A microwave oven transformer skeleton

Abstract

The utility model discloses a microwave oven transformer framework relates to microwave oven field one, including multiple sets of silicon steel sheet, and the outer wall of every group silicon steel sheet is provided with multiple sets of gas guide groove, and the inner wall of silicon steel sheet is provided with the mounting groove, the inside installation of silicon steel sheet has primary winding and secondary winding, primary winding and secondary winding all are through mounting groove and silicon steel sheet snap connection, the lateral wall of mounting groove is provided with support card, and primary winding passes through support card and is fixed with silicon steel sheet limit, and the top of silicon steel sheet is welded and has top seal. The utility model discloses the silicon steel sheet of setting, and the outer wall of multiple sets of silicon steel sheet is provided with gas guide groove and exhaust groove, in the process of using transformer, the outside air flow, will enter primary winding and secondary winding inside through gas guide groove, the heat generated to the winding is absorbed, and hot air current will be discharged through exhaust groove, thereby improved the heat dissipation effect to transformer.

Description

Technical Field

[0001] This utility model relates to the field of microwave ovens, specifically to a microwave oven transformer frame. Background Technology

[0002] A microwave oven is a kitchen appliance that uses microwaves to heat food. It converts electrical energy into microwaves (high-frequency electromagnetic waves) using a magnetron. These microwaves then excite water molecules in the food, creating friction and generating heat to heat or cook the food. The transformer in the microwave oven primarily converts the power supply voltage into a high voltage suitable for the magnetron's operation. The magnetron is the core component of the microwave oven, responsible for converting electrical energy into microwaves, and its operation requires high voltage (typically around several kilovolts).

[0003] Existing technology, such as the microwave oven inverter power transformer disclosed in Chinese Patent Publication No. CN213905087U, includes a winding, a magnetic core, and a frame. The magnetic core includes a central post, connecting posts, and side posts. The frame structure formed by the connecting posts and side posts is supported by the frame. The central post and side posts are located above the frame. The frame has flanges at both ends, and the winding is wound in a slot between the two flanges. The magnetic core has an angle of 40° to 50° with the horizontal plane, and the side posts are located above the central post.

[0004] In existing technologies, although a frame is used to limit the transformer during use, the existing frame is usually made of silicon steel sheet and also serves to constrain the magnetic field. During use, the temperature of both the coil and the frame will rise significantly, but the existing heat dissipation structure only dissipates heat from the outside of the silicon steel sheet, resulting in poor heat dissipation. Secondly, in the process of fixing the coil, the existing technology usually fits tightly to the inner wall of the silicon steel sheet. After the transformer is overloaded and damaged, the coil needs to be replaced and disassembled, which is very inconvenient. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a microwave oven transformer frame to solve the technical problems of poor heat dissipation and inconvenience in disassembling the coil.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a microwave oven transformer frame, comprising multiple sets of silicon steel sheets, each set of silicon steel sheets having multiple sets of air guide grooves on its outer wall and an installation groove on its inner wall. A primary winding and a secondary winding are installed inside the silicon steel sheets, and both the primary winding and the secondary winding are engaged with the silicon steel sheets through the installation grooves. A support clip is provided on the side wall of the installation groove, and the primary winding is fixed to the silicon steel sheets by the support clips. A top seal is welded to the top of the silicon steel sheets.

[0007] By adopting the above technical solution, heat dissipation of silicon steel sheets and windings can be conveniently achieved, and during the heat dissipation process...

[0008] The present invention is further configured such that a middle steel plate is provided inside the silicon steel sheet, and an exhaust groove is provided on the inner wall of the middle steel plate, and the exhaust groove is aligned with the gap between the primary winding and the secondary winding.

[0009] Preferably, it facilitates the dissipation of heat from the windings.

[0010] The present invention is further configured such that the air guide grooves are symmetrically opened on the outer wall of the silicon steel sheet, and a set of air guide grooves are aligned with the support card.

[0011] Preferably, the airflow can pass through the air guide groove to dissipate heat from the primary winding above the support card.

[0012] The present invention is further configured such that the outer wall of the top seal is provided with a sealing edge, and the sealing edge is provided with an opening, the sealing edge limiting the wire through the opening.

[0013] Preferably, it allows for convenient positioning of the wire.

[0014] The present invention is further configured such that a junction plate is provided on the side of both the primary winding and the secondary winding, and a wire is connected to the junction plate.

[0015] Preferably, it facilitates the connection of the winding to external equipment.

[0016] The present invention is further configured such that a through hole is provided at the top of the top seal, and the through hole is used for heat dissipation of the transformer.

[0017] Preferably, this facilitates overall heat dissipation of the transformer.

[0018] In summary, the present invention has the following main advantages:

[0019] This utility model, through the installation slot and support clip, limits the movement of each winding group during the installation of the primary and secondary windings. Furthermore, during the installation of the primary winding, the support clip limits the movement of the primary winding, thereby improving the limiting effect.

[0020] This utility model features silicon steel sheets with air guide grooves and exhaust grooves on the outer wall of multiple sets of silicon steel sheets. During the operation of the transformer, external airflow flows through the air guide grooves and enters the primary and secondary windings to absorb the heat generated by the windings. The hot airflow is then discharged through the exhaust grooves, thereby improving the heat dissipation effect of the transformer. Attached Figure Description

[0021] Figure 1This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the silicon steel sheet of this utility model;

[0023] Figure 3 This utility model Figure 2 A magnified schematic diagram of the partial structure at point A in the middle;

[0024] Figure 4 This is a schematic diagram of the side structure of the silicon steel sheet of this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Silicon steel sheet; 101. Air guide groove; 102. Mounting groove; 103. Medium steel plate; 104. Exhaust groove; 105. Support clip; 2. Top seal; 201. Edge seal; 3. Primary winding; 4. Secondary winding. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0028] The embodiments of this utility model will be described below based on its overall structure.

[0029] Example:

[0030] Please see Figures 1 to 4 A microwave oven transformer frame includes multiple sets of silicon steel sheets 1. Each set of silicon steel sheets 1 has multiple sets of air guide grooves 101 on its outer wall, and an installation groove 102 on its inner wall. A middle steel plate 103 is provided inside the silicon steel sheet 1, and an exhaust groove 104 is provided on the inner wall of the middle steel plate 103. A primary winding 3 and a secondary winding 4 are installed inside the silicon steel sheet 1. The primary winding 3 and the secondary winding 4 are both connected to the silicon steel sheet 1 by engaging with the installation groove 102. The exhaust groove 104 is aligned with the gap between the primary winding 3 and the secondary winding 4. A support clip 105 is provided on the side wall of the installation groove 102. The primary winding 3 is fixed to the silicon steel sheet 1 by the support clip 105. A top seal 2 is welded to the top of the silicon steel sheet 1. The top of the top seal 2 has a through hole, which is used for transformer heat dissipation, which facilitates heat dissipation of the transformer and improves the heat dissipation effect. The coil is supported by the support clip 105.

[0031] For details regarding the above embodiments, please refer to [link / reference]. Figure 2The air guide grooves 101 are symmetrically opened on the outer wall of the silicon steel sheet 1, and a set of air guide grooves 101 are aligned with the support card 105, which can conveniently control the airflow entering the air guide grooves 101 and facilitate heat dissipation of the primary winding 3.

[0032] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 The outer wall of the top seal 2 is provided with a sealing edge 201, and an opening is provided on the sealing edge 201. The sealing edge 201 limits the wire through the opening.

[0033] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 Both the primary winding 3 and the secondary winding 4 have a junction plate on their sides, and wires are connected to the junction plate.

[0034] In the process of use, firstly, multiple sets of silicon steel sheets 1 are attached together, then the secondary winding 4 is installed at the bottom of the mounting slot 102, and then the primary winding 3 is also installed in the mounting slot 102, with the primary winding attached to the support clip 105, thereby limiting the primary winding 3 and realizing the installation of the primary winding 3 and the secondary winding 4. Finally, the top seal 2 is welded to the top of the silicon steel sheet 1 to fix each set of windings.

[0035] During use, the transformer is first installed inside the microwave oven so that the air guide 101 flows in the same direction as the outside airflow. During the use of the transformer, the airflow will enter the primary winding 3 and the secondary winding 4 through the air guide 101 to dissipate heat from the primary winding 3 and the secondary winding 4. During the heat dissipation process, the hot airflow will be discharged through the exhaust duct 104, thereby improving the overall heat dissipation effect of the transformer.

[0036] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A microwave oven transformer frame, comprising multiple sets of silicon steel sheets (1), characterized in that: Each set of silicon steel sheets (1) has multiple sets of air guide grooves (101) on its outer wall, and an installation groove (102) is provided on the inner wall of the silicon steel sheet (1). A primary winding (3) and a secondary winding (4) are installed inside the silicon steel sheet (1). The primary winding (3) and the secondary winding (4) are connected to the silicon steel sheet (1) by the installation groove (102). A support clip (105) is provided on the side wall of the installation groove (102). The primary winding (3) is fixed to the silicon steel sheet (1) by the support clip (105). A top seal (2) is welded to the top of the silicon steel sheet (1).

2. The microwave oven transformer frame according to claim 1, characterized in that: The silicon steel sheet (1) has a middle steel plate (103) inside, and the inner wall of the middle steel plate (103) has an exhaust groove (104) aligned with the gap between the exhaust groove (104) and the primary winding (3) and the secondary winding (4).

3. The microwave oven transformer frame according to claim 1, characterized in that: The air guide grooves (101) are symmetrically opened on the outer wall of the silicon steel sheet (1), and a set of air guide grooves (101) are aligned with the support card (105).

4. The microwave oven transformer frame according to claim 1, characterized in that: The outer wall of the top seal (2) is provided with a sealing edge (201), and an opening is provided on the sealing edge (201). The sealing edge (201) limits the wire through the opening.

5. A microwave oven transformer frame according to claim 1, characterized in that: Both the primary winding (3) and the secondary winding (4) have a junction plate on their sides, and wires are connected to the junction plate.

6. A microwave oven transformer frame according to claim 4, characterized in that: The top of the top seal (2) has a through hole, which is used for heat dissipation of the transformer.

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