CN210896815U

CN210896815U - High-energy multilayer piezoresistor

Info

Publication number: CN210896815U
Application number: CN201921451989.2U
Authority: CN
Inventors: 黄烨臻; 周银霞
Original assignee: Wuhan Citizen Yi Technology Co ltd
Current assignee: Wuhan Citizen Yi Technology Co ltd
Priority date: 2019-09-03
Filing date: 2019-09-03
Publication date: 2020-06-30
Anticipated expiration: 2029-09-03

Abstract

The utility model discloses a high energy multilayer piezoresistor, concretely relates to electron device protection field, including box body, high heat dissipation insulating colloid, piezo-resistor module, piezo-resistor bare chip, electrically conductive connecting device, circuit board, the dismouting groove has been seted up to the inner wall of box body, the both sides fixed mounting of box body has the insulating rubber piece, the another side movable mounting of insulating rubber piece has the dismouting door, the top fixed mounting of box body inner chamber has the heating panel. The utility model discloses a set up quick heat abstractor for in-service use, because the multi-disc electricity is connected together and the colloid heat dissipation is slow, so can lead to inside high temperature at the during operation, quick heat abstractor can carry out the heat response in inside, when the heat reaches a definite value, the control fan dispels the hot gas, thereby dispels the inside heat fast, has both avoided the problem of the too high damage part of temperature, has solved the slow problem of radiating rate again.

Description

High-energy multilayer piezoresistor

Technical Field

The utility model relates to an electron device protection technical field, more specifically say, the utility model specifically is a high energy multilayer piezoresistor.

Background

The piezoresistor is a voltage-limiting type protection device at present, utilizes the nonlinear characteristic of the piezoresistor, and when overvoltage appears between two poles of the piezoresistor, the piezoresistor can clamp the voltage to a relatively fixed voltage value, thereby realize the protection to the back stage circuit, the main parameters of the piezoresistor are: voltage dependent voltage, current capacity, junction capacitance, response time, etc.; the piezoresistor adopted at present is either a bare chip piezoresistor or a single packaged piezoresistor, but the bare chip piezoresistor has low flow rate, poor moisture resistance and poor insulation property and is easy to break; and the single packaged piezoresistor has the problems of low flux, large volume and inflexible application and assembly.

In order to solve the above problem, patent application publication No. CN208189321U discloses a high-energy multilayer varistor, refer to fig. 5 and 6 of the specification, through overcoming the deficiency of the prior art in this application, the utility model provides a high-energy multilayer varistor, it is through setting up the varistor bare chip 4 that the multi-disc electricity linked together in a packaging box body 1, can reach the effect that the through flow is big, small to improve varistor's reliability and protective properties.

However, the technical scheme still has more defects in actual application;

in the device, in order to enable the resistor to have a large flow capacity and a small volume, a plurality of piezoresistor bare chips which are electrically connected together are arranged in a packaging box body, so that the piezoresistor bare chips have a large same flow capacity, and a heat dissipation insulating colloid is arranged;

in practical use, resistors are packaged well, so that the device is inconvenient to disassemble and assemble, and is not suitable for each mounting point when being externally mounted.

It is therefore desirable to provide a high power multilayer varistor with fast heat dissipation and easy assembly and disassembly.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides a high-energy multilayer piezoresistor, through setting up quick heat abstractor and dismouting device for at the resistor during operation, quick heat abstractor can carry out the hotness response in the resistor inside, thereby distribute away the hotness fast, when the assembly is nimble in using being carried out simultaneously, utilize the dismouting device to carry out quick dismantlement and installation to the resistor, with the problem of proposing in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a high-energy multilayer piezoresistor comprises a box body, a high-heat-dissipation insulating colloid, a piezoresistor module, a piezoresistor bare chip, a conductive connecting device and a circuit board, the inner wall of the box body is provided with a dismounting groove, two sides of the box body are fixedly provided with insulating rubber blocks, the other side surface of the insulating rubber block is movably provided with a dismounting door, the top of the inner cavity of the box body is fixedly provided with a heat radiation plate, one side of the heat dissipation plate is fixedly connected with a conductive wire, the other side of the heat dissipation plate is fixedly connected with a conductive wire, the other end of the conducting wire is fixedly provided with a temperature sensor, the bottom of the temperature sensor is fixedly provided with an induction joint, a sliding plate is fixedly arranged at the bottom of the box body, fixed blocks are movably arranged at two sides of the bottom of the sliding plate, the side fixed mounting of fixed block has fixed screw thread, the bottom fixed mounting of box inner chamber has the fixed column.

In a preferred embodiment, the top of the box body is provided with a heat dissipation window, the width of the heat dissipation window is two centimeters shorter than the length of the heat dissipation plate, and the heat dissipation window is arranged on the top of the heat dissipation plate.

In a preferred embodiment, a motor is fixedly mounted at the top of the inner cavity of the heat dissipation plate, a fan shaft is movably mounted at the bottom of the motor, and fan blades are welded on two sides of the fan shaft.

In a preferred embodiment, the top and the bottom of the inner cavity of the sliding plate are fixedly provided with welding plates, the bottom of each welding plate is welded with a sliding tooth, and the inner cavity of the sliding plate is movably provided with a clamping block and a clamping tooth.

In a preferred embodiment, the sliding teeth are provided with a plurality of sliding blocks, the clamping blocks are movably clamped at the bottom and the top of the sliding teeth, and the clamping blocks are connected with the fixed block through the sliding plates.

In a preferred embodiment, one side of the electric machine is connected to the electrically conductive wire and the other side of the electric machine is connected to the electrically conductive wire.

In a preferred embodiment, the fan blades of the fan blades are of the turbine type, and the wind direction is upward.

In a preferred embodiment, the conductive wire is connected to an external electric machine through an insulating rubber block.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a set up quick heat abstractor, make in the in-service use, because the multi-disc electricity is connected together and the colloid heat dissipation is slow, so can lead to inside high temperature at the during operation, quick heat abstractor can carry out the heat response in inside, when the heat reaches a definite value, control the fan and go out the hot gas dissipation, thereby dispel the inside heat fast, both avoided the problem that the part was damaged to the high temperature, solved the slow problem of radiating rate again;

2. utility model discloses a set up the dismouting device for when the user uses the assembly resistor, because the resistor all is packaged, inconvenient dismouting, and when externally installing, also be not suitable for every mounting point, the dismouting device can slot by the resistor this moment, the inside dismouting of being convenient for, installs the slip fixture block in the bottom simultaneously, the externally mounted of being convenient for, both avoided the inconvenient problem of dismouting, solved the problem that the mounting point is suitable for again.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is an overall plan view of the present invention.

Fig. 3 is a schematic view of the structure of the inner cavity of the heat dissipation plate of the present invention.

Fig. 4 is a schematic view of the structure of the inner cavity of the sliding plate of the present invention.

Fig. 5 is a schematic diagram of a comparison document of the present invention.

Fig. 6 is an internal schematic view of a comparison file according to the present invention.

The reference signs are: 1. a box body; 2. high heat dissipation insulating colloid; 3. a varistor module; 4. a varistor die; 5. a conductive connection device; 6. a circuit board; 7. disassembling and assembling the groove; 8. an insulating rubber block; 9. disassembling and assembling the door; 10. a heat dissipation plate; 11. a conductive wire; 12. a conductive line; 13. a temperature sensor; 14. an inductive coupling; 15. a sliding plate; 16. a fixed block; 17. fixing threads; 18. fixing a column; 19. a heat dissipation window; 101. a motor; 102. a fan shaft; 103. a fan blade; 151. welding the plate; 152. a sliding tooth; 153. a clamping block; 154. the clamping tooth.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in the attached figures 1-6, the high-energy multilayer piezoresistor comprises a box body 1, high-heat-dissipation insulating colloid 2, a piezoresistor module 3, a piezoresistor bare chip 4, a conductive connecting device 5 and a circuit board 6, wherein the inner wall of the box body 1 is provided with a dismounting groove 7, two sides of the box body 1 are fixedly provided with insulating rubber blocks 8, the other side surface of each insulating rubber block 8 is movably provided with a dismounting door 9, the top of the inner cavity of the box body 1 is fixedly provided with a heat dissipation plate 10, one side of the heat dissipation plate 10 is fixedly connected with a conductive wire 11, the other side of the heat dissipation plate 10 is fixedly connected with a conductive wire 12, the other end of the conductive wire 12 is fixedly provided with a temperature sensor 13, the bottom of the temperature sensor 13 is fixedly provided with an induction connector 14, the bottom of the box body 1 is fixedly provided with a sliding, the bottom of the inner cavity of the box body 1 is fixedly provided with a fixed column 18.

As shown in fig. 2, the top of the box 1 is opened with a heat dissipation window 19, and the width of the heat dissipation window 19 is two centimeters shorter than the length of the heat dissipation plate 10, and the heat dissipation window 19 is opened at the top of the heat dissipation plate 10.

The implementation mode is specifically as follows: through the arrangement of the heat dissipation window 19, hot air in the box body 1 is extracted from the heat dissipation plate 10, and the hot air is extracted to the outside through the heat dissipation window 19;

as shown in fig. 3, a motor 101 is fixedly mounted at the top of the inner cavity of the heat dissipation plate 10, a fan shaft 102 is movably mounted at the bottom of the motor 101, and fan blades 103 are welded at two sides of the fan shaft 102.

The implementation mode is specifically as follows: by arranging the heat dissipation plate 10, the motor 101 is controlled to start by using the heat dissipation plate 10 and the conducting wire 11, and the fan shaft 102 rotates, so that the fan blades 103 are driven to rotate, and finally hot air is absorbed;

as shown in fig. 4, the top and the bottom of the inner cavity of the sliding plate 15 are fixedly provided with a welding plate 151, the bottom of the welding plate 151 is welded with a sliding tooth 152, and the inner cavity of the sliding plate 15 is movably provided with a clamping block 153 and a clamping tooth 154.

The implementation mode is specifically as follows: the sliding plate 15 is arranged, so that the fixed block 16 is used for controlling the clamping block 153 to move, and the clamping tooth 154 is used for clamping with the sliding tooth 152 when the fixed position is realized;

the temperature sensor 13 is of a Longshun brand and an LSCI model, and the motor 101 is of a Kedi brand and a GYLDS-1 model.

The utility model discloses the theory of operation:

a preparation stage: the apparatus is first placed at a designated location and then the various components are installed.

The working stage is as follows: first when induction joint 14 senses the inside high temperature of box body 1, conduct for temperature-sensing ware 13, rethread conduction line 12 conducts for motor 101, make motor 101 begin to work, thereby rotate fan axle 102, drive fan blade 103 and rotate, absorb inside steam, recycle heat dissipation window 19 and discharge, when needing to carry out the dismouting to the resistor simultaneously, open dismouting door 9 and put into the resistance card, reuse fixed block 16 and fixed thread 17 adjustment external installation distance, the resistor fixed mounting of being convenient for is outside.

And (5) finishing: firstly, the piezoresistor bare chip 4 is disassembled, then the disassembling door 9 is closed, and then the fixing thread 17 is clamped at the appointed position.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a high-energy multilayer piezoresistor, includes box body (1), high heat dissipation insulating colloid (2), piezoresistor module (3), piezoresistor bare chip (4), electrically conductive connecting device (5), circuit board (6), its characterized in that: the detachable type temperature sensor is characterized in that a detachable groove (7) is formed in the inner wall of the box body (1), insulating rubber blocks (8) are fixedly mounted on two sides of the box body (1), a detachable door (9) is movably mounted on the other side face of each insulating rubber block (8), a heat dissipation plate (10) is fixedly mounted on the top of the inner cavity of the box body (1), a conductive wire (11) is fixedly connected to one side of each heat dissipation plate (10), a conductive wire (12) is fixedly connected to the other side of each heat dissipation plate (10), a temperature sensor (13) is fixedly mounted at the other end of each conductive wire (12), an induction joint (14) is fixedly mounted at the bottom of each temperature sensor (13), a sliding plate (15) is fixedly mounted at the bottom of the box body (1), fixed blocks (16) are movably mounted on two sides of the bottom of each sliding plate (15, the bottom of the inner cavity of the box body (1) is fixedly provided with a fixing column (18).

2. A high energy multilayer varistor according to claim 1, characterized in that: heat dissipation window (19) have been seted up at the top of box body (1), and the width of heat dissipation window (19) is two centimetres less than the length of heating panel (10), heat dissipation window (19) set up at the top of heating panel (10).

3. A high energy multilayer varistor according to claim 1, characterized in that: the top of the inner cavity of the heat dissipation plate (10) is fixedly provided with a motor (101), the bottom of the motor (101) is movably provided with a fan shaft (102), and fan blades (103) are welded on two sides of the fan shaft (102).

4. A high energy multilayer varistor according to claim 1, characterized in that: the sliding plate is characterized in that welding plates (151) are fixedly mounted at the top and the bottom of an inner cavity of the sliding plate (15), sliding teeth (152) are welded at the bottom of the welding plates (151), and a clamping block (153) and clamping teeth (154) are movably mounted in the inner cavity of the sliding plate (15).

5. An energetic multilayer varistor according to claim 4, characterized in that: the sliding teeth (152) are provided with a plurality of clamping blocks (153) which are movably clamped at the bottom and the top of the sliding teeth (152), and the clamping blocks (153) are connected with the fixed block (16) through the sliding plate (15).

6. An energetic multilayer varistor according to claim 3, characterized in that: one side of the motor (101) is connected with the conducting wire (11), and the other side of the motor (101) is connected with the conducting wire (12).

7. An energetic multilayer varistor according to claim 3, characterized in that: the fan blades of the fan blades (103) are of a turbine type, and the wind direction is upward.

8. A high energy multilayer varistor according to claim 1, characterized in that: the conducting wire (11) is connected with an external motor through an insulating rubber block (8).