Contactor type relay base with built-in power management device

Abstract

The utility model discloses a contactor type relay base with a built-in power management device in the technical field of electrical engineering, which comprises a base, a partition plate and a cover plate assembly, the partition plate is vertically and slidably connected in the base, the base is divided into a left cavity and a right cavity by the partition plate, the power management device is placed in the left cavity, and a relay electromagnetic system is arranged in the right cavity; the cover plate assembly is located above the left cavity. The cover plate assembly comprises a cover plate and a terminal strip. According to the scheme, the base only needs to be connected into the wire inlet end and the wire outlet end of the coil during circuit wiring, other contacts do not need to be connected in parallel or in series, devices such as a surge-resistant suppressor do not need to be externally hung, and installation and storage are easy.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical engineering, and particularly relates to a contactor relay base with a built-in power management device. Background Technique

[0002] A relay is a circuit control device. Its main action is completed by an electromagnet. When powered on, the electromagnet attracts, and when powered off, the electromagnet releases. As an "automatic switch" for controlling large current operation with small current in electrical engineering, it is widely used in control circuits in the fields of electric power, communication, automation, etc. It is not only the foundation of electrical engineering but also an important foundation for electronic technology and microelectronics technology.

[0003] Traditional contactors and relays mainly consist of an electromagnetic system and a contact system. The coil of the electromagnetic system is directly connected to the external circuit. When the external voltage exceeds ±20% of its rated voltage or there is a surge voltage, it is prone to poor contact or even burnout, resulting in automatic start and stop of machinery and equipment, self-reset of the control system, loss of process data, and even equipment burnout. Affected by factors such as lightning, large-probability equipment start and stop or faults, it is inevitable that the power supply system will have a surge phenomenon exceeding the peak value of the stable value instantaneously, which restricts the high-quality development of automated control equipment and the intelligent manufacturing industry.

[0004] Most of the currently newly researched surge-resistant relays and contactors adopt an external suppressor design or the PCB component is relatively fixed to the base through potting. When in use, other contacts need to be connected in parallel or in series while connecting the coil inlet and outlet ends, which is time-consuming and laborious and is not conducive to the maintenance and replacement of the PCB component.

[0005] In the future, with the development of intelligent integrated control technology and the improvement of the requirements for precise control, the trend of the relay towards high anti-interference, high adaptability, high reliability, and multi-functional integration is irreversible.

[0006] Therefore, we propose a contactor relay base with a built-in power management device to solve the above-mentioned problems. Content of the Utility Model

[0007] The utility model aims to provide a contactor relay base with a built-in power management device to solve the problem that when the existing technology is in use, other contacts need to be connected in parallel or in series while connecting the coil inlet and outlet ends, which is time-consuming and laborious.

[0008] A contactor relay base with a built-in power management device in this solution includes a base, a partition, and a cover plate assembly. The partition is vertically and slidably connected in the base. The partition divides the base into a left cavity and a right cavity. A power management device is placed in the left cavity, and a relay electromagnetic system is provided in the right cavity. The cover plate assembly is located above the left cavity, and the cover plate assembly includes a cover plate and a terminal block.

[0009] Working principle and beneficial effects of this solution: In this solution, the power management device is installed in the left cavity, directly connecting the power supply device to the relay coil in the relay electromagnetic system of the right cavity inside. When wiring the circuit, only the incoming and outgoing ends of the coil need to be connected, without the need to connect or series-connect other contacts, and without the need to externally connect devices such as surge suppressors, which is easy to install and store. By installing the power management device in the left cavity of the base, with heat dissipation holes and a cover for protection, and at the same time the power management device is detachably installed and fixed through a card slot and a cover, it is easy to repair and replace.

[0010] Furthermore, a seat cover is buckled on the base. The base includes a bottom plate and four vertical plates surrounding the bottom plate. Lock holes are provided on two opposite vertical plates arranged front and back, and a lock catch is provided on the seat cover. The lock catch and the lock hole are used in cooperation. During use, it is convenient to fix the seat cover to the lock hole.

[0011] Furthermore, mounting holes are provided on the bottom plate, and reinforcing ribs are provided on all four vertical plates. The provision of the mounting holes on the bottom plate facilitates the installation of the base, and the provision of the reinforcing ribs can enhance the strength and stiffness of the base.

[0012] Furthermore, a plurality of heat dissipation holes are provided on one side of the left cavity away from the partition. During installation, the components on the PCB board in the power management device face the heat dissipation holes, so that it can be used for heat dissipation when the power management device is working.

[0013] Furthermore, a set of card slots are provided on the inner wall of the left cavity. The card slots are used to clamp the PCB board in the power management device.

[0014] Furthermore, grooves are provided on the inner sides of the front and back vertical plates of the base. The partition is slidably connected in the grooves, and a chamfered hole is provided at the bottom of the partition. The partition is limited by the grooves for easy clamping, and the provision of the chamfered hole facilitates the introduction of the incoming and outgoing wires of the relay electromagnetic coil in the right cavity into the left cavity.

[0015] Furthermore, a card hole is provided in the left cavity, and a cover plate is provided in the card hole. The two ends of the cover plate are bent into bent ends, and cover plate mounting holes are provided at both bent ends of the cover plate. The cover plate mounting holes are connected in cooperation with the card hole, and a terminal row mating hole is provided in the middle of the cover plate. The cover plate mounting holes are used for positioning in cooperation with the card hole, and the terminal row mating hole is used for connecting the cover plate to the terminal row.

[0016] Furthermore, the card hole is an oval hole. This can adjust the position of the cover plate up and down to limit the up and down movement of the PCB. Such a setting can also be used to connect the relevant leads of the power management device to the terminal block, and at the same time, the number of terminal blocks can be increased according to the connection needs.

[0017] Further, the terminal block includes a coil incoming line terminal, a coil outgoing line terminal, a DC power supply V+, and a DC power supply V-. The coil incoming line terminal is connected to the input pin of the power management device in the left cavity. After voltage regulation by the power management device, it is connected to the incoming line terminal of the relay coil in the electromagnetic system of the right cavity through the output pin of the power management device; the DC power supply V+ is electrically connected to the output pin of the power management device, and this DC power supply V+ is used to provide the positive pole of the DC power supply for external electrical appliances; the DC power supply V- is electrically connected to the common ground of the power management device and is used to provide the negative pole of the DC power supply for external electrical appliances.

[0018] Further, the power management device includes an adaptive input wide-voltage circuit module and a surge-resistant circuit module. Such a setting can perform stable voltage regulation processing on a certain range of external wide voltage and surge voltage. Brief Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of a contactor-type relay base with a built-in power management device according to the present invention;

[0020] Figure 2 is Figure 1 the top view of

[0021] Figure 3 is Figure 1 the schematic side view structure diagram of the cover plate assembly omitted;

[0022] Figure 4 is the schematic structural diagram of the cover plate. Detailed Description of the Embodiment

[0023] The following is a further detailed description through specific embodiments:

[0024] The reference numerals in the accompanying drawings of the specification include: base 10, vertical plate 11, reinforcing rib 12, right cavity 13, left cavity 14, heat dissipation hole 15, bottom plate 16, card hole 17, lock hole 18, concave platform 111, bottom plate mounting hole 112, card slot 113, groove 114, partition 20, cover plate assembly 30, terminal block mounting hole 31, coil incoming line terminal 32, coil outgoing line terminal 33, DC power supply V+ 34, DC power supply V- 35, bent end 36, cover plate 37, terminal block mating hole 38, cover plate mounting hole 39.

[0025] The embodiment is basically as shown in Figure 1 , Figure 2 , Figure 3 and Figure 4As shown in the figure: A contactor relay base with a built-in power management device, which includes a base 10, a base cover (not shown), a partition 20, and a cover plate assembly 30. There is a concave platform 111 inside the base 10. The base 10 includes a bottom plate 16 and four vertical plates 11 surrounding the bottom plate 16. There are bottom plate mounting holes 112 on the bottom plate 16. Reinforcing ribs 12 are provided on the inner sides of the four vertical plates 11. Lock holes 18 are provided on two opposite vertical plates 11 arranged front and back. There is a lock catch on the base cover, and the lock catch is used in cooperation with the lock hole 18. The partition 20 is vertically slidably connected inside the base 10. A set of card slots 113 and a set of grooves 114 are provided on the inner sides of the front and back vertical plates 11. The partition 20 is slidably connected in the groove 114. The bottom of the partition 20 is provided with a chamfered hole. The partition 20 divides the base 10 into a left cavity 14 and a right cavity 13. Multiple heat dissipation holes 15 are provided on one side of the left cavity 14 away from the partition 20. The card slot 113 is located in the left cavity 14. A power management device is placed in the left cavity 14. A relay electromagnetic system is provided in the right cavity 13. The concave platform 111 is located in the right cavity 13; a kidney-shaped card hole 17 is provided in the left cavity 14. A cover plate 37 is provided in the card hole 17. The two ends of the cover plate 37 are bent into bent ends 36. Cover plate mounting holes 39 are provided at both bent ends 36 of the cover plate 37. The cover plate mounting holes 39 are connected in cooperation with the card hole 17. A terminal block mating hole 38 is provided in the middle of the cover plate 37;

[0026] The cover plate assembly 30 is located above the left cavity 14. The cover plate assembly 30 includes a cover plate 37 and a terminal block. The terminal block includes terminal block mounting holes 31, a coil incoming line end 32, a coil outgoing line end 33, a DC power supply V+34, and a DC power supply V-35;

[0027] The power management device includes an adaptive input wide voltage circuit module and a surge-resistant circuit module.

[0028] During application, the positive pole of the external DC power supply V+34 is connected to the coil incoming line end 32 on the cover plate assembly 30. A wire is used to pass through the terminal block mating hole 38 on the cover plate 37 to electrically connect the coil incoming line end 32 to the power input end of the power management device. After the voltage is regulated and stabilized by the adaptive input wide voltage circuit module and the surge-resistant circuit module in the power management device, it is output from the power output pin of the power management device. A wire is used to pass through the chamfered hole below the partition 20 and access the incoming line end of the relay coil in the electromagnetic system in the right cavity 13. A wire is used to connect the outgoing line end of the relay coil in the electromagnetic system in the right cavity 13 through the chamfered hole below the partition 20 and the terminal block mating hole 38 to the coil outgoing line end 33 on the cover plate assembly 30. In this way, by connecting the power management device in series with the relay coil, voltage stabilization adjustment and surge suppression processing are achieved.

[0029] Pass the wire through the terminal block mating hole 38 to electrically connect the output pin of the power management device in the left cavity 14 and the common ground to the DC power supply V+34 and the DC power supply V-35 on the cover plate assembly 30 respectively, and provide a stable DC power supply V+34 externally.

[0030] In this solution, by installing the power management device into the left cavity 14, the connection between the power supply device and the relay coil in the relay electromagnetic system of the right cavity 13 is directly realized inside. When wiring the circuit, only the coil inlet end 32 and the outlet end need to be connected, without the need to connect or series-connect other contacts externally, and without the need to externally install devices such as surge suppressors, which is easy to install and store. By installing the power management device into the left cavity 14 of the base 10, with heat dissipation holes 15 and the cover plate 37 for protection, and at the same time, the power management device is detachably installed and fixed through the card slot 113 and the cover plate 37, which is easy to overhaul and replace.

[0031] The above are only the embodiments of the present invention, and common knowledge such as specific structures and characteristics known in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.

Claims

1. A contactor type relay base with a built-in power management device, characterized in that: It includes a base, a partition and a cover assembly, wherein the partition is vertically slidably connected in the base, and the partition divides the base into a left cavity and a right cavity, wherein a power management device is placed in the left cavity, and a relay electromagnetic system is arranged in the right cavity; The cover plate assembly is located above the left cavity, and the cover plate assembly comprises a cover plate and a terminal row.

2. A contactor type relay base with a built-in power management device according to claim 1, characterized in that: The base is buckled with a seat cover, which includes a bottom plate and four vertical plates arranged around the bottom plate. Two vertical plates opposite to each other arranged at the front and the back are both provided with lock holes, and the seat cover is provided with a lock buckle, which is used in conjunction with the lock hole.

3. A contactor type relay base with a built-in power management device according to claim 2, characterized in that: The bottom plate is provided with a bottom plate mounting hole, and the four vertical plates are all provided with reinforcing ribs.

4. A contactor type relay base with a built-in power management device according to claim 3, characterized in that: A plurality of heat dissipation holes are arranged on a side of the left cavity away from the partition.

5. A contactor type relay base with a built-in power management device according to claim 4, characterized in that: The inner wall of the left cavity is provided with a group of slots.

6. A contactor type relay base with a built-in power management device according to claim 5, characterized in that: Grooves are arranged on the inner sides of the front and rear vertical plates of the base, the partition is slidably connected in the grooves, and chamfered holes are arranged on the bottom of the partition.

7. A contactor type relay base with a built-in power management device according to claim 6, characterized in that: The left cavity is provided with a card hole, a cover plate is provided in the card hole, two ends of the cover plate are bent, the two bent ends of the cover plate are provided with cover plate mounting holes, the cover plate mounting holes are matched and connected with the card hole, and a terminal row matching hole is provided in the middle of the cover plate.

8. The contactor type relay base with a built-in power management device according to claim 7, characterized in that: The clamping hole is a waist-shaped hole.

9. A contactor type relay base with a built-in power management device according to claim 8, characterized in that: The terminal block includes a coil inlet terminal, a coil outlet terminal, a DC power source V+ and a DC power source V-.

10. A contactor type relay base with a built-in power management device according to claim 9, characterized in that: The power management device comprises an adaptive input wide voltage circuit module and a surge protection circuit module.

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