A parallel thermocouple structure

Abstract

The utility model discloses a parallel thermocouple structure, which makes the assembly of two thermocouples and a single electromagnetic valve quick and efficient, and ensures the stability and reliability of each connection position. It includes: a solenoid valve, which includes a valve body and an exposed electromagnetic valve connector; a first thermocouple, which includes a first sensing end, a first grounding end, a first conductor, a second connector, a parallel line, and a parallel line connector, the input end of the second connector is respectively connected in parallel to the output ends of the first conductor and the parallel line conductor, the input end of the first conductor is connected to the first sensing end, the input end of the parallel line is installed with a parallel line connector, and the first sensing end is also connected to the first grounding end; and a second thermocouple, which includes a second sensing end, a second grounding end, a third conductor, and a fourth connector, the second sensing end is connected to the input end of the third conductor, the output end of the third conductor is installed with a fourth connector, and the second sensing end is also connected to the second grounding end.

Description

Technical Field

[0001] The utility model relates to the technical field of thermocouple assembly, in particular to a parallel thermocouple structure. Background Art

[0002] The solenoid valve in the thermoelectric gas flameout protection device can cut off the gas source in time after the gas equipment accidentally flames out. The flameout protection device of the mainstream gas equipment on the market is mainly composed of a solenoid valve and a thermocouple.

[0003] The existing conventional technology is to tap the copper base of the solenoid valve and set a nut on the thermocouple end. When the two are locked, the center signal line contact is pressed to connect the solenoid valve and the thermocouple. This connection structure has operating space when a single solenoid valve and a single thermocouple are assembled, but it is not suitable for a structure where one solenoid valve is adapted to two thermocouples.

[0004] Therefore, it is urgent to find a reliable and convenient assembly structure of two thermocouples and a solenoid valve.

[0005] This solution solves the application of one solenoid valve with two thermocouples. The two thermocouples are respectively assembled on different burners, and the two burners will not be used at the same time. Summary of the invention

[0006] In response to the above problems, the utility model provides a parallel thermocouple structure, which makes the assembly of the thermocouple and a single solenoid valve quick and efficient, ensures the stability and reliability of each connection position, ensures the reliable and stable operation of the thermoelectric potential gas flameout protection device, greatly reduces costs and reduces the usage space, and improves production efficiency and after-sales convenience and efficiency.

[0007] A parallel thermocouple structure, characterized in that it includes:

[0008] A solenoid valve, comprising a valve body and an exposed solenoid valve connector;

[0009] A first thermocouple, comprising a first sensing end, a first grounding end, a first conductor, a second joint, a parallel line, and a parallel line joint, wherein the input end of the second joint is respectively connected in parallel to the output ends of the first conductor and the parallel line, the input end of the first conductor is connected to the first sensing end, the input end of the parallel line is equipped with the parallel line joint, and the first sensing end is also connected to the first grounding end;

[0010] and a second thermocouple, comprising a second sensing end, a second grounding end, a third conductor, and a fourth joint, wherein the second sensing end is connected to the input end of the third conductor, the output end of the third conductor is provided with the fourth joint, and the second sensing end is also connected to the second grounding end;

[0011] The solenoid valve connector and the second connector are plugged into each other to form a first docking assembly, and the parallel line connector and the fourth connector are docked to form a second docking assembly;

[0012] The first sensing end and the second sensing end are used to be placed in corresponding furnace head area positions, and the first docking component and the second docking component are both placed in a non-high temperature environment area.

[0013] It is further characterized by:

[0014] The second connector, the parallel line connector, and the fourth connector all include an external protective shell and an internal plug-in component;

[0015] The first conductor, the parallel conductor and the third conductor are all sheathed wire structures, and the sheathed wire structure includes a central metal core and a peripheral sheath to ensure stable and reliable conduction;

[0016] The solenoid valve connector is a male connector, which is a plug-in column;

[0017] The plug-in piece of the parallel line is a hybrid connector, which includes a lower female connector and an upper parallel connector. The lower female connector is an externally convex compression slot structure for connecting the solenoid valve connector, and the upper parallel connector is used to connect the corresponding metal cores of the first conductor and the second conductor respectively, which ensures stable and reliable connection;

[0018] The internal plug-in component of the parallel line is a female plug structure, specifically a plug spring structure;

[0019] The internal plug-in component of the fourth connector is a male plug structure, specifically a plug-in sheet or a plug-in column structure;

[0020] The first sensing end is electrically connected to the first ground end through a first connecting line;

[0021] The second sensing end is electrically connected to the second ground end through a second connecting line.

[0022] After adopting the above technical scheme, the input end of the parallel line is respectively connected in parallel to the output ends of the first conductor and the second conductor. Since the first conductor is connected to the first sensing end, the second sensing end is connected to the parallel line conductor through the second docking component, and the solenoid valve connector and the second connector of the solenoid valve are combined and plugged in, it allows the two groups of thermocouples to be quickly connected in parallel to the solenoid valve by plugging; it makes the assembly of the thermocouple and the single solenoid valve quick and efficient, and ensures the stability and reliability of each connection position, ensuring the reliable and stable operation of the thermoelectric potential gas flameout protection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the connection structure of the utility model;

[0024] Figure 2It is a front view of a first thermocouple of the utility model;

[0025] Figure 3 It is a front view of the second thermocouple of the utility model;

[0026] Figure 4 This is a front view of the solenoid valve of the utility model;

[0027] The names of the corresponding serial numbers in the figure are as follows:

[0028] Solenoid valve 10, valve body 11, solenoid valve connector 12, first thermocouple 20, first sensing end 21, first grounding terminal 22, first conductor 23, second connector 24, first external protective shell 241, first internal plug-in component 242, upper parallel connector 2422, parallel line conductor 25, parallel line connector 26, second external protective shell 261, second internal plug-in component 262, first connecting wire 27, second thermocouple 30, second sensing end 31, second grounding terminal 32, third conductor 33, fourth connector 34, third external protective shell 341, third internal plug-in component 342, second connecting grounding wire 35, first docking assembly 40, second docking assembly 50. DETAILED DESCRIPTION

[0029] A parallel thermocouple structure, see Figure 1-Figure 4 , which includes a solenoid valve 10, a first thermocouple 20, and a second thermocouple 30;

[0030] The solenoid valve 10 includes a valve body 11 and an exposed solenoid valve connector 12;

[0031] The first thermocouple 20 includes a first sensing end 21, a first grounding end 22, a first conductor 23, a second joint 24, a parallel wire conductor 25, and a parallel wire joint 26. The input end of the second joint 24 is respectively connected in parallel to the output ends of the first conductor 23 and the parallel wire conductor 25. The input end of the first conductor 23 is connected to the first sensing end 21. The input end of the parallel wire conductor 25 is equipped with the parallel wire joint 26. The first sensing end 21 is electrically connected to the first grounding end 22 via a first connecting line 27.

[0032] The second thermocouple 30 includes a second sensing end 31, a second grounding end 32, a third conductor 33, and a fourth joint 34. The second sensing end 31 is connected to the input end of the third conductor 33, the output end of the third conductor 33 is provided with the fourth joint 34, and the second sensing end is electrically connected to the second grounding end 32 via a second connecting line 35.

[0033] The solenoid valve connector 12 and the second connector 24 are plugged together to form a first docking assembly 40, and the parallel line connector 26 and the fourth connector 34 are docked together to form a second docking assembly 50;

[0034] The first sensing end 21 and the second sensing end 31 are used to be placed in the corresponding furnace head area, and the first docking assembly 40 and the second docking assembly 50 are both placed in a non-high temperature environment area.

[0035] Specifically, the second connector 24 includes a first external protective shell 241 and a first internal plug-in component 242 , the parallel line connector 26 includes a second external protective shell 261 and a second internal plug-in component 262 , and the fourth connector 34 includes a third external protective shell 341 and a third internal plug-in component 342 .

[0036] In a specific embodiment, the first grounding terminal 22 is fixedly placed on the outer surface of the first outer protective shell 241 and fits the metal grounding part of the connection device, and the second grounding terminal 32 is fixedly connected to the metal grounding part of the connection device by an external screw;

[0037] The first conductor 23, the parallel conductor 25, and the third conductor 33 are all sheathed wire structures, and the sheathed wire structure includes a central metal core and a peripheral sheath to ensure stable and reliable conduction;

[0038] The solenoid valve connector 12 is a male connector, which is a plug-in column;

[0039] The first internal plug-in component 242 of the second connector 24 is a hybrid connector, and the upper parallel connector 2422 is used to connect the corresponding metal cores of the first conductor 23 and the parallel line conductor 25, respectively, to ensure stable and reliable connection;

[0040] The second internal plug-in component 262 of the parallel line connector 26 is a female plug structure, specifically a plug spring structure;

[0041] The third internal plug-in component 342 of the fourth connector 34 is a male connector structure, specifically a plug-in sheet or a plug-in column structure.

[0042] The input end of the second connector 24 is connected in parallel to the output ends of the first conductor 23 and the parallel conductor 25, respectively. Since the first conductor 23 is connected to the first sensing end 21, the second sensing end 31 is connected to the parallel conductor 25 through the second docking assembly 50, the solenoid valve connector 12 and the second connector 24 of the solenoid valve 10 are assembled and plugged in, which enables the two sets of thermocouples to be quickly connected in parallel to the solenoid valves by plugging; it makes the assembly of the thermocouples and the single solenoid valve quick and efficient, and ensures the stability and reliability of each connection position, thereby ensuring the reliable and stable operation of the thermoelectric potential gas flameout protection device.

[0043] Its working principle is as follows: the valve body of the solenoid valve is mainly composed of a copper shaft, a base, a coil, an electromagnet, an electromagnetic sheet, a bracket, a signal line needle, a spring, and a sealing gasket. When the coil on the electromagnet is passed through an electric current, a magnetic field will be generated, which will attract the electromagnetic sheet and then link it to the sealing gasket on the copper shaft to achieve the purpose of opening and maintaining the gas passage; when the current disappears or becomes smaller, the sealing gasket returns to its position under the action of the spring to achieve the purpose of closing the gas passage;

[0044] The first thermocouple conducts a first current when the burner is burning, and the second thermocouple conducts a second current when the corresponding burner is burning. Since the two thermocouples are connected in parallel to the solenoid valve, the first and second thermocouples can be switched at any time when the solenoid valve is ventilated.

[0045] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0046] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A parallel thermocouple structure, characterized in that: It includes: A solenoid valve, comprising a valve body and an exposed solenoid valve connector; A first thermocouple, comprising a first sensing end, a first grounding end, a first conductor, a second joint, a parallel line, and a parallel line joint, wherein the input end of the second joint is respectively connected in parallel to the output ends of the first conductor and the parallel line, the input end of the first conductor is connected to the first sensing end, the input end of the parallel line is equipped with the parallel line joint, and the first sensing end is also connected to the first grounding end; and a second thermocouple, comprising a second sensing end, a second grounding end, a third conductor, and a fourth joint, wherein the second sensing end is connected to the input end of the third conductor, the output end of the third conductor is provided with the fourth joint, and the second sensing end is also connected to the second grounding end; The solenoid valve connector and the second connector are plugged into each other to form a first docking assembly, and the parallel line connector and the fourth connector are docked to form a second docking assembly; The first sensing end and the second sensing end are used to be placed in corresponding furnace head area positions, and the first docking component and the second docking component are both placed in a non-high temperature environment area.

2. A parallel thermocouple structure according to claim 1, characterized in that: The second connector, the parallel line connector and the fourth connector all include an external protective shell and an internal plug-in component.

3. A parallel thermocouple structure according to claim 1, characterized in that: The first conductor, the second conductor and the third conductor are all sheathed wire structures, and the sheathed wire structure includes a central metal core and a peripheral sheath.

4. A parallel thermocouple structure according to claim 1, characterized in that: The solenoid valve connector is a male connector, which is a plug-in column.

5. A parallel thermocouple structure according to claim 4, characterized in that: The internal plug-in component of the second connector is a hybrid connector, which includes a lower female connector and an upper parallel connector. The lower female connector is an externally convex compression slot structure used for connecting the solenoid valve connector, and the upper parallel connector is used to connect the corresponding metal cores of the first conductor and the second conductor respectively.

6. A parallel thermocouple structure according to claim 1, characterized in that: The internal plug-in component of the parallel line connector is a female plug structure, specifically a plug spring structure.

7. A parallel thermocouple structure according to claim 6, characterized in that: The internal plug-in component of the fourth connector is a male connector structure, specifically a plug-in sheet or a plug-in column structure.

8. A parallel thermocouple structure according to claim 1, characterized in that: The first sensing end is electrically connected to the first ground end through a first connecting line.

9. A parallel thermocouple structure according to claim 1, characterized in that: The second sensing end is electrically connected to the second ground end through a second connecting line.

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