Capacitor base and capacitor
By adding insulating gaskets between the positive electrode mount of the capacitor and the base and connecting through brazing, the problem of existing capacitors being prone to cracking under special operating conditions is solved, and the connection stability and service life are improved.
Patent Information
- Application Number
- CN202420252141.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-02
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-02-02
AI Technical Summary
The existing capacitors are easily cracked under special working conditions when welding through glass fusion welding, affecting the connection stability between the electric sheet and the base, destroying the sealing, and shortening the service life of the capacitor.
An insulating gasket is added between the positive electrode mount and the base of the capacitor, and the positive electrode mount and ground mount are welded to the base by brazing to improve connection stability.
The positive electrode mount and base are isolated by insulating gaskets to prevent current from flowing to the base, which improves connection stability, prevents cracking of the connection position and extends the service life of the capacitor.
Smart Images
Figure CN222762799U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electronic component manufacturing, in particular to a capacitor base and a capacitor. Background Art
[0002] A capacitor is a commonly used electronic component. An existing capacitor includes at least a base, a positive electrode plate and a negative electrode plate. In order to ensure the stability of the connection between the plate and the base, the prior art usually uses glass welding to weld the positive electrode plate and the negative electrode plate to the base. However, the strength of glass itself is poor and the brittleness of glass is high. Therefore, the position where the capacitor is welded by glass welding is prone to cracking under special working conditions (bumps, vibrations, etc.). On the one hand, it affects the stability of the connection between the plate and the base. On the other hand, it also destroys the sealing of the capacitor, which is not conducive to the long-term stable use of the capacitor and greatly shortens the life of the capacitor and the electrical appliances using the capacitor.
[0003] Therefore, there is an urgent need for a capacitor base and a capacitor with a stable connection between the base and the electric sheet. Utility Model Content
[0004] The purpose of the utility model is to provide a capacitor base. In order to solve the problems existing in the above-mentioned prior art, an insulating gasket is added between the positive electrode mounting seat and the base, and the positive electrode mounting seat and the grounding mounting seat are welded to the base by brazing, thereby improving the connection stability between the base and the positive electrode mounting seat, and between the base and the grounding mounting seat.
[0005] To achieve the above purpose, the utility model provides the following solutions:
[0006] The utility model provides a capacitor base, comprising:
[0007] A base, wherein a first through hole and a second through hole penetrating the base in a thickness direction are respectively formed at a first end and a second through hole at a second end of the base;
[0008] A grounding mounting seat, the grounding mounting seat comprising an extension portion 1, the grounding mounting seat is mounted on the upper side of the first end of the base, the extension portion 1 passes through the first through hole and extends to the lower side of the base, and the grounding mounting seat is brazed to the base;
[0009] An insulating gasket, the insulating gasket being brazed and connected to the upper side of the second end of the base;
[0010] A positive electrode mounting seat, the positive electrode mounting seat is mounted on the upper side of the second end of the base through the insulating gasket, the positive electrode mounting seat includes an extension portion 2, the extension portion 2 extends through the second through hole to the lower side of the base, and the positive electrode mounting seat is brazed to the insulating gasket.
[0011] Preferably, the insulating gasket is a ceramic gasket, the lower surface of the ceramic gasket is connected to the base by brazing, and the upper surface of the ceramic gasket is connected to the positive electrode mounting seat by brazing.
[0012] Preferably, a second groove is formed on the upper side of the second through hole, and the ceramic gasket is installed in the second groove.
[0013] Preferably, the portion of the positive electrode mounting seat located on the upper side of the base is bent in a direction away from the first end to form a second seat body, the second seat body is connected to the second extension portion, and the upper surface of the ceramic gasket is brazed to the second seat body.
[0014] Preferably, a portion of the grounding mounting seat located on the upper side of the base is bent in a direction away from the second end to form a seat body 1, and the seat body 1 is connected to the extension portion 1.
[0015] Preferably, a groove 1 is formed on the upper side of the first through hole, and a portion of the seat body 1 overlaps with the groove 1 in the up and down directions.
[0016] Preferably, a sealing cover is further included, wherein the sealing cover is sealingly connected to the base to form a sealed space between the sealing cover and the base.
[0017] Preferably, the base comprises:
[0018] substrate;
[0019] A boss seat disposed on the upper side of the substrate, used for arranging the grounding mounting seat and the positive electrode mounting seat;
[0020] An annular protrusion is arranged on the upper side of the base plate, and the annular protrusion is used to be engaged with the sealing cover body;
[0021] The annular protrusion surrounds the periphery of the boss seat, and the annular protrusion is spaced apart from the outer edge of the substrate.
[0022] Preferably, a first filling groove is opened at the lower side of the first through hole, and a second filling groove is opened at the lower side of the second through hole. The first filling groove is used to fill solder, and the second filling groove is filled with an insulating sealant.
[0023] The present application also provides a capacitor, comprising a capacitor base and a sealing cover body snap-fitted and connected to the capacitor base, wherein electrical components are arranged on the capacitor base, and the capacitor base is any one of the capacitor bases described above.
[0024] Compared with the prior art, the utility model has achieved the following technical effects:
[0025] The capacitor base provided by the utility model welds the grounding mounting seat and the positive electrode mounting seat in the through hole of the base by brazing, and an insulating gasket is brazed between the positive electrode mounting seat and the base. The insulating gasket can isolate the positive electrode mounting seat from the base, thereby preventing the current on the positive electrode mounting seat from flowing to the base. Furthermore, the brazing has extremely strong welding stability, thereby ensuring the stability of the connection between the grounding mounting seat and the base, and between the positive electrode mounting seat and the base, avoiding the problem of cracking at the connection position between the grounding mounting seat and the base, and the connection position between the positive electrode mounting seat and the base, and avoiding the problem that the capacitor base is easily damaged under special working conditions such as bumps or vibrations, thereby ensuring the stability of the capacitor base and the capacitor using the capacitor base during subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0027] Figure 1 This is a front view of the capacitor base in the utility model;
[0028] Figure 2 for Figure 1 A magnified view of position A in the middle;
[0029] Figure 3 for Figure 1 A top view of
[0030] Figure 4 for Figure 1 Bottom view of
[0031] Figure 5 for Figure 1 Bottom view after removing the ground mount and positive mount;
[0032] Figure 6 A schematic diagram of a capacitor in the utility model;
[0033] Among them, 1. base; 2. first through hole; 3. second through hole; 4. extension part 1; 5. insulating gasket; 6. extension part 2; 7. groove 2; 8. seat body 2; 9. seat body 1; 10. groove 1; 11. substrate; 12. boss seat; 13. annular protrusion; 14. first filling groove; 15. second filling groove; 16. electrical component. DETAILED DESCRIPTION
[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0035] The utility model aims to provide a capacitor base, so as to solve the problem of short service life of the capacitor in the prior art.
[0036] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0037] like Figure 1-5 As shown, the capacitor base provided by the embodiment of the utility model includes a base 1, a grounding mounting seat, an insulating gasket 5 and a positive electrode mounting seat, wherein the first end and the second end of the base 1 are respectively provided with a first through hole 2 and a second through hole 3 penetrating the base 1 in the thickness direction, the grounding mounting seat includes an extension portion 14, the grounding mounting seat is installed on the upper side of the first end of the base 1, the extension portion 14 extends to the lower side of the base 1 through the first through hole 2, the grounding mounting seat is brazed to the base 1, the insulating gasket 2 is brazed to the upper side of the second end of the base 1, the positive electrode mounting seat is installed on the upper side of the second end of the base 1 through the insulating gasket 5, the positive electrode mounting seat includes an extension portion 26, the extension portion 26 extends to the lower side of the base 1 through the second through hole 3, the positive electrode mounting seat is brazed to the insulating gasket 5, and an opening for the extension portion 26 to pass through is opened on the insulating gasket 5. The extension part 14 of the positive electrode mounting seat extends out of the base 1 from the first through hole 2, so that the current can flow into the capacitor base from the extension part 14, and the extension part 26 of the grounding mounting seat extends out of the base 1 from the second through hole 3, so that the capacitor base can be connected to the ground. Among them, the positive electrode mounting seat is installed on the base 1 through the insulating gasket 5, which realizes the insulated installation of the positive electrode mounting seat and the base 1, avoids the current flowing into the capacitor base from the extension part 14 to flow into the base 1, and improves the safety of the capacitor base during use. Furthermore, the grounding mounting seat and the positive electrode mounting seat are respectively welded to the base 1 in the form of brazing connection, which improves the stability of the connection between the grounding mounting seat and the base 1, and between the positive electrode mounting seat and the base 1, and avoids the problem of cracking of the connection position between the various structures of the capacitor base during subsequent use due to external factors such as vibration or bumping, thereby improving the service life of the capacitor base and the capacitor using the capacitor base.
[0038] Furthermore, the insulating gasket 5 is preferably a ceramic gasket, the lower surface of the ceramic gasket is brazed to the base 1, and the upper surface of the ceramic gasket is brazed to the positive electrode mounting seat. The ceramic gasket can isolate the current while having strong stability and strength. Furthermore, the positive electrode mounting seat, the ceramic gasket and the base 1 are connected together by brazing, which improves the stability of the connection between the three, thereby enabling the capacitor ceramic base to work stably.
[0039] Those skilled in the art can understand that the insulating gasket in the present application can also be a nano-composite insulating material, a mica sheet, or other sheet-like structure with strong stability and capable of providing an insulating effect, which is not specifically limited here.
[0040] Preferably, a groove 27 is provided on the upper side of the second through hole 3, and the ceramic gasket is installed in the groove 27. The portion of the positive electrode mounting seat located on the upper side of the base 1 is bent in a direction away from the first end to form a seat body 28, and the seat body 28 is connected to the extension part 26, and the upper surface of the ceramic gasket is brazed to the seat body 28. The movement of the ceramic gasket in the horizontal direction can be limited by the groove 27. When installing, the ceramic gasket is placed in the groove 27 to directly align the opening on the insulating gasket 5 with the second through hole 3, so that the extension part 26 can pass through, thereby improving the convenience of capacitor base production. In addition, the opening of the groove 27 enables the height of the positive electrode mounting seat to be flush with the upper surface of the base 1, which is convenient for the subsequent installation of the electrical components 16.
[0041] More preferably, the portion of the grounding mounting seat located on the upper side of the base 1 is bent in a direction away from the second end to form a seat body 9, and the seat body 9 is connected to the extension part 4. The seat body 19 and the seat body 2 8 cooperate with each other to provide an installation position for the installation of the electrical component 16, so that the electrical component 16 can be directly installed on the capacitor base.
[0042] As a preferred method, a groove 10 is provided on the upper side of the first through hole 2, and a portion of the seat body 9 overlaps with the groove 10 in the vertical direction. During the welding process, the brazing solder can be wrapped around the portion of the extension part 4 located in the groove 10 through the groove 10, thereby increasing the amount of solder used at the connection position between the extension part 4 and the first through hole 2, thereby improving the connection strength between the grounding mounting seat and the base 1. At the same time, a portion of the seat body 9 is arranged outside the groove 10 away from the positive electrode mounting seat, so that the height of the grounding mounting seat can be flush with the upper surface of the base 1, which is convenient for the subsequent installation of the electrical components 16.
[0043] Furthermore, a sealing cover body (not shown in the figure) is further included, which is sealed and connected to the base 1 to form a sealed space between the sealing cover body and the base 1. In practical applications, the sealed space can be evacuated or filled with an inert protective gas, thereby providing a more favorable working environment for the electrical component 16.
[0044] See also Figure 1-2 The base 1 of the capacitor base includes: a substrate 11, a boss seat 12 and an annular protrusion 13 are arranged on the upper side of the substrate 11, the annular protrusion 13 surrounds the outer periphery of the boss seat 12, and the annular protrusion 13 is spaced apart from the outer edge of the substrate 11. In actual use, the positive electrode mounting seat and the grounding mounting seat are both mounted on the boss seat 12, and a slot matching the annular protrusion 13 is arranged on the sealing cover body, and the annular protrusion 13 is engaged with the sealing cover body, thereby forming a sealed space for accommodating the electrical component 16.
[0045] Furthermore, a first filling groove 14 is opened on the lower side of the first through hole 2, and the first filling groove 14 is filled with brazing solder. In addition, the first filling groove 14 can also be used to fill other forms of solder to further improve the connection strength and sealing between the extension part 4 and the base 1; a second filling groove 15 is opened on the lower side of the second through hole 3, and the second filling groove 15 is filled with an insulating seal. The insulating seal has an interference fit with the gap between the second through hole 3 and the second filling groove 15, and the insulating seal can further improve the sealing between the extension part 2 6 and the base 1.
[0046] Preferably, the insulating seal is a rubber plug. It is understandable that the insulating seal may also be a known insulating material such as resin.
[0047] The utility model also provides a capacitor, which includes the above capacitor base and a sealing cover body connected to the capacitor base in a buckled manner, and the capacitor base is provided with an electrical component 16. The capacitor disclosed in the present application is made of the above capacitor base with a longer service life, and the base 1 of the capacitor, the grounding mounting seat and the positive electrode mounting seat are firmly connected, and it is not easy to generate gaps during use, thereby achieving the technical effect of increasing the service life of the capacitor.
[0048] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of the present invention. At the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.
Claims
1. A capacitor base, characterized in that: include: A base (1), wherein a first through hole (2) and a second through hole (3) are respectively formed at the first end and the second end of the base (1) and penetrate the base (1) in the thickness direction; A grounding mounting base, the grounding mounting base comprising an extension portion 1 (4), the grounding mounting base being mounted on the upper side of the first end of the base (1), the extension portion 1 (4) extending through the first through hole (2) to the lower side of the base (1), the grounding mounting base being connected to the base (1) by brazing; An insulating gasket (5), the insulating gasket (5) being soldered to the upper side of the second end of the base (1); A positive electrode mounting seat, the positive electrode mounting seat is mounted on the upper side of the second end of the base (1) through the insulating gasket (5), the positive electrode mounting seat comprises a second extension portion (6), the second extension portion (6) passes through the second through hole (3) and extends to the lower side of the base (1), and the positive electrode mounting seat is connected to the insulating gasket (5) by brazing.
2. The capacitor base according to claim 1, characterized in that: The insulating gasket (5) is a ceramic gasket, the lower surface of the ceramic gasket is connected to the base (1) by brazing, and the upper surface of the ceramic gasket is connected to the positive electrode mounting seat by brazing.
3. The capacitor base according to claim 2, characterized in that: A second groove (7) is provided on the upper side of the second through hole (3), and the ceramic gasket is installed in the second groove (7).
4. The capacitor base according to claim 3, characterized in that: The portion of the positive electrode mounting seat located on the upper side of the base (1) is bent in a direction away from the first end to form a second seat body (8), the second seat body (8) is connected to the second extension portion (6), and the upper surface of the ceramic gasket is brazed to the second seat body (8).
5. The capacitor base according to any one of claims 1 to 4, characterized in that: The portion of the grounding mounting seat located on the upper side of the base (1) is bent in a direction away from the second end to form a seat body (9), and the seat body (9) is connected to the extension portion (4).
6. The capacitor base according to claim 5, characterized in that: A groove one (10) is provided on the upper side of the first through hole (2), and a portion of the seat body one (9) and the groove one (10) overlap each other in the vertical direction.
7. The capacitor base according to claim 1, characterized in that: It also comprises a sealing cover body, which is sealingly connected to the base (1) to form a sealed space between the sealing cover body and the base (1).
8. The capacitor base according to claim 7, characterized in that: The base (1) comprises: base(11); A boss seat (12) disposed on the upper side of the substrate (11) and used for arranging the grounding mounting seat and the positive electrode mounting seat; an annular protrusion (13) disposed on the upper side of the base plate (11), the annular protrusion (13) being used for snapping into engagement with the sealing cover body; The annular protrusion (13) surrounds the periphery of the boss seat (12), and the annular protrusion (13) is spaced apart from the outer edge of the base plate (11).
9. The capacitor base according to claim 1, characterized in that: A first filling groove (14) is provided at the lower side of the first through hole (2), and a second filling groove (15) is provided at the lower side of the second through hole (3); the first filling groove (14) is used to fill solder, and the second filling groove (15) is filled with an insulating sealing member.
10. A capacitor, comprising a capacitor base and a sealing cover body snap-fitted and connected to the capacitor base, wherein an electrical component (16) is arranged on the capacitor base, characterized in that: The capacitor base is the capacitor base according to any one of claims 1 to 9.