A pipe assembly, a battery and a vehicle

Abstract

The application provides a pipeline assembly, a battery and a vehicle, and can improve the waterproof performance of the pipeline assembly. The pipeline assembly of the application is used for the temperature adjusting pipeline of the battery, and comprises a pipeline body and a temperature sensor. The temperature sensor is arranged on the outer wall of the pipeline body, and the temperature sensor comprises a thermistor. The outer surface of the thermistor is provided with a waterproof layer, and the thermistor is configured to mutually transfer heat with the pipeline body. The pipeline assembly provided by the application can improve the measurement reliability of the temperature sensor.

Description

Technical Field

[0001] This application relates to the field of pipeline technology, and more particularly to a pipeline assembly, a battery, and a vehicle. Background Technology

[0002] The optimal operating temperature for a battery pack is -30 to 60 degrees Celsius, preferably 10 to 35 degrees Celsius. When the battery pack temperature drops below -10 degrees Celsius, battery activity decreases significantly, charging efficiency is 2 to 3 times lower than at room temperature, and power output is half that at room temperature. To maintain the battery pack temperature within the optimal range, pipes are often used for heating or cooling. A temperature-regulating medium flows through these pipes, exchanging heat with the individual battery cells to heat or cool them.

[0003] Pipelines are often equipped with temperature sensors to detect the temperature of the temperature-regulating medium flowing within them. However, in related technologies, temperature sensors frequently exhibit large measurement errors or even complete failure, resulting in poor measurement reliability. Utility Model Content

[0004] This application provides a pipe assembly, a battery, and a vehicle that can improve the measurement reliability of a temperature sensor.

[0005] In a first aspect, this application provides a pipe assembly for a temperature-regulating pipeline in a battery. The pipe assembly includes a pipe body and a temperature sensor. The temperature sensor is disposed on the outer wall of the pipe body and includes a thermistor. The outer surface of the thermistor is provided with a waterproof layer, and the thermistor is configured to transfer heat with the pipe body.

[0006] By placing the temperature sensor on the outer wall of the pipe body, the thermistor and the pipe body transfer heat to each other to detect the temperature of the temperature-regulating medium inside the pipe. Due to the barrier effect of the pipe body's side wall, the temperature-regulating medium inside the pipe is less likely to directly contact the thermistor, which helps reduce the risks of temperature sensor leakage, short circuits, thermistor corrosion, and resistance value deviation, thus improving the measurement reliability of the temperature sensor. By providing a waterproof layer on the outer surface of the thermistor, the risk of direct contact between the thermistor and water is reduced. Even if the pipe body leaks and the temperature-regulating medium flows out, the waterproof layer prevents water in the flowing temperature-regulating medium from directly contacting the thermistor, further reducing the risks of temperature sensor leakage, short circuits, corrosion, and resistance value deviation. In this way, the side wall of the pipe body and the waterproof layer work together to prevent water from contacting the thermistor inside the pipe. This double barrier significantly reduces the risk of the thermistor coming into contact with water, further improving the measurement reliability of the temperature sensor.

[0007] Combining the first aspect and the above implementation methods, in some possible implementation methods, an installation groove is formed on the outer wall of the pipe body, and the thermistor is disposed in the installation groove.

[0008] By placing the thermistor inside the mounting groove, the stability of the thermistor on the outer wall of the pipe body can be improved, and the outer wall of the pipe body can protect the thermistor, which helps to reduce the risk of damage to the thermistor and improve the reliability of the thermistor.

[0009] In combination with the first aspect and the above implementation methods, in some possible implementation methods, the mounting groove is filled with adhesive, which fixes the temperature sensor to the inner surface of the mounting groove.

[0010] In this way, the temperature sensor is fixed in the mounting groove with adhesive, which helps to improve the stability of the thermistor in the mounting groove. The thermistor is less likely to collide with the inner surface of the mounting groove, which helps to reduce damage to the thermistor and improve its reliability.

[0011] Combining the first aspect and the above-mentioned implementation methods, in some possible implementation methods, the adhesive is a waterproof adhesive.

[0012] By making the adhesive waterproof, it can not only be used to fix the temperature sensor to the mounting slot, but also to block water. Water leaking from the pipeline can pass through the adhesive and reach the waterproof layer, which helps to further reduce the risk of the leaking water coming into contact with the thermistor, thereby improving the measurement reliability of the temperature sensor.

[0013] Combining the first aspect and the above-mentioned implementation methods, in some possible implementation methods, a protrusion is formed on the inner wall of the pipe body, the protrusion forms a mounting cavity, the mounting cavity is part of the mounting groove, and the thermistor is located in the mounting cavity.

[0014] In this way, a protrusion is formed on the inner wall of the pipe body. The contact area between the protrusion and the temperature-regulating medium inside the pipe body is large, making the temperature of the protrusion and the temperature-regulating medium closer. By placing the thermistor in the mounting cavity formed by the protrusion, the temperature of the thermistor is made closer to that of the protrusion, which in turn makes the temperature of the thermistor closer to that of the temperature-regulating medium, thus improving the measurement accuracy of the temperature sensor.

[0015] In combination with the first aspect and the above implementation methods, in some possible implementation methods, the waterproof layer includes a waterproof paint layer.

[0016] In this way, at least a portion of the waterproof layer is formed by coating the outer surface of the thermistor with waterproof paint, which achieves lower cost and better waterproof performance of the paint.

[0017] Combining the first aspect and the above-mentioned implementation methods, in some possible implementation methods, the material of the pipe body is polyamide resin.

[0018] Thus, the pipe body possesses high strength, high toughness, high heat resistance, high insulation, high wear resistance, high fatigue resistance, high corrosion resistance, and high weather resistance, and is relatively easy to process with low processing costs. Furthermore, polyamide resin has a certain degree of water absorption, and water absorbed by the pipe body can easily flow to the vicinity of the thermistor. However, in this application, a waterproof layer is provided on the outer surface of the thermistor. This waterproof layer can block water absorbed by the pipe body, reducing the risk of water directly contacting the thermistor. Therefore, the pipe assembly provided in this application can balance cost, the physical and chemical properties of the pipe body, and the measurement reliability of the temperature sensor.

[0019] Secondly, this application provides a battery, which includes an energy storage module and a temperature regulating pipeline, and also includes a pipeline assembly provided in any of the first aspect and the above implementations. The temperature regulating pipeline is used to circulate a temperature regulating medium, and the temperature regulating pipeline exchanges heat with the energy storage module. The pipeline body is connected to the temperature regulating pipeline.

[0020] By connecting the main pipe to the temperature-regulating pipeline, the temperature sensor can measure the temperature of the temperature-regulating medium with high reliability. This helps to keep the temperature of the temperature-regulating medium within the target range, thereby keeping the temperature of the energy storage module within the target range and improving the power and charging efficiency of the energy storage module.

[0021] In conjunction with the second aspect, in some possible implementations, the battery also includes a housing, with the energy storage module and temperature control pipeline all housed inside the housing, and the pipeline itself passing through the side wall of the housing.

[0022] By inserting the pipe body through the side wall of the enclosure, the temperature sensor can detect the temperature of the temperature regulating medium that has just entered the enclosure (hereinafter referred to as the first temperature) or the temperature of the temperature regulating medium that has just left the enclosure (hereinafter referred to as the second temperature). The first and second temperatures can reflect the overall temperature level inside the enclosure. Compared with collecting the temperature of a certain part inside the enclosure, collecting the first and second temperatures makes it easier to control the temperature level of the entire enclosure, so that all parts inside the enclosure are within the target temperature range, thereby greatly improving the charging efficiency or power of the battery.

[0023] Thirdly, this application provides a vehicle that includes a conduit assembly provided in the first aspect and any of the above-described implementations; or, the vehicle includes a battery provided in the second aspect and any of the above-described implementations.

[0024] The vehicle provided in this application, including the pipe assembly provided in the first aspect and any of the above-described implementations, can achieve the same technical effect, namely, improving the detection reliability of the temperature sensor; or, the vehicle provided in this application, including the battery provided in the second aspect and any of the above-described implementations, can achieve the same technical effect, namely, improving the power and charging efficiency of the energy storage module. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the connection between the pipeline assembly and the battery management system in an embodiment of this application;

[0027] Figure 2 This is a structural schematic diagram of the pipe assembly (connecting lines not shown) in an embodiment of this application;

[0028] Figure 3 yes Figure 2 Cross-sectional view at point AA;

[0029] Figure 4 This is a structural schematic diagram of the pipeline body;

[0030] Figure 5 This is a schematic diagram of the connection between the temperature sensor and the pipe body in an embodiment of this application.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Pipe body; 11. Mounting groove; 111. Mounting cavity; 12. Protrusion; 13. Protrusion; 2. Temperature sensor; 21. Thermistor; 22. Waterproof layer; 23. Circuit board; 24. Connecting wire; 25. Housing; 26. Sealant; 3. Adhesive; 4. Battery management system. Detailed Implementation

[0033] The technical solutions in this application will now be described clearly and in detail with reference to the accompanying drawings.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this application.

[0035] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0036] In the description of the embodiments of this application, unless otherwise stated, " / " means "or". For example, A / B can mean A or B. The "and / or" in the text is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the embodiments of this application, "multiple" means two or more.

[0037] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0038] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0039] Pipelines are often equipped with temperature sensors to detect the temperature of the temperature-regulating medium flowing within them. However, in related technologies, temperature sensors frequently exhibit large measurement errors or even complete failure, resulting in poor measurement reliability.

[0040] The following analysis addresses the reasons for the large measurement errors in temperature sensors in related technologies.

[0041] In related technologies, the temperature sensor is installed through the side wall of the pipe, directly contacting the temperature-regulating medium inside the pipe, while the thermistor of the temperature sensor is located inside the pipe. This allows the temperature-regulating medium inside the pipe to easily come into direct contact with the thermistor, leading to phenomena such as temperature sensor leakage, short circuits, thermistor corrosion, and thermistor resistance value deviation, thus resulting in poor reliability of the temperature sensor measurement.

[0042] Referring to Table 1, in related technologies, pipes equipped with temperature sensors were immersed in water at 80 degrees Celsius for testing. After immersion for 200 hours, the resistance of the thermistors in most temperature sensors changed significantly, failing the test. After immersion for 400 hours, all temperature sensors failed. Furthermore, tests showed that the temperature sensors in these related technologies could not pass a 500-hour temperature surge test ranging from -40 to 125 degrees Celsius.

[0043] Table 1

[0044]

[0045] In addition, the temperature sensor is installed in the side wall of the pipe, that is, there is a through hole in the side wall of the pipe and the temperature sensor is installed in the through hole. This makes it easy for the temperature regulating medium in the pipe to leak out of the pipe through the through hole, resulting in the loss of the temperature regulating medium. Moreover, the leaked temperature regulating medium can easily come into direct contact with the individual cells of the battery pack, causing abnormal insulation of the battery pack and preventing the voltage of the battery pack from increasing.

[0046] In related technologies, temperature sensors can be fitted with sealing rings, with the outer circumferential surface of the sealing ring abutting against the inner wall of the through-hole. This seals the gap between the temperature sensor and the inner wall of the through-hole, reducing the risk of the temperature-regulating medium leaking out of the pipe. However, during the assembly of the temperature sensor and the pipe, issues such as uneven oiling of the sealing ring and deformation can easily occur due to assembly processes. This reduces the sealing performance of the sealing ring against the through-hole, allowing the temperature-regulating medium to easily leak out of the pipe. The main reason for the deformation of the sealing ring is that the temperature sensor is inserted at an angle during insertion into the through-hole, resulting in poor coaxiality between the sealing ring and the through-hole.

[0047] Please refer to Figure 1 , Figure 2 and Figure 3 This application provides a pipe assembly for a battery temperature control circuit. The pipe assembly includes a pipe body 1 and a temperature sensor 2. The temperature sensor 2 is disposed on the outer wall of the pipe body 1. Please refer to... Figure 4 and Figure 5 The temperature sensor 2 includes a thermistor 21, the outer surface of which is provided with a waterproof layer 22, and the thermistor 21 is configured to transfer heat to the pipe body 1.

[0048] By placing the temperature sensor 2 on the outer wall of the pipe body 1, the thermistor 21 and the pipe body 1 transfer heat to each other to detect the temperature of the temperature regulating medium inside the pipe body 1. Due to the obstruction of the side wall of the pipe body 1, the temperature regulating medium inside the pipe is not likely to directly contact the thermistor 21, which helps to reduce the risks of leakage, short circuit, corrosion of the thermistor 21, and resistance value deviation of the thermistor 21, thereby improving the measurement reliability of the temperature sensor 2. By providing a waterproof layer 22 on the outer surface of the thermistor 21, the risk of the thermistor 21 directly contacting water is reduced. Even if the pipe body 1 leaks and the temperature regulating medium flows out of the pipe body 1, the water in the flowing temperature regulating medium is not likely to directly contact the thermistor 21 due to the obstruction of the waterproof layer 22, which helps to reduce the risks of leakage, short circuit, corrosion of the thermistor 21, and resistance value deviation of the thermistor 21. In this way, the side wall of the pipe body 1 and the waterproof layer 22 work together to prevent the water in the pipe from contacting the thermistor 21. Under the double barrier effect, the risk of the thermistor 21 coming into contact with water is greatly reduced, which is conducive to improving the measurement reliability of the temperature sensor 2.

[0049] In this embodiment, the pipe assembly was immersed in water at 80 degrees Celsius for testing. After immersion for 800 hours, the resistance of the thermistor 21 showed no significant change. Furthermore, tests showed that the pipe assembly provided in this embodiment can pass a temperature surge test of -40 to 125 degrees Celsius for 500 hours.

[0050] Table 2

[0051]

[0052] In addition, the temperature sensor 2 is set on the outer wall of the pipe body 1, eliminating the through hole on the side wall of the pipe body 1. This makes it difficult for the temperature regulating medium inside the pipe body 1 to leak out of the pipe, which helps to reduce the loss of the temperature regulating medium and reduce the equipment failure rate.

[0053] The following is a detailed description.

[0054] This application provides a vehicle. The vehicle can be of various types; for example, it can be a sedan, an off-road vehicle, or a sport utility vehicle (SUV).

[0055] The vehicle provided in this application embodiment includes a battery, which can be of various types, such as a battery pack or a battery module.

[0056] The battery provided in this application includes an energy storage module and a temperature regulating pipeline. A temperature regulating medium flows through the temperature regulating pipeline, which is configured to exchange heat with the energy storage module. In some embodiments of this application, the temperature regulating medium can be water.

[0057] In some embodiments of this application, the energy storage module may include at least two battery cells, which are connected in series, parallel or mixed via a busbar.

[0058] The battery cell in this embodiment can be a secondary battery. After discharge, the active material of the secondary battery can be activated by charging and reused. The battery cell can be a lithium-ion battery, sodium-ion battery, sodium-lithium-ion battery, lithium metal battery, sodium metal battery, lithium-sulfur battery, magnesium-ion battery, nickel-metal hydride battery, nickel-cadmium battery, lead-acid battery, etc., and this embodiment is not limited to these.

[0059] The battery cells in this application embodiment can be prismatic batteries, cylindrical batteries, or pouch batteries, etc., and this application embodiment is not limited to these.

[0060] Of course, in some embodiments of this application, the battery provided in this application embodiment can also be applied to other electrical devices besides vehicles. Other electrical devices include mobile phones, portable devices, laptops, electric vehicles, electric toys, power tools, vehicles, ships, and spacecraft, among which spacecraft include airplanes, rockets, space shuttles, and spacecraft.

[0061] Please refer to Figure 3 , Figure 4 and Figure 5 The battery provided in this embodiment also includes a pipe assembly, which includes a pipe body 1 and a temperature sensor 2. The pipe body 1 is connected to a temperature regulating pipe, and the temperature sensor 2 is disposed on the outer wall of the pipe body 1. The temperature sensor 2 includes a thermistor 21, and a waterproof layer 22 is disposed on the outer surface of the thermistor 21. The thermistor 21 is configured to transfer heat to the pipe body 1.

[0062] By placing the temperature sensor 2 on the outer wall of the pipe body 1, the thermistor 21 and the pipe body 1 transfer heat to each other to detect the temperature of the temperature regulating medium inside the pipe body 1. Due to the obstruction of the side wall of the pipe body 1, the temperature regulating medium is less likely to directly contact the thermistor 21, which helps reduce the risks of leakage, short circuit, corrosion of the thermistor 21, and resistance value deviation of the thermistor 21, thereby improving the measurement reliability of the temperature sensor 2. By providing a waterproof layer 22 on the outer surface of the thermistor 21, the risk of the thermistor 21 directly contacting water is reduced. Even if the pipe body 1 leaks and the temperature regulating medium flows out, the water in the flowing temperature regulating medium is less likely to directly contact the thermistor 21 due to the obstruction of the waterproof layer 22, which helps reduce the risks of leakage, short circuit, corrosion of the thermistor 21, and resistance value deviation of the thermistor 21. In this way, the side wall of the pipe body 1 and the waterproof layer 22 work together to prevent the water in the pipe from contacting the thermistor 21. Under the double barrier effect, the risk of the thermistor 21 coming into contact with water is greatly reduced, which is conducive to improving the measurement reliability of the temperature sensor 2.

[0063] Moreover, the temperature sensor 2 is located on the outer wall of the pipe body 1, eliminating the through hole on the side wall of the pipe body 1. This makes it difficult for the temperature regulating medium inside the pipe body 1 to leak out of the pipe, which helps to reduce the loss of the temperature regulating medium and reduce the battery failure rate.

[0064] Furthermore, in this embodiment, the pipe body 1 is connected to the temperature regulating pipeline, enabling the temperature sensor 2 to measure the temperature of the temperature regulating medium. The measurement is highly reliable, which helps to keep the temperature of the temperature regulating medium within the target range, thereby keeping the temperature of the energy storage module within the target range and improving the power and charging efficiency of the energy storage module.

[0065] Please refer to Figure 3 , Figure 4 and Figure 5 It should be explained that, in this embodiment, the temperature sensor 2 is disposed on the outer wall of the pipe body 1. The side wall of the pipe body 1 isolates the temperature sensor 2 from the internal space of the pipe body 1. The temperature sensor 2 is disposed on the side of the pipe body 1 away from the internal space of the pipe body 1, and is connected to the outer wall of the pipe body 1, so that the thermistor 21 can transfer heat to the pipe body 1. In some embodiments of this application, the temperature sensor 2 can be disposed on the outer peripheral surface of the pipe body 1, that is, along the radial direction of the pipe body 1, the temperature sensor 2 is disposed on the side of the pipe body 1 away from the internal space of the pipe body 1, and is connected to the outer peripheral surface of the pipe body 1. The outer peripheral surface of the pipe body 1 has a large area, and disposing of the temperature sensor 2 on the outer peripheral surface of the pipe body 1 facilitates the arrangement of the temperature sensor 2.

[0066] Please refer to Figure 1 In some embodiments of this application, the pipe body 1 can be integrally formed, such as by injection molding or casting. This is beneficial to improving the sealing effect of the pipe body 1.

[0067] Please refer to Figure 1 In some embodiments of this application, the temperature sensor 2 can be connected to the battery management system (BMS) 4 via the connecting cable 24, so that the temperature sensor 2 can transmit the collected information to the battery management system 4.

[0068] Please refer to Figure 3 , Figure 4 and Figure 5 In some embodiments of this application, the thermistor 21 may be a negative temperature coefficient (NTC) thermistor 21 or a positive temperature coefficient (PTC) thermistor 21.

[0069] Please refer to Figure 3 , Figure 4 and Figure 5 In some embodiments of this application, the waterproof layer 22 covers the outer surface of the thermistor 21. This helps to improve the waterproof performance of the waterproof layer 22.

[0070] Please refer to Figure 3 , Figure 4 and Figure 5 In some embodiments of this application, the waterproof layer 22 includes a waterproof paint layer. Thus, at least a portion of the waterproof layer 22 is formed by coating the outer surface of the thermistor 21 with waterproof paint, achieving lower cost and better waterproof performance. In some embodiments of this application, the waterproof paint can be a conformal coating, which is also lower in cost and provides good waterproof performance. Examples of conformal coatings include silicone-based conformal coatings, acrylic-based conformal coatings, polyurethane-based conformal coatings, UV-cured conformal coatings, or modified silicone-based conformal coatings.

[0071] Please refer to Figure 3 , Figure 4 and Figure 5 In some embodiments of this application, the temperature sensor 2 further includes a circuit board 23, with the thermistor 21 integrated on the circuit board 23. The waterproof layer 22, in addition to covering the outer surface of the thermistor 21, can also cover the outer surface of the circuit board 23. This helps to reduce the failure rate of the temperature sensor 2.

[0072] Please refer to Figure 3 , Figure 4 and Figure 5 In some embodiments of this application, the temperature sensor 2 further includes a housing 25, with a thermistor 21 disposed within the housing 25. The housing 25 is filled with sealant 26 to fix the thermistor 21 to the housing 25. Thus, the housing 25 and the potting compound protect the thermistor 21, improving its reliability. It is understood that in this embodiment, a waterproof layer 22 is also disposed within the housing 25, with sealant 26 filling between the inner surface of the housing 25 and the outer surface of the waterproof layer 22. The outer surface of the waterproof layer 22 refers to the surface of the waterproof layer 22 away from the thermistor 21. The sealant 26 can be of various types; for example, it can be epoxy resin potting compound, silicone resin potting compound, or polyurethane potting compound, etc.

[0073] Please refer to Figure 3 , Figure 4 and Figure 5 In some embodiments of this application, the circuit board 23 may also be disposed inside the housing 25, and the sealant 26 may also be used to fix the circuit board 23 to the housing 25.

[0074] Please refer to Figure 3 , Figure 4 and Figure 5 In some embodiments of this application, a mounting groove 11 is formed on the outer wall of the pipe body 1, and the thermistor 21 is disposed in the mounting groove 11. By disposing the thermistor 21 in the mounting groove 11, the stability of the thermistor 21 on the outer wall of the pipe body 1 can be improved, and the outer wall of the pipe body 1 can protect the thermistor 21, which helps to reduce the risk of damage to the thermistor 21 and improve the reliability of the thermistor 21.

[0075] Please refer to Figure 3 , Figure 4 and Figure 5 In some embodiments of this application, the mounting groove 11 is filled with adhesive 3, which fixes the temperature sensor 2 to the inner surface of the mounting groove 11. In this way, the temperature sensor 2 is fixed in the mounting groove 11 by the adhesive 3, which helps to improve the stability of the thermistor 21 within the mounting groove 11. The thermistor 21 is less likely to collide with the inner surface of the mounting groove 11, which helps to reduce damage to the thermistor 21 and improve its reliability.

[0076] Please refer to Figure 3 , Figure 4 and Figure 5In some embodiments of this application, the adhesive 3 may be filled between the outer surface of the housing 25 and the inner surface of the mounting groove 11. In some embodiments of this application, the temperature sensor 2 may not include the housing 25, and the adhesive 3 may directly contact the outer surface of the waterproof layer 22, filling the space between the outer surface of the waterproof layer 22 and the inner surface of the mounting groove 11.

[0077] Please refer to Figure 3 , Figure 4 and Figure 5 In some embodiments of this application, the adhesive 3 is a waterproof adhesive. By making the adhesive 3 a waterproof adhesive, the adhesive 3 can not only be used to fix the temperature sensor 2 to the mounting groove 11, but also has a water barrier effect. Water leaking from the pipeline passes through the adhesive 3 and reaches the waterproof layer 22, which helps to further reduce the risk of water leaking from the pipeline coming into contact with the thermistor 21, thereby helping to further improve the measurement reliability of the temperature sensor 2.

[0078] In this embodiment, the waterproof adhesive can be of various types, for example, it can be epoxy resin potting compound, silicone resin potting compound or polyurethane potting compound, etc.

[0079] Please refer to Figure 3 , Figure 4 and Figure 5 In some embodiments of this application, a protrusion 12 is formed on the inner wall of the pipe body 1, and the protrusion 12 forms a mounting cavity 111, which is part of the mounting groove 11. The thermistor 21 is located inside the mounting cavity 111. Thus, the protrusion 12 on the inner wall of the pipe body 1 has a large contact area with the temperature-regulating medium inside the pipe body 1, making the temperatures of the protrusion 12 and the temperature-regulating medium closer. By placing the thermistor 21 within the mounting cavity 111 formed by the protrusion 12, the temperatures of the thermistor 21 and the protrusion 12 are closer, thereby making the temperatures of the thermistor 21 closer to those of the temperature-regulating medium, which helps to improve the measurement accuracy of the temperature sensor 2.

[0080] It is understood that in this embodiment of the application, the protrusion 12 is part of the pipe body 1.

[0081] Please refer to Figure 3 , Figure 4 and Figure 5 In some embodiments of this application, the protrusion direction of the protrusion 12 is radial to the pipe body 1. This helps to increase the contact area between the protrusion 12 and the temperature-regulating medium, thereby improving the measurement accuracy of the temperature sensor 2. In some embodiments of this application, the depth direction of the mounting groove 11 is the same as the protrusion direction of the protrusion 12. This facilitates the insertion of the thermistor 21 into the receiving cavity. The depth of the mounting groove 11 is shown in the first direction in the figure.

[0082] Please refer to Figure 3 , Figure 4 and Figure 5 In some embodiments of this application, the outer wall of the pipe body 1 has a protrusion 13 protruding outward along the radial direction of the pipe body 1, and the protrusion 13 forms a receiving cavity, in which a portion of the temperature sensor 2 is located. In this way, placing a portion of the temperature sensor 2 in the receiving cavity helps to improve the stability of the installation of the temperature sensor 2 and the pipe body 1.

[0083] Please refer to Figure 3 , Figure 4 and Figure 5 In some embodiments of this application, the depth direction of the mounting groove 11 is the same as the protrusion direction of the protrusion 12, the protrusion direction of the protrusion 13 is opposite to the protrusion direction of the protrusion 12, and the receiving cavity is a part of the receiving groove.

[0084] Please refer to Figure 3 , Figure 4 and Figure 5 Of course, in some embodiments of this application, the receiving cavity may not be part of the receiving groove. In some embodiments of this application, the receiving cavity has a mounting port, the orientation of which is opposite to the depth direction of the mounting groove 11. In this way, during the process of inserting the thermistor 21 into the mounting groove 11, a portion of the temperature sensor 2 also enters the receiving cavity through the mounting port, making the installation of the temperature sensor 2 more convenient.

[0085] Please refer to Figure 3 , Figure 4 and Figure 5 In some embodiments of this application, the pipe body 1 is made of polyamide resin. This gives the pipe body 1 high strength, high toughness, high heat resistance, high insulation, high wear resistance, high fatigue resistance, high corrosion resistance, and high weather resistance, and it is also relatively easy to process with low processing costs. Furthermore, polyamide resin has a certain degree of water absorption, and water absorbed by the pipe body 1 can easily flow to the vicinity of the thermistor 21. However, in this embodiment, a waterproof layer 22 is provided on the outer surface of the thermistor 21. The waterproof layer 22 can block the water absorbed by the pipe body 1, reducing the risk of water directly contacting the thermistor 21. Therefore, the pipe assembly provided in this embodiment can balance cost, the physical and chemical properties of the pipe body 1, and the measurement reliability of the temperature sensor 2.

[0086] Please refer to Figure 3 , Figure 4 and Figure 5In some embodiments of this application, the battery further includes a housing, with the energy storage module and temperature regulating pipeline all housed within the housing, and the pipeline body 1 passing through the side wall of the housing. By having the pipeline body 1 pass through the side wall of the housing, the temperature sensor 2 can detect the temperature of the temperature regulating medium just entering the housing (hereinafter referred to as the first temperature) or the temperature of the temperature regulating medium just leaving the housing (hereinafter referred to as the second temperature). The first and second temperatures can reflect the overall temperature level within the housing. Compared to collecting the temperature of a certain local area within the housing, collecting the first and second temperatures facilitates the control of the temperature level of the entire housing, ensuring that all parts within the housing are within the target temperature range, thereby significantly improving the charging efficiency or power of the battery.

[0087] Please refer to Figure 3 , Figure 4 and Figure 5 In some embodiments of this application, the temperature control pipeline is detachably connected to the pipeline body 1. This facilitates the installation of the pipeline body 1 on the housing.

[0088] Please refer to Figure 3 , Figure 4 and Figure 5 In some embodiments of this application, the temperature sensor 2 is disposed outside the enclosure. The internal space of the enclosure is often quite small, so disposing of the temperature sensor 2 outside the enclosure facilitates its placement. Furthermore, removing and installing the temperature sensor 2 does not require opening the enclosure, making maintenance and replacement of the temperature sensor 2 easier.

[0089] The above embodiments are merely illustrative of the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way.

Claims

1. A piping assembly for a temperature-regulating conduit in a battery, characterized in that, include: Pipe body; A temperature sensor is disposed on the outer wall of the pipe body. The temperature sensor includes a thermistor. The outer surface of the thermistor is provided with a waterproof layer. The thermistor is configured to transfer heat to the pipe body.

2. The pipe assembly according to claim 1, characterized in that, The outer wall of the pipe body is formed with an installation groove, and the thermistor is disposed in the installation groove.

3. The pipe assembly according to claim 2, characterized in that, The mounting groove is filled with adhesive, which fixes the temperature sensor to the inner surface of the mounting groove.

4. The pipe assembly according to claim 3, characterized in that, The adhesive is a waterproof adhesive.

5. The pipe assembly according to claim 2, characterized in that, The inner wall of the pipe body has a protrusion, the protrusion forms a mounting cavity, the mounting cavity is part of the mounting groove, and the thermistor is located in the mounting cavity.

6. The pipe assembly according to any one of claims 1 to 5, characterized in that, The waterproof layer includes a waterproof paint layer.

7. The pipe assembly according to any one of claims 1 to 5, characterized in that, The pipe body is made of polyamide resin.

8. A battery, characterized in that, include: Energy storage module; Temperature regulating pipeline, wherein a temperature regulating medium is circulated within the temperature regulating pipeline, and the temperature regulating pipeline exchanges heat with the energy storage module; The pipe assembly according to any one of claims 1 to 7, wherein the pipe body is in communication with the temperature regulating pipe.

9. The battery according to claim 8, characterized in that, It also includes a housing, in which the energy storage module and the temperature control pipeline are both housed, and the pipeline body passes through the side wall of the housing.

10. A vehicle, characterized in that, It includes the pipe assembly according to any one of claims 1 to 7, or the battery according to any one of claims 8 and 9.

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