NTC (Negative Temperature Coefficient) thermistor measurement and analysis equipment

Abstract

The utility model relates to the technical field of resistance testing, in particular to NTC (Negative Temperature Coefficient) thermistor measuring and analyzing equipment which comprises a measuring device body, a plurality of wiring terminals are integrally formed on the measuring device body, two groups of limiting plates are fixedly connected to the surfaces of the two ends of the measuring device body, and clamping blocks are slidably connected to the interiors of the limiting plates. A rotating plate is rotatably connected to the surface of the limiting plate, the clamping block is embedded in the surface of the rotating plate, an extension plate is slidably connected to the surface of one end of the rotating plate, shaft rods are fixedly connected to the surfaces of the two ends of the extension plate, and fixing blocks are inserted into the surfaces of the shaft rods and clamped to the surface of the rotating plate; the measuring device has the advantages that the rotating plate is arranged, the slidable extension plate is arranged on the surface of the rotating plate, the supporting height of the measuring device body is adjusted, the measuring device is stably supported in different terrains and working scenes, the measuring accuracy of the device is improved, the extension plate is used as a handle, the device is convenient to carry and move, and the practicability is high. And therefore, the practicability and the flexibility are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of resistance testing, in particular to an NTC thermistor measurement and analysis device. Background Art

[0002] NTC thermistor is a thermistor named after the acronym of Negativ Temperature Coefficient. The word thermistor refers to NTC thermistor. NTC thermistor is an oxide semiconductor ceramic composed of manganese, nickel and cobalt. It can be seen everywhere in our lives. Due to the characteristic that the resistance decreases with the increase of temperature, it is not only used as a temperature sensing device in thermometers and air conditioners, or a temperature control device in smart phones, kettles and irons, but also used for current control in power supply equipment. NTC thermistor measurement and analysis equipment is a special tool for evaluating, testing and calibrating the performance of NTC thermistors.

[0003] In the prior art, NTC thermistor measurement and analysis equipment usually includes components such as a precision resistance measuring instrument, a temperature control system, and data analysis software. The resistance measuring instrument has multiple precision components integrated inside, a shell provided outside, and a bracket provided at the bottom of the shell.

[0004] However, the bracket height at the bottom of the measuring device is fixed, and it is impossible to stably support the device in different terrains and working scenarios, which may cause the device to tilt or shake, resulting in errors in the test results, thereby affecting the measurement results of the equipment. Utility Model Content

[0005] The utility model aims to provide a NTC thermistor measurement and analysis device 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: an NTC thermistor measurement and analysis device, comprising a measuring device body, the measuring device body being integrally formed with a plurality of wiring terminals, two sets of limit plates being fixedly connected to the surfaces of both ends of the measuring device body, a clamping block being slidably connected inside the limit plate, a rotating plate being rotatably connected to the surface of the limit plate, the clamping block being embedded in the surface of the rotating plate, an extension plate being slidably connected to the surface of one end of the rotating plate, a shaft rod being fixedly connected to the surfaces of the extension plate, a fixing block being plugged into the surface of the shaft rod, the fixing block being clamped on the surface of the rotating plate to limit the extension plate.

[0007] Preferably, there are two limit plates in each group, and the limit plates are in the form of a circular plate with a "T"-shaped cross-section. A draw groove is provided on the surface of the limit plate, and the draw groove is in the form of a "cross"-shaped groove. A pull groove is provided on the surface of one end of the limit plate away from the measuring device body, and the draw grooves are connected to each other, and a rubber strip is fixedly connected to the surface of the draw groove.

[0008] Preferably, a pull plate is inserted into the surface of the grooved slot. The pull plate has a circular plate-like structure with a "T"-shaped cross-section. One end of the clamping block is fixedly connected to the surface of the pull plate. The clamping block has a "cross"-shaped plate-like structure. The other end of the clamping block is fixedly connected to the surface of the rubber strip.

[0009] Preferably, the rotating plate has a square plate-like structure, and one end of the rotating plate is provided with an arc surface. A rotating groove is formed on the surface of the rotating plate, and a plurality of card slots distributed in an array are formed on the surface of the rotating groove. The card slots are square grooves, and one end of the clamping block is embedded in the surface of the card slot.

[0010] Preferably, sliding grooves are formed on the surfaces of both ends of the rotating plate, and a plurality of fixing grooves distributed in an array are formed on the surfaces of the sliding grooves. An extension plate groove is formed at the bottom end of the rotating plate. The sliding grooves communicate with the extension plate groove. The extension plate is slidably connected to the surface of the extension plate groove. The extension plate has a "C"-shaped plate-like structure and is composed of two vertical plates and a horizontal plate. An anti-slip pad is fixedly connected to the surface of the horizontal plate of the extension plate.

[0011] Preferably, the shaft rod has a cylindrical structure. The shaft rod is slidably connected to the surface of the sliding groove. A rubber groove is formed on the surface of the shaft rod, and a rubber block is fixedly connected to the surface of the rubber groove. The surface of the fixing block is fixedly connected to the other end of the rubber block. The rubber block is clamped on the surface of the fixing groove.

[0012] Compared with the prior art, the beneficial effect of the present utility model is that: by providing a rotating plate and an extension plate that can be pulled and slid on the surface of the rotating plate, the adjustment of the support height of the measuring device body is realized, so as to achieve stable support for the measuring device in different terrains and working scenarios, improve the accuracy of equipment measurement, and the extension plate can be rotated to the top surface of the limiting plate to be used as a handle, which is convenient for carrying and moving the equipment, serving two purposes with one object, and increasing the practicality and flexibility.

[0013] The NTC thermistor measurement and analysis equipment proposed by the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a half-sectional structural schematic diagram of the present utility model after the extension plate is turned down;

[0016] Figure 3 is Figure 2 an enlarged schematic diagram of the structure at A in

[0017] Figure 4 is Figure 2 an enlarged schematic diagram of the structure at B in

[0018] Figure 5 is a schematic structural diagram of the extension plate of the present utility model;

[0019] Figure 6 This is a schematic diagram of the structure of the limiting plate of the utility model.

[0020] In the figure: 1. Measuring device body; 2. Extension plate groove; 3. Anti-skid pad; 4. Rotating plate; 5. Extension plate; 6. Limiting plate; 7. Pull plate; 8. Pull groove; 9. Extraction groove; 10. Rubber strip; 11. Card slot; 12. Card block; 13. Shaft rod; 14. Rubber groove; 15. Rubber block; 16. Fixed block; 17. Slide groove; 18. Fixed groove; 19. Wiring terminal; 20. Rotating groove. DETAILED DESCRIPTION

[0021] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1

[0023] See also Figure 1 to Figure 2 The utility model provides a technical solution: an NTC thermistor measurement and analysis device, comprising a measuring device body 1, the measuring device body 1 is integrally formed with a plurality of wiring terminals 19, two sets of limit plates 6 are fixedly connected to the two end surfaces of the measuring device body 1, a clamping block 12 is slidably connected inside the limit plate 6, a rotating plate 4 is rotatably connected to the surface of the limit plate 6, the clamping block 12 is embedded in the surface of the rotating plate 4, an extension plate 5 is slidably connected to the surface of one end of the rotating plate 4, an extension plate 5 is slidably connected to the two end surfaces of the extension plate 5, a shaft rod 13 is fixedly connected to the surface of the shaft rod 13, a fixing block 16 is inserted into the surface of the shaft rod 13, the fixing block 16 is clamped on the surface of the rotating plate 4, the extension plate 5 is limited, a rotating plate 4 is provided, and a pullable and slidable extension plate 5 is provided on the surface of the rotating plate 4, so as to adjust the support height of the measuring device body 1, thereby realizing stable support of the measuring device body 1 in different terrains and working scenes, improving the accuracy of equipment measurement, and the extension plate 5 can be rotated to the top end on the surface of the limit plate 6 and used as a handle, so as to facilitate the carrying and movement of the equipment, and to achieve dual-purpose use, thereby increasing practicality and flexibility.

[0024] Embodiment 2

[0025] See also Figure 3 to Figure 4, on the basis of the first embodiment, in order to limit and flip the rotating plate 4 and the extension plate 5, there are two limiting plates 6 in each group. The limiting plate 6 has a circular plate-like structure with a "T"-shaped cross-section. A drawing groove 9 is formed on the surface of the limiting plate 6. The drawing groove 9 is a "cross"-shaped groove. A pulling groove 8 is formed on the surface of the end of the limiting plate 6 away from the measuring device body 1. The drawing groove 9 communicates with the pulling groove 8. A rubber strip 10 is fixedly connected to the surface of the drawing groove 9. A pulling plate 7 is inserted into the surface of the pulling groove 8. The pulling plate 7 has a circular plate-like structure with a "T"-shaped cross-section. One end of the clamping block 12 is fixedly connected to the surface of the pulling plate 7. The clamping block 12 has a "cross"-shaped plate-like structure. The other end of the clamping block 12 is fixedly connected to the surface of the rubber strip 10. The rotating plate 4 has a square plate-like structure, and an arc surface is provided at one end of the rotating plate 4. A rotating groove 20 is formed on the surface of the rotating plate 4. A plurality of card slots 11 distributed in an array are formed on the surface of the rotating groove 20. The card slots 11 are square grooves. One end of the clamping block 12 is embedded in the surface of the card slot 11.

[0026] The rubber strip 10 is provided. The rubber strip 10 has a pulling effect on the clamping block 12, avoiding the clamping block 12 falling off in the card slot 11, and the clamping block 12 is completely embedded in the card slot 11. A pulling plate 7 is provided at one end of the clamping block 12, facilitating the pulling of the completely embedded clamping block 12 to disengage from the card slot 11, so that the rotating plate 4 can rotate on the surface of the limiting plate 6.

[0027] Embodiment Three

[0028] Please refer to Figures 5 and 6 , on the basis of the second embodiment, in order to adjust the height of the extension plate 5, sliding grooves 17 are formed on the surfaces of both ends of the rotating plate 4. A plurality of fixing grooves 18 distributed in an array are formed on the surface of the sliding groove 17. An extension plate groove 2 is formed at the bottom end of the rotating plate 4. The sliding groove 17 communicates with the extension plate groove 2. The extension plate 5 is slidably connected to the surface of the extension plate groove 2. The extension plate 5 has a "C"-shaped plate-like structure. The extension plate 5 is composed of two vertical plates and one horizontal plate. An anti-slip pad 3 is fixedly connected to the surface of the horizontal plate of the extension plate 5. The shaft rod 13 has a cylindrical structure. The shaft rod 13 is slidably connected to the surface of the sliding groove 17. A rubber groove 14 is formed on the surface of the shaft rod 13. A rubber block 15 is fixedly connected to the surface of the rubber groove 14. The surface of the fixing block 16 is fixedly connected to the other end of the rubber block 15. The rubber block 15 is clamped on the surface of the fixing groove 18.

[0029] A plurality of fixing grooves 18 distributed in an array are provided, which can limit and adjust the fixing blocks 16 on the surfaces of shaft rods 13 with different heights. When the extension plate 5 is used as a support and contacts the ground, the anti-slip pad 3 can increase the friction with the ground, making the extension plate 5 more stable. The rubber block 15 is provided to pull the fixing block 16, avoiding the clamping block 12 from loosening and separating from the fixing groove 18.

[0030] When the lever 12 is in the locked position, the lever 12 is in the locked position, and the lever 12 is in the locked position, so that ... so that the lever 12 is in the locked position, and the lever 12 is in the locked position, so that the lever 12 is in the locked position, so that the lever 12 is in the locked position, so that the lever 12 is in the locked position, so that the lever 12 is in the locked position, so that the lever 12 is in the locked

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An NTC thermistor measurement and analysis device, comprising a measuring device body (1), wherein the measuring device body (1) is integrally formed with a plurality of connecting terminals (19), characterized in that: Two groups of limit plates (6) are fixedly connected to the two end surfaces of the measuring device body (1). A clamping block (12) is slidably connected inside the limit plate (6). A rotating plate (4) is rotatably connected to the surface of the limit plate (6). The clamping block (12) is embedded in the surface of the rotating plate (4). An extension plate (5) is slidably connected to one end surface of the rotating plate (4). Shaft rods (13) are fixedly connected to the two end surfaces of the extension plate (5). A fixing block (16) is inserted on the surface of the shaft rod (13). The fixing block (16) is clamped on the surface of the rotating plate (4) to limit the extension plate (5).

2. The NTC thermistor measurement and analysis device according to claim 1, characterized in that: There are two limit plates (6) in each group. The limit plate (6) has a circular plate-like structure with a "T"-shaped cross-section. A drawing groove (9) is formed on the surface of the limit plate (6). The drawing groove (9) is a "cross"-shaped groove. A pulling groove (8) is formed on the end surface of the limit plate (6) away from the measuring device body (1). The drawing groove (9) communicates with the pulling groove (8). A rubber strip (10) is fixedly connected to the surface of the drawing groove (9).

3. The NTC thermistor measurement and analysis device according to claim 2, characterized in that: A pulling plate (7) is inserted on the surface of the pulling groove (8). The pulling plate (7) has a circular plate-like structure with a "T"-shaped cross-section. One end of the clamping block (12) is fixedly connected to the surface of the pulling plate (7). The clamping block (12) has a "cross"-shaped plate-like structure. The other end of the clamping block (12) is fixedly connected to the surface of the rubber strip (10).

4. The NTC thermistor measurement and analysis device according to claim 1, characterized in that: The rotating plate (4) has a square plate-like structure, and one end of the rotating plate (4) is provided with an arc surface. A rotating groove (20) is formed on the surface of the rotating plate (4). A plurality of card slots (11) distributed in an array are formed on the surface of the rotating groove (20). The card slot (11) is a square slot. One end of the clamping block (12) is embedded in the surface of the card slot (11).

5. The NTC thermistor measurement and analysis device according to claim 1, characterized in that: Sliding grooves (17) are formed on the two end surfaces of the rotating plate (4). A plurality of fixing grooves (18) distributed in an array are formed on the surface of the sliding groove (17). An extension plate groove (2) is formed at the bottom end of the rotating plate (4). The sliding groove (17) communicates with the extension plate groove (2). The extension plate (5) is slidably connected to the surface of the extension plate groove (2). The extension plate (5) has a "C"-shaped plate-like structure and is composed of two vertical plates and one horizontal plate. An anti-slip pad (3) is fixedly connected to the surface of the horizontal plate of the extension plate (5).

6. The NTC thermistor measurement and analysis device according to claim 5, characterized in that: The shaft rod (13) has a cylindrical structure. The shaft rod (13) is slidably connected to the surface of the sliding groove (17). A rubber groove (14) is formed on the surface of the shaft rod (13). A rubber block (15) is fixedly connected to the surface of the rubber groove (14). The surface of the fixing block (16) is fixedly connected to the other end of the rubber block (15). The rubber block (15) is clamped on the surface of the fixing groove (18).

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