Lightning protection piezoresistor

Abstract

The utility model discloses a lightning protection piezoresistor, which belongs to the technical field of piezoresistors, and comprises a piezoresistor main body, two ends of the piezoresistor main body are provided with outgoing lines, one end of each outgoing line far away from the piezoresistor main body is fixedly connected with a conductive block, and the conductive block is movably sleeved with a conductive sleeve. The end, away from the piezoresistor body, of the conductive sleeve is fixedly connected with a voltage diode, the end, away from the common diode, of the voltage diode is fixedly connected with a conductive ring, conductive bases are movably arranged in the conductive ring in a sleeved mode, and the sides, close to each other, of the two conductive bases are fixedly connected with pins. And a limiting assembly is arranged between the conductive sleeve and the piezoresistor main body. According to the utility model, the piezoresistor main body can be conveniently subjected to lightning protection, and the positions of the pins can be adjusted, so that the requirements of different installation environments are met, and better installation conditions are brought to the piezoresistor main body.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of pressure sensitive resistance, especially relates to a lightning protection pressure sensitive resistance. BACKGROUND

[0002] Pressure sensitive resistance is a kind of resistor device with nonlinear volt-ampere characteristic, mainly used to carry out voltage clamping when circuit bears overvoltage, absorbs redundant current to protect sensitive device.The resistance body material of pressure sensitive resistor is semiconductor, so it is a variety of semiconductor resistor.The "zinc oxide" (ZnO) pressure sensitive resistor that a large number of uses at present, its main body material has divalent element zinc (Zn) and six valence element oxygen (O) composition.

[0003] The existing pressure sensitive resistance occurs lightning phenomenon caused by high voltage surge when using, thereby the safety of pressure sensitive resistance and circuit is influenced, and pressure sensitive resistance is mostly welded with fixed pin when installing, and the length and angle of pin are limited, lead to pressure sensitive resistance unable to meet the needs of various installation environments, for this purpose, we provide a lightning protection pressure sensitive resistance. UTILITY MODEL CONTENTS

[0004] In order to solve the above problems, the utility model aims at providing a lightning protection pressure sensitive resistance.

[0005] In order to achieve the above object, the utility model provides a lightning protection pressure sensitive resistance, including pressure sensitive resistance main part, the both ends of pressure sensitive resistance main part are equipped with outgoing line, the one end of outgoing line away from pressure sensitive resistance main part is fixedly connected with electrically conductive block, the outside of electrically conductive block is movably equipped with electrically conductive sleeve, the one end of electrically conductive sleeve away from pressure sensitive resistance main part is fixedly connected with voltage diode, the one end of voltage diode away from ordinary diode is fixedly connected with electrically conductive ring, the inside of electrically conductive ring is movably equipped with electrically conductive seat, the side of two electrically conductive seats close to each other is all fixedly connected with pin, the between electrically conductive sleeve and pressure sensitive resistance main part is equipped with limiting assembly.

[0006] Preferably, the limiting assembly includes a limiting ring fixedly sleeved outside the pressure sensitive resistance main body, one side of the limiting ring is provided with a movable ring movably sleeved outside the pressure sensitive resistance main body, the outer ring of the movable ring is fixedly connected with a plastic connecting rod, and one end of the plastic connecting rod away from the movable ring is fixedly connected with the electrically conductive sleeve.

[0007] Preferably, the electrically conductive sleeve includes a plastic sleeve and a copper sleeve, the copper sleeve is fixedly sleeved inside the plastic sleeve, and the electrically conductive block is in sliding contact with the inner wall of the copper sleeve, and one end of the voltage diode is fixedly connected with the copper sleeve.

[0008] Preferably, the electrically conductive seat is fixedly connected with a circular ring at both ends, and the outer diameter of the circular ring is greater than the inner diameter of the electrically conductive ring.

[0009] Preferably, the inner ring of the movable ring is provided with a rubber ring, and the rubber ring slides on the outside of the pressure-sensitive resistor body.

[0010] Preferably, the pin is in an inverted L-shaped structure, and the pin is fixed with the conductive seat through soldering.

[0011] The lightning protection pressure-sensitive resistor can bring the following beneficial effects:

[0012] 1. By arranging the voltage diode and the ordinary diode at both ends of the pressure-sensitive resistor body, when the input voltage exceeds the limited voltage, the voltage diode is turned on to guide the current to the negative pole, thereby protecting the circuit.

[0013] 2. By arranging the conductive sleeve outside the lead-out wire, the distance between the pin and the pressure-sensitive resistor body can be adjusted horizontally, and the conductive sleeve can also be rotated to change the inclined position of the pin, and the pin is rotated on the conductive ring by means of the conductive seat, so that the pin can always be used vertically.

[0014] In summary, the present scheme has the advantages of simple structure and novel design, which not only facilitates lightning protection of the pressure-sensitive resistor body, but also adjusts the position of the pin, thereby meeting the needs of different installation environments and bringing better installation conditions for the pressure-sensitive resistor body. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings, which are included to provide a further understanding of the present application and constitute a part of this application, illustrate certain illustrative embodiments of the present application and together with their description serve to explain the application. In the drawings:

[0016] In the drawings:

[0017] Figure 1 It is a front view structural schematic diagram of the present application.

[0018] Figure 2 It is a first perspective view structural schematic diagram of the present application.

[0019] Figure 3 It is a second perspective view structural schematic diagram of the present application.

[0020] Figure 4 It is a partially exploded perspective view structural schematic diagram of the present application.

[0021] In the drawings: 1 pressure-sensitive resistor body, 2 lead-out wire, 3 conductive block, 4 conductive sleeve, 5 voltage diode, 6 ordinary diode, 7 conductive ring, 8 conductive seat, 9 pin, 10 limiting ring, 11 movable ring, 12 plastic connecting rod. DETAILED DESCRIPTION

[0022] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail with reference to the accompanying drawings.

[0023] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0024] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "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.

[0025] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, 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, or it can be communicated; it can be directly connected, or it can be indirectly connected through an intermediate medium; 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.

[0026] In the present application, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. In the description of the present application, the description of the terms "one scheme", "some schemes", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more schemes or examples in a suitable manner.

[0027] As Figures 1-4The utility model discloses an embodiment proposes a lightning protection pressure sensitive resistance, including pressure sensitive resistance main part 1, the both ends of pressure sensitive resistance main part 1 are equipped with the outgoing line 2, the outgoing line 2 is fixedly connected with the conductive block 3 at the end away from pressure sensitive resistance main part 1, the outside of conductive block 3 is movably covered with the conductive sleeve 4, the conductive sleeve 4 is fixedly connected with voltage diode 5 at the end away from pressure sensitive resistance main part 1, voltage diode 5 is fixedly connected with the conductive ring 7 at the end away from ordinary diode 6, the inside of conductive ring 7 is movably covered with the conductive seat 8, the side of two conductive seats 8 close to each other is all fixedly connected with the pin 9, and the limit component is equipped between conductive sleeve 4 and pressure sensitive resistance main part 1.

[0028] As Figure 4 The limit component includes the limit ring 10 fixedly covered outside pressure sensitive resistance main part 1, one side of limit ring 10 is equipped with the movable ring 11 movably covered outside pressure sensitive resistance main part 1, the outer ring of movable ring 11 is fixedly connected with the plastic connecting rod 12, and the end of plastic connecting rod 12 away from movable ring 11 is fixedly connected with conductive sleeve 4, limit ring 10 can limit the movement of movable ring 11, so that the movement of conductive sleeve 4 can be limited, prevent conductive sleeve 4 from sliding off the outside of conductive block 3.

[0029] As Figure 4 Conductive sleeve 4 includes plastic sleeve pipe and copper sleeve pipe, copper sleeve pipe is fixedly covered inside plastic sleeve pipe, and conductive block 3 and the inner wall of copper sleeve pipe are in sliding contact, one end of voltage diode 5 is fixedly connected with copper sleeve pipe, so that conductive block 3 and copper sleeve pipe are in conduction.

[0030] As Figure 3 The both ends of conductive seat 8 are fixedly connected with the circular ring, and the outer diameter of circular ring is greater than the inner diameter of conductive ring 7, so that the conductive seat 8 can be avoided from falling off from the conductive ring 7.

[0031] As Figure 2 The inner circle of movable ring 11 is equipped with rubber ring, and the rubber ring is damped sliding outside pressure sensitive resistance main part 1, so that the friction between movable ring 11 and pressure sensitive resistance main part 1 is increased, so that the inclination angle of voltage diode 5 and ordinary diode 6 can be kept stable after adjustment.

[0032] As Figure 1 Pin 9 is inverted L type structure, and pin 9 is fixed through soldering with conductive seat 8.

[0033] Working principle: the voltage diode 5 and the common diode 6 are used for lightning protection of the pressure sensitive resistor body 1, when the pressure sensitive resistor body 1 is installed, the movable ring 11 is manually pulled to slide outside the pressure sensitive resistor body 1, the movable ring 11 drives the conductive sleeve 4 to move horizontally through the plastic connecting rod 12, so that the distance between the conductive sleeve 4 and the pressure sensitive resistor body 1 is adjusted, then the movable ring 11 is manually driven to rotate, and the conductive sleeve 4 is driven to rotate outside the conductive block 3, so that the inclination angle of the voltage diode 5 and the common diode 6 is adjusted, and the conductive seat 8 rotates on the conductive ring 7, so that the pin 9 is kept vertical, thereby adjusting the installation position of the pin 9.

[0034] Each of the embodiments in the specification is described in a progressive manner, and the same and similar parts between the embodiments can be referred to each other, and each embodiment mainly explains the difference from other embodiments. Especially, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the related parts can be referred to the part of the method embodiment.

[0035] The above only describes the embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. A lightning protection varistor, comprising a varistor body (1), characterized in that: The varistor body (1) has lead wires (2) at both ends; A conductive block (3) is fixedly connected to one end of the lead wire (2) away from the varistor body (1); The conductive block (3) is movably fitted with a conductive sleeve (4); A voltage diode (5) is fixedly connected to the end of the conductive sleeve (4) away from the varistor body (1); A conductive ring (7) is fixedly connected to the end of the voltage diode (5) away from the ordinary diode (6); The conductive ring (7) is movably fitted with a conductive seat (8), and pins (9) are fixedly connected to the sides of the two conductive seats (8) that are close to each other. A limiting component is provided between the conductive sleeve (4) and the varistor body (1).

2. The lightning protection varistor according to claim 1, characterized in that: The limiting component includes a limiting ring (10) that is fixedly sleeved on the outside of the varistor body (1); The limiting ring (10) has a movable ring (11) on one side that is movably sleeved outside the varistor body (1); The outer ring of the movable ring (11) is fixedly connected to a plastic connecting rod (12), and the end of the plastic connecting rod (12) away from the movable ring (11) is fixedly connected to the conductive sleeve (4).

3. The lightning protection varistor according to claim 1, characterized in that: The conductive sleeve (4) includes a plastic sleeve and a copper sleeve; The copper sleeve is fixedly fitted inside the plastic sleeve, and the conductive block (3) slides in contact with the inner wall of the copper sleeve. One end of the voltage diode (5) is fixedly connected to the copper sleeve.

4. A lightning protection varistor according to claim 1, characterized in that: The conductive base (8) is fixedly connected to two ends with a ring, the outer diameter of which is larger than the inner diameter of the conductive ring (7).

5. A lightning protection varistor according to claim 2, characterized in that: The inner ring of the movable ring (11) is provided with a rubber ring, and the rubber ring slides with damping on the outside of the varistor body (1).

6. A lightning protection varistor according to claim 1, characterized in that: The pin (9) has an inverted L-shaped structure, and the pin (9) is fixed to the conductive base (8) by soldering.

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