Electromagnet over-temperature protection device

Abstract

The utility model relates to the technical field of electromagnets, and discloses an electromagnet over-temperature protection device which comprises an electromagnet, an intelligent thermometer is installed on the top of the electromagnet, a temperature sensor is installed in the intelligent thermometer, and the top side of the intelligent thermometer is fixedly connected with an installation base. A mounting assembly is arranged in the mounting base and comprises a clamping groove, a spring, a clamping block, a limiting groove, a limiting block and a switch plate. According to the electromagnet over-temperature protection device, the mounting assembly is arranged, a temperature sensor can be mounted and dismounted in a clamping mode, personnel can conveniently maintain and replace the temperature sensor in the later period, and during dismounting, only two switch plates need to be pushed at the same time to be matched with a clamping block, a spring, a limiting groove and a limiting block, so that the clamping block can be separated from the clamping groove; the clamping relation between the temperature sensor and the intelligent thermometer is cut off, the intelligent thermometer is dismounted and replaced, and the mounting and dismounting work can be completed without using a professional tool.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnets, in particular to an electromagnet over-temperature protection device. Background Art

[0002] An electromagnet is a device that generates electromagnetism when powered on. A conductive winding that matches its power is wound around the outside of the iron core. The electromagnet is magnetic when powered on, and the magnetism disappears when the power is off. When the electromagnet is powered on, the coil itself will generate high heat. Once the temperature exceeds the maximum tolerance temperature of the coil, manual or automatic power-off protection is required.

[0003] According to the application number 202122863424.9, an electromagnet device is disclosed, which controls the power on and off of the electromagnet through a control module. When the temperature of the electromagnet coil exceeds the threshold, the power supply circuit is disconnected in time to stop the electromagnet from heating, thereby protecting the electromagnet and preventing the electromagnet from overheating and burning.

[0004] Problems that still exist in actual use:

[0005] (1) In the above device, the temperature sensing element is installed inside the electromagnet. Once the temperature sensing element is damaged, the electromagnet needs to be disassembled to take out the temperature sensing element for repair and replacement. Professional tools need to be used for disassembly, which is a cumbersome operation.

[0006] (2) The above device mainly uses a temperature switch to control the on and off of the signal source required by the power supply system. The temperature switch has the characteristic of on and off at a fixed temperature value, and it is impossible to freely set the power-off protection temperature or other complex actions. Utility Model Content

[0007] In view of the deficiencies in the prior art, the utility model provides an electromagnet over-temperature protection device, which has the advantages of being easy for personnel to disassemble the temperature sensor, convenient for later repair and replacement of the temperature sensor, and the ability to customize the temperature threshold, and the function of electromagnet over-temperature protection, thereby solving the problems raised in the background technology.

[0008] The utility model provides the following technical solution: an electromagnet over-temperature protection device, comprising an electromagnet, a smart temperature meter is installed on the top of the electromagnet, a temperature sensor is installed inside the smart temperature meter, a mounting seat is fixedly connected to the top side of the smart temperature meter, and a mounting assembly is arranged inside the mounting seat;

[0009] The mounting assembly includes a slot, a spring, a clamping block, a limit slot, a limit block and a switch plate. The number of the slots is two and they are respectively arranged inside the mounting seat. A spring is arranged inside the slot, and a clamping block is arranged at one end of the spring. Limit slots are arranged on both side inner walls of the slot, and limit blocks are arranged on both side surfaces of the clamping block. Switch plates are arranged on both side surfaces of the mounting seat.

[0010] Preferably, the slot is provided on the inner walls on both sides of the mounting seat, one end of the spring is fixedly connected to the inner wall on one side of the slot, the clamping block is fixedly connected to the other end of the spring, the limiting slot is provided on the inner walls on both sides of the slot, the limiting block is fixedly connected to the clamping block and is located inside the limiting slot, and one end of the switch plate is fixedly connected to the clamping block.

[0011] Preferably, a clamping plate is fixedly connected to the top of the temperature sensor, clamping grooves are provided on both side surfaces of the clamping plate, and a protrusion is fixedly connected to the top side of the clamping plate.

[0012] Preferably, one end of the electromagnet is connected to a power supply system.

[0013] Preferably, the intelligent temperature meter is connected to the electromagnet via a lead wire, and the intelligent temperature meter consists of a dual-output digital controller, two relays, and a buzzer.

[0014] Preferably, the temperature sensor is connected to a dual-output digital controller, and the output ends of the controller are respectively connected to two relays, one of which is connected in series with a buzzer circuit, and the other is connected in series with a power supply system control signal circuit.

[0015] Preferably, a display screen is installed on the top side of the smart temperature meter, and the display screen is electrically connected to the temperature sensor.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The electromagnet over-temperature protection device is provided with an installation component, and the temperature sensor can be installed and removed by means of a snap-on method, which is convenient for personnel to maintain and replace the temperature sensor in the later stage. When disassembling, it is only necessary to push the two switch plates at the same time, and cooperate with the snap-on block, spring, limit groove and limit block to make the snap-on block detach from the snap-on groove, disconnect the snap-on relationship between the temperature sensor and the intelligent temperature meter, and disassemble it for replacement. The installation and disassembly work can be completed without using professional tools.

[0018] 2. The electromagnet over-temperature protection device is equipped with an electromagnet power supply system, which can display the real-time temperature. According to the temperature value, by setting the digital controller parameters, the opening and closing of the two relays at the output end can be freely defined. One of the relays controls the switch of the buzzer to complete the function of alarming when the set temperature is reached; the other relay controls the switch of the signal source of the electromagnet power supply system, thereby completing the function of electromagnet over-temperature protection when the set temperature is reached. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the utility model device;

[0020] Figure 2 This is a schematic diagram of the structure of the temperature sensor of the utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the mounting base of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the intelligent temperature meter of the utility model

[0023] In the figure: 1. electromagnet; 2. power supply system; 3. intelligent temperature meter; 4. temperature sensor; 5. mounting seat; 6. mounting assembly; 601. slot; 602. spring; 603. snap-in block; 604. limit slot; 605. limit block; 606. switch board; 7. card board; 8. snap-in slot; 9. protrusion; 10. display screen. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figures 1 to 3, an electromagnet overtemperature protection device, comprising an electromagnet 1, an intelligent temperature meter 3 is installed on the top of the electromagnet 1, a temperature sensor 4 is installed inside the intelligent temperature meter 3, a mounting seat 5 is fixedly connected to the top side of the intelligent temperature meter 3, a mounting assembly 6 is arranged inside the mounting seat 5, the mounting assembly 6 includes a card slot 601, a spring 602, a card block 603, a limit slot 604, a limit block 605 and a switch plate 606, the number of the card slots 601 is two and they are respectively arranged inside the mounting seat 5, a spring 602 is arranged inside the card slot 601, a card block 603 is arranged at one end of the spring 602, both sides of the inner wall of the card slot 601 are provided with limit slots 604, both side surfaces of the card block 603 are provided with limit blocks 605, and both side surfaces of the mounting seat 5 are provided with switch plates 606;

[0026] By providing the installation component 6 , the temperature sensor 4 can be installed and removed by means of a snap-on connection, and the installation and removal work can be completed without using professional tools, which makes it convenient for personnel to perform maintenance and replacement of the temperature sensor 4 at a later time.

[0027] See also Figures 2 to 3 , the card slot 601 is provided on the inner walls on both sides of the mounting seat 5, one end of the spring 602 is fixedly connected to the inner wall on one side of the card slot 601, the card block 603 is fixedly connected to the other end of the spring 602, the limiting slot 604 is provided on the inner walls on both sides of the card slot 601, the limiting block 605 is fixedly connected to the card block 603 and is located inside the limiting slot 604, one end of the switch plate 606 is fixedly connected to the card block 603, the top of the temperature sensor 4 is fixedly connected with a card plate 7, both side surfaces of the card plate 7 are provided with card slots 8, and the top side of the card plate 7 is fixedly connected with a protrusion 9;

[0028] When removing the temperature sensor 4, it is only necessary to push the two switch plates 606 at the same time, and cooperate with the clamping block 603, spring 602, limit groove 604 and limit block 605 to make the clamping block 603 disengage from the clamping groove 8, disconnect the clamping relationship between the temperature sensor 4 and the smart temperature meter 3, and disassemble it for replacement.

[0029] See also Figure 1 and Figure 4 , one end of the electromagnet 1 is connected to the power supply system 2, the intelligent temperature meter 3 is connected to the electromagnet 1 through a lead, the intelligent temperature meter 3 is composed of a dual-channel output digital controller, two relays, and a buzzer, the temperature sensor 4 is connected to the dual-channel output digital controller, and the output ends of the controller are respectively connected to two relays, one of which is connected in series with the buzzer circuit, and the other relay is connected in series with the power supply system 2 control signal circuit, and a display screen 10 is installed on the top side of the intelligent temperature meter 3, and the display screen 10 is electrically connected to the temperature sensor 4;

[0030] The specific model of the temperature sensor 4 is PT100, which can not only realize the on-off action through the controller, but also display the temperature of the coil inside the electromagnet 1 in real time, collect the signal fed back by PT100 through the dual-channel output digital controller, and display the real-time temperature through the display screen 10. According to the temperature value, by setting the parameters of the digital controller, the function of over-temperature protection of the electromagnet 1 with the set temperature is achieved.

[0031] In the utility model, the working steps of the device are as follows:

[0032] The first step: the temperature of the coil inside the electromagnet 1 is detected by the temperature sensor 4, and the detection result is collected by the internal digital controller of the power supply system 2 and transmitted to the display screen 10 to display the real-time temperature. According to the temperature value, by setting the parameters of the digital controller, the opening and closing of the two relays at the output end can be freely defined, one of which controls the switch of the buzzer to complete the function of reaching the set temperature alarm; the other relay controls the switch of the signal source of the power supply system 2, thereby completing the function of over-temperature protection of the electromagnet 1 when the set temperature is reached;

[0033] Step 2: During later maintenance, when the temperature sensor 4 is damaged and needs to be disassembled and replaced, push the two switch plates 606 at the same time to drive the clamping block 603 to move, so that the clamping block 603 is retracted into the clamping slot 601 and disengaged from the clamping slot 8, disconnecting the clamping relationship between the temperature sensor 4 and the intelligent temperature meter 3, and then pull the protrusion 9 to pull out the temperature sensor 4, disassemble and repair the damaged temperature sensor 4, and insert the new temperature sensor 4 into the mounting seat 5, so that the clamping plate 7 squeezes the clamping block 603. Since one side surface of the clamping block 603 is arc-shaped, the spring 602 can be compressed and drive the clamping block 603 to retract into the clamping slot 601. Then, when the clamping slot 8 and the clamping block 603 are on the same horizontal line, the spring 602 resets and drives the clamping block 603 to enter the clamping slot 8 for clamping, completing the installation. The installation and disassembly work can be completed without using professional tools, and when the clamping block 603 moves, it can drive the limit block 605 to slide in the limit slot 604, making the sliding of the clamping block 603 more stable.

[0034] 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.

[0035] 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 electromagnet overtemperature protection device, comprising an electromagnet (1), characterized in that: An intelligent temperature meter (3) is installed on the top of the electromagnet (1), a temperature sensor (4) is installed inside the intelligent temperature meter (3), a mounting seat (5) is fixedly connected to the top side of the intelligent temperature meter (3), and a mounting assembly (6) is arranged inside the mounting seat (5); The mounting assembly (6) comprises a slot (601), a spring (602), a clamping block (603), a limiting slot (604), a limiting block (605) and a switch plate (606); two slots (601) are respectively arranged inside the mounting seat (5); a spring (602) is arranged inside the slot (601); a clamping block (603) is arranged at one end of the spring (602); limiting slots (604) are arranged on both inner walls of the slot (601); limiting blocks (605) are arranged on both side surfaces of the clamping block (603); and switch plates (606) are arranged on both side surfaces of the mounting seat (5).

2. The electromagnet over-temperature protection device according to claim 1, characterized in that: The slot (601) is provided on the inner walls on both sides of the mounting seat (5); one end of the spring (602) is fixedly connected to the inner wall on one side of the slot (601); the clamping block (603) is fixedly connected to the other end of the spring (602); the limiting slot (604) is provided on the inner walls on both sides of the slot (601); the limiting block (605) is fixedly connected to the clamping block (603) and is located inside the limiting slot (604); and one end of the switch plate (606) is fixedly connected to the clamping block (603).

3. The electromagnet over-temperature protection device according to claim 1, characterized in that: A clamping plate (7) is fixedly connected to the top of the temperature sensor (4), clamping grooves (8) are provided on both side surfaces of the clamping plate (7), and a protrusion (9) is fixedly connected to the top side of the clamping plate (7).

4. The electromagnet over-temperature protection device according to claim 1, characterized in that: One end of the electromagnet (1) is connected to a power supply system (2).

5. The electromagnet over-temperature protection device according to claim 1, characterized in that: The intelligent temperature meter (3) is connected to the electromagnet (1) via a lead wire, and the intelligent temperature meter (3) is composed of a dual-output digital controller, two relays, and a buzzer.

6. The electromagnet over-temperature protection device according to claim 1, characterized in that: The (4) temperature sensor is connected to a dual-output digital controller, and the output ends of the controller are respectively connected to two relays, one of which is connected in series with the buzzer circuit, and the other is connected in series with the power supply system (2) control signal circuit.

7. The electromagnet over-temperature protection device according to claim 1, characterized in that: A display screen (10) is installed on the top side of the intelligent temperature meter (3), and the display screen (10) is electrically connected to the temperature sensor (4).

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