阅读说明：本技术 一种带有防护结构的高电压大功率步进电机控制装置 (High-voltage high-power stepping motor control device with protective structure ) 是由 刘文刚 汪滑翔 于 2021-06-23 设计创作，主要内容包括：本发明公开了一种带有防护结构的高电压大功率步进电机控制装置,属于电机技术领域,包括：保护箱,保护箱内设置有控制器主体,保护箱的前后两端均开设有多个接线孔,保护箱的上端开设有四个插槽；垫板,垫板设置为四个,四个垫板均设置于保护箱的底部；安装孔,安装孔开设于保护箱内；定位槽,定位槽设置为四个,四个定位槽均开设于保护箱的上端；减震机构,减震机构设置为两组,两组减震机构均设置于保护箱的底部,本发明通过第一盖板、第二盖板和第三弹簧的相互配合进行保护了控制器主体不会因为直接的冲击力损坏,又通过减震机构的两次减震缓冲,进一步地提高了对控制器主体的保护效果。(The invention discloses a high-voltage high-power stepping motor control device with a protective structure, which belongs to the technical field of motors and comprises: the protection box is internally provided with a controller main body, a plurality of wiring holes are formed in the front end and the rear end of the protection box, and four slots are formed in the upper end of the protection box; the four base plates are arranged at the bottom of the protection box; the mounting hole is formed in the protection box; the number of the positioning grooves is four, and the four positioning grooves are all arranged at the upper end of the protection box; the controller main body is protected from being damaged by direct impact force through the mutual matching of the first cover plate, the second cover plate and the third spring, and the protection effect on the controller main body is further improved through twice shock absorption and buffering of the shock absorption mechanisms.)

1. The utility model provides a high-power step motor controlling means of high voltage with protective structure which characterized in that includes:

the protection box comprises a protection box (1), wherein a controller main body (25) is arranged in the protection box (1), a plurality of wiring holes (20) are formed in the front end and the rear end of the protection box (1), and four slots (21) are formed in the upper end of the protection box (1);

the number of the base plates (15) is four, and the four base plates (15) are arranged at the bottom of the protection box (1);

the mounting hole (34), the said mounting hole (34) is opened in the guard box (1);

the number of the positioning grooves (30) is four, and the four positioning grooves (30) are all arranged at the upper end of the protection box (1);

the damping mechanisms are arranged in two groups, the two groups of damping mechanisms are arranged at the bottom of the protection box (1), and the two groups of damping mechanisms are connected with the protection box (1) and four base plates (15) to realize damping of the protection box (1);

the buffer mechanism is arranged in the protection box (1) and is connected with the controller main body (25) to protect the controller main body (25);

the heat dissipation mechanism is arranged in the mounting hole (34) and connected with the protection box (1) to dissipate heat of the controller main body (25).

2. The high-voltage high-power stepping motor control device with the protection structure according to claim 1, wherein: every group damper all includes first damper and second damper, first damper sets up to two sets of, two sets of first damper all sets up in the bottom of guard box (1), second damper sets up between two sets of first dampers, second damper links to each other with two sets of first dampers in order to realize improving the shock attenuation effect.

3. The high-voltage high-power stepping motor control device with the protection structure according to claim 2, wherein: every group first damper assembly all includes depression bar (2), holding down bar (4), first spring (6) and spacing sleeve (7), go up depression bar (2) fixed connection in the lower extreme of guard box (1), holding down bar (4) fixed connection is in the upper end of backing plate (15) down, first spring (6) fixed connection is between last depression bar (2) and holding down bar (4), spacing sleeve (7) cover is located between depression bar (2) and holding down bar (4), first spring (6) are located spacing sleeve (7).

4. The high-voltage high-power stepping motor control device with the protection structure according to claim 3, wherein: the second damping assembly comprises a first upper connecting seat (3), a first lower connecting seat (5), a slide rod (8), a slide block (9), a second lower connecting seat (10), a second upper connecting seat (11), a second spring (12), an upper connecting rod (13) and a lower connecting rod (14), the number of the first upper connecting seat (3), the number of the first lower connecting seat (5), the number of the slide block (9), the number of the second lower connecting seat (10), the number of the second upper connecting seat (11), the number of the upper connecting rod (13) and the number of the lower connecting rod (14) are respectively two, the two first upper connecting seats (3) are respectively and fixedly connected to the surfaces of the two upper pressure rods (2), the two first lower connecting seats (5) are respectively and fixedly connected to the surfaces of the two lower pressure rods (4), the slide rod (8) is fixedly connected between the two limiting sleeves (7), and the two slide blocks (9) are both in sliding connection with the surfaces of the slide rod (8), the second spring (12) is fixedly connected between the two sliding blocks (9), the second spring (12) is sleeved on the surface of the sliding rod (8), the two second lower connecting seats (10) are respectively and fixedly connected to the lower ends of the two sliding blocks (9), the two second upper connecting seats (11) are respectively and fixedly connected to the upper ends of the two sliding blocks (9), one ends of the two upper connecting rods (13) are respectively and movably hinged into the two first upper connecting seats (3), the other ends of the two upper connecting rods (13) are respectively and movably hinged into the two second upper connecting seats (11), one ends of the two lower connecting rods (14) are respectively and movably hinged into the two first lower connecting seats (5), and the other ends of the two lower connecting rods (14) are respectively and movably hinged into the two second lower connecting seats (10).

5. The high-voltage high-power stepping motor control device with the protection structure according to claim 4, wherein: buffer gear includes installation component and buffering subassembly, installation component and buffering subassembly all set up in guard box (1), the buffering subassembly links to each other in order to realize the buffering with the installation component.

6. The high-voltage high-power stepping motor control device with the protection structure according to claim 5, wherein: the mounting assembly comprises positioning rods (22), insert blocks (23) and a mounting box (24), the number of the positioning rods (22) and the number of the insert blocks (23) are four, the four positioning rods (22) are fixedly connected into the four slots (21) respectively, the four insert blocks (23) are movably inserted into the four slots (21) respectively, the four insert blocks (23) are connected onto the surfaces of the four positioning rods (22) in a sliding mode respectively, the mounting box (24) is fixedly connected among the four insert blocks (23), and the controller main body (25) is mounted in the mounting box (24).

7. The high-voltage high-power stepping motor control device with the protection structure according to claim 6, wherein: buffer unit includes first apron (26), second apron (27) and third spring (28), first apron (26) are located the upper end of install bin (24), first apron (26) sliding connection is in four slots (21), and first apron (26) sliding connection is in the surface of four locating levers (22), second apron (27) are through a plurality of third spring (28) and first apron (26) fixed connection, second apron (27) sliding connection is in four slots (21), and second apron (27) sliding connection is in the surface of four locating levers (22).

8. The high-voltage high-power stepping motor control device with the protection structure according to claim 7, wherein: heat dissipation mechanism includes louvre (16), mounting bracket (17), exhaust fan (18) and dust screen (19), louvre (16) sets up to a plurality of, and is a plurality of both ends about shutter box (1) are seted up respectively in louvre (16), mounting bracket (17) fixed connection is in mounting hole (34), install on mounting bracket (17) exhaust fan (18), install in mounting hole (34) dust screen (19).

9. The high-voltage high-power stepping motor control device with the protection structure according to claim 8, wherein: the protection box (1) is detachably connected with a top plate (31), the lower end of the top plate (31) is fixedly connected with four positioning blocks (32), and the four positioning blocks (32) are movably inserted into the four positioning grooves (30).

10. The high-voltage high-power stepping motor control device with the protection structure according to claim 9, wherein: the upper end of the top plate (31) is fixedly connected with two second handles (33), and the left end and the right end of the second cover plate (27) are fixedly connected with a first handle (29).

Technical Field

The invention relates to the technical field of motors, in particular to a high-voltage high-power stepping motor control device with a protection structure.

Background

The step motor is an open-loop control element step motor part which converts an electric pulse signal into angular displacement or linear displacement. In the non-overload condition, the rotation speed and the stop position of the motor only depend on the frequency and the pulse number of the pulse signal and are not influenced by the load change, when the stepping driver receives a pulse signal, the stepping driver drives the stepping motor to rotate by a fixed angle called a step angle according to a set direction, and the rotation of the stepping motor is operated by one step at the fixed angle. The angular displacement can be controlled by controlling the number of pulses, so that the aim of accurate positioning is fulfilled; meanwhile, the rotating speed and the rotating acceleration of the motor can be controlled by controlling the pulse frequency, so that the aim of speed regulation is fulfilled.

Most of the high-voltage high-power stepping motor controllers commonly used at present do not have a protection structure, and when the controllers are used, the controllers can be damaged due to external factors when the controllers are used due to the fact that the protection structure is not arranged.

Disclosure of Invention

Aiming at the problems in the prior art, the invention aims to provide a high-voltage high-power stepping motor control device with a protection structure.

In order to solve the problems, the invention adopts the following technical scheme:

a high-voltage high-power stepping motor control device with a protection structure comprises:

the protection box is internally provided with a controller main body, a plurality of wiring holes are formed in the front end and the rear end of the protection box, and four slots are formed in the upper end of the protection box;

the number of the base plates is four, and the four base plates are all arranged at the bottom of the protection box;

the mounting hole is formed in the protection box;

the number of the positioning grooves is four, and the four positioning grooves are all arranged at the upper end of the protection box;

the damping mechanisms are arranged in two groups, the two groups of damping mechanisms are arranged at the bottom of the protection box, and the two groups of damping mechanisms are connected with the protection box and the four base plates to realize damping on the protection box;

the buffer mechanism is arranged in the protection box and connected with the controller main body to protect the controller main body;

the heat dissipation mechanism is arranged in the mounting hole and connected with the protection box to dissipate heat of the controller main body.

As a preferable scheme of the invention, each group of damping mechanisms comprises first damping assemblies and second damping assemblies, the first damping assemblies are arranged in two groups, the two groups of first damping assemblies are arranged at the bottom of the protection box, the second damping assemblies are arranged between the two groups of first damping assemblies, and the second damping assemblies are connected with the two groups of first damping assemblies to achieve the effect of improving damping.

As a preferable scheme of the invention, each group of the first damping assemblies comprises an upper pressure lever, a lower pressure lever, a first spring and a limiting sleeve, the upper pressure lever is fixedly connected to the lower end of the protection box, the lower pressure lever is fixedly connected to the upper end of the backing plate, the first spring is fixedly connected between the upper pressure lever and the lower pressure lever, the limiting sleeve is sleeved between the upper pressure lever and the lower pressure lever, and the first spring is located in the limiting sleeve.

As a preferred embodiment of the present invention, the second damping assembly includes two first upper connecting seats, two first lower connecting seats, two sliding blocks, two second lower connecting seats, two second upper connecting seats, two second springs, two upper connecting rods and two lower connecting rods, the two first upper connecting seats, the two first lower connecting seats, the two sliding blocks, the two second lower connecting seats, the two sliding blocks, the two second springs, the two second lower connecting seats, the two sliding blocks, the two springs, the two lower connecting seats, the two second upper connecting seats are respectively and fixedly connected to the upper ends of the two sliding blocks, one ends of the two upper connecting rods are respectively and movably hinged to the two first upper connecting seats, the other ends of the two upper connecting rods are respectively and movably hinged to the two second upper connecting seats, one ends of the two lower connecting rods are respectively and movably hinged to the two first lower connecting seats, and the other ends of the two lower connecting rods are respectively and movably hinged to the two second lower connecting seats.

As a preferable scheme of the invention, the buffer mechanism comprises an installation component and a buffer component, the installation component and the buffer component are both arranged in the protection box, and the buffer component is connected with the installation component to realize buffering.

As a preferred scheme of the present invention, the mounting assembly includes four positioning rods, four insertion blocks and a mounting box, the four positioning rods are respectively and fixedly connected to the four slots, the four insertion blocks are respectively and movably inserted into the four slots, the four insertion blocks are respectively and slidably connected to surfaces of the four positioning rods, the mounting box is fixedly connected between the four insertion blocks, and the controller main body is mounted in the mounting box.

As a preferable scheme of the present invention, the buffer assembly includes a first cover plate, a second cover plate, and third springs, the first cover plate is located at the upper end of the installation box, the first cover plate is slidably connected in the four slots, the first cover plate is slidably connected to the surfaces of the four positioning rods, the second cover plate is fixedly connected to the first cover plate through the third springs, the second cover plate is slidably connected in the four slots, and the second cover plate is slidably connected to the surfaces of the four positioning rods.

As a preferred scheme of the present invention, the heat dissipation mechanism includes a plurality of heat dissipation holes, a mounting bracket, an exhaust fan, and a dust screen, the plurality of heat dissipation holes are respectively formed at the left and right ends of the protection box, the mounting bracket is fixedly connected to the mounting hole, the exhaust fan is mounted on the mounting bracket, and the dust screen is mounted in the mounting hole.

As a preferable scheme of the invention, the protection box is detachably connected with a top plate, the lower end of the top plate is fixedly connected with four positioning blocks, and the four positioning blocks are movably inserted into the four positioning grooves.

As a preferable scheme of the present invention, two second handles are fixedly connected to the upper end of the top plate, and a first handle is fixedly connected to both the left and right ends of the second cover plate.

Compared with the prior art, the invention has the advantages that:

(1) when the device is used, when an external force impacts downwards from the top, the impact force applied to the top plate is primarily protected through the mutual matching of the first cover plate, the second cover plate and the third spring, the controller main body is prevented from being damaged due to the external impact force, the impact force applied to the top plate is transmitted to the bottom damping mechanism through the protection box, when the bottom damping mechanism receives the impact force, the upper pressure rod and the lower pressure rod can extrude the first spring due to the mutual action of the forces, the first spring offsets a part of the pressure of the upper pressure rod and the lower pressure rod through the self elastic action, the force applied to the protection box is offset through the mutual matching of the upper pressure rod, the lower pressure rod and the first spring, the controller main body is further protected from being damaged, when the upper pressure rod and the lower pressure rod extrude the first spring, the upper connecting rod and the lower connecting rod push the sliding block to move on the surface of the sliding rod under the movement of the upper pressure rod and the lower pressure rod, the second spring is compressed by the movement of the sliding block, and the ground force applied to the protection box is offset for the second time through the mutual matching of the sliding block, the second spring, the upper connecting rod and the lower connecting rod.

(2) When heat dissipation is needed, the exhaust fan is started, heat generated by the controller main body is dissipated through the exhaust fan, damage caused by overhigh temperature of the controller main body when the controller main body is used is prevented, and the protection effect on the controller main body is further achieved.

(3) In the invention, the top plate is convenient for closing the protection box, the detachable connection is convenient for opening the top plate, the positioning block and the positioning groove are matched with each other to improve the connection stability of the top plate and the protection box, the two second handles are convenient for lifting the top plate, the first handle is convenient for taking the second cover plate out of the protection box, and the second cover plate is in sliding fit with the positioning rod.

Drawings

FIG. 1 is an overall exploded view of a high voltage high power stepper motor control device with a protective structure according to the present invention;

FIG. 2 is a front perspective view of a high voltage high power stepper motor control device with a protective structure of the present invention;

FIG. 3 is a schematic view of the underside of the top plate of the control device of the high voltage high power stepping motor with protective structure of the present invention;

FIG. 4 is a schematic view of the inside of a protection box of the control device of the high-voltage high-power stepping motor with a protection structure according to the present invention;

FIG. 5 is a schematic view of a heat dissipation mechanism of a high-voltage high-power stepping motor control device with a protection structure according to the present invention;

FIG. 6 is an exploded view of a buffer mechanism of a high voltage high power stepper motor control device with a protective structure of the present invention;

FIG. 7 is a bottom view of the buffering mechanism of the control device of the high voltage high power stepping motor with protection structure of the present invention;

fig. 8 is an exploded view of a shock absorbing mechanism of a high voltage high power stepping motor control device with a protective structure according to the present invention.

The reference numbers in the figures illustrate:

1. a protection box; 2. an upper pressure lever; 3. a first upper connecting seat; 4. a lower pressure lever; 5. a first lower connecting seat; 6. a first spring; 7. a limiting sleeve; 8. a slide bar; 9. a slider; 10. a second lower connecting seat; 11. a second upper connecting seat; 12. a second spring; 13. an upper connecting rod; 14. a lower connecting rod; 15. a base plate; 16. heat dissipation holes; 17. a mounting frame; 18. an exhaust fan; 19. a dust screen; 20. a wiring hole; 21. a slot; 22. positioning a rod; 23. inserting a block; 24. installing a box; 25. a controller main body; 26. a first cover plate; 27. a second cover plate; 28. a third spring; 29. a first handle; 30. positioning a groove; 31. a top plate; 32. positioning blocks; 33. a second handle; 34. and (7) installing holes.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

referring to fig. 1-8, a high voltage high power stepping motor control device with a protection structure includes:

the protection box 1 is provided with controller main part 25 in the protection box 1, and a plurality of wiring holes 20 have all been seted up at both ends around the protection box 1, and four slots 21 have been seted up to the upper end of protection box 1.

In this embodiment, the wiring hole 20 is for facilitating connection of an external wire, the slot 21 is for facilitating insertion of the insertion block 23, and it should be noted that: the controller body 25 is well known to those skilled in the art, and therefore, the internal results thereof will not be described in detail.

The backing plate 15, backing plate 15 set up to four, and four backing plates 15 all set up in the bottom of guard box 1.

In this embodiment, the pad plate 15 is for the convenience of supporting the damper mechanism.

And the mounting hole 34, wherein the mounting hole 34 is arranged in the protection box 1.

In this embodiment, the mounting holes 34 are for facilitating the mounting of the heat dissipation mechanism.

The constant head tank 30, constant head tank 30 sets up to four, and four constant head tanks 30 all open the upper end of locating guard box 1.

In this embodiment, the positioning groove 30 is for facilitating the insertion of the positioning block 32, and the mutual matching between the positioning block 32 and the positioning groove 30 is for facilitating the improvement of the connection stability between the top plate 31 and the protection box 1.

Specifically, damper sets up to two sets ofly, and two sets of damper all sets up in the bottom of guard box 1, and every damper of group all includes first damper and second damper, and first damper sets up to two sets ofly, and two sets of first damper all set up in the bottom of guard box 1, and second damper sets up between two sets of first dampers, and second damper links to each other with two sets of first dampers in order to realize improving the shock attenuation effect.

In this embodiment, every group damper all includes first damper and second damper, and first damper sets up to two sets of, and two sets of first damper all set up in guard box 1's bottom, and second damper sets up between two sets of first dampers, and second damper links to each other with two sets of first dampers in order to realize improving the shock attenuation effect.

Specifically, every first damper of group all includes depression bar 2, lower depression bar 4, first spring 6 and stop collar 7, goes up depression bar 2 fixed connection in the lower extreme of guard box 1, and lower depression bar 4 fixed connection is in the upper end of backing plate 15, and first spring 6 fixed connection is between last depression bar 2 and lower depression bar 4, and stop collar 7 cover is located between depression bar 2 and the lower depression bar 4, and first spring 6 is located stop collar 7.

In this embodiment, the mutual cooperation of the upper pressure rod 2, the lower pressure rod 4 and the limiting sleeve 7 of the first spring 6 is to facilitate the primary damping effect on the protection box 1, and the mutual cooperation of the first damping component and the second damping component further improves the damping effect on the protection box 1, so as to better protect the controller main body 25.

Specifically, the second damping assembly comprises a first upper connecting seat 3, a first lower connecting seat 5, a slide rod 8, a slide block 9, a second lower connecting seat 10, a second upper connecting seat 11, a second spring 12, an upper connecting rod 13 and a lower connecting rod 14, wherein the first upper connecting seat 3, the first lower connecting seat 5, the slide block 9, the second lower connecting seat 10, the second upper connecting seat 11, the upper connecting rod 13 and the lower connecting rod 14 are respectively arranged in two numbers, the two first upper connecting seats 3 are respectively and fixedly connected to the surfaces of the two upper pressure rods 2, the two first lower connecting seats 5 are respectively and fixedly connected to the surfaces of the two lower pressure rods 4, the slide rod 8 is fixedly connected between the two limiting sleeves 7, the two slide blocks 9 are respectively and slidably connected to the surface of the slide rod 8, the second spring 12 is fixedly connected between the two slide blocks 9, the second spring 12 is sleeved on the surface of the slide rod 8, the two second lower connecting seats 10 are respectively and fixedly connected to the lower ends of the two slide blocks 9, two second upper connecting seats 11 are respectively and fixedly connected to the upper ends of the two sliding blocks 9, one ends of the two upper connecting rods 13 are respectively and movably hinged into the two first upper connecting seats 3, the other ends of the two upper connecting rods 13 are respectively and movably hinged into the two second upper connecting seats 11, one ends of the two lower connecting rods 14 are respectively and movably hinged into the two first lower connecting seats 5, and the other ends of the two lower connecting rods 14 are respectively and movably hinged into the two second lower connecting seats 10.

In this embodiment, when the shock absorbing mechanism receives an impact force, since the forces act on each other, the upper pressure lever 2 and the lower pressure lever 4 may press the first spring 6, the first spring 6 offsets a part of the pressures of the upper pressure lever 2 and the lower pressure lever 4 by its own elastic action, the force applied to the protection box 1 is offset by the mutual cooperation of the upper pressure lever 2, the lower pressure lever 4, and the first spring 6, so as to protect the controller main body 25 from being damaged, when the upper pressure lever 2 and the lower pressure lever 4 press the first spring 6, the upper link 13 and the lower link 14 push the slider 9 to move on the surface of the slide rod 8 under the movement of the upper pressure lever 2 and the lower pressure lever 4, the movement of the slider 9 causes the second spring 12 to be compressed, and the ground force applied to the protection box 1 is offset secondarily by the mutual cooperation of the slider 9, the second spring 12, the upper link 13, and the lower link 14.

Specifically, buffer gear set up in guard box 1, and buffer gear includes installation component and buffering subassembly, and installation component and buffering subassembly all set up in guard box 1, and the buffering subassembly links to each other in order to realize the buffering with the installation component.

In this embodiment, buffer gear includes installation component and buffering subassembly, and installation component and buffering subassembly all set up in guard box 1, and the buffering subassembly links to each other in order to realize the buffering with the installation component.

Specifically, the installation component includes locating lever 22, inserted block 23 and install bin 24, and locating lever 22 and inserted block 23 all set up to four, and four locating levers 22 are fixed connection respectively in four slots 21, and four inserted blocks 23 activity respectively are pegged graft in four slots 21, and four inserted blocks 23 are sliding connection respectively in four locating lever 22's surface, and install bin 24 fixed connection is between four inserted blocks 23, and controller main part 25 installs in install bin 24.

In this embodiment, the positioning rod 22 is for positioning convenience, the insertion block 23 is for fixing the mounting box 24, and the mounting box 24 is for mounting the controller main body 25.

Specifically, the buffering assembly includes a first cover plate 26, a second cover plate 27 and third springs 28, the first cover plate 26 is located at the upper end of the installation box 24, the first cover plate 26 is slidably connected in the four slots 21, the first cover plate 26 is slidably connected on the surfaces of the four positioning rods 22, the second cover plate 27 is fixedly connected with the first cover plate 26 through the third springs 28, the second cover plate 27 is slidably connected in the four slots 21, and the second cover plate 27 is slidably connected on the surfaces of the four positioning rods 22.

In this embodiment, the cooperation of the first cover plate 26, the second cover plate 27 and the third spring 28 improves the impact resistance of the controller main body 25, and the controller main body 25 is protected to a great extent.

Specifically, heat dissipation mechanism set up in mounting hole 34, and heat dissipation mechanism includes louvre 16, mounting bracket 17, exhaust fan 18 and dust screen 19, and louvre 16 sets up to a plurality ofly, and both ends about protection case 1 are seted up respectively to a plurality of louvres 16, and mounting bracket 17 fixed connection is in mounting hole 34, and exhaust fan 18 installs on mounting bracket 17, and dust screen 19 installs in mounting hole 34.

In this embodiment, the heat dissipation holes 16 are for the convenience of heat dissipation, and the dust screen 19 is for the convenience of dust prevention, starts the exhaust fan 18, dispels the heat that the controller main part 25 produced through the exhaust fan 18, has prevented the damage that the controller main part 25 self high temperature leads to when using, and further play the protection effect to the controller main part 25.

Specifically, the protection box 1 is detachably connected with a top plate 31, the lower end of the top plate 31 is fixedly connected with four positioning blocks 32, and the four positioning blocks 32 are movably inserted into the four positioning grooves 30.

In this embodiment, the top plate 31 is for closing the protection box 1, the detachable connection is for opening the top plate 31, and the positioning block 32 and the positioning slot 30 are matched with each other to improve the connection stability between the top plate 31 and the protection box 1.

Specifically, two second handles 33 are fixedly connected to the upper end of the top plate 31, and the first handle 29 is fixedly connected to both the left and right ends of the second cover plate 27.

In this embodiment, the two second handles 33 are for facilitating the lifting of the top plate 31, the first handle 29 is for facilitating the removal of the second cover 27 from the protective case 1, and the second cover 27 is slidably engaged with the positioning rod 22.

The working principle is as follows: when the device is used, when an external force impacts downwards from the top, the impact force applied to the top plate 31 is primarily protected by the mutual cooperation of the first cover plate 26, the second cover plate 27 and the third spring 28, so as to prevent the controller main body 25 from being damaged due to the external impact force, the impact force applied to the top plate 31 is transmitted to the bottom damping mechanism through the protection box 1, when the bottom damping mechanism receives the impact force, the upper pressure rod 2 and the lower pressure rod 4 can extrude the first spring 6 due to the mutual action of the forces, the first spring 6 offsets a part of the pressure of the upper pressure rod 2 and the lower pressure rod 4 through the self elastic action, the force applied to the protection box 1 is offset by the mutual cooperation of the upper pressure rod 2, the lower pressure rod 4 and the first spring 6, so as to protect the controller main body 25 from being damaged, and when the upper pressure rod 2 and the lower pressure rod 4 extrude the first spring 6, the upper connecting rod 13 and the lower connecting rod 14 push the sliding block 9 to move on the surface of the sliding rod 8 under the movement of the upper pressure rod 2 and the lower pressure rod 4, the second spring 12 is compressed by the movement of the sliding block 9, the ground force on the protection box 1 is offset for the second time through the mutual matching of the sliding block 9, the second spring 12, the upper connecting rod 13 and the lower connecting rod 14, the controller main body 25 is protected from being damaged by direct impact force through the mutual matching of the first cover plate 26, the second cover plate 27 and the third spring 28, and the protection effect on the controller main body 25 is further improved through the twice shock absorption and buffering of the shock absorption mechanism.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the equivalent replacement or change according to the technical solution and the modified concept of the present invention should be covered by the scope of the present invention.