control the delayed disconnection time of the relay to meet the needs of different application scenarios. When the external control signal is received, the microprocessor starts timing, and after the set delay time ends, it sends an instruction to the control circuit through the digital circuit to control the contact action of the relay. The control circuit can act quickly after the microprocessor sends the instruction to ensure the timeliness and accuracy of the relay contact action, thereby controlling the on and off of the relay contacts. In addition, the control circuit also has an overcurrent protection function. When an overcurrent phenomenon occurs in the circuit, the circuit can be automatically cut off to protect the relay and related equipment from damage, effectively preventing the overcurrent phenomenon in the circuit from damaging the relay and related equipment, and improving the reliability and safety of the system.
[0029] In this embodiment, a display panel 12 is installed on the upper surface of the relay housing 1. An adjustment knob 13 and an indicator light 14 are provided on the surface of the display panel 12 for displaying the working status of the relay. The indicator light 14 includes an LED power indicator and an output indicator. The LED power indicator is used to indicate whether the relay is powered on, and the output indicator is used to indicate the on-off status of the contacts. The user can judge the working condition of the relay by observing the indicator light. A wiring diagram area and a device information area are provided on one side of the relay housing 1. The adjustment knob 13 includes a delay range adjustment and a function mode adjustment, wherein the delay range is 0.1s-600s. The relay housing 1 is 18mm wide, 90mm long, and 73mm high.
[0030] In this embodiment, through the adjustment knob 13 and the indicator light 14 on the display panel 12, the user can intuitively understand and control the working status of the relay, while preventing external foreign matter or moisture from entering the interior of the relay and causing damage or short circuit. The design of the adjustment knob 13 allows the user to easily adjust the delay time and function mode, and the indicator light 14 provides clear working status feedback. The size of the relay housing 1 makes it easy to install even in an environment with limited space. The wiring diagram area and the device information area provide users with clear wiring guidance and device information, so that users can quickly get started and use the relay correctly, improve the use efficiency of the equipment, reduce operating errors, and bring users a convenient and efficient use experience.
[0031] Working principle: When the external circuit provides an excitation signal, such as current or voltage, these signals enter the inside of the relay housing 1 through the wiring port 17, and the terminal 18 extends the connection between the wiring port 17 and the external circuit to the delay circuit and control circuit inside the relay. The microprocessor in the delay circuit is responsible for programming and controlling the function of the delay circuit. When the external control signal is received, the microprocessor starts timing, and after the set delay time ends, it sends an instruction to the control circuit through the digital circuit to control the contact action of the relay. The control circuit can act quickly after the microprocessor sends the instruction, achieving the effect of resetting after a delay, thereby realizing the power-off delay function.
[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0033] Although 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. An 18 mm power-off delay combination relay, comprising a relay housing (1), characterized in that: The upper end of the relay housing (1) is movably connected to the protective upper cover (2) via a pin shaft, a mounting guide groove (11) is provided on the lower surface of the relay housing (1), the relay housing (1) is clamped with the guide rail (3) via the mounting guide groove (11), a display panel (12) is installed on the upper surface of the relay housing (1), and an adjustment knob (13) and an indicator light (14) are provided on the surface of the display panel (12).
2. The 18mm power-off delay combination relay according to claim 1, characterized in that: A fixing tongue (15) is provided on one side of the display panel (12), a fixing slot (16) that is engaged with the fixing tongue (15) is provided on one side of the protective upper cover (2), and the protective upper cover (2) is configured as a transparent protective cover.
3. The 18mm power-off delay combination relay according to claim 2, characterized in that: Wiring ports (17) are symmetrically mounted on both sides of the relay housing (1), and the lower ends of the wiring ports (17) are electrically connected to the delay circuit and the control circuit in the relay housing (1) via wiring posts (18).
4. The 18mm power-off delay combination relay according to claim 3, characterized in that: The connection port (17) is electrically connected to an external circuit.
5. The 18mm power-off delay combination relay according to claim 4, characterized in that: The lower end of the relay housing (1) is symmetrically provided with a mounting lock buckle (19), and the lower surface of the relay housing (1) is provided with a guide groove for the mounting lock buckle (19) to slide.
6. The 18mm power-off delay combination relay according to claim 5, characterized in that: The relay housing (1) has a width of 18 mm, a length of 90 mm and a height of 73 mm.
7. The 18mm power-off delay combination relay according to claim 6, characterized in that: The indicator light (14) comprises an LED power indicator and an output indicator.
8. The 18mm power-off delay combination relay according to claim 7, characterized in that: A wiring diagram area and a device information area are provided on one side of the relay housing (1).
9. The 18mm power-off delay combination relay according to claim 8, characterized in that: The delay circuit adopts a microprocessor and a digital circuit, wherein the microprocessor is used for programming and controlling the delay circuit, and the control circuit adopts an electronic switch.
10. The 18mm power-off delay combination relay according to claim 9, characterized in that: The adjustment knob (13) includes delay range adjustment and function mode adjustment, wherein the delay range is 0.1s-600s.