Voltage transformation device and electric equipment

Abstract

The utility model relates to the field of transformers, and discloses a voltage transformation device and electric equipment, the voltage transformation device comprises a skeleton assembly, a magnetic core assembly, a shell, a first pin and a second pin, the magnetic core assembly covers the skeleton assembly, the skeleton assembly is located in the shell, the first pin is fixedly installed on the skeleton assembly, the second pin is fixedly arranged on the skeleton assembly, and the first pin is fixedly installed on the shell. And the first pin and the second pin are arranged in opposite directions. According to the transformer, the first pin and the second pin are arranged on the framework assembly in the opposite directions, the distance between the first pin and the second pin is increased, the insulation distance is increased, the transformer can bear larger voltage, and the transformer is more reliable to use.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of transformers, and in particular to a transformer device and an electrical equipment. BACKGROUND

[0002] In power transmission and distribution systems, transformers serve as key equipment and undertake the important task of voltage level conversion. However, in traditional transformer design, a common technical problem is that the low-voltage end pin wires and the high-voltage end pin wires are often arranged on the same plane, and the air insulation distance between them is relatively limited. This layout is particularly troublesome in high-voltage operating environments, because as the voltage level increases, electric field concentration phenomena easily occur between the high-voltage end and the low-voltage end, thereby causing arc effect.

[0003] When the high-voltage side voltage of the transformer reaches a certain critical value, due to the breakdown voltage limitation of the air gap, the arc distance between the high-voltage and the low-voltage is significantly shortened, which not only leads to a decrease in power transmission efficiency, but also can cause a serious electrical short circuit. The high heat generated by the short circuit will quickly accumulate, eventually causing damage to the internal insulation materials of the transformer, burning of the winding, and other serious consequences, making the transformer completely inoperable and unable to continue normal work. CONTENT OF THE INVENTION

[0004] Therefore, the purpose of the present application is to overcome the deficiencies in the prior art and provide a transformer device and an electrical equipment.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present application is as follows:

[0006] The present application provides:

[0007] A transformer device, comprising:

[0008] a framework assembly;

[0009] a magnetic core assembly, the magnetic core assembly being covered on the framework assembly;

[0010] a shell, the framework assembly being located inside the shell;

[0011] a first pin, the first pin being fixedly installed on the framework assembly;

[0012] a second pin, the second pin being fixedly arranged on the framework assembly, and the first pin and the second pin being arranged in opposite directions.

[0013] Further, the framework assembly comprises a first framework and a second framework, and the first framework and the second framework are integrally or separately connected.

[0014] Further, the first skeleton comprises a first frame body, a first connecting block is arranged at at least one end surface of the first frame body, the first pin is arranged on the first connecting block, and a first through hole is arranged through the end surface of the first frame body.

[0015] Further, a plurality of first line grooves are arranged on the outer circumferential surface of the first frame body, and a connecting groove is arranged between adjacent first line grooves.

[0016] Further, the second skeleton comprises a second frame body, a second through hole is arranged through the end surface of the second frame body in the axial direction, a second connecting block is arranged at the end surface of the second frame body away from the first frame body, the second pin is arranged on the second connecting block, and a second line groove is arranged on the outer circumferential surface of the second frame body.

[0017] Further, the magnetic core assembly comprises a first magnetic core and a second magnetic core, and an accommodating space adapted to the skeleton assembly is formed between the first magnetic core and the second magnetic core.

[0018] Further, the first magnetic core comprises a first magnet and a second magnet, a first connecting column is arranged at the inner end surface of the first magnet facing the second magnet, a second connecting column is arranged at the inner end surface of the second magnet facing the first magnet, the first connecting column is coaxial with the second connecting column, and the first magnet, the second magnet, the first connecting column and the second connecting column define a receiving cavity.

[0019] Further, the second magnetic core comprises a third magnet arranged at the opening of the receiving cavity, and an avoiding groove is arranged on the third magnet and communicates with the receiving cavity.

[0020] Further, the shell comprises a shell body, the shell body has an inlet, an avoiding hole is arranged through the side wall of the shell body opposite to the inlet, and at least one convex strip is arranged inside the shell body.

[0021] The application also provides a power consumption device comprising the transformer device.

[0022] The application can increase the distance between the first pin and the second pin by arranging the first pin and the second pin in opposite directions on the skeleton assembly, increase the insulation distance, enable the device to withstand greater voltage, and make the transformer more reliable in use.

[0023] In order to make the above-mentioned purposes, characteristics and advantages of the application more obvious and easy to understand, the following preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0025] Figure 1 The schematic diagram of the explosion state of the transformer device of the present application is shown.

[0026] Figure 2 The schematic diagram of the assembly state of the skeleton assembly and the magnetic core assembly of the present application is shown.

[0027] Figure 3 The schematic diagram of the first skeleton assembly of the present application is shown.

[0028] Figure 4 The schematic diagram of the second skeleton assembly of the present application is shown.

[0029] Figure 5 The schematic diagram of the first magnetic core assembly of the present application is shown.

[0030] Figure 6 The schematic diagram of the explosion state structure of the first magnetic core of the present application is shown.

[0031] Figure 7 The schematic diagram of the second magnetic core assembly of the present application is shown.

[0032] Figure 8 The schematic diagram of the shell structure of the present application is shown.

[0033] Figure 9 The schematic diagram of the explosion state structure of the transformer device in another embodiment of the present application is shown.

[0034] Figure 10 The schematic diagram of the magnetic core assembly structure in another embodiment of the present application is shown.

[0035] Main element symbol explanation: 100-skeleton assembly; 110-first skeleton; 111-first frame body; 112-first connecting block; 113-first through hole; 114-first wire slot; 115-connecting slot; 120-second skeleton; 121-second frame body; 122-second through hole; 123-second connecting block; 124-second wire slot; 200-magnetic core assembly; 210-first magnetic core; 211-first magnet; 212-second magnet; 213-first connecting column; 214-second connecting column; 215-receiving cavity; 220-second magnetic core; 221-third magnet; 222-avoidance slot; 300-shell; 310-shell body; 320-avoidance hole; 330-protruding strip; 400-first pin; 500-second pin. DETAILED DESCRIPTION

[0036] Embodiments of the present application are described below in detail with reference to the accompanying drawings, wherein the same or similar components are denoted by the same or similar reference numerals throughout the drawings. The embodiments described below are exemplary only, and are merely intended to explain the present application, and are not to be understood as limiting the present application.

[0037] In the description of the present application, it is to be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like are based on the orientations or positional relationships shown in the drawings, and are merely intended to facilitate the description of the present application and simplify the description, and are not intended to indicate or imply that the devices or elements indicated thereby must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0038] In addition, the terms "first", "second", etc. are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated thereby. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0039] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing", and the like should be understood broadly, for example, can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium, or internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over", and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under", and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0041] The transformer reduces high voltage to low voltage during voltage conversion to meet the use requirement. The high voltage pin and the low voltage pin of the existing transformer are generally in the same plane, so that the distance between the two pins is small. With the increase of voltage, the cavity between the high voltage pin and the low voltage pin may be broken down, thereby generating arc, which may cause damage, fire and the like of the transformer. Therefore, the distance between the first pin 400 and the second pin 500 is arranged in opposite directions, so as to increase the distance between the first pin 400 and the second pin 500, thereby being able to withstand greater voltage, so that the transformer is stable and reliable.

[0042] The application provides a voltage conversion device and an electric equipment.

[0043] The magnetic core assembly 200 covers the skeleton assembly 100, the skeleton assembly 100 is located inside the shell 300, the first pin 400 is fixedly installed on the skeleton assembly 100, the second pin 500 is fixedly arranged on the skeleton assembly 100, and the first pin 400 and the second pin 500 are arranged in opposite directions.

[0044] Referring to Figure 1 and Figure 2 In the embodiment, the first pin 400 and the second pin 500 are arranged in opposite directions, that is, they are distributed at one hundred and eighty degrees, so as to increase the distance between the first pin 400 and the second pin 500, increase the creepage distance, ensure that a greater voltage can be withstood without breakdown, thereby improving the stability and safety of the transformer.

[0045] The skeleton assembly 100 includes a first skeleton 110 and a second skeleton 120, and the first skeleton 110 and the second skeleton 120 are integrally or separately connected.

[0046] Referring to Figure 1 , Figure 2 , Figure 3 and Figure 4 Since the wire needs to be wound on the skeleton assembly 100, the insulation requirement of the high voltage is relatively high, and the insulation requirement of the low voltage is relatively low. Therefore, in order to save cost, the manufacturing materials of the two can be different, so that a separate design is adopted, that is, the first skeleton 110 and the second skeleton 120 are not integrally formed. Further, in actual use, according to the difference of the materials and the manufacturing process, an integral forming mode can also be adopted, which is not limited here. In the embodiment, the first skeleton 110 and the second skeleton 120 adopt a separate mode.

[0047] The first skeleton 110 comprises a first frame body 111, the first frame body 111 is provided with a first connecting block 112 at at least one end face, the first lead 400 is arranged on the first connecting block 112, and the first frame body 111 is provided with a first through hole 113 penetrating through the end face.

[0048] Referring to Figure 3 As shown in the embodiment, one first connecting block 112 is arranged at each of the two axial ends of the first frame body 111, since the first frame body 111 is in a cylindrical shape, in order to prevent the first frame body 111 from rotating, the first frame body 111 can be limited by the first connecting block 112, so that the first frame body 111 is prevented from rotating, further, the first lead 400 is arranged on the first connecting block 112, and a plurality of first wire grooves 114 are arranged on the outer circumferential surface of the first frame body 111, the winding of the wire is realized through the first wire grooves 114, further, a first through hole 113 is arranged at the center of the axial end face of the first frame body 111, and the first through hole 113 can fix the first frame body 111 and the second skeleton 120 in cooperation with the magnetic core assembly 200.

[0049] Further, a plurality of first wire grooves 114 are arranged on the outer circumferential surface of the first frame body 111, and a connecting groove 115 is arranged between adjacent first wire grooves 114.

[0050] Please continue to refer to Figure 3 As shown in the embodiment, in order to facilitate the transition of the wire from one first wire groove 114 to an adjacent first wire groove 114 during the winding of the wire about the first wire groove 114, the connecting groove 115 is arranged between the adjacent two first wire grooves 114, so as to facilitate the transition of the wire.

[0051] The second skeleton 120 comprises a second frame body 121, the second frame body 121 is provided with a second through hole 122 penetrating through the end face in the axial direction, the end face of the second frame body 121 away from the first frame body 111 is provided with a second connecting block 123, the second lead 500 is arranged on the second connecting block 123, and a second wire groove 124 is arranged on the outer circumferential surface of the second frame body 121.

[0052] Referring to Figure 4As shown, the second frame body 121 is provided with a second connecting block 123 at the end surface outer surface of the first frame body 111, the second connecting block 123 is used for fixed connection of the second pin 500, and the second connecting block 123 also has a limiting function, the second frame body 121 is limited and prevented from rotating through the second connecting block 123, and a second wire slot 124 is also formed in the outer surface of the second frame body 121, the wire is wound through the second wire slot 124, further, a second through hole 122 is formed through the center of the second frame body 121, in the embodiment, the second through hole 122 is coaxial with the first through hole 113, and the diameters of the first frame body 111 and the second frame body 121 are the same, when assembling, the first frame body 111 and the second frame body 121 are coaxially matched.

[0053] The magnetic core assembly 200 includes a first magnetic core 210 and a second magnetic core 220, and an accommodating space adapted to the skeleton assembly 100 is formed between the first magnetic core 210 and the second magnetic core 220.

[0054] As shown in Figure 1 , Figure 2 In the embodiment, the first magnetic core 210 mainly covers the skeleton assembly 100 in the left-right direction, and the second magnetic core 220 covers the skeleton assembly 100 in the up-down direction, thereby providing a magnetic field for the voltage conversion function.

[0055] Specifically, the first magnetic core 210 includes a first magnet 211 and a second magnet 212, the first magnet 211 is provided with a first connecting column 213 at the inner end face in the direction of the second magnet 212, the second magnet 212 is provided with a second connecting column 214 at the inner end face in the direction of the first magnet 211, and the first connecting column 213 and the second connecting column 214 are coaxial, and the first magnet 211, the second magnet 212, the first connecting column 213 and the second connecting column 214 define a receiving cavity 215.

[0056] As shown in Figure 1 , Figure 5 and Figure 6 The first connecting column 213 extends into the first through hole 113, the second connecting column 214 extends into the second through hole 122, and the length of the second connecting column 214 is greater than the axial width of the second frame body 121, so that the first connecting column 213 and the second connecting column 214 can both extend into the first through hole 113, thereby cooperating the second frame body 121 with the first frame body 111 through the second connecting column 214, and the first frame body 111 and the second frame body 121 are placed into the receiving cavity 215, and the skeleton assembly 100 is covered in the left-right direction through the cooperation of the first magnet 211 and the second magnet 212.

[0057] The second magnetic core 220 comprises a third magnet 221 arranged at the opening of the accommodating cavity 215, and the third magnet 221 is provided with an avoiding slot 222 which is in communication with the accommodating cavity 215.

[0058] As shown in Figure 1 , Figure 2 and Figure 7 , the second magnetic core 220 is arranged at the upper and lower openings of the accommodating cavity 215 of the skeleton assembly 100, and specifically, the third magnet 221 is used for covering and shielding, and the avoiding slot 222 is arranged on the side of the third magnet 221, so that the glue can smoothly enter the accommodating cavity 215 in the subsequent glue pouring process.

[0059] The shell 300 comprises a shell body 310, the shell body 310 has an inlet, and the shell body 310 is provided with an avoiding hole 320 penetratingly arranged on the side wall opposite to the inlet, and the shell body 310 is internally provided with at least one convex strip 330.

[0060] As shown in Figure 8 , in order to fix the assembled skeleton assembly 100 and magnetic core assembly 200, the assembled skeleton assembly 100 is placed into the shell 300, and specifically, the avoiding hole 320 is arranged on the top wall of the shell body 310 at the position of the first pin 400, so that the first pin 400 extends to the outside of the shell body 310 through the avoiding hole 320, and further, after the skeleton assembly 100 is placed into the shell body 310, the glue pouring process is needed, and in order to completely cover the skeleton assembly 100 and the external magnetic core assembly 200, the convex strip 330 is arranged on the inner side wall of the shell body 310, the convex strip 330 is in contact with the surface of the magnetic core assembly 200, so as to realize the positioning and form the gap between the outer surface of the magnetic core assembly 200 and the inner wall of the shell body 310, thereby facilitating the glue to enter the inside of the accommodating cavity 215.

[0061] As shown in Figure 1 , Figure 9 and Figure 10 , the two transformer devices shown in Figure 1 and Figure 9 are different in that, Figure 9 the transformer device shown in Figure 1 is different in the shape of the outer surface, and Figure 9 the transformer device shown in is different in that the magnetic core assembly 200 is elliptical, the first skeleton 110 does not have the first connecting block 112, and the magnetic core assembly 200 does not have the third magnet 221, and the first pin 400 can be connected with the avoiding hole 320 of the shell 300, so as to prevent the rotation of the first skeleton 110.

[0062] In some embodiments, the outer surface of the voltage conversion device can have various shapes, and the shapes disclosed in the embodiments of the present application are not limited.

[0063] The present application also provides a power consuming device comprising the voltage conversion device as described above.

[0064] The power consuming device can be a charger for a mobile phone, a tablet, an electric vehicle, etc., or can be a voltage conversion device, which is not limited herein.

[0065] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, different embodiments or examples described in the present application and the features of different embodiments or examples can be combined and modified by those skilled in the art without contradiction.

[0066] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A transformer device, characterized in that, include: A skeleton assembly (100) includes a first skeleton (110) and a second skeleton (120), wherein the first skeleton (110) and the second skeleton (120) are connected integrally or separately; A magnetic core assembly (200) is disposed over the skeleton assembly (100). The outer shell (300) includes a frame assembly (100) located inside the outer shell (300). The outer shell (300) includes a housing (310) having an entrance. A clearance hole (320) is provided through the side wall of the housing (310) opposite to the entrance. At least one protrusion (330) is provided inside the housing (310). The first pin (400) is fixedly mounted on the skeleton assembly (100); The second pin (500) is fixedly disposed on the skeleton assembly (100), and the first pin (400) and the second pin (500) are arranged in opposite directions.

2. The transformer device according to claim 1, characterized in that, The first frame (110) includes a first frame (111), at least one end face of the first frame (111) is provided with a first connecting block (112), the first pin (400) is provided on the first connecting block (112), and a first through hole (113) is provided through the end face of the first frame (111).

3. The transformer device according to claim 2, characterized in that, The outer circumferential surface of the first frame (111) is provided with a plurality of evenly distributed first grooves (114), and a connecting groove (115) is provided between adjacent first grooves (114).

4. The transformer device according to claim 2 or 3, characterized in that, The second frame (120) includes a second frame (121), a second through hole (122) is provided on the end face of the second frame (121) along the axial direction, a second connecting block (123) is provided on the end face of the second frame (121) away from the first frame (111), the second pin (500) is provided on the second connecting block (123), and a second wire groove (124) is provided on the outer peripheral surface of the second frame (121).

5. The transformer according to claim 1, characterized in that, The magnetic core assembly (200) includes a first magnetic core (210) and a second magnetic core (220), and a receiving space adapted to the skeleton assembly (100) is formed between the first magnetic core (210) and the second magnetic core (220).

6. The transformer according to claim 5, characterized in that, The first magnetic core (210) includes a first magnet (211) and a second magnet (212). A first connecting post (213) is provided on the inner end face of the first magnet (211) facing the second magnet (212). A second connecting post (214) is provided on the inner end face of the second magnet (212) facing the first magnet (211). The first connecting post (213) and the second connecting post (214) are coaxial. The first magnet (211), the second magnet (212), the first connecting post (213) and the second connecting post (214) define and form a receiving cavity (215).

7. The transformer according to claim 6, characterized in that, The second magnetic core (220) includes a third magnet (221) disposed at the opening of the accommodating cavity (215), and the third magnet (221) has a relief groove (222) communicating with the accommodating cavity (215).

8. An electrical appliance, characterized in that, Includes the transformer device as described in any one of claims 1 to 7.

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