Performance detection equipment for thermal piezoresistor

Abstract

The utility model relates to the technical field of detection equipment, in particular to performance detection equipment for a thermal piezoresistor, which comprises a detection box and a servo mechanism, the servo mechanism is mounted on the inner side of the detection box, the lower end of the servo mechanism is spirally connected with a locking component, a pressure applying component is mounted at the lower end of the locking component, and the locking component comprises a grooved block. The upper end of the grooved block is fixedly connected with a connecting threaded rod, the upper end of the grooved block is provided with an air nozzle, the outer side of the grooved block is fixedly connected with a fixing ring, the inner side of the fixing ring is provided with a placement groove, the inner side of the fixing ring is provided with an air bag belt, the upper end of the air bag belt is fixedly connected with an air inlet pipe, and the lower end of the air bag belt is fixedly connected with an air bag ring. According to the utility model, the connection and disassembly among all parts are simpler and more convenient, and when the surface of a quick-wear part is worn, a user can easily replace the worn part without complicated disassembly, so that the detection accuracy of equipment is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection equipment technical field, concretely is a kind of thermal pressure sensitive resistance performance detection equipment. BACKGROUND

[0002] Thermal pressure sensitive resistance performance detection equipment is the key tool for evaluating the various performance indicators of thermal resistance, these devices can usually measure the electrical properties of thermal resistance such as zero load resistance value, B constant, thermal radiation constant, thermal time constant, voltage resistance and rated power, some can also detect the mechanical properties of thermal resistance such as terminal stretching, bending, weldability, and weather resistance such as cold resistance, heat resistance, moisture resistance, etc.

[0003] In thermal pressure sensitive resistance performance detection equipment, compression resistance detection equipment is mainly used to test the resistance value change of thermal pressure sensitive resistance under the action of pressure, by simulating the pressure conditions in actual application scene, the equipment can detect the resistance value difference of thermal pressure sensitive resistance before and after being pressed, to evaluate the performance stability of thermal pressure sensitive resistance in complex environment.

[0004] When thermal pressure sensitive resistance performance detection equipment detects the compression resistance of thermal resistance, pressure needs to be applied to thermal resistance, since in the process of long time or repeated pressure application, the equipment will have precision decline due to wear or fatigue, leading to inability to apply uniform and stable pressure, if not timely replace the worn parts, it will cause thermal resistance damage, therefore, aiming at the above problems, a kind of thermal pressure sensitive resistance performance detection equipment is provided. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of thermal pressure sensitive resistance performance detection equipment, to solve the problem that due to in the process of long time or repeated pressure application, the equipment will have precision decline due to wear or fatigue, leading to inability to apply uniform and stable pressure, to cause thermal resistance damage.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] The utility model provides a kind of thermal pressure sensitive resistance performance detection equipment, including detection box and servo mechanism, servo mechanism is installed in the inside of detection box, the lower end of the servo mechanism is screw-connected with locking assembly, the lower end of the locking assembly is installed with pressure assembly, the locking assembly includes groove block, the upper end of the groove block is fixedly connected with connecting threaded rod, the upper end of the groove block is installed with air cock, the outside of the groove block is fixedly connected with fixed ring, the inside of the fixed ring is equipped with installation groove, the inside of the fixed ring is installed with air bag belt, the upper end of the air bag belt is fixedly connected with air inlet pipe, the lower end of the air bag belt is fixedly connected with air bag ring, the pressure assembly includes threaded sleeve, the inside of the threaded sleeve is fixed with limit ring, the inside of the limit ring is fixedly connected with positioning column, the inside of the threaded sleeve is slidably connected with pressing plate, the bottom end of the pressing plate is equipped with inter-plate positioning groove, the inside of the threaded sleeve is installed with rubber cover, the inside of the rubber cover is equipped with through-hole, the inside of the rubber cover is equipped with air vent, the inside of the rubber cover is provided with rubber ball.

[0008] As the further optimization of the utility model, the projection of the locking assembly in the vertical direction is circular, the central axis of the locking assembly is on the same straight line as the central axis of the servo mechanism, the connecting threaded rod and the groove block are on the same axis, and the fixed ring is above the threaded sleeve.

[0009] As the further optimization of the utility model, the air bag belt and the air inlet pipe are in communication with each other, the air inlet pipe and the air cock are in communication with each other, the inside of the installation groove is attached to the outside of the air bag belt, the bottom end of the installation groove is arc-shaped, the bottom end of the installation groove is attached to the outside of the air bag ring, and the air bag ring and the air bag belt are in communication with each other.

[0010] As the further optimization of the utility model, the inside of the threaded sleeve is spirally attached to the outside of the groove block, the outside of the pressing plate is attached to the inside of the threaded sleeve, the projection of the pressing plate in the vertical direction is circular, and the upper end of the pressing plate is attached to the bottom end of the air bag ring.

[0011] As the further optimization of the utility model, the limit ring is at the bottom end of the inside of the threaded sleeve, the included angle between the limit ring and the positioning column is 90°, the projection of the limit ring in the vertical direction is annular, one side of the limit ring is arc-shaped, the positioning column is provided with a plurality of positioning columns, and the positioning columns are evenly and equidistantly distributed in the inside of the threaded sleeve in annular array.

[0012] As the further optimization of the utility model, the inter-plate positioning groove is provided with a plurality of inter-plate positioning grooves, the positions of the inter-plate positioning grooves correspond to the positions of the positioning columns one by one, the upper end of the positioning column is arc-shaped, and the positioning column penetrates through the through-hole and is clamped into the inter-plate positioning groove.

[0013] As the further optimization of the utility model, wherein: the lower end of the rubber cover is arc-shaped, the outer side of the rubber cover is attached to one side of the limiting ring, the exhaust holes are evenly and equidistantly distributed in the inner side of the rubber cover in a ring array, the rubber balls are provided, and the diameter of the rubber ball is twice that of the exhaust hole.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] In the utility model, the locking assembly and the pressure applying assembly are arranged, so that the connection and disassembly of the components are more convenient, the damaged components can be easily replaced without complex disassembly when the surface of the vulnerable part is damaged, the detection accuracy of the equipment is ensured, the design of the rubber cover and the rubber ball enhances the structural strength of the equipment, and helps to simulate various pressure conditions that the pressure sensitive resistor may encounter in actual use, so that the performance of the pressure sensitive resistor can be more accurately evaluated. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the utility model;

[0017] Figure 2 It is a whole sectional view of the utility model;

[0018] Figure 3 It is a locking assembly structure schematic view of the utility model;

[0019] Figure 4 It is a locking assembly sectional view of the utility model;

[0020] Figure 5 It is an explosion structure schematic view of the locking assembly of the utility model;

[0021] Figure 6 It is a pressure applying assembly sectional view of the utility model;

[0022] Figure 7 It is a pressure applying assembly structure schematic view of the utility model;

[0023] Figure 8 It is an explosion structure schematic view of the pressure applying assembly of the utility model.

[0024] In the drawing: 1, detection box; 2, servo mechanism;

[0025] 3, locking assembly; 31, slotted block; 32, connecting threaded rod; 33, air nozzle; 34, fixed ring; 35, arrangement groove; 36, air bag belt; 37, air inlet pipe; 38, air bag ring;

[0026] 4, pressure assembly; 41, threaded sleeve; 42, limit ring; 43, positioning column; 44, pressing plate; 45, inter-plate positioning groove; 46, rubber cover; 47, through hole; 48, exhaust hole; 49, rubber ball. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and furthermore, it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.

[0029] Please refer to Figures 1-8 The present application provides a technical solution:

[0030] A hot pressure sensitive resistor performance detection equipment, including detection box 1 and servo mechanism 2, servo mechanism 2 is installed on the inner side of detection box 1, the lower end of servo mechanism 2 is spirally connected with locking assembly 3, locking assembly 3 is installed with pressure assembly 4 at the lower end, locking assembly 3 includes slot block 31, connecting threaded rod 32 is fixedly connected to the upper end of slot block 31, air nozzle 33 is installed on the upper end of slot block 31, fixed ring 34 is fixedly connected to the outer side of slot block 31, setting groove 35 is arranged in the inner side of fixed ring 34, air bag belt 36 is installed in the inner side of fixed ring 34, air inlet pipe 37 is fixedly connected to the upper end of air bag belt 36, air bag ring 38 is fixedly connected to the lower end of air bag belt 36, pressure assembly 4 includes threaded sleeve 41, limit ring 42 is fixedly connected to the inner side of threaded sleeve 41, positioning column 43 is fixedly connected to the inner side of limit ring 42, pressing plate 44 is slidably connected to the inner side of threaded sleeve 41, inter-plate positioning groove 45 is arranged at the bottom end of pressing plate 44, rubber cover 46 is installed in the inner side of threaded sleeve 41, through hole 47 is arranged in the inner side of rubber cover 46, exhaust hole 48 is arranged in the inner side of rubber cover 46, and rubber ball 49 is arranged in the inner side of rubber cover 46.

[0031] As a further implementation of the present scheme, the air bag belt 36 and the air inlet pipe 37 are in communication with each other, the air inlet pipe 37 and the air nozzle 33 are in communication with each other, the inner side of the installation groove 35 is attached to the outer side of the air bag belt 36, the bottom end of the installation groove 35 is arc-shaped, the bottom end of the installation groove 35 is attached to the outer side of the air bag ring 38, the air bag ring 38 and the air bag belt 36 are in communication with each other, the inner side of the threaded sleeve 41 is spirally attached to the outer side of the slotted block 31, the outer side of the pressing plate 44 is attached to the inner side of the threaded sleeve 41, the projection of the pressing plate 44 in the vertical direction is circular, the upper end of the pressing plate 44 is attached to the bottom end of the air bag ring 38, and the projection of the pressing plate 44 in the vertical direction is circular. The setting of the pressing plate 44 can generate downward pressure on the pressing plate 44 attached to the lower end when the air bag ring 38 expands, so that the fixation between the components is more firm;

[0032] As a further implementation of the present scheme, the projection of the locking assembly 3 in the vertical direction is circular, the center axis of the locking assembly 3 is on the same straight line as the center axis of the servo mechanism 2, the connecting threaded rod 32 and the slotted block 31 are on the same axis, and the fixed ring 34 is located above the threaded sleeve 41. The setting of the locking assembly 3 enables the servo mechanism 2 to accurately and stably control the vertical movement of the locking assembly 3, so that the locking assembly 3 drives the pressing assembly 4 to accurately control the pressure of the pressure-sensitive resistor;

[0033] As a further implementation of the present scheme, the lower end of the rubber cover 46 is arc-shaped, the outer side of the rubber cover 46 is attached to one side of the limiting ring 42, the air exhaust hole 48 is provided with a plurality of air exhaust holes, the air exhaust hole 48 is evenly and equidistantly distributed in the inner side of the rubber cover 46 in a ring-shaped array, the rubber ball 49 is provided with a plurality of rubber balls, and the diameter of the rubber ball 49 is twice the diameter of the air exhaust hole 48. The setting of the rubber cover 46 can make the rubber cover 46 be extruded, and the air inside the rubber cover 46 can be exhausted through the air exhaust hole 48. At the same time, the rubber ball 49 can simulate the extrusion effect of the pressure-sensitive resistor from different positions in actual use;

[0034] As a further implementation of the present scheme, the limiting ring 42 is located at the inner bottom end of the threaded sleeve 41, the included angle between the positioning column 43 and the limiting ring 42 is 90°, the projection of the limiting ring 42 in the vertical direction is ring-shaped, one side of the limiting ring 42 is arc-shaped, the positioning column 43 is provided with a plurality of positioning columns, and the positioning column 43 is evenly and equidistantly distributed in the inner side of the threaded sleeve 41 in a ring-shaped array. The setting of the limiting ring 42 and the rubber cover 46 can make the attachment between the limiting ring 42 and the rubber cover 46 more closely, and improve the installation accuracy;

[0035] As a further implementation of the present scheme, the inter-plate positioning groove 45 is provided with a plurality of inter-plate positioning grooves, the positions of the inter-plate positioning grooves 45 correspond to the positions of the positioning columns 43 one by one, the upper end of the positioning column 43 is arc-shaped, the positioning column 43 penetrates through the through hole 47 and is clamped into the inter-plate positioning groove 45, and the arc-shaped setting of the upper end of the positioning column 43 can make the docking of the components more smooth during installation, and reduce the installation difficulty.

[0036] Workflow: When the device is in use, the pressure sensitive resistor is directly placed in the groove set in the detection box 1 to directly feel the change of pressure, the servo mechanism 2 is controlled through the control panel on the detection box 1, so that the servo mechanism 2 pushes the locking assembly 3 downward, when the locking assembly 3 moves downward, it will drive the pressure applying assembly 4 to move downward and contact with the pressure sensitive resistor and apply pressure, since the center axis of the servo mechanism 2 and the center axis of the locking assembly 3 are on the same straight line, the servo mechanism 2 can accurately and stably control the vertical movement of the locking assembly 3, so that the locking assembly 3 drives the pressure applying assembly 4 to accurately control the pressure of the pressure sensitive resistor, when the pressure applying assembly 4 applies pressure to the pressure sensitive resistor, since the bottom end of the rubber cover 46 is arc-shaped, the stress on the rubber cover 46 is uniformly distributed, and the rubber cover 46 has more stable and reliable structural strength, the plurality of rubber balls 49 inside the rubber cover 46 can move irregularly when the rubber cover 46 deforms, so as to simulate the extrusion from different positions that the pressure sensitive resistor may be subjected to in actual use, and the exhaust hole 48 is beneficial to the exhaust of air inside the rubber cover 46, so that the rubber cover 46 can quickly recover deformation, when the device is used for a long time, the rubber cover 46 can be replaced after the surface is worn, only need to screw the threaded sleeve 41, separate the pressure applying assembly 4 from the locking assembly 3, take out the pressure plate 44 from the threaded sleeve 41, then replace the rubber cover 46, align the through hole 47 with the positioning column 43, and make the positioning column 43 pass through the through hole 47, then put the pressure plate 44 into the threaded sleeve 41, make the inter-plate positioning groove 45 engage with the positioning column 43, the arc-shaped setting of the upper end of the positioning column 43 can make the docking of components more smooth during installation, reduce the installation difficulty, the arc-shaped setting of one side of the limiting ring 42 makes the limiting ring 42 fit the rubber cover 46 more closely, improve the installation precision, rotate the threaded sleeve 41, reconnect the pressure applying assembly 4 with the locking assembly 3, inflate the air nozzle 33, make the gas enter the air bag belt 36 through the air inlet pipe 37, the air in the air bag belt 36 will enter the air bag ring 38, make the air bag ring 38 swell, generate downward pressure on the pressure plate 44 that is attached to the lower end, make the fixation between components more firm, at the same time, the air bag belt 36 is set in the installation groove 35, can be extruded by the slotted block 31 when inflated, in this way, the pressure of the gas in the air bag ring 38 is increased, further improve the pressure of the air bag ring 38 on the pressure plate 44.

[0037] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A hot-pressing sensitive resistance performance detection device, comprising a detection box (1) and a servo mechanism (2), characterized in that: The inside of the detection box (1) is provided with a servo mechanism (2), the lower end of the servo mechanism (2) is spirally connected with a locking assembly (3), the lower end of the locking assembly (3) is provided with a pressure applying assembly (4), the locking assembly (3) comprises a slotted block (31), the upper end of the slotted block (31) is fixedly connected with a connecting threaded rod (32), the upper end of the slotted block (31) is provided with an air nozzle (33), the outer side of the slotted block (31) is fixedly connected with a fixed ring (34), the inner side of the fixed ring (34) is provided with a placing groove (35), the inner side of the fixed ring (34) is provided with an air bag belt (36), the upper end of the air bag belt (36) is fixedly connected with an air inlet pipe (37), the lower end of the air bag belt (36) is fixedly connected with an air bag ring (38), the pressure applying assembly (4) comprises a threaded sleeve (41), the inner side of the threaded sleeve (41) is fixedly provided with a limiting ring (42), the inner side of the limiting ring (42) is fixedly connected with a positioning column (43), the inner side of the threaded sleeve (41) is slidably connected with a pressing plate (44), the bottom end of the pressing plate (44) is provided with a inter-plate positioning groove (45), the inner side of the threaded sleeve (41) is provided with a rubber cover (46), the inner side of the rubber cover (46) is provided with a through hole (47), the inner side of the rubber cover (46) is provided with an air vent (48), and the inner side of the rubber cover (46) is provided with a rubber ball (49).

2. The thermal pressure-sensitive resistance performance detection device according to claim 1, characterized in that: The projection of the locking assembly (3) in the vertical direction is circular, the central axis of the locking assembly (3) is on the same straight line as the central axis of the servo mechanism (2), the connecting threaded rod (32) and the slotted block (31) are on the same axis, and the fixed ring (34) is located above the threaded sleeve (41).

3. The thermal compression resistance performance detection device according to claim 1, wherein: The air bag belt (36) and the air inlet pipe (37) are in communication with each other, the air inlet pipe (37) and the air nozzle (33) are in communication with each other, the inner side of the placing groove (35) is attached to the outer side of the air bag belt (36), the bottom end of the placing groove (35) is arc-shaped, the bottom end of the placing groove (35) is attached to the outer side of the air bag ring (38), and the air bag ring (38) and the air bag belt (36) are in communication with each other.

4. The thermal compression resistance performance detection device according to claim 1, wherein: The inner side of the threaded sleeve (41) is spirally attached to the outer side of the slotted block (31), the outer side of the pressing plate (44) is attached to the inner side of the threaded sleeve (41), the projection of the pressing plate (44) in the vertical direction is circular, and the upper end of the pressing plate (44) is attached to the bottom end of the air bag ring (38).

5. The thermal compression resistance performance detection device according to claim 1, wherein: The limiting ring (42) is located at the bottom end of the inner side of the threaded sleeve (41), the included angle between the limiting ring (42) and the positioning column (43) is 90°, the projection of the limiting ring (42) in the vertical direction is annular, one side of the limiting ring (42) is arc-shaped, a plurality of positioning columns (43) are provided, and the positioning columns (43) are evenly and equidistantly distributed in an annular array on the inner side of the threaded sleeve (41).

6. The thermal compression resistance performance detection device according to claim 1, wherein: The inter-plate positioning groove (45) is provided with a plurality of positions corresponding to the positions of the positioning column (43), the upper end of the positioning column (43) is arc-shaped, the positioning column (43) penetrates the through hole (47) and is clamped into the inter-plate positioning groove (45).

7. The thermal compression resistance performance detection device according to claim 1, wherein: The lower end of the rubber cover (46) is arc-shaped, the outer side of the rubber cover (46) is attached to one side of the limiting ring (42), the exhaust hole (48) is provided with a plurality of positions, the exhaust hole (48) is evenly and equidistantly distributed in the rubber cover (46) in a ring array, the rubber ball (49) is provided with a plurality of positions, and the diameter of the rubber ball (49) is twice that of the exhaust hole (48).

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