ESD (Electro-Static Discharge) electrostatic protection device
By integrating TVS and LC diodes into a single component A and then integrating it into an ESD protection device, the problems of cumbersome surface mount technology and long production cycles in existing technologies are solved, achieving a highly efficient production process.
Patent Information
- Application Number
- CN202423296731.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The surface mount technology (SMT) process for existing ESD protection devices is cumbersome and has a long production cycle.
The TVS and LC diodes are integrated into a single component A, and the two A's are integrated into an ESD protection device, requiring only one surface mount application during use.
It saves on surface mount technology (SMT) processes, shortens production cycles, and increases efficiency.
Smart Images
Figure CN223666690U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of ESD electrostatic protection devices, specifically a kind of ESD electrostatic protection devices. BACKGROUND
[0002] ESD electrostatic protection device is realized by four diode chips connection, needs to be pasted four times when using, process is complicated, production cycle is long. INVENTION CONTENTS
[0003] To solve the defects of the prior art, the utility model provides a kind of ESD electrostatic protection devices, the utility model integrates TVS and LC into a component A, then two A are integrated into a ESD electrostatic protection device, only need to be pasted once when using, save pasting process flow, production cycle is short, high efficiency.
[0004] To realize the above technical purpose, the utility model adopts the following technical scheme: a kind of ESD electrostatic protection devices, including two integrated components A, the integrated component A includes one overvoltage protection component, one capacity-reducing chip, intermediate metal connecting piece, A1 end metal connecting piece and A2 end metal connecting piece;One end of the intermediate metal connecting piece is connected to the negative pole one of the overvoltage protection component, the other end is connected to the positive pole two of the capacity-reducing chip, one end of the A1 end metal connecting piece is connected to the positive pole one of the overvoltage protection component, the other end is as the A1 pin of the integrated component A, one end of the A2 end metal connecting piece is connected to the negative pole two of the capacity-reducing chip, the other end is as the A2 pin of the integrated component A.
[0005] One overvoltage protection component, the capacity-reducing chip bottom between the fixed plate is provided with, the intermediate metal connecting piece is sunk in the middle portion and is fastened to fixed plate using bolt;Two ends of the intermediate metal connecting piece are connected with the negative pole one and the positive pole two using bolt respectively;The A1 end metal connecting piece is connected with the positive pole one using bolt, and the A2 end metal connecting piece is connected with the positive pole one and negative pole two using bolt.
[0006] Two ends of the intermediate metal connecting piece are respectively provided with first bending section, and two first bending sections are respectively hooked with the negative pole one and the positive pole two with 90 ° foot;The end of the A1 end metal connecting piece is provided with second bending section, and the second bending section is hooked with the positive pole one with 90 ° foot;The end of the A2 end metal connecting piece is provided with third bending section, and the third bending section is hooked with the negative pole two with 90 ° foot.
[0007] The first end metal connecting piece comprises a leading-out pin and two connecting pins, the two connecting pins are bolted to the A1 pin of the first integrated element A and the A1 pin of the second integrated element A respectively, and the leading-out pin serves as the first end of the ESD electrostatic protection device; the second end metal connecting piece is symmetrically arranged with the first end metal connecting piece, the two connecting pins of the second end metal connecting piece are bolted to the A2 pin of the first integrated element A and the A2 pin of the second integrated element A respectively, and the leading-out pin thereof serves as the second end of the ESD electrostatic protection device.
[0008] The clamping piece comprises a deep hole and a shallow groove formed in the integrated element A, a connecting rod and two embedding rods arranged at two ends of the connecting rod, the two embedding rods are embedded into the deep holes of the two integrated elements A respectively, and the connecting rod is embedded into the shallow grooves of the two integrated elements A.
[0009] The A1 pin of the first integrated element A and the A1 pin of the second integrated element A are connected to serve as the first end of the ESD electrostatic protection device, and the A2 pin of the first integrated element A and the A2 pin of the second integrated element A are connected to serve as the second end of the ESD electrostatic protection device.
[0010] The overvoltage protection element is a TVS diode, and the capacity-reducing chip adopts an LC diode.
[0011] In conclusion, the utility model has the following technical effects:
[0012] The utility model integrates a TVS and an LC into an element A, and then integrates two A into an ESD electrostatic protection device, so that the device can be pasted only once, the pasting process is saved, the production cycle is short, and the efficiency is high. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 is an internal schematic view of the integrated element A;
[0014] Figure 2 of Figure 1 is an external schematic view of the integrated element A;
[0015] Figure 3 is a schematic view of an ESD electrostatic protection device. DETAILED DESCRIPTION
[0016] The utility model will be further described in detail below with reference to the drawings.
[0017] The specific embodiments are merely illustrative of the present application, and are not intended to limit the present application, and those skilled in the art can make modifications to the embodiments without creative contribution after reading the specification, as long as the modifications are within the scope of the claims of the present application.
[0018] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0019] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.
[0020] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0021] In the present application, unless otherwise specifically defined and limited, the first feature "on" or "under" the second feature can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.
[0022] Embodiment:
[0023] Figure 1 is the internal schematic diagram of the integrated component A, Figure 2 Figure 1 is the external schematic diagram of the integrated component A; Figure 3 is the schematic diagram of the ESD static protection device, comprising two integrated components A, the integrated component A comprising an overvoltage protection component 1, a capacity reduction chip 2, an intermediate metal connecting piece 4, an A1 end metal connecting piece 3 and an A2 end metal connecting piece 9; one end of the intermediate metal connecting piece 4 is connected to a negative pole one 12 of the overvoltage protection component 1, and the other end is connected to a positive pole two 21 of the capacity reduction chip 2; one end of the A1 end metal connecting piece 3 is connected to a positive pole one 11 of the overvoltage protection component 1, and the other end is used as an A1 pin of the integrated component A; one end of the A2 end metal connecting piece 9 is connected to a negative pole two 22 of the capacity reduction chip 2, and the other end is used as an A2 pin of the integrated component A; the A1 pin of the first integrated component A is connected to the A2 pin of the second integrated component A as a first end of the ESD static protection device, and the A2 pin of the first integrated component A is connected to the A1 pin of the second integrated component A as a second end of the ESD static protection device.
[0024] The overvoltage protection component is a TVS diode, and the capacity reduction chip is an LC diode. In the embodiment, the TVS diode 1 is arranged to absorb static electricity, and the LC diode 2 is arranged to be used for high-speed signal transmission, so as to prevent signal loss, and especially prevent high-frequency signals from being absorbed by a capacitor, thereby realizing ESD static protection.
[0025] The utility model discloses an overvoltage protection component 1, a capacity reduction chip 2 are made into integrated component A, make into a whole, dispense with the need to patch 2 times' technology, the utility model further integrates two A into an ESD static protection device shown in the drawing, which is a patching process of four times, and finally only needs to be patched once, saves the technology, and is high in production efficiency. Figure 3
[0026] The bottom between the overvoltage protection component 1 and the capacity reduction chip 2 is provided with the fixing plate 10, the middle part of the intermediate metal connecting piece 4 is fastened to the fixing plate 10 by using the bolt 5, the two ends of the intermediate metal connecting piece 4 are connected to the negative pole one 12 and the positive pole two 21 by using the bolt 5 respectively, the A1 end metal connecting piece 3 is connected to the positive pole one 11 by using the bolt 5, and the A2 end metal connecting piece 9 is connected to the negative pole two 22 by using the bolt 5.
[0027] The utility model fastens the middle part of the intermediate metal connecting piece 4 to the fixing plate 10, can improve the connection tightness between the overvoltage protection component 1 and the capacity reduction chip 2, and the utility model connects conveniently and quickly by using the bolt 5. The connection mode can also be clamping, welding such as eutectic welding and the like.
[0028] The two ends of the intermediate metal connecting piece 4 are respectively provided with first bending sections 41, and the two first bending sections 41 are respectively hooked to the negative electrode one 12 and the positive electrode two 21 in the form of 90° feet; the end of the A1 end metal connecting piece 3 is provided with a second bending section 31, and the second bending section 31 is hooked to the positive electrode one 11 in the form of a 90° foot; the end of the A2 end metal connecting piece 9 is provided with a third bending section, and the third bending section is hooked to the negative electrode two 22 in the form of a 90° foot.
[0029] The 90° hook feet arranged at the positive and negative electrodes of the diode can strengthen the connection tightness with the positive and negative electrodes and prevent poor contact.
[0030] The first end metal connecting piece 6 comprises one leading foot 61 and two connecting feet 62, the two connecting feet 62 are connected to the A1 pin of the first integrated element A and the A2 pin of the second integrated element A by bolts 5 respectively, and the leading foot 61 serves as the first end of the ESD electrostatic protection device; the second end metal connecting piece 7 is symmetrically arranged with the first end metal connecting piece 6, the two connecting feet of the second end metal connecting piece 7 are connected to the A2 pin of the first integrated element A and the A1 pin of the second integrated element A by bolts 5 respectively, and the leading foot thereof serves as the second end of the ESD electrostatic protection device.
[0031] The two A integrated elements are connected by the metal connecting pieces at the two ends and serve as the first end and the second end of the ESD electrostatic protection device respectively, so that the two A integrated elements are conveniently connected to a circuit.
[0032] The clamping piece comprises a deep hole 81 and a shallow groove 82 formed in the integrated element A, a connecting rod 84 and an embedding rod 83 arranged at the two ends of the connecting rod 84, the two embedding rods 83 are embedded into the deep holes 81 of the two integrated elements A respectively, and the connecting rod 84 is embedded into the shallow grooves 82 of the two integrated elements A.
[0033] The clamping piece 8 is used to strengthen the strength between the two A integrated elements, and the metal connecting pieces at the two ends are used to ensure that the two A integrated elements are not separated from each other and that the metal connecting pieces at the two ends are in good contact.
[0034] The above description is only a preferred embodiment of the utility model, and does not limit the utility model in any form, and any simple modification, equivalent change and modification made according to the technical essence of the utility model to the above embodiment are within the scope of the technical scheme of the utility model.
Claims
1. An ESD electrostatic discharge protection device, characterized in that: The device includes two integrated components A, each of which includes an overvoltage protection element (1), a derating chip (2), an intermediate metal connector (4), an A1-end metal connector (3), and an A2-end metal connector (9). One end of the intermediate metal connector (4) is connected to the negative electrode (12) of the overvoltage protection element (1), and the other end is connected to the positive electrode (21) of the derating chip (2). One end of the A1-end metal connector (3) is connected to the positive electrode (11) of the overvoltage protection element (1), and the other end serves as the A1 pin of the integrated component A. One end of the A2-end metal connector (9) is connected to the negative electrode (22) of the derating chip (2), and the other end serves as the A2 pin of the integrated component A.
2. The ESD electrostatic discharge protection device according to claim 1, characterized in that: A fixing plate (10) is provided between the bottom of the overvoltage protection element (1) and the derating chip (2). The middle metal connector (4) is lowered and then fastened to the fixing plate (10) with bolts (5). The two ends of the middle metal connector (4) are respectively connected to the negative electrode (12) and the positive electrode (21) with bolts (5). The metal connector (3) at the A1 end is connected to the positive electrode (11) with bolts (5), and the metal connector (9) at the A2 end is connected to the negative electrode (22) with bolts (5).
3. The ESD electrostatic protection device according to claim 1, characterized in that: The two ends of the intermediate metal connector (4) are respectively provided with a first bending section (41), and the two first bending sections (41) hook the negative electrode one (12) and the positive electrode two (21) at 90° angles respectively; the end of the metal connector (3) at the A1 end is provided with a second bending section (31), and the second bending section (31) hooks the positive electrode one (11) at 90° angles; the end of the metal connector (9) at the A2 end is provided with a third bending section, and the third bending section hooks the negative electrode two (22) at 90° angles.
4. The ESD electrostatic protection device according to claim 1, characterized in that: It also includes a clamping component, which includes a deep hole (81) and a shallow groove (82) formed in the integrated element A, a connecting rod (84), and an inserting rod (83) provided at both ends of the connecting rod (84). The two inserting rods (83) are respectively inserted into the deep holes (81) of the two integrated elements A, and the connecting rod (84) is inserted into the shallow grooves (82) of the two integrated elements A.
5. An ESD electrostatic discharge protection device according to claim 1, characterized in that: The A1 pin of the first integrated element A is connected to the A1 pin of the second integrated element A as the first end of the ESD electrostatic protection device, and the A2 pin of the first integrated element A is connected to the A2 pin of the second integrated element A as the second end of the ESD electrostatic protection device.
6. The ESD electrostatic protection device according to claim 5, characterized in that: It also includes a first-end metal connector (6) and a second-end metal connector (7). The first-end metal connector (6) includes a lead-out pin (61) and two connecting pins (62). The two connecting pins (62) are respectively connected to the A1 pin of the first integrated element A and the A1 pin of the second integrated element A by bolts (5). The lead-out pin (61) serves as the first end of the ESD electrostatic protection device. The second-end metal connector (7) is symmetrically arranged with the first-end metal connector (6). The two connecting pins of the second-end metal connector (7) are respectively connected to the A2 pin of the first integrated element A and the A2 pin of the second integrated element A by bolts (5). Its lead-out pin serves as the second end of the ESD electrostatic protection device.
7. The ESD electrostatic protection device according to claim 1, characterized in that: The overvoltage protection element (1) is a TVS diode, and the derating chip (2) is an LC diode.