A stable solid aluminum electrolytic capacitor

Abstract

This invention relates to the field of capacitor technology, specifically disclosing a stable solid aluminum electrolytic capacitor, comprising a capacitor body, a protective ring disposed on the top of the capacitor body, a pneumatic box mounted on the top of the protective ring, a through groove in the middle of the protective ring, and a guide plate fixedly connected inside the through groove. This invention utilizes the coordinated arrangement of the protective ring, pneumatic box, guide plate, and whistle. When a user mistakenly connects the positive and negative terminals of the leads at the bottom of the capacitor body incorrectly, the internal temperature of the capacitor body rapidly rises, heating the electrolyte inside and causing it to expand and break through the pressure relief groove. The expanded, high-pressure gas is then rapidly propelled into the through groove, guided by the guide plate, and impacts a striking ball inside the whistle before exiting from the whistle opening, producing a sound to alert the user.

Description

Technical Field

[0001] The invention belongs to the technical field of capacitors, and in particular relates to a stable solid-state aluminum electrolytic capacitor. Background Art

[0002] Solid aluminum electrolytic capacitors, short for conductive polymer solid aluminum electrolytic capacitors, are one of the most advanced capacitor products currently available. Solid aluminum electrolytic capacitors are mainly composed of two metal electrodes and a solid electrolyte (usually a conductive polymer material) sandwiched between them. When voltage is applied to the metal electrodes of the capacitor, the electric field separates the electrons and holes in the solid electrolyte to form charge storage. In addition, in solid aluminum electrolytic capacitors, a cross pressure relief valve slot is opened on the top to relieve pressure when the capacitor fails.

[0003] In a Chinese patent with publication number CN22201882U, a stable solid-state aluminum electrolytic capacitor is mentioned, including a capacitor body, the bottom of the capacitor body is sleeved with a sheath, the sheath is made of elastic material, the sheath has at least three clamping plates, the inner side of the clamping plate is provided with clamping protrusions, the clamping protrusions match the annular grooves on the head of the capacitor body, the pins of the capacitor body are set through the sheath, and a supporting device is set outside the clamping plate; the supporting device includes a connecting piece fixed on the clamping plate, the connecting piece is a hollow structure, and a supporting leg is set through the inside, a plurality of clamping teeth are set on the outside of the supporting leg, a torsion spring shaft is set on the outside of the connecting piece, a pressing plate is set on the torsion spring shaft, and a plug-in plate is set at the lower end of the pressing plate, and the plug-in plate is inserted through the clamping teeth. The utility model can support the capacitor by setting a supporting device, reduce the force strength of the pins, and increase the firmness and stability of the capacitor when it is installed;

[0004] Although the existing stable solid aluminum electrolytic capacitors have excellent performance in many aspects, such as high thermal stability, long life, low ESR, and high voltage and temperature resistance, when the user causes the capacitor pins to be connected incorrectly due to negligence or misoperation, the temperature inside the capacitor will rise rapidly. Since the pressure relief valve slot is located above the capacitor, once the pressure relief is triggered, high-temperature, high-pressure steam or electrolyte may be directly sprayed upward, posing a great threat to the user. Summary of the invention

[0005] The object of the present invention is to provide a stable solid aluminum electrolytic capacitor to solve the problems existing in the prior art.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A stable solid-state aluminum electrolytic capacitor comprises a capacitor body, a protective ring is arranged above the capacitor body, a pneumatic box is installed above the protective ring, a through groove is provided in the middle of the protective ring, a guide plate is fixedly connected to the inside of the through groove, a whistle pipe is connected to the top of the guide plate, slide grooves are provided on the inner walls of both sides of the through groove, a piston block is slidably connected to the inside of the slide groove, and an annular groove is provided below the through groove; an annular block is embedded in the annular groove, the piston block is used to release the annular block, and the guide plate is used to guide the gas-liquid mixture during pressure relief; the piston block is used to enclose the top of the capacitor body, the pneumatic box is used to continuously inject airflow into the through groove, and the whistle pipe is used to give a sound prompt when the airflow and the gas-liquid mixture pass through.

[0008] Preferably, the bottom end of the guide plate is located at the upper end of the slide groove, a push rod is fixedly connected to one side of the piston block, a clamping groove is provided at the top end of the annular groove, and the clamping groove is connected to the slide groove.

[0009] Preferably, a positioning hook is fixedly connected to the top of the ring block, the positioning hook fits into the slot, the positioning hook is located on one side of the push rod, and the push rod is used to squeeze the positioning hook.

[0010] Preferably: an inlet check valve is arranged above the pneumatic box, an exhaust pipe is arranged below the pneumatic box, the exhaust pipe is inserted into the inside of the protective ring, the exhaust pipe is connected to the slide groove, and the piston block is located at the connection between the exhaust pipe and the slide groove.

[0011] Preferably, a whistle opening is provided on one side of the whistle tube, a top cover is fixedly connected to the top of the whistle tube, and a billiard ball is connected to the bottom of the top cover via a connecting rope.

[0012] Preferably, a bottom plate is installed below the capacitor body, and fixedly connected connecting columns are evenly distributed around the periphery of the bottom plate, and the top ends of the connecting columns are fixedly connected to the periphery of the protective ring.

[0013] Preferably, a pressure relief groove is provided above the capacitor body, and the pressure relief groove is used for pressure relief.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention cooperates with each other through the protective ring, pneumatic box, guide plate and whistle tube. When the user mistakenly connects the positive and negative poles of the pins at the bottom of the capacitor body, the temperature inside the capacitor body will rise rapidly, thereby heating the electrolyte inside the capacitor body and continuously expanding to break through the pressure relief groove. At this time, the expanded and ejected high-pressure gas and liquid will be quickly rushed to the inside of the through groove and impact the billiard ball inside the whistle tube after being guided by the guide plate, and discharged from the whistle mouth, thereby generating a sound, thereby prompting the user.

[0016] 2. The present invention cooperates with each other through the protective ring, pneumatic box, guide plate and whistle tube. While prompting the user of the error, part of the high-pressure gas and liquid are guided by the guide plate into the interior of the slide groove to push the piston block to move, which will cause the push rod to push the positioning hook in the groove, so that the ring block can slide down quickly from the inside of the ring groove, thereby covering the periphery of the pressure relief groove, so that the gas-liquid injection position can be concentrated, so that the gas-liquid mixture can enter the interior of the whistle tube.

[0017] 3. The protective ring, pneumatic box, guide plate and whistle tube of the present invention cooperate with each other. When the piston block moves, the piston block will be separated from the exhaust pipe connecting the slide groove, so that the gas inside the pneumatic box will quickly enter the inside of the slide groove from the exhaust pipe, thereby increasing the gas content and pressure inside the through groove, thereby extending the time for the airflow to pass through the inside of the whistle tube, thereby extending the prompt time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of the present invention as a whole;

[0019] Figure 2 It is a structural schematic diagram of the capacitor body of the present invention;

[0020] Figure 3 It is a schematic diagram of the structure of the protective ring, pneumatic box, guide plate and whistle tube of the present invention;

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the protective ring, pneumatic box, guide plate and whistle pipe of the present invention;

[0022] Figure 5 It is a schematic diagram of the cross-sectional structure of the protection ring of the present invention;

[0023] Figure 6 It is a schematic diagram of the cross-sectional structure of the protection ring and the pneumatic box of the present invention;

[0024] Figure 7 It is a structural schematic diagram of the guide plate and the whistle pipe of the present invention.

[0025] In the figure:

[0026] 1. Capacitor body; 2. Pressure relief groove; 3. Bottom plate; 4. Connecting column;

[0027] 5. Protective ring; 51. Through groove; 52. Slide groove; 53. Ring groove; 54. Ring block; 55. Positioning hook; 56. Slot; 57. Piston block; 58. Ejector rod;

[0028] 6. Pneumatic box; 61. Inlet check valve; 62. Exhaust pipe;

[0029] 7. Guide plate;

[0030] 8. Whistle tube; 81. Whistle mouth; 82. Top cover; 83. Billiards. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0032] Reference Figure 1-Figure 7 As shown, the present invention provides a stable solid-state aluminum electrolytic capacitor, including a capacitor body 1, a protective ring 5 is arranged above the capacitor body 1, a pneumatic box 6 is installed above the protective ring 5, a through groove 51 is opened in the middle of the protective ring 5, a guide plate 7 is fixedly connected inside the through groove 51, a whistle pipe 8 is connected above the guide plate 7, sliding grooves 52 are opened on the inner walls of both sides of the through groove 51, a piston block 57 is slidably connected inside the sliding groove 52, and an annular groove 53 is opened below the through groove 51; an annular block 54 is embedded in the annular groove 53, the piston block 57 is used to release the annular block 54, and the guide plate 7 is used to guide the gas-liquid mixture during pressure relief; the piston block 57 is used to enclose the top of the capacitor body 1, the pneumatic box 6 is used to continuously inject airflow into the through groove 51, and the whistle pipe 8 is used to sound a prompt when the airflow and the gas-liquid mixture pass through.

[0033] In a further embodiment, the bottom end of the guide plate 7 is located at the upper end of the slide groove 52 , a push rod 58 is fixedly connected to one side of the piston block 57 , a clamping groove 56 is provided at the top of the annular groove 53 , and the clamping groove 56 is connected to the slide groove 52 .

[0034] In this embodiment, the cross section of the guide plate 7 is arc-shaped, so as to guide the airflow and concentrate it into the whistle tube 8.

[0035] In a further embodiment, a positioning hook 55 is fixedly connected to the top of the ring block 54 . The positioning hook 55 fits into the slot 56 . The positioning hook 55 is located on one side of a push rod 58 . The push rod 58 is used to squeeze the positioning hook 55 .

[0036] In this embodiment, the positioning hook 55 is made of soft plastic and can be deformed, so that the ring block 54 is no longer restricted and slides out of the ring groove 53 .

[0037] In a further embodiment, an inlet check valve 61 is provided above the pneumatic box 6, and an exhaust pipe 62 is provided below the pneumatic box 6. The exhaust pipe 62 is inserted into the interior of the protective ring 5. The exhaust pipe 62 is connected to the slide groove 52, and the piston block 57 is located at the connection between the exhaust pipe 62 and the slide groove 52.

[0038] In this embodiment, the interior of the pneumatic box 6 is initially filled with gas, so that when the piston block 57 no longer blocks the port of the exhaust pipe 62, it will be ejected quickly.

[0039] In a further embodiment, a whistle opening 81 is opened on one side of the whistle tube 8, a top cover 82 is fixedly connected to the top of the whistle tube 8, and a billiard ball 83 is connected to the bottom of the top cover 82 via a connecting rope.

[0040] In this embodiment, the top cover 82 allows the airflow to be discharged only from the whistle port 81, thereby diverting the airflow so that part of the airflow impacts the billiard ball 83, causing the billiard ball 83 to shake and thereby impact the inner wall of the whistle tube 8 to produce sound.

[0041] In a further embodiment, a bottom plate 3 is installed below the capacitor body 1 , and fixedly connected connecting columns 4 are evenly distributed around the periphery of the bottom plate 3 , and the top ends of the connecting columns 4 are fixedly connected to the periphery of the protective ring 5 .

[0042] In this embodiment, the bottom plate 3 is provided with grooves for the pins of the capacitor body 1 to pass through, and the bottom plate 3 and the connecting column 4 are used for the protective ring 5 etc. to be installed on the periphery of the capacitor body 1 .

[0043] In a further embodiment, a pressure relief groove 2 is provided above the capacitor body 1, and the pressure relief groove 2 is used for pressure relief.

[0044] In this embodiment, the capacitor body 1 is a stable solid aluminum electrolytic capacitor in the prior art.

[0045] The working principle of the present invention is as follows:

[0046] When the user mistakenly connects the positive and negative electrodes of the pins at the bottom of the capacitor body 1 incorrectly, the temperature inside the capacitor body 1 will rise rapidly, thereby heating the electrolyte inside the capacitor body 1 and continuously expanding to break through the pressure relief groove 2. At this time, the expanded and ejected high-pressure gas and liquid will quickly rush to the inside of the through groove 51 and impact the billiard ball 83 inside the whistle tube 8 after being guided by the guide plate 7, and be discharged from the whistle mouth 81, thereby generating a sound, thereby prompting the user;

[0047] At the same time, part of the high-pressure gas and liquid is guided by the guide plate 7 into the interior of the slide groove 52, thereby pushing the piston block 57 to move, thereby allowing the push rod 58 to push the positioning hook 55 in the groove 56, so that the ring block 54 slides down quickly from the inside of the ring groove 53, thereby covering the periphery of the pressure relief groove 2, so that the gas-liquid injection position can be concentrated, so that the gas-liquid mixture can enter the interior of the whistle tube 8;

[0048] When the piston block 57 moves, the piston block 57 will be separated from the exhaust pipe 62 connected to the slide groove 52, so that the gas inside the pneumatic box 6 will quickly enter the inside of the slide groove 52 from the exhaust pipe 62, thereby increasing the gas content and pressure inside the through groove 51, thereby extending the time for the airflow to pass through the whistle tube 8, thereby extending the prompt time.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stable solid aluminum electrolytic capacitor, comprising a capacitor body (1), characterized in that: The invention comprises a capacitor body (1), a protective ring (5) is arranged above the capacitor body (1), a pneumatic box (6) is installed above the protective ring (5), a through groove (51) is provided in the middle of the protective ring (5), a guide plate (7) is fixedly connected inside the through groove (51), a whistle pipe (8) is connected above the guide plate (7), sliding grooves (52) are provided on the inner walls of both sides of the through groove (51), and a piston block (52) is slidably connected inside the sliding groove (52). 7), an annular groove (53) is provided below the through groove (51); an annular block (54) is embedded inside the annular groove (53); the piston block (57) is used to release the annular block (54); the guide plate (7) is used to guide the gas-liquid mixture during pressure relief; the piston block (57) is used to enclose the top of the capacitor body (1); the pneumatic box (6) is used to continuously inject airflow into the through groove (51); and the whistle tube (8) is used to emit a sound prompt when the airflow and the gas-liquid mixture pass through.

2. A stable solid aluminum electrolytic capacitor according to claim 1, characterized in that: The bottom end of the guide plate (7) is located at the upper end of the slide groove (52), one side of the piston block (57) is fixedly connected with a push rod (58), and the top end of the annular groove (53) is provided with a clamping groove (56), and the clamping groove (56) is connected to the slide groove (52).

3. A stable solid aluminum electrolytic capacitor according to claim 1, characterized in that: A positioning hook (55) is fixedly connected to the upper side of the ring block (54), the positioning hook (55) fits into the slot (56), the positioning hook (55) is located on one side of a push rod (58), and the push rod (58) is used to squeeze the positioning hook (55).

4. A stable solid aluminum electrolytic capacitor according to claim 1, characterized in that: An inlet check valve (61) is arranged above the pneumatic box (6), and an exhaust pipe (62) is arranged below the pneumatic box (6). The exhaust pipe (62) is inserted into the interior of the protective ring (5), and the exhaust pipe (62) is connected to the slide groove (52). The piston block (57) is located at the connection between the exhaust pipe (62) and the slide groove (52).

5. The stable solid aluminum electrolytic capacitor according to claim 1, characterized in that: A whistle opening (81) is provided on one side of the whistle pipe (8), a top cover (82) is fixedly connected to the top of the whistle pipe (8), and a billiard ball (83) is connected to the bottom of the top cover (82) via a connecting rope.

6. The stable solid aluminum electrolytic capacitor according to claim 1, characterized in that: A bottom plate (3) is installed below the capacitor body (1), and fixedly connected connecting columns (4) are evenly distributed around the periphery of the bottom plate (3), and the top ends of the connecting columns (4) are fixedly connected to the periphery of the protective ring (5).

7. The stable solid aluminum electrolytic capacitor according to claim 1, characterized in that: A pressure relief groove (2) is provided above the capacitor body (1), and the pressure relief groove (2) is used for pressure relief.

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