Inductor with guard structure

Abstract

The application provides an inductor with a protection structure and relates to the technical field of inductors.The inductor comprises a shell, an iron core, a first coil, a second coil, an insulation strip, a third coil, an air exchange mechanism and a pressing mechanism, the iron core is vertically installed in the shell, the first coil is wound around the outer periphery of the iron core, the second coil is wound above the middle part of the first coil, the third coil is wound below the middle part of the first coil, the second coil and the third coil are separated by the insulation strip and are distributed in a staggered manner, and thus the performance of the inductor can be improved; the air exchange mechanism is used for discharging heat in the shell, the pressing mechanism is installed on the air exchange mechanism and is connected with the insulation strip; when the air exchange mechanism operates, the pressing mechanism applies an upward pushing force to the second coil and a downward pushing force to the third coil, so that the two coils are kept stable in the vertical direction and do not interfere with each other, and the heat dissipation and the winding stability of the inductor are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of inductors, in particular to an inductor with a protection structure. BACKGROUND

[0002] At present, an inductor is a circuit element which generates electromotive force due to the change of the current passing through it, thereby resisting the change of the current. The structure of the inductor is similar to that of a transformer, and generally comprises a framework, a winding, a shielding cover, a packaging material, a magnetic core or an iron core, etc. If the inductor is in a state without current passing through it, when the circuit is turned on, it will try to resist the current flowing through it; if the inductor is in a state with current passing through it, when the circuit is turned off, it will try to maintain the current unchanged.

[0003] In the related art, the inductor is often improved in performance in the direction of increasing inductance, energy storage capacity, filtering performance and anti-interference ability. However, after the above performance is improved, the inductor is accompanied by increased heat generation and reduced service life. Therefore, how to improve the performance of the inductor while effectively improving the heat generation problem of the inductor and improving the service life has become a technical problem to be solved for the inductor at present. SUMMARY

[0004] The present application discloses an inductor with a protection structure to solve the technical problems of the inductor in the related art.

[0005] The present application provides an inductor with a protection structure, which adopts the following technical scheme:

[0006] An inductor with a protection structure comprises an outer shell, an iron core and a first coil, the iron core is vertically installed in the outer shell, and the first coil is wound around the outer periphery of the iron core; further comprising a second coil wound around the outer periphery above the middle part of the first coil; an insulation strip adhered to the outer wall below the middle part of the first coil along the axial direction of the first coil, and the thickness of the insulation strip is the same as the outer diameter of the wire of the second coil;

[0007] a third coil wound around the outer periphery below the middle part of the first coil and adhered to the insulation strip, the second coil and the third coil are distributed in a staggered manner on the outer periphery of the first coil under the action of the insulation strip; an air exchange mechanism installed on the outer shell for discharging heat in the outer shell to the outside; a pressing mechanism installed on the air exchange mechanism, one end of the insulation strip is connected to the pressing mechanism, and one part of the pressing mechanism abuts against the lower end of the second coil and the other part of the pressing mechanism abuts against the upper end of the third coil; wherein, when the air exchange mechanism operates, one part of the pressing mechanism is affected by the air exchange mechanism to apply an upward pushing force to the second coil, and the other part of the pressing mechanism is affected by the air exchange mechanism to apply a downward pushing force to the third coil, so that the second coil and the third coil do not interfere with each other in the vertical direction.

[0008] Preferably, the sum of the number of turns of the second coil and the third coil is less than the total number of turns of the first coil.

[0009] Preferably, the air exchange mechanism comprises a blower, a heat exchange pipe and a fixing frame, wherein the blower is arranged at one side of the shell; the heat exchange pipe comprises a curved pipe section and a vertical pipe section, the curved pipe section is arranged at the air suction end of the blower, and the end of the curved pipe section away from the blower extends horizontally into the shell and then bends upward in an arc shape and then vertically upward; the vertical pipe section is vertically connected to the upper end of the curved pipe section inside the shell; one end of the fixing frame is connected to the inner wall of the shell and the other end is connected to the outer wall of the vertical pipe section to limit the position of the vertical pipe section.

[0010] Preferably, the pressing mechanism comprises a connecting plate, a first pressing assembly and a second pressing assembly, wherein one end of the connecting plate is connected to the outer wall of the vertical pipe section and the other end extends horizontally to a position close to the middle of the first coil, and the upper end of the insulation strip is connected to the end of the connecting plate after being bent in an arc shape; the first pressing assembly is rotatably arranged on the upper wall of the connecting plate, and the first pressing assembly abuts against the lower end of the second coil, when the blower is started to generate suction in the vertical pipe section, the first pressing assembly is subjected to the action of the suction force to apply an upward pushing force to the lower end of the second coil; the second pressing assembly is vertically slidably arranged on the lower wall of the connecting plate, and the second pressing assembly abuts against the upper end of the third coil, when the blower is started to generate suction in the vertical pipe section, the second pressing assembly is subjected to the action of the suction force to apply a downward pushing force to the lower end of the second coil.

[0011] Preferably, the first pressing assembly comprises a pressing rod and a hinged seat, wherein the rod body of the pressing rod is rotatably connected to the hinged seat, the rod segment part of the pressing rod located on one side of the hinged seat is configured as a windward rod segment, and the rod segment part of the pressing rod located on the other side of the hinged seat is configured as an abutting rod segment, the windward rod segment is located in the vertical pipe section, and the abutting rod segment is located outside the vertical pipe section; the hinged seat is arranged on the upper wall of the connecting plate and close to the edge of the vertical pipe section, and a part of the hinged seat is located in the vertical pipe section and the other part is located outside the vertical pipe section; the end of the abutting rod segment away from the windward rod segment extends into the gap between the second coil and the third coil, and the abutting rod segment abuts against the lower end of the second coil.

[0012] Preferably, a torsional spring is arranged at the rotatable connection between the pressing rod and the hinged seat, and the torsional spring always has a tendency to rotate the abutting rod segment upward.

[0013] Preferably, a first windward plate is arranged on the windward rod segment, and the plate surface of the first windward plate is opposite to the upper end opening of the vertical pipe section.

[0014] Preferably, the second extrusion assembly comprises a sleeve, a moving rod and an extrusion strip, wherein the sleeve is vertically arranged on the lower wall of the connecting plate, the inside of the sleeve is hollow and the lower end is open, the moving rod is slidingly arranged in the sleeve and the lower end of the moving rod extends out of the sleeve, the middle part of the extrusion strip is connected with the lower end of the moving rod perpendicularly, one part of the extrusion strip extends into the vertical pipe segment, the other part extends into the gap between the second coil and the third coil and abuts against the upper end of the third coil, the pipe wall of the vertical pipe segment is vertically provided with a sliding strip groove, the extrusion strip passes through the sliding strip groove, and the upper and lower sides of the extrusion strip are both provided with a folded organ membrane to always block the sliding strip groove when the extrusion strip moves vertically.

[0015] Preferably, a spring is connected between the inner end wall of the sleeve and the upper end wall of the moving rod, and the spring always has a tendency to push the moving rod vertically downward.

[0016] Preferably, the part of the extrusion strip in the vertical pipe segment is provided with a second windward plate, the plate surface of the second windward plate is opposite to the upper end opening of the vertical pipe segment, and the second windward plate and the first windward plate are distributed in a vertical direction.

[0017] The present application has the following advantages and beneficial effects:

[0018] The present application sets a wind changing mechanism inside the inductor, uses the suction force generated by the air blower in the vertical pipe segment to timely discharge the heat inside the inductor, so as to improve the heat dissipation effect. Meanwhile, the total number of turns of the first coil is greater than the sum of the number of turns of the second coil and the third coil, so that a certain gap is formed in the middle part of the first coil, thereby providing an additional air flow space to further enhance the heat dissipation capacity. In addition, the second coil and the third coil are distributed in a staggered manner on the outer peripheral surface of the first coil under the action of the insulation strip, which optimizes the magnetic flux distribution of the inductor to a certain extent, reduces the unit magnetic flux density and reduces the risk of local magnetic saturation, thereby improving the stability of the inductor in a large current working state. In addition, the additional number of turns of the coil enhances the self-induction effect of the inductor, improves its response capability to current changes, thereby improving the filtering performance and playing a better role in the suppression of high-frequency signal interference. Therefore, while improving the heat dissipation efficiency of the inductor, the influence of the wind changing mechanism on the normal operation of the inductor is also optimized to a certain extent, so that the internal heat can be discharged more smoothly without affecting the electromagnetic properties or stability of the inductor due to air flow turbulence or improper suction force direction. This optimized design enables the inductor to maintain a low temperature rise in a high-power and high-frequency operating environment, prolongs the service life, and at the same time is conducive to improving the reliability and working efficiency of the whole device;

[0019] The application adopts a pressing mechanism to apply stable extrusion force to the second coil and the third coil to prevent the coil from loosening when working for a long time or being subjected to external vibration. The first extrusion assembly includes an extrusion rod and a hinged seat, and a torsional spring is arranged at the hinge to enable the extrusion rod segment to apply upward pressure to the second coil when the air blower is not running, thereby improving the winding stability. When the air blower is running, the windward rod segment swings under the action of suction force, so that the extrusion rod segment further pushes the second coil upward to enhance the supporting force. Similarly, the second extrusion assembly enables the extrusion strip to apply stable downward pushing force to the third coil through the cooperation of the moving rod and the spring, so that the third coil is always in a compressed state. This structure not only provides stable support when the inductor is stationary, but also dynamically adjusts the extrusion force when running to adapt to the change of suction force, thereby improving the long-term stability of the winding.

[0020] The application solves the problem of possible excessive shielding of suction force by single windward plate by arranging a first windward plate and a second windward plate on the windward rod segment and the extrusion strip respectively, and making them staggered in the vertical direction. When the air blower is running, the suction force first acts on the first windward plate to make the windward rod segment swing rapidly, thereby driving the extrusion rod to push the second coil upward. At the same time, the second windward plate can also effectively receive the suction force to make the extrusion strip move downward, thereby further enhancing the compression effect on the third coil. In addition, the addition of the windward plate enlarges the wind power contact area and improves the response sensitivity of the assembly, so that the action of the extrusion rod and the extrusion strip is more rapid and stable, which helps the inductor to maintain good structural tightness under different working conditions and ensures the overall performance of the inductor. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0022] Figure 1 is a structural schematic diagram of the embodiment of the present application;

[0023] Figure 2 is a front view of the partial cross-section of the embodiment of the present application Figure 1 ;

[0024] Figure 3 is a front view of the partial cross-section of the embodiment of the present application Figure 2 ;

[0025] Figure 4 is an enlarged view of A in Figure 3 ;

[0026] Figure 5is a partial sectional view of the embodiment of the present application;

[0027] Figure 6 is Figure 5 is an enlarged view of B part in

[0028] is marked as:

[0029] 100, shell; 200, core; 300, first coil; 400, second coil; 500, insulation strip; 600, third coil; 700, air changing mechanism; 710, air blower; 720, heat exchange pipe; 721, curved pipe section; 722, vertical pipe section; 7221, sliding strip slot; 7222, folded accordion membrane; 730, fixing frame; 800, pressing mechanism; 810, connecting plate; 820, first extrusion assembly; 821, extrusion rod; 8211, windward rod section; 8212, abutting rod section; 8213, first windward plate; 822, hinged seat; 823, torsional spring; 830, second extrusion assembly; 831, sleeve; 832, moving rod; 833, extrusion strip; 834, spring; 835, second windward plate. DETAILED DESCRIPTION

[0030] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described in detail below. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0031] The terms "first", "second", and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally a category, and do not limit the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / ", generally indicates that the front and rear associated objects are in an "or" relationship.

[0032] Please refer to Figures 1-6 Some embodiments of the present application provide an inductor with a protection structure. In combination with Figure 1 , Figure 2 and Figure 3It comprises a shell 100, a core 200, a first coil 300, a second coil 400, an insulation strip 500, a third coil 600, an air exchange mechanism 700 and a pressing mechanism 800; wherein the core 200 is vertically installed in the shell 100, and the first coil 300 is wound around the outer periphery of the core 200 as the main induction component.

[0033] For example, the second coil 400 is wound around the outer periphery above the middle part of the first coil 300, and the third coil 600 is wound around the outer periphery below the middle part of the first coil 300. On this basis, the insulation strip 500 is attached to the outer wall below the middle part of the first coil 300 along the axial direction of the first coil 300, and the thickness of the insulation strip 500 is the same as the outer diameter of the wire of the second coil 400, so as to form the second coil 400 and the third coil 600 in staggered distribution on the outer periphery of the first coil 300. This arrangement optimizes the magnetic flux distribution of the inductor to some extent, reduces the unit magnetic flux density, reduces the risk of local magnetic saturation, and improves the stability of the inductor in the large current working state. In addition, the additional number of coil turns enhances the self-induction effect of the inductor, improves its response to current changes, improves the filtering performance, and plays a better role in suppressing high-frequency signal interference.

[0034] At the same time, in view of the heat dissipation problem that may be caused by the performance improvement of the inductor, the air exchange mechanism 700 is designed. For example, the air exchange mechanism 700 is installed on the shell 100 for discharging the heat generated by the inductor during operation from the inside of the shell 100 to the external environment. Due to the staggered distribution of the second coil 400 and the third coil 600 under the action of the insulation strip 500, a radial gap is formed between them, which can form an air flow channel when the air exchange mechanism 700 is running, so that the heat can dissipate along the radial gap direction, thereby improving the heat dissipation efficiency of the inductor and avoiding the influence of heat accumulation on the working stability of the inductor. For example, the insulation strip 500 is symmetrically provided with a group on both sides of the core 200, so that the third coil 600 can be stably wound on the same outer peripheral surface of the insulation strip 500. Further, the air exchange mechanism 700 and the pressing mechanism 800 are also symmetrically provided with a group on both sides of the core 200 corresponding to the insulation strip 500.

[0035] Furthermore, to further optimize the structural stability of the second coil 400 and the third coil 600 and improve the heat dissipation effect, the present invention provides a pressing mechanism 800. For example, this mechanism is mounted on the ventilation mechanism 700 and connected to one end of the insulating strip 500. When the ventilation mechanism 700 is activated, a portion of the pressing mechanism 800 is pushed upwards by the airflow to the lower end of the second coil 400, while another portion pushes downwards to the upper end of the third coil 600. This creates a certain fixing force between the second coil 400 and the third coil 600 in the vertical direction, which can, to a certain extent, prevent the second coil 400 and the third coil 600 from loosening due to vibration or thermal expansion and contraction during long-term use, and further ensure the existence of the radial gap in the middle, allowing it to continuously play a role in auxiliary heat dissipation.

[0036] In summary, through the combination of the above structures, this application achieves both improved inductor performance and effective reduction of temperature rise, enabling the inductor to maintain stable operation in higher power and longer operating environments. This is beneficial for extending the inductor's service life and expanding its application range in high-performance electronic equipment and power systems.

[0037] In some implementations, combined with Figure 2 , Figure 3 The sum of the number of turns of the second coil 400 and the third coil 600 is less than the total number of turns of the first coil 300. For example, the first coil 300, the second coil 400 and the third coil 600 are all made of the same material, and the outer diameter of the wires of the first coil 300, the second coil 400 and the third coil 600 are all the same.

[0038] Thus, this design optimizes the inductor structure to a certain extent, enabling the second coil 400 and the third coil 600 to maintain balanced electrical characteristics even when wound at different outer periphery positions of the first coil 300. This avoids uneven current distribution due to differences in materials or wire diameters, which could affect the overall performance of the inductor. Furthermore, since the total number of turns in the second coil 400 and the third coil 600 is less than the number of turns in the first coil 300, a portion of the first coil 300 is naturally not covered by the additional coils, providing a certain heat dissipation gap. This design allows air to pass more smoothly through the middle of the first coil 300 during the operation of the ventilation mechanism 700, improving heat conduction and convection efficiency and helping to reduce the temperature rise of the inductor. Meanwhile, since the wire specifications of the three sets of coils are consistent, this distribution of turns will not cause current distribution imbalance between different coils, nor will it cause additional losses due to local resistance changes. This allows the inductor to improve electrical characteristics such as inductance and filtering performance while minimizing the adverse effects caused by uneven heat dissipation or material mismatch, enabling it to maintain a relatively stable working state during long-term operation.

[0039] In some embodiments, in combination with Figure 1 , Figure 2 and Figure 3 , the air exchange mechanism 700 includes a blower 710, a heat exchange pipe 720, and a fixing frame 730, wherein the blower 710 is installed on one side of the shell 100 for generating air flow after starting to provide suction for the heat exchange pipe 720 to enhance the heat dissipation effect inside the inductor. The heat exchange pipe 720 is composed of a curved pipe section 721 and a vertical pipe section 722, wherein one end of the curved pipe section 721 is arranged at the air suction end of the blower 710 so that it can be used in cooperation with the air suction function of the blower 710, the other end extends horizontally to the inside of the shell 100 and then bends upward, and finally vertically upward and communicates with the vertical pipe section 722. Through such a design, the heat exchange pipe 720 can guide the heat inside the inductor along the pipe direction to the outside, achieving efficient heat transfer.

[0040] In actual operation, when the blower 710 starts, a certain negative pressure area will be generated at the air suction end of the blower 710, thereby forming a suction force inside the heat exchange pipe 720, which acts on the inside of the shell 100, so that the hot air inside the shell 100 is guided to the outside environment along the flow direction of the heat exchange pipe 720. Because the curved pipe section 721 of the heat exchange pipe 720 extends horizontally to the inside of the shell 100 after the end away from the blower 710 bends upward, and the vertical pipe section 722 is designed to vertically upward, the internal airflow can flow smoothly, while avoiding the suction force acting directly on the core 200, the first coil 300, the second coil 400, and the third coil 600. In this way, on the one hand, it can reduce the disturbance of airflow to the coil winding, making the magnetic field distribution inside the inductor as stable as possible, and on the other hand, it can also avoid the electromagnetic interference or local stress change that may be caused by the direct strong wind acting on the winding surface. In addition, one end of the fixing frame 730 is connected with the inner wall of the shell 100, and the other end is connected with the outer wall of the vertical pipe section 722, so that the vertical pipe section 722 of the heat exchange pipe 720 remains stable in structure, avoiding displacement of the heat exchange pipe 720 due to long-term operation or external impact, thereby affecting its heat dissipation effect.

[0041] Through the above structural design, the present embodiment not only improves the heat dissipation efficiency of the inductor, but also optimizes the influence of the air exchange mechanism 700 on the normal operation of the inductor to some extent, so that the internal heat can be discharged more smoothly without affecting the electromagnetic properties or stability of the inductor due to airflow turbulence or improper suction force direction. This optimized design enables the inductor to maintain a lower temperature rise in a high-power, high-frequency operating environment, prolonging the service life and improving the overall reliability and work efficiency of the equipment.

[0042] In some embodiments, in combination with Figure 3 and Figure 4The pressing mechanism 800 comprises a connecting plate 810, a first extrusion assembly 820 and a second extrusion assembly 830. One end of the connecting plate 810 is connected to the outer wall of the vertical pipe segment 722 of the heat exchange pipe 720 and extends horizontally to a position close to the middle of the first coil 300 to serve as a structural support for fixing and transmitting the suction force. Meanwhile, the upper end of the insulation strip 500 is bent into an arc shape and connected to the end of the connecting plate 810, so that the insulation strip 500 can not only provide electrical isolation between the second coil 400 and the third coil 600, but also further enhance the support for the arrangement stability of the third coil 600 through the connecting plate 810.

[0043] For example, the first extrusion assembly 820 is rotatably installed on the upper wall of the connecting plate 810 and abuts against the lower end of the second coil 400, while the second extrusion assembly 830 is vertically slidably arranged on the lower wall of the connecting plate 810 and abuts against the upper end of the third coil 600. Through such structural arrangement, when the air blower 710 starts, a suction force is formed inside the vertical pipe segment 722, which acts on the curved pipe segment 721 and is transmitted to the connecting plate 810 in the airflow direction. In this process, the suction force will make the first extrusion assembly 820 apply an upward pushing force to the lower end of the second coil 400, so that the second coil 400 is tightly attached to the fixed position upward; at the same time, the suction force will also make the second extrusion assembly 830 apply a downward pushing force to the upper end of the third coil 600, so that the third coil 600 is tightly attached to the fixed position downward. In this way, the second coil 400 and the third coil 600 are subjected to opposite-direction pushing forces in the vertical direction, so that they remain stable in the axial direction of the core 200 and will not be loose or misaligned due to factors such as vibration or thermal expansion during operation.

[0044] In addition, since the first extrusion assembly 820 is rotatably installed, it can rotate and apply a pushing force when affected by the suction force, so that the pushing force acts more smoothly, reduces the possible impact force and improves the protection effect on the second coil 400. The second extrusion assembly 830 adopts a vertical sliding mode, which can more directly convert the suction force into a stable downward pushing force, so that the fixing effect on the third coil 600 is more uniform. This design not only effectively improves the arrangement stability of the coils and prevents the coils from being loose due to long-term operation, but also enhances the auxiliary heat dissipation effect of the air exchange mechanism 700 to some extent. Since the second coil 400 and the third coil 600 always remain separated in the axial direction, the gap therebetween can form a good air flow channel, so that the cooling airflow generated by the air exchange mechanism 700 can pass through the interior of the inductor more uniformly, thereby improving the overall heat dissipation efficiency.

[0045] Through the above structural design, the embodiment not only improves the electrical performance of the inductor, but also enhances the stability of its physical structure, so that the inductor can operate more reliably under high-power and high-frequency working conditions. In addition, the suction force generated when the air blower 710 is running is used to drive the pressing mechanism 800 to be fixed, which not only reduces the additional mechanical structure design requirements, but also reduces the complexity of the overall structure, so that the inductor can realize the dual optimization of heat dissipation and stability in a more simplified and efficient way. This design helps to improve the service life of the inductor and expand its application range in different application scenarios.

[0046] In some embodiments, in combination with Figure 3 and Figure 4 The first pressing assembly 820 includes a pressing rod 821 and a hinged seat 822. The rod body of the pressing rod 821 is rotationally connected with the hinged seat 822, so that the pressing rod 821 can swing by a certain angle around the hinged seat 822 to generate a corresponding mechanical response when subjected to the action of air flow. The structure of the pressing rod 821 can be divided into a windward rod section 8211 and an abutting rod section 8212. The windward rod section 8211 is located on one side of the hinged seat 822 and inside the vertical pipe section 722, while the abutting rod section 8212 is located on the other side of the hinged seat 822 and outside the vertical pipe section 722. Such structural design makes the windward rod section 8211 can be directly subjected to the action of suction force inside the vertical pipe section 722, while the abutting rod section 8212 is used to convert the suction force into the force acting on the second coil 400.

[0047] For example, the hinged seat 822 is arranged on the upper wall of the connecting plate 810 and close to the edge of the vertical pipe section 722, part of which is inside the vertical pipe section 722 and the other part extends to the outside of the vertical pipe section 722. This arrangement allows the pressing rod 821 to swing stably under the support of the hinged seat 822. When the air blower 710 is started, the air flow suction force inside the vertical pipe section 722 acts on the windward rod section 8211, causing the windward rod section 8211 to deflect under the action of air flow thrust and through the fulcrum of the hinged seat 822, so that the abutting rod section 8212 applies an upward thrust to the lower end of the second coil 400, thereby stably supporting the second coil 400 in the axial direction.

[0048] For example, the distal end of the abutting rod segment 8212 extends into the gap between the second coil 400 and the third coil 600 and abuts the lower end of the second coil 400. This design ensures that the abutting rod segment 8212 can exert uniform upward supporting force on the second coil 400 after being subjected to suction force, thereby preventing displacement or loosening of the coil due to vibration, thermal expansion or long-term operation to some extent. At the same time, since the structure of the extrusion rod 821 enables it to achieve self-adaptive adjustment by wind power, the extrusion rod 821 can make corresponding adjustments according to the suction force under different wind intensities, so that the pushing force applied to the second coil 400 always remains within an appropriate range, avoiding coil deformation due to excessive pushing force or reduced fixing effect due to insufficient pushing force.

[0049] With such structural arrangement, the present embodiment not only utilizes air flow suction force to stably support the coil, but also avoids additional mechanical driving devices, thereby improving the simplicity and reliability of the overall structure. At the same time, since the extrusion rod 821 is adjusted by air flow, it has relatively fast response speed and can produce stable supporting effect at the moment when the air blower 710 is running, making the fixing of the second coil 400 more reliable and conducive to improving the stability and heat dissipation effect of the inductor during long-term operation.

[0050] In some embodiments, for example, Figure 3 and Figure 4As shown, the rotating connection between the pressing rod 821 and the hinge seat 822 is provided with a torsional spring 823, one end of which is fixed to the hinge seat 822 and the other end is connected to the pressing rod 821, so that the torsional spring 823 always has a tendency to make the abutting rod segment 8212 rotate upward, that is, even when there is no additional driving force from the outside, the abutting rod segment 8212 will maintain a certain upward state, thereby continuously exerting pressure on the second coil 400 and improving the stability of the second coil 400. In the state where the air blower 710 is not running, the force of the torsional spring 823 is sufficient to make the abutting rod segment 8212 generate a proper abutting force on the second coil 400, so as to keep it stable and reduce displacement or looseness of the coil due to vibration or thermal expansion and contraction. When the air blower 710 starts, the suction force generated inside the vertical pipe segment 722 acts on the windward rod segment 8211, causing it to swing downward. In this process, the pressing rod 821 rotates around the hinge seat 822 and moves the abutting rod segment 8212 upward under the elastic action of the torsional spring 823, while exerting a more stable pushing force on the second coil 400, so as to further fix it during operation. Due to the presence of the torsional spring 823, even if the air blower 710 stops running, the pressing rod 821 can still maintain the abutting force on the second coil 400, avoiding the problem of structural looseness or reduced stability due to the stop of the air blower 710. Therefore, this design not only enhances the stability of the coil, but also enables the inductor to maintain a stable structural state during long-term operation, thereby improving the reliability and service life of the equipment.

[0051] In some embodiments, in combination with Figure 4 , Figure 5 and Figure 6 , the windward rod segment 8211 is provided with a first windward plate 8213, the plate surface of which is opposite to the upper end opening of the vertical pipe segment 722. This design enables the airflow from the vertical pipe segment 722 to directly act on the first windward plate 8213 when the air blower 710 starts, thereby increasing the wind force acting on the windward rod segment 8211 and improving its swing amplitude. Due to the presence of the windward plate, compared with only relying on the body of the windward rod segment 8211 to face the wind, the acting area of the wind force on the windward rod segment 8211 is increased, making the swing response of the pressing rod 821 more sensitive, and thus being able to more quickly exert a stable abutting action on the second coil 400. At the same time, the arrangement of the windward plate can make the airflow more concentratedly act on the windward rod segment 8211, improve the utilization efficiency of the structure to the wind force, and enable the pressing rod 821 to work normally under smaller wind force conditions, thereby improving the energy efficiency performance of the overall device to some extent. In addition, the shape and size of the windward plate can be optimized according to the wind force conditions to adapt to the application requirements in different environments, further enhancing the adaptability and reliability of the system.

[0052] In some embodiments, in combination with Figure 4 andFigure 6 The second extrusion assembly 830 includes a sleeve 831, a moving rod 832 and an extrusion strip 833. The sleeve 831 is vertically fixed to the lower wall of the connecting plate 810, has a hollow structure inside, and is open at the lower end, so that the moving rod 832 can slide vertically therein. The lower end of the moving rod 832 extends to the outside of the sleeve 831 and is connected perpendicularly to the middle of the extrusion strip 833, thereby achieving stable support and guiding effect on the extrusion strip 833. For example, a anti-disengagement flange is arranged at the lower end of the sleeve 831, and a limiting convex edge vertically abutting against the anti-disengagement flange is arranged at the top end of the moving rod 832, so that the moving rod 832 can not completely disengage from the sleeve 831. For example, one end of the extrusion strip 833 extends into the vertical pipe section 722, and the other end penetrates through the sliding strip slot 7221 in the pipe wall of the vertical pipe section 722 and extends into the gap between the second coil 400 and the third coil 600, and abuts against the upper end of the third coil 600. This structure design enables the suction force formed in the vertical pipe section 722 to directly act on the surface of the extrusion strip 833, so that the extrusion strip 833 is subjected to a downward thrust, thereby driving the moving rod 832 to slide along the inside of the sleeve 831 and driving the extrusion strip 833 to move downward. Since the extrusion strip 833 abuts against the upper end of the third coil 600, the downward movement of the extrusion strip 833 can exert a certain downward pressure on the third coil 600, thereby effectively enhancing the stability of the third coil 600 and preventing it from loosening or deviating in position during long-time operation.

[0053] For example, in order to reduce the loss of suction force at the sliding strip slot 7221, a folding concertina membrane 7222 is arranged on both sides of the sliding strip slot 7221, which always shields the sliding strip slot 7221 during the vertical sliding of the extrusion strip 833, so as to reduce the possibility of air leakage and maintain the suction level in the vertical pipe section 722 to some extent, so that the suction force can more effectively act on the extrusion strip 833 and the windward rod section 8211, thereby improving the overall energy efficiency of the system. Further, the upper end of the folding concertina membrane 7222 is connected to the upper inner wall of the sliding strip slot or the lower wall of the extrusion strip 833, and the lower end of the folding concertina membrane 7222 is connected to the lower inner wall of the sliding strip slot or the upper wall of the extrusion strip 833.

[0054] For example, the material of the folding concertina membrane 7222 can be selected from flexible rubber or high-temperature-resistant polymer material, so as to ensure that it will not be damaged due to frequent deformation during long-term use, and at the same time, provide good wind shielding effect during the movement of the extrusion strip 833. In addition, the sliding fit design of the moving rod 832 and the sleeve 831 helps to guide the stable movement of the extrusion strip 833 in the vertical direction, thereby avoiding the deviation problem caused by uneven force or inclination, and ensuring that the extrusion strip 833 can always maintain good contact with the upper end of the third coil 600, thereby improving the uniformity of the applied pressure.

[0055] In summary, through this structural design, after the blower 710 is started, the suction force in the vertical pipe section 722 can drive the extrusion strip 833 to move downward, thereby exerting a stable downward pressure on the third coil 600 without the need for an additional power source, improving the fixing effect of the coil. At the same time, the application of the folded concertina membrane 7222 helps to reduce the loss of suction to some extent, improving the utilization efficiency of the suction, so that the extrusion strip 833 and the windward rod section 8211 can be more reliably driven by the suction. This design not only improves the overall stability of the inductor, but also enhances its reliability during long-term operation, making it suitable for applications that require long-term operation and have high requirements for coil stability.

[0056] In some embodiments, in combination Figure 4 A spring 834 is provided between the inner end wall of the sleeve 831 and the upper end wall of the moving rod 832, with one end of the spring 834 fixed to the inner end wall of the sleeve 831 and the other end connected to the upper end wall of the moving rod 832. The spring 834 is always in a compressed state and has a tendency to move the moving rod 832 vertically downward, thereby still being able to exert a downward pushing force on the extrusion strip 833 when the blower 710 is not running, so that the extrusion strip 833 remains in contact with the upper end of the third coil 600 and continuously exerts a certain pressure. This structural design can effectively improve the fixing effect of the third coil 600, avoiding loosening due to external forces or long-term use, making it more stable to be wound. At the same time, the spring force of the spring 834 can be adjusted according to specific application requirements to ensure that the suction force is still sufficient to drive the moving rod 832 to move when the blower 710 is started, while the force of the spring 834 can maintain the compression state of the third coil 600 when the blower 710 stops running. This design improves the overall stability and service life of the inductor to some extent, so that it can still maintain good performance during long-term operation.

[0057] For example, the extrusion strip 833, the extrusion rod 821, and the insulating strip 500 are made of insulating materials such as glass fiber reinforced plastic, polyimide, polybutylene terephthalate, or epoxy resin.

[0058] In some embodiments, in combination Figure 4 , Figure 6The part of the extrusion strip 833 located in the vertical pipe segment 722 is provided with a second windward plate 835, the plate surface of which is opposite to the upper end opening of the vertical pipe segment 722 and is distributed in a staggered manner in the vertical direction with the first windward plate 8213. Such a structural design helps to optimize the distribution of wind force and improve the overall driving effect. Specifically, when the air blower 710 is started, suction force is generated inside the vertical pipe segment 722, which will act on the first windward plate 8213 and the second windward plate 835 in turn. Since the two are distributed in a staggered manner in the vertical direction, the first windward plate 8213 will not completely block the suction force, so that the second windward plate 835 can also be affected by the suction force. This design avoids the monopoly of wind force by a single windward plate, improves the driving effect of the suction force on multiple components, so that the first windward plate 8213 can more effectively drive the swing of the windward rod segment 8211, and at the same time, the second windward plate 835 can also push the extrusion strip 833 to move downward, so that the third coil 600 can be more stably compressed. In addition, this staggered structure can also balance the wind force distribution to a certain extent, reduce the uneven force on the components caused by excessive local suction force, and thus improve the overall stability and durability of the device.

[0059] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. An inductor with a shield structure, characterized by, The application relates to a heat exchanger, which comprises a shell (100), a core (200) and a first coil (300), the core (200) is vertically installed in the shell (100), and the first coil (300) is arranged on the outer periphery of the core (200). The application further comprises: a second coil (400) arranged on the outer periphery above the middle part of the first coil (300); an insulation strip (500) attached to the outer wall of the first coil (300) below the middle part of the first coil (300) along the axial direction of the first coil (300), and the thickness of the insulation strip (500) is the same as the outer diameter of the wire of the second coil (400); a third coil (600) arranged on the outer periphery below the middle part of the first coil (300) and attached to the insulation strip (500), the second coil (400) and the third coil (600) are distributed on the outer periphery of the first coil (300) in a staggered manner under the action of the insulation strip (500), and the sum of the turns of the second coil (400) and the third coil (600) is less than the total turns of the first coil (300); an air exchange mechanism (700) installed on the shell (100) for discharging heat in the shell (100) to the outside; a pressing mechanism (800) installed on the air exchange mechanism (700), one end of the insulation strip (500) is connected with the pressing mechanism (800), and one part of the pressing mechanism (800) abuts against the lower end of the second coil (400) and the other part of the pressing mechanism (800) abuts against the upper end of the third coil (600), wherein when the air exchange mechanism (700) operates, one part of the pressing mechanism (800) is affected by the air exchange mechanism (700) and applies an upward pushing force to the second coil (400), and the other part of the pressing mechanism (800) is affected by the air exchange mechanism (700) and applies a downward pushing force to the third coil (600), so that the second coil (400) and the third coil (600) do not interfere with each other in the vertical direction. The air exchange mechanism (700) comprises an air blower (710), a heat exchange pipe (720) and a fixing frame (730), wherein 2. The inductor with a guard structure according to claim 1, wherein, the air blower (710) is arranged on one side of the shell (100); the heat exchange pipe (720) comprises a curved pipe section (721) and a vertical pipe section (722), the curved pipe section (721) is arranged at the air suction end of the air blower (710), one end of the curved pipe section (721) away from the air blower (710) extends horizontally into the shell (100) and then is bent in an arc shape upwards and vertically upwards, and the vertical pipe section (722) is vertically connected to the upper end of the curved pipe section (721) in the shell (100); one end of the fixing frame (730) is connected with the inner wall of the shell (100) and the other end is connected with the outer wall of the vertical pipe section (722), so as to limit the position of the vertical pipe section (722). The pressing mechanism (800) comprises a connecting plate (810), a first extrusion assembly (820) and a second extrusion assembly (830), wherein 3. An inductor with a guard structure according to claim 2, wherein, ​ One end of the connecting plate (810) is connected with the outer wall of the vertical pipe section (722), and the other end horizontally extends to a position close to the middle of the first coil (300), and the upper end of the insulation strip (500) is connected with the end of the connecting plate (810) after being arc-bent; The first extrusion assembly (820) is rotationally arranged on the upper wall of the connecting plate (810), and the first extrusion assembly (820) abuts against the lower end of the second coil (400), when the air blower (710) is started to generate suction in the vertical pipe section (722), the first extrusion assembly (820) is subjected to the action of the suction to apply an upward thrust to the lower end of the second coil (400). The second extrusion assembly (830) is vertically slidably arranged on the lower wall of the connecting plate (810), and the second extrusion assembly (830) abuts against the upper end of the third coil (600), when the air blower (710) is started to generate suction in the vertical pipe section (722), the second extrusion assembly (830) is subjected to the action of the suction to apply a downward thrust to the lower end of the second coil (400).

4. An inductor with a guard structure according to claim 3, wherein, The first extrusion assembly (820) comprises an extrusion rod (821) and a hinged seat (822), wherein, The rod body of the extrusion rod (821) is rotationally connected with the hinged seat (822), the rod section part on one side of the hinged seat (822) is configured as a windward rod section (8211), and the rod section part on the other side of the hinged seat (822) is configured as an abutting rod section (8212), the windward rod section (8211) is located in the vertical pipe section (722), and the abutting rod section (8212) is located outside the vertical pipe section (722); The hinged seat (822) is arranged on the upper wall surface of the connecting plate (810) and close to the edge of the vertical pipe section (722), and a part of the hinged seat (822) is located in the vertical pipe section (722) and another part is located outside the vertical pipe section (722); The end of the abutting rod section (8212) away from the windward rod section (8211) extends into the gap between the second coil (400) and the third coil (600), and the abutting rod section (8212) abuts against the lower end of the second coil (400).

5. An inductor with a guard structure according to claim 4, wherein, The rotationally connected part of the extrusion rod (821) and the hinged seat (822) is provided with a torsional spring (823), the torsional spring (823) always has a tendency to rotate the abutting rod section (8212) upward.

6. The inductor with a guard structure according to claim 4, wherein, The windward rod section (8211) is provided with a first windward plate (8213), and the plate surface of the first windward plate (8213) is opposite to the upper end opening of the vertical pipe section (722).

7. An inductor with a guard structure according to claim 6, wherein, The second extrusion assembly (830) comprises a sleeve (831), a moving rod (832) and an extrusion strip (833), wherein, The sleeve (831) is vertically arranged on the lower wall surface of the connecting plate (810), and the inside of the sleeve (831) is hollow and the lower end is open; The moving rod (832) is slidably arranged in the sleeve (831), and the lower end of the moving rod (832) extends out of the sleeve (831); The middle part of the extrusion strip (833) is connected perpendicularly with the lower end of the moving rod (832), one part of the extrusion strip (833) extends into the vertical pipe section (722), the other part extends into the gap between the second coil (400) and the third coil (600) and abuts against the upper end of the third coil (600); A sliding strip groove (7221) is vertically formed in the pipe wall of the vertical pipe section (722), the extrusion strip (833) passes through the sliding strip groove (7221), and the upper and lower sides of the extrusion strip (833) are both provided with the folded piano membrane (7222) so as to always shield the sliding strip groove (7221) when the extrusion strip (833) vertically moves.

8. An inductor with a guard structure according to claim 7, wherein, The inner end wall of the sleeve (831) is connected with the upper end wall of the moving rod (832) through the spring (834), and the spring (834) always has a tendency to vertically push the moving rod (832) downward.

9. The inductor with guard structure according to claim 7, wherein, The part of the extrusion strip (833) in the vertical pipe section (722) is provided with the second windward plate (835), the plate face of the second windward plate (835) is opposite to the upper end opening of the vertical pipe section (722), and the second windward plate (835) is distributed in the vertical direction with the first windward plate (8213) in a staggered manner.

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