CN201844882U - Watertight temperature sensor - Google Patents
Watertight temperature sensor Download PDFInfo
- Publication number
- CN201844882U CN201844882U CN2010205891442U CN201020589144U CN201844882U CN 201844882 U CN201844882 U CN 201844882U CN 2010205891442 U CN2010205891442 U CN 2010205891442U CN 201020589144 U CN201020589144 U CN 201020589144U CN 201844882 U CN201844882 U CN 201844882U
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- metal shell
- silicone tube
- signal line
- section
- liquid level
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Abstract
The utility model relates to a watertight temperature sensor, which comprises a thermistor, a metal shell, two temperature signal lines and a liquid level signal line, wherein the temperature signal line is used for outputting signals. The thermistor is arranged in the metal shell and connected with the two temperature signal lines, one side of the thermistor and one side of each of the two temperature signal lines are cast in the metal shell through epoxy resin, a shoulder, a threaded shaft section and a connecting shaft section are sequentially arranged on one side of the metal shell facing an opening end, one side of a silicone tube is sleeved on the connecting shaft section of the metal shell, a nut is screwed on the threaded shaft section of the metal shell and is crimped on the shoulder of the metal shell through a base of the liquid level signal line, a fixed sleeve sleeved on the silicon tube is also screwed onto the threaded shaft section of the metal shell, a rear cover of the fixed sleeve is crimped on a shoulder of the silicon tube, and the liquid level signal line comprises the base, a transitional section extending from the base to the silicone tube, an elastic section spirally wound on the periphery of the silicon tube and a leading-out section. The watertight temperature sensor is reasonable in structure, waterproof property of the temperature sensor can be improved, and service life thereof can be prolonged.
Description
Technical field
The utility model relates to a kind of water proof type temperature sensor, belongs to the temperature sensor technical field.
Background technology
Temperature sensor mainly is made of thermistor, the temperature signal line that plays induction and the metal shell of protective effect and unofficial biography signal and liquid level signal line etc.Be used to be installed on the big-and-middle-sized soy bean milk making machine temperature sensor in order to control soya-bean milk heating-up temperature.But its actual working environment of this temperature sensor is more special, temperature sensor is installed by a silicone tube and is suspended on the top cover of soy bean milk making machine, duty is that temperature sensor all immerses below the soya-bean milk liquid level, and temperature sensor does not adopt hard connection to fix, but owing to adopt silicone tube to be suspended on meeting Free Slosh in the high warm milk, and local when temperature is the highest above 100 ℃, easily be attached to the temperature sensor surface after the heating soybean milk in addition, even fouling, can cause temperature sensor localized hyperthermia.Moreover, the working temperature of temperature sensor is an alternation, sometimes be normal temperature, sometimes be high temperature, and traditional temperature sensor is that the part that two temperature signal lines are connected with thermistor can be fixed in the metal shell by epoxy resin, temperature sensor in the work is directly to drop in the water, rely on the encapsulation of epoxy resin to play sealing function, but epoxy resin, metal shell and lead shell are because of the expansion coefficient difference of material, can produce internal stress down at alternating temperature-changing, cause the bonding properties variation gradually between different materials, therefore can not stop fully that moisture and moisture infiltrate to temperature sensor inside along metal shell and wire sleeve, because thermistor is non-watertight, when thermistor is subjected to moisture effects, can produce parameter error, even operational failure.On the other hand, soya-bean milk behind the high temperature does not fall with scour without sediment motion, because easy cleaning not, need instrument to scrub, can make mechanical external forces such as temperature sensor can be drawn, drags, extruding in this process, also can make the seals damaged of temperature sensor, destroy water resistance, cause the serviceable life of temperature sensor and the reduction of functional reliability.
Summary of the invention
The purpose of this utility model provides a kind of rational in infrastructure, can improve the water proof type temperature sensor of water resistance.
The utility model is that the technical scheme that achieves the above object is: a kind of water proof type temperature sensor, comprise thermistor, the temperature signal line of metal shell and unofficial biography signal and liquid level signal line, described thermistor is arranged in the metal shell and with the two temperatures signal wire and is connected, one side of thermistor and two temperatures signal wire uses poured with epoxy resin in metal shell, it is characterized in that: described metal shell is provided with the shaft shoulder successively towards openend one side, threaded shaft section and connection shaft part, one side of silicone tube is sleeved on the connection shaft part of metal shell, nut is screwed in the threaded shaft section of metal shell and the base by the liquid level signal line is crimped on the shaft shoulder of metal shell, be enclosed within fixed cover on the silicone tube and also be screwed in the threaded shaft section of metal shell, and its bonnet is crimped on the shaft shoulder of silicone tube, and described liquid level signal line comprises base, extend to the transition section of silicone tube from base, and spiral is around the stretch section and the section of drawing of silicone tube periphery.
The utility model is that another technical scheme that achieves the above object is: a kind of water proof type temperature sensor, comprise thermistor, the temperature signal line of metal shell and unofficial biography signal and liquid level signal line, described thermistor is arranged in the metal shell and with the two temperatures signal wire and is connected, one side of thermistor and two temperatures signal wire uses poured with epoxy resin in metal shell, it is characterized in that: described metal shell is provided with the shaft shoulder successively towards openend one side, threaded shaft section and connection shaft part, one side of silicone tube is sleeved on the connection shaft part of metal shell, being enclosed within threaded shaft section and its bonnet that fixed cover on the silicone tube is screwed in metal shell is crimped on the shaft shoulder of silicone tube, the front end face of fixed cover is crimped on the shaft shoulder of metal shell by the base of liquid level signal line, and described liquid level signal line comprises base, extend to the transition section of silicone tube and spiral the stretch section and the section of drawing from base around the silicone tube periphery.
Wherein: the connection shaft part of described metal shell is served as reasons big to little conical section, and connects shaft part and be provided with bulge loop, and the connecting hole of silicone tube is a taper hole, is provided with annular groove in the taper hole, and the bulge loop that connects shaft part is arranged in the silicone tube annular groove.
The base of described liquid level signal line is a ring-type.
The utility model adopts the technique effect after the technique scheme to be:
1, metal shell of the present utility model is provided with thread segment, therefore can be screwed on the thread segment of metal shell by nut or fixed cover and be crimped on the shaft shoulder of silicone tube, make silicone tube can be sealedly connected on the openend of metal shell, because silicone tube is to be enclosed within on the temperature signal line, by silicone tube part metals shell and two temperatures signal wire are sealed, by silicone tube the temperature signal line is caused the installation of soy bean milk making machine caping end, owing to no longer rely on epoxy resin that thermistor is sealed, but adopt the silicone tube sealing, fundamentally isolated leaking, the infiltration phenomenon.Play safe waterproof action.
2, the utility model is by metal shell with add the structure that silicone tube seals epoxy resin, temperature signal line, play the effect of complete water proof, and the temperature signal line is to cause machine top control panel in silicone tube, thereby cut off the direct contact between water, soya-bean milk and the epoxy resin fully, silicone tube adopts the food-grade silicone tube, metal shell adopts food-grade 304# stainless steel, has fundamentally guaranteed the safe for drinking of soya-bean milk, has improved the environmental protection characteristic and the soya-bean milk food security grade of product.
3, liquid level signal line of the present utility model by base, extend to the transition section of silicone tube and spiral from base and constitute around the stretch section and the section of drawing of silicone tube periphery, by nut or fixed cover the base of liquid level seat number line is pressed on the shaft shoulder of metal shell, need not welding and just can conveniently the liquid level signal line be connected on the metal shell reliably, simplify mounting process.The utility model is by rubber-like liquid level signal line, make full use of the pliability and the elastic force of stretch section, no matter temperature sensor is installed in any position of soy bean milk making machine body, and the liquid level signal line can both be connected reliably with metal shell and machine top control panel, and is safe and reliable.During cleaning, temperature sensor drawn, dragged, mechanical external force such as extruding, also can not make the seals damaged of temperature sensor.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 is one of structural representation of the present utility model.
Fig. 2 is two of a structural representation of the present utility model.
Wherein: the 1-thermistor, the 2-metal shell, the 21-shaft shoulder, the 22-threaded shaft section, 23-connects shaft part, 3-temperature signal line, 4-epoxy resin, 5-nut, 6-fixed cover, 61-bonnet, 7-silicone tube, 8-liquid level signal line, 81-base, 82-transition section, 83-stretch section, the 84-section of drawing.
Embodiment
See shown in Figure 1, water proof type temperature sensor of the present utility model, comprise thermistor 1, the temperature signal line 3 of metal shell 2 and unofficial biography signal and liquid level signal line 8, this thermistor 1 adopts negative tempperature coefficient thermistor, thermistor 1 is arranged in the metal shell 2 and with two temperatures signal wire 3 and is connected, one end of two temperatures signal wire 3 is connected with thermistor 1, one side of thermistor 1 and two temperatures signal wire 3 is cast in the metal shell with epoxy resin 4, see shown in Figure 1, the utility model metal shell 2 is provided with the shaft shoulder 21 successively towards openend one side, threaded shaft section 22 and connection shaft part 23, one side of silicone tube 7 is sleeved on the connection shaft part 23 of metal shell 2, the connection shaft part 23 of metal shell 2 of the present utility model is a conical section from large to small, and connect shaft part 23 and be provided with bulge loop, the connecting hole of silicone tube 7 is a taper hole, be provided with annular groove in the taper hole, the bulge loop that connects on the shaft part 23 is arranged in the annular groove of silicone tube 7, nut 5 is screwed in the threaded shaft section 22 of metal shell 2 and the base 81 by liquid level signal line 8 is crimped on the shaft shoulder 21 of metal shell 2, the base 81 of liquid level signal line 8 is fixed on the shaft shoulder 21 of nut 5 and metal shell 2, be enclosed within fixed cover 6 on the silicone tube 7 and also be screwed in the threaded shaft section 22 of metal shell 2, and its bonnet 61 is crimped on the shaft shoulder of silicone tube 7, silicone tube 7 is sealedly connected on the metal shell 2 nut 5 of the present utility model, fixed cover 6 and metal shell 2 all adopt the food-grade stainless steel to make.See shown in Figure 1, liquid level signal line 8 of the present utility model comprises base 81, extends to the transition section 82 of silicone tube 7 and spiral stretch section 83 and the section of drawing 84 around silicone tube 7 peripheries from base 81, the base 81 of liquid level signal line 8 is a ring-type, by stretch section 83 when temperature sensor drawn, dragged, mechanical external force such as extruding, also can not make the seals damaged of temperature sensor, and the section of drawing 84 is connected with control panel.
Fig. 2 is the water proof type temperature sensor of another kind of structure of the present utility model, comprise thermistor 1, the temperature signal line 3 of metal shell 2 and unofficial biography signal and liquid level signal line 8, thermistor 1 is arranged in the metal shell 2 and with two temperatures signal wire 3 and is connected, one side of thermistor 1 and two temperatures signal wire 3 is cast in the metal shell with epoxy resin 4, metal shell 2 is provided with the shaft shoulder 21 successively towards openend one side, threaded shaft section 22 and connection shaft part 23, one side of silicone tube 7 is sleeved on the connection shaft part 23 of metal shell 2, the connection shaft part 23 of metal shell 2 of the present utility model is a conical section from large to small, and the connection shaft part is provided with bulge loop, the connecting hole of silicone tube 7 is a taper hole, be provided with annular groove in the taper hole, the bulge loop that connects on the shaft part 23 is arranged in the annular groove of silicone tube 7, be enclosed within fixed cover 6 on the silicone tube 7 and be screwed in the threaded shaft section 22 of metal shell 2, and the bonnet 61 of fixed cover 6 is crimped on the shaft shoulder of silicone tube 7, silicone tube 7 is sealedly connected on the metal shell 2, the front end face of fixed cover 6 is crimped on the shaft shoulder 21 of metal shell 2 by the base 81 of liquid level signal line 8, the base 81 of liquid level signal line 8 is fixed on, on the shaft shoulder 21 of fixed cover 6 and metal shell 2, this fixed cover 6 and metal shell 2 all adopt the food-grade stainless steel to make.See shown in Figure 2, liquid level signal line 8 of the present utility model comprises base 81, extend to the transition section 82 of silicone tube 7 from base 81, and spiral is around the stretch section 83 and the section of drawing 84 of silicone tube 7 peripheries, the base 81 of liquid level signal line 8 is a ring-type, working as temperature sensor by stretch section 83 is being drawn, drag, mechanical external forces such as extruding, also can not make the seals damaged of temperature sensor, and the section of drawing 84 is connected with control panel, when liquid level is lower than the bottom of metal shell, liquid level signal reaches control circuit through metal shell and liquid level signal line 8, control circuit is cut off the electricity supply, and realizes preventing dry combustion method.
Claims (6)
1. water proof type temperature sensor, comprise thermistor (1), the temperature signal line (3) of metal shell (2) and unofficial biography signal and liquid level signal line (8), described thermistor (1) is arranged in the metal shell (2) and with two temperatures signal wire (3) and is connected, one side of thermistor (1) and two temperatures signal wire (3) is cast in the metal shell (2) with epoxy resin (4), it is characterized in that: described metal shell (2) is provided with the shaft shoulder (21) successively towards openend one side, threaded shaft section (22) and connection shaft part (23), one side of silicone tube (7) is sleeved on the connection shaft part (23) of metal shell (2), the threaded shaft section (22) that nut (5) is screwed in metal shell (2) also is crimped on the shaft shoulder (21) of metal shell (2) by the base (81) of liquid level signal line (8), be enclosed within fixed cover (6) on the silicone tube (7) and also be screwed in the threaded shaft section (22) of metal shell (2), and its bonnet is crimped on the shaft shoulder of silicone tube (7), and described liquid level signal line (8) comprises base (81), extend to the transition section (82) of silicone tube (7) from base (81), and spiral is around the stretch section (83) and the section of drawing (84) of silicone tube (7) periphery.
2. water proof type temperature sensor according to claim 1, it is characterized in that: the connection shaft part (23) of described metal shell (2) is a conical section from large to small, and connect shaft part (23) and be provided with bulge loop, the connecting hole of silicone tube (7) is a taper hole, be provided with annular groove in the taper hole, the bulge loop that connects on the shaft part (23) is arranged in the annular groove of silicone tube (7).
3. water proof type temperature sensor according to claim 1 is characterized in that: the base (81) of described liquid level signal line (8) is a ring-type.
4. water proof type temperature sensor, comprise thermistor (1), the temperature signal line (3) of metal shell (2) and unofficial biography signal and liquid level signal line (8), described thermistor (1) is arranged in the metal shell (2) and with two temperatures signal wire (3) and is connected, one side of thermistor (1) and two temperatures signal wire (3) is cast in the metal shell (2) with epoxy resin (4), it is characterized in that: described metal shell (2) is provided with the shaft shoulder (21) successively towards openend one side, threaded shaft section (22) and connection shaft part (23), one side of silicone tube (7) is sleeved on the connection shaft part (23) of metal shell (2), being enclosed within threaded shaft section (22) and its bonnet that fixed cover (6) on the silicone tube (7) is screwed in metal shell (2) is crimped on the shaft shoulder of silicone tube (7), the front end face of fixed cover (6) is crimped on the shaft shoulder (21) of metal shell (2) by the base (81) of liquid level signal line (8), and described liquid level signal line (8) comprises base (81), extend to the transition section (82) of silicone tube (7) and spiral stretch section (83) and the section of drawing (84) from base (81) around silicone tube (7) periphery.
5. water proof type temperature sensor according to claim 4, it is characterized in that: the connection shaft part (23) of described metal shell (2) is a conical section from large to small, and connect shaft part (23) and be provided with bulge loop, the connecting hole of silicone tube (7) is a taper hole, be provided with annular groove in the taper hole, the bulge loop that connects on the shaft part (23) is arranged in the annular groove of silicone tube (7).
6. water proof type temperature sensor according to claim 4 is characterized in that: the base (81) of described liquid level signal line (8) is a ring-type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205891442U CN201844882U (en) | 2010-10-28 | 2010-10-28 | Watertight temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205891442U CN201844882U (en) | 2010-10-28 | 2010-10-28 | Watertight temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201844882U true CN201844882U (en) | 2011-05-25 |
Family
ID=44039769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205891442U Expired - Fee Related CN201844882U (en) | 2010-10-28 | 2010-10-28 | Watertight temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201844882U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108981945A (en) * | 2017-06-01 | 2018-12-11 | 日本特殊陶业株式会社 | Sensor |
-
2010
- 2010-10-28 CN CN2010205891442U patent/CN201844882U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108981945A (en) * | 2017-06-01 | 2018-12-11 | 日本特殊陶业株式会社 | Sensor |
| CN108981945B (en) * | 2017-06-01 | 2021-06-18 | 日本特殊陶业株式会社 | Sensor with a sensor element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110525 Termination date: 20151028 |
|
| EXPY | Termination of patent right or utility model |