Transformer framework and transformer

Abstract

The utility model provides a transformer framework and a transformer. The transformer framework comprises a framework main body, the wire rod fixing part extends from the base of the framework main body to the radial outer side and is provided with a plurality of bent groove parts which penetrate through the wire rod fixing part in the axial direction and clamp a part of a wire rod, and each bent groove part is provided with a guide part and a clamping part which are communicated with each other; the guide part is formed by sinking from the radial outer side edge of the wire rod fixing part to the framework main body, and a bending angle is formed at the communication part of the clamping part and the guide part. According to the embodiment of the invention, the whole operation period can be shortened, the risk of touching other stations by mistake is avoided, and the waste cost can be reduced.

Description

Technical Field

[0001] This application relates to the field of electrical equipment technology, and in particular to a transformer frame and a transformer. Background Technology

[0002] A transformer is a device that uses the principle of electromagnetic induction to change alternating current voltage. It is mainly composed of primary wire (coil), secondary wire, transformer frame, and iron core (magnetic core).

[0003] For a typical transformer frame, after the wire is wound onto the transformer frame, in order to further improve the transformer conversion efficiency, the winding is usually straight out. The lead-out part (Pin) of the wire is placed at the edge of the transformer frame (for example, a notch is set at the edge and the lead-out part is placed at the notch), and then the lead-out part is fixed by applying glue.

[0004] It should be noted that the above description of the background technology is only for the purpose of providing a clear and complete explanation of the technical solutions of this application and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background technology section of this application. Utility Model Content

[0005] The inventors discovered that in the existing fixing schemes for the lead-out portion of the wire, the adhesive requires a certain amount of time to cure, resulting in a long overall operation cycle. Furthermore, during the curing period of the adhesive, the lead-out portion is easily deformed by external forces or other work stations (e.g., magnetic core assembly, tape application, labeling, etc.), which may lead to the failure of the transformer.

[0006] To address one of the aforementioned problems or other similar issues, embodiments of this application provide a transformer frame and a transformer. Since no adhesive is required for fixation, there is no adhesive curing time, which reduces the overall work cycle and eliminates the risk of accidental contact with other workstations, thereby reducing waste costs.

[0007] According to a first aspect of the present application, a transformer frame is provided, wherein the transformer frame includes: a frame body; a wire fixing part, the wire fixing part extending radially outward from the base of the frame body, having a plurality of curved grooves that axially penetrate the wire fixing part and clamp a portion of the wire, the curved grooves having a communicating guide part and a clamping part, the guide part being recessed from the radially outer edge of the wire fixing part toward the frame body, and the connection between the clamping part and the guide part having a bending angle.

[0008] In some embodiments, the number of the bending grooves is even, and every two bending grooves form a group, with the clamping portion of each bending groove in each group bending toward the other bending groove in that group.

[0009] In some embodiments, the number of the bending grooves is even, and the clamping portion of each bending groove bends in the same direction relative to the guide portion of the bending groove.

[0010] In some embodiments, the connection between the locking portion and the guide portion is an arc connection or has a chamfer.

[0011] In some embodiments, when viewed axially, the end of the locking portion away from the communication portion is arc-shaped.

[0012] In some embodiments, when viewed axially, the width of the end of the clamping portion away from the communication point is the same as the diameter of the wire.

[0013] In some embodiments, when viewed axially, the maximum width of the connecting portion is less than the maximum width of the locking portion, and the maximum width of the locking portion is less than the maximum width of the guide portion.

[0014] In some embodiments, the wire is a triple-insulated wire.

[0015] In some embodiments, the bending angle is 75° to 105°.

[0016] According to a second aspect of the embodiments of this application, a transformer is provided, the transformer including the transformer frame described in the first aspect above.

[0017] One of the beneficial effects of this application embodiment is that, according to this application embodiment, by providing a wire fixing part with a curved groove, the curved groove having a connecting guide part and a clamping part with a bending angle therebetween, the lead-out part of the wire can be reliably fixed, simplifying the pin-hanging process of the transformer bobbin, reducing the overall operation cycle of the transformer pin-hanging, and the lead-out part of the wire will not cause accidental contact with other work stations, thus reducing waste costs.

[0018] Specific embodiments of this application are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of this application can be adopted. It should be understood that the embodiments of this application are not limited in scope. Within the spirit and scope of the appended claims, embodiments of this application include many changes, modifications, and equivalents. Attached Figure Description

[0019] The accompanying drawings, which form part of the specification, are used to provide a further understanding of the embodiments of this application and illustrate the implementation methods of this application, together with the textual description, to explain the principles of this application. Obviously, the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0020] Figure 1 This is a schematic diagram of a transformer frame according to an embodiment of the first aspect of this application, showing a three-dimensional schematic diagram of the transformer frame;

[0021] Figure 2 This is another schematic diagram of a transformer frame according to an embodiment of the first aspect of this application, showing a top view of the transformer frame as viewed from above. Detailed Implementation

[0022] Referring to the accompanying drawings, the foregoing and other features of this application will become apparent from the following description. Specific embodiments of this application are specifically disclosed in the description and drawings, illustrating partial implementations in which the principles of this application may be employed. It should be understood that this application is not limited to the described embodiments; rather, it includes all modifications, variations, and equivalents falling within the scope of the appended claims.

[0023] In the embodiments of this application, the terms "first," "second," etc., are used to distinguish different elements by name, but do not indicate the spatial arrangement or chronological order of these elements, and these elements should not be limited by these terms. The term "and / or" includes any one or more of the terms listed in association and all combinations thereof. The terms "comprising," "including," "having," etc., refer to the presence of the stated features, elements, components, or assemblies, but do not exclude the presence or addition of one or more other features, elements, components, or assemblies.

[0024] In the embodiments of this application, the singular forms "a," "the," etc., including the plural forms, should be broadly understood as "a kind" or "a class" rather than limited to the meaning of "an." Furthermore, the term "the" should be understood to include both the singular and plural forms, unless the context explicitly indicates otherwise. Additionally, the term "according to" should be understood as "at least partially based on…," and the term "based on" should be understood as "at least partially based on…," unless the context explicitly indicates otherwise.

[0025] In the following description of this application, unless otherwise stated, the direction extending along or parallel to the central axis of the transformer frame will be referred to as the "axial direction" (as follows). Figure 2The direction of extension of O in the diagram is defined as follows: the orientation of the wire fixing part within the transformer frame is called the lower axial side (bottom); the side of the transformer frame opposite in axial direction to the orientation of the wire fixing part is called the upper axial side (top); the radial direction centered on the central axis is called "radial"; the direction closer to the central axis is called "radial inner side" or "inner side"; the direction farther from the central axis is called "radial outer side" or "outer side"; and the direction around the central axis is called "circumferential". It is important to note that these are for illustrative purposes only and do not limit the orientation of the transformer frame and / or the transformer during use and manufacture.

[0026] The embodiments of this application will now be described with reference to the accompanying drawings. These embodiments are merely exemplary and are not intended to limit the scope of this application.

[0027] First aspect of the embodiments

[0028] An embodiment of the first aspect of this application provides a transformer frame.

[0029] Figure 1 This is a schematic diagram of a transformer frame according to an embodiment of the first aspect of this application, showing a three-dimensional schematic diagram of the transformer frame; Figure 2 This is another schematic diagram of a transformer frame according to an embodiment of the first aspect of this application, showing a top view of the transformer frame as viewed from above.

[0030] like Figure 1 and Figure 2 As shown, the transformer frame 1 may include: a frame body 10 and a wire fixing part 20, wherein the wire fixing part 20 extends radially outward from the base 101 of the frame body 10, and the wire fixing part 20 has a plurality of curved grooves 201 that penetrate the wire fixing part 20 axially and are capable of clamping a portion of the wire (not shown), that is, the curved grooves 201 are capable of clamping a portion of the wire (the lead-out portion of the wire, or the pin) therein; the curved grooves 201 have communicating guides Part 2011 and clamping part 2012, guide part 2011 is recessed from the radial outer edge E1 of wire fixing part 20 toward skeleton body 10, clamping part 2012 and guide part 2011 have a bending angle A at the connection point P, that is, the connection point P between clamping part 2012 and guide part 2011 is not straight, clamping part 2012 extends from the end of guide part 2111 away from the radial outer edge E1 of wire fixing part 20 in a direction different from the recessing direction of guide part 2011.

[0031] According to the above embodiment, by providing a wire fixing part 20 with a bending groove 201, the bending groove 201 has a guide part 2011 and a clamping part 2012 that are connected therebetween with a bending angle A, thereby reliably fixing the lead-out part of the wire, simplifying the pin-hanging process of the transformer frame, reducing the overall operation cycle of the transformer pin-hanging, and preventing the lead-out part of the wire from accidentally touching other work stations, thus reducing the waste cost.

[0032] In this embodiment of the application, when fixing the lead-out portion of the wire, the lead-out portion can first be pressed against the recessed direction of the guide portion 2011, and then the lead-out portion is locked in the locking portion 2012 through the communication P between the guide portion 2011 and the locking portion 2012. Since there is a bending angle between the guide portion 2011 and the locking portion 2012, the lead-out portion can be firmly set in the locking portion 2012, thereby reliably fixing the lead-out portion of the wire.

[0033] In the embodiments of this application, such as Figure 1 and Figure 2 As shown, the left side of the transformer frame 1 is the primary side and the right side is the secondary side. In the figure, only the secondary side is provided with a bending groove 201 for fixing the lead-out portion of the wire. However, this application is not limited to this. That is, a wire fixing part 20 with a bending groove 201 can also be provided on the primary side to fix the lead-out portion of the wire on the primary side.

[0034] In this embodiment, due to the winding method of the wires on the transformer frame 1, it is necessary to limit and fix the lead-out portions at both ends of each wire. That is, the number of bending grooves 201 used to limit and fix the lead-out portions of the wires needs to be an even number. Figure 1 and Figure 2 In this embodiment, there are four curved grooves 201, but this application is not limited to this; the number of curved grooves 201 can be any even number. Each pair of curved grooves 201 forms a group (e.g., Figure 2 The bending grooves 201-1 and 201-2 form a group. The clamping part 2012 of each bending groove in each group of bending grooves 201 bends toward the other bending groove 201 in that group. That is, with... Figure 2 Taking a set of curved grooves 201-1 and 201-2 as an example, the clamping part 2012 of the first curved groove 201-1 in the set of curved grooves is bent toward the direction of the second curved groove 201-2 in the set of curved grooves, while the clamping part 2012 of the second curved groove 201-2 in the set of curved grooves is bent toward the direction of the first curved groove 201-1 in the set of curved grooves. That is, the bending direction of the clamping part 2012 in each set of curved grooves 201 is relative.

[0035] In this way, the bending direction of the clamping part 2012 in each set of bending grooves 201 is set in a way that is more convenient to operate, thereby producing a better fixing effect and facilitating mass production.

[0036] In this embodiment, the bending direction of the clamping portion 2012 in the bending groove 201 is not limited to... Figure 1 and Figure 2 As shown, for example, the clamping portion 2012 of each curved groove 201 bends in the same direction relative to the guide portion 2011 of the curved groove 201. That is, the bending direction of the clamping portion 2012 in each curved groove 201 relative to the guide portion 2011 is the same, for example, they all bend in the same direction. Figure 2 The lower side of the middle bends, or both are towards Figure 2 The upper side of the curve is bent.

[0037] This facilitates mold design and simplifies the process.

[0038] In this embodiment, the connection point P between the locking part 2012 and the guide part 2011 can be an arc connection or have a chamfer, for example, as shown. Figure 1 and Figure 2 As shown, the connection point P between the clamping part 2012 and the guide part 2011 closer to the skeleton body 10 is set as an arc connection, while the connection point P between the clamping part 2012 and the guide part 2011 further away from the skeleton body 10 is designed with a chamfer.

[0039] In this way, when the lead-out portion of the wire is fixed to the clamping portion 2012 at the connection point P between the guide portion 2011 and the clamping portion 2012, damage to the lead-out portion of the wire can be prevented.

[0040] In the embodiments of this application, such as Figure 1 and Figure 2 As shown, when viewed along the axial direction, the end E2 of the clamping part 2012 away from the connecting point P is arc-shaped.

[0041] This allows the end E2 of the clamping part 2012 to be adapted to the outer diameter shape of the wire, thereby producing a better fixing effect.

[0042] In the embodiments of this application, such as Figure 1 and Figure 2 As shown, when viewed axially, the width of the end E2 of the clamping part 2012 away from the connection point P is approximately the same as the diameter of the wire, or the width of the end E2 of the clamping part 2012 away from the connection point P is slightly smaller than the diameter of the wire.

[0043] This allows the end E2 of the clamping part 2012 to be matched with the outer diameter of the wire, making it less likely for the wire to fall out of the clamping part 2012, thus producing a better fixing effect.

[0044] In the embodiments of this application, such as Figure 1 and Figure 2 As shown, viewed axially, the maximum width of the connecting portion P is less than the maximum width of the clamping portion 2012, and the maximum width of the clamping portion 2012 is less than the maximum width of the guide portion 2011. In other words, the bending groove 201 has the largest width at the guide portion 2011 and the smallest width at the connecting portion P. Thus, by maximizing the width of the guide portion 2011, the lead-out portion of the wire can easily enter the bending groove 201. By setting the maximum width of the connecting portion P to be smaller than the maximum width of the clamping portion 2012, the lead-out portion of the wire can be prevented from falling out of the clamping portion 2012, thereby further improving the fixing effect.

[0045] In the embodiments of this application, the wire can be any coil winding material, such as Litz wire.

[0046] In this field, safety regulations stipulate that the magnetic core must not contact either the primary or secondary winding, and a certain distance must be maintained between the magnetic core and both the primary and secondary windings. Existing technologies use ordinary wire (which safety regulations consider to be uninsulated), requiring a relatively large distance between the magnetic core and the primary and secondary windings, thus increasing the overall size of the transformer. In other words, while the wire fixing part 20 of this application can reliably fix the wire lead-out portion if ordinary Litz wire is used, the ordinary wire will result in a larger overall transformer size.

[0047] In this embodiment of the application, preferably, the wire is a triple-insulated wire.

[0048] In this application, since the wire uses triple-insulated wire, the wire meets safety requirements from the source. Since there is no need to wrap additional insulation tape around the wire for triple-insulated wire, the overall size of the transformer can be reduced.

[0049] In this embodiment, the bending angle A between the clamping part 2012 and the guide part 2011 can be 75° to 105°. This ensures that the lead-out portion of the wire does not easily slide out from the clamping part 2012 to the guide part 2011, thereby further producing a better fixing effect. Preferably, the bending angle A can be 90°.

[0050] In this embodiment, the thickness of the wire fixing part 20 in the axial direction can be set according to the actual needs of the wire lead-out part.

[0051] The above description only illustrates the configuration of the transformer frame related to the embodiments of this application. This application is not limited to this. The transformer frame may also include other conventional configurations. For details, please refer to the relevant technology. The description is omitted here.

[0052] According to the embodiment of this application, the transformer frame is provided with a wire fixing part 20 having a bending groove 201. The bending groove 201 has a guide part 2011 and a clamping part 2012 that are connected therebetween with a bending angle A. This can reliably fix the lead-out part of the wire, simplify the pin-hanging process of the transformer frame, reduce the overall operation cycle of pin-hanging the transformer, and prevent the lead-out part of the wire from accidentally touching other work stations, thereby reducing the scrap cost.

[0053] Second aspect of the embodiments

[0054] The second aspect of this application provides a transformer, which includes the transformer frame 1 described in the first aspect. Since the main structure of the transformer frame 1 has been described in detail in the first aspect, its contents are included herein and will not be repeated here.

[0055] The above description only illustrates the configuration of the transformer in the embodiments of this application. This application is not limited to this. The transformer may also include other conventional configurations. For details, please refer to the relevant technology. The description is omitted here.

[0056] According to the embodiments of this application, the transformer is provided with a wire fixing part 20 having a bending groove 201. The bending groove 201 has a guide part 2011 and a clamping part 2012 that are connected therebetween with a bending angle A. This can reliably fix the lead-out part of the wire, simplify the pin-hanging process of the transformer frame, reduce the overall operation cycle of pin-hanging the transformer, and prevent the lead-out part of the wire from accidentally touching other work stations, thereby reducing the scrap cost.

[0057] The present application has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present application. Those skilled in the art can make various modifications and variations to the present application based on its spirit and principles, and these modifications and variations are also within the scope of the present application.

[0058] Preferred embodiments of this application have been described above with reference to the accompanying drawings. Many features and advantages of these embodiments are apparent from this detailed description, and therefore the appended claims are intended to cover all such features and advantages of these embodiments that fall within their true spirit and scope. Furthermore, since many modifications and alterations will readily occur to those skilled in the art, the embodiments of this application are not intended to be limited to the precise structures and operations illustrated and described, but rather to encompass all suitable modifications and equivalents falling within their scope.

Claims

1. A transformer core, characterized by The transformer frame comprises: a frame body; a wire fixing portion extending radially outward from a base of the frame body, having a plurality of curved groove portions penetrating the wire fixing portion in an axial direction and clamping a portion of a wire, the curved groove portion has a guide portion and a clamping portion connected in communication, the guide portion is recessed from a radially outer edge of the wire fixing portion to the direction of the frame body, and the clamping portion has a curved angle at the communication with the guide portion.

2. The transformer skeleton according to claim 1, characterized in that The number of the curved groove portions is even, and each two of the curved groove portions form a group, and the clamping portion of each curved groove portion in each group of curved groove portions is curved toward another curved groove portion in the group.

3. The transformer skeleton according to claim 1, characterized in that The number of the curved groove portions is even, and the clamping portion of each curved groove portion is curved in the same direction relative to the guide portion of the curved groove portion.

4. The transformer skeleton according to claim 1, characterized in that, The communication between the clamping portion and the guide portion is a circular arc connection or has a chamfer.

5. The transformer skeleton according to claim 1, characterized in that, The end of the clamping portion away from the communication is circular arc-shaped when viewed in the axial direction.

6. The transformer skeleton according to claim 5, characterized in that The width of the end of the clamping portion away from the communication is the same as the diameter of the wire when viewed in the axial direction.

7. The transformer skeleton according to claim 1, characterized in that, The maximum width of the communication is smaller than the maximum width of the clamping portion, and the maximum width of the clamping portion is smaller than the maximum width of the guide portion when viewed in the axial direction.

8. The transformer skeleton according to claim 1, characterized in that The wire is a three-layer insulated wire.

9. The transformer skeleton according to claim 1, characterized in that, The curved angle is 75°-105°.

10. A transformer, characterized by The transformer comprises the transformer frame according to any one of claims 1-9.

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