CN217276539U

CN217276539U - Electronic water temperature sensor

Info

Publication number: CN217276539U
Application number: CN202221121176.9U
Authority: CN
Inventors: 李期移; 韩秋芸; 谭玉保; 谭路芳; 董礼平
Original assignee: Hunan Sanye Electromechanical Co ltd
Current assignee: Hunan Sanye Electromechanical Co ltd
Priority date: 2022-05-11
Filing date: 2022-05-11
Publication date: 2022-08-23
Anticipated expiration: 2032-05-11

Abstract

The utility model provides an electronic type temperature sensor, which comprises a housin, the casing includes temperature sensing pole, nut dish and threaded connection section, be equipped with the cavity in the temperature sensing pole, the cavity tip is equipped with thermistor, thermistor is connected with the lead-out wire, fixed cover is worn to establish by the lead-out wire, fixed cover includes loop bar and pullover, spacing mouth has been seted up at the loop bar middle part, the lead-out wire is equipped with spacing festival in spacing mouthful department, loop bar one end is equipped with spacing dish, spacing dish supports thermistor, the utility model discloses can effectively improve the leakproofness of sensor, increase of service life can carry on spacingly to thermistor through setting up loop bar, pullover simultaneously to avoid thermistor to shift and reduce the temperature measurement sensitivity.

Description

Electronic water temperature sensor

Technical Field

The utility model relates to a sensor especially relates to an electronic type temperature sensor.

Background

The existing electronic water temperature sensor is easily corroded by a detection medium in the using process, so that internal faults occur and the service life is shortened;

the thermistor has poor fixing effect, and the thermistor generates displacement after long-time use, so that the distance between the thermistor and the detection end is changed, the temperature measurement sensitivity is reduced, and the detection precision is reduced.

SUMMERY OF THE UTILITY MODEL

In view of the above, an electronic water temperature sensor is provided, which comprises a housing, the housing comprising a temperature sensing rod, a nut plate and a threaded connection section, a cavity is arranged in the temperature sensing rod, a thermistor is arranged at the end part of the cavity and is connected with the outgoing line, the outgoing line penetrates through the fixed sleeve, the fixed sleeve comprises a sleeve rod and a sleeve head, the middle part of the sleeve rod is provided with a limit opening, the outgoing line is provided with a limit joint at a limit opening, one end of the loop bar is provided with a limit disc, the limit disc is propped against the thermistor, the other end of the loop bar is fixedly connected with an internal thread sleeve of the loop head through threads, an external thread sleeve of the loop head is fixedly connected with the thread connecting section, the sleeve head is characterized in that the other end of the sleeve head is also provided with a ring wall, a sealing sleeve is arranged in the ring wall, the end part of the ring wall is fixedly connected with the sealing disc through threads, and a wire passing hole is reserved in the middle of the sealing sleeve and the sealing disc.

As a further improvement of the above scheme:

preferably, a first sealing groove and a second sealing groove are arranged on the threaded connection section.

Preferably, a first sealing ring is sleeved in the first sealing groove, and a second sealing ring is sleeved in the second sealing groove.

Preferably, the nut plate is a hexagonal nut.

Preferably, the limiting joint is a single joint formed by winding the outgoing line.

Preferably, the internal thread sleeve extends into the threaded connection section, and the external diameter of the internal thread sleeve is matched with the internal diameter of the threaded connection section.

Preferably, one end of the sealing sleeve is provided with a conical cavity, the conical cavity is matched with the end part of the sleeve rod, and the sleeve rod extends into the conical cavity.

Compared with the prior art, the beneficial effects of the utility model are that:

the other end of the loop bar is fixedly connected with the internal thread sleeve of the loop head through threads, so that the loop bar is fixedly connected with the loop head, the external thread sleeve of the loop head is fixedly connected with the thread connecting section, so that the loop head is fixedly connected with the shell, the thermistor is limited, the heat exchange efficiency is prevented from being reduced after the thermistor is displaced, and the sensitivity of temperature detection is prevented from being reduced;

through set up first seal groove and second seal groove at the threaded connection section and can seal between cover head and the threaded connection section, can seal the loop bar tip through the toper cavity that stretches into the sleeve gasket with the loop bar, further seal between lead-out wire and the sealed dish through crossing the line hole of sleeve gasket to can improve the whole sealed effect, thereby avoid internal corrosion, improve life.

Drawings

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

Fig. 2 is an explosion structure diagram of the present invention.

Fig. 3 is a cut-away view of fig. 2.

In the figure: 1. a housing; 2. a nut plate; 3. sleeving heads; 4. an annular wall; 5. an outgoing line; 6. a first seal groove; 7. a threaded connection section; 8. a second seal groove; 9. a first seal ring; 10. a second seal ring; 11. a thermistor; 12. a limiting disc; 13. a loop bar; 14. a limiting port; 15. sealing sleeves; 16. sealing the disc; 17. a wire passing hole; 18. an external thread sleeve; 19. an internal thread sleeve; 20. a tapered cavity.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

referring to fig. 1-3, an electronic water temperature sensor comprises a housing 1, wherein the housing 1 comprises a temperature sensing rod, a nut disc 2 and a threaded connection section 7, a cavity is arranged in the temperature sensing rod, a thermistor 11 is arranged at the end of the cavity, the thermistor 11 is connected with an outgoing line 5, the outgoing line 5 penetrates through a fixing sleeve, the fixing sleeve comprises a sleeve rod 13 and a sleeve head 3, a limiting opening 14 is formed in the middle of the sleeve rod 13, a limiting joint is arranged at the position of the limiting opening 14 of the outgoing line 5, a limiting disc 12 is arranged at one end of the sleeve rod 13, the limiting disc 12 abuts against the thermistor 11, the other end of the sleeve rod 13 is fixedly connected with an internal thread sleeve 19 of the sleeve head 3 through threads, an external thread sleeve 18 of the sleeve head 3 is fixedly connected with the threaded connection section 7, a ring wall 4 is further arranged at the other end of the sleeve head 3, and a sealing sleeve cover 15 is arranged in the ring wall 4, the end part of the annular wall 4 is fixedly connected with a sealing disc 16 through threads, and a wire passing hole 17 is reserved in the middle of the sealing sleeve 15 and the sealing disc 16; the outgoing line 5 can be limited by arranging the loop bar 13, the loop bar 13 can be fixedly connected with the shell 1 through the loop head 3, and the thermistor 11 is abutted by the limiting disc 12 at the end part of the loop bar 13, so that the thermistor 11 is limited; thereby avoiding the displacement of the thermistor 11 and the reduction of temperature measurement sensitivity; the sleeve rod 13 can be sealed by arranging the sealing sleeve 15, the outgoing line 5 and the sleeve head 3 can be sealed, and the sealing effect is improved.

Be equipped with first seal groove 6 and second seal groove 8 on the threaded connection section 7, can improve the sealed effect between casing 1 and the pullover 3.

First seal groove 6 endotheca is equipped with first sealing washer 9, second seal groove 8 endotheca is equipped with second sealing washer 10, further improves the sealed effect between pullover 3 and casing 1.

The nut plate 2 is a hexagonal nut.

The limiting joint is a single joint formed by winding the outgoing line 5, can limit the distance between the outgoing line 5 and the sleeve rod 13, and avoids displacement between the outgoing line 5 and the sleeve rod 13, so that the consequences of poor contact and the like between the outgoing line 5 and the thermistor 11 are avoided.

The internal thread cover 19 stretches into in the threaded connection section 7, and the external diameter of internal thread cover 19 and the internal diameter adaptation of threaded connection section 7 further improve the sealing performance between pullover 3 and casing 1 to and improve the stability between the body of rod, casing 1 and pullover 3.

One end of the sealing sleeve 15 is provided with a conical cavity 20, the conical cavity 20 is matched with the end part of the sleeve rod 13, the sleeve rod 13 extends into the conical cavity 20, and the sleeve rod 13 is sealed through the sealing sleeve 15.

The principle of the utility model is that a limit opening 14 is arranged in the middle of the loop bar 13, and the outgoing line 5 is made into a single section at the limit opening 14, so that the outgoing line 5 and the loop bar 13 can be limited to avoid the displacement between the outgoing line 5 and the loop bar 13;

a limiting disc 12 is arranged at one end of the sleeve rod 13, and the limiting disc 12 is propped against the thermistor 11, so that no displacement exists between the thermistor 11 and the sleeve rod 13;

the other end of the loop bar 13 is fixedly connected with an internal thread sleeve 19 of the loop head 3 through threads, so that the loop bar 13 is fixedly connected with the loop head 3, an external thread sleeve 18 of the loop head 3 is fixedly connected with the thread connecting section 7, so that the loop head 3 is fixedly connected with the shell 1, the thermistor 11 is limited, the heat exchange efficiency is prevented from being reduced after the thermistor 11 is displaced, and the sensitivity of temperature detection is prevented from being reduced;

can seal between pullout 3 and the threaded connection section 7 through set up first seal groove 6 and second seal groove 8 at threaded connection section 7, can seal loop bar 13 tip through the toper cavity 20 that stretches into sleeve cover 15 with loop bar 13, further seal between lead-out wire 5 and sealed dish 16 through crossing the line hole 17 of sleeve cover 15, thereby can improve the whole sealed effect, thereby avoid internal corrosion, improve life.

Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an electronic type temperature sensor, includes the casing, the casing includes temperature sensing pole, nut dish and threaded connection section, be equipped with the cavity in the temperature sensing pole, the cavity tip is equipped with thermistor, thermistor is connected its characterized in that with the lead-out wire: fixed cover is worn to establish by the lead-out wire, fixed cover includes loop bar and pullover, spacing mouth has been seted up at the loop bar middle part, the lead-out wire is equipped with spacing festival in spacing mouthful department, loop bar one end is equipped with spacing dish, spacing dish supports thermistor, the loop bar other end passes through the internal thread cover fixed connection of screw thread and pullover, the external screw thread cover and the threaded connection section fixed connection of pullover, the pullover other end still is equipped with the rampart, be equipped with the seal cover in the rampart, the rampart tip passes through screw thread and sealed dish fixed connection, the line hole is left at seal cover and sealed dish middle part.

2. The electronic water temperature sensor according to claim 1, wherein: and a first sealing groove and a second sealing groove are arranged on the threaded connection section.

3. The electronic water temperature sensor according to claim 2, wherein: the first seal groove endotheca is equipped with first sealing washer, second seal groove endotheca is equipped with the second sealing washer.

4. The electronic water temperature sensor according to claim 1, wherein: the nut plate is a hexagonal nut.

5. The electronic water temperature sensor according to claim 1, wherein: the limiting joint is a single joint formed by winding the outgoing line.

6. The electronic water temperature sensor according to claim 1, wherein: the internal thread sleeve extends into the threaded connection section, and the outer diameter of the internal thread sleeve is matched with the inner diameter of the threaded connection section.

7. The electronic water temperature sensor according to claim 1, wherein: one end of the sealing sleeve is provided with a conical cavity, the conical cavity is matched with the end part of the sleeve rod, and the sleeve rod extends into the conical cavity.