Heat dissipation electric box for dry-type transformer
By designing a dry -type transformer heat dissipation box that contains heat dissipation components and open -side fliplets, it solves the problem of low heat dissipation efficiency of traditional dry transformers, and achieves the effect of effective cooling and extending the service life of the equipment.
Patent Information
- Application Number
- CN202420314186.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-20
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-02-20
AI Technical Summary
The heat dissipation structure of traditional dry transformers is inefficient, especially when the external temperature rises, which leads to an increase in the transformer temperature and affects the reliability and service life of the equipment.
The cooling electric box for a dry transformer is designed, including the top heat dissipation component and the open -handed side flip plate. The heat dissipation components include the refrigeration device and the cooling cavity. The cooling circulating condensate and the fan assist the heat dissipation to achieve active cooling.
Through active heat dissipation and fast heat dissipation design, the heat of the transformer in the process of work is effectively reduced, the working temperature is stable, the service life of the transformer is extended, and the reliability of the device is improved.
Smart Images
Figure CN222421554U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of dry-type transformers, in particular to a heat dissipation electric box for dry-type transformers. Background Art
[0002] Dry-type transformers are widely used in local lighting, high-rise buildings, airports and docks, CNC machinery and equipment and other places. Simply put, a dry-type transformer refers to a transformer whose core and winding are not immersed in insulating oil. Most of the existing dry-type transformers are cooled by natural air, which may cause the dry-type transformer to heat up.
[0003] The heat dissipation structure of the traditional dry-type transformer is: a horizontal fan is provided at the bottom, a horizontal wind shield is provided at the upper 1 / 3 of the coil, and an exhaust fan is provided on the top of the transformer cabinet. When the transformer is operating normally, the bottom fan starts the forced air circulation, and the wind passes through the horizontal wind shield through the narrow gap between the wind shield and the coil. The top fan takes away the hot air to reduce the temperature rise of the coil. Simple wind and fluid circulation cannot reduce the temperature. When the outside temperature rises, this method has greater disadvantages. Therefore, a device that can quickly reduce the temperature of the dry-type transformer inside the electric box by actively cooling is needed. Utility Model Content
[0004] The main purpose of the utility model is to provide a heat dissipation electric box for a dry-type transformer, which solves the problem of low heat dissipation efficiency of traditional electric boxes.
[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a heat dissipation electric box for a dry-type transformer, comprising an electric box, a heat dissipation component is arranged on the top of the electric box, side wind cavities are arranged on both sides of the inside of the electric box, and a movable side flap is arranged on one side of the side wind cavity;
[0006] The heat dissipation component includes a refrigeration device and a cooling chamber, and the refrigeration device is used for cooling and circulating condensate.
[0007] In the preferred embodiment, the electric box includes a box body and a box door. A bracket is provided at the bottom of the box body, a dry-type transformer is provided above the bracket, and a filter is provided between the side air chamber and the dry-type transformer.
[0008] In a preferred embodiment, the filter screen is made of ferritic stainless steel mesh.
[0009] In the preferred embodiment, electric cylinders are symmetrically arranged on both sides of the box body, and the output ends of the electric cylinders are connected to connecting rods, which are movably connected to the upper ends of the side flaps.
[0010] In the preferred embodiment, a condenser is provided above the cooling chamber, and the condenser runs through the cooling chamber from both sides to the inside. A ventilation plate is provided inside the cooling chamber, and the condenser is connected to the ventilation plate, and a plurality of penetrating air holes are provided on the ventilation plate.
[0011] In a preferred embodiment, a cavity is provided in the ventilation plate, and condensate can flow in the ventilation plate.
[0012] In a preferred embodiment, a first fan is provided at one end of the cooling chamber, and a second fan is provided at the other end.
[0013] In the preferred embodiment, when the side flap is opened, the interior of the electrical box is connected to the outside air.
[0014] The utility model provides a heat dissipation electric box for a dry-type transformer, which has the following beneficial effects: the heat dissipation electric box can actively dissipate heat through the heat dissipation component on its top, and openable and closable side flaps are provided on both sides of the electric box for rapid heat dissipation. The rapid heat dissipation design can effectively reduce the heat generated by the transformer during operation, thereby maintaining its stable operating temperature, helping to extend the service life of the transformer and improve the reliability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments:
[0016] Figure 1 It is an axonometric view of the heat dissipation electric box of the utility model;
[0017] Figure 2 It is a cross-sectional view of the heat dissipation electric box of the utility model;
[0018] Figure 3 It is a partial view of the heat dissipation component of the utility model;
[0019] Figure 4 It is an axonometric view of the cooling chamber of the utility model.
[0020] In the figure: electrical box 1; box body 101; side flap 102; box door 103; bracket 104; side air chamber 105; electric cylinder 106; connecting rod 107; filter 108; heat dissipation component 2; cooling chamber 201; first fan 202; refrigeration device 203; condenser 204; ventilation plate 205; second fan 206; box body air hole 207; air hole 208; dry-type transformer 3. DETAILED DESCRIPTION
[0021] Example 1
[0022] like Figure 1-4 As shown, a heat dissipation electric box for a dry-type transformer comprises an electric box 1, a heat dissipation assembly 2 is arranged above the electric box 1, side wind cavities 105 are arranged on both sides of the inside of the electric box 1, and a movable side flap 102 is arranged on one side of the side wind cavity 105;
[0023] The heat dissipation assembly 2 includes a refrigeration device 203 and a cooling chamber 201 . The refrigeration device 203 is used for refrigerating and circulating condensate.
[0024] In the preferred embodiment, the electric box 1 includes a box body 101 and a box door 103 . A bracket 104 is provided at the bottom of the box body 101 . A dry-type transformer 3 is provided above the bracket 104 . A filter 108 is also provided between the side air chamber 105 and the dry-type transformer 3 .
[0025] In a preferred embodiment, the filter screen 108 is made of ferritic stainless steel mesh.
[0026] In the preferred embodiment, electric cylinders 106 are symmetrically provided on both sides of the box body 101 , and the output ends of the electric cylinders 106 are connected to connecting rods 107 , and the connecting rods 107 are movably connected to the upper ends of the side flaps 102 .
[0027] In the preferred embodiment, a condenser 204 is provided above the cooling chamber 201, and the condenser 204 penetrates from both sides of the cooling chamber 201 to the inside. A ventilation plate 205 is provided inside the cooling chamber 201, and the condenser 204 is connected to the ventilation plate 205, and a plurality of penetrating air holes 208 are provided on the ventilation plate 205.
[0028] In a preferred embodiment, a cavity is provided in the ventilation plate 205 , and condensate can flow in the ventilation plate 205 .
[0029] In a preferred embodiment, a first fan 202 is provided at one end of the cooling chamber 201, and a second fan 206 is provided at the other end.
[0030] In the preferred embodiment, when the side flap 102 is opened, the interior of the electrical box 1 is connected to the outside air.
[0031] The working principle of a heat dissipation electrical box for a dry-type transformer is as follows: a dry-type transformer 3 is installed on a bracket 104 inside a box 101, temperature sensors are arranged inside and outside the transformer winding and at the box air holes 207 on both sides of the box, the temperature sensors are electrically connected to the main control module, and the dry-type transformer 3 is operated normally after the box door 103 is closed.
[0032] During operation, the temperature sensor detects the internal and external temperatures of the winding. When the temperature exceeds the set threshold, the refrigeration device 203, the first fan 202 and the second fan 206 start to operate, and the circulation pump in the refrigeration device 203 starts to pump out the condensate into the condenser tube 204, and further into the ventilation plate 205. Finally, the condensate returns to the refrigeration device 203. The first fan 202 draws the hot air inside the box 101 through the box air holes and sends it into the cooling chamber 201. The wind passes through the air holes 208 on the layers of ventilation plates 205 and is finally sent back into the box 101 through the second fan 206. The wind is cooled when passing through the ventilation plates 205, completing active cooling.
[0033] When the outside temperature is low, the side flaps 102 on both sides of the box can be opened, and only the first fan 202 and the second fan 206 are operated to exchange the external airflow with the airflow inside the box 101 to enter the energy-saving mode.
[0034] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.
Claims
1. A heat dissipation box for a dry-type transformer, characterized in that: It comprises an electric box (1), a heat dissipation assembly (2) is provided above the electric box (1), side wind cavities (105) are provided on both sides of the interior of the electric box (1), and a movable side flap (102) is provided on one side of the side wind cavity (105); The heat dissipation component (2) comprises a refrigeration device (203) and a temperature reduction chamber (201); the refrigeration device (203) is used for refrigerating and circulating condensate.
2. According to claim 1, a heat dissipation box for a dry-type transformer is characterized in that: The electric box (1) comprises a box body (101) and a box door (103); a bracket (104) is provided at the bottom of the box body (101); a dry-type transformer (3) is provided above the bracket (104); and a filter screen (108) is provided between the side air chamber (105) and the dry-type transformer (3).
3. According to claim 2, a heat dissipation box for a dry-type transformer is characterized in that: The material of the filter screen (108) is a ferritic stainless steel mesh.
4. According to claim 2, a heat dissipation box for a dry-type transformer is characterized in that: Electric cylinders (106) are symmetrically arranged on both sides of the box body (101); the output ends of the electric cylinders (106) are connected to connecting rods (107); and the connecting rods (107) are movably connected to the upper ends of the side flaps (102).
5. According to claim 1, a heat dissipation box for a dry-type transformer is characterized in that: A condensing pipe (204) is provided above the cavity (201), and the condensing pipe (204) penetrates from both sides of the cooling cavity (201) to the interior, and a ventilation plate (205) is provided inside the cooling cavity (201), the condensing pipe (204) is connected to the ventilation plate (205), and a plurality of penetrating air holes (208) are provided on the ventilation plate (205).
6. The heat dissipation box for a dry-type transformer according to claim 5, characterized in that: A cavity is provided in the ventilation plate (205), and condensate can flow in the ventilation plate (205).
7. The heat dissipation box for a dry-type transformer according to claim 1 is characterized by: A first fan (202) is provided at one end of the cooling chamber (201), and a second fan (206) is provided at the other end.
8. The heat dissipation box for a dry-type transformer according to claim 1, characterized in that: When the side flap (102) is opened, the interior of the electrical box (1) is connected to the outside air.