A transformer and electrical equipment

Abstract

This application relates to the field of transformer technology, and specifically discloses a transformer and electrical equipment, including an outer support with a first winding post for winding a first winding, the first winding post having a hollow slot with openings at both ends; an inner support with a second winding post, the second winding post being sleeved inside the first winding post through the hollow slot, the second winding post being for winding a second winding, the second winding post having a hollow cavity; and a magnetic core, the magnetic core including a magnetic column, the magnetic column passing through the hollow cavity and through the second winding post. Through the above method, this application embodiment enables a more compact transformer structure and reduces the overall size of the transformer.

Description

Technical Field

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

[0002] A transformer is a device that uses the principle of electromagnetic induction to change alternating current voltage. Its main components are the primary coil, secondary coil, and iron core (magnetic core). LLC (resonant) transformers are characterized by their ability to operate under no-load conditions and to reflect the load weight through resonant tank current. LLC transformers are an improvement on traditional LC second-order resonant transformers by adding a parallel inductor, offering advantages such as high switching frequency, low switching losses, a wide permissible input voltage range, and high efficiency.

[0003] In the process of realizing this application, the inventors discovered that transformers in related technologies are large in size, easily occupy the internal space of electrical equipment, and affect the installation of other electronic devices inside the electrical equipment, which is quite inconvenient. Utility Model Content

[0004] In view of the above problems, the present application provides a transformer and electrical equipment that overcomes or at least partially solves the above problems.

[0005] According to one aspect of this application, a transformer is provided, including an outer support having a first winding post for winding a first winding, the first winding post having a hollow slot with openings at both ends; an inner support having a second winding post, the second winding post being sleeved inside the first winding post through the hollow slot, the second winding post being for winding a second winding, the second winding post having a hollow cavity; and a magnetic core including a magnetic column passing through the hollow cavity and through the second winding post.

[0006] In one alternative configuration, the first winding post and the second winding post are coaxially distributed.

[0007] In one alternative embodiment, the outer support is provided with a plurality of spaced-apart first connecting terminals, and the first winding is connected to the first connecting terminals; and / or, the inner support is provided with a plurality of spaced-apart second connecting terminals, and the second winding is connected to the second connecting terminals.

[0008] In one alternative embodiment, the outer support is provided with a plurality of spaced-apart first wire-passing grooves, through which the wires of the first winding can pass through the outer support; and / or, the inner support is provided with a plurality of spaced-apart second wire-passing grooves, through which the wires of the second winding can pass through the inner support.

[0009] In one alternative embodiment, the magnetic core includes a first magnetic core and a second magnetic core, which are disposed opposite to each other. The first magnetic core includes a first magnetic post, and the second magnetic core includes a second magnetic post. The first magnetic post extends into the hollow cavity from one end, and the second magnetic post extends into the hollow cavity from the other end and abuts against the first magnetic post. The first magnetic post and the second magnetic post abut against each other to form the magnetic post.

[0010] In one alternative embodiment, a support plate is provided at one end of the first winding post away from the outer bracket, and a first limiting groove is provided on the side of the support plate away from the first winding post, wherein the first magnetic core is at least partially located within the first limiting groove to engage with the support plate for limiting.

[0011] In one alternative embodiment, the outer support is provided with a second limiting groove on the side opposite to the first winding post, and the second magnetic core is at least partially located within the second limiting groove to engage with the outer support for limiting.

[0012] In one alternative embodiment, the outer support has a recessed groove on its side away from the first winding post, the recessed groove being connected to the hollow groove, and the inner support being assembled within the recessed groove; the recessed groove is located within the second limiting groove.

[0013] In one alternative embodiment, a limiting plate is further provided on the second winding post, the limiting plate being located at one end of the second winding post away from the inner support, and the limiting plate abutting against the bottom of the hollow groove.

[0014] According to another aspect of this application, an electrical appliance is provided, including a transformer as described above.

[0015] The beneficial effects of this application embodiment are as follows: Unlike the prior art, this application embodiment includes an outer support, an inner support, and a magnetic core. The outer support has a first winding post for winding a first winding, and the first winding post has a hollow slot with openings at both ends. The inner support has a second winding post, which is fitted inside the first winding post through the hollow slot. The second winding post is used to wind a second winding, and the second winding post has a hollow cavity. The magnetic core includes a magnetic column, which passes through the hollow cavity and then through the second winding post. The second winding post in this application, fitted inside the first winding post, allows the transformer to achieve a higher winding density within a limited space. This nesting method fully utilizes the internal volume of the transformer, reducing its overall size and making the transformer structure more compact. This reduces the space occupied by the transformer within the electrical equipment, thus ensuring the normal installation of other electronic devices inside the electrical equipment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is a partial structural diagram of the transformer according to an embodiment of this application from an angle;

[0018] Figure 2 This is a schematic diagram of a portion of the transformer structure according to an embodiment of this application from another angle;

[0019] Figure 3 This is an exploded view of the overall structure of the transformer according to an embodiment of this application;

[0020] Figure 4 This is another exploded view of the overall structure of the transformer according to an embodiment of this application;

[0021] Figure 5 This is a partial structural exploded view of the transformer in an embodiment of this application. Detailed Implementation

[0022] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0024] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0025] Please see Figures 1-3The transformer 1000 includes an outer support 10, an inner support 20, and a magnetic core 30. The outer support 10 and the inner support 20 are connected to each other. One part of the magnetic core 30 is located on the outer support 10, and the other part of the magnetic core 30 is located on the inner support 20. The two parts of the magnetic core 30 are connected to each other.

[0026] The transformer 1000 also includes a first winding 40 and a second winding 50. The first winding 40 is mounted on the outer support 10, and the second winding 50 is mounted on the inner support 20.

[0027] For the aforementioned outer support 10, inner support 20, first winding 40, and second winding 50, as follows: Figure 3 and Figure 4 As shown, the outer support 10 and the inner support 20 are interconnected. The outer support 10 is provided with a first winding post 101, which is used to wind the first winding 40. The first winding post 101 is provided with a hollow groove 101a with openings at both ends. The inner support 20 is located on the side of the outer support 10 away from the first winding post 101. The inner support 20 is provided with a second winding post 201, which is sleeved inside the first winding post 101 through the hollow groove 101a. The second winding post 201 is used to wind the second winding 50. The second winding post 201 is provided with a hollow cavity 201a, which is interconnected with the hollow groove 101a. It can be understood that the connection between the outer support 10 and the inner support 20 includes, but is not limited to, adhesive bonding, screwing, riveting, snap-fitting, etc.

[0028] In some embodiments, the first winding post 101 and the second winding post 201 are coaxially distributed. The coaxial winding posts can ensure that the magnetic field is more evenly distributed inside the winding, and the coaxial winding posts can also effectively reduce leakage inductance between windings.

[0029] In some embodiments, the outer bracket 10 is further provided with a plurality of spaced-apart first connection terminals 102, which are connected to the first winding 40. It is understood that in some other embodiments, the first connection terminals 102 may be omitted, and the first winding 40 may be directly connected to an external device.

[0030] In some embodiments, the inner support 20 is further provided with a plurality of second connection terminals 202, which are spaced apart and connected to the second winding 50. It is understood that the first winding 40 can be a primary winding or a secondary winding, and the second winding 50 can be a secondary winding or a primary winding; specific limitations are not imposed in this application. For example, the first winding 40 can be a primary winding, and the second winding 50 can be a secondary winding. The first connection terminal 102 connected to the first winding 40 is used for connecting an external power supply, and the second connection terminal 202 connected to the second winding 50 is used for connecting an external load. In some embodiments, both the first connection terminal 102 and the second connection terminal 202 are L-shaped. It is understood that in some other embodiments, the second connection terminal 202 can be omitted, and the second winding 50 can be directly connected to an external device.

[0031] In some embodiments, the outer bracket 10 is provided with a plurality of spaced-apart first wire guide slots 102a. The first winding 40 passes through the outer bracket 10 via the first wire guide slots 102a and can be connected to an external device after passing through the outer bracket 10. It is understood that in some other embodiments, the first wire guide slots 102a may be omitted, and the first winding 40 may be connected to the external device via the first connection terminal 102. In some embodiments, the opening of the first wire guide slot 102a is arc-shaped, which can reduce contact wear between the wire of the first winding 40 and the outer bracket 10.

[0032] In some embodiments, please refer to the following: Figure 5 The inner support 20 is provided with a plurality of spaced-apart second wire guide slots 202a. The wires of the second winding 50 can pass through the inner support 20 via the second wire guide slots 202a. After passing through the inner support 20, the second winding 50 can be connected to an external device. It is understood that in some other embodiments, the second wire guide slots 202a may be omitted, and the second winding 50 can be connected to the external device via the second connection terminal 202. In some embodiments, the inner support 20 is also provided with an inclined slot 202b, which communicates with the second wire guide slots 202a. The inclined slot 202b is located at the opening of the second wire guide slot 202a. The inclined slot 202b allows the wires of the second winding 50 to pass through into the second wire guide slot 202a, and the inclined slot 202b can reduce the contact wear between the wires of the second winding 50 and the inner support 20.

[0033] For the aforementioned magnetic core 30, such as Figure 2 and Figure 3As shown, the magnetic core 30 includes a magnetic post that passes through the second winding post 201 via the hollow cavity 201a. The magnetic core 30 includes a first magnetic core 301 and a second magnetic core 302, which are arranged opposite to each other. The first magnetic core 301 includes a first magnetic post 3011, and the second magnetic core 302 includes a second magnetic post 3021. The first magnetic post 3011 extends into the hollow cavity 201a from one end, thereby mounting the first magnetic core 301 onto the outer support 10. The second magnetic post 3021 extends into the hollow cavity 201a from the other end and abuts against the first magnetic post 3011, thereby mounting the second magnetic core 302 onto the inner support 20. It should be noted that: the first magnetic post 3011 extends from the first magnetic core 301 toward the outer support 10, and the second magnetic post 3021 extends from the second magnetic core 302 toward the inner support 20. The first magnetic post 3011 and the second magnetic post 3021 abut against each other to form the magnetic post in the magnetic core 30.

[0034] In some embodiments, a support plate 103 is provided at one end of the first winding post 101 away from the outer bracket 10, the first magnetic core 301 abuts against the support plate 103, and a first mounting space 10a is formed between the support plate 103 and the outer bracket 10. At least a portion of the first winding 40 is located in the first mounting space 10a. The support plate 103 is used to support the first magnetic core 301 so that the first magnetic core 301 can be mounted on the outer bracket 10. The first mounting space 10a can be used to accommodate the first winding 40 and can provide clearance space for the winding of the first winding 40.

[0035] In some embodiments, the support plate 103 is provided with a first limiting protrusion 1031 and a second limiting protrusion 1032 on the side opposite to the outer bracket 10. A first limiting groove 103a is formed between the first limiting protrusion 1031 and the second limiting protrusion 1032. The first magnetic core 301 is at least partially located in the first limiting groove 103a to limit and cooperate with the support plate 103. The first limiting groove 103a can limit the first magnetic core 301, reduce the movement of the first magnetic core 301, and facilitate the installation of the first magnetic core 301.

[0036] In some embodiments, the outer bracket 10 is provided with a second limiting groove 10c on the side opposite to the first winding post 101. The second magnetic core 302 is at least partially located in the second limiting groove 10c to cooperate with the outer bracket 10 for limiting. The second limiting groove 10c can limit the second magnetic core 302, reduce the movement of the second magnetic core 302, and facilitate the installation of the second magnetic core 302.

[0037] In some embodiments, the outer bracket 10 has a recessed groove 10b on its side opposite to the first winding post 101. The recessed groove 10b connects to the hollow groove 101a, and the inner bracket 20 is assembled within the recessed groove 10b. The recessed groove 10b is used for mounting the inner bracket 20, and at the same time, the recessed groove 10b can reduce the overall thickness between the outer bracket 10 and the inner bracket 20. In some embodiments, the recessed groove 10b is located within the second limiting groove 10c.

[0038] In some embodiments, a limiting plate 203 is further provided on the second winding post 201. The limiting plate 203 is located at the end of the second winding post 201 facing away from the inner support 20, and abuts against the bottom of the hollow groove 101a. A second mounting space 20a is formed between the limiting plate 203 and the inner support 20, and at least a portion of the second winding 50 is located within the second mounting space 20a. During the installation of the second winding post 201 in the hollow groove 101a, the limiting plate 203 can limit its movement to reduce further movement of the second winding post 201 within the hollow groove 101a. The second mounting space 20a can be used to accommodate the second winding 50 and can provide clearance space for the winding of the second winding 50.

[0039] In this embodiment of the application, an outer support 10, an inner support 20, and a magnetic core 30 are provided. The outer support 10 is provided with a first winding post 101, which is used to wind the first winding 40. The first winding post 101 is provided with a hollow groove 101a with openings at both ends. The inner support 20 is provided with a second winding post 201, which is sleeved inside the first winding post 101 through the hollow groove 101a. The second winding post 201 is used to wind the second winding 50, and is provided with a hollow cavity 201a. The magnetic core 30 includes a magnetic post, which passes through the second winding post 201 through the hollow cavity 201a. In this application, the second winding post 201 is sleeved inside the first winding post 101, which allows the transformer to achieve a higher winding density in a limited space. By using this nesting method, the internal volume of the transformer can be fully utilized, the overall size of the transformer can be reduced, and the structure of the transformer can be made more compact, reducing the internal space occupied by the transformer in the electrical equipment, thereby ensuring the normal installation of other electronic equipment inside the electrical equipment.

[0040] This application also provides an embodiment of an electrical device, which includes the transformer 1000 as described above. The function and structure of the transformer 1000 can be found in the above embodiments, and will not be repeated here.

[0041] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A transformer, characterized by include: The outer support is provided with a first winding post, which is used to wind the first winding. The first winding post is provided with a hollow groove with openings at both ends. The inner support is provided with a second winding post, which is sleeved inside the first winding post through the hollow groove. The second winding post is used to wind the second winding, and a hollow cavity is provided on the second winding post. A magnetic core, the magnetic core comprising a magnetic post that passes through the hollow cavity and through the second winding post.

2. The transformer according to claim 1, characterized in that, The first winding post and the second winding post are coaxially distributed.

3. The transformer according to claim 1, characterized in that, The outer support is provided with a plurality of spaced-apart first connection terminals, and the first winding is connected to the first connection terminals; and / or, The inner support is provided with a plurality of spaced second connection terminals, and the second winding is connected to the second connection terminals.

4. The transformer according to claim 1, characterized in that, The outer support is provided with a plurality of spaced-apart first wire-passing grooves, through which the wires of the first winding can pass through the outer support; and / or The inner support is provided with a plurality of spaced second wire passage slots, through which the wires of the second winding can pass through the inner support.

5. The transformer according to claim 1, characterized in that, The magnetic core includes a first magnetic core and a second magnetic core, which are disposed opposite to each other. The first magnetic core includes a first magnetic post, and the second magnetic core includes a second magnetic post. The first magnetic post extends into the hollow cavity from one end of the hollow cavity, and the second magnetic post extends into the hollow cavity from the other end of the hollow cavity and abuts against the first magnetic post. The first magnetic post and the second magnetic post abut against each other to form the magnetic post.

6. The transformer according to claim 5, characterized in that, A support plate is provided at one end of the first winding post away from the outer bracket, and a first limiting groove is provided on the side of the support plate away from the first winding post. The first magnetic core is at least partially located in the first limiting groove to cooperate with the support plate for limiting.

7. The transformer according to claim 6, characterized in that, The outer bracket is provided with a second limiting groove on the side opposite to the first winding post, and the second magnetic core is at least partially located in the second limiting groove to cooperate with the outer bracket for limiting.

8. The transformer according to claim 7, characterized in that, The outer support has a recessed groove on the side opposite to the first winding post, the recessed groove is connected to the hollow groove, and the inner support is assembled in the recessed groove. The recessed groove is located within the second limiting groove.

9. The transformer according to claim 8, characterized in that, The second winding post is also provided with a limiting plate, which is located at the end of the second winding post away from the inner support, and the limiting plate abuts against the bottom of the hollow groove.

10. An electrical appliance, characterized in that, The transformer includes any one of claims 1-9.

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