CN212747321U

CN212747321U - Automatic protection device of medium-frequency electric furnace

Info

Publication number: CN212747321U
Application number: CN202021128689.3U
Authority: CN
Inventors: 高广友
Original assignee: Wuxi Guangyou Technology Co ltd
Current assignee: Wuxi Guangyou Technology Co ltd
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2021-03-19
Anticipated expiration: 2030-06-18

Abstract

The utility model discloses an automatic protection device of intermediate frequency electric stove, which comprises a circuit board, the fixed heat-conducting plate that is provided with of circuit board lower extreme, the heat-conducting plate lower extreme is the even fixed a plurality of conducting strips that are provided with, fixed block is provided with the cooling tube between the conducting strip, the fixed mounting panel that is provided with of conducting strip lower extreme, the circuit board upper end is provided with protection mechanism, protection mechanism is including protection casing, flexure strip, fixture block, fixed block, draw-in groove, the circuit board upper end is provided with the protection casing, the fixed flexure strip that is provided with in protection casing surface both sides all, the fixed fixture block that is provided with of flexure strip lower extreme, the fixed block that is provided. The utility model discloses excellent in use effect can be convenient for dispel the heat to the circuit board to can prevent effectively that the machine temperature is higher under high-power state, lead to the inside components and parts of circuit board to damage.

Description

Automatic protection device of medium-frequency electric furnace

Technical Field

The utility model relates to an intermediate frequency electric stove technical field specifically is an intermediate frequency electric stove automatic safety device.

Background

The medium frequency electric furnace is a device for converting electric energy into heat, and is widely applied to various aspects of production and life.

And when the electric furnace works in a high-power state, the electric furnace is cooled. Such as power element main rectifier, IGBT or MOSFET, high frequency transformer and induction coil. Due to the heat effect of current, the elements and parts work under the condition of large current and inevitably generate certain heat, thereby causing additional temperature rise. If cooling is not performed in a timely manner, it can not only affect the performance and power of the machine, but also burn component parts and damage the machine. The current medium frequency electric furnace circuit board lacks a cooling structure.

Meanwhile, the service environment of the medium-frequency electric furnace is generally severe, and the circuit board is polluted by oil stains, metal dust, high-temperature molten iron splashing and the like in the using process and is attached to an integrated circuit board of the medium-frequency electric furnace, so that the problem that a driving module is short-circuited or poor in contact and the like is caused, the whole medium-frequency electric furnace is failed frequently, and the medium-frequency electric furnace is damaged and cannot be used. The prior art is that three-proofing paint is brushed or sprayed on the surface of a circuit board to prevent invasion of other sundries, and the protection effect is poor

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic protection device of intermediate frequency electric stove to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an intermediate frequency electric stove automatic safety device, includes the circuit board, the fixed heat-conducting plate that is provided with of circuit board lower extreme, the heat-conducting plate lower extreme is even fixed and is provided with a plurality of conducting strips, fixed block is provided with the cooling tube between the conducting strip, the fixed mounting panel that is provided with of conducting strip lower extreme, the circuit board upper end is provided with protection mechanism, protection mechanism is including protection casing, flexure strip, fixture block, fixed block, draw-in groove, the circuit board upper end is provided with protection casing, the fixed flexure strip that is provided with in protection casing surface both sides all, the fixed fixture block that is provided with of flexure strip lower extreme, the fixed block that is provided with in circuit board surface both sides all.

Preferably, the mounting holes are formed in four corners of the outer side surface of the upper end of the mounting plate, and the device can be conveniently and fixedly mounted at a target position through the mounting holes.

Preferably, one end of the cooling pipe is fixedly provided with a connecting flange, and the cooling pipe can be conveniently connected with cooling liquid and a pump body through the connecting flange.

Preferably, logical groove has all been seted up to protective housing surface both sides, it is provided with the motor through the mount pad is fixed to lead to the inboard middle part of groove, the output shaft end of motor passes through the fixed blade that is provided with of shaft coupling, drives the blade through the motor and rotates to can further improve device's radiating effect.

Preferably, the surface outside the through groove is fixedly provided with a protective net, the blades can be prevented from contacting with foreign matters when rotating through the protective net, and meanwhile, sundries can be prevented from entering the protective shell through the protective net.

Preferably, the middle part of the outer side surface of the protective shell is provided with a wire arranging hole, and the circuit board can be conveniently connected with a cable externally through the wire arranging hole.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses intermediate frequency electric stove carries out the during operation under high-power state, can go into the coolant liquid to the inside pump of cooling tube through the pump body, and the coolant liquid circulates at the cooling tube inside afterwards to contact with conducting strip and leading-in board, so can derive the heat in the circuit board and take away, thereby can play radiating effect.

2. The utility model discloses can protect the circuit board through the protection casing when using to can prevent effectively that the circuit board from receiving pollution such as greasy dirt, metal dust, high temperature molten iron splash, open the protection casing when needing to inspect the maintenance to the circuit board, can press down the flexure strip through the finger, thereby make the flexure strip so can drive the fixture block and extract from the draw-in groove, thereby make the fixture block no longer fixed with the draw-in groove, can take off the protection casing this moment, so can conveniently inspect the maintenance to the circuit board.

Drawings

FIG. 1 is a schematic view of the overall structure of an automatic protection device for an intermediate frequency furnace according to the present invention;

FIG. 2 is a bottom view of the cooling tube and the heat conducting fin of the automatic protector for medium frequency electric furnaces of the present invention;

fig. 3 is an enlarged view of a position a in fig. 1 of the automatic protection device for an intermediate frequency furnace of the present invention.

In the figure: 1. a circuit board; 2. a heat conducting plate; 3. a heat conductive sheet; 4. a cooling tube; 5. mounting a plate; 6. a protective housing; 7. an elastic sheet; 8. a clamping block; 9. a fixed block; 10. a card slot; 11. mounting holes; 12. a connecting flange; 13. a through groove; 14. an electric motor; 15. a blade; 16. and (4) arranging holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: an automatic protection device of an intermediate frequency electric furnace comprises a circuit board 1, a heat conducting plate 2 is fixedly arranged at the lower end of the circuit board 1, a plurality of heat conducting fins 3 are uniformly and fixedly arranged at the lower end of the heat conducting plate 2, cooling pipes 4 are fixedly clamped among the heat conducting fins 3, the lower end of the heat conducting fin 3 is fixedly provided with an installation plate 5, the upper end of the circuit board 1 is provided with a protection mechanism, the protection mechanism comprises a protection shell 6, an elastic sheet 7, a clamping block 8, a fixing block 9 and a clamping groove 10, the upper end of the circuit board 1 is provided with a protective shell 6, two sides of the surface of the protective shell 6 are both fixedly provided with elastic sheets 7, the lower end of the elastic sheet 7 is fixedly provided with a fixture block 8, both sides of the surface of the circuit board 1 are fixedly provided with a fixture block 9, a clamping groove 10 is formed in the side wall of one side inside the fixing block 9, and the clamping block 8 is movably clamped inside the clamping groove 10.

The four corners of the outer side surface of the upper end of the mounting plate 5 are respectively provided with a mounting hole 11, the device can be conveniently and fixedly mounted at a target position through the mounting holes 11, one end of the cooling pipe 4 is fixedly provided with a connecting flange 12, the cooling pipe 4 can be conveniently connected with a cooling liquid and a pump body through the connecting flange 12, the two sides of the surface of the protective shell 6 are respectively provided with a through groove 13, the middle part of the inner side of the through groove 13 is fixedly provided with a motor 14 through a mounting seat, the output shaft end of the motor 14 is fixedly provided with a blade 15 through a shaft coupling, the motor 14 drives the blade 15 to rotate, so that the heat dissipation effect of the device can be further improved, the outer side surface of the through groove 13 is fixedly provided with a protective net, the blade 15 can be prevented from contacting with foreign, a cable arranging hole 16 is formed in the middle of the surface of the outer side of the protective shell 6, and a cable can be conveniently connected with the circuit board 1 through the cable arranging hole 16.

The working principle is as follows: before the device is used, the device can be fixedly arranged at a target position through the mounting hole 11, the cooling pipe 4 is externally connected with cooling liquid and a pump body through the connecting flange 12, then, the circuit board 1 can be conveniently externally connected with a cable through the wiring hole 16, and when the device is used, if the medium-frequency electric furnace works in a high-power state, the cooling liquid can be pumped into the cooling pipe 4 through the pump body, then, the cooling liquid circulates in the cooling pipe 4 and is contacted with the heat conducting sheet 3 and the lead-in plate, so that heat in the circuit board 1 can be led out and taken away, the heat dissipation effect can be realized, meanwhile, the device can protect the circuit board 1 through the protective shell 6 when in use, the circuit board 1 can be effectively prevented from being polluted by oil stain, metal dust, high-temperature molten iron splashing and the like, when the protective shell 6 needs to be opened to inspect and maintain the circuit board, thereby make the flexure of flexure strip 7 so can drive fixture block 8 and extract from draw-in groove 10 to make fixture block 8 no longer fixed with draw-in groove 10, can take off protection casing 6 this moment, so can conveniently inspect and maintain circuit board 1, and the device drives blade 15 through motor 14 when using and rotates, thereby can discharge the heat of the inside gathering of casing, further improve the radiating effect of device, it is this the utility model relates to an intermediate frequency electric stove automatic safety device's theory of operation.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an intermediate frequency electric stove automatic safety device, includes circuit board (1), its characterized in that: the heat conducting plate (2) is fixedly arranged at the lower end of the circuit board (1), a plurality of heat conducting fins (3) are uniformly and fixedly arranged at the lower end of the heat conducting plate (2), a cooling pipe (4) is fixedly clamped between the heat conducting fins (3), a mounting plate (5) is fixedly arranged at the lower end of each heat conducting fin (3), a protection mechanism is arranged at the upper end of the circuit board (1) and comprises a protection shell (6), elastic pieces (7), clamping blocks (8), fixing blocks (9) and clamping grooves (10), the protection shell (6) is arranged at the upper end of the circuit board (1), the elastic pieces (7) are fixedly arranged on two sides of the surface of the protection shell (6), the clamping blocks (8) are fixedly arranged at the lower ends of the elastic pieces (7), the fixing blocks (9) are fixedly arranged on two sides of the surface of the circuit board, the clamping block (8) is movably clamped and arranged in the clamping groove (10).

2. The automatic protection device for the medium frequency electric furnace according to claim 1, characterized in that: mounting holes (11) are formed in four corners of the outer side surface of the upper end of the mounting plate (5).

3. The automatic protection device for the medium frequency electric furnace according to claim 1, characterized in that: and one end of the cooling pipe (4) is fixedly provided with a connecting flange (12).

4. The automatic protection device for the medium frequency electric furnace according to claim 1, characterized in that: the protection casing (6) surface both sides have all been seted up and have been led to groove (13), it is fixed through the mount pad to lead to the inboard middle part of groove (13) and be provided with motor (14), the output axle head of motor (14) is through the fixed blade (15) that is provided with of shaft coupling.

5. The automatic protection device for the medium frequency electric furnace according to claim 4, characterized in that: and a protective net is fixedly arranged on the outer side surface of the through groove (13).

6. The automatic protection device for the medium frequency electric furnace according to claim 1, characterized in that: the middle part of the outer side surface of the protective shell (6) is provided with a wire arranging hole (16).