Automobile heat source surface temperature detection device
By designing a device for surface temperature detection of automobile heat source, the combination of bracket and clamp is used to ensure that the measuring end of the thermocouple abuts the heat source surface, the problem of the contact of the thermocouple's peripheral wall affecting the measurement accuracy is solved, and higher temperature measurement accuracy and convenience of use are achieved.
Patent Information
- Application Number
- CN202510076028.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2025-05-06
AI Technical Summary
In the existing automotive heat source parts temperature measurement methods, the outer peripheral wall of the thermocouple comes into contact with the surface of the part, affecting the measurement accuracy.
A temperature detection device for surface temperature of automobile heat source is designed. Through the combination of bracket and clamp, the measuring end of the thermocouple is ensured to abut the heat source surface, and the signal end extends in a direction away from the heat source surface, so as to prevent the thermocouple's outer peripheral wall from contacting the heat source surface.
Improves the accuracy of temperature measurement and makes use more convenient through a simple installation structure.
Smart Images
Figure CN119935335A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of temperature detection, in particular to a device for detecting the surface temperature of a heat source of an automobile. Background Art
[0002] For the development and design of the thermal performance of the whole vehicle, it is very important to collect temperature data of the key parts of the whole vehicle. Thermal performance affects both the safety of the car and the development cost of the car. A large number of thermal performance tests and simulation analyses have shown that the thermal performance of the car is mainly affected by the high-temperature heat source parts of the car, and the results of the early performance development simulation analysis are closely related to the accuracy of the surface temperature measurement of the high-temperature heat source parts; therefore, it is particularly important to accurately collect the surface temperature data of the high-temperature heat source parts. At present, the temperature measurement of the heat source parts is to directly bind the thermocouple to the part, or to drill a hole in the part to insert the thermocouple for measurement. The above two methods make the outer wall of the thermocouple contact with the surface of the part, resulting in heat transfer, which affects the detection accuracy of the thermocouple measuring end. Summary of the invention
[0003] The purpose of the present invention is to provide a device for detecting the surface temperature of a heat source of an automobile, which improves the accuracy of temperature measurement and is easy to install and use.
[0004] In order to achieve the above object, the present invention provides a device for detecting the surface temperature of a heat source of an automobile, comprising:
[0005] A thermocouple having a signal end and a measuring end, wherein the measuring end abuts against a heat source surface, and the signal end extends in a direction away from the heat source surface;
[0006] A bracket, comprising a first mounting portion, a first extending portion, a second extending portion, and a second mounting portion, wherein the first mounting portion is disposed on the surface of the heat source, the first end of the first extending portion is connected to the first end of the first mounting portion, the second end of the first extending portion extends in a direction away from the first mounting portion, the first end of the second extending portion is connected to the second end of the first extending portion, the second end of the second extending portion extends in a direction away from the first mounting portion, the second extending portion and the first mounting portion are parallel to each other, the first end of the second mounting portion is connected to the second end of the second extending portion, the second end of the second mounting portion extends in a direction close to the first mounting portion, and the second mounting portion is parallel to the first extending portion;
[0007] a clamping plate, spaced apart on a side of the second mounting portion away from the second extending portion, the thermocouple being arranged between the clamping plate and the second mounting portion;
[0008] a connecting member, used to connect the clamping plate and the second mounting portion and clamp the thermocouple; and
[0009] The binding member is configured to bind and fix the first mounting portion to the surface of the heat source.
[0010] In some embodiments, the thermocouple is perpendicular to the heat source surface.
[0011] In some embodiments, the bracket includes a folded edge, which includes a connected extension section and a limit section, the extension section is arranged at the second end of the first mounting portion and extends in a direction away from the first mounting portion, the limit section extends in a direction close to the first extension portion, the limit section and the first mounting portion are parallel to each other, and the binding member is arranged between the first mounting portion and the limit section.
[0012] In some embodiments, the length of the limiting section is less than half the length of the first mounting portion.
[0013] In some embodiments, the first extension portion is perpendicular to the first mounting portion and the second extension portion, respectively.
[0014] In some embodiments, the connecting member includes a first bolt, a first nut, a second bolt and a second nut, the clamp has a first hole and a second hole distributed at intervals, the second mounting portion has a third hole and a fourth hole distributed at intervals, the first bolt passes through the first hole and the third hole in sequence and is fixed by the first nut, the second bolt passes through the second hole and the fourth hole in sequence and is fixed by the second nut, and the thermocouple is located between the first bolt and the second bolt.
[0015] In some embodiments, the axial direction of the first bolt is parallel to the axial direction of the second bolt, and the side surface of the clamping plate is parallel to the side surface of the second mounting portion.
[0016] In some embodiments, the length of the thermocouple is greater than the length of the first extension portion, and the length of the first extension portion is greater than the length of the second mounting portion.
[0017] In some embodiments, the binding member is one of iron wire, hose clamp and metal cable tie.
[0018] In some embodiments, the bracket is formed by bending a steel plate.
[0019] The present invention provides a device for detecting the surface temperature of a heat source of an automobile. Compared with the prior art, the device has the following beneficial effects:
[0020] The set thermocouple has a signal end and a measuring end, the measuring end abuts against the surface of the heat source, and the signal end extends in a direction away from the surface of the heat source, so that the outer peripheral wall of the thermocouple will not contact the surface of the heat source. The set bracket includes a first mounting portion, a first extension portion, a second extension portion, and a second mounting portion, and the clamping plate is spaced apart at the side of the second mounting portion away from the second extension portion, so that the thermocouple can be clamped between the clamping plate and the second mounting portion through a connecting piece to stabilize its position, and the binding piece can fix the bracket on the surface of the heat source, making it easy to install and use, while maintaining the accurate measurement posture of the thermocouple, thereby improving the accuracy of temperature measurement. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 A schematic structural diagram of a configuration bundle of an automobile heat source surface temperature detection device provided in some embodiments of the present invention.
[0022] Figure 2 A schematic diagram of the enlarged structure of a bracket of a device for detecting the surface temperature of a heat source in an automobile provided in some embodiments of the present invention.
[0023] Figure 3 A schematic diagram of the enlarged structure of a clamping plate of a vehicle heat source surface temperature detection device provided in some embodiments of the present invention.
[0024] Figure 4 A schematic diagram of a part having an irregular structure surface in which an automobile heat source surface temperature detection device provided in some embodiments of the present invention is installed.
[0025] Figure 5 A schematic diagram of an automobile heat source surface temperature detection device provided in some embodiments of the present invention being installed on a part with a cylindrical surface.
[0026] In the figure: 100, automobile heat source surface temperature detection device; 1, thermocouple; 2, bracket; 21, first mounting portion; 22, first extension portion; 23, second extension portion; 24, second mounting portion; 241, third hole; 242, fourth hole; 25, folding edge; 251, extension section; 252, limiting section; 3, clamping plate; 31, first hole; 32, second hole; 4, connecting piece; 41, first bolt; 42, second bolt; 5, binding piece. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.
[0028] It should be understood that, in the description of the present application, the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. The terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated, that is, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In addition, unless otherwise specified, "multiple" means two or more.
[0029] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.
[0030] like Figure 1-5 As shown, the automobile heat source surface temperature detection device 100 provided by the embodiment of the present invention comprises a thermocouple 1, a bracket 2, a clamping plate 3, a connecting piece 4 and a binding piece 5. Among them, the bracket 2 provides a space for the installation of the thermocouple 1 so that the outer peripheral wall of the thermocouple 1 does not contact the parts, the position of the thermocouple 1 can be fixed by the clamping plate 3, and the position of the bracket 2 can be fixed by the binding piece 5, thereby realizing the installation of the overall structure.
[0031] Thermocouple 1 has a signal end 11 and a measuring end 12, wherein the measuring end 12 abuts against the surface of the heat source, and the signal end 11 extends in a direction away from the surface of the heat source. In this way, the measuring end 12 is used to measure the temperature of the surface of the heat source, and the signal end 11 can transmit the data signal, so that the outer wall of the thermocouple 1 does not contact the surface of the heat source, thereby improving the measurement accuracy. Exemplarily, the model of thermocouple 1 is WRNK-191, and the temperature measurement range is 0-1100°C; thermocouple 1 has a fast thermal response and the highest sensitivity, and can quickly and accurately collect surface temperature data of high-temperature parts of automobiles.
[0032] The bracket 2 includes a first mounting portion 21, a first extension portion 22, a second extension portion 23 and a second mounting portion 24. The first mounting portion 21 is arranged on the surface of the heat source. The first end of the first extension portion 22 is connected to the first end of the first mounting portion 21, and the second end of the first extension portion 22 extends in a direction away from the first mounting portion 21. The first end of the second extension portion 23 is connected to the second end of the first extension portion 22, and the second end of the second extension portion 23 extends in a direction away from the first mounting portion 21. The second extension portion 23 is parallel to the first mounting portion 21. The first end of the second mounting portion 24 is connected to the second end of the second extension portion 23, and the second end of the second mounting portion 24 extends in a direction close to the first mounting portion 21. The second mounting portion 24 is parallel to the first extension portion 22. In this way, the first mounting portion 21 enables the entire bracket 2 to be mounted on the surface of the heat source. The space extended by the first extension portion 22 and the second extension portion 23 is conducive to installing the thermocouple 1, so that the thermocouple 1 will not touch the first mounting portion 21. The second mounting portion 24 is used to install the thermocouple 1.
[0033] The clamping plate 3 is spaced apart on the side of the second mounting portion 24 away from the second extending portion 23, and the thermocouple cloth 1 is placed between the clamping plate 3 and the second mounting portion 24. The position of the thermocouple 1 is stabilized, which is conducive to temperature measurement.
[0034] The connecting member 4 is used to connect the clamping plate 3 and the second mounting portion 24 and to clamp the thermocouple 1. The connecting member 4 makes it easy to install and remove the thermocouple 1.
[0035] The binding member 5 is configured to bind and fix the first mounting portion 21 to the surface of the heat source. The binding member 5 facilitates the installation and removal of the bracket 2.
[0036] When conducting temperature testing, connect the signal terminals 11 of all thermocouples 1 through professional data acquisition equipment, and check whether the data is normal. Turn on the real-time data recording function before the test begins, and collect one data per second. The test conditions are carried out according to the "Automotive Thermal Damage Environment Simulation Chamber Test Specification" standard. After the test is completed, export the data from the equipment as an Excel file to ensure that each data channel corresponds to the associated measurement point. Extract the highest thermal equilibrium temperature data of the parts according to the test conditions based on the temperature of each measurement point.
[0037] Based on the above structural setting, the thermocouple 1 is clamped by tightening the connecting piece 4 between the clamping plate 3 and the second mounting part 24, so that the position of the thermocouple 1 is stabilized, that is, the measuring end 12 abuts against the surface of the heat source to measure the temperature, and the signal end 11 extends in a direction away from the surface of the heat source, so that the outer wall of the thermocouple 1 will not contact the surface of the heat source, thereby improving the measurement accuracy; and the binding piece 5 can fix the bracket 2 on the surface of the heat source, making it easy to install and use.
[0038] like Figure 4 and 5As shown, in some embodiments, the thermocouple 1 is perpendicular to the heat source surface. In this way, the measuring end 12 of the thermocouple 1 always abuts against the heat source surface for temperature measurement, the signal end 11 extends away from the heat source surface, and the outer peripheral wall of the thermocouple 1 does not contact the heat source surface.
[0039] like Figure 1 As shown, in some embodiments, the bracket 2 includes a folded edge 25, and the folded edge 25 includes a connected extension section 251 and a limiting section 252. The extension section 251 is provided at the second end of the first mounting portion 21 and extends in a direction away from the first mounting portion 21. The limiting section 252 extends in a direction close to the first extension portion 22. The limiting section 252 and the first mounting portion 21 are parallel to each other, and the binding member 5 is provided between the first mounting portion 21 and the limiting section 252. In this way, the structural arrangement of the extension section 251 and the limiting section 252 can limit the position of the binding member 5 and prevent it from slipping off the first mounting portion 21.
[0040] Specifically, in some embodiments, the length of the limiting section 252 is less than half the length of the first mounting portion 21 , so that it is convenient to install the binding member 5 on the first mounting portion 21 .
[0041] like Figure 2 As shown, in some embodiments, the first extension portion 22 is perpendicular to the first mounting portion 21 and the second extension portion 23 respectively. In this way, the bracket structure is made compact.
[0042] like Figure 1-3 As shown, in some embodiments, the connecting member 4 includes a first bolt 41, a first nut, a second bolt 42, and a second nut. The clamping plate 3 has a first hole 31 and a second hole 32 that are spaced apart. The second mounting portion 24 has a third hole 241 and a fourth hole 242 that are spaced apart. The first bolt 41 passes through the first hole 31 and the third hole 241 in sequence and is fixed by the first nut. The second bolt 42 passes through the second hole 32 and the fourth hole 242 in sequence and is fixed by the second nut. The thermocouple 1 is located between the first bolt 41 and the second bolt 42. This facilitates installation and disassembly between the clamping plate 3 and the second mounting portion 24.
[0043] like Figure 1 As shown, in some embodiments, the axial direction of the first bolt 41 is parallel to the axial direction of the second bolt 42, and the side surface of the clamping plate 3 is parallel to the side surface of the second mounting portion 24. This is beneficial to the installation of the thermocouple 1.
[0044] like Figure 1 As shown, in some embodiments, the length of the thermocouple 1 is greater than the length of the first extension portion 22, and the length of the first extension portion 22 is greater than the length of the second mounting portion 24. This arrangement is conducive to the thermocouple 1 extending out of the first mounting portion 21 to measure the temperature of the heat source surface.
[0045] like Figure 4 and 5 As shown, in some embodiments, the binding member 5 is one of iron wire, hose clamp and metal tie. When facing special working conditions such as the first mounting portion 21 being suspended, the binding member 5 and the first mounting portion 21 can be fixed, such as by welding, riveting and bolting, to ensure the stability of the structure.
[0046] In some embodiments, the bracket 2 is formed by bending a steel plate, so that the bracket 2 has a simple structure and reduces the processing and manufacturing cost of the bracket 2.
[0047] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.
Claims
1. A device for detecting the surface temperature of a heat source of an automobile, characterized in that: include: A thermocouple having a signal end and a measuring end, wherein the measuring end abuts against a heat source surface, and the signal end extends in a direction away from the heat source surface; A bracket, comprising a first mounting portion, a first extending portion, a second extending portion, and a second mounting portion, wherein the first mounting portion is disposed on the surface of the heat source, the first end of the first extending portion is connected to the first end of the first mounting portion, the second end of the first extending portion extends in a direction away from the first mounting portion, the first end of the second extending portion is connected to the second end of the first extending portion, the second end of the second extending portion extends in a direction away from the first mounting portion, the second extending portion and the first mounting portion are parallel to each other, the first end of the second mounting portion is connected to the second end of the second extending portion, the second end of the second mounting portion extends in a direction close to the first mounting portion, and the second mounting portion is parallel to the first extending portion; a clamping plate, spaced apart at a side of the second mounting portion away from the second extending portion, the thermocouple being arranged between the clamping plate and the second mounting portion; A connecting member, used to connect the clamping plate and the second mounting portion and to clamp the thermocouple; as well as The binding member is configured to bind and fix the first mounting portion to the surface of the heat source.
2. The automobile heat source surface temperature detection device according to claim 1, characterized in that: The thermocouple is perpendicular to the heat source surface.
3. The automobile heat source surface temperature detection device according to claim 1, characterized in that: The bracket includes a folded edge, which includes a connected extension section and a limiting section. The extension section is arranged at the second end of the first mounting portion and extends in a direction away from the first mounting portion. The limiting section extends in a direction close to the first extension portion. The limiting section and the first mounting portion are parallel to each other, and the binding member is arranged between the first mounting portion and the limiting section.
4. The automobile heat source surface temperature detection device according to claim 3, characterized in that: The length of the limiting section is less than half of the length of the first mounting portion.
5. The automobile heat source surface temperature detection device according to claim 1, characterized in that: The first extending portion is perpendicular to the first mounting portion and the second extending portion respectively.
6. The automobile heat source surface temperature detection device according to claim 1, characterized in that: The connecting member includes a first bolt, a first nut, a second bolt and a second nut, the clamp has a first hole and a second hole distributed at intervals, the second mounting portion has a third hole and a fourth hole distributed at intervals, the first bolt passes through the first hole and the third hole in sequence and is fixed by the first nut, the second bolt passes through the second hole and the fourth hole in sequence and is fixed by the second nut, and the thermocouple is located between the first bolt and the second bolt.
7. The automobile heat source surface temperature detection device according to claim 6, characterized in that: The axial direction of the first bolt is parallel to the axial direction of the second bolt, and the side surface of the clamping plate is parallel to the side surface of the second mounting portion.
8. The automobile heat source surface temperature detection device according to claim 1, characterized in that: The length of the thermocouple is greater than the length of the first extending portion, and the length of the first extending portion is greater than the length of the second mounting portion.
9. The automobile heat source surface temperature detection device according to claim 1, characterized in that: The binding piece is one of iron wire, throat clamp and metal tie.
10. The automobile heat source surface temperature detection device according to claim 1, characterized in that: The bracket is formed by bending a steel plate.