Split type heat dissipation fin dry-type transformer rectifier shell
By combining a split heat dissipation fin design with a dust removal mechanism, the problems of air turbulence and dust accumulation caused by planar fins in existing heat dissipation technologies are solved, achieving a more efficient heat dissipation effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI DELIZHONGLIAN ENERGY TECHNOLOGY CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-06-16
AI Technical Summary
When existing dry-type transformer shells use planar fins for heat dissipation, air turbulence reduces the convective heat transfer coefficient, and dust accumulation forms a heat insulation layer, affecting the heat dissipation effect.
It adopts a split heat dissipation fin design, combined with a wave-shaped structure and a baffle plate to enhance air turbulence, and uses an air jet pipe and nozzle to clean dust through a dust removal mechanism.
It increases the heat dissipation area and air contact time, enhancing the heat dissipation effect, while effectively removing dust from the fin surface, further improving heat dissipation performance.
Smart Images

Figure CN224366636U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dry-type transformers, and more specifically, to a split-type heat sink finned dry-type transformer rectifier housing. Background Technology
[0002] Dry-type transformers are widely used in local lighting, high-rise buildings, airports, docks, CNC machinery, and other applications. Simply put, a dry-type transformer is one whose core and windings are not immersed in insulating oil. Cooling methods are divided into natural air cooling (AN) and forced air cooling (AF). With natural air cooling, the transformer can operate continuously at its rated capacity for extended periods.
[0003] Currently, most dry-type transformer housings utilize planar fins for heat dissipation. However, planar fins cause air turbulence, reducing the convective heat transfer coefficient and affecting heat dissipation. Furthermore, exposed fins are prone to dust accumulation, which forms an insulation layer that hinders heat dissipation. Therefore, inventing a split-fin dry-type transformer rectifier housing to improve these problems has become an urgent issue for those skilled in the art. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a split-type heat dissipation finned dry-type transformer rectifier housing, which aims to improve the current dry-type transformer housing, which mostly uses planar fins for heat dissipation. Planar fins cause air turbulence, reduce the convective heat transfer coefficient, and affect the heat dissipation effect. Moreover, the heat dissipation fins are exposed to the outside and are prone to dust accumulation. The dust accumulation on the fins forms a heat insulation layer, which also affects heat dissipation.
[0005] This utility model is implemented as follows:
[0006] This utility model provides a split-type heat dissipation finned dry-type transformer rectifier housing, including a housing and a dry-type transformer disposed within the housing. The front and rear side walls of the housing are provided with multiple sets of heat dissipation fins. The side walls of the heat dissipation fins are provided with two sets of openings. Between each pair of heat dissipation fins, there are two sets of first guide plates that cooperate with the openings. The model also includes a dust cleaning mechanism: the dust cleaning mechanism is disposed on the outside of the housing and is capable of cleaning dust from the surface of the heat dissipation fins.
[0007] Preferably, the first guide vanes are all inclined, and a second guide vane is provided at one end of the first guide vane, the second guide vane being arc-shaped.
[0008] Preferably, the heat dissipation fins are arranged in a wavy shape, and the opening is located in the recess of the heat dissipation fins.
[0009] Preferably, the dust removal mechanism includes jet pipes provided on both the front and rear sides of the housing, multiple sets of jet nozzles provided on the outer walls of both sets of jet pipes, a fixed pipe provided at one end of each set of jet pipes, a telescopic pipe connected between the two sets of fixed pipes, an air inlet pipe provided on the outer wall of the telescopic pipe, two sets of fixed blocks provided on the outer wall of the housing, an electric telescopic rod provided on the side wall of each set of fixed blocks, and one end of the electric telescopic rod connected to the side wall of the fixed pipe.
[0010] Preferably, the jet nozzle is arranged at an angle, and the telescopic tube is a corrugated hose.
[0011] The beneficial effects of this utility model are:
[0012] This invention increases the heat dissipation area by 20% and enhances turbulence by setting wavy heat dissipation fins. At the same time, with the cooperation of the inlet, the first guide plate and the second guide plate, the air flow is guided, dead zones are eliminated, and the air is fully in contact with the surface of the heat dissipation fins, thus improving the heat dissipation effect. In addition, with the help of the dust removal mechanism, the dust on the surface of the heat dissipation fins can be cleaned, further improving the heat dissipation effect. Attached Figure Description
[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a utility model Figure 1 Enlarged view of the structure at point A in the middle;
[0016] Figure 3 This is a schematic diagram of the dust removal mechanism of this utility model.
[0017] In the diagram: 1. Shell; 2. Dust removal mechanism; 200. Jet pipe; 201. Jet nozzle; 202. Fixed pipe; 203. Telescopic pipe; 204. Inlet pipe; 205. Electric telescopic rod; 206. Fixed block; 3. Dry-type transformer; 4. Heat dissipation fins; 5. First guide plate; 6. Second guide plate; 7. Through port. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0019] Example, refer to Figures 1-3 A split-type finned dry-type transformer rectifier housing includes a housing 1 and a dry-type transformer 3 disposed within the housing 1. Multiple sets of heat dissipation fins 4 are provided on the front and rear side walls of the housing 1. Two sets of openings 7 are provided on the side walls of the heat dissipation fins 4. Two sets of first guide plates 5 that cooperate with the openings 7 are provided between each pair of heat dissipation fins 4. The housing also includes a dust cleaning mechanism 2: the dust cleaning mechanism 2 is disposed on the outside of the housing 1 and can clean the dust on the surface of the heat dissipation fins 4.
[0020] The first guide plates 5 are all inclined, and a second guide plate 6 is provided at one end of the first guide plate 5. The second guide plate 6 is arc-shaped, the heat dissipation fins 4 are wavy, and the opening 7 is provided in the recess of the heat dissipation fins 4.
[0021] It should be noted that: the inlet 7 guides the air to form a vortex, the first guide plate 5 guides the airflow to closely adhere to the fin surface, and the arc surface of the second guide plate 6 generates a low-pressure zone to accelerate the airflow, thereby increasing the contact time between the air and the heat dissipation fins 4, thus improving the heat dissipation effect.
[0022] The dust removal mechanism 2 includes jet pipes 200 provided on both the front and rear sides of the housing 1. Multiple jet nozzles 201 are provided on the outer walls of both sets of jet pipes 200. A fixed pipe 202 is provided at one end of each set of jet pipes 200. A telescopic pipe 203 is connected between the two sets of fixed pipes 202. An air inlet pipe 204 is provided on the outer wall of the telescopic pipe 203. Two sets of fixing blocks 206 are provided on the outer wall of the housing 1. An electric telescopic rod 205 is provided on the side wall of each set of fixing blocks 206. One end of the electric telescopic rod 205 is connected to the side wall of the fixed pipe 202.
[0023] The nozzle 201 is set at an angle, and the telescopic tube 203 is a corrugated hose.
[0024] It should be noted that the telescopic tube 203 enables the fixed tube 202 to move, the axis of the jet nozzle 201 forms a 45° angle with the horizontal plane, and the jet direction points to the lowest point of the trough of the heat dissipation fins 4.
[0025] Working principle: The heat dissipation fins 4 can dissipate the heat generated by the dry-type transformer. Air blows over the heat dissipation fins 4 to dissipate heat. The inlet 7 guides the air to form a vortex. The first guide plate 5 guides the airflow to stick to the surface of the fins. The arc surface of the second guide plate 6 generates a low-pressure zone to accelerate the airflow, thereby increasing the contact time between the air and the heat dissipation fins 4 and improving the heat dissipation effect. The electric telescopic rod 205 drives the fixed pipe 202 and the jet pipe 201 to move. After the jet pipe 201 moves to the designated position, the air pump draws air from the air inlet pipe 204 and the telescopic pipe 203 into the jet pipe 200, and then sprays it out from the jet nozzle 201. The sprayed gas can clean the dust on the surface of the heat dissipation fins 4.
[0026] It should be noted that the specific model and specifications of the motor need to be selected and determined based on the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail here.
[0027] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A split-type heat-dissipating finned dry-type transformer rectifier housing, comprising a housing (1) and a dry-type transformer (3) disposed within the housing (1), characterized in that, The shell (1) has multiple sets of heat dissipation fins (4) on both the front and rear side walls. The side walls of the heat dissipation fins (4) have two sets of openings (7). Between each pair of heat dissipation fins (4) are two sets of first guide plates (5) that cooperate with the openings (7). The shell also includes: Dust removal mechanism (2): The dust removal mechanism (2) is located on the outside of the housing (1) and can clean the dust on the surface of the heat dissipation fins (4).
2. The split-type heat sink finned dry-type transformer rectifier housing according to claim 1, characterized in that, The first guide plate (5) is inclined, and a second guide plate (6) is provided at one end of the first guide plate (5). The second guide plate (6) is arc-shaped.
3. The split-type heat sink finned dry-type transformer rectifier housing according to claim 1, characterized in that, The heat dissipation fins (4) are arranged in a wavy shape, and the opening (7) is located in the recess of the heat dissipation fins (4).
4. The split-type heat sink finned dry-type transformer rectifier housing according to claim 1, characterized in that, The dust removal mechanism (2) includes jet pipes (200) provided on both the front and rear sides of the housing (1). Multiple jet nozzles (201) are provided on the outer side walls of both sets of jet pipes (200). A fixed pipe (202) is provided at one end of each set of jet pipes (200). A telescopic pipe (203) is connected between the two sets of fixed pipes (202). An air inlet pipe (204) is provided on the outer side wall of the telescopic pipe (203). Two sets of fixed blocks (206) are provided on the outer side wall of the housing (1). An electric telescopic rod (205) is provided on the side wall of each set of fixed blocks (206). One end of the electric telescopic rod (205) is connected to the side wall of the fixed pipe (202).
5. The split-type heat sink finned dry-type transformer rectifier housing according to claim 4, characterized in that, The jet nozzle (201) is arranged at an angle, and the telescopic tube (203) is a corrugated hose.