Temperature measuring device

Abstract

The utility model discloses a temperature measuring device, the temperature measuring device comprises a measuring part and a detection plate, the measuring part comprises a thermodetector and at least one temperature sensor, the first end of the temperature sensor is connected with the thermodetector; the detection plate is provided with at least one concave part, and the concave part is used for being connected with the second end of the corresponding temperature sensor, so that the thermodetector can measure the temperature of the concave part; the end part of the detection plate is detachably connected with a limiting part, and the limiting part is used for abutting against a welding lamp box so as to limit the detection plate; the number of the sunken parts is not less than that of the temperature sensors, the detection plate is provided with a plurality of detection areas, and each detection area is internally connected with one temperature sensor. Therefore, the sunken part on the detection plate can be used for simulating the welding position of the silicon wafer, so that the temperature of the welding position can be reliably measured.

Description

TECHNICAL FIELD

[0001] The utility model relates to temperature measurement technical field more particularly, the utility model relates to a kind of temperature measuring devices. BACKGROUND

[0002] In photovoltaic industry, stringer equipment as the key equipment in the process of solar panel manufacturing, its performance and efficiency are directly related to the quality and production cost of solar panel. Among them, the welding lamp box as an important part of stringer, undertakes the task of accurate welding of battery piece.

[0003] At present, in order to monitor and control the temperature inside the welding lamp box, silicon wafer is usually used to measure temperature directly. That is, by attaching the temperature measuring element directly on the silicon wafer, the temperature information on the surface of the silicon wafer is obtained in real time, and then the temperature inside the lamp box is regulated. However, this measurement method is easy to damage the silicon wafer itself, and the measurement result is not reliable enough. SUMMARY

[0004] The purpose of the utility model is to provide a new technical solution of temperature measuring device.

[0005] According to one aspect of the utility model, a temperature measuring device is provided for measuring the temperature inside the welding lamp box, comprising:

[0006] The measuring part comprises a temperature measuring instrument and at least one temperature sensor, and the first end of the temperature sensor is connected to the temperature measuring instrument;

[0007] The detection plate has at least one recessed part, and the recessed part is used to connect the second end of the corresponding temperature sensor, so that the temperature measuring instrument can measure the temperature at the recessed part;

[0008] The end of the detection plate is detachably connected to a limiting part, and the limiting part is used to abut against the welding lamp box to limit the detection plate;

[0009] Among them, the number of recessed parts is not less than the number of temperature sensors, and the detection plate has a plurality of detection areas, and one temperature sensor is connected in each detection area.

[0010] Optionally, the limiting part is an L-shaped stopper, and the L-shaped stopper is detachably connected to one end of the detection plate close to the temperature measuring instrument.

[0011] Optionally, the ratio of the depth of the recessed part to the thickness of the detection plate ranges from 1:6 to 1:2.

[0012] Optionally, the thickness of the detection plate ranges from 2mm to 3mm.

[0013] Optionally, the size of the recess ranges from 4mm to 7mm along the cross section of the detection plate.

[0014] Optionally, the number of the recesses is multiple, and the multiple recesses are uniformly distributed or arrayed along the cross section of the detection plate.

[0015] Optionally, the interval between two adjacent recesses ranges from 15mm to 20mm.

[0016] Optionally, each detection area is of the same size, and the temperature sensor is located at the middle of the corresponding detection area.

[0017] Optionally, the detection plate is a rectangular plate, the length of the detection plate ranges from 180mm to 230mm, and the width of the detection plate ranges from 90mm to 115mm.

[0018] Optionally, the temperature sensor is externally sleeved with a heat insulation shell.

[0019] Optionally, the detection plate is an aluminum alloy plate.

[0020] Optionally, the temperature sensor is a thermocouple, and the second end of the thermocouple is adhered to the recess by conductive silver paste or conductive glue.

[0021] One technical effect of the utility model lies in:

[0022] The temperature measuring device comprises a measuring part and a detection plate, the measuring part comprises a temperature measuring instrument and at least one temperature sensor, the first end of the temperature sensor is connected with the temperature measuring instrument; the detection plate is provided with at least one recess, the recess is used for connecting the second end of the corresponding temperature sensor, so that the temperature measuring instrument can measure the temperature at the recess; the end of the detection plate is detachably connected with a limiting part, the limiting part is used for abutting against the welding lamp box to limit the detection plate; wherein the number of the recesses is not less than the number of the temperature sensors, the detection plate is provided with multiple detection areas, and one temperature sensor is connected in each detection area. In this way, the recesses on the detection plate can be used to simulate the welding position of the silicon wafer, so that the temperature of the welding position can be reliably measured. Moreover, the limiting part can also make the detection plate stably stay in the welding lamp box, thereby improving the measurement reliability of the temperature measuring device.

[0023] Other features and advantages of the utility model will become apparent from the following detailed description of exemplary embodiments thereof, with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0024] The accompanying drawings, which form a part of the specification, illustrate embodiments of the present application and, together with the description, serve to explain the principles of the present application.

[0025] Figure 1 is a schematic view of a temperature measuring device according to an embodiment of the present application;

[0026] Figure 2 is another schematic view of a temperature measuring device according to an embodiment of the present application;

[0027] Figure 3 is a schematic view of a probe plate according to an embodiment of the present application;

[0028] Figure 4 is another schematic view of a probe plate according to an embodiment of the present application;

[0029] Figure 5 is a further schematic view of a probe plate according to an embodiment of the present application.

[0030] BRIEF DESCRIPTION OF DRAWINGS

[0031] 1, temperature measuring instrument; 2, temperature sensor; 3, probe plate; 31, recessed portion; 32, limiting portion. DETAILED DESCRIPTION

[0032] Various example embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of the components and steps set forth in these embodiments, numerical expressions, and numerical values are not limiting to the scope of the present application unless otherwise specifically stated.

[0033] The following description of at least one example embodiment is merely exemplary in nature and is in no way limiting to the scope of the present application and its applications or uses.

[0034] Techniques and devices known to those of ordinary skill in the relevant art can not be discussed in detail herein. However, where appropriate, such known techniques and devices should be considered as part of the specification.

[0035] In all of the examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as a limitation. Thus, other examples of the example embodiments can have different values.

[0036] It should be noted that like references and characters herein relate to like items throughout the figures and the written description, and therefore, once an item is defined in one figure, it need not be discussed further in subsequent figures.

[0037] The utility model provides a kind of temperature measuring device, for measuring the temperature in welding lamp box, to facilitate the temperature in welding lamp box keeps constant, to guarantee the welding quality and welding reliability of silicon wafer in turn.

[0038] As Figure 1 And Figure 2 The utility model provides a temperature measuring device, comprising:

[0039] Measuring part, the measuring part includes temperature measuring instrument 1 and at least one temperature sensor 2, the first end of the temperature sensor 2 is connected with the temperature measuring instrument 1;

[0040] Detection plate 3, the detection plate 3 has at least one recess 31, the recess 31 is used to connect the second end of corresponding temperature sensor 2, so that the temperature measuring instrument 1 can measure the temperature at the recess 31;

[0041] The end of the detection plate 3 can be detachably connected with a limiting portion 32, and the limiting portion 32 is used to abut against the welding lamp box to limit the detection plate 3;

[0042] Among them, the number of recess 31 is not less than the number of temperature sensor 2, the detection plate 3 has a plurality of detection areas, one temperature sensor 2 is connected in each detection area.

[0043] Among them, temperature measuring instrument 1 can be selected high-precision digital temperature measuring instrument 1, it has fast response, high accuracy and easy to read and other advantages. Temperature measuring instrument 1 can process the signal transmitted from temperature sensor 2 by built-in microprocessor and transmit to external electronic equipment to facilitate reading temperature value, without redundant cable interference, also saves the layout cost, reduces the layout difficulty. Among them, temperature measuring instrument 1 can have heat-insulating shell, can guarantee that it has reliable measuring ability.

[0044] Temperature sensor 2 is used to perceive and convert the temperature information of environment or object into electric signal, and temperature sensor 2 can be selected platinum resistance or thermocouple. The first end of temperature sensor 2, i.e. signal output end, can be connected with the input port of temperature measuring instrument 1 through wire or plug, so that temperature measuring instrument 1 can measure the temperature signal transmitted through the first end of temperature sensor 2.

[0045] As Figures 1 to 4As shown, the probe plate 3 can be made of a metal material with good thermal conductivity, such as aluminum alloy or stainless steel, and at least one recess 31 is designed on the surface of the probe plate 3. The recess 31 on the probe plate 3 can simulate the welding position of the silicon wafer, so that the temperature of the welding position can be measured more reliably. The shape and size of each recess 31 can be matched with the second end of the temperature sensor 2, i.e. the sensing end, to ensure that they can be closely fitted and effectively transmit temperature information.

[0046] On the one hand, the recess 31 serves as the mounting position of the temperature sensor 2, which can realize quick positioning and installation and efficient heat conduction between the temperature sensor 2 and the probe plate 3, reducing the loss and interference in the heat transfer process, thereby improving the accuracy of temperature measurement. On the other hand, the design of the recess 31 allows the temperature sensor 2 to focus on measuring a specific area, avoiding interference from the ambient temperature, especially in high-temperature and complex environments such as welding light boxes. This focused measurement approach can improve the accuracy of the measurement.

[0047] In addition, multiple temperature sensors 2 and multiple recesses 31 can be provided to monitor the temperature of multiple positions inside the welding light box, thereby providing more comprehensive and accurate temperature data.

[0048] As shown in Figure 3 and Figure 4 A threaded hole, a buckle slot or other interface can be designed at the end of the probe plate 3, allowing the limiting part 32 to be detachably connected to the probe plate 3 through the interface. This design allows the position and tightness of the limiting part 32 to be adjusted according to actual needs, to adapt to the detection needs of welding light boxes of different sizes, and also improves the versatility and flexibility of the temperature measuring device. For example, a fine adjustment mechanism such as a rotary adjustment knob or a sliding guide rail can be provided on the limiting part 32 to allow the relative position between the probe plate 3 and the welding light box to be adjusted more finely, thereby improving the accuracy and flexibility of the measurement.

[0049] During the process of the conveyor belt driving the temperature measuring device into the welding light box, the limiting part 32 at the end of the probe plate 3 can abut against the outer wall of the welding light box to limit the further movement of the probe plate 3 by physical blocking, thereby ensuring that the temperature sensor 2 is stably located at the predetermined measurement position, avoiding the influence of vibration or external force on the measurement accuracy, and improving the measurement reliability of the temperature measuring device.

[0050] The material of the limiting part 32 is usually a plastic or a lightweight alloy with certain elasticity and wear resistance to ensure that it is stable when in contact with the welding light box and does not damage the surface of the welding light box.

[0051] The following briefly describes the measurement method of the temperature measuring device according to an embodiment of the present application.

[0052] Firstly, the second end of the temperature sensor 2 is inserted into the corresponding recess 31 of the detection plate 3, ensuring that the two are closely attached;

[0053] Then, the temperature measuring instrument 1 is connected with the first end of the temperature sensor 2, and the temperature measuring instrument 1 is started to preheat and calibrate;

[0054] Then, according to the size and shape of the welding light box, the position and tightness of the limiting part 32 are adjusted so that it can be firmly abutted on the welding light box;

[0055] Then, the conveying belt is started, and the conveying belt can drive the detection plate 3 to the predetermined measurement position;

[0056] Finally, the temperature measuring program is started, and the temperature measuring instrument 1 displays and records the temperature data at the corresponding recess 31 in real time for the operator to monitor and analyze.

[0057] In addition, the detachable connection between the limiting part 32 and the detection plate 3 enables the operator to quickly and conveniently install or disassemble the temperature measuring device, reducing the operation difficulty and time cost. When a component fails or needs maintenance, it can also be individually disassembled and replaced, without the need for overall replacement, reducing maintenance cost and difficulty.

[0058] Moreover, the number of recesses 31 on the detection plate 3 is greater than or equal to the number of temperature sensors 2, so that the detection plate 3 can be attached with multiple temperature sensors 2, thereby enabling the monitoring of the temperature of multiple positions inside the welding light box to provide more comprehensive and accurate temperature data.

[0059] As shown in Figure 5 The detection plate 3 can be provided with six detection areas ①-⑥, and one temperature sensor 2 is connected in each detection area, so that the temperature measuring instrument 1 can simultaneously measure the temperature of the six detection areas ①-⑥.

[0060] According to specific temperature measuring needs, the number and connection position of the temperature sensors 2 can also be adjusted. For example, the temperature sensor 2 can be arranged in the middle of the corresponding detection area to obtain more accurate measurement results, and multiple temperature sensors 2 can be connected in one detection area to enhance the accuracy of the measurement results.

[0061] Optionally, the limiting part 32 is an L-shaped block, and the L-shaped block is detachably connected with one end of the detection plate 3 close to the temperature measuring instrument 1.

[0062] As shown in Figure 4As shown, one face of the L-shaped stopper can be detachably connected with the detection plate 3 through a threaded hole, a buckle slot or the like interface, and the other face of the L-shaped stopper can limit the further movement of the detection plate 3, so as to ensure that the temperature sensor 2 can be stably located at the predetermined measurement position, avoid affecting the measurement accuracy due to vibration or external force interference, and also improve the measurement reliability of the temperature measuring device.

[0063] Wherein, the L-shaped stopper is detachably connected with the end of the detection plate 3 close to the temperature measuring instrument 1, so that under the driving of the conveying belt, the abutment of the L-shaped stopper and the outer wall of the welding lamp box can keep the detection plate 3 stably at the predetermined measurement position in the welding lamp box, avoid affecting the measurement accuracy due to vibration or external force interference, and also improve the measurement reliability of the temperature measuring device.

[0064] Optionally, the ratio of the depth of the recess 31 to the thickness of the detection plate 3 ranges from 1:6 to 1:2.

[0065] Specifically, the ratio of the depth of the recess 31 to the thickness of the detection plate 3 ranges from 1:6 to 1:2. On the one hand, as the mounting position of the temperature sensor 2, the recess 31 can realize rapid positioning and installation and efficient heat conduction between the temperature sensor 2 and the detection plate 3, reduce the loss and interference in the heat transfer process, and thus improve the accuracy of temperature measurement. On the other hand, it is also convenient for the recess 31 on the detection plate 3 to be conveniently formed, avoiding that the overall strength of the detection plate 3 is affected by the recess 31 being too deep.

[0066] Optionally, the thickness of the detection plate 3 ranges from 2mm to 3mm, which can facilitate the opening of the recess 31 on the detection plate 3, and also ensure the overall strength of the detection plate 3.

[0067] In an embodiment, the size of the detection plate 3 can be set to 105mm*210mm, close to the size of a conventional silicon wafer, so as to simulate the welding position on the silicon wafer.

[0068] Optionally, along the cross section of the detection plate 3, the size of the recess 31 ranges from 4mm to 7mm.

[0069] Specifically, the recess 31 can be set to be circular, rectangular or other shapes, which is convenient for adapting to temperature sensors 2 of different shapes, so as to improve the versatility of the temperature measuring device. Wherein, the size of the recess 31 ranges from 4mm to 7mm, which can facilitate the mounting of the temperature sensor 2 and ensure the connection tightness of the two, and also avoid affecting the overall strength of the detection plate 3 due to the recess 31 being too large in size.

[0070] Optionally, the number of the recesses 31 is multiple, and the multiple recesses 31 are uniformly distributed or arrayed along the cross section of the detection plate 3.

[0071] Specifically, by arranging a plurality of recesses 31 on the detection plate 3, the connection range of the temperature sensor 2 can be increased, and the measurement range of the temperature measuring device can be improved, so as to facilitate temperature measurement of different areas in the welding lamp box.

[0072] In one embodiment, the plurality of recesses 31 can be uniformly distributed along the cross section of the detection plate 3, which can facilitate rapid prototyping of the recesses 31 on the detection plate 3, thereby reducing the assembly difficulty of the temperature measuring device, and improving the structural symmetry and aesthetics of the detection plate 3.

[0073] In another embodiment, the plurality of recesses 31 can also be arranged in an array along the cross section of the detection plate 3, which can adapt to different detection requirements and improve the flexibility of the temperature measuring device.

[0074] Optionally, the spacing between two adjacent recesses 31 is in the range of 15mm to 20mm, which can avoid the difficulty in prototyping caused by the proximity of the plurality of recesses 31, facilitate rapid prototyping of the plurality of recesses 31 on the detection plate 3, and avoid interference with the mounting of the temperature sensor 2 caused by the proximity of the two adjacent recesses 31, thereby reducing the assembly difficulty of the temperature measuring device. In addition, maintaining the spacing between two adjacent recesses 31 in the range of 15mm to 20mm can also improve the space utilization of the surface of the detection plate 3, thereby improving the measurement capability of the temperature measuring device.

[0075] Optionally, each of the detection areas is of the same size, and the temperature sensor 2 is located in the middle of the corresponding detection area.

[0076] Specifically, arranging a plurality of detection areas of the same size can facilitate rapid division of the plurality of detection areas on the detection plate 3, and also balance the measurement range of the plurality of temperature sensors 2, thereby improving the reliability of the measurement structure. In addition, locating the temperature sensor 2 in the middle of the corresponding detection area can also facilitate obtaining more accurate measurement results in the middle.

[0077] Optionally, the detection plate 3 is a rectangular plate, the length dimension of the detection plate 3 is in the range of 180mm to 230mm, and the short dimension of the detection plate 3 is in the range of 90mm to 115mm, so that the detection plate 3 can simulate the size of the half silicon wafer during string welding, thereby facilitating the arrangement of recesses on the detection plate 3 to simulate the welding position of the half silicon wafer, and thereby achieving reliable measurement of the temperature of the silicon wafer welding position.

[0078] Optionally, the temperature sensor 2 is sleeved with a heat insulation shell on the outside, which can protect the temperature sensor 2, prolong the service life, and avoid the interference of the high temperature of the welding lamp box on the measurement result of the temperature sensor 2, thereby ensuring the measurement reliability of the temperature measuring device. The heat insulation shell can be made of polyurethane, polystyrene foam plastic, rubber plastic and other heat insulation materials.

[0079] Optionally, the detection plate 3 is an aluminum alloy plate.

[0080] Specifically, the thermal conductivity of silicon is 150 W / m·K, and the thermal conductivity of aluminum alloy is 155 W / m·K. The aluminum alloy is used to manufacture the detection plate 3, so that the thermal conductivity of the detection plate 3 is close to that of the silicon wafer, thereby the recess 31 on the detection plate 3 can be used to simulate the welding position of the silicon wafer, so as to realize the temperature measurement of the welding position when the silicon wafer is welded.

[0081] Optionally, the temperature sensor 2 is a thermocouple, and the second end of the thermocouple is adhered to the recess 31 by conductive silver paste or conductive glue.

[0082] Specifically, by adhering the second end of the thermocouple to the recess 31, good thermal contact between the thermocouple and the detection plate 3 can be ensured, thereby reducing the thermal resistance, so that the thermocouple can more accurately reflect the actual temperature of the recess 31 on the detection plate 3, and the temperature measurement accuracy is improved.

[0083] The conductive silver paste or conductive glue is used as the adhesive, which has good conductivity and strong adhesion, thereby ensuring the firm and reliable connection between the thermocouple and the recess 31, and avoiding heat accumulation, so that stable and reliable temperature measurement performance can be maintained even in long-term use or harsh environment.

[0084] The above embodiments mainly describe the differences between the embodiments, and the different optimization features between the embodiments can be combined to form a better embodiment without contradiction. Considering the brevity of the text, the details are not repeated here.

[0085] Although some specific embodiments of the present application have been described in detail by examples, those skilled in the art should understand that the above examples are only for illustration, but not for limiting the scope of the present application. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A temperature measuring device for measuring the temperature within a light box for a welding lamp, characterized in that The utility model relates to a temperature measuring device for welding lamp box, comprising: a measuring part comprising a temperature measuring instrument (1) and at least one temperature sensor (2), the first end of the temperature sensor (2) being connected with the temperature measuring instrument (1); a detection plate (3) having at least one recess (31) for connecting the second end of the corresponding temperature sensor (2) so that the temperature measuring instrument (1) can measure the temperature at the recess (31); the end of the detection plate (3) is detachably connected with a limiting part (32) for abutting against the welding lamp box to limit the detection plate (3); wherein the number of recesses (31) is not less than the number of temperature sensors (2), and the detection plate (3) has a plurality of detection areas, each of which is connected with one temperature sensor (2).

2. The temperature measuring device according to claim 1, characterized in that The limiting part (32) is an L-shaped stopper which is detachably connected with the end of the detection plate (3) close to the temperature measuring instrument (1).

3. The temperature measuring device according to claim 1, wherein The ratio of the depth of the recess (31) to the thickness of the detection plate (3) ranges from 1:6 to 1:

2.

4. The temperature measuring device according to claim 3, characterized in that The thickness of the detection plate (3) ranges from 2mm to 3mm.

5. The temperature measuring device according to claim 3, wherein The size of the recess (31) along the cross section of the detection plate (3) ranges from 4mm to 7mm.

6. The temperature measuring device according to claim 1, wherein The number of recesses (31) is multiple, and the multiple recesses (31) are uniformly distributed or arrayed along the cross section of the detection plate (3).

7. The temperature measuring device according to claim 6, characterized in that The spacing between two adjacent recesses (31) ranges from 15mm to 20mm.

8. The temperature measuring device according to claim 1, wherein Each detection area is of the same size, and the temperature sensor (2) is located in the middle of the corresponding detection area.

9. The temperature measuring device according to claim 1, wherein The detection plate (3) is a rectangular plate, the long side of which ranges from 180mm to 230mm, and the short side of which ranges from 90mm to 115mm.

10. The temperature measuring device according to claim 1, wherein The outer side of the temperature sensor (2) is sleeved with a heat insulation shell.

11. The temperature measuring device according to claim 1, wherein The detection plate (3) is an aluminum alloy plate.

12. The temperature measuring device according to any one of claims 1 to 11, characterized in that The temperature sensor (2) is a thermocouple, and the second end of the thermocouple is adhered to the recess (31) through conductive silver paste or conductive adhesive.

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