Capacitor without lead frame

Abstract

The utility model discloses a capacitor without a lead frame, which comprises a capacitor core and a shell, the capacitor core is arranged in the shell, one side of the capacitor core is provided with an anode lead, and the other side of the capacitor core is provided with a cathode end. According to the utility model, through the anode leading-out terminal and the cathode leading-out terminal, the terminal leading-out path is shortened, and the high-frequency characteristic of the capacitor is improved. And meanwhile, additional terminal connection is reduced, internal connection resistance of the capacitor is reduced, and the raw material cost of the product is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of capacitors, and in particular relates to a capacitor without a lead frame. Background Art

[0002] Traditional capacitor packaging uses metal lead frames to lead out terminals, such as Figure 2 As shown. The use of additional metal terminals not only incurs additional costs, but also causes problems such as open circuits and increased contact resistance caused by unstable bonding between the internal and external segments, so a lead frame-less capacitor is needed. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a leadless frame capacitor, which can solve the problems of open circuit and increased contact resistance caused by unstable internal and external bonding of the capacitor.

[0004] The utility model is realized through the following technical solutions.

[0005] The utility model provides a leadless frame capacitor, comprising a capacitor core and a shell. The capacitor core is arranged in the shell, an anode lead is arranged on one side of the capacitor core, and a cathode terminal is arranged on the other side of the capacitor core.

[0006] Preferably, an anode external terminal and a cathode external terminal are provided on the housing.

[0007] Preferably, the anode lead is connected via an anode lead-out terminal and an anode external terminal.

[0008] Preferably, the cathode terminal is connected via a cathode lead-out terminal and a cathode external terminal.

[0009] Preferably, the anode lead is connected to the anode lead-out terminal by welding or bonding.

[0010] Preferably, the cathode terminal is connected to the cathode lead-out terminal by bonding.

[0011] Preferably, the anode external terminal and the cathode external terminal are led out by welding or bonding.

[0012] The beneficial effects of the utility model are:

[0013] The utility model shortens the terminal lead-out path through the anode lead-out terminal and the cathode lead-out terminal, improves the high-frequency characteristics of the capacitor, reduces the extra terminal connection, reduces the internal connection resistance of the capacitor, and reduces the raw material cost of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the structure of a capacitor using a metal lead frame;

[0016] In the figure: 1-capacitor core, 2-housing, 3-anode lead, 4-cathode terminal, 5-anode outer terminal, 6-cathode outer terminal, 7-anode lead terminal, 8-cathode lead terminal, 9-lead frame. DETAILED DESCRIPTION

[0017] The technical solution of the utility model is further described below, but the scope of protection required is not limited to the description.

[0018] Example:

[0019] like Figure 1 As shown, a leadless frame capacitor includes a capacitor core 1 and a shell 2, wherein the capacitor core 1 is arranged in the shell 2, an anode lead 3 is arranged on one side of the capacitor core 1, and a cathode terminal 4 is arranged on the other side of the capacitor core 1.

[0020] The housing 2 is provided with an anode external terminal 5 and a cathode external terminal 6 .

[0021] The anode lead 3 is connected to the anode external terminal 5 via the anode lead-out terminal 7 .

[0022] The cathode terminal 4 is connected to the cathode external terminal 6 via the cathode lead-out terminal 8 .

[0023] The anode lead wire 3 is connected to the anode lead-out terminal 7 by welding or bonding.

[0024] The cathode terminal 4 is connected to the cathode lead-out terminal 8 by bonding with a conductive material.

[0025] The anode external terminal 5 and the cathode external terminal 6 are led out by welding or bonding.

[0026] A method for manufacturing a leadless frame capacitor comprises the following steps:

[0027] After the cathode terminal 4 is manufactured, the anode lead 2 on the capacitor core 1 is connected to the anode lead-out terminal 7 by welding or bonding, and the cathode lead-out terminal 8 is connected to the cathode terminal 4 of the capacitor core 1 by bonding with a conductive material; then it is packaged by the outer shell 2, and after packaging, the anode external terminal 7 and the cathode external terminal 8 are led out by welding or bonding.

Claims

1. A lead frameless capacitor, characterized in that: It comprises a capacitor core (1) and a shell (2), wherein the capacitor core (1) is arranged in the shell (2), an anode lead (3) is arranged on one side of the capacitor core (1), and a cathode terminal (4) is arranged on the other side of the capacitor core (1); The housing (2) is provided with an anode external terminal (5) and a cathode external terminal (6); The anode lead (3) is connected to the anode external terminal (5) via the anode lead-out terminal (7); The cathode terminal (4) is connected to the cathode external terminal (6) via the cathode lead-out terminal (8); The anode lead wire (3) is connected to the anode lead terminal (7) by welding or bonding; and the cathode terminal (4) is connected to the cathode lead terminal (8) by bonding.

2. A lead frameless capacitor according to claim 1, characterized in that: The anode external terminal (5) and the cathode external terminal (6) are led out by welding or bonding.

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