Coil, electronic component, and electronic apparatus
By designing the coil structure of multiple sub-coils wound in parallel, the problem of welding failure caused by the small welding area between the coil pins and the circuit board is solved, and the effect of increasing the welding area and reducing the risk of welding failure is achieved.
Patent Information
- Application Number
- CN202420027123.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-05
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-01-05
AI Technical Summary
In the prior art, the soldering area between the pins of the coil and the circuit board in the electronic device is small, resulting in a large thermal expansion and contraction stress, and there is a risk of welding failure.
Design a coil, including multiple sub-coils arranged coaxially and wound in parallel. The input pins of two adjacent sub-coils are spaced by at least one turn of winding, and the output pins of two adjacent sub-coils are spaced apart. At least one turn of wire is used to increase the soldering area between the input and output pins of the coil and the circuit board.
By increasing the welding area, the stress of thermal expansion and contraction during work is reduced, and the risk of welding failure is reduced. There is no need to add fixtures and processing techniques, simplifying the production process.
Smart Images
Figure CN222380362U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to electronic component manufacturing technology, and in particular to a coil, an electronic component and an electronic device. Background Art
[0002] A coil is a ring-shaped wire winding, commonly used in electronic components such as inductors and transformers. With the advancement of technology, electronic devices (such as power supplies) are generally moving towards higher power, so it is necessary to make the electronic components inside the electronic devices able to withstand higher currents.
[0003] In the related art, in order to meet the demand for higher current of electronic equipment, the coil of the electronic component is usually made by connecting multiple wires in parallel. However, when the above solution is adopted, the soldering area between the pins of the coil and the circuit board of the electronic equipment is small, and the thermal expansion and contraction stress is large during operation, which may cause the risk of soldering failure. Utility Model Content
[0004] In order to overcome the above-mentioned defects under the related art, the purpose of the present application is to provide a coil, an electronic component and an electronic device. The present application can increase the welding area between the input pin and the output pin of the coil and the circuit board of the electronic device, reduce the stress of thermal expansion and contraction during operation, and reduce the risk of welding failure between the coil and the circuit board.
[0005] On the one hand, the present application provides a coil, comprising a plurality of sub-coils coaxially arranged and wound in parallel, wherein at least one turn of winding wire is spaced between the input pins of two adjacent sub-coils, and at least one turn of winding wire is spaced between the output pins of two adjacent sub-coils.
[0006] In a possible implementation manner, the number of winding turns between input pins of two sub-coils among the plurality of sub-coils is the same as the number of winding turns between output pins of the two sub-coils.
[0007] In a possible implementation, the number of winding turns between the input pins of any two adjacent sub-coils is the same or different, and the number of winding turns between the output pins of any two adjacent sub-coils is the same or different.
[0008] In a possible implementation manner, the sub-coil is formed by winding a single flat wire.
[0009] In a possible implementation, the flat wire includes an enameled copper wire, a film-coated copper wire, an enameled aluminum wire, or a film-coated aluminum wire.
[0010] In a possible implementation manner, the flat wire is wound in a triangle, square or circle shape.
[0011] In a possible implementation manner, in a plane perpendicular to the axis of the coil, projections of input pins of the plurality of sub-coils overlap, and projections of output pins of the plurality of sub-coils overlap.
[0012] In a possible implementation manner, the plurality of sub-coils are integrated into one.
[0013] On the other hand, the present application provides an electronic component, comprising any coil as described above, wherein the electronic component comprises an inductor or a transformer.
[0014] On the other hand, the present application provides an electronic device, comprising the electronic component as described above.
[0015] The present application provides a coil, an electronic component and an electronic device, wherein the coil comprises a plurality of sub-coils coaxially arranged and wound in parallel, wherein the input pins of two adjacent sub-coils are spaced apart by at least one winding turn, and the output pins of two adjacent sub-coils are spaced apart by at least one winding turn. Through the above structure, the present application can make the input pins of each sub-coil constituting the input pin of the coil spaced apart by a certain distance, and the output pins of each sub-coil constituting the output pin of the coil spaced apart by a certain distance, thereby increasing the soldering area between the input pin and the output pin of the coil and the circuit board, reducing the stress of thermal expansion and contraction during operation, and reducing the risk of soldering failure. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the following is a brief introduction to the drawings required for use in the embodiments or the related technical descriptions. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0017] Figure 1 It is a structural diagram of a coil in the related art;
[0018] Figure 2 A simplified structural diagram of an electronic device in the related art;
[0019] Figure 3 It is a structural diagram of another coil in the related art;
[0020] Figure 4 A schematic diagram of the structure of a coil provided in one embodiment of the present application;
[0021] Figure 5 A schematic structural diagram of a coil provided in another embodiment of the present application;
[0022] Figure 6 A simplified structural diagram of an electronic device provided in one embodiment of the present application.
[0023] Reference numerals:
[0024] 10- coil;
[0025] 20-circuit board; 21-welding hole; 211-sub-welding hole;
[0026] 100 - first sub-coil; 110 - input pin of the first sub-coil; 120 - output pin of the first sub-coil;
[0027] 200 - the second sub-coil; 210 - the input pin of the second sub-coil; 220 - the output pin of the second sub-coil. DETAILED DESCRIPTION
[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.
[0029] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.
[0030] As described in the background technology, in order to meet the demand for higher current of electronic equipment, the coil of the electronic component needs a larger cross-sectional area. Limited by the production process and winding process, the diameter of a single wire cannot be increased infinitely, so the coil is usually prepared by connecting multiple wires in parallel in the related technology.
[0031] Figure 1 FIG. 1 is a schematic diagram of the structure of a coil in the related art. Figure 1 As shown, the coil 10 of the related technology includes a first sub-coil 100 and a second sub-coil 200 arranged in parallel. When manufacturing, the first sub-coil 100 and the second sub-coil 200 are firstly wound with metal wires, and then the input pin 110 of the first sub-coil is aligned with the output pin 220 of the second sub-coil, and the first sub-coil 100 is screwed from the output pin 220 of the second sub-coil to the input pin 210 of the second sub-coil, finally making the input pin 110 of the first sub-coil coincide with the input pin 210 of the second sub-coil, and the output pin 120 of the first sub-coil coincide with the output pin 220 of the second sub-coil, thereby realizing parallel connection and increasing the cross-sectional area of the coil 10.
[0032] Figure 2 It is a simplified structural diagram of an electronic device in the related art; wherein, Figure 2Only part of the structure of the electronic device is shown. Figure 2 The coil of the electronic component is used Figure 1 As shown in the coil. Since the coil 10 is composed of a first sub-coil 100 and a second sub-coil 200 connected in parallel, the cross-sectional area of the coil 10 is large, so that the electronic device can withstand a larger current. A circuit board 20 for connecting the coil is provided in the electronic device, and a plurality of welding holes 21 are provided on the circuit board 20. The input pins and output pins of the coil 10 are respectively inserted into the corresponding welding holes 21 and then welded to the circuit board 20.
[0033] However, when the coil 10 adopts the parallel connection scheme of the first sub-coil 100 and the second sub-coil 200, the input pin of the coil 10 is composed of the input pin 110 of the first sub-coil and the input pin 210 of the second sub-coil connected to each other. When connected to the circuit board 20, only the peripheral side of the input pin of the coil 10 is welded to the welding hole 21, which is equivalent to that the connection surface of the input pin 110 of the first sub-coil and the input pin 210 of the second sub-coil is not welded to the welding hole 21. Similarly, the output pin of the coil 10 is also only welded to the welding hole 21 on the peripheral side, and the connection surface of the output pin 120 of the first sub-coil and the output pin 220 of the second sub-coil is not welded to the welding hole. In this scheme, the welding area between the input pin and the output pin of the coil 10 and the circuit board is small, the thermal expansion and contraction stress is large during operation, and there is a risk of welding failure.
[0034] Figure 3 This is a schematic diagram of the structure of another coil in the related technology. Figure 3 In order to solve the above problems, another coil is provided in the related art. Figure 1 On the basis of the coil shown, the overlapping input pin 110 of the first sub-coil and the input pin 210 of the second sub-coil, and the overlapping output pin 120 of the first sub-coil and the output pin 220 of the second sub-coil are separated by a jig, so that the input pin 110 of the first sub-coil and the input pin 210 of the second sub-coil are spaced a certain distance apart, and the output pin 120 of the first sub-coil and the output pin 220 of the second sub-coil are spaced a certain distance apart. When the coil 10 and the circuit board 20 are welded, the welding area of the coil 10 and the circuit board 20 can be increased, thereby reducing the stress of thermal expansion and contraction during operation and reducing the risk of welding failure. However, this solution requires the addition of more jigs and processing techniques, and the process is complicated and there are quality risks.
[0035] In view of this, the embodiments of the present application aim to provide a coil, an electronic component and an electronic device, by spacing the output pins of two adjacent sub-coils by at least one turn of winding wire and spacing the input pins of two adjacent sub-coils by at least one turn of winding wire, thereby increasing the welding area between the input pins and the output pins of the coil and the circuit board without increasing the jig and processing technology, reducing the stress caused by thermal expansion and contraction during operation, and reducing the risk of welding failure.
[0036] The contents of the embodiments of the present application will be described in detail below in conjunction with the accompanying drawings so that those skilled in the art can understand the contents of the present application in more detail.
[0037] Figure 4 A schematic diagram of the structure of a coil provided in one embodiment of the present application; Figure 5 A schematic diagram of the structure of a coil provided in another embodiment of the present application.
[0038] Please refer to Figure 4-Figure 5 This embodiment provides a coil 10, comprising a plurality of sub-coils coaxially arranged and wound in parallel, wherein at least one winding turn is spaced between input pins of two adjacent sub-coils, and at least one winding turn is spaced between output pins of two adjacent sub-coils.
[0039] Specifically, the winding direction, spacing, volume, shape and other parameters of each sub-coil constituting the coil 10 are the same. Figure 1 The difference between the coil structure shown in the figure is that in this embodiment, the input pins of two adjacent sub-coils are separated by at least one winding turn, and the output pins of two adjacent sub-coils are separated by at least one winding turn, so that the input pins of each sub-coil constituting the input pin of the coil 10 are separated by a certain distance, and the output pins of each sub-coil constituting the output pin of the coil 10 are separated by a certain distance. In other words, compared with Figure 1 The coil structure shown is different in that, in this embodiment, the input pins of each sub-coil constituting the input pin of the coil 10 are no longer in direct contact, and there is a certain gap between them; the output pins of each sub-coil constituting the output pin of the coil 10 are no longer in direct contact, and there is a certain gap between them.
[0040] In one possible implementation, Figure 4 and Figure 5As shown, the coil 10 of this embodiment can be composed of two sub-coils, and the two sub-coils can be, for example, a first sub-coil 100 and a second sub-coil 200. The first sub-coil 100 and the second sub-coil 200 have the same parameters such as winding direction, spacing, volume and shape, and are coaxially arranged and wound in parallel. There is at least one winding turn between the input pin 110 of the first sub-coil and the input pin 210 of the second sub-coil, and there is at least one winding turn between the output pin 120 of the first sub-coil and the output pin 220 of the second sub-coil. Finally, the input pin 110 of the first sub-coil constituting the input pin of the coil 10 and the input pin 210 of the second sub-coil are spaced a certain distance apart, and the output pin 120 of the first sub-coil constituting the output pin of the coil 10 and the output pin 220 of the second sub-coil are spaced a certain distance apart.
[0041] The above only shows a preferred embodiment. In other possible embodiments, the coil 10 may also be composed of three, four, five, etc. sub-coils, which can be determined according to actual needs and will not be described in detail in this embodiment.
[0042] It can be seen from the above description that when the input pin and the output pin of the coil 10 of this embodiment are welded to the circuit board, the surroundings of the input pin of each sub-coil can be welded to the circuit board, and the surroundings of the output pin of each sub-coil can be welded to the circuit board; compared with Figure 1 As shown in the scheme, this embodiment can increase the soldering area between the input pin and the output pin of the coil 10 and the circuit board, reduce the stress of thermal expansion and contraction during operation, and reduce the risk of soldering failure.
[0043] In a possible implementation manner, in this embodiment, the number of winding turns between the input pins of two sub-coils among the multiple sub-coils is the same as the number of winding turns between the output pins of the two sub-coils.
[0044] For example, please refer to Figure 4 and Figure 5 In a possible implementation, the number of winding turns between the input pin 110 of the first sub-coil and the input pin 210 of the second sub-coil of this embodiment is equal to the number of winding turns between the output pin 120 of the first sub-coil and the output pin 220 of the second sub-coil.
[0045] In other possible implementations, for example, the coil 10 may be composed of four sub-coils. For the sake of distinction, the four sub-coils may be respectively the first sub-coil, the second sub-coil, the third sub-coil and the fourth sub-coil; wherein the number of winding turns between the input pins of any two sub-coils is equal to the number of winding turns between the output pins of the two sub-coils. For example, the number of winding turns between the input pin of the first sub-coil and the input pin of the third sub-coil is equal to the number of winding turns between the output pin of the first sub-coil and the output pin of the third sub-coil; the number of winding turns between the input pin of the second sub-coil and the input pin of the fourth sub-coil is equal to the number of winding turns between the output pin of the second sub-coil and the output pin of the fourth sub-coil.
[0046] In a possible implementation, in a plane perpendicular to the axis of the coil 10 , the projections of the input pins of the plurality of sub-coils overlap, and the projections of the output pins of the plurality of sub-coils overlap.
[0047] For example, please refer to Figure 4 and Figure 5 In a possible implementation, the projections of the input pin 110 of the first sub-coil and the input pin 210 of the second sub-coil in a plane perpendicular to the axis of the coil 10 coincide with each other, and the projections of the output pin 120 of the first sub-coil and the output pin 220 of the second sub-coil in a plane perpendicular to the axis of the coil 10 coincide with each other.
[0048] In other possible implementations, the coil 10 is composed of four sub-coils as an example for explanation. In a plane perpendicular to the axis of the coil 10, the projection of the input pin of the first sub-coil, the projection of the input pin of the second sub-coil, the projection of the input pin of the third sub-coil, and the projection of the input pin of the fourth sub-coil all overlap; the projection of the output pin of the first sub-coil, the projection of the output pin of the second sub-coil, the projection of the output pin of the third sub-coil, and the projection of the output pin of the fourth sub-coil all overlap.
[0049] In a possible implementation manner, the number of winding turns between the input pins of any two adjacent sub-coils is the same or different, and the number of winding turns between the output pins of any two adjacent sub-coils is the same or different.
[0050] In this embodiment, the number of winding turns between the input pins of any two adjacent sub-coils and the number of winding turns between the output pins of any two adjacent sub-coils can be determined as needed, for example, according to the assembly position.
[0051] The coil 10 is also described as consisting of four sub-coils.
[0052] Optionally, the number of winding turns between the input pin of the first sub-coil and the input pin of the second sub-coil may be, for example, one turn, the number of winding turns between the input pin of the second sub-coil and the input pin of the third sub-coil may be, for example, two turns, and the number of winding turns between the input pin of the third sub-coil and the input pin of the fourth sub-coil may be, for example, three turns; the number of winding turns between the output pin of the first sub-coil and the output pin of the second sub-coil may be, for example, one turn, the number of winding turns between the output pin of the second sub-coil and the output pin of the third sub-coil may be, for example, two turns, and the number of winding turns between the output pin of the third sub-coil and the output pin of the fourth sub-coil may be, for example, three turns. That is, the number of winding turns between the input pins of two adjacent sub-coils is different, and the number of winding turns between the output pins of two adjacent sub-coils is different.
[0053] Optionally, the number of winding turns between the input pin of the first sub-coil and the input pin of the second sub-coil may be, for example, one turn, the number of winding turns between the input pin of the second sub-coil and the input pin of the third sub-coil may be, for example, one turn, the number of winding turns between the input pin of the third sub-coil and the input pin of the fourth sub-coil may be, for example, one turn; the number of winding turns between the output pin of the first sub-coil and the output pin of the second sub-coil may be, for example, one turn, the number of winding turns between the output pin of the second sub-coil and the output pin of the third sub-coil may be, for example, one turn, the number of winding turns between the output pin of the third sub-coil and the output pin of the fourth sub-coil may be, for example, one turn. That is, the number of winding turns between the input pins of two adjacent sub-coils is the same, and the number of winding turns between the output pins of two adjacent sub-coils is the same.
[0054] In this embodiment, each sub-coil is wound by a single flat wire, wherein the flat wire includes an enameled copper wire, a film-wrapped copper wire, an enameled aluminum wire or a film-wrapped aluminum wire.
[0055] Optionally, the winding shape of the flat wire in this embodiment can be determined as needed. For example, the flat wire can be wound in a triangle, a square (such as Figure 4 as shown) or round (as Figure 5 The specific winding shape can be determined according to the needs such as the assembly gap between the core and the like.
[0056] In a possible implementation, the coil 10 of this embodiment is formed of multiple sub-coils in one piece. Specifically, the input pin of the first sub-coil of the coil 10 is screwed in from the output pin of the second sub-coil to the side of the input pin of the second sub-coil, and stops when there is at least one turn of winding between the input pin of the first sub-coil and the output pin of the second sub-coil, so that the multiple sub-coils are formed into one piece. In the above description, the first sub-coil and the second sub-coil are only used to distinguish between two sub-coils that are adjacent in sequence during winding.
[0057] For example, please refer to Figure 4 and Figure 5 , the coil 10 of this embodiment includes a first sub-coil 100 and a second sub-coil 200. During winding, firstly, a single flat wire is used to wind the first sub-coil 100 and the second sub-coil 200 with the same parameters such as winding direction, spacing, volume and shape. Then, the input pin 110 of the first sub-coil is screwed in from the output pin 220 side of the second sub-coil to the input pin 210 side of the second sub-coil. When the input pin 110 of the first sub-coil and the input pin 210 of the second sub-coil are separated by a predetermined number of turns (one turn in the figure), the screwing in is stopped, thereby forming the coil 10. At this time, the input pin 110 of the first sub-coil and the input pin 210 of the second sub-coil are separated by one turn of winding, and the output pin 120 of the first sub-coil and the output pin 220 of the second sub-coil are separated by one turn of winding.
[0058] In other possible implementations, the coil 10 is also described as consisting of four sub-coils. During winding, firstly, a single flat wire is used to wind the first sub-coil, the second sub-coil, the third sub-coil, and the fourth sub-coil with the same parameters such as winding direction, spacing, volume, and shape. Then, the input pin of the second sub-coil is screwed in from the output pin side of the first sub-coil to the input pin side of the first sub-coil; when the input pin of the second sub-coil is separated from the input pin of the first sub-coil by a predetermined number of turns of winding, the screwing in is stopped. Continue to screw the input pin of the third sub-coil from the output pin side of the second sub-coil to the input pin side of the second sub-coil; when the input pin of the third sub-coil is separated from the input pin of the second sub-coil by a predetermined number of turns of winding, the screwing in is stopped. Finally, the input pin of the fourth sub-coil is screwed in from the output pin side of the third sub-coil to the input pin side of the third sub-coil; when the input pin of the fourth sub-coil is separated from the input pin of the third sub-coil by a predetermined number of turns of winding, the screwing in is stopped, and finally the coil 10 is formed.
[0059] When the coil 10 is composed of other numbers of sub-coils, it can also be manufactured in the above manner.
[0060] This embodiment further provides an electronic component, including the coil 10 described above, wherein the electronic component includes an inductor or a transformer.
[0061] Since the electronic component of this embodiment adopts the above-mentioned coil 10, the soldering area between the input pin and the output pin of the coil 10 and the circuit board can be increased, the stress of thermal expansion and contraction during operation can be reduced, and the risk of soldering failure can be reduced.
[0062] Figure 6 This is a simplified structural diagram of an electronic device provided in one embodiment of the present application. Figure 6 This embodiment also provides an electronic device, including the above electronic components.
[0063] Specifically, the electronic device may be, for example, a power supply or other device, and the electronic device includes a housing, a circuit board 20 and at least one electronic component disposed in the housing. The circuit board 20 is provided with a plurality of welding holes, each of which includes a plurality of sub-welding holes. The input pins and output pins of the coil 10 of the electronic component are both welded and fixed to the welding holes on the circuit board 20, wherein the output pins of each sub-coil constituting the output pins of the coil 10 correspond one-to-one to the plurality of sub-welding holes constituting the welding holes, and the input pins of each sub-coil constituting the input pins of the coil 10 correspond one-to-one to the plurality of sub-welding holes constituting the welding holes.
[0064] For example, Figure 6 As shown, the electronic device includes a circuit board 20 and three coils 10. Six welding holes 21 are provided on the circuit board 20, and each welding hole includes two sub-welding holes 211. The three coils 10 have the same structure, and all include a first sub-coil 100 and a second sub-coil 200; the input pins of the coil 10 are composed of an input pin 110 of the first sub-coil and an input pin 210 of the second sub-coil arranged at intervals, and the input pins 110 of the first sub-coil and the input pins 210 of the second sub-coil are respectively welded in the two sub-welding holes 211 of the same welding hole 21. The output pins of the coil 10 are composed of an output pin 120 of the first sub-coil and an output pin 220 of the second sub-coil arranged at intervals, and the output pins 120 of the first sub-coil and the output pins 220 of the second sub-coil are respectively welded in the two sub-welding holes 211 of the same welding hole 21. Through the above structure, the electronic device of this embodiment increases the welding area between the input pin and the output pin of the coil 10 and the circuit board 20, reduces the stress of thermal expansion and contraction during operation, and reduces the risk of welding failure.
[0065] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0066] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0067] It should be noted that in the description of this application, the terms "first" and "second" are only used to facilitate the description of different components, and cannot be understood as indicating or implying a sequential relationship, relative importance, or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features.
[0068] The various embodiments or implementation methods in the present application are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.
[0069] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In the present application, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.
[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A coil, characterized in that: It comprises a plurality of sub-coils which are coaxially arranged and wound in parallel, wherein at least one winding turn is spaced between the input pins of two adjacent sub-coils, and at least one winding turn is spaced between the output pins of two adjacent sub-coils.
2. The coil according to claim 1, characterized in that The number of winding turns between input pins of two sub-coils among the plurality of sub-coils is the same as the number of winding turns between output pins of the two sub-coils.
3. The coil according to claim 1, characterized in that The number of winding turns between the input pins of any two adjacent sub-coils is the same or different, and the number of winding turns between the output pins of any two adjacent sub-coils is the same or different.
4. The coil according to claim 1, characterized in that The sub-coil is formed by winding a single flat wire.
5. The coil according to claim 4, characterized in that The flat wire includes an enameled copper wire, a film-coated copper wire, an enameled aluminum wire or a film-coated aluminum wire.
6. The coil according to claim 4, characterized in that The flat wire is wound in a triangle, square or circle shape.
7. The coil according to claim 1, characterized in that In a plane perpendicular to the axis of the coil, the projections of the input pins of the plurality of sub-coils overlap, and the projections of the output pins of the plurality of sub-coils overlap.
8. The coil according to any one of claims 1 to 7, characterized in that: The plurality of sub-coils are integrated into one body.
9. An electronic component, characterized in that: The electronic component comprises a coil as claimed in any one of claims 1 to 8, wherein the electronic component comprises an inductor or a transformer.
10. An electronic device, characterized in that: Comprising the electronic component as claimed in claim 9.