High-reliability electrostatic protection diode

Abstract

The utility model discloses a high reliability electrostatic protection diode, relates to the electronic component technology field, and comprises a tube shell and connecting assemblies, the top of the tube shell is provided with a top cover, the connecting assemblies are arranged at the left end and the right end of the upper part of the tube shell, each connecting assembly comprises a clamping groove, a clamping block, a sliding sleeve, a guide rod, a spring and a pressing plate, clamping grooves are symmetrically formed in the inner sides of the left end and the right end of the top cover, clamping blocks are slidably connected into the clamping grooves, sliding sleeves are arranged at the bottoms of the clamping blocks, guide rods are slidably connected into the sliding sleeves, the guide rods are fixedly connected with the pipe shell, springs are arranged in the sliding sleeves, and pressing plates are connected to one sides of the sliding sleeves. According to the high-reliability electrostatic protection diode, through the arrangement of the connecting assembly, when the electrostatic protection diode is maintained and overhauled, only the pressing plates on the two sides need to be pressed to enable the sliding sleeves to drive the clamping blocks to be separated from the clamping grooves, so that the limitation between the top cover and the tube shell can be quickly relieved, and a chip in the tube shell can be conveniently overhauled and maintained.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic components, in particular to a high-reliability electrostatic protection diode. Background Art

[0002] A semiconductor refers to a material whose electrical conductivity at room temperature is between that of a conductor and an insulator. For example, a diode is a device made of semiconductors. In the field of discrete device products, electrostatic protection diodes are responsible for protecting the electrostatic protection of various communication interfaces. Electrostatic protection components are required in many fields.

[0003] For example, the utility model with application number CN202020390720.4 discloses an ESD electrostatic protection tube. The utility model integrates an ESD electrostatic diode with a light-emitting diode. When the ESD electrostatic diode operates normally, the light-emitting diode emits light normally. When the ESD electrostatic diode is damaged and cannot protect the light-emitting diode, the diode is damaged under the action of electrostatic discharge and no longer emits light. This method is more intuitive than the method of disassembling and testing with a multimeter. However, when the ESD electrostatic diode fails, it is inconvenient to quickly open it for maintenance, which affects the maintenance efficiency of the electrostatic diode.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved to provide a highly reliable electrostatic protection diode. Utility Model Content

[0005] The purpose of the utility model is to provide a high-reliability electrostatic protection diode to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-reliability electrostatic protection diode, comprising a tube shell and a connecting component, a top cover is arranged on the top of the tube shell, and the connecting component is arranged at the upper left and right ends of the tube shell, the connecting component comprises a slot, a block, a sliding sleeve, a guide rod, a spring and a pressure plate, the left and right ends of the top cover are symmetrically provided with slots on the inner sides, and the inside of the slot is slidably connected with a block, a sliding sleeve is arranged at the bottom of the block, and the inside of the sliding sleeve is slidably connected with a guide rod, and the guide rod is fixedly connected to the tube shell, a spring is arranged inside the sliding sleeve, and a pressure plate is connected to one side of the sliding sleeve.

[0007] Furthermore, the clamping block is in a right-angle shape as a whole, and the clamping block is slidably connected to the tube shell.

[0008] Furthermore, pins are arranged inside the tube shell, and lead-tin-silver solder is arranged on the top of the pins, and a chip is arranged on the top of the lead-tin-silver solder.

[0009] Furthermore, the number of the chips is set to three, and silicon-aluminum wires are connected between the chips.

[0010] Furthermore, a stabilizing component is arranged inside the sliding sleeve, and the stabilizing component includes a slider, a limiting groove and a movable groove. A limiting groove is arranged on the outer side of the slider, and one end of the limiting groove is connected to the movable groove.

[0011] Furthermore, two sliders are symmetrically arranged inside the sliding sleeve, and the sliders are fixedly connected to the guide rod.

[0012] Furthermore, the limiting groove and the movable groove form an L shape, and the width of the limiting groove is consistent with the width of the sliding block.

[0013] Furthermore, the stabilizing assembly also includes a transmission ring and an identification block. The transmission ring is fixed to the outer side of the sliding sleeve, and the transmission ring is engaged with the clamping block. The identification block is arranged on the top of the pressure plate.

[0014] The utility model provides a highly reliable electrostatic protection diode, which has the following beneficial effects:

[0015] 1. The utility model provides a connection component. When maintaining and inspecting the electrostatic protection diode, the utility model only needs to press the pressure plates on both sides so that the sliding sleeve drives the card block to separate from the card slot, and the restriction between the top cover and the tube shell can be quickly released, so as to inspect and maintain the chip inside the tube shell. When installing, the utility model only needs to press the top cover on the upper end of the tube shell. At this time, since the top of the tube shell is in a step shape, the horizontal direction of the top cover can be quickly positioned. At the same time, the top cover will squeeze the inclined surface of the card block to make it slide into the card slot. Then the spring can push the pressure plate so that the sliding sleeve drives the card block to engage with the card slot, so that the top cover can be quickly fixed, which makes the installation very convenient, thereby improving the convenience of maintaining and inspecting the electrostatic protection diode.

[0016] 2. The utility model uses a ceramic tube shell to improve the heat dissipation performance of the internal chip during operation, so that the electrostatic protection diode is stable and reliable during use. At the same time, the sliding sleeve can be rotated during use to move the slider into the limit groove, which can prevent the sliding sleeve from sliding on the outside of the guide rod and prevent the top cover from loosening due to accidental contact with the pressure plate, which is beneficial to improving the stability of the diode during use, and the identification block also facilitates the observation of the rotation amplitude. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall front cross-sectional structure of a high-reliability electrostatic protection diode of the utility model;

[0018] Figure 2 The utility model is a high-reliability electrostatic protection diode Figure 1 The enlarged structural diagram at A in the middle;

[0019] Figure 3 The utility model is a schematic diagram of a three-dimensional structure of a sliding sleeve of a high-reliability electrostatic protection diode.

[0020] In the figure: 1. tube shell; 2. pin; 3. lead-tin-silver solder; 4. chip; 5. silicon-aluminum wire; 6. top cover; 7. connection component; 701. slot; 702. block; 703. sleeve; 704. guide rod; 705. spring; 706. pressure plate; 8. stabilizing component; 801. slider; 802. limit slot; 803. movable slot; 804. transmission ring; 805. identification block. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0022] like Figure 1 and Figure 2 As shown, a high-reliability electrostatic protection diode includes a tube shell 1 and a connecting component 7. A pin 2 is arranged inside the tube shell 1, and a lead-tin-silver solder 3 is arranged on the top of the pin 2, and a chip 4 is arranged on the top of the lead-tin-silver solder 3. The tube shell 1 made of ceramic material can improve the heat dissipation performance of the internal chip 4 during operation, so that the electrostatic protection diode is stable and reliable during use. The number of chips 4 is set to three, and silicon aluminum wires 5 are connected between the chips 4. A top cover 6 is arranged on the top of the tube shell 1. The connecting component 7 is arranged at the left and right ends of the upper part of the tube shell 1. The connecting component 7 includes a slot 701, a block 702, a sleeve 703, a guide rod 704, a spring 705 and a pressure plate 706. The slots 701 are symmetrically opened on the inner sides of the left and right ends of the top cover 6, and the slots 701 are slidably connected to the inside of the slots 701. The block 702 is slidably connected to the inside of the slots 701. A sliding sleeve 703 is provided at the bottom of 02, and a guide rod 704 is slidably connected inside the sliding sleeve 703, and the guide rod 704 is fixedly connected to the tube shell 1. A spring 705 is arranged inside the sliding sleeve 703, and a pressure plate 706 is connected to one side of the sliding sleeve 703. It is only necessary to press the pressure plates 706 on both sides so that the sliding sleeve 703 drives the card block 702 to separate from the card slot 701, so as to quickly release the restriction between the top cover 6 and the tube shell 1, so as to inspect and maintain the chip 4 inside the tube shell 1. The card block 702 is in a right angle shape as a whole, and the card block 702 is slidably connected to the tube shell 1. During installation, the top cover 6 will squeeze the inclined surface of the card block 702 to make it slide into the card slot 701, and then the spring 705 can push the pressure plate 706 so that the sliding sleeve 703 drives the card block 702 to engage with the card slot 701, so as to quickly fix the top cover 6.

[0023] like Figure 2 and Figure 3As shown, a stabilizing component 8 is arranged inside the sliding sleeve 703, and the stabilizing component 8 includes a slider 801, a limiting groove 802 and a movable groove 803. The limiting groove 802 is arranged on the outer side of the slider 801, and one end of the limiting groove 802 is connected to the movable groove 803. Two sliders 801 are symmetrically arranged inside the sliding sleeve 703, and the sliders 801 are fixedly connected to the guide rod 704. The stability during limiting can be improved by using multiple sliders 801. The limiting groove 802 and the movable groove 803 form an L shape, and the width of the limiting groove 802 is the same as the width of the slider 801. When in use, the sliding sleeve 703 can be rotated to move the slider 801 into the limiting groove 802, which can prevent the sliding sleeve 703 from sliding on the outside of the guide rod 704, and avoid accidentally touching the pressure plate 706 to cause the top cover 6 to loosen, which is beneficial to improving the stability of the diode during use. The stabilizing component 8 also includes a transmission ring 804 and an identification block 805. The transmission ring 804 is fixed to the outside of the sliding sleeve 703, and the transmission ring 804 is engaged with the clamping block 702. The identification block 805 is arranged on the top of the pressure plate 706, and the identification block 805 also facilitates the observation of the rotation amplitude.

[0024] In summary, when using this high-reliability electrostatic protection diode, first follow the Figure 1 , Figure 2 and Figure 3 , when the electrostatic protection diode is maintained and repaired, the sliding sleeve 703 is first rotated to move the slider 801 into the movable groove 803. At this time, the identification block 805 is also convenient for observing the rotation amplitude. Then, the pressing plates 706 on both sides are pressed to make the sliding sleeve 703 drive the block 702 to separate from the slot 701 through the transmission ring 804, so that the restriction between the top cover 6 and the tube shell 1 can be quickly released, so as to repair and maintain the chip 4 inside the tube shell 1. Then, when installing, it is only necessary to press the top cover 6 on the upper end of the tube shell 1. At this time, since the top of the tube shell 1 is in a step shape, the horizontal direction of the top cover 6 can be quickly positioned, and the top cover 6 will squeeze the block 70 2 makes it slide into the card slot 701, and then the spring 705 can push the pressure plate 706 so that the sliding sleeve 703 drives the card block 702 to engage with the card slot 701, so that the top cover 6 can be quickly fixed. Finally, the sliding sleeve 703 is rotated in the opposite direction to move the slider 801 into the limiting groove 802, so that the sliding sleeve 703 can be prevented from sliding on the outside of the guide rod 704, and the accidental contact with the pressure plate 706 can be avoided to cause the top cover 6 to loosen, which is beneficial to improving the stability of the diode during use. When the diode is working normally, the ceramic tube shell 1 can improve the heat dissipation performance of the internal chip 4 during work, so that the electrostatic protection diode is stable and reliable during use.

[0025] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A high-reliability electrostatic protection diode, comprising a tube shell (1) and a connecting component (7), characterized in that: A top cover (6) is arranged on the top of the tube shell (1); the connection assembly (7) is arranged at the left and right ends of the upper part of the tube shell (1); the connection assembly (7) comprises a slot (701), a block (702), a sliding sleeve (703), a guide rod (704), a spring (705) and a pressure plate (706); the left and right ends of the top cover (6) are symmetrically provided with slots (701) on the inner sides; the inside of the slot (701) is slidably connected to the block (702); the bottom of the block (702) is provided with a sliding sleeve (703); the inside of the sliding sleeve (703) is slidably connected to the guide rod (704); the guide rod (704) is fixedly connected to the tube shell (1); the inside of the sliding sleeve (703) is provided with a spring (705); and one side of the sliding sleeve (703) is connected to the pressure plate (706).

2. A high reliability electrostatic protection diode according to claim 1, characterized in that: The clamping block (702) is in a right-angle shape as a whole, and the clamping block (702) is slidably connected to the tube shell (1).

3. The high reliability electrostatic protection diode according to claim 1, characterized in that: A pin (2) is arranged inside the tube shell (1), a lead-tin-silver solder (3) is arranged on the top of the pin (2), and a chip (4) is arranged on the top of the lead-tin-silver solder (3).

4. A high reliability electrostatic protection diode according to claim 3, characterized in that: The number of the chips (4) is three, and silicon-aluminum wires (5) are connected between the chips (4).

5. The high-reliability electrostatic protection diode according to claim 1, characterized in that: A stabilizing component (8) is arranged inside the sliding sleeve (703), and the stabilizing component (8) comprises a sliding block (801), a limiting groove (802) and a movable groove (803); a limiting groove (802) is arranged outside the sliding block (801), and one end of the limiting groove (802) is connected to the movable groove (803).

6. The high-reliability electrostatic protection diode according to claim 5, characterized in that: Two sliders (801) are symmetrically arranged inside the sliding sleeve (703), and the sliders (801) are fixedly connected to the guide rod (704).

7. The high-reliability electrostatic protection diode according to claim 5, characterized in that: The limiting groove (802) and the movable groove (803) form an L shape, and the width of the limiting groove (802) is consistent with the width of the sliding block (801).

8. The high-reliability electrostatic protection diode according to claim 5, characterized in that: The stabilizing assembly (8) further comprises a transmission ring (804) and an identification block (805); the transmission ring (804) is fixed to the outside of the sliding sleeve (703), and the transmission ring (804) is engaged with the clamping block (702); and the identification block (805) is arranged on the top of the pressing plate (706).

Images