CN217717573U

CN217717573U - Injection melting point detector

Info

Publication number: CN217717573U
Application number: CN202221001886.8U
Authority: CN
Inventors: 郭辉智; 聂万碧; 王代勇
Original assignee: GUIZHOU JINGFENG INJECTION CO Ltd
Current assignee: GUIZHOU JINGFENG INJECTION CO Ltd
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2022-11-01
Anticipated expiration: 2032-04-27

Abstract

The utility model provides an injection melting point detector, including the casing, the lid, single chip microcomputer control panel, switching power supply, the heater, first copper ring, second copper ring, the thermal resistance sensor, the heating resistance piece, ceramic cylinder, the heating pad, open the heater through single chip microcomputer control panel and control the heating resistance piece and heat the injection, when the injection melts, the injection is in the liquid state, under the effect of gravity, ceramic cylinder downward motion, second copper ring on it contacts with first copper ring, form closed loop circular telegram, single chip microcomputer control panel detects the current signal, and the temperature that thermal resistance sensor to at this moment is down remembered, just can obtain the melting point of injection, do not need to melt through the people for observing the injection, avoided the measuring error that the visual fatigue that people's attention dispersion or long-time observation produced brought.

Description

Injection melting point detector

Technical Field

The utility model belongs to injection melting point check out test set field, concretely relates to injection melting point detector.

Background

The melting point is an important physical property of a crystal substance, the determination of the melting point is one of basic means for determining the purity of a medicine, and how to quickly obtain the temperature of the medicine when the medicine is melted is an important factor influencing the accuracy of the determination of the melting point of the medicine. The existing drug melting point detector has the following problems:

when the melting point of the medicine is detected, whether the medicine is melted needs to be observed artificially, and in the process, because the attention of people is easily dispersed or visual fatigue is easily generated in the long-time observation process, the observation result has errors, and the measurement result of the melting point of the medicine has larger deviation.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in the existing powder injection melting point detection device, whether the injection is melted or not needs to be observed for a long time artificially, and the technical problem that the injection melting point detection is not accurate is easily caused due to the dispersion of the attention of people or the generation of visual fatigue, and the specific scheme is as follows:

the utility model provides an injection melting point detector, includes casing, lid, single chip microcomputer control panel, switching power supply, heater, first copper ring, second copper ring, thermal resistance sensor, heating resistor disc, ceramic cylinder, heating pad, the lid with casing screw connection, single chip microcomputer control panel set up in the casing surface, switching power supply, heater set up in inside the casing, and respectively with single chip microcomputer control panel electricity is connected, the heater still with switching power supply electricity is connected, switching power supply is connected with external power supply electricity, first copper ring, heating pad set up in above the casing, first copper ring cover is located the heating pad is outside, and with single chip microcomputer control panel electricity is connected, thermal resistance sensor set up in the heating pad inside and with single chip microcomputer control panel electricity is connected, heating resistor disc set up in the ceramic cylinder, and with heater electricity is connected, second copper ring nestification in the surface of ceramic cylinder, and with single chip microcomputer control panel electricity is connected, the ceramic cylinder can locate the outside of heating pad.

Further, be equipped with on the casing and be used for thermal-insulated ceramic cushion, first copper ring with the heating pad set up in on the ceramic cushion.

Furthermore, the ceramic cylinder is also provided with a ceramic plate, and the heating resistance sheet is arranged on the ceramic plate.

Further, a ceramic cover is arranged at one end of the ceramic cylinder, and when the ceramic cylinder can be sleeved outside the heating pad, the ceramic cover applies pressure to the ceramic cylinder.

Furthermore, the outer surface of the shell is provided with a starting switch, the starting switch is electrically connected with an external power supply and the switching power supply, and the switching power supply is electrified by pressing the starting switch.

The beneficial effects of the utility model are that:

the heater is started through the single-chip microcomputer control panel to control the heating resistance sheet to heat the injection, when the injection is molten, the injection is in a liquid state, the ceramic cylinder moves downwards under the action of gravity, the second copper ring on the ceramic cylinder is in contact with the first copper ring to form a closed loop to be electrified, the single-chip microcomputer control panel detects a current signal, the temperature of the thermal resistance sensor at the moment is recorded, the melting point of the injection can be obtained, whether the injection is molten or not does not need to be observed manually, and measurement errors caused by visual fatigue due to human attention dispersion or long-time observation are avoided.

Drawings

FIG. 1 is a schematic view of the overall structure of an injection melting point detector;

FIG. 2 is an exploded view of an injection melting point detector;

FIG. 3 is a schematic view of the internal structure of a ceramic cylinder in an injection melting point detector;

FIG. 4 is a cross-sectional view of a ceramic cylinder of an injection melting point detector;

fig. 5 is a schematic circuit connection diagram of an injection melting point detector.

In the figure: 10. a housing; 11. a cover body; 20. a single chip microcomputer control panel; 21. starting a switch; 22. a switching power supply; 23. a heater; 24. a first copper ring; 25. a second copper ring; 26. a thermal resistance sensor; 27. heating the resistance card; 30. a ceramic cushion; 31. a ceramic cylinder; 32. a ceramic cover; 33. a heating pad; 34. and (6) ceramic plates.

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.

As shown in fig. 1, 2 and 5, an injection melting point detector includes a casing 10, a cover 11, a single chip microcomputer control panel 20, a switching power supply 22, a heater 23, a first copper ring 24, a second copper ring 25, a thermal resistance sensor 26, a heating resistor 27, a ceramic cylinder 31 and a heating pad 33, wherein the cover 11 is connected with the casing 10 by screws, the single chip microcomputer control panel 20 is disposed on the outer surface of the casing 10, the switching power supply 22 and the heater 23 are disposed inside the casing 10 and are electrically connected with the single chip microcomputer control panel 20, respectively, the heater 23 is further electrically connected with the switching power supply 22, the switching power supply 22 is electrically connected with an external power supply, the first copper ring 24 and the heating pad 33 are disposed on the upper surface of the casing 10, the first copper ring 24 is sleeved outside the heating pad 33 and is electrically connected with the single chip microcomputer control panel 20, the thermal resistance sensor 26 is disposed inside the heating pad 33 and is electrically connected with the single chip microcomputer control panel 20, the heating resistor 27 is disposed inside the ceramic cylinder 31 and is electrically connected with the heater 23, the second copper ring 25 is nested on the outer surface of the ceramic cylinder 31 and is sleeved outside of the heating pad 33.

As shown in fig. 1 and 2, a ceramic cushion 30 for thermal insulation is provided on the casing 10, and the first copper ring 24 and the heating mat 33 are provided on the ceramic cushion 30.

As shown in fig. 3 and 4, the ceramic cylinder 31 is further provided with a ceramic sheet 34, and the heating resistor sheet 27 is disposed on the ceramic sheet 34.

As shown in fig. 2, a ceramic cap 32 is provided at one end of the ceramic cylinder 31, and when the ceramic cylinder 31 can be sleeved outside the heating mat 33, the ceramic cap 32 applies pressure to the ceramic cylinder 31.

As shown in fig. 1, 2, and 5, the starting switch 21 is provided on the outer surface of the housing 10, the starting switch 21 is electrically connected to an external power source and the switching power source 22, and the switching power source 22 is energized by pressing the starting switch 21.

The utility model discloses a theory of operation does:

when the melting point of the injection is detected, the powder injection is uniformly coated on a heating pad 33 according to relevant detection rules, a ceramic cylinder 31 is sleeved on the heating pad 33, a starting switch connected with a power switch is pressed, a switch power supply 22 is used for electrifying the whole detector, an instruction is input from a singlechip control panel 20, a heater 23 is used for controlling a heating resistor sheet 27 to generate heat and conducting the heat to a ceramic sheet 34 to heat the injection, a thermal resistor sensor 26 is used for uploading the change of the resistance to the singlechip control panel 20 according to the change of the resistance along with the heat so as to obtain the temperature for heating the injection, when the injection is melted from a powder state, the ceramic cylinder 31 moves downwards under the action of gravity, a second copper ring 25 on the ceramic cylinder is in contact with a first copper ring 24 to form a closed loop for electrifying, the singlechip control panel 20 detects a current signal, and records the temperature corresponding to the thermal resistor sensor 26 at the moment, so that the melting point of the injection can be obtained.

1. In the above, the monolithic computer control panel 20 is used for turning on the heater 23 to control the heating resistor disc 27 to heat the injection, when the injection is molten, the injection is in a liquid state, the ceramic cylinder 31 moves downwards under the action of gravity, the second copper ring 25 on the ceramic cylinder is contacted with the first copper ring 24 to form a closed loop for electrifying, the monolithic computer control panel 20 detects a current signal and records the temperature of the thermal resistance sensor 26 at the moment, the melting point of the injection can be obtained, whether the injection is molten or not needs to be observed manually, and the measurement error caused by visual fatigue due to human attention dispersion or long-time observation is avoided. By arranging the ceramic sheet 34 in the ceramic cylinder 31, the heating resistor sheet 27 transfers heat to the ceramic sheet 34 to heat the injection, so that the heating resistor sheet 27 can be prevented from directly contacting with the injection, and the injection can be prevented from corroding the heating resistor sheet 27 after being used for a long time. By adopting the resistance value of the thermal resistance sensor 26 to change with the temperature change, the melting temperature of the injection agent can be accurately measured, and the method is safe and convenient.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A melting point detector for injection is characterized in that: including casing (10), lid (11), single chip microcomputer control panel (20), switching power supply (22), heater (23), first copper ring (24), second copper ring (25), thermal resistance sensor (26), heating resistor disc (27), ceramic section of thick bamboo (31), heating pad (33), lid (11) with casing (10) screwed connection, single chip microcomputer control panel (20) set up in casing (10) surface, switching power supply (22), heater (23) set up in inside casing (10), and respectively with single chip microcomputer control panel (20) electricity is connected, heater (23) still with switching power supply (22) electricity is connected, switching power supply (22) are connected with external power supply electricity, first copper ring (24), heating pad (33) set up above casing (10), first copper ring (24) cover is located outside heating pad (33), and with single chip microcomputer control panel (20) electricity is connected, thermal resistance sensor (26) set up in inside heating pad (33) and with single chip microcomputer control panel (20) electricity is connected, heating pad (31) electricity is connected in heating pad (31), heating pad (31) electricity is connected with ceramic section of thick bamboo outer surface, heating pad (31) electricity is connected in nesting, heating pad (31) electricity is connected, and is electrically connected with the singlechip control panel (20), and the ceramic cylinder (31) can be sleeved outside the heating pad (33).

2. The apparatus for detecting melting point of injection according to claim 1, wherein: be equipped with on casing (10) and be used for thermal-insulated ceramic cushion (30), first copper ring (24) with heating pad (33) set up in on ceramic cushion (30).

3. The apparatus for detecting melting point of injection according to claim 1, wherein: the ceramic cylinder (31) is further provided with a ceramic plate (34), and the heating resistor disc (27) is arranged on the ceramic plate (34).

4. The apparatus for detecting melting point of injection according to claim 1, wherein: and one end of the ceramic cylinder (31) is provided with a ceramic cover (32), and when the ceramic cylinder (31) can be sleeved outside the heating pad (33), the ceramic cover (32) applies pressure to the ceramic cylinder (31).

5. The melting point detecting apparatus for injection according to any one of claims 1 to 4, wherein: the outer surface of the shell (10) is provided with a starting switch (21), the starting switch (21) is electrically connected with an external power supply and the switch power supply (22), and the starting switch (21) is pressed to electrify the switch power supply (22).