Explosion-proof microwave oven capacitor

Abstract

The application relates to the technical field of microwave oven capacitors, in particular to an explosion-proof microwave oven capacitor, which comprises a shell, a protective cover is arranged outside the shell, and a pressure release assembly is arranged between the shell and the protective cover; the pressure release assembly comprises limiting columns, a traction rope and an elastic ball, the limiting columns are arranged at two ends of the protective cover, the traction rope is arranged between the two limiting columns, the elastic ball is fixedly connected with the traction rope, side plates parallel to the protective cover are fixedly connected to the two sides of the elastic ball, the elastic ball comprises two elastic hemispherical shells, a work-shaped block is arranged between the two elastic hemispherical shells, elastic plates are fixedly connected between the elastic hemispherical shells and the work-shaped block, the traction rope is fixedly connected with the work-shaped block, and smooth plates are fixedly connected to opposite sides of the elastic hemispherical shells. The technical problem that the existing capacitor is difficult to release pressure for buffering when being extruded and improve the heat dissipation capacity to reduce the possibility of damage caused by excessive heat of the capacitor when being extruded is solved.

Description

Technical Field

[0001] This invention relates to the field of microwave oven capacitor technology, specifically to an explosion-proof microwave oven capacitor. Background Technology

[0002] Microwave oven capacitors are indispensable components in microwave ovens. They generally include a metal casing, liquid potting compound, core lead sheets, and capacitor core. A search revealed Chinese invention patent application number CN202322779369.4, which discloses an explosion-proof microwave oven capacitor. Through the setting of connecting parts and fixing parts, it can play a buffering and protective role for the arc-shaped cover, avoiding the capacitor being squeezed by external pressure.

[0003] When a capacitor is squeezed, it is prone to heat increase. Although the above-mentioned device plays a certain role in buffering and protection, it is difficult to increase the heat dissipation capacity of the capacitor when it is squeezed, and reduce the possibility of the capacitor being damaged due to excessive heat when squeezed. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an explosion-proof microwave oven capacitor that solves the technical problem that existing capacitors are difficult to release pressure for buffering when squeezed, and improves heat dissipation capacity to reduce the possibility of damage caused by excessive heat when squeezed.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: An explosion-proof microwave oven capacitor includes a housing, a protective cover is installed on the outside of the housing, and a pressure relief assembly is installed between the housing and the protective cover; The pressure relief assembly includes limiting posts, a traction rope, and an elastic ball. The limiting posts are installed at both ends of the protective cover, the traction rope is installed between the two limiting posts, the elastic ball is fixedly connected to the traction rope, and side plates parallel to the protective cover are fixedly connected to both sides of the elastic ball.

[0006] Furthermore, the elastic ball includes two elastic hemispherical shells, an I-shaped block is installed between the two elastic hemispherical shells, an elastic plate is fixedly connected between the elastic hemispherical shells and the I-shaped block, and a traction rope is fixedly connected to the I-shaped block.

[0007] Furthermore, a smooth plate is fixedly connected to one side of the elastic hemispherical shell, and a plurality of heat dissipation holes are provided on one side of the smooth plate.

[0008] Furthermore, the projection of the limiting post on the horizontal plane extends to the inner side of the projection of the outer shell on the horizontal plane, and a ring is sleeved on the outside of the limiting post, with both ends of the traction rope fixedly connected to the ring.

[0009] Furthermore, the outer side of the limiting post is provided with external threads, and a nut is installed on the outside of the limiting post.

[0010] Furthermore, the protective cover includes two half-shells and a mating block, with the two half-shells being fitted and fixed together by the mating block.

[0011] Furthermore, the docking block includes an extension block and a baffle. The extension block is fixedly connected to the outer shell and extends movably to the outside of the protective cover. The baffle is fixedly connected to the extension block.

[0012] Furthermore, a plurality of cylinders are fixedly connected to the side of the baffle near the half shell, and a limiting hole adapted to the cylinder is opened on one side of the half shell, with the cylinder extending into the limiting hole.

[0013] By employing the above technical solution, the present invention provides an explosion-proof microwave oven capacitor, which has at least the following beneficial effects: 1. The present invention enhances the impact resistance of the capacitor by setting a pressure release component, which can release pressure to buffer when the capacitor is squeezed, and improve heat dissipation to reduce the possibility of damage caused by excessive heat when the capacitor is squeezed.

[0014] 2. By setting the limiting post, the present invention not only reduces the difficulty of setting a pressure relief structure between the capacitor and the protective cover, but also can play a certain role in blocking the external force that squeezes the capacitor from both ends, reducing the possibility that the two ends of the capacitor are directly squeezed by external force.

[0015] 3. The present invention, through the setting of half shell, baffle and cylinder, can deform to buffer when the capacitor is squeezed by external force, and at the same time make the protective cover of the squeezed part fall off the capacitor. By reducing the overall volume of the capacitor, the possibility of the capacitor being squeezed by external force is reduced. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of half of the protective cover and the pressure relief assembly of the present invention; Figure 3 This is a partial structural schematic diagram of the pressure relief component of the present invention; Figure 4 This is a schematic diagram of the structure of the elastic ball of the present invention; Figure 5 This is a schematic diagram of the structure of the elastic hemispherical shell, I-shaped block, and elastic plate of the present invention.

[0017] In the diagram: 1. Outer shell; 2. Protective cover; 21. Half shell; 22. Connecting block; 221. Extension block; 222. Baffle; 3. Pressure relief assembly; 31. Limiting post; 32. Traction rope; 33. Elastic ball; 331. Elastic hemispherical shell; 332. I-shaped block; 333. Elastic plate; 34. Side plate; 4. Smooth plate; 5. Heat dissipation hole; 6. Ring; 7. Nut; 8. Cylinder; 9. Limiting hole. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example 1 To cushion the capacitor when it is squeezed and improve heat dissipation, thereby reducing the possibility of the capacitor exploding due to overvoltage or overheating, please refer to... Figures 1-5 This embodiment proposes an explosion-proof microwave oven capacitor, including a housing 1, a protective cover 2 installed on the outside of the housing 1, and a pressure release assembly 3 installed between the housing 1 and the protective cover 2. The pressure release assembly 3 includes a limiting post 31, a traction rope 32 and an elastic ball 33. The limiting post 31 is installed at both ends of the protective cover 2, the traction rope 32 is installed between the two limiting posts 31, the elastic ball 33 is fixedly connected to the traction rope 32, and side plates 34 parallel to the protective cover 2 are fixedly connected to both sides of the elastic ball 33.

[0020] In use, the capacitor core is installed inside the outer casing 1, and the protective cover 2 is fitted over the outer casing 1. The pressure relief components 3 are evenly distributed between the protective cover 2 and the outer casing 1. The elastic ball 33 is made of metal to ensure a certain degree of elasticity when compressed. When the capacitor is compressed by external force, the external force deforms the protective cover 2 inward. The deformed part of the protective cover compresses the elastic ball 33, deforming it to release pressure. At the same time, as the protective cover 2 is compressed and indented, the distance between it and the outer casing 1 decreases, narrowing the elastic ball 33. The side plate 34 on the elastic ball 33 gradually moves closer to the narrowing protective cover 2 and the outer casing 1. Until the two side plates 34 on the elastic ball 33 are attached to the protective cover 2 and the outer shell 1 respectively, the contact area between the elastic ball 33 and the protective cover 2 and the outer shell 1 is increased after the side plates 34 are attached to the protective cover 2 and the outer shell 1. This allows the heat from the outer shell 1 of the capacitor to be transferred to the protective cover 2 more quickly through the elastic ball 33 and the side plates 34, and then dissipated into the surrounding air. This heat dissipation effect is better than when the capacitor is not squeezed, which enhances the capacitor's impact resistance. It can release pressure to buffer when the capacitor is squeezed and improve heat dissipation to reduce the possibility of damage caused by excessive heat when the capacitor is squeezed.

[0021] To ensure that the elastic ball 33 has a certain ability to buffer deformation when compressed, and to increase the contact area between the outer shell 1 and the protective cover 2 of the variable container to improve heat dissipation, refer to... Figure 5 The elastic ball 33 includes two elastic hemispherical shells 331, an I-shaped block 332 is installed between the two elastic hemispherical shells 331, an elastic plate 333 is fixedly connected between the elastic hemispherical shells 331 and the I-shaped block 332, a traction rope 32 is fixedly connected to the I-shaped block 332, a smooth plate 4 is fixedly connected to the opposite side of the elastic hemispherical shells 331, and a plurality of heat dissipation holes 5 are opened on one side of the smooth plate 4.

[0022] In use, the elastic plate 333 pushes the elastic hemispherical shell 331 away from the I-shaped block 332, so that the elastic ball 33 is in its largest volume. When the capacitor is squeezed by external force, the protective cover 2 is squeezed and dented, pushing the two elastic hemispherical shells 331 to gradually approach each other and squeezing and bending the elastic plate 333. When the two elastic hemispherical shells 331 are still squeezed and close after they come into contact, the elastic hemispherical shells 331 are squeezed and deformed, and slide along the smooth plate 4. The smooth plate 4 ensures that the two elastic hemispherical shells 331 can always maintain a large contact area when they are squeezed and deformed, so that the heat on the outer shell 1 of the capacitor can be transferred to the protective cover 2 through the elastic hemispherical shells 331 and the smooth plate 4. At the same time, the heat dissipation hole 5 increases the speed at which the heat on the elastic ball 33 dissipates into the surrounding air, which buffers and accelerates the speed at which the heat on the capacitor is transferred to the external protective cover 2.

[0023] To reduce the possibility of external forces directly squeezing the capacitor from both ends, refer to... Figure 2The projection of the limiting post 31 on the horizontal plane extends to the inner side of the projection of the outer shell 1 on the horizontal plane. A ring 6 is sleeved on the outside of the limiting post 31. Both ends of the traction rope 32 are fixedly connected to the ring 6. The outer side of the limiting post 31 is provided with external threads. A nut 7 is installed on the outside of the limiting post 31.

[0024] In use, the limiting posts 31 extend from both sides of the outer shell 1 to the top of the outer shell 1, blocking external forces from directly impacting the capacitor from both ends. When the two ends of the capacitor are squeezed by external forces, part of the squeeze will be blocked by the limiting posts 31 and then act on the limiting posts 31. Only external forces directly facing the two ends of the capacitor will squeeze the outer shell 1 of the capacitor. Moreover, the limiting posts 31 can easily fix the pressure relief component 3 between the outer shell 1 and the protective cover 2, which not only reduces the difficulty of setting up a pressure relief structure between the capacitor and the protective cover 2, but also plays a certain role in blocking external forces that squeeze the capacitor from both ends, reducing the possibility that the two ends of the capacitor will be directly squeezed by external forces.

[0025] Example 2 To improve the protective effect of capacitors when they are squeezed, refer to Figure 2 , refer to Figures 1-5 Based on Embodiment 1, the protective cover 2 includes two half-shells 21 and a docking block 22. The two half-shells 21 are fitted and fixed together by the docking block 22. The docking block 22 includes an extension block 221 and a baffle 222. The extension block 221 is fixedly connected to the outer shell 1 and extends movably to the outside of the protective cover 2. The baffle 222 is fixedly connected to the extension block 221. A plurality of cylinders 8 are fixedly connected to the side of the baffle 222 near the half-shell 21. A limiting hole 9 adapted to the cylinder 8 is opened on one side of the half-shell 21, and the cylinder 8 extends into the limiting hole 9.

[0026] In use, the protective cover 2 is composed of two half-shells 21 joined together by a mating block 22. When the capacitor is squeezed by external force, the protective cover 2 is deformed to release pressure and buffer the impact. At the same time, the joined protective cover 2 is dispersed and detached from the capacitor. By reducing the volume of the capacitor when it is squeezed, the possibility of further compression by external force is reduced. The specific process is as follows: When the protective cover 2 is squeezed by an external force, the squeezed half shell 21 deforms towards the outer shell 1. During this process, the half shell 21 gradually moves away from the baffle 222. The cylinder 8 on the baffle 222 disengages from the limiting hole 9 on the half shell 21. After the half shell 21 is no longer limited by the cylinder 8, it falls off the outer shell 1. After the outer shell 1 is free of the half shell 21, its volume decreases. This can buffer the capacitor by deforming when it is squeezed by an external force, and also allow the protective cover 2 at the squeezed part to fall off the capacitor. By reducing the overall volume of the capacitor, the possibility of the capacitor being squeezed by an external force is reduced.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof microwave oven capacitor, comprising a housing (1), characterized in that, A protective cover (2) is installed on the outside of the outer shell (1), and a pressure relief assembly (3) is installed between the outer shell (1) and the protective cover (2). The pressure relief assembly (3) includes a limiting post (31), a traction rope (32) and an elastic ball (33). The limiting post (31) is installed at both ends of the protective cover (2), the traction rope (32) is installed between the two limiting posts (31), the elastic ball (33) is fixedly connected to the traction rope (32), and side plates (34) parallel to the protective cover (2) are fixedly connected to both sides of the elastic ball (33).

2. The explosion-proof microwave oven capacitor according to claim 1, characterized in that, The elastic ball (33) includes two elastic hemispherical shells (331), an I-shaped block (332) is installed between the two elastic hemispherical shells (331), an elastic plate (333) is fixedly connected between the elastic hemispherical shells (331) and the I-shaped block (332), and a traction rope (32) is fixedly connected to the I-shaped block (332).

3. The explosion-proof microwave oven capacitor according to claim 2, characterized in that, A smooth plate (4) is fixedly connected to one side of the elastic hemispherical shell (331), and a plurality of heat dissipation holes (5) are provided on one side of the smooth plate (4).

4. The explosion-proof microwave oven capacitor according to claim 1, characterized in that, The projection of the limiting post (31) on the horizontal plane extends to the inner side of the projection of the outer shell (1) on the horizontal plane. A ring (6) is sleeved on the outside of the limiting post (31), and both ends of the traction rope (32) are fixedly connected to the ring (6).

5. The explosion-proof microwave oven capacitor according to claim 1, characterized in that, The limiting post (31) has an external thread on its outer side, and a nut (7) is installed on the outside of the limiting post (31).

6. The explosion-proof microwave oven capacitor according to claim 1, characterized in that, The protective cover (2) includes two half shells (21) and a docking block (22), and the two half shells (21) are fitted and fixed together by the docking block (22).

7. The explosion-proof microwave oven capacitor according to claim 6, characterized in that, The docking block (22) includes an extension block (221) and a baffle (222). The extension block (221) is fixedly connected to the outer shell (1). The extension block (221) extends movably to the outside of the protective cover (2). The baffle (222) is fixedly connected to the extension block (221).

8. The explosion-proof microwave oven capacitor according to claim 7, characterized in that, The baffle (222) is fixedly connected to a plurality of cylinders (8) on the side near the half shell (21). A limiting hole (9) adapted to the cylinder (8) is opened on one side of the half shell (21), and the cylinder (8) extends into the limiting hole (9).

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