A dry-type high-voltage capacitor for microwave ovens

Abstract

The present invention discloses a dry-type high-voltage capacitor for a microwave oven, which relates to the technical field related to capacitors. The capacitor body comprises a base, a shell fixedly mounted on the capacitor body, a heat pipe nested on the shell, a heat dissipation frame provided on the heat pipe, a heat dissipation aluminum sheet fixedly mounted on the outer surface of the heat dissipation frame away from the heat pipe, a first mounting groove is provided on the base at a position corresponding to the heat dissipation frame, and an elastic component is provided on the capacitor body. The present invention has the beneficial effects that the device plays a role in dissipating heat for the capacitor body through the heat dissipation aluminum sheet and the heat dissipation frame with the assistance of the heat pipe, and the heat dissipation frame is easy to install and disassemble with the cooperation of the elastic component, and the heat dissipation unit is convenient to install and replace, which is beneficial to improving the heat dissipation effect of the device and improving the heat dissipation capacity of the device.

Description

Technical Field

[0001] The present invention relates to the technical field related to capacitors, and in particular to a dry-type high-voltage capacitor for microwave ovens. Background Art

[0002] One of the key components of high-voltage capacitor-type microwave ovens. In the microwave oven circuit, the high-voltage capacitor and the high-voltage diode form a half-wave voltage doubler rectifier circuit, which rectifies the 2100V AC voltage output from the secondary of the high-voltage capacitor to the 4200V DC voltage required by the magnetron, while reducing the weight and volume of the high-voltage transformer.

[0003] The Chinese invention patent with patent publication number CN113066664A is named a new dry-type high-voltage capacitor for microwave ovens. The device uses aluminum as the packaging shell of the capacitor, which has good heat dissipation, flame retardancy and mechanical properties; the filling material uses thermally conductive explosion-proof and flame-retardant material, and explosion-proof blocks are provided to improve the safety and explosion-proof performance of the capacitor; the high-voltage diode is integrated into the capacitor to form an integrated structure, which is convenient for use and installation and improves production efficiency.

[0004] The above device still has some shortcomings when used. The heat dissipation effect of the above device through the material is not very obvious, and it is not convenient to replace the heat dissipation structure, which affects the heat dissipation capacity of the device. Therefore, a dry high-voltage capacitor for microwave ovens that can solve the above problems is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a dry-type high-voltage capacitor for a microwave oven to solve the following technical problems: the heat dissipation effect through the material is not very obvious, and it is inconvenient to replace the heat dissipation structure, which affects the heat dissipation capacity of the device.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] The heat dissipation frame is provided with a heat dissipation frame, and the heat dissipation frame is fixedly installed on the heat dissipation frame, and the heat dissipation frame is fixedly installed with a heat dissipation frame away from the outer surface of the heat dissipation frame. The heat dissipation frame is fixedly installed with a heat dissipation frame away from the outer surface of the heat dissipation frame. The heat dissipation frame is provided with a first mounting groove at a position corresponding to the heat dissipation frame. The capacitor body is provided with an elastic component, and the elastic component includes a third spring, and the capacitor body is provided with a receiving groove at one end away from the base. A retraction plate is slidably installed in the receiving groove, the third spring is fixedly installed on the retraction plate, and one end of the third spring is fixedly installed on the retraction plate. The inner walls of both sides of the receiving groove are provided with a waist-shaped through hole, a sliding column is slidably installed in the waist-shaped through hole, and the other end of the sliding column is fixedly installed on the retraction plate. A protective frame is provided on the capacitor body, a clamping assembly is provided on the capacitor body, and a limiting assembly and a fixing assembly are provided on the base.

[0008] As a further solution of the present invention: the limiting assembly includes a limiting rod, the heat dissipation frame is slidably installed in the first installation groove, the base is provided with a first movable groove on the side close to the heat dissipation frame, the limiting rod is slidably installed on the first movable groove, a limiting hole is provided on the heat dissipation frame at a position corresponding to the limiting rod, a baffle is fixedly installed on the limiting rod, and a first spring is fixedly installed on the baffle.

[0009] As a further solution of the present invention: one end of the first spring away from the first installation groove is fixedly installed on the inner wall of the first movable groove, the first spring is nested and installed on the outer surface of the limiting rod, and the limiting rod is inserted into the limiting hole.

[0010] As a further solution of the present invention: the fixing assembly includes a fixing plate, a fourth movable groove is provided on the side of the capacitor body close to the base, fixing grooves are provided on the inner walls on both sides of the fourth movable groove, a third movable groove is provided on the side of the base close to the fixed groove, a reciprocating screw is rotatably installed in the third movable groove, the fixing plate is threadedly installed on the reciprocating screw, and a driving knob is provided on the base.

[0011] As a further solution of the present invention: a second mounting groove is opened on one side of the base, one end of the reciprocating screw is threaded through the second mounting groove and fixedly installed with a first bevel gear, the driving knob is rotatably installed on the inner wall of the second mounting groove, and the second bevel gear is fixedly installed on one end of the driving knob close to the first bevel gear, and the first bevel gear and the second bevel gear are meshed and connected with each other.

[0012] As a further solution of the present invention: a protrusion is fixedly mounted on a side of the protection frame close to the capacitor body, a groove is formed on a side of the housing corresponding to the protrusion, and the protrusion is inserted into the groove.

[0013] As a further solution of the present invention: the locking assembly includes a locking plate, a second movable groove is provided on the side of the shell close to the protective frame, the locking plate is slidably installed on the inner walls at both ends of the second movable groove, an operating plate is fixedly installed on the end of the two locking plates away from the groove, a second spring is fixedly installed between the two operating plates, and a locking through hole is provided on the position of the protrusion corresponding to the locking plate.

[0014] As a further solution of the present invention: a balance bar is slidably installed on the operating panel, both ends of the balance bar are fixedly installed on the inner wall of the second movable groove, and the second spring is nested and installed on the outer surface of the balance bar.

[0015] As a further solution of the present invention: a limiting block is fixedly installed on the inner bottom wall of the second movable groove, the engaging plate is slidably installed in the engaging through hole, and the limiting block is installed in the middle position of the second movable groove.

[0016] Beneficial effects of the present invention:

[0017] (1) The device dissipates heat for the capacitor body through the heat dissipation aluminum sheet and the heat dissipation frame with the assistance of the heat dissipation pipe. With the cooperation of the elastic component, it is easy to install and disassemble the heat dissipation frame, and it is convenient to install and replace the heat dissipation unit, which is beneficial to improving the heat dissipation effect of the device and improving the heat dissipation capacity of the device;

[0018] (2) The limiting assembly pulls the limiting rod so that the limiting rod drives the baffle to squeeze the first spring in the first movable groove, and then inserts the heat dissipation frame into the first installation groove, and then loosens the limiting rod so that the limiting rod is inserted into the limiting hole, which is convenient for limiting and stabilizing the heat dissipation frame, and then rotates the driving knob so that the driving knob drives the reciprocating screw to rotate through the engagement of the first umbrella gear and the second umbrella gear, so that the reciprocating screw drives the fixing plate to be inserted into the fixing groove, which is convenient for fixing the position of the capacitor body and is conducive to improving the safety and stability of the device;

[0019] (3) The locking assembly drives the locking plate to slide on the balance bar by squeezing the operating plate against each other, and makes the operating plate squeeze the second spring, and at the same time makes the operating plate drive the locking plate to completely retract into the second movable groove, and then moves the protective frame to drive the protrusion to be inserted into the groove, and then releases the operating plate, so that the operating plate drives the locking plate to be inserted into the locking through hole, which is convenient for locking the limit protection frame, is beneficial to protecting the terminal of the device, is beneficial to improving the protection capability of the device, and is beneficial to avoiding damage to the terminal as much as possible, which is beneficial to extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the explosion structure of a dry-type high-voltage capacitor for a microwave oven according to the present invention;

[0022] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0023] Figure 3 yes Figure 1 Schematic diagram of the enlarged structure at B in the middle;

[0024] Figure 4 This is a schematic diagram of the internal structure of a dry-type high-voltage capacitor for a microwave oven according to the present invention;

[0025] Figure 5 yes Figure 4 Schematic diagram of the enlarged structure at C in the middle;

[0026] Figure 6 yes Figure 4 Schematic diagram of the enlarged structure at D in the middle;

[0027] Figure 7 yes Figure 4 Schematic diagram of the enlarged structure at E in the middle;

[0028] Figure 8 The present invention is a bottom-up structural schematic diagram of a dry-type high-voltage capacitor for microwave ovens.

[0029] Figure: 1. Capacitor body; 2. Housing; 3. Heat dissipation frame; 4. Heat dissipation aluminum sheet; 5. First mounting slot; 6. Limiting assembly; 61. Limiting rod; 62. First movable slot; 63. First spring; 64. Baffle; 65. Limiting hole; 7. Clamping assembly; 71. Operation panel; 72. Clamping plate; 73. Balance rod; 74. Second spring; 75. Limiting block; 76. Clamping through hole; 77. Second movable slot; 8. Elastic assembly; 81 , sliding column; 82, storage groove; 83, third spring; 84, retraction plate; 85, waist-shaped through hole; 9, fixing component; 91, third movable groove; 92, first umbrella-shaped gear; 93, second umbrella-shaped gear; 94, driving knob; 95, second mounting groove; 96, reciprocating screw; 97, fixing plate; 98, fixing groove; 10, heat pipe; 11, base; 12, protective frame; 13, bump; 14, groove; 15, fourth movable groove. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0031] See also Figure 1 - Figure 8 As shown, the present invention is a dry-type high-voltage capacitor for microwave ovens, comprising a capacitor body 1, a base 11 being provided at the bottom of the capacitor body 1, a shell 2 being fixedly mounted on the capacitor body 1, the shell 2 being filled with heat dissipation explosion-proof material, a heat dissipation pipe 10 being nested and mounted on the shell 2, the heat dissipation pipe 10 being convenient for conducting heat to a heat dissipation frame 3, and heat dissipation operation being performed through a heat dissipation aluminum sheet 4, thereby playing a role in heat dissipation explosion-proofing, a heat dissipation frame 3 being provided on the heat dissipation pipe 10, the heat dissipation frame 3 not only playing a role in heat dissipation, but also playing a role in protecting the capacitor body 1, and the heat dissipation frame 3 is far away A heat dissipation aluminum sheet 4 is fixedly installed on the outer surface of the heat dissipation tube 10, and the heat dissipation aluminum sheet 4 plays a role in increasing the contact area between the heat dissipation frame 3 and the air. A first mounting groove 5 is provided on the base 11 at a position corresponding to the heat dissipation frame 3. An elastic component 8 is provided on the capacitor body 1, and the elastic component 8 includes a third spring 83. A receiving groove 82 is provided at one end of the capacitor body 1 away from the base 11, and a retracting plate 84 is slidably installed in the receiving groove 82. The third spring 83 is fixedly installed on the retracting plate 84, and the third spring 83 plays a role in driving the retracting plate 84 to elastically reset. The ends of the three springs 83 away from the retracting plate 84 are fixedly mounted on the inner wall of the receiving groove 82. Waist-shaped through holes 85 are provided on the inner walls of both sides of the receiving groove 82. Slide posts 81 are slidably mounted in the waist-shaped through holes 85. The slide posts 81 play a role in limiting and stabilizing the position of the retracting plate 84 in the receiving groove 82. The other end of the slide post 81 is fixedly mounted on the retracting plate 84. A protective frame 12 is provided on the capacitor body 1. The protective frame 12 starts the function of protecting the terminal. A snap-fit ​​assembly 7 is provided on the capacitor body 1. A limit assembly 6 and a fixing assembly 9 are provided on the base 11 so that When using the device, first install the heat pipe 10 on the shell 2, and then manually squeeze the contraction plate 84 so that the contraction plate 84 squeezes the third spring 83, so that the third spring 83 is in a contracted state, and at the same time, the contraction plate 84 drives the sliding column 81 to slide in the waist-shaped through hole 85. When the contraction plate 84 is completely contracted into the storage groove 82, the heat dissipation frame 3 with the heat dissipation aluminum sheet 4 is driven to be nested on the outer surface of the heat pipe 10, and the heat dissipation frame 3 is inserted into the first installation groove 5, which is convenient for installing the heat dissipation frame 3, which is beneficial to improving the heat dissipation effect of the device and the heat dissipation capacity of the device.

[0032] The limiting assembly 6 includes a limiting rod 61, the heat dissipation frame 3 is slidably installed in the first mounting groove 5, and a first movable groove 62 is provided on the side of the base 11 close to the heat dissipation frame 3. The limiting rod 61 is slidably installed on the first movable groove 62, and a limiting hole 65 is provided on the heat dissipation frame 3 at a position corresponding to the limiting rod 61. A baffle 64 is fixedly installed on the limiting rod 61, and the baffle 64 plays the role of limiting the first spring 63. A first spring 63 is fixedly installed on the baffle 64, and one end of the first spring 63 away from the first mounting groove 5 is fixedly installed on the inner wall of the first movable groove 62. The first spring 63 is nested on the outer surface of the limiting rod 61, and the first spring 63 plays the role of driving the limiting rod 61 to elastically move. The reset is inserted into the limiting hole 65, and the limiting rod 61 is inserted into the limiting hole 65, which is convenient for limiting and stabilizing the position of the heat dissipation frame 3 in the first installation groove 5, and plays the role of limiting and stabilizing the heat dissipation frame 3. When using the device, first pull the limiting rod 61, so that the limiting rod 61 drives the baffle 64 to squeeze the first spring 63 in the first movable groove 62, so that the first spring 63 is in a compressed state, and at the same time, the limiting rod 61 is retracted into the first movable groove 62, and then the heat dissipation frame 3 is inserted into the first installation groove 5, and then the limiting rod 61 is released, so that the limiting rod 61 is inserted into the limiting hole 65 under the elastic action of the first spring 63, which is convenient for limiting and stabilizing the heat dissipation frame 3, which is beneficial to improving the safety and stability of the device.

[0033] The fixing assembly 9 includes a fixing plate 97. A fourth movable groove 15 is provided on the side of the capacitor body 1 close to the base 11. Fixed grooves 98 are provided on the inner walls on both sides of the fourth movable groove 15. A third movable groove 91 is provided on the side of the base 11 close to the fixed groove 98. A reciprocating screw 96 is rotatably installed in the third movable groove 91. A fixing plate 97 is threadedly installed on the reciprocating screw 96. The fixing plate 97 is inserted into the fixing groove 98. The bottom surface of the fixing plate 97 slides in contact with the third movable groove 91. A driving knob 94 is provided on the base 11.

[0034] A second mounting slot 95 is provided on one side of the base 11, and one end of the reciprocating screw 96 is threadedly passed through the second mounting slot 95 to fix the first bevel gear 92, and the driving knob 94 is rotatably mounted on the inner wall of the second mounting slot 95, and the second bevel gear 93 is fixedly mounted on the end of the driving knob 94 close to the first bevel gear 92, and the first bevel gear 92 and the second bevel gear 93 are meshed and connected with each other. When using the device, first rotate the driving knob 94 to make the driving knob 94 drive the second bevel gear 93 to rotate, and at the same time make the second bevel gear 93 drive the first bevel gear 92 to rotate, and at the same time make the first bevel gear 92 drive the reciprocating screw 96, and at the same time make the reciprocating screw 96 drive the fixing plate 97 to be inserted into the fixing slot 98, so as to facilitate the fixing of the shell 2 on the base 11, facilitate installation and disassembly, and help to improve the firmness of the device and the installation efficiency of the device.

[0035] A protrusion 13 is fixedly mounted on the side of the protection frame 12 close to the capacitor body 1 , and a groove 14 is provided on the side of the housing 2 corresponding to the protrusion 13 . The protrusion 13 is inserted into the groove 14 , making it easy to position the protection frame 12 on the housing 2 .

[0036] When the locking cam 75 is in the closed position, the locking cam 73 is locked and the locking cam 73 is in the closed position, so that the two locking cams 73 can be locked together. If locking sill 752 snap on the positioning plate 74 away from that locking mouth 741 of coupling bar 73, then lock core 71 is in the state that stretches out guide pin bushing 74, and lock core 71 is in the state that stretches out guide pin bushing 74, and lock core 71 is in the state of being retracted, thus guaranteeing that locking sill 74 is in the state of being retracted.

[0037] When the heat dissipation frame 3 is fully retracted into the receiving groove 82, the heat dissipation frame 3 with the heat dissipation aluminum sheet 4 is moved to be nested on the outer surface of the heat dissipation pipe 10, and then the limiting rod 61 is pulled, so that the limiting rod 61 drives the baffle 64 to squeeze the first spring 63 in the first movable groove 62, so that the first spring 63 is in a compressed state, and at the same time, the limiting rod 61 is retracted into the first movable groove 62, and then the heat dissipation frame 3 is inserted into the first mounting groove 5, and then the limiting rod 61 is loosened, so that the limiting rod 61 is inserted into the limiting hole 65 under the elastic action of the first spring 63, which is convenient for limiting and stabilizing the heat dissipation frame 3, and then the driving knob 94 is turned to drive the driving knob 94. The second gear 72 is rotated by the second spring 74, and the second spring 74 is compressed, so that the second spring 74 is compressed and the second spring 74 is compressed, so that the second gear 72 is completely retracted into the second movable groove 77. When the operating plate 71 moves to the limit block 75, the protective frame 12 is lifted and the protrusion 13 is inserted into the groove 14. Then the operating plate 71 is released, so that the operating plate 71 drives the clamping plate 72 to be inserted into the clamping through hole 76 under the elastic force of the second spring 74, so as to engage the limit protection frame 12.

[0038] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A dry-type high-voltage capacitor for a microwave oven, comprising a capacitor body (1), characterized in that: The bottom of the capacitor body (1) is provided with a base (11), a shell (2) is fixedly mounted on the capacitor body (1), a heat pipe (10) is nested and mounted on the shell (2), a heat dissipation frame (3) is provided on the heat dissipation frame (3), a heat dissipation aluminum sheet (4) is fixedly mounted on the outer surface of the heat dissipation frame (3) away from the heat dissipation pipe (10), a first mounting groove (5) is provided on the base (11) at a position corresponding to the heat dissipation frame (3), an elastic component (8) is provided on the capacitor body (1), the elastic component (8) includes a third spring (83), a receiving groove (82) is provided on one end of the capacitor body (1) away from the base (11), the A retractable plate (84) is slidably mounted in the receiving groove (82), the third spring (83) is fixedly mounted on the retractable plate (84), one end of the third spring (83) away from the retractable plate (84) is fixedly mounted on the inner wall of the receiving groove (82), waist-shaped through holes (85) are provided on the inner walls on both sides of the receiving groove (82), a sliding column (81) is slidably mounted in the waist-shaped through hole (85), the other end of the sliding column (81) is fixedly mounted on the retractable plate (84), a protective frame (12) is provided on the capacitor body (1), a locking assembly (7) is provided on the capacitor body (1), and a limiting assembly (6) and a fixing assembly (9) are provided on the base (11).

2. A dry-type high-voltage capacitor for a microwave oven according to claim 1, characterized in that: The limiting assembly (6) includes a limiting rod (61), the heat dissipation frame (3) is slidably installed in the first installation groove (5), a first movable groove (62) is provided on a side of the base (11) close to the heat dissipation frame (3), the limiting rod (61) is slidably installed in the first movable groove (62), a limiting hole (65) is provided at a position on the heat dissipation frame (3) corresponding to the limiting rod (61), a baffle (64) is fixedly installed on the limiting rod (61), and a first spring (63) is fixedly installed on the baffle (64).

3. A dry-type high-voltage capacitor for a microwave oven according to claim 2, characterized in that: One end of the first spring (63) away from the first mounting groove (5) is fixedly mounted on the inner wall of the first movable groove (62), and the first spring (63) is nested and mounted on the outer surface of the limiting rod (61), and the limiting rod (61) is inserted into the limiting hole (65).

4. The dry-type high-voltage capacitor for microwave ovens according to claim 1, characterized in that: The fixing assembly (9) includes a fixing plate (97), a fourth movable groove (15) is provided on a side of the capacitor body (1) close to the base (11), and fixing grooves (98) are provided on the inner walls on both sides of the fourth movable groove (15), a third movable groove (91) is provided on a side of the base (11) close to the fixing groove (98), a reciprocating screw (96) is rotatably installed in the third movable groove (91), the fixing plate (97) is threadedly installed on the reciprocating screw (96), and a driving knob (94) is provided on the base (11).

5. The dry-type high-voltage capacitor for microwave ovens according to claim 4, characterized in that: A second mounting groove (95) is provided on one side of the base (11); one end of the reciprocating screw (96) is threadedly passed through the second mounting groove (95) and fixedly mounted with a first bevel gear (92); the driving knob (94) is rotatably mounted on the inner wall of the second mounting groove (95); a second bevel gear (93) is fixedly mounted on one end of the driving knob (94) close to the first bevel gear (92); the first bevel gear (92) and the second bevel gear (93) are meshed and connected with each other.

6. The dry-type high-voltage capacitor for microwave ovens according to claim 1, characterized in that: A protrusion (13) is fixedly mounted on the side of the protective frame (12) close to the capacitor body (1), and a groove (14) is provided on the side of the housing (2) corresponding to the protrusion (13), and the protrusion (13) is inserted into the groove (14).

7. A dry-type high-voltage capacitor for a microwave oven according to claim 6, characterized in that: The snap-fit ​​assembly (7) includes a snap-fit ​​plate (72), a second movable groove (77) is provided on a side of the housing (2) close to the protective frame (12), and the snap-fit ​​plate (72) is slidably installed on the inner walls at both ends of the second movable groove (77), an operating plate (71) is fixedly installed at one end of the two snap-fit ​​plates (72) away from the groove (14), a second spring (74) is fixedly installed between the two operating plates (71), and a snap-fit ​​through hole (76) is provided on the protrusion (13) at a position corresponding to the snap-fit ​​plate (72).

8. The dry-type high-voltage capacitor for microwave ovens according to claim 7, characterized in that: A balancing rod (73) is slidably installed on the operating plate (71), and both ends of the balancing rod (73) are fixedly installed on the inner wall of the second movable groove (77), and the second spring (74) is nested and installed on the outer surface of the balancing rod (73).

9. The dry-type high-voltage capacitor for microwave ovens according to claim 8, characterized in that: A limiting block (75) is fixedly mounted on the inner bottom wall of the second movable groove (77), the engaging plate (72) is slidably mounted in the engaging through hole (76), and the limiting block (75) is mounted at a middle position of the second movable groove (77).

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