CN207881230U - Temperature sensing device, temperature-sensitive water tank and water heater - Google Patents

Abstract

The utility model discloses a temperature sensing device, comprising: a temperature sensing tube, a water pipe head, a sealing ring and a temperature sensing fixed tube; the temperature sensing tube includes a probe end and a fixed end, the temperature sensing fixed tube is provided with a through hole, and one end of the probe end is Extending from the first end of the temperature-sensing fixed tube through the through hole to the second end of the temperature-sensing fixed tube, one end of the probe end and the first end of the temperature-sensing fixed tube form an annular groove, and one end of the probe end is also connected to the fixed end; The sealing ring is provided with a probe hole, one end of the probe end passes through the probe hole, and the second end of the sealing ring clamps the first end of the temperature-sensing fixed tube and one end of the probe end; the water pipe head is arranged between the sealing ring and the temperature-sensing fixed tube Between, the water pipe head fixes the sealing ring and the temperature-sensing fixed pipe. The utility model also discloses a temperature-sensitive water tank and a water heater. Adopting the embodiment of the utility model can strengthen the sealing effect between the temperature sensing device and the inner container and prevent the inner container from leaking.

Description

Temperature sensing device, temperature sensing water tank and water heater

technical field

The utility model relates to the field of water heaters, in particular to a temperature sensing device, a temperature sensing water tank and a water heater.

Background technique

In the prior art, the temperature sensing device on the electric water heater, heat pump water heater or solar water heater usually uses a water pipe head and a temperature sensing tube to realize real-time measurement of the temperature of the water tank of the water heater. The sealing of the water pipe head and the temperature sensing tube is usually connected by a flat gasket, and the sealing effect is achieved by the end faces of the water pipe head and the temperature sensing tube being in close contact with the flat gasket. However, the structure with flat gasket sealing has strict requirements on the tightening torque control. If the torque is too large, the flat gasket will be damaged or the sealing ring will be displaced. In addition, the structure sealed with flat gaskets is not conducive to the assembly of temperature-sensing tubes with air batches during production. If the air batches are over-tightened, the temperature-sensing tubes will damage the flat gaskets, reduce the pass rate and production efficiency, and there are hidden dangers of water leakage.

Utility model content

The purpose of the embodiment of the utility model is to provide a temperature-sensing device, a temperature-sensing water tank and a water heater, which can strengthen the sealing effect between the temperature-sensing device and the inner tank and prevent the inner tank from leaking without using a flat gasket.

Above-mentioned technical problem is solved by following technical scheme:

A temperature-sensing device, comprising: a temperature-sensing tube, a water pipe head, a sealing ring, and a temperature-sensing fixed tube; wherein,

The temperature sensing tube includes a probe end and a fixed end, the temperature sensing fixed tube is provided with a through hole, and one end of the probe end extends from the first end of the temperature sensing fixed tube through the through hole to the sensing tube. The second end of the temperature-fixed tube, one end of the probe end and the first end of the temperature-sensitive fixed tube form an annular groove, and one end of the probe end is also connected to the fixed end;

The sealing ring is provided with a probe hole, the sealing ring is arranged in the annular groove, one end of the probe end passes through the probe hole, and the second end of the sealing ring connects the temperature-sensitive fixed tube The first end is fastened to one end of the probe end;

The water pipe head is arranged between the first end of the sealing ring and the first end of the temperature-sensing fixed pipe, and the water pipe head fixes the sealing ring and the temperature-sensing fixed pipe.

Compared with the background technology, the temperature sensing device described in the utility model has the following beneficial effects:

When the above-mentioned temperature sensing device is connected with the outer wall of the inner tank of the water heater, the sealing ring and the water pipe head are connected to achieve the effect of sealing the inner wall, and then the sealing ring is respectively connected to the temperature sensing tube and the temperature sensing fixed tube to achieve the effect of sealing the end face. It solves the problem in the prior art that the structure using flat gasket seals has strict requirements on tightening torque control and the structure using flat gasket seals is not conducive to the use of air batches to assemble the temperature-sensitive tube during production, and can be installed without using flat gaskets. Strengthen the sealing effect between the temperature sensing device and the inner tank and prevent the inner tank from leaking.

In one of the embodiments, the probe end and the fixed end of the temperature-sensing tube are integrally formed; the temperature-sensing tube and the temperature-sensing fixed tube are integrally formed.

In one of the embodiments, the outer edge of the second end of the water pipe head is provided with a water pipe head thread, and the first end of the water pipe head is used to connect to the outer wall of the inner tank of the water heater.

In one of the embodiments, the cross-sectional area of the first end of the sealing ring is smaller than the cross-sectional area of the second end of the sealing ring.

In one of the embodiments, the cross-sectional area of the fixed end of the temperature sensing tube is larger than the cross-sectional area of one end of the probe end connected to the fixed end.

Above-mentioned technical problem also solves by following technical scheme:

A temperature-sensing water tank is characterized by comprising the temperature-sensing device disclosed in any one of the above-mentioned embodiments.

In one of the embodiments, the temperature-sensing water tank also includes an inner tank, the inner tank is provided with a temperature-sensing hole, the water pipe head of the temperature-sensing device is connected to the outer wall of the inner tank, and the probe of the temperature-sensing tube The other end of the end extends into the inner tank through the temperature sensing hole.

When the temperature-sensing device in the above-mentioned temperature-sensing water tank is connected to the liner in the water tank, the sealing ring and the water pipe head are connected to achieve the sealing effect of the inner wall, and then the temperature-sensing tube and the temperature-sensing fixed tube are respectively connected through the sealing ring to achieve the end surface. sealing effect. It solves the problem in the prior art that the structure using flat gasket seals has strict requirements on tightening torque control and the structure using flat gasket seals is not conducive to the use of air batches to assemble the temperature-sensitive tube during production, and can be installed without using flat gaskets. Strengthen the sealing effect between the temperature sensing device and the inner tank and prevent the inner tank from leaking.

Above-mentioned technical problem also solves by following technical scheme:

A water heater is characterized by comprising the temperature sensing device disclosed in any one of the above embodiments.

Description of drawings

Fig. 1 is a schematic structural diagram of a temperature sensing device provided in Embodiment 1 of the present invention;

Fig. 2 is a structural schematic diagram of a sealing ring in a temperature sensing device provided in Embodiment 1 of the present utility model;

Fig. 3 is a top view of a sealing ring in a temperature sensing device provided in Embodiment 1 of the present utility model;

Fig. 4 is a schematic structural diagram of a temperature-sensitive water tank provided in Embodiment 2 of the present invention;

Fig. 5 is a schematic diagram of the connection between the temperature sensing device and the outer wall of the inner tank in the temperature sensing water tank provided by the second embodiment of the utility model.

Among them, 1. temperature-sensing tube; 2. water pipe head; 3. sealing ring; 4. temperature-sensing fixed tube; 10. temperature-sensing device; 20. liner.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

In the description of the present utility model, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present utility model. The terminology used in the description of the utility model herein is only for the purpose of describing specific embodiments, and is not intended to limit the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. In addition, the orientations or positional relationships indicated by the terms "left", "right", "upper", "lower", "inner" and so on are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention. In addition, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be fixed connection, detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection, It can also be indirectly connected through an intermediary, and it can be the internal communication of two elements. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations. In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not constitute conflicts with each other.

Embodiment one

Referring to Fig. 1, Fig. 1 is a schematic structural diagram of a temperature sensing device provided by Embodiment 1 of the present utility model; it includes: a temperature sensing tube 1, a water pipe head 2, a sealing ring 3 and a temperature sensing fixed tube 4; wherein,

The temperature-sensing tube 1 includes a probe end 11 and a fixed end 12. The temperature-sensing fixed tube 4 is provided with a through hole, and one end of the probe end 11 passes through the first end 41 of the temperature-sensing fixed tube 4. The through hole extends to the second end 42 of the temperature-sensing fixed tube 4, one end of the probe end 11 and the first end 41 of the temperature-sensing fixed tube 4 form an annular groove, and the probe end 11 One end is also connected to the fixed end 12;

The sealing ring 3 is provided with a probe hole 3a, the sealing ring 3 is arranged in the annular groove, one end of the probe end 11 passes through the probe hole 3a, and the second end 32 of the sealing ring 3 Fasten the first end 41 of the temperature-sensing fixed tube 4 with one end of the probe end 11;

The water pipe head 2 is arranged between the first end 31 of the sealing ring 3 and the first end 41 of the temperature-sensing fixed pipe 4, and the water pipe head 2 fixes the sealing ring 3 and the temperature-sensing fixed pipe. Tube 4 is fixed.

Wherein, the cross-sectional area of the fixed end 12 of the temperature sensing tube 1 is greater than the cross-sectional area of one end of the probe end 11 connected to the fixed end 12 .

Specifically, the temperature sensing device is symmetrical with the temperature sensing tube 1 as the central axis, and the temperature sensing tube 1 is used for detecting temperature. The cross-sectional area of one end of the probe end 11 connected to the fixed end 12 is greater than the cross-sectional area of the other end of the probe end 11, and the cross-sectional area of the fixed end 12 is greater than that connected to the fixed end 12. The cross-sectional area of one end of the probe end 11 makes the cross-sectional area of the two ends of the temperature sensing tube 1 larger, while the cross-sectional area of the middle part is smaller.

Preferably, the probe end 11 and the fixed end 12 of the temperature-sensing tube 1 are integrally formed; the temperature-sensing tube 1 and the temperature-sensing fixed tube 4 are integrally formed. Preferably, the probe end 11 and the fixed end 12 of the temperature sensing tube 1 can also be bonded by glue or other connecting parts, such as welding tools can be used to connect the probe end 11 and the fixed end 11 through copper or solder. Ends 12 are welded together. Preferably, the temperature-sensing tube 1 and the temperature-sensing fixed tube 4 can also be bonded by glue or other connecting parts. The temperature-sensitive fixed pipes 4 are welded together.

Preferably, referring to FIG. 2 and FIG. 3 , the cross-sectional area of the first end 31 of the sealing ring 3 is smaller than the cross-sectional area of the second end 32 of the sealing ring 3 . The sealing ring 3 is also provided with a probe hole 3a, and the probe hole 3a is used to place the temperature-sensing tube 1, so that the probe end 11 of the temperature-sensing tube 1 passes through the probe hole 3a, so that the The temperature sensing tube 1 is fastened.

Preferably, the sealing ring 3 is particularly elastic, and the sealing ring 3 has appropriate mechanical strength, wherein the mechanical strength includes expansion strength, elongation and tear resistance. Preferably, the sealing ring 3 can be made of rubber.

Preferably, both the first end 31 of the sealing ring 3 and the second end 32 of the sealing ring 3 are annular, and the outer diameter 31(1) of the first end 31 of the sealing ring 3 is smaller than the The outer diameter 32(1) of the second end 32 of the sealing ring 3, and the outer diameter 32(1) of the second end 32 of the sealing ring 3 is equal to the outer diameter of the annular groove, so that the sealing The ring 3 can be placed into said circular groove. The inner diameters of the first end 31 of the sealing ring 3 and the second end 32 of the sealing ring 3 are equal, that is, the inner diameter 31(2) of the probe hole 3a as shown in FIG. 3 .

Preferably, the outer edge of the second end 22 of the water pipe head 2 is provided with a water pipe head thread, and the first end 21 of the water pipe head 2 is used to connect to the outer wall of the inner tank of the water heater. Preferably, the inner edge of the first end 41 of the temperature-sensing fixed pipe 4 is provided with a temperature-sensing fixed pipe thread corresponding to the thread of the water pipe head, so as to fix the water pipe head 2 and the temperature-sensing fixed pipe 4, and then The water pipe head 2 and the sealing ring 3 achieve the effect of inner wall sealing, and the sealing ring 3 respectively connects the temperature sensing tube 1 and the temperature sensing fixed tube 4 so as to achieve the effect of end surface sealing.

When the temperature sensing device disclosed in Embodiment 1 of the utility model is connected to the outer wall of the inner tank of the water heater, the seal ring and the water pipe head are connected to achieve the sealing effect of the inner wall, and then the temperature sensing tube and the temperature sensing fixed tube are respectively connected through the seal ring to thereby To achieve the effect of end face sealing. It solves the problem in the prior art that the structure using flat gasket seals has strict requirements on tightening torque control and the structure using flat gasket seals is not conducive to the use of air batches to assemble the temperature-sensitive tube during production, and can be installed without using flat gaskets. Strengthen the sealing effect between the temperature sensing device and the inner tank and prevent the inner tank from leaking.

Embodiment two

Referring to Fig. 4, Fig. 4 is a schematic structural diagram of a temperature-sensing water tank provided by Embodiment 2 of the present utility model; it includes: a temperature-sensing device 10 and an inner container 20;

A temperature-sensing water tank provided in Embodiment 2 of the present utility model includes the temperature-sensing device provided in Embodiment 1 above. Wherein, for the specific structure of the temperature sensing device, reference may be made to the relevant description of the first embodiment above, and details are not repeated here.

Preferably, the inner tank 20 is provided with a temperature sensing hole, the water pipe head 2 of the temperature sensing device 10 is connected to the outer wall of the inner tank, and the other end of the probe end 11 of the temperature sensing tube 1 passes through the sensing hole. The temperature hole extends into the inner tank 20 .

Specifically, referring to FIG. 5, the first end 21 of the water pipe head 2 is connected to the outer wall of the inner container 20. Preferably, the first end 21 of the water pipe head 2 can be connected to the inner container 20 by glue. The outer wall, the first end 21 of the water pipe head 2 can also be welded on the outer wall of the inner tank 20 with a welding tool. When the temperature sensing device 10 starts to work, the temperature sensing tube 1 of the temperature sensing device 10 is in contact with the water in the inner tank 20, and starts to sense the temperature of the water in the inner tank 20, so that the temperature of the water in the inner tank 20 can be measured in real time. The temperature of the water in the inner tank 20.

Different from the temperature sensing device using a flat gasket in the prior art, the temperature sensing device 10 adopted in this embodiment does not need to use a flat gasket, and the sealing effect of the inner wall is achieved through the connection between the sealing ring 3 and the water pipe head 2 , and then respectively connect the temperature-sensing tube 1 and the temperature-sensing fixed tube 4 through the sealing ring to achieve the effect of end face sealing, which can double prevent the water inside the water tank from leaking out, thereby more reliably preventing property damage caused by water leakage. loss and personal injury.

When the temperature-sensing device in the temperature-sensing water tank disclosed in Embodiment 2 of the utility model is connected with the inner tank in the water tank, the sealing ring and the water pipe head are connected to achieve the effect of sealing the inner wall, and then the temperature-sensing tube and the water pipe are respectively connected through the sealing ring. The temperature-sensitive fixed tube achieves the effect of end face sealing. It solves the problem that in the prior art, the structure adopting flat gasket sealing has strict requirements on tightening torque control and the structure adopting flat gasket sealing is not conducive to assembling the temperature sensing tube with air batch during production, and can be installed without using flat gasket Strengthen the sealing effect between the temperature sensing device and the inner tank and prevent the inner tank from leaking.

Embodiment three

A water heater provided in Embodiment 3 of the present invention includes the temperature sensing device provided in Embodiment 1 above. Wherein, for the specific structure of the temperature sensing device, reference may be made to the relevant description of the first embodiment above, and details are not repeated here.

Preferably, the water heater may be an electric water heater, a heat pump water heater, or a solar water heater. Preferably, the temperature sensing device is used to measure the water temperature of the water tank in the water heater in real time.

When the temperature sensing device in the water heater disclosed in the third embodiment of the utility model is connected with the inner tank of the water heater, the seal ring and the water pipe head are connected to achieve the sealing effect of the inner wall, and then the temperature sensing tube and the temperature sensing device are respectively connected through the seal ring. Fix the tube to achieve the effect of end face sealing. It solves the problem in the prior art that the structure using flat gasket seals has strict requirements on tightening torque control and the structure using flat gasket seals is not conducive to the use of air batches to assemble the temperature-sensitive tube during production, and can be installed without using flat gaskets. Strengthen the sealing effect between the temperature sensing device and the inner tank and prevent the inner tank from leaking.

The above is a preferred embodiment of the present utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present utility model, some improvements and modifications can also be made, these improvements and modifications It is also regarded as the protection scope of the present utility model.

Claims (8)

1. A temperature-sensing device, characterized in that, comprising: a temperature-sensing tube (1), a water pipe head (2), a sealing ring (3) and a temperature-sensing fixed tube (4); wherein, The temperature-sensing tube (1) includes a probe end (11) and a fixed end (12), the temperature-sensing fixed tube (4) is provided with a through hole, and one end of the probe end (11) is fixed from the temperature-sensing The first end (41) of the tube (4) extends through the through hole to the second end (42) of the temperature-sensing fixed tube (4), and one end of the probe end (11) is connected to the temperature-sensing fixed tube (4). The first end (41) of the fixed pipe (4) forms an annular groove, and one end of the probe end (11) is also connected to the fixed end (12); The sealing ring (3) is provided with a probe hole (3a), the sealing ring (3) is arranged in the annular groove, and one end of the probe end (11) passes through the probe hole (3a), The second end (32) of the sealing ring (3) clamps the first end (41) of the temperature-sensing fixed tube (4) and one end of the probe end (11); The water pipe head (2) is arranged between the first end (31) of the sealing ring (3) and the first end (41) of the temperature-sensing fixed pipe (4), and the water pipe head (2) Fix the sealing ring (3) and the temperature-sensing fixed tube (4). 2. The temperature sensing device according to claim 1, characterized in that, the probe end (11) and the fixed end (12) of the temperature sensing tube (1) are integrally formed; the temperature sensing tube (1) and The temperature-sensing fixed tube (4) is integrally formed. 3. The temperature sensing device according to claim 1, characterized in that, the outer edge of the second end (22) of the water pipe head (2) is provided with a water pipe head thread, and the first end of the water pipe head (2) End (21) is used for connecting the inner container outer wall of water heater. 4. The temperature sensing device according to claim 1, characterized in that, the cross-sectional area of the first end (31) of the sealing ring (3) is smaller than the second end (32) of the sealing ring (3) of cross-sectional area. 5. The temperature sensing device according to claim 1, characterized in that, the cross-sectional area of the fixed end (12) of the temperature sensing tube (1) is larger than the probe end connected to the fixed end (12) The cross-sectional area of one end of (11). 6. A temperature-sensitive water tank, characterized by comprising the temperature-sensitive device according to any one of claims 1-5. 7. The temperature-sensitive water tank according to claim 6, characterized in that, the temperature-sensitive water tank also includes an inner container (20), the inner container (20) is provided with a temperature-sensitive hole, and the water pipe of the temperature-sensitive device The head (2) is connected to the outer wall of the inner container (20), and the other end of the probe end (11) of the temperature sensing tube (1) extends into the inner container (20) through the temperature sensing hole. 8. A water heater, characterized by comprising the temperature sensing device according to any one of claims 1 to 5.