CN111829568A

CN111829568A - Special temperature conduction device for urea sensor

Info

Publication number: CN111829568A
Application number: CN202010531871.1A
Authority: CN
Inventors: 张炜; 黄新国; 黄李晓
Original assignee: Anhui Gaotewei Power Technology Co ltd
Current assignee: Anhui Gaotewei Power Technology Co ltd
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2020-10-27

Abstract

The invention discloses a special temperature conduction device for a urea sensor, and relates to the technical field of sensors. This special temperature conduction device of urea sensor, including the urea sensor body, elastic ring and heating pipe, the bottom fixed mounting of urea sensor body has the urea pipe, the bottom fixed mounting of urea sensor body has liquid level float branch, the cover is provided with the buoy on the outer wall of liquid level float branch, the mouth of pipe department fixed mounting of heating pipe has the interface piece, interface piece fixed mounting is in the bottom of urea sensor body, fixed mounting has the heating tape in the heating pipe, fixed cover is equipped with the stationary ring circle on the outer wall of heating tape, even fixed mounting has the connecting rod on the outer wall of stationary ring circle. This special temperature conduction device of urea sensor is provided with the heating band at the heating pipe, and the heating band is in the heating pipe, can be even heat, promotes heating conduction effect, simultaneously, realizes the fixed of heating pipe and urea pipe through the elastic ring, conveniently installs and dismantles.

Description

Special temperature conduction device for urea sensor

Technical Field

The invention relates to the technical field of sensors, in particular to a special temperature conduction device for a urea sensor.

Background

As the atmospheric environment deteriorates, national regulations are increasingly demanding on vehicle emissions. SCR aftertreatment systems have found widespread use as effective reductions in nitrogen oxides in exhaust gases. The selective catalytic reduction method is to utilize urea to decompose to generate NH3, and NH3 reacts with NOx under the action of a catalyst so as to reduce the emission of NOx in the tail gas.

The SCR system requires a urea solution storage device, commonly referred to as a urea tank. The urea tank is provided with a urea liquid level sensor which has structures such as a liquid level float supporting rod, a urea pipe and a heating pipe, and meanwhile, the urea tank integrates the functions of measuring the urea liquid level and the temperature and unfreezing and heating the urea liquid.

Traditional special heating pipe of urea sensor, when using, heating element heats outside of the tubes, and the heating is inhomogeneous, is heated not comprehensively, has the not enough phenomenon of heating conduction under low temperature environment, simultaneously, binds heating pipe and urea pipe fixedly through pricking the silk, and the installation is inconvenient with the dismantlement, can't satisfy user's demand.

Disclosure of Invention

The invention provides a special temperature conduction device for a urea sensor, wherein a heating pipe is provided with a heating belt, the heating belt is arranged in the heating pipe, the heating pipe can be uniformly heated, the heating conduction effect is improved, meanwhile, the heating pipe and the urea pipe are fixed through an elastic ring, and the installation and the disassembly are convenient.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a special temperature conduction device of urea sensor, includes urea sensor body, elastic ring and heating pipe, the bottom fixed mounting of urea sensor body has the urea pipe, the bottom fixed mounting of urea sensor body has liquid level float branch, the cover is provided with the buoy on the outer wall of liquid level float branch, the mouth of pipe department fixed mounting of heating pipe has the interface piece, interface piece fixed mounting is in the bottom of urea sensor body, fixed mounting has the heating tape in the heating pipe, fixed cover is equipped with the retaining ring on the outer wall of heating tape, even fixed mounting has the connecting rod on the outer wall of retaining ring, and the connecting rod is kept away from the one end of retaining ring and is fixed with the inner wall of heating pipe, one side fixed mounting of urea sensor body has the plug wire to connect, the plug wire connects through wire and heating tape electric connection.

In order to limit the position of the elastic ring, it is preferable that the outer wall of the heating pipe is attached to the urea pipe, and the outer wall of the heating pipe is provided with a ring groove.

In order to realize the convenient fixation of the heating pipe and the urea pipe, it is preferable that the elastic ring is sleeved on the outer walls of the heating pipe and the urea pipe, and the elastic ring is located in the ring groove.

In order to facilitate opening of the elastic ring, the temperature conduction device special for the urea sensor is preferably provided with an opening at one side of the elastic ring, bulges are welded on the outer side of the elastic ring close to the opening, and circular holes are formed in the bulges.

In order to improve the heat conduction effect of the heating pipe, the heating pipe preferably comprises a metal pipe and a heat conduction silica gel sleeve, and the heat conduction silica gel sleeve is sleeved on the outer wall of the metal pipe.

In order to enable the heat-conducting silica gel sleeve to be stably fixed with the metal tube, it is preferable that the temperature conduction device special for the urea sensor of the present invention is configured such that a plurality of positioning blocks are extended from an outer wall of the metal tube, the plurality of positioning blocks are located in the heat-conducting silica gel sleeve, and the plurality of positioning blocks are in an equilateral trapezoid shape.

The invention provides a special temperature conduction device for a urea sensor. The method has the following beneficial effects:

(1) this special temperature conduction device of urea sensor installs in heating band and the heating tube for heating that the heating tube can be even promotes heating conduction effect, through the heat conduction silica gel cover that sets up, can promote the heat conductivility of heating tube, also can promote the security of heating tube.

(2) This special temperature conduction device of urea sensor, the user can break the elastic ring off with the fingers and thumb, overlaps the elastic ring on heating pipe and urea pipe through the opening that sets up, is in the annular with the elastic ring, conveniently realizes the fixed of heating pipe and urea pipe, during the dismantlement, can take off the elastic ring, conveniently dismantles.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of a heating tube of the present invention;

FIG. 3 is a schematic view of the installation of the heating belt of the present invention;

FIG. 4 is a cross-sectional view of a heating tube of the present invention;

fig. 5 is a schematic view of an elastic ring of the present invention.

In the figure: 1. a urea sensor body; 2. a urea pipe; 3. a liquid level float strut; 4. a float; 5. an elastic ring; 6. heating a tube; 601. a metal tube; 602. a heat-conducting silica gel sleeve; 7. a plug wire joint; 8. a ring groove; 9. heating the tape; 10. an interface block; 11. a protrusion; 1101. a circular hole; 12. an opening; 13. fixing a ring; 14. a connecting rod; 15. and (5) positioning the blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

Referring to fig. 1-5, the present invention provides a technical solution: a special temperature conduction device for a urea sensor comprises a urea sensor body 1, an elastic ring 5 and a heating pipe 6, wherein a urea pipe 2 is fixedly installed at the bottom of the urea sensor body 1, a liquid level float supporting rod 3 is fixedly installed at the bottom of the urea sensor body 1, a buoy 4 is sleeved on the outer wall of the liquid level float supporting rod 3, an interface block 10 is fixedly installed at the pipe orifice of the heating pipe 6, the interface block 10 is fixedly installed at the bottom of the urea sensor body 1, a heating belt 9 is fixedly installed in the heating pipe 6, a fixed ring 13 is fixedly sleeved on the outer wall of the heating belt 9, connecting rods 14 are uniformly and fixedly installed on the outer wall of the fixed ring 13, and one end of the connecting rod 14 far away from the fixed ring 13 is fixed with the inner wall of the heating pipe 6, one side of the urea sensor body 1 is fixedly provided with a plug wire connector 7, and the plug wire connector 7 is electrically connected with the heating belt 9 through a lead.

In this embodiment: install the heating band 9 and in heating pipe 6, make heating pipe 6 heating that can be even, promote the heating conduction effect, heat conduction silica gel cover 602 through the setting, can promote the heat conductivility of heating pipe 6, also can promote the security of heating pipe 6, the user can break elastic ring 5 off with the fingers and thumb, through opening 12 that sets up with elastic ring 5 cover on heating pipe 6 and urea pipe 2, be in annular 8 with elastic ring 5, conveniently realize the fixed of heating pipe 6 and urea pipe 2, during the dismantlement, elastic ring 5 can be taken off, conveniently dismantle.

Specifically, the outer wall of the heating pipe 6 is attached to the urea pipe 2, and a ring groove 8 is formed in the outer wall of the heating pipe 6.

In this embodiment: when the elastic ring 5 is in the ring groove 8, the elastic ring 5 can be positioned, the elastic ring 5 is prevented from moving up and down, and the stability after installation is improved.

Specifically, the elastic ring 5 is sleeved on the outer walls of the heating pipe 6 and the urea pipe 2, and the elastic ring 5 is located in the ring groove 8.

In this embodiment: can realize fixing heating pipe 6 and urea pipe 2 through elastic ring 5, facilitate the use.

Specifically, an opening 12 is formed in one side of the elastic ring 5, a protrusion 11 is welded on the outer side of the elastic ring 5 close to the opening 12, and a circular hole 1101 is formed in the protrusion 11.

In this embodiment: the protrusion 11 is pulled to open the elastic ring 5, and the elastic ring 5 is sleeved on the heating pipe 6 and the urea pipe 2 through the opening 12.

Specifically, the heating pipe 6 includes a metal pipe 601 and a heat-conducting silicone sleeve 602, and the heat-conducting silicone sleeve 602 is sleeved on the outer wall of the metal pipe 601.

In this embodiment: the heat conduction silica gel cover 602 can improve the temperature conduction effect of the heating pipe 6.

Specifically, a plurality of positioning blocks 15 extend from the outer wall of the metal tube 601, and the positioning blocks 15 are all located in the heat-conducting silicone sleeve 602, and the positioning blocks 15 are all in an equal trapezoid shape.

In this embodiment: through the locating piece 15 that sets up, can increase the joint strength of tubular metal resonator 601 and heat conduction silica gel cover 602, promote stability.

During the use, be in heating zone 9 in heating pipe 6, can be so that the even heating of heating pipe 6, the heat conduction silica gel cover 602 of setting can promote the heat conduction effect of heating pipe 6, when heating pipe 6 is fixed with urea pipe 2, elastic ring 5 can be broken off with the fingers and thumb, opening 12 through seting up, overlap elastic ring 5 on heating pipe 6 and urea pipe 2, make elastic ring 5 be in annular 8, realized the fixed to heating pipe 6 and urea pipe 2, during the dismantlement, can be through the arch 11 that sets up, break off elastic ring 5 with the fingers and thumb, it can to take off, the convenience is dismantled elastic ring 5.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a special temperature conduction device of urea sensor, includes urea sensor body (1), elastic ring (5) and heating pipe (6), its characterized in that: the urea sensor comprises a urea sensor body (1), a urea pipe (2) is fixedly mounted at the bottom of the urea sensor body (1), a liquid level float supporting rod (3) is fixedly mounted at the bottom of the urea sensor body (1), a buoy (4) is sleeved on the outer wall of the liquid level float supporting rod (3), an interface block (10) is fixedly mounted at the pipe orifice of a heating pipe (6), the interface block (10) is fixedly mounted at the bottom of the urea sensor body (1), a heating belt (9) is fixedly mounted in the heating pipe (6), a fixing ring (13) is fixedly sleeved on the outer wall of the heating belt (9), a connecting rod (14) is uniformly and fixedly mounted on the outer wall of the fixing ring (13), one end, far away from the fixing ring (13), of the connecting rod (14) is fixed with the inner wall of the heating pipe (6), a plug wire connector (7) is fixedly mounted on one side of, the plug wire connector (7) is electrically connected with the heating belt (9) through a lead.

2. The temperature conduction device special for the urea sensor according to claim 1, characterized in that: the outer wall of the heating pipe (6) is attached to the urea pipe (2), and an annular groove (8) is formed in the outer wall of the heating pipe (6).

3. The temperature conduction device special for the urea sensor according to claim 2, characterized in that: the elastic ring (5) is sleeved on the outer walls of the heating pipe (6) and the urea pipe (2), and the elastic ring (5) is located in the annular groove (8).

4. The temperature conducting device special for the urea sensor according to claim 3, wherein: opening (12) have been seted up to one side of elastic ring (5), the outside of elastic ring (5) is close to opening (12) and all welds arch (11), round hole (1101) have been seted up in arch (11).

5. The temperature conduction device special for the urea sensor according to claim 1, characterized in that: heating pipe (6) include tubular metal resonator (601) and heat conduction silica gel cover (602), heat conduction silica gel cover (602) cover is located on the outer wall of tubular metal resonator (601).

6. The temperature conduction device special for the urea sensor according to claim 5, wherein: a plurality of positioning blocks (15) extend from the outer wall of the metal pipe (601), the positioning blocks (15) are located in the heat-conducting silica gel sleeve (602), and the positioning blocks (15) are in an equal trapezoid shape.