Harmonic source treatment device for industrial equipment

Abstract

The utility model discloses a harmonic source treatment device for industrial equipment, which comprises an outer cabinet body and a cabinet door, a heat dissipation inner shell is fixedly arranged in the outer cabinet body, and a hot air exhaust cavity is arranged between the upper end surface of the heat dissipation inner shell and the upper inner wall surface of the outer cabinet body; a left moisture-proof heat dissipation cavity is arranged between the left end surface of the heat dissipation inner shell and the left inner wall surface of the outer cabinet body; a right moisture-proof heat dissipation cavity is arranged between the right end surface of the heat dissipation inner shell and the right inner wall surface of the outer cabinet body; an air filtering cavity is formed between the lower end surface of the heat dissipation inner shell and the inner bottom surface of the outer cabinet body; a heat dissipation aluminum plate is fixedly arranged on the insulating supporting column on the rear inner wall face of the heat dissipation inner shell, and a heat conduction silica gel layer is arranged between the rear end face of the heat dissipation aluminum plate and the rear inner wall face of the heat dissipation inner shell. A collector, a harmonic current generator, a voltage stabilizer and a controller are fixedly arranged on the heat dissipation aluminum plate, and an air filter element is detachably arranged at a lower port of the air inlet through hole of the heat dissipation inner shell. According to the technical scheme, the structure design is reasonable, the damp-proof effect is good, safety and reliability are achieved, and heat dissipation performance and practicability are good.

Description

Technical Field

[0001] The utility model relates to the technical field of harmonic control devices, in particular to a harmonic source control device for industrial equipment. Background Art

[0002] Types of equipment that generate harmonics include: switch mode power supplies, electronic fluorescent lamp ballasts, inverters, uninterruptible power supplies, magnetic core equipment, and various industrial equipment.

[0003] There are still some deficiencies in the structure of the existing harmonic control device: the cabinet of the existing harmonic control device structure is generally a single-layer structure. When encountering heavy rain, the air in the cabinet will form moisture due to the temperature difference, making it easy for water droplets to condense on the inner surface of the cabinet, causing the electrical components inside the cabinet to be affected, posing a safety hazard of leakage; moreover, the cabinet of the harmonic control device contains a large number of electrical components. During peak operating hours, a large amount of heat is easily generated. If this heat is not discharged in time, it will cause damage to the electrical components in the capacitor cabinet and shorten the service life of the electrical components; the cabinet of the existing harmonic control device is provided with heat dissipation grooves and heat dissipation holes for heat dissipation, so that the air in the cabinet can circulate and exchange with the air outside the cabinet to achieve heat transfer, but in the process of heat exchange, external dust is easy to enter the cabinet, which needs to be improved. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an industrial equipment harmonic source control device with reasonable structural design, good moisture-proof effect, safety and reliability, good heat dissipation performance and good practicality.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an industrial equipment harmonic source control device, comprising an outer cabinet and a cabinet door, wherein the left end of the cabinet door is hinged to the left end of the outer cabinet, a heat dissipation inner shell is fixedly arranged in the outer cabinet, a heat exhaust air cavity is arranged between the upper end surface of the heat dissipation inner shell and the upper inner wall surface of the outer cabinet; a left moisture-proof heat dissipation cavity is arranged between the left end surface of the heat dissipation inner shell and the left inner wall surface of the outer cabinet; a right moisture-proof heat dissipation cavity is arranged between the right end surface of the heat dissipation inner shell and the right inner wall surface of the outer cabinet; an air filter cavity is arranged between the lower end surface of the heat dissipation inner shell and the inner bottom surface of the outer cabinet;

[0006] A plurality of insulating pillars are fixedly arranged on the rear inner wall surface of the heat dissipation inner shell, a heat dissipation aluminum plate is fixedly arranged on the insulating pillar, and a heat-conducting silicone layer is arranged between the rear end surface of the heat dissipation aluminum plate and the rear inner wall surface of the heat dissipation inner shell;

[0007] The heat dissipation aluminum plate is fixedly provided with a collector, a harmonic current generator, a voltage stabilizer and a controller, the collector is electrically connected to the harmonic current generator, the harmonic current generator is electrically connected to the voltage stabilizer, and the controller is electrically connected to the collector and the harmonic current generator respectively;

[0008] An air inlet through hole is arranged on the lower end surface of the heat dissipation inner shell, and a positioning bracket is arranged at the lower port of the air inlet through hole. An air filter element is detachably arranged on the positioning bracket. The air filter element includes a filter element frame, and an annular groove is arranged in the filter element frame. A coarse filter screen, a silica gel drying layer, an activated carbon filter layer and a fine filter screen are arranged in sequence from bottom to top in the annular groove.

[0009] The utility model is further configured as follows: an air outlet through hole and a threading through hole are provided on the upper end surface of the heat dissipation inner shell, the air outlet through hole is connected to the heat exhaust air cavity, an air exhaust through hole is provided on the upper end of the right end surface of the outer cabinet, the air exhaust through hole is connected to the heat exhaust air cavity, and a first insect-proof net is fixedly provided in the air exhaust through hole;

[0010] An exhaust fan is arranged at the upper port of the air outlet through hole, the inlet of the exhaust fan is arranged to align with the upper port of the air outlet through hole, and the outlet of the exhaust fan is arranged toward the exhaust through hole.

[0011] The utility model is further configured as follows: a temperature and humidity sensor is fixedly arranged on the heat dissipation aluminum plate, a first connecting wire is arranged in the wire threading through hole, the upper end of the first connecting wire is electrically connected to the exhaust fan, and the lower end of the first connecting wire is electrically connected to the temperature and humidity sensor.

[0012] The utility model is further configured as follows: the heat dissipation inner shell is made of aluminum or copper, and has a rectangular structure, and the heat dissipation inner shell is integrally arranged with the inner wall surface of the outer cabinet or fixed by screws.

[0013] The utility model is further configured as follows: a ventilation hole is arranged at the lower end of the right end surface of the outer cabinet, the ventilation hole is communicated with the air filter cavity, and a second insect-proof net is fixedly arranged in the ventilation hole.

[0014] The utility model is further configured as follows: a positioning bracket is arranged at the bottom of the outer cabinet, and a plurality of supporting feet are integrally arranged at the lower end of the positioning bracket.

[0015] The beneficial effects of the utility model are as follows: compared with the prior art, the utility model has a reasonable structural design, the heat generated by the collector, the harmonic current generator, the voltage stabilizer and the controller is quickly dissipated through the heat dissipation aluminum plate, and while dissipating the heat, the heat on the heat dissipation aluminum plate is quickly conducted to the rear inner wall surface of the heat dissipation inner shell through the heat conductive silicone layer, so that the entire heat dissipation inner shell can dissipate heat, the heat dissipation area is large, and the heat dissipation effect is good;

[0016] When the temperature and humidity sensor detects that the air humidity or temperature is higher than the set value, the temperature and humidity sensor will transmit a signal to the exhaust fan to turn on the exhaust fan, accelerate the air flow in the heat dissipation inner shell, and extract the hot air in the heat dissipation inner shell. The hot air passes through the exhaust air cavity and is discharged from the exhaust hole;

[0017] When the temperature and humidity sensor detects that the air humidity or temperature is lower than the set value, the temperature and humidity sensor will transmit a signal to the exhaust fan to shut down the exhaust fan, thereby saving energy and reducing consumption;

[0018] The air filter element at the lower port of the air inlet through hole of the heat dissipation inner shell of the utility model can effectively prevent dust and water vapor from entering at the same time, has good moisture-proof effect, makes the temperature and humidity in the heat dissipation inner shell more suitable for the operation of electrical components, is safe and reliable, can prolong the service life of the harmonic source control device of the entire industrial equipment, and has good practicality.

[0019] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0021] Figure 2 It is a partial structural schematic diagram of an embodiment of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the air filter element of the utility model embodiment;

[0023] Figure 4 for Figure 3 Enlarged schematic diagram of part I in the middle. DETAILED DESCRIPTION

[0024] In the description of this embodiment, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore, cannot be understood as a limitation on the utility model. In addition, if the terms "first", "second", and "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] See also Figures 1 to 4The utility model discloses an industrial equipment harmonic source control device, comprising an outer cabinet 1 and a cabinet door 2, wherein the left end of the cabinet door 2 is hinged to the left end of the outer cabinet 1, and a heat dissipation inner shell 3 is fixedly arranged in the outer cabinet 1, and a heat exhaust air cavity 11 is arranged between the upper end surface of the heat dissipation inner shell 3 and the upper inner wall surface of the outer cabinet 1; a left moisture-proof heat dissipation cavity 12 is arranged between the left end surface of the heat dissipation inner shell 3 and the left inner wall surface of the outer cabinet 1; a right moisture-proof heat dissipation cavity 13 is arranged between the right end surface of the heat dissipation inner shell 3 and the right inner wall surface of the outer cabinet 1; an air filter cavity 14 is arranged between the lower end surface of the heat dissipation inner shell 3 and the inner bottom surface of the outer cabinet 1;

[0026] A plurality of insulating pillars 4 are fixedly arranged on the rear inner wall surface of the heat dissipation inner shell 3, a heat dissipation aluminum plate 5 is fixedly arranged on the insulating pillar 4, and a heat conductive silicone layer 6 is arranged between the rear end surface of the heat dissipation aluminum plate 5 and the rear inner wall surface of the heat dissipation inner shell 3;

[0027] The heat dissipation aluminum plate 5 is fixedly provided with a collector 7, a harmonic current generator 8, a voltage stabilizer 9 and a controller 10, the collector 7 is electrically connected to the harmonic current generator 8, the harmonic current generator 8 is electrically connected to the voltage stabilizer 9, and the controller 10 is electrically connected to the collector 7 and the harmonic current generator 8 respectively;

[0028] An air inlet hole 31 is arranged on the lower end surface of the heat dissipation inner shell 3, and a positioning bracket 32 ​​is arranged at the lower port of the air inlet hole 31. An air filter element 15 is detachably arranged on the positioning bracket 32. The air filter element 15 includes a filter element frame 151, and an annular groove is arranged in the filter element frame 151. A coarse filter screen 152, a silica gel drying layer 153, an activated carbon filter layer 154 and a fine filter screen 155 are arranged in sequence from bottom to top in the annular groove.

[0029] Preferably, the left end of the cabinet door 2 is hinged to the left end of the outer cabinet body 1 by a pin or a hinge; the number of the insulating pillars 4 is more than 4, and the insulating pillars 4 are distributed in a rectangular shape, each insulating pillar 4 is made of plastic, and each insulating pillar 4 is fixed to the rear inner wall of the heat dissipation inner shell 3 by nail-free glue bonding or screw connection; the front end face of the thermal conductive silicone layer 6 is fixed to the rear end face of the heat dissipation aluminum plate 5 by glue bonding; the rear end face of the thermal conductive silicone layer 6 is fixed to the rear inner wall of the heat dissipation inner shell 3 by glue bonding; the collector 7, harmonic current generator 8, voltage stabilizer 9 and controller 10 are all connected and fixed to the heat dissipation aluminum plate 5 by bolts; the positioning bracket 32 ​​is integrally arranged with the lower end face of the heat dissipation inner shell 3; the air filter element 15 is fixed to the positioning bracket 32 ​​by snap-fitting or connected and fixed by bolts; the coarse filter 152, silica gel drying layer 153, activated carbon filter layer 154 and fine filter 155 are bonded and composited to form an integrated structure.

[0030] The harmonic current generator 8 includes a three-phase voltage source inverter and a commutation reactor filter. The commutation reactor filter is a combination of a three-phase LCL filter and a commutation reactor, which can eliminate the harmonic voltage of the power grid and compensate for the sudden rise or drop of the fundamental voltage.

[0031] The model of the controller 10 is 80C51.

[0032] In order to make the structural design of the utility model more reasonable, as a preferred embodiment, the upper end surface of the heat dissipation inner shell 3 of the present embodiment is provided with an air outlet hole 33 and a threading hole 34, the air outlet hole 33 is connected with the heat exhaust air cavity 11, and the upper end of the right end surface of the outer cabinet 1 is provided with an air exhaust hole 16, the air exhaust hole 16 is connected with the heat exhaust air cavity 11, and a first insect-proof net 17 is fixedly provided in the air exhaust hole 16;

[0033] The upper end of the air outlet hole 33 is provided with an exhaust fan 18, the inlet of the exhaust fan 18 is aligned with the upper end of the air outlet hole 33, and the outlet of the exhaust fan 18 is arranged toward the exhaust hole 16. Preferably, the exhaust fan 18 is fixed to the upper end surface of the heat dissipation inner shell 3 by bolts. The first insect-proof net 17 is fixed to the inner wall surface of the exhaust hole 16 by nail-free adhesive.

[0034] A temperature and humidity sensor 19 is fixedly mounted on the heat dissipation aluminum plate 5 , a first connecting wire 20 is disposed in the wire threading through hole 34 , an upper end of the first connecting wire 20 is electrically connected to the exhaust fan 18 , and a lower end of the first connecting wire 20 is electrically connected to the temperature and humidity sensor 19 .

[0035] The heat dissipation inner shell 3 is made of aluminum or copper and has a rectangular structure. The heat dissipation inner shell 3 is integrally arranged with the inner wall surface of the outer cabinet 1 or fixed by screws.

[0036] The lower end of the right end surface of the outer cabinet 1 is provided with a ventilation hole 110, the ventilation hole 110 is connected to the air filter chamber 14, and a second insect-proof net 21 is fixedly provided in the ventilation hole 110. Preferably, the second insect-proof net 21 is fixed to the inner wall surface of the ventilation hole 110 by nail-free adhesive.

[0037] The bottom of the outer cabinet 1 is provided with a positioning bracket 22, and the lower end of the positioning bracket 22 is integrally provided with a plurality of supporting feet 23. Preferably, the positioning bracket 22 is fixed to the bottom of the outer cabinet 1 by bolts, and the number of the supporting feet 23 is 4, and the supporting feet 23 are distributed in a rectangular shape.

[0038] In actual application, the heat generated by the collector 7, harmonic current generator 8, voltage stabilizer 9 and controller 10 is quickly dissipated through the heat dissipation aluminum plate 5, and while dissipating the heat, the heat on the heat dissipation aluminum plate 5 is quickly conducted to the rear inner wall surface of the heat dissipation inner shell 3 through the thermal conductive silicone layer 6, so that the entire heat dissipation inner shell 3 can dissipate heat, the heat dissipation area is large, and the heat dissipation effect is good;

[0039] When the temperature and humidity sensor 19 detects that the air humidity or temperature is higher than the set value, the temperature and humidity sensor 19 transmits a signal to the exhaust fan 18, so that the exhaust fan 18 is turned on, the air flow in the heat dissipation inner shell 3 is accelerated, and the hot air in the heat dissipation inner shell 3 is extracted, and the hot air is discharged from the exhaust hole 16 after passing through the exhaust air cavity 11;

[0040] When the temperature and humidity sensor 19 detects that the air humidity or temperature is lower than the set value, the temperature and humidity sensor 19 will transmit a signal to the exhaust fan 18 to shut down the exhaust fan 18, thereby achieving the effect of energy saving and consumption reduction;

[0041] The air filter 15 at the lower port of the air inlet through hole 31 of the heat dissipation inner shell 3 of the utility model can effectively prevent dust and moisture from entering at the same time, and has good moisture-proof effect, so that the temperature and humidity in the heat dissipation inner shell 3 are more suitable for the operation of electrical components, which is safe and reliable, can increase the service life of the harmonic source control device of the entire industrial equipment, and has good practicality.

[0042] The specific description of the present invention in the above embodiments is only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Technical engineers in this field may make some non-essential improvements and adjustments to the present invention based on the contents of the above-mentioned utility model, which fall within the scope of protection of the present invention.

Claims

1. A harmonic source control device for industrial equipment, comprising an outer cabinet (1) and a cabinet door (2), wherein the left end of the cabinet door (2) is hinged to the left end of the outer cabinet (1), characterized in that: A heat dissipation inner shell (3) is fixedly arranged inside the outer cabinet (1); a heat exhaust air cavity (11) is arranged between the upper end surface of the heat dissipation inner shell (3) and the upper inner wall surface of the outer cabinet (1); a left moisture-proof heat dissipation cavity (12) is arranged between the left end surface of the heat dissipation inner shell (3) and the left inner wall surface of the outer cabinet (1); a right moisture-proof heat dissipation cavity (13) is arranged between the right end surface of the heat dissipation inner shell (3) and the right inner wall surface of the outer cabinet (1); an air filter cavity (14) is arranged between the lower end surface of the heat dissipation inner shell (3) and the inner bottom surface of the outer cabinet (1); A plurality of insulating pillars (4) are fixedly arranged on the rear inner wall surface of the heat dissipation inner shell (3), a heat dissipation aluminum plate (5) is fixedly arranged on the insulating pillar (4), and a heat-conducting silicone layer (6) is arranged between the rear end surface of the heat dissipation aluminum plate (5) and the rear inner wall surface of the heat dissipation inner shell (3); A collector (7), a harmonic current generator (8), a voltage stabilizer (9) and a controller (10) are fixedly arranged on the heat dissipation aluminum plate (5); the collector (7) is electrically connected to the harmonic current generator (8); the harmonic current generator (8) is electrically connected to the voltage stabilizer (9); and the controller (10) is electrically connected to the collector (7) and the harmonic current generator (8) respectively; An air inlet hole (31) is arranged on the lower end surface of the heat dissipation inner shell (3), a positioning bracket (32) is arranged at the lower end of the air inlet hole (31), an air filter element (15) is detachably arranged on the positioning bracket (32), the air filter element (15) comprises a filter element frame (151), an annular groove is arranged in the filter element frame (151), and a coarse filter screen (152), a silica gel drying layer (153), an activated carbon filter layer (154) and a fine filter screen (155) are arranged in sequence from bottom to top in the annular groove.

2. The device for controlling harmonic sources of industrial equipment according to claim 1, characterized in that: An air outlet hole (33) and a threading hole (34) are provided on the upper end surface of the heat dissipation inner shell (3), and the air outlet hole (33) is connected to the heat exhaust air cavity (11); an air exhaust hole (16) is provided on the upper end of the right end surface of the outer cabinet (1), and the air exhaust hole (16) is connected to the heat exhaust air cavity (11); a first insect-proof net (17) is fixedly provided in the air exhaust hole (16); An exhaust fan (18) is disposed at the upper end of the air outlet through hole (33), the inlet of the exhaust fan (18) is arranged to align with the upper end of the air outlet through hole (33), and the outlet of the exhaust fan (18) is arranged toward the exhaust through hole (16).

3. The device for controlling harmonic sources of industrial equipment according to claim 2, characterized in that: A temperature and humidity sensor (19) is fixedly arranged on the heat dissipation aluminum plate (5), and a first connecting wire (20) is arranged in the wire threading through hole (34). The upper end of the first connecting wire (20) is electrically connected to the exhaust fan (18), and the lower end of the first connecting wire (20) is electrically connected to the temperature and humidity sensor (19).

4. The device for controlling harmonic sources of industrial equipment according to claim 3, characterized in that: The heat dissipation inner shell (3) is made of aluminum or copper, and has a rectangular structure. The heat dissipation inner shell (3) is integrally arranged with the inner wall surface of the outer cabinet (1) or is fixed by screw connection.

5. The device for controlling harmonic sources of industrial equipment according to claim 4, characterized in that: A ventilation hole (110) is provided at the lower end of the right end surface of the outer cabinet (1), the ventilation hole (110) is communicated with the air filter chamber (14), and a second insect-proof net (21) is fixedly provided in the ventilation hole (110).

6. The device for controlling harmonic sources of industrial equipment according to claim 5, characterized in that: A positioning bracket (22) is provided at the bottom of the outer cabinet (1), and a plurality of supporting legs (23) are integrally provided at the lower end of the positioning bracket (22).

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