Heat dissipation stay

Abstract

The utility model relates to the technical field of supporting strips, in particular to a heat dissipation supporting strip, the supporting strips are arranged at four corners of an iron core, the long sides of the supporting strips are parallel to the long sides of the iron core, each supporting strip comprises an inner side wall and an outer side wall, the inner side walls abut against the outer wall of the iron core, the outer side walls are provided with first fins, the first fins comprise first fin strips, the first fin strips are fixed on the outer side walls, and the first fin strips are fixed on the outer side walls. The long sides of the first fin strips are parallel to the long side of the iron core, the multiple first fin strips are distributed along the outer side wall, the coils are wound around the outer sides of the four first fins, the supporting strips and the iron core are fixed in the coils, and the heat dissipation effect between the coils and the iron core can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of stays, and in particular to heat dissipating stays. Background Art

[0002] A reactor is an electrical device used in AC circuits. Its main function is to limit the flow of current, especially to suppress surge current and short-circuit current in the circuit. It is widely used in circuits. Because of the effect of electromagnetic induction, there is a certain inductance in the circuit, which can prevent the change of current. When a conductor is energized, it will generate a magnetic field in a certain space it occupies, so all current-carrying conductors have inductance in a general sense. However, the inductance of a long straight conductor with electricity is small, and the magnetic field generated is not strong. Therefore, the actual reactor is a coil formed by winding the wire into a solenoid form. In order to make the coil have a larger inductance, an iron core is inserted into the coil.

[0003] The coil is wrapped around the outer wall of the iron core. When the electrical equipment is running, both the coil and the iron core will generate heat. In order to reduce equipment damage or even fire caused by excessive heat, a support bar is provided between the coil and the iron core, so that there is a gap between the coil and the iron core, increasing the air duct between the two and producing a heat dissipation effect.

[0004] At present, the support bar is an "L"-shaped bar, and there are four support bars. The four support bars are set at the four corners of the iron core. The inner wall of the support bar is in contact with the outer wall of the iron core, and the outer wall of the support bar is in contact with the inner wall of the coil. The heat dissipation at the contact points between the support bar and the coil and the contact points between the support bar and the iron core is poor. Summary of the invention

[0005] In order to improve the heat dissipation effect between the coil and the iron core, the present application provides a heat dissipation support bar.

[0006] The heat dissipation support provided in this application adopts the following technical solution:

[0007] A heat dissipation support bar, wherein the support bar is arranged at the four corners of the core, wherein the long side of the support bar is parallel to the long side of the core, wherein the support bar comprises an inner wall and an outer wall, wherein the inner wall is in contact with the outer wall of the core, wherein the outer wall is provided with a first fin, wherein the first fin comprises a first fin bar, wherein the first fin bar is fixed to the outer wall, wherein the long side of the first fin bar is parallel to the long side of the core, wherein there are a plurality of the first fin bars, and the plurality of the first fin bars are distributed along the outer wall, and a coil is wound along the outer side of the four first fins, wherein the coil fixes the support bar and the core inside.

[0008] By adopting the above technical solution, a flow groove is formed between the coil and the iron core under the action of the support bar. When the coil and the iron core are in working state, the heat generated by the coil and the iron core can be dissipated from the flow groove, thereby reducing the damage to equipment or even fire caused by excessive heat. The heat of the coil and the iron core is transferred to the support bar and the first fin. Under the action of the first fin, the surface area of ​​heat dissipation is increased, so that the contact between the air and the heat source is more complete, thereby improving the heat exchange efficiency, accelerating the transfer of heat, and further improving the heat dissipation effect between the coil and the iron core.

[0009] Preferably, the first wing bar is an isosceles trapezoidal bar, and the width of the first wing bar at one end close to the outer side wall is greater than the width of the first wing bar at one end away from the outer side wall.

[0010] By adopting the above technical solution, the width of the first wing-bar near one end of the outer wall is greater than the width of the first wing-bar away from the outer wall, which can increase the connection area with the support bar and improve the connection stability between the first wing-bar and the support bar. At the same time, the force-bearing area between the first wing-bar and the support bar can be increased, and the center of gravity of the first wing-bar can be lowered, so that when the first wing-bar is subjected to force, the situation of the first wing-bar falling off from the support bar can be reduced. In addition, the isosceles trapezoidal bars can utilize space more effectively and provide a larger heat dissipation area within a limited space.

[0011] Preferably, the outer side of the first fin is an arc surface.

[0012] By adopting the above technical solution, the outer side of the first fin is an arc surface, so that the surface of the coil wound on the first fin is smoother, and the corners of the first fin can reduce the possibility of damaging the coil, thereby increasing the service life of the coil and reducing the maintenance cost of the coil.

[0013] Preferably, the support bar is an aluminum material bar.

[0014] By adopting the above technical solution, the support bar is an aluminum material bar. Aluminum has high thermal conductivity and can quickly transfer heat from the heat source to the surrounding environment. Aluminum has a low density and is lighter than other materials such as copper or iron. Aluminum is relatively cheap and can reduce production costs compared to other materials with high thermal conductivity (such as copper). In addition, aluminum has good corrosion resistance and can maintain performance even in a humid environment, reducing maintenance costs.

[0015] Preferably, the inner side wall is a right-angled surface, and the inner side wall abuts against two adjacent sides of the iron core.

[0016] By adopting the above technical solution, the inner side wall is a right-angled surface, and the inner side wall is in contact with the adjacent two sides of the iron core, so that the support bar can limit the two sides of the iron core. The adjacent two sides of the iron core are perpendicular to each other. Therefore, the inner side wall is a right-angled surface that can better fit the iron core. The two support bars located in the same vertical direction can limit the upper and lower positions of one end of the iron core, and the other two support bars in the same vertical direction can limit the downward position of the other end of the iron core. Correspondingly, the two support bars located in the same horizontal direction can limit the horizontal direction of the iron core, so that the iron core is located in the cavity formed between the four support bars, thereby reducing the shaking and instability between the support bars and the iron core.

[0017] Preferably, the support bar includes a top wall, the top wall is arranged between the inner wall and the outer wall, the top wall is located at the top of the inner wall, the long side of the top wall is parallel to the long side of the core, and the top wall is provided with a second fin.

[0018] By adopting the above technical solution, under the action of the second fin, the heat dissipation surface area can be further increased, and the air flow distribution can be further optimized, thereby further improving the heat dissipation effect between the coil and the iron core.

[0019] Preferably, the support bar further includes a bottom wall, the bottom wall is arranged between the inner wall and the outer wall, the bottom wall is located at the bottom of the inner wall, the long side of the bottom wall is parallel to the long side of the core, and the bottom wall is provided with a third fin.

[0020] By adopting the above technical solution, under the action of the third fin, the heat dissipation surface area can be further increased, and the air flow distribution can be further optimized, thereby further improving the heat dissipation effect between the coil and the iron core.

[0021] Preferably, a ventilation slot is provided between two adjacent first wing bars, the ventilation slot is an isosceles trapezoidal slot, and the width of the ventilation slot at an outer end is greater than the width of the ventilation slot at an inner end.

[0022] By adopting the above technical solution, under the action of the ventilation grooves, the air flow distribution can be optimized, the resistance of air flow can be reduced, and the heat dissipation effect between the coil and the iron core can be further improved. The opening of the isosceles trapezoidal groove is larger, so that the air circulation rate is faster.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. Under the action of the support bar, a flow groove is formed between the coil and the iron core. When the coil and the iron core are in working state, the heat generated by the coil and the iron core can be dissipated from the flow groove, reducing the damage to the equipment or even fire caused by excessive heat. The heat of the coil and the iron core is transferred to the support bar and the first fin. Under the action of the first fin, the surface area of ​​heat dissipation is increased, so that the contact between the air and the heat source is more complete, thereby improving the heat exchange efficiency, accelerating the transfer of heat, and further improving the heat dissipation effect between the coil and the iron core.

[0025] 2. The width of the first wing-bar at one end close to the outer wall is greater than the width of the first wing-bar at one end away from the outer wall, which can increase the connection area with the support bar and improve the connection stability between the first wing-bar and the support bar. At the same time, it can increase the force-bearing area between the first wing-bar and the support bar, and can also lower the center of gravity of the first wing-bar, so that when the first wing-bar is subjected to force, the possibility of the first wing-bar falling off from the support bar can be reduced. In addition, the isosceles trapezoidal bars can utilize space more effectively and provide a larger heat dissipation area in a limited space. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0027] Explanation of the accompanying drawings: 1. Iron core; 2. Support bar; 21. Inner wall; 22. Outer wall; 23. Bottom wall; 24. Top wall; 25. Circulation slot; 26. Heat dissipation slot; 3. First fin; 31. First fin strip; 32. Ventilation slot; 4. Second fin; 41. Second fin strip; 5. Third fin; 51. Third fin strip; 6. Coil. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1 . Provide further details of this application.

[0029] The embodiments of the present application disclose heat dissipation support bars.

[0030] Reference Figure 1 , heat dissipation struts, including an iron core 1. In the embodiment of the present application, the iron core 1 is a rectangular structure, and a strut 2 is arranged on the outer wall of the iron core 1. The long side of the strut 2 is parallel to the long side of the iron core 1. There are four struts 2, and the four struts 2 are distributed at the four corners of the iron core 1. The openings of two adjacent struts 2 are arranged opposite to each other, and the four struts 2 confine the iron core 1 inside.

[0031] The support bar 2 includes an inner wall 21, an outer wall 22, a bottom wall 23 and a top wall 24. The inner wall 21 is a right-angled surface, and the inner wall 21 abuts against the adjacent two sides of the core 1, so that the support bar 2 can limit the two sides of the core 1. The adjacent two sides of the core 1 are perpendicular. Therefore, the inner wall 21 is a right-angled surface and can better fit the core 1. The two support bars 2 located in the same vertical direction can limit the upper and lower positions of one end of the core 1, and the other two support bars 2 in the same vertical direction limit the downward position of the other end of the core 1. Correspondingly, the two support bars 2 located in the same horizontal direction can limit the horizontal direction of the core 1, so that the core 1 is located in the cavity formed between the four support bars 2, thereby reducing the shaking and instability between the support bars 2 and the core 1.

[0032] The top wall 24 is arranged between the inner wall 21 and the outer wall 22, the top wall 24 is located at the top of the inner wall 21, and the long side of the top wall 24 is parallel to the long side of the iron core 1. The bottom wall 23 is arranged between the inner wall 21 and the outer wall 22, the bottom wall 23 is located at the bottom of the inner wall 21, and the long side of the bottom wall 23 is parallel to the long side of the iron core 1.

[0033] Reference Figure 1 The outer wall 22 is provided with a first fin 3, and the first fin 3 includes a first fin strip 31. The first fin strip 31 is fixed to the outer wall 22, and the long side of the first fin strip 31 is parallel to the long side of the iron core 1. In the embodiment of the present application, the first fin strip 31 is an isosceles trapezoidal strip, and the width of the first fin strip 31 at one end close to the outer wall 22 is greater than the width of the first fin strip 31 at one end away from the outer wall 22, which can increase the connection area with the strut 2 and improve the connection stability between the first fin strip 31 and the strut 2. At the same time, the force-bearing area between the first fin strip 31 and the strut 2 can be increased, and the center of gravity of the first fin strip 31 can be lowered, so that when the first fin strip 31 is subjected to a force, the situation of the first fin strip 31 falling off from the strut 2 can be reduced. There are multiple first fin strips 31, and the multiple first fin strips 31 are evenly distributed along the outer wall 22.

[0034] A coil 6 is wound along the outside of the four first fins 3, and the coil 6 fixes the support bar 2 and the iron core 1 inside. Under the action of the support bar 2, a flow groove 25 is formed between the coil 6 and the iron core 1. When the coil 6 and the iron core 1 are in working state, the heat generated by the coil 6 and the iron core 1 can be dissipated from the flow groove 25, thereby reducing the damage to the equipment or even the fire caused by excessive heat.

[0035] A ventilation groove 32 is arranged between two adjacent first fins 31. The ventilation groove 32 is an isosceles trapezoidal groove. The width of the ventilation groove 32 at the outer end is greater than the width of the ventilation groove 32 at the inner end. The heat of the coil 6 and the iron core 1 is transferred to the support bar 2 and the first fin 3. Under the action of the first fin 3, the surface area of ​​heat dissipation is increased, so that the contact between the air and the heat source is more complete, thereby improving the heat exchange efficiency and accelerating the heat transfer. Under the action of the ventilation groove 32, the airflow distribution can be optimized, the resistance of air flow can be reduced, and the heat dissipation effect between the coil 6 and the iron core 1 can be further improved.

[0036] The support bar 2 and the first fin 3 are both made of aluminum material. Aluminum has high thermal conductivity and can quickly transfer heat from the heat source to the surrounding environment. Aluminum has a low density and is lighter than the support bar 2 made of other materials such as copper or iron. Aluminum is relatively cheap and can reduce production costs compared to other materials with high thermal conductivity (such as copper). In addition, aluminum has good corrosion resistance and can maintain performance even in a humid environment, reducing maintenance costs.

[0037] Reference Figure 1 The outer side of the first fin 3 is an arc surface, so that the surface of the coil 6 wound on the first fin 3 is relatively smooth, reducing the situation where the edges and corners of the first fin 3 damage the coil 6, thereby increasing the service life of the coil 6 and reducing the maintenance cost of the coil 6.

[0038] The top wall 24 is provided with a second fin 4, the second fin 4 includes a second fin 41, the second fin 41 is fixed to the top wall 24, the long side of the second fin 41 is parallel to the long side of the iron core 1, there are multiple second fins 41, and the multiple second fins 41 are evenly distributed along the wide side of the top wall 24, and the bottom wall 23 is provided with a third fin 5, the third fin 5 includes a third fin 51, the third fin 51 is fixed to the bottom wall 23, the long side of the third fin 51 is parallel to the long side of the iron core 1, there are multiple third fins 51, and the multiple third fins 51 are evenly distributed along the wide side of the bottom wall 23. The structure of the second fin 41 and the third fin 51 is consistent with the structure of the first fin 31, and will not be described in detail in the embodiment of the present application.

[0039] Under the action of the second fin 4 and the third fin 5 , the heat dissipation surface area can be further increased, and the air flow distribution can be further optimized, thereby further improving the heat dissipation effect between the coil 6 and the iron core 1 .

[0040] A heat dissipation groove 26 is provided inside the support bar 2, and the long side of the heat dissipation groove 26 is consistent with the long side of the support bar 2. There are multiple heat dissipation grooves 26, and the multiple heat dissipation grooves 26 are distributed along the outside of the inner wall 21. Under the action of the heat dissipation grooves 26, the weight of the support bar 2 can be reduced, and the material for making the support bar 2 is saved. At the same time, air can flow through the heat dissipation grooves 26, and the circulation of air can take away the heat in the support bar 2, so that the heat dissipation grooves 26 can further play a heat dissipation effect.

[0041] The above are all preferred embodiments of the present application. The embodiments are only explanations of the present application and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A heat dissipating stay, characterized in that: The support bar (2) is arranged at the four corners of the iron core (1), the long side of the support bar (2) is parallel to the long side of the iron core (1), the support bar (2) includes an inner wall (21) and an outer wall (22), the inner wall (21) is in contact with the outer wall of the iron core (1), the outer wall (22) is provided with a first fin (3), the first fin (3) includes a first fin strip (31), the first fin strip (31) is fixed to the outer wall (22), the long side of the first fin strip (31) is parallel to the long side of the iron core (1), there are a plurality of the first fin strips (31), and the plurality of the first fin strips (31) are distributed along the outer wall (22), a coil (6) is wound along the outer side of the four first fins (3), and the coil (6) fixes the support bar (2) and the iron core (1) inside.

2. The heat dissipating stay according to claim 1, characterized in that: The first fin strip (31) is an isosceles trapezoidal strip, and the width of the first fin strip (31) at one end close to the outer side wall (22) is greater than the width of the first fin strip (31) at one end away from the outer side wall (22).

3. The heat dissipating stay according to claim 1, characterized in that: The outer side of the first fin (3) is an arc surface.

4. The heat dissipating stay according to claim 1, characterized in that: The support bar (2) is a bar made of aluminum material.

5. The heat dissipating stay according to claim 1, characterized in that: The inner side wall (21) is a right-angled surface, and the inner side wall (21) abuts against two adjacent sides of the iron core (1).

6. The heat dissipating stay according to claim 1, characterized in that: The support bar (2) comprises a top wall (24), the top wall (24) is arranged between the inner wall (21) and the outer wall (22), the top wall (24) is located at the top of the inner wall (21), the long side of the top wall (24) is parallel to the long side of the iron core (1), and the top wall (24) is provided with a second fin (4).

7. The heat dissipating stay according to claim 1, characterized in that: The support bar (2) further comprises a bottom wall (23), wherein the bottom wall (23) is arranged between the inner wall (21) and the outer wall (22), the bottom wall (23) is located at the bottom of the inner wall (21), the long side of the bottom wall (23) is parallel to the long side of the iron core (1), and the bottom wall (23) is provided with a third fin (5).

8. The heat dissipating stay according to claim 1, characterized in that: A ventilation slot (32) is provided between two adjacent first wing bars (31), the ventilation slot (32) being an isosceles trapezoidal slot, and the width of the ventilation slot (32) at the outer end is greater than the width of the ventilation slot (32) at the inner end.

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