Grouped thermocouples

Abstract

The utility model provides a group thermocouple. The group thermocouple comprises a junction box, a conductive bus and two thermocouple groups. One end of the conductive bus extends into the junction box, each thermocouple group comprises two thermocouple bodies, the two thermocouple bodies in each thermocouple group are connected in parallel and are electrically connected with one group of wire cores in the conductive bus, and the wiring end of each thermocouple body is fixed with the side wall of the junction box; according to the utility model, the integration level of the thermocouple is improved, convenience can be brought to the use of the thermocouple, in addition, the measurement precision can be improved, and the measurement error can be reduced.

Description

Technical Field

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

[0002] Thermocouples are commonly used temperature measuring elements in temperature measuring instruments. They directly measure temperature and convert temperature signals into thermoelectric potential signals, which are then converted into the temperature of the measured medium through electrical instruments (secondary instruments). In order to improve the accuracy of temperature measurement of the measured medium, it is often necessary to install two thermocouples of the same type, specification and characteristic parameters on the measured medium and use them in parallel, thereby improving the accuracy of temperature measurement of the measured medium and reducing temperature measurement errors. However, since the thermocouples currently used on the market are all independent structures, they have the disadvantage of low thermocouple integration. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a grouped thermocouple, which improves the integration of the thermocouple and can bring convenience to the use of the thermocouple. In addition, it can also improve the measurement accuracy and reduce the measurement error.

[0004] The utility model provides a grouped thermocouple, comprising a junction box, a conductive bus and two groups of thermocouples; one end of the conductive bus extends into the junction box, each group of thermocouples comprises two thermocouple bodies, the two thermocouple bodies in each group of thermocouples are connected in parallel with each other and are electrically connected to one group of wire cores in the conductive bus, and the wiring terminals of each thermocouple body are fixed to the side wall of the junction box.

[0005] The utility model provides two groups of thermocouple groups, and each group of thermocouple groups includes two thermocouple bodies. The two thermocouple bodies in each group of thermocouple groups are connected in parallel with each other, so that the integration of the thermocouples can be improved. In addition, when the two thermocouple bodies in each group of thermocouple groups are used in combination to measure the temperature of the measured medium, it can bring convenience to the use of the thermocouples, improve the measurement accuracy, and reduce the measurement error.

[0006] In a possible implementation, a fixing block is sleeved on the outside of each thermocouple body, the fixing block is fixed to the thermocouple body, and each fixing block is provided with a fixing hole; by adopting this structure, each thermocouple body can be reliably fixed on the component to be temperature measured under the action of the fixing block, and in addition, when the fixing block is fixed to the component to be temperature measured, it can be fixed to the component to be temperature measured by means of screws inserted through the fixing holes.

[0007] In a possible implementation manner, each thermocouple body is circumferentially welded and fixed to a corresponding fixing block by solder; by adopting this structure, each fixing block can be reliably fixed to the thermocouple body.

[0008] In a possible implementation, the junction box is filled with sealant and the opening of the junction box is sealed by the sealant; by adopting this structure, the sealant can reliably seal the junction box, and the connection end of each thermocouple body and the conductive bus can be encapsulated in the junction box.

[0009] In a possible implementation, a fixing plate is provided on one side outer wall of the junction box, and a plurality of bolt holes are provided on the fixing plate; by adopting this structure, the junction box can be reliably fixed to the support member by means of bolts passing through the bolt holes on the fixing plate.

[0010] In a possible embodiment, a reinforcing rib plate is arranged between the middle of the upper end surface of the fixing plate and the middle of the corresponding outer side wall of the junction box, and the reinforcing rib plate is welded and fixed to the fixing plate and the junction box; by setting the reinforcing rib plate, the connection strength between the fixing plate and the junction box can be improved.

[0011] In a possible implementation, one end of the conductive bus extends into the junction box through the bottom of the junction box, a connecting sleeve is fixed on the outer bottom of the junction box, the conductive bus is passed through the connecting sleeve, and the connecting sleeve is used to clamp the conductive bus after being squeezed; by adopting this structure, after the conductive bus is passed through the connecting sleeve and the connecting sleeve is squeezed, the connecting sleeve can achieve reliable fixation of the conductive bus. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the top view structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0014] Figure 3 It is a left-side structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0015] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0016] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0017] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0018] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] See also Figure 1-3 As shown, an embodiment of the present application discloses a grouped thermocouple, including a junction box 1, a conductive bus 2 and two groups of thermocouple groups 3; one end of the conductive bus 2 extends into the junction box 1, and each group of thermocouple groups 3 includes two thermocouple bodies 31, and the two thermocouple bodies 31 in each group of thermocouple groups 3 are connected in parallel to each other and electrically connected to one group of wire cores in the conductive bus 2, and the wiring terminals of each thermocouple body 31 are fixed to the side wall of the junction box 1.

[0020] A fixing block 4 is sleeved on the outside of each thermocouple body 31, and the fixing block 4 is fixed to the thermocouple body 31. Each fixing block 4 is provided with a fixing hole. By adopting this structure, each thermocouple body can be reliably fixed on the component to be temperature measured under the action of the fixing block. In addition, when the fixing block is fixed to the component to be temperature measured, it can be fixed to the component to be temperature measured by means of screws inserted into the fixing holes.

[0021] Each thermocouple body 31 is circumferentially welded and fixed to the corresponding fixing block 4 by means of solder 32 ; by adopting this structure, each fixing block can be reliably fixed to the thermocouple body.

[0022] The junction box 1 is filled with sealant 5 and the opening of the junction box 1 is sealed by the sealant 5; by adopting this structure, the sealant can reliably seal the junction box, and the connection end of each thermocouple body and the conductive bus can be encapsulated in the junction box.

[0023] A fixing plate 11 is provided on one side outer wall of the junction box 1, and a plurality of bolt holes 12 are provided on the fixing plate 11; by adopting this structure, the junction box can be reliably fixed to the support member by means of bolts passing through the bolt holes on the fixing plate.

[0024] A reinforcing rib plate 13 is arranged between the middle of the upper end surface of the fixing plate 11 and the middle of the corresponding outer wall of the junction box 1. The reinforcing rib plate 13 is welded and fixed to the fixing plate 11 and the junction box 1. By setting the reinforcing rib plate, the connection strength between the fixing plate and the junction box can be improved.

[0025] One end of the conductive bus 2 extends into the junction box 1 through the bottom of the junction box 1, a connecting sleeve 14 is fixed on the outer bottom of the junction box 1, the conductive bus 2 is inserted into the connecting sleeve 14, and the connecting sleeve 14 is used to clamp the conductive bus 2 after being squeezed; by adopting this structure, after the conductive bus is inserted into the connecting sleeve and the connecting sleeve is squeezed, the connecting sleeve can realize reliable fixation of the conductive bus.

[0026] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A grouped thermocouple, characterized in that: The invention comprises a junction box (1), a conductive bus (2) and two groups of thermocouple groups (3); one end of the conductive bus (2) extends into the junction box (1); each group of thermocouple groups (3) comprises two thermocouple bodies (31); the two thermocouple bodies (31) in each group of thermocouple groups (3) are connected in parallel to each other and are electrically connected to one group of wire cores in the conductive bus (2); and the wiring end of each thermocouple body (31) is fixed to the side wall of the junction box (1).

2. The grouped thermocouple according to claim 1, characterized in that: A fixing block (4) is sleeved on the outside of each thermocouple body (31), the fixing block (4) is fixed to the thermocouple body (31), and each fixing block (4) is provided with a fixing hole.

3. The grouped thermocouple according to claim 2, characterized in that: Each of the thermocouple bodies (31) is fixed to the corresponding fixing block (4) by circumferential welding via solder (32).

4. The grouped thermocouple according to claim 1, characterized in that: The junction box (1) is filled with sealant (5), and the opening of the junction box (1) is sealed by the sealant (5).

5. The grouped thermocouple according to any one of claims 1 to 4, characterized in that: A fixing plate (11) is provided on one side outer wall of the junction box (1), and a plurality of bolt holes (12) are provided on the fixing plate (11).

6. The grouped thermocouple according to claim 5, characterized in that: A reinforcing rib plate (13) is provided between the middle portion of the upper end surface of the fixing plate (11) and the middle portion of the corresponding outer side wall of the junction box (1); the reinforcing rib plate (13) is welded and fixed to the fixing plate (11) and the junction box (1).

7. The grouped thermocouple according to any one of claims 1 to 4, characterized in that: One end of the conductive bus (2) extends into the junction box (1) through the bottom of the junction box (1); a connecting sleeve (14) is fixed on the outer bottom of the junction box (1); the conductive bus (2) is inserted into the connecting sleeve (14); and the connecting sleeve (14) is used to clamp the conductive bus (2) after being squeezed.

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