Integrated transformer and electrical equipment
Through the integrated transformer design, the electrical clearance and creepage distance between the coils are enhanced by using isolation plates, which solves the problem of insufficient electrical clearance and creepage distance of existing transformers and ensures safe and stable operation of the transformer.
Patent Information
- Application Number
- CN202422766654.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-11-12
AI Technical Summary
The electrical clearance and creepage distance of existing transformers often fail to meet the requirements, affecting the safety and stability of the equipment.
The integrated transformer design includes a housing, a fixing base, a magnetic core, a multi-layer isolation plate, and a coil. The isolation plate enhances the electrical clearance and creepage distance between the coils to meet higher voltage requirements.
The electrical clearance and creepage distance of the transformer are increased, the insulation performance is enhanced, and the safe and stable operation of the transformer is ensured.
Smart Images
Figure CN223390355U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of transformers, and in particular relates to an integrated transformer and electrical equipment. Background Art
[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are an iron core (also called a magnetic core) and multiple coils. Currently, the electrical clearance and creepage distances of existing transformers often do not meet the requirements. Utility Model Content
[0003] The utility model provides an integrated transformer and electrical equipment, aiming to solve the technical problem that the electrical clearance and creepage distance of the existing transformer often fail to meet the requirements.
[0004] The utility model is implemented as follows: an integrated transformer is provided, comprising:
[0005] shell;
[0006] a fixing seat disposed in the housing;
[0007] a first magnetic core and a second magnetic core disposed in the fixing seat;
[0008] a first isolation plate, a first coil, a second isolation plate, a second coil, a third isolation plate, a third coil, a fourth isolation plate, a fourth coil, and a fifth isolation plate disposed between the first magnetic core and the second magnetic core;
[0009] Among them, the first magnetic core, the first isolation plate, the first coil, the second isolation plate, the second coil, the third isolation plate, the third coil, the fourth isolation plate, the fourth coil, the fifth isolation plate and the second magnetic core are arranged in sequence.
[0010] In some embodiments, the first coil, the second coil, the third coil, and the fourth coil are all disc coils.
[0011] In some embodiments, the first coil includes a first coil body and a first lead extending from the first coil body and at least partially extending out of the housing, the fourth coil includes a fourth coil body and a second lead extending from the fourth coil body and at least partially extending out of the housing, and the first coil body and the fourth coil body are connected by a third lead.
[0012] In certain embodiments, the second coil includes a second coil body and fourth and fifth leads extending from the second coil body and at least partially out of the housing.
[0013] In certain embodiments, the third coil includes a third coil body and sixth and seventh leads extending from the third coil body and at least partially out of the housing.
[0014] In some embodiments, the first magnetic core includes a first magnetic core body and a first magnetic column arranged in the middle position of the first magnetic core body, the second magnetic core includes a second magnetic core body and a second magnetic column arranged in the middle position of the second magnetic core body, the first isolation plate, the first coil, the second isolation plate, the second coil and part of the third isolation plate are mounted on the first magnetic column, and part of the third isolation plate, the third coil, the fourth isolation plate, the fourth coil and the fifth isolation plate are mounted on the second magnetic column.
[0015] In some embodiments, the first isolation plate is staggeredly provided with a first radial slot toward the first magnetic core and a second radial slot toward the first coil, and the second isolation plate is staggeredly provided with a third radial slot toward the first coil and a fourth radial slot toward the second coil.
[0016] In some embodiments, the third isolation plate is staggeredly provided with a fifth radial slot facing the second coil and a sixth radial slot facing the third coil.
[0017] In some embodiments, the fourth isolation plate is staggeredly provided with a seventh radial slot toward the third coil and an eighth radial slot toward the fourth coil, and the fifth isolation plate is staggeredly provided with a ninth radial slot toward the fourth coil and a tenth radial slot toward the second magnetic core.
[0018] The utility model also provides an electrical device, comprising the integrated transformer as described in any one of the above embodiments.
[0019] The utility model provides an integrated transformer, comprising a shell, a first magnetic core, a second magnetic core, and a first isolation plate, a first coil, a second isolation plate, a second coil, a third isolation plate, a third coil, a fourth isolation plate, a fourth coil and a fifth isolation plate arranged between the first magnetic core and the second magnetic core. The first magnetic core, the first isolation plate, the first coil, the second isolation plate, the second coil, the third isolation plate, the third coil, the fourth isolation plate, the fourth coil, the fifth isolation plate and the second magnetic core are arranged in sequence. Through the isolation effect of the first isolation plate, the second isolation plate, the third isolation plate, the fourth isolation plate and the fifth isolation plate, the electrical clearance and creepage distance between the coils are solved, and higher voltage resistance requirements can be met. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic structural diagram of an integrated transformer provided by an embodiment of the present utility model;
[0021] Figure 2 This is a schematic structural diagram of an integrated transformer provided by an embodiment of the present utility model with the housing and the fixing base removed;
[0022] Figure 3 This is an exploded schematic diagram of an integrated transformer provided by an embodiment of the present utility model;
[0023] Figure 4 This is a schematic structural diagram of the first coil and the fourth coil provided in an embodiment of the present utility model;
[0024] Figure 5 This is a schematic structural diagram of the second coil provided in an embodiment of the present utility model;
[0025] Figure 6 This is a schematic structural diagram of a first magnetic core provided by an embodiment of the present utility model;
[0026] Figure 7 It is a structural schematic diagram of the first isolation plate provided in an embodiment of the present utility model. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and are not to be construed as limiting the present invention. In addition, it should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0028] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "left", "right", "horizontal", "top", "bottom", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the described features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.
[0030] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections, or mutual communication; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.
[0031] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.
[0032] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but a person of ordinary skill in the art will appreciate the application of other processes and / or the use of other materials.
[0033] refer to Figure 1-7 , the embodiment of the present utility model provides an integrated transformer, comprising:
[0034] Housing 10;
[0035] A fixing seat 20 disposed in the housing 10;
[0036] A first magnetic core 31 and a second magnetic core 32 are provided in the fixing seat 20;
[0037] a first isolation plate 41, a first coil 51, a second isolation plate 42, a second coil 52, a third isolation plate 43, a third coil 53, a fourth isolation plate 44, a fourth coil 54, and a fifth isolation plate 45 disposed between the first magnetic core 31 and the second magnetic core 32;
[0038] Among them, the first magnetic core 31, the first isolation plate 41, the first coil 51, the second isolation plate 42, the second coil 52, the third isolation plate 43, the third coil 53, the fourth isolation plate 44, the fourth coil 54, the fifth isolation plate 45 and the second magnetic core 32 are arranged in sequence.
[0039] The first magnetic core 31, the first isolation plate 41, the first coil 51, the second isolation plate 42, the second coil 52, the third isolation plate 43, the third coil 53, the fourth isolation plate 44, the fourth coil 54, the fifth isolation plate 45 and the second magnetic core 32 are arranged in the fixing base 20, and the fixing base 20 fixes the above components.
[0040] During operation, the first magnetic core 31, the first coil 51, the second coil 52, the third coil 53, the fourth coil 54, and the second magnetic core 32 work together to generate an induced current through electromagnetic principles, which is then transmitted to the connected load device. Furthermore, during operation, the first isolation plate 41, the second isolation plate 42, the third isolation plate 43, the fourth isolation plate 44, and the fifth isolation plate 45 provide isolation, maintaining electrical clearance and creepage distances between the individual coils (i.e., the first coil 51, the second coil 52, the third coil 53, and the fourth coil 54), thus meeting high withstand voltage requirements.
[0041] refer to Figure 3 In some specific embodiments of the present application, the first coil 51, the second coil 52, the third coil 53 and the fourth coil 54 are all disc coils.
[0042] The first coil 51, the second coil 52, the third coil 53 and the fourth coil 54 are all disc coils, which are flat and disc-shaped, can effectively utilize space, and have relatively good electrical performance. They also have good mechanical stability and can withstand large electromagnetic forces without being easily deformed, which helps the transformer to operate stably under complex working conditions.
[0043] refer to Figure 2-4 In some specific embodiments of the present application, the first coil 51 includes a first coil body 511 and a first lead 512 extending from the first coil body 511 and at least partially extending out of the housing 10, the fourth coil 54 includes a fourth coil body 541 and a second lead 542 extending from the fourth coil body 541 and at least partially extending out of the housing 10, and the first coil body 511 and the fourth coil body 541 are connected by a third lead 513.
[0044] The first coil body 511 and the fourth coil body 541 are flat disc-shaped and are connected by a third lead 513. The first lead 512 leads out of the housing 10, the second lead 542 leads out of the housing 10, and the third lead 513 can also lead out of the housing 10, which facilitates lead processing.
[0045] refer to Figure 2 、 Figure 3 and Figure 5 In some specific embodiments of the present application, the second coil 52 includes a second coil body 521 and a fourth lead 522 and a fifth lead 523 extending from the second coil body 521 and at least partially extending out of the housing 10.
[0046] The second coil body 521 is in a flat disk shape, and the fourth lead 522 and the fifth lead 523 are led out of the housing 10 to facilitate lead processing.
[0047] refer to Figure 2 and Figure 3 In some specific embodiments of the present application, the third coil 53 includes a third coil body and a sixth lead and a seventh lead extending from the third coil body and at least partially extending out of the housing 10.
[0048] The third coil body is in the shape of a flat disk, and the sixth lead and the seventh lead are led out of the housing 10, which is convenient for lead processing. Figure 5 Schematic diagram of the structure of the second coil 52, both of which include a main body and two lead wires.
[0049] refer to Figure 2 、 Figure 3 and Figure 6 In some specific embodiments of the present application, the first magnetic core 31 includes a first magnetic core body 311 and a first magnetic column 312 arranged in the middle position of the first magnetic core body 311, the second magnetic core 32 includes a second magnetic core body and a second magnetic column arranged in the middle position of the second magnetic core body, the first isolation plate 41, the first coil 51, the second isolation plate 42, the second coil 52 and part of the third isolation plate 43 are arranged on the first magnetic column 312, and part of the third isolation plate 43, the third coil 53, the fourth isolation plate 44, the fourth coil 54 and the fifth isolation plate 45 are arranged on the second magnetic column.
[0050] The first magnetic core 31 and the second magnetic core 32 are E-shaped, with the first magnetic column 312 of the first magnetic core 31 positioned in the middle, and the second magnetic column of the second magnetic core 32 positioned in the middle. The first coil 51 and the second coil 52 are mounted on the first magnetic column 312, and the third coil 53 and the fourth coil 54 are mounted on the second magnetic column, capable of generating an induced current through electromagnetic principles. The first isolation plate 41, the second isolation plate 42, and a portion of the third isolation plate 43 are mounted on the first magnetic column 312, while a portion of the third isolation plate 43, the fourth isolation plate 44, and the fifth isolation plate 45 are mounted on the second magnetic column, capable of providing isolation.
[0051] Of course, if the entire third isolation plate 43 is mounted on the first magnetic column 312 , or the entire third isolation plate 43 is mounted on the second magnetic column, the isolation function can also be achieved, and this should be considered as a simple replacement of the above embodiment.
[0052] refer to Figure 2 、 Figure 3 and Figure 7 In some specific embodiments of the present application, the first isolation plate 41 is staggeredly provided with a first radial slot 411 toward the first magnetic core 31 and a second radial slot 412 toward the first coil 51, and the second isolation plate 42 is staggeredly provided with a third radial slot toward the first coil 51 and a fourth radial slot toward the second coil 52.
[0053] The first isolation plate 41 and the second isolation plate 42 are made of annular insulating material, such as epoxy board, mica board, etc.
[0054] The first radial grooves 411 and the second radial grooves 412 of the first isolation plate 41 are arranged in a staggered manner, which can be understood as a second radial groove 412 being provided between every two first radial grooves 411, and a first radial groove 411 being provided between every two second radial grooves 412. The third radial grooves and the fourth radial grooves of the second isolation plate 42 are arranged in a staggered manner, which can be understood as a fourth radial groove being provided between every two third radial grooves, and a third radial groove being provided between every two fourth radial grooves.
[0055] The first radial groove 411 and the second radial groove 412 of the first isolation plate 41 and the third radial groove and the fourth radial groove of the second isolation plate 42 can guide the direction of the electric field lines, avoid problems such as insulation breakdown caused by excessive concentration of the local electric field, enhance the insulation performance of the transformer, and thus ensure the safe and stable operation of the transformer.
[0056] It should be noted that the structure of the second isolation plate 42 can refer to Figure 7 Schematic diagram of the structure of the first isolation plate 41, both of which include a plurality of radial grooves arranged in a staggered manner.
[0057] In some specific embodiments of the present application, the third isolation plate 43 is staggeredly provided with a fifth radial slot facing the second coil 52 and a sixth radial slot facing the third coil 53 .
[0058] The third isolation plate 43 is made of an annular insulating material, such as an epoxy board, a mica board, etc.
[0059] The fifth radial grooves and the sixth radial grooves of the third isolation plate 43 are staggered, which can be understood as a sixth radial groove being provided between every two fifth radial grooves, and a fifth radial groove being provided between every two sixth radial grooves.
[0060] The fifth radial groove and the sixth radial groove of the third isolation plate 43 can guide the direction of the electric field lines, avoid problems such as insulation breakdown caused by excessive concentration of the local electric field, enhance the insulation performance of the transformer, and thus ensure safe and stable operation of the transformer.
[0061] It should be noted that the structure of the third isolation plate 43 can refer to Figure 7 Schematic diagram of the structure of the first isolation plate 41, both of which include a plurality of radial grooves arranged in a staggered manner.
[0062] In some specific embodiments of the present application, the fourth isolation plate 44 is staggeredly provided with a seventh radial slot toward the third coil 53 and an eighth radial slot toward the fourth coil 54, and the fifth isolation plate 45 is staggeredly provided with a ninth radial slot toward the fourth coil 54 and a tenth radial slot toward the second magnetic core 32.
[0063] The fourth isolation plate 44 and the fifth isolation plate 45 are made of annular insulating material, such as epoxy board, mica board, etc.
[0064] The seventh and eighth radial slots of the fourth isolation plate 44 are staggered, meaning that an eighth radial slot is provided between every second seventh radial slot, and a seventh radial slot is provided between every second eighth radial slot. The ninth and tenth radial slots of the fifth isolation plate 45 are staggered, meaning that a tenth radial slot is provided between every second ninth radial slot, and a ninth radial slot is provided between every every tenth radial slot.
[0065] The seventh and eighth radial grooves of the fourth isolation plate 44 and the ninth and tenth radial grooves of the fifth isolation plate 45 can guide the direction of the electric field lines, avoid problems such as insulation breakdown caused by excessive concentration of the local electric field, enhance the insulation performance of the transformer, and thus ensure the safe and stable operation of the transformer.
[0066] It should be noted that the structures of the fourth isolation plate 44 and the fifth isolation plate 45 can be referred to Figure 7 Schematic diagram of the structure of the first isolation plate 41, both of which include a plurality of radial grooves arranged in a staggered manner.
[0067] An embodiment of the present invention provides an electrical device, comprising the integrated transformer as described in any one of the above embodiments.
[0068] The integrated transformer includes a shell 10, a first magnetic core 31, a second magnetic core 32, and a first isolation plate 41, a first coil 51, a second isolation plate 42, a second coil 52, a third isolation plate 43, a third coil 53, a fourth isolation plate 44, a fourth coil 54 and a fifth isolation plate 45 arranged between the first magnetic core 31 and the second magnetic core 32. The first magnetic core 31, the first isolation plate 41, the first coil 51, the second isolation plate 42, the second coil 52, the third isolation plate 43, the third coil 53, the fourth isolation plate 44, the fourth coil 54, the fifth isolation plate 45 and the second magnetic core 32 are arranged in sequence. Through the isolation effect of the first isolation plate 41, the second isolation plate 42, the third isolation plate 43, the fourth isolation plate 44 and the fifth isolation plate 45, the electrical clearance and creepage distance between the coils are solved, which can meet higher voltage resistance requirements.
[0069] Throughout this specification, references to terms such as "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" indicate that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative uses 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 any one or more embodiments or examples.
[0070] In addition, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. An integrated transformer, characterized in that: include: shell; a fixing seat disposed in the housing; a first magnetic core and a second magnetic core disposed in the fixing seat; a first isolation plate, a first coil, a second isolation plate, a second coil, a third isolation plate, a third coil, a fourth isolation plate, a fourth coil, and a fifth isolation plate disposed between the first magnetic core and the second magnetic core; Among them, the first magnetic core, the first isolation plate, the first coil, the second isolation plate, the second coil, the third isolation plate, the third coil, the fourth isolation plate, the fourth coil, the fifth isolation plate and the second magnetic core are arranged in sequence.
2. The integrated transformer according to claim 1, characterized in that: The first coil, the second coil, the third coil, and the fourth coil are all disc coils.
3. The integrated transformer according to claim 2, characterized in that: The first coil includes a first coil body and a first lead extending from the first coil body and at least partially extending out of the shell. The fourth coil includes a fourth coil body and a second lead extending from the fourth coil body and at least partially extending out of the shell. The first coil body and the fourth coil body are connected by a third lead.
4. The integrated transformer according to claim 2, characterized in that: The second coil includes a second coil body and fourth and fifth leads extending from the second coil body and at least partially extending out of the housing.
5. The integrated transformer according to claim 2, characterized in that: The third coil includes a third coil body and sixth and seventh leads extending from the third coil body and at least partially extending out of the housing.
6. The integrated transformer according to claim 1, characterized in that: The first magnetic core includes a first magnetic core body and a first magnetic column arranged in the middle position of the first magnetic core body, the second magnetic core includes a second magnetic core body and a second magnetic column arranged in the middle position of the second magnetic core body, the first isolation plate, the first coil, the second isolation plate, the second coil and part of the third isolation plate are mounted on the first magnetic column, and part of the third isolation plate, the third coil, the fourth isolation plate, the fourth coil and the fifth isolation plate are mounted on the second magnetic column.
7. The integrated transformer according to claim 1, characterized in that: The first isolation plate is staggeredly provided with a first radial slot facing the first magnetic core and a second radial slot facing the first coil, and the second isolation plate is staggeredly provided with a third radial slot facing the first coil and a fourth radial slot facing the second coil.
8. The integrated transformer according to claim 1, characterized in that: The third isolation plate is staggeredly provided with a fifth radial slot facing the second coil and a sixth radial slot facing the third coil.
9. The integrated transformer according to claim 1, characterized in that: The fourth isolation plate is staggeredly provided with a seventh radial slot facing the third coil and an eighth radial slot facing the fourth coil, and the fifth isolation plate is staggeredly provided with a ninth radial slot facing the fourth coil and a tenth radial slot facing the second magnetic core.
10. An electrical device, characterized in that: Comprising the integrated transformer according to any one of claims 1 to 9.