Transformer and electric stove

Abstract

The present invention relates to a transformer device and an electric stove. The transformer device comprises: a shell, a first cavity and a second cavity are provided on opposite sides of the shell, and a first opening and a second opening are provided on the first cavity and the second cavity respectively; a magnetic core assembly, the magnetic core assembly encloses an annular frame, and at least part of the magnetic core assembly is respectively arranged in the first cavity and the second cavity through the first opening and the second opening; an insulating sleeve assembly, the insulating sleeve assembly comprises a first insulating sleeve and a second insulating sleeve, the first insulating sleeve and the second insulating sleeve are respectively wound with a primary coil and a secondary coil, the first insulating sleeve and the second insulating sleeve are respectively sleeved on the magnetic core assembly, and the first insulating sleeve and the second insulating sleeve are respectively arranged in the first cavity and the second cavity; a bracket assembly, the bracket assembly abuts against the shell and abuts against the magnetic assembly. The transformer device and the electric stove provided by the present application can quickly reduce the temperature of the magnetic core and have a simple structure, small size, light weight, and are easy to use.

Description

Technical Field

[0001] The invention relates to the technical field of stove bodies, and in particular to a voltage transformer and an electric stove. Background Art

[0002] Plasma is the fourth state of matter, different from solid, liquid and gas. It is an ionized gaseous substance composed of positive and negative ions produced by ionization of atoms and atomic clusters that have been deprived of some of their electrons. Its movement is mainly governed by electromagnetic force and exhibits significant collective behavior.

[0003] The electric stove is a new type of stove that utilizes the characteristics of plasma, uses high voltage electricity to break through the air to form hot plasma, converts electrical energy into thermal energy, and finally obtains a thermal plasma beam with ideal functions, which generates a thermal plasma beam with flame characteristics to heat the pot for cooking. Since electric energy is used as a direct energy input, in order to generate a plasma beam, the mains electricity needs to be boosted to a high voltage of 10KV, so a transformer needs to be installed inside the electric stove to boost the voltage.

[0004] The transformer structure in the existing electric stove has the following defects:

[0005] 1. Using a fully enclosed bracket to surround the coil is not conducive to heat dissipation and affects the normal operation of the transformer. Therefore, it is often necessary to increase the volume of the transformer to increase the heat dissipation area or increase the capacity of the heat dissipation material.

[0006] 2. In order to solve the heat dissipation problem of the transformer, it is necessary to pour transformer oil into the closed cavity of the transformer. The injection of a large amount of transformer oil often makes the electric stove heavy, which is not conducive to transportation and use.

[0007] Therefore, based on the above two reasons, the existing electric stove products are bulky and heavy, which restricts the use and large-scale promotion of electric stoves. Summary of the invention

[0008] Based on this, it is necessary to provide a transformer device and an electric stove using the transformer device which can quickly reduce the temperature of the magnetic core and has a simple structure, small size and light weight in order to solve the above problems.

[0009] A transformer device is used for an electric stove, and the transformer device includes: a shell, a first cavity and a second cavity are opened on opposite sides of the shell, and the first cavity and the second cavity are respectively provided with a first opening and a second opening; a magnetic core assembly, the magnetic core assembly is surrounded by an annular frame, and the magnetic core assembly is at least partially arranged in the first cavity and the second cavity through the first opening and the second opening respectively; an insulating sleeve assembly, the insulating sleeve assembly includes a first insulating sleeve and a second insulating sleeve, the first insulating sleeve and the second insulating sleeve are respectively wound with a primary coil and a secondary coil, the first insulating sleeve and the second insulating sleeve are respectively sleeved on the magnetic core assembly, and the first insulating sleeve and the second insulating sleeve are respectively arranged in the first cavity and the second cavity; a bracket assembly, the bracket assembly is against the shell and abuts against the magnetic assembly.

[0010] The transformer device includes a shell, a magnetic core assembly, an insulating sleeve assembly and a bracket assembly. The shell is provided with a first cavity having a first opening and a second opening and a second cavity. The opening positions of the first cavity and the second cavity on the shell are arranged in opposite directions. The magnetic core assembly is arranged in an annular frame, and at least part of the magnetic core assembly is arranged in the first cavity and the second cavity respectively. Optionally, the magnetic core assembly adopts a ferrite soft magnetic core to ensure the excitation effect in the high-frequency transformer circuit. The magnetic core assembly is an annular frame to form a magnetic circuit to complete electromagnetic conversion. The insulating sleeve assembly includes a first insulating sleeve and a second insulating sleeve, and the first insulating sleeve and the second insulating sleeve are respectively sleeved on the magnetic core assembly. The first insulating sleeve and the second insulating sleeve are respectively sleeved on the magnetic core assembly. A primary coil and a secondary coil are respectively wound on the first insulating sleeve and the second insulating sleeve. The primary coil inputs low voltage electricity, and the secondary coil outputs high voltage electricity, thereby realizing voltage rise and fall conversion. The transformer device of the present application also includes a bracket assembly, which abuts against the shell. The bracket assembly is in contact with the magnetic assembly to limit and lock the position of the magnetic core assembly in the shell assembly to prevent the magnetic core assembly from moving and affecting the electromagnetic conversion effect or causing arcing and other phenomena.

[0011] An anti-creeping partition is provided between the first cavity and the second cavity of the housing. Since the secondary coil outputs a very high voltage, creeping is easily caused between the high voltage and the low voltage, thus damaging the housing. The creeping arc between the primary coil and the secondary coil needs to go over the anti-creeping partition, which increases the creeping distance and prevents the generation of creeping.

[0012] In the transformer device of the present application, since the magnetic core assembly, the insulating sleeve assembly and the coil are respectively accommodated in the cavity with an opening of the shell, it is beneficial to the heat dissipation of the magnetic core assembly and the coil. There is no need to use the conventional oil seal method in the transformer to achieve cooling. Therefore, the structure of the transformer device of the present application can be significantly simplified, and the volume and weight are greatly reduced, providing a feasible technical implementation means for the application of high-voltage devices in household electrical appliances.

[0013] In one of the embodiments, the bracket assembly includes a first bracket and a second bracket, the first bracket and the second bracket are detachably connected, and the first bracket and the second bracket can abut against the magnetic core assembly respectively.

[0014] In the above transformer device, the bracket assembly includes a first bracket and a second bracket, and the first bracket and the second bracket are detachably connected, so as to facilitate the installation of the transformer device. In addition, the first bracket and the second bracket are detachably connected, and the connection position of the first bracket and the second bracket can be adjusted according to different magnetic core specifications, which is convenient to use and more flexible.

[0015] Optionally, the first bracket and the second bracket are detachably connected by threaded connection. Optionally, the first bracket and the second bracket are detachably connected by plugging.

[0016] In one embodiment, the shell is provided with a third limiting portion, the third limiting portion is provided with a first curved surface, the first bracket and the second bracket are respectively provided with a second curved surface and a third curved surface matching with the first curved surface, and the first bracket and the second bracket are connected with the first curved surface of the third limiting portion through the second curved surface and the third curved surface.

[0017] In the above transformer device, a third limiter is provided on the housing. The third limiter is connected to the first bracket and the second bracket respectively. The third limiter is provided with a first arc surface, and the first bracket and the second bracket are provided with a second arc surface and a third arc surface respectively. The first bracket and the second bracket are connected with the first arc surface of the third limiter through the second arc surface and the third arc surface to make the positions of the first bracket and the second bracket on the housing more stable, which is conducive to improving the structural reliability of the transformer device.

[0018] In one embodiment, the magnetic core assembly includes a first magnetic core and a second magnetic core, the first magnetic core and the second magnetic core are arranged in a U shape, and the first magnetic core and the second magnetic core are surrounded to form the annular frame.

[0019] In the above transformer device, the magnetic core assembly includes a first magnetic core and a second magnetic core, the first magnetic core and the second magnetic core are arranged in a U shape, and the first magnetic core and the second magnetic core are surrounded by a ring frame. By setting two groups of magnetic cores, it is convenient to remove and install the magnetic core assembly from the transformer device, so that the installation and use of the transformer device is more flexible, and the structure of the transformer device can be further simplified, and the production process is simpler.

[0020] In one embodiment, the first magnetic core includes a first arm, a second arm and a third arm, and the third arm is respectively connected to the first arm and the second arm to form the U-shape; the second magnetic core includes a fourth arm, a fifth arm and a sixth arm, and the sixth arm is connected to the fourth arm and the fifth arm to form the U-shape, and the first cavity and the second cavity of the shell are respectively provided with a first limiting portion and a second limiting portion, and the first limiting portion and the second limiting portion are respectively provided with a first through groove and a second through groove, the first arm and the fourth arm are respectively inserted in the first through groove and abut against each other, and the second arm and the fifth arm are respectively inserted in the second through groove and abut against each other.

[0021] In the above-mentioned transformer device, the third arm is connected to the first arm and the second arm to form a first magnetic core, and the sixth arm is connected to the fourth arm and the fifth arm to form a second magnetic core. The first limiting portion and the second limiting portion are respectively provided in the first cavity and the second cavity of the shell, and the first through-groove and the second through-groove are respectively provided in the first limiting portion and the second limiting portion. The first arm and the fourth arm are respectively inserted in the first through-groove, and the first arm and the fourth arm are abutted in the first through-groove. The second arm and the fifth arm are respectively inserted in the second through-groove and abutted in the second through-groove. The above-mentioned arrangement realizes the assembly of the magnetic core assembly in the shell, and the first limiting portion and the second limiting portion realize the positioning of the magnetic core assembly in the first cavity and the second cavity. The magnetic core positioning structure of the above-mentioned shell is simple, the production and manufacturing process is simple, and it is suitable for mass production.

[0022] In one embodiment, the third arm and the sixth arm protrude out of the first cavity and the second cavity.

[0023] In the above transformer device, further, the third arm and the sixth arm protrude out of the first cavity and the second cavity, so that the magnetic core component is partially exposed outside the shell, which is more conducive to the heat dissipation of the magnetic core component.

[0024] In one embodiment, the first insulating sleeve and the second insulating sleeve are respectively sleeved outside the first limiting portion and the second limiting portion.

[0025] In the above transformer device, the first insulating sleeve and the second insulating sleeve are respectively sleeved outside the first limiting portion and the second limiting portion, thereby realizing the rapid installation and positioning of the first insulating sleeve and the second insulating sleeve in the housing. In addition, the first insulating sleeve and the second insulating sleeve are sleeved outside the first limiting portion and the second limiting portion, and the magnetic core component is arranged inside the first limiting portion and the second limiting portion, thereby realizing the insulation setting of the magnetic core component through the first limiting portion and the second limiting portion.

[0026] In one of the embodiments, a plurality of pressure dividing partitions are further provided on the second insulating sleeve.

[0027] In the above transformer, the second insulating sleeve is also provided with a plurality of voltage dividing partitions. The above design can arrange the coils on the second insulating sleeve in groups, thereby achieving a voltage dividing effect to meet different voltage regulation requirements.

[0028] In one embodiment, a sealant is provided at the edge of the first cavity.

[0029] In one embodiment, a sealant is provided at the edge of the second cavity.

[0030] In one embodiment, sealant is disposed on the edges of the first cavity and the second cavity.

[0031] By providing sealant at the edge of the first cavity and / or the second cavity, the insulation effect of the transformer can be improved and arcing can be prevented.

[0032] In one embodiment, an electric stove includes: a stove body, a burner head assembly, a heat dissipation device, a power supply assembly and a transformer device as described in any one of claims 1 to 4, wherein an installation cavity is provided in the stove body, and at least a part of the burner head assembly, the heat dissipation device, the power supply assembly and the transformer device are arranged in the installation cavity, the power supply assembly is electrically connected to the transformer device and the heat dissipation device, and the transformer device is electrically connected to the burner head assembly.

[0033] The second aspect of the present application provides an electric stove. In addition to the transformer device of any one of the above items, the electric stove of the present application also includes a stove body, a burner assembly, a heat dissipation device and a power supply assembly. The above-mentioned electric stove is provided with the transformer device of the present application, so that during the use of the electric stove for voltage conversion, the heat of the magnetic core assembly and the coil in the transformer device can be quickly dissipated into the installation cavity through the first opening and the second opening on the shell, and the heat is quickly discharged from the electric stove through the heat dissipation device of the installation cavity. By using the transformer device of the present application, the structure of the electric stove is simpler, and the volume and weight are significantly reduced, which is conducive to realizing the lightness of the electric stove product, making it more convenient to manufacture, and better meeting the use requirements of home use. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is one of the structural schematic diagrams of the transformer device after assembly according to the present invention;

[0035] Figure 2 This is the second structural schematic diagram of the transformer device of the present invention after assembly;

[0036] Figure 3 An exploded diagram of the voltage transformer of the present invention;

[0037] Figure 4 This is one of the structural schematic diagrams of the housing of the present invention;

[0038] Figure 5 This is the second structural schematic diagram of the housing of the present invention;

[0039] Figure 6 It is a structural schematic diagram of the bracket assembly of the present invention;

[0040] Figure 7 is a schematic structural diagram of the second magnetic core of the present invention;

[0041] Figure 8 It is a schematic diagram of the internal structure of the electric stove of the present invention;

[0042] Fig. 9 This is a schematic diagram of the disassembled electric stove of the present invention.

[0043] The corresponding relationship between the reference numerals and the component names is as follows:

[0044] 1 housing, 101 first cavity, 102 second cavity, 103 first opening, 104 second opening, 11 first limiting portion, 12 second limiting portion, 105 first through groove, 106 second through groove, 13 third limiting portion, 131 first arcuate surface, 111 anti-creeping partition;

[0045] 2 magnetic core assembly, 21 first magnetic core, 211 first branch arm, 212 second branch arm, 213 third branch arm, 22 second magnetic core, 221 fourth branch arm, 222 fifth branch arm, 223 sixth branch arm;

[0046] 3 insulating sleeve assembly, 31 first insulating sleeve, 32 second insulating sleeve, 321 pressure dividing partition;

[0047] 4 bracket assembly, 41 first bracket, 411 second arcuate surface, 42 second bracket, 421 third arcuate surface;

[0048] 5 stove body, 501 installation cavity;

[0049] 6 burner head assembly;

[0050] 7 heat dissipation device. DETAILED DESCRIPTION

[0051] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0052] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0053] A voltage transformation device according to some embodiments of the present invention will be described below with reference to the accompanying drawings.

[0054] like Figures 1 to 5 As shown, the present embodiment discloses a transformer device, which is applied to an electric stove. The transformer device includes: a shell 1, wherein a first cavity 101 and a second cavity 102 are opened on opposite sides of the shell 1, and a first opening 103 and a second opening 104 are respectively provided on the first cavity 101 and the second cavity 102; a magnetic core component 2, wherein the magnetic core component 2 is surrounded by an annular frame, and the magnetic core component 2 is at least partially arranged in the first cavity 101 and the second cavity 102 through the first opening 103 and the second opening 104; an insulating sleeve component 3, wherein the insulating sleeve component 3 includes a first insulating sleeve 31 and a second insulating sleeve 32, wherein a primary coil and a secondary coil are respectively wound on the first insulating sleeve 31 and the second insulating sleeve 32, and the first insulating sleeve 31 and the second insulating sleeve 32 are respectively sleeved on the magnetic core component 2, and the first insulating sleeve 31 and the second insulating sleeve 32 are respectively arranged in the first cavity 101 and the second cavity 102; a bracket component 4, wherein the bracket component 4 abuts against the shell 1 and abuts against the magnetic component 2.

[0055] The present application discloses a transformer device, including a housing 1, a magnetic core assembly 2, an insulating sleeve assembly 3 and a bracket assembly 4. The housing 1 is provided with a first cavity 101 having a first opening 103 and a second opening 104 and a second cavity 102. The opening positions of the first cavity 101 and the second cavity 102 on the housing 1 are arranged in opposite directions. The magnetic core assembly 2 is arranged in an annular frame, and at least part of the magnetic core assembly 2 is arranged in the first cavity 101 and the second cavity 102 respectively. Optionally, the magnetic core assembly 2 adopts a ferrite soft magnetic core to ensure the excitation effect in the high-frequency transformer circuit. The magnetic core assembly 2 is an annular frame to form a magnetic circuit to complete electromagnetic conversion. The insulating sleeve assembly 3 includes a first insulating sleeve 31 and a second insulating sleeve 32, and the first insulating sleeve 31 and the second insulating sleeve 32 are respectively sleeved on the magnetic core assembly 2. The first insulating sleeve 31 and the second insulating sleeve 32 are respectively sleeved on the magnetic core assembly 2. The first insulating sleeve 31 and the second insulating sleeve 32 are respectively wound with a primary coil and a secondary coil. The primary coil inputs low voltage electricity, and the secondary coil outputs high voltage electricity, thereby realizing voltage up and down conversion. The transformer device of the present application also includes a bracket assembly 4, which is in contact with the housing 1. The bracket assembly 4 is in contact with the magnetic assembly 2, and is used to limit and lock the position of the magnetic core assembly 2 in the housing assembly 1 to prevent the position of the magnetic core assembly 2 from moving and affecting the electromagnetic conversion effect, or causing arcing and other phenomena.

[0056] An anti-creeping partition 111 is provided between the first cavity 101 and the second cavity 102 of the housing 1. Since the secondary coil outputs a very high voltage, creepage between the high voltage and the low voltage is likely to damage the housing 1, and the creepage arc between the primary coil and the secondary coil needs to go over the anti-creeping partition 111, which increases the creepage distance and prevents the generation of creepage.

[0057] In the transformer device of the present application, since the magnetic core assembly 2, the insulating sleeve assembly 3 and the coil are respectively accommodated in the cavity with an opening of the housing 1, it is beneficial to the heat dissipation of the magnetic core assembly 2 and the coil. There is no need to use the conventional oil seal method in the transformer to achieve cooling. Therefore, the structure of the transformer device of the present application can be significantly simplified, and the volume and weight are greatly reduced, providing a feasible technical implementation means for the application of high-voltage devices in household electrical appliances.

[0058] like Figure 2 , Figure 3 and Figure 6 As shown, in addition to the features of the above embodiments, this embodiment further defines: the bracket assembly 4 includes a first bracket 41 and a second bracket 42, the first bracket 41 and the second bracket 42 are detachably connected, and the first bracket 41 and the second bracket 42 can respectively abut against the magnetic core assembly 2.

[0059] In the above transformer device, the bracket assembly 4 includes a first bracket 41 and a second bracket 42, and the first bracket 41 and the second bracket 42 are detachably connected, so as to facilitate the installation of the transformer device. In addition, the first bracket 41 and the second bracket 42 are detachably connected, and the connection position of the first bracket 41 and the second bracket 42 can be adjusted according to different magnetic core specifications, which is convenient to use and more flexible.

[0060] Optionally, the first bracket 41 and the second bracket 42 are detachably connected by threaded connection. Optionally, the first bracket 41 and the second bracket 42 are detachably connected by plugging.

[0061] like Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, further, a third limiting portion 13 is provided on the shell 1, and a first curved surface 131 is provided on the third limiting portion 13. The first bracket 41 and the second bracket 42 are respectively provided with a second curved surface 411 and a third curved surface 421 that match the first curved surface 131. The first bracket 41 and the second bracket 42 are connected to the first curved surface 131 of the third limiting portion 13 through the second curved surface 411 and the third curved surface 421.

[0062] In the above transformer device, the housing 1 is provided with a third limiter 13. The third limiter 13 is connected to the first bracket and the second bracket 42 respectively. The third limiter 13 is provided with a first arc surface, and the first bracket 41 and the second bracket 42 are provided with a second arc surface and a third arc surface respectively. The first bracket 41 and the second bracket 42 are connected with the first arc surface of the third limiter 13 through the second arc surface and the third arc surface to make the positions of the first bracket 41 and the second bracket 42 on the housing 1 more stable, which is conducive to improving the structural reliability of the transformer device.

[0063] like Figure 1 and Figure 3 As shown, in this embodiment, the magnetic core assembly 2 includes a first magnetic core 21 and a second magnetic core 22. The first magnetic core 21 and the second magnetic core 22 are arranged in a U shape, and the first magnetic core 21 and the second magnetic core 22 are surrounded to form an annular frame.

[0064] In the above transformer device, the magnetic core assembly 2 includes a first magnetic core 21 and a second magnetic core 22, the first magnetic core 21 and the second magnetic core 22 are arranged in a U shape, and the first magnetic core 21 and the second magnetic core 22 enclose a ring-shaped frame. By setting two groups of magnetic cores, it is convenient to remove and install the magnetic core assembly 2 from the transformer device, so that the installation and use of the transformer device is more flexible, and the structure of the transformer device can be further simplified, and the manufacturing process is simpler.

[0065] like Figures 3 to 5 As shown, in this embodiment, the first magnetic core 21 includes a first arm 211, a second arm 212 and a third arm 213, and the third arm 213 is connected to the first arm 211 and the second arm 212 to form a U shape; the second magnetic core 22 includes a fourth arm 221, a fifth arm 222 and a sixth arm 223, and the sixth arm 223 is connected to the fourth arm 221 and the fifth arm 222 to form a U shape, and the first cavity 101 and the second cavity 102 of the shell 1 are respectively provided with a first limiting portion 11 and a second limiting portion 12, and the first limiting portion 11 and the second limiting portion 12 are respectively provided with a first through groove 105 and a second through groove 106, the first arm 211 and the fourth arm 221 are respectively inserted in the first through groove 105 and abut against each other, and the second arm 212 and the fifth arm 222 are respectively inserted in the second through groove 106 and abut against each other.

[0066] In the above transformer device, the third arm 213 is connected to the first arm 211 and the second arm 212 to form the first magnetic core 21, and the sixth arm 223 is connected to the fourth arm 221 and the fifth arm 222 to form the second magnetic core 22. The first limiting portion 11 and the second limiting portion 12 are respectively provided in the first cavity 101 and the second cavity 102 of the housing 1, and the first through slot 105 and the second through slot 106 are respectively provided in the first limiting portion 11 and the second limiting portion 12. The first arm 211 and the fourth arm 221 are respectively inserted in the first through slot 105, and the first arm 211 and the fourth arm 221 are abutted in the first through slot 105. The second arm 212 and the fifth arm 222 are respectively inserted in the second through slot 106, and abutted in the second through slot 106. The magnetic core assembly 2 is assembled in the housing 1 by the above arrangement, and the magnetic core assembly 2 is positioned in the first cavity 101 and the second cavity 102 by the first limiting portion 11 and the second limiting portion 12. The magnetic core positioning structure of the housing 1 is simple, the manufacturing process is simple, and it is suitable for mass production.

[0067] like Figures 3 to 5 As shown, in this embodiment, the third arm 213 and the sixth arm 223 protrude from the first cavity 101 and the second cavity 102 .

[0068] In the above transformer device, further, the third arm 213 and the sixth arm 223 protrude from the first cavity 101 and the second cavity 102 , so that the magnetic core component 2 is partially exposed outside the shell 1 , which is more conducive to the heat dissipation of the magnetic core component 2 .

[0069] like Figures 3 to 5 As shown, in this embodiment, the first insulating sleeve 31 and the second insulating sleeve 32 are respectively sleeved outside the first limiting portion 11 and the second limiting portion 12 .

[0070] In the above-mentioned transformer device, the first insulating sleeve 31 and the second insulating sleeve 32 are respectively sleeved outside the first limiting portion 11 and the second limiting portion 12, thereby realizing the rapid installation and positioning of the first insulating sleeve 31 and the second insulating sleeve 32 in the housing 1. In addition, the first insulating sleeve 31 and the second insulating sleeve 32 are sleeved outside the first limiting portion 11 and the second limiting portion 12, and the magnetic core component 2 is arranged inside the first limiting portion 11 and the second limiting portion 12, thereby realizing the insulation setting of the magnetic core component 2 through the first limiting portion 11 and the second limiting portion 12.

[0071] like Figure 3 and Figure 7 As shown, in this embodiment, a plurality of pressure dividing partitions 321 are further provided on the second insulating sleeve 32 .

[0072] In the above transformer, a plurality of voltage dividing plates 321 are further provided on the second insulating sleeve 32. The above design can arrange the coils on the second insulating sleeve 32 in groups, thereby achieving a voltage dividing effect to meet different voltage regulation requirements.

[0073] In this embodiment, a sealant is disposed on the edge of the first cavity 101 .

[0074] In this embodiment, a sealant is disposed on the edge of the second cavity 102 .

[0075] In this embodiment, sealant is disposed on the edges of the first cavity 101 and the second cavity 102 .

[0076] By providing sealant on the edge of the first cavity 101 and / or the second cavity 102 , the insulation effect of the transformer device can be improved to prevent arcing.

[0077] like Figure 8 and Fig. 9 As shown, in this embodiment, an electric stove includes: a stove body 5, a burner head assembly 6, a heat dissipation device 7, a power supply assembly and a transformer device as claimed in any one of claims 1 to 9, an installation cavity 501 is provided in the stove body 5, at least a part of the burner head assembly 6, the heat dissipation device 7, the power supply assembly and the transformer device are arranged in the installation cavity 501, the power supply assembly is electrically connected to the transformer device and the heat dissipation device 7, and the transformer device is electrically connected to the burner head assembly 6.

[0078] The second aspect of the present application provides an electric stove. In addition to the transformer device of any one of the above items, the electric stove of the present application also includes a stove body 5, a burner assembly 6, a heat sink 7 and a power supply assembly. The above-mentioned electric stove is provided with the transformer device of the present application, so that during the use of the electric stove for voltage conversion, the heat of the magnetic core assembly 2 and the coil in the transformer device can be quickly dissipated into the installation cavity 501 through the first opening and the second opening on the shell 1, and the heat is quickly discharged from the electric stove through the heat sink 7 of the installation cavity 501. By using the transformer device of the present application, the structure of the electric stove is simpler, and the volume and weight are significantly reduced, which is conducive to realizing the lightness of the electric stove product, making it more convenient to manufacture, and better meeting the use requirements of home use.

[0079] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0080] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A transformer device, applied to an electric stove, characterized in that: The voltage transformation device comprises: A shell (1), wherein a first cavity (101) and a second cavity (102) are provided on opposite sides of the shell (1), and a first opening (103) and a second opening (104) are provided on the first cavity (101) and the second cavity (102) respectively; A magnetic core component (2), the magnetic core component (2) enclosing an annular frame, the magnetic core component (2) being at least partially disposed in the first cavity (101) and the second cavity (102) through the first opening (103) and the second opening (104); An insulating sleeve assembly (3), the insulating sleeve assembly (3) comprising a first insulating sleeve (31) and a second insulating sleeve (32), the first insulating sleeve (31) and the second insulating sleeve (32) being respectively wound with a primary coil and a secondary coil, the first insulating sleeve (31) and the second insulating sleeve (32) being respectively sleeved on the magnetic core assembly (2), the first insulating sleeve (31) and the second insulating sleeve (32) being respectively arranged in the first cavity (101) and the second cavity (102); A support assembly (4), the support assembly (4) abuts against the housing (1) and abuts against the magnetic core assembly (2); The bracket assembly (4) comprises a first bracket (41) and a second bracket (42), wherein the first bracket (41) and the second bracket (42) are detachably connected, and the first bracket (41) and the second bracket (42) can abut against the third support arm (213) and the sixth support arm (216); The magnetic core assembly (2) comprises a first magnetic core (21) and a second magnetic core (22), the first magnetic core (21) and the second magnetic core (22) are arranged in a U shape, and the first magnetic core (21) and the second magnetic core (22) are enclosed to form the annular frame; The first magnetic core (21) comprises a first branch arm (211), a second branch arm (212) and a third branch arm (213), wherein the third branch arm (213) is respectively connected to the first branch arm (211) and the second branch arm (212) to form the U-shape; The second magnetic core (22) comprises a fourth arm (221), a fifth arm (222) and a sixth arm (223), wherein the sixth arm (223) is connected to the fourth arm (221) and the fifth arm (222) to form the U-shape. A first limiting portion (11) and a second limiting portion (12) are respectively provided in the first cavity (101) and the second cavity (102) of the shell (1); a first through groove (105) and a second through groove (106) are respectively opened in the first limiting portion (11) and the second limiting portion (12); the first support arm (211) and the fourth support arm (221) are respectively inserted into the first through groove (105) and abut against each other; the second support arm (212) and the fifth support arm (222) are respectively inserted into the second through groove (106) and abut against each other.

2. The voltage transformer according to claim 1, characterized in that: The shell (1) is provided with a third limiting portion (13), and the third limiting portion (13) is provided with a first arcuate surface (131). The first bracket (41) and the second bracket (42) are respectively provided with a second arcuate surface (411) and a third arcuate surface (421) that match the first arcuate surface (131). The first bracket (41) and the second bracket (42) are connected to the first arcuate surface (131) of the third limiting portion (13) through the second arcuate surface (411) and the third arcuate surface (421).

3. The voltage transformation device according to claim 1, characterized in that: The third arm (213) and the sixth arm (223) protrude from the first cavity (101) and the second cavity (102).

4. The voltage transformation device according to claim 1, characterized in that: The first insulating sleeve (31) and the second insulating sleeve (32) are respectively sleeved outside the first limiting portion (11) and the second limiting portion (12).

5. The voltage transformation device according to claim 1, characterized in that: A plurality of pressure dividing partitions (321) are also provided on the second insulating sleeve (32).

6. The voltage transformation device according to claim 1, characterized in that: Sealant is provided on the edge of the first cavity (101) and / or the second cavity (102).

7. An electric stove, characterized in that: include: A stove body (5), a burner head assembly (6), a heat dissipation device (7), a power supply assembly and a transformer device as claimed in any one of claims 1 to 6, wherein an installation cavity (501) is provided in the stove body (5), and at least a part of the burner head assembly (6), the heat dissipation device (7), the power supply assembly and the transformer device are arranged in the installation cavity (501), the power supply assembly is electrically connected to the transformer device and the heat dissipation device (7), and the transformer device is electrically connected to the burner head assembly (6).

Images