A concealed surface temperature sensor

Abstract

The present invention discloses a concealed surface temperature sensor, comprising: a sensor for detecting the temperature of an object; a heat conductive member having a contact surface in contact with the object to be measured, the contact surface having a mounting hole extending therethrough; a heat conductive sleeve clamp fixedly mounted in the mounting hole, the heat conductive sleeve clamp having a clamping channel; a clamping spring installed on the heat conductive sleeve clamp, having a contact end, the contact end extending into the clamping channel, and contacting the outer wall of the sensor, so that the outer wall of the sensor contacts the inner wall of the clamping channel. The present invention is provided with a heat conductive member, which acts as a medium for heat conduction, and the contact area between the temperature sensor and the surface of the capillary is increased by the heat conductive member, so that the temperature sensor can accurately detect the surface temperature of the capillary; the heat conductive sleeve clamp and the clamping spring are provided, so that the temperature sensor and the heat conductive member can be contacted and fitted, further reducing the influence of external factors on the detection results of the temperature sensor, thereby improving the accuracy of the temperature sensor detection.

Description

Technical Field

[0001] The invention relates to the field of temperature sensor design, in particular to a concealed surface temperature sensor. Background Art

[0002] At present, the radiation air conditioner adopts the radiation heat transfer method, that is, the ceiling, walls and ground of the room are covered with capillaries, and water is passed inside the capillaries. When cooling, cold water is passed inside the capillaries, and when heating, hot water is passed inside the capillaries. The capillaries transfer heat to the surface, and the indoor constant temperature is maintained by surface radiation, thereby realizing the cooling and heating of the room. The radiation heat transfer is noiseless and the room temperature is uniform, which has a high sense of comfort. When cooling and heating, the control system needs to detect the temperature of the surface covered by the capillary in real time and control it. At present, the indoor temperature sensor is mostly installed in the powder ash layer in an open or concealed manner. The open installation is to directly install the temperature sensor on the outside of the decoration side, and the concealed installation is to directly embed the temperature sensor around the capillary. The inventor found that the existing temperature sensor installation has the following defects: the temperature sensor installed in the wall is only tangent to a single capillary, resulting in a large error in the capillary surface temperature detected by it. Now a concealed surface temperature sensor is needed to improve the accuracy of detection. Summary of the invention

[0003] In view of this, the purpose of the present invention is to provide a concealed surface temperature sensor to solve the problem mentioned in the background technology: a concealed surface temperature sensor is needed to improve the detection accuracy.

[0004] Based on the above purpose, the present invention provides a concealed surface temperature sensor, comprising:

[0005] Sensors, used to detect the temperature of an object;

[0006] The heat conducting member has a contact surface for contacting the object to be measured, and a mounting hole is formed through the contact surface;

[0007] A heat-conducting sleeve clamp is fixedly mounted in the mounting hole, and a clamping channel is provided in the heat-conducting sleeve clamp;

[0008] The clamping spring piece is mounted on the heat-conducting sleeve clamp and has a contact end. The contact end extends into the clamping channel and contacts the outer wall of the sensor, so that the outer wall of the sensor contacts the inner wall of the clamping channel.

[0009] Optionally, the heat conductive sleeve clip matches the shape of the mounting hole.

[0010] Optionally, the heat conductive sleeve clamp is fixedly connected to the mounting hole by means of an expansion tube.

[0011] Optionally, the heat-conducting sleeve clamp comprises an arc wall, and a positioning portion is provided on an end surface of the arc wall, and the positioning portion is used to install the clamping spring sheet.

[0012] Optionally, the positioning portion has a rectangular cross-section.

[0013] Optionally, the clamping spring also includes a clamping end, which is clamped and mounted on the end face of the positioning portion, and the abutting end is connected to the clamping end to form a herringbone angle, and the top of the angle is arranged toward the direction of the arc wall.

[0014] Optionally, the outer wall of the sensor fits tightly onto the arc wall.

[0015] Optionally, the heat-conducting sleeve is rolled into a cylindrical structure with an opening on one side.

[0016] Optionally, it also includes a gasket and a neodymium magnetic sheet, wherein the gasket is fixedly mounted on one end face of the heat conductive member, the neodymium magnetic sheet can be adsorbed on the end face of the gasket, and the neodymium magnetic sheet is arranged along a side away from the heat conductive member.

[0017] Optionally, the heat conducting member is a heat conducting metal plate ring, and a plurality of circular holes are formed through the contact surface of the heat conducting metal plate ring.

[0018] Beneficial effects:

[0019] 1. The present invention can effectively prevent condensation on the surface of the temperature sensor by concealed installation in the ceiling, wall, or floor, reduce the influence of external factors on the temperature sensor, and improve the detection accuracy of the temperature sensor.

[0020] 2. A heat-conducting metal plate ring is provided, and the contact surfaces of the heat-conducting metal plate ring are in contact with the radiation surface of the capillary and the temperature sensor respectively. The heat-conducting metal plate ring can conduct the temperature of multiple capillary radiation surfaces, so that the temperature sensor continuously collects multiple groups of data, thereby making the detection result more accurate.

[0021] 3. Since the temperature sensor is concealed in the cavity, when the temperature sensor needs to be repaired, the location of the temperature sensor can be determined through the metal sheet based on the characteristic of neodymium magnets that can absorb metals, so as to quickly find the location of the temperature sensor in the ceiling, wall, and floor, which can simplify the repair process and improve the efficiency of maintenance.

[0022] 4. Installed in ceiling, wall or floor, it will not affect the flatness of the wall surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the temperature sensor structure according to an embodiment of the present invention;

[0024] Figure 2 It is a structural schematic diagram of a sensor in the temperature sensor structure of an embodiment of the present invention;

[0025] Figure 3 It is a schematic structural diagram of a heat-conducting sleeve clamp in a temperature sensor structure according to an embodiment of the present invention;

[0026] Figure 4 It is a schematic diagram of the structure of the clamping spring in the temperature sensor structure according to an embodiment of the present invention;

[0027] Figure 5 It is an exploded view of the parts assembly of the temperature sensor structure according to an embodiment of the present invention;

[0028] Figure 6 A cross-sectional view of an installation method of a temperature sensor structure according to an embodiment of the present invention;

[0029] Figure 7 A top view of a temperature sensor structure according to an embodiment of the present invention in one installation mode;

[0030] Figure 8 This is a cross-sectional view of another installation method of the temperature sensor structure according to an embodiment of the present invention. DETAILED DESCRIPTION

[0031] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0032] It should be noted that all expressions using "another" and "another" in the embodiments of the present invention are for distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "another" and "another" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. The subsequent embodiments will not explain this one by one.

[0033] As an embodiment, the present invention provides a concealed surface temperature sensor, comprising: a sensor for detecting the temperature of an object; a heat conductive member having a contact surface in contact with the object to be measured, the contact surface having a mounting hole extending therethrough; a heat conductive sleeve clamp fixedly mounted in the mounting hole, the heat conductive sleeve clamp having a clamping channel; a clamping spring piece mounted on the heat conductive sleeve clamp, having a contact end, the contact end extending into the clamping channel and contacting the outer wall of the sensor, so that the outer wall of the sensor contacts the inner wall of the clamping channel.

[0034] like Figures 1 to 8As shown, a concealed surface temperature sensor comprises: a sensor 1, which is used to detect the temperature of an object and is composed of a temperature detection chip 102, a chip guide sleeve 101 and a connecting line 103; a heat conductive member 2, which has a contact surface in contact with the object to be measured, the contact surface of the heat conductive member 2 is arranged closely to the object to be measured, and a mounting hole 201 is provided through the contact surface; a heat conductive sleeve clamp 3, which is inserted into the mounting hole 201 of the heat conductive member 2, the outer wall of the heat conductive sleeve clamp 3 is fixedly connected to the inner wall of the heat conductive member 2, and a clamping channel 304 is provided in the heat conductive sleeve clamp 3; a clamping spring 4, which is installed on one side end surface of the heat conductive sleeve clamp 3 and has a contact end 401, which extends into the clamping channel 304 and contacts the outer wall of the sensor 1, so that the outer wall of the sensor 1 contacts the inner wall of the clamping channel 304.

[0035] The surfaces of the ceiling, walls and floors are covered with an insulation layer, and the surface of the insulation layer is adhered to a gypsum board. The capillary of the radiant air conditioner is laid and installed on the surface of the gypsum board, and the heat-conducting component 2 is tightly arranged on the surface of the capillary. Finally, a layer of gypsum slurry is coated on the surface of the capillary and the heat-conducting component 2. In the process of coating the gypsum slurry, a mounting hole 201 position of the heat-conducting component 2 is reserved, and a hole position for placing the sensor 1 is reserved on the insulation layer and the gypsum board. During the installation process, the heat-conducting sleeve clamp 3 is first inserted into the mounting hole 201, and the heat-conducting sleeve clamp 3 is fixedly installed in the mounting hole 201 in an existing manner. The heat-conducting sleeve clamp 3 has a clamping channel 304, and both ends of the clamping channel 304 are connected. Then, a clamping spring 4 is installed at one end of the heat-conducting sleeve clamp 3, and the clamping spring 4 is installed at the end away from the insulation layer. The clamping spring 4 has a contact end 401, and the contact end 401 extends to the clamping channel 304. Finally, the sensor 1 is inserted into the clamping channel 304; the sensor 1 is composed of a temperature detection chip 102, a chip guide sleeve 101 and a connecting wire 103, the connecting wire 103 is soldered to the temperature detection chip 102 by soldering, the temperature detection chip 102 and the connecting wire 103 are both installed in the chip guide sleeve 101, the chip guide sleeve 101 is plugged into the clamping channel 304, the temperature detection chip 102 is installed at the end away from the wall, the connecting wire 103 is installed at the end close to the wall, the abutting end 401 of the clamping spring 4 abuts against the outer wall of the chip guide sleeve 101, so that the outer wall of the chip guide sleeve 101 abuts against the inner wall of the clamping channel 304, the chip guide sleeve 101 passes through the thermal conductive sleeve clamp 3, and is placed in the reserved holes of the gypsum board and the insulation layer. After the installation is completed, the ceiling, wall and floor are filled with gypsum slurry, so that the temperature sensor is completely concealed in the ceiling, wall and floor.

[0036] In summary, the temperature sensor is provided with a heat conductive member 2, which has a contact surface tightly arranged with the surface of the capillary. The heat conductive member 2 acts as a medium for heat conduction. The contact area between the sensor 1 and the surface of the capillary is increased by the heat conductive member 2, so that the sensor 1 can accurately detect the surface temperature of the capillary; a heat conductive sleeve clamp 3 and a clamping spring 4 are provided, which can make the sensor 1 and the heat conductive member 2 contact and fit, avoid the sensor 1 and the heat conductive member 2 not being in full contact, further reduce the influence of external factors on the detection result of the sensor 1, and thus improve the detection accuracy of the sensor 1; the heat conductive sleeve clamp 3 and the clamping spring 4 can make the sensor 1 detachable and installed in the clamping channel 304. When the sensor 1 needs to be repaired, it is only necessary to take out the sensor 1 without destroying the structures such as the heat conductive member 3 and the heat conductive sleeve clamp 4, thereby reducing the difficulty of repair and improving the convenience of repair.

[0037] In one embodiment, the thermally conductive sleeve clip 3 matches the shape of the mounting hole 201, and a rectangular profile or a circular profile may be selected, which not only makes it easier for the thermally conductive sleeve clip 3 to be inserted into the mounting hole 201, thereby improving the convenience of installation for operators, but also maximizes the contact area between the thermally conductive sleeve clip 3 and the heat conductive component 2, thereby increasing the heat conduction rate, reducing the heat transfer temperature difference, and improving the detection accuracy of the sensor 1. Generally speaking, the heat conductive sleeve clip 3 and the mounting hole 201 can be fixed by welding, but in the present embodiment, it is preferably fixed and connected by means of expansion tube. After the heat conductive sleeve clip 3 is inserted into the mounting hole 201, the operator performs an expansion tube operation on the heat conductive sleeve clip 3 to expand the outer wall of the heat conductive sleeve clip 3 and finally reach a state of interference fit with the mounting hole 201, so that the heat conductive sleeve clip 3 is in full contact with the heat conductive member 2. After completing the expansion tube operation, the operator applies a thermal conductive adhesive to the contact portion between the heat conductive member 2 and the heat conductive sleeve clip 3, so as to increase the heat conduction rate between the heat conductive member 2 and the heat conductive sleeve clip 3, reduce the heat transfer temperature difference, and make the heat conductive sleeve clip 3 and the heat conductive member 2 more firmly connected.

[0038] Furthermore, in order to facilitate the operator to perform the tube expansion operation, during the production of the heat-conducting sleeve clamp 3, a copper sheet is made into the heat-conducting sleeve clamp 3 by rolling. The heat-conducting sleeve clamp 3 is a cylindrical structure with an opening 303 on one side. During the installation process, the heat-conducting sleeve clamp 3 is deformed due to expansion. The opening 303 can make the outer wall of the heat-conducting sleeve clamp 3 have sufficient ductility, ensuring that the side wall is always in contact with the inner wall of the installation hole 201 during the tube expansion process, so that the heat-conducting sleeve clamp 3 is fully in contact with the heat-conducting component 2, reducing the heat transfer temperature difference, and improving the detection accuracy of the sensor 1.

[0039] In another embodiment, the heat-conducting sleeve clamp 3 is provided with an arc wall 301, and a positioning portion 302 is provided on the end surface of the arc wall 301, and the positioning portion 302 is used to install the clamping spring piece 4; it should be further pointed out that the positioning portion 302 has a rectangular cross-section; during the installation process, the positioning portion 302 keeps the heat-conducting sleeve clamp 3 in a relatively fixed position in the installation hole 201, and prevents the heat-conducting sleeve clamp 3 from rotating in the installation hole 201, thereby making it easier for operators to install the heat-conducting sleeve clamp 3; the arc wall 301 is a smooth transition section on the heat-conducting sleeve clamp 3, and when the operator performs the expansion operation, compared with the rectangular positioning The arc wall 301 is easier to expand and extend and always fits with the inner wall of the mounting hole 201 to maintain full contact; when the tube is expanded, stress will be generated on the thermal conductive sleeve clamp 3, and the arc wall 301 can avoid stress concentration and reduce the possibility of stress damage. The arc wall 301 plays a certain protective role on the thermal conductive sleeve clamp 3; the inner contour of the arc wall 301 fits with the outer contour of the chip guide sleeve 101, increasing the contact area between the chip guide sleeve 101 and the arc wall 301, and by increasing the contact area, the heat conduction rate is increased, the heat transfer error is reduced, and the sensor 1 can detect the temperature of the capillary surface more accurately.

[0040] Further, the positioning portion 302 includes a bottom wall 3021, and the two ends of the bottom wall 3021 are respectively provided with side walls 3022, and the two side walls 3022 are respectively perpendicular to the bottom wall 3021. The positioning portion 302 not only makes it easy to position and install the heat conductive sleeve clamp 3, but is also used to install the clamping spring 4. The clamping spring 4 includes a clamping end 402, and the clamping end 402 is clamped and installed on the end surface of the positioning portion 302. The two ends of the clamping end 402 are respectively arranged on the inner side and the outer side of the bottom wall 3021 of the positioning portion, and the contact end 401 is arranged in the clamping channel 304 and is connected with the clamping end 40 2 is fixedly connected to form a herringbone angle, and the top of the angle is set toward the arc wall 301; during the installation process, the sensor 1 is inserted into the clamping channel 304, and the sensor 1 compresses the clamping spring 4 so that the abutting end 401 obtains elastic potential energy due to deformation, and the top of the herringbone angle abuts against the outer wall of the sensor 1, so that the outer wall of the sensor 1 abuts against the inner wall of the clamping channel 304, so that the sensor 1 is fully in contact with the heat conductive sleeve clamp 3, the heat conduction rate is increased, the heat transfer error is reduced, and the temperature detection of the capillary surface by the sensor 1 is more accurate.

[0041] Furthermore, since air is a poor conductor of heat, the outer wall of the sensor 1 is arranged to fit closely to the inner wall of the arc wall 301 , which can avoid incomplete contact between the sensor 1 and the thermal conductive sleeve 3 , thereby ensuring that the detection result of the sensor 1 is not affected by external factors.

[0042] In another embodiment, the temperature sensor structure also includes a gasket 5 and a neodymium magnetic sheet 6, which are fixed by coating epoxy resin glue on the end face of the heat conductor 2 and then placing the gasket 5 on the bonding surface. The neodymium magnetic sheet 6 is magnetically adsorbed on the end face of the gasket 5, and the neodymium magnetic sheet 6 is arranged on the side away from the heat conductor 2; during the maintenance of the sensor 1, since the sensor 1 is concealed in the wall, it is difficult for the operator to quickly find the position of the sensor 1, which increases the difficulty of maintenance. With the neodymium magnetic sheet 6, the operator only needs to use a metal object that can be adsorbed by the neodymium magnetic sheet 6 to easily detect the installation position of the temperature sensor in the wall, thereby improving the ease of operation and reducing the difficulty of maintenance.

[0043] Further, the heat-conducting member 2 is configured as a heat-conducting metal plate ring 210, and a plurality of circular holes 211 are formed on the contact surface of the heat-conducting metal plate ring 210. During the installation process, gypsum mortar needs to be applied to fix the capillary and the heat-conducting metal plate ring 210. The plurality of circular holes 211 are formed on the surface of the heat-conducting metal plate ring 210, which facilitates the embedding of the gypsum mortar into the heat-conducting metal plate ring 210. 0 in the heat-conducting metal plate ring 210, so that the heat-conducting metal plate ring 210 is fixed more firmly; the heat-conducting metal plate ring 210 is installed between the gaps of two adjacent capillaries, and the outer diameter of the heat-conducting metal plate ring 210 is greater than the spacing between the capillaries, so that the heat-conducting metal plate ring 210 fits with more than two capillaries, which can improve the heat conduction rate, thereby improving the detection accuracy of the temperature sensor. Preferably, aluminum is used as the material of the heat-conducting metal plate ring 210.

[0044] The present invention has a variety of installation methods, one of which is to install the temperature sensor on the ceiling or the top of the wall. The lower surface of the wall of the top of the wall is provided with an insulation layer 7, and the lower surface of the insulation layer 7 is installed with a paper gypsum board 8. Holes are reserved on the insulation layer 7 and the paper gypsum board 8. A plurality of capillary pipes 9 are fixedly installed on the lower surface of the paper gypsum 8. A heat-conducting metal plate ring 210 is provided on the lower surface of the capillary pipe 9. The heat-conducting metal plate ring 210 is installed between the gaps of two adjacent capillary pipes 9. The gypsum mortar is embedded in the circular hole 211 of the heat-conducting metal plate ring 210, so that the heat-conducting metal plate ring 210 is installed between the gaps of two adjacent capillaries 9. The thermal metal plate ring 210 is installed more firmly; in the process of installing the sensor, the thermal conductive sleeve clamp 3 is first inserted into the installation hole 201, and then a clamping spring 4 is installed at one end of the thermal conductive sleeve clamp 3, and the clamping spring 4 is installed at the end away from the insulation layer 7. The clamping spring 4 has a contact end 401, and the contact end 401 extends into the clamping channel 304. Thereafter, the sensor 1 is inserted into the clamping channel 304, and then epoxy resin glue is coated on the non-contact surface of the thermal conductive metal plate ring 210, and the gasket 5 is bonded by the epoxy resin glue, and the neodymium magnetic sheet 6 is adsorbed on the gasket.

[0045] In another installation method, the temperature sensor is installed on the ground. First, a junction box 11 is installed on the ground. Through holes are opened on the top and side walls of the junction box 11, and fine sand 13 is filled in the junction box 11. At the same time, the outside of the junction box 11 is filled with fine sand 13. A floor 15 is installed on the upper surface of the fine sand 13. The floor 15 has a reserved installation hole. The capillary 14 is laid between the junction box 11 and the floor 15 and is covered by the fine sand 13. The contact surface of the heat-conducting metal plate ring 210 is arranged on the floor 15. The lower surface of the heat conductive sleeve clamp 3 is installed into the installation hole reserved in the floor 15, and a clamping spring 4 is installed on the upper end surface of the heat conductive sleeve clamp 3. Then the sensor 1 is plugged into the clamping channel 304, and the connecting wire 103 of the sensor 1 is led out from the hole on the side wall of the junction box 11. Thereafter, a gasket 5 is bonded with epoxy resin glue, and a neodymium magnet 6 is adsorbed on the upper end of the gasket 5. The gap between the gasket 5 and the neodymium magnet 6 is filled with gypsum mortar. After the installation is completed, the upper surface of the neodymium magnet 6 is flush with the upper surface of the floor 15.

[0046] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present disclosure (including the claims) is limited to these examples. Within the scope of the present invention, the above embodiments or technical features in different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0047] While the invention has been described in conjunction with specific embodiments thereof, many alternatives, modifications and variations of these embodiments will be apparent to those skilled in the art in light of the foregoing description.

[0048] The embodiments of the present invention are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A concealed surface temperature sensor, characterized in that: include: Sensors, used to detect the temperature of an object; The heat conducting member has a contact surface for contacting the object to be measured, the contact surface is provided with a mounting hole, the heat conducting member is a heat conducting metal plate ring, the heat conducting metal plate ring is installed between the gaps of two adjacent capillaries, and the outer diameter of the heat conducting metal plate ring is greater than the spacing between the capillaries, and the contact surface of the heat conducting metal plate ring is used to fit with more than two capillaries; A heat-conducting sleeve clamp is fixedly installed in the mounting hole and arranged along the axial direction of the mounting hole, and a clamping channel is provided in the heat-conducting sleeve clamp; The clamping spring piece is installed on the heat-conducting sleeve clamp and has a contact end, wherein the contact end extends into the clamping channel and contacts the outer wall of the sensor, so that the outer wall of the sensor contacts the inner wall of the clamping channel; It also includes a gasket and a neodymium magnetic sheet. The gasket is fixedly mounted on one end face of the heat-conducting metal plate ring. The neodymium magnetic sheet can be adsorbed on the end face of the gasket. The neodymium magnetic sheet is arranged along a side away from the heat-conducting metal plate ring.

2. A concealed surface temperature sensor according to claim 1, characterized in that: The heat-conducting sleeve clamp matches the shape of the mounting hole.

3. A concealed surface temperature sensor according to claim 2, characterized in that: The heat-conducting sleeve clamp is fixedly connected to the mounting hole by means of expansion tube.

4. A concealed surface temperature sensor according to claim 3, characterized in that: The heat-conducting sleeve clamp comprises an arc wall, and a positioning portion is provided on the end surface of the arc wall. The positioning portion is used to install the clamping spring sheet.

5. A concealed surface temperature sensor according to claim 4, characterized in that: The positioning portion has a rectangular cross section.

6. A concealed surface temperature sensor according to claim 4, characterized in that: The clamping spring also includes a clamping end, which is clamped and mounted on the end surface of the positioning portion. The abutting end is connected to the clamping end to form a herringbone angle, and the top of the angle is arranged toward the arc wall.

7. A concealed surface temperature sensor according to claim 4, characterized in that: The outer wall of the sensor is tightly fitted on the arc wall.

8. The concealed surface temperature sensor according to claim 3, characterized in that: The heat-conducting sleeve is formed into a cylindrical structure with one side open by rolling.

9. The concealed surface temperature sensor according to claim 1, characterized in that: A plurality of circular holes are formed through the contact surface of the heat-conducting metal plate ring.

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