阅读说明：本技术 一种滤油机真空泵保护装置 (Vacuum pump protection device of oil filter ) 是由 李琴 戚尤龙 于 2021-07-12 设计创作，主要内容包括：本发明公开了一种滤油机真空泵保护装置,包括基板,所述基板上端外表面的中部固定安装有初步分离机构,所述基板上端外表面的右侧固定安装有防护机构,所述防护机构的内部固定安装有滤油机真空泵,所述防护机构的一侧外表面设置有智能散热机构,所述滤油机真空泵的一侧外表面固定连接有排油管。本发明所述的一种滤油机真空泵保护装置,设置的初步分离机构,将油与杂质分离,油通过导油管排出,避免了杂质对滤油机真空泵造成损害,增加使用寿命,降低维修率,设置的防护机构,通过设置的防护箱,实现对滤油机真空泵的外部进行防护,且设置的防护盖、合页与卡扣,使得滤油机真空泵便于检修维护,便于智能散热,节约成本,带来更好的使用前景。(The invention discloses a vacuum pump protection device of an oil filter, which comprises a substrate, wherein a preliminary separation mechanism is fixedly arranged in the middle of the outer surface of the upper end of the substrate, a protection mechanism is fixedly arranged on the right side of the outer surface of the upper end of the substrate, the oil filter vacuum pump is fixedly arranged in the protection mechanism, an intelligent heat dissipation mechanism is arranged on the outer surface of one side of the protection mechanism, and an oil discharge pipe is fixedly connected to the outer surface of one side of the oil filter vacuum pump. According to the protection device for the vacuum pump of the oil filter, the oil is separated from impurities through the primary separation mechanism, the oil is discharged through the oil guide pipe, the damage of the impurities to the vacuum pump of the oil filter is avoided, the service life is prolonged, the maintenance rate is reduced, the protection mechanism is arranged, the protection of the outside of the vacuum pump of the oil filter is realized through the arranged protection box, and the protection cover, the hinge and the buckle are arranged, so that the vacuum pump of the oil filter is convenient to overhaul and maintain, is convenient to intelligently dissipate heat, saves cost and brings better use prospect.)

1. The utility model provides an oil filter vacuum pump protection device, includes base plate (1), its characterized in that: the oil filter is characterized in that a preliminary separation mechanism (2) is fixedly mounted in the middle of the outer surface of the upper end of the base plate (1), a protection mechanism (4) is fixedly mounted on the right side of the outer surface of the upper end of the base plate (1), an oil filter vacuum pump (3) is fixedly mounted inside the protection mechanism (4), an intelligent heat dissipation mechanism (6) is arranged on the outer surface of one side of the protection mechanism (4), and an oil discharge pipe (5) is fixedly connected to the outer surface of one side of the oil filter vacuum pump (3).

2. The oil filter vacuum pump protection device according to claim 1, characterized in that: preliminary separation mechanism (2) includes separator box (12), mounting panel (13), support column (14), first valve (15), advances oil pipe (16), outlet (17), second valve (18), leads oil pipe (19), check valve (20), separation filter core (21), coalescence filter core (22) and water catch bowl (23), just mounting panel (13) fixed mounting is in the outer wall at separator box (12) middle part, the lower extreme surface of mounting panel (13) passes through the upper end external surface fixed connection of support column (14) with base plate (1), separation filter core (21), coalescence filter core (22) fixed mounting are in the inside of separator box (12), advance oil pipe (16) fixed mounting in the lower extreme surface of coalescence filter core (22), lead oil pipe (19) fixed mounting in the lower extreme surface of separation filter core (21), first valve (15) fixed mounting is in the outer wall of advancing oil pipe (16) one end, the check valve (20) is fixedly arranged on the outer wall of one end of the oil guide pipe (19).

3. The oil filter vacuum pump protection device according to claim 2, characterized in that: coalescence filter core (22) fixed mounting is in the left side of separator box (12) inner chamber, separator filter core (21) fixed mounting is in the right side of separator box (12) inner chamber, the middle part of separator box (12) lower extreme inner wall is seted up in water catch bowl (23), just water catch bowl (23) are located between coalescence filter core (22) and separator filter core (21).

4. The oil filter vacuum pump protection device according to claim 2, characterized in that: the water outlet (17) is fixedly arranged on the outer surface of the lower end of the water collecting tank (23), the second valve (18) is fixedly arranged on the outer wall of the lower portion of the water outlet (17), and the outer surface of one end of the oil guide pipe (19) is fixedly connected with the outer surface of one side of the oil filter vacuum pump (3).

5. The oil filter vacuum pump protection device according to claim 1, characterized in that: protection machanism (4) include protective housing (24), air vent (25), buckle (26), hinge (27) and protective cover (28), just protective housing (24) fixed mounting is in the right side of base plate (1) upper end surface, one side surface of protective housing (24) is seted up in air vent (25), protective cover (28) are located the upper end surface of protective housing (24).

6. The oil filter vacuum pump protection device according to claim 5, characterized in that: the outer surface of one side of protective cover (28) is connected with protective box (24) through hinge (27) rotation, the outer surface of the other side of protective cover (28) is connected with protective box (24) through buckle (26) fixed connection, just oil filter vacuum pump (3) fixed mounting is in protective box (24) inside.

7. The oil filter vacuum pump protection device according to claim 1, characterized in that: intelligence heat dissipation mechanism (6) are including control switch (7), temperature sensor (8), controller (9) and heat dissipation fan (10), just be electric connection between the input of control switch (7) and external power source's the output, be electric connection between the output of control switch (7) and the input of temperature sensor (8), controller (9), be electric connection between the output of temperature sensor (8) and the input of controller (9), be electric connection between the output of controller (9) and the input of heat dissipation fan (10).

8. The oil filter vacuum pump protection device according to claim 7, characterized in that: the heat dissipation fan (10) is fixedly installed on the outer surface of one side of the protection box (24), the temperature sensor (8) is fixedly installed on the inner wall of the protection box (24), and the control switch (7) is fixedly installed on one side of the outer surface of the upper end of the substrate (1).

9. The oil filter vacuum pump protection device according to claim 7, characterized in that: a support rod (11) is arranged between the controller (9) and the substrate (1), and the outer surface of the lower end of the controller (9) is fixedly connected with the outer surface of the upper end of the substrate (1) through the support rod (11).

Technical Field

The invention relates to the technical field of constructional engineering, in particular to a vacuum pump protection device of an oil filter.

Background

The vacuum oil filter is a product for performing on-site oil filtering and oil supplementing aiming at various oil immersed transformers, oil immersed current and voltage transformers and high-voltage less-oil circuit breakers, the vacuum pump is an important component of the vacuum oil filter, high-temperature gas containing a large amount of water vapor is separated from a vacuum separation tank in the use of the oil filter vacuum pump in the market, the gas is sucked and discharged by the vacuum pump, and the separated gas has a higher temperature and can form a heating effect on the vacuum pump in the discharging process.

In the prior art, a chinese patent document with an authorization publication number of CN202021504808.0 describes an oil filter vacuum pump protection device, in which an oil pump forms a circulation system with an oil outlet and a recovery oil port, and the oil outlet and the recovery oil port are distributed horizontally, when a user uses the oil filter vacuum pump protection device to filter oil, crude oil in an oil storage tank is pumped through an oil pumping pipe on the oil pump, then flows into the oil outlet pipe at the oil outlet, finally enters a vacuum pump through an oil inlet to filter oil in the next step, the crude oil remaining on an oil filter screen is concentrated to a one-way valve through the recovery oil port, and further flows into the oil storage tank to be pumped through the oil pump, so that the whole oil pumping and filtering cycle is completed, because the existence of the circulation system improves the efficiency of crude oil filtration, the crude oil has the functions of recovery and filtration, the waste of crude oil is avoided, and the cost for filtering the crude oil is saved; the connecting frame and the vacuum pump form a thread structure through the hexagonal screw and are on the same central axis, the fan on the connecting frame can be firstly detached from the vacuum pump through the hexagonal screw due to the thread structure formed by the hexagonal screw and the vacuum pump, when the connection of the fan and the vacuum pump is loosened, the fan can be fastened by manually screwing the hexagonal screw in time, the phenomenon that the inner wall of the vacuum pump is scratched due to the falling or breaking of fan blades caused by the loosening of the connection when the fan works is avoided, the service life of the vacuum pump is prolonged, however, the oil-water separation effect is poor, the protection of the vacuum pump of the oil filter is not only protected from the outside but also protected from the process, the vacuum pump is generally placed in the protection device in the prior art, and only the surface of the vacuum pump can be protected from being damaged, however, when the oil is too much, the oil remaining inside the vacuum pump will damage the mechanism inside the vacuum pump, and therefore, a protection device for the vacuum pump of the oil filter is provided.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a protection device for a vacuum pump of an oil filter, which has the advantages of good protection effect, convenience in intelligent heat dissipation, long service life and the like of the vacuum pump of the oil filter, and can effectively solve the problems in the background art.

(II) technical scheme

In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides an oil filter vacuum pump protection device, includes the base plate, the middle part fixed mounting of base plate upper end surface has preliminary separating mechanism, the right side fixed mounting of base plate upper end surface has protection machanism, protection machanism's inside fixed mounting has the oil filter vacuum pump, one side surface of protection machanism is provided with intelligent heat dissipation mechanism, one side surface fixed connection of oil filter vacuum pump has the oil extraction pipe.

Preferably, preliminary separating mechanism includes separator box, mounting panel, support column, first valve, advances oil pipe, outlet, second valve, leads oil pipe, check valve, separation filter core, coalescence filter core and water catch bowl, just mounting panel fixed mounting is in the outer wall at separator box middle part, the lower extreme surface of mounting panel passes through the upper end fixed surface connection of support column and base plate, separation filter core, coalescence filter core fixed mounting are in the inside of separator box, advance oil pipe fixed mounting in the lower extreme surface of coalescence filter core, it installs in the lower extreme surface of separation filter core to lead oil pipe fixed mounting, first valve fixed mounting advances the outer wall of oil pipe one end, check valve fixed mounting and the one end outer wall of leading oil pipe.

Preferably, coalescence filter core fixed mounting is in the left side of separator box inner chamber, separation filter core fixed mounting is in the right side of separator box inner chamber, the water catch bowl is seted up in the middle part of separator box lower extreme inner wall, just the water catch bowl is located between coalescence filter core and the separation filter core.

Preferably, the water outlet is fixedly arranged on the outer surface of the lower end of the water collecting tank, the second valve is fixedly arranged on the outer wall of the lower portion of the water outlet, and the outer surface of one end of the oil guide pipe is fixedly connected with the outer surface of one side of the vacuum pump of the oil filter.

Preferably, protection machanism includes protective housing, air vent, buckle, hinge and protective cover, just protective housing fixed mounting is on the right side of base plate upper end surface, one side surface of protective housing is seted up to the air vent, the protective cover is located the upper end surface of protective housing.

Preferably, the outer surface of one side of the protective cover is rotatably connected with the protective box through a hinge, the outer surface of the other side of the protective cover is fixedly connected with the protective box through a buckle, and the oil filter vacuum pump is fixedly arranged inside the protective box.

Preferably, intelligence heat dissipation mechanism includes control switch, temperature sensor, controller and heat dissipation fan, just be electric connection between control switch's input and external power source's the output, be electric connection between control switch's the output and the input of temperature sensor, controller, be electric connection between temperature sensor's the output and the input of controller, be electric connection between the output of controller and the input of heat dissipation fan.

Preferably, the heat dissipation fan is fixedly installed on the outer surface of one side of the protection box, the temperature sensor is fixedly installed on the inner wall of the protection box, and the control switch is fixedly installed on one side of the outer surface of the upper end of the substrate.

Preferably, a support rod is arranged between the controller and the substrate, and the outer surface of the lower end of the controller is fixedly connected with the outer surface of the upper end of the substrate through the support rod.

(III) advantageous effects

Compared with the prior art, the invention provides a protection device for a vacuum pump of an oil filter, which has the following beneficial effects:

1. the protection device for the vacuum pump of the oil filter comprises a coalescing filter element, a collecting tank, a vacuum pump, a first oil guide pipe, a second oil guide pipe, a third oil guide pipe, a fourth oil guide pipe, a fifth oil guide pipe, a sixth oil guide pipe, a fifth oil guide pipe, a sixth oil guide pipe, a fifth oil guide pipe, a sixth oil, a fifth oil guide pipe, a sixth oil guide pipe and a sixth oil, a fifth oil, a sixth oil pipe, a fifth oil, a sixth oil, a fifth oil pipe, a sixth oil pipe, a fifth oil, a sixth oil pipe and a fifth oil pipe, a sixth oil, a fifth oil pipe, a sixth oil pipe, a fifth oil, a sixth oil pipe, a sixth oil pipe, a sixth oil, a fifth oil, a sixth oil pipe, a fifth oil pipe, a sixth oil, a fifth oil pipe, a sixth oil, a fifth oil, a sixth oil pipe, a sixth oil, a fifth oil, a sixth oil pipe, a sixth oil, a fifth oil pipe, a fifth oil, a sixth oil, a fifth oil pipe, a sixth oil.

2. This oil filter vacuum pump protection device, the protection machanism of setting through the protective housing that sets up, realizes protecting the outside of oil filter vacuum pump, further increases life, and protective cover, hinge and the buckle that sets up for the oil filter vacuum pump is convenient for overhaul and maintain.

3. The protection device for the vacuum pump of the oil filter can generate more heat when the vacuum pump of the oil filter operates, the vacuum pump of the oil filter is subjected to continuous air cooling and temperature reduction in the prior art, because the radiating fins are arranged on the outer surface of the vacuum pump of the oil filter, the protection device has a certain radiating effect, continuous air cooling and heat dissipation are not needed, energy is not saved, the intelligent radiating mechanism is arranged, the control switch is connected with an external power supply, and then the control switch is pressed down, so that the temperature sensor and the controller start to operate, when the temperature in the protective box reaches the set temperature, the temperature sensor transmits a signal to the controller, the controller controls the heat dissipation fan to operate, the outer wall of the vacuum pump of the oil filter is cooled by air, the cost is saved, the specification of the controller can be customized, the measurement error is +/-1 ℃, the working voltage is 5V, the output signal is 10mA, and the precision grade is I.

Drawings

Fig. 1 is a schematic overall structure diagram of a vacuum pump protection device of an oil filter.

Fig. 2 is a schematic structural diagram of a preliminary separation mechanism in the vacuum pump protection device of the oil filter.

Fig. 3 is a schematic diagram of an internal structure of a preliminary separation mechanism in the protection device for the vacuum pump of the oil filter.

Fig. 4 is a working schematic diagram of an intelligent heat dissipation mechanism in the vacuum pump protection device of the oil filter.

Fig. 5 is a schematic structural diagram of a protection mechanism in the vacuum pump protection device of the oil filter.

Fig. 6 is a schematic structural diagram of a heat dissipation fan in the vacuum pump protection device of the oil filter.

In the figure: 1. a substrate; 2. a preliminary separation mechanism; 3. a vacuum pump of the oil filter; 4. a protection mechanism; 5. an oil discharge pipe; 6. an intelligent heat dissipation mechanism; 7. a control switch; 8. a temperature sensor; 9. a controller; 10. a heat dissipation fan; 11. a support bar; 12. a separation tank; 13. mounting a plate; 14. a support pillar; 15. a first valve; 16. an oil inlet pipe; 17. a water outlet; 18. a second valve; 19. an oil guide pipe; 20. a one-way valve; 21. separating the filter element; 22. a coalescing filter element; 23. a water collection tank; 24. a protective box; 25. a vent hole; 26. buckling; 27. a hinge; 28. a protective cover.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Detailed description of the preferred embodiment

The embodiment is an oil filter vacuum pump protection device.

As shown in fig. 1-6, the oil filter comprises a substrate 1, a preliminary separation mechanism 2 is fixedly mounted in the middle of the outer surface of the upper end of the substrate 1, a protection mechanism 4 is fixedly mounted on the right side of the outer surface of the upper end of the substrate 1, an oil filter vacuum pump 3 is fixedly mounted inside the protection mechanism 4, an intelligent heat dissipation mechanism 6 is arranged on the outer surface of one side of the protection mechanism 4, and an oil discharge pipe 5 is fixedly connected to the outer surface of one side of the oil filter vacuum pump 3.

The primary separation mechanism 2 comprises a separation box 12, a mounting plate 13, a support column 14, a first valve 15, an oil inlet pipe 16, a water outlet 17, a second valve 18, an oil guide pipe 19, a one-way valve 20, a separation filter element 21, a coalescence filter element 22 and a water collecting tank 23, wherein the mounting plate 13 is fixedly mounted on the outer wall of the middle part of the separation box 12, the outer surface of the lower end of the mounting plate 13 is fixedly connected with the outer surface of the upper end of the substrate 1 through the support column 14, the separation filter element 21 and the coalescence filter element 22 are fixedly mounted inside the separation box 12, the oil inlet pipe 16 is fixedly mounted on the outer surface of the lower end of the coalescence filter element 22, the oil guide pipe 19 is fixedly mounted on the outer surface of the lower end of the separation filter element 21, the first valve 15 is fixedly mounted on the outer wall of one end of the oil inlet pipe 16, and the one end of the one-way valve 20 is fixedly mounted on the outer wall of the oil guide pipe 19; the coalescence filter element 22 is fixedly arranged at the left side of the inner cavity of the separation box 12, the separation filter element 21 is fixedly arranged at the right side of the inner cavity of the separation box 12, the water collecting tank 23 is arranged at the middle part of the inner wall of the lower end of the separation box 12, and the water collecting tank 23 is positioned between the coalescence filter element 22 and the separation filter element 21; the water outlet 17 is fixedly arranged on the outer surface of the lower end of the water collecting tank 23, the second valve 18 is fixedly arranged on the outer wall of the lower part of the water outlet 17, and the outer surface of one end of the oil guide pipe 19 is fixedly connected with the outer surface of one side of the vacuum pump 3 of the oil filter; the protection mechanism 4 comprises a protection box 24, a vent hole 25, a buckle 26, a hinge 27 and a protection cover 28, the protection box 24 is fixedly arranged on the right side of the outer surface of the upper end of the base plate 1, the vent hole 25 is arranged on the outer surface of one side of the protection box 24, and the protection cover 28 is positioned on the outer surface of the upper end of the protection box 24; the outer surface of one side of the protective cover 28 is rotatably connected with the protective box 24 through a hinge 27, the outer surface of the other side of the protective cover 28 is fixedly connected with the protective box 24 through a buckle 26, and the oil filter vacuum pump 3 is fixedly arranged inside the protective box 24; the intelligent heat dissipation mechanism 6 comprises a control switch 7, a temperature sensor 8, a controller 9 and a heat dissipation fan 10, wherein the input end of the control switch 7 is electrically connected with the output end of an external power supply, the output end of the control switch 7 is electrically connected with the input ends of the temperature sensor 8 and the controller 9, the output end of the temperature sensor 8 is electrically connected with the input end of the controller 9, and the output end of the controller 9 is electrically connected with the input end of the heat dissipation fan 10; the heat dissipation fan 10 is fixedly arranged on the outer surface of one side of the protective box 24, the temperature sensor 8 is fixedly arranged on the inner wall of the protective box 24, and the control switch 7 is fixedly arranged on one side of the outer surface of the upper end of the substrate 1; a support rod 11 is arranged between the controller 9 and the substrate 1, and the outer surface of the lower end of the controller 9 is fixedly connected with the outer surface of the upper end of the substrate 1 through the support rod 11.

It should be noted that, the invention is a protection device for vacuum pump of oil filter, the primary separation mechanism 2 is arranged, firstly, the oil is led into the coalescing filter element 22 inside the separation box 12 through the oil inlet pipe 16, after the oil product flows into the coalescing filter element 22, the solid impurities are filtered by the coalescing filter element 22, and the tiny water drops are coalesced into larger water drops, most of the coalesced water drops can be separated and removed from the oil by the dead weight and settled into the water collecting tank 23, then the oil and water are separated through the separation filter element 21, the oil is discharged through the oil guide pipe 19, the damage of the impurities to the vacuum pump 3 of the oil filter is avoided, the service life is prolonged, and the maintenance rate is reduced; the protection mechanism 4 is arranged, the protection is realized outside the oil filter vacuum pump 3 through the protection box 24, the service life is further prolonged, and the protection cover 28, the hinge 27 and the buckle 26 are arranged, so that the oil filter vacuum pump 3 is convenient to overhaul and maintain; when the oil filter vacuum pump 3 is operated, a large amount of heat can be generated, in the prior art, the oil filter vacuum pump 3 is subjected to continuous air cooling and temperature reduction, because the heat dissipation fins are arranged on the outer surface of the oil filter vacuum pump 3, the oil filter vacuum pump 3 has a certain heat dissipation effect, continuous air cooling and heat dissipation are not needed, energy is not saved enough, the intelligent heat dissipation mechanism 6 is arranged, the control switch 7 is connected with an external power supply, the control switch 7 is pressed down, the temperature sensor 8 and the controller 9 start to operate, when the temperature in the protective box 24 reaches the set temperature, the temperature sensor 8 transmits a signal to the controller 9, the controller 9 controls the heat dissipation fan 10 to operate, the outer wall of the oil filter vacuum pump 3 is cooled by air, the cost is saved, the specification of the controller 9 can be customized, the measurement error is +/-1 ℃, the working voltage is 5V, the output signal is 10mA, and the precision grade is I.

Detailed description of the invention

The embodiment is an embodiment of a preliminary separation mechanism 2 in a vacuum pump protection device of an oil filter.

As shown in fig. 1, 2 and 3, a preliminary separation mechanism 2 for a vacuum pump protection device of an oil filter, the preliminary separation mechanism 2 comprises a separation tank 12, a mounting plate 13, a support column 14, a first valve 15, an oil inlet pipe 16, a water outlet 17, a second valve 18, an oil guide pipe 19, a one-way valve 20, a separation filter element 21, a coalescing filter element 22 and a water collecting tank 23, the mounting plate 13 is fixedly mounted on the outer wall of the middle part of the separation box 12, the outer surface of the lower end of the mounting plate 13 is fixedly connected with the outer surface of the upper end of the substrate 1 through the support column 14, the separation filter element 21 and the coalescence filter element 22 are fixedly mounted inside the separation box 12, the oil inlet pipe 16 is fixedly mounted on the outer surface of the lower end of the coalescence filter element 22, the oil guide pipe 19 is fixedly mounted on the outer surface of the lower end of the separation filter element 21, the first valve 15 is fixedly mounted on the outer wall of one end of the oil inlet pipe 16, and the check valve 20 is fixedly mounted on the outer wall of one end of the oil guide pipe 19; the coalescence filter element 22 is fixedly arranged at the left side of the inner cavity of the separation box 12, the separation filter element 21 is fixedly arranged at the right side of the inner cavity of the separation box 12, the water collecting tank 23 is arranged at the middle part of the inner wall of the lower end of the separation box 12, and the water collecting tank 23 is positioned between the coalescence filter element 22 and the separation filter element 21; the water outlet 17 is fixedly arranged on the outer surface of the lower end of the water collecting tank 23, the second valve 18 is fixedly arranged on the outer wall of the lower part of the water outlet 17, and the outer surface of one end of the oil guide pipe 19 is fixedly connected with the outer surface of one side of the vacuum pump 3 of the oil filter.

Detailed description of the preferred embodiment

The embodiment is an embodiment of a protection mechanism 4 in a vacuum pump protection device of an oil filter.

As shown in fig. 1, 5 and 6, a protection mechanism 4 for a vacuum pump protection device of an oil filter, the protection mechanism 4 includes a protection box 24, a vent 25, a buckle 26, a hinge 27 and a protection cover 28, the protection box 24 is fixedly installed on the right side of the outer surface of the upper end of a base plate 1, the vent 25 is opened on the outer surface of one side of the protection box 24, and the protection cover 28 is located on the outer surface of the upper end of the protection box 24; the outer surface of one side of protective cover 28 is connected with protective box 24 through hinge 27, and the outer surface of the other side of protective cover 28 is fixedly connected with protective box 24 through buckle 26, and oil filter vacuum pump 3 is fixedly installed in protective box 24.

Detailed description of the invention

The embodiment is an embodiment of an intelligent heat dissipation mechanism 6 in a vacuum pump protection device of an oil filter.

As shown in fig. 1, 4, and 5, an intelligent heat dissipation mechanism 6 for a vacuum pump protection device of an oil filter includes a control switch 7, a temperature sensor 8, a controller 9, and a heat dissipation fan 10, where an input terminal of the control switch 7 is electrically connected to an output terminal of an external power supply, an output terminal of the control switch 7 is electrically connected to the temperature sensor 8 and the input terminal of the controller 9, an output terminal of the temperature sensor 8 is electrically connected to an input terminal of the controller 9, and an output terminal of the controller 9 is electrically connected to an input terminal of the heat dissipation fan 10; the heat dissipation fan 10 is fixedly arranged on the outer surface of one side of the protective box 24, the temperature sensor 8 is fixedly arranged on the inner wall of the protective box 24, and the control switch 7 is fixedly arranged on one side of the outer surface of the upper end of the substrate 1; a support rod 11 is arranged between the controller 9 and the substrate 1, and the outer surface of the lower end of the controller 9 is fixedly connected with the outer surface of the upper end of the substrate 1 through the support rod 11.

It is noted that, herein, relational terms such as first and second (a, b, etc.) 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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.