An integrated pfc inductor

Abstract

The utility model discloses an integrated PFC inductance, including bare inductance subassembly and fixed frame subassembly, and bare inductance subassembly is equipped with at least two, fixed frame subassembly includes the upper cover portion and lower cover portion of opposite setting, is used for the detachable connecting portion of detachable connection of upper cover portion and lower cover portion, and at least two bare inductance subassembly interval arrangement clamping between upper cover portion and lower cover portion, and upper cover portion and lower cover portion are equipped with the flow guide air duct structure for the heat dissipation of bare inductance subassembly, and bare inductance subassembly is clamped and fixed through upper cover portion and lower cover portion, and the structural stability is stronger, and the shielding of bare inductance subassembly is smaller, and the heat dissipation efficiency is high, and further heat dissipation is arranged through the flow guide air duct structure, guarantees the heat dissipation performance of integrated PFC inductance, prevents temperature rise and changes inductance characteristic, and the structure is simple, and the convenient installation is installed. The utility model is applicable to inductance component field.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of inductance element, specifically a kind of integrated PFC inductance. BACKGROUND

[0002] In today's power electronics field, PFC inductance has become one of the core components to ensure efficient and stable power supply, and the basic principle of PFC circuit is to use the phase difference of distorted input voltage and current to correct the power factor, which helps to reduce the load fluctuation of system components on power supply, thereby improving the stability and efficiency of the entire system, and is applied to electronic products such as personal computers, liquid crystal displays, server systems and other products that require a large amount of power supply.

[0003] At present, since high temperature has a great influence on the working performance of high-power PFC inductance, the heat dissipation performance of PFC inductance structure is crucial, and the existing PFC inductance enhances the heat dissipation effect by vertically arranging the magnetic core and only welding between the coil and the pin, so as to realize the fixation on the base, and the structural stability is not high, and the demand for balanced heat dissipation and structural stability cannot be met, and the requirement of integrated inductance high-strength work cannot be met. SUMMARY

[0004] The utility model aims at at least solving one of the technical problems existing in prior art. Therefore, the utility model provides an integrated PFC inductance, which solves the problem of unbalanced heat dissipation and structural stability.

[0005] According to the integrated PFC inductance of the first aspect of the utility model embodiment, which comprises:

[0006] The bare inductance assembly is provided with at least two;

[0007] The fixing frame assembly comprises an upper cover portion and a lower cover portion arranged oppositely, a detachable connecting portion for detachably connecting the upper cover portion and the lower cover portion, and at least two bare inductance assemblies are clamped between the upper cover portion and the lower cover portion, and the upper cover portion and the lower cover portion are provided with a flow guide duct structure for heat dissipation of the bare inductance assembly.

[0008] According to the integrated PFC inductance of the utility model embodiment, at least the following beneficial effects are obtained:

[0009] The utility model discloses a fixing frame is provided with upper cover portion and lower cover portion, and upper cover portion and lower cover portion are used for clamping bare inductance assembly, realize the fixation of bare inductance assembly, and the structure stability is higher, and the fixing frame only contacts bare inductance assembly in both ends, effectively reduces the shielding of fixing frame to bare inductance assembly, increases the contact area of bare inductance assembly and air, promotes the heat dissipation effect, is equipped with the air duct structure of guiding respectively in upper cover portion and lower cover portion, further heats bare inductance assembly, thereby in the excellent heat dissipation performance of keeping, guarantee the working stability of integrated PFC inductance, satisfy the requirement of integrated PFC inductance high strength work.

[0010] According to some embodiments of the utility model, the upper cover is provided with at least two first slots on the side facing the lower cover, the lower cover is provided with at least two second slots on the side facing the upper cover, one end of the at least two bare inductance assemblies is matched and clamped with the at least two first slots, and the other end is matched and clamped with the at least two second slots.

[0011] According to some embodiments of the utility model, the connecting piece is at least one bolt, the upper cover and the lower cover are respectively provided with at least one threaded hole corresponding, and the at least one threaded hole is matched and connected with the at least one bolt.

[0012] According to some embodiments of the utility model, the air duct structure of guiding includes at least one first guiding mechanism arranged in the upper cover portion, and the at least one first guiding mechanism is a groove structure.

[0013] According to some embodiments of the utility model, the air duct structure of guiding includes at least one second guiding mechanism arranged in the lower cover portion, and the at least one second guiding mechanism is a groove structure.

[0014] According to some embodiments of the utility model, the bare inductance assembly includes at least one inductance structure, and the inductance structure includes a magnetic core and at least one coil wound on the magnetic core.

[0015] According to some embodiments of the utility model, further including an insulating component, the insulating component includes at least one insulating piece, and the at least one insulating piece is arranged between adjacent two inductance structures and adjacent two bare inductance assemblies.

[0016] According to some embodiments of the utility model, the at least one insulating piece is an insulating paper component.

[0017] According to some embodiments of the utility model, the coil is provided with a connecting end, and the connecting end is provided with a connecting hole.

[0018] According to some embodiments of the utility model, at least one of the upper cover portion and the lower cover portion is provided with a plurality of mounting holes uniformly distributed around, and the mounting hole is used for mounting the integrated PFC inductance.

[0019] Other features and advantages of the present application will be set forth in the following description of the application, and in part will become apparent to those skilled in the art upon examination of the following or can be learned by practice of the application. The objects and advantages of the application can be realized and attained by means of the instrumentalities and combinations particularly pointed out in the appended claims. BRIEF DESCRIPTION OF DRAWINGS

[0020] The present application will be further described by examples in conjunction with the drawings in which:

[0021] Figure 1 A structure schematic view of one embodiment of the integrated PFC inductor provided by the present application;

[0022] Figure 2 An exploded view of one embodiment of the integrated PFC inductor provided by the present application;

[0023] LIST OF ELEMENTS

[0024] Naked inductor assembly 100; inductor structure 110; connecting hole 111;

[0025] Fixed frame assembly 200; upper cover part 210; first slot position 211; lower cover part 220; second slot position 221; detachable connecting part 230; screw bolt 231; threaded hole 232; flow guide air duct structure 240; first flow guide mechanism 241; second flow guide mechanism 242; mounting hole 250;

[0026] Insulation assembly 300; insulation piece 310. DETAILED DESCRIPTION

[0027] The embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are used only for explaining the present application, and cannot be understood as limiting the present application.

[0028] In the description of the present application, it is to be understood that the orientation description, such as the orientation or position relationship indicated by up, down, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the present application, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0029] In the description of the present application, the plural refers to two or more. If there is a description of first, second, etc. for the purpose of distinguishing technical features, it cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0030] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installing, connecting should be understood broadly, and the skilled in the art can determine the specific meaning of the above words in the utility model according to the specific content of technical scheme.

[0031] The technical scheme of the utility model will be described clearly and completely in conjunction with the drawings, obviously, the following described embodiments are a part of embodiments of the utility model, not all embodiments.

[0032] In the field of power electronics today, PFC inductance has become one of the core components to ensure efficient and stable power supply, the basic principle of PFC circuit is to use the phase difference of distorted input voltage and current to correct the power factor, which helps to reduce the load fluctuation of power supply caused by system components, thereby improving the stability and efficiency of the whole system, and is applied to electronic products such as personal computer, liquid crystal display, server system and other products requiring large power supply.

[0033] At present, since high temperature has a great influence on the working performance of high-power PFC inductance, the heat dissipation performance of PFC inductance structure 110 is crucial, in order to enhance the heat dissipation effect, the existing PFC inductance vertically sets the magnetic core and only fixes on the base through the welding between the coil and the pin, the structure stability is not high, the demand of balanced heat dissipation and structure stability cannot be met, and the requirement of integrated inductance high strength work cannot be met.

[0034] To solve the above problems, the utility model provides an integrated PFC inductance, which solves the problem of unbalanced heat dissipation and structure stability.

[0035] Reference Figure 1 And Figure 2 The utility model discloses an integrated PFC inductance makes the following embodiments:

[0036] The utility model embodiment's integrated PFC inductance includes bare inductance subassembly 100 and fixed frame subassembly 200.

[0037] Wherein, bare inductance subassembly 100 includes at least two, refer to Figure 1 In this embodiment, bare inductance subassembly 100 is provided with two, in some other embodiments, the number of bare inductance subassembly 100 can be set according to actual application demand.

[0038] The mounting bracket assembly 200 includes an upper cover portion 210 and a lower cover portion 220 disposed opposite to each other, and a detachable connecting portion 230 for detachably connecting the upper cover portion 210 and the lower cover portion 220. At least two bare inductor assemblies 100 are arranged at intervals and clamped between the upper cover portion 210 and the lower cover portion 220. The at least two bare inductor assemblies 100 are fixedly connected by the mutual clamping force of the upper cover portion 210 and the lower cover portion 220. The structure has strong stability, is not easily deformed, and is easy to disassemble and highly flexible, making it convenient to assemble and replace the bare inductor assemblies 100.

[0039] Since the bare inductor assembly 100 includes at least one inductor structure 110, the inductor structure 110 includes a magnetic core and at least one coil wound around the magnetic core. The magnetic core uses a low-loss, high-bias magnetic powder core, which has lower losses while meeting the bias performance requirements. The coil uses a flat wire vertical winding method, which helps to reduce proximity effect losses, improve space utilization and heat dissipation performance, and facilitates assembly and installation. The coil is provided with a connection end, and the connection end is provided with a connection hole 111, which facilitates connection with other electrical components.

[0040] In this embodiment, the magnetic core is arranged vertically, with its two ends contacting the upper cover 210 and the lower cover 220, respectively. This reduces the obstruction of the magnetic core and coil by the fixing bracket assembly 200, increases the contact area between the magnetic core and coil and the air, helps to conduct away the heat generated during the operation of the bare inductor assembly 100, improves heat dissipation efficiency, and is beneficial to the working stability of the integrated PCF inductor.

[0041] Furthermore, the upper cover 210 has at least two first slots 211 on the side facing the lower cover 220, and the lower cover 220 has at least two second slots 221 on the side facing the upper cover 210. One end of at least two bare inductor components 100 is matched and engaged with at least two first slots 211, and the other end is matched and engaged with at least two second slots 221. Based on clamping and fixing, the bare inductor components 100 are further limited by adding recessed slots, making the integrated PCF inductor structure 110 more stable, so that the magnetic core can remain stable when subjected to vibration or impact, thereby improving the reliability and service life of the product.

[0042] At least one of the upper cover portion 210 and the lower cover portion 220 has a plurality of evenly distributed mounting holes 250 around its perimeter. The mounting holes 250 are used to mount an integrated PFC inductor to facilitate the assembly of the integrated PFC inductor onto an external component.

[0043] The detachable connection part 230 includes at least one bolt 231 passing through the upper cover part 210 and the lower cover part 220. The upper cover part 210 and the lower cover part 220 are provided with at least one threaded hole 232 at the corresponding position of the at least one bolt 231. The at least one threaded hole 232 is matched and connected with the at least one bolt 231. The upper cover part 210 and the lower cover part 220 are clamped and connected by tightening the at least one bolt 231, thus completing the detachable connection of the upper cover part 210 and the lower cover part 220.

[0044] The bolts 231 enable detachable connections, improving assembly and disassembly efficiency and facilitating component replacement. Furthermore, the tightness of the bolts 231 controls the distance between the upper cover 210 and the lower cover 220, allowing for adaptation to bare inductor assemblies 100 of different sizes, offering high flexibility. In this embodiment, two bolts 231 are symmetrically positioned at both ends between the two bare inductor assemblies 100, resulting in strong overall symmetry and balanced force distribution in the integrated PCF inductor structure. This effectively improves the stability and reliability of the connection, and the use of only two bolts 231 for fixation saves cost and space.

[0045] In some other embodiments, other numbers of bolts 231 may be used, such as one or three, as long as the clamping requirements of the upper cover 210 and the lower cover 220 are met. In some other embodiments, the detachable connection 230 may be in other forms, such as a snap-fit ​​structure, as long as the detachable connection requirements of the upper cover 210 and the lower cover 220 are met.

[0046] The upper cover 210 and the lower cover 220 are provided with airflow duct structures 240 for heat dissipation of the bare inductor assembly 100. These structures guide the airflow and direct the airflow direction. Through convection heat dissipation, the heat dissipated by the bare inductor assembly 100 is dissipated through the airflow, thereby further improving heat dissipation efficiency and preventing heat from remaining inside the integrated PCF inductor, which would cause the temperature to rise and thus affect the performance of the integrated PCF inductor.

[0047] Specifically, the airflow duct structure 240 includes at least one first airflow guiding mechanism 241 arranged on the upper cover portion 210. The first airflow guiding mechanism 241 is located on the side of the upper cover portion 210 away from the lower cover portion 220 and is a groove structure provided on the upper cover portion 210. The airflow duct structure 240 also includes at least one second airflow guiding mechanism 242 arranged on the lower cover portion 220. The at least one second airflow guiding mechanism 242 is located on the side of the lower cover portion 220 away from the upper cover portion 210 and is a groove structure provided on the lower cover portion 220. Air outside the integrated PCF inductor can flow into the integrated PCF inductor through the first airflow guiding mechanism 241 or the second airflow guiding mechanism 242, thereby exchanging heat and flowing out of the integrated PCF inductor, thus ensuring the heat dissipation performance of the integrated PCF inductor.

[0048] The integrated PCF inductor provided in this embodiment also includes an insulation component 300. The insulation component 300 includes at least one insulating element 310. The at least one insulating element 310 is disposed between two adjacent inductor structures 110 and between two adjacent bare inductor components 100 to improve the insulation performance between the inductor structures 110 and prevent mutual interference, thereby affecting the performance of the integrated PCF inductor.

[0049] Among them, at least one insulating component 310 is an insulating paper component. The insulating paper component is made of AMA (aramid modified alkyd resin) material, which has excellent electrical insulation performance. While ensuring insulation performance, it saves space, improves the integration degree of integrated PFC inductor, and reduces the overall volume.

[0050] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0051] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An integrated PFC inductor, characterized in that, include: Bare inductor components, with at least two; The mounting bracket assembly includes an upper cover and a lower cover disposed opposite to each other, a detachable connecting part for detachably connecting the upper cover and the lower cover, at least two bare inductor assemblies are spaced apart and clamped between the upper cover and the lower cover, and the upper cover and the lower cover are provided with airflow duct structures for heat dissipation of the bare inductor assemblies.

2. The integrated PFC inductor according to claim 1, characterized in that: The upper cover has at least two first slots on the side facing the lower cover, and the lower cover has at least two second slots on the side facing the upper cover. One end of each of the at least two bare inductor components is matched and engaged with at least two of the first slots, and the other end is matched and engaged with at least two of the second slots.

3. The integrated PFC inductor according to claim 2, characterized in that: The detachable connection includes at least one bolt, and the upper cover and the lower cover are respectively provided with at least one threaded hole, and at least one threaded hole is matched and connected to at least one bolt.

4. The integrated PFC inductor according to claim 1, characterized in that: The airflow duct structure includes at least one first airflow guiding mechanism arranged on the upper cover, and at least one first airflow guiding mechanism is a groove structure.

5. The integrated PFC inductor according to claim 1, characterized in that: The airflow duct structure includes at least one second airflow guiding mechanism arranged on the lower cover, and at least one second airflow guiding mechanism is a groove structure.

6. The integrated PFC inductor according to claim 1, characterized in that: The bare inductor assembly includes at least one inductor structure, the inductor structure including a magnetic core and at least one coil wound around the magnetic core.

7. The integrated PFC inductor according to claim 6, characterized in that: It also includes an insulating component, the insulating component comprising at least one insulating element disposed between two adjacent inductor structures and between two adjacent bare inductor components.

8. The integrated PFC inductor according to claim 7, characterized in that: At least one of the insulating components is an insulating paper component.

9. The integrated PFC inductor according to claim 6, characterized in that: The coil is provided with a connecting end, and the connecting end is provided with a connecting hole.

10. The integrated PFC inductor according to claim 1, characterized in that: At least one of the upper cover and the lower cover has a plurality of evenly distributed mounting holes around its perimeter, the mounting holes being used to mount the integrated PFC inductor.

Images