Safety piezoresistor
By employing a double-layer insulation barrier and protective components in the safety-type varistor, the problem of resistor damage caused by the simple packaging structure is solved, achieving higher stability and mechanical stability, and extending service life.
Patent Information
- Application Number
- CN202422910582.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-11-28
AI Technical Summary
The existing safety varistors have a relatively simple packaging structure, which cannot effectively protect the internal filler, leading to resistor damage.
It adopts a double-layer insulation barrier structure, including ceramic blocks and insulating sleeves, combined with protective components and waterproof sleeves, to enhance insulation performance and prevent moisture and dust from entering. At the same time, the snap-fit installation method of extruded plates and elastic plates improves mechanical stability.
It effectively reduces the impact of external factors on internal components, improves the stability and reliability of resistors, extends service life, and reduces maintenance costs.
Smart Images
Figure CN223566372U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to safe type piezoresistor technical field especially relates to a safe type piezoresistor. BACKGROUND
[0002] The mainboard, also called the mother board, is installed in the computer mainframe box, is one of the most basic and also the most important components of the computer, and plays a pivotal role in the whole computer system. Safe type piezoresistor is needed on the computer mainboard, and the reasons are as follows: first, to prevent overvoltage damage, safe type piezoresistor can clamp the voltage in a relatively safe range in the moment of overvoltage, so as to avoid the breakdown and damage of these sensitive components by high voltage; second, to reduce component damage, the use of piezoresistor can significantly prolong the service life of these components and reduce the maintenance cost and replacement frequency of the equipment.
[0003] The structure of safe type piezoresistor generally includes zinc oxide grains, grain boundaries, electrodes and packaging materials, wherein the zinc oxide grains are the core part of the safe type piezoresistor, which is a material with semiconductor properties, and its crystal structure plays a key role in the working process of the piezoresistor, and the packaging structure is to protect the internal zinc oxide grains, grain boundaries and electrodes and other structures, and the safe type piezoresistor is wrapped with packaging materials.
[0004] The existing safe type piezoresistor has a ceramic sheet in the packaging structure, which protects the internal filler by the insulating function of the ceramic, prevents damage to the internal components of the element by external factors, but this protective structure is relatively simple, and it is difficult to isolate the internal filler from the outside by only relying on the ceramic structure, which leads to the failure to protect the internal filler, resulting in resistance damage, so a safe type piezoresistor is proposed to solve the above problems. Utility model content
[0005] In order to make up for the above shortcomings, the utility model provides a safe type piezoresistor, which aims at improving the problem that the packaging structure is relatively simple in the prior art, which may not effectively protect the internal filler, leading to resistance damage.
[0006] In order to achieve the above purpose, the utility model provides the following technical scheme: a safe type piezoresistor, comprising an insulating block, the insulating block is fixedly connected with a ceramic block outside the wall, the ceramic block is fixedly connected with an insulating sleeve outside the wall, the insulating sleeve is fixedly connected with a filler on the lower surface, the insulating sleeve is provided with a protection assembly outside the wall, the protection assembly is used for protecting the pin, the filler is fixedly connected with a waterproof sleeve outside the wall, and the waterproof sleeve is fixedly connected with a shell outside the wall.
[0007] Further, the protection assembly comprises a protection sleeve, the outer wall of the protection sleeve is fixedly connected to the outer wall of the insulation sleeve, and a pin is fixedly connected to the inside of the protection sleeve.
[0008] Further, the lower surface of the insulation block is fixedly connected with an extrusion plate, and the lower surface of the insulation block is fixedly connected with an elastic plate, and the outer wall of the extrusion plate is slidably connected to the inner wall of the elastic plate.
[0009] Further, a sliding groove is formed in the inside of the elastic plate, an extrusion block is slidably connected to the inside of the elastic plate, a spring is fixedly connected to one side of the extrusion block, and one end of the spring is fixedly connected to the inner wall of the elastic plate.
[0010] Further, an opening and closing opening is formed in the outer wall of the elastic plate, and the outer wall of the extrusion plate is slidably connected to the outer wall of the opening and closing opening.
[0011] Further, an opening and closing opening is formed in the outer wall of the elastic plate, and the outer wall of the extrusion plate is slidably connected to the outer wall of the opening and closing opening.
[0012] Further, the outer wall of the electrode is fixedly connected with a grain boundary, one end of the electrode is fixedly connected with a chip, and the outer wall of the chip is fixedly connected to the inside of the grain boundary.
[0013] Further, the outer wall of the extrusion plate is slidably connected to the outer wall of the extrusion block.
[0014] The utility model has the following beneficial effects:
[0015] 1、 the utility model discloses, the ceramic block of insulation block outer wall has good insulating performance, can primarily block the interference of outside electric field, magnetic field and the like, prevents its influence internal element, and the insulation sleeve of ceramic block outer wall further strengthens the insulating effect, forms double -layer insulation barrier, effectively reduces the influence of external factors to internal element, and the waterproof sleeve installed on the filler outer wall can effectively prevent moisture from entering, even when the equipment is splashed with water in the humid environment or, the filler and element in the inside can be protected from the erosion of water.
[0016] 2、 the utility model discloses, through the extrusion of extrusion plate to elastic plate can let elastic plate spread to all around, when extrusion plate enters the recess of elastic plate, elastic plate occurs rebound and opens and closes the mouth and is closed, prevents extrusion plate from falling off, through the installation mode of this buckle can conveniently install resistance, and the original glue connection its bonding strength can be insufficient to withstand the various external forces that pressure sensitive resistance receives in the long-term use process, leads to the unnecessary loss of resistance falling off. DRAWINGS
[0017] Figure 1A three-dimensional structure schematic diagram of a safety type pressure sensitive resistor is provided in the utility model.
[0018] Figure 2 A filler part structure schematic diagram of a safety type pressure sensitive resistor is provided in the utility model.
[0019] Figure 3 An elastic plate part structure schematic diagram of a safety type pressure sensitive resistor is provided in the utility model.
[0020] Legend:
[0021] 1, insulating block; 2, grain boundary; 3, protective sleeve; 4, pin; 5, electrode; 6, elastic plate; 7, ceramic block; 8, insulating sleeve; 9, shell; 10, waterproof sleeve; 11, filler; 12, chip; 13, sliding groove; 14, extrusion plate; 15, spring; 16, extrusion block; 17, opening and closing mouth. Specific implementation
[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0023] Reference Figure 1 and Figure 2The utility model provides an embodiment: a safe type pressure sensitive resistance, including insulator 1, insulator 1 outer wall fixedly connected with ceramic block 7, can reduce outside interference through installing ceramic block 7, ceramic block 7 outer wall fixedly connected with insulating sleeve 8, can carry out preliminary blocking to outside electromagnetic interference through installing insulating sleeve 8, insulating sleeve 8 lower surface fixedly connected with filler 11, can realize normal work of resistance through installing filler 11, insulating sleeve 8 outer wall is provided with protection assembly, and protection assembly is used for protecting pin 4, and filler 11 outer wall fixedly connected with waterproof sleeve 10, can reduce the influence of external moisture to filler 11 through setting waterproof sleeve 10, waterproof sleeve 10 outer wall fixedly connected with shell 9, can reduce the influence of outside knock to internal filler 11 through installing shell 9, protection assembly includes protective sleeve 3, and protective sleeve 3 outer wall is fixedly connected in the outer wall of insulating sleeve 8, and protective sleeve 3 inside fixedly connected with pin 4, can protect pin 4 through installing protective sleeve 3, prevents the knock of the root of pin 4 and leads to pin 4 damage, pin 4 one end fixedly connected with electrode 5, can realize the conduction of electrode 5 through the connection of electrode 5 and pin 4, electrode 5 outer wall is fixedly connected in waterproof sleeve 10 inside, electrode 5 outer wall is fixedly connected in filler 11 inside, through the installation of electrode 5 in waterproof sleeve 10 and filler 11 inside, can protect it while also not let it be damaged, electrode 5 outer wall fixedly connected with grain boundary 2, electrode 5 one end fixedly connected with chip 12, chip 12 outer wall is fixedly connected in grain boundary 2 inside, through the connection of electrode 5 and chip 12, can let pressure sensitive resistance normal work, through setting grain boundary 2 can effectively conduct current and have enough thermal stability.
[0024] Refer to Figure 1 - Figure 3 , insulator 1 lower surface fixedly connected with extrusion plate 14, create conditions for subsequent extrusion of elastic plate 6 through setting extrusion plate 14, insulator 1 lower surface fixedly connected with elastic plate 6, extrusion plate 14 outer wall slidingly connected with elastic plate 6, through the connection of extrusion plate 14 and elastic plate 6, can realize that extrusion plate 14 slides in the inner wall of elastic plate 6, sliding groove 13 is set up in the inside of elastic plate 6, and create conditions for subsequent reinforcement through setting sliding groove 13, extrusion block 16 is slidingly connected in the inside of elastic plate 6, spring 15 is fixedly connected on one side of extrusion block 16, and one end of spring 15 is fixedly connected in the inner wall of elastic plate 6, when extrusion plate 14 is inserted into the inside of elastic plate 6, can extrude extrusion block 16 through the extrusion of extrusion plate 14, can make spring two 15 deform through the extrusion of extrusion block 16, and the reaction force generated by spring two 15 can extrude extrusion plate 14 by extrusion block 16, and can reinforce the installation of resistance, opening 17 is set up in the outer wall of elastic plate 6, and extrusion plate 14 outer wall is slidingly connected in the outer wall of opening 17, and extrusion plate 14 can be slid into the inside of elastic plate 6 through setting opening 17, extrusion plate 14 outer wall is slidingly connected in the outer wall of extrusion block 16.
[0025] Working principle: The ceramic block 7 and the insulating sleeve 8 of the outer wall of the insulating block 1 form a double-layer insulating barrier, the ceramic block 7 has good insulating performance and can block external electric field, magnetic field and other interference to prevent its influence on the internal components, while the insulating sleeve 8 can further enhance the insulating effect and also provide certain mechanical protection for the internal structure, the waterproof sleeve 10 installed on the outer wall of the filler 11 can effectively prevent moisture from entering to avoid internal component short circuit or corrosion caused by moisture, and the shell 9 of the outer wall of the waterproof sleeve 10 plays a role in dustproof and physical protection to prevent dust and other particulate matter from entering the inside of the varistor and avoid short circuit caused by dust accumulation, and the shell 9 can withstand a certain degree of mechanical impact to protect the internal components from external impact, the electrode 5 can be installed to connect the chip 12 and the pin 4 together to make the varistor work normally, and the grain boundary 2 installed on the outer wall of the chip 12 can effectively conduct current and has sufficient thermal stability, so that the varistor will not be damaged due to overheating during energy absorption, these multi-layer protection structures work together to make the varistor maintain stable performance in complex working environment (such as humidity, dust, electromagnetic interference, etc.), reduce the influence of external factors on the internal filler 11 and the pin 4 and other key structures, thereby improving the stability and reliability of the varistor, when installing the resistor, the extrusion plate 14 is first installed on the outer wall of the insulating block 1, the extrusion plate 14 extrudes the elastic plate 6, the elastic plate 6 expands outward, when the extrusion plate 14 enters the opening 17 of the elastic plate 6 and reaches the recess, the elastic plate 6 will rebound to close the opening 17, the extrusion plate 14 will be clamped in the elastic plate 6, at this time, the force generated by the spring 15 makes the extrusion plate 14 and the elastic plate 6 form a tight connection, thereby fixing the varistor at the installation position, this installation method is convenient and fast, without the need for additional tools (such as screws or welding equipment), and compared with the traditional glue connection method, it has better mechanical stability.
[0026] Finally, it should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent replacement for some technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A safety pressure-sensitive resistor comprising an insulating block (1), characterized in that: The outer wall of the insulating block (1) is fixedly connected with a ceramic block (7), the outer wall of the ceramic block (7) is fixedly connected with an insulating sleeve (8), the lower surface of the insulating sleeve (8) is fixedly connected with a filler (11), the outer wall of the insulating sleeve (8) is provided with a protection assembly, the protection assembly is used for protecting the pin (4), the outer wall of the filler (11) is fixedly connected with a waterproof sleeve (10), and the outer wall of the waterproof sleeve (10) is fixedly connected with a shell (9).
2. A safety varistor according to claim 1, characterized in that: The protection assembly comprises a protective sleeve (3), and the outer wall of the protective sleeve (3) is fixedly connected to the outer wall of the insulating sleeve (8).
3. The safety varistor according to claim 1, wherein: The lower surface of the insulating block (1) is fixedly connected with an extrusion plate (14), and the lower surface of the insulating block (1) is fixedly connected with an elastic plate (6).
4. A safety varistor according to claim 3, wherein: The inner part of the elastic plate (6) is provided with a sliding groove (13), the inner part of the elastic plate (6) is slidably connected with an extrusion block (16), one side of the extrusion block (16) is fixedly connected with a spring (15), and one end of the spring (15) is fixedly connected to the inner wall of the elastic plate (6).
5. A safety varistor according to claim 4, wherein: The outer wall of the elastic plate (6) is provided with an opening and closing opening (17), and the outer wall of the extrusion plate (14) is slidably connected to the outer wall of the opening and closing opening (17).
6. The safety varistor of claim 1 wherein: One end of the pin (4) is fixedly connected with an electrode (5), the outer wall of the electrode (5) is fixedly connected to the inner part of the waterproof sleeve (10), and the outer wall of the electrode (5) is fixedly connected to the inner part of the filler (11).
7. A safety varistor according to claim 6, wherein: The outer wall of the electrode (5) is fixedly connected with a grain boundary (2), one end of the electrode (5) is fixedly connected with a chip (12), and the outer wall of the chip (12) is fixedly connected to the inner part of the grain boundary (2).
8. The safety varistor of claim 5 wherein: The outer wall of the extrusion plate (14) is slidably connected to the outer wall of the extrusion block (16).