Air-to-air heat dissipation device for transformer

Abstract

The utility model provides an air-to-air heat dissipation device for a transformer. The air-to-air heat dissipation device for the transformer comprises a general assembly frame, a heat exchange bin, a first fan and a second fan. According to the air-to-air heat dissipation device of the transformer, the general assembly frame is arranged, the heat exchange bin is fixedly installed on the general assembly frame, the criss-cross heat exchange channels composed of the fins are arranged in the heat exchange bin, the inner circulation air channel is communicated with the longitudinal heat exchange channels, and the outer circulation air channel is communicated with the transverse heat exchange channels. The first fan communicating with the internal circulation air duct is fixedly installed at the bottom end of the internal circulation air duct and fixedly installed on the final assembly frame. The second draught fan is fixedly installed on one side of the final assembly frame, the draught fans are directly fixed to the final assembly frame, meanwhile, the first draught fan is fixedly installed at the bottom end of the inner circulation air duct, shaking generated in the operation process of the first draught fan and the second draught fan is reduced, and then noise generated in the operation process of the first draught fan and the second draught fan is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat dissipation equipment, and in particular relates to an air-to-air heat dissipation device for a transformer. Background Art

[0002] The transformer will generate a lot of heat during operation, so a heat exchanger will be used to dissipate heat from the transformer's operating environment. The commonly used radiator is an air heat exchanger, which exchanges heat between the air inside the transformer's operating environment and the outside air, and then re-transmits it to the transformer's allowed environment. This has achieved the effect of heat exchange and cooling the transformer. Air radiators usually use fans to circulate air. At present, the fan on the air radiator is usually directly installed on the top of the radiator, which is not convenient for the maintenance of the fan. At the same time, the motor on the fan is directly fixed on the heat exchanger, which is prone to shaking during operation, causing the fan to make a lot of noise. Utility Model Content

[0003] The embodiment of the utility model provides an air-to-air heat dissipation device for a transformer, aiming to solve the problem that the installation method of the fan in the heat exchanger in the prior art is inconvenient for maintenance and is prone to generate noise during operation.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide an air-to-air heat dissipation device for a transformer, comprising:

[0005] Assembly rack;

[0006] A heat exchange chamber, the heat exchange chamber comprising an inner circulation air duct arranged in a vertical direction, and an outer circulation air duct arranged adjacent to the inner circulation air duct and arranged in a horizontal direction;

[0007] A first fan is installed at the bottom end of the inner circulation air duct and fixedly installed on the assembly frame, and is used to transport air into the inner circulation air duct;

[0008] The second fan is installed at one end of the outer circulation air duct and fixedly installed on the assembly frame, and is used for conveying air into the outer circulation air duct.

[0009] In a possible implementation, a mounting frame is fixedly installed inside the general assembly frame, the bottom end of the mounting frame is fixedly installed on the general assembly frame, and the first fan is fixedly installed on the top end of the mounting frame.

[0010] In a possible implementation manner, a support frame is fixedly mounted on one side of the general assembly frame, and the second fan is fixedly mounted on the support frame.

[0011] In a possible implementation, a mounting frame for fixing the heat exchange chamber is fixedly mounted on the general assembly frame, and the mounting frame is composed of a plurality of connecting rods connected end to end.

[0012] In a possible implementation, the connecting rod includes a top plate for connecting to the heat exchange chamber, and a side plate located inside the installation frame.

[0013] In a possible implementation, the connecting rod further includes a bottom plate disposed in parallel with the top plate and an outer plate disposed in parallel with the side plate, and an avoidance gap is disposed between the outer plate and the top plate.

[0014] In a possible implementation, a connecting air duct is provided between the first fan and the heat exchange chamber, and the connecting air duct is fixedly mounted on the side panel.

[0015] In a possible implementation, the motor on the first fan is located inside the mounting frame, and a clearance opening for withdrawing the mounting frame is provided on one side of the final assembly frame.

[0016] Compared with the prior art, the scheme shown in the embodiment of the present application is provided with a general assembly frame, a heat exchange chamber is fixedly installed on the general assembly frame, and a criss-cross heat exchange channel composed of fins is provided inside the heat exchange chamber, the inner circulation air duct is connected with the longitudinal heat exchange channel, and the outer circulation air duct is connected with the transverse heat exchange channel. The air in the operating environment of the transformer is heat exchanged with the outside air. The present application is achieved by fixing the first fan connected with the inner circulation air duct at the bottom end of the inner circulation air duct and fixing it on the general assembly frame. By fixing the second fan on one side of the general assembly frame, the fans are directly fixed on the general assembly frame, and the first fan is fixed at the bottom end of the inner circulation air duct, so that the center of gravity of the heat exchange chamber is located at the bottom of the heat exchange chamber, further enhancing the fixing effect of the fan. The shaking of the first fan and the second fan during operation is reduced, thereby reducing the noise of the first fan and the second fan during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of the transformer air-to-air heat dissipation device provided by an embodiment of the utility model;

[0018] Figure 2 A schematic diagram of the structure of a connecting rod provided in an embodiment of the utility model;

[0019] Figure 3 A schematic diagram of the installation structure of the connecting air duct provided in an embodiment of the utility model;

[0020] Figure 4 A schematic diagram of the installation structure of the mounting frame provided in an embodiment of the utility model.

[0021] Description of reference numerals:

[0022] 1. Assembly frame; 2. Heat exchange chamber; 3. First fan; 4. Second fan; 5. Mounting frame; 6. Support frame; 7. Mounting frame; 71. Top plate; 72. Side plate; 73. Bottom plate; 74. Outer plate; 8. Connecting air duct. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0024] Please also read Figures 1 to 4 , the transformer air-to-air heat dissipation device provided by the utility model is now described. The transformer air-to-air heat dissipation device includes a general assembly frame 1, a heat exchange chamber 2, a first fan 3 and a second fan 4. The heat exchange chamber 2 includes an inner circulation air duct arranged along the vertical direction, and an outer circulation air duct arranged adjacent to the inner circulation air duct and arranged along the horizontal direction; the first fan 3 is installed at the bottom end of the inner circulation air duct and is fixedly installed on the general assembly frame 1, and is used to transport air to the inside of the inner circulation air duct; the second fan 4 is installed at one end of the outer circulation air duct, and is fixedly installed on the general assembly frame 1, and is used to transport air to the inside of the outer circulation air duct.

[0025] Compared with the prior art, the transformer air-to-air heat dissipation device provided in this embodiment is provided with a general assembly frame 1, on which a heat exchange chamber 2 is fixedly installed, and a criss-cross heat exchange channel composed of fins is provided inside the heat exchange chamber 2, the inner circulation air duct is connected to the longitudinal heat exchange channel, and the outer circulation air duct is connected to the transverse heat exchange channel. The air in the transformer operating environment is heat exchanged with the outside air. The present application is performed by fixing the first fan 3 connected to the inner circulation air duct at the bottom end of the inner circulation air duct and fixing it on the general assembly frame 1. By fixing the second fan 4 on one side of the general assembly frame 1, the fans are directly fixed on the general assembly frame 1, and the first fan 3 is fixed at the bottom end of the inner circulation air duct, so that the center of gravity of the heat exchange chamber 2 is located at the bottom of the heat exchange chamber 2, further enhancing the fixing effect of the fan. Reduce the shaking of the first fan 3 and the second fan 4 during operation, thereby reducing the noise of the first fan 3 and the second fan 4 during operation.

[0026] Specifically, in this embodiment, the first fan 3 and the second fan 4 both adopt axial flow fans, and the motors on the first fan 3 and the second fan 4 are fixedly mounted on the casings of the first fan 3 and the second fan 4, and the casings of the first fan 3 and the second fan 4 are directly fixedly mounted on the assembly frame 1 by bolts.

[0027] In some embodiments, the above-mentioned assembly frame 1 can be used as follows Figure 1 , Figure 4 See also Figure 1 , Figure 4 The mounting frame 5 is fixedly mounted inside the assembly frame 1, the bottom end of the mounting frame 5 is fixedly mounted on the assembly frame 1, and the first fan 3 is fixedly mounted on the top end of the mounting frame 5. The mounting frame 5 is mounted at the bottom of the assembly frame 1 and is located inside the assembly frame 1. The bottom end of the mounting frame 5 is fixedly mounted on the bottom of the assembly frame 1 by bolts or welding, and the first fan 3 is fixedly mounted on the top surface of the mounting frame 5, so that the first fan 3 can be fixed to the inside of the assembly frame 1.

[0028] Preferably, in this embodiment, a plurality of transverse ribs are fixedly mounted on the bottom of the assembly frame 1 , and the mounting frame 5 is overlapped on the transverse ribs and fixedly mounted on the transverse ribs.

[0029] In some embodiments, the above-mentioned assembly frame 1 can be used as follows Figure 1 , Figure 4 See also Figure 1 , Figure 4 A support frame 6 is fixedly mounted on one side of the assembly frame 1, and the second fan 4 is fixedly mounted on the support frame 6. The support frame 6 is a triangular support structure. The support frame 6 is located on the side of the assembly frame 1 where the end of the external circulation air duct is arranged. The housing of the second fan 4 is fixedly mounted on the support frame 6, so that the second fan 4 can be effectively fixed.

[0030] In some embodiments, the above-mentioned assembly frame 1 can be used as follows Figure 1 , Figure 2 and Figure 3 See also Figure 1 , Figure 2 and Figure 3 The assembly frame 1 is fixedly mounted with a mounting frame 7 for fixing the heat exchange bin 2, and the mounting frame 7 is composed of a plurality of connecting rods connected end to end. The mounting frame 7 is fixedly mounted on the top of the assembly frame 1, and a buffer pad is provided between the assembly frame 1 and the mounting frame 7. The channel at the bottom of the heat exchange bin 2 is located inside the mounting frame 7. The side wall of the heat exchange bin 2 is overlapped on the top of the mounting frame 7 and fixedly mounted on the mounting frame 7 by bolts. On the one hand, it saves on-site installation space, and at the same time plays a role in supporting and fixing the heat exchange bin 2.

[0031] In some embodiments, the connecting rod may be Figure 2 , Figure 3 See also Figure 2 , Figure 3The connecting rod includes a top plate 71 for connecting with the heat exchange bin 2, and a side plate 72 located on the inner side of the installation frame 7. The connecting rod is an integral bending structure. A top plate 71 fixedly connected to the heat exchange bin 2 is provided on the top surface of the connecting rod, and a side plate 72 for slidingly cooperating with the lower channel of the heat exchange bin 2 is also provided on the connecting rod. A plurality of connecting rods are connected end to end to form a guide hole for guiding the lower channel of the heat exchange bin 2, which can play a certain positioning and guiding role when the heat exchange bin 2 is installed.

[0032] Preferably, in this embodiment, a buffer pad is installed between the side panel 72 and the outer side wall of the lower channel of the heat exchange bin 2. The buffer pad can improve the stability of the fixation of the heat exchange bin 2 and reduce the noise generated between the heat exchange bin 2 and the assembly frame 1 during operation.

[0033] In some embodiments, the connecting rod may be Figure 2 , Figure 3 See also Figure 2 , Figure 3 , the connecting rod also includes a bottom plate 73 arranged in parallel with the top plate 71 and an outer plate 74 arranged in parallel with the side plate 72, and an avoidance gap is set between the outer plate 74 and the top plate 71. The connecting rod is formed by bending a square tube as a whole, and the width of the outer plate 74 is smaller than the width of the side plate 72, and the width of the top plate 71 is smaller than the width of the bottom plate 73, so that there is an avoidance gap between the top plate 71 and the outer plate 74. When the heat exchange bin 2 is installed on the general assembly frame 1, the bottom of the heat exchange bin 2 is fixedly installed on the top plate 71, and the heat exchange bin 2 can be fixed to the top plate 71 through the avoidance gap by bolts. At the same time, the lower end channel of the heat exchange bin 2 can also be fixed to the side plate 72 through the avoidance gap by bolts. It is easy to operate and more convenient to install the heat exchange bin 2 on the general assembly frame 1.

[0034] Specifically, in this embodiment, the outer plate 74 is bent and disposed on the bottom plate 73 to enhance the overall strength of the connecting rod.

[0035] In some embodiments, the first fan 3 may be used as follows: Figure 1 , Figure 3 See also Figure 1 , Figure 3, a connecting air duct 8 is provided between the first fan 3 and the heat exchange bin 2, and the connecting air duct 8 is fixedly mounted on the side plate 72. The two ends of the connecting air duct 8 are respectively connected to the output end of the first fan 3 and the air inlet end of the internal circulation channel on the heat exchange bin 2. A connecting air duct 8 is installed at the air outlet of the first fan 3 and the bottom opening of the heat exchange bin 2, and the first fan 3 and the heat exchange bin 2 are connected together through the connecting air duct 8, and the outer side wall of the connecting air duct 8 is attached to the side plate 72 of the connecting rod. The connecting air duct 8 is fixed to the side plate 72 by bolts to achieve the fixation of the connecting air duct 8. All parts can be fixed on the general assembly frame 1, the fixing effect is improved, and the noise generated during operation is reduced.

[0036] Specifically, in this embodiment, the opening size of the bottom end of the heat exchange chamber 2 is relatively large, and the connecting air duct 8 is used to convert the relatively large size of the bottom end of the heat exchange chamber 2 into a size that matches the output port of the first fan 3, so that the first fan 3 can be connected with the heat exchange chamber 2.

[0037] In some embodiments, the first fan 3 may be used as follows: Figure 1 , Figure 4 See also Figure 1 , Figure 4 , the motor on the first fan 3 is located inside the mounting frame 5, and a clearance opening for pulling out the mounting frame 5 is provided on one side of the general assembly frame 1. The mounting frame 5 adopts a frame structure, the outer shell of the first fan 3 is fixedly installed on the top of the mounting frame 5, and the motor on the first fan 3 is located outside the outer shell of the first fan 3 and inside the mounting frame 5, so that the structural layout is compact and the on-site installation space is saved. At the same time, by providing a clearance opening on the side of the general assembly frame 1, the mounting frame 5 can carry the motor and be pulled out from the clearance opening alone, which is convenient for the later installation and disassembly of the motor and the fan, and for the later maintenance.

[0038] Specifically, in this embodiment, the bottom of the mounting frame 5 is fixedly mounted on the final assembly frame 1 by means of bolts.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A transformer air-to-air heat dissipation device, characterized in that: include: Assembly frame (1); A heat exchange chamber (2), the heat exchange chamber (2) comprising an inner circulation air duct arranged in a vertical direction, and an outer circulation air duct arranged adjacent to the inner circulation air duct and arranged in a horizontal direction; A first fan (3), installed at the bottom end of the inner circulation air duct and fixedly mounted on the assembly frame (1), and used for conveying air into the inner circulation air duct; The second fan (4) is installed at one end of the external circulation air duct and fixedly mounted on the assembly frame (1) and is used for conveying air into the external circulation air duct.

2. The transformer air-to-air heat dissipation device according to claim 1, characterized in that: A mounting frame (5) is fixedly mounted inside the general assembly frame (1), the bottom end of the mounting frame (5) is fixedly mounted on the general assembly frame (1), and the first fan (3) is fixedly mounted on the top end of the mounting frame (5).

3. The transformer air-to-air heat dissipation device according to claim 1 or 2, characterized in that: A support frame (6) is fixedly mounted on one side of the general assembly frame (1), and the second fan (4) is fixedly mounted on the support frame (6).

4. The transformer air-to-air heat dissipation device according to claim 1, characterized in that: A mounting frame (7) for fixing the heat exchange chamber (2) is fixedly mounted on the general assembly frame (1), and the mounting frame (7) is composed of a plurality of connecting rods connected end to end.

5. The transformer air-to-air heat dissipation device according to claim 4, characterized in that: The connecting rod comprises a top plate (71) for connecting to the heat exchange chamber (2), and a side plate (72) located inside the installation frame (7).

6. The transformer air-to-air heat dissipation device according to claim 5, characterized in that: The connecting rod further comprises a bottom plate (73) arranged in parallel with the top plate (71) and an outer plate (74) arranged in parallel with the side plate (72), wherein an escape gap is arranged between the outer plate (74) and the top plate (71).

7. The transformer air-to-air heat dissipation device according to claim 5, characterized in that: A connecting air duct (8) is provided between the first fan (3) and the heat exchange chamber (2), and the connecting air duct (8) is fixedly mounted on the side plate (72).

8. The transformer air-to-air heat dissipation device according to claim 2, characterized in that: The motor on the first fan (3) is located inside the mounting frame (5), and a clearance opening for withdrawing the mounting frame (5) is provided on one side of the general assembly frame (1).

Images