Safety protection device of permanent magnet speed regulator

Abstract

The utility model belongs to the technical field of permanent magnet speed regulator equipment, and particularly relates to a permanent magnet speed regulator safety protection device which comprises a speed regulator body and a protection shell and further comprises a refrigeration box fixedly installed at the lower end of the protection shell. The controller is mounted on one side of the protective shell; the heat dissipation mechanism is mounted on the protective shell and the refrigeration box; the temperature sensor is mounted on the top surface of the inner cavity of the protective shell; wherein the heat dissipation mechanism comprises a filtering part, the filtering part is arranged at the bottom of the side face of the protective shell, a ventilation part is arranged at the top of the protective shell, and a refrigeration part is installed on the refrigeration box and used for cooling air entering the protective shell. According to the utility model, the speed regulator can be ensured to operate efficiently under various temperature conditions, the damage to equipment caused by overheating is effectively prevented, and the stability and reliability of the system are remarkably improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of permanent magnet speed regulator equipment, and specifically relates to a permanent magnet speed regulator safety protection device. Background Art

[0002] Permanent magnet speed regulation (permanent magnet transmission) is an upgraded product of eddy current permanent magnet coupling transmission. It has the characteristics of simple structure, reliable operation, energy saving and consumption reduction, and is well applied in modern industry. It is mainly used in energy saving of motor traction systems in industries such as petroleum, petrochemical, electric power, mining, steel, chemical, cement, etc.

[0003] A permanent magnet speed regulator will generate a lot of heat when running at high speed for a long time. If the heat cannot be discharged, it will cause heat accumulation, which will have a certain impact on the operation of the equipment. In the prior art, in order to improve the heat dissipation effect of the permanent magnet speed regulator, a heat dissipation component is generally arranged on the external shell to improve the heat dissipation effect. For example, the application number is: CN202320986650.2, a high heat dissipation permanent magnet speed regulator. The speed regulator connects the motor to the input end, and then connects the machine to the output end, and then drives the permanent magnet speed regulator to work. Heat is generated in this process, and then the duct fan is turned on to guide the heat inside the device box from the outlet pipe, and the polluted dust in the air is filtered through the filter. A number of heat dissipation holes are arranged on the side wall of the device box to accelerate the internal heat conduction, so as to achieve sufficient heat dissipation and improve the working efficiency of the permanent magnet speed regulator.

[0004] However, in actual applications, although the heat dissipation holes are set on the side wall of the device box to achieve the purpose of heat dissipation, this design also brings a series of problems. Specifically, the open slots on the shell of the permanent magnet speed regulator for heat dissipation make it easy for external dust and debris to invade the interior of the device box. This invasion not only accelerates the aging process of the permanent magnet speed regulator and increases energy consumption, but is also more likely to cause serious damage to the permanent magnet speed regulator due to the entry of debris. In addition, due to the existence of the output shaft of the permanent magnet speed regulator, the operation of installing and removing the permanent magnet speed regulator from the device box for maintenance is relatively cumbersome, which brings inconvenience. Utility Model Content

[0005] The purpose of this utility model is to provide a permanent magnet speed regulator safety protection device, which can ensure that the speed regulator can maintain efficient operation under various temperature conditions, effectively prevent damage to the equipment caused by overheating, and significantly improve the stability and reliability of the system.

[0006] The technical solutions adopted in this utility are as follows:

[0007] A permanent magnet speed regulator safety protection device comprises a speed regulator body and a protection shell, and also comprises:

[0008] A refrigeration box, the refrigeration box is fixedly mounted at the lower end of the protective shell;

[0009] A controller, wherein the controller is installed on one side of the protective shell;

[0010] A heat dissipation mechanism, wherein the heat dissipation mechanism is installed on the protective shell and the refrigeration box;

[0011] A temperature sensor is installed on the top surface of the inner cavity of the protective shell and is used to detect the temperature inside the protective shell in real time;

[0012] Among them, the heat dissipation mechanism includes a filter part, which is arranged at the bottom of the side of the protective shell and is used to filter the air entering the protective shell. The top of the protective shell is provided with a ventilation part, which is used to speed up the air circulation speed inside the protective shell. The refrigeration box is equipped with a refrigeration part for cooling the air entering the protective shell.

[0013] In a preferred embodiment, the protective shell includes an upper shell and a lower shell, and the upper shell and the lower shell are detachably connected by bolts.

[0014] In a preferred embodiment, the filter part includes an air inlet hood, which is arranged on the side of the lower shell body, and a baffle is slidably connected to the air inlet hood. Electric push rods are also installed at both ends of the air inlet hood, and the telescopic ends of the electric push rods are connected to the top of the baffle. The inner wall of the air inlet hood is fixedly connected with a filter net, and bristles are arranged on the bottom of one side of the baffle close to the filter net.

[0015] In a preferred embodiment, the ventilation part includes a ventilation hood, which is connected to the upper end of the upper shell, and an exhaust fan is fixedly installed inside the ventilation hood, wherein a ventilation slot is opened on the ventilation hood, and a dustproof net is arranged in the ventilation slot.

[0016] In a preferred embodiment, the refrigeration unit includes a refrigeration pipe, which is arranged in an air inlet hood. A water pump is installed on the front of the refrigeration box. The water pumping end of the water pump is connected to a water pumping pipe, and the other end of the water pumping pipe is connected to the refrigeration box. The discharge end of the water pump is connected to two diversion pipes through a tee, and the other end of the diversion pipe is connected to the water inlet end of the refrigeration pipe. The back of the refrigeration box is connected to two return pipes through a tee, and the other end of the return pipe is connected to the water outlet end of the refrigeration pipe.

[0017] In a preferred embodiment, a cavity is formed on the protective shell, and the cavity is filled with sound insulation cotton.

[0018] The technical effects achieved by this utility model are:

[0019] This utility model has an efficient and multi-level temperature regulation and heat dissipation mechanism by setting up a heat dissipation mechanism. The temperature inside the protective shell is monitored in real time by a temperature sensor, and corresponding heat dissipation measures are taken according to different temperature ranges. From simply opening the air inlet hood for natural ventilation and heat dissipation, to starting the exhaust fan to increase the heat dissipation efficiency, to using a refrigeration box and coolant for forced cooling, these measures ensure that the speed regulator can maintain efficient operation under various temperature conditions, effectively prevent damage to the equipment caused by overheating, and significantly improve the stability and reliability of the system;

[0020] The upper shell and the lower shell of the utility model are fastened together by bolts. When the speed regulator body needs to be inspected or maintained, the upper shell and the lower shell can be separated by simply loosening and removing the bolts, thereby greatly improving the convenience of the speed regulator body during inspection and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the protective shell of the utility model;

[0023] Figure 3 It is a partial cross-sectional view of the upper shell of the utility model;

[0024] Figure 4 It is a side sectional view of the upper shell of the utility model;

[0025] Figure 5 It is a front cross-sectional view of the air inlet cover of the utility model;

[0026] Figure 6 It is a side sectional view of the air inlet cover of the utility model;

[0027] Figure 7 This is a structural cross-sectional view of the protective shell of the utility model.

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 1. Speed ​​regulator body; 2. Protective shell; 3. Refrigeration box; 4. Controller; 5. Heat dissipation mechanism; 6. Temperature sensor;

[0030] 21. upper shell; 22. lower shell;

[0031] 51. Filter unit; 52. Ventilation unit; 53. Refrigeration unit;

[0032] 511, air inlet cover; 512, baffle; 513, electric push rod; 514, filter; 515, brush;

[0033] 521, ventilation hood; 522, exhaust fan;

[0034] 531, refrigeration pipe; 532, water pump; 533, suction pipe; 534, diversion pipe; 535, return pipe. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0036] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention, so the present invention is not limited to the specific embodiments disclosed below.

[0037] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present utility. The phrase "in a preferred embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0038] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the present embodiment in detail, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general scale, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0039] Please refer to the attached Figure 1-Figure 7 As shown, the present invention provides a permanent magnet speed regulator safety protection device, including:

[0040] The speed regulator body 1 and the protective shell 2, the protective shell 2 is provided with a cavity, and the cavity is filled with sound insulation cotton, and also includes:

[0041] A refrigeration box 3, which is fixedly mounted at the lower end of the protective shell 2;

[0042] A controller 4, which is installed on one side of the protective shell 2;

[0043] The heat dissipation mechanism 5 is installed on the protective shell 2 and the refrigeration box 3;

[0044] The temperature sensor 6 is installed on the top surface of the inner cavity of the protective shell 2 and is used to detect the temperature inside the protective shell 2 in real time;

[0045] Among them, the heat dissipation mechanism 5 includes a filter part 51, which is arranged at the bottom of the side of the protective shell 2 and is used to filter the air entering the protective shell 2. A ventilation part 52 is arranged on the top of the protective shell 2 to speed up the air circulation inside the protective shell 2. A refrigeration part 53 is installed on the refrigeration box 3 to cool the air entering the protective shell 2.

[0046] In this embodiment, the design of the speed regulator body 1 and the protective shell 2 takes into account the overheating problem that may occur during long-term operation. In order to ensure that the speed regulator can work continuously and stably, heat dissipation and cooling measures are further added.

[0047] In order to enhance the heat dissipation effect, the filter part 51 at the bottom of the side of the protective shell 2 adopts a filter structure, which can effectively prevent dust and impurities from entering the interior of the protective shell 2 and ensure the cleanliness of the internal environment. The ventilation part 52 at the top adopts a large-area mesh structure, which increases the channel and speed of air circulation, so that the hot air inside the protective shell 2 can be quickly discharged.

[0048] In addition to the above-mentioned heat dissipation and refrigeration measures, the temperature sensor 6 can detect the temperature inside the protective shell 2 in real time and feed the data back to the controller 4. The controller 4 adjusts the working state of the refrigeration unit 53 according to the received temperature data to achieve the best heat dissipation effect.

[0049] In addition, in order to improve the service life and stability of the speed regulator body 1, the material and structure of the protective shell 2 are optimized. The protective shell 2 is made of high-strength, high-temperature resistant alloy material, and the surface is sprayed with an anti-corrosion coating, which can effectively resist erosion in harsh environments. At the same time, a cavity is opened inside the protective shell 2, and the cavity is filled with sound insulation cotton, which can minimize the accumulation and transfer of heat and reduce the spread of noise.

[0050] It should be noted that the refrigeration box 3 can refrigerate the internal coolant and adopts products currently available on the market. When selecting the model, it should be selected as much as possible to meet the requirements of this application under the premise of suitable specifications and usage scenarios. The specific model specifications are not limited here.

[0051] In a preferred embodiment, please refer to Figure 2 The protective shell 2 includes an upper shell 21 and a lower shell 22, and the upper shell 21 and the lower shell 22 are detachably connected by bolts.

[0052] In this embodiment, the upper housing 21 and the lower housing 22 are fastened together by bolts. When the speed regulator body 1 needs to be inspected or maintained, the upper housing 21 and the lower housing 22 can be separated by simply loosening and removing the bolts, thereby greatly improving the convenience of the speed regulator body 1 during inspection and maintenance.

[0053] Next, please refer to Figure 2 , Figure 5 and Figure 6 The filter part 51 includes an air inlet cover 511, which is arranged on the side of the lower shell body 22. A baffle 512 is slidably connected to the air inlet cover 511. Electric push rods 513 are also installed at both ends of the air inlet cover 511, and the telescopic end of the electric push rod 513 is connected to the top of the baffle 512. A filter screen 514 is fixedly connected to the inner wall of the air inlet cover 511, and a brush 515 is arranged on the bottom of one side of the baffle 512 close to the filter screen 514.

[0054] In this embodiment, when the temperature inside the protective shell 2 reaches a preset low interval value, the controller 4 will start the electric push rod 513, so that it drives the baffle 512 to move upward, thereby opening the opening of the air inlet cover 511, allowing the outside air to enter the protective shell 2 through the air inlet cover 511, so as to achieve air circulation and heat dissipation inside and outside the protective shell 2. In this process, the filter 514 provided in the air inlet cover 511 can effectively filter the particulate impurities in the air to ensure that the incoming air is clean. At the same time, when the electric push rod 513 is in the process of lifting and lowering the baffle 512, the bristles 515 equipped on the side of the baffle 512 will move along the side of the filter 514 to remove the particulate impurities adhered to the filter 514, maintain its cleanliness, and ensure the ventilation effect. When heat dissipation is not required, the baffle 512 will tightly close the opening of the air inlet cover 511, effectively preventing the ground moisture from entering the protective shell 2 through the air inlet cover 511, thereby avoiding the erosion of the internal parts of the protective shell 2 by moisture.

[0055] Secondly, please also refer to Figure 3 and Figure 4 The ventilation part 52 includes a ventilation cover 521, which is connected to the upper end of the upper shell 21. An exhaust fan 522 is fixedly installed inside the ventilation cover 521, wherein a ventilation slot is opened on the ventilation cover 521, and a dustproof net is arranged in the ventilation slot.

[0056] In this embodiment, when the temperature inside the protective shell 2 reaches a preset middle range value, the controller 4 will start the exhaust fan 522 and use the exhaust fan 522 to discharge the hot air in the protective shell 2. At this time, the outside air can quickly enter the protective shell 2 through the air inlet cover 511, which significantly improves the heat dissipation efficiency.

[0057] In a preferred embodiment, please refer to Figure 2 and Figure 6The refrigeration unit 53 includes a refrigeration pipe 531, which is arranged in the air inlet cover 511. A water pump 532 is installed on the front of the refrigeration box 3. The water pumping end of the water pump 532 is connected to the water pumping pipe 533, and the other end of the water pumping pipe 533 is connected to the refrigeration box 3. The drainage end of the water pump 532 is connected to two shunt pipes 534 through a tee, and the other end of the shunt pipe 534 is connected to the water inlet end of the refrigeration pipe 531. The back of the refrigeration box 3 is connected to two return pipes 535 through a tee, and the other end of the return pipe 535 is connected to the water outlet end of the refrigeration pipe 531.

[0058] In this embodiment, if the temperature inside the protective shell 2 further rises to a preset high range value, the controller 4 will first start the refrigeration box 3 to cool the internal coolant, and then start the water pump 532 to extract the coolant in the refrigeration box 3 through the pumping pipe 533, and inject it into the refrigeration pipe 531 through the shunt pipe 534. When the outside air enters the protective shell 2 through the air inlet cover 511, it will exchange heat with the coolant in the refrigeration pipe 531, thereby achieving air cooling. The cooled air enters the protective shell 2, cools the internal components, and greatly improves the heat dissipation effect. The coolant passing through the refrigeration pipe 531 will flow back to the refrigeration box 3 along the return pipe 535 for further cooling, and this cycle is repeated to ensure that the coolant is always in a cooling state, thereby maintaining a continuous cooling effect on the air.

[0059] The working principle of this utility is:

[0060] During the operation of the speed regulator body 1 , the temperature sensor 6 is responsible for real-time monitoring of the temperature inside the protective shell 2 and accurately transmitting the detected data to the controller 4 .

[0061] When the temperature inside the protective shell 2 reaches the preset low interval value, the controller 4 will start the electric push rod 513, so that it drives the baffle 512 to move upward, and then open the opening of the air inlet cover 511, allowing the outside air to enter the protective shell 2 through the air inlet cover 511, so as to realize the air circulation and heat dissipation inside and outside the protective shell 2. In this process, the filter 514 provided in the air inlet cover 511 can effectively filter the particulate impurities in the air to ensure the cleanliness of the incoming air. At the same time, when the electric push rod 513 is in the process of lifting and lowering the baffle 512, the bristles 515 equipped on the side of the baffle 512 will move along the side of the filter 514 to remove the particulate impurities adhered to the filter 514, maintain its cleanliness, and ensure the ventilation effect. When heat dissipation is not required, the baffle 512 will tightly close the opening of the air inlet cover 511, effectively preventing the moisture from the ground from entering the protective shell 2 through the air inlet cover 511, thereby avoiding the erosion of the internal parts of the protective shell 2 by moisture.

[0062] When the temperature inside the protective shell 2 reaches a preset middle range value, the controller 4 will start the exhaust fan 522 to exhaust the hot air in the protective shell 2. At this time, the outside air can quickly enter the protective shell 2 through the air inlet cover 511, which significantly improves the heat dissipation efficiency.

[0063] If the temperature inside the protective shell 2 further rises to a preset high range value, the controller 4 will first start the refrigeration box 3 to cool the internal coolant, and then start the water pump 532 to extract the coolant in the refrigeration box 3 through the pumping pipe 533, and inject it into the refrigeration pipe 531 through the diverter pipe 534. When the outside air enters the protective shell 2 through the air inlet hood 511, it will exchange heat with the coolant in the refrigeration pipe 531, thereby achieving air cooling. The cooled air enters the protective shell 2, cools the internal components, and greatly improves the heat dissipation effect. The coolant passing through the refrigeration pipe 531 will flow back to the refrigeration box 3 along the return pipe 535 for further cooling, and this cycle is repeated to ensure that the coolant is always in a cooling state, thereby maintaining a continuous cooling effect on the air.

[0064] The upper housing 21 and the lower housing 22 are fastened together by bolts. When the speed regulator body 1 needs to be inspected or maintained, the upper housing 21 and the lower housing 22 can be separated by simply loosening and removing the bolts, thereby greatly improving the convenience of the speed regulator body 1 during inspection and maintenance.

[0065] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A permanent magnet speed regulator safety protection device, comprising a speed regulator body (1) and a protective shell (2), characterized in that: Also includes: A refrigeration box (3), wherein the refrigeration box (3) is fixedly mounted on the lower end of the protective shell (2); A controller (4), wherein the controller (4) is mounted on one side of the protective shell (2); A heat dissipation mechanism (5), wherein the heat dissipation mechanism (5) is installed on the protective shell (2) and the refrigeration box (3); A temperature sensor (6), the temperature sensor (6) being mounted on the top surface of the inner cavity of the protective shell (2) and being used to detect the temperature inside the protective shell (2) in real time; The heat dissipation mechanism (5) comprises a filter portion (51), the filter portion (51) being arranged at the bottom of the side of the protective shell (2) and being used for filtering the air entering the protective shell (2); the top of the protective shell (2) is provided with a ventilation portion (52) for accelerating the speed of air circulation inside the protective shell (2); and the refrigeration box (3) is provided with a refrigeration portion (53) for cooling the air entering the protective shell (2).

2. A permanent magnet speed regulator safety protection device according to claim 1, characterized in that: The protective shell (2) comprises an upper shell (21) and a lower shell (22), and the upper shell (21) and the lower shell (22) are detachably connected by bolts.

3. A permanent magnet speed regulator safety protection device according to claim 2, characterized in that: The filter portion (51) comprises an air inlet cover (511), the air inlet cover (511) being arranged on the side of the lower shell (22), a baffle (512) being slidably connected to the air inlet cover (511), electric push rods (513) being installed at both ends of the air inlet cover (511), and the telescopic end of the electric push rod (513) being connected to the top of the baffle (512), a filter screen (514) being fixedly connected to the inner wall of the air inlet cover (511), and bristles (515) being arranged at the bottom of one side of the baffle (512) close to the filter screen (514).

4. A permanent magnet speed regulator safety protection device according to claim 2, characterized in that: The ventilation part (52) comprises a ventilation hood (521), the ventilation hood (521) is connected to the upper end of the upper shell (21), an exhaust fan (522) is fixedly installed inside the ventilation hood (521), wherein a ventilation slot is opened on the ventilation hood (521), and a dustproof net is arranged in the ventilation slot.

5. A permanent magnet speed regulator safety protection device according to claim 3, characterized in that: The refrigeration part (53) comprises a refrigeration pipe (531), wherein the refrigeration pipe (531) is arranged in the air inlet cover (511); a water pump (532) is installed on the front of the refrigeration box (3); a water pumping end of the water pump (532) is connected to a water pumping pipe (533), and the other end of the water pumping pipe (533) is communicated with the refrigeration box (3); a water discharge end of the water pump (532) is connected to two shunt pipes (534) via a tee, and the other end of the shunt pipe (534) is connected to the water inlet end of the refrigeration pipe (531); and the back of the refrigeration box (3) is connected to two return pipes (535) via a tee, and the other end of the return pipe (535) is connected to the water outlet end of the refrigeration pipe (531).

6. A permanent magnet speed regulator safety protection device according to claim 1, characterized in that: The protective shell (2) is provided with a cavity, and the cavity is filled with sound insulation cotton.

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