Sensing connector and air conditioning unit

Abstract

The present invention provides a sensing joint and an air-conditioning unit. The sensing joint includes: a connecting seat having a first connection port, a second connection port, and a circulation channel, one end of the circulation channel is communicated with the first connection port, and the other end of the circulation channel is communicated with the second connection port; a connecting head disposed on the connecting seat, the connecting head is connected to the second connection port, and the connecting head is used for connecting with a sensor; a heat conduction component disposed in the circulation channel, and the temperature measuring end of the heat conduction component extends out from the first connection port. Through the technical solution provided by the present application, the problem of complex structure in the prior art can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning devices, and more particularly, to a sensing joint and an air conditioning unit. Background Art

[0002] Currently, an air conditioning unit includes a water-side heat exchanger, a pressure detection module, and a temperature detection module. Among them, the pressure detection module and the temperature detection module are respectively used to detect the pressure and temperature of the fluid in the water-side heat exchanger. Specifically, both the pressure detection module and the temperature detection module need to be connected to the water-side heat exchanger through a sensing joint.

[0003] In the prior art, the pressure detection module and the temperature detection module are two independently provided modules, and a sensing joint can only be connected to one of the sensors in the pressure detection module or the temperature detection module, resulting in a relatively large number of required sensing joints and a relatively complex structure. Therefore, there is a problem of complex structure in the prior art. Summary of the Invention

[0004] The present invention provides a sensing joint and an air conditioning unit to solve the problem of complex structure in the prior art.

[0005] According to one aspect of the present invention, there is provided a sensing joint, which includes: a connecting seat having a first connection port, a second connection port, and a flow passage, one end of the flow passage is communicated with the first connection port, and the other end of the flow passage is communicated with the second connection port; a connecting head disposed on the connecting seat, the connecting head is connected to the second connection port, and the connecting head is used for connecting to a sensor; a heat conduction component disposed in the flow passage, and the temperature measuring end of the heat conduction component extends out from the first connection port.

[0006] Further, the connecting seat has a first flow hole, one end of the first flow hole close to the outside of the connecting seat forms the first connection port, the heat conduction component is inserted into the first flow hole, and the temperature measuring end of the heat conduction component penetrates out of the first flow hole.

[0007] Further, the heat conduction component includes a heat conduction tube having a first end and a second end disposed opposite to each other, the second end of the heat conduction tube penetrates out of the first flow hole, and the second end of the heat conduction tube is a closed structure.

[0008] Further, the heat conduction tube is coaxially disposed with the first flow hole, and the outer diameter of the heat conduction tube is smaller than the aperture of the first flow hole.

[0009] Further, the first flow hole has two opposite ends, one end of the first flow hole is provided with an annular flange, the other end of the first flow hole forms the first connection port, the annular flange extends towards the direction close to the axis of the connecting seat, and the outer wall of the first end of the heat conduction tube is hermetically connected to the annular flange.

[0010] Further, the connecting head includes a main body and a tightening force - receiving part. One end of the tightening force - receiving part is connected to the main body, and the other end of the tightening force - receiving part is connected to the connecting seat. The cross - sectional shape of the tightening force - receiving part is a polygonal structure.

[0011] Further, external threads are provided on the outer wall of the main body.

[0012] Further, the connecting head has a second flow - through hole. One end of the second flow - through hole is communicated with the second connection port, and the other end of the second flow - through hole is arranged corresponding to the sensor.

[0013] Further, the connecting seat includes a first section and a second section which are connected to each other. The connecting head is arranged on the outer wall of the first section, and external threads are provided on the outer wall of the second section.

[0014] Further, the heat - conducting component further includes a temperature sensor, and the temperature sensor is arranged inside the heat - conducting tube.

[0015] According to another aspect of the present invention, an air - conditioning unit is provided. The air - conditioning unit includes: a pressure detection module; a heat exchanger having a medium flow - through port; a sensing joint. The connecting seat of the sensing joint is communicated with the medium flow - through port, and the connecting head of the sensing joint is communicated with the pressure detection module. The sensing joint is the sensing joint provided above.

[0016] Applying the technical solution of the present invention, the sensing joint includes a connecting seat, a connecting head, and a heat - conducting component. Among them, the connecting seat has a first connection port, a second connection port, and a flow - through channel. One end of the flow - through channel is communicated with the first connection port, and the other end of the flow - through channel is communicated with the second connection port. The connecting head is arranged on the connecting seat, and the connecting head is connected to the second connection port. The connecting head is used for connecting with a sensor. By arranging the heat - conducting component inside the flow - through channel and connecting the heat - conducting component with the temperature sensor, the temperature - measuring end of the heat - conducting component extends out from the first connection port, and temperature detection can be performed through the temperature - measuring end. In this way, the functions of pressure detection and temperature detection can be integrated on the sensing joint, thereby reducing the number of sensing joints and further simplifying the structure of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The schematic diagram of the specification drawings forming a part of this application is used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0018] Figure 1 Shows a schematic structural diagram of a sensing joint provided according to an embodiment of the present invention;

[0019] Figure 2 Shows a top view of a sensing joint provided according to an embodiment of the present invention;

[0020] Figure 3 ShowsFigure 2 Cross-sectional view at A-A;

[0021] Figure 4 Front view showing the sensing joint provided according to an embodiment of the present invention;

[0022] Figure 5 Showing Figure 4 Cross-sectional view at B-B;

[0023] Figure 6 Schematic structural diagram of an air-conditioning unit provided according to an embodiment of the present invention.

[0024] Among them, the above-mentioned drawings include the following reference numerals:

[0025] 10. Connection seat; 11. First connection port; 12. Second connection port; 13. First flow hole; 14. Annular flange; 15. First section; 16. Second section; 20. Connector; 21. Main body; 22. Tightening force-receiving part; 23. Second flow hole; 30. Heat conduction component; 31. Temperature measurement end; 32. Heat conduction tube; 321. First end; 322. Second end; 40. Pressure detection module; 50. Heat exchanger; 51. Medium flow port; 60. Sensing joint. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way constitutes a limitation to the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present invention.

[0027] As Figures 1 to 5As shown in the figure, an embodiment of the present invention provides a sensing joint, which includes a connecting seat 10, a connecting head 20, and a heat conduction component 30. Among them, the connecting seat 10 has a first connection port 11, a second connection port 12, and a flow channel. One end of the flow channel communicates with the first connection port 11, and the other end of the flow channel communicates with the second connection port 12. Specifically, the connecting head 20 is arranged on the connecting seat 10, the connecting head 20 is connected to the second connection port 12, and the connecting head 20 is used to connect with a sensor. In this embodiment, the first connection port 11 is used to connect with a heat exchanger, and the connecting head is used to connect with a pressure sensor. By arranging the heat conduction component 30 in the flow channel, the temperature measuring end 31 of the heat conduction component 30 extends out from the first connection port 11, and the temperature measuring end 31 of the heat conduction component 30 extends into the pipeline of the heat exchanger. Connecting the heat conduction component 30 with a temperature sensor, the temperature of the fluid in the heat exchanger can be detected by using the temperature measuring end 31, so that the detection of two parameters, temperature and pressure, can be realized simultaneously by using one sensing joint.

[0028] Applying the sensing joint provided by this embodiment, arranging the connecting head 20 on the connecting seat 10, connecting the connecting head 20 with the second connection port 12, and connecting the connecting head 20 with a pressure sensor can realize the function of pressure detection. Arranging the heat conduction component 30 in the flow channel, and making the temperature measuring end 31 of the heat conduction component 30 extend out from the first connection port 11, and connecting the heat conduction component 30 with a temperature sensor. When the fluid flows through the flow channel and enters the heat exchanger, the heat of the fluid can be detected by the temperature sensor through the heat conduction component 30, so that the function of temperature detection can be realized. Furthermore, the functions of pressure detection and temperature detection can be integrated on the sensing joint, which can reduce the number of required sensing joints and simplify the structure of the device. Moreover, making the temperature measuring end 31 of the heat conduction component 30 extend out from the first connection port 11 and extending the temperature measuring end 31 of the heat conduction component 30 into the pipeline of the heat exchanger can further improve the accuracy of temperature detection.

[0029] As Figure 3 and Figure 5 shown in the figure, the connecting seat 10 has a first through hole 13. One end of the first through hole 13 close to the outside of the connecting seat 10 forms the first connection port 11. The heat conduction component 30 is inserted into the first through hole 13, and the temperature measuring end 31 of the heat conduction component 30 passes through the first through hole 13. With the above structure, the first through hole 13 can not only play the role of fluid flow but also provide an assembly space for the heat conduction component 30. In this embodiment, one end of the first through hole 13 close to the outside of the connecting seat 10 forms the first connection port 11, and the second connection port 12 is arranged on the inner wall of the first through hole 13 close to the middle part, that is, a part of the first through hole 13 is the flow channel, and the remaining part of the first through hole 13 increases the heat exchange area of the heat conduction component 30, so that the temperature measurement accuracy can be further improved.

[0030] In this embodiment, the heat conduction component 30 includes a heat conduction tube 32. The heat conduction tube 32 has a first end 321 and a second end 322 which are oppositely arranged. The second end 322 of the heat conduction tube 32 passes through the first through hole 13, and the second end 322 of the heat conduction tube 32 is a closed structure. The method of using the heat conduction tube 32 for heat conduction is convenient for heat conduction and can utilize the inner space of the heat conduction tube 32 to provide an assembly space for the temperature sensor. By setting the second end 322 of the heat conduction tube 32 as a closed structure, it is possible to prevent fluid from entering the heat conduction tube 32 and avoid the temperature sensor in the heat conduction tube 32 from malfunctioning due to liquid ingress. In other embodiments, the heat conduction tube 32 can be replaced with a heat conduction strip. By providing an installation groove on the heat conduction strip and using the installation groove to install the temperature sensor, the same function of heat conduction and temperature measurement can be achieved. In this embodiment, the second end 322 of the heat conduction tube 32 is the temperature measurement end 31.

[0031] In this embodiment, the first end 321 of the heat conduction tube 32 is an open structure, which is convenient for assembling the temperature sensor. In other embodiments, the first end 321 of the heat conduction tube 32 can be sealed after the temperature sensor is arranged in the heat conduction tube 32, which can improve the sealing and protection performance of the device.

[0032] As Figure 3 and Figure 5 shown, the heat conduction tube 32 is coaxially arranged with the first through hole 13, and the outer diameter of the heat conduction tube 32 is smaller than the aperture of the first through hole 13. With the above structure, there is a gap between the outer wall of the heat conduction tube 32 and the inner wall of the first through hole 13, and this gap forms a flow channel. Moreover, by coaxially arranging the heat conduction tube 32 with the first through hole 13, it can be ensured that the periphery of the outer wall of the heat conduction tube 32 is wrapped by the fluid, thereby ensuring the heat conduction uniformity of the heat conduction tube 32 and ensuring the temperature measurement accuracy.

[0033] As Figure 3 and Figure 5 shown, the first through hole 13 has two oppositely arranged ends. One end of the first through hole 13 is provided with an annular flange 14, and the other end of the first through hole 13 forms a first connection port 11. In this embodiment, the first through hole 13 is a through hole, and the first through hole 13 is coaxially arranged with the connection seat 10. Specifically, the annular flange 14 extends towards the direction close to the axis of the connection seat 10, and the outer wall of the first end 321 of the heat conduction tube 32 is hermetically connected to the annular flange 14, so as to ensure the sealing performance of the device and ensure that the fluid in the device does not leak through the gap between the heat conduction tube 32 and the connection seat 10. In this embodiment, the outer wall of the first end 321 of the heat conduction tube 32 is hermetically connected to the annular flange 14 by welding.

[0034] As Figure 1 and Figure 2As shown, the connector 20 includes a main body 21 and a tightening force-receiving portion 22. One end of the tightening force-receiving portion 22 is connected to the main body 21, and the other end of the tightening force-receiving portion 22 is connected to the connection base 10. The cross-sectional shape of the tightening force-receiving portion 22 is a polygonal structure. By providing the tightening force-receiving portion 22, when connecting the sensor to the connector 20, tools such as a wrench can be used to hold the tightening force-receiving portion 22, preventing the connector 20 from rotating or shaking, and facilitating assembly. In this embodiment, the cross-sectional shape of the tightening force-receiving portion 22 is a hexagonal structure.

[0035] Specifically, an external thread is provided on the outer wall of the main body 21. In this embodiment, the pressure sensor is connected to the connector 20 through a copper tube and a nut connection portion. By sleeving the nut connection portion on the main body 21, the connection between the pressure sensor and the connector 20 can be achieved.

[0036] As Figure 3 shown, the connector 20 has a second flow hole 23. One end of the second flow hole 23 is communicated with the second connection port 12, and the other end of the second flow hole 23 is arranged corresponding to the sensor. Specifically, one end of the second flow hole 23 is communicated with the second connection port 12, and the other end of the second flow hole 23 is communicated with the pressure sensor through a connection tube such as a copper tube.

[0037] In this embodiment, the connector 20 is connected to the connection base 10 by an adhesive method. In other embodiments, the connector 20 can be assembled by welding or threaded connection.

[0038] As Figure 1 shown, the connection base 10 includes a first section 15 and a second section 16 connected to each other. The connector 20 is arranged on the outer wall of the first section 15, and an external thread is provided on the outer wall of the second section 16. With the above structure, the connection base 10 can be threadedly connected to the medium flow port of the heat exchanger through the second section 16. Among them, an installation plane is provided on the outer wall of the first section 15, and the connector 20 is arranged on the installation plane, so that it is convenient to assemble and fix the connector 20. In this embodiment, the cross-sectional shape of the first section 15 is a polygonal structure.

[0039] In this embodiment, the heat conduction assembly 30 further includes a temperature sensor, and the temperature sensor is arranged inside the heat conduction tube 32. The heat of the fluid is conducted by the heat conduction tube 32, and then the temperature can be detected by using the temperature sensor. Specifically, the temperature sensor includes a thermocouple.

[0040] In this embodiment, the heat conduction tube 32 is a copper tube, and its specification is 9.52. Among them, the connector 20 is made of copper or a steel part, and one end or both ends are made into threads according to the need to cooperate with the air-conditioning system. Among them, the connection base 10 is made of copper or a steel part.

[0041] AsFigure 6 As shown in Figure 6 , another embodiment of the present invention provides an air-conditioning unit, which includes a pressure detection module 40, a heat exchanger 50, and a sensing joint 60. The sensing joint 60 is the sensing joint provided above. Among them, the pressure detection module 40 includes a differential pressure switch. Among them, the heat exchanger 50 has a medium flow port 51. Connect the connecting seat 10 of the sensing joint 60 to the medium flow port 51, and connect the connecting head 20 of the sensing joint 60 to the pressure detection module 40, so that the sensing joint can be used to detect temperature and pressure at the same time. By installing the sensing joint 60 at a necessary position of the unit, the operation safety and reliability of the unit can be improved, and the leakage risk in the case of multiple joints can be avoided.

[0042] Among them, the medium flow port 51 includes an outlet water pressure port and an inlet water pressure port. The pressure detection module 40 is respectively connected to the outlet water pressure port and the inlet water pressure port through an outlet water pressure detection pipe and an inlet water pressure detection pipe. In this embodiment, the heat exchanger 50 includes a water-side heat exchanger.

[0043] Through the device provided in this embodiment, the detection of two parameters, temperature and pressure, can be realized simultaneously by using one sensing joint, which can replace the previous two control joint solutions for the water circuit and temperature. After integration, the number of installation components of the unit can be reduced, and the risk of water-side leakage can be reduced. At the same time, after integration, the detection of temperature and pressure is more accurate, enabling the unit to have the functions of energy saving and efficiency improvement within the optimal operation range.

[0044] It should be noted that the terms used here are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used here, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or their combinations.

[0045] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps described in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that for the convenience of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the said technologies, methods, and devices should be regarded as part of the authorized specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0046] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by orientation terms such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description. Without contrary explanation, these orientation terms do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present invention; the orientation terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0047] For the convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above-mentioned", etc. can be used here to describe the spatial positional relationship between a device or feature shown in the drawings and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation other than the orientation described in the drawings for the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned as "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding explanations for the spatial relative descriptions used here are made.

[0048] In addition, it should be noted that using words such as "first", "second", etc. to limit components is only for the convenience of distinguishing the corresponding components. Without additional statement, the above words have no special meaning. Therefore, it should not be construed as a limitation on the protection scope of the present invention.

[0049] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A sensing joint, characterized in that, the sensing joint comprises: a connecting seat (10), the connecting seat (10) having a first connection port (11), a second connection port (12) and a circulation channel, one end of the circulation channel communicating with the first connection port (11), and the other end of the circulation channel communicating with the second connection port (12); a connector (20), disposed on the connecting seat (10), the connector (20) being connected to the second connection port (12), the connector (20) being for connecting with a sensor; a heat conducting component (30), disposed in the circulation channel, the temperature measuring end (31) of the heat conducting component (30) extending out from the first connection port (11); wherein, the connecting seat (10) has a first circulation hole (13), one end of the first circulation hole (13) close to the outside of the connecting seat (10) forms the first connection port (11), the heat conducting component (30) is disposed in the first circulation hole (13), the temperature measuring end (31) of the heat conducting component (30) passes through the first circulation hole (13), the second connection port (12) is disposed on the inner wall of the first circulation hole (13), and part of the first circulation hole (13) is the circulation channel.

2. The sensing joint according to claim 1, characterized in that, the heat conducting component (30) comprises a heat conducting tube (32), the heat conducting tube (32) having a first end (321) and a second end (322) disposed opposite to each other, the second end (322) of the heat conducting tube (32) passing through the first circulation hole (13), and the second end (322) of the heat conducting tube (32) being a closed structure.

3. The sensing joint according to claim 2, characterized in that, the heat conducting tube (32) is coaxially disposed with the first circulation hole (13), and the outer diameter of the heat conducting tube (32) is smaller than the aperture of the first circulation hole (13).

4. The sensing joint according to claim 2, characterized in that, the first circulation hole (13) has two opposite ends, one end of the first circulation hole (13) is provided with an annular flange (14), the other end of the first circulation hole (13) forms the first connection port (11), the annular flange (14) extends towards the direction close to the axis of the connecting seat (10), and the outer wall of the first end (321) of the heat conducting tube (32) is sealingly connected to the annular flange (14).

5. The sensing joint according to claim 1, characterized in that, the connector (20) comprises a main body (21) and a tightening force receiving part (22), one end of the tightening force receiving part (22) being connected to the main body (21), the other end of the tightening force receiving part (22) being connected to the connecting seat (10), and the cross-sectional shape of the tightening force receiving part (22) being a polygon structure.

6. The sensing joint according to claim 5, characterized in that, the outer wall of the main body (21) is provided with an external thread.

7. The sensing joint according to claim 1, characterized in that, The connector (20) has a second flow hole (23), one end of the second flow hole (23) is communicated with the second connection port (12), and the other end of the second flow hole (23) is arranged corresponding to the sensor.

8. The sensing connector according to claim 1, characterized in that the connection base (10) includes a first section (15) and a second section (16) connected to each other, the connector (20) is arranged on the outer wall of the first section (15), and an external thread is arranged on the outer wall of the second section (16).

9. The sensing connector according to claim 2, characterized in that the heat conduction component (30) further includes a temperature sensor, and the temperature sensor is arranged in the heat conduction tube (32).

10. An air-conditioning unit, characterized in that the air-conditioning unit includes: a pressure detection module (40); a heat exchanger (50) having a medium flow port (51); a sensing connector (60), the connection base (10) of the sensing connector (60) is communicated with the medium flow port (51), the connector (20) of the sensing connector (60) is communicated with the pressure detection module (40), and the sensing connector (60) is the sensing connector according to any one of claims 1 to 9.

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