Heat dissipation device of electrical control cabinet

Abstract

The utility model provides a heat dissipation device of an electrical control cabinet. The heat dissipation device of the electrical control cabinet comprises a cabinet body, the surface of the rear wall of the cabinet body is fixedly connected with an external heat preservation box, the surface of the external heat preservation box is connected with a condenser through bolts, the top of the condenser is provided with a heat dissipation groove, the interior of the external heat preservation box is connected with a partition plate, and the partition plate is fixedly connected with the heat dissipation groove. A plurality of uniformly distributed heat dissipation fins are arranged on the surface of the partition plate, an internal heat preservation box is connected to one side of the external heat preservation box, the internal heat preservation box is located in the cabinet body, one end of each heat dissipation fin penetrates through the surface of the partition plate and extends into the internal heat preservation box, and an evaporator coil is arranged on the surface of the condenser; the heat dissipation device of the electrical control cabinet provided by the utility model has the advantages of being capable of effectively dissipating heat of components which are seriously heated and saving energy at the same time.

Description

Technical Field

[0001] The utility model relates to the field of electric control cabinets, in particular to a heat dissipation device of the electric control cabinet. Background Art

[0002] Electrical control cabinets are mainly used for electrical operation and control of mechanical equipment on site. There are many cables and electrical components, switchgear, measuring instruments, protective electrical appliances and auxiliary equipment installed inside the electrical control cabinet. These electrical components tend to generate heat during live operation, causing excessive heat in the cabinet. The heat can easily accumulate in the electrical control cabinet, causing the electrical control cabinet to burn. Therefore, good heat dissipation components are essential for electrical control cabinets.

[0003] At present, traditional heat dissipation components for electrical control cabinets still have certain shortcomings during use: during the operation of the electrical control cabinet, some components consume a lot of energy and generate serious heat. Due to the large number of various components and equipment inside, the heat dissipation air cannot effectively take away the heat around it. Secondly, although some current electrical control cabinet structures use condensers for heat dissipation, the heat exchange effect is poor and the cooling effect inside the cabinet is insufficient.

[0004] Therefore, it is necessary to provide a new heat dissipation device for an electrical control cabinet to solve the above technical problems. Utility Model Content

[0005] The technical problem solved by the utility model is to provide a heat dissipation device for an electrical control cabinet which can effectively dissipate heat for components with serious heat generation and save energy.

[0006] In order to solve the above technical problems, the utility model provides a heat dissipation device for an electrical control cabinet, comprising: a cabinet body, an external heat preservation box is fixedly connected to the rear wall surface of the cabinet body, a condenser is connected to the surface of the external heat preservation box by bolts, a heat dissipation groove is arranged on the top of the condenser, a partition is connected to the inside of the external heat preservation box, a plurality of evenly distributed heat dissipation fins are arranged on the surface of the partition, an internal heat preservation box is connected to one side of the external heat preservation box, the internal heat preservation box is located inside the cabinet body, one end of the plurality of heat dissipation fins passes through the surface of the partition and extends to the inside of the internal heat preservation box, and the surface of the condenser is provided with a heat dissipation groove. An evaporator coil is arranged, and the evaporator coil extends to the interior of the internal insulation box and passes through the surfaces of several heat dissipation fins. A top fan is arranged on the surface of the external insulation box located on the upper side of the condenser, and bottom fans are installed on both side walls of the external insulation box near the bottom. The bottom of the internal insulation box is symmetrically equipped with an internal fan by bolts, and a front wall surface of the internal insulation box is connected to several evenly distributed air outlet pipes near the top. The top of the internal insulation box is connected to a hose, and a blow pipe is installed on the end of the hose. Electric shutters are arranged on the surfaces of the top fan and the bottom fan.

[0007] As a further solution of the utility model, a fixing plate is fixedly connected to the surface of the blowing pipe, a mounting hole is opened on the surface of the fixing plate, and a heat preservation sleeve is sleeved on the outside of the hose.

[0008] Through the above technical solution, when the heat dissipation structure dissipates heat through the condenser, the liquid refrigerant inside the condenser flows through the evaporator coil, and transfers the low temperature to the external insulation box and several heat dissipation fins between the internal insulation box. At this time, the internal fan is turned on, and the internal fan draws the hot air inside the cabinet into the internal insulation box, and then discharges it from the air outlet on the top after heat exchange. Several horizontally arranged air outlets can blow cold air evenly to the components in the cabinet. For the part of the cabinet where the heat is more serious and not easily blown directly by the cold air, the user can install the blow pipe to one side through the fixing plate in advance, so that the cold air flowing through the hose will blow directly to that place, and quickly and directly cool down and dissipate heat, so as to avoid overheating and short circuit of the structure.

[0009] As a further solution of the utility model, a cabinet door is connected to the front wall surface of the cabinet body via a hinge, and a sealing strip is adhered to the surface of the cabinet door on one side facing the cabinet body.

[0010] Through the above technical solution, when the cabinet door is closed, the sealing strip abuts against the door frame of the cabinet body, which can prevent external moisture and dust from entering therein.

[0011] As a further solution of the utility model, a temperature control switch is installed on an inner wall of one side of the cabinet, and the top fan, the bottom fan, the internal fan and the condenser are all electrically connected to the temperature control switch.

[0012] Through the above technical solution, by setting a temperature control switch, when the components inside the cabinet are running at high power and the external ambient temperature is also too high, higher than a set value, the condenser is turned on to allow the evaporator coil to transfer the low temperature of the refrigerant to the inside of the cabinet. At the same time, the structure connects the evaporator coil and a number of heat dissipation fins together, so that the air flowing through the internal insulation box can complete the heat exchange more fully and evenly, and a number of groups of air outlet ducts blow the cold air evenly to the running components, so the heat dissipation effect is better and more uniform. In addition, since the air in the cabinet is internally circulated and does not come into contact with the outside air, it can prevent external dust and moisture from entering the cabinet.

[0013] As a further solution of the utility model, the left and right inner walls of the cabinet are symmetrically provided with horizontal keels, and the two groups of horizontal keels distributed vertically are connected with vertical keels by bolts, and the surfaces of the horizontal keels and the vertical keels are provided with a number of evenly distributed through holes.

[0014] Through the above technical solution, various electronic components in the structure are installed on the vertical purlins through connectors and bolts, and the spacing between the vertical purlins can be adjusted through the transverse purlins, making the structural design humanized.

[0015] As a further solution of the utility model, the four corners of the bottom of the cabinet are fixedly connected with supporting feet, and the bottoms of the supporting feet are bonded with shock-absorbing pads.

[0016] Through the above technical solution, when the internal fans, condensers and other electrical components are in operation, in order to prevent large structural vibrations, special shock-absorbing pads are designed at the bottom of the legs to reduce vibrations.

[0017] As a further solution of the utility model, the partition is located between the external insulation box and the internal insulation box, and the two ends of the plurality of heat dissipation fins are respectively located inside the external insulation box and the internal insulation box.

[0018] Through the above technical solution, when the heat inside the cabinet is low and the external ambient temperature is lower than that inside the cabinet, the condenser can be turned off and the internal fan can be run. The internal fan will transfer the internal heat to the surface of the cooling fins, and then the external circulation system composed of the top fan and the bottom fan will export the heat on the cooling fins to complete the heat dissipation work. This structure has two systems, one relying on the condenser and the other relying on the fan. It can automatically adjust according to the temperature inside the cabinet and the ambient temperature, thereby achieving energy saving.

[0019] Compared with the related art, the heat dissipation device of an electrical control cabinet provided by the utility model has the following beneficial effects:

[0020] 1. In the utility model, when the heat dissipation structure dissipates heat through the condenser, the liquid refrigerant inside the condenser flows through the evaporator coil, and conducts the low temperature to the external insulation box and the plurality of heat dissipation fins between the internal insulation box. At this time, the internal fan is turned on, and the internal fan draws the hot air inside the cabinet into the internal insulation box, and then discharges it from the air outlet on the top after heat exchange. Several horizontally arranged air outlets can blow the cold air evenly to the components in the cabinet. For the part of the cabinet that is more heated and not easily blown directly by the cold air, the user can install the blowing pipe to one side thereof through the fixing plate in advance, so that the cold air flowing through the hose will blow directly to the place, and the heat dissipation can be quickly and directly reduced to avoid overheating and short circuit of the structure.

[0021] 2. In the utility model, by setting a temperature control switch, when the components inside the cabinet are running at high power and the external ambient temperature is also too high, higher than a set value, the condenser is turned on to allow the evaporator coil to transfer the low temperature of the refrigerant to the inside of the cabinet. At the same time, the structure connects the evaporator coil and a number of heat dissipation fins together, so that the air flowing through the internal insulation box can complete the heat exchange more fully and evenly, and a number of groups of air outlet ducts blow the cold air evenly to the running components, so the heat dissipation effect is better and more uniform. In addition, since the air in the cabinet is internally circulated and does not come into contact with the outside air, it can prevent external dust and moisture from entering the cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0023] Figure 1 The overall structure of a heat dissipation device for an electrical control cabinet in the utility model is shown in FIG. Figure 1 ;

[0024] Figure 2 The overall structure of a heat dissipation device for an electrical control cabinet in the utility model is shown in FIG. Figure 2 ;

[0025] Figure 3 A schematic diagram of the partial structure of a heat dissipation device of an electrical control cabinet in the utility model Figure 1 ;

[0026] Figure 4 A schematic diagram of the partial structure of a heat dissipation device of an electrical control cabinet in the utility model Figure 2 .

[0027] Description of main symbols:

[0028] 1. Cabinet body; 2. Cabinet door; 3. Sealing strip; 4. Vertical keel; 5. Horizontal keel; 6. Temperature control switch; 7. Internal insulation box; 8. External insulation box; 9. Bottom fan; 10. Top fan; 11. Electric shutter; 12. Heat sink; 13. Condenser; 14. Air outlet duct; 15. Insulation sleeve; 16. Fixed plate; 17. Internal fan; 18. Heat dissipation fins; 19. Partition; 20. Evaporator coil; 21. Blowing pipe; 22. Hose. DETAILED DESCRIPTION

[0029] Please combine Figures 1 to 4 ,in, Figure 1 The overall structure of a heat dissipation device for an electrical control cabinet in the utility model is shown in FIG. Figure 1 ; Figure 2 The overall structure of a heat dissipation device for an electrical control cabinet in the utility model is shown in FIG. Figure 2 ; Figure 3 A schematic diagram of the partial structure of a heat dissipation device of an electrical control cabinet in the utility model Figure 1 ; Figure 4 A schematic diagram of the partial structure of a heat dissipation device of an electrical control cabinet in the utility model Figure 2 A heat dissipation device for an electrical control cabinet comprises:

[0030] The cabinet 1 has an external heat preservation box 8 fixedly connected to the rear wall surface of the cabinet 1, and a condenser 13 is connected to the surface of the external heat preservation box 8 by bolts. A heat dissipation groove 12 is arranged on the top of the condenser 13. A partition 19 is connected to the inside of the external heat preservation box 8, and a plurality of evenly distributed heat dissipation fins 18 are arranged on the surface of the partition 19. An internal heat preservation box 7 is connected to one side of the external heat preservation box 8. The internal heat preservation box 7 is located inside the cabinet 1 and one end of the plurality of heat dissipation fins 18 passes through the surface of the partition 19 and extends to the inside of the internal heat preservation box 7. An evaporator coil 20 is arranged on the surface of the condenser 13, and the evaporator coil 20 extends to the inside of the cabinet 1. It extends to the interior of the internal insulation box 7 and passes through the surface of several heat dissipation fins 18. A top fan 10 is arranged on the surface of the external insulation box 8 located on the upper side of the condenser 13. Bottom fans 9 are installed on both side walls of the external insulation box 8 near the bottom. The bottom of the internal insulation box 7 is symmetrically installed with internal fans 17 by bolts. A front wall surface of the internal insulation box 7 is connected to several evenly distributed air outlet pipes 14 near the top. The top of the internal insulation box 7 is connected to a hose 22. A blow pipe 21 is installed on the end of the hose 22. Electric shutters 11 are arranged on the surfaces of the top fan 10 and the bottom fan 9.

[0031] like Figure 1 As shown, a fixing plate 16 is fixedly connected to the surface of the blowing pipe 21 , a mounting hole is opened on the surface of the fixing plate 16 , and a heat preservation sleeve 15 is sleeved on the outside of the hose 22 .

[0032] When the heat dissipation structure dissipates heat through the condenser 13, the liquid refrigerant inside the condenser 13 flows through the evaporator coil 20, and transmits the low temperature to the external insulation box 8 and the several heat dissipation fins 18 between the internal insulation box 7. At this time, the internal fan 17 is turned on, and the internal fan 17 draws the hot air inside the cabinet 1 into the internal insulation box 7, and then discharges it from the air outlet on the top after heat exchange. Several horizontally arranged air outlets can blow cold air evenly to the components in the cabinet 1. For the part of the cabinet 1 where the heat is more serious and is not easily blown directly by the cold air, the user can install the blowing pipe 21 to one side thereof through the fixing plate 16 in advance, so that the cold air flowing through the hose 22 will blow directly to that place, and quickly and directly cool down and dissipate heat to avoid overheating and short circuit of the structure.

[0033] like Figure 1 As shown, a cabinet door 2 is connected to the front wall surface of the cabinet body 1 via a hinge, and a sealing strip 3 is adhered to the surface of the cabinet door 2 on one side facing the cabinet body 1 .

[0034] When the cabinet door 2 is closed, the sealing strip 3 abuts against the door frame of the cabinet body 1, thereby preventing external moisture and dust from entering therein.

[0035] like Figure 1 As shown, a temperature control switch 6 is installed on the inner wall of one side of the cabinet 1 , and the top fan 10 , the bottom fan 9 , the internal fan 17 and the condenser 13 are all electrically connected to the temperature control switch 6 .

[0036] By setting the temperature control switch 6, when the components inside the cabinet 1 are running at high power and the external ambient temperature is also too high, higher than a set value, the condenser 13 is turned on to allow the evaporator coil 20 to transfer the low temperature of the refrigerant to the inside of the cabinet 1. At the same time, the structure connects the evaporator coil 20 and a plurality of heat dissipation fins 18 together, so that the air flowing through the internal insulation box 7 can complete the heat exchange more fully and evenly, and a plurality of groups of air outlet ducts 14 blow the cold air evenly to the running components, so that the heat dissipation effect is better and more uniform. In addition, since the air in the cabinet 1 is internally circulated and does not come into contact with the external air, it can prevent external dust and moisture from entering the cabinet.

[0037] like Figure 1 As shown, the left and right inner walls of the cabinet 1 are symmetrically provided with horizontal keels 5, and the two groups of horizontal keels 5 distributed vertically are connected with vertical keels 4 by bolts, and the surfaces of the horizontal keels 5 and the vertical keels 4 are provided with a plurality of evenly distributed through holes.

[0038] Various electronic components in the structure are installed on the vertical keels 4 through connectors and bolts, and the spacing between the vertical keels 4 can be adjusted through the horizontal keels 5, so the structural design is humanized.

[0039] like Figure 1As shown, the four corners of the bottom of the cabinet 1 are fixedly connected with supporting feet, and the bottom of the supporting feet is bonded with shock-absorbing pads.

[0040] To prevent the structure from vibrating too much when the internal fan 17 and the condenser 13 and other electrical components are in operation, a special shock-absorbing pad is designed at the bottom of the support leg to reduce the vibration.

[0041] like Figure 1 As shown, the partition 19 is located between the external heat preservation box 8 and the internal heat preservation box 7, and the two ends of the plurality of heat dissipation fins 18 are located inside the external heat preservation box 8 and the internal heat preservation box 7, respectively.

[0042] When the heat inside the cabinet 1 is low and the external ambient temperature is lower than that inside the cabinet, the condenser 13 can be turned off and the internal fan 17 can be run. The internal fan 17 will transfer the internal heat to the surface of the heat dissipation fins 18, and then the external circulation system composed of the top fan 10 and the bottom fan 9 will export the heat on the heat dissipation fins 18 to complete the heat dissipation work. This structure has two systems, one relying on the condenser 13 and the other relying on the fan. It can automatically adjust according to the temperature inside the cabinet and the ambient temperature, thereby achieving energy saving.

[0043] The working principle of the heat dissipation device of an electrical control cabinet provided by the utility model is as follows:

[0044] The first step: when the heat dissipation structure dissipates heat through the condenser 13, the liquid refrigerant inside the condenser 13 flows through the evaporator coil 20, and conducts the low temperature to the external insulation box 8 and the plurality of heat dissipation fins 18 between the internal insulation box 7. At this time, the internal fan 17 is turned on, and the internal fan 17 draws the hot air inside the cabinet 1 into the internal insulation box 7, and then discharges it from the air outlet on the top after heat exchange. Several transversely arranged air outlets can evenly blow the cold air to the components in the cabinet 1. For the part of the cabinet 1 where the heat is more serious and is not easily blown directly by the cold air, the user can install the blowing pipe 21 to one side thereof through the fixing plate 16 in advance, so that the cold air flowing through the hose 22 will blow directly to the place, and quickly and directly cool down and dissipate heat to avoid overheating and short circuit of the structure;

[0045] The second step: by setting the temperature control switch 6, when the components inside the cabinet 1 are running at high power and the external ambient temperature is also too high, higher than a set value, the condenser 13 is turned on to allow the evaporator coil 20 to transfer the low temperature of the refrigerant to the inside of the cabinet 1. At the same time, the structure connects the evaporator coil 20 and a plurality of heat dissipation fins 18 together, so that the air flowing through the internal insulation box 7 can complete the heat exchange more fully and evenly, and a plurality of groups of air outlet ducts 14 blow the cold air evenly to the running components, so that the heat dissipation effect is better and more uniform. In addition, since the air in the cabinet 1 is internally circulated and does not come into contact with the external air, it can prevent external dust and moisture from entering the cabinet.

[0046] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0047] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0048] Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations or direct or indirect applications may be made to these embodiments without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the attached claims and their equivalents, which are equally included in the scope of patent protection of the present invention.

Claims

1. A heat dissipation device for an electrical control cabinet, characterized in that: The cabinet (1) comprises an external heat preservation box (8) fixedly connected to the rear wall surface of the cabinet (1), a condenser (13) connected to the surface of the external heat preservation box (8) by bolts, a heat dissipation groove (12) arranged on the top of the condenser (13), a partition (19) connected to the inside of the external heat preservation box (8), a plurality of evenly distributed heat dissipation fins (18) arranged on the surface of the partition (19), an internal heat preservation box (7) connected to one side of the external heat preservation box (8), the internal heat preservation box (7) being located inside the cabinet (1) and one end of the plurality of heat dissipation fins (18) passing through the surface of the partition (19) and extending to the inside of the internal heat preservation box (7), an evaporator coil (20) arranged on the surface of the condenser (13), and the evaporator coil (20) arranged on the surface of the evaporator coil (20) The tube (20) extends to the interior of the internal insulation box (7) and passes through the surfaces of a plurality of heat dissipation fins (18); a top fan (10) is arranged on the surface of the external insulation box (8) located on the upper side of the condenser (13); bottom fans (9) are installed at positions near the bottom of both side walls of the external insulation box (8); an internal fan (17) is installed symmetrically at the bottom of the internal insulation box (7) by bolts; a plurality of evenly distributed air outlet pipes (14) are connected to the front wall surface of the internal insulation box (7) near the top; a hose (22) is connected to the top of the internal insulation box (7); a blow pipe (21) is installed at the end of the hose (22); and electric blinds (11) are arranged on the surfaces of the top fan (10) and the bottom fan (9).

2. The heat dissipation device of the electrical control cabinet according to claim 1, characterized in that: A fixing plate (16) is fixedly connected to the surface of the blowing pipe (21), a mounting hole is provided on the surface of the fixing plate (16), and a heat-insulating sleeve (15) is sleeved on the outside of the hose (22).

3. The heat dissipation device for an electrical control cabinet according to claim 1, characterized in that: The front wall surface of the cabinet body (1) is connected to a cabinet door (2) via a hinge, and a sealing strip (3) is bonded to a surface of the cabinet door (2) on one side facing the cabinet body (1).

4. The heat dissipation device for an electrical control cabinet according to claim 1, characterized in that: A temperature control switch (6) is installed on an inner wall of one side of the cabinet (1), and the top fan (10), the bottom fan (9), the internal fan (17) and the condenser (13) are all electrically connected to the temperature control switch (6).

5. The heat dissipation device for an electrical control cabinet according to claim 1, characterized in that: The inner walls on the left and right sides of the cabinet (1) are symmetrically provided with transverse keels (5), and the two groups of transverse keels (5) distributed vertically are connected with vertical keels (4) by bolts, and the surfaces of the transverse keels (5) and the vertical keels (4) are provided with a plurality of evenly distributed through holes.

6. The heat dissipation device for an electrical control cabinet according to claim 1, characterized in that: The four corners of the bottom of the cabinet (1) are all fixedly connected with supporting feet, and the bottoms of the supporting feet are bonded with shock-absorbing pads.

7. The heat dissipation device for an electrical control cabinet according to claim 1, characterized in that: The partition (19) is located between the external heat-insulating box (8) and the internal heat-insulating box (7), and the two ends of the plurality of heat-dissipating fins (18) are located inside the external heat-insulating box (8) and the internal heat-insulating box (7), respectively.

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