Armored thermocouple sensor, temperature detection system and vehicle

Abstract

The utility model discloses an armored thermocouple sensor, a temperature detection system and a vehicle, the armored thermocouple sensor comprises an armored thermocouple, a signal transmitter and a protective housing, the signal transmitter is electrically connected with the armored thermocouple and is used for sending a temperature signal to the outside; the protective shell comprises a shell body and a fixing structure connected with the shell body, the sheathed thermocouple is installed in the shell body, at least part of the sheathed thermocouple extends out of the shell body, the signal transmitter is detachably connected with the protective shell, and the fixing structure is used for fixing the shell body on an external structure. According to the sheathed thermocouple sensor provided by the utility model, the sheathed thermocouple can be well installed by arranging the fixing structure on the protective shell, and the sheathed thermocouple is small in size, so that multi-point arrangement can be realized, and the temperature change of a plurality of positions of the piece to be detected can be quickly responded.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to an armored thermocouple sensor, a temperature detection system and a vehicle. Background Art

[0002] Under the increasingly stringent requirements of automobile performance, vehicle structure, and safety assurance in the automotive industry, various companies are still actively maintaining the trend of introducing new processes and materials in various links of automobile design, production, and manufacturing. Compared with traditional fuel vehicles, new energy vehicles have introduced more electrified systems and components such as batteries, motors, electronic controls, and smart cockpit electronics, which greatly improves the driving convenience of drivers, the comfort of passengers, and the driving quality of the whole vehicle;

[0003] But what followed was more accidents of thermal runaway caused by new energy vehicles, which brought huge personal and property losses to new energy consumers. The battery thermal management and temperature detection devices in related technologies have complex structures, high assembly difficulty, and are not easy to install and arrange in multiple locations and multiple points. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide an armored thermocouple sensor, which has a simple structure, is easy to disassemble and assemble, and can be arranged at multiple points.

[0005] According to the embodiment of the utility model, the armored thermocouple sensor includes: an armored thermocouple; a signal transmitter, which is electrically connected to the armored thermocouple and is used to send a temperature signal to the outside; a protective shell, which includes a shell body and a fixing structure connected to the shell body, the armored thermocouple is installed in the shell body and at least partially extends out of the shell body, the signal transmitter is detachably connected to the protective shell, and the fixing structure is used to fix the shell body to an external structure.

[0006] According to the armored thermocouple sensor of the embodiment of the utility model, the armored thermocouple can be better installed by setting a fixed structure on the protective shell, so that the surface temperature of the part to be detected can be better detected. The armored thermocouple is small in size and can be easily installed at any position of the part to be detected. Moreover, multiple armored thermocouples can be set on the surface of the part to be detected, thereby realizing a multi-point arrangement, so as to quickly respond to temperature changes at multiple positions of the part to be detected.

[0007] In addition, the armored thermocouple sensor according to the utility model may also have the following additional technical features:

[0008] In some embodiments of the utility model, the shell body is a hollow column with an opening at one end, a detection window is provided at the end of the shell body away from the opening, the armored thermocouple is arranged in the shell body and partially extends out of the detection window, and the signal transmitter is detachably installed at the opening.

[0009] In some embodiments of the utility model, the armored thermocouple includes: a thermocouple conductor, an insulating member and a metal protective shell, the thermocouple conductor is connected to the signal transmitter, the insulating member is arranged between the thermocouple conductor and the metal protective shell, the armored thermocouple also includes a heat conductor, and the heat conductor is arranged in the detection window, which is used to abut against the part to be detected and to transfer heat toward the thermocouple conductor.

[0010] In some embodiments of the utility model, the fixed structure includes a connector and / or a fixed frame, the fixed frame is suitable for being fixedly connected to an external structure through a fixing member, the connector and the portion of the armored thermocouple extending out of the outer shell body are located on the same side of the outer shell body, and the fastening direction of the fixed frame is the same as the plug-in direction of the connector.

[0011] In some embodiments of the present invention, the shell body includes a first shell and a second shell connected to each other, the armored thermocouple is located in the first shell, the signal transmitter is detachably connected to the second shell, and the first shell and the second shell are both injection molded parts and made of different materials.

[0012] In some embodiments of the present invention, the protective shell is an injection-molded part, and is integrally injection-molded on the outer surface of the armored thermocouple.

[0013] In some embodiments of the present invention, the signal transmitter includes a wired signal transmitter and / or a wireless signal transmitter.

[0014] In some embodiments of the utility model, the signal transmitter is a wireless signal transmitter, including a transmitter housing and components arranged in the transmitter housing, and the components include: a power storage element capable of wireless charging, a signal converter, a signal transmitter, and a signal receiver.

[0015] The utility model also provides a temperature detection system having the armored thermocouple sensor of the above embodiment.

[0016] According to the embodiment of the utility model, the temperature detection system includes an armored thermocouple sensor and a temperature analyzer. There are multiple armored thermocouple sensors, which are arranged in an array on the surface of the object to be detected. The temperature analyzer is used to obtain temperature information emitted by the multiple armored thermocouple sensors and issue control instructions according to the temperature information emitted by each thermocouple sensor.

[0017] According to the temperature detection system of the embodiment of the utility model, the temperature of multiple positions on the surface of the detected object can be detected well, the response speed is fast, and the accuracy of temperature detection is high.

[0018] The utility model also provides a vehicle having the temperature detection system of the above embodiment.

[0019] According to the vehicle of the present invention, by being provided with the temperature detection system of the above-mentioned embodiment, the temperature of various positions of the vehicle can be better detected, so that when thermal runaway occurs in the vehicle, a rapid response can be made, thereby providing the driver and passengers with more time to extinguish the fire or escape.

[0020] In addition, the temperature detection system of the present application is different from the thermal management system inside the battery. It can be arranged at any position of the vehicle, and can provide the vehicle with higher risk resistance and saturated temperature detection capabilities. When it is arranged on the battery at multiple points, even if the thermal management system inside the battery is damaged, the battery temperature can be well detected, and the reliability is high. In addition, the assembly conditions of the armored thermocouple sensor of the present application are simple, and the installation space required is small. It can be installed above the battery, on the floor of the passenger compartment, inside the seat, inside the ABCD column trim, in the trunk, spare tire slot, ceiling, door and other locations. In addition, the armored thermocouple sensor has a fast response speed, and has the characteristics of insulation and isolation from water vapor corrosion, and is also easy to disassemble and repair.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 It is a schematic structural diagram of an armored thermocouple sensor according to an embodiment of the utility model.

[0024] Figure 2 It is a cross-sectional view of an armored thermocouple and a first shell of an armored thermocouple sensor according to an embodiment of the utility model.

[0025] Figure 3 It is a structural schematic diagram of a signal transmitter of an armored thermocouple sensor according to an embodiment of the utility model.

[0026] Reference numerals:

[0027] Armored thermocouple sensor 100,

[0028] Thermocouple conductor 11, thermocouple resistor 111, thermocouple wire 112, insulating member 12, metal protective shell 13, heat conductive member 14, signal transmitter 20, anti-misconnection protrusion 201, shell body 31, first shell 311, second shell 312, opening 314, fixing structure 32, connector 321, fixing frame 322. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, 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. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0031] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] Reference below Figure 1-Figure 3 Describe the armored thermocouple sensor 100 according to the embodiment of the utility model,

[0033] like Figure 1-Figure 3As shown, the armored thermocouple sensor 100 according to the utility model includes an armored thermocouple, a signal transmitter 20 and a protective shell. The armored thermocouple is used as a temperature measurement sensor, usually in conjunction with a temperature transmitter, a regulator and a display instrument, etc., to form a process control system, which is used to directly measure or control the temperature of fluids, steam and gaseous media and solid surfaces within the range of 0-1800°C in various production processes. The armored thermocouple has many advantages such as bendability, high pressure resistance, fast thermal response time and durability. Like the industrial assembled thermocouple, it is used as a temperature measurement sensor, usually in conjunction with a display instrument, a recording instrument and an electronic regulator.

[0034] The signal transmitter 20 is electrically connected to the armored thermocouple, and the signal transmitter 20 is used to send a temperature signal to the outside. That is to say, when the armored thermocouple contacts the object to be detected, the temperature information of the surface of the object to be detected can be obtained. After obtaining the temperature information, the armored thermocouple can generate a thermoelectric potential signal and transmit the thermoelectric potential signal to the signal transmitter 20. After obtaining the thermoelectric potential signal, the signal transmitter 20 can directly send the thermoelectric potential signal, and then obtain the temperature information after processing by an external signal processor. Alternatively, the signal transmitter 20 can convert the thermoelectric potential signal into temperature information and then transmit the temperature information to the outside.

[0035] like Figure 1 and Figure 2 As shown, the protective housing includes a housing body 31 and a fixing structure 32 connected to the housing body 31, the armored thermocouple is installed in the housing body 31, and at least partially extends from the housing body 31, the signal transmitter 20 is detachably connected to the protective housing, and the fixing structure 32 is used to fix the housing body 31 to an external structure. The external structure can be a structure that needs to detect temperature, such as a vehicle body, a battery, an exhaust system, a braking system, an engine, etc., which will not be described in detail in the following examples.

[0036] That is to say, by exposing part of the armored thermocouple from the outer shell body 31, the armored thermocouple can be better brought into direct contact with the part to be detected, which is beneficial to improving the temperature detection accuracy, and the outer shell body 31 can also better protect the armored thermocouple; by providing a fixed structure 32 on the protective outer shell, the armored thermocouple sensor 100 can be installed on the external structure through the fixed structure 32, which can be beneficial to the assembly of the armored thermocouple sensor 100, so as to facilitate the real-time detection of the part to be detected. Taking new energy vehicles as an example, the armored thermocouple sensor 100 can be installed at any position of the new energy vehicle, and the temperature of each position of the new energy vehicle can be detected in real time, so as to better reduce the damage caused by thermal runaway of the new energy vehicle.

[0037] In addition, it should be noted that the armored thermocouple is relatively small in size. The armored thermocouple sensor 100 of the present application can be easily installed at any position of the vehicle through the fixed structure 32. Taking the battery of a new energy vehicle as an example, the battery includes multiple battery modules, and multiple armored thermocouple sensors 100 can be installed on the battery, and the temperatures of multiple battery modules can be detected in real time one by one. Moreover, the armored thermocouple has a fast temperature response speed. When the battery has thermal runaway, it can provide the driver and passengers with more time to extinguish the fire or even escape, thereby better ensuring the safety of the driver and passengers.

[0038] Therefore, according to the armored thermocouple sensor 100 of the embodiment of the utility model, by setting a fixed structure 32 on the protective shell, the armored thermocouple can be better installed, so that the surface temperature of the part to be detected can be better detected. The armored thermocouple is small in size and can be easily installed at any position of the part to be detected, and multiple armored thermocouples can be set on the surface of the part to be detected, thereby realizing a multi-point arrangement to quickly respond to temperature changes at multiple positions of the part to be detected.

[0039] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the shell body 31 is a hollow column with an opening 314 at one end. A detection window is provided at the end of the shell body 31 away from the opening 314. The armored thermocouple is provided in the shell body 31 and partially extends out of the detection window. The signal transmitter 20 is detachably installed at the opening 314. In other words, the armored thermocouple and the signal transmitter 20 are respectively installed at both ends of the shell body 31, so that the armored thermocouple is not easily affected when the signal transmitter 20 is disassembled. Optionally, the detection window can be provided on the outer peripheral side of the shell body 31. Of course, it can also be provided at other positions, which is not limited by the present application. In addition, through the detachable assembly method of the signal transmitter 20, the signal transmitter 20 can be replaced or repaired better.

[0040] Alternatively, if Figure 3 As shown, the signal transmitter 20 may be provided with an anti-misconnection protrusion 201, and an anti-misconnection groove may be provided in the opening 314. The cooperation between the first positioning portion and the second positioning portion can avoid the signal transmitter 20 from being plugged in the wrong way when being assembled, thereby affecting the electrical connection between the signal transmitter 20 and the thermocouple conductor 11.

[0041] Alternatively, if Figure 1 and Figure 2As shown, the armored thermocouple includes: a thermocouple conductor 11, an insulating member 12 and a metal protective shell 13, the thermocouple conductor 11 is connected to the signal transmitter 20, the insulating member 12 is arranged between the thermocouple conductor 11 and the metal protective shell 13, and the armored thermocouple also includes a heat conductor 14, which is arranged in the detection window, for abutting against the object to be detected, and for transferring heat toward the thermocouple conductor 11. In other words, the thermocouple conductor 11 may not directly contact the outer surface of the object to be detected, and damage to the thermocouple conductor 11 can be avoided. Optionally, the thermocouple conductor 11 may include a thermocouple resistor 111 and a thermocouple wire 112, and the thermocouple wire 112 is connected between the thermocouple resistor 111 and the signal transmitter 20. By arranging the thermocouple wire 112, the volume of the thermocouple resistor 111 can be reduced, thereby reducing the production cost.

[0042] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the fixed structure 32 includes a plug-in component 321 and / or a fixed frame 322, and the fixed frame 322 is suitable for being fixedly connected to the external structure through a fixing component. Figure 2 As shown in a specific example, the fixed structure 32 includes a connector 321 and a fixed frame 322. The connector 321 can be positioned on the external structure by plugging, and then the fixed frame 322 is provided with bolt holes, and the fixed frame 322 can be fixed to the external structure by bolts. Since the fixed structure 32 is first positioned by the connector 321, the installation accuracy of the armored thermocouple sensor 100 after fixation is better, and the temperature at the predetermined position can be better detected. In addition, the armored thermocouple sensor 100 of the present application has better stability after installation.

[0043] Alternatively, if Figure 1 and Figure 2 As shown, the connector 321 and the part of the armored thermocouple extending out of the shell body 31 are located on the same side of the shell body 31, and the fastening direction of the fixed frame 322 is the same as the plugging direction of the connector 321. Therefore, the connector 321 can provide a certain pressure to the armored thermocouple and the surface of the part to be detected when plugged in, so that the armored thermocouple can better contact the surface of the part to be detected, so as to better detect the temperature of the surface of the part to be detected. Similarly, the fixed frame 322 can also adjust the contact pressure between the armored thermocouple and the surface of the part to be detected when fastened, so that the armored thermocouple can better contact the surface of the part to be detected, so as to better detect the temperature of the surface of the part to be detected.

[0044] In some embodiments of the present invention, Figure 1 and Figure 2As shown, the housing body 31 includes a first housing 311 and a second housing 312 connected to each other, the armored thermocouple is located in the first housing 311, the signal transmitter 20 is detachably connected to the second housing 312, and the first housing 311 and the second housing 312 are both injection molded parts, and the materials are different. In other words, by making the first housing 311 and the second housing 312 consist of different materials, materials of different costs can be used according to actual needs, and the production cost of the housing body 31 can be reduced to a certain extent.

[0045] In some embodiments of the utility model, the protective shell is an injection molded part and is integrally injection molded on the outer surface of the armored thermocouple. Therefore, the production method of the protective shell is relatively simple, and the sealing of the protective shell can be better guaranteed, and the armored thermocouple in the protective shell can be better protected and insulated.

[0046] Optionally, the injection molding material of the protective shell includes but is not limited to: PP, EPDM, PE, PA6, PA66, PC, PBT, ABS, PVC, PET, etc. It is not recommended to use metal materials, which are easy to conduct electricity and affect the transmission of electric thermocouple electrical signals. The high elasticity, oxidation resistance and corrosion resistance of the injection molding material can provide a long-term protection for the armored thermocouple by providing buffering, shock absorption and air isolation.

[0047] In some embodiments of the present invention, the signal transmitter 20 includes a wired signal transmitter and / or a wireless signal transmitter, that is, the signal transmitter 20 can be connected to an external device by connecting a wire, so as to transmit the temperature information obtained by the armored thermocouple. The signal transmitter 20 can also transmit signals to an external device by wireless transmission without connecting a wire. The signal transmitter 20 can also have both wired and wireless transmission modes at the same time, and the present application is not limited thereto.

[0048] In some embodiments of the utility model, the signal transmitter 20 is a wireless signal transmitter, including a transmitter housing and components arranged in the transmitter housing, and the components include: a power storage element capable of wireless charging, a signal converter, a signal transmitter, and a signal receiver. In other words, by providing a power storage element capable of wireless charging, the endurance of the signal transmitter 20 can be better guaranteed, and by providing a signal converter, the thermoelectric potential information obtained by the armored thermocouple can be converted into temperature information and then transmitted, and by providing a signal transmitter and a signal receiver, it can better interact with the new wireless signal of the external device.

[0049] Optionally, the components may include circuit boards, capacitors, resistors, inductors, single-chip microcomputer chips, capacitors, MOS tubes, coils, BIOS chips, signal receivers / transmitters, micro batteries, electronic transformers, relays, crystal oscillator chips, etc.

[0050] The utility model also provides a temperature detection system having the armored thermocouple sensor 100 of the above embodiment.

[0051] According to the embodiment of the utility model, the temperature detection system includes an armored thermocouple sensor 100 and a temperature analyzer. The armored thermocouple sensor 100 is provided with multiple armored thermocouple sensors 100, and the multiple armored thermocouple sensors 100 are arranged in an array on the surface of the object to be detected. The temperature analyzer is used to obtain the temperature information emitted by the multiple armored thermocouple sensors 100, and issue a control instruction according to the temperature information emitted by each thermocouple sensor.

[0052] Optionally, the signal transmitter 20 of the armored thermocouple sensor 100 may have the ability to encode an identification number to facilitate array arrangement and signal identification without confusing the signal source.

[0053] According to the temperature detection system of the embodiment of the utility model, the temperature of multiple positions on the surface of the detected object can be detected well, the response speed is fast, and the accuracy of temperature detection is high.

[0054] The utility model also provides a vehicle having the temperature detection system of the above embodiment.

[0055] According to the vehicle of the present invention, by being provided with the temperature detection system of the above-mentioned embodiment, the temperature of various positions of the vehicle can be better detected, so that when thermal runaway occurs in the vehicle, a rapid response can be made, thereby providing the driver and passengers with more time to extinguish the fire or escape.

[0056] In addition, the temperature detection system of the present application is different from the thermal management system inside the battery. It can be arranged at any position of the vehicle, and can provide the vehicle with higher risk resistance and saturated temperature detection capabilities. When it is arranged on the battery at multiple points, even if the thermal management system inside the battery is damaged, the battery temperature can be well detected, and the reliability is high. In addition, the assembly conditions of the armored thermocouple sensor 100 of the present application are simple, and the installation space required is small. It can be installed above the battery, on the floor of the passenger compartment, inside the seat, inside the ABCD column trim, in the trunk, spare tire slot, ceiling, door and other locations. In addition, the armored thermocouple sensor 100 has a fast response speed, and has the characteristics of insulation and isolation from water vapor corrosion, and is also easy to disassemble and repair.

[0057] The armored thermocouple sensor 100, the temperature detection system and other components and operations of the vehicle according to the embodiment of the utility model are well known to ordinary technicians in the field and will not be described in detail here.

[0058] In the description of this specification, the description with reference to the terms "some embodiments", "optionally", "further" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0059] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An armored thermocouple sensor, characterized in that: include: Armored thermocouple; A signal transmitter, the signal transmitter is electrically connected to the armored thermocouple and is used to send a temperature signal to the outside; A protective shell, the protective shell includes a shell body and a fixing structure connected to the shell body, the armored thermocouple is installed in the shell body and at least partially extends from the shell body, the signal transmitter is detachably connected to the protective shell, and the fixing structure is used to fix the shell body to an external structure.

2. The armored thermocouple sensor according to claim 1, characterized in that: The shell body is a hollow column with an opening at one end. A detection window is provided at the end of the shell body away from the opening. The armored thermocouple is arranged in the shell body and partially extends out of the detection window. The signal transmitter is detachably mounted at the opening.

3. The armored thermocouple sensor according to claim 2, characterized in that: The armored thermocouple includes: a thermocouple conductor, an insulating member and a metal protective shell. The thermocouple conductor is connected to the signal transmitter. The insulating member is arranged between the thermocouple conductor and the metal protective shell. The armored thermocouple also includes a heat conductor. The heat conductor is arranged in the detection window, used to abut against the part to be detected, and used to transfer heat toward the thermocouple conductor.

4. The armored thermocouple sensor according to claim 1, characterized in that: The fixing structure includes a connector and / or a fixing frame, the fixing frame is suitable for being fixedly connected to an external structure via a fixing frame, the connector and the portion of the armored thermocouple extending out of the outer shell body are located on the same side of the outer shell body, and the fastening direction of the fixing frame is the same as the plugging direction of the connector.

5. The armored thermocouple sensor according to claim 1, characterized in that: The shell body comprises a first shell and a second shell which are connected to each other. The armored thermocouple is located in the first shell. The signal transmitter is detachably connected to the second shell. The first shell and the second shell are both injection molded parts and are made of different materials.

6. The armored thermocouple sensor according to any one of claims 1 to 5, characterized in that: The protective shell is an injection-molded part, and is integrally injection-molded on the outer surface of the armored thermocouple.

7. The armored thermocouple sensor according to claim 1, characterized in that: The signal transmitter includes a wired signal transmitter and / or a wireless signal transmitter.

8. The armored thermocouple sensor according to claim 1, characterized in that: The signal transmitter is a wireless signal transmitter, including a transmitter housing and components arranged in the transmitter housing, wherein the components include: a power storage element capable of wireless charging, a signal converter, a signal transmitter, and a signal receiver.

9. A temperature detection system, characterized in that: include: The armored thermocouple sensor according to any one of claims 1 to 8, wherein a plurality of the armored thermocouple sensors are provided, and the plurality of the armored thermocouple sensors are arranged in an array on the surface of the object to be detected; A temperature analyzer is used to obtain temperature information sent by a plurality of the armored thermocouple sensors and to send control instructions according to the temperature information sent by each of the thermocouple sensors.

10. A vehicle, characterized in that: Includes the temperature detection system as described in claim 9.

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